Control shaft assembly of internal gear selecting and shifting device of automobile gearbox

Abstract

The invention relates to a control shaft assembly, and particularly relates to a control shaft assembly of an internal gear selecting and shifting device of an automobile gearbox, which belongs to the technical field of automobile gearbox equipment. The control shaft assembly comprises a control shaft, wherein a gear shifter assembly and a back three-gear shifting finger respectively sleeves the control shaft, and a first ribbing group and a second ribbing group are respectively arranged in the connecting positions of the control shaft, the gear shifter assembly and the back three-gear shifting finger; the gear shifter assembly comprises a gear shifter, a front four-gear shifting finger and a gear shifter shaft sleeve, and the gear shifter, the front four-gear shifting finger and the gear shifter shaft sleeve are connected into a whole by adopting a welding manner; a first process groove and a second process groove are respectively formed in the front and back ends of a center groove. According to the control shaft assembly, ribbing structures are formed among the control shaft, the gear shifter assembly and the back three-gear shifting finger, so that torque can be stably transferred, the installation is convenient, and the use effect is good; the first process groove and the second process groove are formed, so that the center groove is easy to form, the deformation in a forming process is greatly reduced, and the manufacturing accuracy of parts is increased.

Description

technical field [0001] The invention relates to a control shaft assembly, in particular to a control shaft assembly of a gear selection and shifting device inside an automobile gearbox, and belongs to the technical field of automobile gearbox equipment. Background technique [0002] The automobile gearbox control device is an important component in the automobile gearbox. If it is damaged during the driving process of the automobile, it will easily lead to traffic accidents, and even cause the tragedy of car crash. At present, the shifter components of the automotive transmission control device on the market have the following problems: [0003] 1. Only one process slot is opened before the center slot of the shifter is formed, which causes large circumferential deformation during the forming process of the part, and the production accuracy is low; [0004] 2. The shifter is made of precision casting or extruded parts. After forming, the surface roughness is low, the dimens...

AI Technical Summary

Problems solved by technology

[0003] 1. Only one process slot is opened before the center slot of the shifter is formed, which causes large circumferential deformation during the forming process of the part, and the production accuracy is low;

[0004] 2. The gear shifter is made of precision casting or extrusion. The surface roughness after molding is low, the dimensional accuracy is not high, and the edges and corners of the parts are not easy to form, which directly affects the shifting feel and service life.

[0005] 3. The control shaft adopts the optical shaft to cooperate with other parts to transmit the shifting torque. This kind of art has a high scrap rate in the production process, and the tolerance of the parts is relatively sensitive, the production is unstable, and quality accidents are easy to occur

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