CN216277685U - Crawler-type full-hydraulic tunnel drilling machine for coal mine - Google Patents
Crawler-type full-hydraulic tunnel drilling machine for coal mine Download PDFInfo
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- CN216277685U CN216277685U CN202123044909.1U CN202123044909U CN216277685U CN 216277685 U CN216277685 U CN 216277685U CN 202123044909 U CN202123044909 U CN 202123044909U CN 216277685 U CN216277685 U CN 216277685U
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Abstract
The utility model provides a crawler-type full-hydraulic tunnel drilling machine for a coal mine, which comprises a chassis assembly, an oil tank assembly, a console, a stand column assembly, a host machine assembly and a power assembly, wherein the chassis assembly is arranged on the console; the front end of the chassis component is provided with an upright post component, the rear end of the chassis component is provided with a control console, the oil tank component is arranged between the control console and the upright post component, the upright post component can horizontally rotate relative to the chassis component, the upright post component comprises a first upright post, a second upright post, a lifting oil cylinder, a bottom plate and a rotating device, the first upright post and the second upright post are respectively arranged at two ends of the bottom plate, one end of the rotating device is connected with the first upright post in a sliding manner, the other end of the rotating device is connected with the second upright post in a sliding manner, the rotating device is provided with a host machine component, two ends of the rotating device are respectively connected with the lifting oil cylinder, and the rotating device drives the host machine component to rotate along the vertical direction; the utility model has the advantages of convenient operation, more flexible punching, more stable punching and higher precision, and is convenient for workers to perform punching operation.
Description
Technical Field
The utility model belongs to the technical field of mine drilling machines, and particularly relates to a crawler-type full-hydraulic tunnel drilling machine for a coal mine.
Background
The drilling machine plays an important role in the fields of mines, oil wells, geological exploration drilling and the like as mechanical equipment for drilling holes, the conventional mine drilling machine works under a complex terrain environment, the drilling position and the place need to be continuously changed, the position needs to be frequently changed, the drilling machine needs to be continuously fixed and calibrated, the drilling efficiency of the mine drilling machine is greatly reduced, and in the drilling process, the drilling bit is greatly stressed, the drilling machine is affected by deviation, further, the drilling error can be large, the drilling precision is not high, the drilling bit can be damaged, and the construction progress is influenced.
SUMMERY OF THE UTILITY MODEL
The object of the present invention is to solve at least one of the technical drawbacks.
Therefore, one purpose of the utility model is to provide a crawler-type full-hydraulic tunnel drilling machine for coal mines, which comprises a chassis assembly, an oil tank assembly, a control console, a stand column assembly, a main machine assembly and a power assembly; the front end of the chassis assembly is provided with an upright post assembly, the rear end of the chassis assembly is provided with an operating console, the oil tank assembly is arranged between the operating console and the upright post assembly, the upright post assembly can horizontally rotate relative to the chassis assembly, the upright post assembly comprises a first upright post, a second upright post, a lifting oil cylinder, a bottom plate and a rotating device, the first upright post and the second upright post are respectively arranged at two ends of the bottom plate, one end of the rotating device is connected with the first upright post in a sliding manner, the other end of the rotating device is connected with the second upright post in a sliding manner, the rotating device is provided with a host assembly, the number of the lifting oil cylinders is two, two ends of the rotating device are respectively connected with the lifting oil cylinder, and the rotating device drives the host assembly to rotate in the vertical direction; the main machine component comprises a feeding device, a gyrator, a hydraulic chuck and a clamp holder, wherein the gyrator is arranged on the feeding device and can move relative to the feeding device, the hydraulic chuck is connected with the gyrator, and the clamp holder is arranged at one end of the feeding device close to the hydraulic chuck.
Preferably, the slewing device comprises a slewing support shaft, slewing bearings and a hydraulic motor, the slewing bearings are arranged at two ends of the slewing support shaft respectively, the output end of the hydraulic motor is connected with the slewing bearings, the stand column assembly further comprises a positioning block and two locking sleeves, the positioning block is arranged on the bottom plate, the lifting oil cylinder is connected with the positioning block, the two locking sleeves are sleeved on the first stand column and the second stand column respectively, two ends of the slewing device are connected with the locking sleeves respectively, and the output end of the lifting oil cylinder is connected with the locking sleeves.
In any of the above schemes, the hydraulic control system preferably further comprises a cycloid hydraulic motor and a slewing reducer, wherein an output end of the cycloid hydraulic motor is connected with an input end of the slewing reducer, and the slewing reducer is connected with the bottom plate to drive the bottom plate to rotate horizontally.
In any of the above schemes, the drilling machine further comprises a lower jacking oil cylinder, and the lower jacking oil cylinder is arranged at the bottom of the chassis assembly to realize the stability of the drilling machine.
In any of the above schemes, preferably, the power assembly includes a duplex pump and a three-phase asynchronous motor, an output end of the three-phase asynchronous motor is connected with an input end of the duplex pump, the three-phase asynchronous motor drives the duplex pump, and the duplex pump provides hydraulic power by circulating hydraulic oil.
In any of the above schemes, preferably, the oil tank assembly includes a filter, an oil tank and an oil tank cover plate, the filter is connected with an oil outlet of the oil tank, the filter is connected with an oil inlet of the oil tank, and the oil tank cover plate covers the top of the oil tank.
In any of the above schemes, preferably, the console comprises a hydraulic pressure gauge, a liquid inlet pipe assembly, a liquid outlet pipe assembly and a hydraulic valve assembly, the liquid inlet pipe assembly is connected with the input end of the hydraulic valve assembly, and the output end of the hydraulic valve assembly is connected with the liquid outlet pipe assembly.
In any of the above schemes, preferably, the liquid level controller further comprises a left walking motor and a right walking motor, and an input end of the left walking motor and an input end of the right walking motor are respectively connected with the liquid outlet pipe assembly.
Compared with the prior art, the utility model has the following advantages:
1. the main machine component of the crawler-type full-hydraulic tunnel drilling machine for the coal mine can rotate in the vertical direction through the slewing device, can move up and down in the vertical direction through the lifting oil cylinder, and can also rotate in the horizontal direction through the upright post component to control the change of the direction of the main machine, the drilling adjustment of the drill bit can be carried out according to the field condition, and the crawler-type full-hydraulic tunnel drilling machine is provided with the first upright post and the second upright post, so that the drilling is more stable and reliable, and the drilling error is smaller.
2. The crawler-type full-hydraulic tunnel drilling machine for the coal mine is simple in structure, convenient to operate, more flexible in drilling, convenient for workers to perform drilling operation and high in drilling efficiency
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a crawler-type full-hydraulic tunnel drilling machine for coal mines according to a preferred embodiment of the utility model;
wherein the reference numbers: 1-a chassis assembly; 2-a fuel tank assembly; 3-a console; 4-a first upright; 5-a second upright post; 6-lifting oil cylinder; 7-a bottom plate; 8-supporting the shaft; 9-a slew bearing; 10-a hydraulic motor; 11-positioning blocks; 12-a locking sleeve; 13-a gyrator; 14-a hydraulic chuck; 15-a gripper; 16-a pallet; 17-organism.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, a crawler-type full-hydraulic tunnel drilling machine for coal mines according to an embodiment of the utility model comprises a chassis assembly 1, an oil tank assembly 2, a console 3, a stand column assembly, a main machine assembly and a power assembly; the front end of the chassis component 1 is provided with an upright post component, the rear end of the chassis component 1 is provided with a control console 3, the oil tank component 2 is arranged between the control console 3 and the upright post component, the upright post component can horizontally rotate relative to the chassis component 1, the upright post component comprises a first upright post 4, a second upright post 5, lifting oil cylinders 6, a bottom plate 7 and a slewing device, the first upright post 4 and the second upright post 5 are respectively arranged at two ends of the bottom plate 7, one end of the slewing device is slidably connected with the first upright post 4, the other end of the slewing device is slidably connected with the second upright post 5, the slewing device is provided with a host machine component, the lifting oil cylinders 6 are two, two ends of the slewing device are respectively connected with one lifting oil cylinder 6, and the slewing device drives the host machine component to rotate along the vertical direction; the main machine assembly comprises a feeding device, a gyrator 13, a hydraulic chuck 14 and a clamp 15, wherein the gyrator 13 is arranged on the feeding device and can move relative to the feeding device, the hydraulic chuck 14 is connected with the gyrator 13, and the clamp 15 is arranged at one end of the feeding device close to the hydraulic chuck 14.
Specifically, the feeding device comprises a supporting plate 16, a machine body 17 and a translation oil cylinder, wherein the translation oil cylinder is arranged at the bottom of the machine body 17, the output end of the translation oil cylinder is connected with the supporting plate 16, the supporting plate 16 is provided with a gyrator 13, the machine body 17 is provided with a guide rail, the supporting plate 16 is provided with a guide groove matched with the guide rail, and the translation oil cylinder can drive the supporting plate 16 to slide on the guide rail; the overall dimension of the whole machine in a transportation state is reduced, and the feeding device can also be translated forwards and backwards in a drilling state so as to be convenient for the stability of the feeding device; the gyrator 13 and the planker adopt a connection mode of a vertical shaft drilling machine box opening type structure; one side of the drill bit penetrates the dragging plate and the gyrator 13 together through a pin shaft, the other side of the drill bit presses the gyrator 13 on the dragging plate through a hinged bolt, and when the large-diameter drilling tool is started, the bolt is loosened, so that the gyrator 13 can be moved to one side of the pin shaft to leave an orifice; the machine body 17 is fixed on the cross beams of the upright post assembly and the supporting rod through locking slips.
Specifically, the gyrator 13 is composed of an inclined shaft type variable plunger motor, a gear reducer and a rubber cylinder type hydraulic chuck 14; the inclined shaft type variable plunger motor is decelerated by a two-stage gear to drive the main shaft and the hydraulic chuck 14 to realize the rotation of the drilling tool; the rotating speed can be adjusted by adjusting the displacement of the shaft type variable plunger motor; the main shaft of the gyrator 13 is of a through hole type structure, the diameter of the through hole is 75mm, conventional drill rods with the diameter of 50mm and 42mm can be used for replacing slip sets with different diameters, the length of the drill rods is not limited by the structural size of the drilling machine, the gyrator 13 is installed on a carriage, the drilling machine can be fed or pulled up and down by means of reciprocating motion of a guide rail on the machine body 17, and the drilling machine can be pulled up and down stably. The gyrator 13 has a lateral opening and closing device; the hydraulic chuck 14 adopts a normally open structure of hydraulic clamping and spring loosening, has the characteristics of automatic centering, safety, reliability, large clamping force and the like, can ensure normal drilling, can also be used for lifting drilling tools, strongly pulling and the like, and compresses the spring of the slip group into the rubber cylinder by using a special tool when the chuck is matched with drill rods with different specifications and slips are replaced.
The clamp 15 is fixed at the front end of the feeding device body 17 and used for clamping a drilling tool in a hole and can be matched with the gyrator 13 to realize mechanical screwing and unscrewing of a drill rod; the clamp 15 adopts a normally closed structure that a disc spring is used for clamping and oil pressure is released, so that the drill running accident caused by sudden power failure when the drilling tool is pulled out and pulled down can be prevented; the clamp 15 is fixed at the front end of the feeding device body 17 and is used for clamping a drilling tool in a hole and can be matched with the gyrator 13 to realize mechanical screwing and unscrewing of the drilling rod; the slip of the holder 15 is axially fixed with the slip seat by a left pin shaft and a right pin shaft, and is fixed in the circumferential direction by a flat key on the slip seat; the slips can be taken out only by pulling out the left pin shaft and the right pin shaft.
The main machine assembly can rotate in the vertical direction through the rotating device, can move up and down in the vertical direction through the lifting oil cylinder 6, can rotate in the horizontal direction through the upright post assembly, can perform punching adjustment according to the field condition, saves more energy, and is provided with the first upright post 4 and the second upright post 5, so that punching is more stable and reliable, and punching errors are small.
The chassis component 1 is formed by assembling, welding and bolting steel plates and has the advantages of good rigidity, high strength, easy disassembly and the like; the chassis is a connecting part of the upright post assembly, the oil tank assembly 2 and the control console 3 and is also a stressed part of the drilling machine.
Furthermore, the mine shaft further comprises two upright post jacking oil cylinders which are respectively arranged at the bottoms of the first upright post 4 and the second upright post 5, and the upright post jacking oil cylinders can control the lifting of the first upright post 4 and the second upright post 5 to jack the first upright post 4 and the second upright post 5 tightly against the top of the mine hole or the top of the top plate.
Further, slewer includes slewing bearing 8, slewing bearing 9 and hydraulic motor 10, slewing bearing 9 is two, slewing bearing 8 both ends are equipped with a slewing bearing 9 respectively, hydraulic motor 10 output is connected with slewing bearing 9, the stand subassembly still includes locating piece 11 and lock sleeve 12, locating piece 11 is established on bottom plate 7, lift cylinder 6 is connected with locating piece 11, lock sleeve 12 is two, the cover has lock sleeve 12 respectively on first stand 4 and the second stand 5, the slewer both ends are connected with lock sleeve 12 respectively, lift cylinder 6's output and lock sleeve 12 are connected. The main machine assembly is supported by the rotary support shaft 8, the locking sleeve 12 is a device for fixedly connecting the rotary device and the lifting oil cylinder 6 with the first upright post 4 and the second upright post 5, the upright post assembly adopts a double-upright-post structure, the first upright post 4 and the second upright post 5 are arranged in parallel, and the periphery of the upright post is fixed on the bottom plate 7 by using high-strength inner hexagonal cylindrical head bolts, so that the loading force and the stability of the upright post are greatly improved; two groups of locking sleeves 12 are used for being connected with a slewing device, a slewing bearing 9 is connected with a slewing motor, and through the matching of the two lifting cylinders 6 and the slewing motor, the host machine assembly can do actions such as up-down movement, rotation and the like between the first upright post 4 and the second upright post 5. The lifting oil cylinder 6 can realize the adjustment of different working heights of the main machine in the working process, and the jacking of the drilling machine on the top of the roadway is tight, so that the flexibility and the stability of the drilling machine during operation are improved.
The device further comprises a cycloid hydraulic motor and a rotary speed reducer, wherein the output end of the cycloid hydraulic motor is connected with the input end of the rotary speed reducer, and the rotary speed reducer is connected with the bottom plate so as to drive the bottom plate 7 to horizontally rotate; the rotary speed reducer can enable the stand column assembly to rotate in the horizontal direction, and the punching direction of the host assembly can be adjusted conveniently.
Specifically, still include down tight hydro-cylinder in top, establish in order to realize stabilizing the rig down in the bottom of chassis subassembly 1 tight hydro-cylinder in top.
The power assembly comprises a duplex pump and a three-phase asynchronous motor, wherein the output end of the three-phase asynchronous motor is connected with the input end of the duplex pump, the three-phase asynchronous motor drives the duplex pump, the duplex pump provides hydraulic power through circulating hydraulic oil, and the duplex pump provides hydraulic power for each part through circulating hydraulic oil; the oil tank is connected with the dual pump through the hydraulic oil pipe, and the dual pump lifts hydraulic oil and circulates the hydraulic oil to provide hydraulic power for each part.
Specifically, the three-phase asynchronous motor is an explosion-proof three-phase asynchronous motor; the duplex pump is specifically a duplex plunger oil pump
Specifically, the explosion-proof motor, the elastic coupling, the duplex plunger oil pump and other components form a motor pump set, and a main oil pump and an auxiliary oil pump of the duplex plunger oil pump are connected in series; the motor drives the main pump and the auxiliary pump to work through the pump seat and the elastic coupling, the pump sucks oil from the oil tank and discharges high-pressure oil, and each actuating mechanism of the drilling machine works as required under the control and the regulation of the control console 3.
Optionally, the oil tank assembly 2 comprises a filter, an oil tank and an oil tank cover plate, the filter is connected with an oil outlet of the oil tank, the filter is connected with an oil inlet of the oil tank, and the oil tank cover plate covers the top of the oil tank. The oil tank is an important component of the hydraulic system, and plays roles of heat dissipation, separation of bubbles in oil, impurity precipitation and the like besides oil storage in the hydraulic system; the oil tank is also provided with an air filter, an oil inlet and return filter and the like.
Furthermore, the console comprises a hydraulic pressure gauge, a liquid inlet pipe assembly, a liquid outlet pipe assembly and a hydraulic valve assembly, the liquid inlet pipe assembly is connected with the input end of the hydraulic valve assembly, and the output end of the hydraulic valve assembly is connected with the liquid outlet pipe assembly.
The control console 3 is a control center of the drilling machine, the control console 3 is arranged on the left side behind the crawler body, and is far away from an orifice during operation, so that the safety of an operator is guaranteed, and the orifice and the drilling condition are conveniently observed; mainly controls the stability of the vehicle body and the adjustment of the drill hole inclination angle; nine operation handles including crawler traveling, power head rotation, feeding and pulling, tripping function conversion, drilling function conversion, clamping and rotating linkage function conversion and clamping function conversion are arranged on the control console 3, three adjusting hand wheels including an overflow valve pressure adjusting hand wheel, a pressure reducing valve pressure adjusting hand wheel and a pulling throttling hand wheel are used for pressure regulating, and a hydraulic pressure gauge comprises five pressure gauges including an oil return pressure gauge, a system pressure gauge, a feeding pressure gauge, a pulling pressure gauge and a crawler traveling pressure gauge; the control of walking, host lifting, angle adjustment, upright post jacking, host feeding and host rotation can be realized, and the operations of transferring the drilling machine and drilling holes with different heights and angles are completed.
The drilling machine comprises a drilling machine body, a drilling machine body and a drilling machine body, wherein the drilling machine body is provided with a drilling machine head and a drilling machine head; the combined sealing crawler chain made of high-strength alloy steel is adopted by the crawler, so that the normal work of the drilling machine in severe environment is ensured; the thrust wheels bear not only the weight of the machine directly but also the impact from the top plate.
The liquid level meter is characterized by further comprising a left walking motor and a right walking motor, wherein the input end of the left walking motor is connected with the input end of the right walking motor, the input end of the right walking motor is connected with the liquid outlet pipe assembly, the number of the crawler assemblies is two, the left walking motor is connected with one crawler assembly, and the right walking motor is connected with the other crawler assembly.
The working principle of the embodiment of the utility model is that the left walking motor and the right walking motor are started and controlled to move forwards and backwards through the control console, after the drilling machine reaches a specified place, the first upright post and the second upright post are operated to prop against the oil cylinder to enable the upright post to prop against the top plate, the rotating device and the lifting oil cylinder are controlled to adjust the host machine assembly to a proper angle and position, and after the position is adjusted, the host machine assembly is controlled to carry out punching operation.
The embodiment of the utility model has the advantages of convenient operation, convenient and quick adjustment of the punching position of the host, stable punching, high punching precision and safe use.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a full-hydraulic gallery rig of crawler-type for coal mine which characterized in that: the device comprises a chassis assembly, an oil tank assembly, a control console, a stand column assembly, a host machine assembly and a power assembly; the front end of the chassis assembly is provided with the upright post assembly, the rear end of the chassis assembly is provided with a console, the oil tank assembly is arranged between the console and the upright post assembly, the upright post assembly can horizontally rotate relative to the chassis assembly, the upright post assembly comprises a first upright post, a second upright post, a lifting oil cylinder, a bottom plate and a slewing device, the first upright post and the second upright post are respectively arranged at two ends of the bottom plate, one end of the slewing device is slidably connected with the first upright post, the other end of the slewing device is slidably connected with the second upright post, the slewing device is provided with the host assembly, the lifting oil cylinders are two, two ends of the slewing device are respectively connected with the lifting oil cylinder, and the slewing device drives the host assembly to rotate along the vertical direction; the host computer subassembly includes feed arrangement, gyrator, hydraulic chuck and holder, the gyrator is established on the feed arrangement, and can for the feed arrangement removes, the hydraulic chuck with the gyrator is connected, the holder is established feed arrangement is close to the one end of hydraulic chuck.
2. The crawler-type full-hydraulic tunnel drilling machine for the coal mine as claimed in claim 1, wherein: the slewing device comprises a slewing support shaft, slewing bearings and a hydraulic motor, wherein the slewing bearings are arranged at two ends of the slewing support shaft respectively, the output end of the hydraulic motor is connected with the slewing bearings, the stand column assembly further comprises a positioning block and a locking sleeve, the positioning block is arranged on the bottom plate, the lifting oil cylinder is connected with the positioning block, the locking sleeves are two, the locking sleeve is sleeved on the first stand column and the second stand column respectively, two ends of the slewing device are connected with the locking sleeve respectively, and the output end of the lifting oil cylinder is connected with the locking sleeve.
3. The crawler-type full-hydraulic tunnel drilling machine for the coal mine as claimed in claim 1, wherein: the hydraulic swing mechanism is characterized by further comprising a cycloid hydraulic motor and a rotary speed reducer, wherein the output end of the cycloid hydraulic motor is connected with the input end of the rotary speed reducer, and the rotary speed reducer is connected with the bottom plate to drive the bottom plate to rotate horizontally.
4. The crawler-type full-hydraulic tunnel drilling machine for the coal mine as claimed in claim 3, wherein: the drilling machine further comprises a lower jacking oil cylinder, and the lower jacking oil cylinder is arranged at the bottom of the chassis assembly to stabilize the drilling machine.
5. The crawler-type full-hydraulic tunnel drilling machine for the coal mine as claimed in claim 1, wherein: the power assembly comprises a duplex pump and a three-phase asynchronous motor, the output end of the three-phase asynchronous motor is connected with the input end of the duplex pump, the three-phase asynchronous motor drives the duplex pump, and the duplex pump provides hydraulic power through circulating hydraulic oil.
6. The crawler-type full-hydraulic tunnel drilling machine for the coal mine as claimed in claim 1, wherein: the oil tank subassembly includes filter, oil tank and oil tank apron, the filter with the oil tank oil-out is connected, the filter with the oil tank oil inlet is connected, the oil tank apron lid is in the oil tank top.
7. The crawler-type full-hydraulic tunnel drilling machine for the coal mine as claimed in claim 1, wherein: the control console comprises a hydraulic pressure gauge, a liquid inlet pipe assembly, a liquid outlet pipe assembly and a hydraulic valve assembly, wherein the liquid inlet pipe assembly is connected with the input end of the hydraulic valve assembly, and the output end of the hydraulic valve assembly is connected with the liquid outlet pipe assembly.
8. The crawler-type full-hydraulic tunnel drilling machine for the coal mine as claimed in claim 7, wherein: the liquid outlet pipe assembly is characterized by further comprising a left walking motor and a right walking motor, wherein the input end of the left walking motor and the input end of the right walking motor are respectively connected with the liquid outlet pipe assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123044909.1U CN216277685U (en) | 2021-12-06 | 2021-12-06 | Crawler-type full-hydraulic tunnel drilling machine for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123044909.1U CN216277685U (en) | 2021-12-06 | 2021-12-06 | Crawler-type full-hydraulic tunnel drilling machine for coal mine |
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| CN216277685U true CN216277685U (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123044909.1U Active CN216277685U (en) | 2021-12-06 | 2021-12-06 | Crawler-type full-hydraulic tunnel drilling machine for coal mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115653493A (en) * | 2022-10-24 | 2023-01-31 | 江苏中煤矿山设备有限公司 | Anti-falling type double-upright-column harmonic lifting drilling machine |
-
2021
- 2021-12-06 CN CN202123044909.1U patent/CN216277685U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115653493A (en) * | 2022-10-24 | 2023-01-31 | 江苏中煤矿山设备有限公司 | Anti-falling type double-upright-column harmonic lifting drilling machine |
| CN115653493B (en) * | 2022-10-24 | 2023-11-28 | 江苏中煤矿山设备有限公司 | Anti-falling double-upright harmonic lifting drilling machine |
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