Test tool for motor oil pump

Abstract

The invention provides a motor oil pump testing tool, and belongs to the technical field of testing tools, the motor oil pump testing tool comprises a front tool, a rear tool and a mechanical pump, the front tool is provided with an oil pump station, a clutch station and an oil pump oil outlet, the rear tool and the front tool are oppositely arranged, the rear tool is provided with an oil inlet and a clutch oil outlet, and the mechanical pump is arranged on the front tool. The mechanical pump is arranged between the front tool and the rear tool, the mechanical pump is provided with an oil pump pressurization assembly, a clutch pressurization assembly and an oil suction port, and the whole set of testing tool can restore the actual working process of the oil pump motor and the clutch motor under the actual vehicle working condition, so that fatigue testing is conducted on the oil pump motor and the clutch motor; compared with a traditional method of testing by using a gearbox or a speed reducer, the testing tool is small in size, and synchronous testing of more stations can be carried out in a limited space.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of test tooling, and relates to a test tooling for a motor oil pump. BACKGROUND

[0002] As a key executive element in a power transmission system, a motor oil pump is often used to provide lubricating oil pressure for a gearbox or control the engagement and separation of a clutch. In order to ensure the reliability and performance stability of the motor oil pump under actual working conditions, functional tests, including the detection of oil pressure establishment ability, flow output characteristics, response speed and durability, need to be performed before the motor oil pump is shipped.

[0003] At present, the test of a composite motor oil pump device of an oil pump motor and a clutch motor is usually performed by using a gearbox or a speed reducer.

[0004] In summary, although some existing technical solutions solve the problem of detecting the oil pump motor and the clutch motor, the problem that the gearbox and the speed reducer cannot be used for multi-station detection in a limited space still has a large room for improvement. SUMMARY

[0005] The application aims to solve the above problems in the prior art and provides a test tooling for a motor oil pump, which comprises:

[0006] A front tooling, which is provided with an oil pump station, a clutch station and an oil pump oil outlet, the oil pump station is used for placing an oil pump motor, and the clutch station is used for placing a clutch motor;

[0007] A rear tooling, which is arranged opposite to the front tooling, the rear tooling is provided with an oil inlet and a clutch oil outlet;

[0008] A mechanical pump, which is arranged between the front tooling and the rear tooling, the mechanical pump is provided with an oil pump pressure boosting assembly, a clutch pressure boosting assembly and an oil suction port, the oil suction port is communicated with the oil inlet, the oil pump oil outlet is communicated with the oil suction port through the oil pump pressure boosting assembly, and the clutch oil outlet is communicated with the oil suction port through the clutch pressure boosting assembly;

[0009] After the oil pump motor is placed in the oil pump station, the output shaft of the oil pump motor is connected with the oil pump pressure boosting assembly, and after the clutch motor is placed in the clutch station, the output shaft of the clutch motor is connected with the clutch pressure boosting assembly.

[0010] In the above test tooling for a motor oil pump, the mechanical pump is provided with an oil inlet cavity, an oil pump oil outlet cavity and a clutch oil outlet cavity, the oil inlet cavity is communicated with the oil suction port, the oil pump oil outlet cavity is communicated with the oil pump oil outlet, and the clutch oil outlet cavity is communicated with the clutch oil outlet.

[0011] In the aforementioned test fixture for an electric motor oil pump, the oil pump boosting assembly includes an inner oil pump boosting rotor and an oil pump boosting ring. The inner oil pump boosting rotor meshes with the oil pump boosting ring, and the inner oil pump boosting rotor is used to connect to the output shaft of the oil pump motor.

[0012] In the aforementioned test fixture for an electric motor oil pump, the clutch booster assembly includes a clutch booster inner rotor and a clutch booster ring. The clutch booster inner rotor meshes with the clutch booster ring, and the clutch booster inner rotor is used to connect to the output shaft of the clutch motor.

[0013] The aforementioned test fixture for an electric motor oil pump also includes an oil pump outlet regulating component, which is located at the oil pump outlet and is used to regulate the oil pressure or flow rate at the oil pump outlet.

[0014] The aforementioned test fixture for an electric motor oil pump also includes a clutch oil outlet regulating component, which is disposed at the clutch oil outlet and is used to regulate the oil pressure or flow rate at the clutch oil outlet.

[0015] The aforementioned test fixture for an electric motor oil pump also includes an oil tank, which has a receiving cavity in which the front fixture, the rear fixture, and the mechanical pump are all housed.

[0016] The aforementioned test fixture for an electric motor oil pump also includes a base, which is disposed in the receiving cavity. The front fixture, the rear fixture, and the mechanical pump are all placed on the base. The base is provided with a bottom oil port, and the oil inlet is aligned with the bottom oil port.

[0017] In the aforementioned test fixture for an electric motor oil pump, the front fixture is further provided with a mounting hole and a fixing member, which is used to pass through the through holes on the oil pump motor and the clutch motor before connecting to the mounting hole.

[0018] The aforementioned testing fixture for an electric motor oil pump also includes a mounting component. The front fixture is provided with a first mounting part, and the rear fixture is provided with a second mounting part. The mechanical pump is provided with a mounting through hole, and the mounting component passes through the second mounting part and the mounting through hole in sequence to connect with the first mounting part.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The complete set of testing fixtures can reproduce the actual working process of the oil pump motor and clutch motor under real vehicle conditions, thereby conducting fatigue tests on the oil pump motor and clutch motor. Compared with the traditional testing using gearbox or reducer, this testing fixture is small in size and can perform simultaneous testing of more stations in a limited space.

[0021] 2. The oil inlet chamber, oil pump outlet chamber, and clutch outlet chamber not only serve as channels for the flow of lubricating oil, but also have a certain volume capacity in their structural design. This provides sufficient temporary storage and buffer space for lubricating oil, effectively alleviating insufficient oil supply or pressure fluctuations caused by sudden increases in demand. This ensures that the entire hydraulic system achieves continuous, stable, and uniform lubricating oil supply and discharge during the testing period.

[0022] 3. The oil tank not only serves as a storage container for lubricating oil, but also constructs a closed, controllable, and repeatable hydraulic circulation system. The circulating oil enables the entire test system to undergo long-term, stable, and efficient repeated verification under conditions close to the actual vehicle operating environment.

[0023] 4. Lifting the front and rear tooling and the mechanical pump can keep the external structure of the front and rear tooling and the mechanical pump clean and dry, which facilitates daily observation, maintenance, disassembly and replacement, reduces operational difficulties and pollution spread caused by oil accumulation, and extends the service life of key components. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention.

[0025] Figure 2 This is an exploded view of the mechanical pump of the present invention.

[0026] Figure 3 This is a schematic diagram of the tooling structure of the present invention.

[0027] Figure 4 This is a top view of the tooling after the tooling of this invention has been hidden.

[0028] In the picture:

[0029] 1. Front tooling; 11. Oil pump station; 12. Clutch station; 13. Oil pump outlet; 14. Mounting hole; 15. First mounting part; 2. Rear tooling; 21. Oil inlet; 22. Clutch outlet; 23. Second mounting part; 3. Mechanical pump; 31. Oil pump booster assembly; 311. Oil pump booster inner rotor; 312. Oil pump booster ring; 32. Clutch booster assembly; 321. Clutch booster inner rotor; 322. Clutch booster ring; 33. Suction port; 34. Oil inlet chamber; 35. Oil pump outlet chamber; 36. Clutch outlet chamber; 37. Mounting through hole; 4. Oil tank; 41. Receiving cavity; 5. Base; 51. Bottom oil port; 6. Mounting parts. Detailed Implementation

[0030] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0032] Furthermore, in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two elements or the interaction between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0035] The specific embodiments described herein are merely illustrative examples of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the present invention or exceeding the scope defined by the appended claims.

[0036] like Figures 1-4 As shown, a test fixture for an electric motor oil pump includes: a front fixture 1, a rear fixture 2, and a mechanical pump 3.

[0037] The front tooling 1 is provided with an oil pump station 11, a clutch station 12 and an oil pump outlet 13. The oil pump station 11 is used to place the oil pump motor and the clutch station 12 is used to place the clutch motor.

[0038] The rear tooling 2 is arranged opposite to the front tooling 1, and the rear tooling 2 is provided with an oil inlet 21 and a clutch oil outlet 22.

[0039] The mechanical pump 3 is located between the front tooling 1 and the rear tooling 2. The mechanical pump 3 is equipped with an oil pump booster assembly 31, a clutch booster assembly 32 and an oil suction port 33. The oil suction port 33 is connected to the oil inlet 21. The oil pump outlet 13 is connected to the oil suction port 33 through the oil pump booster assembly 31. The clutch outlet 22 is connected to the oil suction port 33 through the clutch booster assembly 32.

[0040] After the oil pump motor is placed at the oil pump station 11, the output shaft of the oil pump motor is connected to the oil pump booster assembly 31. After the clutch motor is placed at the clutch station 12, the output shaft of the clutch motor is connected to the clutch booster assembly 32.

[0041] Specifically, after the oil pump motor and clutch motor are installed on the front fixture 1, the output shaft of the oil pump motor drives the oil pump booster assembly 31, and the output shaft of the clutch motor drives the clutch booster assembly 32 to make the lubricating oil be drawn in from the oil suction port 33 and discharged from the oil pump outlet 13 and the clutch outlet 22. This is used to simulate the oil pump motor lubricating the transmission or gearbox and driving the clutch to discharge oil when the vehicle is working.

[0042] In this embodiment, the entire testing fixture can reproduce the actual working process of the oil pump motor and clutch motor under real vehicle conditions, thereby conducting fatigue tests on the oil pump motor and clutch motor. Compared with the traditional testing using a gearbox or reducer, this testing fixture is small in size and can perform simultaneous testing at more stations in a limited space.

[0043] like Figures 1-4 As shown, based on the above embodiment, the mechanical pump 3 is provided with an oil inlet chamber 34, an oil pump outlet chamber 35, and a clutch outlet chamber 36. The oil inlet chamber 34 is connected to the oil suction port 33, the oil pump outlet chamber 35 is connected to the oil pump outlet 13, and the clutch outlet chamber 36 is connected to the clutch outlet 22.

[0044] Specifically, the mechanical pump 3 is equipped with an independent yet coordinated hydraulic flow channel system. The oil inlet chamber 34 can maintain a stable liquid level and pressure during the oil suction process, avoiding cavitation or dry suction due to a sudden increase in suction flow. The oil pump outlet chamber 35 and the clutch outlet chamber 36 briefly accumulate and equalize the pressure of the high-pressure oil, ensuring a stable flow of lubricating oil output from the oil pump outlet 13 and the clutch outlet 22.

[0045] In this embodiment, the oil inlet chamber 34, the oil pump outlet chamber 35, and the clutch outlet chamber 36 not only serve as channels for the flow of lubricating oil, but also have a certain volume capacity in their structural design. This provides sufficient temporary storage and buffer space for lubricating oil, effectively alleviating insufficient oil supply or pressure fluctuations caused by a sudden increase in demand, thereby ensuring that the entire hydraulic system achieves continuous, stable, and uniform lubricating oil supply and discharge during the test cycle.

[0046] like Figures 1-4 As shown, based on the above embodiment, the oil pump booster assembly 31 includes an oil pump booster inner rotor 311 and an oil pump booster ring 312. The oil pump booster inner rotor 311 meshes with the oil pump booster ring 312, and the oil pump booster inner rotor 311 is used to connect to the output shaft of the oil pump motor.

[0047] Specifically, the inner rotor 311 of the oil pump booster meshes with the output shaft of the oil pump motor. The inner rotor 311 of the oil pump booster has an external gear structure, and the oil pump booster ring 312 is sleeved on the outer circumference of the inner rotor 311 of the oil pump booster. It has an internal gear ring structure. The rotational power of the output shaft of the oil pump motor is transmitted to the oil pump booster ring 312 through the inner rotor 311 of the oil pump booster.

[0048] In this embodiment, the lubricating oil in the oil inlet chamber 34 is compressed by the oil pump booster inner rotor 311 and the oil pump booster ring 312 and then discharged into the oil pump outlet chamber 35. This realistically simulates the oil supply behavior of the oil pump motor driven gear pair to the lubrication system during vehicle operation, providing a highly realistic working environment for testing and ensuring that the test results have practical engineering application value.

[0049] like Figures 1-4 As shown, based on the above embodiment, the clutch booster assembly 32 includes a clutch booster inner rotor 321 and a clutch booster ring 322. The clutch booster inner rotor 321 meshes with the clutch booster ring 322, and the clutch booster inner rotor 321 is used to connect to the output shaft of the clutch motor.

[0050] Specifically, the clutch booster inner rotor 321 meshes with the output shaft of the clutch motor. The clutch booster inner rotor 321 has an external gear structure, and the clutch booster ring 322 is sleeved on the outer circumference of the clutch booster inner rotor 321 and has an internal gear ring structure. The rotational power of the output shaft of the clutch motor is transmitted to the clutch booster ring 322 through the clutch booster inner rotor 321.

[0051] In this embodiment, the lubricating oil in the oil inlet chamber 34 is compressed by the clutch booster inner rotor 321 and the clutch booster ring 322 and then discharged into the clutch outlet chamber 36. This realistically simulates the oil supply behavior of the clutch motor-driven gear pair to the lubrication system during vehicle operation, providing a highly realistic working environment for testing and ensuring that the test results have practical engineering application value.

[0052] like Figures 1-4 As shown, based on the above embodiment, an oil pump outlet regulating component (not shown in the figure) is also included. The oil pump outlet regulating component is disposed at the oil pump outlet 13 and is used to regulate the oil pressure or flow rate of the oil pump outlet 13.

[0053] In this embodiment, the oil pump outlet regulating component dynamically adjusts the flow resistance of the oil by changing its internal flow cross-sectional area. Through the flexible adjustment function of the oil pump outlet regulating component, a high degree of reproduction of the complex working conditions of the real vehicle is achieved.

[0054] like Figures 1-4 As shown, based on the above embodiment, a clutch oil outlet regulating component (not shown in the figure) is also included. The clutch oil outlet regulating component is disposed at the clutch oil outlet 22 and is used to regulate the oil pressure or flow rate of the clutch oil outlet 22.

[0055] In this embodiment, the clutch oil outlet regulating component dynamically adjusts the flow resistance of the oil by changing its internal flow cross-sectional area. Through the flexible adjustment function of the clutch oil outlet regulating component, a high degree of reproduction of the complex working conditions of the real vehicle is achieved.

[0056] like Figures 1-4 As shown, based on the above embodiment, it also includes an oil tank 4, which is provided with a receiving cavity 41, in which the front tooling 1, the rear tooling 2 and the mechanical pump 3 are all accommodated.

[0057] Specifically, the receiving cavity 41 stores an appropriate amount of special lubricating oil. When the oil pump motor starts and drives the mechanical pump 3 to work, the lubricating oil is drawn into the oil inlet cavity 34 from the receiving cavity 41 through the oil inlet 21. Then, it enters the oil pump booster assembly 31 and the clutch booster assembly 32 for pressurization. The pressurized oil is discharged from the oil pump outlet 13 and the clutch outlet 22 into the receiving cavity 41, completing one complete oil cycle.

[0058] In this embodiment, the oil tank 4 not only serves as a storage container for lubricating oil, but also constructs a closed, controllable, and repeatable hydraulic circulation system. The circulating oil enables the entire test system to undergo long-term, stable, and efficient repeated verification under conditions close to the actual vehicle operating environment.

[0059] like Figures 1-4 As shown, based on the above embodiment, it also includes a base 5, which is disposed in the receiving cavity 41. The front tooling 1, the rear tooling 2, and the mechanical pump 3 are all placed on the base 5. The base 5 is provided with a bottom oil port 51, and the oil inlet 21 is aligned with the bottom oil port 51.

[0060] Specifically, the base 5 serves as the basic support structure for the entire testing device, thereby lifting the front tooling 1, the rear tooling 2, and the mechanical pump 3 as a whole above the oil surface in the receiving cavity 41, ensuring that its main structure does not directly contact the lubricating oil at the bottom of the receiving cavity 41.

[0061] In this embodiment, lifting the front tooling 1, the rear tooling 2, and the mechanical pump 3 can keep the external structure of the front tooling 1, the rear tooling 2, and the mechanical pump 3 clean and dry, which facilitates daily observation, maintenance, disassembly and replacement, reduces operational difficulties and pollution spread caused by oil accumulation, and extends the service life of key components.

[0062] like Figures 1-4 As shown, based on the above embodiment, the front tooling 1 is also provided with a mounting hole 14 and a fixing member (not shown in the figure). The fixing member is used to pass through the through holes on the oil pump motor and the clutch motor and then connect to the mounting hole 14.

[0063] In this embodiment, the fixing component is a screw, and the mounting hole 14 is a threaded hole. The fixing bracket passes through the through holes on the oil pump motor and the clutch motor and then is threadedly connected to the mounting hole 14, which ensures that the oil pump motor and the clutch motor are in a stable position and facilitates disassembly.

[0064] like Figures 1-4 As shown, based on the above embodiment, it also includes a mounting component 6. The front tooling 1 is also provided with a first mounting part 15, the rear tooling 2 is provided with a second mounting part 23, the mechanical pump 3 is provided with a mounting through hole 37, and the mounting component 6 passes through the second mounting part 23 and the mounting through hole 37 in sequence to connect with the first mounting part 15.

[0065] Specifically, the mounting part 6 is a screw, and the first mounting part 15 is a threaded hole. During assembly, the mounting part 6 passes through the second mounting part 23 and the mounting through hole 37 in sequence and is screwed into the first mounting part 15 to achieve a firm fixation of the mechanical pump 3.

[0066] In this embodiment, the fixing structure ensures that the mechanical pump 3 is accurately positioned and firmly connected during operation, effectively preventing vibration and loosening. At the same time, the mechanical pump 3 can be quickly removed by simply unscrewing the screws, which greatly facilitates daily maintenance, fault diagnosis or replacement of the entire pump.

Claims

1. A testing fixture for an electric motor oil pump, characterized in that, include: The front fixture is equipped with an oil pump station, a clutch station, and an oil pump outlet. The oil pump station is used to place the oil pump motor, and the clutch station is used to place the clutch motor. The rear tooling is positioned opposite the front tooling, and the rear tooling is provided with an oil inlet and a clutch oil outlet. A mechanical pump is disposed between the front tooling and the rear tooling. The mechanical pump is provided with an oil pump booster assembly, a clutch booster assembly and an oil suction port. The oil suction port is connected to the oil inlet. The oil pump outlet is connected to the oil suction port through the oil pump booster assembly. The clutch outlet is connected to the oil suction port through the clutch booster assembly. After the oil pump motor is placed in the oil pump station, the output shaft of the oil pump motor is connected to the oil pump booster assembly. After the clutch motor is placed in the clutch station, the output shaft of the clutch motor is connected to the clutch booster assembly.

2. The testing fixture for an electric motor oil pump as described in claim 1, characterized in that: The mechanical pump is provided with an oil inlet chamber, an oil pump outlet chamber, and a clutch outlet chamber. The oil inlet chamber is connected to the oil suction port, the oil pump outlet chamber is connected to the oil pump outlet, and the clutch outlet chamber is connected to the clutch outlet.

3. The testing fixture for an electric motor oil pump as described in claim 1, characterized in that: The oil pump booster assembly includes an inner rotor and a booster ring. The inner rotor meshes with the booster ring and is used to connect to the output shaft of the oil pump motor.

4. The testing fixture for an electric motor oil pump as described in claim 1, characterized in that: The clutch booster assembly includes a clutch booster inner rotor and a clutch booster ring. The clutch booster inner rotor meshes with the clutch booster ring, and the clutch booster inner rotor is used to connect to the output shaft of the clutch motor.

5. The testing fixture for an electric motor oil pump as described in claim 2, characterized in that: It also includes an oil pump outlet regulating component, which is disposed at the oil pump outlet and is used to regulate the oil pressure or flow rate at the oil pump outlet.

6. The testing fixture for an electric motor oil pump as described in claim 2, characterized in that: It also includes a clutch oil outlet regulating component, which is disposed at the clutch oil outlet and is used to regulate the oil pressure or flow rate at the clutch oil outlet.

7. The testing fixture for an electric motor oil pump as described in claim 1, characterized in that: It also includes an oil tank, which has a receiving cavity in which the front tooling, the rear tooling, and the mechanical pump are all housed.

8. The testing fixture for an electric motor oil pump as described in claim 7, characterized in that: It also includes a base, which is disposed in the receiving cavity. The front tooling, the rear tooling and the mechanical pump are all placed on the base. The base is provided with a bottom oil port, and the oil inlet is aligned with the bottom oil port.

9. The testing fixture for an electric motor oil pump as described in claim 1, characterized in that: The front tooling is also provided with mounting holes and includes a fixing member, which is used to pass through the through holes on the oil pump motor and the clutch motor before connecting to the mounting holes.

10. The testing fixture for an electric motor oil pump as described in claim 1, characterized in that: It also includes mounting components. The front tooling is provided with a first mounting part, and the rear tooling is provided with a second mounting part. The mechanical pump is provided with a mounting through hole. The mounting component passes through the second mounting part and the mounting through hole in sequence to connect with the first mounting part.

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