CN212159065U - Reliable durability test device of new energy automobile drive shaft assembly - Google Patents
Reliable durability test device of new energy automobile drive shaft assembly Download PDFInfo
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- CN212159065U CN212159065U CN202021116640.6U CN202021116640U CN212159065U CN 212159065 U CN212159065 U CN 212159065U CN 202021116640 U CN202021116640 U CN 202021116640U CN 212159065 U CN212159065 U CN 212159065U
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Abstract
The utility model relates to a new energy automobile technical field especially relates to a reliable durability test device of new energy automobile drive shaft assembly. The test device comprises: the device comprises a test platform, an electric drive mechanism, a support mechanism, a rotating wheel, a sector gear, a cylindrical gear and a drive motor; the bottom of the supporting mechanism is arranged on the test platform, and the top of the supporting mechanism supports the electric driving mechanism; the rotating wheel, the sector gear, the cylindrical gear and the driving motor are symmetrically arranged on the left side and the right side of the electric driving mechanism respectively. The utility model provides a test device can adjust the axial load of drive half shaft, can also test its torsion operating condition under different angles, reaches the effect of verifying the reliability and the durability of drive shaft assembly and holder fast; moreover, the device has the advantages of simple structure, easy construction, low cost and strong operability.
Description
Technical Field
The utility model relates to a new energy automobile technical field especially relates to a reliable durability test device of new energy automobile drive shaft assembly.
Background
Automobiles are vehicles for people in daily life, and the automobile industry faces a serious challenge with the increasingly prominent world energy crisis and environmental protection problems in recent years. The new energy automobile has the advantages of environmental protection, low use cost, good driving stability and the like, and the development of the new energy automobile is a necessary way for the development of the automobile industry.
The driving system is one of the main systems of the new energy automobile, and determines the performance of the new energy automobile. The driving system of the new energy automobile comprises an electric driving mechanism, a driving shaft assembly and a driving wheel. Wherein, electric drive mechanism can include motor, motor controller and reduction gear, and the trinity mechanism can be integrated to present stage. The driving shaft is a shaft connected between the speed reducer and the driving wheel, and is also called a driving half shaft, so that the torque of the motor is transmitted, and the driving tire is driven to rotate to achieve the purpose of driving the vehicle. The driving shaft usually comprises a left driving half shaft and a right driving half shaft, and the driving shaft is complex in stress during operation, bears load effects such as torque, bending and stretching, is easy to generate torque and bending deformation, and even breaks. In addition, under the conditions of ultimate tension, compression and high torque driving, the driving shaft retainer (ball cage and universal joint) is easy to have structural damage, thereby further causing serious traffic accidents and influencing personal safety and the brand image and public praise of automobiles. Therefore, it is important to detect the performance of the drive shaft.
For detecting the performance of the drive shaft assembly of the new energy automobile, several methods are provided in the prior art, such as: chinese patent CN201811023469 "car hub bearing dynamic vibration endurance test bed", chinese patent CN201821715499 "automobile driving shaft endurance test device", chinese patent CN201310437989 "automobile transmission rack endurance test operation state monitoring method", chinese patent CN201410431584 "a driving shaft torsion test bed", and chinese patent CN201811230235 "motor driving system test bed for pure electric passenger car", etc. The testing device is complex in structure, detection performance is not comprehensive enough, and the detection result cannot comprehensively reflect the working reliability of the driving shaft assembly.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a reliable durability test device of new energy automobile drive shaft assembly.
The utility model provides a reliable durability test device of new energy automobile drive shaft assembly, it includes: the device comprises a test platform, an electric drive mechanism, a support mechanism, a rotating wheel, a sector gear, a cylindrical gear and a drive motor; wherein the content of the first and second substances,
the bottom of the supporting mechanism is arranged on the test platform, and the top of the supporting mechanism supports the electric driving mechanism; the rotating wheel, the sector gear, the cylindrical gear and the driving motor are respectively and symmetrically arranged on the left side and the right side of the electric driving mechanism;
two driving half shafts of the new energy automobile driving shaft assembly are arranged along the horizontal direction, the head ends of the two driving half shafts are respectively connected with output shafts on the left side and the right side of the electric driving mechanism, and the tail ends of the two driving half shafts are respectively connected with rotating wheels on the left side and the right side of the electric driving mechanism; the rotating wheel is provided with a rotating shaft at the center of the outer side of the rotating wheel;
the opening of the sector gear is arranged towards the electric drive mechanism, and an arc-shaped rack is arranged on the outer side of the sector gear along the circumferential direction; a circular groove is formed in the outer side of the sector gear, a through hole through which the rotating shaft can penetrate is formed in the center of the circular groove, a bearing is arranged in the circular groove, the inner ring of the bearing is connected with the rotating shaft, and the outer ring of the bearing is fixed in the circular groove; the tail end of the rotating shaft and the outer end face of the bearing are fixed by nuts;
the cylindrical gear is arranged along the vertical direction, is arranged on the outer side of the sector gear and is meshed with the sector gear;
the driving motor is arranged on the test platform, and an output shaft of the driving motor is connected with the cylindrical gear positioned on the same side.
And further, the device also comprises a rotation limiting mechanism for limiting the maximum rotation angle of the sector gear, wherein the maximum rotation angle is larger than or equal to the limit rotation angle of the driving half shaft positioned on the same side.
Furthermore, a limiting groove is formed in the outer side of the sector gear;
the rotation limiting mechanism comprises a joint bearing, the tail end of the joint bearing is connected with the cylindrical gear, and a bearing part at the head end of the joint bearing can be arranged in the limiting groove in a rolling mode.
Furthermore, the limiting groove is a T-shaped groove which is transversely arranged; the diameter of the head end of the joint bearing is larger than that of the tail portion of the joint bearing, and the head end of the joint bearing is clamped in the T-shaped groove.
Furthermore, a screw hole is formed in the center of the top surface of the cylindrical gear downwards along the vertical direction, a circular ring support is arranged around the screw hole in the top surface of the cylindrical gear along the vertical direction, and a screw hole is formed in the tail end of the knuckle bearing along the vertical direction; and the tail end of the joint bearing is fixed on the circular ring support through a bolt.
Furthermore, the central part of the top surface of the sector gear protrudes upwards to form a connecting plate, and the outer side of the connecting plate is provided with the circular groove.
Further, the test platform further comprises a driving motor support, a chassis of the driving motor support is fixed on the test platform, and the driving motor is fixed on the top surface.
Further, the supporting mechanism includes a plurality of supporting columns, and the supporting columns include: the bottom plate is fixed on the test platform, and the upright column is connected with the suspension end of the electric drive mechanism.
Further, the upright post and the suspension end are fixed through a nut.
Further, the electric drive mechanism includes: a motor and a reducer, or comprising: a motor, a motor controller and a reducer.
Compared with the prior art, the utility model provides a reliable endurance test device of new energy automobile drive shaft assembly has following advantage:
1) a rotating wheel is arranged at the tail end of the driving half shaft, so that the rotational inertia of the tire is simulated, the real working state is deeply restored, and the testing accuracy is improved;
2) the adjustment of the axial load of the driving half shaft can be realized by adjusting the nut on the rotating shaft of the rotating wheel, so that the telescopic performance of the driving half shaft is tested, and the operation is simple and easy;
3) the driving motor drives the sector gear through the cylindrical gear, the torsional working state of the driving half shaft under different angles is restored, and the reliability and the durability of the driving half shaft can be comprehensively reflected;
4) the testing device is simple in structure, easy to build, low in cost and high in operability.
To sum up, the utility model provides a test device can adjust the axial load of drive half axle, can also test its torsion operating condition under different angles, reaches the effect of verifying the reliability and the durability of drive shaft assembly and holder fast; moreover, the device is simple in structure and easy to build.
Drawings
Fig. 1 is a schematic structural diagram of a reliable durability test device for a new energy automobile drive shaft assembly provided by the present invention;
fig. 2 is an isometric view of the reliable durability test device of the new energy automobile drive shaft assembly provided by the utility model under different extreme working states;
fig. 3 is a top view of the reliable durability test device of the new energy automobile drive shaft assembly provided by the present invention under different extreme operating states;
fig. 4 is a schematic view of the reliable durability test device of the new energy automobile drive shaft assembly in a working state at a left limit position and a right limit position;
fig. 5 is an exploded schematic view of a rotating wheel and a gear device in the reliable durability test device for the new energy automobile driving shaft assembly provided by the present invention;
fig. 6 is a schematic structural diagram of a runner and a gear device in the reliable durability test device for the new energy automobile drive shaft assembly provided by the present invention;
fig. 7 is a front view of a runner and a gear device in the reliable durability test device for the new energy automobile drive shaft assembly provided by the present invention;
FIG. 8 is a front cross-sectional view taken along plane A-A of FIG. 7;
the direction of the arrows in fig. 1 to 4 is the forward direction of the vehicle;
the gear device in fig. 5 to 8 includes: sector gear, cylindrical gear and driving motor.
Description of reference numerals:
1-electric drive mechanism
2-drive half shaft
3-support mechanism
4-wheel
41-rotating shaft
5-sector gear
51-bearing
52-connecting plate
6-drive motor
7-cylindrical gear
8-test platform
9-knuckle bearing
L1 left extreme State I
L2 left extreme State II
R1-Right Limit State I
R2-Right Limit State II
Detailed Description
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the 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 being fixed or detachable or integrally connected; 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 creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The outer sides of the test platform are the sides far away from the middle part of the test platform, namely the sides far away from the electric driving mechanism; the directions "left" and "right" are both based on the direction of travel of the vehicle.
Referring to fig. 1, in a specific embodiment, the present invention provides a reliable durability test apparatus for a new energy automobile driving shaft assembly, which includes: the device comprises a test platform 8, an electric drive mechanism 1, a support mechanism 3, a rotating wheel 4, a sector gear 5, a cylindrical gear 7 and a drive motor 6; wherein the content of the first and second substances,
the bottom of the supporting mechanism 3 is arranged on a test platform 8, and the top of the supporting mechanism supports the electric driving mechanism 1; the rotating wheel 4, the sector gear 5, the cylindrical gear 7 and the driving motor 6 are respectively and symmetrically arranged on the left side and the right side of the electric driving mechanism 1;
two driving half shafts 2 (namely a left driving half shaft and a right driving half shaft) of the new energy automobile driving shaft assembly are arranged along the horizontal direction, the head ends of the driving half shafts are respectively connected with output shafts on the left side and the right side of the electric driving mechanism 1, and the tail ends of the driving half shafts are respectively connected with rotating wheels 4 on the left side and the right side of the electric driving mechanism 1; the rotary wheel 4 is provided with a rotary shaft 41 at the center of the outer side thereof (see fig. 5);
referring to fig. 5 to 8, an opening of the sector gear 5 is disposed toward the electric drive mechanism 1, and an arc-shaped rack is disposed on an outer side of the sector gear along a circumferential direction; a circular groove is formed in the outer side of the sector gear 5, a through hole through which the rotating shaft 41 can penetrate is formed in the center of the circular groove, a bearing 51 is arranged in the circular groove, the inner ring of the bearing 51 is connected with the rotating shaft 41, and the outer ring of the bearing is fixed in the circular groove; the tail end of the rotating shaft 41 and the outer end face of the bearing 51 are fixed by nuts;
the cylindrical gear 7 is arranged along the vertical direction, is arranged on the outer side of the sector gear 5 and is meshed with the sector gear 5;
the driving motor 6 is arranged on a test platform 8, and an output shaft of the driving motor is connected with the cylindrical gear 7 positioned on the same side.
Adopt the utility model provides a test device tests new energy automobile drive shaft assembly's reliable durability's operation as follows:
1) and an assembling stage:
the head ends of two driving half shafts 2 are respectively arranged on output shafts on the left side and the right side of an electric driving mechanism 1, and the tail ends are provided with rotating wheels 4 so as to simulate the rotational inertia of a tire; the sector gear 5 and the rotating wheel 4 are connected with the bearing 51 through nuts, so that the sector gear 5 does not rotate along with the rotation of the driving half shaft 2 and the rotating wheel 4 in the rotating process; the sector gear 5 is meshed with a cylindrical gear 7 fixed to a driving motor 6, thereby completing the assembly work before the test.
2) And a testing stage:
the expansion performance of the half shaft 2 is detected by adjusting the axial load of the driving half shaft 2 through adjusting the nut on the rotating shaft 41;
the driving motors 6 on the left side and the right side are controlled to work independently, the working states of the driving assembly and the retainer (such as a ball cage and a universal joint) under various left and right angle states are simulated, and then the reliable durability is evaluated. Referring to fig. 2-4, the simulated operating conditions include, but are not limited to, the following:
2.1) simulating the rotation of the left driving half shaft in the left limit state I, and the rotation of the right driving half shaft between the right limit state I and the right limit state II;
2.2) simulating the rotation of the left driving half shaft in the left limit state II, and the rotation of the right driving half shaft between the right limit state I and the right limit state II;
2.3) simulating the rotation of the right driving half shaft in the right limit state I, and the rotation of the left driving half shaft between the left limit state I and the left limit state II;
2.4) simulating the rotation of the right driving half shaft in the right limit state II and the rotation of the left driving half shaft between the left limit state I and the left limit state II;
2.5) simulating the rotation of the right-hand drive axle between the right-hand limit state I and the right-hand limit state II and the rotation of the left-hand drive axle between the left-hand limit state I and the left-hand limit state II.
The new energy motor twists reverse the loading to the drive shaft through the reduction gear, the utility model provides a test device through installing runner 4 on driving semi-axis 2, the inertia of simulation tire; the axial load of the driving shaft is adjusted through the nut on the rotating wheel 4; the sector gear 5 is installed on the runner 4, and the driving motor 6 drives the sector gear 5 through the cylindrical gear 7, so that the driving half shaft 2 can be ensured to perform twisting work under different angle states, the effect of quickly verifying the reliability and durability of the driving shaft assembly and the retainer (a ball cage and a universal joint) is achieved, and the reliability of the driving shaft assembly is fully verified in the development stage.
The utility model provides an among the reliable endurance test device of new energy automobile drive shaft assembly:
the test platform 8 is used for fixing the supporting mechanism 3, the driving motor 6 and other parts, and provides a premise for the reliability of the test. The test platform 8 may be of iron or steel plate construction.
Electric drive mechanism 1 is the output torque of drive semi-axis 2, the operating condition of simulation car, and this electric drive mechanism 1 can be trinity mechanism, includes the motor promptly, and machine controller and reduction gear also can be two unification mechanisms, includes motor and reduction gear promptly. The selection can be made by one skilled in the art according to the test requirements.
The supporting mechanism 3 is fixed on the test platform 8 and used for supporting and fixing the electric driving mechanism 1, so that the driving half shaft 2 is in a suspension state to simulate the working state of an automobile. Preferably, referring to fig. 1, the supporting mechanism 3 comprises a plurality of supporting columns, and the supporting columns comprise: the test device comprises a bottom plate and a stand column arranged on the top surface of the bottom plate, wherein the bottom plate is fixed on a test platform 8, and the stand column is connected with a suspension end of an electric drive mechanism 1. It will be appreciated by those skilled in the art that the number of support posts is determined by the number of suspension ends of the electric drive mechanism 1. Electric drive mechanism 1 adopts trinity mechanism in this embodiment, is provided with three suspension end, so adopts three support column, and the support column passes through the nut with the suspension end and fixes.
The runner 4 is arranged at the tail end of the driving half shaft 2 and used for simulating the rotational inertia of the tire and improving the testing accuracy. The outer side of the rotating wheel 4 is provided with a rotating shaft 41, the rotating shaft 41 is used for being connected with the sector gear 5, and the sector gear 5 swings to drive the rotating shaft 41 to rotate and move, so that the working state of the driving half shaft 2 is simulated.
The sector gear 5 is connected with the rotating shaft 41 of the rotating wheel 4 and is meshed and matched with the cylindrical gear 7. The driving motor 6 drives the cylindrical gear 7 to rotate, the cylindrical gear 7 drives the sector gear 5 to rotate, and the sector gear 5 drives the runner 4 to rotate and move, so that the state that the half shaft 2 is driven to twist under different angle states is simulated. The sector gear 5 is connected with the rotating shaft 41 of the rotating wheel 4 through a nut and a bearing 51, and particularly, refer to fig. 3 to 6: a circular groove is formed in the outer side of the sector gear 5, a through hole through which the rotating shaft 41 can penetrate is formed in the center of the circular groove, a bearing 51 is arranged in the circular groove, the inner ring of the bearing 51 is connected with the rotating shaft 41, and the outer ring is fixed in the circular groove; the tip end of the rotating shaft 41 and the outer end face of the bearing 51 are fixed by a nut. The circular groove is used for arranging a bearing 51, on one hand, the bearing 51 realizes that the rotating shaft 41 can rotate in the through hole, and the fan-shaped gear 5 does not rotate along with the rotation of the driving half shaft 2 and the rotating wheel 4 in the rotating process; on the other hand, friction between the rotating shaft 41 and the through hole during rotation can also be reduced. The nut is not only used for fixing the axial position of the bearing 51 and the axial position of the rotating shaft 41, but also can realize the adjustment of the axial load of the driving half shaft 2 and detect the telescopic performance of the driving half shaft 2 by adjusting the nut. Preferably, in order to facilitate the connection between the rotating shaft 41 and the sector gear 5, a connecting plate 52 is formed at a central portion of the top surface of the sector gear 5 in an upward protruding manner, and the circular groove is opened at the outer side of the connecting plate 52.
In view of the safety and reliability of the test, the above-mentioned test apparatus preferably further comprises a rotation limiting mechanism for limiting the maximum rotation angle of the sector gear 5, which is greater than or equal to the limit rotation angle of the drive half shaft 2 located on the same side, so as to ensure that the drive half shaft 2 can reach the limit rotation angle position during the test. The rotation limiting mechanism can be a baffle plate and the like. Referring to fig. 8, the rotation limiting mechanism in this embodiment preferably adopts the following scheme:
a limiting groove is formed in the outer side of the sector gear 5;
the rotation limiting mechanism comprises a joint bearing 9, the tail end of the joint bearing 9 is connected with the cylindrical gear 7, and a bearing part at the head end of the joint bearing is arranged in the limiting groove in a rolling mode.
The driving motor 6 drives the sector gear 5 to rotate through the cylindrical gear 7, the sector gear 5 is driven to rotate in a reciprocating mode, the head end of the joint bearing 9 rolls in the limiting groove in a reciprocating mode, the limiting groove limits the rotating angle of the joint bearing 9, and then the maximum rotating angle of the sector gear 5 is limited. This rotation limiting mechanism not only can restrict the stroke of the extreme motion of cylindrical gear 7, still has following effect: the position of the fixed cylindrical gear 7 on the sector gear 5 plays a certain supporting role, and the fixed cylindrical gear 7 is connected with the sector gear 5.
Furthermore, the limiting groove is a T-shaped groove which is transversely arranged; the diameter of the head end of the joint bearing 9 is larger than that of the tail portion of the joint bearing, and the head end of the joint bearing 9 is clamped in the T-shaped groove. The transverse T-shaped groove can limit the radial movement of the head end of the knuckle bearing 9, and the reliability of the test is improved.
Preferably, referring to fig. 8, a screw hole is formed in the center of the top surface of the cylindrical gear 7 downward along the vertical direction, a circular ring support is arranged around the screw hole in the top surface of the cylindrical gear 7 along the vertical direction, and a screw hole is formed in the tail end of the knuckle bearing 9 along the vertical direction; the tail end of the joint bearing 9 is fixed on the circular ring support through a bolt. During connection, the bolt sequentially penetrates through the screw hole at the tail end of the knuckle bearing 9, the inside of the circular ring support and the screw hole of the cylindrical gear 7 and then is fixed.
In order to facilitate installation or replacement of the driving motor 6, the testing device preferably further comprises a driving motor support, a chassis of the driving motor support is fixed on the testing platform 8, and the top surface of the driving motor support is fixed with the driving motor 6.
Therefore, the reliable endurance test device for the new energy automobile drive shaft assembly provided by the utility model has the following advantages:
1) a rotating wheel is arranged at the tail end of the driving half shaft, so that the rotational inertia of the tire is simulated, the real working state is deeply restored, and the testing accuracy is improved;
2) the adjustment of the axial load of the driving half shaft can be realized by adjusting the nut on the rotating shaft of the rotating wheel, so that the telescopic performance of the driving half shaft is tested, and the operation is simple and easy;
3) the driving motor drives the sector gear through the cylindrical gear, the torsional working state of the driving half shaft under different angles is restored, and the reliability and the durability of the driving half shaft can be comprehensively reflected;
4) the testing device is simple in structure, easy to build, low in cost and high in operability.
To sum up, the utility model provides a test device can adjust the axial load of drive half axle, can also test its torsion operating condition under different angles, reaches the effect of verifying the reliability and the durability of drive shaft assembly and holder fast; moreover, the device is simple in structure and easy to build.
It is right above the utility model provides a new energy automobile drive shaft assembly's reliable durability test device has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The utility model provides a reliable endurance test device of new energy automobile drive shaft assembly which characterized in that includes: the device comprises a test platform, an electric drive mechanism, a support mechanism, a rotating wheel, a sector gear, a cylindrical gear and a drive motor; wherein the content of the first and second substances,
the bottom of the supporting mechanism is arranged on the test platform, and the top of the supporting mechanism supports the electric driving mechanism; the rotating wheel, the sector gear, the cylindrical gear and the driving motor are respectively and symmetrically arranged on the left side and the right side of the electric driving mechanism;
two driving half shafts of the new energy automobile driving shaft assembly are arranged along the horizontal direction, the head ends of the two driving half shafts are respectively connected with output shafts on the left side and the right side of the electric driving mechanism, and the tail ends of the two driving half shafts are respectively connected with rotating wheels on the left side and the right side of the electric driving mechanism; the rotating wheel is provided with a rotating shaft at the center of the outer side of the rotating wheel;
the opening of the sector gear is arranged towards the electric drive mechanism, and an arc-shaped rack is arranged on the outer side of the sector gear along the circumferential direction; a circular groove is formed in the outer side of the sector gear, a through hole through which the rotating shaft can penetrate is formed in the center of the circular groove, a bearing is arranged in the circular groove, the inner ring of the bearing is connected with the rotating shaft, and the outer ring of the bearing is fixed in the circular groove; the tail end of the rotating shaft and the outer end face of the bearing are fixed by nuts;
the cylindrical gear is arranged along the vertical direction, is arranged on the outer side of the sector gear and is meshed with the sector gear;
the driving motor is arranged on the test platform, and an output shaft of the driving motor is connected with the cylindrical gear positioned on the same side.
2. The device for testing the reliable durability of the drive shaft assembly of the new energy automobile according to claim 1, further comprising a rotation limiting mechanism for limiting a maximum rotation angle of the sector gear, wherein the maximum rotation angle is greater than or equal to a limit rotation angle of the drive half shaft on the same side.
3. The device for testing the reliable durability of the new energy automobile drive shaft assembly according to claim 2, characterized in that a limiting groove is formed in the outer side of the sector gear;
the rotation limiting mechanism comprises a joint bearing, the tail end of the joint bearing is connected with the cylindrical gear, and a bearing part at the head end of the joint bearing can be arranged in the limiting groove in a rolling mode.
4. The device for testing the reliable durability of the new energy automobile drive shaft assembly according to claim 3, characterized in that the limiting groove is a T-shaped groove arranged transversely; the diameter of the head end of the joint bearing is larger than that of the tail portion of the joint bearing, and the head end of the joint bearing is clamped in the T-shaped groove.
5. The device for testing the reliable durability of the new energy automobile drive shaft assembly according to claim 4, characterized in that a screw hole is formed in the center of the top surface of the cylindrical gear downward along the vertical direction, a circular ring support is arranged around the screw hole in the top surface of the cylindrical gear along the vertical direction, and a screw hole is formed in the tail end of the knuckle bearing along the vertical direction; and the tail end of the joint bearing is fixed on the circular ring support through a bolt.
6. The device for testing the reliable durability of the new energy automobile drive shaft assembly according to claim 1, wherein a connecting plate is formed by upward protruding the central part of the top surface of the sector gear, and the circular groove is formed on the outer side of the connecting plate.
7. The device for testing the reliable durability of the new energy automobile drive shaft assembly according to claim 1, further comprising a drive motor support, wherein a chassis of the drive motor support is fixed on the test platform, and the drive motor is fixed on the top surface of the drive motor support.
8. The device for testing the reliable durability of the new energy automobile drive shaft assembly according to claim 1, wherein the supporting mechanism comprises a plurality of supporting columns, and the supporting columns comprise: the bottom plate is fixed on the test platform, and the upright column is connected with the suspension end of the electric drive mechanism.
9. The device for testing the reliable durability of the new energy automobile drive shaft assembly according to claim 8, wherein the upright column and the suspension end are fixed through a nut.
10. The reliable endurance test apparatus for a new energy vehicle drive shaft assembly according to claim 1, wherein the electric drive mechanism includes: a motor and a reducer, or comprising: a motor, a motor controller and a reducer.
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| CN202021116640.6U CN212159065U (en) | 2020-06-15 | 2020-06-15 | Reliable durability test device of new energy automobile drive shaft assembly |
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| CN202021116640.6U CN212159065U (en) | 2020-06-15 | 2020-06-15 | Reliable durability test device of new energy automobile drive shaft assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834671A (en) * | 2021-09-18 | 2021-12-24 | 徐州徐工履带底盘有限公司 | Engineering machinery crawler belt assembly testing device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834671A (en) * | 2021-09-18 | 2021-12-24 | 徐州徐工履带底盘有限公司 | Engineering machinery crawler belt assembly testing device and method |
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