Multifunctional electromagnetic control multi-way valve structure

Abstract

The utility model discloses a multifunctional electromagnetic control multi-way valve structure which comprises a plurality of working systems, the working systems are controlled through a first hydraulic control system or a second hydraulic control system, and the first hydraulic control system comprises a first hydraulic oil way and a second hydraulic oil way. The first hydraulic oil way and the second hydraulic oil way are respectively connected with one inner cavity of the oil cylinder, the first hydraulic oil way and the second hydraulic oil way are both connected with a working oil port of the three-position four-way electromagnetic valve, the three-position four-way electromagnetic valve is respectively connected with the hydraulic source and the oil return tank, and one-way valves are respectively arranged on the first hydraulic oil way and the second hydraulic oil way.

Description

Technical Field

[0001] The utility model relates to a multifunctional electromagnetic controlled multi-way valve structure. Background Art

[0002] A harvester is a machine that harvests crops in one go. It completes harvesting and threshing at one time, and collects the grains into storage bins, and then transports the grains to transport vehicles via conveyor belts. It can also be harvested manually, with rice, wheat and other crops’ straw spread out in the field, and then picked up and threshed with grain harvesters. Crop harvesting machinery that harvests grains and straws of cereal crops such as rice and wheat. It includes harvesters, reapers, balers, grain combine harvesters and grain threshers. Grain harvesters are developed on the basis of various harvesting and threshing tools.

[0003] Existing harvester headers usually use hydraulic systems to control actions. However, in actual use, the requirements for hydraulic oil circuits are more inclined to stability and easy operation. The existing hydraulic oil circuit structure is relatively complex and the operation is cumbersome, which is not conducive to personnel quickly learning to operate. Utility Model Content

[0004] The purpose of the utility model is to solve the above deficiencies in the prior art and to provide a multifunctional electromagnetic controlled multi-way valve structure.

[0005] A multifunctional electromagnetically controlled multi-way valve structure includes multiple working systems, which are controlled by a first hydraulic control system or a second hydraulic control system. The first hydraulic control system includes a first hydraulic oil circuit and a second hydraulic oil circuit. The first hydraulic oil circuit and the second hydraulic oil circuit are respectively connected to an inner cavity of a cylinder, and the first hydraulic oil circuit and the second hydraulic oil circuit are both connected to the working oil port of a three-dimensional four-way solenoid valve. The three-position four-way solenoid valve is respectively connected to a hydraulic source and a return oil tank, and a one-way valve is respectively provided on the first oil circuit and the second oil circuit.

[0006] In order to facilitate the control of the oil circuit, the one-way valve is a hydraulically controlled one-way valve.

[0007] In order to adapt to various working requirements, the second hydraulic control system includes a third hydraulic oil circuit and a fourth hydraulic oil circuit. The third hydraulic oil circuit and the fourth hydraulic oil circuit are respectively connected to an inner cavity of the oil cylinder, and the third hydraulic oil circuit and the fourth hydraulic oil circuit are both connected to the working port of the three-position four-way solenoid valve. The three-position four-way solenoid valve is respectively connected to the hydraulic source and the return oil tank. A two-position two-way solenoid valve 1 is respectively provided on the third oil circuit and the fourth oil circuit. One station of the two-position two-way solenoid valve 1 has a one-way cut-off function, and its outlet is connected to the inner cavity of the oil cylinder.

[0008] In order to realize the switch, a two-position two-way solenoid valve 2 is provided at the hydraulic source, and the two-position two-way solenoid valve 2 includes a normally open position and a normally closed position.

[0009] In order to prevent excessive hydraulic pressure in the oil circuit, an overflow valve is installed between the hydraulic source and the return oil tank.

[0010] Beneficial effects: Compared with the prior art, the utility model controls the opening and closing of the entire oil circuit through a two-position two-way solenoid valve, prevents excessive hydraulic pressure in the oil circuit through a relief valve, controls the flow direction of the hydraulic oil through a three-position four-way solenoid valve, controls different actions of the oil cylinder, and maintains the pressure in the oil cylinder through a one-way valve and a two-position two-way solenoid valve. The overall structure is simple and easy to operate, which is convenient for subsequent maintenance and troubleshooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of a multifunctional electromagnetic controlled multi-way valve structure;

[0012] In the figure, 1, two-position two-way solenoid valve one, 2, first hydraulic oil circuit, 3, second hydraulic oil circuit, 4, three-position four-way solenoid valve, 5, third hydraulic oil circuit, 6, fourth hydraulic oil circuit, 7, hydraulically controlled one-way valve, 8, two-position two-way solenoid valve two, 9, overflow valve, 10, hydraulic source, 11, return oil tank. DETAILED DESCRIPTION

[0013] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0014] like Figure 1 As shown, a two-position two-way solenoid valve 1, a first hydraulic oil circuit 2, a second hydraulic oil circuit 3, a three-position four-way solenoid valve 4, a third hydraulic oil circuit 5, a fourth hydraulic oil circuit 6, a hydraulically controlled one-way valve 7, a two-position two-way solenoid valve 2 8, a relief valve 9, a hydraulic source 10, and an oil return tank 11;

[0015] A multifunctional electromagnetically controlled multi-way valve structure includes multiple working systems, which are controlled by a first hydraulic control system or a second hydraulic control system. The first hydraulic control system includes a first hydraulic oil circuit 2 and a second hydraulic oil circuit 3. The first hydraulic oil circuit 2 and the second hydraulic oil circuit 3 are respectively connected to an inner cavity of a cylinder, and the first hydraulic oil circuit 2 and the second hydraulic oil circuit 3 are both connected to the working oil port of a three-dimensional four-way solenoid valve. The three-position four-way solenoid valve 4 is respectively connected to a hydraulic source 10 and an oil return tank 11, and a one-way valve is respectively provided on the first oil circuit and the second oil circuit.

[0016] In this embodiment, the one-way valve is a hydraulically controlled one-way valve 7 .

[0017] In this embodiment, the second hydraulic control system includes a third hydraulic oil circuit 5 and a fourth hydraulic oil circuit 6, the third hydraulic oil circuit 5 and the fourth hydraulic oil circuit 6 are respectively connected to an inner cavity of the cylinder, and the third hydraulic oil circuit 5 and the fourth hydraulic oil circuit 6 are both connected to the working port of the three-position four-way solenoid valve 4, the three-position four-way solenoid valve 4 is respectively connected to the hydraulic source 10 and the return oil tank 11, and a two-position two-way solenoid valve 1 is respectively provided on the third oil circuit and the fourth oil circuit, and one station of the two-position two-way solenoid valve 1 has a one-way cut-off function, and its outlet is connected to the inner cavity of the cylinder.

[0018] In this embodiment, a two-position two-way solenoid valve 2 8 is provided at the hydraulic source 10 , and the two-position two-way solenoid valve 2 8 includes a normally open position and a normally closed position.

[0019] In this embodiment, a relief valve 9 is provided between the hydraulic source 10 and the oil return tank 11 .

[0020] Specifically, the multi-way valve can connect the slice valves in series according to the actual working requirements to meet the working conditions. The oil inlet and return are equipped with pressure regulators and main control switches. A single slice valve can add two two-position two-way solenoid valves to meet the floating position requirements. The oil enters the valve body, passes through the three-position four-way solenoid reversing valve and the hydraulic lock, and completes the working cylinder action of the single slice valve.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional electromagnetic controlled multi-way valve structure, characterized in that: It includes multiple working systems, and the working systems are controlled by a first hydraulic control system or a second hydraulic control system. The first hydraulic control system includes a first hydraulic oil circuit and a second hydraulic oil circuit. The first hydraulic oil circuit and the second hydraulic oil circuit are respectively connected to an inner cavity of the oil cylinder, and the first hydraulic oil circuit and the second hydraulic oil circuit are both connected to the working oil port of a three-position four-way solenoid valve. The three-position four-way solenoid valve is respectively connected to a hydraulic source and a return oil tank, and a one-way valve is respectively provided on the first hydraulic oil circuit and the second hydraulic oil circuit.

2. A multifunctional electromagnetic controlled multi-way valve structure according to claim 1, characterized in that: The one-way valve is a hydraulically controlled one-way valve.

3. A multifunctional electromagnetic controlled multi-way valve structure according to claim 1, characterized in that: The second hydraulic control system includes a third hydraulic oil circuit and a fourth hydraulic oil circuit, the third hydraulic oil circuit and the fourth hydraulic oil circuit are respectively connected to an inner cavity of the oil cylinder, and the third hydraulic oil circuit and the fourth hydraulic oil circuit are both connected to the working port of the three-position four-way solenoid valve. The third hydraulic oil circuit and the fourth hydraulic oil circuit are respectively provided with a two-position two-way solenoid valve 1, and one station of the two-position two-way solenoid valve 1 has a one-way cut-off function, and its outlet is connected to the inner cavity of the oil cylinder.

4. A multifunctional electromagnetic controlled multi-way valve structure according to claim 1, characterized in that: A two-position two-way solenoid valve 2 is provided at the hydraulic source, and the two-position two-way solenoid valve 2 includes a normally open position and a normally closed position.

5. The multifunctional electromagnetic controlled multi-way valve structure according to claim 1, characterized in that: An overflow valve is arranged between the hydraulic source and the oil return tank.

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