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Intermediate shaft brake for AMT automatic mechanical speed changer

An automatic machine and brake technology, applied in the direction of the axial brake, brake type, mechanical equipment, etc., can solve the problems of unreasonable transmission structure, difficult to control, easy to burn out the braking force, etc., to meet the sensitivity and controllability. Demand, convenient processing, reasonable and reliable structure design

Inactive Publication Date: 2016-07-20
CHINA NAT HEAVY DUTY TRUCK GROUP DATONG GEARCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing transmission is easy to burn out and the braking force is difficult to control due to unreasonable structure, the present invention provides an intermediate shaft brake for AMT automatic mechanical transmission

Method used

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  • Intermediate shaft brake for AMT automatic mechanical speed changer

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Embodiment Construction

[0010] The intermediate shaft brake for AMT automatic mechanical transmission includes a brake housing 1 arranged at the window of the transmission power take-off. The brake housing 1 is provided with a spline shaft 2 and a control cylinder 3, and the outer end of the piston rod of the control cylinder 3 is set. There is a position sensor 4, and a shift fork 5 is arranged on the piston rod of the operating cylinder 3, and a cymbal-shaped friction plate 6 and a drive wheel 7 meshing with the intermediate shaft gear are arranged on the spline shaft 2, and the shift fork 5 is located on the cymbal-shaped friction plate. One side of the sheet 6, the middle of the cymbal-shaped friction sheet 6 is provided with an annular friction sheet 8.

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Abstract

The invention relates to an intermediate shaft brake for an AMT automatic mechanical speed changer, aiming at solving the problems that existing speed changers are easy to burn and the braking force is uneasy to control due to unreasonable structure. The intermediate shaft brake for an AMT automatic mechanical speed changer comprises a brake shell arranged at the window of a power takeoff of the speed changer, wherein a spline shaft and a control cylinder are arranged in the brake shell, a position sensor is arranged at the outer end of a piston rod of the control cylinder, a shifting fork is arranged on the piston rod of the control cylinder, a cymbal-shaped friction plate and a driving wheel meshed with a gear of the intermediate shaft are arranged on the spline shaft, the shifting fork is located at one side of the cymbal-shaped friction plate, and an annular friction plate is arranged in the middle of the cymbal-shaped friction plate. The intermediate shaft brake can remarkably improve the K value linear characteristics of a distance-braking force characteristic curve, can meet the requirements of flexibility and controllability of automatic control force of the AMT speed changer, can greatly improve the heat dissipation performances of the brake and has the advantages of being simple in structure, convenient to machine and low in cost.

Description

technical field [0001] The invention relates to a brake device for a heavy-duty vehicle transmission, in particular to an intermediate shaft brake for an AMT automatic mechanical transmission. Background technique [0002] With the rapid development of AMT transmission technology for heavy-duty vehicles in China, the scope of market adoption is gradually expanding. Now, since AMT transmissions are based on manual transmissions, manual transmissions such as clutch separation and shift forks are automatically manipulated by manual operations. The driver operates the same car as the automatic transmission, which realizes the automation of the manual transmission. Therefore, the shift synchronization performance based on the original mechanical transmission is still limited by the structure of the car body, and it has become the key technology of the AMT transmission. [0003] In order to prevent the volume of the transmission from increasing too much, so that the traditional sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D55/22F16D65/14F16D121/04F16D121/14
CPCF16D55/22F16D65/14F16D2121/04F16D2121/14
Inventor 符东江刘丽许晶伟
Owner CHINA NAT HEAVY DUTY TRUCK GROUP DATONG GEARCO