Bearing end cover dismounting device

Abstract

The invention relates to generator set mounting equipment, and provides a bearing end cover dismounting and mounting device which comprises a fixed frame used for being fixedly mounted on a shaft body and a rotating frame used for being arranged on the shaft body in a sleeving mode, a supporting piece is arranged on the rotating frame, and the supporting piece is used for being connected with a mounting hole of a bearing end cover. The rotating mechanism is arranged between the fixed frame and the rotating frame, so that the rotating frame is rotatably connected with the fixed frame; the displacement mechanism is arranged on the fixed frame, and the displacement mechanism is used for driving the rotating mechanism to drive the rotating frame to move in the axial direction; and the positioning adjusting mechanism is arranged on the fixed frame and used for adjusting the relative position of the fixed frame and the shaft body, so that the rotating axis of the rotating frame is coaxial with the axial direction of the shaft body. The bearing end cover is convenient to disassemble and assemble, the disassembly and assembly efficiency is improved, meanwhile, the assembly quality is improved, and the sealing effect of the sealing ring is not affected.

Description

Technical Field

[0001] The invention relates to generator set installation equipment, in particular to a bearing end cover disassembly and assembly device. Background Art

[0002] The main shaft bearing is an important component of a wind turbine. It bears the radial force, axial force, bending moment and impact load on the wind rotor side, as well as the gravity load of the transmission system. During the life cycle of the wind turbine, the main bearing end cover needs to be opened regularly to check the internal condition of the bearing. If necessary, the internal grease of the bearing needs to be cleared and replaced to extend the service life of the bearing.

[0003] In the prior art, the main shaft bearing end cover is mainly removed and installed by manpower. However, with the development of large-scale units, the main bearings are getting bigger and bigger, and the weight of the bearing end cover is getting heavier. Taking the current 5MW model in the industry as an example, the weight of the main bearing end cover is 250-300KG, and the disassembly and assembly operation is extremely inconvenient. In the process of removing the end cover, multiple people are required to cooperate in removing the end cover along the axial direction. During the removal process, the sealing ring and other components are prone to collision with the main shaft, causing damage to the components. The installation of the sealing end cover relies on manpower to translate along the axial direction, which is easy to cause the sealing ring to fall off, affecting the sealing effect. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a bearing end cover disassembly and assembly device, which is convenient for disassembly and installation of the bearing end cover, improves the disassembly and assembly efficiency, and improves the assembly quality at the same time without affecting the sealing effect of the sealing ring.

[0005] In order to solve the above technical problems, the present invention provides a bearing end cover disassembly and assembly device, comprising: A fixed frame, the fixed frame is used to be fixedly installed on the shaft body, A rotating frame, the rotating frame is used to be sleeved on the shaft body, the rotating frame is provided with a support member, and the support member is used to be connected to the mounting hole of the bearing end cover; A rotating mechanism, wherein the rotating mechanism is disposed between the fixed frame and the rotating frame so that the rotating frame can be rotatably connected to the fixed frame; A displacement mechanism, wherein the displacement mechanism is disposed on the fixed frame and is used to drive the rotating mechanism to drive the rotating frame to move axially; A positioning adjustment mechanism is provided on the fixed frame to adjust the relative position of the fixed frame and the shaft body so that the rotation axis of the rotating frame is coaxial with the axial direction of the shaft body.

[0006] In some specific embodiments, the fixed frame is mounted on the shaft, and the fixed frame is coaxial with the rotating frame.

[0007] In some specific embodiments, the positioning adjustment mechanism includes a positioning adjustment screw and a positioning adjustment hole, and a plurality of the positioning adjustment holes are evenly arranged on the fixed frame along the circumferential direction. The positioning adjustment screw extends from the positioning adjustment hole from the outside to the inside so as to be radially supported on the outer circumferential surface of the shaft body, and the positioning adjustment screw is threadedly connected to the positioning adjustment hole.

[0008] In some specific embodiments, the rotating mechanism includes a rotating support rod and a rotating support wheel, one end of several of the rotating support rods is connected to the fixed frame, and the other end is rotatably connected to the rotating support wheel, and a groove raceway matching the rotating support wheel is formed on the rotating frame.

[0009] In some specific embodiments, the displacement mechanism includes an operating handle and a displacement transmission unit, the displacement transmission unit is arranged on the fixed frame corresponding to the rotating support rod, and the operating handle is connected to the rotating support rod through the displacement transmission unit, so that the operating handle can be rotated to drive the rotating support rod to drive the rotating support wheel to move axially.

[0010] In some specific embodiments, the displacement transmission unit includes a displacement transmission mounting seat and a displacement transmission gear, the displacement transmission gear is arranged in the displacement transmission mounting seat, the fixed frame is provided with a guide through hole extending axially, the end of the rotating support rod facing away from the rotating support wheel extends from the guide through hole to the displacement transmission mounting seat, the protruding end of the rotating support rod is provided with a rack structure meshing with the displacement transmission gear for transmission, the operating handle is arranged on the outside of the displacement transmission mounting seat, and the operating handle is used to drive the displacement transmission gear to rotate.

[0011] In some specific embodiments, each of the rotating support rods is correspondingly provided with the displacement transmission unit, and a synchronous transmission unit is provided between adjacent displacement transmission units, and both ends of the synchronous transmission unit are respectively connected to the displacement transmission gears corresponding to the adjacent displacement transmission units, so that each of the displacement transmission gears rotates synchronously.

[0012] In some specific embodiments, the displacement transmission gear is a ratchet gear, a pawl matched with the ratchet gear is further provided in the displacement transmission mounting seat, and the operating handle is connected to the pawl.

[0013] In some specific embodiments, the support member includes an adjusting fastening bolt and an adjusting mounting seat, and the adjusting fastening bolt is installed on the rotating frame through the adjusting mounting seat so that the displacement of the adjusting fastening bolt can be adjusted radially, and the adjusting fastening bolt is used to be threadedly connected to the mounting hole of the bearing end cover.

[0014] In some specific embodiments, the fixed frame and / or the rotating frame includes a first frame body and a second frame body that are separately arranged, the first frame body and the second frame body are interconnected to form a closed annular frame body, and a detachable positioning connection structure is provided at the connection between the first frame body and the second frame body.

[0015] Through the above scheme, the beneficial effects of the present invention are as follows: The bearing end cover disassembly and assembly device of the present invention is fixedly installed on the shaft body through a fixed frame, and is provided with a positioning and adjustment mechanism to be able to adjust the relative position of the fixed frame and the shaft body, so that the rotation axis of the rotating frame is coaxial with the axial direction of the shaft body, and the rotating frame can rotate around the rotation axis relative to the fixed frame, so that the position of the support member can be adjusted to connect it with the mounting hole on the bearing end cover, and then the rotating mechanism can be driven by the displacement mechanism to drive the rotating frame to move axially, thereby ensuring the accuracy of the axial movement of the bearing end cover during disassembly or installation, effectively avoiding collisions between components such as the sealing ring on the inner ring and the shaft body during disassembly and assembly, greatly reducing the probability of component damage, and the device is easy to use, while ensuring the assembly quality, it also improves the disassembly and assembly efficiency.

[0016] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the cross-sectional structure of the bearing end cover; Figure 2 It is a structural schematic diagram of a specific embodiment of the bearing end cover disassembly and assembly device of the present invention in a use state; Figure 3 It is a structural schematic diagram of a specific embodiment of the bearing end cover disassembly and assembly device of the present invention; Figure 4 It is a structural diagram of a fixed frame; Figure 5 It is a structural diagram of the rotating frame; Figure 6 It is a structural diagram of the displacement mechanism.

[0018] Description of Reference Numerals Tag Name 1. Fixed frame; 2. Rotating frame; 201. Guide groove; 3. Positioning adjustment mechanism; 301. Positioning adjustment screw; 302. Positioning adjustment hole; 4. Support member; 401. Adjustment fastening bolt; 402. Adjustment mounting seat; 5. Displacement mechanism; 501. Operating handle; 502. Displacement transmission unit; 502-1. Displacement transmission mounting seat; 502-2. Displacement transmission gear; 503. Synchronous transmission unit; 503-1. Transmission shaft; 503-2. Universal joint; 6. Rotating mechanism; 601. Rotating support rod; 601-1. Rack structure; 602. Rotating support wheel; 603. Groove raceway; 7. Handle; 1a, first frame; 1b, second frame; 1c, positioning pin; 1d, positioning fastening nut; 100, shaft; 200, bearing end cover; 300, sealing ring; 400, mounting hole. DETAILED DESCRIPTION

[0019] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the following specific embodiments.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "formed", "provided with", "set", "connected" and the like should be understood in a broad sense. For example, the connection can be a direct connection or an indirect connection through an intermediate medium, a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate connector, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present invention, unless otherwise specified, the directions or positional relationships indicated by the directional words "up", "down", "left", "right", "counterclockwise", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only used to facilitate the description of the present invention and simplify the description, rather than to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; the directional terms of the present invention should be understood in conjunction with the actual installation state.

[0022] See also Figure 1 and Figure 2The inner ring of the bearing end cover 200 is provided with a sealing ring 300, which is mounted on the shaft body 100 to seal the bearing on the main shaft of the generator set. When disassembling the bearing end cover 200, it is necessary to ensure that it moves along the axial direction of the shaft body 100 to prevent the sealing ring from being damaged due to the collision between the bearing end cover 200 and the shaft body 100. To this end, the present invention provides a bearing end cover disassembly and assembly device, see Figure 2-Figure 6 , as a specific embodiment of the bearing end cover disassembly and assembly device of the present invention, includes a fixed frame 1, a rotating frame 2, a rotating mechanism 6, a displacement mechanism 5 and a positioning and adjusting mechanism 3, wherein the fixed frame 1 is used to be fixedly installed on the shaft body 100; the rotating frame 2 is used to be sleeved on the shaft body 100, and a support member 4 is provided on the rotating frame 2, and the support member 4 is used to be connected with the mounting hole of the bearing end cover 200; the rotating mechanism 6 is arranged between the fixed frame 1 and the rotating frame 2, so that the rotating frame 2 can be rotatably connected to the fixed frame 1; the displacement mechanism 5 is arranged on the fixed frame 1, and the displacement mechanism 5 is used to drive the rotating mechanism 6 to drive the rotating frame 2 to move axially; the positioning and adjusting mechanism 3 is arranged on the fixed frame 1, so as to adjust the relative position of the fixed frame 1 and the shaft body 100, so that the rotation axis of the rotating frame 2 is coaxial with the axial direction of the shaft body 100.

[0023] Based on the above basic embodiments, when the bearing end cover disassembly and assembly device of the present invention disassembles and assembles the bearing end cover 200, the entire device is fixedly installed on the shaft body 100 through the fixed frame 1, and the relative position of the fixed frame 1 and the shaft body 100 is adjusted through the positioning adjustment mechanism 3, so that the rotation axis of the rotating frame 2 is coaxial with the axial direction of the shaft body 100. After the adjustment and positioning of the fixed frame 1 is completed, the rotating frame 2 can be rotated around the axial direction of the shaft body 100, and the position of the support member 4 can be adjusted to align with the mounting hole on the bearing end cover 200. The support member 4 is fixedly connected to the mounting hole, and the rotating mechanism 6 is driven by the displacement mechanism 5 to drive the rotating frame 2 to move along the axial direction of the shaft body 100, thereby ensuring the accuracy of the axial movement of the bearing end cover 200 during disassembly or installation, effectively avoiding the collision between the inner ring sealing ring 300 and the shaft body 100 during disassembly and assembly, and greatly reducing the probability of component damage. In addition, the bearing end cover disassembly and assembly device of the present invention is easy to use, and uses a mechanical mechanism to ensure the assembly quality while also improving the disassembly and assembly efficiency.

[0024] It should be noted that the shaft body 100 has shaft body parts with different diameters, see Figure 2The diameter of the shaft part fixed by the fixed frame 1 is smaller than the diameter of the shaft part where the bearing end cover 200 cooperates. In the actual disassembly process, when driving the rotating frame 2 to drive the bearing end cover 200 to move axially, it is only necessary to ensure that the bearing end cover 200 moves axially to the shaft part with a smaller diameter. There is a large gap between the inner ring of the bearing end cover 200 and the shaft 100. The large gap can effectively avoid the collision between the internal sealing ring 300 and the shaft 100, making it convenient to remove the bearing end cover from the shaft 100.

[0025] In some specific embodiments, the fixed frame 1 is mounted on the shaft body 100, and the fixed frame 1 is coaxial with the rotating frame 2, so that in the process of positioning the rotating frame 2, it is only necessary to adjust the fixed frame 1 to be coaxial with the shaft body 100, and the positioning adjustment is faster and more efficient. In theory, coaxiality means that the central axes of the two components coincide with each other. However, in the actual production and assembly process, there are inevitable errors, and the central axes of the two components have an angle or offset. However, it can be understood that as long as the error does not affect the axial displacement of the rotating frame 2, the approximate coaxiality is also within the protection scope of the present invention.

[0026] It should be noted that the fixed frame 1 and the rotating frame 2 are arranged corresponding to the shaft 100, and are both circular ring frames to facilitate coaxial positioning with the shaft 100. Further, the fixed frame 1 and / or the rotating frame 2 include a first frame 1a and a second frame 1b arranged separately, see Figure 4 The first frame body 1a and the second frame body 1b are connected to each other to form a closed annular frame body, and a detachable positioning connection structure is provided at the connection between the first frame body 1a and the second frame body 1b. Specifically, the detachable positioning connection structure includes a positioning pin 1c and a positioning fastening nut 1d. A positioning hole for the positioning pin 1c to pass through is formed at the connection between the first frame body 1a and the second frame body 1b, thereby realizing the positioning connection between the two. The protruding end of the positioning pin 1c can be connected to the positioning fastening nut 1d, thereby fastening the first frame body 1a and the second frame body 1b to avoid shaking during use, which affects the accuracy of axial positioning and axial movement.

[0027] In some specific embodiments, the positioning adjustment mechanism includes a positioning adjustment screw 301 and a positioning adjustment hole 302. A plurality of positioning adjustment holes 302 are evenly arranged in the circumferential direction on the fixed frame 1. The positioning adjustment screw 301 extends from the positioning adjustment hole 302 from the outside to the inside so as to be radially supported on the outer peripheral surface of the shaft body 100. The positioning adjustment screw 301 is threadedly connected to the positioning adjustment hole 302, so that the positioning adjustment screw 301 can be rotated forward and backward to control the length thereof extending from the positioning adjustment hole 302, thereby adjusting the distance between the inner ring of the fixed frame 1 and the outer peripheral surface of the shaft body 100. With the cooperation of the positioning adjustment screws 301 in all directions, the concentricity of the fixed frame 1 and the shaft body 100 is adjusted to achieve coaxiality of the two.

[0028] Specifically, see Figure 4 , a total of three groups of positioning adjustment screws 301 and positioning adjustment holes 302 are provided, and are axially arranged on the fixed frame 1 at intervals of 180°. The concentricity of the fixed frame 1 and the shaft body 100 is adjusted by the three positioning adjustment screws 301. At the same time, the shaft body 100 is clamped by the three positioning adjustment screws 301 to fix the fixed frame 1 on the shaft body 100; in order to ensure the stability of the fixed installation, a protective pad can be provided at the abutting end of the positioning adjustment screw 301, and the protective pad is preferably a rubber pad, so that it can increase the friction between the positioning adjustment screw 301 and the shaft body 100 while also protecting the outer peripheral surface of the shaft body 100; further, a pressure sensor can be provided at the abutting end of the positioning adjustment screw 301 to reflect the clamping effect through a specific pressure value.

[0029] It should be noted that when adjusting the concentricity between the fixed frame 1 and the shaft body 100 through the positioning adjustment mechanism, the distance between different parts of the inner ring of the fixed frame 1 and the shaft body 100 can be measured manually, and the concentricity can be adjusted according to the values ​​of each distance. In order to be more intelligent, a number of distance measuring sensors can be evenly spaced axially on the inner ring of the fixed frame 1, so that accurate measurement can be achieved through the distance measuring sensors, and a number of servo motors can be set on the fixed frame 1, and each positioning adjustment screw 301 can be individually controlled and adjusted by the servo motor, and the distance measuring sensor and the servo motor are electrically connected through the controller, so as to analyze the distance measuring signal transmitted by the distance measuring sensor to control the servo motor to perform positioning adjustment.

[0030] In some specific implementations, the rotating mechanism 6 includes a rotating support rod 601 and a rotating support wheel 602, one end of the plurality of rotating support rods 601 is connected to the fixed frame 1, and the other end is rotatably connected to the rotating support wheel 602, and a groove raceway 603 matching the rotating support wheel 602 is formed on the rotating frame 2; specifically, referring to the figure, three groups of rotating support rods 601 and rotating support wheels 602 are evenly arranged along the circumference of the fixed frame 1, and the three rotating support wheels 602 are clamped in the groove raceway 603 of the inner circle of the rotating support rod 601. Under the positioning and matching action of the rotating support wheel 602 and the groove raceway 603, the rotating frame 2 is coaxial with the fixed frame 1, and the rotating frame 2 can rotate around the central axis relative to the fixed frame 1.

[0031] In some specific embodiments, the displacement mechanism 5 includes an operating handle 501 and a displacement transmission unit 502. The displacement transmission unit 502 is arranged on the fixed frame 1 corresponding to the rotating support rod 601. The operating handle 501 is connected to the rotating support rod 601 through the displacement transmission unit 502, so that the operating handle 501 can be rotated to drive the rotating support rod 601 to drive the rotating support wheel 602 to move axially. Each rotating support wheel 602 drives the rotating frame 2 to move axially together with the bearing end cover 200, and the operation is convenient and reliable.

[0032] In some specific embodiments, the displacement transmission unit 502 includes a displacement transmission mounting seat 502-1 and a displacement transmission gear 502-2, the displacement transmission gear 502-2 is arranged in the displacement transmission mounting seat 502-1, the fixed frame 1 is provided with a guide through hole extending in the axial direction, the end of the rotating support rod 601 facing away from the rotating support wheel 602 extends from the guide through hole to the displacement transmission mounting seat 502-1, the extended end of the rotating support rod 601 is provided with a rack structure 601-1 meshing with the displacement transmission gear 502-2, the operating handle 501 is arranged outside the displacement transmission mounting seat 502-1, and the operating handle 501 is used to drive the displacement transmission gear 502-2 to rotate. It should be noted that the above-mentioned rack and pinion transmission structure is only a specific embodiment of the displacement transmission unit 502, and is not a limitation on the protection scope of the present invention. It is conceivable that the displacement transmission unit 502 can also adopt a worm gear transmission structure to realize the conversion of the rotational motion of the operating handle 501 into the axial linear motion of the rotating support rod 601.

[0033] Furthermore, each rotating support rod 601 is correspondingly provided with a displacement transmission unit 502, and a synchronous transmission unit 503 is provided between adjacent displacement transmission units 502, and both ends of the synchronous transmission unit 503 are respectively connected to the displacement transmission gears 502-2 corresponding to the adjacent displacement transmission units 502, so that each displacement transmission gear 502-2 rotates synchronously. Figure 4The synchronous transmission unit 503 includes a plurality of transmission shafts 503-1 and universal joints 503-2, wherein universal joints 503-2 are arranged between adjacent transmission shafts 503-1 to realize synchronous rotation of each transmission shaft 503-1, and the transmission shafts 503-1 at the head and tail are respectively connected to the displacement transmission gear 502-2 at one end facing away from the universal joint 503-2, so that when only one operating handle 501 is operated, the displacement transmission gear 502-2 of each displacement transmission unit 502 rotates synchronously, ensuring the synchronous axial displacement of each rotating support rod 601, thereby avoiding the offset problem of the bearing end cover 200 during the axial displacement due to asynchronism.

[0034] It should be noted that see Figure 4 The fixed frame 1 is a split frame composed of a first frame and a second frame. Therefore, a synchronous transmission unit 503 can be set only between the two displacement transmission units 502 on the first frame 1a. When the bearing end cover 200 is axially displaced, the operating handles 501 on the first frame 1a and the second frame 1b are synchronously controlled. Alternatively, a detachable transmission shaft 503-1 is used at the connection between the first frame 1a and the second frame 1b. When the first frame 1a and the second frame 1b are connected, the two parts of the transmission shaft 503-1 are threadedly connected to ensure the synchronization of the rotation of each displacement transmission gear 502-2. In addition, a servo motor can be used to replace the operating handle 501. The servo motor drives the displacement transmission gear 502-2 to realize the automatic control of the axial displacement of the rotating frame 2.

[0035] In some specific embodiments, the displacement transmission gear 502-2 is a ratchet gear, and a pawl cooperating with the ratchet gear is also provided in the displacement transmission mounting seat 502-1, thereby forming a ratchet mechanism (not shown in the figure), and the operating handle 501 is connected to the pawl, so that the axial movement of the bearing end cover 200 can be driven by the operating rotating frame 2 for unidirectional movement, so as to prevent the bearing end cover 200 from moving in the opposite direction and causing a collision problem.

[0036] In some specific embodiments, the support member 4 includes an adjusting fastening bolt 401 and an adjusting mounting seat 402. The adjusting fastening bolt 401 is installed on the rotating frame 2 through the adjusting mounting seat 402 so that the displacement of the adjusting fastening bolt 401 can be adjusted radially. The adjusting fastening bolt 401 is used to be threadedly connected to the mounting hole of the bearing end cover 200. The bearing end cover disassembly and assembly device of the present invention can radially adjust the fastening bolt 401, thereby fixing bearing end covers 200 of different diameters, and can be compatible with the use requirements of different models and end covers of different diameters. Specifically, the adjustment mounting seat 402 is accommodated in the guide groove 201 of the rotating frame 2, and the guide direction of the guide groove 201 is the radial direction of the rotating frame 2. A long hole is formed in the adjustment mounting seat 402, and a mounting hole corresponding to the long hole is formed at one end of the guide groove 201. The fastening bolt passes through the long hole and the mounting hole to fix the adjustment mounting seat 402 to the rotating frame 2. The other end of the adjustment mounting seat 402 extends outward in the radial direction, and a guide hole for the adjustment fastening bolt 401 to pass through is formed at the extended end. The extended end of the adjustment fastening bolt 401 is used to be threadedly connected with the mounting hole of the bearing end cover 200 to achieve a rigid connection between the rotating frame 2 and the bearing end cover 200; and in order to avoid the axial movement of the adjustment fastening bolt 401 relative to the adjustment mounting seat 402 during the axial displacement process, fastening nuts are respectively arranged on both sides of the guide hole of the adjustment mounting seat 402. It should be noted that at least three groups of support members 4 are evenly arranged along the circumference of the rotating frame 2 to form a stable rigid connection with the bearing end cover 200.

[0037] In some specific embodiments, see Figure 5 A handle 7 is provided on the outer circumferential surface of the rotating frame 2, so that the operator can hold the handle 7 to rotate the rotating frame 2. Furthermore, a plurality of handles 7 can be evenly arranged along the circumference of the rotating frame 2, and when the rotating frame 2 is at different rotation angles, the handles 7 are within the operable range of the operator, thereby improving the convenience of operation.

[0038] In order to better understand the bearing end cover disassembly and assembly device of the present invention, its use process is described below in conjunction with some specific implementation methods.

[0039] S1: Install the fixed frame 1 on the shaft body 100. The fixed frame 1 is composed of a first frame body 1a and a second frame body 1b. The connection between the first frame body 1a and the second frame body 1b is threadedly connected by a positioning pin 1c and a positioning fastening nut 1d. After the fixed frame 1 is assembled, adjust the extension length of the positioning adjustment screw 301 at various locations on the fixed frame 1, thereby adjusting the distance between the inner ring of the fixed frame 1 and the outer peripheral surface of the shaft body 100, so as to adjust the concentricity of the fixed frame 1 and the shaft body 100 to achieve coaxiality between the two, and lock the positioning adjustment screw 301 relative to the fixed frame 1 by fastening the nut; S2: Install the rotating frame 2, which is also composed of a first frame body 1a and a second frame body 1b. The grooved raceways 603 of the first frame body 1a and the second frame body 1b are mounted on the rotating support wheel 602. The connection between the first frame body 1a and the second frame body 1b is threadedly connected by a positioning pin 1c and a positioning fastening nut 1d to realize the assembly of the rotating frame 2. S3: Rotate the operating handle 501 to drive the displacement transmission gear 502-2 to rotate. Each displacement transmission gear 502-2 realizes synchronous rotation under the joint action of the transmission shaft 503-1 and the universal joint 503-2, so that each rotation support rod 601 can be synchronously axially displaced under the gear rack transmission, and the rotating frame 2 is driven to approach the bearing end cover 200; S4: Rotate the rotating frame 2 so that the support member 4 turns to the position of the mounting hole 400 on the bearing end cover 200, and then radially move the adjusting mounting seat 402 so that the adjusting fastening bolt 401 is aligned with the mounting hole 400, and then screw the adjusting fastening bolt 401 into the mounting hole 400 for threaded connection, and then axially fix and lock the adjusting fastening bolt 401 through the fastening nuts on both sides of the guide hole of the adjusting mounting seat 402, and lock the adjusting mounting seat 402, so as to realize the rigid connection between the bearing end cover 200 and the rotating frame 2; S5: Reversely rotate the operating handle 501 to drive the displacement transmission gear 502-2 to rotate, so as to drive the rotating frame 2 to drive the bearing end cover 200 to move axially until it moves to the shaft body part with a smaller diameter. There is a large gap between the inner ring of the bearing end cover 200 and the shaft body 100. The large gap can effectively avoid the collision between the internal sealing ring 300 and the shaft body 100, and facilitate the removal of the bearing end cover from the shaft body 100, thereby separating the bearing end cover 200 from the shaft body 100, and completing the end cover disassembly: S6: Before the end cover is re-rotated, the rotating frame 2 is controlled by the handle 7 to rotate 360° along the central axis, so as to complete the application of sealant to the sealing end surface of the bearing end cover 200, and the sealing ring 300 is checked circumferentially to see if it is in good condition; S7: Rotate the operating handle 501 to drive the displacement transmission gear 502-2 to rotate. Each displacement transmission gear 502-2 realizes synchronous rotation under the joint action of the transmission shaft 503-1 and the universal joint 503-2, so that each rotating support rod 601 can be synchronously displaced axially under the gear rack transmission, drive the rotating frame 2 to drive the bearing end cover 200 to move to the reinstallation position, and adjust the rotation position through the handle 7 to facilitate the reinstallation of the end cover.

[0040] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0041] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0042] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A bearing end cover disassembly and assembly device, characterized in that: include: A fixed frame (1), the fixed frame (1) being used for being fixedly mounted on the shaft body (100), A rotating frame (2), the rotating frame (2) being used for being sleeved on the shaft body (100), the rotating frame (2) being provided with a support member (4), the support member (4) being used for being connected to a mounting hole of a bearing end cover (200); A rotating mechanism (6), the rotating mechanism (6) being arranged between the fixed frame (1) and the rotating frame (2), so that the rotating frame (2) can be rotatably connected to the fixed frame (1); A displacement mechanism (5), the displacement mechanism (5) being arranged on the fixed frame (1), the displacement mechanism (5) being used to drive the rotating mechanism (6) to drive the rotating frame (2) to move axially; A positioning adjustment mechanism (3), the positioning adjustment mechanism (3) being arranged on the fixed frame (1) and used for adjusting the relative position of the fixed frame (1) and the shaft body (100) so that the rotation axis of the rotating frame (2) is coaxial with the axial direction of the shaft body (100).

2. The bearing end cover disassembly and assembly device according to claim 1, characterized in that: The fixed frame (1) is sleeved on the shaft body (100), and the fixed frame (1) and the rotating frame (2) are coaxial.

3. The bearing end cover disassembly and assembly device according to claim 2, characterized in that: The positioning adjustment mechanism comprises a positioning adjustment screw (301) and a positioning adjustment hole (302); a plurality of the positioning adjustment holes (302) are evenly arranged on the fixed frame (1) along the circumferential direction; the positioning adjustment screw (301) extends from the positioning adjustment hole (302) from the outside to the inside so as to be radially abutted against the outer circumferential surface of the shaft body (100); and the positioning adjustment screw (301) is threadedly connected to the positioning adjustment hole (302).

4. The bearing end cover disassembly and assembly device according to claim 2, characterized in that: The rotating mechanism (6) comprises a rotating support rod (601) and a rotating support wheel (602); one end of a plurality of the rotating support rods (601) is connected to the fixed frame (1), and the other end is rotatably connected to the rotating support wheel (602); and a grooved raceway (603) matching the rotating support wheel (602) is formed on the rotating frame (2).

5. The bearing end cover disassembly and assembly device according to claim 4, characterized in that: The displacement mechanism (5) comprises an operating handle (501) and a displacement transmission unit (502); the displacement transmission unit (502) is arranged on the fixed frame (1) corresponding to the rotating support rod (601); the operating handle (501) is connected to the rotating support rod (601) through the displacement transmission unit (502), so that the operating handle (501) can be rotated to drive the rotating support rod (601) to drive the rotating support wheel (602) to move axially.

6. The bearing end cover disassembly and assembly device according to claim 5, characterized in that: The displacement transmission unit (502) comprises a displacement transmission mounting seat (502-1) and a displacement transmission gear (502-2); the displacement transmission gear (502-2) is arranged in the displacement transmission mounting seat (502-1); the fixed frame (1) is provided with a guide through hole extending in the axial direction; one end of the rotating support rod (601) facing away from the rotating support wheel (602) extends from the guide through hole to the displacement transmission mounting seat (502-1); the extended end of the rotating support rod (601) is provided with a rack structure (601-1) meshing with the displacement transmission gear (502-2) for transmission; the operating handle (501) is arranged outside the displacement transmission mounting seat (502-1), and the operating handle (501) is used to drive the displacement transmission gear (502-2) to rotate.

7. The bearing end cover disassembly and assembly device according to claim 6, characterized in that: Each of the rotating support rods (601) is correspondingly provided with the displacement transmission unit (502), a synchronous transmission unit (503) is provided between adjacent displacement transmission units (502), and two ends of the synchronous transmission unit (503) are respectively connected to the displacement transmission gears (502-2) corresponding to the adjacent displacement transmission units (502), so that the displacement transmission gears (502-2) rotate synchronously.

8. The bearing end cover disassembly and assembly device according to claim 6, characterized in that: The displacement transmission gear (502-2) is a ratchet gear, a pawl matching the ratchet gear is also arranged in the displacement transmission mounting seat (502-1), and the operating handle (501) is connected to the pawl.

9. The bearing end cover disassembly and assembly device according to any one of claims 1 to 8, characterized in that: The support member (4) comprises an adjusting fastening bolt (401) and an adjusting mounting seat (402); the adjusting fastening bolt (401) is mounted on the rotating frame (2) via the adjusting mounting seat (402) so as to be able to adjust the displacement of the adjusting fastening bolt (401) in a radial direction; the adjusting fastening bolt (401) is used for being threadedly connected to a mounting hole of the bearing end cover (200).

10. The bearing end cover disassembly and assembly device according to any one of claims 1 to 8, characterized in that: The fixed frame (1) and / or the rotating frame (2) comprises a first frame body and a second frame body which are separately arranged, the first frame body and the second frame body are connected to each other to form a closed annular frame body, and a detachable positioning connection structure is provided at the connection between the first frame body and the second frame body.

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