Multi-way valve with priority valve on first linkage

A priority valve and multi-way valve technology, applied in the field of multi-way valves, can solve the problems of large volume, complex structure, difficult control, etc., and achieve the effect of small size, fast response and reliable control

Pending Publication Date: 2018-01-23
SHENGBANG GRP +3
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of complex structure, large volume and difficult control in the existing agricultural machinery co

Method used

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Example Embodiment

[0024] The embodiments of the present invention will be further described below in conjunction with the drawings:

[0025] by figure 1 Combine Figure 2-9 As shown, a multi-way valve with a priority valve in the first connection includes a main valve 1 and an operating rod 2. The operating rod 2 is provided in the main valve 1 and slidingly cooperates with the main valve 1. The main valve 1 is equipped with priority valve 3 and main relief valve 4. The main valve 1 is equipped with main pressure oil port P, oil return port T, first working oil port A, second working oil port B and downstream working Port C, the main relief valve 4 is arranged between the main pressure oil port P and the oil return port T, and the operating rod 2 has such that the main pressure oil port P passes through the priority valve 3 and the first working oil port A The first state in communication, the second state in which the main pressure oil port P communicates with the downstream working port C, and ...

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Abstract

The invention discloses a multi-way valve with a priority valve on a first linkage, and solves the problems of complicated structure, large size and high control difficulty in a traditional agricultural machinery control system. The multi-way valve comprises a main valve and an operation rod; the operation rod is arranged in the main valve, and is slidingly matched with the main valve; the main valve is provided with the priority valve and a main overflow valve; a main pressure oil port, an oil return port, a first working oil port, a second working oil port and a lower communication working port are formed in the main valve; the main overflow valve is arranged between the main pressure oil port and the oil return port; and the operation rod has a first state of enabling the main pressureoil port to communicate with the first working oil port by the priority valve, a second state of enabling the main pressure oil port to communicate with the lower communication working port, and a third state of enabling the main pressure oil port to communicate with the second working oil port by the priority valve. The multi-way valve is small in product size, simple in structure, convenient toassemble, reliable in control, fast in response and long in service life.

Description

technical field [0001] The invention relates to a hydraulic system for agricultural machinery, in particular to a first-connected multi-way valve with a priority valve. Background technique [0002] Agricultural machinery refers to various machinery used in crop planting and animal husbandry production, as well as in the primary processing and handling of agricultural and animal products. Agricultural machinery includes agricultural power machinery, farmland construction machinery, soil tillage machinery, planting and fertilization machinery, plant protection machinery, farmland drainage and irrigation machinery, crop harvesting machinery, agricultural product processing machinery, animal husbandry machinery and agricultural transportation machinery, etc. Agricultural machinery in a broad sense also includes forestry machinery, fishing machinery, and rural sideline machinery such as sericulture, beekeeping, and edible fungus cultivation. Agricultural machinery is a relative...

Claims

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Application Information

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IPC IPC(8): F16K11/044F16K15/02F16K17/04
Inventor 姜洪史浙安张晓磊王清送柯稳刘占远石北军
Owner SHENGBANG GRP
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