An experimental device for reliability verification of the main control valve group of an anchor and winch device

Abstract

The present invention relates to a test device for verifying the reliability of the main control valve group of an anchor winch device, which includes a one-way valve, a valve block, an electro-hydraulic proportional relief valve, pipelines, an electromagnetic directional control valve, an electro-hydraulic proportional reducing valve, an operation console and an electric control box. The one-way valve and the electro-hydraulic proportional relief valve are fixed on the valve block by screws, the valve block is fixed on the operation console by screws, the electromagnetic directional control valve and the electro-hydraulic proportional reducing valve are fixed on the valve block by screws, the valve block is fixed on the operation console by screws, the pipelines are installed between the components, and the electric control box is fixed on the side of the operation console by screws. All components are installed on the operation console, with high integration, compact structure and convenient movement. This device can verify the reliability of the main control valve group of the anchor winch device, and has certain guiding significance for the improvement of its products and the enhancement of its performance.

Description

Technical Field

[0001] The present invention belongs to the technical field of reliability verification tests for valve groups, and particularly relates to a test device for reliability verification of the main control valve group of an anchor and cable device. Background Art

[0002] As a control unit in the hydraulic system of an anchor and cable device, the main control valve group of the anchor and cable device controls the operations of anchoring, casting anchor, retrieving and paying out cables of the anchor and cable device, can also achieve high-speed cable retrieving and paying out, and has a constant tension mooring function at the same time. Therefore, the main control valve group plays a very important role in the anchor and cable device. If the main control valve group fails, the entire anchor and cable device will not be usable. Its reliability affects the failure rate of the entire anchor and cable device. Therefore, the reliability verification test of the main control valve group is extremely crucial.

[0003] At present, the reliability of the main control valve group is basically verified after being installed on a ship and used for a certain period of time in actual operation. This verification method requires the cooperation of users and professional personnel to board the ship for testing, which is not only inconvenient but also time-consuming. Summary of the Invention

[0004] The purpose of the present invention is to provide a test device for reliability verification of the main control valve group of an anchor and cable device. This device uses electrical program control for the test process, is simple to operate, has a high degree of automation, and greatly reduces the labor burden. This device has the advantages of compact structure, high integration, and simple operation.

[0005] To achieve the above purpose, a test device for reliability verification of the main control valve group of an anchor and cable device is provided, including an operation console and a first check valve, a second check valve, a first valve block, an electro-hydraulic proportional relief valve, a pipeline, an electromagnetic directional valve, an electro-hydraulic proportional reducing valve, a second valve block, and an electric control box placed on the operation console;

[0006] The outlets of the first check valve and the second check valve are connected to the inlet of the electro-hydraulic proportional relief valve; the oil return port of the electro-hydraulic proportional relief valve is connected to the oil return port of the valve group under test, and the A and B ports of the electromagnetic directional valve are connected to the hydraulic control ports of the valve group under test; the outlet of the electro-hydraulic proportional reducing valve is connected to the P port of the electromagnetic directional valve; the inlet of the electro-hydraulic proportional reducing valve is connected to the P port of the valve group under test. The internal channels of the first valve block connect the first check valve, the second check valve, and the electro-hydraulic proportional relief valve, and the external oil ports of the first valve block are connected to the A / B ports and the oil return port of the valve group under test through pipelines; the internal channels of the second valve block connect the electromagnetic directional valve and the electro-hydraulic proportional reducing valve, and the external oil ports of the second valve block are connected to the pilot ports and the oil return port of the valve group under test through pipelines; the electric control box is connected to the electromagnetic directional valve, the electro-hydraulic proportional reducing valve, and the electro-hydraulic proportional relief valve through cables.

[0007] A test device for verifying the reliability of the main control valve group of an anchor and winch device, including check valves, check valves, valve blocks, electro-hydraulic proportional relief valves, pipelines, solenoid directional control valves, electro-hydraulic proportional reducing valves, valve blocks, operation consoles, and electric control boxes. The check valves, check valves, and electro-hydraulic proportional relief valves are fixed on the valve block by screws. The valve block is fixed on the operation console by screws. The solenoid directional control valve and electro-hydraulic proportional reducing valve are fixed on the valve block by screws. The valve block is fixed on the operation console by screws. The pipelines are installed between the components. The electric control box is fixed on the side of the operation console by screws.

[0008] The preferred solution of the present invention is that the outlets of the check valves and the check valves are connected to the inlet of the electro-hydraulic proportional relief valve.

[0009] Preferably, the first check valve, the second check valve, and the electro-hydraulic proportional relief valve are fixed on the first valve block by screws. The first valve block is fixed on the operation console by screws. The solenoid directional control valve and the electro-hydraulic proportional reducing valve are fixed on the second valve block by screws. The second valve block is fixed on the operation console by screws. The pipelines are installed between the components. The electric control box is fixed on the side of the operation console by screws.

[0010] Preferably, the electro-hydraulic proportional relief valve (4) can be controlled by the electric control box (10) to linearly increase or decrease the pressure setting from 0 to 315 bar, so as to simulate the use of the main control valve group under different winch load conditions.

[0011] Preferably, the solenoid directional control valve can be controlled by the electric control box to perform the commutation action of the commutation valve of the valve group to be tested. At the same time, the electric control box controls the output pressure of the electro-hydraulic proportional reducing valve to linearly change from 0 to 30 bar, and then realizes the switching of the handle angle of the commutation valve of the valve group to be tested from 0 to the maximum, completing the linear output of the valve group flow rate.

[0012] Preferably, an electrical control program is set inside the electric control box to automatically control the commutation of the solenoid directional control valve and the linear change of the output pressure of the electro-hydraulic proportional reducing valve, realize the cyclic switching of the proportional commutation valve of the valve group to be tested, and intelligently record the number of working times.

[0013] Preferably, the oil return port of the electro-hydraulic proportional relief valve is connected to the oil return port of the valve group to be tested.

[0014] Preferably, the A and B ports of the solenoid directional control valve are connected to the hydraulic control ports of the valve group to be tested.

[0015] Preferably, the outlet of the electro-hydraulic proportional reducing valve is connected to the P port of the solenoid directional control valve.

[0016] Preferably, the inlet of the electro-hydraulic proportional reducing valve is connected to the P port of the valve group to be tested.

[0017] The beneficial effects of the present invention are as follows: The device has a compact structure, high degree of automation, and simple operation. It can control the electromagnetic directional valve to change direction through an electrical program. The control oil output by the electromagnetic directional valve reaches the two hydraulic control ports of the main valve, thereby controlling the main valve to change direction to achieve the lifting and lowering actions. The control oil pressure of this electromagnetic directional valve is set by an electro-hydraulic proportional pressure reducing valve. The electrical program controls the output pressure of the electro-hydraulic proportional pressure reducing valve to linearly vary between 0 and 30 bar. The stroke of the main valve is proportional to the pressure output by the electro-hydraulic proportional pressure reducing valve. Therefore, the flow rate of the main valve also linearly increases or decreases accordingly. There is a proximity switch respectively set at three positions of ±30° and 0° of the main valve hand-operating lever on the device to sense the handle position, and the electrical switching signal of the electromagnetic directional valve is controlled by using the sensing signal of the proximity switch. Through electrical program settings, the main valve can be automatically controlled to change direction thousands of times. The set pressure of the electro-hydraulic proportional relief valve in this device can linearly increase or decrease between 0 and 315 bar to simulate the use of the main control valve group under different winch load conditions, thereby verifying the reliability of the main control valve group. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 is the hydraulic schematic diagram of the present invention.

[0020] Figure 2 is the structural external view of the present invention. DETAILED DESCRIPTION OF THE INVENTION Embodiment

[0021] Please refer to Figure 1 and Figure 2 , a test device for verifying the reliability of the main control valve group of an anchor winch device, including check valve 1, check valve 2, valve block 3, electro-hydraulic proportional relief valve 4, pipeline 5, electromagnetic directional valve 6, electro-hydraulic proportional pressure reducing valve 7, valve block 8, operation console 9, and electric control box 10. Check valve 1, check valve 2, and electro-hydraulic proportional relief valve 4 are fixed on valve block 3 by screws. Valve block 3 is fixed on operation console 9 by screws. Electromagnetic directional valve 6 and electro-hydraulic proportional pressure reducing valve 7 are fixed on valve block 8 by screws. Valve block 8 is fixed on operation console 9 by screws. Pipeline 5 is installed between each component. Electric control box 10 is fixed on the side of operation console 9 by screws.

[0022] The outlets of check valve 1 and check valve 2 are connected to the inlet of electro-hydraulic proportional relief valve 4.

[0023] The oil return port of electro-hydraulic proportional relief valve 4 is connected to the oil return port of the valve group under test.

[0024] The A and B ports of electromagnetic directional valve 6 are connected to the hydraulic control ports of the valve group under test.

[0025] The outlet of electro-hydraulic proportional pressure reducing valve 7 is connected to the P port of electromagnetic directional valve 6.

[0026] The inlet of the electro-proportional pressure reducing valve 7 is connected to the P port of the valve group under test.

[0027] The operator installs the valve group under test at the designated position on this test equipment and connects the pipeline to the hydraulic pump station. Start the hydraulic pump station, rotate the electric control knob of the electro-proportional relief valve 4, set the pressure to 20 MPa, press the automatic operation button of the electric control box 9, the electric program automatically controls the main valve to change direction, complete 2000 times, and then automatically stop. During the test process, the electric program automatically controls the pressure of the electro-proportional pressure reducing valve 7 to linearly change between 0 and 30 bar. The stroke of the main valve is proportional to the pressure output by the electro-proportional pressure reducing valve 7, so the flow rate of the main valve also linearly increases or decreases accordingly. According to the test data, it can be judged whether the reliability of the main control valve group meets the reliability index.

[0028] The device of this embodiment has a compact structure, high degree of automation, and simple operation. It can automatically control the test process through an electric program, and at the same time simulate the usage of the main control valve group under different winch load conditions, so as to verify the reliability of the main control valve group.

[0029] In addition to the above embodiments, the present invention may have other implementation manners. All technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present invention.

Claims

1. An experimental device for verifying the reliability of the main control valve group of an anchor winch device, characterized in that, It includes an operating platform (9), a first one-way valve (1), a second one-way valve (2), a first valve block (3), an electro-hydraulic proportional relief valve (4), a pipeline (5), an electromagnetic directional control valve (6), an electro-hydraulic proportional reducing valve (7), a second valve block (8), and an electric control box (10) placed on the operating platform; the outlets of the first one-way valve (1) and the second one-way valve (2) are connected to the inlet of the electro-hydraulic proportional relief valve (4); the oil return port of the electro-hydraulic proportional relief valve (4) is connected to the oil return port of the valve group under test, and the A and B ports of the electromagnetic directional control valve (6) are connected to the hydraulic control ports of the valve group under test; the outlet of the electro-hydraulic proportional reducing valve (7) is connected to the P port of the electromagnetic directional control valve (6); the inlet of the electro-hydraulic proportional reducing valve (7) is connected to the P port of the valve group under test; the internal channel of the first valve block (3) connects the first one-way valve (1), the second one-way valve (2), and the electro-hydraulic proportional relief valve (4), and the external oil ports of the first valve block (3) are connected to the A / B ports and the oil return port of the valve group under test through pipelines; the internal channel of the second valve block (8) connects the electromagnetic directional control valve (6) and the electro-hydraulic proportional reducing valve (7), and the external oil ports of the second valve block (8) are connected to the pilot port and the oil return port of the valve group under test through pipelines; the electric control box (10) is connected to the electromagnetic directional control valve (6), the electro-hydraulic proportional reducing valve (7), and the electro-hydraulic proportional relief valve (4) through cables.

2. The experimental device for verifying the reliability of the main control valve group of an anchor winch device according to claim 1, characterized in that, The first one-way valve (1), the second one-way valve (2), and the electro-hydraulic proportional relief valve (4) are fixed on the first valve block (3) by screws, the first valve block (3) is fixed on the operating platform (9) by screws, the electromagnetic directional control valve (6) and the electro-hydraulic proportional reducing valve (7) are fixed on the second valve block (8) by screws, the second valve block (8) is fixed on the operating platform (9) by screws, the pipeline (5) is installed between the components, and the electric control box (10) is fixed on the side of the operating platform (9) by screws.

3. The experimental device for verifying the reliability of the main control valve group of an anchor winch device according to claim 1, characterized in that, The electro-hydraulic proportional relief valve (4) can achieve a linear increase or decrease in pressure setting from 0 to 315 bar through the control of the electric control box (10), so as to simulate the use of the main control valve group under different winch load conditions.

4. The experimental device for verifying the reliability of the main control valve group of an anchor winch device according to claim 1, characterized in that, The electromagnetic directional control valve (6) can achieve the commutation action of the directional control valve of the valve group under test through the control of the electric control box (10); at the same time, the electric control box (10) controls the output pressure of the electro-hydraulic proportional reducing valve (7) to linearly change from 0 to 30 bar, thereby realizing the switching of the handle angle of the directional control valve of the valve group under test from 0 to the maximum, and completing the linear output of the flow rate of the valve group under test.

5. The experimental device for verifying the reliability of the main control valve group of an anchor winch device according to claim 1, characterized in that, The electric control box (10) is internally provided with an electrical control program to automatically control the commutation of the electromagnetic directional control valve (6) and the linear change of the output pressure of the electro-hydraulic proportional reducing valve (7), realize the cyclic switching of the directional control valve of the valve group under test, and intelligently record the number of working times.

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