Seven-gear hydrodynamic-transmission hydraulic system

A technology of hydraulic transmission and hydraulic system, applied in the direction of fluid transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of increasing the hydraulic transmission and the large size of the transmission

Active Publication Date: 2016-03-16
贵州凯星液力传动机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will inevitably increase the additional components of the

Method used

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  • Seven-gear hydrodynamic-transmission hydraulic system
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  • Seven-gear hydrodynamic-transmission hydraulic system

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Embodiment Construction

[0016] The technical solution of the present invention is further described below in conjunction with the accompanying drawings, but the scope of protection is not limited to the description.

[0017] Such as figure 1 As shown, a hydraulic system of a seven-speed hydraulic transmission according to the present invention includes an oil supply oil circuit and a shift control system, and the oil supply oil circuit includes an oil supply pump oil filter 1, an oil supply pump 2, and a safety valve 3 , the main oil pressure regulating valve 4, the main mode solenoid valve 5, the control pressure regulating valve 6 and the oil filter 7, the oil supply pump oil filter 1 is located between the hydraulic oil tank and the oil supply pump 2, the safety valve 3, the main oil supply pump The oil pressure regulating valve 4, the main mode solenoid valve 5 and the control pressure regulating valve 6 are all connected in parallel with the oil supply pump 2, and the main oil pressure regulatin...

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Abstract

The invention discloses a seven-gear hydrodynamic-transmission hydraulic system, and belongs to the technical field of hydraulic transmission. The seven-gear hydrodynamic-transmission hydraulic system comprises an oil supply way and a gear-shifting control system. The oil supply way comprises an oil-supply-pump oil filter, an oil supply pump, a safety valve, a main oil pressure regulating valve, a main-manner electromagnetic valve, a control pressure regulating valve and an oil filter. The gear-shifting control system comprises linkage valves, a plurality of normally-open electromagnetic valves, electromagnetic pressure regulating valves matched with the normally-open electromagnetic valves, a plurality of normally-closed electromagnetic valves and electromagnetic pressure regulating valves matched with the normally-closed electromagnetic valves. According to the technical scheme, the torque of a transmission is changed in a hydrodynamic-transmission and gear combined manner, the transmission ratio is changed accordingly, backing of a vehicle is achieved under the condition that the rotation direction of an engine is not changed, power transmission is interrupted when a gear is at the neutral position, starting and idling of the engine are convenient, gear shifting or power outputting of the transmission is convenient, and the structure of the transmission is more compact accordingly.

Description

technical field [0001] The invention belongs to the technical field of hydraulic transmission, and relates to a vehicle hydraulic control system, in particular to a hydraulic system of a seven-speed hydraulic transmission. Background technique [0002] Hydraulic technology has penetrated into many fields, and has been widely used and developed in civil industry, machine tools, engineering machinery, metallurgical machinery, plastic machinery, agricultural and forestry machinery, automobiles, ships and other industries, and has developed into a system including transmission, control and detection. A complete automation technology. Today, the degree of hydraulic transmission has become one of the important symbols to measure a country's industrial level. For example, 95% of construction machinery, 90% of CNC machining centers, and more than 95% of automatic lines produced in developed countries use hydraulic transmission technology. As a convenient and cheap automation techn...

Claims

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Application Information

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IPC IPC(8): F16H47/02
CPCF16H47/02
Inventor 秦龚玉罗静
Owner 贵州凯星液力传动机械有限公司
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