Dismounting device for back arc cushion block of thrust pad

Abstract

The utility model discloses a thrust pad back arc cushion block dismounting device, which belongs to the technical field of steam turbine maintenance, and comprises a pin pulling sleeve, one end of the pin pulling sleeve is provided with an end plate, one side of the pin pulling sleeve far away from the end plate is provided with a cavity matched with the peripheral surface of a back arc cushion block, the end plate is provided with at least two groups of annular and uniformly distributed through holes, and the through holes are communicated with the cavity. And a first connecting piece which can be fixed with the end plate and the back arc cushion block is arranged on the through hole in a penetrating manner. The proper cavity in the pin pulling sleeve can be buckled with the back arc cushion block on the thrust pad, and due to the fact that the pin pulling sleeve is buckled with the back arc cushion block, the coaxiality of the pin pulling sleeve and the back arc cushion block is guaranteed, and the direction of pulling out the back arc cushion block is guaranteed. Besides, the pull pin sleeve buckles the back arc cushion block, so that the pull pin sleeve plays a role in isolating and protecting the edge of the top of the back arc cushion block in the pull-out process, and the back arc cushion block is prevented from being greatly abraded on the thrust pad.

Description

Technical Field

[0001] This utility model relates to a disassembly tool, and more specifically, to a thrust bearing back arc pad disassembly device. Background Technology

[0002] Steam turbines, as crucial power equipment, play a vital role in industrial production. Thrust bearing pads are an important component of steam turbines, and their disassembly and maintenance are essential for their normal operation. However, traditional methods for disassembling thrust bearing pads have many problems, such as being laborious and prone to damaging components, severely impacting maintenance efficiency and equipment reliability. In the past, the common method for disassembling steam turbine thrust bearing pads involved screwing on a few bolts and then pulling them out by hand. This method not only requires a great deal of force but is also prone to deviation during the pulling process, causing the pads to become misaligned and stuck, or even damaging the equipment.

[0003] For example, Chinese Patent Publication No. CN205904945U, published on January 25, 2017, is entitled "A Tool for Disassembling Thruster Pad Covers." It includes a main body rod and a sliding impact part. The main body rod has a connecting part and a force-receiving part. The sliding impact part is slidably mounted on the main body rod and located between the connecting part and the force-receiving part. By sliding the sliding impact part, it can impact the force-receiving part to apply an axial force, thereby applying a disassembly pull force to the cover connected to the connecting part. The cover is stably connected to the thrust pad through the connecting part, and the sliding impact part can impact the force-receiving part to transmit the axial pull force to the cover, gradually pulling the cover away from the thrust pad. However, when disassembling the cover, such a disassembly device is prone to misaligning the cover on the thrust pad, causing significant wear on the edge or outer periphery of the cover after it is pulled out. Utility Model Content

[0004] This invention overcomes the wear problem caused by existing disassembly tools when disassembling the back arc pad on the thrust bearing; it provides a thrust bearing back arc pad disassembly device, which can prevent the back arc pad from tilting and reduce the wear degree when the back arc pad is removed.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a thrust bearing back arc pad disassembly device, including a pull pin sleeve, one end of which is provided with an end plate, and the side of the pull pin sleeve away from the end plate is provided with a cavity adapted to the outer peripheral surface of the back arc pad, and the end plate is provided with at least two sets of annularly evenly distributed through holes, and a first connecting member that can be fixed to the end plate and the back arc pad is provided through the through holes. The suitable cavity inside the pull pin sleeve can engage with the back arc pad on the thrust bearing. This engagement ensures the coaxiality of the pull pin sleeve and the back arc pad, guaranteeing the direction of pull-out. Furthermore, because the pull pin sleeve engages with the back arc pad, it isolates and protects the top edge of the back arc pad during removal, preventing significant wear on the thrust bearing. The first connecting piece passes through the end plate of the pull pin sleeve and is fixed to the back arc pad within the cavity. Applying tension to the first connecting piece allows the back arc pad to be pulled out. This design, by engaging the pull pin sleeve with the back arc pad and protecting and isolating the edge of the back arc pad, prevents wear and contact between the back arc pad and the inner cavity of the thrust bearing during removal, reducing the degree of wear on the back arc pad.

[0006] Preferably, a second connector is also included. The second connector is fixed to the end plate and located within the cavity, and the first connector and the second connector are connected in a mating manner. The second connector can be connected to the first connector, so that the first connector can simultaneously fix the pull pin sleeve and the back arc pad, allowing the pull pin sleeve and the back arc pad to be pulled out together. The second connector is arranged within the cavity of the pull pin sleeve, which can reduce the axial length of the cavity. At the same time, it can also form a plane inside the cavity through the second connector, reducing the difficulty of fastening the pull pin sleeve and the back arc pad, while also ensuring coaxiality.

[0007] Preferably, a connecting rod is also included. One end of the connecting rod is threaded to the end plate of the pull pin sleeve and passes through the cavity. The length of the threaded section of the connecting rod connected to the pull pin sleeve is not less than the axial length of the pull pin sleeve. The connecting rod allows for a greater pulling force to be applied to the pull pin sleeve, thereby enabling better removal of the back arc pad. Furthermore, the threaded section of the connecting rod is designed to be longer, allowing the connecting rod to completely pass through the pull pin sleeve. If the back arc pad becomes stuck inside the pull pin sleeve after being pulled out, it can be pushed out using the connecting rod.

[0008] Preferably, a sliding block is slidably connected to the connecting rod, and a limiting block is provided on the side of the connecting rod away from the end plate. The sliding block is located between the limiting block and the end plate. When the sliding block slides on the connecting rod and impacts the limiting block, it can generate an upward pull-out force on the connecting rod, which makes it easier to pull the back arc pad block out of the thrust pad block.

[0009] Preferably, the sliding block has a first flange plate at one end near the limiting block. The first flange plate can impact the limiting block to generate an upward pulling force; at the same time, it can also prevent the worker's hand from slipping off the sliding block and hitting the limiting block when the worker moves the sliding block upward, thus preventing hand injury; it improves the removal effect while also increasing safety.

[0010] Preferably, the sliding block is provided with a hand grip, the length of which is 75mm to 90mm. The hand grip on the sliding block allows the operator to hold and move the sliding block. The length of the hand grip is designed between 75mm and 90mm, which is conducive to the hand holding the sliding block, conforms to ergonomics, and is convenient for the operator to hold and operate.

[0011] Preferably, the first connector is a screw, and a rotating part is provided at the end of the first connector away from the end plate. The first connector is designed as a screw structure, and the rotating part is provided on the first connector, so that the first connector forms a quick-release screw, which can improve the connection efficiency of the first connector, the second connector (the second connector is a nut), and the back arc pad.

[0012] Preferably, the rotating part is a rectangular block, and the radial dimension of the rotating part is smaller than the radial dimension of the first connecting member. Designing the rotating part as a rectangular block facilitates the worker's rotation of the first connecting member, and the smaller size of the rotating part also prevents interference between the rotating part and the connecting rod on the side.

[0013] Preferably, the sliding block has a second flange plate at the end away from the first flange plate. The second flange plate prevents the sliding block from falling to the bottom of the connecting rod and is located between the first connector and the connecting rod, ensuring that the sliding block is in the optimal position.

[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) it can prevent the back arc pad from tilting when disassembling the back arc pad and reduce the wear degree when the back arc pad is removed; (2) it has protective measures, which improves the safety during the removal process and avoids injury to the workers' hands; (3) it is more labor-saving and convenient to use, which improves the disassembly efficiency of the back arc pad on the thrust pad. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of Embodiment 1 of the present utility model.

[0016] Figure 2 This is a schematic diagram of Embodiment 2 of the present invention.

[0017] Figure 3 This is a cross-sectional view of Embodiment 2 of the present invention.

[0018] Figure 4This is a bottom view of the pull pin sleeve of this utility model.

[0019] Figure 5 This is a schematic diagram of the first connecting member of this utility model.

[0020] Figure 6 This is a schematic diagram of the thrust pad and back arc pad of this utility model.

[0021] In the figure: 1. Pull pin sleeve, 2. End plate, 3. Cavity, 4. Through hole, 5. First connector, 6. Second connector, 7. Connecting rod, 8. Sliding block, 9. Limiting block, 10. First flange plate, 11. Hand grip, 12. Rotating part, 13. Second flange plate, 14. Thrust pad, 15. Back arc pad, 16. Connecting hole. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0023] Example 1: As Figure 1 The device shown is a thrust bearing back arc pad disassembly device, including a pull pin sleeve 1. The pull pin sleeve 1 has a cylindrical structure with a cylindrical cavity 3 inside. An end plate 2 is designed at one end of the pull pin sleeve 1. The end plate 2 is part of the pull pin sleeve 1 and can be designed as an integral structure, such as... Figure 4 As shown, three sets of through holes 4 are designed on the end plate 2 of the pull pin sleeve 1. The through holes 4 are evenly distributed in a ring on the end plate 2. By fastening the pull pin sleeve 1 onto the back arc pad 15 of the thrust bearing 14, and then connecting it to the back arc pad 15 through the first connector 5 passing through the end plate 2, the back arc pad 15 can be pulled off the thrust bearing 14. Furthermore, since the pull pin sleeve 1 fastens the back arc pad 15, it plays a role in isolating and protecting the top edge of the back arc pad 15 during the removal process, preventing the back arc pad 15 from causing significant wear on the thrust bearing 14.

[0024] Specifically, such as Figure 6As shown, the back arc pad 15 is embedded in the thrust bearing 14. The back arc pad 15 is circular, and three sets of connecting holes 16 are distributed on the back arc pad 15. Therefore, when designing the end plate 2 of the pull pin sleeve 1, it is necessary to ensure that the positions of the three sets of through holes 4 on the end plate 2 correspond to the positions of the three sets of connecting holes 16 on the back arc pad 15. Of course, the number of through holes 4 can be determined according to the number of connecting holes 16 on the back arc pad 15. In this embodiment, only three sets of connecting holes 16 and three sets of through holes 4 are used. For example, if the number of connecting holes 16 on the back arc pad 15 is four or five (all evenly distributed in a ring), then the number of through holes 4 on the end plate 2 can be designed to be two or three (also evenly distributed in a ring). This not only reduces the number of through holes 4, but also ensures the uniformity or symmetry of the arrangement of through holes 4. This ensures that after the pull pin sleeve 1 engages with the back arc pad 15 and is connected, the pull-out force on the back arc pad 15 is uniform, which can prevent the back arc pad 15 from being pulled out crooked.

[0025] Specifically, in this embodiment, the first connecting member 5 is a screw structure, and the connecting hole 16 on the back arc pad 15 is a threaded hole. Similarly, the through hole 4 on the end plate 2 can also be designed as a threaded hole. In this way, the first connecting member 5 is threadedly connected to the end plate 2 and the back arc pad 15 respectively, and the first connecting member 5, the end plate 2 (pull pin sleeve 1) and the back arc pad 15 are fixed together. By applying a pulling force to the first connecting member 5, the back arc pad 1 can be pulled out from the thrust block 14.

[0026] It should also be noted that a rotating part 12 is provided at the end of the first connector 5 away from the end plate. Since the first connector 5 is fixed to the end plate 2 and the back arc pad 15 by screw connection, the first connector 5 needs to be rotated into the end plate 2 and the back arc pad 15. In order to ensure connection efficiency, a rotating part 12 is designed on the first connector 5 to facilitate the operator to apply rotational force to the first connector 5. Specifically, the rotating part 12 can be designed as a rectangular block, which is easier to apply circumferential rotational force to compared to a cylinder; it can also be designed as a rotating arm to increase the rotational force arm on the first connector 5, which can also improve connection efficiency.

[0027] Example 2: As Figure 1 The device shown is a thrust bearing back arc pad disassembly device, including a pull pin sleeve 1. The pull pin sleeve 1 has a cylindrical structure with a cylindrical cavity 3 inside. An end plate 2 is designed at one end of the pull pin sleeve 1. The end plate 2 is part of the pull pin sleeve 1 and can be designed as an integral structure, such as... Figure 4As shown, three sets of through holes 4 are designed on the end plate 2 of the pull pin sleeve 1. The through holes 4 are evenly distributed in a ring on the end plate 2. By fastening the pull pin sleeve 1 onto the back arc pad 15 of the thrust bearing 14, and then connecting it to the back arc pad 15 through the first connector 5 passing through the end plate 2, the back arc pad 15 can be pulled off the thrust bearing 14. Furthermore, since the pull pin sleeve 1 fastens the back arc pad 15, it plays a role in isolating and protecting the top edge of the back arc pad 15 during the removal process, preventing the back arc pad 15 from causing significant wear on the thrust bearing 14.

[0028] Specifically, such as Figure 6 As shown, the back arc pad 15 is embedded in the thrust bearing 14. The back arc pad 15 is circular, and three sets of connecting holes 16 are distributed on the back arc pad 15. Therefore, when designing the end plate 2 of the pull pin sleeve 1, it is necessary to ensure that the positions of the three sets of through holes 4 on the end plate 2 correspond to the positions of the three sets of connecting holes 16 on the back arc pad 15. Of course, the number of through holes 4 can be determined according to the number of connecting holes 16 on the back arc pad 15. In this embodiment, only three sets of connecting holes 16 and three sets of through holes 4 are used. For example, if the number of connecting holes 16 on the back arc pad 15 is four or five (all evenly distributed in a ring), then the number of through holes 4 on the end plate 2 can be designed to be two or three (also evenly distributed in a ring). This not only reduces the number of through holes 4, but also ensures the uniformity or symmetry of the arrangement of through holes 4. This ensures that after the pull pin sleeve 1 engages with the back arc pad 15 and is connected, the pull-out force on the back arc pad 15 is uniform, which can prevent the back arc pad 15 from being pulled out crooked.

[0029] Specifically, in this embodiment, the first connecting member 5 is a screw structure, and the connecting hole 16 on the back arc pad 15 is a threaded hole. To avoid designing the through hole 4 on the end plate 2 as a threaded hole, which could damage the threads after repeated connection and engagement of the first connecting member 5 and the through hole 4 (the pull-out force is along the axial direction of the through hole 4, which easily damages the thread), causing the entire pull pin sleeve 1 to fail, a second connecting member 6 is provided inside the pull pin sleeve 1. The second connecting member 6 can engage with the first connecting member 5, that is, the second connecting member 6 is a nut structure. In use, the first connecting member 5 first passes through the through hole 4 on the end plate 2 and then screws the second connecting member 6 and the back arc pad 15 together. This also allows the first connecting member 5, the pull pin sleeve 1, and the back arc pad 15 to be fixed as one unit. If the threads are damaged after repeated use, only the second connecting member 6 or the first connecting member 5 needs to be replaced.

[0030] Specifically, the second connector 6 is designed on the end plate 2 and corresponds to the position of the through hole 4. A fixing groove (not shown in the figure) is provided on the side of the end plate 2 near the cavity 3. The second connector 6 is embedded in the fixing groove. Since the nut is generally hexagonal, the fixing groove is also hexagonal, thus preventing the second connector 6 from rotating circumferentially during the screwing process. Furthermore, the second connector 6 and the end plate 2 are designed to be detachable, which also facilitates the replacement of the second connector 6.

[0031] Furthermore, since the pin puller sleeve 1 and the back arc pad 15 do not need to be completely fastened together, and in reality it may not be possible for the back arc pad 15 to be completely fastened into the cavity 3 of the pin puller sleeve 1; it is only necessary to ensure that the pin puller sleeve 1 can be fastened onto the back arc pad 15 and partially engage with the surface circumference of the back arc pad 15. In other words, at this time the pin puller sleeve 1 can partially enter the gap between the back arc pad 15 and the thrust pad 14. This can prevent the back arc pad 15 from tilting and the inner cavity of the thrust pad 14 from contacting and wearing during the pull-out operation. Therefore, the second connector 6 is designed in the cavity 3 of the pin puller sleeve 1, which can reduce the axial length of the cavity 3 to a certain extent, and the axial length of the pin puller sleeve 1 does not need to be designed to be very long; and a finding plane can be formed on the lower end face of the three sets of second connectors 6 (nuts). This finding plane is parallel to the end face of the end plate 2. When the back arc pad 15 is in contact with the three sets of second connectors 6, it indicates that the back arc pad 15 and the pin puller sleeve 1 are in a coaxial position, ensuring that they will not be pulled off crookedly during the pull-out process.

[0032] It should also be noted that a rotating part 12 is provided at the end of the first connector 5 away from the end plate 2. Since the first connector 5 is fixed to the end plate 2 and the back arc pad 15 by screw connection, the first connector 5 needs to be rotated into the end plate 2 and the back arc pad 15. In order to ensure connection efficiency, a rotating part 12 is designed on the first connector 5 so that the operator can better apply rotational force to the first connector 5. Specifically, the rotating part 12 can be designed as a rectangular block, which is easier to apply circumferential rotational force to compared to a cylinder; or it can be designed as a rotating arm to increase the rotational force arm on the first connector 5, which can also improve connection efficiency.

[0033] Example 3: As Figure 1 The device shown is a thrust bearing back arc pad disassembly device, including a pull pin sleeve 1. The pull pin sleeve 1 has a cylindrical structure with a cylindrical cavity 3 inside. An end plate 2 is designed at one end of the pull pin sleeve 1. The end plate 2 is part of the pull pin sleeve 1 and can be designed as an integral structure, such as... Figure 4As shown, three sets of through holes 4 are designed on the end plate 2 of the pull pin sleeve 1. The through holes 4 are evenly distributed in a ring on the end plate 2. By fastening the pull pin sleeve 1 onto the back arc pad 15 of the thrust bearing 14, and then connecting it to the back arc pad 15 through the first connector 5 passing through the end plate 2, the back arc pad 15 can be pulled off the thrust bearing 14. Furthermore, since the pull pin sleeve 1 fastens the back arc pad 15, it plays a role in isolating and protecting the top edge of the back arc pad 15 during the removal process, preventing the back arc pad 15 from causing significant wear on the thrust bearing 14.

[0034] Specifically, such as Figure 6 As shown, the back arc pad 15 is embedded in the thrust bearing 14. The back arc pad 15 is circular, and three sets of connecting holes 16 are distributed on the back arc pad 15. Therefore, when designing the end plate 2 of the pull pin sleeve 1, it is necessary to ensure that the positions of the three sets of through holes 4 on the end plate 2 correspond to the positions of the three sets of connecting holes 16 on the back arc pad 15. Of course, the number of through holes 4 can be determined according to the number of connecting holes 16 on the back arc pad 15. In this embodiment, only three sets of connecting holes 16 and three sets of through holes 4 are used. For example, if the number of connecting holes 16 on the back arc pad 15 is four or five (all evenly distributed in a ring), then the number of through holes 4 on the end plate 2 can be designed to be two or three (also evenly distributed in a ring). This not only reduces the number of through holes 4, but also ensures the uniformity or symmetry of the arrangement of through holes 4. This ensures that after the pull pin sleeve 1 engages with the back arc pad 15 and is connected, the pull-out force on the back arc pad 15 is uniform, which can prevent the back arc pad 15 from being pulled out crooked.

[0035] Specifically, in this embodiment, the first connecting member 5 is a screw structure, and the connecting hole 16 on the back arc pad 15 is a threaded hole. To avoid designing the through hole 4 on the end plate 2 as a threaded hole, which could damage the threads after repeated connection and engagement of the first connecting member 5 and the through hole 4 (the pull-out force is along the axial direction of the through hole 4, which easily damages the thread), causing the entire pull pin sleeve 1 to fail, a second connecting member 6 is provided inside the pull pin sleeve 1. The second connecting member 6 can engage with the first connecting member 5, that is, the second connecting member 6 is a nut structure. In use, the first connecting member 5 first passes through the through hole 4 on the end plate 2 and then screws the second connecting member 6 and the back arc pad 15 together. This also allows the first connecting member 5, the pull pin sleeve 1, and the back arc pad 15 to be fixed as one unit. If the threads are damaged after repeated use, only the second connecting member 6 or the first connecting member 5 needs to be replaced.

[0036] Specifically, the second connector 6 is designed on the end plate 2 and corresponds to the position of the through hole 4. A fixing groove (not shown in the figure) is provided on the side of the end plate 2 near the cavity 3. The second connector 6 is embedded in the fixing groove. Since the nut is generally hexagonal, the fixing groove is also hexagonal, thus preventing the second connector 6 from rotating circumferentially during the screwing process. Furthermore, the second connector 6 and the end plate 2 are designed to be detachable, which also facilitates the replacement of the second connector 6.

[0037] Furthermore, since the pin puller sleeve 1 and the back arc pad 15 do not need to be completely fastened together, and in reality it may not be possible for the back arc pad 15 to be completely fastened into the cavity 3 of the pin puller sleeve 1; it is only necessary to ensure that the pin puller sleeve 1 can be fastened onto the back arc pad 15 and partially engage with the surface circumference of the back arc pad 15. In other words, at this time the pin puller sleeve 1 can partially enter the gap between the back arc pad 15 and the thrust pad 14. This can prevent the back arc pad 15 from tilting and the inner cavity of the thrust pad 14 from contacting and wearing during the pull-out operation. Therefore, the second connector 6 is designed in the cavity 3 of the pin puller sleeve 1, which can reduce the axial length of the cavity 3 to a certain extent, and the axial length of the pin puller sleeve 1 does not need to be designed to be very long; and a finding plane can be formed on the lower end face of the three sets of second connectors 6 (nuts). This finding plane is parallel to the end face of the end plate 2. When the back arc pad 15 is in contact with the three sets of second connectors 6, it indicates that the back arc pad 15 and the pin puller sleeve 1 are in a coaxial position, ensuring that they will not be pulled off crookedly during the pull-out process.

[0038] A connecting rod 7 is screwed onto the end plate of the pull pin sleeve 1. The connecting rod 7 is located in the middle of the end plate 2. A limit block 9 is provided at the end of the connecting rod 7 away from the end plate 2. A sliding block 8 is sleeved on the outside of the connecting rod 7. Since the connecting rod 7 and the pull pin sleeve 1 are fixed together, only a pulling force needs to be applied to the connecting rod 7 to achieve the pull-out effect of the pull pin sleeve 1, thereby realizing the pull-out of the back arc pad block 15.

[0039] Specifically, the length of the threaded section between the connecting rod 7 and the end plate 2 is greater than or equal to the overall axial length of the pull pin sleeve 1. When the back arc pad 15 is pulled out from the thrust pad 14, the back arc pad 15 may get stuck in the pull pin sleeve 1. At this time, by rotating the connecting rod 7, the connecting rod 7 extends into the cavity 3, generating a thrust on the back arc pad 15, which can push the back arc pad 15 out of the pull pin sleeve 1.

[0040] It should be noted that, due to the larger radial dimension of the connecting rod 7 (relative to the first connecting piece 5), the connecting rod 7 and the pull pin sleeve 1, as well as the connecting rod 7 and the limiting block 9, can be fixed by screw connections. The thread structure on it can be larger, and the strength will be higher, which can greatly reduce the possibility of thread damage. Of course, if it is used with a high tight fit between the back arc pad 15 and the thrust pad 14, the connecting rod 7 and the end plate 2 can also be designed in the same form as the first connecting piece 5 and the second connecting piece 6, which will not be elaborated here.

[0041] A sliding block 8 is positioned between the limiting block 9 and the end plate 2. The sliding block 8 is cylindrical, with a concave grip portion 11 in the middle for the operator to hold. The two ends of the sliding block 8 are a first flange plate 10 and a second flange plate 13, respectively. The first flange plate 10 is closer to the limiting block 9, and the second flange plate 13 is closer to the end plate 2. The first flange plate 10 can impact the limiting block 9 to generate an upward pulling force; it also prevents the operator's hand from slipping off the sliding block 8 and hitting the limiting block 9, thus preventing hand injury. This improves the removal efficiency and increases safety. The second flange plate 13 prevents the sliding block 8 from falling to the bottom of the connecting rod 7, and is located between the first connecting member 5 and the connecting rod 7, ensuring the sliding block 8 is in the optimal position. The length of the grip portion 11 is designed between 75mm and 90mm; in this embodiment, it is 80mm, which is ergonomic, convenient for the operator to hold and operate.

[0042] When performing the removal operation, the operator only needs to move the sliding block 8 back and forth so that the sliding block 8 strikes the limiting block 9. The striking force generates a pulling force on the pin sleeve 1, which makes the removal of the back arc pad 15 simpler and more convenient.

[0043] It should also be noted that a rotating part 12 is provided at the end of the first connector 5 away from the end plate 2. Since the first connector 5 is fixed to the end plate 2 and the back arc pad 15 by screw connection, the first connector 5 needs to be rotated into the end plate 2 and the back arc pad 15. In order to ensure connection efficiency, a rotating part 12 is designed on the first connector 5 so that the operator can better apply rotational force to the first connector 5. Specifically, the rotating part 12 can be designed as a rectangular block, which is easier to apply circumferential rotational force to compared to a cylinder; or it can be designed as a rotating arm to increase the rotational force arm on the first connector 5, which can also improve connection efficiency.

Claims

1. A device for disassembling the back arc pad of a thrust bearing, characterized in that, The device includes a pin puller sleeve, one end of which is provided with an end plate. The side of the pin puller sleeve away from the end plate is provided with a cavity that is adapted to the outer peripheral surface of the back arc pad. The end plate is provided with at least two sets of annularly distributed through holes. A first connecting member that can be fixed to the end plate and the back arc pad passes through the through holes. The device also includes a second connecting member, which is fixed to the end plate and located in the cavity. The first connecting member and the second connecting member are connected in a cooperative manner.

2. The thrust bearing back arc pad disassembly device according to claim 1, characterized in that, It also includes a connecting rod, one end of which is threaded to the end plate of the pin sleeve and passes through the cavity. The length of the threaded section on the connecting rod that connects to the pin sleeve is not less than the axial length of the pin sleeve.

3. The thrust bearing back arc pad disassembly device according to claim 2, characterized in that, A sliding block is slidably connected to the connecting rod, and a limiting block is provided on the side of the connecting rod away from the end plate. The sliding block is located between the limiting block and the end plate.

4. The thrust bearing back arc pad disassembly device according to claim 3, characterized in that, The sliding block has a first flange plate at one end near the limiting block.

5. The thrust bearing back arc pad disassembly device according to claim 3, characterized in that, The sliding block is provided with a hand grip, the length of which is 75mm to 90mm.

6. The thrust bearing back arc pad disassembly device according to claim 2, characterized in that, The first connector is a screw, and a rotating part is provided at the end of the first connector away from the end plate.

7. The thrust bearing back arc pad disassembly device according to claim 6, characterized in that, The rotating part is a rectangular block, and the radial dimension of the rotating part is smaller than the radial dimension of the first connector.

8. The thrust bearing back arc pad disassembly device according to claim 4, characterized in that, The sliding block has a second flange plate at the end away from the first flange plate.

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