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A locking hydraulic torque converter for construction machinery

A technology for torque converters and construction machinery, applied in mechanical equipment, fluid transmission devices, belts/chains/gears, etc., can solve the problems of low efficiency and high vehicle fuel consumption, and achieve low impact, good fuel efficiency and power. Excellent effect of resistance and torsional vibration damping characteristics

Active Publication Date: 2017-01-04
SHAANXI AEROSPACE POWER HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems of low efficiency and high fuel consumption of the existing three-element centripetal turbine torque converter, the present invention provides a lock-up hydraulic torque converter for construction machinery

Method used

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  • A locking hydraulic torque converter for construction machinery
  • A locking hydraulic torque converter for construction machinery
  • A locking hydraulic torque converter for construction machinery

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Experimental program
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Effect test

Embodiment Construction

[0061] Such as figure 1 As shown, the closed-type hydraulic torque converter for engineering machinery includes a cover wheel assembly, a turbine assembly, a pump wheel assembly and a guide wheel assembly; the cover wheel assembly includes a cover wheel hub 21 and a cover wheel shell 22; the turbine assembly includes a turbine hub 72, The turbine body 71; the pump wheel assembly includes a pump wheel hub 91 and the pump wheel body 92; the guide wheel assembly includes a guide wheel body 81 and an outer race 82; and also includes a cover vortex working chamber formed by the cover wheel assembly, the turbine and the turbine hub Clutch assembly and piston assembly in.

[0062] Such as figure 2 As shown, the clutch assembly includes a shock absorber 10, a friction plate 5, a disc hub 13, and a baffle 6; the piston assembly includes a piston 3, a first sealing assembly 1, and a second sealing assembly 4; the baffle 6 is fixed on the cover wheel shell 22 Above, one end of the dis...

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Abstract

The invention relates to a locking type hydraulic torque converter for engineering machinery. The locking type hydraulic torque converter comprises a clutch assembly and a piston assembly, wherein the clutch assembly and the piston assembly are arranged in a cover and turbine working chamber formed by a wheel cover assembly and a turbine assembly. The clutch assembly comprises a shock absorber, a friction plate, a disk hub and a baffle. The piston assembly comprises a piston, a first sealing component and a second sealing component. The baffle is fixed to a wheel cover shell. One end of the disk hub is connected with a turbine hub, and the other end of the disk hub makes contact with the shock absorber. The friction plate is fixed to the shock absorber. The inner surface of a circular ring body makes contact with a wheel cover hub through the first sealing component. The outer surface of the circular ring body makes contact with the wheel cover shell through the second sealing component. A spline is arranged on the inner wall of the wheel cover shell. A limiting stop dog conducts guide motion along the spline to act on the friction plate. In order to solve the technical problems that an existing three-element centripetal turbine type hydraulic torque converter is low in efficiency and a vehicle is high in fuel consumption, cascades of the hydraulic torque converter are reasonably designed, matching between the hydraulic torque converter and an engine is optimized, and consequently good dynamic properties are obtained.

Description

technical field [0001] The invention relates to a lock type hydraulic torque converter, which is mainly used in engineering machinery vehicles. Background technique [0002] The hydraulic torque converter is a core component in the transmission system of construction machinery. It is installed between the engine and the gearbox. It uses the flow of liquid to smoothly transmit the engine torque to the gearbox, and can effectively attenuate the torsional vibration and vibration of the engine and transmission system. Dynamic load, so that the construction machinery vehicle equipped with this component has good starting performance, stability and automatic adaptability to external loads. Significantly extend the service life of the engine and transmission system, enable the vehicle to obtain good low-speed performance, and improve the ability to pass through various complex road surfaces. The existing three-element centripetal turbine torque converter includes a turbine, a guid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H41/22F16H41/24
CPCF16H41/22F16H41/24F16H41/26
Inventor 卜正锋张溥王宏卫崔凯刘秋香刘莲张宝华支军陈凯
Owner SHAANXI AEROSPACE POWER HIGH TECH
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