CN210660532U - Oil pump hydraulic test system - Google Patents
Oil pump hydraulic test system Download PDFInfo
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- CN210660532U CN210660532U CN201920943534.6U CN201920943534U CN210660532U CN 210660532 U CN210660532 U CN 210660532U CN 201920943534 U CN201920943534 U CN 201920943534U CN 210660532 U CN210660532 U CN 210660532U
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Abstract
The utility model provides an oil pump hydraulic pressure test system, including clean oil region, first temperature sensor, delivery pump, filter, heat-preserving container, second temperature sensor, gas accuse ooff valve, first pressure sensor, second pressure sensor, mass flow meter, gas accuse back pressure valve, dirty oil region, circulating pump, circulating filter, flow switch, heater, third temperature sensor and cooler. The utility model provides a can test various liquid pump product performance parameter's under different conditions test system steadily, accurately, can test the pressure flow characteristic of the oil pump product for the vehicle under appointed fluid medium, temperature, rotational speed. The test result shows that the temperature of the system can be accurately controlled within +/-3 ℃, the load pressure can be accurately controlled, and the accuracy of the measured output flow is within the error range of 0.1%.
Description
Technical Field
The utility model relates to a test machinery technical field, concretely relates to oil pump hydraulic test system.
Background
The oil pump is a device which continuously sucks out the transmission lubricating oil from an oil tank and provides specified pressure and flow for a transmission lubricating system of an automobile engine or a gearbox. Before the oil pump leaves a factory, parameters such as outlet pressure, outlet flow, working voltage and working current of the oil pump need to be tested, so that whether the performance of the product meets the specified requirements or not is judged.
At present, no equipment for testing an oil pump exists in China, the testing equipment of the existing hydraulic pump generally carries out parameter testing under a specific condition, the results of other conditions can only be estimated according to the results of the known conditions, the testing under various conditions cannot be accurately carried out, and the actual performance parameter indexes of various actual working conditions of the hydraulic pump cannot be truly embodied; in particular, a hydraulic test system generally has no control or precise control on the system temperature, which causes great difference between the test result and the practical application and loss of referential significance, because the oil has great viscosity difference under different temperatures, and the viscosity has great influence on the flow and pressure dynamics. For example, the oil pump products used oils with viscosities 7 times different at 20 ℃ and 80 ℃, so the test results were far from each other.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can stably, accurately test various liquid pump product performance parameter's under different conditions test system.
In order to achieve the purpose, the utility model provides an oil pump hydraulic pressure test system, including clean oil region, first temperature sensor, delivery pump, filter, heat-preserving container, second temperature sensor, gas accuse ooff valve, first pressure sensor, second pressure sensor, mass flowmeter, back pressure valve, dirty oil region, circulating pump, circulating filter, flow switch, heater, third temperature sensor and cooler; the clean oil area is provided with a first temperature sensor, the clean oil area is connected with the inlet of the delivery pump, the outlet of the delivery pump is connected with the inlet of the filter, the outlet of the filter is connected with the inlet of the heat-preserving container, a second temperature sensor is arranged in the heat-preserving container, the outlet of the heat-preserving container is connected with the inlet of the air control switch valve, the outlet of the air control switch valve is provided with a pipeline connected with the inlet of a tested pump product, the first pressure sensor is arranged on the connecting pipeline of the air control switch valve and the tested pump product, the inlet of the mass flow meter is provided with a pipeline connected with the outlet of the tested pump product, a second pressure sensor is arranged on the connecting pipeline of the tested pump product and the mass flow meter, the outlet of the mass flow meter is connected with the inlet of the back pressure valve, the outlet of the back pressure valve is connected with the dirty oil area, and the, the outlet of the circulating pump is connected with the inlet of the circulating filter, the outlet of the circulating filter is connected with the inlet of the flow switch, the outlet of the flow switch is connected with the inlet of the heater, the outlet of the heater is connected with the inlet of the cooler through a pipeline, a third temperature sensor is arranged on a connecting pipeline between the heater and the cooler, and the outlet of the cooler is connected with the clean oil area; the first temperature sensor, the second temperature sensor and the third temperature sensor are connected with the control unit, and the control unit controls the heater and the cooler.
Optionally, the clean oil area and the dirty oil area are two parts inside the thermal insulation oil tank, and the thermal insulation oil tank is of a double-layer structure.
Optionally, the clean oil area, the heat-preserving container and the dirty oil area are provided with liquid level meters.
Optionally, the first pressure sensor and the second pressure sensor are connected to a microprocessor, the microprocessor is connected to an operation control screen, and the sensor pressure is displayed on the control operation screen.
Optionally, the backpressure valve is a pneumatic control backpressure valve with valve core position control.
Optionally, the cooler has a bypass, and when cooling is not required, oil bypasses.
The utility model has the advantages as follows:
the utility model provides a can test various liquid pump product performance parameter's under different conditions test system steadily, accurately, can test the pressure flow characteristic of the oil pump product for the vehicle under appointed fluid medium, temperature, rotational speed. The temperature of the liquid medium is accurately controlled to further control the viscosity of the oil medium, the pneumatic control back pressure valve with valve core position control is used for accurately controlling the load pressure according to a pressure signal, the pipeline design, the control valve and main elements are low in pressure loss and zero in leakage design layout, and the high-precision mass flow meter is used for testing the flow of the pump product under different pressure conditions, so that the accurate pressure flow characteristic of the pump product is obtained. The test result shows that the temperature of the system can be accurately controlled within +/-3 ℃, the load pressure can be accurately controlled, and the accuracy of the measured output flow is within the error range of 0.1%.
Drawings
Fig. 1 is a schematic structural diagram of an oil pump hydraulic test system.
The reference numerals are explained below:
1. the device comprises an oil purification area, 2, a first temperature sensor, 3, a delivery pump, 4, a filter, 5, a heat preservation barrel, 6, a second temperature sensor, 7, a pneumatic control switch valve, 8, a first pressure sensor, 9, a tested pump product, 10, a second pressure sensor, 11, a mass flowmeter, 12, a pneumatic control back pressure valve, 13, a dirty oil area, 14, a circulating pump, 15, a circulating filter, 16, a flow switch, 17, a heater, 18, a third temperature sensor, 19 and a cooler.
Detailed Description
The technical solution proposed by the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for explaining relative positional relationships between the respective members or components, and do not particularly limit the specific installation orientations of the respective members or components.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different components or elements and are not used to indicate or imply the relative importance or number of the indicated components or elements. "plurality" means two or more unless otherwise specified.
As shown in fig. 1, the utility model provides an oil pump hydraulic pressure test system, including clean oil region 1, first temperature sensor 2, delivery pump 3, filter 4, heat-preserving container 5, second temperature sensor 6, gas accuse ooff valve 7, first pressure sensor 8, second pressure sensor 10, mass flow meter 11, gas accuse backpressure valve 12, dirty oil region 13, circulating pump 14, circulating filter 15, flow switch 16, heater 17, third temperature sensor 18, cooler 19.
In one embodiment, the clean oil zone 1 and the dirty oil zone 13 are two parts inside the thermal oil tank, and the thermal oil tank has a double-layer structure. In another embodiment, the clean oil zone 1 and the dirty oil zone 13 are two separate devices. In order to facilitate the viewing of the liquid level height, the clean oil area 1, the heat preservation barrel 5 and the dirty oil area 13 are provided with liquid level meters. The clean oil region 1 is provided with a first temperature sensor 2, the clean oil region 1 is connected with an inlet of a delivery pump 3, an outlet of the delivery pump 3 is connected with an inlet of a filter 4, an outlet of the filter 4 is connected with an inlet of a heat-preserving container 5, and a second temperature sensor 6 is arranged in the heat-preserving container 5. The outlet of the heat-insulating barrel 5 is connected with the inlet of the pneumatic control switch valve 7, the outlet of the pneumatic control switch valve 7 is connected with the inlet of the tested pump product 9 through a pipeline, a first pressure sensor 8 is arranged on the connecting pipeline of the pneumatic control switch valve 7 and the tested pump product 9, the outlet of the tested pump product 9 is connected with the inlet of the mass flow meter 11 through a pipeline, and a second pressure sensor 10 is arranged on the connecting pipeline of the tested pump product 9 and the mass flow meter 11. In one embodiment, the first pressure sensor 8 and the second pressure sensor 10 are pressure sensors with displays. In another embodiment, the first pressure sensor 8 and the second pressure sensor 10 are connected to a microprocessor, and the microprocessor processes the signals and sends the processed signals to a computer, a control operation screen, and other devices, so as to display pressure data. The outlet of the mass flowmeter 11 is connected with the inlet of an air control backpressure valve 12, and the outlet of the air control backpressure valve 12 is connected with a dirty oil area 13. The dirty oil area 13 is connected with an inlet of a circulating pump 14, an outlet of the circulating pump 14 is connected with an inlet of a circulating filter 15, an outlet of the circulating filter 15 is connected with an inlet of a flow switch 16, and the flow switch 16 is used for judging whether oil flows circularly or not and allowing heating to be started only under the condition that circulating oil flows. An outlet of the flow switch 16 is connected with an inlet of a heater 17, an outlet of the heater 17 is connected with an inlet of a cooler 19 through a pipeline, a third temperature sensor 18 is arranged on a connecting pipeline between the heater 17 and the cooler 19, and an outlet of the cooler 19 is connected with the oil purification area 1. The first temperature sensor 2, the second temperature sensor 6 and the third temperature sensor 18 are connected with a control unit, the control unit controls the heater 17 and the cooler 19, adjusts the power of the heater 17 according to the signals of the 3 temperature sensors, controls the on/off of the cooler 19, and adjusts the cooling power of the cooler 19. The cooler 19 may have a bypass, by which oil is bypassed when cooling is not required. The cooler 19 can use water as cooling medium, and the amount of cooling water is adjusted by a proportional water valve, so as to ensure that the temperature of the oil liquid is reduced to the target temperature.
According to the requirement, the oil pump hydraulic test system can realize multi-station simultaneous test in a parallel connection mode. Each station is provided with a heat-insulating barrel 5, a second temperature sensor 6, a pneumatic control switch valve 7, a first pressure sensor 8, a second pressure sensor 10, a mass flowmeter 11 and a pneumatic control back pressure valve 12.
The tested pump product 9 is driven to suck oil from the heat-insulating barrel 5 and is continuously discharged, a pressure sensor is respectively arranged at the inlet and the outlet of the tested pump product 9 to detect the pressure condition, and the whole flow of the outlet of the tested pump product 9 enters the mass flow meter 11 and is monitored in real time. The flowmeter can obtain accurate real-time flow according to different vibration frequencies generated by the mass of fluid passing through a specific pipeline, all the flow in and out completely does not leak through an internal pipeline in the test process, and errors caused by internal leakage are not caused unlike a volumetric flowmeter, so the precision of the test result can reach 0.1% or higher. The flowmeter can be used for directly and continuously measuring mass flow, the measurement result is independent of fluid characteristics (temperature/pressure/viscosity), the precision is not influenced by the change of parameters such as environment and process temperature, pressure, medium viscosity and the like, the multi-parameter simultaneous measurement (mass flow, density and temperature) can be carried out, and the flowmeter has no mechanical moving part in the structure, so that the flowmeter has no abrasion and does not need filtration and maintenance. The outlet pressure load of the tested pump product 9 is accurately controlled in real time by a pneumatic control back pressure valve 12 with valve core position control, the position of the valve core can be adjusted in real time according to an outlet pressure signal, a very stable load is ensured in the testing process, and the fluctuation caused by the interference of product performance parameters in the testing process is avoided. After the test is finished, the pneumatic switch valve 7 can realize air blowing to remove oil from the tested pump product 9, and residual oil after the test is removed. Oil liquid in the product testing process returns to the dirty oil area 13 through the oil return pipe, and enters the clean oil area 1 after passing through the refiltering and heating system.
Use the utility model discloses an oil pump hydraulic test system tests the performance of an oil pump product, and the test requirement of this oil pump product is: 1. the flow rate of the product is more than 18L/min under the conditions that the specified medium is 80 ℃, the rotating speed is 4338rpm and the load is 1.0bar pressure; 2. the flow rate of the product is more than 1L/min under the conditions that the specified medium is 80 ℃, the rotating speed is 230rpm and the load is 0.3bar pressure; the test result shows that the temperature of the system can be accurately controlled within +/-3 ℃, the load pressure can be accurately controlled, and the accuracy of the measured output flow is within the error range of 0.1%.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (7)
1. The oil pump hydraulic test system is characterized by comprising an oil purifying area, a first temperature sensor, a delivery pump, a filter, a heat-preserving container, a second temperature sensor, a pneumatic control switch valve, a first pressure sensor, a second pressure sensor, a mass flowmeter, a back pressure valve, a dirty oil area, a circulating pump, a circulating filter, a flow switch, a heater, a third temperature sensor and a cooler; the clean oil area is provided with a first temperature sensor, the clean oil area is connected with the inlet of the delivery pump, the outlet of the delivery pump is connected with the inlet of the filter, the outlet of the filter is connected with the inlet of the heat-preserving container, a second temperature sensor is arranged in the heat-preserving container, the outlet of the heat-preserving container is connected with the inlet of the air control switch valve, the outlet of the air control switch valve is provided with a pipeline connected with the inlet of a tested pump product, the first pressure sensor is arranged on the connecting pipeline of the air control switch valve and the tested pump product, the inlet of the mass flow meter is provided with a pipeline connected with the outlet of the tested pump product, a second pressure sensor is arranged on the connecting pipeline of the tested pump product and the mass flow meter, the outlet of the mass flow meter is connected with the inlet of the back pressure valve, the outlet of the back pressure valve is connected with the dirty oil area, and the, the outlet of the circulating pump is connected with the inlet of the circulating filter, the outlet of the circulating filter is connected with the inlet of the flow switch, the outlet of the flow switch is connected with the inlet of the heater, the outlet of the heater is connected with the inlet of the cooler through a pipeline, a third temperature sensor is arranged on a connecting pipeline between the heater and the cooler, and the outlet of the cooler is connected with the clean oil area; the first temperature sensor, the second temperature sensor and the third temperature sensor are connected with the control unit, and the control unit controls the heater and the cooler.
2. The oil pump hydraulic test system of claim 1, wherein the clean oil zone and the dirty oil zone are two portions of the interior of the thermal oil tank.
3. The oil pump hydraulic test system of claim 2, wherein the thermal oil tank is a double-layer structure.
4. The oil pump hydraulic test system of claim 1, wherein the clean oil zone, the thermal bucket, and the dirty oil zone are provided with level gauges.
5. The oil pump hydraulic test system of claim 1, wherein the first pressure sensor and the second pressure sensor are connected to a microprocessor, the microprocessor being connected to an operating control screen, the sensor pressure being displayed on the control operating screen.
6. The oil pump hydraulic test system of claim 1, wherein the back pressure valve is a pneumatically controlled back pressure valve with spool position control.
7. The oil pump hydraulic test system of claim 1, wherein the cooler has a bypass through which oil bypasses when cooling is not required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920943534.6U CN210660532U (en) | 2019-06-21 | 2019-06-21 | Oil pump hydraulic test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920943534.6U CN210660532U (en) | 2019-06-21 | 2019-06-21 | Oil pump hydraulic test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210660532U true CN210660532U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920943534.6U Expired - Fee Related CN210660532U (en) | 2019-06-21 | 2019-06-21 | Oil pump hydraulic test system |
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| Country | Link |
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| CN (1) | CN210660532U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046291A (en) * | 2021-11-30 | 2022-02-15 | 芜湖赢诺液压科技有限公司 | Performance test equipment for cartridge valve |
| CN115126636A (en) * | 2022-07-12 | 2022-09-30 | 武汉东测科技有限责任公司 | Fuel oil system test bench |
| CN115898855A (en) * | 2023-02-10 | 2023-04-04 | 南京航空航天大学金城学院 | Single-double pump test control device and test method |
-
2019
- 2019-06-21 CN CN201920943534.6U patent/CN210660532U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046291A (en) * | 2021-11-30 | 2022-02-15 | 芜湖赢诺液压科技有限公司 | Performance test equipment for cartridge valve |
| CN114046291B (en) * | 2021-11-30 | 2024-06-21 | 芜湖赢诺液压科技有限公司 | Cartridge valve performance test equipment |
| CN115126636A (en) * | 2022-07-12 | 2022-09-30 | 武汉东测科技有限责任公司 | Fuel oil system test bench |
| CN115126636B (en) * | 2022-07-12 | 2024-01-09 | 武汉东测科技有限责任公司 | Fuel system test bed |
| CN115898855A (en) * | 2023-02-10 | 2023-04-04 | 南京航空航天大学金城学院 | Single-double pump test control device and test method |
| CN115898855B (en) * | 2023-02-10 | 2023-12-29 | 南京航空航天大学金城学院 | Single-double pump test control device and test method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 |