JPS5980888A - Splic rod detaching device of drilling apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a joint/throat removal device for a drilling device.

In a drilling device, that is, a device that drills a hole in rock, etc. while applying blows and rotation to the drilling mouth and throat with a drifter, when drilling a hole to a depth of 4, the drilling rod is connected to the drilling rod through a joint sleeve. Multiple connecting rods are connected to lengthen the overall length of the mouth and throat.

Conventionally, when removing the above-mentioned joint rods in order from the rear, (1) all the joint sleeves were screwed together by applying a blow with a drifter from behind with the tip of the drilling rod in contact with the end of the deep hole; (2) Retract all the rods by the length of the joint rod, (3) Chuck the rearmost joint rod that protrudes from the deep hole, (4) Operate the drifter in forward rotation, and connect the drifter and the rearmost joint rod. To strengthen the tightening of the joint sleeve that connects the lot,
(5) The joint sleeve at the front end of the rearmost connecting rod is chucked to operate the drifter in reverse rotation (1
Generally, a method is used in which the joint rod located at the rear is separated from the joint sleeve at the front end with the joint sleeve attached to the rear end through the steps of (5).

However, due to inexperience with such work, the above procedure may be incorrectly performed, or each stage of work may not be completed completely, resulting in the rod being separated from a different location from the intended location.

On the other hand, as disclosed in Japanese Patent Publication No. 6.3-Gua/So-Otsu, a pair of friction rollers are rotated and fitted onto the circumferential surface of the connecting rod from above the rod, and a joint sleeve at the front end of the connecting rod is fitted. There is a known device in which the rotation of the shank rod of the drifter is transmitted to the joint rod via a friction roller while the drifter is chucked, thereby rotating the joint rod in the opposite direction and separating it. As the rubber wears, slippage tends to occur between the friction roller and the connecting rod, and the connecting rod may not be separated smoothly.

In view of this, the present invention provides a movable member that is movable with respect to the rod axis position, and includes a rotating shaft having a male thread and a pressing piston that moves forward and backward in the axial center of the rotating shaft. Screw into the joint sleeve at the rear end of the joint rod,
A drilling device that can reliably separate the joint rod by rotating the rotary shaft in the opposite direction by pressing the rear end surface of the rod with a suppression piston to increase the bonding force between the rotating shaft, joint sleeve, and joint rod. The present invention provides a connecting rod removal device.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below based on embodiments with reference to the drawings.

Drilling device 1 shown in plan view in Figure 1 and side view in Figure 2
, reference numeral 2 denotes a guide cell for guiding the drifter 6, and a clamping means 4 for clamping the joint sleeve at the front end of the connecting rod is disposed at the front end thereof. A movable member 5, which will be described later, is provided so as to be rotatable from the side with respect to the joint rod axis position.

The triftalo is equipped with a shank rod 6 that projects forward, and inside the drifter there are provided a rotating means for rotating the shank rod 6 and a striking means for reciprocating the shank rod 6 back and forth.

The drilling rod and connecting rod with the bit attached to the tip are connected to the shank rod 6 (see Fig. 2 and Fig. 2).
Then, rotation and impact are applied by the rotating means and impacting means to drill a hole.

The clamping means 4 includes a pair of rotatable lamp arms 7.
．． 7, and each clamp arm 7.7 has a cylinder device 8.
．． The actuation of the cylinder device 8.8 rotates the clamp arm 7.7 to clamp the joints 1 snorf, or
C Masaku is made to guide the opening and throat and υ. This drilling mouth/throat guide is performed for centering IJ during counterboring in the drilling hole, and the clamping means 4 has a function as a centralizer.

On the side surface of the kite cell 2, there is a first storage body 1 that stores the front end 11, the flaket 10, and the joint/nod 11.
The 2nd and 2nd storage bodies 16 are fixed in order, and this flaket 10 and each storage body 12 and 16 are supported by upper and lower rods 14, 15, and guide cells. Upper rod 1
4 is a rotary cylinder 17 that is fitted into a shaft 16 whose front end is fixed to a flaket 10 so as to be rotatable and movable back and forth; te'9zru. A mouth/throat clamping means 18 for clamping the joint/throat 11 is provided at the front end of the rotary cylinder 17.
A sleeve clamping means 19 for clamping the joints 1 nose is attached to the rear end of the rotary cylinder 17.
At the rear end of the mandrel 16 is the movable member) r: % I
Izo4 is installed.

As shown in FIG. 3, the first storage compartment 12 includes a circular storage part 21 with an opening at the upper end.
A rotary plate 22 fixed to the lower rod 15 is fitted in the. A number of cutout grooves 23 are formed around the rotating plate 22, and an index rotating means 2 connected to the rear end of the lower rod 15 is formed.
4, by intermittently rotating the rotary plate 22 in one direction via the lower rod 15, the notch groove 26 is successively inserted into the storage portion 2.
The connecting rod 11 is received so as to face the opening of the housing part 1, and the connecting rod 11 can be held between the notch groove 26 and the circumferential surface of the storage part 21.

Further, the first storage body 12 and the rotary cylinder 17 are connected by a swing cylinder device 25. That is, the cylinder 25a of the swing cylinder device 25 is connected to the first storage body 12, and the piston rod 25b is connected to the rotating cylinder 17, and the rotating cylinder 17 is connected by moving the piston rod 25b back and forth.
The movable member 5 and the rod clamping means 1 are rotated.
8 and sleeve clamp means 19 are rotated. The structure of the second storage body 16 is similar to that of the first storage body 12 except that the swing cylinder device 25 is not provided.

As shown in FIG. 2, the rod clamping means 18 includes a rotary cylinder 17 placed between a semicircular notch 26 provided on the side of the center and a notch 28 of a fixing member 27, and then clamping the fixing member 2 with bolts.
It is fixed to this rotary cylinder 17 by tightening the clamp 7 to the main body of the clamping means.

The rod clamping means 18 is attached to its lower end so as to be movable downwardly by a claw mounting portion 29 or a cylinder means. It is attached so that it can rotate.
Both claw pieces 60, 60 are rotated to grip the connecting rod 11. Further, the rod clamping means 18 is configured such that, due to the rotation of the rotary cylinder 17 by the swing cylinder device 25, the claw mounting portions 29 of the claw pieces 60. The connecting rod receivers of each opening of the storage body 12 and the second storage body 16 are set so as to be able to reciprocate between the receiving position and the receiving position.

The sleeve clamping means 19 is of similar construction to the rod clamping means 18.

The movable member 5 has a mounting portion 6 attached to the rear end of the mandrel 16.
1 and a movable part 66 equipped with a rotating shaft 62. That is, as shown in FIG. 5, in the mounting part 61, the rear end of the mandrel 16 is fitted between a notch 64 formed in the main body of the mounting part and a notch 66 formed in the mounting bracket 65, and the mounting bracket 65 is bolted. It is rotatably attached to the shaft 16 by being fixed to the attachment portion main body. This mounting portion 61 is connected to the sleeve clamping means 19 by a second driving means 41, which will be described later, and the movable member 5
is adapted to rotate together with the sleeve clamp means 19 by the operation of the swing cylinder device 25. On the other hand, the movable part 66 is connected to the mounting part 61 by a cylinder device 67 for advancing and retreating, and the cylinder device 37 for advancing and retreating and the cylinder device 25 for swinging are connected to the rotating shaft 3.
A first driving means 68 is configured to move the rod 2 relative to the rod axis position of the drilling tube. That is, in the forward/backward cylinder device 67, the cylinder 37a is attached to the mounting portion 61,
The piston rod 37b is connected to the movable part 63,
The rotating shaft 62 is rotated near the rod axial center position by the operation of the swing cylinder device 25, and further reaches this rod axial center position by the operation of the advance/retreat/linda device 67.

In addition, the second. In the driving means 41, the cylinder 41a is connected to the sleeve clamp means 19, and the piston rod 41b is connected to the attachment part 31 of the movable member 5, and the movable member 5, that is, the rotating shaft 62, is moved by moving the piston rod 41b back and forth.
It is made to move back and forth.

The structure of the rotating shaft 62 of the movable member 5 and its surroundings is shown in FIG.

That is, the rotating shaft 32 is rotatably supported by the body 44 of the movable part 33, and a male threaded part 45 that can be screwed into the female threaded part of the joint sleeve is formed at the front end. It protrudes further forward. Further, a third drive means 46 for rotating the rotating shaft 62 in forward and reverse directions is linked to the rear end of the rotating shaft 32. In this third drive means 46, 47 is a motor for forward and reverse rotation, and the motor 47 is connected to the rear end of the rotary shaft roller 2 via gears 48 and 49.

Further, the rotating shaft 62 is cylindrical, and the suppressing piston 50 is inserted concentrically with the rotating shaft 32 using the rotating shaft 62 as a cylinder body. In other words, this pressing piston 5
0 has a small diameter rod part 52 connected to a large diameter piston part 51, and the cylinder hole of the rotating shaft 62 has a cylinder part 56 which accommodates the piston part 51 provided in the center part, and a cylinder part 56 provided in the front part which accommodates the piston part 51. It consists of a rod insertion hole 54 through which the octopus part 52 passes, and an oil inlet/outlet hole 55 provided at the rear. The pressing piston 50 is configured such that the rod portion 52 protrudes from the front end of the male threaded portion 45 when hydraulic pressure is applied from the oil inlet/outlet hole 55 .

Next, to explain the operation of the above embodiment, when drilling a hole, the drilling loft is connected to the shank loft of the drifter 3 via the joint sleeve, and the trift rod is guided by the guide cell 2 and moved forward. Drilling is performed by rotating and impacting the drilling rod with a drifter 6. Therefore, when drilling a deep hole, the connecting rod 11 is added to the drilling rod and the connecting rod 11 is recovered.
In this case, the connecting rod 11 is held by the rod clamping means 18 and the sleeve clamping means 19 with a joint sleeve attached to the rear end, and the rod axis of the drilling tube is moved to the storage position supported by each storage body 12.16. Move between heart positions.

The movement of the splicing lot 11 is shown in FIG. 7 in terms of the relationship between the lot clamping means 18 and the first storage body 12. That is, the connecting rod 11 performs the above movement by the rotation of the rod clamping means 18 and the sleeve clamping means 19 due to the operation of the swing/linder device 25.

When each clamping means 18, 19 grips or detaches the joint rod 11 and the joint sleeve, the claws 60, 60 rotate and the claw mounting portion 29 moves forward and backward.

The procedure for recovering the tie rod after deep hole drilling is shown in FIGS. 2-73.

That is, as shown in FIG. 2, a first joint rod 57a and a second joint sleeve 57b are connected to the drilling mouth/throat 56 via a first joint sleeve 58a and a second joint sleeve 58b, respectively. , after connecting the rear end of the second joint rod 57b to the drifter 6 via the third joint sleeve 58c and drilling a hole, the joint rod 57a
, 57b, first, a blow is applied from behind by the drifter 3 while the tip of the drilling rod 56 is in contact with the bottom of the hole. As a result, each joint sleeve 58a
.

The screw connections 58b and 58C become loose. Then, as shown in FIG. 2, the drifter 6 is moved back until the second joint/groove 57b emerges from the hole, that is, by the length of the seven joints/grooves.

Thereafter, the swing cylinder device 25 is operated to rotate the rod clamp means 18, the sleeve ramp means 19, and the movable member 5 so that they face the rod axis position of the drilling tube, and are moved to the positions indicated by the arrow A in FIG. As shown, the third joint sleeve 58G is clamped by the sleeve clamping means 19. Then, the drifter 6 is separated from the third joint sleeve 58c and retreated by reverse rotation of the shank and throat.

Subsequently, the cylinder device 67 for advancing and retracting the movable member 5 is operated to move the rotary shaft 62 to the mouth/throat axis position.

Then, use the rod clamping means 18 to hold the second joint 7' 57b as shown by the arrow d in FIG.
With the claw pieces 60 and 30 in a half-closed state and loosely gripped, hold the second. While moving the movable member 5 forward by the operation of the driving means 41, the third. The rotation shaft 32 is rotated in the forward direction by the operation of the driving means 46, and the male threaded portion 45 is screwed into the female threaded portion 59 of the third joint leaf 58C, as shown in FIG. 70 and FIG.

After that, as shown in Figure 1, the third joint sleeve 58c is put into the halt state (arrow a), and
The two-joint sleeve 58b is clamped by the clamping means 4 at the front end of the guide cell (arrow A), and the pressing piston 50 is
Let's put it in front! Press it against the rear end surface of the joint/throat 57b. This pressing increases the coupling force between the second joint rod 57C, the third joint sleeve 58C, and the rotating shaft 32. In this state, when the movable member 5 is moved backward while rotating the rotary shaft 32 in the opposite direction, the second
The joint rod 57b is connected to the rotating shaft 32 via the third joint sleeve 58c and rotates in the opposite direction to separate from the second joint sleeve 58b.

Then, the pressing piston 50 is moved backward, the third joint leaf 58c is placed in a clamped state as shown by arrow A in the first figure, and the movable member 5 is
By retracting the movable member 5, the movable member 5 is separated from the third joint sleeve 58C as shown in FIG.
The joint loft 57b with the third joint sleeve 58c attached is held by the rod clamp means 18 and the sleeve clamp means 19 and stored in each storage body 12.13.

The first connecting rod 57a is recovered in the same manner as the second connecting rod 57b.

In addition, when adding a splicing lot, after drilling with the drilling lot 56, the screw connection of the first joint sleeve 58a is loosened by hitting with a triphthalo, and the first joint sleeve 58a is clamped with the clamping means 4. to separate the triftalos. And the first joint lot) 57a
The first
By rotating the drifter 6 in the forward direction along the joint sleeve 58a, the first joint slot 57 is
When the joint slot 57a is screwed into the second joint sleeve 58b at the rear end of the joint sleeve 58b and continues to rotate in the normal direction, the first joint slot 57a is connected to the first joint sleeve 58a. By repeating the above steps, the second connecting rod 57b and further the third connecting loft are successively connected.

As described above, according to the present invention, the movable member is provided with a rotary shaft having a male threaded portion and a pressing piston that moves forward and backward in the shaft center portion, and the rotary shaft is screwed into the joint sleeve at the rear end of the joint. Since the compression piston presses the rear end surface of the joint rod, the coupling force between the joint rod, joint sleeve, and rotating shaft can be increased compared to other joint rod joints, and the rotation shaft can be reversed. An excellent effect can be obtained in that the spliced lots can be reliably separated by rotation.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the present invention, and FIG. 1 is a plan view of the drilling device, FIG. 2 is a side view of the same, FIG. 3 is a rear view of the first storage body, and FIG. 5 is a rear view of the movable member, FIG. 4 is a side view showing the movable member partially in section, and FIG. 7 is a rear view showing the relationship between the rod clamp means and the first storage body. FIG. 2 is a side view showing a stage in which the screw connection is loosened by the blow of the drifter; FIG. 2 is a side view showing a stage in which the connecting rod/main drifter is retracted;
Fig. 70 is a side view showing the stage where the drifter and movable member have been replaced, Fig. 1/Fig. 1 is an enlarged side view partially sectionally showing the stage where the suppression piston has been activated, and Fig. 72 is a side view showing the step where the joint lot has been separated. FIG. 73 is a side view showing a stage in which the movable member is separated. DESCRIPTION OF SYMBOLS 1...Drilling device, 2...Guide cell, 6...Drifter, 4...Clamp means, 5...Movable member, 11... Connecting rod, 18... Rod clamping means, 19...
... Sleeve ramp means, 25 ... Swing/linda device, 62 ... Rotating shaft, 67 ...
・・・・Cylinder device for advancing and retracting, 38 ・・・・・・11th
Steering means, 41... Second driving means, 45...
...Male thread part, 46...Third, driving means, 5
0... Pressing piston, 56... Drilling lot, 57a... First connecting rod, 57b...
...Second joint slot, 58a...First joint leaf, 58b...First joint leaf, 58C...Third joint leaf, 59.
...Female Thread Part Procedures Amendment Book Commissioner of the Patent Office Kazuo Wakasugi Tono 1 Case Display 1981 Patent Application No. 15i/B! No. 2 Name of the invention Joint rod removal device for drilling device 3 Relationship with the case of the person making the amendment Address of patent applicant No. 3/Shinchi, Fuchu-cho, Aki-gun, Hiroshima Prefecture Name (313)
) Toyo Kogyo Co., Ltd. Representative Yoshiki Yamazaki 4 Agent 6 Contents of the amendment (1) Detailed explanation of the invention column 7 Contents of the amendment (1) Page 2 of the specification, line 1 to page 2 In line 12, "The shaft 16 protrudes" is replaced with "The rotary cylinder 17 has a flick (not shown) provided inside it in the longitudinal direction."
The center 816 is used as a piston rod to move back and forth. ”. that's all

Claims (1)

[Claims] (1) The connecting rod used for deep hole drilling is separated from the joint sleeve at the front end while the joint sleeve is connected to the rear end, and the front end of the connecting rod is attached to the front of the guide cell that guides the drifter. A movable member movable with respect to the axial center position of the rod of the drilling tube is disposed near the drifter retracted position of the guide cell, and the movable member has a clamping means for clamping the joint sleeve of the guide cell. A rotating shaft is provided in the front wheel portion with a male threaded portion that can be screwed into the female threaded portion of the joint sleeve, and a suppressing piston that can protrude from the front end of the male threaded portion rotates on this rotating shaft using the rotating shaft as a cylinder body. The movable member is inserted concentrically with the shaft, and the movable member has a first drive means for moving the movable member, the rotary shaft has a second drive means for moving the rotary shaft back and forth, and a second drive means for rotating the rotary shaft forward and backward. 3 driving means are linked to each other, and while clamping the joint sleeve at the front end of the joint and throat, a rotating shaft is screwed into the joint 1 knob at the rear end of the joint rod, and the pressing piston is advanced to move the joint. Pressing against the rear end surface of the rod to increase the bonding force between the splice/nod, the joint sleeve at the rear end, and the rotating shaft, and then rotating the rotary shaft in the opposite direction to separate the splice/nod from the joint sleeve at the front end. A spout/throat removal device for a hole drilling device.