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Hydraulic stepless speed-change transmission mechanism

A technology of hydraulic stepless speed change and transmission mechanism, which is applied in the direction of transmission devices, fluid transmission devices, mechanical equipment, etc., and can solve problems such as the inability to realize stepless speed regulation, unsmooth operation of automobiles, and large volume of mechanical transmissions, and achieve simple structure , compact structure, high power effect

Inactive Publication Date: 2014-07-02
交城县华昌泰机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using a mechanical transmission, shifting is often accompanied by a sense of frustration, the car is not running smoothly, and the mechanical transmission is large in size, mechanical transmission, frictional resistance is large, fuel consumption increases, and stepless speed regulation cannot be realized

Method used

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  • Hydraulic stepless speed-change transmission mechanism

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Embodiment Construction

[0012] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0013] Such as figure 1 As shown, a hydraulic continuously variable transmission mechanism includes: an engine 1 and a rear axle travel mechanism 2, and is characterized in that it also includes a variable pump 3 and a hydraulic motor 4, the output shaft of the engine 1 and the input of the variable pump 3 The shafts are connected, the high-pressure chamber of the variable displacement pump 3 is connected with the oil inlet of the hydraulic motor 4 through the first oil passage 6, and the low-pressure chamber of the variable displacement pump 3 is connected with the oil outlet of the hydraulic motor 4 through the second oil passage 7 In general, the variable variable pump 3 and the hydraulic motor 4 form a closed circuit, the output shaft of the hydraulic motor 4 is connected to the axle pack of the rear axle running mechanism 2, and the gea...

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Abstract

The invention discloses a transmission mechanism, and particularly discloses a hydraulic stepless speed-change transmission mechanism suitable for farm machines. The hydraulic stepless speed-change transmission mechanism comprises an engine and a rear axle walking mechanism and further comprises a variable pump and a hydraulic motor, an output shaft of the engine is connected with an input shaft of the variable pump, a high-pressure cavity of the variable pump is communicated with an oil inlet of the hydraulic motor through a first oil way, a low-pressure cavity of the variable pump is communicated with an oil outlet of the hydraulic motor through a second oil way, a closed loop is formed by the variable pump and the hydraulic motor, an output shaft of the hydraulic motor is connected with an axle package of the rear axle walking mechanism, and a gear controlling rod is installed on the variable pump and fixed on a swash plate of the variable pump. The hydraulic stepless speed-change transmission mechanism is simple and reasonable in structure, original complex mechanical speed adjustment is replaced by hydraulic speed adjustment transmission, the pausing feeling during gear shifting is avoided, driving is smooth, stepless speed adjustment can be achieved, the speed adjustment range is large, operation is convenient to achieve, the structure layout is simple, practicability is high, and energy is saved.

Description

technical field [0001] The invention relates to a transmission mechanism, in particular to a hydraulic continuously variable transmission mechanism suitable for agricultural machinery. Background technique [0002] The transmission is a very important part of the car. Through the transmission, the control and transformation of the direction and speed of the car can be realized. At present, most of the transmissions used in agricultural machinery are mechanical transmissions. Most of the mechanical transmissions are stepped transmissions. When the engine speed is constant, the stepped transmission has a limited number of fixed value transmission ratios to choose from, such as 5 forward gears and a reverse gear. With a mechanical transmission, gear shifting is often accompanied by a sense of frustration, the car is not running smoothly, and the mechanical transmission has a large volume, mechanical transmission, large frictional resistance, increased fuel consumption, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H39/02B60K17/10
CPCF16H39/02B60K17/10
Inventor 孟凡堂王建王华
Owner 交城县华昌泰机械制造有限公司
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