Oil delivery pump performance test bench

Abstract

The utility model belongs to a performance detection test device of a hydraulic element in the mechanical industry, and particularly relates to an oil delivery pump performance test bed, which is characterized in that a transverse partition plate is fixed at the middle lower part in a test bed frame, and a main panel is fixed in the test bed frame above the transverse partition plate; a starting button composed of a motor driving button and an equipment scram button is arranged at the lower left corner of the main panel, an oil inlet pressure transmission device is installed on the transmission clamping device, an upper box body vertical partition plate is fixed to the position, above the transverse partition plate, behind the main panel, a frequency converter is fixed to the upper end of the right side of the upper box body vertical partition plate, and an oil outlet pressure sensor is installed on a reversing valve. A pneumatic ball valve is arranged at an outlet, perpendicular to the first filter, below the oil suction box, a lower box body vertical partition plate is arranged in the middle in the lower box body, and a safety valve is installed in front of a bottom plate in the lower box body. An automatic test process can be realized, flow change conditions of the oil delivery pump under different revolutions, different oil suction pressures and different oil outlet pressures can be accurately detected, and the flow change conditions are displayed in an equipment software interface through data processing.

Description

Technical Field

[0001] This utility model relates to a performance testing device for hydraulic components in the machinery industry, and in particular to a performance testing bench for an oil pump. Background Technology

[0002] The fuel pump in a diesel engine ensures a sufficient quantity of hydraulic oil is delivered from the fuel tank to the fuel injection pump, maintaining a certain supply pressure to overcome the resistance of the pipeline and fuel filter, allowing the oil to circulate in the low-pressure pipeline. Its performance directly affects the stability and reliability of the entire system. A fuel pump performance test bench is a crucial piece of equipment necessary for testing and adjusting the fuel pump. Traditional fuel pump performance testing relies solely on manually adjusting the inlet valve opening to control the suction pressure. This method lacks accuracy in measuring suction pressure, outlet pressure, and flow rate at different speeds. Furthermore, the measurement and pump clamping speeds are slow, making it difficult to meet the demands of modern production speeds and high-quality product requirements. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the above-mentioned technology and provide an oil pump performance test bench that is simple in structure, easy and flexible to operate, and reliable in performance.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows: an oil pump performance test bench includes a test bench frame, an upper chamber, a lower chamber, a transverse partition, a main panel, a vertical partition of the upper chamber, a vertical partition of the lower chamber, an inner frame, and feet. Its characteristic is that a transverse partition is fixed in the lower middle part of the test bench frame, forming the upper chamber above the transverse partition and the lower chamber below the transverse partition. The main panel is fixed inside the test bench frame above the transverse partition. A start button consisting of a motor drive button and an emergency stop button is provided on the lower left corner of the main panel. A host computer is installed on the test bench frame above the start button. An oil suction pressure gauge and an oil discharge pressure gauge are respectively installed on the main panel. A clamping button is provided on the main panel at the right end of the test bench frame. The clamping button controls a transmission clamping device, which is equipped with an oil inlet pressure sensor. The vertical partition of the upper chamber is fixed behind the main panel above the transverse partition. A frequency converter is fixed at the upper right end of the vertical partition of the upper chamber. The test bench frame to the right of the frequency converter... The system is equipped with an industrial control configuration box. A reversing valve is installed on the horizontal partition on the left side of the industrial control configuration box. The outlet of the reversing valve is connected to filter four. An oil pressure sensor is installed on the reversing valve. A hydraulic loading valve is installed in front of the reversing valve. A flow meter is installed at the outlet of the hydraulic loading valve. An inner frame is fixed above the horizontal partition and on the rear side of the upper box. An oil suction box is fixed above the inner frame. Filter one is connected to the lower inlet of the oil suction box. A pneumatic ball valve is installed at the outlet of the oil suction box, which is perpendicular to filter one. A lower box vertical partition is installed in the middle of the lower box. Filter two and filter three are fixed below the horizontal partition on the left side of the lower box vertical partition. Filter four and filter five are fixed below the horizontal partition on the right side of the lower box vertical partition. Two couplings are fixed on the right side wall of the lower box. An oil receiving tank is installed on the bottom plate of the lower box. A circulation pump is installed on the bottom plate of the lower box at the outlet of the oil receiving tank. Filter two is installed at the outlet of the circulation pump. A safety valve is installed in front of the bottom plate of the lower box. The inlet of the safety valve is connected to filter five.

[0005] The beneficial effects of this utility model are as follows: The oil pump performance test bench can realize the automatic testing process, accurately detect the flow rate changes of the oil pump at different speeds, different suction pressures, and different discharge pressures, and display the data on the equipment software interface. The test data is accurate and reliable, ensuring sufficient flow and pressure of oil supply to the injection pump. The entire test clamping method adopts pneumatic clamping, which is fast, has stable clamping force, and is easy to operate, greatly reducing the labor intensity of the operator and improving the testing efficiency. Attached Figure Description

[0006] The following description, in conjunction with the accompanying drawings, illustrates specific embodiments.

[0007] Figure 1 This is a structural diagram of the oil pump performance test bench.

[0008] Figure 2 yes Figure 1 The internal structure is shown on the right side.

[0009] Figure 3 yes Figure 1 Rear view of the internal structure.

[0010] Figure 4 yes Figure 1 Structure diagram of the central transmission fixture.

[0011] Figure 5 This is the hydraulic schematic diagram of the oil pump performance test bench.

[0012] In the diagram: 1 - Test bench frame; 1-1 - Upper chamber; 1-1-1 - Upper chamber vertical partition; 1-2 - Lower chamber; 1-2-1 - Lower chamber vertical partition; 1-3 - Horizontal partition; 2 - Start button; 3 - Host computer; 4 - Clamping button; 5 - Frequency converter; 6 - Oil suction tank; 7 - Pneumatic ball valve; 8 - Filter 1; 9 - Inlet pressure sensor; 9-1 - Suction pressure gauge; 10 - Transmission clamping device; 10-1 - Transmission motor; 10-2 - Inlet / outlet clamping device; 10-3 - Pump clamping device; 11 - Reversing valve; 12 - Oil outlet pressure sensor; 12-1 - Oil outlet pressure gauge; 13 - Hydraulic loading valve; 14 - Oil receiving tank; 15 - Circulating pump; 16 - Flow meter; 17 - Safety valve; 18 - Filter II; 19 - Double unit; 20 - Filter IV; 21 - Industrial control configuration box; 22 - Main panel; 23 - Lower housing door; 24 - Foot; 25 - Filter V; 26 - Filter III; 27 - Oil pump; 28 - Inner frame. Detailed Implementation

[0013] Example, see attached document Figures 1-4The oil pump performance test bench consists of a square frame 1 with a horizontal partition 1-3 fixed in the lower middle part. An upper chamber 1-1 is formed above the partition 1-3, and a lower chamber 1-2 is formed below it. A vertical main panel 22 is fixed inside the test bench frame 1 above the partition 1-3. A vertically parallel upper chamber partition 1-1-1 is located behind the main panel 22. An oil suction pressure gauge 9-1 and an oil discharge pressure gauge 12-1 are mounted on the main panel 22. A start button 2, consisting of a motor drive button and an emergency stop button, is located at the lower left corner of the main panel 22. A host computer 3 is mounted on the test bench frame 1 above the start button 2. A clamping button 4 is located on the main panel 22 at the right end of the test bench frame 1. Clamping button 4 controls the transmission clamping device 10. The transmission clamping device 10 is driven by a transmission motor 10-1 and connected to an inlet / outlet clamping device 10-2. The inlet / outlet clamping device 10-2 is connected to a pump clamping device 10-3. An inlet pressure sensor 9 is installed on the transmission clamping device 10. A frequency converter 5 is fixed on the upper right side of the vertical partition 1-1-1 of the upper housing. An industrial control configuration box 21 is installed on the test bench frame 1 to the right of the frequency converter 5. A reversing valve 11 is installed on the horizontal partition 1-3 to the left of the industrial control configuration box 21. The outlet of the reversing valve 11 is connected to a filter 4 20. An outlet pressure sensor 12 is installed on the reversing valve 11. A hydraulic loading valve 13 is installed in front of the reversing valve 11. A flow meter 16 is installed at the outlet of the hydraulic loading valve 13. An inner frame 28 is fixed above the transverse partition 1-3 and behind the upper housing 1-1. An oil suction tank 6 is fixed above the inner frame 28. Filter 1 8 is connected to the lower inlet of the oil suction tank 6. A pneumatic ball valve 7 is installed at the outlet of the oil suction tank 6, perpendicular to the outlet of filter 1 8. A lower housing vertical partition 1-2-1 is installed in the middle of the lower housing 1-2. Filter 4 20 and Filter 5 25 are fixed below the transverse partition 1-3 on the right side of the lower housing vertical partition 1-2-1. The inlet of filter 4 20 is connected to the outlet of the reversing valve 11, and the outlet of filter 4 20 is connected to the inlet of filter 5 25. The outlet of filter 5 25 is connected to the safety valve 17. Filter 2 18 and Filter 3 26 are fixed below the transverse partition 1-3 on the left side of the lower housing vertical partition 1-2-1. Filter 2 18 and Filter 3 26 are connected to filter 1 8. Two connecting pieces 19 are fixed to the right side wall of the lower chamber 1-2. An oil tank 14 is installed on the bottom plate of the lower chamber 1-2. A circulation pump 15 is installed on the bottom plate of the lower chamber 1-2 at the outlet of the oil tank 14. A safety valve 17 is installed in front of the bottom plate inside the lower chamber 1-2. The inlet of the safety valve 17 is connected to a filter 25. A double-opening lower chamber door 23 is provided on the test bench frame 1 of the lower chamber 1-2. Footings 24 are installed at the four corners of the bottom of the test bench frame 1. (See attached diagram) Figure 5In the hydraulic schematic diagram of the oil pump performance testing device, the suction tank 6 is connected to a pneumatic ball valve 7 via a hydraulic pipeline. The pneumatic ball valve 7 controls the flow rate of the suction pipeline. The outlet of the pneumatic ball valve 7 is connected to the inlet of the oil pump 27 via a hydraulic pipeline, which is connected to the suction pressure gauge 9-1 and the inlet pressure sensor 9. The hydraulic pipeline at the outlet of the oil pump 27 is connected to the outlet pressure gauge 12-1, the outlet pressure sensor 12, and the reversing valve 11. The reversing valve 11 divides the oil circuit into two parts. One outlet is connected to filter 4 20, filter 5 25, and safety valve 17. When the system pressure exceeds the set pressure, the safety valve 17 automatically opens and the oil returns to the receiving tank 14. The other outlet of the reversing valve 11 is connected to the hydraulic loading valve 13. The hydraulic loading valve 13 can be adjusted to different set pressures. The outlet of the hydraulic loading valve 13 returns to the receiving tank 14 via the flow meter 16. The outlet of the oil tank 14 is connected to the circulation pump 15 through a hydraulic pipeline. The outlet of the circulation pump 15 is connected to the filter 26 and the filter 18 through a hydraulic pipeline. The oil flowing out of the filter 8 returns to the suction tank 6 through the hydraulic pipeline.

[0014] The working principle of this utility model is as follows: When the oil pump performance test bench is working, first start the equipment, the linear power supply powers the oil pump test bench, install the pump on the transmission clamping device 10, press the clamping button 4, and the equipment automatically clamps the pump and automatically connects the inlet and outlet hydraulic lines. The data acquisition module in the industrial control configuration box 21 collects data from the flow meter 16 and the inlet pressure sensor 9, the frequency converter 5 controls the transmission speed, the data is processed by the measurement and control software in the industrial control configuration box 21, and the processed data is input to the display of the industrial control configuration box 21. Oil in suction tank 6 enters oil pump 27 via hydraulic lines through pneumatic ball valve 7 and inlet pressure sensor 9. Oil circulated from oil pump 27 flows back to receiving tank 14 via hydraulic lines through outlet pressure sensor 12, directional valve 11, hydraulic loading valve 13, and flow meter 16. The outlet of receiving tank 14 is connected to circulation pump 15 via hydraulic lines. The outlet of circulation pump 15 is connected to filter 3 26, filter 2 18, and filter 1 8 via hydraulic lines. Oil flowing out of the filters returns to suction tank 6 via hydraulic lines. At the other end of directional valve 11, safety valve 17 is connected to filter 4 20 and filter 5 25. When the set pressure exceeds the system pressure, safety valve 17 opens, and oil returns to receiving tank 14.

Claims

1. A test bench for the performance of an oil pump, comprising a test bench frame (1), an upper housing (1-1), a lower housing (1-2), a horizontal partition (1-3), a main panel (22), a vertical partition of the upper housing (1-1-1), a vertical partition of the lower housing (1-2-1), an inner frame (28), and feet (24), characterized in that, A horizontal partition (1-3) is fixed in the lower middle part of the test bench frame (1). An upper box (1-1) is formed above the horizontal partition (1-3), and a lower box (1-2) is formed below the horizontal partition (1-3). A main panel (22) is fixed in the test bench frame (1) above the horizontal partition (1-3). A start button (2) consisting of a motor drive button and an equipment emergency stop button is provided on the lower left corner of the main panel (22). A host computer (3) is installed on the test bench frame (1) above the start button (2). An oil suction pressure gauge (9-1) and an oil discharge pressure gauge (12-1) are installed on the main panel (22). On the right side of the test bench frame (1)... A clamping button (4) is provided on the main panel (22) at the location. The clamping button (4) controls the transmission clamping device (10). The transmission clamping device (10) is equipped with an oil inlet pressure sensor (9). The upper box vertical partition (1-1-1) is fixed behind the main panel (22) above the horizontal partition (1-3). The inverter (5) is fixed on the upper right side of the upper box vertical partition (1-1-1). The industrial control configuration box (21) is installed on the test bench frame (1) to the right of the inverter (5). The reversing valve (11) is installed on the horizontal partition (1-3) to the left of the industrial control configuration box (21). The outlet of the reversing valve (11) is connected to filter four (20). 11) An oil pressure sensor (12) is installed on the top. A hydraulic loading valve (13) is installed in front of the reversing valve (11). A flow meter (16) is installed at the outlet of the hydraulic loading valve (13). An inner frame (28) is fixed above the transverse partition (1-3) and behind the upper box (1-1). An oil suction box (6) is fixed above the inner frame (28). A filter (8) is connected to the lower inlet of the oil suction box (6). A pneumatic ball valve (7) is installed at the outlet of the oil suction box (6) perpendicular to the filter (8). A lower box vertical partition (1-2-1) is installed in the middle of the lower box (1-2). A transverse partition is installed on the left side of the lower box vertical partition (1-2-1). Filter 2 (18) and Filter 3 (26) are fixed below the plate (1-3). Filter 4 (20) and Filter 5 (25) are fixed below the horizontal partition (1-3) on the right side of the vertical partition (1-2-1) of the lower box. Two couplings (19) are fixed on the right side wall of the lower box (1-2). An oil receiving tank (14) is installed on the bottom plate of the lower box (1-2). A circulation pump (15) is installed on the bottom plate of the lower box at the outlet of the oil receiving tank (14). Filter 2 (18) is installed at the outlet of the circulation pump (15). A safety valve (17) is installed in front of the bottom plate inside the lower box (1-2). Filter 5 (25) is connected to the inlet of the safety valve (17).

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