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Direct-acting overflow motor and hydraulic source loop thereof

A direct-acting, motor technology, applied in servo motor components, servo meter circuits, fluid pressure actuating devices, etc., can solve the problems of limited hydraulic source circuit application, unadjustable output power, large overflow loss, etc. Fast time, low investment cost, small overflow loss effect

Active Publication Date: 2019-07-23
圆幂新能源科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the shortcomings of non-adjustable output power, large overflow loss, and low efficiency, it is not suitable for high-pressure and large-flow hydraulic systems, which limits the application of this type of hydraulic source circuit.

Method used

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  • Direct-acting overflow motor and hydraulic source loop thereof
  • Direct-acting overflow motor and hydraulic source loop thereof
  • Direct-acting overflow motor and hydraulic source loop thereof

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.

[0023] In describing the present invention, it is to be understood that the terms "radial", "axial", "upper", "lower", "top", "bottom", "inner", "outer" etc. indicate orientation Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , and the...

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Abstract

The invention discloses a direct-acting overflow motor and a hydraulic source loop thereof. The direct-acting overflow motor comprises an air filter, a first stop valve, a pressure adjustment screw, apressure measurement oil path, a motor member, an oil bottle, a pressure adjustment device shell body, a pressure measurement piston rod, a pressure measurement spring, a variable piston rod, and a swash plate push rod. According to the direct-acting overflow motor and the hydraulic source loop thereof, system pressure oil is led into a pressure measurement cavity through the pressure measurementoil path, and control pressure oil is enabled to directly act on a pressure measurement piston, and when a control pressure is greater than a spring force, the pressure measurement piston rod moves,and achieves a balanced state at a new position with the spring force; the pressure measurement piston rod moves to push oil sealed in a displacement amplification cavity to move, a force is transferred to a variable piston to drive the variable piston to move, and the purpose of increasing a displacement is achieved through the section area difference between the pressure measurement piston rod and the variable piston rod; and the variable piston rod drives the swash plate push rod to rotate to change the inclination angle of a motor swash plate, so that the displacement of a motor is changedto adapt to the overflow flow rate change of a system, and the pressure of an oil inlet port of the motor is enabled to keep constant.

Description

technical field [0001] The invention relates to the technical field of hydraulic systems, in particular to a direct-acting overflow motor and a hydraulic source circuit thereof. Background technique [0002] The quantitative pump-overflow valve hydraulic source circuit has the advantages of simple structure and fast response time, and is a pressure regulating circuit widely used in hydraulic systems at present. However, due to the shortcomings of non-adjustable output power, large overflow loss, and low efficiency, it is not suitable for high-pressure and large-flow hydraulic systems, which limits the application of this type of hydraulic source circuit. This technology first supplies oil through the hydraulic pump, a part of the oil is supplied to the hydraulic system, and the rest is overflowed back to the oil tank through the overflow valve, and the working pressure of the system is adjusted through the overflow valve. [0003] When the hydraulic oil source pressure regu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F15B21/14
CPCF15B13/02F15B21/14F15B2211/20515F15B2211/20538F15B2211/25F15B2211/88
Inventor 刘思远冯晓雄蒋川徐东来
Owner 圆幂新能源科技(上海)有限公司
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