CN210317954U - Hydraulic control system of coring drilling machine - Google Patents
Hydraulic control system of coring drilling machine Download PDFInfo
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- CN210317954U CN210317954U CN201921391634.9U CN201921391634U CN210317954U CN 210317954 U CN210317954 U CN 210317954U CN 201921391634 U CN201921391634 U CN 201921391634U CN 210317954 U CN210317954 U CN 210317954U
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Abstract
The utility model provides a core drill hydraulic control system, including defeated oil pipe way, return oil pipe way, first control oil circuit and second control oil circuit, first control oil circuit is used for controlling to impel power piece, rotary power spare and impacter action respectively, second control oil circuit is used for controlling supplementary flexible group, presss from both sides tight flexible group, tears the borer flexible piece, main arm gyration power piece and gets core power piece action respectively, defeated oil pipe way and return oil pipe way are all connected to first control oil circuit and second control oil circuit, provide pressure oil for above-mentioned control oil circuit through defeated oil pipe way, realize through returning oil pipe way that pressure oil flows back to the oil tank in. The impactor adopts the control of adjustable impact frequency, realizes the drilling of different terranes different apertures and gets the core, and its application scope is wide, strong adaptability, and it is efficient to get the core.
Description
Technical Field
The utility model relates to a mine construction equipment technical field, concretely relates to get core rig hydraulic control system.
Background
The core drill is an important corollary device for advance forecasting and supporting construction operation in weak surrounding rock tunnel construction. The method has the main effects that in the construction of the tunnel with unfavorable geology, the tunnel construction is guaranteed through long-distance advanced geology forecast, outburst prevention, grouting water stopping, pipe sheds, anchor cables, anchor rods and other methods.
The current common coring hydraulic control system adopts two hydraulic motors and a gear reduction box to form a power head to drive a drilling tool to rotate, and the serial-parallel connection control mode of the hydraulic motors realizes the control of different drilling rotating speeds so as to adapt to the effects of different geology and different apertures; the control mode adopts series-parallel connection control of two hydraulic motors, the size of a power head is large, the assembly of the whole structure is not facilitated, the series-parallel connection control of the two motors is adopted, the total flow of a system is large when the two motors are connected in parallel, the energy loss is large, and the efficiency is low.
In view of the foregoing, there is a need for a hydraulic control system for a core drill that solves the problems of the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a coring drilling machine hydraulic control system, concrete technical scheme is as follows:
the utility model provides a core rig hydraulic control system, includes defeated oil pipe way, returns oil pipe way, first control oil circuit and second control oil circuit, first control oil circuit is used for controlling to impel power piece, rotary power spare and impacter action respectively, second control oil circuit is used for controlling supplementary flexible group, presss from both sides tight flexible group, tears borer flexible piece, main arm gyration power spare and gets core power spare action respectively, defeated oil pipe way and time oil pipe way are all connected to first control oil circuit and second control oil circuit, provide pressure oil for above-mentioned control oil circuit through defeated oil pipe way, realize through time oil pipe way that pressure oil flows back to the oil tank in.
Preferably, the oil circuit further comprises an adjusting oil circuit, one end of the adjusting oil circuit is connected with the second control oil circuit, the other end of the adjusting oil circuit is connected with the rotary power part and the impactor respectively, and the rotation speed of the rotary power part and the impact frequency of the impactor are adjusted through the adjusting oil circuit.
Preferably, in the above technical solution, the oil delivery pipeline includes a first oil delivery pipeline and a second oil delivery pipeline, the oil return pipeline includes a first oil return pipeline and a second oil return pipeline, the first control oil circuit is connected to the first oil delivery pipeline and the first oil return pipeline, and the second control oil circuit is connected to the second oil delivery pipeline and the second oil return pipeline; a first safety valve is arranged between the first oil conveying pipeline and the first oil return pipeline, and a second safety valve is arranged between the second oil conveying pipeline and the second oil return pipeline.
Preferably, in the above technical scheme, the first control oil path includes a first directional valve, a second directional valve and a third directional valve, the first directional valve is connected with the propulsion power component, the first oil pipeline and the first oil return pipeline, the propulsion power component is rotated forward or reversely by the first directional valve, the second directional valve is connected with the rotary power component, the first oil pipeline and the first oil return pipeline, the rotary power component is rotated forward or reversely by the second directional valve, the third directional valve is connected with the impactor, the first oil pipeline and the first oil return pipeline, and the impactor is moved in a reciprocating impact manner by the third directional valve;
the impactor is further connected with the oil tank to enable pressure oil in the impactor to flow back to the oil tank.
Preferably, in the above technical scheme, the second control oil path includes a fifth directional control valve, a sixth directional control valve, a seventh directional control valve, an eighth directional control valve and a ninth directional control valve, the fifth directional control valve is connected with an auxiliary telescopic member set, a second oil pipeline and a second oil return pipeline, the fifth directional control valve realizes extension or retraction of the auxiliary telescopic member set through the fifth directional control valve, the sixth directional control valve is connected with a clamping telescopic member set, a second oil pipeline and a second oil return pipeline, the sixth directional control valve realizes extension or retraction of the clamping telescopic member set through the sixth directional control valve, the seventh directional control valve is connected with a drill rod disassembling telescopic member, a second oil pipeline and a second oil return pipeline, the seventh directional control valve realizes extension or retraction of the drill rod telescopic member through the seventh directional control valve, the eighth directional control valve is connected with a main rotary power member, a second oil pipeline and a second oil return pipeline, the eighth directional control valve realizes main rotary power member or reversal through the eighth directional control valve, the ninth directional, And the second oil conveying pipeline and the second oil return pipeline realize the forward rotation or the reverse rotation of the coring power part through a ninth reversing valve.
Preferably, in the above technical solution, a balance valve is further disposed between the fifth direction valve and the auxiliary expansion piece set.
Preferably, in the above technical solution, the second control oil path further includes a fourth directional valve, the fourth directional valve is connected to the second oil delivery pipeline and the adjusting oil path, and the fourth directional valve is used to achieve connection or disconnection between the adjusting oil path and the second oil delivery pipeline.
Preferably in the above technical scheme, the adjusting oil path includes a throttle valve, a first control valve, a second control valve and a third control valve, a fourth reversing valve is connected to one end of the throttle valve, the first control valve is connected to the other end of the throttle valve, the control end of the rotary power member and the oil tank, the rotation speed of the rotary power member is adjusted through the first control valve, the second control valve and the third control valve are connected to the other end of the throttle valve, the control end of the impactor and the oil tank, and the impact frequency of the impactor is adjusted through the second control valve or the third control valve.
Preferably, in the above technical scheme, the first control oil path further includes a first pressure relief pipeline, one end of the first pressure relief pipeline is connected to the first oil pipeline, and the other end of the first pressure relief pipeline is sequentially connected to the first reversing valve, the second reversing valve, the third reversing valve and the first oil return pipeline, so that pressure oil in the first oil pipeline flows into the first oil return pipeline through the first pressure relief pipeline when the first control oil path is in an inoperative state;
the second control oil circuit still includes second release pipeline, the defeated oil pipe way of second is connected to second release pipeline one end, and the other end connects gradually fourth switching-over valve, fifth switching-over valve, sixth switching-over valve, seventh switching-over valve, eighth switching-over valve and ninth switching-over valve, realizes pressure oil in the defeated oil pipe way of second flows into the second through second release pipeline and returns oil pipe way under the out-of-operation state of second control oil circuit.
Preferably, in the above technical solution, the first control oil path and the second control oil path are both provided with a test interface, the test interface in the first control oil path is arranged on the first oil delivery line, and the test interface in the second control oil path is arranged on the second oil delivery line.
Use the technical scheme of the utility model, following beneficial effect has:
(1) the utility model discloses a core drill hydraulic control system is equipped with the regulation oil circuit, adjust oil circuit one end and connect second control oil circuit, rotatory power spare and impacter are connected respectively to the other end, realize adjusting the rotation rate of rotatory power spare and the impact frequency of impacter through adjusting the oil circuit for under the core drill can be applied to the various complicated circumstances, satisfy the needs in the different apertures of different terrane.
(2) The utility model discloses a core drill hydraulic control system be equipped with first relief valve between first defeated oil pipe way and the first time oil pipe way, defeated oil pipe way of second and second are equipped with the second relief valve between the time oil pipe way, set up the relief valve and can effectually prevent the excessive pressure of system, guarantee that the system normally works.
(3) The utility model discloses a coring drill hydraulic control system sets up first control oil circuit and is used for controlling respectively and impels power spare, rotary power spare and impacter action, sets up second control oil circuit and is used for controlling respectively that supplementary flexible group, press from both sides tight flexible group, tear down the borer flexible, main arm gyration power spare and core power spare move, and each executive device is the independent control, can conveniently adjust according to the practical applied environment of coring drill.
(4) The utility model discloses a coring drill hydraulic control system is equipped with the balanced valve between fifth switching-over valve and supplementary flexible group, can prevent supplementary flexible group overspeed reduction occurence of failure and gas pocket phenomenon, ensures to work steadily.
(5) The utility model discloses a core drill hydraulic control system first control oil circuit still is equipped with first release pipeline, second control oil circuit still is equipped with second release pipeline, sets up when the release pipeline can realize that the system is out of work, and the pressure oil of first control oil circuit flows back the oil tank through first release pipeline, and the pressure oil of second control oil circuit flows back the oil tank through second release pipeline.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic diagram of the hydraulic control system of the coring drill of the present invention;
the hydraulic control system comprises a hydraulic control system, a hydraulic control system and a hydraulic control system, wherein the hydraulic control system comprises a hydraulic control system, a hydraulic control system and a hydraulic control system, and comprises a hydraulic control system, a hydraulic control system, Main arm rotary power component, 18, coring power component, 19 and balance valve.
Detailed Description
The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Example 1:
referring to fig. 1, a core-taking drilling machine hydraulic control system, including defeated oil pipe way, return oil pipe way, first control oil circuit 5 and second control oil circuit 9, first control oil circuit 5 is used for controlling propulsion power piece 6, rotatory power piece 7 and impacter 8 and moves respectively, second control oil circuit 9 is used for controlling supplementary flexible group 14, presss from both sides tight flexible group 15, tears borer flexible piece 16 open, main arm gyration power piece 17 and core power piece 18 and moves respectively, defeated oil pipe way and return oil pipe way are all connected to first control oil circuit 5 and second control oil circuit 9, provide pressure oil for above-mentioned control oil circuit (being first control oil circuit and second control oil circuit) through defeated oil pipe way, realize through returning oil pipe way that pressure oil flows back to 1 in the oil tank.
The hydraulic control system of the core drilling machine further comprises an adjusting oil path, one end of the adjusting oil path is connected with a second control oil path 9, the other end of the adjusting oil path is connected with the rotary power part 7 and the impactor 8 respectively, and the rotating speed of the rotary power part 7 and the impact frequency of the impactor 8 are adjusted through adjusting the oil path.
The oil conveying pipeline comprises a first oil conveying pipeline and a second oil conveying pipeline, the oil return pipeline comprises a first oil return pipeline and a second oil return pipeline, the first control oil circuit 5 is connected with the first oil conveying pipeline and the first oil return pipeline, and the second control oil circuit 9 is connected with the second oil conveying pipeline and the second oil return pipeline; a first safety valve 5-1 is arranged between the first oil pipeline and the first oil return pipeline, and a second safety valve 9-1 is arranged between the second oil pipeline and the second oil return pipeline.
The first control oil way 5 comprises a first reversing valve 5-2, a second reversing valve 5-3 and a third reversing valve 5-4, the first reversing valve 5-2 is connected with a propulsion power part 6, a first oil pipeline and a first oil return pipeline, the propulsion power part 6 is driven to rotate forwards or backwards through the first reversing valve 5-2, the second reversing valve 5-3 is connected with a rotary power part 7, the first oil pipeline and the first oil return pipeline, the rotary power part 7 is driven to rotate forwards or backwards through the second reversing valve 5-3, the third reversing valve 5-4 is connected with an impactor 8, the first oil pipeline and the first oil return pipeline, and the impactor 8 is driven to do reciprocating impact motion through the third reversing valve 5-4;
referring to fig. 1, in the present embodiment, the impactor 8 is further connected to the oil tank 1 to enable pressure oil in the impactor 8 to flow back to the oil tank 1, and only one oil pipe of the third directional control valve 5-4 is connected to the impactor 8 to provide pressure oil for the impactor 8. Certainly, the connection mode is not limited to the embodiment, and the third directional valve 5-4 may be connected to the impactor 8 by using two oil pipes, wherein one oil pipe supplies oil to the impactor 8, and the other oil pipe returns the pressure oil in the impactor to the oil tank.
The second control oil path 9 comprises a fifth reversing valve 9-3, a sixth reversing valve 9-4, a seventh reversing valve 9-5, an eighth reversing valve 9-6 and a ninth reversing valve 9-7, the fifth reversing valve 9-3 is connected with an auxiliary telescopic member set 14, a second oil pipeline and a second oil return pipeline, the extension or retraction of the auxiliary telescopic member set 14 is realized through the fifth reversing valve 9-3, the sixth reversing valve 9-4 is connected with a clamping telescopic member set 15, the second oil pipeline and the second oil return pipeline, the extension or retraction of the clamping telescopic member set 15 is realized through the sixth reversing valve 9-4, the seventh reversing valve 9-5 is connected with a drill bit disassembling telescopic member 16, the second oil pipeline and the second oil return pipeline, the extension or retraction of the drill bit telescopic member 16 is realized through the seventh reversing valve 9-5, the eighth reversing valve 9-6 is connected with a main arm rotary power member 17, a second oil return pipeline and a second oil return pipeline, The second oil pipeline and the second oil return pipeline realize the forward rotation or the reverse rotation of the main arm rotation power part 17 through an eighth reversing valve 9-6, the ninth reversing valve 9-7 is connected with the coring power part 18, the second oil pipeline and the second oil return pipeline, and the forward rotation or the reverse rotation of the coring power part 18 is realized through the ninth reversing valve 9-7.
Preferably, a balance valve 19 is further provided between the fifth direction valve 9-3 and the auxiliary set of telescopic elements 14.
The second control oil path 9 further comprises a fourth reversing valve 9-2, the fourth reversing valve 9-2 is connected with the second oil conveying pipeline and the adjusting oil path, and the fourth reversing valve 9-2 is used for realizing the conduction or the stop between the adjusting oil path and the second oil conveying pipeline.
Preferably, in the embodiment, the first direction valve 5-2, the second direction valve 5-3, the third direction valve 5-4, the fourth direction valve 9-2, the fifth direction valve 9-3, the sixth direction valve 9-4, the seventh direction valve 9-5, the eighth direction valve 9-6 and the ninth direction valve 9-7 are all three-position six-way electromagnetic valves.
One-way valves are arranged between the first reversing valve 5-2, the second reversing valve 5-3 and the third reversing valve 5-4 and the first oil conveying pipeline, and one-way valves are arranged between the fourth reversing valve 9-2, the fifth reversing valve 9-3, the sixth reversing valve 9-4, the seventh reversing valve 9-5, the eighth reversing valve 9-6 and the ninth reversing valve 9-7 and the second oil conveying pipeline; the check valve is arranged, so that backflow of pressure oil can be effectively prevented when the hydraulic control system does not work.
The adjusting oil path comprises a throttle valve 10, a first control valve 11, a second control valve 12 and a third control valve 13, one end of the throttle valve 10 is connected with a fourth reversing valve 9-2, the first control valve 11 is connected with the other end of the throttle valve 10, the control end of the rotary power part 7 and the oil tank 1, the rotating speed of the rotary power part 7 is adjusted through the first control valve 11, the second control valve 12 and the third control valve 13 are connected with the other end of the throttle valve 10, the control end of the impactor 8 and the oil tank 1, and the impact frequency of the impactor 8 is adjusted through the second control valve 12 or the third control valve 13. The second control valve 12 and the third control valve 13 are respectively connected with different interfaces of the control end of the impactor, so that the impact frequency of the impactor 8 can be adjusted through the second control valve 12 or the third control valve 13.
The impactor is a purchased unit, preferably a permanently large power head YHD 4012.
The first control oil way also comprises a first pressure relief pipeline, one end of the first pressure relief pipeline is connected with the first oil pipeline, and the other end of the first pressure relief pipeline is sequentially connected with the first reversing valve 5-2, the second reversing valve 5-3, the third reversing valve 5-4 and the first oil return pipeline, so that pressure oil in the first oil pipeline flows into the first oil return pipeline through the first pressure relief pipeline under the non-working state of the first control oil way;
the second control oil path further comprises a second pressure relief pipeline, one end of the second pressure relief pipeline is connected with the second oil pipeline, and the other end of the second pressure relief pipeline is sequentially connected with a fourth reversing valve 9-2, a fifth reversing valve 9-3, a sixth reversing valve 9-4, a seventh reversing valve 9-5, an eighth reversing valve 9-6 and a ninth reversing valve 9-7, so that pressure oil in the second oil pipeline flows into the second oil return pipeline through the second pressure relief pipeline under the non-working state of the second control oil path.
Referring to fig. 1, it can be understood by those skilled in the art that when the first direction valve 5-2, the second direction valve 5-3 and the third direction valve 5-4 are not operated, the first pressure relief pipeline is in a conducting state, and when the fourth direction valve 9-2, the fifth direction valve 9-3, the sixth direction valve 9-4, the seventh direction valve 9-5, the eighth direction valve 9-6 and the ninth direction valve 9-7 are not operated, the second pressure relief pipeline is in a conducting state, that is, when the equipment is not operated, the pressure oil can flow back to the oil tank, so as to protect the hydraulic system.
The first control oil path and the second control oil path are provided with test interfaces, the test interface in the first control oil path is arranged on the first oil conveying pipeline, and the test interface in the second control oil path is arranged on the second oil conveying pipeline. Referring to fig. 1, the testing interface is point M in fig. 1, and the testing interface can be used for system fault detection and maintenance.
Get core rig hydraulic control system and still include motor 2, first hydro-cylinder 3 and second oil pump 4, motor 2 is used for driving first oil pump 3 and the work of second oil pump 4, oil tank 1 and the first defeated oil pipe way of 3 connection of first oil pump provide pressure oil for the first defeated oil pipe way, the defeated oil pipe way of oil tank 1 and second of 4 connection of second oil pump provides pressure oil for the defeated oil pipe way of second.
In this embodiment, the propelling power part 6, the rotating power part 7, the main arm turning power part 17 and the coring power part 18 are all motors, and the auxiliary telescopic part group 14, the clamping telescopic part group 15 and the drill rod disassembling telescopic part 16 are all cylinders, wherein the auxiliary telescopic part group 14 is formed by connecting a main arm pitching cylinder, a carriage swinging cylinder and a propelling compensation cylinder in parallel, the clamping telescopic part group 15 is formed by connecting three groups of clamping cylinders in parallel, and each group of clamping cylinders contains two cylinders which are arranged in parallel. The auxiliary expansion piece group and the clamping expansion piece group are determined according to the actual condition of the core drilling machine and are not limited to those described in the embodiment.
The coring drill in this embodiment includes a power head mechanism that includes a rotary power member (i.e., a rotary motor) and an impactor 8. In the core drilling machine, the propelling power part is used for controlling the power head mechanism to advance or retreat; the rotary power part is used for controlling the drill rod to rotate; the impactor 8 is used for driving the drill rod to impact and break rocks; the auxiliary telescopic piece group 14 and the main arm rotary power part 17 are used for controlling the power head mechanism to be accurately positioned; the function of the clamping expansion piece group 15 is to rapidly clamp the drill rod; the function of the drill rod dismounting expansion piece 16 is to quickly dismount a drill rod; the coring power piece is used for providing power for coring. The structural composition and the working principle of the coring drilling machine can be referred to the existing coring drilling machine, and the embodiment is not described.
The technical scheme of the embodiment is specifically as follows:
hole alignment is carried out on a power head mechanism: after the second oil pump 4 absorbs oil from the oil tank 1, the fifth reversing valve 9-3 and the eighth reversing valve 9-6 correspondingly control the auxiliary telescopic component group to act and the main arm rotary power part to rotate so as to adjust the power head mechanism to a specified drilling coring position, and the power head is accurately positioned by controlling the auxiliary telescopic component group and the main arm rotary power part, wherein the main arm rotary power part can realize that the main arm rotates 90 degrees clockwise and 90 degrees anticlockwise, so that the power head mechanism can operate without dead angles within 180 degrees, and the action range of the equipment is greatly improved. Referring to fig. 1, when YP11 is powered, the auxiliary expansion piece set extends, and when YP12 is powered, the auxiliary expansion piece set retracts; when the YP17 is electrified, the main arm rotary power part rotates clockwise, and when the YP18 is electrified, the main arm rotary power part rotates anticlockwise;
drilling: after the first oil pump 3 sucks oil from the oil tank 1, the first oil pump respectively controls the actions of the propelling power part 6, the rotating power part 7 and the impactor 8 through a first control oil path; referring to the figure, when the YP1 is powered on, the propelling power part 6 drives the power head mechanism to push out, and when the YP2 is powered on, the propelling power part 6 drives the power head mechanism to retract; when the YP3 is electrified, the rotary power part 7 drives the drill rod to rotate clockwise, and when the YP4 is electrified, the rotary motor 7 drives the drill rod to rotate anticlockwise; when YP5 is electrified, the impacter 8 acts to impact the drill rod and drive the drill rod to break rock and drill a hole;
in addition, the speed of the rotary motor and the impact frequency can be adjusted according to different apertures of different rock strata. When YP9 is electrified, the pressure oil of the second oil pump 4 passes through the fourth reversing valve 9-2 to the throttle valve 10; when the YP6 end of the first control valve 11 is electrified, the pressure oil of the throttle valve 10 controls the displacement of the rotary power part 7 to increase through the first control valve 11, the rotating speed of the rotary power part decreases, and the rotating torque increases (the relation between the displacement and the rotating speed of the motor is referred to in the prior art); when the second control valve 12 and the third control valve 13 are not powered on, the impactor cannot be controlled, the stroke of the impact piston is maximum, the impact frequency is minimum, and the frequency is low; when only the second control valve 12 is electrified, the pressure oil of the throttle valve 10 controls the impactor 8 to impact the piston stroke through the second control valve 12, the piston stroke is reduced, the impact frequency is increased, and the intermediate frequency is obtained; when only the third control valve 13 is electrified, the pressure oil of the throttle valve 10 controls the stroke of the impact piston of the impactor 8 through the third control valve 13, the piston stroke is further reduced, the impact frequency is increased, and the high frequency is achieved; preferably, the throttle valve is an adjustable throttle valve.
Coring: after drilling, the drill feeding is stopped, the original rotating speed is kept for about 10 minutes, the pressure oil of the second oil pump 4 controls the action of the coring power part through the ninth reversing valve 9-7, and the core barrel is controlled to act through the coring power part, so that normal coring is realized. When YP19 is energized, the coring power element revolves clockwise, and when YP20 is energized, the coring power element revolves counterclockwise.
Use the technical scheme of the utility model, the effect is:
the hydraulic control system of the coring drilling machine adopts a single rotary power part to control the drill rod to rotate, the whole size and weight of the power head mechanism are smaller, the construction operation of equipment is convenient, and the control of the rotating speed of the drill rod is realized through the displacement control of the rotary power part, the control mode is simple and reliable, and the practicability is high; the impactor adopts the control of adjustable impact frequency to realize the coring of drill holes with different apertures of different rock stratums, and has wide application range, strong adaptability and high coring efficiency; the control form of adding an auxiliary telescopic part and a rotary part is adopted, so that 180-degree dead-angle-free drilling and coring of the power head mechanism can be realized, and the operation range is wide; the functions of quickly assembling and disassembling the rod can be realized by clamping the telescopic piece group and disassembling the drill rod telescopic piece, and the action efficiency is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a core drill hydraulic control system, its characterized in that, includes defeated oil pipe way, returns oil pipe way, first control oil circuit (5) and second control oil circuit (9), first control oil circuit (5) are used for controlling propulsion power spare (6), rotatory power spare (7) and impacter (8) and move respectively, second control oil circuit (9) are used for controlling supplementary flexible group (14), press from both sides tight flexible group (15), tear borer flexible piece (16), main arm gyration power spare (17) and core power spare (18) and move respectively, first control oil circuit (5) and second control oil circuit (9) all connect the way and return oil pipe way, provide pressure oil for above-mentioned control oil circuit through defeated oil pipe way, realize through returning oil pipe way that pressure oil flows back to in oil tank (1).
2. The hydraulic control system of the core drill is characterized by further comprising an adjusting oil path, one end of the adjusting oil path is connected with the second control oil path (9), the other end of the adjusting oil path is respectively connected with the rotary power part (7) and the impactor (8), and the adjusting of the rotating speed of the rotary power part (7) and the impact frequency of the impactor (8) is achieved through the adjusting oil path.
3. The coring drilling machine hydraulic control system according to claim 2, wherein the oil delivery lines comprise a first oil delivery line and a second oil delivery line, the oil return lines comprise a first oil return line and a second oil return line, the first control oil line (5) is connected with the first oil delivery line and the first oil return line, and the second control oil line (9) is connected with the second oil delivery line and the second oil return line; a first safety valve (5-1) is arranged between the first oil pipeline and the first oil return pipeline, and a second safety valve (9-1) is arranged between the second oil pipeline and the second oil return pipeline.
4. The core drilling machine hydraulic control system according to claim 3, characterized in that the first control oil circuit (5) comprises a first directional control valve (5-2), a second directional control valve (5-3) and a third directional control valve (5-4), the first directional control valve (5-2) is connected with the propulsion power part (6), the first oil pipeline and the first oil return pipeline, the forward rotation or the reverse rotation of the propulsion power part (6) is realized through the first directional control valve (5-2), the second directional control valve (5-3) is connected with the rotary power part (7), the first oil pipeline and the first oil return pipeline, the forward rotation or the reverse rotation of the rotary power part (7) is realized through the second directional control valve (5-3), and the third directional control valve (5-4) is connected with the impactor (8), the first oil pipeline and the first oil return pipeline, the reciprocating impact motion of the impactor (8) is realized through a third reversing valve (5-4);
the impactor (8) is further connected with the oil tank (1) to enable pressure oil in the impactor (8) to flow back to the oil tank (1).
5. The hydraulic control system of the core drilling machine according to claim 4, characterized in that the second control oil path (9) comprises a fifth reversing valve (9-3), a sixth reversing valve (9-4), a seventh reversing valve (9-5), an eighth reversing valve (9-6) and a ninth reversing valve (9-7), the fifth reversing valve (9-3) is connected with an auxiliary expansion piece set (14), a second oil delivery pipeline and a second oil return pipeline, the auxiliary expansion piece set (14) is extended or retracted through the fifth reversing valve (9-3), the sixth reversing valve (9-4) is connected with a clamping expansion piece set (15), the second oil delivery pipeline and the second oil return pipeline, the clamping expansion piece set (15) is extended or retracted through the sixth reversing valve (9-4), and the seventh reversing valve (9-5) is connected with a detachable expansion piece (16), The second oil pipeline and the second oil return pipeline are used for detaching the drill rod telescopic part (16) to stretch out or retract through a seventh reversing valve (9-5), the eighth reversing valve (9-6) is connected with the main arm rotary power part (17), the second oil pipeline and the second oil return pipeline, the main arm rotary power part (17) rotates forwards or reversely through the eighth reversing valve (9-6), the ninth reversing valve (9-7) is connected with the coring power part (18), the second oil pipeline and the second oil return pipeline, and the coring power part (18) rotates forwards or reversely through the ninth reversing valve (9-7).
6. Coring drill hydraulic control system according to claim 5, characterized in that between the fifth directional valve (9-3) and the auxiliary set of telescopic elements (14) there is further provided a balancing valve (19).
7. The hydraulic control system of the core drilling machine according to claim 5, wherein the second control oil path (9) further comprises a fourth reversing valve (9-2), the fourth reversing valve (9-2) is connected with the second oil delivery line and the regulating oil path, and the fourth reversing valve (9-2) is used for realizing the connection or the disconnection between the regulating oil path and the second oil delivery line.
8. The core drilling machine hydraulic control system according to claim 7, characterized in that the adjusting oil path comprises a throttle valve (10), a first control valve (11), a second control valve (12) and a third control valve (13), one end of the throttle valve (10) is connected with a fourth reversing valve (9-2), the first control valve (11) is connected with the other end of the throttle valve (10), the control end of the rotary power part (7) and the oil tank (1), the rotation speed of the rotary power part (7) is adjusted through the first control valve (11), the second control valve (12) and the third control valve (13) are connected with the other end of the throttle valve (10), the control end of the impactor (8) and the oil tank (1), and the impact frequency of the impactor (8) is adjusted through the second control valve (12) or the third control valve (13).
9. The hydraulic control system of the core drilling machine according to claim 5, wherein the first control oil circuit further comprises a first pressure relief pipeline, one end of the first pressure relief pipeline is connected with the first oil pipeline, and the other end of the first pressure relief pipeline is sequentially connected with a first reversing valve (5-2), a second reversing valve (5-3), a third reversing valve (5-4) and the first oil return pipeline, so that pressure oil in the first oil pipeline flows into the first oil return pipeline through the first pressure relief pipeline in the non-working state of the first control oil circuit;
the second control oil way further comprises a second pressure relief pipeline, one end of the second pressure relief pipeline is connected with the second oil pipeline, the other end of the second pressure relief pipeline is sequentially connected with a fourth reversing valve (9-2), a fifth reversing valve (9-3), a sixth reversing valve (9-4), a seventh reversing valve (9-5), an eighth reversing valve (9-6) and a ninth reversing valve (9-7), and pressure oil in the second oil pipeline flows into the second oil return pipeline through the second pressure relief pipeline under the non-working state of the second control oil way.
10. The coring drill hydraulic control system of claim 9, wherein the first and second control oil circuits are each provided with a test interface, the test interface of the first control oil circuit being provided on a first oil line, and the test interface of the second control oil circuit being provided on a second oil line.
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| CN201921391634.9U CN210317954U (en) | 2019-08-26 | 2019-08-26 | Hydraulic control system of coring drilling machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118728789A (en) * | 2024-09-02 | 2024-10-01 | 四川蓝海智能装备制造有限公司 | Electro-hydraulic control system for rock drilling equipment and double rock drill anchor trolley |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118728789A (en) * | 2024-09-02 | 2024-10-01 | 四川蓝海智能装备制造有限公司 | Electro-hydraulic control system for rock drilling equipment and double rock drill anchor trolley |
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