Thrust bearing pad extraction device

Abstract

The present invention relates to the technical field of generator maintenance. Disclosed is a thrust bearing pad extraction device. The thrust bearing pad extraction device comprises: a mounting unit comprising a circumferential inner rail and a circumferential outer rail disposed outside of the circumferential inner rail, and an assembling assembly disposed on the circumferential inner rail and the circumferential outer rail; an extraction unit comprising a radial slide rail, and a sliding assembly disposed on the radial slide rail and fitting with the circumferential inner rail and the circumferential outer rail; and a track-shifting unit comprising track-shifting grooves disposed on the radial slide rail, the circumferential inner rail and the circumferential outer rail. In the mechanism, by providing a transmission unit that enables the sliding assembly and an adjustment assembly to fit with each other, the electromagnetic field direction of a pallet is opposite to the magnetic force direction of the slide rail, resulting in magnetic repulsion, which allows a push plate to move along a track with a gentle push, thereby reducing manual effort and improving maintenance efficiency; and by providing the assembling assembly, a plurality of circumferential tracks can be mounted on the basis of varying thrust bearing pad positions, thus enhancing the flexibility of the device.

Description

A thrust tile extraction device Technical Field

[0001] The present invention relates to the technical field of generator maintenance, and in particular to a thrust shoe extraction device. Background Art

[0002] The thrust bearing of the turbine generator set is the main load-bearing bearing of the set. During the maintenance of the set, the thrust bearing needs to be pulled out if it is necessary to inspect or replace the thrust bearing.

[0003] Traditional tile extraction tools and methods have significant limitations. For example, when using a roller-mounted tile extraction trolley for tile extraction, the narrow space inside the oil tank makes circumferential movement of the trolley very inconvenient and can cause collisions. Furthermore, when extracting thrust tiles that are not facing the oil tank window, the thrust tiles need to be manually moved to the trolley, and then the tiles need to be pushed out using a crane. This type of tile extraction tool and method requires a large amount of manpower and material resources, is cumbersome to operate, and is time-consuming. However, with the increasing demand for large-scale hydropower generators, this method can no longer meet the current needs of tile extraction.

[0004] Summary of the Invention

[0005] In view of the above-mentioned problems existing in the existing thrust shoe extraction device, the present invention is proposed.

[0006] Therefore, the present invention provides a thrust shoe extraction device, the purpose of which is to solve the problem that the shoe extraction trolley is very inconvenient when moving in the circumferential direction and requires manual transportation and movement.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a thrust shoe extraction device, comprising an installation unit, a shoe extraction unit and a track changing unit.

[0008] Among them, the installation unit includes a circumferential inner rail, a circumferential outer rail arranged on the outside of the circumferential inner rail, and a splicing component arranged on the circumferential inner rail and the circumferential outer rail; the tile extraction unit includes a radial slide rail, a sliding component arranged on the radial slide rail and matched with the circumferential inner rail and the circumferential outer rail; the track changing unit includes a track changing groove arranged on the radial slide rail, the circumferential inner rail and the circumferential outer rail, and an adjustment component arranged in the track changing groove.

[0009] As a preferred solution of the thrust shoe extraction device described in the present invention, the splicing assembly includes a fixing groove arranged on one side of the circumferential inner rail and the circumferential outer rail, a displacement groove arranged on the other side of the circumferential inner rail and the circumferential outer rail, a rotating rod arranged in the displacement groove, an extrusion cone arranged on the rotating rod, and a fixing part arranged in the displacement groove; the extrusion cone and the fixing part cooperate with each other.

[0010] As a preferred solution of the thrust shoe extraction device described in the present invention, the fixing part includes a fixing block arranged in the displacement groove, a reset groove arranged in the fixing block, an extrusion block arranged in the reset groove, a limiting plate arranged on the extrusion block, a first spring arranged on the limiting plate, and a clamping block arranged on the other side of the fixed block; the clamping block is rotatably connected to one side of the fixing block, and the clamping block and the extrusion block cooperate with each other.

[0011] As a preferred solution of the thrust shoe extraction device described in the present invention, the sliding assembly includes a support plate arranged on the radial slide rail, a connecting block arranged at the lower end of the support plate, an electromagnetic induction part arranged in the support plate, and a guide part arranged on the connecting block.

[0012] As a preferred solution of the thrust shoe extraction device described in the present invention, the electromagnetic induction part includes an electromagnetic slot arranged in the support plate, an iron core arranged on the inner wall of the electromagnetic slot, an electromagnetic coil arranged on the iron core, a lithium battery arranged on the iron core, and a power interface arranged on the outside of the support plate.

[0013] As a preferred solution of the thrust shoe extraction device described in the present invention, the guide portion includes a circular hole arranged on the connecting block, a second spring arranged at the bottom of the circular hole, and a guide wheel arranged on the second spring.

[0014] As a preferred solution of the thrust shoe extraction device described in the present invention, the adjustment component includes a rotating seat arranged on one side of the track change groove, a rotating plate arranged on the rotating seat, a displacement part arranged in the rotating plate, an extrusion part arranged on the rotating plate, and a rebound part arranged in the track change groove and coordinated with the rotating seat.

[0015] As a preferred solution of the thrust shoe extraction device described in the present invention, the displacement part includes a movable groove arranged inside the rotating plate, a third spring arranged inside the movable groove, a limiting strip arranged on the third spring, and a trapezoidal groove arranged on the limiting strip; the limiting strip and the extrusion part cooperate with each other.

[0016] As a preferred solution of the thrust shoe extraction device described in the present invention, the extrusion part includes an extrusion groove arranged on the inner wall of the movable groove, a fourth spring arranged at the bottom of the extrusion groove, and an extrusion rod arranged on the fourth spring; the extrusion rod and the connecting block are matched, one end of the extrusion rod is inclined and matched with the inclined surface of the trapezoidal groove.

[0017] As a preferred solution of the thrust shoe extraction device described in the present invention, the rebound part includes a connecting rod arranged in the rotating seat, a torsion spring arranged outside the connecting rod, and a limiting groove arranged on the other side of the track changing groove; the limiting groove and the limiting bar cooperate with each other.

[0018] The beneficial effects of the present invention are as follows: the sliding assembly and the adjusting assembly can cooperate with each other, the direction of the electromagnetic field of the support plate is opposite to the direction of the magnetic field force of the slide rail, the magnetic field forces repel each other, and a slight push can make the push plate move along the track, reducing the manpower burden and improving maintenance efficiency. By setting the splicing assembly, several circumferential tracks can be installed according to the changes in the position of the thrust pad, thereby improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] FIG1 is a schematic diagram of the overall structure of the thrust shoe extraction device of the present invention.

[0021] FIG2 is a schematic cross-sectional view of the structure of the splicing components in the thrust shoe extraction device of the present invention.

[0022] FIG3 is an enlarged schematic diagram of point B in FIG2 of the present invention.

[0023] FIG4 is a schematic cross-sectional view of the structure of the splicing components in the thrust shoe extraction device of the present invention.

[0024] FIG5 is a schematic diagram of the guide structure of the thrust shoe extraction device of the present invention.

[0025] FIG6 is a schematic cross-sectional view of the guide structure in the thrust shoe extraction device of the present invention.

[0026] FIG7 is a schematic cross-sectional view of the support plate in the thrust shoe extraction device of the present invention.

[0027] FIG8 is an enlarged schematic diagram of point A in FIG1 of the present invention.

[0028] FIG9 is a schematic diagram of the disassembly of the rebound structure of the thrust shoe extraction device of the present invention.

[0029] FIG10 is a schematic cross-sectional view showing the movement of the adjustment assembly in the thrust shoe and shoe extraction device of the present invention.

[0030] FIG11 is a plan view showing the movement of the support plate in the thrust shoe extraction device of the present invention. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] Example 1, referring to Figures 5-7, is the first embodiment of the present invention, which provides a thrust shoe extraction device, including a shoe extraction unit 200, a radial slide rail 201, and a sliding assembly 202 arranged on the radial slide rail 201 and cooperating with the circumferential inner rail 101 and the circumferential outer rail 102.

[0033] Among them, the sliding assembly 202 includes a support plate 202a arranged on the radial slide rail 201, a connecting block 202b arranged at the lower end of the support plate 202a, an electromagnetic induction part 202c arranged in the support plate 202a, and a guide part 202d arranged on the connecting block 202b. The support plate 202a is a cube. The cube support plate 202a structure can provide a larger bearing area, which can stably bear the weight of the thrust washer and maintain balance. Four connecting blocks 202b are arranged at the four corners below the support plate 202a. A circular hole 202d-1 is opened on the opposite surfaces of each of the four connecting blocks 202b. A second spring 202d-2 is fixedly connected to the bottom of the circular hole 202d-1. The other end of the second spring 202d-2 is fixedly connected to the guide wheel 202d-3. The guide wheel 202d-3 can move freely inside the circular hole 202d-1.

[0034] Furthermore, the interior of the support plate 202a includes an electromagnetic slot 202c-1, which houses an iron core 202c-2. Both ends of the iron core 202c-2 are fixedly connected to the inner wall of the electromagnetic slot 202c-1. An electromagnetic coil 202c-3 is wound around the exterior of the iron core 202c-2. One end of the electromagnetic coil 202c-3 is connected to a lithium battery 202c-4. The lithium battery 202c-4 serves as a power source, continuously supplying power to the electromagnetic coil 202c-3. A power port 202c-5 is provided for charging, conveniently recharging the lithium battery 202c-4 to maintain sufficient power. This allows the suspension function of the support plate 202a to operate anywhere without being restricted by an external power supply.

[0035] During use, after the power interface 202c-5 is powered on, the lithium battery 202c-4 stores energy. During maintenance, the support plate 202a is placed at one end of the radial slide rail 201, the switch of the lithium battery 202c-4 is turned on, and the electromagnetic coil 202c-3 is directly charged. The AC power supply is connected and the current passes through the electromagnetic coil 202c-3. A magnetic field is generated around the coil to form a surrounding magnetic field. The presence of the iron core 202c-2 can concentrate and enhance the magnetic field. Iron is a magnetic material with good conductivity. Magnetism, the direction of the electromagnetic field is opposite to the direction of the magnetic field force of the slide rail, and the magnetic field forces repel each other. The support plate 202a moves upward and floats on the radial slide rail 201, lifting the thrust shoe. A slight push can make the thrust shoe move along the track. Through the extension elastic force of the second spring 202d-2, the guide wheel 202d-3 always extends outward and close to the slide rail. At the same time, the second spring 202d-2 makes the guidance of the support plate 202a adaptive when it runs on the circular track, which solves the problem of the existing difficulty in pushing the support plate 202a by manpower.

[0036] Example 2, referring to Figures 8-11, is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: a track changing unit 300 includes a track changing groove 301 arranged on the radial slide rail 201, the circumferential inner rail 101, and the circumferential outer rail 102, and an adjustment component 302 arranged in the track changing groove 301.

[0037] Furthermore, the adjustment component 302 includes a rotating seat 302a arranged on one side of the track changing groove 301, a rotating plate 302b arranged on the rotating seat 302a, a displacement portion 302c arranged in the rotating plate 302b, an extrusion portion 302d arranged on the rotating plate 302b, and a rebound portion 302e arranged in the track changing groove 301 and matched with the rotating seat 302a. The radial slide rail 201, the circumferential inner rail 101 and the circumferential inner rail 101 are all provided with two track changing grooves 301. A rotating seat 302a is provided on one side of the inner wall of the track changing groove 301, and two limiting grooves 302e-3 are provided on the other side. The internal rotation of the rotating seat 302a is connected to a connecting rod 302e-1, and the connecting rod 30 The outside of 2e-1 is rotatably connected to a rotating plate 302b, and one side of the rotating plate 302b is arranged at the upper and lower ends of the rotating seat 302a. One end of the connecting rod 302e-1 passes through the rotating seat 302a and the rotating plate 302b, and its two ends are rotatably connected to the upper and lower sides of the inner wall of the track changing groove 301 respectively. A torsion spring 302e-2 is arranged on the outside of the connecting rod 302e-1, and the two ends of the torsion spring 302e-2 are fixedly connected to the inside of the rotating plate 302b. The torsion spring 302e-2 forms a spiral structure near the two ends, which is sleeved on the connecting rod 302e-1 near the two ends and rotatably connected to the inside of one side of the rotating plate 302b. The straight part in the middle of the torsion spring 302e-2 is connected to the inside of the rotating seat 302a.

[0038] Furthermore, a movable groove 302c-1 is provided at the upper and lower positions inside the rotating plate 302b, and a third spring 302c-2 is fixedly connected to one side of the inner wall of the movable groove 302c-1. The other end of the third spring 302c-2 is fixedly connected to a limit bar 302c-3, and the limit bar 302c-3 matches the movable groove 302c-1. The limit bar 302c-3 is slidably connected to the movable groove 302c-1, and the other end of the limit bar 302c-3 passes through the other side of the rotating plate 302b and is movably connected to the limit groove 302e-3. A trapezoidal groove 302c-4 is provided on the front surface of the two limit bars 302c-3, and an extrusion groove 302d-1 is provided on the top surface of the inner wall of the movable groove 302c-1, which is located directly above the trapezoidal groove 302c-4. The fourth spring 302d-2 is fixedly connected to the inside of the extrusion groove 302d-1, and the other end of the fourth spring 302d-2 is fixedly connected to the extrusion rod 302d-3. The rear surface of the extrusion rod 302d-3 is inclined and remains parallel to the inclined surface of the trapezoidal groove 302c-4, and the rear of the extrusion rod 302d-3 is always kept in contact with the inclined surface of the trapezoidal groove 302c-4.

[0039] During use, the support plate 202a is suspended on the radial slide rail 201 through the sliding component 202, and the staff can gently push the support plate 202a to slide on the radial slide rail 201. The guide wheel 202d-3 at the lower end of the support plate 202a is always in contact with the outer side of the radial slide rail 201 through the first spring 103e-5, and slowly moves toward the circumferential inner rail 101. The guide wheels 202d-3 arranged on the opposite surfaces of the two connecting blocks 202b at the bottom of the support plate 202a close to the circumferential inner rail 101 will first contact the rotating plate 302b, and will apply pressure to the extrusion rod 302d-3 located near the upper end of the rotating plate 302b, so that the extrusion rod 302d-3 applies pressure to the fourth spring 302d-2, causing it to press into the extrusion groove 302d -1 contracts internally, and the squeezing rod 302d-3 now applies a downward oblique force to the inclined surface of the trapezoidal groove 302c-4. As the squeezing rod 302d-3 continues to move, the limit bar 302c-3 moves to one side, and applies pressure to one side on the third spring 302c-2 to cause it to contract. The other end of the limit bar 302c-3 will disengage from the limit groove 302e-3. As the support plate 202a continues to move, the guide wheel 202d-3 will pass over the squeezing rod 302d-3 and continue to fit the outer side of the radial slide rail 201. At this time, the squeezing rod 302d-3 no longer has the pressure applied by the guide wheel 202d-3, and moves outward by the stretching elastic force of the fourth spring 302d-2. The limit bar 302c-3 no longer has the squeezing force applied to it. The oblique force applied by the rod 302d-3 will push the limiting bar 302c-3 to move to the other side through the extension elastic force of the third spring 302c-2, and re-limit it in the limiting groove 302e-3. As the supporting plate 202a continues to move, the front surfaces of the two connecting blocks 202b at the bottom of the supporting plate 202a close to the circumferential inner rail 101 will contact the rotating plate 302b arranged on the circumferential inner rail 101. Because the contact surface of the front surface of the connecting block 202b is large, it can completely cover the two extrusion rods 302d-3 arranged on one rotating plate 302b. As the supporting plate 202a continues to move, the front portions of the two connecting blocks 202b will simultaneously squeeze the two extrusion rods 302d-3 of the two rotating plates 302b, which will make The two extrusion rods 302d-3 drive the two limit bars 302c-3 to disengage from the limit grooves 302e-3 at the same time. At this time, the rotating plate 302b is no longer limited by the limit bar 302c-3, and the rotation effect is achieved. The connecting block 202b will push the rotating plate 302b to move, causing the two rotating plates 302b on the circumferential inner rail 101 to rotate clockwise around the connecting rod 302e-1. At this time, the torsion spring 302e-2 is twisted to store elastic energy. Similarly, as the supporting plate 202a continues to move, the front connecting block 202b will squeeze the extrusion rods 302d-3 of the two rotating plates 302b of the circumferential outer rail 102, and cause the two rotating plates 302b of the circumferential outer rail 102 to rotate.At this time, the rotating plate 302b of the circumferential inner rail 101 no longer has the thrust brought by the movement of the connecting block 202b, and the extrusion rod 302d-3 and the limit bar 302c-3 will return to their original state. At this time, the torsion spring 302e-2 is no longer subjected to the torsional force brought by the rotating plate 302b, and it will release energy and return to its original state, driving the rotating plate 302b to rotate counterclockwise to return to its original state. At this time, the limit bar 302c-3 will contact the other side surface of the track changing groove 301. As the rotating plate 302b rotates, the limit bar 302c-3 is squeezed and moves to one side, and exerts pressure on the third spring 302c-2, expanding and contracting to one side. As the torsion spring 302e-2 drives the rotating plate 302b to return to its original position, the limit bar 302c-3 at this time is re-engaged by the extension elastic force of the third spring 302c-2. When the new limit is in the limit groove 302e-3, the front guide wheels 202d-3 of the two connecting blocks 202b at the rear position below the support plate 202a contact the two rotating plates 302b located on the circumferential inner rail 101, and the movement can be stopped. At this time, the support plate 202a can move on the circumferential track, and the guide wheels 202d-3 at the bottom of the support plate 202a will always fit the inner side of the circumferential inner rail 101 and the outer side of the circumferential outer rail 102, playing a guiding role. When the support plate 202a starts to move in the circumferential track, the connecting block 202b at the rear will push the two rotating plates 302b on the radial slide rail 201 in turn to move, thereby solving the problem of how to quickly change tracks at the intersection of the existing radial slide rail 201, the circumferential inner rail 101 and the circumferential outer rail 102.

[0040] The remaining structures are the same as those of Example 1.

[0041] Example 3, referring to Figures 1 to 4, is the third embodiment of the present invention. This embodiment is different from the second embodiment in that it includes a splicing assembly 103 including a fixing groove 103a arranged on one side of the circumferential inner rail 101 and the circumferential outer rail 102, a displacement groove 103b arranged on the other side of the circumferential inner rail 101 and the circumferential outer rail 102, a rotating rod 103c arranged in the displacement groove 103b, an extrusion cone 103d arranged on the rotating rod 103c, and a fixing portion 103e arranged in the displacement groove 103b; the extrusion cone 103d and the fixing portion 103e cooperate with each other.

[0042] Compared with Example 2, further, one side surface of the circumferential inner rail 101 and the circumferential outer rail 102 is provided with a fixing groove 103a, and the fixing groove 103a is trapezoidal. The other side surfaces of the circumferential inner rail 101 and the circumferential outer rail 102 are provided with a displacement groove 103b. The inner side of the circumferential inner rail 101 and the outer side of the circumferential outer rail 102 are provided with a rotating rod 103c, and the other end of the rotating rod 103c is provided with a thread, and the rotating rod 103c passes through the displacement groove 103b and is threadedly connected to the inner wall of the displacement groove 103b. The outside of the rotating rod 103c is located inside the displacement groove 103b and an extrusion cone 103d is provided. A fixing block 103e-1 is fixedly installed on one side of the displacement groove 103b, and a reset groove 103e-1 is provided inside the fixing block 103e-1. 03e-2, the central movably connected to the reset groove 103e-2 is an extrusion block 103e-3, the other side of the extrusion block 103e-3 is in the shape of an inclined surface, and one side thereof is in the shape of a trapezoid, narrow in front and wide in the back, which makes the surface of one side of the extrusion block 103e-3 at the front and rear parts present an inclined surface, and the upper and lower parts of the extrusion block 103e-3 are fixedly connected to the limiting plate 103e-4, and one side of the limiting plate 103e-4 is fixedly connected to the first spring 103e-5, and the other end of the first spring 103e-5 is fixedly connected to the inner wall of the reset groove 103e-2, and one side of the fixed block 103e-1 is located at the front and rear parts and is rotatably connected to the clamping block 103e-6 through the rotating shaft, and the opposite surfaces of the two clamping blocks 103e-6 are both in contact with the inclined surface of the extrusion block 103e-3.

[0043] During use, first insert the fixing block 103e-1 on the other side of the circumferential inner rail 101 and the circumferential outer rail 102 of the other group into the fixing groove 103a on one side of the circumferential inner rail 101 and the circumferential outer rail 102 in sequence, and the surfaces of the two are tightly fitted. At this time, rotate the rotating rod 103c clockwise, and the rotating rod 103c moves toward the inner side of the inner wall of the displacement groove 103b, driving the extrusion cone 103d to move inside the displacement groove 103b. As the outer inclined surface of the extrusion cone 103d fits the extrusion block 103e-3 and presses the extrusion block 103e-3 As the rotating rod 103c continues to rotate, the extrusion cone 103d pushes the extrusion block 103e-3 to move in the reset groove 103e-2, and the extrusion block 103e-3 drives the limit plate 103e-4 to move, and applies a pulling force to the first spring 103e-5, causing it to deform and extend to the other side. As the extrusion block 103e-3 moves to the other side, the front and rear parts of the extrusion block 103e-3 will apply a thrust to the clamping block 103e-6, causing the clamping block 103e-6 to rotate around the rotating shaft. When the rotating rod 103c When it reaches the bottom and cannot continue to rotate, the extrusion cone 103d drives the extrusion block 103e-3 to push the clamping block 103e-6. At this time, the outer sides of the two clamping blocks 103e-6 will fit into the inner wall of the fixing groove 103a. The trapezoidal fixing groove 103a can provide a larger contact area, thereby increasing the contact density between the clamping block 103e-6 and the fixing groove 103a, and improving the overall stability. This helps to reduce looseness and vibration, and improve the fixed connection relationship between the two sets of circumferential inner rails 101 and the circumferential outer rails 102, which will solve the problem of how to move the thrust pad to the corresponding pumping pad window because the thrust pad position of the existing oil tank window is asymmetrical with the track position.

[0044] The remaining structures are the same as those of Example 2.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A thrust shoe extraction device, characterized in that: include, The mounting unit (100) comprises a circumferential inner rail (101), a circumferential outer rail (102) arranged outside the circumferential inner rail (101), and a splicing assembly (103) arranged on the circumferential inner rail (101) and the circumferential outer rail (102); The tile extraction unit (200) comprises a radial slide rail (201), a sliding assembly (202) arranged on the radial slide rail (201) and cooperating with a circumferential inner rail (101) and a circumferential outer rail (102); The track changing unit (300) comprises a track changing groove (301) arranged on the radial slide rail (201), the circumferential inner rail (101), and the circumferential outer rail (102), and an adjustment component (302) arranged in the track changing groove (301).

2. The thrust shoe extraction device according to claim 1, characterized in that: The splicing assembly (103) comprises a fixing groove (103a) provided on one side of the circumferential inner rail (101) and the circumferential outer rail (102), a displacement groove (103b) provided on the other side of the circumferential inner rail (101) and the circumferential outer rail (102), a rotating rod (103c) provided in the displacement groove (103b), an extrusion cone (103d) provided on the rotating rod (103c), and a fixing portion (103e) provided in the displacement groove (103b); The extrusion cone (103d) and the fixing portion (103e) are matched with each other.

3. The thrust shoe extraction device according to claim 2, characterized in that: The fixing portion (103e) comprises a fixing block (103e-1) arranged in the displacement groove (103b), a reset groove (103e-2) arranged in the fixing block (103e-1), an extrusion block (103e-3) arranged in the reset groove (103e-2), a limiting plate (103e-4) arranged on the extrusion block (103e-3), a first spring (103e-5) arranged on the limiting plate (103e-4), and a clamping block (103e-6) arranged on the other side of the fixing block (103e-1); The clamping block (103e-6) is rotatably connected to one side of the fixed block (103e-1), and the clamping block (103e-6) and the extrusion block (103e-3) cooperate with each other.

4. The thrust shoe extraction device according to any one of claim 1, characterized in that: The sliding assembly (202) comprises a supporting plate (202a) arranged on the radial slide rail (201), a connecting block (202b) arranged at the lower end of the supporting plate (202a), an electromagnetic induction part (202c) arranged in the supporting plate (202a), and a guide part (202d) arranged on the connecting block (202b).

5. The thrust shoe extraction device according to claim 4, characterized in that: The electromagnetic induction part (202c) comprises an electromagnetic slot (202c-1) arranged in the support plate (202a), an iron core (202c-2) arranged on the inner wall of the electromagnetic slot (202c-1), an electromagnetic coil (202c-3) arranged on the iron core (202c-2), a lithium battery (202c-4) arranged on the iron core (202c-2), and a power supply interface (202c-5) arranged outside the support plate (202a).

6. The thrust shoe extraction device according to claim 5, characterized in that: The guide portion (202d) includes a circular hole (202d-1) provided on the connecting block (202b), a second spring (202d-2) provided at the bottom of the circular hole (202d-1), and a guide wheel (202d-3) provided on the second spring (202d-2).

7. The thrust shoe extraction device according to claim 6, characterized in that: The adjustment assembly (302) comprises a rotating seat (302a) arranged on one side of the track change groove (301), a rotating plate (302b) arranged on the rotating seat (302a), a displacement portion (302c) arranged in the rotating plate (302b), an extrusion portion (302d) arranged on the rotating plate (302b), and a rebound portion (302e) arranged in the track change groove (301) and matched with the rotating seat (302a).

8. The thrust shoe extraction device according to any one of claim 7, characterized in that: The displacement portion (302c) comprises a movable groove (302c-1) disposed inside the rotating plate (302b), a third spring (302c-2) disposed inside the movable groove (302c-1), a limiting strip (302c-3) disposed on the third spring (302c-2), and a trapezoidal groove (302c-4) disposed on the limiting strip (302c-3); The limiting strip (302c-3) and the extrusion portion (302d) cooperate with each other.

9. The thrust shoe extraction device according to claim 8, characterized in that: The extrusion portion (302d) comprises an extrusion groove (302d-1) arranged on the inner wall of the movable groove (302c-1), a fourth spring (302d-2) arranged at the bottom of the extrusion groove (302d-1), and an extrusion rod (302d-3) arranged on the fourth spring (302d-2); The extrusion rod (302d-3) is matched with the connection block (202b); one end of the extrusion rod (302d-3) is in the shape of an inclined surface and is matched with the inclined surface of the trapezoidal groove (302c-4).

10. The thrust shoe extraction device according to claim 7, characterized in that: The rebound portion (302e) includes a connecting rod (302e-1) arranged in the rotating seat (302a), a torsion spring (302e-2) arranged outside the connecting rod (302e-1), and a limiting groove (302e-3) arranged on the other side of the inner wall of the track-changing groove (301); The limiting groove (302e-3) and the limiting strip (302c-3) cooperate with each other.

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