Manual gear shifting mechanism assembly

Abstract

The invention provides a manual gear shifting mechanism assembly which comprises a gear shifting rod, a closed ball seat assembly and an upper cover arranged at the top end of the ball seat assembly and an upper cover used for limiting motion of the gear shifting rod together with the ball seat assembly. A spherical protruding movable part is arranged on the gear shifting rod. The ball seat assembly comprises a sleeve body perpendicularly connected to the movable part in a sleeving manner, a through groove installing the movable part is formed in the sleeve body, the gear shifting rod penetrates the upper cover and the ball seat assembly, and the movable part is rotationally limited in the through groove. By means of the manual gear shifting mechanism assembly, the ball seat assembly is designed to be in a closed type, powerful die releasing and sizing technology is not needed, the size stability and structural strength of the ball seat assembly are improved, meanwhile, a lubricating grease groove forming a closed cavity with the spherical face of the movable part is distributed in the inner wall of the sleeve body of the ball seat assembly, and descending of the gear shifting durability is effectively prevented.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a manual shift mechanism assembly. Background technique [0002] With the increasingly fierce competition in the automobile industry, the product quality requirements of manual shift mechanism assemblies that can be widely used in different automobile categories are getting higher and higher. However, the design of the ball seat assembly in previous development projects was not refined enough, resulting in poor dimensional consistency of the parts, and during the use of the vehicle, the product’s shifting sound quality and shifting looseness attenuated quickly, which made users feel uncomfortable. There are frequent complaints about the sound quality of manual gear shifting and the loose feel of shifting. [0003] At present, most of the connection structure of the ball seat assembly in the manual shift mechanism in the automotive field is a snap-in integrated ball seat asse...

AI Technical Summary

Problems solved by technology

However, the design of the ball seat assembly in previous development projects was not refined enough, resulting in poor dimensional consistency of the parts, and during the use of the vehicle, the product’s shifting sound quality and shifting looseness attenuated quickly, which made users feel uncomfortable. There are often complaints about the sound quality of manual gear shifting and the loose feeling of shifting

[0003] At present, most of the connection structure of the ball seat assembly in the manual shift mechanism in the automotive field is a snap-in integrated ball seat assembly and the rigid connection of the support. In order to ensure the convenience of installation, the snap-fit ​​connection usually uses a transition Coordination, theoretically there is an installation gap, which cannot isolate the vibration transmitted from the car body to the shift lever, and the shift sound is relatively crisp, so there is a risk of the quality of the shift sound and the loose feeling of the shift; the buckle integrated ball seat component injection molding process Due to the strong demoulding process, the dimensional stability of the spherical surface needs to be guaranteed by the shaping process, which will lead to a decrease in structural strength; and the ball seat assembly is a snap connection, and the connection strength at the snap joint is relatively weak. In view of manual vehicle shifting action Frequent, and the force generated by each shifting action will act on the clamping joint. After a long period of durability of the vehicle, the clamping joint will become loose, which will reduce the quality of the shifting sound and increase the looseness of the shifting.

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