CN115306298A - Coal mining face end hanging roof treatment device - Google Patents

Abstract

The invention discloses a ceiling suspension treatment device for an end of a coal mining face, which comprises a machine base, a working platform and a water injection pipe. Crawler wheels are installed on the outside of the machine base, and a working platform is arranged on the top of the machine base; the guide The inside of the seat is also provided with a water injection pipe, the middle part of the working platform and the two ends of the bracket are connected with sprockets at the same time, and the outer sides of the three sprockets are connected with transmission chains. The overhead treatment device for the end of the coal mining face drives the worm and the worm gear to rotate at a reduced speed through the steering motor, so that the "V"-shaped bracket on the rotating seat is rotated forward or reversely, so that the water injection pipe and the drilling mechanism can be exchanged. , through the drive chain to drive the sprocket to rotate in the forward and reverse directions, drilling at different angles can be performed according to the shape of the suspended roof coal seam, and it is convenient for the conversion operation of drilling and fracturing water injection in the suspended roof coal seam. The high-pressure water fracturing treatment of the overhanging coal seam is convenient to improve the efficiency of rock formation fracturing in the overhanging coal mine.

Description

Suspension roof treatment device for the end of coal mining face

technical field

The invention relates to the technical field of ceiling suspension processing of coal mining face, in particular to a ceiling suspension processing device for the end of coal mining face.

Background technique

Large-area overhangs at both ends of the fully mechanized mining face can easily cause gas accumulation at the upper and lower corners, directly affecting normal mining and safe production. High-pressure water injection is generally used for fracturing when the end of the coal mining face is suspended from the roof. Generally, high-pressure water is injected into the hard roof coal seam through drilling holes during operation, so that the hard and complete roof rock layer produces cracks or separation layers. , so that the strength of the overhanging coal seam at the end of the coal mining face collapses by itself.

Conventional suspended roof treatment devices can soften the rock mass by injecting high-pressure water, so as to realize fracturing of the suspended roof coal mine strata. However, when the suspended roof treatment device is in use, equipment is required to drill the suspended roof coal mine rock , and insert the water injection pipe into the borehole for softening and fracturing of the rock formation of the suspended roof coal mine, but during operation, the drilling equipment and high-pressure water fracturing equipment of the suspended roof processing device can only be operated separately, and a large number of workers are required to operate , so that the suspended roof processing device cannot perform the conversion operation of drilling and fracturing water injection, so we propose a suspended roof processing device at the end of the coal mining face.

Contents of the invention

The object of the present invention is to provide a suspended roof treatment device for the end of a coal mining face, to solve the problem that the conventional suspended roof treatment device proposed by the above-mentioned background technology can soften the rock mass by injecting high-pressure water, thereby realizing the maintenance of the suspended roof coal mine rock formation. Perform fracturing treatment, but when the suspended roof treatment device is in use, equipment is required to drill the rock formation of the suspended roof coal mine, and insert the water injection pipe into the drill hole to perform softening and fracturing of the suspended roof coal mine rock formation, but during operation, the suspended roof The drilling equipment and high-pressure water fracturing equipment of the processing device can only be operated separately, and a large number of workers are required to operate, which makes it impossible for the suspended top processing device to perform the conversion operation of drilling and fracturing water injection.

In order to achieve the above object, the present invention provides the following technical solutions: a suspended roof processing device for the end of the coal mining face, including a machine base, a working platform and a water injection pipe, track wheels are installed on the outside of the machine base, and the top of the machine base A working platform is provided. The working platform includes a driving motor, a rotating seat, a worm gear, a worm, a steering motor and a bracket. The driving motor is installed on one side of the middle of the working platform, and the bracket is in a "V" shape. And one end of the bracket is fixed with a guide seat;

The inside of the guide seat is also provided with a water injection pipe, the middle part of the working platform and the two ends of the bracket are connected with sprockets at the same time, and the outer sides of the three sprockets are connected with transmission chains, and the end of the bracket is far away from the guide seat A mounting block is connected through a fixed shaft, a drilling mechanism is arranged on one side of the mounting block, a high-pressure pump is installed on the upper edge of the working platform, and a third hydraulic rod is installed between the base and the working platform.

Preferably, the inside of the working platform is through-connected with the rotating base through a transmission shaft, and a worm gear is fixed on one side of the rotating base.

Preferably, a worm mounted on the working platform through a bearing seat is connected to the bottom of the worm wheel, one end of the worm is docked with the output end of the steering motor, and a bracket is fixed on the outside of the bracket.

Preferably, the water injection pipe includes a rotating sleeve, a fixed sleeve, a sleeve plate, a slide rail, a first hydraulic rod, a connecting frame, a limit seat, a top sleeve and a sealing bag.

Preferably, the middle part of the guide seat is movably connected with a rotating sleeve, the rotating sleeve is fixed to the outside of the water injection pipe, the side of the water injection pipe close to the rotating sleeve is provided with a fixed sleeve, and the outer side of the fixed sleeve is rotatably connected There are boards.

Preferably, a slide rail is fixed on one side of the cover plate, a first hydraulic rod is mounted on the fixing sleeve, and an output end of the first hydraulic rod is slidably connected to the slide rail.

Preferably, the side of the cover plate away from the slide rail is connected to a connecting frame through a rotating shaft, and the top end of the connecting frame is slidably connected to the bottom of the limit seat.

Preferably, a top cover is fixed on the top of the limit seat, and a sealing bag is docked above the top cover, and the sealing bag is socketed with the water injection pipe, and the water injection pipe is docked with the top of the sealing bag through a stopper.

Preferably, the drilling mechanism further includes a guide rail, a drill and a second hydraulic rod, and one side of the installation block is welded and fixed to the guide rail.

Preferably, the inside of the guide rail is fixed with the drilling rig through a slider, and the output end of the drilling rig is connected with a drill rod, the bottom end of the guide rail is equipped with a second hydraulic rod, and the output end of the second hydraulic rod is connected to the drilling rig. Side slider butt.

Compared with the prior art, the beneficial effect of the present invention is that the end suspension processing device of the coal mining face drives the worm and the worm wheel to decelerate and rotate through the steering motor, so that the "V"-shaped support on the rotating seat rotates forward Or reverse, so that the water injection pipe and the drilling mechanism are exchanged, and the sprocket is driven by the transmission chain to rotate in the forward and reverse directions. It can be drilled at different angles according to the shape of the suspended roof coal seam, and it is convenient for the suspended roof coal seam to be drilled and drilled. The conversion operation of fracturing water injection, and at the same time, the water injection pipe cooperates with the sealing bag to perform high-pressure water fracturing treatment on the suspended roof coal seam, which is convenient to improve the efficiency of fracturing the suspended roof coal mine rock formation.

1. The top suspension processing device at the end of the coal mining face drives the worm to rotate forward or reverse through the steering motor, so that the worm drives the worm wheel to rotate at a reduced speed, so that the worm wheel drives the "V"-shaped bracket on the rotating seat to rotate forward or reverse Turn, so that the water injection pipe and the drilling mechanism are exchanged. The transmission shaft at one end of the drive motor passes through the rotating seat to drive the sprocket on the side of the working platform to rotate forward. Since the three sprockets are connected through the transmission chain, the side of the guide seat The chain wheel drives the water injection pipe to rotate around the rotating sleeve, so that the water injection pipe is far away from the overhanging coal seam. The drilling mechanism on one side of the block faces the overhanging coal seam at a vertical angle or an oblique angle. On the contrary, by reversing the driving motor, the transmission chain drives the three sprockets to reverse, so that the drilling mechanism is far away from the overhanging coal seam, and injection The water pipe is close to the suspended roof coal seam, and the transmission chain drives the sprocket to rotate forward, so that the drilling mechanism can store the water injection pipe when it is working, so as to prevent the suspended roof coal seam from hitting the water injection pipe, and at the same time carry out different angles according to the shape of the suspended roof coal seam Drilling treatment, through the drive chain to drive the sprocket to rotate in reverse, so that the drilling mechanism can be stored when the water injection pipe is working, so as to avoid the impact of the suspended coal seam on the drilling mechanism. It is convenient for the conversion operation of drilling and fracturing water injection in the suspended roof coal seam;

2. The ceiling suspension processing device at the end of the coal mining face drives the working platform upwards through the third hydraulic rod, so that the top opening end of the water injection pipe is inserted into the drill hole of the ceiling suspension coal seam, and the output end of the first hydraulic rod pushes the sleeve The slide rail on one side of the board makes the other side of the cover board tilt up, so that the "L"-shaped connecting frame rotates, and the rotating connecting frame pushes the limit seat to move up, and the upper end of the connection frame moves along the limit seat. One side slides, so that the limit seat pushes the top sleeve to squeeze the sealing bag, so that the sealing bag is deformed, so that the drilling hole can be sealed and blocked. Introduced into the water injection pipe, so that the water injection pipe cooperates with the sealing bag to perform high-pressure water fracturing on the suspended roof coal seam;

3. The ceiling suspension processing device at the end of the coal mining face drives the working platform up through the third hydraulic rod, so that the drilling rig can rise in position, and by starting the operation of the second hydraulic rod, the second hydraulic rod pushes the The slider moves up, so that the drilling rig moves up along one side of the guide rail, so that the drilling rig drives the rotating drill rod to position and drill holes on the top of the coal mining face end, so that the processing device can hang the coal mining face end. Both ends of the roof are moved up to drill holes, which is convenient for drilling according to the height of the suspended roof at the end of the coal mining face.

Description of drawings

Fig. 1 is a schematic diagram of the main view structure of the present invention;

Fig. 2 is a schematic diagram of the front view structure of the water injection pipe after the rotation angle of the present invention;

Fig. 3 is the rear view cross-sectional structure schematic diagram of the present invention;

Fig. 4 is the left view sectional structure schematic diagram of working platform of the present invention;

Fig. 5 is a top view structural schematic diagram of the guide seat of the present invention;

Fig. 6 is a schematic view of the structure of the guiding seat of the present invention viewed from above;

Fig. 7 is a schematic cross-sectional structure schematic diagram of the front view of the water injection pipe of the present invention;

Fig. 8 is a front view cross-sectional structural schematic diagram of the drilling mechanism of the present invention.

In the figure: 1. Machine base; 2. Track wheels; 3. Working platform; 31. Driving motor; 32. Rotary seat; 33. Worm wheel; 34. Worm; 35. Steering motor; 36. Bracket; 4. Guide seat; 5. Water injection pipe; 51. Rotating sleeve; 52. Fixed sleeve; 53. Cover plate; 54. Slide rail; 55. First hydraulic rod; 56. Connecting frame; 57. Limiting seat; 58. Top sleeve; Sealing bag; 6, sprocket; 7, transmission chain; 8, installation block; 9, drilling mechanism; 91, guide rail; 92, drilling rig; 93, second hydraulic rod; 10, high pressure pump; 11, third hydraulic rod .

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-8, the present invention provides a technical solution: a suspended roof processing device for the end of a coal mining face, including a machine base 1, a working platform 3 and a water injection pipe 5, and a crawler wheel 2 is installed on the outside of the machine base 1, The top of support 1 is provided with working platform 3, and working platform 3 comprises driving motor 31, swivel seat 32, worm gear 33, worm screw 34, steering motor 35 and support 36, and driving motor 31 is installed on the side of working platform 3 middle parts, The bracket 36 has a "V" shape structure, and one end of the bracket 36 is fixed with a guide seat 4, and the inside of the guide seat 4 is also provided with a water injection pipe 5, and the middle part of the working platform 3 and the two ends of the bracket 36 are connected with a sprocket 6 at the same time. , the outer sides of the three sprockets 6 are connected with a transmission chain 7, the end of the bracket 36 away from the guide seat 4 is connected with a mounting block 8 through a fixed shaft, and one side of the mounting block 8 is provided with a drilling mechanism 9, and the upper edge of the working platform 3 A high-pressure pump 10 is installed, and a third hydraulic rod 11 is installed between the base 1 and the working platform 3 , and the third hydraulic rod 11 is connected with the hydraulic oil pump in the base 1 through a hydraulic oil pipeline.

The inside of the working platform 3 is connected through the transmission shaft with the rotating base 32, and one side of the rotating base 32 is fixed with a worm wheel 33; the lower part of the worm wheel 33 is connected with a worm 34 installed through a bearing seat and the working platform 3, and one end of the worm 34 is connected to the steering wheel. The output end of the motor 35 is docked, and the outside of the bracket 36 is fixed with a bracket 36. The three sprockets 6 are respectively fixed with the transmission shaft at one end of the swivel seat 32, the connecting shaft of the swivel sleeve 51 and the fixed shaft at one end of the bracket 36. The guide seat 4 There is an arc-shaped reserved hole on one side.

During specific implementation, the machine base 1 walks in the channel of the coal mining face through the crawler wheel 2, and drives the worm 34 to rotate forward or reversely through the steering motor 35, so that the worm 34 drives the worm wheel 33 to decelerate and rotate, so that the worm wheel 33 drives the rotation The "V"-shaped support 36 on the seat 32 rotates forward or reversely, so that the water injection pipe 5 and the drilling mechanism 9 are exchanged. When the driving motor 31 is rotating forward, the drive shaft at one end of the driving motor 31 passes through the rotating seat 32 Drive the sprocket 6 on one side of the working platform 3 to rotate forward. Since the three sprockets 6 are connected by the transmission chain 7, the sprocket 6 on the side of the guide seat 4 drives the water injection pipe 5 to rotate around the rotating sleeve 51, so that the injection The water pipe 5 is far away from the suspended roof coal seam, and at the same time, the transmission chain 7 drives the sprocket 6 on one side of the installation block 8 to rotate forward, so that the installation block 8 drives the drilling mechanism 9 close to the suspended roof coal seam, and passes through the drilling mechanism 9 on the side of the installation block 8 The vertical angle or the inclined angle is towards the overhanging coal seam. On the contrary, by reversing the driving motor 31, the transmission chain 7 drives the three sprockets 6 to reverse, so that the drilling mechanism 9 is far away from the overhanging coal seam, and the water injection pipe 5 is close to the overhanging coal seam. For the suspended roof coal seam, the transmission chain 7 drives the sprocket 6 to rotate in the forward direction, so that the drilling mechanism 9 can store the water injection pipe 5 when it is working, so as to avoid the impact of the suspended roof coal seam on the water injection pipe 5, and at the same time carry out the operation according to the shape of the suspended roof coal seam. Drilling at different angles, the transmission chain 7 drives the sprocket 6 to rotate in reverse, so that the water injection pipe 5 can store the drilling mechanism 9 when it is working, so as to avoid the impact of the suspended coal seam on the drilling mechanism 9. At the same time, the transmission chain 7 drives the forward and reverse rotation of the sprocket wheel 6, which can facilitate the conversion operation of drilling and fracturing water injection in the suspended roof coal seam.

The water injection pipe 5 includes a rotating sleeve 51, a fixed sleeve 52, a sleeve plate 53, a slide rail 54, a first hydraulic rod 55, a connecting frame 56, a position limiting seat 57, a top sleeve 58 and a sealing bag 59; the middle part of the guide seat 4 is movable A rotating sleeve 51 is connected, and the outer side of the rotating sleeve 51 and the water injection pipe 5 is fixed. The side of the water injection pipe 5 near the rotating sleeve 51 is provided with a fixed sleeve 52, and the outer side of the fixed sleeve 52 is rotatably connected with a sleeve plate 53; One side is fixed with a slide rail 54, and the first hydraulic rod 55 is installed on the fixed sleeve 52, and the output end of the first hydraulic rod 55 is slidingly connected with the slide rail 54; frame 56, the top of the connecting frame 56 is slidingly connected with the bottom of the limit seat 57; socket, and the water injection pipe 5 is docked with the top of the sealing bag 59 through the stopper, the output end of the water injection pipe 5 and the high-pressure pump 10 is connected through a high-pressure hose, and the input end of the high-pressure pump 10 is connected to the ground water storage through the water pipe. The pool is docked, the connecting frame 56 is "L" shape, and one side of the connecting frame 56 and the limit seat 57 is a sliding connection, the top sleeve 58 is slidingly connected to the reserved groove on the outer wall of the water injection pipe 5, and the sealing bag 59 Made of rubber, the first hydraulic rod 55 is connected with the hydraulic oil pump in the base 1 through a hydraulic oil pipeline.

During specific implementation, when the transmission chain 7 cooperates with the sprocket 6 to drive the water injection pipe 5 to rotate along the arc-shaped reserved hole of the guide seat 4, so that the water injection pipe 5 rotates corresponding to the drilled hole in the suspended roof coal seam, and passes through the third hydraulic rod 11 Drive the working platform 3 to move up, so that the top open end of the water injection pipe 5 is inserted into the borehole of the suspended roof coal seam, and the hydraulic pump sends the hydraulic oil to the first hydraulic rod 55 through the hydraulic oil pipeline, so that the first hydraulic rod 55 The output end pushes the slide rail 54 on one side of the sleeve plate 53, so that the other side of the sleeve plate 53 is tilted up, so that the "L"-shaped connecting frame 56 rotates, and the rotating connecting frame 56 pushes the limit seat 57 to move upward. And the upper end of the connecting frame 56 slides along one side of the limit seat 57, so that the limit seat 57 pushes the top sleeve 58 to squeeze the sealing bag 59, so that the sealing bag 59 is deformed, so that the drill hole can be sealed and blocked, and the high-pressure The pump 10 introduces the high-pressure water in the ground reservoir into the water injection pipe 5 through the water delivery pipe and high-pressure hose, so that the water injection pipe 5 cooperates with the sealing bag 59 to perform high-pressure water fracturing on the suspended roof coal seam. When the first hydraulic rod 55 pulls When the slide rail 54 is used, the cover plate 53 drives the connecting frame 56 and the limit seat 57 to move down, so that the sealing bag 59 is reset, and when the third hydraulic rod 11 drives the working platform 3 to move down, the water injection pipe 5 can be separated from the suspended ceiling. The drilling of the coal seam, so as to complete the fracturing treatment of the suspended roof at the end of the coal mining face.

The drilling mechanism 9 also includes a guide rail 91, a drilling machine 92 and a second hydraulic rod 93, and one side of the mounting block 8 and the guide rail 91 is welded and fixed; A drill pipe is connected, and a second hydraulic rod 93 is installed on the bottom end of the guide rail 91, and the output end of the second hydraulic rod 93 is docked with the slider on one side of the drilling rig 92, and the second hydraulic rod 93 is connected to the base 1 through the hydraulic oil pipeline. The internal hydraulic oil pump is connected.

During specific implementation, the third hydraulic rod 11 drives the working platform 3 to move up, so that the drilling machine 92 can be raised in position, and by starting the second hydraulic rod 93 to run, the second hydraulic rod 93 pushes the slide block in the guide rail 91 to move upward. , so that the drilling rig 92 moves up along one side of the guide rail 91, so that the drilling rig 92 drives the rotating drill rod to position and drill the ceiling of the coal mining face end, which is convenient for the processing device to suspend the coal mining face end Carry out drilling at both ends to facilitate drilling according to the height of the overhang at the end of the coal mining face.

To sum up, the base 1 walks in the channel of the coal mining face through the track wheel 2, and drives the worm 34 to rotate forward or reverse through the steering motor 35, so that the worm 34 drives the worm wheel 33 to decelerate and rotate, so that the worm wheel 33 drives The "V"-shaped bracket 36 on the swivel seat 32 rotates forward or reversely, so that the water injection pipe 5 and the drilling mechanism 9 can be exchanged, and the transmission chain 7 drives the sprocket 6 to rotate positively and negatively, which can facilitate the drilling of the suspended roof coal seam. In the conversion operation of hole and fracturing water injection, start the second hydraulic rod 93 to drive the drilling rig 92 to perform positioning drilling on the top of the coal mining face, and then insert the top open end of the water injection pipe 5 into the drilled hole of the top coal seam , the high-pressure pump 10 introduces the high-pressure water in the ground reservoir into the water injection pipe 5 through the water delivery pipe and the high-pressure hose, so that the water injection pipe 5 cooperates with the sealing bag 59 to perform high-pressure water fracturing treatment on the suspended roof coal seam, which is not described in this description. The content described in detail belongs to the prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention.

Claims (10)

1. Coal face end suspended ceiling processing apparatus, including frame (1), work platform (3) and water injection pipe (5), its characterized in that:

the crawler wheel (2) is installed on the outer side of the base (1), a working platform (3) is arranged on the top of the base (1), the working platform (3) comprises a driving motor (31), a rotating seat (32), a worm wheel (33), a worm (34), a steering motor (35) and a support (36), the driving motor (31) is installed on one side of the middle of the working platform (3), the support (36) is of a V-shaped structure, and a guide seat (4) is fixed at one end of the support (36);

the inside of guide holder (4) still is provided with water injection pipe (5), the middle part of work platform (3) and the both ends of support (36) are connected with sprocket (6), and are three simultaneously the outside of sprocket (6) is connected with drive chain (7), the one end that guide holder (4) were kept away from in support (36) is connected with installation piece (8) through the fixed axle, one side of installation piece (8) is provided with drilling mechanism (9), high-pressure pump (10) are installed at the top edge of work platform (3), install third hydraulic stem (11) between frame (1) and work platform (3).

2. The coal face end suspended roof handling device of claim 1, wherein: the inside of work platform (3) is through transmission shaft and roating seat (32) through connection, one side of roating seat (32) is fixed with worm wheel (33).

3. The coal face end suspended roof handling device of claim 2, wherein: the worm wheel (33) is connected with a worm (34) installed with the working platform (3) through a bearing seat, one end of the worm (34) is in butt joint with the output end of the steering motor (35), and a support (36) is fixed on the outer side of the support (36).

4. The coal face end suspended roof handling device of claim 1, wherein: the water injection pipe (5) comprises a rotating sleeve (51), a fixing sleeve (52), a sleeve plate (53), a sliding rail (54), a first hydraulic rod (55), a connecting frame (56), a limiting seat (57), a top sleeve (58) and a sealing bag (59).

5. The coal face end overhang processing apparatus of claim 4, wherein: the middle part swing joint of guide holder (4) has swivel sleeve (51), the outside of swivel sleeve (51) and water injection pipe (5) is fixed mutually, one side that water injection pipe (5) are close to swivel sleeve (51) is provided with fixed cover (52), the outside swivelling joint of fixed cover (52) has lagging (53).

6. The coal face end suspended roof handling device of claim 5, wherein: one side of the sleeve plate (53) is fixed with a sliding rail (54), a first hydraulic rod (55) is installed on the fixed sleeve (52), and the output end of the first hydraulic rod (55) is connected with the sliding rail (54) in a sliding mode.

7. The coal face end suspended roof handling device of claim 6, wherein: one side of the sleeve plate (53) far away from the sliding rail (54) is in butt joint with a connecting frame (56) through a rotating shaft, and the top end of the connecting frame (56) is in sliding connection with the lower portion of the limiting seat (57).

8. The coal face end suspended roof handling device of claim 7, wherein: the top of spacing seat (57) is fixed with top cover (58), and the top of top cover (58) is docked and is had sealed bag (59), sealed bag (59) cup joint mutually with water injection pipe (5), and butt joint is carried out on the top of water injection pipe (5) through dog and sealed bag (59).

9. The coal face end suspended roof handling device of claim 1, wherein: the drilling mechanism (9) further comprises a guide rail (91), a drilling machine (92) and a second hydraulic rod (93), and one sides of the installation block (8) and the guide rail (91) are welded and fixed.

10. The coal face end overhang treatment apparatus of claim 9, wherein: the inside of guide rail (91) is fixed with rig (92) through the slider, and the output of rig (92) is connected with the drilling rod, second hydraulic stem (93) is installed to the bottom of guide rail (91), and the slider butt joint of the output of second hydraulic stem (93) and rig (92) one side.

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