Bearing bush structure with two thinned ends and bored corrugations on inner surface

By designing a bearing structure with thinned inner surfaces and bored corrugations at both ends, the problems of insufficient oil storage and wear were solved, thereby improving lubrication capacity, reducing wear, and extending the service life of the bearing.

CN223459730UActive Publication Date: 2025-10-21GUANGXI YUCHAI MASCH CO LTD
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Patent Information

Application Number
CN202422931385.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-10-21
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

The existing bearing bushes have insufficient oil storage capacity, resulting in inadequate lubrication. Furthermore, the lack of clearance between the bearing bushes and the shaft at both ends increases wear.

Method used

Design a bearing structure with thinned inner surface and corrugated inner surface at both ends, including an arc-shaped curved sheet structure, inner wall groove and corrugated inner surface, thinned ridges at both ends, and through hole structure connected to inner wall groove, to increase oil storage capacity and reduce wear.

Benefits of technology

By increasing the oil storage capacity, oil film formation is promoted, reducing friction between the bearing and the shaft, and extending the service life of the bearing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bearing bush structure with two thinned ends and bored corrugations on the inner surface, which comprises a bearing bush body, the bearing bush body is of an arc-shaped bent sheet structure, and the bearing bush body comprises a plurality of bearing bush inner wall structures, bearing bush two-end structures and bearing bush through hole structures; the bearing bush structure with the two thinned ends and the bored corrugations on the inner surface further comprises a symmetry axis, the bearing bush body is also of a semi-cylindrical structure with the symmetry axis as the core, and the bearing bush inner wall structure comprises an inner wall groove and an inner wall surface. The bearing bush two-end structure is used for reducing abrasion between the shaft and the bearing bush; one end of the bearing bush through hole structure penetrates through the outer surface of the bearing bush body, and the other end of the bearing bush through hole structure penetrates through the inner surface of the bearing bush body and is connected with the inner wall groove. The oil storage quantity of the bearing bush can be improved, and meanwhile friction between the bearing bush and other devices of an engine is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of engine bearing, especially a bearing structure with two ends thinned and inner surface bored with corrugation. BACKGROUND

[0002] The existing bearing uses a semi-ring structure, which cannot improve the oil storage capacity, and the oil storage capacity determines the lubricating capacity of the bearing.

[0003] The existing bearing has a too thick thickness at two ends, so that the bearing lacks a gap with the shaft after the shaft is installed in the bearing, increasing the wear between the shaft and the bearing.

[0004] The existing bearing has a too thick thickness at two ends, so that the bearing lacks a gap with the shaft after the shaft is installed in the bearing, increasing the wear between the shaft and the bearing.

[0005] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present utility model and should not be regarded as an acknowledgment or any form of suggestion that it forms prior art of this utility model that is publicly known to those of ordinary skill in the art. SUMMARY

[0006] The utility model aims at providing a bearing structure with two ends thinned and inner surface bored with corrugation, which can solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides a bearing structure with two ends thinned and inner surface bored with corrugation, comprising: a bearing body, the bearing body is an arc-shaped and curved sheet structure, the bearing body comprises a plurality of bearing inner wall structures, bearing end structures and bearing through hole structures; the bearing structure with two ends thinned and inner surface bored with corrugation further comprises a symmetry axis, the bearing body is also a half-cylindrical structure with the symmetry axis as the core, the bearing inner wall structure comprises an inner wall groove and an inner wall surface, the inner wall groove and the inner wall surface are located on one side of the arc surface inner wall of the bearing body, and the inner wall groove is a hollow long strip; in the bearing end structure, two ends refer to two end surfaces opposite along the direction of the symmetry axis, and the bearing end structure is used for reducing the wear between the shaft and the bearing; one end of the bearing through hole structure penetrates the outer surface of the bearing body, the other end penetrates the inner surface of the bearing body, and the bearing through hole structure is connected with the inner wall groove.

[0008] In one or more embodiments, the inner wall groove structure is an arc structure, and the long end of the inner wall groove is arranged along the arc bending line of the bearing body; the inner wall groove is a bearing inner wall structure with a large oil storage volume, and is connected with the bearing through hole structure to discharge and update the lubricating oil.

[0009] In one or more embodiments, the inner wall groove structure is an arc structure, and the long end of the inner wall groove is arranged along the arc bending line of the bearing body; the inner wall groove is a bearing inner wall structure with a large oil storage volume, and is connected with the bearing through hole structure to discharge and update the lubricating oil.

[0010] In one or more embodiments, the inner wall surface is a bored corrugated structure.

[0011] In one or more embodiments, the bored corrugated structure is composed of a plurality of ridge structures with a wave-shaped cross section, which are arranged in accordance with the curved line of the bearing shell body, and the plurality of ridge structures of the bored corrugated structure are arranged in parallel to each other and perpendicular to the symmetry axis.

[0012] In one or more embodiments, the bearing shell two-end structure includes a thinned ridge surface composed of two inclined surfaces and a flat surface, the flat surface is perpendicular to the symmetry axis, and the inclined surfaces are two flat surfaces inclined inward from the center to the edge at the two end positions.

[0013] In one or more embodiments, the bearing shell through-hole structure is arranged in position in accordance with the position of the inner wall groove structure.

[0014] In one or more embodiments, the distance between the bored corrugated structures of the inner wall surface is 0.25cm to 0.35cm, and the surface depth is 0.001cm to 0.008cm.

[0015] In one or more embodiments, the thinned thickness of the thinned ridge surface is 0.0015cm to 0.0045cm.

[0016] Compared with the prior art, the multiple technical solutions and embodiments provided by the present application at least have the following technical effects or advantages:

[0017] Through the various arrangements of the bearing shell inner wall structure to increase the surface area and the oil storage space, the amount of oil stored in the bearing shell is increased by utilizing the surface tension of the lubricating oil, and the oil film is generated; the bearing shell is thinned through the bearing shell two-end structure, the wear of the bearing shell is reduced, and the service life of the bearing shell is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the schematic embodiments of the present application and their descriptions are used to explain the present application, which can be considered as a combination of preferred embodiments, and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a whole three-dimensional structure schematic diagram of the bearing shell structure with a bored corrugated two-end thinned inner surface provided by the present application;

[0020] Figure 2 It is a whole structure schematic diagram of the bearing shell structure with a bored corrugated two-end thinned inner surface provided by the present application;

[0021] Figure 3 The utility model provides a kind of two-end thinning inner surface boring corrugation bush structure's side view overall structure schematic diagram;

[0022] Figure 4 The utility model provides a kind of two-end thinning inner surface boring corrugation bush structure's boring corrugation structure schematic diagram;

[0023] The figure's reference numeral represents respectively: 1-bush body, 11-bush inner wall structure, 111-inner wall groove, 112-inner wall surface, 1121-boring corrugation structure, 12-bush two-end structure, 121-thinning edge face, 13-bush through-hole structure, 2-symmetry axis. DETAILED DESCRIPTION

[0024] Unless otherwise specifically indicated, throughout the specification and the claims, the term "comprise" or variations as "comprising" or "comprises" or "including" or "includes" or "contain" or "contains" or "including" or "includes" or "made of" or the like are not intended to exclude that there are also other elements or components.

[0025] The utility model aims at providing a kind of two-end thinning inner surface boring corrugation bush structure, realize the effect of improving bush oil storage capacity, while reducing the friction of bush and other devices of engine.

[0026] Embodiment one

[0027] The utility model provides a kind of two-end thinning inner surface boring corrugation bush structure, comprising: bush body 1, the bush body 1 is arc curved sheet structure, the bush body 1 includes a plurality of for the bush body 1 includes bush inner wall structure 11, bush two-end structure 12 and bush through-hole structure 13;The two-end thinning inner surface boring corrugation bush structure also includes symmetry axis 2, the bush body 1 is also with the half cylindrical structure of symmetry axis 2 as core, the bush inner wall structure 11 includes inner wall groove 111 and inner wall surface 112, the inner wall groove 111 and inner wall surface 112 are located in the arc surface inner wall of the bush body 1 one side, the inner wall groove 111 is hollow long strip;In the bush two-end structure 12, two ends refer to the two end surfaces opposite along symmetry axis 2 direction, the bush two-end structure 12 is used to reduce the wear between shaft and bush;The bush through-hole structure 13 one end passes through the outer surface of the bush body 1, the other end passes through the inner surface of the bush body 1, and is connected with the inner wall groove 111.

[0028] Specifically, in order to increase the oil storage capacity of the bearing bush and reduce the friction between the bearing bush and other devices of the engine, the bearing bush inner wall structure 11, the bearing bush two-end structure 12 and the bearing bush through-hole structure 13 are arranged. The bearing bush inner wall structure 11 is used to increase the oil storage capacity. When the lubricating oil flows through the inner wall of the bearing bush body 1, part of the lubricating oil will remain in the bearing bush inner wall structure 11 due to the influence of the liquid surface tension, thereby reducing the friction between the bearing bush and the shaft. The bearing bush inner wall structure 11 is provided with a plurality of different recess structures, including an inner wall groove 111 and an inner wall surface 112, which can store lubricating oil in the groove and facilitate the establishment of an oil film. The bearing bush two-end structure 12 is arranged in a thinned shape to reduce wear and tear and improve service life. The bearing bush through-hole structure 13 is used for timely discharge and replacement of lubricating oil.

[0029] As a preferred embodiment of the present embodiment, the inner wall groove 111 structure is an arc-shaped structure, and the long end of the inner wall groove 111 is arranged along the arc-shaped curved line of the bearing bush body 1. The inner wall groove, as a bearing bush inner wall structure 11 with a large oil storage volume, is in communication with the bearing bush through-hole structure 13 to facilitate the discharge and replacement of lubricating oil.

[0030] As a preferred embodiment of the present embodiment, the inner wall surface 112 is a bored corrugated structure 1121. Preferably, the bored corrugated structure 1121 is composed of a plurality of ridge structures with a wave-shaped cross section, which are arranged in cooperation with the arc-shaped curve of the bearing bush body 1. The plurality of ridge structures of the bored corrugated structure 1121 are arranged parallel to each other and perpendicular to the symmetry axis 2.

[0031] Specifically, in order to increase the oil storage capacity and facilitate the establishment of an oil film, the laminated inner wall surface 112 is arranged, which can uniformly store lubricating oil to reduce frictional wear of the bearing bush.

[0032] As a preferred embodiment of the present embodiment, the bearing bush two-end structure 12 includes a thinned ridge surface 121, which is composed of two inclined surfaces and a flat surface. The flat surface is perpendicular to the symmetry axis 2, and the inclined surfaces are two flat surfaces inclined inward from the center to the edge at both ends.

[0033] As a preferred embodiment of the present embodiment, the position of the bearing bush through-hole structure 13 is arranged in cooperation with the position of the inner wall groove 111 structure.

[0034] As a preferred embodiment of the present embodiment, the distance between the bored corrugated structures 1121 of the inner wall surface 112 is 0.25 cm to 0.35 cm, and the surface depth is 0.001 cm to 0.008 cm.

[0035] As a preferred embodiment of the present embodiment, the thinning thickness of the thinning facet 121 is 0.0015 cm to 0.0045 cm.

[0036] The foregoing description of specific exemplary embodiments of the present application is intended to be illustrative only and is not intended to limit the application to the precise forms described. Many modifications and variations are possible in light of the above teachings without departing from the spirit or essential characteristics of the application. The exemplary embodiments were chosen and described in order to explain the principles of the application and its practical application and to allow others skilled in the art to understand the application for various exemplary embodiments with various modifications being applicable. The scope of the application is intended to be limited only by the claims and their equivalents.

Claims

1. A bush structure with both ends thinned and inner surface of the bush bored to have a corrugation, characterized in that, Comprise: The bearing shell body is an arc-shaped curved sheet structure, which comprises a plurality of bearing shell inner wall structures, bearing shell two-end structures and bearing shell through-hole structures; The bearing shell body is also a half-cylindrical structure with the symmetry axis as the core, the bearing shell inner wall structure comprises an inner wall groove and an inner wall surface, the inner wall groove and the inner wall surface are located on one side of the arc inner wall of the bearing shell body, and the inner wall groove is a hollow long strip; the two ends of the bearing shell two-end structure refer to two end surfaces opposite in the direction of the symmetry axis, and the bearing shell two-end structure is used for reducing the wear between the shaft and the bearing shell; the bearing shell through-hole structure penetrates the outer surface of the bearing shell body at one end and the inner surface of the bearing shell body at the other end, and is connected with the inner wall groove.

2. A two-sided reduced-thickness inner surface corrugated bushing structure according to claim 1, characterized in that, The inner wall groove structure is an arc structure, and the long end of the inner wall groove is arranged along the arc bending line of the bearing shell body; The inner wall groove and the bearing shell through-hole structure are communicated to discharge and update the lubricating oil.

3. A two-sided reduced-thickness inner surface bore-honed wave- shaped bearing shell structure as claimed in claim 1, characterized in that The inner wall surface is a bored corrugated structure.

4. A two-sided reduced-thickness inner surface bore-honed wave- shaped bearing shell structure as claimed in claim 3, characterized in that The bored corrugated structure is composed of a plurality of ridge structures with a wave-shaped cross section, the ridge structures are arranged in cooperation with the arc line bending of the bearing shell body, the plurality of ridge structures of the bored corrugated structure are arranged in parallel with each other and perpendicular to the symmetry axis.

5. A two-sided reduced-thickness inner surface boroscoped corrugated bearing shell structure as defined in claim 1, wherein, The bearing shell two-end structure comprises a thinned ridge surface, the thinned ridge surface is composed of two inclined surfaces and a plane, the plane is perpendicular to the symmetry axis, and the inclined surfaces are two planes inclined from the center to the edge at the two ends.

6. A two-sided reduced-thickness inner surface bore-honed wave- shaped bearing shell structure as claimed in claim 1, characterized in that The position of the bearing shell through-hole structure is arranged in cooperation with the position of the inner wall groove structure.

7. A two-sided reduced-thickness inner-surface-broached wave- webbed bearing structure as claimed in claim 3, wherein, The distance between the bored corrugated structures of the inner wall surface is 0.25cm to 0.35cm, and the surface depth is 0.001cm to 0.008cm.

8. A two-sided reduced-thickness inner surface boroscoped corrugated bearing shell structure as defined in claim 5, wherein, The thinned thickness of the thinned ridge surface is 0.0015cm to 0.0045cm.