Speed changing controller assembly for heavy trucks

Abstract

The invention discloses a speed changing controller assembly for heavy trucks. The speed changing controller assembly for heavy trucks is composed of a speed changing control rod, a speed changing control fixing base and a gear selecting mechanism. The lower portion of the speed changing control rod is fixedly connected to the speed changing control fixing base through a ball stud with a threaded rod, a nut and a gear shifting bulb base. The gear selecting mechanism is composed of a gear selecting boom, a gear selecting transition boom, a gear selecting boom rotation shaft and a gear selecting return spring. One end of the gear selecting transition boom is fixedly connected with the speed changing control rod, and the other end of the gear selecting transition boom is of a bulb structure and is installed in a gear selecting base hole in the gear selecting boom through a gear selecting bulb base. The gear selecting boom rotation shaft is sleeved with the gear selecting return spring. One end of the gear selecting return spring is fixedly connected with the speed changing control fixing base, and the other end of the gear selecting return spring is connected with the gear selecting boom. The gear selecting boom is connected with a flexible speed changing control shaft, so that gear selecting and gear shifting are achieved. The speed changing controller assembly for heavy trucks is high in reliability, good in airtightness, convenient to install and clear in gear and has the neutral-position return function.

Description

technical field [0001] The invention belongs to the field of automobile manufacturing industry and is suitable for a flexible shaft shifting control system of a heavy-duty vehicle, in particular to a shifting manipulator assembly for a heavy-duty truck. Background technique [0002] At present, other heavy-duty trucks in China have no neutral return function, and the structure is complex, and the level of gear selection and shifting performance is low, which directly affects driving comfort. [0003] In addition, the shift lever assembly of the existing medium and heavy trucks in the market either adopts a joint bearing connection structure or a split ball joint connection structure. It is difficult to control the assembly clearance of the manipulator of the joint bearing structure. There is a mechanism clearance in the initial assembly, and the efficiency Low, the sealing control of the manipulator with the split ball head structure is difficult, and the ball head is prone ...

AI Technical Summary

Problems solved by technology

[0002] At present, other domestic heavy-duty trucks do not have the function of neutral return, and the structure is complex, and the level of gear selection and shifting performance is low, which directly affects driving comfort.

[0003] In addition, the shift lever assembly of the existing medium and heavy trucks in the market either adopts a joint bearing connection structure or a split ball joint connection structure. It is difficult to control the assembly clearance of the manipulator of the joint bearing structure. There is a mechanism clearance in the initial assembly, and the efficiency Low, the sealing control of the manipulator with split ball head structure is difficult, and the ball head is easy to enter dust and cause wear, resulting in reduced mechanism efficiency

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