CN213954175U

CN213954175U - Bearing support

Info

Publication number: CN213954175U
Application number: CN202022168604.0U
Authority: CN
Inventors: 吴开峰; 吴平平; 郑德信
Original assignee: Wanxiang Qianchao Co Ltd; Wanxiang Group Corp
Current assignee: Wanxiang Qianchao Co Ltd; Wanxiang Group Corp
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-08-13
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses a bearing support mainly includes bearing, outer support, support inner circle, recess A, recess B, and the circumferencial direction of support inner circle external diameter is opened has the recess A of certain degree of depth, and the axis direction of support inner circle external diameter is opened has the recess B of certain degree of depth, and support inner circle external pressure casting outer support, recess A, recess B and outer support combine together in order to limit the motion of support inner circle axial, circumferencial direction, pressure equipment bearing in the support inner circle. The utility model discloses inlay the cast iron inner circle in the inside of aluminium support, support inner circle and bearing inner race metal thermal expansion coefficient are the same, and bearing inner race surface can not produce the clearance with the support inner circle to solved because of producing spacious volume's possibility in the part course of the work, avoided bearing inner race and support inner circle to produce circular motion, stopped the abnormal sound in the bearing course of the work.

Description

Bearing support

Technical Field

The utility model relates to a bearing support's field, concretely relates to bearing support.

Background

The existing bearing support is mainly in a bearing later-stage press-fitting mode, the existing bearing support is mainly made of cast aluminum or cast iron, the aluminum bearing support is light in weight, but after the bearing support is used for a period of time, the aluminum bearing support and a bearing outer ring have looseness, abnormal sound is easily caused in the using process, the NVH performance is poor, and customers complain; the cast iron support is too heavy, does not meet the requirement of light weight of the current market, has poor corrosion resistance, and needs to spray paint on the surface of a part, thereby increasing the process cost. And the weight reduction of automobile parts is the trend of light weight of the whole automobile, and the requirements of various large main engine plants on the performance of a driving shaft are higher and higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide a bearing support.

The purpose of the utility model is accomplished through following technical scheme: the bearing support mainly comprises a bearing, an outer support, a support inner ring, a groove A and a groove B, wherein the groove A with a certain depth is formed in the circumferential direction of the outer diameter of the support inner ring, the groove B with a certain depth is formed in the axial direction of the outer diameter of the support inner ring, the outer support is cast outside the support inner ring in a compression mode, the groove A, the groove B and the outer support are integrated to limit the axial and circumferential movement of the support inner ring, the bearing is pressed in the support inner ring, and the metal thermal expansion coefficients of the support inner ring and the bearing outer ring are the same.

The grooves A and the grooves B are mutually crossed.

The number of the grooves A is one or more, the depth is 0.8-2.5mm, and the width is 4-10 mm.

The number of the grooves B is one or more, the depth is 0.8-2.5mm, and the width is 3-15 mm.

The outer bracket is made of cast aluminum.

The material of the inner ring of the support is cast iron.

The utility model has the advantages that: the utility model discloses inlay the cast iron inner circle in aluminium support inside, support inner circle and bearing inner race metal thermal expansion coefficient are the same, and bearing inner race surface can not produce the clearance with the support inner circle to solved because of the possibility that produces the spacious volume in the part course of working, avoided bearing inner race and support inner circle to produce circular motion, stopped the abnormal sound in the bearing course of working; in addition, axial and circumferential grooves are designed on the outer part of the cast iron inner ring, and the cast iron inner ring are integrated in the casting process of the external aluminum support, so that the axial movement and the circumferential movement of the cast iron support inner ring are prevented, and abnormal sound is avoided; the cast aluminum bearing support has the advantages of being light in weight, rust-proof and capable of balancing light weight and excellent NVH performance, and meeting the increasing demands of customers on products.

Drawings

Fig. 1 is a schematic structural diagram of the prior art.

Fig. 2 is a schematic structural diagram of the present invention.

Figure 3 is the utility model discloses a support inner circle structure axonometric drawing.

Fig. 4 is a front view of the inner ring structure of the support of the present invention.

Fig. 5 is a top view of the inner ring structure of the support of the present invention.

Fig. 6 is a sectional view of the inner ring structure of the support of the present invention.

Description of reference numerals: bearing 1, outer support 2, support inner race 3, recess A4, recess B5.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

example (b): as shown in the attached drawing, the bearing support mainly comprises a bearing 1, an outer support 2, a support inner ring 3, a groove A4 and a groove B5, wherein the groove A4 with certain depth is formed in the circumferential direction of the outer diameter of the support inner ring 3, the groove B5 with certain depth is formed in the axial direction of the outer diameter of the support inner ring 3, the outer support 2 is cast outside the support inner ring 3, the groove A4, the groove B5 and the outer support 2 are integrated to limit the axial and circumferential movement of the support inner ring 3, and the groove A4 and the groove B5 are intersected with each other. The number of the grooves A4 is one or more, the depth is 0.8-2.5mm, and the width is 4-10 mm. The number of the grooves B5 is one or more, the depth is 0.8-2.5mm, and the width is 3-15 mm. The bearing 1 is pressed in the support inner ring 3, and the metal thermal expansion coefficients of the support inner ring 3 and the bearing 1 are the same.

The outer bracket 2 is made of cast aluminum. Minimizing the weight of the bearing bracket itself. Meanwhile, the aluminum material with the antirust function is exposed outside, so that the process increase and the environmental influence caused by surface treatment (painting, electroplating and the like) of the cast iron material can be reduced. The material of the support inner ring 3 is cast iron. The inner ring 3 of the support is made of the same iron-based metal material as the outer ring of the bearing 1, and after the interference press-fitting is completed, under the conditions of preheating and precooling, because the thermal expansion coefficients of the metal are the same, the surface of the outer ring of the bearing 1 cannot generate a gap with the inner ring 3 of the support, so that the possibility of generating an excessive amount in the working process of parts is solved, the circular motion of the outer ring of the bearing 1 and the inner ring 3 of the support is avoided, and abnormal sound in the working process of the bearing 1 is avoided.

It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.

Claims

1. A bearing support, its characterized in that: the bearing mainly comprises a bearing (1), an outer support (2), a support inner ring (3), a groove A (4) and a groove B (5), wherein the groove A (4) with a certain depth is formed in the circumferential direction of the outer diameter of the support inner ring (3), the groove B (5) with a certain depth is formed in the axial direction of the outer diameter of the support inner ring (3), the outer support (2) is externally compression-cast in the support inner ring (3), the groove A (4), the groove B (5) and the outer support (2) are integrated to limit the axial direction of the support inner ring (3), the circumferential direction moves, the bearing (1) is internally compressed in the support inner ring (3), and the metal thermal expansion coefficients of the support inner ring (3) and the outer ring of the bearing (1) are the same.

2. The bearing support of claim 1, wherein: the grooves A (4) and the grooves B (5) are mutually crossed.

3. The bearing support according to claim 1 or 2, characterized in that: the number of the grooves A (4) is one or more, the depth is 0.8-2.5mm, and the width is 4-10 mm.

4. The bearing support according to claim 1 or 2, characterized in that: the number of the grooves B (5) is one or more, the depth is 0.8-2.5mm, and the width is 3-15 mm.

5. The bearing support of claim 1, wherein: the outer bracket (2) is made of cast aluminum.

6. The bearing support of claim 1, wherein: the support inner ring (3) is made of cast iron.