A hydraulic steering pump safety valve performance test device

Abstract

The utility model relates to the field of safety valve test, disclose a kind of hydraulic steering pump safety valve performance test equipment, it includes workbench, workbench is provided with test valve seat, the top of test valve seat is provided with test rack;The bottom of test valve seat is provided with oil inlet and oil outlet;Test rack includes pressure component, pressure component is used to fix the valve to be measured installation on valve seat;It further includes valve sleeve, the middle part of test valve seat is provided with first channel, valve sleeve is inserted in first channel, the lateral wall of valve sleeve is provided with first oil outlet hole, test valve seat inside is provided with oil outlet channel, oil outlet channel is communicated with oil outlet, oil inlet is communicated with the oil passage channel of the middle part of valve sleeve setting. The test equipment has the advantages of high working efficiency, stable detection, can match different products etc.

Claims

1. A performance testing device for a hydraulic steering pump safety valve, characterized in that: Includes a workbench (1), on which a test valve seat (2) is provided, and above the test valve seat (2) a test frame is provided; The bottom of the test valve seat (2) is provided with an oil inlet (4) and an oil outlet; the test bench includes a pressure assembly (6), which is used to fix the valve to be tested onto the valve seat; It also includes a valve sleeve (7), a first channel (8) is provided in the middle of the test valve seat (2), the valve sleeve (7) is inserted into the first channel (8), the side wall of the valve sleeve (7) is provided with a first oil outlet hole (9), the inside of the test valve seat (2) is provided with an oil outlet channel (10), the oil outlet channel (10) is connected to the oil outlet, and the oil inlet (4) is connected to the oil passage channel (30) provided in the middle of the valve sleeve (7).

2. The hydraulic steering pump safety valve performance testing equipment according to claim 1, characterized in that: The side wall of the test valve seat (2) is provided with a second channel (11), which is connected to the first channel (8). The second channel (11) is connected to the first channel (8) through the first oil outlet (9).

3. The hydraulic steering pump safety valve performance testing equipment according to claim 2, characterized in that: The inner wall of the first channel (8) is provided with an annular oil groove (12), a first sealing ring (13) is provided above the oil groove (12), and a second sealing ring (14) is provided below the oil groove (12). The inner rings of the first sealing ring (13) and the second sealing ring (14) are sealed and fitted with the outer wall of the valve sleeve (7); the inner port of the second channel (11) is located on the side wall of the oil groove (12).

4. The hydraulic steering pump safety valve performance testing equipment according to claim 3, characterized in that: The inner wall of the first channel (8) is provided with a first sealing groove for installing a first sealing ring (13) and a second sealing groove for installing a second sealing ring (14). The first sealing groove is located above the first oil outlet (9), and the second sealing ring (14) is located below the first oil outlet (9).

5. The hydraulic steering pump safety valve performance testing equipment according to claim 2, characterized in that: A sealing plug (15) is installed at the outer port of the oil tank (12).

6. The hydraulic steering pump safety valve performance testing equipment according to claim 2, characterized in that: The number of first oil outlet holes (9) is 4 and they are evenly distributed along the circumferential direction of the outer side of the valve sleeve (7).

7. The hydraulic steering pump safety valve performance testing equipment according to claim 1, characterized in that: An oil baffle ring (16) is provided on the test valve seat (2).

8. The hydraulic steering pump safety valve performance testing equipment according to claim 1, characterized in that: The pressure assembly (6) includes a pressure cylinder (17) fixed on the upper end of the test bench and a pressure plate (19). The test bench includes a guide shaft (18). The two ends of the pressure plate (19) are slidably engaged with the guide shaft (18) through linear bearings (22). A pressure head (20) is provided in the middle of the pressure plate (19). The piston end of the pressure cylinder is fixed to the pressure plate through a connector.

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