Bearing end cap dismounting device

Abstract

The application relates to a generator set mounting device, and provides a bearing end cover dismounting and mounting device which comprises a fixed frame, a rotating frame, a rotating mechanism, a displacement mechanism and a positioning adjusting mechanism. The fixed frame is used for being fixedly mounted on a shaft body. The rotating frame is used for being sleeved on the shaft body. The rotating frame is provided with a support which is used for being connected with a mounting hole of the 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 is used for driving the rotating mechanism to drive the rotating frame to move along the axial direction. The positioning adjusting mechanism is arranged on the fixed frame and is 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 application facilitates the dismounting and mounting of the bearing end cover, improves the dismounting and mounting efficiency, improves the assembly quality, and does not affect the sealing effect of the sealing ring.

Description

Technical Field

[0001] This invention relates to generator set installation equipment, and more specifically, to a bearing end cover disassembly and assembly device. Background Technology

[0002] The main shaft bearing is an important component of a wind turbine generator set. It bears radial force, axial force, bending moment and impact load on the side of the wind turbine, 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 periodically to check the internal condition of the bearing, and the internal grease should be removed or replaced when necessary to extend the service life of the bearing.

[0003] Currently, the main shaft bearing end cover is mainly removed and installed manually. However, with the development of larger units, the main bearing is getting bigger and the bearing end cover is getting heavier. Taking the current 5MW model in the industry as an example, the main bearing end cover weighs 250-300KG, making the disassembly and installation extremely inconvenient. During the removal of the end cover, multiple people are needed to remove it axially. During the removal process, components such as the sealing ring are prone to collision with the main shaft, causing damage to the components. Installing the sealing end cover by manually moving it along the axial direction can easily 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 facilitates the disassembly and installation of bearing end covers, improves disassembly and assembly efficiency, improves assembly quality, and does not affect the sealing effect of the sealing ring.

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

[0006] In some specific embodiments, the fixed frame is fitted onto the shaft, and the fixed frame and the rotating frame are coaxial.

[0007] In some specific embodiments, the positioning adjustment mechanism includes a positioning adjustment screw and positioning adjustment holes. A plurality of the positioning adjustment holes are evenly arranged circumferentially on the fixed frame. The positioning adjustment screw extends from the positioning adjustment holes from the outside to the inside to abut against the outer circumferential surface of the shaft in a radial direction. The positioning adjustment screw is threadedly connected to the positioning adjustment holes.

[0008] In some specific embodiments, the rotating mechanism includes rotating support rods and rotating support wheels. One end of each of the rotating support rods is connected to the fixed frame, and the other end is rotatably connected to the rotating support wheel. The rotating frame has grooved raceways that cooperate with the rotating support wheel.

[0009] In some specific embodiments, the displacement mechanism includes an operating handle and a displacement transmission unit. The displacement transmission unit is disposed on the fixed frame corresponding to the rotating support rod. 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 base and a displacement transmission gear. The displacement transmission gear is disposed within the displacement transmission mounting base. The fixed frame is provided with a guide through hole extending axially. One end of the rotating support rod facing away from the rotating support wheel extends from the guide through hole to the displacement transmission mounting base. The extended end of the rotating support rod is provided with a rack structure that meshes with the displacement transmission gear. The operating handle is disposed outside the displacement transmission mounting base and is used to drive the displacement transmission gear to rotate.

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

[0012] In some specific embodiments, the displacement transmission gear is a ratchet gear, and the displacement transmission mounting base is also provided with a pawl that cooperates with the ratchet gear, and the operating handle is connected to the pawl.

[0013] In some specific embodiments, the support includes an adjusting fastening bolt and an adjusting mounting seat. The adjusting fastening bolt is mounted on the rotating frame via the adjusting mounting seat to allow radial adjustment of the bolt's displacement. The adjusting fastening bolt is threaded into the mounting hole of the bearing end cap.

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

[0015] The beneficial effects of the present invention through the above solution are as follows: The bearing end cover disassembly and assembly device of this invention is fixedly mounted on the shaft body by a fixed frame and is equipped with a positioning adjustment mechanism to adjust the relative position of the fixed frame and the shaft body. This makes the rotation axis of the rotating frame coaxial with the axial direction of the shaft body, allowing the rotating frame to rotate relative to the fixed frame around the rotation axis. This allows the position of the support component to be adjusted so that it connects with the mounting hole on the bearing end cover. Furthermore, the rotating mechanism can be driven by a displacement mechanism to move the rotating frame axially, ensuring the accuracy of the axial movement of the bearing end cover during disassembly or installation. This effectively avoids collisions between components such as the inner ring seal and the shaft body during disassembly and assembly, greatly reducing the probability of component damage. Moreover, this device is easy to use, ensuring assembly quality while improving disassembly and assembly efficiency.

[0016] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the cross-sectional structure of the bearing end cover; Figure 2 This is a schematic diagram of the bearing end cover disassembly and assembly device of the present invention in use. Figure 3 This is a schematic diagram of a specific embodiment of the bearing end cover disassembly and assembly device of the present invention; Figure 4 This is a schematic diagram of a fixed frame structure; Figure 5 This is a schematic diagram of the rotating frame structure; Figure 6 This is a schematic diagram of the displacement mechanism.

[0018] Explanation of reference numerals in the attached figures 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 component; 401. Adjusting fastening bolt; 402. Adjusting mounting base; 5. Displacement mechanism; 501. Operating handle; 502. Displacement transmission unit; 502-1. Displacement transmission mounting base; 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. Locating pin; 1d. Locating fastening nut; 100. Shaft; 200. Bearing end cover; 300. Sealing ring; 400. Mounting hole. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention, and the scope of protection of the present invention is not limited to the specific embodiments described below.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "forming," "having," "setting," and "connecting," etc., should be interpreted broadly. For example, a connection can be a direct connection or an indirect connection through an intermediate medium; it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate connector; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] In this invention, unless otherwise specified, the directional terms "up," "down," "left," "right," "counterclockwise," etc., used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. The directional terms of this invention should be understood in conjunction with the actual installation state.

[0022] See Figure 1 and Figure 2A sealing ring 300 is provided on the inner ring of the bearing end cover 200. The sealing ring 300 is fitted onto the shaft 100, thereby sealing the bearing on the generator set main shaft. When disassembling or assembling the bearing end cover 200, it is necessary to ensure that it moves axially along the shaft 100 to prevent damage to the sealing ring caused by collision between the bearing end cover 200 and the shaft 100. Therefore, this invention provides a bearing end cover disassembly and assembly device, see [link to device]. Figures 2-6 As a specific embodiment of the bearing end cover disassembly and assembly device of the present invention, it includes a fixed frame 1, a rotating frame 2, a rotating mechanism 6, a displacement mechanism 5, and a positioning adjustment mechanism 3. The fixed frame 1 is fixedly installed on the shaft 100; the rotating frame 2 is sleeved on the shaft 100, and a support member 4 is provided on the rotating frame 2 for connection with the mounting hole of the bearing end cover 200; the rotating mechanism 6 is disposed between the fixed frame 1 and the rotating frame 2, so that the rotating frame 2 is rotatably connected to the fixed frame 1; the displacement mechanism 5 is disposed on the fixed frame 1, and the displacement mechanism 5 is used to drive the rotating mechanism 6 to move the rotating frame 2 axially; the positioning adjustment mechanism 3 is disposed on the fixed frame 1, and is used to adjust the relative position of the fixed frame 1 and the shaft 100, so that the rotation axis of the rotating frame 2 is coaxial with the axial direction of the shaft 100.

[0023] Based on the above basic embodiments, when disassembling and assembling the bearing end cover 200, the bearing end cover disassembly and assembly device of the present invention uses a fixed frame 1 to fix the entire device on the shaft 100, and uses a positioning adjustment mechanism 3 to adjust the relative position of the fixed frame 1 and the shaft 100, so that the rotation axis of the rotating frame 2 is coaxial with the axial direction of the shaft 100. After the fixed frame 1 is adjusted and positioned, the rotating frame 2 can be rotated around the axial direction of the shaft 100 to adjust the position of the support 4 so that it is aligned with the mounting hole on the bearing end cover 200. The support 4 is fixedly connected to the mounting hole. The displacement mechanism 5 drives the rotating mechanism 6 to move the rotating frame 2 along the axial direction of the shaft 100, thereby ensuring the accuracy of the axial movement of the bearing end cover 200 during disassembly or installation, effectively avoiding collisions between the inner ring sealing ring 300 and other components and the shaft 100 during disassembly and assembly, greatly reducing the probability of component damage. Moreover, the bearing end cover disassembly and assembly device of the present invention is convenient to use, and the mechanical mechanism ensures assembly quality while improving disassembly and assembly efficiency.

[0024] It should be noted that the shaft body 100 has shaft parts with different diameters, see [reference needed]. 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 is fitted. In the actual disassembly process, when the rotating frame 2 drives 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. This large gap can effectively prevent the internal sealing ring 300 from colliding with 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 fitted onto the shaft 100, and the fixed frame 1 and the rotating frame 2 are coaxial. Thus, during the positioning of the rotating frame 2, it is only necessary to adjust the fixed frame 1 to be coaxial with the shaft 100, making the positioning adjustment faster and more efficient. Theoretically, coaxial means that the central axes of the two components coincide. However, in the actual production and assembly process, there are unavoidable errors, and the central axes of the two components may have an angle or offset. However, it is 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 this invention.

[0026] It should be noted that the aforementioned fixed frame 1 and rotating frame 2 are provided corresponding to the shaft 100, and are both circular annular frames to facilitate coaxial positioning with the shaft 100. Furthermore, the fixed frame 1 and / or rotating frame 2 include a separately configured first frame 1a and a second frame 1b, see [reference needed]. Figure 4 The first frame 1a and the second frame 1b are connected to form a closed annular frame. A detachable positioning connection structure is provided at the connection between the first frame 1a and the second frame 1b. Specifically, the detachable positioning connection structure includes a positioning pin 1c and a positioning fastening nut 1d. A positioning hole is formed at the connection between the first frame 1a and the second frame 1b, through which the positioning pin 1c can pass, thereby realizing the positioning connection between the two. The protruding end of the positioning pin 1c can be connected with the positioning fastening nut 1d, thereby fastening the first frame 1a and the second frame 1b and preventing shaking during use, which would affect 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 circumferentially on the fixed frame 1. The positioning adjustment screw 301 extends from the positioning adjustment hole 302 from the outside to the inside to be used to abut against the outer circumferential surface of the shaft 100 radially. The positioning adjustment screw 301 is threadedly connected to the positioning adjustment hole 302, so that by rotating the positioning adjustment screw 301 clockwise and counterclockwise, its extension length from the positioning adjustment hole 302 can be controlled, thereby adjusting the distance between the inner ring of the fixed frame 1 and the outer circumferential surface of the shaft 100. With the cooperation of the positioning adjustment screws 301 in all directions, the concentricity of the fixed frame 1 and the shaft 100 is adjusted to achieve coaxiality between the two.

[0028] Specifically, see Figure 4 The device is equipped with three sets of positioning adjustment screws 301 and positioning adjustment holes 302, which are axially arranged at 180° intervals on the fixed frame 1. The three positioning adjustment screws 301 adjust the concentricity between the fixed frame 1 and the shaft 100, and also clamp the shaft 100 to fix the fixed frame 1 to the shaft 100. To ensure the stability of the fixed installation, a protective pad can be provided at the abutting end of the positioning adjustment screw 301. The protective pad is preferably a rubber pad, which can increase the friction between the positioning adjustment screw 301 and the shaft 100, and also protect the outer peripheral surface of the shaft 100. Furthermore, a pressure sensor can be provided at the abutting end of the positioning adjustment screw 301 to reflect the clamping effect through specific pressure values.

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

[0030] In some specific implementations, the rotating mechanism 6 includes rotating support rods 601 and rotating support wheels 602. One end of each rotating support rod 601 is connected to a fixed frame 1, and the other end is rotatably connected to a rotating support wheel 602. The rotating frame 2 has a grooved raceway 603 that cooperates with the rotating support wheel 602. Specifically, referring to the figure, three sets of rotating support rods 601 and rotating support wheels 602 are evenly arranged along the circumference of the fixed frame 1. The three rotating support wheels 602 are engaged in the grooved raceway 603 of the inner ring of the rotating support rod 601. Under the positioning and cooperation of the rotating support wheel 602 and the grooved raceway 603, the rotating frame 2 is coaxial with the fixed frame 1, and the rotating frame 2 can rotate relative to the fixed frame 1 around the central axis.

[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 disposed 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 and the bearing end cover 200 to move axially together, which is convenient and reliable to operate.

[0032] In some specific embodiments, the displacement transmission unit 502 includes a displacement transmission mounting base 502-1 and a displacement transmission gear 502-2. The displacement transmission gear 502-2 is disposed within the displacement transmission mounting base 502-1. The fixed frame 1 is provided with a guide through hole extending axially. 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 base 502-1. The extended end of the rotating support rod 601 is provided with a rack structure 601-1 that meshes with the displacement transmission gear 502-2. The operating handle 501 is disposed outside the displacement transmission mounting base 502-1 and is used to drive the displacement transmission gear 502-2 to rotate. It should be noted that the above-described gear and rack transmission structure is only one specific implementation of the displacement transmission unit 502 and is not a limitation on the scope of protection of the present invention. It is conceivable that the displacement transmission unit 502 can also adopt a worm gear transmission structure to realize 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. The two ends of the synchronous transmission unit 503 are respectively connected to the corresponding displacement transmission gears 502-2 of the adjacent displacement transmission units 502, so that each displacement transmission gear 502-2 rotates synchronously. For details, see [link to documentation]. Figure 4The synchronous transmission unit 503 includes several transmission shafts 503-1 and universal joints 503-2. Universal joints 503-2 are provided between adjacent transmission shafts 503-1 to achieve synchronous rotation of each transmission shaft 503-1. The ends of the transmission shafts 503-1 located at the beginning and end, facing away from the universal joints 503-2, are connected to displacement transmission gears 502-2. Thus, when only one operating handle 501 is operated, the displacement transmission gears 502-2 of each displacement transmission unit 502 can rotate synchronously, ensuring that each rotating support rod 601 moves axially synchronously, thereby avoiding the offset problem of the bearing end cover 200 during axial displacement caused by asynchrony.

[0034] It should be noted that, see Figure 4 The fixed frame 1 is a split frame consisting 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 can be 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 threaded together to ensure the synchronicity 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 gears 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 the displacement transmission mounting base 502-1 is also provided with a pawl that cooperates with the ratchet gear, thereby forming a ratchet mechanism (not shown in the figure). The operating handle 501 is connected to the pawl, so that when the rotating frame 2 drives the bearing end cover 200 to move axially, it is a unidirectional movement to prevent the bearing end cover 200 from moving in the opposite direction and causing a collision.

[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 mounted on the rotating frame 2 via 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 for threaded connection with 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 usage requirements of different models and end covers of different diameters. Specifically, the adjusting mounting base 402 is housed within the guide groove 201 of the rotating frame 2, with the guide groove 201 guiding in the radial direction of the rotating frame 2. An elongated hole is formed within the adjusting mounting base 402, and a mounting hole corresponding to this elongated hole is formed at one end of the guide groove 201. A fastening bolt passes through this elongated hole and the mounting hole to fix the adjusting mounting base 402 to the rotating frame 2. The other end of the adjusting mounting base 402 extends radially outward, and a guide hole is formed at the extended end for the adjusting fastening bolt 401 to pass through. The extended end of the adjusting fastening bolt 401 is threaded into the mounting hole of the bearing end cover 200, achieving a rigid connection between the rotating frame 2 and the bearing end cover 200. Furthermore, to prevent axial movement of the adjusting fastening bolt 401 relative to the adjusting mounting base 402 during axial displacement, fastening nuts are provided on both sides of the guide hole of the adjusting mounting base 402. It should be noted that at least three sets of support members 4 are evenly arranged circumferentially on 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, several handles 7 can be evenly arranged along the circumference of the rotating frame 2. When the rotating frame 2 is at different rotation angles, the handles 7 are within the operator's operating range, improving the ease of operation.

[0038] To better understand the bearing end cover disassembly and assembly device of the present invention, the following describes its usage process in conjunction with some specific embodiments.

[0039] S1: Install the fixed frame 1 on the shaft 100. The fixed frame 1 is composed of a first frame 1a and a second frame 1b. The connection between the first frame 1a and the second frame 1b is made 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 screws 301 at various points on the fixed frame 1 to adjust the distance between the inner ring of the fixed frame 1 and the outer circumference of the shaft 100, so as to adjust the concentricity of the fixed frame 1 and the shaft 100 and achieve coaxiality. The positioning adjustment screws 301 are locked relative to the fixed frame 1 by fastening the nuts. S2: Install the rotating frame 2, which is also composed of a first frame 1a and a second frame 1b. Fit the grooved raceway 603 of the first frame 1a and the second frame 1b onto the rotating support wheel 602. Connect the first frame 1a and the second frame 1b with a positioning pin 1c and a positioning fastening nut 1d to achieve the assembly of the rotating frame 2. S3: Rotating the operating handle 501 drives the displacement transmission gear 502-2 to rotate. Under the combined action of the transmission shaft 503-1 and the universal joint 503-2, each displacement transmission gear 502-2 rotates synchronously, so that under the gear and rack transmission, each rotating support rod 601 can be synchronously axially displaced, driving the rotating frame 2 to approach the bearing end cover 200. S4: Rotate the rotating frame 2 so that the support 4 is positioned at the mounting hole 400 on the bearing end cover 200. Then move the adjusting mounting seat 402 radially so that the adjusting fastening bolt 401 is aligned with the mounting hole 400. Then screw the adjusting fastening bolt 401 into the mounting hole 400 for threaded connection. Then, use the fastening nuts on both sides of the guide hole of the adjusting mounting seat 402 to axially fix and lock the adjusting fastening bolt 401, and lock the adjusting mounting seat 402 to achieve a rigid connection between the bearing end cover 200 and the rotating frame 2. S5: Reverse rotation of the operating handle 501 drives the displacement transmission gear 502-2 to rotate, thereby driving the rotating frame 2 to move the bearing end cover 200 axially until it moves to the part of the shaft with a smaller diameter. There is a large gap between the inner ring of the bearing end cover 200 and the shaft 100. This large gap can effectively prevent the internal sealing ring 300 from colliding with the shaft 100, making it easy to remove the bearing end cover from the shaft 100, thereby separating the bearing end cover 200 from the shaft 100 and completing the end cover disassembly. S6: Before the end cover is rotated again, the rotating frame 2 is controlled to rotate 360° along the central axis by the handle 7, so as to complete the application of sealant on the sealing end face of the bearing end cover 200 and check the condition of the sealing ring 300 around the circumference. S7: Rotating the operating handle 501 drives the displacement transmission gear 502-2 to rotate. Under the combined action of the transmission shaft 503-1 and the universal joint 503-2, each displacement transmission gear 502-2 rotates synchronously, so that under the gear and rack transmission, each rotating support rod 601 can be synchronously axially displaced, driving the rotating frame 2 to move the bearing end cover 200 to the reassembly position, and the rotation position can be adjusted by the handle 7 to facilitate the reassembly of the end cover.

[0040] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

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

[0042] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A bearing end cover disassembly and assembly device, characterized in that, include: A fixed frame (1) is used to fix the shaft (100) to the shaft body (100). A rotating frame (2) is used to be sleeved on the shaft (100). A support member (4) is provided on the rotating frame (2). The support member (4) is used to connect with the mounting hole of the bearing end cover (200). A rotating mechanism (6) is disposed between the fixed frame (1) and the rotating frame (2) so that the rotating frame (2) is rotatably connected to the fixed frame (1). The displacement mechanism (5) is disposed on the fixed frame (1) and is used to drive the rotation mechanism (6) to move the rotation frame (2) axially. Positioning adjustment mechanism (3), which is disposed on the fixed frame (1) for adjusting the relative position of the fixed frame (1) and the shaft (100) so that the rotation axis of the rotating frame (2) is coaxial with the axial direction of the shaft (100); The rotating mechanism (6) includes a rotating support rod (601) and a rotating support wheel (602). One end of the rotating support rod (601) is connected to the fixed frame (1), and the other end is rotatably connected to the rotating support wheel (602). The rotating frame (2) has a grooved raceway (603) that cooperates with the rotating support wheel (602). The displacement mechanism (5) includes an operating handle (501) and a displacement transmission unit (502). The displacement transmission unit (502) is disposed 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. The displacement transmission unit (502) includes a displacement transmission mounting base (502-1) and a displacement transmission gear (502-2). The displacement transmission gear (502-2) is disposed in the displacement transmission mounting base (502-1). The fixed frame (1) is provided with a guide through hole extending axially. 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 base (502-1). The extended end of the rotating support rod (601) is provided with a rack structure (601-1) that meshes with the displacement transmission gear (502-2). The operating handle (501) is disposed outside the displacement transmission mounting base (502-1) and is used to drive the displacement transmission gear (502-2) to rotate. The displacement transmission gear (502-2) is a ratchet gear, and the displacement transmission mounting base (502-1) is also provided with a pawl that cooperates with the ratchet gear. The operating handle (501) is connected to the pawl.

2. The bearing end cover disassembly and assembly device according to claim 1, characterized in that, The fixed frame (1) is fitted onto the shaft (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 includes a positioning adjustment screw (301) and a positioning adjustment hole (302). A plurality of the 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 to abut against the outer circumferential surface of the shaft (100) in the radial direction. 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, Each of the rotating support rods (601) is provided with a displacement transmission unit (502), and a synchronous transmission unit (503) is provided between adjacent displacement transmission units (502). The 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 each displacement transmission gear (502-2) rotates synchronously.

5. The bearing end cover disassembly and assembly device according to any one of claims 1-4, characterized in that, The support member (4) includes 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 that the displacement of the adjusting fastening bolt (401) can be adjusted radially. The adjusting fastening bolt (401) is used for threaded connection with the mounting hole of the bearing end cover (200).

6. The bearing end cover disassembly and assembly device according to any one of claims 1-4, characterized in that, The fixed frame (1) and / or the rotating frame (2) include a first frame and a second frame that are separately arranged. The first frame and the second frame are connected to each other to form a closed ring frame, and a detachable positioning connection structure is provided at the connection between the first frame and the second frame.

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