Bearing auxiliary tool

Abstract

The utility model provides a bearing auxiliary tool which is suitable for a bearing inner ring, the bearing auxiliary tool comprises a base, an adjusting support and a negative pressure tool, the adjusting support is arranged above the base and used for being connected with the end of a rotating shaft, and the negative pressure tool is used for being arranged outside the rotating shaft in a sleeving mode and abutting against the top end face or the bottom end face of a bearing. The negative pressure tool is arranged above the adjusting support, at least one of the adjusting support and the negative pressure tool is movably connected to the base, and when the adjusting support and the negative pressure tool are close to each other, the bearing can be arranged on the rotating shaft in a sleeving mode; or when the adjusting support is far away from the negative pressure tool, the bearing can be separated from the rotating shaft, and at least one of the adjusting support and the negative pressure tool is movably connected to the base, so that the distance between the adjusting support and the negative pressure tool can be adjusted, and the bearing can be arranged on the rotating shaft in a sleeving manner or detached from the rotating shaft; the assembly precision of the bearing is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of bearing assembly, and particularly relates to a bearing auxiliary tool. BACKGROUND

[0002] Bearing assembly precision refers to the accuracy and consistency of bearings in the assembly process, which will directly affect the service performance and service life of bearings.

[0003] At present, bearing disassembly and assembly tool cannot meet the bearing assembly precision requirement, and there are often risks of negative pressure gap out-of-tolerance, disassembly process jamming and bearing damage. CONTENT OF THE INVENTION

[0004] The main purpose of the present disclosure is to provide a bearing auxiliary tool to improve bearing assembly precision.

[0005] To achieve the above purpose, the present disclosure provides the following technical solutions.

[0006] In one aspect of the present disclosure, a bearing auxiliary tool is provided, which is suitable for a bearing inner ring, and comprises a base, an adjusting support and a negative pressure tool. The adjusting support is arranged above the base and is used to connect an end of a rotating shaft. The negative pressure tool is used to be sleeved outside the rotating shaft and abut against a top end face or a bottom end face of the bearing. The negative pressure tool is arranged above the adjusting support. At least one of the adjusting support and the negative pressure tool is movably connected to the base. When the adjusting support and the negative pressure tool are close to each other, the bearing can be sleeved on the rotating shaft. Alternatively, when the adjusting support and the negative pressure tool are away from each other, the bearing can be separated from the rotating shaft.

[0007] In an example embodiment of the present disclosure, the negative pressure tool is used to abut against the top end face of the bearing. The bearing auxiliary tool further comprises a first telescopic member. The first telescopic member is connected between the adjusting support and the base. When the first telescopic member is elongated, the adjusting support can be lifted upward, so that the bearing is sleeved on the rotating shaft. Alternatively, the first telescopic member is connected between the negative pressure tool and the base. When the first telescopic member is contracted, the negative pressure tool can be pulled and the bearing is driven to be sleeved on the rotating shaft.

[0008] Specifically, a plurality of first telescopic members are arranged at equal angles along the circumference of the base. Alternatively, the first telescopic member comprises a telescopic cylinder. The bearing auxiliary tool comprises a pressure detection device for detecting the working pressure of the first telescopic member.

[0009] Optionally, the bearing auxiliary tool further comprises a pressing screw, which is connected between the negative pressure tool and the base to keep the negative pressure tool stationary relative to the base when the adjusting support is movably connected to the base, or which is connected between the adjusting support and the base to keep the adjusting support stationary relative to the base when the negative pressure tool is movably connected to the base.

[0010] In particular, the part that enables at least one of the negative pressure tool and the adjusting support to move relative to the base is a movable part, and the bearing auxiliary tool further comprises a guide part, one end of the guide part being connected to one of the movable part and the base, and the other of the movable part and the base being provided with a guide portion that matches the guide part and is movable along the guide part, so that the movable part can move towards or away from the base along the guide part.

[0011] Further, the guide part comprises a guide column that extends in a vertical direction and has a bottom end fixed to the base, and the guide portion is provided on the movable part and comprises a guide through hole or a guide slot that matches the guide column.

[0012] In another example embodiment of the present disclosure, a top end of the guide column is arranged to gradually decrease in cross section from bottom to top; and / or, a plurality of guide parts are arranged at equal angles along a circumference of the base.

[0013] Optionally, the negative pressure tool is arranged to abut against a bottom end surface of the bearing, and the bearing auxiliary tool further comprises a second telescopic part, which is connected between the negative pressure tool and the base to lift the negative pressure tool upwards when the second telescopic part is extended, so as to drive the bearing to disengage from the rotating shaft; or which is connected between the adjusting support and the base to pull the rotating shaft downwards when the second telescopic part is retracted, so as to drive the bearing to disengage from the rotating shaft.

[0014] Further, a plurality of second telescopic parts are arranged at equal angles along a circumference of the base; and / or, the second telescopic part comprises a telescopic cylinder, and the bearing auxiliary tool further comprises a pressure detection device for detecting a working pressure of the second telescopic part.

[0015] In another example embodiment of the present disclosure, the bearing auxiliary tool further comprises a lifting device for lifting at least one of the negative pressure tool and the bearing and sleeving at least one of the negative pressure tool and the bearing on the rotating shaft.

[0016] The bearing auxiliary tool provided by the present disclosure has at least the following beneficial effects: by movably connecting at least one of the adjusting support and the negative pressure tool to the base, the distance between the adjusting support and the negative pressure tool can be adjusted, so that the bearing can be mounted on the rotating shaft or dismounted from the rotating shaft, and the assembly precision of the bearing is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or other aspects and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which:

[0018] Figure 1 A structural diagram of a bearing auxiliary tool according to an exemplary embodiment of the present disclosure is provided.

[0019] Figure 2 A structural diagram of a bearing auxiliary tool according to another exemplary embodiment of the present disclosure is provided.

[0020] REFERENCE NUMERALS

[0021] 1, lifting appliance; 2, rotating shaft;

[0022] 3, negative pressure tool; 4, bearing;

[0023] 5, guide; 6, first telescopic member;

[0024] 7, base; 8, adjusting support;

[0025] 9, second telescopic member; 10, pressing screw; DETAILED DESCRIPTION

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments are not understood to be limited to the embodiments set forth herein. Like reference numerals in different drawings denote like or similar structural elements, and thus detailed descriptions thereof will be omitted.

[0027] REFERENCE Figure 1 and Figure 2 In one aspect of the present disclosure, a bearing auxiliary tool is provided, which is suitable for a bearing inner ring. The bearing auxiliary tool includes a base 7, an adjusting support 8, and a negative pressure tool 3. The adjusting support 8 is arranged above the base 7 and is used to connect an end portion of a rotating shaft 2. The negative pressure tool 3 is used to be sleeved outside the rotating shaft 2 and abut against a top end face or a bottom end face of the bearing. The negative pressure tool 3 is arranged above the adjusting support 8. At least one of the adjusting support 8 and the negative pressure tool 3 is movably connected to the base 7. When the adjusting support 8 and the negative pressure tool 3 are close to each other, the bearing can be sleeved on the rotating shaft 2. Alternatively, when the adjusting support 8 and the negative pressure tool 3 are away from each other, the bearing can be disengaged from the rotating shaft 2.

[0028] The present disclosure can adjust the distance between the adjusting support 8 and the negative pressure tool 3 by movably connecting at least one of the adjusting support 8 and the negative pressure tool 3 to the base 7, so as to sleeve or dismount the bearing 4 from the rotating shaft 2, and improve the assembly accuracy of the bearing 4.

[0029] Specifically, in the case that the rotating shaft 2 is connected to the adjusting support 8 and the negative pressure tool 3 abuts against the top end surface of the bearing, the distance between the adjusting support 8 and the negative pressure tool 3 can be shortened by pushing the adjusting support 8 upward, so as to sleeve the bearing 4 on the rotating shaft 2; in the case that the rotating shaft 2 is connected to the adjusting support 8 and the negative pressure tool 3 abuts against the bottom end surface of the bearing, the distance between the adjusting support 8 and the negative pressure tool 3 can be enlarged by pushing the negative pressure tool 3 upward, in the process, the bearing 4 will move upward relative to the rotating shaft 2 to disengage from the rotating shaft 2, but not limited thereto.

[0030] The above embodiment is described by taking one of the adjusting support 8 and the negative pressure tool 3 as stationary relative to the base 7 and the other as movable relative to the base 7, but not limited thereto, both the adjusting support 8 and the negative pressure tool 3 can be movable relative to the base 7 as needed, as long as the distance between the adjusting support 8 and the negative pressure tool 3 meets the needs.

[0031] With continuous reference to the drawings, the negative pressure tool 3 is used to abut against the top end surface of the bearing, for example but not limited to, in the case that the negative pressure tool 3 is kept stationary relative to the base 7, the bearing auxiliary tool further comprises a first telescopic member 6 connected between the adjusting support 8 and the base 7, which can lift the adjusting support 8 upward when the first telescopic member 6 is elongated, so as to shorten the distance between the negative pressure tool 3 and the adjusting support 8, and sleeve the bearing on the rotating shaft 2.

[0032] With reference to Figure 1 , the present embodiment is described by taking the negative pressure tool 3 as kept stationary relative to the base 7, lifting the adjusting support 8 upward to lift the rotating shaft 2 upward and sleeve the bearing 4 on the rotating shaft 2.

[0033] It can be understood that the present embodiment is described by taking the negative pressure tool 3 as used to abut against the top end surface of the bearing and kept relatively stationary relative to the base 7, and 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 and 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 sleeve the bearing 4 on the rotating shaft 2, but not limited thereto.

[0034] According to the need, the adjusting support 8 can be arranged to remain stationary relative to the base 7, and the first telescopic member 6 can also be connected between the negative pressure tool 3 and the base 7 to adjust the distance between the negative pressure tool 3 and the base 7 by the telescoping of the first telescopic member 6. For example, but not limited to, when the first telescopic member 6 is contracted, the negative pressure tool 3 will be driven by the first telescopic member 6 to move towards the base 7, and in this process, the distance between the negative pressure tool 3 and the adjusting support 8 is reduced, and the bearing 4 will be tightly sleeved on the rotating shaft 2 under the pulling action of the negative pressure tool 3.

[0035] In the embodiment, the first telescopic member 6 can be a telescopic cylinder, for example, but not limited to, a telescopic oil cylinder or a telescopic air cylinder. As an example, the first telescopic member 6 is taken as an oil cylinder in the disclosure, and in addition, the first telescopic member 6 can also be a lead screw assembly, but not limited thereto.

[0036] In the embodiment, the first telescopic member 6 is arranged in multiple, and the multiple first telescopic members 6 are uniformly arranged along the circumference of the base 7 to enable the movable member to be uniformly stressed in the circumferential direction. The movable member defined in the disclosure includes a component that can be movably arranged relative to the base 7, and the movable member can be at least one of the adjusting support 8 and the negative pressure tool 3. In order to avoid the adjusting support 8 from being deflected, the telescoping speeds of the multiple first telescopic members 6 are the same to keep synchronous contraction, but not limited thereto.

[0037] The embodiment takes the first telescopic member 6 as an oil cylinder, and the bearing auxiliary tool includes six sets of first telescopic members 6, which are arranged at equal angles along the circumference of the base 7. The six sets of first telescopic members 6 can be synchronously telescoped to tightly sleeve the bearing 4 on the rotating shaft 2.

[0038] The above embodiment takes the negative pressure tool 3 to abut against the top end surface of the bearing 4, and the distance between the adjusting support 8 and the negative pressure tool is reduced to tightly sleeve the bearing 4 on the rotating shaft 2, thereby realizing the assembly of the bearing 4 and the rotating shaft 2.

[0039] In order to improve the use reliability of the bearing auxiliary tool, the bearing auxiliary tool further includes a pressing screw 10. In the case that the adjusting support 8 is movably connected to the base 7, the pressing screw 10 is connected between the negative pressure tool 3 and the base 7 to enable the negative pressure tool 3 to be reliably connected to the base 7 and remain stationary relative to the base 7. According to the need, the pressing screw 10 can be arranged in multiple, and the multiple pressing screws 10 can be uniformly arranged along the circumference of the base 7, but not limited thereto. As an example, the pressing screw 10 can be a high-strength bolt according to the need, but not limited thereto.

[0040] In an optional embodiment, in the case that the negative pressure tool 3 is movably connected to the base 7, the pressing screw 10 is connected between the adjusting support 8 and the base 7 to reliably connect the adjusting support 8 to the base 7 and keep the adjusting support 8 stationary relative to the base 7.

[0041] For the convenience of description, the negative pressure tool 3 is arranged on the outer periphery of the rotating shaft 2 and abuts against the top end surface of the bearing 4 in the embodiment, and the negative pressure tool 3 is reliably connected to the base 7 by the plurality of pressing screws 10 and kept relatively stationary with the base 7, while the bearing 4 is kept stationary relative to the base 7 under the limiting action of the negative pressure tool 3. A plurality of first extension members 6 are arranged between the adjusting support 8 and the base 7, and the rotating shaft 2 connected to the adjusting support 8 is lifted upward by extending the first extension members 6 to lift the adjusting support 8 upward, so that the rotating shaft 2 is inserted into the bearing 4 and kept in close connection with the bearing 4 in the process of being lifted, thereby improving the assembly precision of the bearing 4.

[0042] To further improve the use reliability of the bearing auxiliary tool, the bearing auxiliary tool further comprises a guide member 5 for guiding the movement of the movable member relative to the base 7.

[0043] With reference to the accompanying drawings, the bearing auxiliary tool further comprises a guide member 5, one end of the guide member 5 is connected to one of the movable member and the base 7, and the other one of the movable member and the base 7 is provided with a guide portion matched with the guide member 5, the guide portion can move along the guide member, so that the movable member can approach or move away from the base 7 along the guide member.

[0044] In the case where the movable member comprises the adjusting support 8, one end of the guide member 5 is connected to one of the adjusting support 8 and the base 7, and the other one of the adjusting support 8 and the base 7 is provided with a guide portion matched with the guide member 5, the guide portion can move along the guide member, so that the adjusting support 8 can approach or move away from the base 7 along the guide member.

[0045] Specifically, the adjusting support 8 is movably connected to the base 7, and one end of the guide member 5 can be connected to the base 7 at this time, and the embodiment takes the guide member 5 as a guide column as an example, and the guide portion matched with the guide member 5 can be arranged on the adjusting support 8, for example but not limited to, the guide portion can be a guide through hole or a guide groove, and in the process of moving the guide portion along the guide member 5, the adjusting support 8 approaches or moves away from the base 7.

[0046] The embodiment takes the guide through hole arranged on the adjusting support 8 and the guide member 5 in a columnar structure fixed on the base 7 as an example for illustration, but is not limited thereto. In an alternative embodiment, the guide portion can also be arranged on the base 7, and the guide member 5 is fixed on the adjusting support 8.

[0047] In the case that the movable part comprises the negative pressure tool 3, that is, the negative pressure tool 3 is movably connected to the base 7, one end of the guide part 5 can be connected to one of the negative pressure tool 3 and the base 7, and the other of the negative pressure tool 3 and the base 7 is provided with a guide part matched with the guide part 5, for example but not limited to, the guide part can be a guide through hole or a guide groove, the guide part can move along the guide part, so that the negative pressure tool 3 can move close to or away from the base 7 along the guide part.

[0048] As an example, the guide part 5 is provided with a plurality of guide parts 5, and the plurality of guide parts 5 are equiangularly arranged along the circumference of the base 7, but not limited thereto.

[0049] The guide part 5 comprises a guide column extending in the vertical direction, and the bottom end of the guide column is fixed to the base 7, and the guide part is arranged on the movable part, and the guide part comprises a guide through hole or a guide groove matched with the guide column.

[0050] In order to facilitate the accurate insertion of the guide column into the movable part, and to further improve the use reliability of the bearing auxiliary tool, the top end of the guide column is arranged to gradually decrease in cross section from bottom to top, but not limited thereto.

[0051] As an example, the guide part 5 provided by the present disclosure is generally cylindrical, and the top end of the guide part 5 is arranged in a circular truncated cone structure gradually decreasing in cross section from bottom to top, but not limited thereto.

[0052] In order to facilitate the disassembly of the bearing 4 from the rotating shaft 2, the negative pressure tool 3 can be arranged below the bearing 4 and abut against the bottom end surface of the bearing 4, and the distance between the negative pressure tool 3 and the adjusting support 8 is increased to disassemble the bearing 4 from the rotating shaft 2.

[0053] In the embodiment, the bearing auxiliary tool further comprises a second telescopic part 9 connected between the negative pressure tool 3 and the base 7, which can lift the negative pressure tool 3 upward when the second telescopic part 9 is extended, so as to drive the bearing 4 to separate from the rotating shaft 2; or the second telescopic part 9 is connected between the adjusting support 8 and the base 7, which can pull the rotating shaft 2 downward when the second telescopic part 9 is retracted, so as to make the bearing 4 separate from the rotating shaft 2.

[0054] For convenience of description, with reference to Figure 2 In the embodiment, the second telescopic part 9 is connected between the negative pressure tool 3 and the base 7 as an example for description, but not limited thereto.

[0055] As an example, the second telescopic part 9 can be a telescopic cylinder or a lead screw assembly, but not limited thereto. For convenience of description, the second telescopic part 9 is taken as an oil cylinder as an example for description in the embodiment. Optionally, the second telescopic part 9 can be provided in plurality, and the plurality of second telescopic parts 9 are arranged equidistantly along the circumference of the base 7, for example but not limited to, the second telescopic parts 9 are arranged uniformly along the circumference of the base 7.

[0056] The second telescopic part 9 is taken as an oil cylinder in this embodiment, and the bearing auxiliary tool includes six sets of second telescopic parts 9, which are arranged at equal angles along the circumference of the base 7, and the six sets of second telescopic parts 9 can be synchronously telescoped to enable the bearing 4 to be separated from the rotating shaft 2.

[0057] Further, the bearing auxiliary tool provided in this embodiment further includes a lifting tool 1, which is used to hoist at least one of the negative pressure tool 3 and the bearing 4 and to set at least one of the negative pressure tool 3 and the bearing 4 on the rotating shaft 2.

[0058] As an example, the lifting tool 1 can be arranged above the rotating shaft 2 to hoist and set the negative pressure tool 3 on the rotating shaft 2.

[0059] The bearing auxiliary tool provided in this embodiment further includes a pressure detection device, which can be used to detect the working pressure of the first telescopic part 6 and / or the working pressure of the second telescopic part 9, so as to keep the first telescopic part 6 or the second telescopic part 9 within a predetermined range, thereby further improving the use reliability of the bearing auxiliary tool. In this embodiment, the same set of pressure detection devices can be used to detect the working pressure of the first telescopic part 6 and the second telescopic part 9, respectively, or two sets of pressure detection devices can be used to detect the working pressure of the first telescopic part 6 and the second telescopic part 9, respectively.

[0060] The steps of assembling the bearing 4 on the rotating shaft 2 by using the bearing auxiliary tool in this embodiment are as follows:

[0061] First, the base 7 can be prepared;

[0062] The guide part 5 and the first telescopic part 6 are connected to the base 7, for example but not limited to, the bottom end of the guide part 5 and the bottom end of the first telescopic part 6 are fixed to the base 7, respectively;

[0063] The adjusting support 8 is connected above the base 7, for example but not limited to, the top end of the first telescopic part 6 is fixed to the adjusting support 8, and the guide part of the adjusting support 8 is set on the guide part 5;

[0064] 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;

[0065] The bearing 4 and the negative pressure tool 3 are heated to a predetermined temperature;

[0066] The bearing 4 and the negative pressure tooling 3 are sequentially sleeved on the rotating shaft 2, for example but not limited to, the bearing 4 is sleeved on the rotating shaft 2 first, and then the negative pressure tooling 3 is sleeved on the rotating shaft 2, and the negative pressure tooling 3 is abutted on the top end surface of the bearing 4, and in the process, the bearing 4 and the negative pressure tooling 3 can be hoisted by the lifting appliance 1, but not limited thereto;

[0067] The negative pressure tooling 3 is connected to the base 7 through the pressing screw rod 10;

[0068] The first telescopic part 6 is started to stretch and lift the adjusting support 8 upward, and at the same time, the rotating shaft 2 is lifted upward, for example but not limited to, the first telescopic part 6 can be an oil cylinder, after the bearing 4 is installed to the predetermined position of the rotating shaft 2, the oil pressure of the oil cylinder is maintained until the bearing 4 returns to room temperature, and at this time, the assembly of the bearing 4 and the rotating shaft 2 is completed.

[0069] The steps of using the bearing auxiliary tooling to disassemble the bearing 4 from the rotating shaft 2 are roughly described as follows:

[0070] The negative pressure tooling 3 is installed below the bearing 4 and abutted on the bottom end surface of the bearing 4;

[0071] The second telescopic part 9 is connected between the negative pressure tooling 3 and the base 7, for example but not limited to, the second telescopic part 9 includes an oil cylinder, the bottom end of the oil cylinder is connected to the base 7, and the top end of the oil cylinder is connected to the negative pressure tooling 3, but not limited thereto;

[0072] The second telescopic part 9 is started to elongate to lift the negative pressure tooling 3 upward, and at the same time, the bearing 4 is lifted upward, so that the bearing 4 is disassembled from the rotating shaft 2.

[0073] The bearing auxiliary tooling provided by the present disclosure can be applied to the front bearing of a wind turbine generator set, and is especially suitable for the bearing inner ring of the front bearing.

[0074] In the description of the present disclosure, it should be understood that the orientations or positional relationships indicated by the terms “center”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0075] The terms "first", "second", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or a specific number of the technical features indicated. Thus, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0076] In the description of the present disclosure, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected, can be mechanically connected, or can be electrically connected, or can be communicatively connected, can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0077] The features, structures or characteristics described in the present disclosure can be combined in any suitable manner in one or more embodiments. In the above description, many specific details are provided to give a sufficient understanding of the embodiments of the present disclosure. However, those skilled in the art will realize that the technical solutions of the present disclosure can be practiced without one or more of the specific details, or other methods, components, materials, etc. can be used. In other cases, well-known structures, materials or operations are not shown or described in detail to avoid obscuring the aspects of the present disclosure.

Claims

1. A bearing assist tool characterized by, The bearing auxiliary tool is suitable for a bearing inner ring, and the bearing auxiliary tool comprises: a base (7), an adjusting support (8) arranged above the base (7) and used for connecting an end of a rotating shaft (2), a negative pressure tool (3) used for being sleeved on the rotating shaft (2) and abutting against a top end face or a bottom end face of the bearing, and the negative pressure tool (3) is arranged above the adjusting support (8), wherein at least one of the adjusting support (8) and the negative pressure tool (3) is movably connected to the base (7), when the adjusting support (8) and the negative pressure tool (3) are close to each other, the bearing can be sleeved on the rotating shaft (2); or when the adjusting support (8) and the negative pressure tool (3) are away from each other, the bearing can be separated from the rotating shaft (2).

2. The bearing assist tool of claim 1, wherein, The negative pressure tool (3) is used for abutting against the top end face of the bearing, and the bearing auxiliary tool further comprises 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) is elongated, the adjusting support (8) can be lifted upward, so that the bearing is sleeved on the rotating shaft (2); or the first telescopic member (6) is connected between the negative pressure tool (3) and the base (7), when the first telescopic member (6) is contracted, the negative pressure tool (3) can be pulled and the bearing is driven to be sleeved on the rotating shaft (2).

3. The bearing assist tool of claim 2, wherein, A plurality of first telescopic members (6) are arranged, and the plurality of first telescopic members (6) are equiangularly spaced along the circumference of the base (7); and / or The first telescopic member (6) comprises a telescopic cylinder, and the bearing auxiliary tool comprises a pressure detection device used for detecting the working pressure of the first telescopic member (6).

4. The bearing assist tool of claim 1, wherein, The bearing auxiliary tool further comprises a pressing screw (10), in the case that the adjusting support (8) is movably connected to the base (7), the pressing screw (10) is connected between the negative pressure tool (3) and the base (7), so that the negative pressure tool (3) is kept stationary relative to the base (7); or in the case that the negative pressure tool (3) is movably connected to the base (7), the pressing screw (10) is connected between the adjusting support (8) and the base (7), so that the adjusting support (8) is kept stationary relative to the base (7).

5. The bearing assist tool of claim 1, wherein, At least one of the negative pressure tool (3) and the adjusting support (8) is a movable member relative to the base (7), and the bearing auxiliary tool further comprises a guide member (5), one end of the guide member (5) is connected to one of the movable member and the base (7), and the other one of the movable member and the base (7) is provided with a guide portion matched with the guide member (5), the guide portion can move along the guide member, so that the movable member can move along the guide member relative to the base (7) to be close to or away from.

6. The bearing assist tool of claim 5, wherein, The guide piece (5) comprises a guide column extending in the vertical direction, and the bottom end of the guide column is fixed to the base (7), and the guide part is arranged on the movable piece and comprises a guide through hole or a guide slot matched with the guide column.

7. The bearing assist tool of claim 6, wherein, The top end of the guide column is arranged to gradually decrease in cross section from bottom to top; and / or, The guide piece (5) is arranged in multiple, and the multiple guide pieces (5) are arranged at equal angles along the circumference of the base (7).

8. The bearing assist tool of claim 1, wherein, The negative pressure tool (3) is used to abut against the bottom end surface of the bearing, and the bearing auxiliary tool further comprises a second telescopic piece (9) connected between the negative pressure tool (3) and the base (7), which can lift the negative pressure tool (3) upward when the second telescopic piece (9) is extended, so as to drive the bearing (4) to separate from the rotating shaft (2); Or, The second telescopic piece (9) is connected between the adjusting support (8) and the base (7), which can pull the rotating shaft (2) downward when the second telescopic piece (9) is contracted, so as to separate the bearing (4) from the rotating shaft (2).

9. The bearing assist tool of claim 8, wherein, The second telescopic piece (9) is arranged in multiple, and the multiple second telescopic pieces (9) are arranged at equal angles along the circumference of the base (7); and / or, The second telescopic piece (9) comprises a telescopic cylinder, and the bearing auxiliary tool further comprises a pressure detection device for detecting the working pressure of the second telescopic piece (9).

10. The bearing assist tool of any one of claims 1-9, wherein, The bearing auxiliary tool further comprises a lifting tool (1) for lifting at least one of the negative pressure tool (3) and the bearing and sleeving at least one of the negative pressure tool (3) and the bearing on the rotating shaft (2).

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