Bearing seat flow and pressure detection equipment

Abstract

The utility model relates to the technical field of fluid mechanics and detection, in particular to a flow and pressure detection device for a bearing seat, which comprises a test bed, an electric appliance control box, a flow and pressure detection unit, a clamping unit, an experiment mould, a plurality of universal bases, a water tank, a water pump and a detection pipeline. The top surface of the universal base is provided with experiment moulds, the top of the test bench at the position corresponding to each experiment mould is provided with a clamping unit, the clamping units and the experiment moulds clamp bearing seats, each bearing seat is correspondingly provided with a flow pressure detection unit, and the water tank is connected with the plurality of bearing seats through a water pump and a plurality of parallel detection pipelines. The beneficial effects of the utility model are that the bearing pedestal can be detected through one-time installation, the disassembly and assembly time is saved, and the manual workload is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fluid mechanics and testing technology, and in particular to a bearing housing flow and pressure testing device. Background Technology

[0002] The performance and flow rate of bearing housings under pressure conditions must meet technical requirements to ensure they comply with design standards and quality requirements. Used bearing housings need to be inspected and evaluated periodically to ensure their quality and performance are good and meet operational requirements. Traditional bearing housing testing platforms consist of two independent operating platforms: a flow rate testing platform and a pressure testing platform.

[0003] The bearing housing flow testing platform requires the bearing housing to be placed on the platform for testing. Two bolts are then manually used to attach the fixture to the bearing housing, tightened with a wrench, and the oil pipe is connected and tightened again. The bearing housing is not fixed during the test; it needs to be manually held down during flow testing. After the flow test, the oil pipe and fixture bolts are loosened with a wrench, and the fixture is then disassembled from the bearing housing. Each test takes 20 minutes. For bearing housing mounting, the two testing platforms are connected and mounted with bolts, requiring different mounting fixtures. Each bearing housing test requires two bolt mountings, two oil pipe connections, and two disassemblies. Manually installing the fixture and oil pipe takes 15 minutes. This results in a huge workload, low production efficiency, and is time-consuming and labor-intensive.

[0004] The bearing housing pressure testing platform has four testing stations. Each station's base fixture is welded to the testing platform. Only one type of bearing housing can be tested at a time. Before testing, the clamping bolts are rotated upwards to lift the bearing housing. Once in position, the bearing housing is placed on the fixture, and then the clamping bolts are rotated downwards to clamp and fix the bearing housing to the fixture. Water pipes are then connected, the water pump is started, and the inlet and outlet valves are manually opened (the outlet valve is located inside the equipment and inconvenient to operate). The bearing housing water channels are flushed, and the flushed water is discharged directly. After the air in the bearing housing water channels is purged, the pressurized outlet valve is manually closed, followed by the pressurized inlet valve. Each bearing housing pressure test takes 30 minutes. The four stations cannot be tested simultaneously; one bearing housing can only be tested after the previous one is completed. Continuous testing is not possible. Furthermore, the fixtures at the four stations are of inconsistent specifications, making it impossible to test the same specification simultaneously. This results in low production efficiency, wasted water resources, high manual workload, and significant time consumption during continuous testing. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a bearing housing flow and pressure testing device. Through an integrated bearing housing testing bench that can perform both flow and pressure testing, it automates bearing housing testing, aiming to solve the problems of reduced manual workload, lower production efficiency, shorter testing time, and water waste during the testing process. The testing bench allows for simultaneous flow and pressure testing, and can test bearing housings of the same or multiple specifications at the same time. Water circulation and filtration reduce water waste, and automation and mechanization improve testing efficiency, reduce operational difficulty and safety risks, achieving the goal of increasing efficiency and saving energy.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A bearing housing flow and pressure testing device includes a test bench, an electrical control box, a flow and pressure testing unit, a clamping unit, a test fixture, a universal base, a water tank, a water pump, and testing pipelines. The test bench has several universal bases on its surface, and a test fixture is mounted on the top surface of each universal base. A clamping unit is mounted on the top of the test bench at a corresponding position of each test fixture. The clamping unit and the test fixture clamp the bearing housing. Each bearing housing corresponds to one flow and pressure testing unit. A water tank is located at the bottom of the test bench. The water tank is connected to several bearing housings via a water pump and several parallel testing pipelines. Each testing pipeline is connected to one flow and pressure testing unit. An electrical control box is located on one side of the test bench. The electrical control box controls each flow and pressure detection unit. Each flow and pressure detection unit includes a flow meter, a pressure meter, a flow detection switch, a pressure detection switch, a check valve, a pneumatic ball valve, and a solenoid directional valve. The flow meter and pressure meter are connected in parallel on the pipeline before entering the bearing housing via the solenoid directional valve. Pneumatic ball valves are installed on the parallel pipeline before the flow meter and pressure meter to control their on / off states. A check valve is installed on the parallel pipeline after the flow meter. A pneumatic ball valve is installed on the return water detection pipeline from the bearing housing to the water tank to control its on / off state. The solenoid directional valve, flow detection switch, pressure detection switch, and pneumatic ball valve are connected to the electrical control box.

[0008] Furthermore, the clamping unit includes a manual switch, a clamping cylinder, and a clamping head. The manual switch is connected to the clamping cylinder, and the bottom of the clamping cylinder is connected to the clamping head. The clamping head clamps the bearing seat in the middle of the experimental fixture.

[0009] Furthermore, the electrical control box controls the switching of the electromagnetic reversing valve, and the on / off state and sequence of the pneumatic ball valve.

[0010] Furthermore, the universal base is equipped with an inlet and an outlet for the detection pipeline, and the inlet and outlet of the universal base are connected to the water tank.

[0011] Furthermore, the experimental fixture is equipped with a water inlet channel and a water return channel, one end of which is connected to the testing pipeline, and the other end is connected to the bearing seat water channel.

[0012] Furthermore, the pneumatic ball valve is made of stainless steel.

[0013] Furthermore, a filter cotton is installed before the water tank is connected to the detection pipeline to filter impurities.

[0014] Furthermore, the experimental fixture is connected to the universal base by bolts.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1) The bearing seat is clamped by a pneumatic clamping unit, eliminating the need for manual tightening and compaction. The clamping cylinder pushes the clamping head to press the bearing seat firmly onto the bearing seat, ensuring reliable fixation and tight compaction. The bearing seat is stably clamped onto the experimental fixture without the need for bolt clamping, reducing manual labor intensity and workload, and improving experimental installation time.

[0017] 2) A flow meter and a pressure gauge are connected in parallel to the test pipeline. The test water is selected to enter the bearing housing through the pipeline where the flow meter or pressure gauge is located by an electromagnetic reversing valve. This allows for flow and pressure testing to be performed separately on the same test pipeline. The flow and pressure testing do not interfere with each other. The test structure is simple and the test can be completed in one installation of the bearing housing, saving disassembly and assembly time and reducing manual workload.

[0018] 3) Multiple testing positions are set on one testing platform, which can test multiple bearing housings at the same time. The next bearing housing can be tested while the pressure holding stage of one bearing housing is being tested. There is no interference between the testing of two bearing housings. The testing accuracy is high and continuous testing of bearing housings can be realized, thus improving the testing efficiency.

[0019] 4) The electrical control box is designed with a control program to control the switching of the solenoid directional valve, realize the automatic switching between flow detection and pressure detection, and the electrical control box also controls the on / off and on / off sequence of the pneumatic ball valve on the detection pipeline to ensure the pressure detection function, improve the automation control of detection, improve control accuracy, and improve detection time.

[0020] 5) After the water in the water tank passes through the bearing seat flow and pressure detection, it flows back into the water tank. The water used for testing is recycled through the filter cotton, which saves water resources, avoids waste, and achieves the goal of increasing efficiency and saving energy.

[0021] 6) The universal base and experimental fixture are connected by bolts and can be freely disassembled to replace different experimental fixtures and test different types of bearing housings at the same time. Alternatively, the same experimental fixture can be used to test the same type of bearing housing at the same time. The testing is convenient, flexible and easy, with low technical requirements and improved testing efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a bearing housing flow and pressure detection device according to the present invention.

[0023] Figure 2 This is a side view of the structure of a bearing housing flow and pressure detection device according to the present invention.

[0024] Figure 3 This is a schematic diagram of the hydraulic principle of the bearing housing flow and pressure detection device described in this utility model.

[0025] Figure 4 This is a top view of the universal base structure described in this utility model.

[0026] Figure 5 This is a cross-sectional view of the universal base described in this utility model.

[0027] Figure 6 This is a top view of the experimental fixture structure described in this utility model.

[0028] Figure 7 This is a cross-sectional view of the experimental fixture structure described in this utility model.

[0029] In the diagram: 1. Flow meter; 2. Pressure gauge; 3. Manual switch; 4. Flow detection switch; 5. Pressure detection switch; 6. Clamping cylinder; 7. Clamping head; 8. Experimental fixture; 9. Universal base; 10. Water tank; 11. Filter cotton; 12. Water pump; 13. Electrical control box; 14. Flow pneumatic ball valve; 15. Pressure pneumatic ball valve; 16. Return pneumatic ball valve; 17. Solenoid directional valve; 18. Bearing housing; 19. Check valve; 20. Inlet; 21. Outlet; 22. Inlet channel; 23. Outlet channel; 24. Test bench. Detailed Implementation

[0030] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0031] like Figures 1-7As shown, a bearing housing flow and pressure testing device includes a test bench 24, an electrical control box 13, a flow and pressure testing unit, a clamping unit, a test fixture 8, a universal base 9, a water tank 10, a water pump 12, and testing pipelines. Several universal bases 9 are arranged on the test bench 24, and test fixtures 8 are arranged on the top surface of the universal bases 9. A clamping unit is arranged on the top of the test bench 24 at the corresponding position of each test fixture 8. The clamping unit and the test fixture 8 clamp the bearing housing 18. Each bearing housing 18 is correspondingly provided with a flow and pressure testing unit. The bottom of the test bench 24... The test bench 24 is equipped with a water tank 10, which is connected to several bearing seats 18 via a water pump 12 and several parallel detection pipelines. Each detection pipeline is connected to a flow and pressure detection unit. An electrical control box 13 is set on one side of the test bench 24, which controls each flow and pressure detection unit. The test bench 24 is equipped with multiple bearing seat 18 detection positions, which can simultaneously detect the flow and pressure of multiple bearing seats 18. The electrical control box 13 controls the flow and pressure detection of the bearing seats 18, realizing automated detection and reducing the workload of personnel.

[0032] like Figure 1-3As shown, the flow and pressure detection units are divided into several, each corresponding to the flow and pressure detection of a bearing housing 18. These units are connected in parallel to their respective detection pipelines. The flow and pressure detection units are further divided into flow detection units and pressure detection units, which are connected in parallel to the detection pipelines. The flow detection unit includes a flow meter 1, a flow pneumatic ball valve 14, and a check valve 19. The flow pneumatic ball valve 14 is located before the flow meter 1, and the check valve 19 is located after the flow meter 1. The pressure detection unit includes a pressure gauge 2 and a pressure pneumatic ball valve 15. The flow meter 1 and pressure meter 2 are installed before the pressure gauge; the flow meter 1 and pressure gauge 2 are connected in parallel on the detection pipeline before entering the bearing housing 18 via a solenoid reversing valve 17. The flow and pressure detection unit is configured as one flow meter 1 and multiple pressure gauges 2 connected in parallel to form multiple flow and pressure detection units, which are then connected in parallel to their respective detection pipelines. Flow detection and pressure detection are two separate pipelines connected in parallel to the detection pipeline. The solenoid reversing valve 17 is controlled by the electrical control box 13 to switch the flow of pressurized water from the water tank 10 into the pressure gauge 2 or the flow meter 1 for pressure and flow detection of the bearing housing 18. The flow meter 1 is installed after the pressure gauge 2. The purpose of adding a one-way valve 19 is to prevent water from flowing backward through the parallel node to flowmeter 1 during pressure testing, which could damage flowmeter 1. During flow detection, the solenoid directional valve 17 controls the flow of water through the pipeline containing flowmeter 1. The pressurized water in water tank 10 passes sequentially through water pump 12, solenoid directional valve 17, flow pneumatic ball valve 14, flowmeter 1, one-way valve 19, bearing housing 18, and return pneumatic ball valve 16 before returning to water tank 10, completing the flow detection of the bearing housing. During pressure testing, the electrical control box 13 controls the solenoid directional valve 17 to switch, controlling the flow of water through the pipeline containing pressure gauge 2, and the pressurized water in water tank 10... After passing through the water pump 12, solenoid directional valve 17, pressure pneumatic ball valve 15, pressure gauge 2, bearing housing 18, and return pneumatic ball valve 17, the water returns to the water tank 10, completing the pressure detection of the bearing housing 18. The return pneumatic ball valve 17 is installed on the return water detection pipeline from the bearing housing 18 to the water tank 10 to control the on / off state. The solenoid directional valve 15, flow detection switch 4, pressure detection switch 5, and pneumatic ball valve 14 are connected to the electrical control box 13. The flow detection switch 4 is connected to the electrical control box 13 to control the flow detection of the bearing housing 18, and the pressure detection switch 5 is connected to the electrical control box 13 to control the pressure detection of the bearing housing 18.

[0033] Furthermore, the clamping unit includes a manual switch 3, a clamping cylinder 6, and a clamping head 7. The manual switch 3 is connected to the clamping cylinder 6, and the bottom of the clamping cylinder 6 is connected to the clamping head 7. The clamping head 7 clamps the bearing seat 18 in the middle with the experimental fixture 8.

[0034] Furthermore, the electrical control box 13 controls the switching of the electromagnetic reversing valve 15, and the switching of the electromagnetic reversing valve 15 changes the pressure detection and flow detection, as well as the on / off and on / off sequence of the pneumatic ball valve 14.

[0035] Furthermore, the universal base 9 is provided with an inlet 20 and an outlet 21 for connecting to the detection pipeline. The inlet 20 and outlet 21 of the universal base 9 are connected to the water tank 10. The universal base 9 is located on the top of the water tank 10. The water in the water tank 10 is connected to the detection pipeline through the inlet 20 and outlet 21 of the universal base 9 to complete the flow rate detection and pressure detection.

[0036] Furthermore, the experimental fixture 8 is provided with an inlet channel 22 and a return channel 23. One end of the inlet channel 20 and the return channel 21 are connected to the testing pipeline, and the other end is connected to the water channel of the bearing seat 16. The inlet channel 22 of the experimental fixture 8 is connected to the inlet A port of the water channel of the bearing seat 18, and the return channel 23 of the experimental fixture 8 is connected to the outlet B port of the water channel of the bearing seat 18, so that the testing water is introduced into the water channel of the bearing seat 18.

[0037] Furthermore, the pneumatic ball valve 14 is made of stainless steel, which is rust-proof and corrosion-resistant.

[0038] Furthermore, a filter cotton 11 is installed before the water tank 10 is connected to the detection pipeline to filter impurities. The test water after filtering impurities is returned to the water tank and reused in the bearing seat flow detection and pressure detection, thus recycling water resources and saving water.

[0039] Furthermore, the experimental fixture 8 is bolted to the universal base 9, and the experimental fixture 8 and the universal base 9 can be disassembled and replaced. Multiple universal bases 9 on the test bench 24 can be equipped with the same type of experimental fixture 8 to test the same type of bearing seat 18, or different types of experimental fixture 8 can be installed to test different types of bearing seats 18.

[0040] like Figures 1-7 As shown, the bearing housing flow detection process is as follows: Place the bearing housing 18 on the experimental fixture 8, press down the manual switch 3, extend the clamping cylinder 6, and press the clamping head 7 against the bearing housing 18. Start the flow detection switch 4. The electrical control box 13 controls the water pump 12 and the solenoid reversing valve 15 to start simultaneously. The solenoid reversing valve 17 guides the flow delivered by the water pump 12 into the parallel branch pipeline of the flow detection system. The flow pneumatic ball valve 14 before the flow meter 1 connects the bearing housing 18 to the water tank 10. When the pneumatic ball valve 16 is opened, the water pressure at the outlet of the water pump 12 flows through the pneumatic ball valve 14 to the flow meter 1, then to the check valve 17, and through the inlet channel 20 of the test fixture 8 to the inlet A port of the bearing seat 18. After flowing through the water channel of the bearing seat 18, it flows out from the outlet B port of the bearing seat. After passing through the return pneumatic ball valve 16 and being filtered by the filter cotton 11, it returns to the water tank 10. After the flow meter 1 displays the value, the flow detection switch 4 is closed, and the water pump 12 and the solenoid reversing valve 17 are closed at the same time. The flow detection test is completed.

[0041] like Figures 1-7 As shown, the bearing housing pressure detection process is as follows: The pressure detection switch 5 is activated, the water pump 12 and the control solenoid directional valve 17 are switched, the pressure water in the detection pipeline is redirected to the parallel branch pipeline for pressure detection, the pressure pneumatic ball valve 15 is opened, and the pressure water from the outlet of the water pump 12 flows through the pressure pneumatic ball valve 15 to the pressure gauge 2, through the inlet channel 20 of the experimental fixture 8 to the bearing housing inlet A, flows through the water channel of the bearing housing 18 and out through the bearing housing outlet B, passes through the return pneumatic ball valve 16 and is filtered by the filter cotton 11 before returning to the water tank 10. The control program in the electrical control box 13 sequentially closes the solenoid directional valve 17, the pneumatic ball valve, and the water pump 12. First, the return pneumatic ball valve 16 is closed. With water pump 12 not shut off, after the pressure testing parallel pipeline and bearing housing 18 are filled with water, 5 seconds later, the pressure pneumatic ball valve 15 before the pressure gauge closes. Then, 2 seconds later, the solenoid directional valve 17 and the water pump shut off. The water filling test lasts 15 minutes. After the pressure test, the pressure testing switch 5 is turned off, and the electrical control box 13 controls the solenoid directional valve 17 to start. The pressure pneumatic ball valve 15 and the return pneumatic ball valve 16 open to relieve pressure. 2 seconds later, the solenoid directional valve 17 closes, and the pressure pneumatic ball valve 15 and the return pneumatic ball valve 16 close. The pressure test is complete, the internal pressure of bearing housing 18 is released, the manual switch 3 is raised, the clamping cylinder 6 retracts, and the flow and pressure test of bearing housing 18 is completed.

[0042] Flow and pressure detection can simultaneously test four sets of bearing housings 18, increasing testing efficiency by four times. This completely eliminates the need for manual clamping of the bearing housings 18 and manual tightening of the test fixture 8 and oil pipes with bolts. Through a combination of pneumatic ball valves and solenoid directional valves 17, and using an electrician-edited control program, flow and pressure detection are controlled separately by two buttons. The test bench 24 can continuously and quickly complete simultaneous testing of multiple bearing housings 18, reducing equipment footprint and manual operation time, and improving testing efficiency.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bearing housing flow and pressure testing device, comprising a test bench, an electrical control box, a flow and pressure testing unit, a clamping unit, a test fixture, a universal base, a water tank, a water pump, and testing pipelines, characterized in that, The test bench has several universal bases on its surface, and a test fixture is mounted on the top of each base. A clamping unit is mounted on the top of the test bench at the corresponding position of each test fixture. The clamping unit and the test fixture clamp a bearing seat. Each bearing seat corresponds to a flow and pressure detection unit. A water tank is located at the bottom of the test bench. The water tank is connected to several bearing seats via a water pump and several parallel detection pipelines. Each detection pipeline is connected to a flow and pressure detection unit. An electrical control box is located on one side of the test bench, and the electrical control box controls each flow and pressure detection unit. The pressure detection unit includes a flow meter, a pressure meter, a flow detection switch, a pressure detection switch, a check valve, a pneumatic ball valve, and a solenoid directional valve. The flow meter and pressure meter are connected in parallel on the pipeline before entering the bearing housing via the solenoid directional valve. Pneumatic ball valves are installed on the parallel pipelines before the flow meter and pressure meter to control their on / off states. A check valve is installed on the parallel pipeline after the flow meter. A pneumatic ball valve is installed on the return water detection pipeline from the bearing housing to the water tank to control its on / off state. The solenoid directional valve, flow detection switch, pressure detection switch, and pneumatic ball valve are connected to an electrical control box.

2. The bearing housing flow and pressure detection device according to claim 1, characterized in that, The clamping unit includes a manual switch, a clamping cylinder, and a clamping head. The manual switch is connected to the clamping cylinder, and the bottom of the clamping cylinder is connected to the clamping head. The clamping head clamps the bearing seat in the middle of the experimental fixture.

3. The bearing housing flow and pressure detection device according to claim 1, characterized in that, The electrical control box controls the switching of the electromagnetic reversing valve, and the on / off state and sequence of the pneumatic ball valve.

4. The bearing housing flow and pressure detection device according to claim 1, characterized in that, The universal base is equipped with an inlet and an outlet for the detection pipeline, and the inlet and outlet of the universal base are connected to the water tank.

5. The bearing housing flow and pressure detection device according to claim 1, characterized in that, The experimental fixture is equipped with a water inlet channel and a water return channel. One end of the water inlet channel and the water return channel are connected to the testing pipeline, and the other end is connected to the bearing seat water channel.

6. The bearing housing flow and pressure detection device according to claim 3, characterized in that, The pneumatic ball valve is made of stainless steel.

7. The bearing housing flow and pressure detection device according to claim 1, characterized in that, Before the water tank is connected to the detection pipeline, filter cotton is installed to filter impurities.

8. The bearing housing flow and pressure detection device according to claim 1, characterized in that, The experimental fixture is connected to the universal base by bolts.

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