WO2023000615A1

WO2023000615A1 - Rolling bearing that automatically eliminates installation tilt

Info

Publication number: WO2023000615A1
Application number: PCT/CN2021/142457
Authority: WO
Inventors: 雷小刚
Original assignee: 人本股份有限公司; 上海人本集团有限公司; 温州静音汽车轴承有限公司
Priority date: 2021-07-20
Filing date: 2021-12-29
Publication date: 2023-01-26
Also published as: CN113494522A

Abstract

Disclosed is a rolling bearing that automatically eliminates installation tilt, comprising a bearing inner ring (1), a bearing outer ring (2) and an assembly gasket (3). The bearing inner ring (1) is sleeved on the assembly gasket (3). The bearing outer ring (2) is sleeved on the bearing inner ring (1). The assembly gasket (3) has provided thereon a tightening member used for pressing the assembly gasket (3) onto the bearing inner ring (1). An assembly ring (11) is provided protruding from an inner peripheral wall of the bearing inner ring (1). A peripheral wall of the assembly gasket (3) is provided with an assembly groove (31) accommodating the assembly ring (11). The assembly ring (11) is inserted into and mated with the assembly groove (31). The rolling bearing addresses the problem of a bearing having poor ability to withstand tilt.

Description

Rolling bearings that eliminate the installation inclination by themselves

technical field

The invention relates to the technical field of bearings, in particular to a rolling bearing that automatically eliminates the installation inclination angle.

Background technique

Under many working conditions, the bearing needs to withstand a relatively large inclination angle, but the ability of conventional deep groove ball bearings to withstand the inclination angle is limited. In order to meet the working conditions, a larger clearance has to be used to obtain a larger inclination angle. However, the bearing clearance produced by this method will be too large. Not only will the noise increase when the bearing is working, but the raceway and the surface of the steel ball will easily be damaged when the bearing is working. The occurrence of the above situation will not only lead to the design of the mechanical system being affected Limit, and if the surface of the raceway and the steel ball is damaged, it will affect the working environment of the bearing, so that the wear of the steel ball and the cage, the steel ball and the inner and outer ring raceways will be aggravated when the bearing is working, resulting in the steel ball of the bearing The surface and inner and outer ring raceways peel off, thereby reducing the service life of the bearing and affecting the operation of the entire mechanical equipment.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a rolling bearing that automatically eliminates the installation inclination angle, in order to solve the problem that the bearing in the prior art has a weak ability to bear the inclination angle.

In order to achieve the above purpose, the present invention provides a rolling bearing that automatically eliminates the installation inclination, including a bearing inner ring, a bearing outer ring and an assembly washer, the bearing inner ring is sleeved on the assembly washer, and the bearing outer ring is sleeved in the bearing On the ring, the assembly washer is provided with fasteners for press-fitting the assembly washer on the inner ring of the bearing, the inner peripheral wall of the bearing inner ring is protruded with an assembly ring, and the outer peripheral wall of the assembly washer is provided with a The assembly groove is accommodated by the assembly ring, and the assembly ring and the assembly groove are inserted and matched.

The advantage of adopting the above technical solution is that in the above technology, the assembly washer is press-fitted on the inner ring by fasteners. When the shaft inserted on the bearing has an inclination angle, the assembly washer can be deformed and compressed according to the direction and angle of the inclination angle to eliminate the inclination angle. The impact on the bearing ensures that the bearing raceway and the steel ball are in a stable state, so that the use of the bearing will not be affected, and a better life requirement can be achieved. The setting of the fitting ring and the fitting groove ensures that the fitting gasket Will not disengage the bearing inner ring, while increasing the contact area between the bearing inner ring and the assembly washer.

The present invention further provides that: the fastener includes a snap spring, the assembly washer is pressed between the inner ring of the bearing and the snap spring through the snap spring, the inner peripheral wall of the snap spring buckles on the inner peripheral wall of the assembly washer, the Ribs are provided on both side walls of the circlip, and the inner peripheral walls of the two ribs are respectively in conflict with the side walls of the assembly washer.

The advantage of adopting the above technical solution is that the operator press-fits the assembly washer between the inner ring of the bearing and the retaining spring through the circlip to ensure that the assembly washer will not detach from the inner ring of the bearing, and at the same time ensure that the bearing bears the pressure caused by the inclination angle. Time fitting gaskets can deform and compress normally to guide the pressure.

A further setting of the present invention: the snap ring is made of SPCC material.

The advantage of adopting the above technical solution is that the circlip is made of SPCC material, which can be easier to process and assemble the bearing, and can make the washer and the inner ring fit closely.

A further setting of the present invention is: a first inclined surface is connected between the side walls on both sides of the assembly ring and the inner peripheral wall of the bearing inner ring, and a second inclined surface is connected between the opening of the assembly groove and the outer peripheral wall of the assembly gasket. The first inclined surface and the second inclined surface are attached to each other.

The advantage of adopting the above-mentioned technical solution is that: the setting of the first inclined surface and the second inclined surface in the above-mentioned technology can make the assembly washer and the inner ring of the bearing have a larger contact area through the contact of the inclined surfaces, and avoid slipping when the bearing rotates.

The present invention further sets: first limit grooves are provided on both side walls of the assembly ring, and second limit grooves are provided on the inner wall of the assembly groove corresponding to the positions of the two first limit grooves. Limiting rods are arranged in the second limiting grooves, and one ends of the two limiting rods extend toward the direction of the corresponding first limiting grooves and are inserted and matched with the corresponding first limiting grooves.

The advantage of adopting the above technical solution is that one end of the limit rod is fitted with the corresponding first limit slot to ensure that the assembly ring will not easily disengage from the assembly groove when the bearing bears the pressure brought by the inclination angle, further ensuring the assembly The washer will not disengage from the inner race of the bearing when subjected to a large amount of impact.

The present invention further sets: the limit rod is made of shape memory alloy material, the limit rod has a first form in the first temperature range, and the limit rod has a second form in the second temperature range, In the first temperature range, one end of the limiting rod is plugged with the corresponding first limiting groove, and in the second temperature range, the limiting rod deforms and bends and breaks away from the first limiting groove.

The advantage of adopting the above technical solution is that the limit rod is supported by a shape memory alloy, which can be made of nickel-titanium memory alloy. The temperature range below 30 degrees is the second temperature range, and the temperature range of the disguised phase is the first temperature range. When the bearing is running, its internal temperature can reach above 30 degrees. At this time, the internal temperature of the bearing reaches the disguised temperature, making the limit One end of the rod is inserted and matched with the corresponding first limiting groove. The above-mentioned technical setting makes the bearing in operation and bears a high load, and the insertion and cooperation of the limiting rod and the first limiting groove can ensure that the assembly ring will not come off The assembly groove further ensures that the assembly gasket will not be separated from the inner ring of the bearing; when the bearing stops running, its internal temperature gradually drops below 30 degrees, at this time the internal temperature of the bearing reaches the second temperature range, and one end of the limit rod is gradually deformed at this time Bending and disengaging from the first limiting groove, so that the limiting rod is no longer inserted into the first limiting groove, the setting of the above technology ensures that the operator can easily disassemble the bearing when the bearing stops running.

The present invention further provides that: the assembly gasket is made of nitrile rubber.

The advantage of adopting the above technical solution is that the assembly gasket is made of nitrile rubber. The reason for choosing it as the material is that it can be easier to process and reduce the manufacturing difficulty of the product. The second is to make the assembly gasket more elastic and capable. Better completion of deformation compression procedure.

Description of drawings

Fig. 1 is the cross-sectional view of the present invention's use state;

Fig. 2 is a bottom view of part A in Fig. 1;

Fig. 3 is the sectional view of the unused state of the present invention;

Fig. 4 is a bottom view of part B in Fig. 3 .

detailed description

The present invention provides a rolling bearing that automatically eliminates the installation inclination angle, comprising a bearing inner ring 1, a bearing outer ring 2 and an assembly washer 3, the bearing inner ring 1 is set on the assembly washer 3, and the bearing outer ring 2 is set on On the bearing inner ring 1, the assembly washer 3 is provided with fasteners for press-fitting the assembly washer 3 on the bearing inner ring 1, an assembly ring 11 protrudes from the inner peripheral wall of the bearing inner ring 1, and the The outer peripheral wall of the assembly gasket 3 is provided with an assembly groove 31 for the assembly ring 11 to be accommodated. The assembly ring 11 is inserted and fitted with the assembly groove 31. The fastener includes a snap spring 4, and the assembly gasket 3 passes through the clip The spring 4 is press-fitted between the bearing inner ring 1 and the retaining spring 4, and the inner peripheral wall of the retaining spring 4 is buckled on the inner peripheral wall of the assembly washer 3, and ribs 41 are arranged on both side walls of the retaining spring 4. The inner peripheral walls of the ribs 41 are in conflict with the two side walls of the assembly washer 3 respectively, the snap spring 4 is made of SPCC material, and the two side walls of the assembly ring 11 are connected to the inner peripheral wall of the bearing inner ring 1 There is a first inclined surface 12, and a second inclined surface 32 is connected between the opening of the assembly groove 31 and the outer peripheral wall of the assembly gasket 3, and the first inclined surface 12 and the second inclined surface 32 are attached to each other. Both side walls of the ring 11 are provided with a first limiting groove 13, and the inner wall of the assembly groove 31 is provided with a second limiting groove 33 corresponding to the positions of the two first limiting grooves 13. Limiting rods 5 are arranged in the position grooves 33, and one end of the two limit rods 5 extends toward the direction of the corresponding first limiting groove 13 and is inserted and matched with the corresponding first limiting groove 13. The limit rod 5 is made of a shape memory alloy material, the limit rod 5 has a first form under the first temperature range, and the limit rod 5 has a second form under the second temperature range. In the first temperature range, one end of the position rod 5 is inserted and fitted with the corresponding first limit groove 13, and the limit rod 5 deforms and bends in the second temperature range and breaks away from the first limit groove 13. The assembly gasket 3 is made of nitrile rubber.

Above shows and described basic principle of the present invention and main feature and the advantage of the present invention, those skilled in the art should understand that, the present invention is not limited by above-mentioned embodiment, what described in above-mentioned embodiment and description just illustrates the present invention Principle, under the premise of not departing from the spirit and scope of the present invention, the present invention also has various changes and improvements, and these changes and improvements all fall within the claimed scope of the present invention, and the claimed protection scope of the present invention is defined by the appended claims Requirements and their equivalents are defined.

Claims

A rolling bearing that automatically eliminates the installation inclination, characterized in that it includes a bearing inner ring, a bearing outer ring and an assembly washer, the bearing inner ring is sleeved on the assembly washer, the bearing outer ring is sleeved on the bearing inner ring, the The assembly washer is provided with fasteners for pressing the assembly washer on the inner ring of the bearing, the inner peripheral wall of the bearing inner ring is protruded with an assembly ring, and the outer peripheral wall of the assembly washer is provided with a hole for the assembly ring to accommodate. An assembly groove, and the assembly ring is set in cooperation with the assembly groove.
According to claim 1, a rolling bearing that automatically eliminates the installation inclination angle is characterized in that: the fastener includes a circlip, and the assembly washer is pressed between the inner ring of the bearing and the circlip through the circlip, and the The inner peripheral wall of the circlip is buckled on the inner peripheral wall of the assembly washer, ribs are arranged on both side walls of the circlip, and the inner peripheral walls of the two ribs are in conflict with the two side walls of the assembly washer respectively.
The rolling bearing with self-eliminating inclination angle according to claim 2, characterized in that: the retaining spring is made of SPCC material.
According to claim 1, a rolling bearing capable of self-eliminating the installation inclination is characterized in that: a first inclined surface is connected between the side walls on both sides of the assembly ring and the inner peripheral wall of the inner ring of the bearing, and the opening of the assembly groove is connected to the inner peripheral wall of the bearing inner ring. A second inclined surface is connected between the outer peripheral walls of the assembly gasket, and the first inclined surface and the second inclined surface are arranged in close contact.
According to claim 1, a rolling bearing capable of self-eliminating the installation inclination is characterized in that: first limit grooves are formed on both side walls of the assembly ring, and the inner walls of the assembly groove correspond to two first limit grooves The positions of the slots are all provided with a second limiting groove, and a limiting rod is arranged in the two second limiting grooves, and one end of the two limiting rods extends toward the direction of the corresponding first limiting groove and is aligned with the corresponding first limiting groove. Correspondingly, the first limiting groove is plugged and fitted.
According to claim 5, a rolling bearing capable of self-eliminating the installation inclination, characterized in that: the limit rod is made of a shape memory alloy, and the limit rod has a first shape in a first temperature range, so The limiting rod has a second form in the second temperature range, and one end of the limiting rod is fitted with the corresponding first limiting slot in the first temperature range, and the limiting rod is in the second temperature range. Under the deformation range, it bends and breaks away from the first limiting groove.
The rolling bearing with self-eliminating installation inclination according to claim 1, characterized in that: the assembly washer is made of nitrile rubber.