Optimal design method for triangular sliding groove of automobile transmission gear shifting shaft

An optimized design, chute technology, applied in instruments, computing, mechanical equipment, etc., can solve problems such as uneven shifting, power interruption, complex structure, etc., to reduce friction loss and prolong service life.

Inactive Publication Date: 2018-12-14
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the timing of the separation and combination of the two combining elements is improper, the shifting will be unstable. If the overlap is too early, it will cause power interference, and if it is too late, it will cause power interruptio

Method used

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  • Optimal design method for triangular sliding groove of automobile transmission gear shifting shaft
  • Optimal design method for triangular sliding groove of automobile transmission gear shifting shaft
  • Optimal design method for triangular sliding groove of automobile transmission gear shifting shaft

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[0031] Specific implementation plan

[0032] Attached below Figure 1 to Figure 5 To further explain the present invention:

[0033] The straight-shaft chute shifting device is composed of a shift fork system and a shifting drive system. The shifting fork system is composed of shifting fork shaft 1, shifting fork 2 and shifting fork sliding shaft 3. The shifting fork shaft 1 is a circular straight rod with constant cross section. The two ends are fixedly connected with the gearbox housing. The surface is smooth. The fork hole is connected with the fork shaft 1, and the fork 2 can move left and right along the axial direction of the fork shaft 1. The fork sliding shaft 3 is a circular straight rod with a smooth surface. One end is fixedly connected to the fork and the other end Insert the sliding groove of the curved sliding groove shift block 5 and contact the side surface of the sliding groove of the curved sliding groove shift block 5. The shift drive system is composed of a s...

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Abstract

The technical problem to be solved by the invention is to provide an optimal design method for a sliding groove size of a straight-shaft sliding groove type gear shifting device. The method is characterized in that a sliding groove dynamic model of a curved surface sliding groove gear shifting block is established, an optimal design objective function of a sliding groove optimal shape of the curved surface sliding groove gear shifting block is established, and a constraint condition of the sliding groove optimal shape of the curved surface sliding groove gear shifting block is established. According to the sliding groove system dynamic model of the curved surface sliding groove gear shifting block established in the step (1), an optimization algorithm is used for solving a minimum value ofthe optimal and design objective function J which is established in the step (2), then the constraint condition of the sliding groove optimal shape of the curved surface sliding groove gear shiftingblock in the step (3) is used, and therefore optimal design variables of a radius of the designed curved surface sliding groove gear shifting block and a sliding groove height of the curved surface sliding groove gear shifting block are calculated.

Description

technical field [0001] The invention relates to an optimal design method for a direct-axis chute of an automobile transmission, in particular to an optimal design method for a direct-axis chute of an automobile transmission. Background technique [0002] In the automobile industry, the quality of transmission shifting performance directly affects the fuel economy, smoothness of shifting and ride comfort of the car. The main purpose of shifting process control is to increase the smoothness of shifting, make driving more comfortable, reduce the dynamic load of the drive train, increase the service life of parts, reduce the thermal load of clutch friction plates, and improve the reliability and durability of the clutch. Reduce gear shifting impact, power interruption and other unstable shifting phenomena when shifting gears. The process of shifting gears is usually a process in which one combination element is combined and the other combination element is separated. If the ti...

Claims

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Application Information

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IPC IPC(8): F16H63/30F16H63/34G06F17/50
CPCF16H63/30F16H63/34F16H2063/3076G06F30/17G06F30/367
Inventor 刘灿昌刘斌李磊孔维旭万磊刘奎龙周长城刘文晓
Owner SHANDONG UNIV OF TECH
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