Visual simulation method for verifying the lubrication performance of motor and motor oil circuit

Abstract

A visual simulation motor and a method for verifying the lubrication performance of a motor oil circuit, the visual simulation motor comprising: a transparent cover plate, a transparent front cover, an oil seal, a transparent rear cover, a motor shaft, a pinion assembly and an idler assembly, the transparent cover plate, the transparent front cover and the transparent rear cover are connected in sequence, a gear set mounting portion is provided on the side of the transparent front cover close to the transparent cover plate, an oil seal mounting portion is provided on the side of the transparent front cover close to the transparent rear cover, the gear set mounting portion has a first cavity, the pinion assembly and the idler assembly are arranged in the first cavity, and the pinion assembly and the idler assembly are meshed and connected, the motor shaft passes through the transparent rear cover and the transparent front cover in sequence and is connected to the pinion assembly, the oil seal mounting portion has a second cavity, and the oil seal is arranged in the second cavity. The above-mentioned visual simulation motor and the method for verifying the lubrication performance of the motor oil circuit can simulate and verify the gear-driven starting and generating integrated motor, and improve the safety of the gear-driven starting and generating integrated motor.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a visual simulation motor and a method for verifying the lubrication performance of a motor oil circuit. Background Art

[0002] Hybrid vehicles are a new generation of clean vehicles with low fuel consumption and low pollution. They are an effective combination of traditional internal combustion engines and electric vehicles. Gear-driven starter generator integrated motors are the best way to reduce fuel consumption and pollution with minimal changes to existing vehicle structures. However, gear-driven starter generator integrated motors are different from traditional generators and IBSG (Belt-Driven Starter Generator, a belt-driven integrated machine that takes into account both starting and generating electricity) products. The front end of the gear-driven starter generator integrated motor needs to be placed in the gearbox oil, and at the same time, the gear-driven starter generator integrated motor is required to achieve the functions of starting, generating electricity and pure electric. Therefore, the motor needs to ensure that the gearbox oil cannot enter the motor body during rotation to prevent the loss of the gearbox oil, and prevent the gearbox oil from entering the motor body and causing the IP (INGRESS PROTECTION, protection level system) protection function of the motor to fail, affecting the normal rotation of the stator and rotor and causing damage to electronic components.

[0003] In order to ensure the lubrication performance of the gear-driven starting and generating integrated motor, the lubrication performance of the motor needs to be verified. In addition, in order to ensure the rotation accuracy of the bearing and avoid the failure of the bearing grease at low temperature to cause damage to the motor, the bearing performance of the motor needs to be verified. At the same time, in order to avoid problems such as corrosion or pitting of the gears that cause damage to the transmission system of the motor and the gearbox, and cause problems such as torque fluctuation of the whole vehicle and ECU error of the whole vehicle, the gear performance of the motor needs to be verified. However, traditional gear-driven starting and generating integrated motors are all metal shells, and it is impossible to observe the lubrication of the motor oil seal, visualize the flow state of the motor oil circuit lubricating oil, and verify the lubrication performance of the motor oil circuit. At the same time, it is impossible to observe the operating state of the bearings and gears, and it is impossible to verify the bearing performance and gear performance, and thus it is impossible to judge whether there is a risk in the application of the motor on the whole vehicle. Therefore, it is urgent to provide a visual simulation motor to verify the motor oil circuit lubrication performance, bearing performance verification and gear performance verification of the gear-driven starting and generating integrated motor. Summary of the invention

[0004] One purpose of the present invention is to propose a visual simulation motor to overcome the technical problem in traditional technology that it is impossible to verify the oil circuit lubrication performance, bearing performance and gear performance of the gear-driven starting and generating integrated motor.

[0005] Another object of the present invention is to propose a method for verifying the lubrication performance of a motor oil circuit, so as to overcome the technical problem in the traditional technology that it is impossible to verify the lubrication performance of the oil circuit of a gear-driven starting and generating integrated motor.

[0006] To achieve this object, on the one hand, the present invention adopts the following technical solutions:

[0007] A visual simulation motor comprises: a transparent cover plate, a transparent front cover, an oil seal, a transparent rear cover, a motor shaft, a pinion assembly and an idler assembly, wherein the transparent cover plate, the transparent front cover and the transparent rear cover are connected in sequence, a gear set mounting portion is provided on the side of the transparent front cover close to the transparent cover plate, an oil seal mounting portion is provided on the side of the transparent front cover close to the transparent rear cover, the gear set mounting portion has a first cavity, the pinion assembly and the idler assembly are arranged in the first cavity, and the pinion assembly and the idler assembly are meshed and connected, the motor shaft passes through the transparent rear cover and the transparent front cover in sequence and is connected to the pinion assembly, the oil seal mounting portion has a second cavity, and the oil seal is arranged in the second cavity.

[0008] In one embodiment, the transparent front cover is provided with an oil inlet hole, which is connected to the first cavity and the second cavity respectively, and the oil seal mounting portion is provided with an oil outlet hole, which is connected to the second cavity.

[0009] In one embodiment, the visual simulation motor further includes an oil outlet pipe and a collecting container, the oil outlet pipe is connected to the oil seal mounting portion, the oil outlet pipe is communicated with the oil outlet hole, and the collecting container is connected to the oil outlet pipe.

[0010] In one embodiment, the transparent front cover is a flange structure.

[0011] In one embodiment, an observation hole is provided on the transparent rear cover.

[0012] In one embodiment, the visual simulation motor also includes an oil inlet pipe, the transparent cover has a first oil circuit and a second oil circuit that are interconnected, and a pinion oil supply hole and an idler oil supply hole are provided on the transparent cover, the oil inlet pipe is connected to the transparent cover, and the oil inlet pipe is connected to the first oil circuit, the idler oil supply hole is respectively connected to the first oil circuit and the first cavity, and the pinion oil supply hole is respectively connected to the second oil circuit and the first cavity.

[0013] In one embodiment, the visual simulation motor also includes a front bearing and a bearing cover plate, the front bearing is arranged between the motor shaft and the transparent front cover, the bearing cover plate is arranged in the second cavity, the bearing cover plate is respectively connected to the front bearing and the transparent front cover, and the bearing cover plate is arranged between the oil seal and the transparent front cover.

[0014] In one of the embodiments, the visual simulation motor further includes a sealing ring, and the sealing ring is arranged between the transparent front cover and the bearing cover plate.

[0015] In one embodiment, the visual simulation motor further includes a rear bearing, and the rear bearing is disposed between the motor shaft and the transparent rear cover.

[0016] On the other hand, the present invention also provides a method for verifying the lubrication performance of the motor oil circuit of the visual simulation motor based on any one of the above, comprising the following steps:

[0017] Start the visual simulation motor and input the transmission oil;

[0018] Observe the flow direction of the transmission oil and the lubrication condition of the oil seal, collect the transmission oil that enters the oil seal, and calculate the flow rate of the transmission oil that enters the oil seal;

[0019] The motor oil circuit lubrication performance is obtained based on the observed and calculated transmission oil flow entering the oil seal.

[0020] The above-mentioned visual simulation motor is designed according to the structure of the gear transmission starting and generating integrated motor, and the cover plate, front cover and rear cover are all designed to be transparent, so that the flow direction of the gearbox oil and the lubrication of the oil seal can be observed in real time when the visual simulation motor is running. For example, it can be very intuitive to see whether the gearbox oil has entered the motor, how it has entered the motor, and whether the oil seal is leaking, so that the motor oil circuit lubrication performance can be obtained according to the observed lubrication conditions. At the same time, the state of the bearing when the motor shaft is running at high speed can be observed, and the bearing performance can be judged according to the observed situation, such as whether the grease will condense at low temperature, and the motor damage and abnormal noise caused by this problem; the deformation and strength of the idler shaft under the action of the gear can also be intuitively seen, as well as the state of gear meshing and the influence of the gear on the direction of the lubricating oil during operation, so as to obtain the gear performance. Further, the above-mentioned visual simulation motor can also be used in scenes such as teaching demonstration and exhibition intuitive display, and has a wide range of applications. In addition, the above-mentioned visual simulation motor omits the motor rotor mover and other structures, and the device structure is simple and the cost is low.

[0021] In summary, the above-mentioned visual simulation motor can verify the oil circuit lubrication performance of the gear-driven starting and generator integrated motor. At the same time, it can also verify the bearing performance and gear performance of the gear-driven starting and generator integrated motor, which helps to improve the safety of the gear-driven starting and generator integrated motor. The device has a simple structure, low cost, and a wide range of applications, which helps to save the cost of motor performance verification.

[0022] The above-mentioned motor oil circuit lubrication performance verification method can verify the oil circuit lubrication performance of the gear transmission starting generator integrated motor by applying the above-mentioned visual simulation motor, which helps to improve the safety of the gear transmission starting generator integrated motor and has low verification cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural explosion diagram of a visual simulation motor;

[0024] Figure 2 is a schematic structural diagram of a transparent front cover in one direction in an embodiment;

[0025] Figure 3 is a schematic structural diagram of a transparent front cover in another direction in an embodiment;

[0026] Figure 4 It is a schematic diagram of the structure of a transparent cover plate in an embodiment. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0028] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] Please also see Figures 1 to 4The visual simulation motor of an embodiment includes a transparent cover plate 10, a transparent front cover 20, an oil seal 30, a transparent rear cover 50, a motor shaft 60, a pinion assembly 70 and an idler assembly 80. The transparent cover plate 10, the transparent front cover 20 and the transparent rear cover 50 are connected in sequence. A gear assembly mounting portion 21 is provided on the side of the transparent front cover 10 close to the transparent cover plate 20. An oil seal mounting portion 22 is provided on the side of the transparent front cover 20 close to the transparent rear cover 50. The gear assembly mounting portion 21 has a first cavity. The pinion assembly 70 and the idler assembly 80 are arranged in the first cavity, and the pinion assembly 70 and the idler assembly 80 are meshed and connected. The motor shaft 60 passes through the transparent rear cover 50 and the transparent front cover 20 in sequence and is connected to the pinion assembly 70. The oil seal mounting portion 22 has a second cavity, and the oil seal 30 is arranged in the second cavity.

[0030] The above-mentioned visual simulation motor is designed according to the structure of the gear transmission starting and generating integrated motor, and the cover plate, front cover and rear cover are all designed to be transparent, so that the flow direction of the gearbox oil and the lubrication of the oil seal 30 can be observed in real time when the visual simulation motor is running. For example, it can be very intuitive to see whether the gearbox oil has entered the motor, how it has entered the motor, and whether the oil seal 30 is leaking, so that the motor oil circuit lubrication performance can be obtained according to the observed lubrication conditions. At the same time, the state of the bearing when the motor shaft is running at high speed can be observed, and the bearing performance can be judged according to the observed situation, such as whether the grease will condense at low temperature, and the motor damage and abnormal noise caused by this problem; the deformation and strength of the idler shaft under the action of the gear can also be intuitively seen, as well as the state of the gear meshing and the influence of the gear on the direction of the lubricating oil during operation, and the gear performance can be obtained. Further, the above-mentioned visual simulation motor can also be used in scenes such as teaching demonstration and exhibition intuitive display, and has a wide range of applications. In addition, the above-mentioned visual simulation motor omits the motor rotor mover and other structures, and the device structure is simple and the cost is low.

[0031] In one embodiment, the front cover 20 is provided with an oil inlet 23, which is communicated with the first cavity and the second cavity respectively; the oil seal mounting portion 22 is provided with an oil outlet, which is communicated with the second cavity; the oil outlet pipe 40 is connected to the oil seal mounting portion 22, and the oil outlet pipe 40 is communicated with the oil outlet. In this embodiment, the oil outlet is provided on the oil seal mounting portion 22, and the oil outlet pipe 40 can be connected to collect the transmission oil entering the oil seal 30, so that the flow rate of the transmission oil entering the oil seal 30 can be calculated, and the oil circuit lubrication performance of the motor can be quantitatively analyzed. The less time is consumed to collect a unit volume of oil, the greater the flow rate of the transmission oil, and the better the lubrication condition.

[0032] In one embodiment, the visual simulation motor further includes an oil outlet pipe 40 and a collection container (not shown), the collection container is connected to the oil outlet pipe 40, and the collection container is used to collect the transmission oil entering the oil seal 30. Specifically, in one embodiment, in order to accurately record the amount of transmission oil entering the oil seal 30, the collection container can be, but is not limited to, a measuring cup. Furthermore, in one embodiment, in order to further facilitate the observation of the lubrication performance of the oil seal 30, the oil outlet pipe 40 uses a transparent hose.

[0033] In one embodiment, the transparent front cover 20 is a flange structure. Further, in one embodiment, the transparent front cover 20 omits the water channel design. Designing the transparent front cover 20 as a flange structure and omitting the water channel can further simplify the structure of the visual simulation motor, save the device cost, and facilitate observation of the internal components.

[0034] In one embodiment, an observation hole 51 is provided on the transparent rear cover 50. The observation hole 51 provided on the transparent rear cover 50 can further facilitate observation of the flow of the transmission oil to the lubrication condition of the oil seal. Specifically, in one embodiment, there are multiple observation holes 51, which are spaced apart along the circumference of the transparent rear cover 50.

[0035] In one embodiment, the visual simulation motor further includes a front bearing 61 and a bearing cover plate 62. The front bearing 61 is arranged between the motor shaft 60 and the transparent front cover 20. The bearing cover plate 62 is arranged in the second cavity. The bearing cover plate 62 is connected to the front bearing 61 and the transparent front cover 20 respectively, and the bearing cover plate 62 is arranged between the oil seal 30 and the transparent front cover 20. Specifically, in this embodiment, by arranging the front bearing 61 between the motor shaft 60 and the transparent front cover 20, the motor shaft 60 can be ensured to rotate smoothly. The front bearing 61 is fixed to the transparent front cover 20 through the bearing cover plate 62, and the installation is stable and reliable. Further, the bearing cover plate 62 is arranged between the oil seal 30 and the transparent front cover 20. In one embodiment, the bearing cover plate 62 and the transparent front cover 20 are fastened and connected by bolts, and the bearing cover plate 62 and the oil seal 30 are connected by interference fit.

[0036] In one embodiment, the visual simulation motor further includes a sealing ring 63, which is disposed between the transparent front cover 30 and the bearing cover plate 62. The sealing ring 63 can improve the sealing performance of the connection between the transparent front cover 30 and the bearing cover plate 62 to avoid oil leakage.

[0037] In one embodiment, to further ensure smooth rotation of the motor shaft 60 , the visual simulation motor further includes a rear bearing 64 , which is disposed between the motor shaft 60 and the transparent rear cover 50 .

[0038] In one embodiment, the pinion gear assembly 70 includes a pinion gear 71, a pinion gear fixing bolt 72 and a stop washer 73. The pinion gear 71 is sleeve-connected to the motor shaft 60. The stop washer 73 is arranged between the pinion gear 71 and the front bearing 61. The pinion gear fixing bolt 72 passes through the pinion gear 71 and is fixedly connected to the motor shaft 60.

[0039] In one embodiment, the idler assembly 80 includes an idler shaft 81, an idler wheel 82, a thrust bearing 83 and an idler shaft fixing bolt 84. The idler shaft 81 is made of steel, and a split design is adopted between the idler shaft 81 and the transparent front cover 20. The idler shaft 81 is fixedly connected to the transparent front cover 20 through the idler shaft fixing bolt 84. The idler wheel 82 is sleeved on the outside of the idler shaft 81, and the idler wheel 82 is meshed with the pinion 71. The thrust bearing 83 passes through the idler wheel 82 and is fixedly connected to the idler shaft 81. Furthermore, the idler shaft 81 is a hollow shaft, which is used to fix the idler wheel 82 and has a lubricating oil channel, which can inject the input transmission oil into the idler wheel 82 to lubricate and cool the idler wheel 82.

[0040] In one embodiment, the transparent cover plate 10, the transparent front cover 20 and the transparent rear cover 30 are all made of PC transparent material, organic glass material or polymer transparent material. Further, in one embodiment, the visual simulation motor is connected to a workbench (such as a stand) through the transparent front cover 20. To improve the installation stability of the visual simulation motor, a mounting seat made of steel material is provided at the bottom of the transparent front cover 20.

[0041] In one embodiment, the transparent cover plate 10 and the transparent front cover 20 are fastened by bolts. Furthermore, in one embodiment, an adhesive layer is provided between the transparent cover plate 10 and the transparent front cover 20, and the transparent cover plate 10 and the transparent front cover 20 are connected by adhesive to further improve the sealing performance of the connection between the transparent cover plate 10 and the transparent front cover 20, thereby avoiding oil leakage.

[0042] In one embodiment, the visual simulation motor also includes an oil inlet pipe (not shown), the transparent cover plate 10 has a first oil circuit 11 and a second oil circuit 12 which are interconnected, and a pinion oil supply hole and an idler oil supply hole are opened on the transparent cover plate 10, the oil inlet pipe is connected to the transparent cover plate 10, and the oil inlet pipe is connected to the first oil circuit 11, the idler oil supply hole is respectively connected to the first oil circuit 11 and the first cavity, and the pinion oil supply hole is respectively connected to the second oil circuit 12 and the first cavity.

[0043] Specifically, a portion of the transmission oil that enters the first oil circuit 11 through the oil inlet pipe is transported to the idler shaft 81 through the idler oil supply hole for cooling and lubricating the idler 82; another portion of the transmission oil that enters the first oil circuit 11 is transported to the meshing position of the pinion 71 and the idler 82 through the second oil circuit 12 through the pinion oil supply hole for cooling and lubricating the pinion 71 and the idler 82. Further, in the process of visual simulation of the operation of the motor, the oil droplets are brought to the position of the oil inlet hole 23 through the rotation of the pinion 71 and the idler 82, and then the transmission oil will flow into the second cavity through the oil inlet hole 23 to lubricate the oil seal 30; finally, the transmission oil that enters the oil seal 30 flows out through the oil outlet hole and is led out through the oil outlet pipe 40 to a collection container such as a measuring cup for collection. Furthermore, the flow rate of the transmission oil that enters the oil seal is quantitatively calculated by adopting the method of the time consumed to collect a unit volume of transmission oil. The less time consumed to collect a unit volume of oil, the greater the flow rate of the transmission oil, and the better the lubrication.

[0044] The above-mentioned visual simulation motor can verify the oil circuit lubrication performance of the gear-driven starting and generator integrated motor. At the same time, it can also verify the bearing performance and gear performance of the gear-driven starting and generator integrated motor, which helps to improve the safety of the gear-driven starting and generator integrated motor. The device has a simple structure, low cost, and a wide range of applications, which helps to save the cost of motor performance verification.

[0045] On the other hand, the present invention also provides a method for verifying the lubrication performance of the motor oil circuit of the visual simulation motor based on any one of the above items, comprising the following steps:

[0046] S11: Start the visual simulation motor and input the transmission oil.

[0047] Specifically, before starting the visual simulation motor, the debugging settings of parameters such as the rotation speed of the motor shaft 60, the flow rate of the oil inlet pipe and the temperature of the gearbox oil are preset.

[0048] S12: Observe the flow direction of the transmission oil and the lubrication condition of the oil seal, collect the transmission oil entering the oil seal, and calculate the flow rate of the transmission oil entering the oil seal.

[0049] Specifically, in one embodiment, after the transmission oil flow stabilizes, the flow rate of the transmission oil entering the oil seal is quantitatively calculated by using the method of collecting the time consumed by a unit volume of transmission oil. The less time consumed to collect a unit volume of oil, the greater the flow rate of the transmission oil and the better the lubrication condition.

[0050] S13: Obtaining the lubrication performance of the motor oil circuit according to the observed situation and the calculated flow rate of the transmission oil entering the oil seal.

[0051] Specifically, the lubrication performance of the motor oil circuit is obtained by comprehensively considering the observed conditions (e.g., the direction of the transmission oil flow, whether the oil seal is leaking, etc.) and the calculated flow rate of the transmission oil entering the oil seal. In one embodiment, the flow rate of the transmission oil obtained in step S12 can also be compared with the preset transmission oil flow rate to more accurately judge the lubrication performance of the motor oil circuit. For example, if the flow rate of the transmission oil obtained in step S12 is greater than or equal to the preset transmission oil flow rate, the lubrication performance of the motor oil circuit is good; if the flow rate of the transmission oil obtained in step S12 is less than the preset transmission oil flow rate, the lubrication performance of the motor oil circuit does not meet the standard and needs to be further improved and debugged.

[0052] The above-mentioned motor oil circuit lubrication performance verification method can verify the oil circuit lubrication performance of the gear transmission starting generator integrated motor by applying the above-mentioned visual simulation motor, which helps to improve the safety of the gear transmission starting generator integrated motor and has low verification cost.

[0053] Furthermore, in one embodiment, after step S13, the process further includes modifying one or more parameters such as the rotation speed of the motor shaft 60, the flow rate of the oil inlet pipe, and the temperature of the gearbox oil, and then repeating steps S11 to S13. Specifically, by modifying the test parameters, multiple verifications under different operating conditions can be performed, which can improve the verification accuracy, help further improve the safety of the gear-driven starting and generating integrated motor, and the verification operation is simple and convenient.

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A visual simulation motor, characterized in that: include: A transparent cover plate, a transparent front cover, an oil seal, a transparent rear cover, a motor shaft, a pinion assembly and an idler assembly, wherein the transparent cover plate, the transparent front cover and the transparent rear cover are connected in sequence, a gear set mounting portion is provided on the side of the transparent front cover close to the transparent cover plate, an oil seal mounting portion is provided on the side of the transparent front cover close to the transparent rear cover, the gear set mounting portion has a first cavity, the pinion assembly and the idler assembly are arranged in the first cavity, and the pinion assembly and the idler assembly are meshed and connected, the motor shaft passes through the transparent rear cover and the transparent front cover in sequence and is connected to the pinion assembly, the oil seal mounting portion has a second cavity, and the oil seal is arranged in the second cavity; The pinion gear assembly comprises a pinion gear, a pinion gear fixing bolt and a stop washer, the pinion gear is sleeve-connected with the motor shaft, the stop washer is arranged between the pinion gear and the front bearing, and the pinion gear fixing bolt passes through the pinion gear and is fixedly connected with the motor shaft; The idler assembly comprises an idler shaft, an idler wheel, a thrust bearing and an idler shaft fixing bolt, the idler shaft is made of steel, the idler shaft and the transparent front cover are designed in a split type, the idler shaft is fixedly connected to the transparent front cover via the idler shaft fixing bolt, the idler wheel is sleeved on the outside of the idler shaft, the idler wheel is meshed with the pinion, and the thrust bearing passes through the idler wheel and is fixedly connected to the idler shaft; An oil outlet hole is provided on the oil seal mounting portion.

2. The visual simulation motor according to claim 1, characterized in that: The transparent front cover is provided with an oil inlet hole, the oil inlet hole is communicated with the first cavity and the second cavity respectively, and the oil outlet hole is communicated with the second cavity.

3. The visual simulation motor according to claim 1, characterized in that: The visual simulation motor further includes an oil outlet pipe and a collecting container. The oil outlet pipe is connected to the oil seal mounting portion and communicates with the oil outlet hole. The collecting container is connected to the oil outlet pipe.

4. The visual simulation motor according to claim 1, characterized in that: The transparent front cover is a flange structure.

5. The visual simulation motor according to claim 1, characterized in that: An observation hole is provided on the transparent rear cover.

6. The visual simulation motor according to claim 1, characterized in that: The visual simulation motor also includes an oil inlet pipe, the transparent cover has a first oil circuit and a second oil circuit that are interconnected, and a pinion oil supply hole and an idler oil supply hole are opened on the transparent cover, the oil inlet pipe is connected to the transparent cover, and the oil inlet pipe is connected to the first oil circuit, the idler oil supply hole is respectively connected to the first oil circuit and the first cavity, and the pinion oil supply hole is respectively connected to the second oil circuit and the first cavity.

7. The visual simulation motor according to claim 1, characterized in that: The visual simulation motor also includes the front bearing and a bearing cover plate, wherein the front bearing is arranged between the motor shaft and the transparent front cover, the bearing cover plate is arranged in the second cavity, the bearing cover plate is respectively connected to the front bearing and the transparent front cover, and the bearing cover plate is arranged between the oil seal and the transparent front cover.

8. The visual simulation motor according to claim 7, characterized in that: The visual simulation motor further includes a sealing ring, which is arranged between the transparent front cover and the bearing cover plate.

9. The visual simulation motor according to claim 1, characterized in that: The visual simulation motor further includes a rear bearing, which is arranged between the motor shaft and the transparent rear cover.

10. A method for verifying the lubrication performance of the motor oil circuit of the visual simulation motor according to any one of claims 1 to 9, characterized in that: The following steps are involved: Start the visual simulation motor and input the transmission oil; Observe the flow direction of the transmission oil and the lubrication condition of the oil seal, collect the transmission oil that enters the oil seal, and calculate the flow rate of the transmission oil that enters the oil seal; The motor oil circuit lubrication performance is obtained based on the observed and calculated transmission oil flow entering the oil seal.

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