Automobile Drive Shaft Bushing with Annular Flanges and Circular Welding
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Solution Overview
Problem
Existing automobile drive shaft bushings lack a secure connection to the drive shaft, leading to inadequate sealing and wear protection.
Innovation Solution
An automobile drive shaft bushing design featuring a connecting cavity with first and second annular flanges, fixing holes, and a circular welding method to ensure a firm connection and sealing, utilizing tapered peripheral surfaces and annularly arranged fixing holes for secure bolt fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the existing automobile drive shaft bushing structure is used, then the structure is simple, but the connection to the drive shaft is not firm
Solution Approach 1:
The bushing structure is divided into multiple functional components: the bushing body, first annular flange, second annular flange, and multiple fixing holes. This segmentation allows each component to perform its specific function - the flanges provide mounting surfaces, the fixing holes enable bolt connection, and the bushing body provides sealing - thereby achieving firm connection while maintaining reasonable structural complexity
Solution Approach 2:
The first annular flange and second annular flange are integrally formed with the bushing body, creating a unified structure that combines the sealing function of the bushing with the mounting function of the flanges. This merging ensures that the bushing and flanges move as one unit and provides a firm, integrated connection to the drive shaft
2Reliability
If the existing automobile drive shaft bushing structure is used, then the manufacturing process is simple, but the sealing property is insufficient
Solution Approach 1:
The fixing holes are pre-formed in the flanges before final assembly, and the tapered peripheral surfaces are pre-formed on the bushing body. This preliminary action ensures proper alignment and sealing geometry is established before the bushing is installed on the drive shaft, guaranteeing sealing property while streamlining the manufacturing process
Solution Approach 2:
The peripheral surfaces of the bushing body are designed with a specific taper angle (1-3°), which changes the geometric parameters of the sealing interface. This tapered design creates a wedge effect that enhances sealing pressure and prevents leakage, improving sealing property without significantly complicating the manufacturing process
Data Source
AI summary
The invention relates to an automobile drive shaft bushing, comprising a bushing body, wherein, a connecting cavity is arranged in the bushing body, a first annular flange and a second annular flange are arranged in the middle of the bushing body, multiple fixing holes are arranged on the peripheral surface of the first annular flange and the second annular flange, the fixing holes are communicated with the connecting cavity, the bushing body is sleeved on the drive shaft, multiple connecting holes corresponding to the fixing holes are arranged on the peripheral surface of the drive shaft. Thus, the shaft bushing and the drive shaft are connected firmly; meanwhile, two ends of the bushing body are welded to the junction of the drive shaft with a circular welding method, which ensures the sealing property of the connection between the ends of the bushing body and the drive shaft.