Shift control mechanism of transmission

Abstract

The invention relates to a shift control mechanism of a transmission. The shift control mechanism comprises a first shift lever, a second shift lever, a third shift lever and a fourth shift lever, wherein a first shift fork and a first shift drive fork are matched on the upper portion of the first shift lever, a second shift fork and a second shift drive fork are matched on the lower portion of the second shift lever, the lower portions of the third shift lever and the fourth shift lever are matched with a third shift drive fork respectively, and a third shift fork is matched on the upper portion of the fourth shift lever. The shift control mechanism is characterized in that a shift block is composed of a shift finger and a shift cam, a mounting hole is arranged at the center of the shift cam, a shift shaft is perpendicular to the fourth shift lever and matched with the mounting hole on the shift cam, and the shift finger is positioned between inner sides of the first shift fork, the second shift fork and the third shift fork. The shift control mechanism is simple in structure, and capable of achieving shift interlocking and gear selection before dislocating, reducing shift time, and improving safety and service efficiency of the transmission.

Description

technical field [0001] The invention relates to a transmission component, in particular to a transmission shifting mechanism, which can be used in a manual transmission or an automatic transmission. Background technique [0002] The gear shifting control mechanism of the transmission is generally also called the gear selection mechanism. Manually operated sliding gear or sliding sleeve type gear transmissions and shifting mechanisms for selective shifting of such transmissions are well known in the prior art. In recent years, many improvements have been made to such sliding gear or sliding sleeve type transmission shifting mechanisms. For example, in order to simplify the structure of the housing assembly of the transmission and reduce its manufacturing cost, it is known that people have adopted a rectangular shift gear in cross section, also called a flat shift gear and a shift lever. See US Patent No. 4,273,004. In the prior art, the use of interlocking mechanisms of th...

AI Technical Summary

Problems solved by technology

While these interlocks are functionally satisfactory, they are not suitable for all types of shifting mechanisms or are often complex or expensive to manufacture and install

In the prior art, the interlocking of the transmission operating mechanism is generally realized by the interlocking mechanism of the ball and the pin. Although this prior art can be well adapted to some situations and the interlocking is reliable, its structure is complicated and the assembly is troublesome. , and poor fault tolerance

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