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Equal ratio type hydraulic machine stepless speed changer

A technology of continuously variable transmission and hydraulic machinery, applied in mechanical equipment, fluid transmission devices, components with teeth, etc., can solve the problems of insufficient power and low efficiency of hydraulic components, and achieve the effect of low cost and wide application

Inactive Publication Date: 2016-06-08
褚秀清
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Problems solved by technology

However, hydraulic transmission also has its own shortcomings. The power of hydraulic components is not large enough and the efficiency is low. These are the two main problems.

Method used

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  • Equal ratio type hydraulic machine stepless speed changer
  • Equal ratio type hydraulic machine stepless speed changer
  • Equal ratio type hydraulic machine stepless speed changer

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Experimental program
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Embodiment Construction

[0014] The present invention will be further described below in conjunction with drawings and embodiments.

[0015] Such as figure 1 , the present invention is mainly made up of 4 parts: flow diversion mechanism, mechanical flow transmission mechanism, hydraulic flow transmission mechanism and confluence mechanism. Planetary rows K1, K2 and K3, fixed shaft gear pairs i1 and i2, brakes Z1 and Z2, clutches L0, L1 and L2 together form a mechanical flow transmission mechanism. Among them, i1 is a diverting mechanism, K1 and K2 are converging mechanisms, and K3 is a high and low gear switching device. The hydraulic flow transmission mechanism is a hydraulic volume speed regulating circuit composed of a two-way variable pump and a two-way variable motor.

[0016] Table 1 is the operation logic table of the hydromechanical continuously variable transmission of the present invention.

[0017]

[0018] As shown in Table 1, the hydraulic-mechanical continuously variable transmissi...

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Abstract

The invention relates to a speed changer, in particular to an equal ratio type hydraulic machine stepless speed changer. The equal ratio type hydraulic machine stepless speed changer is mainly composed of a distribution mechanism, a mechanical flow transmission mechanism, a hydraulic flow transmission mechanism and a flow concentration mechanism. The speed changer has three speed-regulating working sections, namely the pure hydraulic section, the hydraulic machine low-gear section and the hydraulic machine high-gear section, can achieve the technical index required by the power performance of a vehicle and is low in cost and wide in application.

Description

technical field [0001] The invention relates to a speed changer, in particular to a proportional hydraulic mechanical stepless speed changer. Background technique [0002] The function of the vehicle transmission system is to transmit the power of the engine to the drive wheels, and to change the speed and traction according to the requirements of the vehicle. CVT is considered to be an ideal form of vehicle transmission. The CVT system can steplessly change the transmission ratio according to road conditions and engine working conditions to keep the engine running in a high-efficiency working area and achieve the best match between the external conditions of the vehicle and the engine power. Make the vehicle get the best driving performance. [0003] The hydraulic volumetric stepless speed regulation system is a better stepless transmission, which was used in the variable speed drive of tracked vehicles and wheeled vehicles earlier. However, hydraulic transmission also ha...

Claims

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Application Information

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IPC IPC(8): F16H47/04F16H61/40
Inventor 褚秀清
Owner 褚秀清
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