Auxiliary dismounting tool for large parts of coal mining machine

Abstract

The present application belongs to the technical field of coal mining machine maintenance instruments, and particularly relates to a large component auxiliary dismounting tool for a coal mining machine, which comprises a trolley and a machine case installed on the top of the trolley, the lateral wall of the machine case is provided with a controller, and further comprises a supporting column, which is arranged on one side of the machine case and has a square column fixedly installed at the end thereof, the supporting column and the square column being used for supporting a cutting drum, four horizontal pushing hydraulic oil cylinders are fixedly inserted into the lateral wall of the machine case and are annularly and uniformly distributed about the axis of the supporting column, and the telescopic ends of the four horizontal pushing hydraulic oil cylinders are fixedly connected with a supporting ring. The present application can greatly improve the stability of the cutting drum of the coal mining machine when the cutting drum is dismounted, and can assist in improving the safety of the dismounting of the cutting drum, and can automatically adjust the gravity center of the cutting drum after the cutting drum is dismounted, so as to avoid the shaking of the cutting drum when the cutting drum is turned out, and can clean the surface of the cutting drum.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mining machine maintenance equipment, and in particular relates to an auxiliary disassembly tool for large components of coal mining machines. Background Art

[0002] The drum of the drum coal mining machine works under harsh working conditions and is subjected to long-term impact and wear of coal and rock. The erosion of coal will corrode the drum components, affecting their performance and life. The connection parts are prone to loosening due to vibration, which may cause failures if not repaired. In addition, the wear of the cutting teeth and other parts of the drum will reduce the coal mining efficiency and affect the mining quality. Therefore, the drum needs to be disassembled and repaired to ensure coal mining efficiency and smoothness.

[0003] At present, since the coal shearer is a large and complex mechanical equipment and operates in a complex environment such as a coal mine tunnel, the coal shearer needs to be inspected and maintained every time it works for a period of time to ensure its safe and stable operation. For example, the coal shearer large component auxiliary loading and unloading tool disclosed in patent publication number CN105127710B;

[0004] The auxiliary disassembly device disclosed in the above patent is mainly for the electrical part of the coal mining machine. During the operation of the coal mining machine, the cutting part needs to act directly on the working surface, and is subject to friction, corrosion, impact, etc., so the cutting drum, cutting teeth and other components will be worn. Therefore, the inspection and maintenance frequency of the cutting part is higher. When the cutting drum needs to be removed, the bolts and nuts connecting the cutting drum to the machine body are usually removed, and then the cutting drum is lifted out by the lifting equipment. After the cutting drum is separated from the machine body, it loses the restraint of the machine body, and the lifting equipment is connected to the cutting drum through a hook, a steel cable, etc. Therefore, the cutting drum may shake under the action of gravity and inertia, which poses a certain safety hazard. Secondly, since the connection between the cutting drum and the machine body may be affected by wear, coal impurities, etc., the friction between the cutting drum and the machine body is relatively large. Even after the bolts, nuts, etc. are removed, the cutting drum is still not easy to separate from the machine body. At this time, although a certain degree of pulling force can be applied by the lifting equipment, since the force point of the lifting equipment is higher than the cutting drum, when the lifting equipment applies pulling force to the cutting drum, the pulling direction is inclined, so the load capacity requirements for the lifting equipment are relatively high, and it is more inconvenient to use. Summary of the Invention

[0005] The purpose of the present invention is to provide a large-scale component auxiliary disassembly tool for a coal mining machine in order to solve the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solution: a large-scale component auxiliary disassembly tool for a coal mining machine, comprising a trolley and a chassis mounted on the top of the trolley, a controller mounted on the side wall of the chassis, and further comprising:

[0007] A supporting column is provided on one side of the chassis, a square column is fixedly mounted on the end of the supporting column, and the supporting column and the square column are used to support the cutting drum;

[0008] Four horizontal push hydraulic cylinders are fixedly plugged into the side walls of the chassis and are evenly distributed in a ring about the axis of the supporting column. The telescopic ends of the four horizontal push hydraulic cylinders are commonly fixedly connected to a support ring. The side walls of the support ring are equipped with multiple hanging and pushing assemblies. The support ring is equipped with a drive mechanism, which is transmission-connected to each hanging and pushing assembly.

[0009] a center of gravity detection unit, disposed inside the chassis and configured to detect the center of gravity of the cutting drum;

[0010] a center of gravity adjustment unit, mounted inside the chassis, for adjusting the center of gravity of the cutting drum;

[0011] The air jet cleaning unit is installed on the side wall of the support ring and is used to clean the coal slag on the outer side wall of the cutting drum.

[0012] Preferably, each of the hanging and pushing assemblies includes a flip shaft rotatably arranged on the side wall of the support ring, and the shaft end of the flip shaft is fixedly connected to a flip push plate, and the driving mechanism is used to drive each flip shaft to rotate.

[0013] Preferably, the driving mechanism includes a rotating ring rotatably arranged on the outer wall of the support ring, the outer wall of the support ring is fixedly connected to a hollow ring, and the rotating ring is rotatably connected to the inner wall of the hollow ring, the outer wall of the hollow ring is fixedly connected to a driving motor, and a moving gear is installed at the output end of the driving motor, the moving gear is meshed with the outer wall of the rotating ring, the shaft wall of each of the flip shafts is fixedly sleeved with a static gear, and the static gear is meshed with the inner wall of the rotating ring, and the driving motor is electrically connected to the controller.

[0014] Preferably, the center of gravity detection unit includes a synchronous shaft rotatably arranged on the side wall of the chassis, and one end of the synchronous shaft is fixedly connected to the side wall of the supporting column, the shaft end of the synchronous shaft is fixedly connected to a synchronous disk, the side wall of the chassis on the opposite side of the synchronous shaft is rotatably connected to the detection shaft, and the end of the detection shaft is fixedly connected to the detection disk, the eccentric part of the side wall of the detection disk is fixedly connected to a pressure-bearing column, the side wall of the synchronous disk is provided with a detection hole matching the pressure-bearing column, and the pressure-bearing column passes through the detection hole, the side walls on two opposite sides of the pressure-bearing column are fixedly connected with pressure detectors, and the two pressure detectors are both arranged inside the detection hole, and the pressure detector is electrically connected to the controller.

[0015] Preferably, the center of gravity adjustment unit includes a mounting plate fixedly arranged inside the chassis, and two vertical push hydraulic cylinders are fixedly plugged into the end face of the mounting plate, the telescopic ends of the two vertical push hydraulic cylinders are fixedly connected with tooth plates, and the two tooth plates are respectively arranged on both sides of the detection disk, and the two tooth plates are engaged with the detection disk.

[0016] Preferably, the jet cleaning unit includes an annular air cavity opened inside the support ring, and the inner wall of the annular air cavity is provided with a plurality of jet holes, the outer wall of the hollow ring is fixedly connected to an air pump, and the air outlet end of the air pump is connected to the interior of the annular air cavity, and the hollow ring, rotating ring and support ring are rotatably connected to each other through sealed bearings.

[0017] Preferably, the outer wall of the hollow ring is fixedly connected to a collection box, and the collection box is connected to the suction end of the air pump. A filter is installed inside the collection box at the suction end of the air pump, and an air inlet is provided on the side wall of the collection box away from the air pump.

[0018] Preferably, a plurality of supporting springs are fixedly provided between the hole wall of the detection hole and the side wall of the pressure-bearing column.

[0019] Compared with the existing technology, the advantages of a large-scale component auxiliary disassembly tool for coal mining machines are:

[0020] 1. The cooperation among the trolley, chassis, controller, supporting column and square column can be used to support the removed cutting drum, and the cooperation among the four horizontal push hydraulic cylinders, support rings, hanging push components and drive mechanisms can apply horizontal thrust from the end of the cutting drum to smoothly separate the cutting drum from the machine body. The support of the supporting column and square column can ensure the stability of the cutting drum after it is removed, and help improve the safety of the cutting drum disassembly.

[0021] 2. Through the cooperation of the center of gravity detection unit and the center of gravity adjustment unit, the center of gravity of the dismantled cutting drum can be detected, and based on the result of the center of gravity detection, the center of gravity of the structural drum can be automatically adjusted so that the heavier position of the cutting drum is at the bottom, thereby improving the stability and safety of the subsequent cutting drum when it is transported out.

[0022] 3. The jet cleaning unit can quickly clean the coal slag on the surface of the cutting drum before disassembling it, which can not only avoid the deviation of the center of gravity adjustment of the cutting drum caused by the coal slag, but also facilitate the subsequent repair of the cutting drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of an auxiliary disassembly tool for large-scale components of a coal mining machine provided by the present invention;

[0024] Figure 2 This is a partial cross-sectional structural diagram of a large-scale component auxiliary disassembly tool for a coal mining machine provided by the present invention;

[0025] Figure 3 This is a schematic diagram of the three-dimensional connection structure of a synchronization disk and a detection disk of a large-scale component auxiliary disassembly tool for a coal mining machine provided by the present invention;

[0026] Figure 4 This is a schematic diagram of the connection structure between the detection plate and two tooth plates of a large-scale auxiliary disassembly tool for a coal mining machine provided by the present invention;

[0027] Figure 5 The invention provides a large-scale auxiliary disassembly tool for coal mining machines. Figure 2 A magnified view of the structure of part A;

[0028] Figure 6 The invention provides a large-scale auxiliary disassembly tool for coal mining machines. Figure 3 A magnified view of the structure of part B.

[0029] In the figure: 1 trolley, 2 chassis, 3 controller, 4 supporting column, 5 square column, 6 cutting drum, 7 horizontal push hydraulic cylinder, 8 support ring, 9 hanging push assembly, 91 flip shaft, 92 flip push plate, 10 driving mechanism, 101 rotating ring, 102 hollow ring, 103 driving motor, 104 moving gear, 105 static gear, 11 center of gravity detection unit, 111 synchronous shaft, 112 synchronous disk, 113 detection shaft, 114 detection disk, 115 pressure column, 116 detection hole, 117 pressure detector, 12 center of gravity adjustment unit, 121 mounting plate, 122 vertical push hydraulic cylinder, 123 gear plate, 13 jet cleaning unit, 131 annular air cavity, 132 jet hole, 133 air pump, 14 collecting box, 15 filter, 16 air inlet, 17 support spring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] like Figures 1-6As shown, a large-scale auxiliary disassembly tool for coal mining machine components includes a trolley 1 and a chassis 2 installed on the top of the trolley 1, a controller 3 is installed on the side wall of the chassis 2, and also includes: a supporting column 4, the supporting column 4 is arranged on one side of the chassis 2, and a square column 5 is fixedly installed on the end of the supporting column 4, the supporting column 4 and the square column 5 are used to support the cutting drum 6, four horizontal pushing hydraulic cylinders 7 are fixedly plugged into the side wall of the chassis 2, and are evenly distributed in a ring shape about the axis of the supporting column 4, the telescopic ends of the four horizontal pushing hydraulic cylinders 7 are commonly fixedly connected to a support ring 8, and a plurality of hanging and pushing assemblies 9 are installed on the side wall of the support ring 8, each hanging and pushing assembly 9 includes a flip shaft 91 rotatably arranged on the side wall of the support ring 8, and the shaft end of the flip shaft 91 is fixedly connected to a flip push plate 92, and a driving mechanism 10 is used to drive each flip shaft 91 to rotate, wherein an explosion-proof battery assembly (not shown in the figure) is installed on the trolley 1, and the trolley 1 is driven electrically and is towed and moved by personnel.

[0032] The support ring 8 is equipped with a driving mechanism 10, which is transmission-connected to each hanging and pushing assembly 9. The driving mechanism 10 includes a rotating ring 101 rotatably arranged on the outer wall of the support ring 8. The outer wall of the support ring 8 is fixedly connected with a hollow ring 102, and the rotating ring 101 is rotationally connected to the inner wall of the hollow ring 102. The outer wall of the hollow ring 102 is fixedly connected with a driving motor 103, and the output end of the driving motor 103 is equipped with a moving gear 104, which is engaged with the outer wall of the rotating ring 101. The shaft wall of each flip shaft 91 is fixedly sleeved with a static gear 105, and the static gear 105 is engaged with the inner wall of the rotating ring 101. The driving motor 103 is electrically connected to the controller 3.

[0033] The center of gravity detection unit 11 is arranged inside the chassis 2 and is used to detect the center of gravity of the cutting drum 6. The center of gravity detection unit 11 includes a synchronous shaft 111 rotatably arranged on the side wall of the chassis 2, and one end of the synchronous shaft 111 is fixedly connected to the side wall of the supporting column 4, and the shaft end of the synchronous shaft 111 is fixedly connected to a synchronous disk 112. The side wall of the chassis 2 on the opposite side of the synchronous shaft 111 is rotatably connected to a detection shaft 113, and the end of the detection shaft 113 is fixedly connected to a detection disk 114, and the eccentric part of the side wall of the detection disk 114 is fixedly connected to a pressure column. 115. The side wall of the synchronization disk 112 is provided with a detection hole 116 that matches the pressure-bearing column 115, and the pressure-bearing column 115 passes through the detection hole 116. The side walls on two opposite sides of the pressure-bearing column 115 are fixedly connected with pressure detectors 117, and the two pressure detectors 117 are both arranged inside the detection hole 116. The pressure detector 117 is electrically connected to the controller 3. The pressure detector 117 can detect pressure and output an electrical signal to the controller 3 when pressure is detected. This is an existing mature technology and will not be elaborated here.

[0034] The center of gravity adjustment unit 12 is installed inside the chassis 2 and is used to adjust the center of gravity of the cutting drum 6. The center of gravity adjustment unit 12 includes a mounting plate 121 fixedly arranged inside the chassis 2, and two vertical push hydraulic cylinders 122 are fixedly plugged into the end face of the mounting plate 121. The telescopic ends of the two vertical push hydraulic cylinders 122 are fixedly connected with tooth plates 123, and the two tooth plates 123 are respectively arranged on both sides of the detection disk 114. The two tooth plates 123 are engaged with the detection disk 114. When the tooth plate 123 moves up, it can drive the detection disk 114 to rotate.

[0035] The jet cleaning unit 13 is installed on the side wall of the support ring 8 and is used to clean the coal slag on the outer wall of the cutting drum 6. The jet cleaning unit 13 includes an annular air cavity 131 opened inside the support ring 8, and the inner wall of the annular air cavity 131 is provided with multiple jet holes 132. The outer wall of the hollow ring 102 is fixedly connected to the air pump 133, and the air outlet end of the air pump 133 is connected to the interior of the annular air cavity 131. The hollow ring 102, the rotating ring 101 and the support ring 8 are rotatably connected to each other through sealed bearings. Cleaning the coal slag by jetting can reduce the influence of the coal slag on the accuracy of the center of gravity adjustment of the cutting drum 6, and is also beneficial to the subsequent repair of the cutting drum 6.

[0036] The outer wall of the hollow ring 102 is fixedly connected to a collecting box 14, and the collecting box 14 is communicated with the suction end of the air pump 133. A filter 15 is installed inside the collecting box 14 at the suction end of the air pump 133. An air inlet 16 is provided on the side wall of the collecting box 14 away from the air pump 133. A discharge port is left on the side wall of the collecting box 14, and a sealing cover is provided at the discharge port for transferring the collected coal dust. The coal dust generated when cleaning the coal slag can be adsorbed as much as possible through the negative pressure suction of the air inlet 16 and the suction end of the air pump 133.

[0037] A plurality of support springs 17 are fixed between the hole wall of the detection hole 116 and the side wall of the pressure column 115. The support springs 17 can support the synchronization disk 112 and the detection disk 114 to ensure the stability between the synchronization disk 112 and the detection disk 114 when no external force is applied.

[0038] The operating principle of the present invention is now described as follows: When disassembling the shearer cutting drum 6, the entire device is moved to the disassembly position of the cutting drum 6, and then the cutting drum 6 is lowered to a preset position by the shearer's cutting arm. The end plate at the front of the cutting drum 6, the cooling pipe, and the locking parts (such as bolts and nuts) connected to the body of the shearer are then removed in sequence. After the cutting drum 6 and the shearer body are in a detachable state, the controller 3 is started;

[0039] The controller 3 will control the four horizontal push hydraulic cylinders 7 to work (a hydraulic station is installed on the trolley 1 to drive the horizontal push hydraulic cylinder 7 and the vertical push hydraulic cylinder 122 to work, and the hydraulic station is controlled by the controller 3). The four horizontal push hydraulic cylinders 7 will drive the support ring 8 to move in the direction of the cutting drum 6. When the horizontal push hydraulic cylinder 7 is working, the controller 3 controls the air pump 133 to start working. The air pump 133 can transport air to the inside of the annular air cavity 131, and the air is ejected through each air jet hole 132 (the hollow ring 102, the rotating ring 101 and the support ring 8 are rotatably connected to each other through sealed bearings, and sealing structures such as sealing rings are also provided to prevent air from leaking from the connection positions of the hollow ring 102, the rotating ring 101 and the support ring 8). The ejected airflow will impact the surface of the cutting drum 6. Under the action of the airflow, the coal slag stuck on the spiral blades and cutting teeth on the surface of the cutting drum 6 will be blown away, so that the coal slag on the surface of the cutting drum 6 can be cleaned up as much as possible, so as to avoid affecting the subsequent precise adjustment of the center of gravity of the cutting drum 6.

[0040] After the horizontal push hydraulic cylinder 7 has been working for 2 minutes, the controller 3 controls the horizontal push hydraulic cylinder 7 to stop working. At this time, each flip push plate 92 moves to the top of the tail end of the cutting drum 6, and the square column 5 is inserted into the hub of the cutting drum 6. Subsequently, the controller 3 controls the drive motor 103 to work for 10 seconds at a time. At this time, the movable gear 104 drives the rotating ring 101 to rotate, and the rotating ring 101 drives the static gear 105 to rotate synchronously, and the static gear 105 drives each flip shaft 91 to rotate 180° in one direction synchronously, so that the flip push plate 92 rotates 180°. At this time, one end of the flip push plate 92 is at the tail side of the cutting drum 6 (refer to Figure 2 , the dotted line portion of the flip push plate 92 in the figure is the position where the flip push plate 92 flips 180 degrees), and then the controller 3 controls each horizontal push hydraulic cylinder 7 to start the return work. Since the horizontal push hydraulic cylinder 7 can apply a horizontal thrust to the cutting drum 6 through the support ring 8, the rotating ring 101, the flip shaft 91 and the flip push plate 92, the cutting drum 6 can be separated from the body of the coal mining machine in the horizontal direction. As the cutting drum 6 separates from the body of the coal mining machine, the outline of the cutting drum 6 will be stuck on the outside of the square column 5. After the horizontal push hydraulic cylinder 7 has worked for 1 minute, the cutting drum 6 will be stuck on the outside of the support column 4. At this time, the cutting drum 6 is separated from the body of the coal mining machine.

[0041] When the cutting drum 6 is separated from the coal mining machine body, the spiral blades, cutting teeth and other components of the cutting drum 6 and the outer wall of the cutting drum 6 will be unevenly worn due to the uneven friction of the cutting drum 6 during operation. At this time, the center of gravity of the cutting drum 6 will be offset, and when the position with the largest mass of the cutting drum 6 is not at the bottom, the position with the largest mass of the cutting drum 6 will rotate toward the bottom under the action of gravity. Since the cutting drum 6 and its own hub are clamped on the square column 5 and the supporting column 4, the cutting drum 6 needs to rotate synchronously with the synchronous shaft 111 and the synchronous disk 112. Moreover, because the pressure column 115 of the detection disk 114 passes through the detection of the synchronous disk 112, the cutting drum 6 needs to rotate synchronously with the synchronous shaft 111 and the synchronous disk 112. Hole 116, and the detection disk 114 is meshed with the two tooth plates 123. Therefore, after the cutting drum 6 is separated from the coal mining machine body, the cutting drum 6 cannot rotate under the action of its own center of gravity. However, due to the center of gravity of the cutting drum 6, the synchronous disk 112 will apply pressure to one side in the rotation direction through the detection hole 116, and the pressure detector 117 on this side will detect the pressure and output an electrical signal to the controller 3. When the controller 3 receives the pressure applied by the pressure detector 117, the controller 3 will immediately control the vertical push hydraulic cylinder 122 on the same side of the pressure detector 117 to start output work, and control the vertical push hydraulic cylinder 122 on the other side to perform timed Return work (initially, the telescopic ends of the two vertical push hydraulic cylinders 122 are extended by 3 cm to make the tooth plate 123 contact with the teeth of the detection disk 114 to prevent the detection disk 114 from rotating. After controlling the vertical push hydraulic cylinder 122 on that side to perform timed return work, the tooth plate 123 on that side can be prevented from affecting the normal rotation of the detection disk 114), and the upward tooth plate 123 will push the detection disk 114 to start rotating. The detection disk 114 can drive the supporting column 4 and the square column 5 to drive the cutting drum 6 to start rotating slowly through the pressure column 115, the detection hole 116, the synchronous disk 112 and the synchronous shaft 111. When the detection disk 114 rotates a certain angle, the cutting drum 6 The position with the largest mass will rotate to the bottom. At this time, since the position with the largest mass of the cutting drum 6 is at the bottom, the cutting drum 6 will not generate a rotational force to both sides. At this time, the detection hole 116 will not apply pressure to the two pressure detectors 117, so the electrical signal output by the pressure detector 117 to the controller 3 disappears. At this time, the controller 3 controls the vertical push hydraulic cylinder 122 on this side to stop working. At this point, the adjustment of the center of gravity of the cutting drum 6 is completed, and then the trolley 1 is moved to transport the cutting drum 6 out. Since the position with the largest mass of the cutting drum 6 is at the bottom, the cutting drum 6 is not prone to shaking when the trolley 1 is moved, thereby improving the stability of the cutting drum 6 when it is transported out.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A large-component auxiliary disassembly tool for a coal mining machine, comprising a trolley (1) and a chassis (2) mounted on the top of the trolley (1), wherein a controller (3) is mounted on the side wall of the chassis (2), characterized in that: Also includes: A supporting column (4) is provided on one side of the chassis (2), a square column (5) is fixedly mounted on the end of the supporting column (4), and the supporting column (4) and the square column (5) are used to support the cutting drum (6); Four horizontal push hydraulic cylinders (7) are fixedly plugged into the side walls of the chassis (2) and are evenly distributed in a ring shape about the axis of the supporting column (4). The telescopic ends of the four horizontal push hydraulic cylinders (7) are fixedly connected to a support ring (8). The side walls of the support ring (8) are equipped with a plurality of hanging push assemblies (9). The support ring (8) is equipped with a driving mechanism (10). The driving mechanism (10) is in transmission connection with each hanging push assembly (9). A center of gravity detection unit (11), arranged inside the chassis (2), for detecting the center of gravity of the cutting drum (6); A center of gravity adjustment unit (12), installed inside the chassis (2), for adjusting the center of gravity of the cutting drum (6); An air jet cleaning unit (13) is mounted on the side wall of the support ring (8) and is used to clean the coal slag on the outer side wall of the cutting drum (6); Each of the hanging and pushing assemblies (9) includes a flip shaft (91) rotatably arranged on the side wall of the support ring (8), and the shaft end of the flip shaft (91) is fixedly connected to a flip push plate (92), and the driving mechanism (10) is used to drive each flip shaft (91) to rotate; The center of gravity detection unit (11) includes a synchronous shaft (111) rotatably arranged on the side wall of the chassis (2), and one end of the synchronous shaft (111) is fixedly connected to the side wall of the supporting column (4), and the shaft end of the synchronous shaft (111) is fixedly connected to a synchronous disk (112), and the side wall of the chassis (2) opposite to the synchronous shaft (111) is rotatably connected to a detection shaft (113), and the end of the detection shaft (113) is fixedly connected to a detection disk (114), and the side of the detection disk (114) is fixedly connected to the detection disk (114). A pressure-bearing column (115) is fixedly connected to the eccentric portion of the wall, a detection hole (116) matching the pressure-bearing column (115) is opened on the side wall of the synchronization disk (112), and the pressure-bearing column (115) passes through the detection hole (116), and the side walls on two opposite sides of the pressure-bearing column (115) are fixedly connected to pressure detectors (117), and the two pressure detectors (117) are both arranged inside the detection hole (116), and the pressure detectors (117) are electrically connected to the controller (3); The center of gravity adjustment unit (12) includes a mounting plate (121) fixedly arranged inside the chassis (2), and two vertical push hydraulic cylinders (122) are fixedly plugged into the end surface of the mounting plate (121), and the telescopic ends of the two vertical push hydraulic cylinders (122) are fixedly connected to tooth plates (123), and the two tooth plates (123) are respectively arranged on both sides of the detection disk (114), and the two tooth plates (123) are meshed with the detection disk (114).

2. A large-component auxiliary disassembly tool for a coal mining machine according to claim 1, characterized in that: The driving mechanism (10) includes a rotating ring (101) rotatably arranged on the outer wall of the support ring (8), the outer wall of the support ring (8) is fixedly connected to a hollow ring (102), and the rotating ring (101) is rotatably connected to the inner wall of the hollow ring (102), the outer wall of the hollow ring (102) is fixedly connected to a driving motor (103), and the output end of the driving motor (103) is installed with a moving gear (104), the moving gear (104) is meshed with the outer wall of the rotating ring (101), the shaft wall of each of the flip shafts (91) is fixedly sleeved with a static gear (105), and the static gear (105) is meshed with the inner wall of the rotating ring (101), and the driving motor (103) is electrically connected to the controller (3).

3. A large-component auxiliary disassembly tool for a coal mining machine according to claim 2, characterized in that: The jet cleaning unit (13) comprises an annular air cavity (131) provided inside the support ring (8), and a plurality of jet holes (132) are provided on the inner wall of the annular air cavity (131). An air pump (133) is fixedly connected to the outer wall of the hollow ring (102), and an air outlet end of the air pump (133) is communicated with the interior of the annular air cavity (131). The hollow ring (102), the rotating ring (101) and the support ring (8) are rotatably connected to each other via a sealed bearing.

4. A large-component auxiliary disassembly tool for a coal mining machine according to claim 3, characterized in that: The outer wall of the hollow ring (102) is fixedly connected to a collecting box (14), and the collecting box (14) is connected to the air suction end of the air pump (133). A filter (15) is installed inside the collecting box (14) at the air suction end of the air pump (133). An air inlet (16) is provided on the side wall of the collecting box (14) away from the air pump (133).

5. The large-component auxiliary disassembly tool for coal mining machines according to claim 1, characterized in that: A plurality of support springs (17) are fixedly provided between the hole wall of the detection hole (116) and the side wall of the pressure-bearing column (115).

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