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Hydraulic multi-way reversing valve

A multi-way reversing valve and reversing valve technology, applied in the field of hydraulic valves, can solve the problems of high cost, complex structure and low cost performance.

Inactive Publication Date: 2020-11-03
韩国昊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the connecting pipeline between the multi-way directional valve and the load-sensing pump is very long, and the internal flow path of the load-sensing multi-way directional valve changes a lot, the maximum load pressure control signal passes through the internal oil circuit and connection of the multi-way directional control valve. When the pipeline is fed back to the compensator of the load-sensing pump, the pressure attenuation is large. In order to ensure a stable flow, the pressure setting value of the pressure compensator of the load-sensing pump must be increased, but this will cause a large flow loss;
[0006] (2) The reversing joints of the load-sensitive multi-way reversing valves in the prior art are mostly closed-center reversing valves, and each reversing joint includes a two-way pressure compensator and a shuttle valve, although better Flow control characteristics, but the structure is extremely complex and costly, and in many actual working conditions, multiple actuators do not need compound actions, resulting in waste of functions and low cost performance

Method used

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  • Hydraulic multi-way reversing valve
  • Hydraulic multi-way reversing valve
  • Hydraulic multi-way reversing valve

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Embodiment Construction

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0026] A reversing valve according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Such as Figure 1 to Figure 7 As shown, the reversing valve according to the embodiment of the present invention includes: an oil inlet joint, at least one reversing joint, and an oil outlet joint.

[0028]The oil inlet unit includes: an oil inlet unit housing 1, a first damper 1d, an oil inlet union end cover 12, a control piston 1a2 with a "┤" shaped cross section,...

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Abstract

The invention provides a reversing valve which comprises an oil inlet joint, at least one reversing joint and an oil outlet joint. The reversing valve in the embodiment is simple in structure, high incost performance and capable of saving energy.

Description

technical field [0001] The invention belongs to the technical field of hydraulic valves, and in particular relates to a hydraulic multi-way reversing valve. Background technique [0002] The multi-way reversing valve is an integrated valve composed of several single-connected reversing valves and several auxiliary valves such as safety relief valves and one-way valves. It has a compact structure and is widely used in construction machinery, construction machinery, and agricultural machinery. and sanitation equipment. The multi-way valve is divided into two structures: the integral type and the piece type. The former is complex in structure and difficult to process. The latter is composed of oil inlet, reversing and oil outlet valves. The structure is simple, the manufacturability is good and the combination flexible. [0003] The existing load-sensing multi-way valve can be applied to engineering machinery including multiple actuators and compound actions, and constitutes ...

Claims

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Application Information

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IPC IPC(8): F16K11/065F15B13/02
CPCF15B13/02F15B2013/002F16K11/065
Inventor 韩国昊李红生邵倩倩
Owner 韩国昊