CN218294057U - Oil injection hydraulic system for automobile gearbox performance test - Google Patents
Oil injection hydraulic system for automobile gearbox performance test Download PDFInfo
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- CN218294057U CN218294057U CN202222663654.5U CN202222663654U CN218294057U CN 218294057 U CN218294057 U CN 218294057U CN 202222663654 U CN202222663654 U CN 202222663654U CN 218294057 U CN218294057 U CN 218294057U
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Abstract
The utility model discloses a hydraulic system especially relates to an experimental oiling hydraulic system of motor transmission performance. The structure is as follows: the oil temperature control unit is connected with the oil tank (1), the oil temperature control unit is composed of a heater (19) arranged in the oil tank (1), a circulating pump (21) communicated with the oil tank (1) through a pipeline and a cooler (18), the circulating pump (21) is communicated with the cooler (18) through a pipeline, the oil tank (1) is communicated with an automobile gearbox through an oil conveying pipeline, a power unit, a detection element unit and a control element unit are arranged on the oil conveying pipeline, and the electric cabinet is electrically connected with the power unit, the detection element unit and the control element unit. The utility model discloses oiling hydraulic system's gearbox oil can carry out thermostatic control, can simulate high temperature environment, and the oil pressure that pours into the gearbox into can be along with the rotational speed of gearbox and the automatic compensation changes, and it has the characteristics that provide stable pressure, temperature, flow.
Description
Technical Field
The utility model relates to a hydraulic system especially relates to an experimental oiling hydraulic system of motor transmission performance.
Background
The automobile gear box mainly comprises a hydraulic torque converter, a speed change mechanism, a control device and the like. The latter mainly comprises a sensor, an electric control unit and an execution unit. After the gearbox is produced, a product must be placed on a test bed to perform a series of corresponding performance tests, and the product can be allowed to leave a factory only when the requirements are strictly met. The test can effectively diagnose whether the product reaches the standard. The method comprises the following steps: firstly, basic inspection of the automatic transmission is carried out, whether the oil level of the automatic transmission is proper or not is inspected, high-quality gearbox oil is injected, whether the automatic transmission leaks oil or not is detected, whether the engine of a transmission linkage mechanism works abnormally or not is detected, and the like. The mechanical hydraulic system is checked for compliance by shifting at different speeds. In the test process, a set of oil supply system for simulating the automobile gearbox is required, and a hydraulic system which can change along with the change of the rotating speed and has stable pressure and temperature can be provided for the gearbox.
Chinese patent, patent publication No. CN105136452A, discloses a hydraulic loading system for a mild test of a gearbox rack; chinese patent, patent publication No. CN114812970a, discloses a hydraulic test rack system of an automatic transmission; chinese patent, patent publication No. CN113864289A, discloses a simulation platform of a hydraulic system of a hybrid electric vehicle and an implementation method thereof; chinese patent, patent publication No. CN112326237A, discloses a hydraulic machinery continuously variable transmission performance detection test bench. In the above patents, the hydraulic part only provides power, and the equipment does not have a constant temperature device; the pressure adjustment is fixed mechanical adjustment, not proportional feedback closed loop adjustment; therefore, the test bench hydraulic parts disclosed in the above publications have several technical problems as follows: 1. the gearbox oil cannot be subjected to constant temperature control and cannot simulate a high-temperature environment; 2. the oil pressure injected into the transmission cannot automatically compensate for changes with the rotational speed of the transmission.
Disclosure of Invention
The utility model discloses be exactly in order to solve above-mentioned technical problem, and the experimental oiling hydraulic system of motor transmission performance that provides, the utility model discloses oiling hydraulic system's gearbox oil can carry out thermostatic control, can simulate high temperature environment, and the oil pressure of pouring into the gearbox can be along with the rotational speed of gearbox and the automatic compensation changes, and it has the characteristics that provide stable pressure, temperature, flow.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the oil injection hydraulic system for the automobile gearbox performance test comprises an oil tank and an oil filling port, wherein an oil temperature control unit is connected with the oil tank and consists of a heater arranged in the oil tank, a circulating pump communicated with the oil tank through a pipeline and a cooler, the circulating pump and the cooler are communicated through the pipeline, the oil tank is communicated with the automobile gearbox through an oil conveying pipeline, a power unit, a detection element unit and a control element unit are arranged on the oil conveying pipeline, and an electric cabinet is electrically connected with the power unit, the detection element unit and the control element unit.
Preferably, be provided with visual level gauge on the above-mentioned oil tank, the shell body of oil tank is equipped with the heat preservation.
Preferably, the oil conveying pipeline is divided into two paths, one path is an oil outlet pipeline, the other path is an oil return pipeline, a valve block is arranged on the oil outlet pipeline, two branch pipelines are arranged between the valve block and the automobile gearbox, a first high-pressure filter is arranged on the oil outlet pipeline, and a second high-pressure filter is arranged on the oil return pipeline.
Preferably, the power unit is composed of a pump set, a first oil filling pump and a first motor which are installed at an oil outlet of an oil tank on the oil outlet pipeline, and a third oil filling pump and a third motor which are arranged at an oil outlet of the automobile gearbox on the oil return pipeline.
Preferably, the power unit is provided with a standby pump set, the standby pump set comprises a second oil injection pump and a second motor, and the second oil injection pump and the second motor are connected with the first oil injection pump and the first motor in parallel and are connected to the oil outlet pipeline.
Preferably, an oil inlet of the first oil filling pump in the oil tank is provided with a first oil suction filter, and an oil inlet of the second oil filling pump in the oil tank is provided with a second oil suction filter.
Preferably, the detection element includes a pressure gauge, a pressure sensor, a temperature sensor, and a liquid level sensor.
Preferably, the first pressure gauge is arranged on a first pressure gauge switch, the first pressure gauge switch is arranged at an oil outlet of the first oil injection pump, the second pressure gauge is arranged on a second pressure gauge switch, the second pressure gauge switch is arranged at an oil outlet of the second oil injection pump, the first pressure sensor and the second pressure sensor are arranged at the front and back positions of the proportional pressure regulating valve on the oil outlet pipeline, and the first temperature sensor, the second temperature sensor and the liquid level sensor are arranged on the oil tank.
Preferably, the control element unit comprises a normally open electromagnetic ball valve, a proportional pressure regulating valve, a speed regulating valve, a one-way valve and a normally closed electromagnetic ball valve.
Preferably, the normally open electromagnetic ball valve is installed at an oil outlet on the oil outlet pipeline, the air source is connected with the normally closed electromagnetic ball valve, and the normally closed electromagnetic ball valve is connected to the oil outlet pipeline between the electromagnetic ball valve and the oil outlet through an air transmission pipeline; the proportional pressure regulating valve is arranged at the oil outlet end of the oil injection pump on the oil conveying pipeline, the first speed regulating valve, the second speed regulating valve and the third speed regulating valve are arranged on the oil outlet pipeline and the branch pipeline, the oil outlet of the first oil injection pump is provided with a first one-way valve, the oil outlet of the second oil injection pump is provided with a second one-way valve, and the third one-way valve is arranged on the oil conveying pipeline between the module and the automobile gearbox.
Due to the adoption of the technical problem, the utility model has the characteristics of as follows and effect:
the utility model discloses automobile transmission performance test oiling hydraulic system's gearbox oil can carry out thermostatic control, can simulate high temperature environment, and the oil pressure of pouring into the gearbox can be along with the rotational speed of gearbox and the automatic compensation changes, and it has the characteristics that provide stable pressure, temperature, flow.
Drawings
Fig. 1 is a schematic diagram of the hydraulic system of the present invention.
In the figure, 1, a fuel tank, 201, a first oil absorption filter, 202, a second oil absorption filter, 3, a fuel filling port, 4, a visual liquid level meter, 501, a first fuel pump, 502, a second fuel pump, 503, a third fuel pump, 601, a first motor, 602, a second motor, 603, a third motor, 7, a normally open electromagnetic ball valve 8, a proportional pressure regulating valve, 901, a first speed regulating valve, 902, a second speed regulating valve, 903, a third speed regulating valve, 1001, a first high pressure filter, 1002, a second high pressure filter, 1101, a first pressure meter switch, 1102, a second pressure meter switch, 1201, a first pressure meter, 1202, a second pressure meter, 13, a valve block, 1401, a first check valve, 1402, a second check valve, 1403, a third check valve, 1501, a first pressure sensor, 1502, a second pressure sensor, 1601, a first temperature sensor, 1602, a second temperature sensor, 17, a liquid level sensor, 18, a cooler, 19, a heater, 20, a normally closed electromagnetic ball valve, 21, a circulating pump, 22 and an electric cabinet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model discloses experimental oiling hydraulic system of motor transmission performance structure is as follows: the oil tank 1 is provided with an oil filling port 3, the oil temperature control unit is connected with the oil tank 1 and consists of a heater 19 arranged in the oil tank 1, a circulating pump 21 communicated with the oil tank 1 through a pipeline and a cooler 18, and the circulating pump 21 is communicated with the cooler 18 through a pipeline; the oil tank 1 is communicated with an automobile gearbox through an oil conveying pipeline, a power unit, a detection element unit and a control element unit are arranged on the oil conveying pipeline, and the electric cabinet is electrically connected with the power unit, the detection element unit and the control element unit. The oil tank 1 is provided with a visual liquid level meter 4. The outer shell of the oil tank 1 is provided with a heat-insulating layer.
The oil conveying pipeline is divided into two paths, one path is an oil outlet pipeline, the other path is an oil return pipeline, a valve block 13 is arranged on the oil outlet pipeline, and two branch pipelines are arranged between the valve block 13 and the automobile gearbox. A first high-pressure filter 1001 is arranged on the oil outlet pipeline, and a second high-pressure filter 1002 is arranged on the oil return pipeline.
The power unit comprises a pump set, a first oil filling pump 501 and a first motor 601 which are arranged at an oil outlet of an oil tank on an oil outlet pipeline, a third oil filling pump 503 and a third motor 603 which are arranged at an oil outlet of an automobile gearbox on the oil outlet pipeline, a standby pump set is arranged for ensuring the safety of an oil transportation system in the test process, the standby pump set comprises a second oil filling pump 502 and a second motor 602, and the second oil filling pump 502 and the second motor 602 are connected with the first oil filling pump 501 and the first motor 601 in parallel and are connected into the oil outlet pipeline.
A first oil suction filter 201 is arranged at an oil inlet of a first oil filling pump 501 in the oil tank 1, and a second oil suction filter 202 is arranged at an oil inlet of a second oil filling pump 502 in the oil tank 1.
The detection element comprises a pressure gauge, a pressure sensor, a temperature sensor and a liquid level sensor. The first pressure gauge 1201 is arranged on a first pressure gauge switch 1101, the first pressure gauge switch 1101 is arranged at an oil outlet of the first oil filling pump 501, the second pressure gauge 1202 is arranged on a second pressure gauge switch 1102, the second pressure gauge switch 1102 is arranged at an oil outlet of the second oil filling pump 502, the first pressure sensor 1501 and the second pressure sensor 1502 are arranged in front and at back of the proportional pressure regulating valve 8 on the oil outlet pipeline, and the first temperature sensor 1601, the second temperature sensor 1602 and the liquid level sensor 17 are arranged on an oil tank.
The control element unit comprises a normally open electromagnetic ball valve, a proportional pressure regulating valve, a speed regulating valve, a one-way valve and a normally closed electromagnetic ball valve. Wherein the normally open electromagnetic ball valve 7 is installed at the oil outlet on the oil outlet pipeline, the air source is connected with the normally closed electromagnetic ball valve 20, and the normally closed electromagnetic ball valve 20 is connected to the oil outlet pipeline between the electromagnetic ball valve 7 and the oil outlet through the air transmission pipeline. The proportional pressure regulating valve 8 is arranged at the oil outlet end of the oil injection pump on the oil conveying pipeline, a first speed regulating valve 901, a second speed regulating valve 902 and a third speed regulating valve 903 are arranged on the oil outlet pipeline and the branch pipeline, a first one-way valve 1401 is arranged at the oil outlet of the first oil injection pump 501, a second one-way valve 1402 is arranged at the oil outlet of the second oil injection pump 502, and a third one-way valve 1403 is arranged on the oil conveying pipeline between the module 13 and the automobile gearbox.
The electric cabinet 22 is connected with the first motor 601, the second motor 602, the third motor 603 and the circulating pump 21 of the power unit through cables; the electric cabinet 22 is connected with the proportional pressure regulating valve 8, the electromagnetic valve 7 and the electromagnetic valve 20 of the control unit through cables; the electric cabinet 22 is connected to the first temperature sensor 1601, the second temperature sensor 1602, the liquid level sensor 17, the first pressure sensor 1501, and the second pressure sensor 1502 of the detection unit by cables.
The first oil injection pump 501, the second oil injection pump and the third oil injection pump 503 adopt oil injection pumps with the model number of YCB 1.6-0.6; the normally-open electromagnetic ball valve 7 adopts a model ZQDF-2-K-DN15 electromagnetic ball valve; the proportional pressure regulating valve 8 is a model ZDDP-DN 15 pressure regulating valve; the normally closed electromagnetic ball valve 20 is a model ZQDF-2 electromagnetic ball valve; the circulating pump 21 is model 25WBS 2-8-0.25.
The power unit part comprises: the mode that a 750W motor drives the oil injection pump is adopted, and as long-time tests are required, the oil injection pump and the motor adopt a one-use one-standby mode; the oil injection pump adopts a high-performance metal seal gear pump which can resist high temperature and has high performance; a control element unit section: the safety pressure switch of the pump is provided with the highest pressure of the pump, the proportional pressure regulating valve can set the pressure according to the rotating speed of the gearbox, the flow valve can set the flow, and the electromagnetic valve can control the on-off of oil supply; an oil temperature control unit: pumping high-temperature gearbox oil from an oil tank to an air cooler through a circulating pump, cooling, filtering through a filter, and returning to the oil tank; heating the gearbox oil through a heater; the oil tank and the oil pipe are subjected to heat preservation treatment through a heat preservation layer structure; a detection element unit: the pressure transmitter and the pressure gauge arranged at the outlet of the pipeline can realize pressure detection, the temperature sensor can realize temperature detection, and the liquid level sensor can realize liquid level detection; the electric control box arranged on the hydraulic system can realize manual and automatic control of the starting and stopping of each motor, and controls the output pressure through each sensor and a program command; the pressure and temperature parameter number can be displayed; the system can accurately control the oil pressure, flow and temperature of the gearbox input into the gearbox.
The utility model discloses a working process and theory of operation as follows:
before use, the oil in the transmission tank is injected into the oil tank 1 with the heat preservation function, the liquid level in the oil tank 1 can be detected in real time through the liquid level sensor 17, the power is switched on, a temperature point starting button is arranged on the electric cabinet, the system enters an automatic heating constant temperature state, the oil tank stops heating when the temperature reaches a set temperature, the system automatically starts the circulating pump 21 when the temperature is higher than the set temperature, and hot oil is pumped out of the oil tank 1 and is cooled by the cooler 18 and then returns to the oil tank 1. The function realizes the constant temperature control of the temperature. The temperature detection is realized by a temperature sensor arranged on the oil tank; heating is achieved by means of a heater 19; cooling is achieved by means of a circulation pump 21 and a cooler 18.
After the temperature reaches the set temperature, a first motor 601 is started to drive a first oiling pump 501, and the variable speed oil in the oil tank sequentially passes through the following elements and is firstly injected into a first one-way valve 1401, wherein the first one-way valve is an element for protecting the pump to prevent the return flow of the variable speed oil; the first oil pump 501 has a pressure regulating function, and the set pressure is detected and displayed through a first pressure gauge 1201 arranged on a first pressure gauge switch 1101; then the speed changing oil is divided into two paths through a valve block, wherein one path of the speed changing oil enters an oil filling port of the gearbox through a proportional pressure regulating valve 8, a first pressure sensor 1501, a first speed regulating valve 901 (for regulating the required maximum flow), a first high-pressure filter 1001 and a normally open electromagnetic ball valve 7; here, the proportional pressure regulating valve 8 and the first pressure sensor 1501 form closed-loop control, after the required pressure is set on the electric cabinet, the PLC gives an analog quantity value of 4-20mA to the proportional valve, the proportional pressure regulating valve 8 adjusts the opening degree through the analog quantity value, so as to adjust the pressure value, the outlet pressure is transmitted to the PLC through the sensor, the set value is compared with the detected value, if the pressure is greater than the set value, the output is reduced, and if the pressure is less than the set value, the output is increased; after the gearbox oil enters the gearbox test bench, the required oil pressure is different along with the continuous increase of the rotating speed of a speed changing system, different pressures can be flexibly set during different rotating speed tests according to a rotating speed pressure data table planned in advance, and stable pressure output is realized through the pressure closed loop; since the first speed regulating valve 901 is a mechanical speed regulating valve and has a pressure compensation function, the flow volume after the flow volume is set does not change with the pressure volume, so that a stable flow volume output function is realized. When the first oil filling pump fails, the second oil filling pump can be started, the working principle is the same as that described above, and the description is not repeated. The oil return line is used for pumping oil in the gearbox back to the oil tank.
The other path of oil enters the second speed regulating valve 901 and the third speed regulating valve 903 through the second one-way valve 1402, and the two paths are used for lubricating the test equipment; second pressure sensor 1502 may detect the pressure of the pump output; when a stop key is pressed after the test is finished, the normally closed electromagnetic ball valve 20 is electrified, the normally open electromagnetic ball valve 7 is electrified, and compressed air enters the gearbox through the normally closed electromagnetic ball valve 20 to clean gearbox oil in the transmission box.
Claims (10)
1. Experimental oiling hydraulic system of motor transmission performance, it includes oil tank (1), oil filler hole (3), its characterized in that oil temperature control unit with oil tank (1) is connected, and oil temperature control unit comprises heater (19), circulating pump (21) and cooler (18) through pipeline and oil tank (1) intercommunication in setting up in oil tank (1), through the pipeline intercommunication between circulating pump (21) and cooler (18), and oil tank (1) is through defeated oil pipe way and motor transmission intercommunication, is provided with power pack on the defeated oil pipe way, detecting element unit, controlling element unit, electric cabinet and power pack, detecting element unit, controlling element unit electricity are connected.
2. The oiling hydraulic system for the automobile gearbox performance test according to claim 1 is characterized in that a visual liquid level meter (4) is arranged on the oil tank (1), and an insulating layer is arranged on the outer shell of the oil tank (1).
3. The oil injection hydraulic system for the automobile gearbox performance test according to claim 1, characterized in that the oil delivery pipeline is divided into two paths, one path is an oil outlet pipeline, the other path is an oil return pipeline, a valve block (13) is arranged on the oil outlet pipeline, two branch pipelines are arranged between the valve block (13) and the automobile gearbox, a first high-pressure filter (1001) is arranged on the oil outlet pipeline, and a second high-pressure filter (1002) is arranged on the oil return pipeline.
4. The hydraulic system for testing the oiling of the automobile gearbox performance according to the claim 1 is characterized in that the power unit is composed of a pump group, a first oiling pump (501) and a first motor (601) which are arranged at the oil outlet of the oil tank on the oil outlet pipeline, and a third oiling pump (503) and a third motor (603) which are arranged at the oil outlet of the automobile gearbox on the oil outlet pipeline.
5. The oiling hydraulic system for the automobile gearbox performance test according to claim 4 is characterized in that the power unit is provided with a standby pump set, the standby pump set comprises a second oiling pump (502) and a second motor (602), and the second oiling pump (502) and the second motor (602) are connected with a first oiling pump (501) and a first motor (601) in parallel to enter a oil outlet pipeline.
6. The automotive transmission performance test oiling hydraulic system according to claim 4, characterized in that the oil inlet of the first oiling pump (501) in the oil tank (1) is provided with a first oil suction filter (201), and the oil inlet of the second oiling pump (502) in the oil tank (1) is provided with a second oil suction filter (202).
7. The hydraulic system for testing the oiling of the transmission performance of the automobile according to claim 1, wherein the detecting elements comprise a pressure gauge, a pressure sensor, a temperature sensor and a liquid level sensor.
8. The hydraulic system for oiling for vehicle transmission performance test of claim 7, wherein the first pressure gauge (1201) is installed on a first pressure gauge switch (1101), the first pressure gauge switch (1101) is arranged at the oil outlet of the first oiling pump (501), the second pressure gauge (1202) is installed on a second pressure gauge switch (1102), the second pressure gauge switch (1102) is arranged at the oil outlet of the second oiling pump (502), the first pressure sensor (1501) and the second pressure sensor (1502) are installed at the front and back positions of the proportional pressure regulating valve (8) on the oil outlet pipeline, and the first temperature sensor (1601), the second temperature sensor (1602) and the liquid level sensor (17) are installed on the oil tank.
9. The automotive transmission performance test oiling hydraulic system according to claim 1, characterized in that the control element unit comprises a normally open electromagnetic ball valve (7), a proportional pressure regulating valve (8), a speed regulating valve, a one-way valve and a normally closed electromagnetic ball valve (20).
10. The automotive transmission performance test oiling hydraulic system according to claim 9, characterized in that the normally open electromagnetic ball valve (7) is installed at an oil outlet on an oil outlet pipeline, an air source is connected with the normally closed electromagnetic ball valve (20), and the normally closed electromagnetic ball valve (20) is connected to the oil outlet pipeline between the electromagnetic ball valve (7) and the oil outlet through an air transmission pipeline; the proportional pressure regulating valve (8) is arranged at the oil outlet end of an oil injection pump on an oil conveying pipeline, a first speed regulating valve (901), a second speed regulating valve (902) and a third speed regulating valve (903) are arranged on the oil outlet pipeline and a branch pipeline, the oil outlet of the first oil injection pump (501) is provided with a first one-way valve (1401), the oil outlet of the second oil injection pump (502) is provided with a second one-way valve (1402), and the third one-way valve is arranged on the oil conveying pipeline between a valve block (13) and an automobile gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222663654.5U CN218294057U (en) | 2022-10-11 | 2022-10-11 | Oil injection hydraulic system for automobile gearbox performance test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222663654.5U CN218294057U (en) | 2022-10-11 | 2022-10-11 | Oil injection hydraulic system for automobile gearbox performance test |
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| Publication Number | Publication Date |
|---|---|
| CN218294057U true CN218294057U (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222663654.5U Active CN218294057U (en) | 2022-10-11 | 2022-10-11 | Oil injection hydraulic system for automobile gearbox performance test |
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2022
- 2022-10-11 CN CN202222663654.5U patent/CN218294057U/en active Active
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