Heavy type 12-gear high torque transmission assembly

A transmission and high-torque technology, applied in the field of heavy-duty 12-speed high-torque transmission assembly, can solve problems such as engine matching in the torque range, improve the bearing capacity of the auxiliary box, improve the service life and reliability of the whole box, and achieve a clear gear position. Effect

Inactive Publication Date: 2016-10-12
CHINA FIRST AUTOMOBILE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic engine power and service life grades are showing a clear upward trend. The torque range and service life of the existing 12TA series transmissions can no longer match the upgraded engines. Therefore, it is necessary to develop transmission assemblies with large torque capacity and long service life.

Method used

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  • Heavy type 12-gear high torque transmission assembly
  • Heavy type 12-gear high torque transmission assembly
  • Heavy type 12-gear high torque transmission assembly

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specific Embodiment approach

[0024] The purpose of the present invention is to provide a heavy-duty 12-speed high-torque transmission assembly. The technical solution of the present invention adopts a double countershaft structure with the lower left and upper right obliquely, and the main shaft and main shaft gear of the main and auxiliary cases float. The bearing capacity of the transmission is improved by increasing the center distance of the auxiliary case and configuring reasonable shaft tooth parameters. The transmission assembly of the present invention has reasonable gear positions, suitable speed ratio and large first gear speed ratio, and is a 12-speed high-torque transmission assembly with double countershafts with higher reliability, durability and fuel economy. In order to further illustrate the technical solution of the present invention, in conjunction with the accompanying drawings, the specific implementation of the present invention is as follows:

[0025] Such as figure 1 and figure ...

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Abstract

The invention provides a heavy-duty 12-speed high-torque transmission assembly, which is composed of a main box and an auxiliary box installed front and rear. The main shaft and the main shaft gear float radially. The 6 manual gears in the main box are set on the main shaft and connected with the shift fork to realize the gear switching, and the 2 pneumatic gears in the auxiliary box are set on the main shaft and connected with the The synchronizer connected with the shift fork realizes gear position switching, and the input and output gear pairs in the auxiliary box are both helical gears. The invention has reasonable gear positions, suitable speed ratio and large first gear speed ratio, and is a 12-speed high-torque transmission assembly with double countershafts with higher reliability, durability and fuel economy.

Description

technical field [0001] The invention belongs to the technical field of heavy-duty vehicle transmissions, in particular to a heavy-duty 12-speed high-torque transmission assembly. Background technique [0002] As the country continues to promote and implement policies related to energy conservation and emission reduction, as well as the increasingly tense international energy supply situation, domestic truck users in China pay more attention to factors such as vehicle transportation efficiency, purchase costs, and operating benefits. The improvement of automobile technology has brought about the continuous increase of the vehicle load. By matching the large-displacement engine assembly and the small speed ratio drive axle, the economical operating speed and the maximum speed of the vehicle can be improved while ensuring the power performance such as climbing ability. speed while also improving fuel economy. At present, domestic engine power and service life grades are showin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/083F16H3/097F16H3/12F16H57/023F16H57/021F16H57/04F16H61/30
CPCF16H3/083F16H3/097F16H3/12F16H57/021F16H57/023F16H57/0417F16H61/30F16H2057/0206F16H2057/0216
Inventor 任明辉贾军风赫建勇宋磊张晓丽吴玉亮李萍徐娜邵亮高志勇
Owner CHINA FIRST AUTOMOBILE
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