CN115585196B - Split-type locking bidirectional transmission device and method for intermediate rod loading and unloading drilling rigs in coal mines - Google Patents
Split-type locking bidirectional transmission device and method for intermediate rod loading and unloading drilling rigs in coal minesInfo
- Publication number
- CN115585196B CN115585196B CN202211174614.2A CN202211174614A CN115585196B CN 115585196 B CN115585196 B CN 115585196B CN 202211174614 A CN202211174614 A CN 202211174614A CN 115585196 B CN115585196 B CN 115585196B
- Authority
- CN
- China
- Prior art keywords
- shaft
- locking
- positioning
- fan
- transmission device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/18—Connecting or disconnecting drill bit and drilling pipe
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
本发明提供了一种煤矿井下中间加卸杆钻机用分体锁定双向传动装置及方法，包括依次连接的动力轴和传动轴，动力轴和传动轴外部套装有锁定器；锁定器包括锁定座，锁定座包括中空的锁定轴，锁定轴上径向导通设置有在周向等间距布设的两个及以上定位仓；每个定位仓内安装有定位球；动力轴包括中空的动力轴体；动力轴体的外表面设置有弧形定位槽；动力轴的动力轴体套装在锁定轴内至定位仓与弧形定位槽径向对齐状态下，定位球的径向内侧能够进入弧形定位槽内实现锁定。本发明采用分体式结构、螺纹快速拆卸、轴向锁定防松、部件部分更换等技术手段，实现双向动力传递的同时，提高了传动装置使用寿命、拆卸更换效率，降低了综合使用成本。
This invention provides a split-type locking bidirectional transmission device and method for underground coal mine intermediate rod loading and unloading drilling rigs. It includes a power shaft and a transmission shaft connected in sequence, with a locking device fitted externally to both shafts. The locking device includes a locking seat, which contains a hollow locking shaft. Two or more positioning chambers are radially arranged at equal intervals in the circumferential direction on the locking shaft. Each positioning chamber contains a positioning ball. The power shaft includes a hollow power shaft body. An arc-shaped positioning groove is provided on the outer surface of the power shaft body. When the power shaft body is fitted inside the locking shaft until the positioning chambers are radially aligned with the arc-shaped positioning groove, the radially inner side of the positioning ball can enter the arc-shaped positioning groove to achieve locking. This invention employs a split structure, quick-release threaded connection, axial locking to prevent loosening, and partial component replacement techniques to achieve bidirectional power transmission while improving the service life of the transmission device, increasing disassembly and replacement efficiency, and reducing overall operating costs.
Description
Technical Field
The invention belongs to the technical field of underground tunnel drilling of coal mines, relates to a transmission device for a drilling machine, and particularly relates to a split locking bidirectional transmission device for an underground middle loading and unloading rod drilling machine of a coal mine and a use method.
Background
Drilling is an effective technical means for underground mine geological investigation and disaster prevention. The drilling machine is core equipment for drilling construction, and long-distance drilling construction is realized by continuously installing and detaching a drill rod. According to the different modes of the drill rod loading and unloading, the mode of loading and unloading the rod at the rear part and the mode of loading and unloading the rod at the middle are mainly adopted at present.
The rear loading and unloading rod refers to loading and unloading a drill rod from the rear part of the power head of the drilling machine, the water feeder is required to be detached firstly, then the drill rod is connected/detached, and then the water feeder is connected, and although a special transmission device is not required, the loading and unloading rod has long flow and consumes much time and is mainly used for a conventional drilling machine.
The middle loading and unloading rod is used for loading and unloading the drill rod from the middle of the drill power head and the clamp holder, a special transmission device is adopted, and when the drill rod is loaded and unloaded each time, only the threads between the transmission device and the drill rod are needed to be disassembled and connected, so that the loading and unloading rod is easy to operate and high in speed, and is mainly used for an automatic drill and an intelligent drill, and the automatic loading and unloading of the drill rod by the drill is realized. At present, all the transmission devices adopt an integrated structure, and the following defects exist in practical application:
(A) The service life is short. When drilling is performed, the screw thread between the transmission device and the drill rod needs to be frequently detached and connected, so that the connecting screw thread between the transmission device and the drill rod is easy to wear and lose efficacy, and the service life is short.
(B) The disassembly and replacement efficiency is low. When the transmission device is damaged and replaced, the whole transmission device needs to be detached from the power head of the drilling machine, and then a new transmission device is replaced and connected. The transmission device and the power head of the drilling machine are generally connected in a flange mode, the requirement of large torque transmission of the drilling machine is considered, the number of the connecting bolts is large, and each disassembly and assembly are long in time and low in efficiency.
(C) The comprehensive cost is high. Considering the requirement of large torque transmission of a drilling machine, in order to improve the overall strength of the transmission device, the transmission device is generally integrally formed by adopting large-diameter steel, the processing amount is large, the loss is large, and the transmission device is frequently replaced when in use, so that the comprehensive cost is very high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a split locking bidirectional transmission device for a middle-loading and unloading rod drilling machine in a coal mine and a use method thereof, which solve the technical problems of short service life, low disassembly and replacement efficiency and high comprehensive cost of the transmission device for the middle-loading and unloading rod drilling machine in the coal mine in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the split locking bidirectional transmission device for the underground coal mine middle loading and unloading rod drilling machine comprises a power shaft and a transmission shaft which are sequentially connected, wherein a locker is sleeved outside the power shaft and the transmission shaft.
The locking device comprises a locking seat, wherein the locking seat comprises a hollow locking shaft, two or more positioning bins which are distributed at equal intervals in the circumferential direction are arranged on the locking shaft in a radial conduction mode, positioning balls are arranged in each positioning bin, the positioning balls can move in the radial direction in the positioning bins, and the radial inner sides of the positioning balls can be exposed into the locking shaft.
The power shaft comprises a hollow power shaft body, an arc-shaped positioning groove is formed in the outer surface of the power shaft body, the power shaft body of the power shaft is sleeved in the locking shaft until the positioning bin is in radial alignment with the arc-shaped positioning groove, and the radial inner side of the positioning ball can enter the arc-shaped positioning groove to realize positioning and locking of the power shaft and the locking device.
The locking seat is sleeved with an adjusting sleeve capable of circumferentially rotating and axially moving, the adjusting sleeve comprises a hollow adjusting shaft, a circle of third positioning boss is arranged at the rear part of the inner wall of the adjusting shaft, a circle of arc-shaped limiting step is arranged at the joint between the third positioning boss and the rear part of the inner wall of the adjusting shaft, and the arc-shaped limiting step can limit the radial movement of the positioning ball.
The front part of the outer wall of the locking shaft is provided with a limit sleeve, the limit sleeve is positioned in the adjusting shaft, the adjusting shaft is internally provided with a spring sleeved outside the locking shaft, one end of the spring is propped against the limit sleeve, and the other end of the spring is propped against the third positioning boss.
The invention also has the following technical characteristics:
the front part of the inner wall of the adjusting shaft is provided with two or more first fan-shaped clamping blocks distributed at equal intervals along the circumferential direction, the limiting sleeve comprises a hollow limiting shaft, the outer wall of the limiting shaft is provided with two or more second fan-shaped clamping blocks at equal intervals along the circumferential direction, the outer wall of the limiting shaft is also provided with two or more third fan-shaped clamping blocks at equal intervals along the circumferential direction, the second fan-shaped clamping blocks are positioned behind the third fan-shaped clamping blocks, the number of the first fan-shaped clamping blocks, the second fan-shaped clamping blocks and the third fan-shaped clamping blocks are the same, and the first fan-shaped clamping blocks can be matched with the second fan-shaped clamping blocks and the third fan-shaped clamping blocks to block or misplacement, so that the front end stroke of the adjusting sleeve can be adjusted.
The front part of the outer wall of the locking shaft is provided with a third male thread, the inner wall of the limiting shaft is provided with a third female thread, and the locking shaft and the limiting shaft are connected through the matching installation of the third male thread and the third female thread.
The rear part of the outer wall of the locking shaft is provided with a second positioning boss which extends outwards and is used for limiting the rear end stroke of the adjusting sleeve.
The front end of the power shaft body is provided with a first male thread, the rear end of the transmission shaft body is provided with a first female thread, and the detachable connection locking between the power shaft body and the transmission shaft body is realized through the matching installation of the first male thread and the first female thread.
The rear end of the power shaft body is provided with a flange plate connected with a power head of the drilling machine, a group of axially-arranged bolt holes are circumferentially distributed on the flange plate, and the rear end face of the flange plate is provided with a sealing groove.
The transmission shaft comprises a hollow transmission shaft body, a positioning section is arranged at the front part of the outer side of the transmission shaft body, the outer diameter of the positioning section is smaller than the outer diameter of the transmission shaft body, a first positioning boss which stretches inwards is arranged at the front part of the inner wall of the locking shaft and is sleeved on the positioning section, and the first positioning boss axially limits through a shaft shoulder between the positioning section and the transmission shaft body, so that the limiting locking of the transmission shaft and the locker is realized.
The front end of the transmission shaft body is provided with a second male thread connected with the drill rod.
The invention also provides a use method of the split locking bidirectional transmission device for the underground coal mine middle loading and unloading rod drilling machine, and the method adopts the split locking bidirectional transmission device for the underground coal mine middle loading and unloading rod drilling machine.
Compared with the prior art, the invention has the following technical effects:
(I) The invention adopts the technical means of split structure, quick screw disassembly, axial locking and looseness prevention, part replacement and the like, realizes the bidirectional power transmission of the transmission device of the underground middle loading and unloading rod drilling machine of the coal mine, improves the service life of the transmission device, the disassembly and replacement efficiency, reduces the comprehensive use cost and provides a guarantee for the efficient middle loading and unloading rod drilling construction of an automatic and intelligent drilling machine.
(II) the invention enables bi-directional power transmission. Aiming at the problem that the threaded connection generally only can transmit unidirectional rotation power and is easy to loosen when rotating in the opposite direction, the locking device is used for limiting the thread loosening space between the power shaft and the transmission shaft, and the power shaft and the transmission shaft are tightly connected together, thereby realizing bidirectional power transmission.
(III) the invention has long service life. The bidirectional transmission device adopts a split type structure, so that a power shaft and a locker which are not easy to damage are separated from a transmission shaft which is easy to damage, the proportion of easy-damaged parts in the whole structure is reduced, and the whole service life is prolonged.
(IV) the invention has high replacement speed. When the bidirectional transmission device is replaced each time, only the limiting position of the locker is required to be adjusted, the connecting threads between the transmission shaft and the power shaft are disassembled and assembled, and the disassembly and reinstallation speed is high.
(V) the invention has low comprehensive cost. The bidirectional transmission device only needs to replace the transmission shaft after being damaged each time, thereby avoiding the whole replacement, and the transmission shaft has simple structure and low cost, thereby reducing the single replacement cost and improving the comprehensive economic benefit.
Drawings
FIG. 1 is a schematic diagram of the whole cross-sectional structure of a split locking bidirectional transmission device for a coal mine underground middle loading and unloading rod drilling machine.
Fig. 2 is a schematic cross-sectional structure of the power shaft.
Fig. 3 is a schematic cross-sectional view of a drive shaft.
Fig. 4 is a schematic overall sectional structure of the locker.
Fig. 5 is a schematic cross-sectional view of the locking seat.
Fig. 6 is a schematic view of the cross-sectional structure A-A in fig. 5.
Fig. 7 is a schematic elevational cross-sectional view of the adjustment sleeve.
Fig. 8 is a schematic left-hand view of the adjustment sleeve.
Fig. 9 is a right-side schematic view of the adjustment sleeve.
Fig. 10 is a schematic elevational cross-sectional view of the stop collar.
Fig. 11 is a left-hand structural schematic view of the stop collar.
Fig. 12 is a right-side view of the stop collar.
FIG. 13 is a schematic diagram of the connection and use of the bi-directional transmission.
The reference numerals in the figure are 1-power shaft, 2-transmission shaft, 3-locker, 4-drilling machine, 5-power head, 6-drill rod, 7-holder, 8-bidirectional transmission device and 9-drill bit. 10-drilling.
101-Power shaft body, 102-first male threads, 103-arc-shaped positioning grooves, 104-flange plates, 105-bolt holes and 106-sealing grooves.
201-A transmission shaft body, 202-a second male thread, 203-a first female thread, 204-a positioning section.
301-Locking seat, 302-adjusting sleeve, 303-positioning ball, 304-limit sleeve and 305-spring.
30101-Locking shaft, 30102-first positioning boss, 30103-second positioning boss, 30104-positioning cartridge, 30105-third male thread.
30201 To an adjusting shaft, 30202 to a first fan-shaped clamping block, 30203 to an arc-shaped limiting step and 30204 to a third positioning boss.
30401-A limiting shaft, 30402-a second fan-shaped clamping block, 30403-a third fan-shaped clamping block and 30404-a third female thread.
The following examples illustrate the invention in further detail.
Detailed Description
All the components and devices of the present invention are known in the art unless otherwise specified. Such as drills, power heads, drill rods, holders and drills, all using equipment known in the art.
The invention provides a split locking bidirectional transmission device for a middle loading and unloading rod drilling machine in a coal mine and a use method thereof, which are researched and designed for overcoming the defects of short service life, low disassembly and replacement efficiency, high comprehensive cost and the like of the split locking bidirectional transmission device for the middle loading and unloading rod drilling machine in the coal mine in the prior art.
The bidirectional transmission device comprises a power shaft, a transmission shaft and a locker sleeved outside the power shaft and the transmission shaft, wherein the power shaft and the transmission shaft are sequentially connected. When the bidirectional transmission device is used, the movable space between the power shaft and the transmission shaft is limited by the lock, the power shaft and the transmission shaft are connected together in a fastening way, forward rotation power and reverse rotation power of the drilling machine are transmitted to the drill rod, and then the drill bit is driven to drill broken rock, and when the transmission shaft is worn, the lock is detached, so that the transmission shaft can be replaced quickly. The invention solves the problems of easy abrasion of the screw thread of the drill rod frequently detached by the transmission device of the underground middle drill rod detaching machine of the coal mine, short service life, low detaching and replacing efficiency, high comprehensive cost and the like, and provides a guarantee for the high-efficiency middle drill rod detaching construction of the automatic and intelligent drill machine.
The following specific embodiments of the present application are provided, and it should be noted that the present application is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical scheme of the present application fall within the protection scope of the present application.
Example 1:
The embodiment provides a split locking bidirectional transmission device for a coal mine underground middle loading and unloading rod drilling machine, which comprises a power shaft 1 and a transmission shaft 2 which are sequentially connected, wherein a locker 3 is sleeved outside the power shaft 1 and the transmission shaft 2.
As shown in fig. 4, the lock 3 comprises a locking seat 301, the locking seat 301 comprises a hollow locking shaft 30101, two or more positioning bins 30104 distributed at equal intervals in the circumferential direction are arranged on the locking shaft 30101 in a radial conduction mode, positioning balls 303 are mounted in each positioning bin 30104, the positioning balls 303 can move radially in the positioning bins 30104, and the radial inner sides of the positioning balls 303 can be exposed into the locking shaft 30101.
As shown in fig. 2, the power shaft 1 comprises a hollow power shaft body 101, an arc-shaped positioning groove 103 is formed in the outer surface of the power shaft body 101, the power shaft body 101 of the power shaft 1 is sleeved in the locking shaft 30101 until the positioning bin 30104 is in radial alignment with the arc-shaped positioning groove 103, and the radial inner side of the positioning ball 303 can enter the arc-shaped positioning groove 103 to realize positioning and locking of the power shaft 1 and the locking device 3.
As shown in fig. 4, an adjusting sleeve 302 capable of rotating circumferentially and moving axially is sleeved on the locking seat 301, as shown in fig. 7, 8 and 9, the adjusting sleeve 302 comprises a hollow adjusting shaft 30201, a circle of third positioning boss 30204 is arranged at the rear part of the inner wall of the adjusting shaft 30201, a circle of arc-shaped limiting step 30203 is arranged at the joint between the third positioning boss 30204 and the rear part of the inner wall of the adjusting shaft 30201, and the arc-shaped limiting step 30203 can limit radial movement of the positioning ball 303.
As shown in fig. 4, a stop collar 304 is installed at the front part of the outer wall of the locking shaft 30101, the stop collar 304 is located in the adjusting shaft 30201, a spring 305 sleeved outside the locking shaft 30101 is installed in the adjusting shaft 30201, one end of the spring 305 is propped against the stop collar 304, and the other end of the spring 305 is propped against a third positioning boss 30204.
In this embodiment, as shown in fig. 5 and 6, the positioning chamber 30104 has a bowl-shaped structure.
As a specific scheme of the embodiment, as shown in fig. 7, 8 and 9, two or more first fan-shaped clamping blocks 30202 are arranged at the front part of the inner wall of the adjusting shaft 30201 at equal intervals along the circumferential direction, as shown in fig. 10, 11 and 12, the limiting sleeve 304 comprises a hollow limiting shaft 30401, two or more second fan-shaped clamping blocks 30402 are arranged at the outer wall of the limiting shaft 30401 at equal intervals along the circumferential direction, two or more third fan-shaped clamping blocks 30103 are also arranged at the outer wall of the limiting shaft 30401 at equal intervals along the circumferential direction, the second fan-shaped clamping blocks 30402 are located behind the third fan-shaped clamping blocks 30103, the number of the first fan-shaped clamping blocks 30202, the second fan-shaped clamping blocks 30402 and the third fan-shaped clamping blocks 30103 is the same, and the first fan-shaped clamping blocks 30402 can be blocked or misplaced by matching with the second fan-shaped clamping blocks 30402, so that the front end of the adjusting sleeve 302 can be adjusted.
Further preferably, as shown in fig. 4, 5 and 10, the front part of the outer wall of the locking shaft 30101 is provided with a third male thread 30105, the inner wall of the limiting shaft 30401 is provided with a third female thread 30404, and the matching installation of the third male thread 30105 and the third female thread 30404 realizes the detachable connection and locking of the locking shaft 30101 and the limiting shaft 30401.
As a preferred version of this embodiment, as shown in fig. 4 and 5, the rear portion of the outer wall of the lock shaft 30101 is provided with a second outwardly extending positioning tab 30103, the second positioning tab 30103 being adapted to define the rear end travel of the adjustment sleeve 302.
As a preferable scheme of this embodiment, as shown in fig. 1, 2 and 3, a first male thread 102 is provided at the front end of the power shaft body 101, a first female thread 203 is provided at the rear end of the transmission shaft body 201, and the connection between the power shaft body 101 and the transmission shaft body 201 is achieved by the cooperation of the first male thread 102 and the first female thread 203.
As shown in fig. 2, a flange plate 104 connected with a power head 5 of a drilling machine 4 is arranged at the rear end of a power shaft body 101, a group of bolt holes 105 which are axially formed in the flange plate 104 are circumferentially distributed, and a sealing groove 106 is arranged at the rear end face of the flange plate 104.
As a preferred scheme of the embodiment, as shown in fig. 3 and 5, the transmission shaft 2 comprises a hollow transmission shaft body 201, a positioning section 204 is arranged at the front part of the outer side of the transmission shaft body 201, the outer diameter of the positioning section 204 is smaller than the outer diameter of the transmission shaft body 201, a first positioning boss 30102 stretching inwards is arranged at the front part of the inner wall of the locking shaft 30101, the first positioning boss 30102 is sleeved on the positioning section 204, and the first positioning boss 30102 performs axial limiting through a shaft shoulder between the positioning section 204 and the transmission shaft body 201, so that limiting locking of the transmission shaft 2 and the locking device 3 is realized.
As a preferred solution of this embodiment, as shown in fig. 3, the front end of the transmission shaft body 201 is provided with a second male thread 202 connected to the drill rod 6.
In this embodiment, the first male thread 102, the first female thread 203, the second male thread 202, the third male thread 30105, and the third female thread 30404 are all positive threads.
Example 2:
The embodiment provides a use method of the split locking bidirectional transmission device for the underground coal mine middle loading and unloading rod drilling machine, and the split locking bidirectional transmission device for the underground coal mine middle loading and unloading rod drilling machine provided in the embodiment 1 is adopted.
As shown in fig. 13, the use method specifically includes the following steps:
step one, mounting a power shaft:
After a gasket is installed in the seal groove 106 of the power shaft 1, the power shaft 1 is connected to the power head 5 of the drilling machine 4 by bolts.
Step two, mounting and locking a transmission shaft:
The method comprises the steps of firstly connecting a transmission shaft 2 with a power shaft 1 through threads, secondly adjusting the relative positions of an adjusting sleeve 302 and a limiting sleeve 304 of a locker 3, blocking a first fan-shaped clamping block 30202 by a third fan-shaped clamping block 30403, avoiding the first fan-shaped clamping block 30202 from moving backwards under the action of a spring 305, then sleeving the locker 3 from the front end of the transmission shaft 2 until a first positioning boss 30102 of the locker 3 is tightly propped against a shaft shoulder between a positioning section 204 of the transmission shaft 2 and a transmission shaft body 201, enabling a positioning bin 30104 of the locker 3 to be opposite to an arc-shaped positioning groove 103 of the power shaft 1, rotating the adjusting sleeve 302, enabling the first fan-shaped clamping block 30202 to be dislocated with the third fan-shaped clamping block 30403 under the action of the spring 305, enabling a positioning ball 303 to expose out of a positioning bin 30104 and enter an arc-shaped positioning groove 103 of the power shaft 1, and finally rotating the adjusting sleeve 302 until the first fan-shaped clamping block 30202 is blocked by the second fan-shaped clamping block 30402.
Step three, using a bidirectional transmission device:
The bidirectional transmission device 8 is a split locking bidirectional transmission device for a coal mine underground middle loading and unloading rod drilling machine, the front end of the transmission shaft 2 is connected with the drill rod 6 through threads, the bidirectional transmission device 8 is matched with the power head 5 and the clamp holder 7 of the drilling machine 4 to load and unload the drill rod 6, forward rotation power and feeding and pulling power of the drilling machine 4 are transmitted to the bottom of a hole through the bidirectional transmission device 8 and the drill rod 6, the drill rod 6 drives the drill bit 9 to rotate to break rock, and drilling 10 is carried out, and in the use process of the bidirectional transmission device 8, the power shaft 1 and the transmission shaft 2 are kept in a fastening connection state all the time.
Step four, replacing a transmission shaft:
when the second male thread 202 of the transmission shaft 2 is worn to a set threshold value, firstly, the adjusting sleeve 302 is rotated until the first fan-shaped clamping block 30202 is dislocated by the second fan-shaped clamping block 30402, the adjusting sleeve 302 is pulled forward until the first fan-shaped clamping block 30202 exceeds the third fan-shaped clamping block 30403, the adjusting sleeve 302 is rotated, the first fan-shaped clamping block 30202 is blocked by the third fan-shaped clamping block 30403 to prevent the first fan-shaped clamping block 30202 from moving backwards under the action of the spring 305, secondly, after the adjusting sleeve 302 moves forward, the positioning ball 303 is retracted from the positioning bin 30104, the positioning ball 303 is separated from the arc-shaped positioning groove 103 to remove the locker, then the threaded connection between the transmission shaft 2 and the power shaft 1 is removed, and secondly, the new transmission shaft 2 is installed and locked.
As a preferable scheme of the embodiment, in the third step, the bidirectional transmission device 8 includes two working conditions of forward rotation transmission and reverse rotation transmission when in use:
forward rotation driving condition:
when the drill rod 6 is additionally arranged or drilling is performed, the power head 5 of the drilling machine 4 rotates forwards to drive the power shaft 1 of the bidirectional transmission device 8 to rotate forwards, the connecting threads between the power shaft 1 and the transmission shaft 2 bear fastening torque, the threads between the power shaft 1 and the transmission shaft 2 are screwed up and are acted by the first positioning boss 30102 and the positioning ball 303 of the locking device 3, the power shaft 1 and the transmission shaft 2 keep in a fastening connection state, forward rotation power is transmitted to the drill rod 6 connected with the transmission shaft 2, the connecting threads between the transmission shaft 2 and the drill rod 6 are screwed up, or the hole bottom drill bit 9 is driven to rotate for rock breaking.
Reverse rotation driving condition:
When the drill rod 6 is disassembled, the power head 5 of the drilling machine 4 reversely rotates to drive the power shaft 1 of the bidirectional transmission device 8 to reversely rotate, the connecting threads between the power shaft 1 and the transmission shaft 2 bear the loosening torque to generate a disengaging trend, and under the action of the first positioning boss 30102 and the positioning ball 303 of the locking device 3, the power shaft 1 and the transmission shaft 2 lack of a loosening space to continuously maintain a fastening connection state, and the reverse rotation power is transmitted to the drill rod 6 connected with the transmission shaft 2 to disassemble the connection between the transmission shaft 2 and the drill rod 6.
Claims (6)
1. The split locking bidirectional transmission device for the underground coal mine middle loading and unloading rod drilling machine is characterized by comprising a power shaft (1) and a transmission shaft (2) which are sequentially connected, wherein a locker (3) is sleeved outside the power shaft (1) and the transmission shaft (2);
The locking device (3) comprises a locking seat (301), wherein the locking seat (301) comprises a hollow locking shaft (30101), and two or more positioning bins (30104) which are distributed at equal intervals in the circumferential direction are arranged on the locking shaft (30101) in a radial conduction mode, each positioning bin (30104) is internally provided with a positioning ball (303), the positioning ball (303) can move radially in the positioning bin (30104), and the radial inner side of the positioning ball (303) can be exposed into the locking shaft (30101);
The power shaft (1) comprises a hollow power shaft body (101), wherein an arc-shaped positioning groove (103) is formed in the outer surface of the power shaft body (101), the power shaft body (101) of the power shaft (1) is sleeved in the locking shaft (30101) until the radial inner side of the positioning ball (303) can enter the arc-shaped positioning groove (103) when the positioning bin (30104) is in radial alignment with the arc-shaped positioning groove (103), and positioning locking of the power shaft (1) and the locker (3) is achieved;
An adjusting sleeve (302) capable of circumferentially rotating and axially moving is sleeved on the locking seat (301), the adjusting sleeve (302) comprises a hollow adjusting shaft (30201), a circle of third positioning boss (30204) is arranged at the rear part of the inner wall of the adjusting shaft (30201), a circle of arc-shaped limiting step (30203) is arranged at the joint between the third positioning boss (30204) and the rear part of the inner wall of the adjusting shaft (30201), and the arc-shaped limiting step (30203) can limit the radial movement of the positioning ball (303);
A limiting sleeve (304) is arranged at the front part of the outer wall of the locking shaft (30101), the limiting sleeve (304) is positioned in the adjusting shaft (30201), a spring (305) sleeved outside the locking shaft (30101) is arranged in the adjusting shaft (30201), one end of the spring (305) is propped against the limiting sleeve (304), and the other end of the spring (305) is propped against a third positioning boss (30204);
The front part of the inner wall of the adjusting shaft (30201) is provided with two or more first fan-shaped clamping blocks (30202) which are distributed at equal intervals along the circumferential direction, the limiting sleeve (304) comprises a hollow limiting shaft (30401), the outer wall of the limiting shaft (30401) is provided with two or more second fan-shaped clamping blocks (30402) which are distributed at equal intervals along the circumferential direction, the outer wall of the limiting shaft (30401) is also provided with two or more third fan-shaped clamping blocks (30103) which are distributed at equal intervals along the circumferential direction, the second fan-shaped clamping blocks (30402) are positioned behind the third fan-shaped clamping blocks (30103), the number of the first fan-shaped clamping blocks (30202) is the same as that of the second fan-shaped clamping blocks (30402) and the third fan-shaped clamping blocks (30103), and the first fan-shaped clamping blocks (30202) can be matched with the second fan-shaped clamping blocks (30103) to block or dislocate, and the front end stroke of the adjusting sleeve (302) can be adjusted;
the rear part of the outer wall of the locking shaft (30101) is provided with a second positioning boss (30103) which stretches outwards, and the second positioning boss (30103) is used for limiting the rear end stroke of the adjusting sleeve (302);
the front end of the power shaft body (101) is provided with a first male thread (102), the rear end of the transmission shaft body (201) is provided with a first female thread (203), and the connection between the power shaft body (101) and the transmission shaft body (201) is realized through the matching installation of the first male thread (102) and the first female thread (203).
2. The split locking bidirectional transmission device for the underground coal mine middle loading and unloading rod drilling machine, according to claim 1, is characterized in that a third male thread (30105) is arranged at the front part of the outer wall of the locking shaft (30101), a third female thread (30404) is arranged on the inner wall of the limiting shaft (30401), and the locking shaft (30101) and the limiting shaft (30401) are detachably connected and locked through the matched installation of the third male thread (30105) and the third female thread (30404).
3. The split locking bidirectional transmission device for the underground coal mine middle loading and unloading rod drilling machine is characterized in that a flange plate (104) connected with a power head (5) of a drilling machine (4) is arranged at the rear end of a power shaft body (101), a group of bolt holes (105) which are axially formed are circumferentially distributed on the flange plate (104), and a sealing groove (106) is formed in the rear end face of the flange plate (104).
4. The split locking bidirectional transmission device for the underground coal mine middle loading and unloading rod drilling machine, as set forth in claim 1, is characterized in that the transmission shaft (2) comprises a hollow transmission shaft body (201), a positioning section (204) is arranged at the front part of the outer side of the transmission shaft body (201), the outer diameter of the positioning section (204) is smaller than that of the transmission shaft body (201), a first positioning boss (30102) stretching inwards is arranged at the front part of the inner wall of the locking shaft (30101), the first positioning boss (30102) is sleeved on the positioning section (204), and the first positioning boss (30102) is axially limited through a shaft shoulder between the positioning section (204) and the transmission shaft body (201) to realize limiting locking of the transmission shaft (2) and the locking device (3).
5. The split locking bidirectional transmission device for the underground coal mine middle loading and unloading rod drilling machine according to claim 1, wherein the front end of the transmission shaft body (201) is provided with a second male thread (202) connected with a drill rod (6).
6. A method for using the split locking bidirectional transmission device for the underground coal mine middle loading and unloading rod drilling machine, which is characterized in that the split locking bidirectional transmission device for the underground coal mine middle loading and unloading rod drilling machine is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211174614.2A CN115585196B (en) | 2022-09-26 | 2022-09-26 | Split-type locking bidirectional transmission device and method for intermediate rod loading and unloading drilling rigs in coal mines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211174614.2A CN115585196B (en) | 2022-09-26 | 2022-09-26 | Split-type locking bidirectional transmission device and method for intermediate rod loading and unloading drilling rigs in coal mines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115585196A CN115585196A (en) | 2023-01-10 |
| CN115585196B true CN115585196B (en) | 2026-04-07 |
Family
ID=84777912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211174614.2A Active CN115585196B (en) | 2022-09-26 | 2022-09-26 | Split-type locking bidirectional transmission device and method for intermediate rod loading and unloading drilling rigs in coal mines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115585196B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1338377A2 (en) * | 2002-02-15 | 2003-08-27 | BIESSE S.p.A. | Drilling unit for components of wood or similar and associated tool spindle |
| CN114922573A (en) * | 2022-05-31 | 2022-08-19 | 中国石油大学(北京) | Self-adaptive centralizer for drilling acceleration |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001153158A (en) * | 1999-09-13 | 2001-06-08 | Ntn Corp | Axle device |
| JP3713262B2 (en) * | 2003-01-15 | 2005-11-09 | 新日高株式会社 | Double pipe drilling equipment |
| CN108361320B (en) * | 2018-04-12 | 2023-10-03 | 吉林大学 | Dual-channel bidirectional spindle buffer device constructed with nitrogen gas springs |
| CN112922531B (en) * | 2021-02-24 | 2022-06-24 | 中煤科工集团西安研究院有限公司 | Anti-backflow directional drill bit with back flushing function and construction method thereof |
| CN216894274U (en) * | 2022-04-07 | 2022-07-05 | 中煤科工集团重庆研究院有限公司 | Joint detachable type driving drill rod |
-
2022
- 2022-09-26 CN CN202211174614.2A patent/CN115585196B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1338377A2 (en) * | 2002-02-15 | 2003-08-27 | BIESSE S.p.A. | Drilling unit for components of wood or similar and associated tool spindle |
| CN114922573A (en) * | 2022-05-31 | 2022-08-19 | 中国石油大学(北京) | Self-adaptive centralizer for drilling acceleration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115585196A (en) | 2023-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2896778B1 (en) | Quick release down-the-hole hammer drill bit assembly | |
| US12584356B2 (en) | Power head of directional drill | |
| CN110259391B (en) | Forward and reverse rotation large torque transmission device | |
| CN112360354A (en) | Mining drill rod assembly capable of rotating forwards and backwards | |
| CN112627870B (en) | Hollow grouting anchor rod rotary head | |
| CN213450280U (en) | Forward and reverse automatic detachable drill pipe joint | |
| CN115467902B (en) | Quick-change bidirectional transmission device and method for intermediate loading and unloading rod drilling rig in coal mine | |
| CN216894274U (en) | Joint detachable type driving drill rod | |
| CN221722741U (en) | A forward and reverse interlocking bidirectional transmission device for intermediate loading and unloading rod drilling rigs in coal mines | |
| CN223282030U (en) | Drill rod dismounting structure | |
| CN112324362A (en) | Positive and negative rotation automatic detachable drill rod | |
| CN118774644B (en) | Drilling rig power head | |
| AU2007215377A1 (en) | A reversible, percussive, ram-boring machine | |
| CN115585196A (en) | Split locking two-way transmission device and method for intermediate loading and unloading rod drilling rig in coal mine | |
| WO2020016137A1 (en) | A drill bit assembly for fluid-operated percussion drill tools | |
| US12123260B2 (en) | Drill bit assembly for fluid-operated percussion drill tools | |
| CN110043202B (en) | Centrifugal slag discharge type radial piston chuck, power head and drilling machine | |
| CN111305770B (en) | Five-jaw slip hydraulic chuck | |
| CN115596365B (en) | Bidirectional self-locking transmission wired transmission drill rod and method for underground directional drilling of coal mine | |
| CN118774575B (en) | Drilling drive system | |
| CN113399693A (en) | Boring bar structure with central water outlet and automatic cutter grabbing and loosening functions | |
| CN220539570U (en) | Drilling machine power head | |
| CN222810773U (en) | Drilling rig power head | |
| CN214463960U (en) | Drill rod quick connector and drill rod comprising same | |
| CN114856559B (en) | Underground coal mine rapid-plugging high-pressure dynamic sealing rotary water feeder and use method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |