Gear shifting integrated device and transmission

Abstract

The invention discloses a gear shifting integrated device and a transmission. The gear shifting integrated device comprises an inner gear shifting sensing block, a gear selecting and shifting shaft, a positioning sleeve and a tappet rod, wherein the inner gear shifting sensing block is constructed into a hollow structure; the gear selecting and shifting shaft is rotatably arranged on the inner gear shifting sensing block, a shifting lever is arranged on the gear selecting and shifting shaft, and the free end of the shifting lever is suitable for being matched with shifting blocks of a plurality of shifting fork shafts; the positioning sleeve is arranged on the gear selecting and shifting shaft and can rotate along with the gear selecting and shifting shaft, and a sliding chamber of which one side is open is formed in the positioning sleeve; one end of the tappet rod extends into the sliding chamber, a compression spring is arranged between one end of the tappet rod and the bottom wall of the positioning sleeve, the other end of the tappet rod is abutted with the inner side surface of the bottom wall of the inner gear shifting sensing block, and the other end of the tappet rod can rotate along with the positioning sleeve so as to slide on the inner side surface of the bottom wall of the inner gear shifting sensing block; and the inner side surface of the bottom wall of the inner gear shifting sensing block is constructed into a curved surface so as to increase the gear selecting hand feeling. According to the gear shifting integrated device disclosed by the invention, the gear selecting hand feeling is good.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a gear shifting integration device and a transmission. Background technique [0002] The gear selection and shifting performance of a car transmission is one of the car performances that the driver feels most directly, and it is also an important indicator for evaluating the drivability of a vehicle. The shifting performance of the transmission mainly includes the shifting force, the clarity of shifting, smoothness, noise, etc. In addition to the influence of the synchronizer itself, the quality of the shifting mechanism directly affects the performance of shifting . At present, the gear selection mechanism of the transmission is composed of multiple parts such as the gear selection shaft, the gear selection fork shaft, and the guide block. There are many assembly links, many parts are involved, and the assembly performance is relatively discrete. [0003] The existing shift p...

AI Technical Summary

Problems solved by technology

First, the shift guide block changes the compression distance by rotating, and the spring force continues to compress. Due to the influence of multiple errors such as positioning point processing errors and positioning mechanism installation errors, the shifting force will deviate and affect the shifting feel; second, shifting The guide block rotates to compress the spring of the positioning mechanism, and the compression force changes with the angle, which affects the shift force control

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