Vacuum pump performance test tool
The vacuum pump performance test fixture uses air pressure to deliver test oil, combined with the clamping and oil supply mechanism, which solves the problem of high power consumption in vacuum pump performance testing and achieves low-cost and efficient testing results.
Patent Information
- Application Number
- CN202423082562.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-12-13
AI Technical Summary
In the prior art, vacuum pump performance testing consumes a lot of electricity, resulting in high testing costs.
A vacuum pump performance test fixture is used to deliver test oil using air pressure. Combined with the clamping mechanism and oil supply mechanism, the oil storage tank is inflated through an air pump, and the test oil is sent into the vacuum pump using air pressure. The torque and power are detected by a torque sensor to achieve performance testing.
It effectively reduces the power consumption of the test, lowers the cost of vacuum pump performance testing, and reduces the waste of test oil by alternating the use of oil storage tanks and oil return tanks, thereby improving test efficiency.
Smart Images
Figure CN223387502U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum pump production, in particular to a vacuum pump performance testing tool. Background Art
[0002] After the vacuum pump is manufactured and assembled, it needs to be tested for performance. However, in the prior art, an oil pump is usually used to directly deliver test oil to the vacuum pump to be tested, which consumes a lot of power and leads to high testing costs. Utility Model Content
[0003] In order to reduce the performance test cost of a vacuum pump, the utility model proposes a vacuum pump performance test tool, which includes a test mechanism, an oil supply mechanism and a clamping mechanism. The test mechanism includes a test block, a torque sensor, a test drive shaft and a test drive member. The test block is provided with a positioning groove, an oil inlet hole and an oil drain cavity. The bottom of the positioning groove is provided with a drive through hole. The oil inlet hole is connected to the positioning groove from the side of the positioning groove. The oil drain cavity is located below the positioning groove and is connected to the positioning groove; the torque sensor is located between the test drive shaft and the test drive member and is connected to the test drive shaft and the test drive member, and the drive head of the test drive shaft is inserted into the positioning groove through the drive through hole;
[0004] The oil supply mechanism includes an oil storage tank, an air pump and an oil supply pipe. An oil outlet is provided at the bottom of the oil storage tank, and the oil outlet is connected to the inlet of the oil inlet hole through the oil supply pipe; an air inlet is provided at the top of the oil storage tank, and the air inlet is connected to the air outlet of the air pump through the air inlet pipe.
[0005] When using the vacuum pump performance test fixture of the present invention to test the vacuum pump to be tested, the vacuum pump to be tested, which is inserted into the positioning groove, is clamped and fixed by a clamping mechanism; the air pump in the oil supply mechanism is used to inflate the oil storage tank to increase the air pressure in the oil storage tank, and the test oil stored in the oil storage tank is pressed into the test block through the oil supply pipe and transported to the vacuum pump to be tested through the oil inlet hole in the test block; the test drive member is used to drive the vacuum pump to be tested to operate through the test drive shaft, and the torque and power of the vacuum pump to be tested are detected in real time by a torque sensor to complete the performance test of the vacuum pump to be tested. It can be seen that the vacuum pump performance test fixture of the present invention uses air pressure to transport test oil to the vacuum pump to be tested, which can effectively reduce the power consumption required for the test and reduce the cost of the performance test of the vacuum pump.
[0006] Preferably, the bottom of the oil drain chamber is provided with an oil drain port; the oil supply mechanism includes an oil return tank, the bottom of which is provided with an oil return port, which is connected to the oil drain port via an oil return pipe. In this way, after the test is completed, the test oil accumulated in the oil drain chamber can be transported to the oil return tank via the oil return pipe, completing the recovery of the test oil and reducing testing costs. Furthermore, a second oil return port is provided at the bottom of the oil storage tank, which is connected to the oil drain port through a second oil return pipe, and a second oil drain control valve is provided on the second oil return pipe, and a first oil drain control valve is provided on the oil return pipe; a second oil outlet is provided at the bottom of the oil return tank, which is connected to the inlet of the oil inlet hole through a second oil supply pipe, and a second oil supply control valve is provided on the second oil supply pipe, and a first oil supply control valve is provided on the oil supply pipe; a second air inlet is provided at the top of the oil return tank, which is connected to the air outlet of the air pump through a second air inlet pipe, and a second air intake control valve is provided on the second air intake pipe, and a first air intake control valve is provided on the air intake pipe. In this way, during the test process, the first air intake control valve, the first oil supply control valve, and the second oil discharge control valve can be opened simultaneously, and the second air intake control valve, the second oil supply control valve, and the first oil discharge control valve can be closed, so that the air pump can be used to fill the oil storage tank and transfer the test oil in the oil storage tank to the test block through the oil supply pipe for testing, while the test oil accumulated in the oil discharge chamber can be transferred to the return oil tank through the oil return pipe for recycling; or the second air intake control valve, the second oil supply control valve, and the first oil discharge control valve can be opened simultaneously, and the first air intake control valve, the first oil supply control valve, and the second oil discharge control valve can be closed, so that the air pump can be used to fill the return oil tank and transfer the test oil in the return oil tank to the test block through the second oil supply pipe for testing, while the test oil accumulated in the oil discharge chamber can be transferred to the oil storage tank through the second oil return pipe for recycling. As can be seen from this, such an oil supply mechanism can use the oil storage tank and the oil return tank to alternately transfer test oil to the test block, which can not only reduce the waste of test oil, but also improve testing efficiency and reduce testing costs. Further preferably, the first oil discharge control valve, the second oil discharge control valve, the first oil supply control valve, the second oil supply control valve, the first air intake control valve, and the second air intake control valve are all solenoid valves. Thus, solenoid valves are conveniently selected and simple to control as control valves.
[0007] Preferably, a connecting groove is provided on the drive head of the test drive shaft, and a drive oil inlet through hole is provided on the side wall of the connecting groove; and a connecting pin is provided at the free end of the drive head. In this way, when the test drive shaft is connected to the vacuum pump to be tested, the drive head is connected to the vacuum pump to be tested using the connecting pin, which makes the connection simple and convenient. During the test process, the test oil can enter the inner cavity of the vacuum pump to be tested through the drive oil inlet through hole and the connecting groove, preventing the test oil from overflowing from the connection between the test drive shaft and the vacuum pump to be tested, which would affect the test, thereby improving test efficiency and reducing test costs.
[0008] Preferably, the clamping mechanism includes at least two clamping members, and the clamping member includes a clamping drive member and a clamping plate. The clamping plate is installed on the clamping drive rod of the clamping drive member. When the test is performed, the clamping plate is pressed on the vacuum pump to be tested. In this way, after the vacuum pump to be tested is installed on the test block, the clamping plate on the clamping member can be used to press the vacuum pump to be tested, so as to prevent the vacuum pump to be tested from being separated from the test drive shaft during the test and affecting the test. In addition, such a clamping mechanism has a simple structure, is easy to manufacture and has low cost. Furthermore, the clamping drive member is a hydraulic drive cylinder. In this way, using a hydraulic drive cylinder as the clamping drive member in the clamping member is convenient to select and simple to control.
[0009] Preferably, the clamping mechanism includes a positioning block located on a side of the test block and fixed to the test block. Thus, during the test process, the positioning block can be used to clamp the housing of the vacuum pump to be tested, preventing the vacuum pump from rotating as a whole with the test drive shaft during the test, thereby affecting the test. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the structure of the vacuum pump performance test fixture from a first angle of view of the present utility model;
[0011] Figure 2 This is a schematic diagram of the structure of the vacuum pump performance test fixture from a second angle of the present invention;
[0012] Figure 3 for Figure 2 AA cross-sectional structural diagram in;
[0013] Figure 4 for Figure 2 BB cross-sectional structure diagram in;
[0014] Figure 5 for Figure 4 Schematic diagram of the amplified structure of Q in FIG;
[0015] Figure 6 for Figure 2 Schematic diagram of CC cross-sectional structure;
[0016] Figure 7 This is a structural schematic diagram of the vacuum pump performance testing tool of the utility model when it is in use. DETAILED DESCRIPTION
[0017] Next, combine Figures 1 to 7 , the vacuum pump performance testing tooling of the utility model is described in detail.
[0018] like Figures 1 to 7 As shown, the vacuum pump performance test fixture of the present invention includes a test mechanism, an oil supply mechanism, and a clamping mechanism. The test mechanism includes a test block 11, a torque sensor 12, a test drive shaft 13, and a test drive member 14. The test block 11 is provided with a positioning groove 111, an oil inlet hole 112, and an oil drain chamber 113. A drive through hole 114 is provided at the bottom of the positioning groove 111. The oil inlet hole 112 communicates with the positioning groove 111 from the side. The oil drain chamber 113 is located below the positioning groove 111 and communicates with the positioning groove 111 through an oil leak hole 115. The torque sensor 12 is located between and connected to the test drive shaft 13 and the test drive member 14. The drive head of the test drive shaft 13 is inserted into the positioning groove 111 through the drive through hole 114. Preferably, a connecting groove 131 is provided on the driving head of the test driving shaft 13, and a driving oil inlet through hole 132 is provided on the side wall of the connecting groove 131; and a connecting pin 133 is provided on the free end of the driving head. In this way, when the test driving shaft 13 is connected to the vacuum pump 2 to be tested, the driving head is connected to the vacuum pump 2 to be tested using the connecting pin 133, and the connection is simple and convenient; during the test process, the test oil can enter the inner cavity of the vacuum pump 2 to be tested through the driving oil inlet through hole 132 and the connecting groove 131, thereby preventing the test oil from overflowing from the connection portion between the test driving shaft 13 and the vacuum pump 2 to be tested, thereby affecting the test, thereby improving the test efficiency and reducing the test cost.
[0019] like Figures 1 to 6As shown, the oil supply mechanism includes an oil tank 31, an air pump (not shown), and an oil supply pipe 32. An oil outlet (not shown) is provided at the bottom of the oil tank 31, which is connected to the inlet of the oil inlet hole 112 via the oil supply pipe 32. An air inlet (not shown) is provided at the top of the oil tank 31, which is connected to the air outlet of the air pump via the air inlet pipe 33. Preferably, the oil supply mechanism includes an oil return tank 34, which has an oil return port (not shown) at its bottom, which is connected to the oil drain port 1131 at the bottom of the oil drain chamber 113 via the oil return pipe 35. After the test is completed, the test oil accumulated in the oil drain chamber 113 can be transported to the oil return tank 34 via the oil return pipe 35, completing the recovery of the test oil and saving testing costs. Preferably, a second oil return port (not shown in the figure) is provided at the bottom of the oil storage tank 31, and the second oil return port is connected to the oil drain port 1131 through a second oil return pipe 36, and a second oil drain control valve 361 is provided on the second oil return pipe 36, and a first oil drain control valve 351 is provided on the oil return pipe 35; a second oil outlet (not shown in the figure) is provided at the bottom of the oil return tank 34, and the second oil outlet is connected to the inlet of the oil inlet hole 112 through a second oil supply pipe 37, and a second oil supply control valve 371 is provided on the second oil supply pipe 37, and a first oil supply control valve 321 is provided on the oil supply pipe 32; a second air inlet (not shown in the figure) is provided at the top of the oil return tank 34, and the second air inlet is connected to the air outlet of the air pump through a second air inlet pipe 38, and a second air inlet control valve 381 is provided on the second air inlet pipe 38, and a first air inlet control valve 331 is provided on the air inlet pipe 33. In this way, during the test process, the first air intake control valve 331, the first oil supply control valve 321 and the second oil discharge control valve 361 can be opened at the same time, and the second air intake control valve 381, the second oil supply control valve 371 and the first oil discharge control valve 351 can be closed, so that the air pump can be used to inflate the oil storage tank 31 and the test oil in the oil storage tank 331 can be transported to the test block 11 through the oil supply pipe 32 for testing. At the same time, the test oil accumulated in the oil discharge chamber 113 can be transported to the oil return tank 34 through the oil return pipe 35 for return. or simultaneously open the second air intake control valve 381, the second oil supply control valve 361, and the first oil discharge control valve 351 and close the first air intake control valve 331, the first oil supply control valve 321, and the second oil discharge control valve 361, so as to use the air pump to inflate the oil return tank 34, and transport the test oil in the oil return tank 34 to the test block 11 through the second oil supply pipe 37 for testing, while at the same time transporting the test oil accumulated in the oil discharge chamber 113 to the oil storage tank 31 through the second oil return pipe 36 for recycling. Thus, such an oil supply mechanism can use the oil storage tank 31 and the oil return tank 34 to alternately transport test oil to the test block 11, which can not only reduce the waste of test oil, but also improve testing efficiency and reduce testing costs.Preferably, the first oil discharge control valve 351, the second oil discharge control valve 361, the first oil supply control valve 321, the second oil supply control valve 361, the first air intake control valve 331, and the second air intake control valve 381 are all solenoid valves. Using solenoid valves as control valves is convenient and simple to control. Preferably, an oil reservoir port (not shown) is provided on the sidewall of the oil storage tank 31. This port is connected to an oil reservoir pipe 391, and an oil reservoir control valve 3911 is provided on the oil storage tank 31. A second oil reservoir port (not shown) is provided on the sidewall of the oil return tank 34. This port is connected to a second oil reservoir pipe 392, and a second oil reservoir control valve 3921 is provided on the second oil reservoir pipe 392. Therefore, during test preparation and testing, the first oil reservoir control valve 3911 and / or the second oil reservoir control valve 3921 can be opened as needed to inject test oil into the oil storage tank 31 and / or the oil return tank 34 to meet testing requirements.
[0020] like Figures 1 to 6 As shown, the clamping mechanism includes at least two clamping members, each comprising a clamping drive member 411 and a clamping plate 412. The clamping plate 412 is mounted on the clamping drive rod 4111 of the clamping drive member 411. During testing, the clamping plate 412 is pressed against the vacuum pump 2 to be tested. Thus, after the vacuum pump 2 to be tested is mounted on the test block 11, the clamping plate 412 on the clamping member can be used to press against the vacuum pump 2 to be tested, preventing the vacuum pump 2 from separating from the test drive shaft 13 during testing, which would affect the test. Furthermore, this clamping mechanism has a simple structure, is easy to manufacture, and is low in cost. Preferably, the clamping drive member 411 is a hydraulically driven cylinder. Using a hydraulically driven cylinder as the clamping drive member 411 in the clamping member facilitates selection and control. Preferably, the clamping mechanism also includes a positioning block 42, which is located on the side of the test block 11 and is fixedly mounted to the test block 42. In this way, during the test, the positioning block 42 can be used to clamp the housing of the vacuum pump 2 to be tested, so as to prevent the vacuum pump 2 to be tested from rotating as a whole along with the test drive shaft 13 during the test, thereby affecting the test.
[0021] When using the vacuum pump performance test fixture of the present invention to test the vacuum pump to be tested, the vacuum pump to be tested, which is inserted into the positioning groove, is clamped and fixed by a clamping mechanism; the air pump in the oil supply mechanism is used to inflate the oil storage tank to increase the air pressure in the oil storage tank, and the test oil stored in the oil storage tank is pressed into the test block through the oil supply pipe and transported to the vacuum pump to be tested through the oil inlet hole in the test block; the test drive member is used to drive the vacuum pump to be tested to operate through the test drive shaft, and the torque and power of the vacuum pump to be tested are detected in real time by a torque sensor to complete the performance test of the vacuum pump to be tested. It can be seen that the vacuum pump performance test fixture of the present invention uses air pressure to transport test oil to the vacuum pump to be tested, which can effectively reduce the power consumption required for the test and reduce the cost of the performance test of the vacuum pump.
Claims
1. A vacuum pump performance test tool, characterized in that: The vacuum pump performance test tool comprises a test mechanism, an oil supply mechanism and a clamping mechanism. The test mechanism comprises a test block, a torque sensor, a test drive shaft and a test drive member. The test block is provided with a positioning groove, an oil inlet hole and an oil drain cavity. The bottom of the positioning groove is provided with a drive through hole. The oil inlet hole is connected to the positioning groove from the side of the positioning groove. The oil drain cavity is located below the positioning groove and is connected to the positioning groove. The torque sensor is located between the test drive shaft and the test drive member and is connected to the test drive shaft and the test drive member. The drive head of the test drive shaft is inserted into the positioning groove through the drive through hole. The oil supply mechanism includes an oil storage tank, an air pump and an oil supply pipe. An oil outlet is provided at the bottom of the oil storage tank, and the oil outlet is connected to the inlet of the oil inlet hole through the oil supply pipe; an air inlet is provided at the top of the oil storage tank, and the air inlet is connected to the air outlet of the air pump through the air inlet pipe.
2. The vacuum pump performance testing tool according to claim 1, characterized in that: The bottom of the oil discharge cavity is provided with an oil discharge port; the oil supply mechanism includes an oil return tank, the bottom of the oil return tank is provided with an oil return port, and the oil return port is connected to the oil discharge port through an oil return pipe.
3. The vacuum pump performance testing tool according to claim 2, characterized in that: A second oil return port is provided at the bottom of the oil storage tank, which is connected to the oil drain port through a second oil return pipe, and a second oil drain control valve is provided on the second oil return pipe, and a first oil drain control valve is provided on the oil return pipe; a second oil outlet is provided at the bottom of the oil return tank, which is connected to the inlet of the oil inlet hole through a second oil supply pipe, and a second oil supply control valve is provided on the second oil supply pipe, and a first oil supply control valve is provided on the oil supply pipe; a second air inlet is provided at the top of the oil return tank, which is connected to the air outlet of the air pump through a second air inlet pipe, and a second air intake control valve is provided on the second air intake pipe, and a first air intake control valve is provided on the air intake pipe.
4. The vacuum pump performance testing tool according to claim 3, characterized in that: The first oil discharge control valve, the second oil discharge control valve, the first oil supply control valve, the second oil supply control valve, the first air intake control valve and the second air intake control valve are all solenoid valves.
5. The vacuum pump performance testing tool according to any one of claims 1 to 4, characterized in that: A connecting groove is provided on the driving head of the test driving shaft, and a driving oil inlet through hole is provided on the side wall of the connecting groove; a connecting pin is provided on the free end of the driving head.
6. The vacuum pump performance testing tool according to any one of claims 1 to 4, characterized in that: The clamping mechanism includes at least two clamping members, each of which includes a clamping drive member and a clamping plate. The clamping plate is mounted on a clamping drive rod of the clamping drive member. During testing, the clamping plate is pressed onto the vacuum pump to be tested.
7. The vacuum pump performance testing tool according to claim 6, characterized in that: The clamping drive member is a hydraulic drive cylinder.
8. The vacuum pump performance testing tool according to claim 6, characterized in that: The clamping mechanism includes a positioning block, which is located on the side of the test block and is installed and fixed on the test block.