CN216846920U - Drive axle test device - Google Patents

Abstract

The utility model relates to a car bench test technical field discloses a drive axle test testing arrangement, and first supporting component includes first support and second support, and the one end and the first leg joint of the transaxle that awaits measuring, the other end and second leg joint. The first angle adjusting mechanism is used for adjusting the pitching angle of the drive axle to be tested, and the second angle adjusting mechanism is used for adjusting the inclination angle of the test platform. The test device for the drive axle test is reasonable in structural arrangement and small in occupied area, can simulate the lubrication test of the drive axle to be tested under the working condition of an up-down slope of a real vehicle, and can simulate the lubrication test of the drive axle to be tested under the working condition of a side-tipping of the real vehicle, so that the test efficiency is improved, the product development period can be shortened, and the production efficiency is improved. Because the mounting positions of the first support and the second support on the test platform are adjustable, the drive axle test device can be suitable for mounting drive axles to be tested with different specifications, the universality is strong, and the test cost is effectively reduced.

Description

Drive axle test testing device

Technical Field

The utility model relates to an experimental technical field of car bench especially relates to a drive axle test testing arrangement.

Background

A transaxle is a mechanism located at the end of a drive train that can vary the speed and torque from a transmission and transmit them to drive wheels. The drive axle mainly comprises a main speed reducer, a differential mechanism, a wheel transmission device, a drive axle housing and the like. The central integrated electric drive axle is one of important parts of a new energy commercial vehicle, the quality of the lubrication condition of the central integrated electric drive axle is crucial to the reliability of a product, and therefore in the product design verification process, a lubrication bench test needs to be carried out on the electric drive axle assembly in order to check whether the lubrication condition of rotating parts such as bearings and gears in the electric drive axle assembly meets the technical requirements of product design under the actual vehicle application condition.

In the prior art, in a lubricating bench test of an electric drive axle assembly, most of angle adjusting devices of the electric drive axle assembly adopt a worm and gear mechanism, and when the test of the maximum climbing gradient of a real vehicle is realized, the required worm and gear mechanism is large in size, so that the test cost is high. Meanwhile, the existing test fixture is complex in process and high in manufacturing cost, and the test fixture cannot be used universally, so that the test cost is further increased.

SUMMERY OF THE UTILITY MODEL

Based on above problem, the utility model aims to provide a drive axle test device, compact structure, it is small, can realize the analogue test under the drive axle real vehicle operating mode, and the commonality is strong, can carry out the drive axle test of different model vehicles, has reduced experimental cost.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a drive axle test device comprising:

a test platform;

the first support assembly comprises a first support and a second support, the first support and the second support are both arranged on the test platform in a position-adjustable manner, one end of a drive axle to be tested is connected with the first support, and the other end of the drive axle to be tested is connected with the second support;

the first angle adjusting mechanism is arranged on the first supporting component and used for adjusting the pitching angle of the drive axle to be measured;

the second angle adjusting mechanism is arranged below the test platform and used for adjusting the inclination angle of the test platform;

and the control measurement system is electrically connected with the drive axle to be measured and is used for controlling the drive axle to be measured to operate and measuring and acquiring test data of the drive axle to be measured.

As the utility model discloses an experimental testing arrangement of transaxle's preferred scheme, first angle guiding mechanism include with the transaxle that awaits measuring can dismantle the first adjusting plate and the second adjusting plate of connection, the one end of transaxle that awaits measuring is passed through first adjusting plate rotationally connect in first support, the other end passes through the second adjusting plate rotationally connect in the second support.

As the utility model discloses an experimental testing arrangement of transaxle preferred scheme, first support with the second support all include the bottom plate and set up in backup pad on the bottom plate, the bottom plate position install adjustably in on the test platform, be provided with the mounting groove in the backup pad, the one end of transaxle that awaits measuring is located in the mounting groove of first support, the other end is located in the mounting groove of second support.

As the utility model discloses a drive axle test testing arrangement's preferred scheme, drive axle test testing arrangement still includes first fastener, first adjusting plate with all be provided with first positioning hole on the second adjusting plate, be provided with a plurality of second positioning holes in the backup pad, first fastener is configured to pass first positioning hole and arbitrary the second positioning hole is in order to adjust the every single move angle of the drive axle that awaits measuring.

As the utility model discloses a drive axle test testing arrangement's preferred scheme, second angular adjustment mechanism includes the second supporting component and divides to locate the first lifting unit and the second lifting unit at test platform both ends, on the one end of second supporting component was fixed in the test base platform, the other end with test platform articulated, first lifting unit with second lifting unit is used for adjusting respectively the height at test platform both ends is in order to change test platform's inclination.

As the utility model discloses a drive axle test testing arrangement's preferred scheme, the second supporting component includes first pillar and the second pillar that the interval set up, first pillar with the one end of second pillar all with test platform is articulated, first pillar with the other end of second pillar all is provided with first supporting seat, first supporting seat is fixed in on the experimental base station.

As the utility model discloses an experimental testing arrangement of transaxle preferred scheme, the experimental testing arrangement of transaxle still includes first articulated shaft, test platform's bottom is provided with first connecting piece, first connecting piece with first pillar with all pass through between the second pillar first articulated shaft is articulated.

As the utility model discloses a drive axle test device's preferred scheme, first lifting unit with second lifting unit all includes telescopic machanism and second supporting seat, telescopic machanism's one end with test platform is articulated, the other end with the second supporting seat is articulated, the second supporting seat is fixed in on the experimental base station.

As the utility model discloses an experimental testing arrangement of transaxle preferred scheme, experimental testing arrangement of transaxle still includes second articulated shaft and third articulated shaft, test platform's bottom is provided with the second connecting piece, the second connecting piece with pass through between the telescopic machanism the second articulated shaft is articulated, the second supporting seat with pass through between the telescopic machanism the third articulated shaft is articulated, be provided with locking mechanism on the third articulated shaft, locking mechanism can with telescopic machanism lock in on the second supporting seat.

As the utility model discloses a drive axle test testing arrangement's preferred scheme, the last guide way that is provided with of test platform, first support with all be provided with the slider on the second support, the slider card is located in the guide way, and position in the guide way is adjustable.

The utility model has the advantages that:

the utility model provides an experimental testing arrangement of transaxle when carrying out the lubrication test of transaxle experimental, at first according to the position of the first support of specification adjustment and the second support of the transaxle that awaits measuring on experimental platform to make the interval between first support and the second support and the length of the transaxle that awaits measuring cooperate, will await measuring the one end and the first leg joint of transaxle afterwards again, the other end and second leg joint. And secondly, connecting the control measurement system with the drive axle to be measured so as to control the drive axle to be measured to operate and obtain test data of the drive axle to be measured in real time. And then, adjusting the pitching angle of the driving axle to be tested through the first angle adjusting mechanism according to the experimental design requirement, namely adjusting the rotation angle of the driving axle around the axis direction of the driving axle, so as to simulate the lubricating condition of the driving axle when the real vehicle climbs or descends. And finally, adjusting the motor rotating speed of the drive axle to be tested by controlling the measuring system, and finishing the lubrication test of the drive axle to be tested under the working condition of simulating the real vehicle up and down slopes.

After the test of the driving axle to be tested on the uphill and downhill road is completed, the inclination angle of the test platform is adjusted through the second angle adjusting mechanism, namely, the included angle between the axis of the driving axle to be tested and the horizontal plane is adjusted, so that the lubricating condition of the driving axle when the actual vehicle turns or is positioned on two sides of the road with different heights is simulated (at the moment, the vehicle can roll leftwards or rightwards). After the inclination angle of the test platform is adjusted, the test platform is fixed, and then the rotating speed of a motor of the drive axle to be tested is adjusted by controlling the measuring system, so that the lubrication test of the drive axle to be tested under the simulated real vehicle side-tipping working condition can be completed. After the lubrication test is finished, the performance of the drive axle to be tested can be evaluated by analyzing test data obtained by controlling the measurement system.

The utility model discloses an experimental testing arrangement of transaxle, structural arrangement is reasonable, and area is little, both can simulate the transaxle that awaits measuring lubrication test under the real car downhill path operating mode, can simulate the transaxle that awaits measuring lubrication test under the real car operating mode that heels again, promptly, the installation once awaits measuring the transaxle and can accomplish two kinds of simulation tests, has improved test efficiency to can shorten product development cycle, improve production efficiency. In addition, because the mounting positions of the first support and the second support on the test platform are adjustable, the drive axle test device can be suitable for mounting drive axles to be tested with different specifications, the universality is strong, and the test cost is effectively reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a drive axle test device provided in an embodiment of the present invention after a drive axle to be tested is installed;

fig. 2 is a schematic structural diagram of a drive axle test device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a drive axle test device according to an embodiment of the present invention, in which a first adjusting plate is in a first state (a horizontal state of a drive axle to be tested);

fig. 4 is a schematic structural diagram of the drive axle test device according to the embodiment of the present invention when the first adjustment plate is in the second state (the elevation angle state of the drive axle to be tested);

fig. 5 is a schematic structural diagram of the drive axle test device according to the embodiment of the present invention when the first adjustment plate is in the third state (the depression angle state of the drive axle to be tested);

fig. 6 is a schematic structural diagram of a test platform of a drive axle test device according to an embodiment of the present invention;

fig. 7 is a side view of a test platform of a drive axle test device according to an embodiment of the present invention.

In the figure:

1-a test platform; 2-a first support member; 3-a first angle adjustment mechanism; 4-a second angle adjustment mechanism;

5-controlling the measuring system; 6-a first fastener; 7-a first articulated shaft; 8-a second articulated shaft; 9-third hinge

Connecting a shaft; 10-a second fastener;

11-a guide groove; 12-a first connector; 13-a second connector;

21-a first scaffold; 211-a base plate; 212-a support plate; 213-a reinforcing plate; 22-a second support;

2121-mounting groove; 2122-a second positioning hole;

31-a first adjusting plate; 311-first positioning hole; 312-a first mounting hole; 32-a second adjustment plate;

41-a second support member; 42-a first lifting assembly; 43-a second lifting assembly;

411-a first pillar; 412-a second strut; 413-a first support;

421-a telescoping mechanism; 422-a second support seat;

100-drive axle under test.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and fig. 2, the present embodiment provides a drive axle test device, which can be applied to a lubrication simulation test of a central integrated electric drive axle. The drive axle test device comprises a test platform 1, a first supporting component 2, a first angle adjusting mechanism 3, a second angle adjusting mechanism 4 and a control measuring system 5.

Wherein, first supporting component 2 includes first support 21 and second support 22, and first support 21 and second support 22 are all set up on test platform 1 with adjustable position. One end of the driving axle 100 to be tested is connected with the first bracket 21, and the other end is connected with the second bracket 22. The first angle adjusting mechanism 3 is disposed on the first supporting component 2 and is used for adjusting the pitch angle of the driving axle 100 to be measured. The second angle adjusting mechanism 4 is arranged below the test platform 1 and used for adjusting the inclination angle of the test platform 1. The control measurement system 5 is electrically connected to the driving axle 100 to be measured, and is used for measuring and acquiring test data of the driving axle 100 to be measured.

The drive axle test device provided by this embodiment, when carrying out the lubrication test of drive axle, at first adjust the position of first support 21 and second support 22 on test platform 1 according to the specification of the drive axle 100 that awaits measuring to make the interval between first support 21 and the second support 22 cooperate with the length of drive axle 100 that awaits measuring, later with the one end and the first support 21 of drive axle 100 that awaits measuring be connected, the other end is connected with second support 22. And secondly, connecting the control measurement system 5 with the drive axle 100 to be measured so as to control the drive axle 100 to be measured to operate and obtain test data of the drive axle 100 to be measured in real time. Then, the pitching angle of the driving axle 100 to be tested, i.e. the rotation angle of the driving axle around the axis direction thereof, is adjusted through the first angle adjusting mechanism 3 according to the experimental design requirements, so as to simulate the lubrication condition of the driving axle when the real vehicle climbs or descends. After the pitching angle of the drive axle 100 to be tested is adjusted, the drive axle 100 to be tested is fixed on the first support 21 and the second support 22, and finally, the rotating speed of the motor of the drive axle 100 to be tested is adjusted by controlling the measuring system 5, so that the lubrication test of the drive axle 100 to be tested under the working condition of simulating the real vehicle up-down slope can be completed.

After the test of the driving axle 100 to be tested on the uphill and downhill road is completed, the inclination angle of the test platform 1 is adjusted through the second angle adjusting mechanism 4, namely, the included angle between the axis of the driving axle 100 to be tested and the horizontal plane is adjusted, so that the lubricating condition of the driving axle when the actual vehicle turns or is positioned on two sides of the road with different heights (at the moment, the vehicle can roll leftwards or rightwards). After the inclination angle of the test platform 1 is adjusted, the test platform 1 is fixed, and then the rotating speed of the motor of the drive axle 100 to be tested is adjusted by controlling the measuring system 5, so that the lubrication test of the drive axle 100 to be tested under the simulated actual vehicle side-tipping working condition can be completed. After the lubrication test is completed, the performance of the transaxle 100 to be tested can be evaluated by analyzing the test data obtained by controlling the measurement system 5. The measured test data includes the motor temperature of the transaxle 100 to be measured, the temperature of the motor controller, and the like.

The experimental testing arrangement of transaxle of this embodiment, structural arrangement is reasonable, and area is little, both can simulate the lubricated experiment of transaxle 100 that awaits measuring under the real vehicle downhill path operating mode, can simulate the lubricated experiment of transaxle 100 that awaits measuring under the real vehicle operating mode that heels again, promptly, the installation once transaxle 100 that awaits measuring can accomplish two kinds of simulation tests, has improved test efficiency to can shorten product development cycle, improve production efficiency. In addition, because the mounting positions of the first support 21 and the second support 22 on the test platform 1 are adjustable, the drive axle test device can be suitable for mounting drive axles 100 to be tested with different specifications, has strong universality, and effectively reduces the test cost.

Alternatively, referring to fig. 1 and 2, the first angle adjusting mechanism 3 includes a first adjusting plate 31 and a second adjusting plate 32 detachably connected to the transaxle 100 to be measured, one end of the transaxle 100 to be measured is rotatably connected to the first bracket 21 through the first adjusting plate 31, and the other end is rotatably connected to the second bracket 22 through the second adjusting plate 32. When the pitch angle of the drive axle 100 to be tested is adjusted, the rotation angle of the first adjusting plate 31 relative to the first support 21 and the rotation angle of the second adjusting plate 32 relative to the second support 22 are adjusted simultaneously, so as to simulate the lubrication test of the drive axle 100 to be tested under the working conditions of an actual vehicle on an uphill road and a downhill road. The first adjusting plate 31 and the second adjusting plate 32 can be detachably arranged, so that the first adjusting plate 31 and the second adjusting plate 32 can be applied to different drive axles 100 to be tested, and the universality of the test device is improved.

Optionally, referring to fig. 1 to 5, each of the first bracket 21 and the second bracket 22 includes a bottom plate 211 and a supporting plate 212 disposed on the bottom plate 211, the bottom plate 211 is adjustably mounted on the testing platform 1, a mounting groove 2121 is disposed on the supporting plate 212, one end of the driving axle 100 to be tested is located in the mounting groove 2121 of the first bracket 21, and the other end of the driving axle is located in the mounting groove 2121 of the second bracket 22. In this embodiment, a concave notch is formed at an end of the supporting plate 212 away from the bottom plate 211 to form the mounting groove 2121, and the mounting groove 2121 can provide a mounting space for the driving axle 100 to be tested, so as to facilitate adjustment of the pitch angle of the driving axle 100 to be tested. First and second connection portions for connecting the first and second adjusting plates 31 and 32 are formed at both sides of the notch. Specifically, two ends of the first adjusting plate 31 are respectively connected with the first connecting portion and the second connecting portion of the supporting plate 212 of the first bracket 21, and two ends of the second adjusting plate 32 are respectively connected with the first connecting portion and the second connecting portion of the supporting plate 212 of the second bracket 22, so as to fix the to-be-tested drive axle 100.

Further, referring to fig. 1, each of the first bracket 21 and the second bracket 22 further includes a reinforcing plate 213, and one side of the reinforcing plate 213 is connected to the base plate 211 and the other side is connected to the support plate 212. The reinforcing plate 213 can increase the connection strength of the base plate 211 and the support plate 212, and improve the support stability of the first bracket 21 and the second bracket 22, thereby ensuring the accuracy of the test result.

Optionally, referring to fig. 1 to 5, the drive axle test device further includes a first fastener 6, the first adjustment plate 31 and the second adjustment plate 32 are both provided with a first positioning hole 311, the support plate 212 is provided with a plurality of second positioning holes 2122, and the first fastener 6 is configured to pass through the first positioning hole 311 and any one of the second positioning holes 2122 to adjust the pitch angle of the drive axle 100 to be tested. That is, when the first fastening member 6 passes through the different second positioning holes 2122, the rotation angle of the first adjusting plate 31 relative to the first bracket 21 and the rotation angle of the second adjusting plate 32 relative to the second bracket 22 are different, so that the pitch angle of the transaxle 100 to be tested can be changed. Specifically, before the pitch angle of the driving axle 100 to be measured is adjusted, the first fastening member 6 is loosened, then the driving axle 100 to be measured is rotated, and after the driving axle 100 to be measured is rotated to a preset angle, the first fastening member 6 passes through the first positioning hole 311 and the corresponding second positioning hole 2122, so that the first adjusting plate 31 is fixed on the supporting plate 212 of the first bracket 21, the second adjusting plate 32 is fixed on the supporting plate 212 of the second bracket 22, and the pitch angle of the driving axle 100 to be measured is fixed.

In this embodiment, two ends of the first adjusting plate 31 and the second adjusting plate 32 are respectively provided with a first positioning hole 311, and correspondingly, the first connecting portion and the second connecting portion of the supporting plate 212 are respectively provided with a plurality of second positioning holes 2122. The first positioning hole 311 is preferably a strip-shaped hole, and the strip-shaped hole can prevent the first fastening piece 6 and the second positioning hole 2122 from being misaligned when the first adjusting plate 31 and the second adjusting plate 32 are fixed, so that the fastening operation is more convenient. Referring to fig. 3 to 5, in the embodiment, two first fastening members 6 are disposed in each first positioning hole 311 to firmly fix the first adjusting plate 31 and the second adjusting plate 32 on the first bracket 21 and the second bracket 22, respectively, so as to prevent the rotation angle of the first adjusting plate 31 and the second adjusting plate 32 from changing after the fastening operation, that is, prevent the pitch angle of the drive axle from changing, and thus, the accuracy of the test result of the drive axle 100 to be tested can be ensured. The first fastening member 6 is preferably a bolt and a nut.

Further, referring to fig. 3 to 5, the first positioning holes 311 on the first adjusting plate 31 and the second adjusting plate 32 are both arc-shaped strip-shaped holes, the plurality of second positioning holes 2122 are arranged in an arc shape on the first connecting portion and the second connecting portion of the supporting plate 212, and the radian of the first positioning hole 311 is the same as the radian of the arc where the plurality of second positioning holes 2122 are located. The design mode can enable the drive axle 100 to be tested to adjust more angles, so that the lubricating condition of the drive axle 100 to be tested under the working condition of the real vehicle can be simulated in an all-dimensional manner, and the reliability of the test result is improved. In this embodiment, the second positioning holes 2122 are distributed at equal intervals, so as to accurately control the pitch angle of the driving axle 100 to be measured. Illustratively, the angular interval between two adjacent second positioning holes 2122 is 5 °, in other embodiments, the angular interval may also be 2 °, 4 °, 10 °, etc., which is not listed here.

In this embodiment, the rotation angles of the first adjusting plate 31 and the second adjusting plate 32 are changed synchronously, and taking the first adjusting plate 31 as an example, as shown in fig. 3, in an initial state, the first adjusting plate 31 is placed horizontally, and at this time, the driving axle 100 to be tested is in a horizontal state. When the uphill condition is simulated, the first adjusting plate 31 is rotated clockwise relative to the supporting plate 212 of the first bracket 21 (and the second adjusting plate 32 is rotated clockwise relative to the supporting plate 212 of the second bracket 22), as shown in fig. 4, at this time, the drive axle 100 to be measured is at a certain inclination angle of the uphill condition. When a downhill working condition is simulated, the first adjusting plate 31 is rotated counterclockwise relative to the supporting plate 212 of the first bracket 21 (and the second adjusting plate 32 is rotated counterclockwise relative to the supporting plate 212 of the second bracket 22), as shown in fig. 5, at this time, the driving axle 100 to be measured is at a certain inclination angle of the downhill working condition.

Optionally, referring to fig. 1 and 2, the drive axle test device further includes a second fastener 10, and the first adjusting plate 31 and the second adjusting plate 32 are both fixed on the drive axle 100 to be tested through the second fastener 10. Referring to fig. 3 to 5, the first adjusting plate 31 and the second adjusting plate 32 are both provided with a first mounting hole 312, a second mounting hole (not shown) is provided at a connection position of the transaxle 100 to be tested, and the second fastening member 10 is preferably a bolt and a nut. When the first adjusting plate 31 and the second adjusting plate 32 are installed, the bolts penetrate through the first mounting holes 312 and the second mounting holes, and the first adjusting plate 31 and the second adjusting plate 32 can be fixed on the drive axle 100 to be tested after the nuts are screwed down, so that the installation is convenient. In this embodiment, a plurality of first mounting holes 312 are provided on the first adjusting plate 31 and the second adjusting plate 32, and accordingly, the driving axle 100 to be tested and the first adjusting plate 31 and the second adjusting plate 32 are fixed by a plurality of second fasteners 10, so that the connection is firm.

Optionally, referring to fig. 1 and 2, the second angle adjusting mechanism 4 includes a second supporting component 41, and a first lifting component 42 and a second lifting component 43 respectively disposed at two ends of the testing platform 1, one end of the second supporting component 41 is fixed on the testing base, the other end is hinged to the testing platform 1, and the first lifting component 42 and the second lifting component 43 are respectively used for adjusting the heights of the two ends of the testing platform 1 to change the inclination angle of the testing platform 1. During initial state, test platform 1 is placed horizontally, and when first lifting component 42 rose and second lifting component 43 reduced, test platform 1 rotated relatively second supporting component 41 promptly to change its inclination, correspondingly, the inclination of the transaxle 100 that awaits measuring that is located test platform 1 top also changed along with it, and then can simulate the lubrication test of transaxle 100 that awaits measuring under the real vehicle operating mode that heels.

Optionally, referring to fig. 1 and fig. 2, the second support assembly 41 includes a first support column 411 and a second support column 412 that are arranged at an interval, one end of each of the first support column 411 and the second support column 412 is hinged to the test platform 1, the other end of each of the first support column 411 and the second support column 412 is provided with a first support seat 413, and the first support seat 413 is fixed on the test base. In this embodiment, the first support column 411 and the second support column 412 are both located in the middle of the test platform 1 and are respectively hinged to two sides of the test platform 1 along the width direction, so as to ensure the support stability of the test platform 1. The test base can be the ground of test site, also can be the test operation platform that sets up for the experiment is special, and first supporting seat 413 accessible fasteners such as bolt are fixed on the test base, are convenient for install.

Optionally, referring to fig. 2, fig. 6 and fig. 7, the drive axle test device further includes a first hinge shaft 7, a first connecting member 12 is disposed at the bottom of the test platform 1, and the first connecting member 12 is hinged to the first pillar 411 and the second pillar 412 through the first hinge shaft 7. In this embodiment, the first connecting member 12 is two first ear plates disposed at an interval, the first pillar 411 and the second pillar 412 are both provided with a second ear plate, the second ear plate is located between the two first ear plates, and the first hinge shaft 7 penetrates through the second ear plate and the two first ear plates and is rotatably connected with the two first ear plates, so as to realize the hinge connection between the first pillar 411 and the test platform 1 and the hinge connection between the second pillar 412 and the test platform.

Optionally, referring to fig. 1 and fig. 2, each of the first lifting assembly 42 and the second lifting assembly 43 includes a telescopic mechanism 421 and a second support seat 422, one end of the telescopic mechanism 421 is hinged to the test platform 1, the other end of the telescopic mechanism is hinged to the second support seat 422, and the second support seat 422 is fixed on the test base. All articulated between telescopic machanism 421 and test platform 1 and the second supporting seat 422, when telescopic machanism 421 of first lifting unit 42 and telescopic machanism 421 of second lifting unit 43 stretch out and draw back, the inclination of test platform 1 changes, and articulated connected mode can make telescopic machanism 421 adapt to the inclination change of test platform 1, prevents that telescopic machanism 421 and test platform 1 from interfering. In this embodiment, the telescopic mechanism 421 is preferably a hydraulic cylinder, which is convenient to control and easy to control the telescopic precision, and in other embodiments, the telescopic mechanism 421 may be a screw structure or the like as long as it can realize the lifting function.

Optionally, referring to fig. 2 and 7, the drive axle test device further includes a second hinge shaft 8 and a third hinge shaft 9, a second connecting member 13 is disposed at the bottom of the test platform 1, the second connecting member 13 is hinged to the telescopic mechanism 421 through the second hinge shaft 8, the second supporting seat 422 is hinged to the telescopic mechanism 421 through the third hinge shaft 9, and a locking mechanism is disposed on the third hinge shaft 9 and can lock the telescopic mechanism 421 on the second supporting seat 422. In this embodiment, the second connecting member 13 is two third otic placodes that the interval set up, is provided with the fourth otic placode on the telescopic machanism 421, and the fourth otic placode is located between two third otic placodes, and second articulated shaft 8 runs through fourth otic placode and two third otic placodes to rotate with the three and be connected, in order to realize the articulated of telescopic machanism 421 and test platform 1. Second supporting seat 422 includes that base and interval set up first set square and second set square on the base, third articulated shaft 9 run through telescopic machanism 421 the bottom and with telescopic machanism 421 fixed connection, the both ends of third articulated shaft 9 pass first set square and second set square respectively and with both rotatable coupling to realize telescopic machanism 421 and second supporting seat 422's articulated. After the inclination angle of the test platform 1 is adjusted, the third hinge shaft 9 is locked on the second support seat 422 through the locking mechanism, so that the inclination angle of the test platform 1 is fixed, and then the lubrication test of the drive axle 100 to be tested under the actual vehicle heeling condition can be performed.

Optionally, referring to fig. 6 and 7, the test platform 1 is provided with a guide groove 11, and the bottom plates 211 of the first bracket 21 and the second bracket 22 are respectively provided with a slider (not shown), which is clamped in the guide groove 11 and is adjustable in position in the guide groove 11. When the distance between the first support 21 and the second support 22 is adjusted, only the first support 21 and the second support 22 need to be pushed to enable the sliding block to slide in the guide groove 11, and the position adjustment is convenient and fast. Preferably, the guide grooves 11 are T-shaped through grooves arranged along the length direction of the test platform 1, and two guide grooves 11 are arranged in parallel and at intervals, so that the first support 21 and the second support 22 are prevented from deviating during position adjustment.

Optionally, a third fastener is arranged on the bottom plate 211, and after the positions of the first support 21 and the second support 22 are adjusted, the first support 21 and the second support 22 are locked and fixed on the test platform 1 through the third fastener, so as to ensure the support stability of the first support 21 and the second support 22 on the drive axle 100 to be tested. The third fastening member is preferably a bolt, and the bolt penetrates through the bottom plate 211 and then is connected with the test platform 1.

The driving axle test device provided by the embodiment has the following use method:

when the lubrication test of the drive axle 100 to be tested under the working condition of uphill and downhill of the real vehicle is simulated:

firstly, the height of the first lifting assembly 42 is adjusted to be equal to the height of the second lifting assembly 43, and the telescopic mechanism 421 is locked on the second supporting seat 422 through the locking mechanism, that is, the testing platform 1 is ensured to be in a horizontal state. Secondly, the positions of the first support 21 and the second support 22 on the test platform 1 are adjusted according to the size of the drive axle 100 to be tested, and after the positions are adjusted, the first support 21 and the second support 22 are locked and fixed on the test platform 1 by using a third fastener. Then, the first adjusting plate 31 and the second adjusting plate 32 are fixed on the driving axle 100 to be tested by the second fastener 10, then the driving axle 100 to be tested is rotated to a preset angle according to the test requirement, the first adjusting plate 31 is fixed on the supporting plate 212 of the first bracket 21 by the first fastener 6, and the second adjusting plate 32 is fixed on the supporting plate 212 of the second bracket 22. And finally, connecting the control measurement system 5 with the drive axle 100 to be tested, and adjusting the motor rotating speed of the drive axle 100 to be tested through the control measurement system 5, namely completing the lubrication test of the drive axle 100 to be tested under the working condition of up-down slope of the actual vehicle.

During the lubrication test of the driving axle 100 to be tested under the actual vehicle side-tipping working condition:

on the basis of the above lubrication test, the transaxle 100 to be tested is rotated to an initial horizontal state (i.e. the state of the first adjusting plate 31 and the second adjusting plate 32 as shown in fig. 3 is ensured), and then the telescopic mechanisms 421 of the first lifting assembly 42 and the telescopic mechanisms 421 of the second lifting assembly 43 are driven to extend and retract so as to adjust the inclination angle of the test platform 1. For example, when the extension mechanism 421 of the first lifting assembly 42 is raised and the extension mechanism 421 of the second lifting assembly 43 is lowered, the test platform 1 is tilted to the right (refer to the orientation in fig. 1), and after the test platform 1 is tilted to a preset angle, the extension mechanism 421 is locked on the second support seat 422 by the locking mechanism. And then, the rotating speed of the motor of the drive axle 100 to be tested is adjusted by controlling the measuring system 5, so that the lubrication test of the drive axle 100 to be tested under the working condition of the preset heeling angle can be carried out. In a similar way, the telescopic mechanism 421 of the first lifting assembly 42 is lowered, and the telescopic mechanism 421 of the second lifting assembly 43 is raised, so that the test platform 1 can be tilted to the left to a preset angle, and the lubrication test of the drive axle 100 to be tested under the working condition of the preset roll angle is completed.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A drive axle test testing device, comprising:

a test platform (1);

the first support assembly (2) comprises a first support (21) and a second support (22), the first support (21) and the second support (22) are both arranged on the test platform (1) in a position-adjustable manner, one end of a drive axle (100) to be tested is connected with the first support (21), and the other end of the drive axle is connected with the second support (22);

the first angle adjusting mechanism (3) is arranged on the first supporting component (2), and the first angle adjusting mechanism (3) is used for adjusting the pitching angle of the drive axle (100) to be measured;

the second angle adjusting mechanism (4) is arranged below the test platform (1), and the second angle adjusting mechanism (4) is used for adjusting the inclination angle of the test platform (1);

and the control measurement system (5), the control measurement system (5) is electrically connected with the drive axle (100) to be measured and is used for controlling the drive axle (100) to be measured to operate and measuring and acquiring test data of the drive axle (100) to be measured.

2. The drive axle test device according to claim 1, wherein the first angle adjusting mechanism (3) comprises a first adjusting plate (31) and a second adjusting plate (32) detachably connected with the drive axle (100) to be tested, one end of the drive axle (100) to be tested is rotatably connected to the first bracket (21) through the first adjusting plate (31), and the other end of the drive axle (100) to be tested is rotatably connected to the second bracket (22) through the second adjusting plate (32).

3. The drive axle test device according to claim 2, wherein the first bracket (21) and the second bracket (22) each comprise a bottom plate (211) and a support plate (212) arranged on the bottom plate (211), the bottom plate (211) is adjustably mounted on the test platform (1) in position, a mounting groove (2121) is arranged on the support plate (212), one end of the drive axle (100) to be tested is located in the mounting groove (2121) of the first bracket (21), and the other end of the drive axle is located in the mounting groove (2121) of the second bracket (22).

4. The drive axle test device according to claim 3, further comprising a first fastener (6), wherein each of the first adjusting plate (31) and the second adjusting plate (32) is provided with a first positioning hole (311), the support plate (212) is provided with a plurality of second positioning holes (2122), and the first fastener (6) is configured to pass through the first positioning hole (311) and any one of the second positioning holes (2122) so as to adjust the pitch angle of the drive axle (100) to be tested.

5. The drive axle test device according to claim 1, wherein the second angle adjusting mechanism (4) comprises a second supporting component (41), and a first lifting component (42) and a second lifting component (43) which are respectively arranged at two ends of the test platform (1), one end of the second supporting component (41) is fixed on the test base, the other end of the second supporting component is hinged with the test platform (1), and the first lifting component (42) and the second lifting component (43) are respectively used for adjusting the heights of the two ends of the test platform (1) so as to change the inclination angle of the test platform (1).

6. The drive axle test device according to claim 5, wherein the second supporting component (41) comprises a first supporting column (411) and a second supporting column (412) which are arranged at intervals, one end of each of the first supporting column (411) and the second supporting column (412) is hinged with the test platform (1), the other end of each of the first supporting column (411) and the second supporting column (412) is provided with a first supporting seat (413), and the first supporting seat (413) is fixed on the test base.

7. The drive axle test device according to claim 6, further comprising a first hinge shaft (7), wherein a first connecting piece (12) is arranged at the bottom of the test platform (1), and the first connecting piece (12) is hinged to the first pillar (411) and the second pillar (412) through the first hinge shaft (7).

8. The drive axle test device according to claim 5, wherein the first lifting component (42) and the second lifting component (43) each comprise a telescopic mechanism (421) and a second supporting seat (422), one end of the telescopic mechanism (421) is hinged to the test platform (1), the other end of the telescopic mechanism is hinged to the second supporting seat (422), and the second supporting seat (422) is fixed on the test base.

9. The drive axle test device according to claim 8, further comprising a second hinge shaft (8) and a third hinge shaft (9), wherein a second connecting member (13) is disposed at the bottom of the test platform (1), the second connecting member (13) is hinged to the telescopic mechanism (421) through the second hinge shaft (8), the second support seat (422) is hinged to the telescopic mechanism (421) through the third hinge shaft (9), and a locking mechanism is disposed on the third hinge shaft (9) and can lock the telescopic mechanism (421) to the second support seat (422).

10. The drive axle test device according to any one of claims 1 to 9, wherein a guide groove (11) is formed in the test platform (1), and a sliding block is arranged on each of the first bracket (21) and the second bracket (22), is clamped in the guide groove (11), and is adjustable in position in the guide groove (11).

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