Belt pulley dismounting device

Abstract

The utility model provides a belt pulley dismounting device, and relates to the technical field of motor maintenance tools. The belt pulley dismounting device comprises a back shore seat, one end of the back shore seat is used for abutting against the end face, connected with a motor output shaft, of a motor, the other end of the back shore seat is a back shore end, the back shore end is provided with a back shore piece in a threaded mode, and the back shore piece is used for back shore of a belt pulley. One end of a back shore seat abuts against the end face of a motor, the other end of the back shore seat is provided with a back shore piece in a threaded mode, when the back shore piece is screwed into a back shore belt wheel in a threaded mode, the back shore seat abutting against the end face of the motor exerts extrusion force on the motor, the motor, a motor output shaft and an expansion sleeve on the output shaft are all subjected to acting force opposite to the belt wheel, and therefore the belt wheel is separated from the expansion sleeve. According to the device, the belt pulley can be disassembled only by screwing in the jacking piece, the labor intensity of operators is greatly reduced, the belt pulley disassembling efficiency is improved, and disassembling is simple and efficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor maintenance tools and mainly relates to a pulley disassembly device. Background Art

[0002] In the process of mechanical oil production, in order to give full play to the production potential of the oil layer, measures such as changing pumps, adjusting strokes, and adjusting the number of strokes are often taken to achieve an injection-production balance. At present, the most economical and widely used measure is to adjust the number of strokes, which is achieved by replacing pulleys of different diameters. Belt-type oil pumping units are widely used due to their outstanding advantages. The pulleys they use are expansion sleeve pulleys, which are connected by pressing the outer cone of the expansion sleeve and the inner cone of the pulley. Normal disassembly only requires a wrench. First, remove the connecting bolts between the expansion sleeve and the pulley, and then screw the connecting bolts into the disassembly hole to separate the pulley from the expansion sleeve.

[0003] However, in actual use, due to the harsh working conditions of the pulley in the field and the long-term high temperature and high humidity environment, the outer cone surface of the expansion sleeve and the inner cone surface of the pulley are oxidized and rusted, or the pulley and the motor shaft are unqualifiedly assembled, the key and the keyway are ground and deformed due to long-term operation, etc. When the connecting bolts that come with the pulley are used for disassembly, the pulley is difficult to remove due to the small diameter of the connecting bolts and insufficient torque, and the bolts are even directly broken.

[0004] Common tools for removing motor pulleys in the prior art are jacks and tensioners. However, when using a jack, the pulley is easily stuck on the motor shaft due to the sinking of the rear end of the jack, causing the lifting force to be skewed. In addition, a connecting structure is required to be set up when supporting the pulley so that the pulley can be removed, which can easily damage the pulley.

[0005] Chinese patent CN209062995U discloses an adjustable motor pulley impact extractor, comprising a first support seat, a second support seat and a support block, wherein the first support seat and the second support seat are arranged on the motor shaft and are located between the motor pulley and the motor end cover, the first support seat and the second support seat are detachably connected, the support block is provided with an arched groove for avoiding the motor shaft, and its thickness decreases from top to bottom, the first support seat is against the motor end cover, and the lower end of the support block is inserted between the second support seat and the motor pulley and knocked, and the pulley is squeezed out by utilizing the thickness change of the support block, thereby solving the problem of the pulley being stuck on the motor shaft caused by the deflection of the top force. However, when removing the pulley, the device needs to continuously knock the support block to make the support block squeeze the pulley, which has the problems of high labor intensity for the operator and slow disassembly efficiency. Utility Model Content

[0006] The utility model aims to provide a pulley disassembly device to solve the problem of high labor intensity for operators and low disassembly efficiency caused by the prior art that when disassembling the pulley, the support block needs to be continuously knocked to squeeze the support block out of the pulley.

[0007] In order to solve the above technical problems, the technical solution of the pulley disassembly device of the utility model is:

[0008] A pulley disassembly device comprises a supporting seat, one end of which is used to support the end surface of a motor connected to a motor output shaft, and the other end of which is a supporting end, wherein the supporting end is threadedly equipped with a supporting member, and the supporting member is used to support the pulley.

[0009] Preferably, the top support seat has a hollow structure that can be sleeved on the output shaft of the motor, and there are multiple top support members that are evenly arranged along the circumferential direction of the top support seat.

[0010] Preferably, the top support seat includes a first support seat and a second support seat connected to the first support seat via a connecting member, and at least one of the first support seat and the second support seat is adjustably fixedly assembled on the connecting member.

[0011] Preferably, the connecting member is a screw, the threads at both ends of the screw are in opposite directions, and the first support seat and the second support seat are both provided with threaded holes for the screw to pass through and cooperate with the threads at both ends of the screw.

[0012] Preferably, at least one of the first support seat and the second support seat is an annular support seat, and the annular support seat is provided with an axial annular bulge along the axial outward extension direction, and the axial annular bulge is used to press against the end face of the motor connected to the motor output shaft, and the connecting piece is connected to the annular support seat, and the axial space of the axial annular bulge protruding from the annular support seat is used to provide an avoidance space for the extension and retraction of the connecting piece.

[0013] Preferably, the top support seat is an annular body which is divided and arranged along the circumferential direction, and the annular body has a stop step, and the stop step is used for stop cooperation with the shoulder of the output shaft.

[0014] Preferably, the top support seat is assembled from two halves, one end of the two halves is hingedly connected, and the other end has a buckle lock structure.

[0015] Preferably, a boss is provided on the outer edge of the top supporting end of the top supporting seat, and a threaded hole cooperating with the push piece is opened on the boss, and the connecting piece is located in the inner area of ​​the threaded hole of the top supporting seat.

[0016] The utility model provides a pulley disassembly device in a pioneering manner, by arranging a top support seat with one end pressed against the end face of the motor and a top support piece threadedly assembled on the other end, when the top support piece is threaded into the top support pulley, the top support seat pressed against the end face of the motor applies an extrusion force to the motor, and the motor and the motor output shaft and the expansion sleeve on the output shaft are all subjected to a force opposite to the pulley, so that the pulley is separated from the expansion sleeve, and the purpose of disassembling the pulley is achieved; the disassembly device only needs to screw in the top support piece to realize the disassembly of the pulley, which greatly reduces the labor intensity of the operator, increases the efficiency of the pulley disassembly, and the disassembly is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of Embodiment 1 of the pulley disassembly device provided by the utility model;

[0018] Figure 2 for Figure 1 A right side view of the first support seat;

[0019] Figure 3 for Figure 1 A left view of the second support seat;

[0020] Figure 4 This is a schematic diagram of the pulley assembly;

[0021] Figure 5 for Figure 4 A cross-sectional view of part A;

[0022] Figure 6 is a schematic diagram of the pulley disassembly device of Example 1 during the disassembly process;

[0023] In the accompanying drawings: 1. first support seat; 11. first circular ring; 12. second circular ring; 13. stop step; 2. second support seat; 21. annular support plate; 211. push threaded hole; 212. push nut; 22. arc-shaped boss; 23. groove; 3. screw; 31. screw threaded hole; 4. pin hole; 41. first pin hole, 42. second pin hole; 5. through pin; 6. motor; 7. pulley; 8. motor output shaft; 81. shoulder; 82. key; 9. expansion sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The technical concept of the pulley disassembly device provided by the utility model is as follows:

[0026] The pulley disassembly device provided by the utility model comprises a support seat, one end of which is used to press against the end face of the motor 6 connected with the output shaft, and the other end is a support end, and the support end is threadedly equipped with a support member, and the support member is used to support the pulley 7. By setting one end of the support seat to press against the end face of the motor 6, and the other end of the support seat to press against the pulley 7, the support seat is located between the motor 6 and the pulley 7. When the support member is threaded into the pulley 7, the support seat pressed against the end face of the motor 6 applies an extrusion force to the motor 6, and the motor 6 and the motor output shaft 8 and the expansion sleeve 9 on the output shaft are subjected to a force opposite to the pulley 7. As the support member is continuously screwed in, the force on the pulley 7 becomes larger and larger until the pulley 7 is separated from the expansion sleeve 9, so as to achieve the purpose of disassembling the pulley 7. The disassembly device only needs to screw in the support member to realize the disassembly of the pulley 7, which greatly reduces the labor intensity of the operator and can effectively improve the disassembly efficiency of the pulley 7. When the disassembly device is disassembly, the disassembly method is simple and efficient.

[0027] 1. Specific embodiment of the pulley disassembly device provided by the utility model

[0028] Example 1

[0029] The pulley disassembly device provided in this embodiment refers to Figure 1-6 The structure shown includes a supporting seat, one end of which is used to support the end surface of the motor 6 connected to the output shaft, and the other end of the supporting seat is a supporting end, which is threadedly equipped with a supporting member, and the supporting member is used to support the pulley 7.

[0030] It can be understood that the support seat may not be mounted on the motor output shaft 8, but may be located on the periphery of the output shaft. At this time, one end of the support seat rests on a part of the end face of the motor 6 connected to the output shaft, and the support member threadedly assembled at the support end can only support a part of the pulley 7. When the pulley 7 is disassembled, since only a part of the pulley 7 is subjected to the supporting force of the support member, the various parts of the pulley 7 along the circumferential direction are subjected to uneven force, which may easily cause the pulley 7 to be stuck on the motor output shaft 8.

[0031] Therefore, in order to make the pulley 7 receive a uniform supporting force, the supporting seat has a hollow structure that can be sleeved on the motor output shaft 8, and the supporting members are multiple and evenly arranged along the circumferential direction of the supporting seat. By sleeved on the motor output shaft 8, the supporting end at the other end is provided with multiple supporting members evenly arranged along the circumferential direction, when the pulley 7 is disassembled, the supporting members can evenly support various parts of the pulley 7 along the circumferential direction of the pulley 7, so that various parts of the pulley 7 can receive a supporting force, thereby preventing the phenomenon that only a part of the pulley is subjected to force and causing the pulley 7 to be stuck on the output shaft.

[0032] Of course, it can be understood that the top support seat can be an annular structure with petals in the circumferential direction, and the petals are arranged so that the annular structure can be opened and sleeved on the motor output shaft 8. The top support seat can also be a C-shaped structure, the opening width of the C-shaped structure is not less than the diameter of the motor output shaft 8, so that it can be straddled on the motor output shaft 8, one end of the C-shaped structure is used to press against the end face of the motor 6 connected to the output shaft, and the top support end at the other end is evenly equipped with top support members along the circumferential direction.

[0033] Other partial structures not described in detail in this embodiment may be the same as the structures described in other embodiments in this document.

[0034] Example 2

[0035] The pulley disassembly device provided in this embodiment is as follows: Figure 1-6 As shown, it includes a supporting seat, one end of which is used to support the end surface of the motor 6 connected to the output shaft, and the other end of the supporting seat is a supporting end, and the supporting end is threadedly equipped with a supporting member, and the supporting member is used to support the pulley 7.

[0036] The supporting seat can be an integral body formed by a split fixed structure, for example, the supporting seat includes a first supporting seat 1 and a connecting piece fixedly mounted on the first supporting seat 1, the other end of the connecting piece is fixedly connected to the second supporting seat 2, the first supporting seat 1 is used to support the end face of the motor 6 connected to the output shaft, and the second supporting seat 2 is threadedly assembled with a supporting piece, and the supporting piece is used to support the pulley 7. At this time, when the pulley 7 is disassembled, if the relative position of the motor 6 and the pulley 7 is far away, when the first supporting seat 1 is against the end face of the motor 6, the relative position of the second supporting seat 2 and the pulley 7 is far away, and the supporting piece threadedly assembled on the second supporting seat 2 needs to be screwed in a long distance to support the pulley 7, which is time-consuming and laborious when disassembling.

[0037] Therefore, in order to solve the problem that the distance between the top support seat and the pulley 7 is large, which makes the top support member take a long time to screw in and thus leads to a long disassembly time, the top support seat includes a first support seat 1 and a second support seat 2 connected to the first support seat 1 through a connecting member, and at least one of the first support seat 1 and the second support seat 2 is adjustable and fixedly assembled on the connecting member. By at least one of the first support seat 1 and the second support seat 2 being adjustable and fixedly assembled, the distance between the two support seats is adjustable, so that the distance between the pulley 7 and the support seat equipped with the top support member can be adjusted, the path of the top support member screwing into the top support is reduced, the disassembly time is shortened, and the disassembly efficiency is improved.

[0038] Of course, the first support seat 1 or the second support seat 2 can be adjustably fixedly assembled on the connecting rod, or both the first support seat 1 and the second support seat 2 can be adjustably fixedly assembled on the connecting rod. The simultaneous adjustable two support seats can more quickly adjust the interval between the pulley 7 and the support seat equipped with the top support member, saving time and improving disassembly efficiency.

[0039] At least one of the first support seat 1 and the second support seat 2 is adjustably fixedly assembled on the connecting member, and the support seat can be adjustably fixedly assembled on the connecting member through a screw nut. For example, the connecting member is a screw 3, and the first support seat 1 and the second support seat 2 are provided with an avoidance hole for the screw 3 to pass through. The screw 3 is provided with a nut for locking the first support seat 1 and the second support seat 2 in a specific position, and the nut is arranged on both sides of the support seat. However, when adjusting the relative position between the first support seat 1 and the second support seat 2, the above structure needs to unscrew the nuts on both sides of the first support seat 1 and the second support away from the support seat so that the support seat slides on the screw 3. When the support seat slides to a specific position, the nuts on both sides of the support seat need to be screwed back to both sides of the support seat to lock the position of the support seat. The above locking structure is complicated and difficult to operate during adjustable fixed assembly.

[0040] The support seat can also be adjusted and fixedly assembled on the connecting member through a pin shaft structure. For example, the connecting member is a guide rod. The first support seat 1 and the second support seat 2 are provided with avoidance holes for the guide rod to pass through. The guide rod is provided with a plurality of pin holes 4 arranged continuously along the length direction. When the support seat slides to a specific position along the guide rod, the support seat is fixed by inserting through pins 5 into the pin holes 4 on both sides of the support seat. Similarly, when adjusting the relative position between the first support seat 1 and the second support seat 2, the pin shaft structure needs to pull out the through pins 5 on both sides of the support seat so that the support seat can slide on the guide rod. When the support seat slides to a specific position, the through pins 5 are inserted into both sides of the support seat. It is also difficult to operate in the adjustable fixed assembly.

[0041] In order to simplify the structure of adjustable assembly, so that the first support seat 1 and the second support seat 2 can be quickly adjusted and locked, the connecting member is a screw rod 3, the threads at both ends of the screw rod 3 are in opposite directions, and the first support seat 1 and the second support seat 2 are both provided with threaded holes for the screw rod 3 to pass through and to cooperate with the threads at both ends of the screw rod 3. The two support seats are fixed by the opposite threads at both ends of the screw rod 3 and the threaded holes of the support seats. The fixing structure is simple, and the fixed assembly is more convenient. The opposite threads at both ends of the screw rod 3 enable the first support seat 1 and the second support seat 2 to be moved away or close at the same time, so as to realize the adjustable assembly of the support seats and improve the efficiency of the adjustable fixed assembly.

[0042] Other partial structures not described in detail in this embodiment may be the same as the structures described in other embodiments in this document.

[0043] Example 3

[0044] The pulley disassembly device provided in this embodiment refers to Figure 1-6 The structure shown includes a supporting seat, one end of which is used to support the end surface of the motor 6 connected to the output shaft, and the other end of the supporting seat is a supporting end, and the supporting end is threadedly equipped with a supporting member, and the supporting member is used to support the pulley 7. The supporting seat includes a first supporting seat 1 and a second supporting seat 2 connected to the first supporting seat 1 through a connecting member, and at least one of the first supporting seat 1 and the second supporting seat 2 is adjustably fixedly assembled on the connecting member.

[0045] When at least one of the first support seat 1 and the second support seat 2 is adjustably fixedly assembled on the connecting member, the positions of the first support seat 1 and the second support seat 2 relative to the connecting member will change, and the connecting member will extend out of the end of the support seat, so that the end of the connecting member will directly abut against the end face of the motor 6. When the end of the connecting member abuts against the end face of the motor 6, the abutment will be unstable, affecting the disassembly of the pulley 7.

[0046] In order to solve the problem of unstable abutment caused by the end of the connector against the motor 6, one of the first support seat 1 and the second support seat 2 is an annular support seat, and the annular support seat is provided with an axial ring convexity along the axial outward extension direction, and the axial ring convexity is used to abut against the end face of the motor 6 connected to the motor output shaft 8. The connector is connected to the annular support seat, and the axial space of the axial ring convexity protruding from the annular support seat is used to provide an escape space for the expansion and contraction of the connector. By providing the axial ring convexity, when the relative position of the support seat and the connector changes, an escape space is provided for the length direction of the connector, so that the connector will not easily extend out of the end face of the support seat, and the support seat always supports the end face of the motor 6, thereby improving the stability of the support.

[0047] Other partial structures not described in detail in this embodiment may be the same as the structures described in other embodiments in this document.

[0048] Example 4

[0049] The pulley disassembly device provided in this embodiment refers to Figure 1-6 The structure shown includes a support seat, one end of which is used to support the end surface of the motor 6 connected to the output shaft, and the other end of the support seat is a support end, and the support end is threadedly equipped with a support member, and the support member is used to support the pulley 7. The support seat has a hollow structure that can be sleeved on the motor output shaft 8, and there are multiple support members that are evenly arranged along the circumferential direction of the support seat.

[0050] When one end of the supporting seat is against the end face of the motor 6 connected to the output shaft, the end face of the motor 6 is supported by the end face of the supporting seat. When the pulley 7 is disassembled, the end face of the supporting end is constantly subjected to force and the supporting end is prone to dislocation, resulting in unstable supporting and affecting the normal disassembly of the pulley 7.

[0051] In order to solve the problem of instability of the top support seat against the end face of the motor 6, the top support seat is an annular main body arranged separately along the circumferential direction, and the annular main body has a stop step 13, and the stop step 13 is used to stop and cooperate with the shoulder 81 of the output shaft. Through the annular main body arranged separately, the top support seat can be sleeved on the motor output shaft 8, and the stop step 13 of the annular main body can stop and cooperate with the shoulder 81 of the motor output shaft 8, so that the annular main body will not easily move when the pulley 7 is disassembled, and the top support seat is more stable against the end face of the motor 6. The stop step 13 can be formed by the annular main body having inner holes of different diameters.

[0052] Other partial structures not described in detail in this embodiment may be the same as the structures described in other embodiments in this document.

[0053] Example 5

[0054] The pulley disassembly device provided in this embodiment refers to Figure 1-6 The structure shown includes a support seat, one end of which is used to support the end surface of the motor 6 connected to the output shaft, and the other end of the support seat is a support end, and the support end is threadedly equipped with a support member, and the support member is used to support the pulley 7. The support seat has a hollow structure that can be sleeved on the motor output shaft 8, and there are multiple support members that are evenly arranged along the circumferential direction of the support seat.

[0055] In order to make the top support seat more stably sleeved on the motor output shaft 8, the top support seat is an annular main body that is divided and arranged along the circumferential direction. By setting the top support seat as a split setting, the split top support seat is disassembled along the circumferential direction when the disassembly device is installed, so that the disassembled top support seat is sleeved on the motor output shaft 8 and then assembled into shape, which can be suitable for motor output shafts 8 of different diameters and stably sleeved on the motor output shaft 8.

[0056] It is understandable that the split annular body can be assembled with two petals, or with three, four, five or other petals, but when more petals are assembled, the complexity and difficulty of assembly are increased. Therefore, it is preferred that the top support seat is assembled with two petals, one end of the two petals is hingedly connected, and the other end has a buckle lock structure. During assembly, one end of the two petals is hingedly connected, for example, the two petals at this end are respectively provided with two pin holes for pins to pass through. The other end of the two petals has a buckle lock structure, for example, the other end of the two petals is close to the position provided with a close plate parallel to the motor output shaft 8, and the two close plates are provided with avoidance holes for nuts to pass through, and the adjacent petals are locked by nuts and nuts; the other end of the two petals can also be provided with a buckle structure, for example, one side of the other end of the two petals is provided with a movable buckle claw, and the other side is provided with a hook adapted to the buckle claw, and the other end of the two petals is locked by the buckle claw and the hook. Of course, it is understandable that both ends of the two petals can also be connected by hinges.

[0057] Other partial structures not described in detail in this embodiment may be the same as the structures described in other embodiments in this document.

[0058] Example 6

[0059] The pulley disassembly device provided in this embodiment refers to Figure 1-6 The structure shown includes a supporting seat, one end of which is used to support the end surface of the motor 6 connected to the output shaft, and the other end of the supporting seat is a supporting end, which is threadedly equipped with a supporting member, and the supporting member is used to support the pulley 7.

[0060] In order to reduce the weight of the top support end and facilitate carrying, a boss is provided on the outer edge of the top support end of the top support seat, and a threaded hole is provided on the boss to cooperate with the push piece, and the connecting piece is located in the inner area of ​​the threaded hole of the top support seat. By setting the threaded hole that cooperates with the push piece on the outer edge boss of the top support end, compared with setting it on the edge of the entire top support end, the overall weight of the top support end can be effectively reduced, making the disassembly device lighter and easier to carry.

[0061] It can be understood that the boss can be a circular arc boss 22 or a polygonal boss. For ease of processing, a circular arc boss 22 is preferred.

[0062] Other partial structures not described in detail in this embodiment may be the same as the structures described in other embodiments in this document.

[0063] Example 7

[0064] The pulley disassembly device provided in this embodiment refers to Figure 1-6The structure shown includes a support seat, one end of which is used to support the end surface of the motor 6 connected to the output shaft, and the other end of the support seat is a support end, and the support end is threadedly equipped with a support member, and the support member is used to support the pulley 7. The support seat has a hollow structure that can be sleeved on the motor output shaft 8, and there are multiple support members that are evenly arranged along the circumferential direction of the support seat.

[0065] The top support seat includes a first support seat 1 and a second support seat 2 connected to the first support seat 1 through a connecting member, the connecting member is a screw 3, the thread directions of the two ends of the screw 3 are opposite, and the first support seat 1 and the second support seat 2 are both provided with a screw thread hole 31 for the screw 3 to pass through and cooperate with the threads at the two ends of the screw 3.

[0066] The first support seat 1 is used to press against the end face of the motor 6 connected to the output shaft. The first support seat 1 includes a first circular ring 11 and a second circular ring 12 arranged on the first circular ring 11. The first circular ring 11 is located on the periphery of the second circular ring 12 and is provided with a screw threaded hole 31 for the screw 3 to pass through and cooperate with the screw 3. It can be understood that the screw threaded holes can be unevenly arranged or evenly arranged. In order to make the two support seats bear the force evenly, it is preferably evenly arranged. The screw threaded holes can be two, three, four or more evenly arranged. In order to make the support seats bear the force more evenly and not increase the difficulty of adjustable assembly of the support seats, it is preferably four evenly arranged. The inner hole diameter of the first circular ring 11 is smaller than that of the second circular ring 12 to form a stop step 13, and the second circular ring 12 constitutes the axial annular convexity.

[0067] The second support seat 2 constitutes a top support end, and the second support seat 2 includes an annular support plate 21 and an arc-shaped boss 22 evenly arranged on the outer edge of the annular support plate 21, the annular support plate 21 is provided with a screw threaded hole 31 for the screw 3 to pass through and cooperate with the screw 3, and the inner hole of the annular support plate 21 is provided with a groove 23 for cooperating with the key 82 of the motor output shaft 8. The arc-shaped boss 22 is provided with a top push threaded hole 211 cooperating with a push piece, and the push piece is a push nut 212. It can be understood that the arc-shaped boss 22 can be two, three, four, five or more evenly arranged. In order to reduce the weight of the second support seat 2 while providing more uniform top support, four arc-shaped bosses 22 are preferably used.

[0068] The first support seat 1 and the second support seat 2 are both assembled from two evenly arranged halves. When the two halves of the first support and the second support seat 2 are assembled, a pin hole for a through pin 5 to pass through is provided at the assembly position of the two halves so that the two halves are hingedly installed and locked. The pin hole includes a first pin hole 41 and a second pin hole 42 respectively arranged at the assembly position of the two halves.

[0069] Other partial structures not described in detail in this embodiment may be the same as the structures described in other embodiments in this document.

[0070] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pulley disassembly device, characterized in that: It includes a top support seat, one end of which is used to press against the end surface of the motor connected to the motor output shaft, and the other end of the top support seat is a top support end, and the top support end is threadedly equipped with a top support member, and the top support member is used to support the pulley; the top support seat has a hollow structure that can be sleeved on the motor output shaft, and there are multiple top support members that are evenly arranged along the circumferential direction of the top support seat.

2. The pulley disassembly device according to claim 1, characterized in that: The top support seat includes a first support seat and a second support seat connected to the first support seat via a connecting member, and at least one of the first support seat and the second support seat is adjustably fixedly assembled on the connecting member.

3. The pulley disassembly device according to claim 2, characterized in that: The connecting member is a screw rod, the threads at both ends of the screw rod are in opposite directions, and the first support seat and the second support seat are both provided with threaded holes for the screw rod to pass through and matching with the threads at both ends of the screw rod.

4. The pulley disassembly device according to claim 2, characterized in that: One of the first support seat and the second support seat is an annular support seat, and the annular support seat is provided with an axial ring convexity along the axial outward extension direction, and the axial ring convexity is used to press against the end face of the motor connected to the motor output shaft. The connecting piece is connected to the annular support seat, and the axial space of the axial ring convexity protruding from the annular support seat is used to provide an avoidance space for the extension and retraction of the connecting piece.

5. The pulley disassembly device according to claim 1, characterized in that: The top support seat is an annular main body which is divided and arranged along the circumferential direction. The annular main body has a stop step, and the stop step is used for stop cooperation with the shoulder of the output shaft.

6. The pulley disassembly device according to claim 5, characterized in that: The top support seat is assembled from two halves, one end of the two halves is hingedly connected, and the other end has a buckle lock structure.

7. The pulley disassembly device according to claim 2, characterized in that: A boss is provided at the outer edge of the top supporting end of the top supporting seat, and a threaded hole cooperating with the push piece is opened on the boss, and the connecting piece is located in the inner area of ​​the threaded hole of the top supporting seat.

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