Transmission shifting mechanism assembly

Abstract

The invention belongs to the field of automobile transmissions, and particularly relates to a transmission shifting mechanism assembly. A four-fork-shaft structure is adopted, a self-locking device, an interlocking device and a reverse gear locking device are included, and meanwhile a reverse gear and neutral position triggering mechanism is included. The transmission shifting mechanism assembly comprises a transmission upper cover, a first-second gear shifting fork shaft, a third-fourth gear shifting fork shaft, a fifth-sixth gear shifting fork shaft and a reverse gear shifting fork shaft, and altogether four shifting fork shafts are arranged. Each shifting fork shaft is fixedly provided with a gear shifting guide block and a gear shifting fork. The distribution positions of the four gear shifting guide blocks are even and form four gear selecting positions, and a rail groove which allows a gear shifting block to move is formed in the middle of the positions. Fork feet of the four gear shifting forks are in an arc shape, and the four arcs are concentric in the radial direction. The fork feet of the four gear shifting forks are inserted into a groove of a first-second gear shifting tooth sleeve, a groove of a third-fourth gear shifting tooth sleeve, a groove of a fifth-sixth gear shifting tooth sleeve and a groove of a reverse gear shifting tooth sleeve. The first-second gear shifting guide block and the first-second gear shifting fork are of an integral structure. The transmission shifting mechanism assembly is simple in structure, reliable in quality and portable in gear shifting, and improves the dynamic property, the fuel economy and the handling comfort of an entire automobile.

Description

technical field [0001] The invention belongs to the field of automobile transmissions, and in particular relates to a transmission shift mechanism assembly. Background technique [0002] At present, the domestic heavy-duty vehicle market has higher and higher requirements for the vehicle's heavy load, high efficiency, energy saving and reliability, and the shift mechanism, as an important part of the transmission, has more and more influence on the vehicle's fuel economy and handling comfort. Big. At present, the existing domestic automobile transmission shifting mechanism has a complex structure and takes up a lot of space for installation. For example, the shift fork and the fork claw are designed as two parts, which need to be connected to the fork shaft through the sleeve. There are a large number of parts and the shifting performance is unstable. In order to meet the needs of maximizing user benefits, the shift mechanism is required to have the advantages of simple str...

AI Technical Summary

Problems solved by technology

At present, the existing domestic automobile transmission shift mechanism has a complex structure and takes up a lot of space for installation. For example, the shift fork and the fork claw are designed as two parts, which need to be connected with the fork shaft through the sleeve. There are a large number of parts and the shift performance is unstable.

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