Transmission part lubrication test device, system and method

Abstract

The invention relates to the technical field of transmission part tests, in particular to a transmission part lubrication test device, system and method. The device comprises a base, a centrifugal acceleration device is rotatably connected to the top end of the base, angle adjusting mechanisms are slidably connected to the two ends of the centrifugal acceleration device, sample driving mechanisms are fixedly connected to the angle adjusting mechanisms, angle sensors are further arranged on the angle adjusting mechanisms, and cameras are detachably connected to the sample driving mechanisms; the system comprises the device and an upper computer. The method comprises the steps of inputting information such as the vehicle speed, the acceleration, the driving road surface state and the turning state on the upper computer, adjusting the initial angle, judging the acceleration state in each direction, judging the change state of the acceleration, judging whether the input rotating speed of a tested sample is changed or not, and taking corresponding measures. The problem that in the prior art, the dynamic working condition lubrication state of a real vehicle cannot be accurately simulated, so that the test result deviates or verification is insufficient is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission component testing, and in particular to a transmission component lubrication testing device, system and method. Background Art

[0002] With the development of China's automobile industry, people have put forward higher requirements for indicators such as energy consumption, driving quality, and product reliability. Transmission products such as transmissions, new energy reducers, and drive axles are important components of the chassis and even the power output of the whole vehicle. Their performance and reliability will affect the driving quality and even the safety of the whole vehicle; and the lubrication system is one of the most important systems of transmission components. Its performance directly affects the reliability and energy consumption performance of transmission products. Lubrication bench test is the most important test in the development process of transmission products. How to accurately simulate the lubrication conditions in transmission products under various actual vehicle conditions to determine the rationality of structural design and refueling amount is the most fundamental purpose of lubrication test.

[0003] Traditional lubrication test devices achieve pitch angle and roll angle simulation mostly through static or quasi-static liquid level simulation, and simulate the deflection of the internal liquid level of the transmission product during the operation of the vehicle by changing the installation angle of the test sample. Among them, the lubrication test for pitch angle adjustment simulates the liquid level of the whole vehicle under uphill and downhill conditions, and the lubrication test for roll angle adjustment simulates the liquid level of the whole vehicle under left and right slope conditions. The angle adjustment mechanism of the test device is mostly a worm gear or hydraulic pneumatic cylinder structure, and the adjustment method is mostly manual or automatic control of single-axis rotation. After the test bench angle is changed, it is locked to perform static working condition tests or dynamic working condition tests with a slow angle change rate. It is impossible to truly simulate the actual lubrication conditions inside the test sample under the influence of dynamic acceleration, especially the splash lubrication conditions under the conditions of non-static tilt of the liquid level and acceleration changes under the complex dynamic conditions of the whole vehicle.

[0004] CN113959713B discloses a test device and a test method for lubrication test of transmission parts, wherein the test device for lubrication test of transmission parts includes: a flip assembly, including a mounting platform and an adjustment assembly, a transmission part is arranged on the mounting platform, the adjustment assembly is configured to be able to adjust the pitch angle of the transmission part forward and backward, and is also configured to be able to adjust the roll angle of the transmission part left and right; a hot and cold all-in-one machine, which can heat or cool the transmission part to change the temperature of the oil in the transmission part; a drive assembly, which is arranged on the flip assembly and its output end is connected to the rotating shaft of the transmission part; a camera, which is arranged directly opposite to the observation window of the transmission part; and a control module, which is electrically connected to the adjustment assembly, the hot and cold all-in-one machine and the drive assembly respectively. However, the prior art still cannot truly simulate the actual lubrication condition inside the test sample under the influence of dynamic acceleration.

[0005] CN207095855U provides a test device for automobile transmission lubrication test, which consists of a device stand, a flip plate, a large turbine worm mechanism, a sample connection device, an inclination sensor, a small turbine worm mechanism and a sample drive mechanism; the flip plate is hinged at both ends on the device stand on both sides, and a flip single plate with turbine teeth is provided below it as a large turbine in the large turbine worm mechanism; the sample connection device supports and connects the sample to be tested; the small turbine in the small turbine worm mechanism is coaxially connected to the shell of the sample, and the inclination sensor is installed on the sample connection device; the sample drive mechanism is coaxially connected to the sample to drive the sample to rotate at high speed. However, this prior art also cannot truly simulate the actual lubrication condition inside the sample under the influence of dynamic acceleration. Summary of the invention

[0006] The purpose of the present invention is to provide a transmission component lubrication test device, system and method, which can simulate the static and dynamic lubrication states of the transmission product under steady-state and dynamic driving conditions at various angles of an actual vehicle according to test requirements; and solve the problem that the prior art cannot accurately simulate the lubrication state of the actual vehicle under dynamic conditions, especially the curvature and fluctuation of the liquid surface caused by acceleration or centrifugal force, which leads to deviations in test results or insufficient verification.

[0007] The present invention provides the following solution

[0008] A transmission component lubrication test device comprises a base, the top of the base is rotatably connected to a centrifugal acceleration device, both ends of the centrifugal acceleration device are slidably connected to an angle adjustment mechanism, a sample driving mechanism is fixedly connected to the angle adjustment mechanism, an angle sensor is also provided on the angle adjustment mechanism, and a camera is detachably connected to the sample driving mechanism.

[0009] Furthermore, the centrifugal acceleration device includes a flat plate, and a centrifugal drive device is fixedly connected to the middle part of the upper surface of the flat plate, and the centrifugal drive device includes a shell, which is fixedly connected to the flat plate, and a driving gear and a transmission gear group are accommodated inside the shell, and a driving motor is connected to the driving gear, and the driving motor is arranged at a position corresponding to the driving gear on the outer top surface of the shell, and an output shaft is fixedly connected to the transmission gear group; a circular accommodating chamber is arranged at the top of the base, and a planetary gear train structure is fixedly connected in the accommodating chamber, and the large gear ring of the planetary gear train structure is fixedly connected to the inner side wall of the accommodating chamber, and the center wheel of the planetary gear train structure is fixedly connected to the output shaft, and the output shaft passes through the top surface of the accommodating chamber and is connected to the transmission gear group; two parallel slide rails are respectively provided at both ends of the upper surface of the flat plate, and the slide rails are slidably connected to the angle adjustment mechanism.

[0010] The centrifugal accelerator is a mechanical structure designed based on the theory of rotational centrifugal force. It generates centrifugal acceleration to simulate the acceleration during the driving process of an actual vehicle. The use of a planetary gear train structure can achieve high-power transmission in a smaller volume, with low operating noise and long service life. The two ends of the plate are slidingly connected with angle adjustment mechanisms, and the mechanical structure is symmetrically distributed, which can not only balance the centrifugal acceleration, but also carry out two different working condition tests at the same time at both ends of the plate, greatly improving the test efficiency.

[0011] Furthermore, the angle adjustment mechanism includes a sliding plate, both sides of the bottom surface of the sliding plate are slidably connected to the two sliding rails at one end of the flat plate, the top surface of the sliding plate is rotatably connected to a pitch bracket, the pitch bracket is rotatably connected to a sample bracket, and the sample drive mechanism is fixedly connected to the sample bracket.

[0012] The angle adjustment mechanism can adjust the magnitude of the centrifugal acceleration by sliding the sliding plate on the flat plate. Through the coordinated adjustment of the pitch bracket and the sample bracket, the 360° installation angle adjustment of the test sample in all directions without dead angles can be achieved, and driving conditions at various angles can be simulated.

[0013] Furthermore, a motor screw device is fixedly connected to the middle part of the bottom surface of the sliding plate; the motor of the motor screw device is fixedly connected to the upper surface of the flat plate, the nut seat of the motor screw device is fixedly connected to the bottom surface of the sliding plate, the motor drive of the motor screw device is connected to a screw, and the screw is threadedly connected to the nut seat.

[0014] The sliding distance of the sliding plate on the slide rail can be electrically controlled through the motor screw device, and can also be locked and fixed at any time.

[0015] Furthermore, the pitch bracket includes a pitch base, the bottom surface of the pitch base is rotatably connected to the top surface of the sliding plate through a motor worm gear structure, and the motor of the motor worm gear structure is fixedly connected to the sliding plate; a flip plate is pivotally connected to one side of the pitch base, and a pitch adjustment locking mechanism is provided on both sides of the free end of the flip plate, and an arc-shaped slide rail is provided at a position on the pitch base corresponding to the pitch adjustment locking mechanism along the flipping trajectory of the pitch adjustment locking mechanism, the pitch adjustment locking mechanism is lockably slidably connected to the arc-shaped slide rail, and the upper end of the arc-shaped slide rail is fixedly connected to the pitch base through a support rod; a pitch adjustment mechanism is connected between the middle part of the bottom surface of the flip plate and the pitch base.

[0016] The motor worm gear structure can electrically control the structure on the worm gear to rotate and lock it at any time, so as to adjust the angle of the sample in various directions and fix it.

[0017] Furthermore, the sample holder includes a holder bottom plate, which is rotatably connected to the flip plate via a worm gear structure; a connecting plate is fixedly connected to the top surface of the holder bottom plate, and the connecting plate is vertically arranged to the holder bottom plate, and the inner surface of the connecting plate is also rotatably connected to the sample mounting transition plate via a motor worm gear structure.

[0018] The sample installation transition plate is used to connect the outer shell of the sample to be tested.

[0019] Furthermore, a sample driving mechanism is fixedly connected to the connecting plate; the sample driving mechanism includes a sample driving motor, a bearing seat and an input flange tooling, the outer shell of the bearing seat is fixedly connected to the connecting plate, the internal central rotating shaft of the bearing seat is connected to the output shaft of the driving motor, the outer shell of the driving motor is fixedly connected to the outer shell of the bearing seat, and the input flange tooling is detachably connected to the flange-shaped interface of the central rotating shaft of the bearing seat.

[0020] Setting up the bearing seat can protect the motor and prevent processing or installation errors from causing the test piece and the motor to be installed out of center, resulting in damage to the motor; the input flange tooling is used to connect to the power input end of the test sample, and different input flange tooling can be replaced to adapt to the input ends of different test samples.

[0021] Furthermore, bearings are respectively arranged between the base and the flat plate of the centrifugal acceleration device, between the sliding plate of the angle adjustment mechanism and the pitch base of the pitch bracket, between the flip plate of the pitch bracket and the bracket bottom plate of the sample bracket, and between the connecting plate of the sample bracket and the sample mounting transition plate.

[0022] Bearings are set to reduce the resistance generated during rotation, reduce wear between machines, increase the adjustment rate and increase the service life.

[0023] A transmission component lubrication test system comprises a host computer and the above-mentioned transmission component lubrication test device. The centrifugal acceleration device, angle adjustment mechanism, sample drive mechanism, angle sensor and camera are electrically connected to the host computer respectively.

[0024] In addition to having all the advantages of the transmission component lubrication test device, the transmission component lubrication test system can use the host computer to input information such as vehicle speed, acceleration, driving road surface status and turning status, and fully automatically control the test device to perform the test, which is easy to operate, efficient and accurate.

[0025] A transmission component lubrication test method, based on the above-mentioned transmission component lubrication test system, is characterized by comprising the following steps:

[0026] S1. Input vehicle speed, acceleration, road surface conditions, turning conditions and other information on the host computer;

[0027] S2, adjusting the angle adjustment mechanism to simulate the initial angle between the sample and the ground;

[0028] S3. Determine the acceleration state in each direction: if there is no acceleration in the simulated vehicle driving process, the centrifugal acceleration device remains stationary, and the sample driving motor drives the test sample to rotate at a fixed speed;

[0029] S4. If the simulated vehicle driving process has acceleration in a certain direction, the rotation speed of the centrifugal accelerator and the distance between the sample and the rotation center of the centrifugal accelerator are adjusted to simulate the initial acceleration; the sample driving motor drives the tested sample to rotate at the initial rotation speed;

[0030] S5, determine the change state of acceleration and take corresponding measures;

[0031] S6. Determine whether the input speed of the test sample has changed and take corresponding measures;

[0032] S7, record the oil lubrication and movement conditions during the test and upload them to the host computer;

[0033] The step S2 includes determining whether the angle is adjusted properly:

[0034] If the absolute value of the difference between the actual angle and the initial angle is ≥ 0.1°, readjust the angle;

[0035] If the absolute value of the difference between the actual angle and the initial angle is less than 0.1°, the angle adjustment mechanism is locked;

[0036] The step S5 includes, if the acceleration magnitude changes, adjusting the rotation speed of the centrifugal acceleration device and the distance between the sample and the rotation center of the centrifugal acceleration device to the current acceleration magnitude;

[0037] If the acceleration direction changes, the angle adjustment mechanism is adjusted to simulate the current acceleration direction;

[0038] If the acceleration does not change, proceed directly to step S6;

[0039] The step S6 includes, if the input rotation speed of the test sample does not change, the sample driving motor drives the test sample to rotate at a fixed rotation speed;

[0040] If the input speed of the test sample changes, adjust the sample drive motor speed to the target speed.

[0041] Compared with the prior art, the present invention has the following advantages:

[0042] The transmission component lubrication test device, system and method provided by the present invention can simulate the static and dynamic lubrication states of the transmission products under steady-state and dynamic driving conditions at various angles of the actual vehicle and under acceleration in all directions according to the test needs, verify the rationality of the active oil spraying, splash lubrication, ventilation system and suction system structural design of various transmission products such as transmissions, reducers and drive axles, without the need to rely on the whole vehicle and various related assembly parts, and fully verify the transmission product assembly design in the product development stage. The equipment described in this invention patent has a compact structure, strong versatility, easy adjustment, and low maintenance cost, which can greatly shorten the product development and verification cycle and improve R&D efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Attached Figure 1 It is a structural schematic diagram of the transmission component lubrication test device of the present invention;

[0045] Attached Figure 2 It is a schematic structural cross-sectional diagram of the transmission component lubrication test device of the present invention;

[0046] Attached Figure 3 It is a schematic flow chart of the transmission component lubrication test method of the present invention.

[0047] In the figure:

[0048] 1-base, 11-accommodating chamber, 2-centrifugal acceleration device, 21-plate, 22-centrifugal drive device, 221-housing, 222-driving gear, 223-transmission gear set, 224-driving motor, 225-output shaft, 226-planetary gear train structure, 23-slide rail, 24-motor screw device, 3-angle adjustment mechanism, 31-sliding plate, 32-pitch bracket, 321-pitch base, 322-flip plate, 323-pitch adjustment locking mechanism, 324-arc slide rail, 325-support rod, 326-pitch adjustment mechanism, 33-sample bracket, 331-bracket bottom plate, 332-connecting plate, 333-sample installation transition plate, 4-sample drive mechanism, 41-sample drive motor, 42-bearing seat, 43-input flange tooling, 5-test sample. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0050] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0051] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0052] It should be understood that although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0053] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0054] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0055] It should be particularly noted that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0056] Example 1, please refer to Figure 1 and Figure 2 As shown, this embodiment provides a transmission component lubrication test device, including a base 1, a centrifugal acceleration device 2 is rotatably connected to the top of the base 1, and angle adjustment mechanisms 3 are slidably connected to the two ends of the centrifugal acceleration device 2. A sample driving mechanism 4 is fixedly connected to the angle adjustment mechanism 3, an angle sensor is also provided on the angle adjustment mechanism 3, and a camera is detachably connected to the sample driving mechanism 4.

[0057] Specifically, the centrifugal acceleration device 2 includes a flat plate 21, a centrifugal driving device 22 is fixedly connected to the middle of the upper surface of the flat plate 21, and the centrifugal driving device 22 includes a shell 221, the shell 221 is in a teardrop shape, and is fixedly connected to the flat plate 21, and a driving gear 222 and a transmission gear set 223 are accommodated inside the shell 221, and a driving motor 224 is connected to the driving gear 222, and the driving motor 224 is arranged at a corresponding position of the driving gear 222 on the top surface of the outer shell 221, and an output shaft 225 is fixedly connected to the transmission gear set 223; a circular receiving chamber 11 is arranged at the top of the base 1, and a planetary gear train structure 226 is fixedly connected to the receiving chamber 11, and the large gear ring of the planetary gear train structure 226 is fixedly connected to the inner side wall of the receiving chamber 11, and the center wheel of the planetary gear train structure 226 is connected to the output shaft 225. The output shaft 225 is fixedly connected, and the output shaft 225 passes through the top surface of the accommodating chamber 11 and is connected to the transmission gear set 223; preferably, a base 1 bearing is arranged between the base 1 and the plate 21, and the inner and outer rings of the base 1 bearing are respectively fixedly connected to the base 1 and the plate 21 to reduce the resistance generated during rotation; one end of the upper surface of the plate 21 is provided with two parallel slide rails 23, and the slide rails 23 are connected with an angle adjustment mechanism 3, and the angle adjustment mechanism 3 can slide along the slide rails 23; the other end of the upper surface of the plate 21 is provided with a counterweight block to balance the centrifugal acceleration; preferably, two parallel slide rails 23 and an angle adjustment mechanism 3 are respectively arranged at both ends of the upper surface of the plate 21, which can not only balance the centrifugal acceleration, but also can carry out two different working condition tests at the same time at both ends of the plate 21, thereby greatly improving the test efficiency.

[0058] The angle adjustment mechanism 3 includes a sliding plate 31, and both sides of the bottom surface of the sliding plate 31 are slidably connected to the two slide rails 23 at one end of the flat plate 21; a motor screw device 24 is fixedly connected to the middle of the bottom surface of the sliding plate 31 to drive the sliding plate 31 to slide along the slide rail 23; the motor of the motor screw device 24 is fixedly connected to the upper surface of the flat plate 21, and the nut seat of the motor screw device 24 is fixedly connected to the bottom surface of the sliding plate 31. The motor drives the screw to rotate and then drives the nut seat to move along the screw, thereby driving the sliding plate 31 to slide along the slide rail 23.

[0059] The top surface of the sliding plate 31 is rotatably connected to the pitch bracket 32 ​​through a motor worm gear structure, and the pitch bracket 32 ​​can be rotated 360 degrees to adjust the angle. The worm gear structure is connected to a motor, and the motor is fixedly connected to the sliding plate 31. Preferably, a bearing of the sliding plate 31 is arranged between the sliding plate 31 and the pitch bracket 32 ​​to reduce the resistance generated during rotation; the pitch bracket 32 ​​includes a pitch base 321, and a flip plate 322 is pivotally connected to one side of the pitch base 321, and the flip plate 322 can rotate around the pivot. Pitch adjustment locking mechanisms 323 are arranged on both sides of the free end of the flip plate 322, and the pitch adjustment locking mechanisms 323 are arranged on the pitch base 321 and connected to the pitch An arc-shaped slide rail 324 is provided at a position corresponding to the adjustment locking mechanism 323 along the flipping trajectory of the pitch adjustment locking mechanism 323. The pitch adjustment locking mechanism 323 is slidably connected to the arc-shaped slide rail 324. The pitch adjustment locking mechanism 323 can lock and fix the angle of the flip plate 322. The upper end of the arc-shaped slide rail 324 is fixedly connected to the pitch base 321 through a support rod 325; a pitch adjustment mechanism 326 is connected between the middle part of the bottom surface of the flip plate 322 and the pitch base 321. The flip angle of the flip plate 322 is adjusted by the pitch adjustment mechanism 326. The pitch adjustment mechanism 326 can be a retractable device such as an electric hydraulic rod.

[0060] The top surface of the flip plate 322 is rotatably connected to the sample holder 33 through a motor worm gear structure. The sample holder 33 includes a holder base plate 331. The holder base plate 331 is rotatably connected to the flip plate 322 through a worm gear structure. The top surface of the holder base plate 331 is fixedly connected to a connecting plate 332. The connecting plate 332 is vertically arranged to the holder base plate 331. The inner surface of the connecting plate 332 is also rotatably connected to a sample mounting transition plate 333 through a motor worm gear structure. The sample mounting transition plate 333 is used to connect the sample housing 221. Preferably, bearings are arranged between the flip plate 322 and the holder base plate 331 and between the connecting plate 332 and the sample mounting transition plate 333 to reduce the resistance generated during rotation.

[0061] A sample driving mechanism 4 is fixedly connected to the connecting plate 332 of the sample holder 33, and the sample driving mechanism 4 includes a sample driving motor 41, a bearing seat 42 and an input flange fixture 43; the outer shell of the bearing seat 42 is fixedly connected to the connecting plate 332, the inner central rotating shaft of the bearing seat 42 is connected to the output shaft of the driving motor 41 through a coupling or a spline, and the outer shell of the driving motor 41 is installed on the outer shell of the bearing seat 42; the input flange fixture 43 is detachably connected to the flange-shaped interface of the central rotating shaft of the bearing seat 42; the input flange fixture 43 is connected to the power input end of the test sample 5 for lubrication test, and the outer shell 221 of the test sample 5 is installed on the sample installation transition plate 333.

[0062] This embodiment also provides a transmission component lubrication test system, including a host computer and the above-mentioned transmission component lubrication test device, wherein the centrifugal acceleration device 2, the angle adjustment mechanism 3, the sample drive mechanism 4, the angle sensor and the camera are electrically connected to the host computer respectively.

[0063] Each rotating and flipping part of the angle adjustment mechanism 3 is provided with a corresponding angle sensor, which can be specifically arranged on the pitch bracket 32, the sample bracket 33 and the sample mounting transition plate 333. The measured values ​​are fed back to the host computer for detecting and judging whether the angle adjustment in each direction is in place.

[0064] A camera is detachably connected to the sample installation transition plate 333 near the installation position of the test sample 5. In this embodiment, multiple high-speed anti-shake dedicated cameras can be arranged and connected to the sample installation transition plate 333 by magnetic attraction. The data is connected to the upper computer software and data processing operations are performed. The test process can automatically identify the oil lubrication and movement conditions of each key position in the sample.

[0065] See also Figure 3 As shown, this embodiment also provides a transmission component lubrication test method, based on the above transmission component lubrication test system, comprising the following steps:

[0066] Input vehicle speed, acceleration, road surface conditions, turning conditions and other information on the host computer;

[0067] Adjust the angle adjustment mechanism 3 to simulate the initial angle between the sample and the ground;

[0068] Determine whether the angle is adjusted properly:

[0069] If the absolute value of the difference between the actual angle and the initial angle is ≥ 0.1°, readjust the angle;

[0070] If the absolute value of the difference between the actual angle and the initial angle is less than 0.1°, the angle adjustment mechanism 3 is locked;

[0071] Determine the acceleration status in each direction:

[0072] If there is no acceleration during the simulated vehicle driving process, the centrifugal acceleration device 2 remains stationary, and the sample driving motor 41 drives the test sample 5 to rotate at a fixed speed;

[0073] If the simulated vehicle driving process has acceleration in a certain direction, proceed to the next step;

[0074] The rotation speed of the centrifugal accelerator 2 and the distance between the sample and the rotation center of the centrifugal accelerator 2 are adjusted to simulate the initial acceleration;

[0075] The sample driving motor 41 drives the test sample 5 to rotate at an initial speed;

[0076] Determine the change state of acceleration and take corresponding measures:

[0077] If the magnitude of acceleration changes, the rotation speed of the centrifugal accelerator 2 and the distance between the sample and the rotation center of the centrifugal accelerator 2 are adjusted to the current magnitude of acceleration;

[0078] If the acceleration direction changes, the angle adjustment mechanism 3 is adjusted to simulate the current acceleration direction;

[0079] If the acceleration does not change, proceed directly to the next step;

[0080] Determine whether the input speed of the test sample 5 has changed and take corresponding measures:

[0081] If there is no change, the sample driving motor 41 drives the sample 5 to rotate at a fixed speed;

[0082] If there is a change, the speed of the sample drive motor 41 is adjusted to the target speed;

[0083] The oil lubrication and movement conditions during the test are recorded and uploaded to the host computer.

[0084] In this embodiment, the user inputs the actual vehicle speed and the slope and inclination angle of the road where the actual vehicle moves. The upper computer software program can perform logical calculations based on the input information to adjust the angles of the various degree-of-freedom control devices on the angle adjustment mechanism 3 and drive the corresponding adjustment devices to automatically adjust to the target position and lock before starting the test. For example, when simulating the process of the actual vehicle climbing a 15° slope at a uniform speed in a straight line, since there is no acceleration in all directions, the test equipment selects the static test mode, and the drive motor 224 of the centrifugal acceleration device 2 controls the speed to 0, that is, the plate 21 is fixed, the motor screw device 24 is fixed, and the pitch bracket 32 ​​and the sample bracket 33 of the angle adjustment mechanism 3 are jointly adjusted to adjust the pitch angle of the sample installation to 15°. After locking, the sample drive motor 41 adjusts the speed according to the vehicle speed and then conducts the test. During the test, cameras are installed on the plate 21 and each bracket position to shoot and record the lubrication status of each key part to complete the test.

[0085] When simulating the acceleration working condition test of the actual vehicle, if the direction and magnitude of the acceleration of the actual vehicle change, the magnitude of the acceleration received by the test sample 5 is adjusted by adjusting the drive motor 224 and the motor screw device 24, and the pitch and roll angles of the road surface where the test sample 5 simulates the actual vehicle are adjusted by adjusting the pitch bracket 32 ​​and the sample bracket 33. Finally, the pitch bracket 32 ​​is adjusted to simulate the direction of the acceleration received by the test sample 5.

[0086] Based on the test device, if the same adjustment mechanism is added on the other side of the flat plate 21, two different working condition simulation tests can be carried out simultaneously by adjusting the adjustment devices and mechanisms on the other side, thereby improving the test efficiency.

[0087] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A transmission component lubrication test device, characterized in that: The invention comprises a base (1), the top of the base (1) is rotatably connected to a centrifugal acceleration device (2), the two ends of the centrifugal acceleration device (2) are slidably connected to an angle adjustment mechanism (3), the angle adjustment mechanism (3) is fixedly connected to a sample driving mechanism (4), the angle adjustment mechanism (3) is also provided with an angle sensor, and the sample driving mechanism (4) is detachably connected to a camera.

2. The transmission component lubrication test device according to claim 1, characterized in that: The centrifugal acceleration device (2) comprises a plate (21), a centrifugal driving device (22) is fixedly connected to the middle of the upper surface of the plate (21), the centrifugal driving device (22) comprises a housing (221), the housing (221) is fixedly connected to the plate (21), a driving gear (222) and a transmission gear set (223) are accommodated in the housing (221), the driving gear (222) is connected to a driving motor (224), the driving motor (224) is arranged at a position on the outer top surface of the housing (221) corresponding to the driving gear (222), and the transmission gear set (223) is fixedly connected to an output shaft (22 5); a circular accommodating chamber (11) is arranged at the top of the base (1); a planetary gear train structure (226) is fixedly connected inside the accommodating chamber (11); a large gear ring of the planetary gear train structure (226) is fixedly connected to the inner wall of the accommodating chamber (11); a center wheel of the planetary gear train structure (226) is fixedly connected to the output shaft (225); the output shaft (225) passes through the top surface of the accommodating chamber (11) and is connected to the transmission gear set (223); two parallel slide rails (23) are respectively arranged at both ends of the upper surface of the flat plate (21); the slide rails (23) are slidably connected to the angle adjustment mechanism (3).

3. The transmission component lubrication test device according to claim 2, characterized in that: The angle adjustment mechanism (3) comprises a sliding plate (31), the bottom surfaces of the sliding plate (31) are slidably connected to the two slide rails (23) at one end of the flat plate (21), the top surface of the sliding plate (31) is rotatably connected to a pitch bracket (32), the pitch bracket (32) is rotatably connected to a sample bracket (33), and the sample drive mechanism (4) is fixedly connected to the sample bracket (33).

4. The transmission component lubrication test device according to claim 3, characterized in that: A motor screw device (24) is fixedly connected to the middle of the bottom surface of the sliding plate (31); the motor of the motor screw device (24) is fixedly connected to the upper surface of the flat plate (21), the nut seat of the motor screw device (24) is fixedly connected to the bottom surface of the sliding plate (31), the motor drive of the motor screw device (24) is connected to a screw, and the screw is threadedly connected to the nut seat.

5. The transmission component lubrication test device according to claim 3, characterized in that: The pitch bracket (32) comprises a pitch base (321), the bottom surface of the pitch base (321) is rotatably connected to the top surface of the sliding plate (31) via a motor worm gear structure, and the motor of the motor worm gear structure is fixedly connected to the sliding plate (31); a flip plate (322) is pivotally connected to one side of the pitch base (321), and pitch adjustment locking mechanisms (323) are provided on both sides of the free end of the flip plate (322), which are connected to the pitch base (321) and the top surface of the sliding plate (31) via a motor worm gear structure. A circular arc slide rail (324) is provided at a position corresponding to the adjustment locking mechanism (323) along the flipping track of the pitch adjustment locking mechanism (323); the pitch adjustment locking mechanism (323) and the circular arc slide rail (324) are lockably slidably connected; the upper end of the circular arc slide rail (324) is fixedly connected to the pitch base (321) via a support rod (325); and a pitch adjustment mechanism (326) is connected between the middle part of the bottom surface of the flip plate (322) and the pitch base (321).

6. The transmission component lubrication test device according to claim 5, characterized in that: The sample holder (33) comprises a holder bottom plate (331), and the holder bottom plate (331) is rotatably connected to the flip plate (322) via a worm gear structure; a connecting plate (332) is fixedly connected to the top surface of the holder bottom plate (331), and the connecting plate (332) is vertically arranged to the holder bottom plate (331), and the inner surface of the connecting plate (332) is also rotatably connected to a sample mounting transition plate (333) via a motor worm gear structure.

7. The transmission component lubrication test device according to claim 6, characterized in that: A sample driving mechanism (4) is fixedly connected to the connecting plate (332); the sample driving mechanism (4) comprises a sample driving motor (41), a bearing seat (42) and an input flange tooling (43); the outer shell of the bearing seat is fixedly connected to the connecting plate (332); the inner central rotating shaft of the bearing seat (42) is connected to the output shaft of the driving motor (41); the outer shell of the driving motor (41) is fixedly connected to the outer shell of the bearing seat (42); and the input flange tooling (43) is detachably connected to the flange-shaped interface of the central rotating shaft of the bearing seat (42).

8. The transmission component lubrication test device according to claim 6, characterized in that: Bearings are respectively arranged between the base (1) and the flat plate (21) of the centrifugal acceleration device (2), between the sliding plate (31) of the angle adjustment mechanism (3) and the pitch base (321) of the pitch bracket (32), between the flip plate (322) of the pitch bracket (32) and the bracket bottom plate (331) of the sample bracket (33), and between the connecting plate (332) of the sample bracket (33) and the sample mounting transition plate (333).

9. A transmission component lubrication test system, comprising a host computer, characterized in that: It also includes the transmission component lubrication test device as described in any one of claims 1 to 8, wherein the centrifugal acceleration device (2), the angle adjustment mechanism (3), the sample drive mechanism (4), the angle sensor and the camera are electrically connected to the host computer respectively.

10. A transmission component lubrication test method, characterized in that: The transmission component lubrication test system according to claim 9 is characterized in that it includes the following steps: S1. Input vehicle speed, acceleration, road surface conditions, turning conditions and other information on the host computer; S2, adjusting the angle adjustment mechanism (3) to simulate the initial angle between the sample and the ground; S3, determining the acceleration state in each direction: if there is no acceleration in the simulated vehicle driving process, the centrifugal acceleration device (2) remains stationary, and the sample driving motor (41) drives the test sample (5) to rotate at a fixed speed; S4, if the simulated vehicle driving process has acceleration in a certain direction, the rotation speed of the centrifugal accelerator (2) and the distance between the sample and the rotation center of the centrifugal accelerator (2) are adjusted to simulate the initial acceleration; the sample driving motor (41) drives the test sample (5) to rotate at the initial rotation speed; S5, determine the change state of acceleration and take corresponding measures; S6, determining whether the input speed of the test sample (5) has changed, and taking corresponding measures; S7, record the oil lubrication and movement conditions during the test and upload them to the host computer; The step S2 includes determining whether the angle is adjusted properly: If the absolute value of the difference between the actual angle and the initial angle is ≥ 0.1°, readjust the angle; If the absolute value of the difference between the actual angle and the initial angle is less than 0.1°, the angle adjustment mechanism (3) is locked; The step S5 comprises, if the magnitude of acceleration changes, adjusting the rotation speed of the centrifugal acceleration device (2) and the distance between the sample and the rotation center of the centrifugal acceleration device (2) to the current magnitude of acceleration; If the acceleration direction changes, the angle adjustment mechanism (3) is adjusted to simulate the current acceleration direction; If the acceleration does not change, proceed directly to step S6; The step S6 includes: if the input rotation speed of the test sample (5) does not change, the sample driving motor (41) drives the test sample (5) to rotate at a fixed rotation speed; If the input rotation speed of the test sample (5) changes, the rotation speed of the sample driving motor (41) is adjusted to the target rotation speed.

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