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A hydraulic reversing circuit without channeling and its reversing method

A hydraulic and cross-flow technology, which is applied in the direction of fluid pressure actuation devices, fluid pressure actuation system components, servo meter circuits, etc., can solve the problems of ineffective control of oil pollution and shuttle valve cross-flow, etc., to improve work efficiency Reliability, reduced equipment failure rate, and wide-ranging effects

Active Publication Date: 2018-08-21
LANDING GEAR ADVANCED MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 2. This circuit cannot effectively control the degree of oil pollution
However, seven years have passed, and no one in this industry has considered applying shuttle valves to hydraulic reversing to solve the problem of channeling

Method used

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  • A hydraulic reversing circuit without channeling and its reversing method
  • A hydraulic reversing circuit without channeling and its reversing method
  • A hydraulic reversing circuit without channeling and its reversing method

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Embodiment Construction

[0037] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0038] A hydraulic reversing circuit without channeling. The reversing circuit does not change the original function of the reversing circuit. It creatively cooperates with a new type of shuttle valve and arranges it in combination, so that the hydraulic reversing circuit realizes that the circuit independently passes through the oil tank. Effect. In this embodiment, the shuttle valve disclosed in "A New Structural Design of Shuttle Valve" disclosed in the fourth issue of "Hydraulic and Pneumatic" in 2009 is preferably used.

[0039] The principle of the hydraulic reversing circuit see figure 2 , image 3 As shown, it consists of a reversing valve 1, a hydraulic cylinder 2, a first shuttle va...

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Abstract

The invention discloses a hydraulic reversing loop without fluid channeling, and a reversing method thereof. The hydraulic reversing loop comprises an electromagnetic reversing valve communicated with an oil inlet P of a hydraulic system, a cooler communicated with an oil outlet T of an oil tank hydraulic system, a hydraulic cylinder, a first shuttle valve and a second shuttle valve; the first shuttle valve and the second shuttle valve are both arranged between the hydraulic cylinder and the oil outlet T of the oil tank hydraulic system, as well as between the hydraulic cylinder and the electromagnetic reversing valve; the oil input at the left end and the oil input at the right end of the hydraulic cylinder are communicated with an oil outlet of the electromagnetic reversing valve through the first shuttle valve and the second shuttle valve respectively, and the oil return at the left end and the oil return at the right end of the hydraulic cylinder pass through the first shuttle valve and the second shuttle valve, and directly flow into the oil outlet T of an oil tank hydraulic system through the cooler. The hydraulic reversing loop enables a working fluid reversing circularly to be directly introduced and returned to an oil tank, thereby avoiding repeated fluid channeling between elements and pipelines where the working fluid passes before and after reversing.

Description

technical field [0001] The invention relates to a hydraulic reversing circuit without channeling and a reversing method thereof, belonging to the technical field of hydraulic system design. Background technique [0002] The hydraulic reversing circuit is used to change the movement direction of the actuator. This kind of circuit is mostly realized by using various reversing valves. It is generally used to control the reciprocating reversing of the hydraulic cylinder, or the positive and negative rotation of the hydraulic motor. . This circuit has a wide range of uses in hydraulic equipment. It can be said that most hydraulic equipment needs to use hydraulic reversing circuits, such as: the advance and retreat of machine tool holders, the lifting of forklift brackets, etc. [0003] Take the commonly used hydraulic cylinder reversing circuit as an example for further explanation. [0004] figure 1 The hydraulic reversing circuit shown is composed of electromagnetic reversin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B21/00F15B13/04
CPCF15B13/028F15B13/0402F15B21/001F15B2211/3052F15B2211/31558
Inventor 吕少力王保相李华汪赵宏王秋香
Owner LANDING GEAR ADVANCED MFG
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