Water cutting machine clamp for coal mine

Abstract

The utility model discloses a water cutting machine clamp for a coal mine, and relates to the technical field of coal mining. The planetary reducer comprises a planetary reducer body, an input shaft of the planetary reducer body is connected with a transmission flexible shaft, and a mounting plate is fixedly arranged on the top of the planetary reducer body; the first clamping piece is used for clamping and fixing the cutting gun, the first clamping piece comprises a sleeve fixedly arranged on an output shaft of the planetary reducer, and the two sides of the top of the sleeve are in threaded connection with locking bolts; and the second clamping piece is used for clamping and fixing the anchor cable, the second clamping piece comprises a fixed locking piece fixedly arranged on one side of the mounting plate, and one end of the fixed locking piece is rotationally connected with a movable locking piece through a pin shaft. The first clamping piece and the second clamping piece are arranged, the anchor cable is cut through the cutting machine, the recovery rate of the anchor cable can be increased, the working hour utilization rate is increased, the labor intensity of operators and safety accidents are reduced, the practicability is high, and the anchor cable cutting device is worthy of universal application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining equipment, in particular to a clamp for a water cutting machine in coal mines. Background Art

[0002] At present, some mining areas adopt the longwall mining method for retreating mining and use the caving method to manage the roof. Due to the "110" mining method along the goaf entry retaining technology adopted in the fully mechanized mining face, during the construction of the entry retaining along the goaf, a cut-top blast is carried out on one side of the roadway roof to relieve the roof pressure. In order to ensure the integrity of the roadway roof, additional strengthening anchor cables are installed on the original support and shed supports are used to support the roof.

[0003] Traditional anchor cable withdrawal devices are limited by the state, angle and stress conditions of the anchor cables, resulting in low efficiency of recovering anchor cables and high labor intensity. Therefore, we propose a clamp for a water cutting machine in coal mines to solve the above problems. Content of the Utility Model

[0004] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0005] A clamp for a water cutting machine in coal mines, comprising:

[0006] A planetary reducer, the input shaft of the planetary reducer is connected with a transmission flexible shaft, and a mounting plate is fixedly arranged on the top of the planetary reducer;

[0007] A first clamping member for clamping and fixing a cutting gun, the first clamping member comprises a sleeve fixedly arranged on the output shaft of the planetary reducer, and locking bolts are threadedly connected to both sides of the top of the sleeve;

[0008] A second clamping member for clamping and fixing an anchor cable, the second clamping member comprises a fixed lock plate fixedly arranged on one side of the mounting plate, one end of the fixed lock plate is rotatably connected with a movable lock plate through a pin shaft, both the fixed lock plate and the movable lock plate are semicircular and are of suitable sizes, a first channel is arranged at one end of the fixed lock plate far away from the movable lock plate, a movable rod is hinged inside the first channel, a limiting disc is arranged at one end of the movable rod far away from the first channel, a limiting column is slidably sleeved on the surface of the movable rod, a spring is sleeved on the surface of the movable rod between the limiting column and the limiting disc, and a second channel adapted to the movable rod is arranged at one end of the movable lock plate far away from the fixed lock plate.

[0009] Further, the transmission flexible shaft is wound by closely arranging high-carbon steel wires with a circular cross-section.

[0010] Further, buffer pads are annularly and arrayedly arranged on the inner wall of the sleeve, and the buffer pads are elastic rubber pads.

[0011] Further, anti-slip strips are annularly and arrayedly arranged on the inner side walls of the fixed lock plate and the movable lock plate.

[0012] Further, an arc-shaped notch adapted to the limiting post is formed on the side wall of the second channel.

[0013] Further, a support block is arranged between the side wall of the planetary reducer and the fixed lock piece, and the support block is triangular.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. By providing the first clamping member and the second clamping member, the present utility model can be used to clamp the cutting gun and the anchor cable. Through the coordinated action of components such as the planetary reducer, the clamping and recovery of the anchor cable are realized. Using a cutting machine to cut the anchor cable can not only improve the recovery rate of the anchor cable, but also improve the utilization rate of working hours, reduce the labor intensity of operators and the occurrence of safety accidents, and has high practicality and is worthy of general application and promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is another three-dimensional structural schematic diagram of the present utility model.

[0018] Reference numerals: 1, planetary reducer; 2, transmission flexible shaft; 3, mounting plate; 4, first clamping member; 401, sleeve; 402, locking bolt; 403, buffer pad; 5, second clamping member; 501, fixed lock piece; 502, movable lock piece; 503, first channel; 504, movable rod; 505, limiting disc; 506, limiting post; 507, spring; 508, second channel; 509, anti-slip strip; 6, support block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0020] This application provides a clamp for a water cutting machine in coal mines, mainly used to solve the problems of low efficiency of recovering anchor cables and high labor intensity limited by the state, angle and stress conditions of the anchor cables in traditional anchor cable withdrawal devices, and provides the following technical solutions, which will be described in detail below in combination with Figure 1 - Figure 2 make a detailed description:

[0021] A clamp for a water cutting machine in coal mines, comprising:

[0022] A planetary reducer 1, the input shaft of the planetary reducer 1 is connected with a transmission flexible shaft 2, and a mounting plate 3 is fixedly arranged on the top of the planetary reducer 1;

[0023] The first clamping member 4 is used to clamp and fix the cutting gun. The first clamping member 4 includes a sleeve 401 fixedly arranged on the output shaft of the planetary reducer 1. Locking bolts 402 are threadedly connected to both sides of the top of the sleeve 401.

[0024] The second clamping member 5 is used to clamp and fix the anchor cable. The second clamping member 5 includes a fixed lock piece 501 fixedly arranged on one side of the mounting plate 3. One end of the fixed lock piece 501 is rotatably connected to a movable lock piece 502 through a pin shaft. Both the fixed lock piece 501 and the movable lock piece 502 are semicircular arcs and are of suitable sizes. A first channel 503 is arranged at one end of the fixed lock piece 501 away from the movable lock piece 502. A movable rod 504 is hinged inside the first channel 503. A limiting disk 505 is arranged at one end of the movable rod 504 away from the first channel 503. A limiting column 506 is slidably sleeved on the surface of the movable rod 504. A spring 507 is sleeved between the limiting column 506 and the limiting disk 505 on the surface of the movable rod 504. A second channel 508 adapted to the movable rod 504 is arranged at one end of the movable lock piece 502 away from the fixed lock piece 501. An arc-shaped notch adapted to the limiting column 506 is formed on the side wall of the second channel 508.

[0025] The specific implementation process and principle description of the clamp for the coal mine water cutting machine:

[0026] When in use, the function of the first clamping member 4 is to fix the cutting gun. Insert the end of the cutting gun into the inside of the sleeve 401, and then rotate the locking bolt 402 so that the end of it located inside the sleeve 401 abuts against the cutting gun, and the cutting gun can be fixedly installed.

[0027] The main function of the second clamping member 5 is to fix the first clamping member 4 and the cutting gun on the roof anchor cable to facilitate the cutting gun to cut the anchor cable. When in use, insert the anchor cable into the inside of the fixed lock piece 501 and the movable lock piece 502, and then rotate the movable lock piece 502 so that the first channel 503 and the second channel 508 are fitted together. Then rotate the movable rod 504 and pull the limiting column 506 towards the limiting disk 505. After the movable rod 504 is inserted into the inside of the second channel 508, release the limiting column 506. Under the elastic force of the spring 507, the limiting column 506 is inserted into the arc-shaped notch on the side wall of the second channel 508, and a loop can be formed by the fixed lock piece 501 and the movable lock piece 502 to clamp the anchor cable.

[0028] The planetary reducer 1 is a prior art and is composed of parts such as a sun gear, planetary gears, a planetary carrier, and a ring gear. The reduction ratio is 1:36. The functions of the planetary reducer 1 and the operating flexible shaft are to manually drive the flexible shaft to rotate by manpower and start the rotation of the sun gear in a direct connection manner. The sun gear drives the planetary gears combined on the planetary gear carrier to rotate. The whole set of planetary gear systems automatically runs and rotates along the outer ring gear. The planetary carrier is connected to the cutting gun fixture to rotate to achieve the purpose of speed reduction.

[0029] As Figure 1 shown, in some embodiments, the flexible drive shaft 2 is tightly wound by high-carbon steel wires with a circular cross-section. More specifically, the flexible shaft wound by tightly arranging high-carbon steel wires has good flexibility, can be bent and twisted within a certain range, and can adapt to complex installation environments and working conditions. High-carbon steel wires have high tensile properties, can withstand a certain amount of tensile force, ensure the force transmission effect during the transmission process, and at the same time have good wear resistance, extending the service life. The flexible shaft wound by tight arrangement has a compact structure and high transmission efficiency, can effectively transmit power and torque, ensure the stability and reliability of the transmission. Compared with traditional rigid drive shafts, the flexible shaft can be arranged and installed more flexibly, saving space and facilitating engineering design and installation adjustment.

[0030] As Figure 2 shown, in some embodiments, buffer pads 403 are arranged in an annular array on the inner wall of the sleeve 401. The buffer pads 403 are elastic rubber pads. More specifically, the elastic rubber pads arranged in an annular array on the inner wall of the sleeve 401 can effectively absorb vibration and impact force, reduce the vibration and noise generated during the cutting process, protect the cutting gun and reduce the impact on other equipment.

[0031] As Figure 2 shown, in some embodiments, anti-slip strips 509 are arranged in an annular array on the inner side walls of the fixed lock piece 501 and the movable lock piece 502. More specifically, the arrangement of the anti-slip strips 509 can increase the friction force between the lock piece and the wall surface, effectively prevent the anchor cable from sliding during use, and improve the stability and safety of the device.

[0032] As Figure 1 shown, in some embodiments, a support block 6 is arranged between the side wall of the planetary reducer 1 and the fixed lock piece 501. The support block 6 is triangular. More specifically, the arrangement of the support block 6 can provide additional support and fixation, making the connection between the side wall of the planetary reducer 1 and the fixed lock piece 501 more firm and stable. By dispersing the bearing capacity through the triangular support block 6, a uniform distribution is formed on the contact surface, reducing the single-point concentrated load and improving the durability and service life of the overall structure.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fixture for a water cutting machine used in coal mines, characterized in that, Including: A planetary speed reducer (1), the input shaft of the planetary speed reducer (1) is connected with a transmission flexible shaft (2), and a mounting plate (3) is fixedly arranged on the top of the planetary speed reducer (1); A first clamping member (4) for clamping and fixing a cutting torch, the first clamping member (4) includes a sleeve (401) fixedly arranged on the output shaft of the planetary speed reducer (1), and locking bolts (402) are threadedly connected to both sides of the top of the sleeve (401); A second clamping member (5) for clamping and fixing a cable, the second clamping member (5) includes a fixed lock plate (501) fixedly arranged on one side of the mounting plate (3), one end of the fixed lock plate (501) is rotatably connected with a movable lock plate (502) through a pin shaft, both the fixed lock plate (501) and the movable lock plate (502) are semicircular arcs and are of the same size and are adapted to each other, a first channel (503) is arranged at one end of the fixed lock plate (501) away from the movable lock plate (502), a movable rod (504) is hinged inside the first channel (503), a limiting disc (505) is arranged at one end of the movable rod (504) away from the first channel (503), a limiting column (506) is slidably sleeved on the surface of the movable rod (504), a spring (507) is sleeved between the limiting column (506) and the limiting disc (505) on the surface of the movable rod (504), and a second channel (508) adapted to the movable rod (504) is arranged at one end of the movable lock plate (502) away from the fixed lock plate (501).

2. The fixture for a water cutting machine used in coal mines according to claim 1, wherein, The transmission flexible shaft (2) is wound by closely arranging high-carbon steel wires with a circular cross-section.

3. The fixture of a water cutting machine for coal mines according to claim 1, wherein Buffer pads (403) are annularly arranged on the inner wall of the sleeve (401), and the buffer pads (403) are elastic rubber pads.

4. A fixture for a water cutting machine used in coal mines according to claim 1, characterized in that, Anti-slip strips (509) are annularly arranged on the inner side walls of the fixed lock plate (501) and the movable lock plate (502).

5. A fixture for a water cutting machine used in coal mines according to claim 1, characterized in that, An arc-shaped notch (5081) adapted to the limiting column (506) is formed on the side wall of the second channel (508).

6. The fixture of a water cutting machine for coal mines according to claim 1, characterized in that, A support block (6) is arranged between the side wall of the planetary speed reducer (1) and the fixed lock plate (501), and the support block (6) is triangular.

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