Bearing bush
By designing a semicircular bearing shell, the positioning lip is vertically driven out from the top of the bearing shell body, and combined with the structure of annular guide groove and radial through-hole, the problem of the traditional bearing shell positioning lip is easily cracked, and the oil removal and structural strength are reduced. effect.
Patent Information
- Application Number
- CN202421429233.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The positioning lip of traditional bearing shells is prone to cracking during processing, resulting in gaps, affecting the working performance of the engine, and reducing production efficiency and safety.
A semicircular bearing shell is designed, with an annular guide groove and radial through holes in the middle of the inner circle of the body. The positioning lip is vertically downward from the top of a pair of mouths of the bearing shell body. The longitudinal section of the positioning lip is an inverted right-angle triangle, deviating from the The center position is dislocated from the annular guide groove.
Through this design, burrs are prevented from occurring around the positioning lip, oil removal of bearing shells is reduced, and structural strength and lubricating effect of bearing shells are improved.
Smart Images
Figure CN222436857U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an improved invention of a bearing bush. Background Art
[0002] The traditional locating lip is in the shape of a boss. After the bearing is formed, a boss is punched out from the alloy surface of the bearing, that is, the inner circle of the bearing, to the outside. This punching method is prone to cracking at the junction of the locating lip and the half surface, leaving a small gap. This gap will cause oil unloading and reduced oil pressure when the engine is working. In addition, this structure will lead to low production efficiency and poor safety during processing. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a bearing bush.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: the bearing shell includes a bearing shell body, which is characterized in that the bearing shell body is semicircular, an annular guide groove is provided in the middle of the inner circle of the bearing shell body, a radial through hole is provided in the annular guide groove, and a pair of openings of the bearing shell body are punched vertically downward from the top to form a positioning lip, and the positioning lip is located on the outer circle of the bearing shell body.
[0005] The longitudinal section of the positioning lip is an inverted right triangle, and the right angle is adjacent to the outer circle of the bearing body.
[0006] The positioning lip is arranged offset from the center position of the matching opening of the bearing shell body, and the corresponding positioning lip and the annular guide groove are staggered.
[0007] There are four radial through holes, which are symmetrically distributed in pairs in the annular guide groove.
[0008] The utility model has the beneficial effect that the improved bearing bush has a positioning lip vertically protruding downward from the top of a pair of openings of the bearing bush body, which can prevent burrs from being generated around the positioning lip and reduce oil unloading of the bearing bush. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.
[0010] Figure 1 It is a structural schematic diagram of the utility model.
[0011] Figure 2 It is an axial schematic diagram of the utility model. DETAILED DESCRIPTION
[0012] The accompanying drawings show the structure of the utility model, and the following further describes its relevant details in conjunction with the accompanying drawings. Figure 1-2The bearing includes a bearing body 1, which is semicircular. An annular guide groove 2 is provided in the middle of the inner circle of the bearing body 1, and a radial through hole 3 is provided in the annular guide groove 2. The annular guide groove 2 cooperates with the radial through hole 3 to realize oil conduction. A pair of openings of the bearing body 1 are punched out vertically downward from the top with a positioning lip 4. The positioning lip 4 is located on the outer circle of the bearing body 1. Specifically, the bearing material can be positioned, and the positioning lip 4 punch is started. The positioning lip 4 punch is used to punch out the positioning lip 4 vertically downward from the top of the bearing pair. This positioning lip 4 structure can prevent burrs from being generated around the positioning lip 4 and reduce oil unloading from the bearing.
[0013] As a further improved specific implementation, the longitudinal section of the positioning lip 4 is an inverted right triangle, and the right angle is adjacent to the outer circle of the bearing body 1, and the triangle is exposed to form a positioning.
[0014] As a further improved specific implementation method, the positioning lip 4 is arranged away from the center position of the counterpart of the bearing body 1 , and the corresponding positioning lip 4 and the annular guide groove 2 are staggered to ensure the structural strength of the bearing body 1 .
[0015] As a further improved specific implementation, the groove walls on both sides of the annular guide groove 2 are arranged to be tilted in opposite directions to facilitate cutting and forming.
[0016] As a further improved specific implementation, there are four radial through holes 3, which are symmetrically distributed in pairs in the annular guide groove 2, so as to guide the oil reasonably and ensure the lubrication effect.
[0017] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A bearing bush, comprising a bearing bush body, characterized in that: The bearing body is semicircular, an annular guide groove is provided in the middle of the inner circle of the bearing body, a radial through hole is provided in the annular guide groove, a pair of openings of the bearing body are punched vertically downward from the top to form a positioning lip, and the positioning lip is located on the outer circle of the bearing body.
2. The bearing bush according to claim 1, characterized in that: The longitudinal section of the positioning lip is an inverted right triangle, and the right angle is adjacent to the outer circle of the bearing body.
3. The bearing bush according to claim 1, characterized in that: The positioning lip is arranged offset from the center position of the matching opening of the bearing shell body, and the corresponding positioning lip and the annular guide groove are staggered.
4. The bearing bush according to claim 1, characterized in that: The groove walls on both sides of the annular guide groove are arranged to be inclined in opposite directions.
5. The bearing bush according to claim 1, characterized in that: There are four radial through holes, which are symmetrically distributed in pairs in the annular guide groove.