CN112112580A - Hydraulic cave-making mechanism without withdrawing drill rod for underground drilling of coal mine - Google Patents
Hydraulic cave-making mechanism without withdrawing drill rod for underground drilling of coal mine Download PDFInfo
- Publication number
- CN112112580A CN112112580A CN202011089975.8A CN202011089975A CN112112580A CN 112112580 A CN112112580 A CN 112112580A CN 202011089975 A CN202011089975 A CN 202011089975A CN 112112580 A CN112112580 A CN 112112580A
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- Prior art keywords
- auxiliary
- block
- column
- triggering
- drilling
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- 238000005553 drilling Methods 0.000 title claims abstract description 48
- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 239000003245 coal Substances 0.000 title claims abstract description 18
- 230000003139 buffering effect Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 10
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
- E21B17/076—Telescoping joints for varying drill string lengths; Shock absorbers between rod or pipe and drill bit
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The hydraulic hole making mechanism for the underground coal mine drilling without withdrawing the drill rod comprises a drilling tool body and a drill bit, wherein an installation head is fixedly arranged at the bottom of the drilling tool body, a protection block is arranged at the top of the drill bit, a dismounting column is arranged at the upper part of the protection block, and the dismounting column penetrates through the installation head. According to the invention, the fixed motor is started, the first bevel gear rotates to drive the second bevel gear to rotate, the fixed rotating shaft rotates, the fixed rotating shaft is provided with a first thread and a second thread, the first thread and the second thread are in threaded connection with screw blocks, the two screw blocks move in opposite directions to drive the fixed clamping block to pass through the dismounting opening to be clamped with the clamping groove on the dismounting column, so that the dismounting column is fixed, and then the drilling tool body and the drilling bit are mounted and dismounted.
Description
Technical Field
The invention relates to the technical field of underground coal mines, in particular to a hydraulic hole making mechanism for underground coal mine drilling without a withdrawal drill rod.
Background
Drilling tools refer to tools used in connection with drilling, boring, etc. Mainly comprises a drilling (well drilling) drilling tool, a metallurgical furnace drilling tool and the like; the general term for the entire drill string and its joints used in drilling operations (excluding casing for hole protection). The drilling tool consists of an active drill rod, a core tube, a reamer at the bottom end and a drill bit, and a settling tube or a drill collar is additionally connected to the upper part of the core tube when necessary. The drilling tool has the functions of transmitting bit pressure and rotary torque to the drill bit during the process of drilling rock stratum, conveying drilling flushing fluid to the bottom of a hole and collecting a rock core.
The drilling tool is needed to be used for processing hydraulic hole making, the drill bit of the existing drilling tool is fixed with the drilling tool body, the drill bit is difficult to replace, and the using effect of the drilling tool is influenced.
Disclosure of Invention
The invention aims to provide a hydraulic hole making mechanism for underground coal mine drilling without withdrawing a drill rod, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a hydraulic hole making mechanism for underground coal mine drilling without withdrawing a drill rod comprises a drilling tool body and a drill bit, wherein an installation head is fixedly arranged at the bottom of the drilling tool body, a protection block is arranged at the top of the drill bit, a dismounting column is arranged at the upper part of the protection block and penetrates through the installation head, a buffer seat is arranged on the top wall in a cavity of the installation head, a buffer inclined rod is hinged to the bottom of the buffer seat, and two buffer inclined rods are hinged to a buffer plate together;
the bottom of the buffer plate is provided with a dismounting block, the bottom of the dismounting block is provided with a dismounting opening, the dismounting column is arranged in the dismounting opening in a dismounting way, and the inner bottom wall of the dismounting opening is provided with a trigger mechanism; a fixed motor is arranged in a cavity of the disassembling block;
the output shaft of the fixed motor is connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is connected with a fixed rotating shaft, a first thread and a second thread are arranged on the fixed rotating shaft, the first thread and the second thread are in threaded connection with a screw block, a fixed clamping block is arranged at the bottom of the screw block, and the fixed clamping block penetrates through the dismounting opening to be clamped and fixed with a clamping groove on the dismounting column; the screw block is hinged with the inner top wall of the cavity of the disassembling block through a hinge rod; the mounting head is provided with auxiliary mechanisms on two sides of the dismounting column.
Preferably, the mounting head is provided with a cavity, the mounting head is provided with a buffer board, the buffer board is arranged on the cavity of the mounting head in a sliding mode, and the buffer board is connected with the top wall of the cavity of the mounting head through a buffer spring.
Preferably, the buffer diagonal rods are connected through a return spring.
Preferably, the trigger mechanism comprises a trigger sleeve box, a trigger block is arranged in the trigger sleeve box in a sliding mode, a lower contact piece is arranged at the top of the trigger block, an upper contact piece is arranged on the inner top wall of the trigger sleeve box, a trigger column is arranged at the bottom of the trigger block, and the trigger column penetrates through the trigger sleeve box and is matched with the disassembly column.
Preferably, the inner bottom wall of the trigger block and the trigger sleeve are connected through a trigger spring.
Preferably, the lower contact piece and the upper contact piece are electrically connected and contacted to control the fixed motor.
Preferably, the auxiliary mechanism includes supplementary cover box, and the roof symmetry is equipped with supplementary upstand in the supplementary cover box, and supplementary upstand goes up the cover and establish the slip and be equipped with the accessory plate, and the accessory plate is connected through erecting auxiliary spring with supplementary cover box inner wall, and the accessory plate bottom is equipped with the principal post, still be equipped with the board in the supplementary cover box, the principal post passes and is connected with the fixed mounting piece with the board, is equipped with the auxiliary tank on the fixed mounting piece, and the auxiliary tank slides and is equipped with supplementary piece, and supplementary piece articulates there is the auxiliary connecting rod, and two supplementary connecting rods articulate jointly has the movable plate, and the movable plate bottom is equipped with the removal post, and the removal post passes supplementary cover box and is connected.
Preferably, two auxiliary blocks are connected and arranged through a connecting spring.
Preferably, the inner wall of the auxiliary sleeve box is provided with a positioning movable groove, and the moving plate is arranged in the positioning movable groove in a sliding manner.
Preferably, a vertical auxiliary spring is arranged between the fixed mounting block and the same plate.
Compared with the prior art, the invention has the beneficial effects that
(1) According to the invention, the fixed motor is started, the first bevel gear rotates to drive the second bevel gear to rotate, the fixed rotating shaft rotates, the fixed rotating shaft is provided with a first thread and a second thread, the first thread and the second thread are in threaded connection with screw blocks, the two screw blocks move in opposite directions to drive the fixed clamping block to pass through the dismounting opening to be clamped with the clamping groove on the dismounting column, so that the dismounting column is fixed, and then the drilling tool body and the drilling bit are mounted and dismounted.
(2) The movable contact block moves upwards to drive the movable column to move upwards, the connecting rod drives the auxiliary block to slide in the auxiliary groove, and the connecting spring is compressed to realize the buffering effect; meanwhile, the fixed mounting block is driven to move upwards, the main column moves upwards, the vertical auxiliary spring is compressed, the auxiliary plate slides on the auxiliary vertical column, and the vertical auxiliary spring is compressed, so that a good compression buffering effect is achieved, and a protection effect is achieved on the drill bit.
(3) The drill bit during operation drives the protection piece rebound then, and then drives protection piece and complementary unit contact cooperation setting, dismantles the post rebound simultaneously, drives and dismantles piece rebound, and then the buffer board rebound, through the buffer board setting of sliding on the post that slides, the buffer spring compression, and through the cooperation pulling reset spring of buffering down tube, ascending cushion effect can be realized to the drill bit simultaneously, further plays the effect of buffering protection drill bit.
(4) The post will be dismantled and the installation head is passed and the dismantlement mouth is inserted, then drives and triggers the post and remove, and then triggers the piece rebound, drives lower contact, last contact to realize the fixed motor of control, start fixed motor, play the effect of buffering through triggering the spring, lower contact, last contact buffering nature contact, thereby improved the protection effect of lower contact, last contact.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a buffer structure of the buffer plate according to the present invention;
FIG. 3 is a schematic view of the structure of the present invention for fixing the detachable column;
FIG. 4 is a schematic structural view of the trigger mechanism of the present invention;
FIG. 5 is a schematic structural view of the auxiliary mechanism of the present invention;
FIG. 6 is an enlarged schematic view of the structure of FIG. 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, in the embodiment of the invention, a hydraulic cave-making mechanism for underground coal mine drilling without a drill rod withdrawal comprises a drilling tool body 1 and a drill bit 3, wherein an installation head 2 is fixedly arranged at the bottom of the drilling tool body 1, a protection block 4 is arranged at the top of the drill bit 3, a disassembly column 5 is arranged at the upper part of the protection block 4, the disassembly column 5 penetrates through the installation head 2, a buffer seat 6 is arranged on the top wall in a cavity of the installation head 2, a buffer inclined rod 7 is hinged at the bottom of the buffer seat 6, and a buffer plate 8 is hinged to the two buffer inclined rods 7 together;
the bottom of the buffer plate 8 is provided with a dismounting block 9, the bottom of the dismounting block 9 is provided with a dismounting opening 10, the dismounting column 5 is detachably arranged in the dismounting opening 10, and the bottom wall in the dismounting opening 10 is provided with a trigger mechanism 14; a fixed motor 15 is arranged in a cavity of the disassembling block 9;
an output shaft of the fixed motor 15 is connected with a first bevel gear 16, the first bevel gear 16 is engaged with a second bevel gear 17, the second bevel gear 17 is connected with a fixed rotating shaft 18, the fixed rotating shaft 18 is provided with a first thread 19 and a second thread 20, the first thread 19 and the second thread 20 are in threaded connection with a screw block 23, the threads of the first thread 19 and the second thread 20 are opposite, the bottom of the screw block 23 is provided with a fixed clamping block 21, and the fixed clamping block 21 penetrates through the dismounting opening 10 to be clamped and fixed with a clamping groove 22 on the dismounting column 5; the screw block 23 is hinged with the top wall of the cavity of the dismounting block 9 through a hinge rod 24; the mounting head 2 is provided with auxiliary mechanisms 25 on both sides of the dismounting post 5.
Starting a fixed motor 15, rotating a first bevel gear 16 to drive a second bevel gear 17 to rotate, rotating a fixed rotating shaft 18, arranging a first thread 19 and a second thread 20 on the fixed rotating shaft 18, connecting a screw block 23 on the first thread 19 and the second thread 20 in a threaded manner, moving the two screw blocks 23 in opposite directions to drive a fixed clamping block 21 to pass through a disassembly port 10 to be clamped with a clamping groove 22 on a disassembly column 5, so as to fix the disassembly column 5, and then installing the drilling tool body 1 and the drilling bit 3;
the cavity of the mounting head 2 of the embodiment is symmetrically provided with sliding columns 11, the buffer board 8 is arranged on the sliding columns 11 in a sliding manner, and the buffer board 8 is connected with the top wall of the cavity of the mounting head 2 through buffer springs 12.
The buffering diagonal rods 7 of the embodiment are connected through a return spring 13.
When the drill bit 3 works, the protection block 4 is driven to move upwards, the protection block 4 is driven to be in contact and matched with the auxiliary mechanism 25, meanwhile, the dismounting column 5 moves upwards, the dismounting block 9 is driven to move upwards, the buffer plate 8 moves upwards, the buffer plate 8 is arranged on the sliding column 11 in a sliding mode, the buffer spring 12 is compressed, the reset spring 13 is pulled through the matching of the buffer inclined rod 7, the drill bit 3 can achieve an upward buffer force, and the effect of buffering and protecting the drill bit is further achieved;
referring to fig. 4, the trigger mechanism 14 of the present embodiment includes a trigger sleeve 141, a trigger block 142 is slidably disposed in the trigger sleeve 141, a lower contact 143 is disposed on a top of the trigger block 142, an upper contact 144 is disposed on a top wall of the trigger sleeve 141, a trigger post 146 is disposed at a bottom of the trigger block 142, and the trigger post 146 passes through the trigger sleeve 141 and is disposed in cooperation with the detaching post 5.
The trigger block 142 and the inner bottom wall of the trigger sleeve 141 of the present embodiment are connected by a trigger spring 145.
The lower contact piece 143 and the upper contact piece 144 of the present embodiment are electrically connected and contact is used for controlling the stationary motor 15.
Insert the dismantlement post 5 in dismantling the mouth 10 through installation head 2, then drive and trigger post 146 and remove, and then trigger block 142 rebound, drive contact 143 down, last contact 144 and contact to realize the fixed motor 15 of control, start fixed motor 15, play the effect of buffering through trigger spring 145, contact 143 down, the contact 144 buffering nature contact of going up, thereby improved the protection effect of contact 143 down, last contact 144.
Referring to fig. 5-6, the auxiliary mechanism 25 of the present embodiment includes an auxiliary sleeve box 251, auxiliary uprights 252 are symmetrically disposed on an inner top wall of the auxiliary sleeve box 251, an auxiliary plate 253 is slidably disposed on the auxiliary uprights 252, the auxiliary plate 253 is connected to the inner top wall of the auxiliary sleeve box 251 through a vertical auxiliary spring 254, a main column 255 is disposed at a bottom of the auxiliary plate 253, a same plate 256 is further disposed in the auxiliary sleeve box 251, the main column 255 passes through the same plate 256 and is connected to a fixed mounting block 257, an auxiliary groove 259 is disposed on the fixed mounting block 257, an auxiliary block 2510 is slidably disposed in the auxiliary groove 259, the auxiliary block 2510 is hinged to an auxiliary link 2511, two auxiliary links 2511 are hinged to a moving plate 2512, a moving column 2513 is disposed at a bottom of the moving plate 2512, the moving column 2513 passes through the auxiliary sleeve box 251 and is connected to a moving contact block 251.
The two auxiliary blocks 2510 of the present embodiment are connected by a connection spring 2515.
In this embodiment, a positioning moving groove 2516 is formed in the inner wall of the auxiliary sleeve 251, and the moving plate 2512 is slidably disposed in the positioning moving groove 2516.
The fixed mounting block 257 of this embodiment is coupled to the same plate 256 by a vertical assist spring 258.
The movable contact block 2514 moves upwards to drive the movable column 2513 to move upwards, the connecting rod 2511 drives the auxiliary block 2510 to slide in the auxiliary groove 259, and the connecting spring 2515 compresses to realize the buffering effect; meanwhile, the fixed mounting block 257 is driven to move upwards, the main column 255 moves upwards, the vertical auxiliary spring 258 is compressed, the auxiliary plate 253 slides on the auxiliary vertical column 252, and the vertical auxiliary spring 254 is compressed, so that a good compression buffering effect is achieved, and a protection effect is achieved on the drill bit 3.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A hydraulic hole making mechanism without a withdrawal drill rod for underground drilling of a coal mine comprises a drilling tool body (1) and a drilling bit (3), and is characterized in that an installing head (2) is fixedly arranged at the bottom of the drilling tool body (1), a protection block (4) is arranged at the top of the drilling bit (3), a dismounting column (5) is arranged at the upper part of the protection block (4), the dismounting column (5) penetrates through the installing head (2) to be arranged, a buffer seat (6) is arranged on the top wall in a cavity of the installing head (2), a buffer inclined rod (7) is hinged at the bottom of the buffer seat (6), and a buffer plate (8) is hinged to the two buffer inclined rods (7) together;
the bottom of the buffer plate (8) is provided with a disassembling block (9), the bottom of the disassembling block (9) is provided with a disassembling opening (10), the disassembling column (5) is detachably arranged in the disassembling opening (10), and the bottom wall in the disassembling opening (10) is provided with a triggering mechanism (14); a fixed motor (15) is arranged in a cavity of the disassembling block (9);
an output shaft of the fixed motor (15) is connected with a first bevel gear (16), the first bevel gear (16) is meshed with a second bevel gear (17), the second bevel gear (17) is connected with a fixed rotating shaft (18), a first thread (19) and a second thread (20) are arranged on the fixed rotating shaft (18), a screw block (23) is in threaded connection with the first thread (19) and the second thread (20), a fixed clamping block (21) is arranged at the bottom of the screw block (23), and the fixed clamping block (21) penetrates through the dismounting opening (10) and is clamped and fixed with a clamping groove (22) on the dismounting column (5); the screw block (23) is hinged with the inner top wall of the cavity of the dismounting block (9) through a hinge rod (24); the mounting head (2) is provided with auxiliary mechanisms (25) on two sides of the dismounting column (5).
2. The hydraulic cave-making mechanism without withdrawing the drill rod for the coal mine underground drilling is characterized in that sliding columns (11) are symmetrically arranged in a cavity of the mounting head (2), a buffer plate (8) is arranged on the sliding columns (11) in a sliding mode, and the buffer plate (8) is connected with the top wall of the cavity of the mounting head (2) through a buffer spring (12).
3. The hydraulic cave-making mechanism for the coal mine underground drilling without withdrawing the drill rod as claimed in claim 1, wherein the buffering inclined rods (7) are connected through a return spring (13).
4. The hydraulic cave-making mechanism for the coal mine underground drilling without withdrawing the drill rod as claimed in claim 1, wherein the triggering mechanism (14) comprises a triggering sleeve box (141), a triggering block (142) is slidably arranged in the triggering sleeve box (141), a lower contact piece (143) is arranged at the top of the triggering block (142), an upper contact piece (144) is arranged on the inner top wall of the triggering sleeve box (141), a triggering column (146) is arranged at the bottom of the triggering block (142), and the triggering column (146) penetrates through the triggering sleeve box (141) to be matched with the detaching column (5).
5. The hydraulic cave making mechanism for coal mine underground drilling without withdrawing a drill rod as claimed in claim 4, wherein the triggering block (142) and the inner bottom wall of the triggering sleeve box (141) are connected through a triggering spring (145).
6. The hydraulic cave-making mechanism for the coal mine underground drilling without withdrawing the drill rod as claimed in claim 4, wherein the lower contact piece (143) and the upper contact piece (144) are electrically connected and contacted for controlling the fixed motor (15).
7. The hydraulic hole making mechanism without withdrawing a drill rod for underground drilling of a coal mine as claimed in claim 1, wherein the auxiliary mechanism (25) comprises an auxiliary sleeve box (251), auxiliary vertical columns (252) are symmetrically arranged on the inner top wall of the auxiliary sleeve box (251), an auxiliary plate (253) is slidably arranged on the auxiliary vertical columns (252) in a sleeved mode, the auxiliary plate (253) is connected with the inner top wall of the auxiliary sleeve box (251) through a vertical auxiliary spring (254), a main column (255) is arranged at the bottom of the auxiliary plate (253), a same plate (256) is further arranged in the auxiliary sleeve box (251), the main column (255) penetrates through the same plate (256) and is connected with a fixed mounting block (257), an auxiliary groove (259) is arranged on the fixed mounting block (257), an auxiliary block (2510) is slidably arranged in the auxiliary groove (259), an auxiliary connecting rod (2511) is hinged to the auxiliary connecting rod (2510), and a moving plate (2512) is hinged to the two auxiliary connecting rods, the bottom of the moving plate (2512) is provided with a moving column (2513), the moving column (2513) penetrates through the auxiliary sleeve box (251) to be connected with a moving contact block (2514), and the moving contact block (2514) is matched with the protection block (4).
8. The hydraulic cave-making mechanism for the coal mine underground drilling without withdrawing the drill rod as claimed in claim 7, wherein two auxiliary blocks (2510) are connected and arranged through a connecting spring (2515).
9. The hydraulic cave-making mechanism for the coal mine underground drilling without withdrawing the drill rod as claimed in claim 7, wherein the inner wall of the auxiliary sleeve box (251) is provided with a positioning movable groove (2516), and the moving plate (2512) is arranged in the positioning movable groove (2516) in a sliding way.
10. The hydraulic cave making mechanism for the underground coal mine drilling without withdrawing the drill rod as claimed in claim 7, wherein a vertical auxiliary spring (258) is arranged between the fixed mounting block (257) and the same plate (256).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011089975.8A CN112112580A (en) | 2020-10-13 | 2020-10-13 | Hydraulic cave-making mechanism without withdrawing drill rod for underground drilling of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011089975.8A CN112112580A (en) | 2020-10-13 | 2020-10-13 | Hydraulic cave-making mechanism without withdrawing drill rod for underground drilling of coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112112580A true CN112112580A (en) | 2020-12-22 |
Family
ID=73798541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011089975.8A Withdrawn CN112112580A (en) | 2020-10-13 | 2020-10-13 | Hydraulic cave-making mechanism without withdrawing drill rod for underground drilling of coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112112580A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201485A (en) * | 2023-05-04 | 2023-06-02 | 吉林大学 | Intelligent telescopic hydraulic exploitation drilling tool for hydraulic exploitation of drilling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619469A (en) * | 2012-04-13 | 2012-08-01 | 辽宁工程技术大学 | Device for hole drilling, seam cutting and pressure relief of coal seam |
| CN206668250U (en) * | 2017-04-19 | 2017-11-24 | 江苏建筑职业技术学院 | A kind of soilstone ratio drilling equipment |
| CN109322616A (en) * | 2018-12-12 | 2019-02-12 | 曹兰文 | A kind of coal mine roadway repair equipment |
| CN210217637U (en) * | 2019-07-10 | 2020-03-31 | 江西工程学院 | Pile driving device for civil engineering |
| CN210650550U (en) * | 2019-10-09 | 2020-06-02 | 张永辉 | Damping device suitable for mine drilling machine |
| CN211474030U (en) * | 2019-09-25 | 2020-09-11 | 翁牛特旗盛世莲花矿业有限责任公司 | A shock attenuation environmental protection drilling equipment for coal mining |
| CN111692158A (en) * | 2020-06-24 | 2020-09-22 | 佛山市南海发雄液压汽配实业有限公司 | Structure for controlling stroke of hydraulic cylinder |
-
2020
- 2020-10-13 CN CN202011089975.8A patent/CN112112580A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619469A (en) * | 2012-04-13 | 2012-08-01 | 辽宁工程技术大学 | Device for hole drilling, seam cutting and pressure relief of coal seam |
| CN206668250U (en) * | 2017-04-19 | 2017-11-24 | 江苏建筑职业技术学院 | A kind of soilstone ratio drilling equipment |
| CN109322616A (en) * | 2018-12-12 | 2019-02-12 | 曹兰文 | A kind of coal mine roadway repair equipment |
| CN210217637U (en) * | 2019-07-10 | 2020-03-31 | 江西工程学院 | Pile driving device for civil engineering |
| CN211474030U (en) * | 2019-09-25 | 2020-09-11 | 翁牛特旗盛世莲花矿业有限责任公司 | A shock attenuation environmental protection drilling equipment for coal mining |
| CN210650550U (en) * | 2019-10-09 | 2020-06-02 | 张永辉 | Damping device suitable for mine drilling machine |
| CN111692158A (en) * | 2020-06-24 | 2020-09-22 | 佛山市南海发雄液压汽配实业有限公司 | Structure for controlling stroke of hydraulic cylinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201485A (en) * | 2023-05-04 | 2023-06-02 | 吉林大学 | Intelligent telescopic hydraulic exploitation drilling tool for hydraulic exploitation of drilling |
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Application publication date: 20201222 |