Hydraulic pump control double-motor transmission system

A hydraulic motor and transmission system technology, applied in control devices, vehicle components, transportation and packaging, etc., can solve the problem of single-pump dual-motor hydraulic transmission design and less research

Pending Publication Date: 2022-06-24
SHIHEZI UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the design of most hydraulic travel systems is only for single-pump single-motor hydraulic speed control systems, and there are relatively few designs and researches on single-pump dual-motor hydraulic transmission and there are deficiencies

Method used

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  • Hydraulic pump control double-motor transmission system
  • Hydraulic pump control double-motor transmission system

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Embodiment Construction

[0010] In order to further illustrate the technical means and effects adopted by the present invention to achieve the purpose of the invention, the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0011] The purpose of the present invention is to provide a hydraulic pump-controlled dual-motor transmission system, which makes up for the defects of the narrow speed range and torque range of the hydraulic system when the current construction machinery is working.

[0012] figure 1 It is the principle diagram of the hydraulic pump-controlled dual-motor transmission system of the present invention, such as figure 1 As shown, a hydraulic pump-controlled dual-motor transmission system includes a hydraulic pump 1, a charge pump 2, hydraulic pump speed regulating mechanisms 6, 7, a hydraulic pump solenoid valve 6, a hydraulic motor solenoid valve 10,

[0013] 11. Hydraulic flow regulating solenoid valve 12, 13, one-way ...

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Abstract

The invention provides a hydraulic pump control double-motor transmission system which comprises a hydraulic pump, an oil supplementing pump, a hydraulic pump speed regulating mechanism, a hydraulic pump electromagnetic valve, a hydraulic motor electromagnetic valve, a hydraulic flow regulating electromagnetic valve, a one-way valve, a throttling valve, a hydraulic motor speed regulating mechanism, a front hydraulic motor, a rear hydraulic motor, a gearbox and a rear axle. The oil supplementing pump is connected with the hydraulic pump, the hydraulic pump is connected with the hydraulic pump speed regulating mechanism, the hydraulic pump speed regulating mechanism is connected with the front hydraulic motor and the rear hydraulic motor, the front hydraulic motor is connected with the gearbox, and the rear hydraulic motor is connected with the rear axle. The transmission mode that the hydraulic pump is connected with the two variable displacement motors in parallel is adopted in the system, the rotating speed range of the double motors is adjusted under the combined action of the hydraulic pump speed adjusting mechanism, the front hydraulic motor speed adjusting mechanism and the rear hydraulic motor speed adjusting mechanism, and the characteristics of being large in stepless speed change range, wide in torque change range and the like are achieved. And the defects of narrow speed change and torque range of a hydraulic system when the existing engineering vehicle works are overcome.

Description

technical field [0001] The invention relates to the technical field of vehicle hydraulic transmission, in particular to a hydraulic pump-controlled dual-motor transmission system. Background technique [0002] The hydraulic transmission system has the characteristics of high power density and reliable operation, and is mainly used in the transmission system of large and medium-sized construction machinery and vehicles. The variable pump-controlled motor is the speed regulating mechanism of the hydraulic system, which transmits energy through flow and pressure. The system can automatically match the output of the pump with the external load through the adjustment function of the controller, so that the flow output from the pump is basically input into the motor, and combined with the gearbox in a different way. gear shift. The characteristics of the speed control mechanism of the hydraulic transmission system seriously affect the speed control performance of the vehicle tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/10
CPCB60K17/10
Inventor 叶好运倪向东陈华军赵永强蔺元刚潘文龙
Owner SHIHEZI UNIVERSITY
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