Two-section hydraulic and mechanical compound stepless transmission device

A technology of continuously variable transmission and hydraulic machinery, which is applied to transmission devices, mechanical equipment, fluid transmission devices, etc., and can solve the problems of large mass, high cost, large mass and volume, etc.

Active Publication Date: 2017-02-01
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, compared with the hydraulic continuously variable transmission, its own mass is large and the cost is high. Compared with the hydraulic transmission, it requires a large mass and volume to transmit the same power.

Method used

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  • Two-section hydraulic and mechanical compound stepless transmission device

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Embodiment Construction

[0018] figure 1It is a structural schematic diagram of the present invention; as shown in the figure, the two-stage hydromechanical compound continuously variable transmission device of this embodiment includes a power input shaft 7, a power output shaft 28 and a power transmission for the power output shaft 28 to the variable speed transmission assembly of the power output shaft 28; the variable transmission assembly includes a variable hydraulic pump 3, a hydraulic motor 4 that converts the hydraulic pressure energy output by the variable hydraulic pump 3 into rotational power, a first planetary gear mechanism and a second Planetary gear mechanism; the first planetary gear mechanism can be used as a power distribution mechanism to distribute the power of the power input shaft 7 or as a speed reduction mechanism to reduce the power output of the power input shaft 7; when the first planetary gear mechanism is used as a power distribution mechanism, it can The power distributio...

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Abstract

The invention discloses a two-section hydraulic and mechanical compound stepless transmission device, which comprises a power input shaft, a power output shaft and a variable-speed driving component used for transferring power of the power output shaft to the power output shaft; the variable-speed driving component comprises a hydraulic pump, a hydraulic motor and two groups of planet gear mechanisms. By virtue of the transmission device, speeds of different operation vehicles at different stages are adjusted according to requirements; the transmission device ensures that the operation vehicles are capable of realizing a stepless speed adjustment function, reducing impact during a vehicle gear shift process and improving the vehicle comfort while having the characteristics of high transmission efficiency, low oil consumption, small displacement and the like.

Description

technical field [0001] The invention relates to the field of transmission devices, in particular to a two-stage hydraulic-mechanical compound continuously variable transmission device. Background technique [0002] During the driving process of the vehicle, the load it receives is constantly changing with the road conditions, the driving state and the weight of the vehicle body itself. For high-power special work vehicles, such changes are especially obvious. Compared with special operation vehicles, ordinary road vehicles face a single working condition and transmit low power, and the cost of stepped gears is low and can meet the requirements of road working conditions. However, due to the large power transmitted by the special operation vehicle and the harsh environment, the load it receives is constantly fluctuating and changing, and the ordinary stepped transmission cannot meet the best power performance and fuel economy of the vehicle under various working conditions. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H47/08F16H39/02
CPCF16H39/02F16H47/08
Inventor 黄国勤陈聪林志峰于亚鹏
Owner CHONGQING UNIV
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