Bearing auxiliary fixture

Abstract

A bearing auxiliary fixture, applicable to a bearing inner ring. The bearing auxiliary fixture comprises a base (7), an adjustment support (8), and a negative-pressure fixture (3). The adjustment support (8) is arranged above the base (7) and is configured to be connected to an end portion of a rotating shaft (2); the negative-pressure fixture (3) is configured to be sleeved outside the rotating shaft and to abut against the top end surface or bottom end surface of a bearing (4); and the negative-pressure fixture (3) is arranged above the adjustment support. At least one of the adjustment support (8) and the negative-pressure fixture (3) is movably connected to the base (7); and when the adjustment support (8) and the negative-pressure fixture (3) are close to each other, the bearing (4) can be sleeved on the rotating shaft (2); or, when the adjustment support (8) and the negative-pressure fixture (3) are away from each other, the bearing (4) can be detached from the rotating shaft (2). By movably connecting the at least one of the adjustment support (8) and the negative-pressure fixture (3) to the base (7), the distance between the adjustment support (8) and the negative-pressure fixture (3) can be adjusted, so that the bearing can be sleeved on the rotating shaft, or the bearing can be detached from the rotating shaft, thereby improving the assembly precision of the bearing.

Description

Bearing auxiliary tooling

[0001] This application claims priority to Chinese Patent Application No. 2024232615437, filed on December 27, 2024, entitled “Bearing Auxiliary Tooling”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure belongs to the field of wind turbine generator bearing assembly technology, and particularly relates to a bearing auxiliary tooling. Background Technology

[0003] Bearing assembly precision refers to the accuracy and consistency of bearings during the assembly process, which directly affects the bearing's performance and lifespan.

[0004] Currently, bearing assembly and disassembly tools cannot meet the accuracy requirements of bearing assembly, and there are often risks of negative pressure clearance exceeding tolerance, jamming during disassembly, and bearing damage. Summary of the Invention

[0005] The main objective of this disclosure is to provide a bearing auxiliary tooling to improve bearing assembly accuracy.

[0006] To achieve the above objectives, this disclosure provides the following technical solution:

[0007] In one aspect, this disclosure provides a bearing auxiliary fixture suitable for the inner ring of a bearing. The bearing auxiliary fixture includes a base, an adjusting support, and a negative pressure fixture. The adjusting support is disposed above the base and is used to connect to the end of a rotating shaft. The negative pressure fixture is used to be sleeved on the rotating shaft and abuts against the top or bottom end face of the bearing. The negative pressure fixture is disposed above the adjusting support. At least one of the adjusting support and the negative pressure fixture is movably connected to the base. When the adjusting support and the negative pressure fixture are close together, the bearing can be sleeved on the rotating shaft; or, when the adjusting support and the negative pressure fixture are far apart, the bearing can be detached from the rotating shaft.

[0008] In one exemplary embodiment of this disclosure, the negative pressure fixture is used to abut against the top surface of the bearing. The bearing auxiliary fixture further includes a first telescopic member, which is connected between the adjusting support and the base. When the first telescopic member extends, it can lift the adjusting support upward, so that the bearing is sleeved on the rotating shaft. Alternatively, the first telescopic member is connected between the negative pressure fixture and the base, and when the first telescopic member retracts, it can pull the negative pressure fixture and drive the bearing to be sleeved on the rotating shaft.

[0009] Specifically, multiple first telescopic components are provided, and the multiple first telescopic components are arranged at equal angular intervals along the circumference of the base; and / or, the first telescopic component includes a telescopic cylinder, and the bearing auxiliary tooling includes a pressure detection device for detecting the working pressure of the first telescopic component.

[0010] In one embodiment, the bearing auxiliary tooling further includes a clamping screw. When the adjusting support is movably connected to the base, the clamping screw is connected between the negative pressure tooling and the base, so that the negative pressure tooling remains stationary relative to the base; or, when the negative pressure tooling is movably connected to the base, the clamping screw is connected between the adjusting support and the base, so that the adjusting support remains stationary relative to the base.

[0011] Specifically, at least one of the adjusting support and the negative pressure fixture that is movable relative to the base is defined as a movable part. The bearing auxiliary fixture also includes a guide part, one end of which is connected to one of the movable part and the base. The other of the movable part and the base is provided with a guide portion that matches the guide part. The guide portion can move along the guide part, so that the movable part can move closer to or further away from the base along the guide part.

[0012] In one embodiment, the guide member includes a guide post that extends vertically and has its bottom end fixed to the base. The guide portion is disposed on the movable member and includes a guide through hole or guide groove that matches the guide post.

[0013] In another exemplary embodiment of this disclosure, the top end of the guide post is configured such that its cross-section gradually decreases from bottom to top; and / or, a plurality of guide members are provided, and the plurality of guide members are arranged at equal angular intervals along the circumference of the base.

[0014] In one embodiment, the negative pressure fixture is used to abut against the bottom end face of the bearing, and the bearing auxiliary fixture further includes a second telescopic member connected between the negative pressure fixture and the base. When the second telescopic member extends, it can lift the negative pressure fixture upward to drive the bearing to disengage from the shaft. Alternatively, the second telescopic member is connected between the adjusting support and the base, and when the second telescopic member retracts, it can pull the shaft downward to disengage the bearing from the shaft.

[0015] In one embodiment, multiple second telescopic members are provided, and the multiple second telescopic members are arranged at equal angular intervals along the circumference of the base; and / or, the second telescopic member includes a telescopic cylinder, and the bearing auxiliary tooling further includes a pressure detection device for detecting the working pressure of the second telescopic member.

[0016] In another exemplary embodiment of this disclosure, the bearing auxiliary tooling further includes a lifting device for lifting at least one of the negative pressure tooling and the bearing and fitting the negative pressure tooling and the bearing onto the rotating shaft.

[0017] The bearing auxiliary tooling provided in this disclosure has at least the following beneficial effects: by movably connecting at least one of the adjusting support and the negative pressure tooling to the base, the distance between the adjusting support and the negative pressure tooling can be adjusted, thereby allowing the bearing to be fitted onto the rotating shaft or removed from the rotating shaft, thus improving the assembly accuracy of the bearing. Attached Figure Description

[0018] The above and / or other objects and advantages of this disclosure will become clearer from the following description of embodiments taken in conjunction with the accompanying drawings, in which:

[0019] Figure 1 is a structural diagram of a bearing auxiliary tooling provided in an exemplary embodiment of this disclosure.

[0020] Figure 2 is a structural diagram of a bearing auxiliary tooling provided in another exemplary embodiment of this disclosure.

[0021] Explanation of reference numerals in the attached drawings: 1. Lifting device; 2. Rotating shaft; 3. Negative pressure fixture; 4. Bearing; 5. Guide component; 6. First telescopic component; 7. Base; 8. Adjusting support; 9. Second telescopic component; 10. Clamping screw. Detailed Implementation

[0022] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be construed that the embodiments of this disclosure are limited to those described herein. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed descriptions will be omitted.

[0023] Referring to Figures 1 and 2, one aspect of this disclosure provides a bearing auxiliary fixture suitable for the inner ring of a bearing. The bearing auxiliary fixture includes a base 7, an adjusting support 8, and a negative pressure fixture 3. The adjusting support 8 is disposed above the base 7 and is used to connect the end of a rotating shaft 2. The negative pressure fixture 3 is used to sleeve over the rotating shaft 2 and abut against the top or bottom end face of the bearing, and is disposed above the adjusting support 8. At least one of the adjusting support 8 and the negative pressure fixture 3 is movably connected to the base 7. When the adjusting support 8 and the negative pressure fixture 3 are close together, the bearing can be sleeved on the rotating shaft 2; or, when the adjusting support 8 and the negative pressure fixture 3 are far apart, the bearing can be detached from the rotating shaft 2.

[0024] This disclosure allows the distance between the adjustable support 8 and the negative pressure fixture 3 to be adjusted by movably connecting at least one of them to the base 7. This enables the bearing to be fitted onto the rotating shaft 2 or removed from the rotating shaft 2, thereby improving the assembly accuracy of the bearing 4.

[0025] Specifically, when the rotating shaft 2 is connected to the adjusting support 8 and the negative pressure fixture 3 abuts against the top surface of the bearing, the distance between the adjusting support 8 and the negative pressure fixture 3 can be shortened by pushing the adjusting support 8 upward, thereby causing the bearing to be pressed tightly onto the rotating shaft 2; when the rotating shaft 2 is connected to the adjusting support 8 and the negative pressure fixture 3 abuts against the bottom surface of the bearing, the distance between the adjusting support 8 and the negative pressure fixture 3 can be widened by pushing the negative pressure fixture 3 upward. During this process, the bearing 4 will move upward relative to the rotating shaft 2 to disengage from the rotating shaft 2, but this is not the only limitation.

[0026] The above embodiment is illustrated by adjusting one of the support 8 and the negative pressure fixture 3 to be stationary relative to the base 7, while the other moves relative to the base 7. However, this is not a limitation. Both the support 8 and the negative pressure fixture 3 can be adjusted to move relative to the base 7 as needed, as long as the distance between the support 8 and the negative pressure fixture 3 meets the requirements.

[0027] Referring again to the attached drawings, the negative pressure fixture 3 is used to abut against the top surface of the bearing. For example, but not limited to, when the negative pressure fixture 3 remains stationary relative to the base 7, the bearing auxiliary fixture also includes a first telescopic member 6. The first telescopic member 6 is connected between the adjusting support 8 and the base 7. When the first telescopic member 6 extends, it can lift the adjusting support 8 upward to shorten the distance between the negative pressure fixture 3 and the adjusting support 8, so that the bearing is sleeved on the rotating shaft 2.

[0028] Referring to Figure 1, this embodiment is illustrated by taking the negative pressure fixture 3 as a stationary position relative to the base 7, lifting the adjusting support 8 upwards to lift the rotating shaft 2 upwards, and pressing the bearing 4 onto the rotating shaft 2.

[0029] It is understood that in this embodiment, the negative pressure tool 3 is used to press against the top surface of the bearing and remain relatively stationary with the base 7. The first telescopic member 6 is connected between the adjusting support 8 and the base 7 to increase the length of the first telescopic member 6, thereby increasing the distance between the adjusting support 8 and the base 7. At this time, the adjusting support 8 can be lifted upward to lift the rotating shaft 2 upward and press the bearing 4 tightly onto the rotating shaft 2 as an example for illustration, but it is not limited to this.

[0030] Alternatively, as needed, the adjusting support 8 can be configured to remain stationary relative to the base 7, with the first telescopic member 6 connecting the negative pressure fixture 3 and the base 7 to adjust the distance between the negative pressure fixture 3 and the base 7 by extending or retracting the first telescopic member 6. For example, but not limited to, when the first telescopic member 6 retracts, the negative pressure fixture 3 will move closer to the base 7 under the action of the first telescopic member 6. During this process, the distance between the negative pressure fixture 3 and the adjusting support 8 decreases, and the bearing 4 will be tightly fitted onto the rotating shaft 2 under the pulling action of the negative pressure fixture 3.

[0031] In this embodiment, the first telescopic member 6 can be a telescopic cylinder, such as, but not limited to, a telescopic hydraulic cylinder or a pneumatic cylinder. As an example, the first telescopic member 6 is described in this disclosure using a hydraulic cylinder as an example. In addition, the first telescopic member 6 can also be a lead screw assembly, but is not limited thereto.

[0032] As described above, at least one of the adjusting support 8 and the negative pressure fixture 3 is movable relative to the base 7, and this movable at least one is defined as a moving part in this disclosure. In this embodiment, multiple first telescopic members 6 are provided, and the multiple first telescopic members 6 are evenly arranged along the circumference of the base 7 so that the moving part can be uniformly stressed in the circumferential direction. The moving part as defined in this disclosure includes a component that can move relative to the base 7, and the moving part can be at least one of the adjusting support 8 and the negative pressure fixture 3. In order to avoid the adjusting support 8 from swaying, the multiple first telescopic members 6 have the same extension and retraction speed to maintain synchronous extension and retraction, but this is not a limitation.

[0033] This embodiment takes the first telescopic component 6 as a hydraulic cylinder and the bearing auxiliary tooling as an example including 6 sets of the first telescopic components 6. The 6 sets of the first telescopic components 6 are arranged at equal angles along the circumference of the base 7. The 6 sets of the first telescopic components 6 can extend and retract synchronously so that the bearing 4 can be tightly fitted onto the rotating shaft 2.

[0034] In the above embodiment, the negative pressure fixture 3 is pressed against the top surface of the bearing 4, and the bearing 4 is securely mounted on the rotating shaft 2 by reducing the distance between the adjusting support 8 and the negative pressure fixture, thereby realizing the assembly of the bearing 4 and the rotating shaft 2.

[0035] To improve the reliability of the bearing auxiliary tooling, referring to the accompanying drawings, the bearing auxiliary tooling also includes a clamping screw 10. With the adjusting support 8 movably connected to the base 7, the clamping screw 10 connects the negative pressure tool 3 and the base 7, ensuring that the negative pressure tool 3 is reliably connected to the base 7 and remains stationary relative to it. Multiple clamping screws 10 can be provided as needed, and these screws can be evenly distributed along the circumference of the base 7, but are not limited thereto. As an example, the clamping screw 10 can be a high-strength bolt, but is not limited thereto.

[0036] In an optional embodiment, with the negative pressure fixture 3 movably connected to the base 7, the clamping screw 10 is connected between the adjusting support 8 and the base 7, so that the adjusting support 8 is reliably connected to the base 7 and remains stationary relative to the base 7.

[0037] For ease of description, in this embodiment, the negative pressure fixture 3 is sleeved on the outer periphery of the rotating shaft 2 and abuts against the top surface of the bearing 4. The negative pressure fixture 3 is reliably connected to the base 7 by multiple clamping screws 10 and remains relatively stationary with respect to the base 7. At this time, under the limiting action of the negative pressure fixture 3, the bearing 4 remains stationary relative to the base 7. Multiple first telescopic members 6 are provided between the adjusting support 8 and the base 7. By adjusting the first telescopic members 6 to extend them, the adjusting support 8 is lifted upward. At this time, the rotating shaft 2 connected to the adjusting support 8 will be lifted upward, and the bearing 4 remains stationary. Therefore, during the lifting process, the rotating shaft 2 will be inserted into the bearing 4 and maintain a tight connection with the bearing 4, improving the assembly accuracy of the bearing 4.

[0038] To further improve the reliability of the bearing auxiliary tooling, the bearing auxiliary tooling also includes a guide 5 for guiding the movement of the moving part relative to the base 7.

[0039] Referring again to the attached drawings, the bearing auxiliary tooling also includes a guide member 5. One end of the guide member 5 is connected to one of the movable member and the base 7. The other of the movable member and the base 7 is provided with a guide portion that matches the guide member 5. The guide portion can move along the guide member, so that the movable member can move closer to or further away from the base 7 along the guide member.

[0040] When the movable part includes the adjusting support 8, one end of the guide 5 is connected to one of the adjusting support 8 and the base 7, and the other of the adjusting support 8 and the base 7 is provided with a guide part that matches the guide 5. The guide part can move along the guide, so that the adjusting support 8 can move closer to or further away from the base 7 along the guide.

[0041] Specifically, the adjusting support 8 is movably connected to the base 7. At this time, one end of the guide 5 can be connected to the base 7. In this embodiment, the guide 5 is used as a guide post as an example. The guide part that matches the guide 5 can be set on the adjusting support 8. For example, but not limited to, the guide part can be a guide through hole or a guide groove. During the movement of the guide part along the guide 5, the adjusting support 8 moves closer to or further away from the base 7.

[0042] This embodiment uses a guide member 5 with a cylindrical structure fixed to the base 7 and a guide hole set in the adjusting support 8 as an example for illustration, but it is not limited to this. In an optional embodiment, the guide part can also be set on the base 7, and the guide member 5 can be fixed to the adjusting support 8.

[0043] When the movable part includes the negative pressure fixture 3, that is, the negative pressure fixture 3 is movably connected to the base 7, one end of the guide 5 can be connected to either the negative pressure fixture 3 or the base 7. The other of the negative pressure fixture 3 and the base 7 is provided with a guide portion that matches the guide 5. For example, but not limited to, the guide portion can be a guide through hole or a guide groove. The guide portion can move along the guide, so that the negative pressure fixture 3 can move closer to or further away from the base 7 along the guide.

[0044] As an example, multiple guide members 5 are provided, and the multiple guide members 5 are arranged at equal angular intervals along the circumference of the base 7, but this is not a limitation.

[0045] The guide member 5 includes a guide post that extends vertically and whose bottom end is fixed to the base 7. A guide portion is disposed on the movable member and includes a guide through hole or guide groove that matches the guide post. The vertical direction is the same as the axial direction of the bearing 4.

[0046] To facilitate the accurate insertion of the guide post into the moving part and further improve the reliability of the bearing auxiliary tooling, the top part of the guide post is designed to have a gradually decreasing cross-section from bottom to top, but this is not a limitation.

[0047] As an example, the guide 5 provided in this disclosure is generally cylindrical, and the top part of the guide 5 is provided with a frustum-shaped structure whose cross-section gradually decreases from bottom to top, but is not limited thereto.

[0048] To facilitate the removal of bearing 4 from shaft 2, negative pressure fixture 3 can be positioned below bearing 4 and abut against the bottom surface of bearing 4. By increasing the distance between negative pressure fixture 3 and adjusting support 8, bearing 4 can be removed from shaft 2.

[0049] In this embodiment, the bearing auxiliary tooling also includes a second telescopic member 9, which is connected between the negative pressure tooling 3 and the base 7. When the second telescopic member 9 extends, it can lift the negative pressure tooling 3 upward to drive the bearing 4 to disengage from the rotating shaft 2; or, the second telescopic member 9 is connected between the adjusting support 8 and the base 7, and when the second telescopic member 9 retracts, it can pull the rotating shaft 2 downward to disengage the bearing 4 from the rotating shaft 2.

[0050] For ease of description, referring to Figure 2, this embodiment is illustrated by taking the second telescopic member 9 connected between the negative pressure fixture 3 and the base 7 as an example, but it is not limited to this.

[0051] As an example, the second telescopic member 9 can be a telescopic cylinder or a lead screw assembly, but is not limited thereto. For ease of description, this embodiment uses a hydraulic cylinder as an example to illustrate the second telescopic member 9. In an optional embodiment, multiple second telescopic members 9 can be provided, and the multiple second telescopic members 9 are arranged at intervals along the circumference of the base 7, for example, but not limited to, the second telescopic members 9 are evenly arranged along the circumference of the base 7.

[0052] This embodiment uses the second telescopic component 9 as a hydraulic cylinder and the bearing auxiliary tooling includes 6 sets of second telescopic components 9 as an example for explanation. The 6 sets of second telescopic components 9 are arranged at equal angles along the circumference of the base 7. The 6 sets of second telescopic components 9 can extend and retract synchronously so that the bearing 4 can be disengaged from the rotating shaft 2.

[0053] Furthermore, the bearing auxiliary tooling provided in this embodiment also includes a lifting tool 1, which is used to lift at least one of the negative pressure tooling 3 and the bearing 4 and to sleeve at least one of the negative pressure tooling 3 and the bearing 4 onto the rotating shaft 2.

[0054] As an example, the lifting device 1 can be positioned above the rotating shaft 2 to lift the negative pressure fixture 3 and place it onto the rotating shaft 2.

[0055] The bearing auxiliary tooling provided in this disclosure also includes a pressure detection device, which can be used to detect the working pressure of the first telescopic member 6 and / or the second telescopic member 9, so that the working pressure of the first telescopic member 6 or the second telescopic member 9 is maintained within a predetermined range, thereby further improving the reliability of the bearing auxiliary tooling. In this embodiment, the same set of pressure detection devices can be used to detect the working pressure of the first telescopic member 6 and the second telescopic member 9 respectively, or two sets of pressure detection devices can be used, with the two sets of pressure detection devices detecting the working pressure of the first telescopic member 6 and the second telescopic member 9 respectively.

[0056] In this embodiment, the steps for assembling the bearing 4 onto the rotating shaft 2 using a bearing auxiliary tooling are roughly as follows:

[0057] First, prepare base 7;

[0058] The guide member 5 and the first telescopic member 6 are respectively connected to the base 7, for example, but not limited to, fixing the bottom end of the guide member 5 and the bottom end of the first telescopic member 6 to the base 7 respectively;

[0059] The adjusting support 8 is connected above the base 7, for example, but not limited to, the top end of the first telescopic member 6 is fixed to the adjusting support 8, and the guide part of the adjusting support 8 is sleeved on the guide member 5.

[0060] The bottom end of the rotating shaft 2 is connected to the adjusting support 8, for example, but not limited to, the bottom end of the rotating shaft 2 and the adjusting support 8 are connected by fasteners;

[0061] Heat bearing 4 and negative pressure fixture 3 to a predetermined temperature;

[0062] The bearing 4 and the negative pressure fixture 3 are sequentially mounted on the rotating shaft 2. For example, but not limited to, the bearing 4 can be mounted on the rotating shaft 2 first, and then the negative pressure fixture 3 can be mounted on the rotating shaft 2. The negative pressure fixture 3 is then placed against the top surface of the bearing 4. During this process, the lifting device 1 can be used to lift the bearing 4 and the negative pressure fixture 3, but this is not a limitation.

[0063] The negative pressure fixture 3 is connected to the base 7 via the clamping screw 10;

[0064] Activate the first telescopic member 6 to stretch and lift the adjusting support 8 upward, while simultaneously lifting the rotating shaft 2 upward. For example, but not limited to, the first telescopic member 6 can be a hydraulic cylinder. After the bearing 4 is installed in the predetermined position of the rotating shaft 2, maintain the hydraulic pressure of the cylinder until the bearing 4 returns to room temperature. At this point, the assembly of the bearing 4 and the rotating shaft 2 is completed.

[0065] The steps for removing bearing 4 from shaft 2 using bearing-assisted tooling are roughly described as follows:

[0066] Install the negative pressure fixture 3 below the bearing 4 and make it abut against the bottom surface of the bearing 4;

[0067] The second telescopic member 9 is connected between the negative pressure fixture 3 and the base 7. For example, but not limited to, the second telescopic member 9 includes a hydraulic cylinder, the bottom end of which is connected to the base 7 and the top end of which is connected to the negative pressure fixture 3, but is not limited thereto.

[0068] Activate the second telescopic component 9 to extend it and lift the negative pressure fixture 3 upwards, while simultaneously lifting the bearing 4 upwards, so that the bearing 4 can be removed from the rotating shaft 2.

[0069] The bearing auxiliary tooling provided in this disclosure can be applied to the front bearing of a wind turbine generator set, and is particularly suitable for the inner ring of the front bearing.

[0070] In the description of this disclosure, it should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0071] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0072] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0073] The features, structures, or characteristics described in this disclosure can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the foregoing description to give a full understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of the specific details described, or other methods, components, materials, etc., can be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

Claims

1. A bearing auxiliary tooling suitable for the inner ring of a bearing, characterized in that, The bearing auxiliary tooling includes: Base (7), An adjusting support (8) is provided above the base (7) and is used to connect the end of the rotating shaft (2). A negative pressure fixture (3) is used to be sleeved outside the rotating shaft (2) and abut against the top or bottom surface of the bearing (4). The negative pressure fixture (3) is located above the adjusting support (8). At least one of the adjusting support (8) and the negative pressure fixture (3) is movably connected to the base (7). The adjusting support (8) and the negative pressure fixture (3) are close to each other, so that the bearing (4) is sleeved on the rotating shaft (2); or, the adjusting support (8) and the negative pressure fixture (3) are far apart from each other, so that the bearing (4) is disengaged from the rotating shaft (2).

2. The bearing auxiliary tooling as described in claim 1, characterized in that, The negative pressure fixture (3) is used to abut against the top surface of the bearing (4), and the bearing auxiliary fixture also includes a first telescopic member (6); wherein, The first telescopic member (6) is connected between the adjusting support (8) and the base (7). The first telescopic member (6) is used to extend to lift the adjusting support (8) upward, so that the bearing (4) is sleeved on the rotating shaft (2); or, The first telescopic member (6) is connected between the negative pressure fixture (3) and the base (7). The first telescopic member (6) is used to retract to pull the negative pressure fixture (3) and drive the bearing (4) to be sleeved on the rotating shaft (2).

3. The bearing auxiliary tooling as described in claim 2, characterized in that, Multiple first telescopic members (6) are provided, and the multiple first telescopic members (6) are arranged at equal angular intervals along the circumference of the base (7); and / or, The first telescopic component (6) includes a telescopic cylinder, and the bearing auxiliary tooling includes a pressure detection device for detecting the working pressure of the first telescopic component (6).

4. The bearing auxiliary tooling as described in claim 1, characterized in that, The bearing auxiliary tooling also includes a clamping screw (10), wherein, The adjusting support (8) is movably connected to the base (7), and the clamping screw (10) is connected between the negative pressure fixture (3) and the base (7), so that the negative pressure fixture (3) remains stationary relative to the base (7); or, The negative pressure fixture (3) is movably connected to the base (7), and the clamping screw (10) is connected between the adjusting support (8) and the base (7) so that the adjusting support (8) remains stationary relative to the base (7).

5. The bearing auxiliary tooling as described in claim 1, characterized in that, At least one of the adjusting support (8) and the negative pressure fixture (3) that is movable relative to the base (7) is defined as a movable part. The bearing auxiliary fixture also includes a guide (5). One end of the guide (5) is connected to one of the movable part and the base (7). The other of the movable part and the base (7) is provided with a guide portion that matches the guide (5). The guide portion can move along the guide, so that the movable part can move closer to or further away from the base (7) along the guide.

6. The bearing auxiliary tooling as described in claim 5, characterized in that, The guide member (5) includes a guide post that extends vertically and has its bottom end fixed to the base (7). The guide part is disposed on the movable member and includes a guide through hole or guide groove that matches the guide post.

7. The bearing auxiliary tooling as described in claim 6, characterized in that, The top portion of the guide post is configured such that its cross-section gradually decreases from bottom to top; and / or, Multiple guide members (5) are provided, and the multiple guide members (5) are arranged at equal angular intervals along the circumference of the base (7).

8. The bearing auxiliary tooling as described in claim 1, characterized in that, The negative pressure fixture (3) is used to abut against the bottom end face of the bearing (4), and the bearing auxiliary fixture also includes a second telescopic member (9), wherein, The second telescopic member (9) is connected between the negative pressure fixture (3) and the base (7). When the second telescopic member (9) extends, it can lift the negative pressure fixture (3) upward to drive the bearing (4) to disengage from the rotating shaft (2); or, The second telescopic member (9) is connected between the adjusting support (8) and the base (7). When the second telescopic member (9) retracts, it can pull the rotating shaft (2) downward to disengage the bearing (4) from the rotating shaft (2).

9. The bearing auxiliary tooling as described in claim 8, characterized in that, The second telescopic member (9) is provided in multiple forms, and the multiple second telescopic members (9) are arranged at equal angular intervals along the circumference of the base (7); and / or, The second telescopic component (9) includes a telescopic cylinder, and the bearing auxiliary tooling also includes a pressure detection device for detecting the working pressure of the second telescopic component (9).

10. The bearing auxiliary tooling as described in any one of claims 1-9, characterized in that, The bearing auxiliary tooling also includes a lifting device (1) for lifting at least one of the negative pressure tooling (3) and the bearing (4) and fitting at least one of the negative pressure tooling (3) and the bearing (4) onto the rotating shaft (2).

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