CN112697463A

CN112697463A - Wheel assembly durability test device and test equipment

Info

Publication number: CN112697463A
Application number: CN202110048913.0A
Authority: CN
Inventors: 韦仲宁
Original assignee: Guangzhou Xiaopeng Motors Technology Co Ltd; Guangzhou Chengxingzhidong Automotive Technology Co., Ltd
Current assignee: Guangzhou Xiaopeng Motors Technology Co Ltd; Guangzhou Chengxingzhidong Automotive Technology Co., Ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-04-23
Anticipated expiration: 2041-01-14
Also published as: CN112697463B

Abstract

The application discloses wheel subassembly durability test device and test equipment, wheel subassembly durability test device include base and commentaries on classics hub. The rotary hub comprises a rotary hub main body and a stop block, the rotary hub main body is rotatably connected to the base, the rotary hub main body is provided with an outer peripheral wall surrounding the rotary axis of the rotary hub main body, the stop block is convexly arranged on the outer peripheral wall, and the stop block is spirally arranged around the rotary axis of the rotary hub main body. When the wheel assembly durability test device is used for carrying out durability test on the wheel assembly, when the wheel rotation axis of the wheel assembly is approximately parallel to the rotation axis of the rotating hub main body, the side face of the stop block can generate impact for a long time from one side to the other side on the wheel in sequence, and impact load on the wheel assembly in the running process can be effectively simulated; when the wheel of the wheel assembly turns to be aligned with the impact surface of the stop block, the impact surface can provide positive impact load for the wheel, and the durability test of structures such as a wheel hub and a wind resistance cover of the wheel assembly is realized.

Description

Wheel assembly durability test device and test equipment

Technical Field

The application relates to the technical field of vehicle testing, in particular to a wheel assembly durability testing device and testing equipment.

Background

The wheel assembly is one of important parts of the automobile, the wheels of the wheel assembly are directly contacted with the road surface, the wheel assembly and the automobile suspension are used for relieving the impact on the automobile during running, the automobile can be guaranteed to have good riding comfort and running smoothness, good adhesion between the wheels and the road surface is guaranteed, the traction, braking and passing performance of the automobile are improved, and the weight of the automobile is borne, so that the important function of the wheel assembly on the automobile is more and more emphasized by people. The vehicle is driven under bad road conditions for a long time, the service life of the wheel assembly can be reduced, and the wheel assembly is required to be subjected to a durability test before leaving a factory.

However, in the conventional durability test of the wheel assembly, basically, the wear parameters of the wheel are tested by simply rubbing the wheel of the wheel assembly, and the durability test cannot be truly performed on the structures of the wheel hub, the wind resistance cover, and the like of the wheel assembly.

Disclosure of Invention

In view of the above problems, the present application provides a wheel assembly durability test apparatus and a test device, which are used to solve the above technical problems.

The embodiment of the application provides a wheel assembly durability test device, including base and commentaries on classics hub. The rotary hub comprises a rotary hub main body and a stop block, the rotary hub main body is rotatably connected to the base, the rotary hub main body is provided with a peripheral wall around the rotating axis of the rotary hub main body, the stop block is convexly arranged on the peripheral wall, and the stop block is spirally arranged around the rotating axis of the rotary hub main body.

In some embodiments, the edge of the peripheral wall has a first edge and a second edge, the first edge and the second edge being disposed opposite to each other in the direction of the rotation axis, and the stopper extends spirally to the first edge and the second edge.

In some embodiments, the helix angle of the stop helix is greater than or equal to 45 °.

In some embodiments, the stopper includes a first stopper and a second stopper, the first stopper is spaced apart from the second stopper, and a spiral direction of the first stopper is opposite to a spiral direction of the second stopper.

In some embodiments, the first stop has a first height protruding from the peripheral wall, and the second stop has a second height protruding from the peripheral wall, the first height being greater than the second height.

In some embodiments, the rotating hub further comprises a parallel stop block protruding from the outer peripheral wall, the parallel stop block is spaced apart from the first stop block and the second stop block, and the length extending direction of the parallel stop block is parallel to the rotation axis.

In some embodiments, the wheel assembly durability testing apparatus further comprises a suspension beam disposed opposite the hub, and a wheel-adjusting suspension mechanism suspended from the suspension beam for suspending the wheel assembly against the hub.

In some embodiments, the wheel adjusting suspension mechanism includes a telescoping portion and a wheel assembly mounting portion, the wheel assembly mounting portion is connected to the suspension beam by the telescoping portion, and the telescoping portion is used to adjust a distance between the wheel assembly mounting portion and the suspension beam.

In some embodiments, the wheel assembly mounting portion is ball-jointed to an end of the telescoping portion distal from the suspension beam.

In some embodiments, the wheel adjusting suspension mechanism further comprises a sliding connection portion slidably connected to the suspension beam, and an end of the telescoping portion remote from the wheel assembly mounting portion is connected to the sliding connection portion.

In some embodiments, the wheel assembly mounting portion includes a shock absorber and a wheel assembly mount connected to the telescopic portion by the shock absorber.

In some embodiments, the wheel assembly durability test apparatus further comprises a frame simulating portion, a pillar, and a slide slidably connected to the pillar, the frame simulating portion being mounted to the slide, the frame simulating portion being adapted to be connected to the wheel assembly.

The embodiment of the application also provides a test device, which comprises a wheel assembly and the wheel assembly durability test device provided by the previous embodiment, wherein the wheel assembly is arranged opposite to the rotating hub, and the wheel assembly abuts against the outer peripheral wall and is used for testing the durability of the wheel assembly.

In some embodiments, the wheel assembly includes a wheel, a wheel hub, and a wind resistance cover mounted to the wheel via the wheel hub, the wheel abutting the peripheral wall.

The utility model provides a wheel assembly durability test device, when carrying out the durability test to the wheel assembly, when the wheel axis of rotation of wheel assembly is roughly parallel with the axis of rotation of commentaries on classics hub main part, because the dog is the spiral setting, the side of dog can be followed one side to the opposite side and produced the long impact of duration to the wheel in proper order, can simulate the impact load that the wheel assembly received at the process of traveling effectively, in addition, when the wheel of wheel assembly turned to when just facing with the impact of dog, the dog can provide forward impact load to the wheel, with the true environment of simulation vehicle in the road surface travel process, thereby accurately carry out the durability test to structures such as wheel hub, the windage cover of wheel assembly.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram illustrating a wheel assembly durability testing apparatus according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram illustrating a wheel assembly in a disassembled state according to an embodiment of the present application;

FIG. 3 illustrates a schematic structural view of a hub body provided by an embodiment of the present application;

FIG. 4 is a force diagram of a wheel assembly during a durability test according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram illustrating another wheel assembly durability testing apparatus provided in an embodiment of the present application;

fig. 6 is a schematic structural view of a wheel assembly mounting portion and a wheel assembly in a disassembled state according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram illustrating another wheel assembly durability testing apparatus provided in an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a wheel suspension adjustment mechanism provided by an embodiment of the present application;

fig. 9 is a schematic structural diagram illustrating a further wheel assembly durability testing apparatus provided in an embodiment of the present application;

FIG. 10 is a schematic structural view of a wheel assembly mount provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram illustrating a testing apparatus provided in an embodiment of the present application;

fig. 12 is a schematic flow chart illustrating a method for testing durability of a wheel assembly according to an embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

Referring to fig. 1, an embodiment of the present application provides a wheel assembly durability testing apparatus 100, which includes a base 110 and a rotating hub 120, wherein the rotating hub 120 is rotatably connected to the base 110.

As shown in fig. 2, for the wheel assembly 200 provided in the embodiment of the present application, the wheel assembly 200 may include a wheel 210, a wheel hub 220, a wind resistance cover 230, and the like, and the wind resistance cover 230 may be mounted to the wheel 210 through the wheel hub 220. The wheel assembly durability test apparatus 100 is used for performing a durability test on the wheel assembly 200, wherein the wheel assembly durability test at least includes a test of the structural strength of the wheel hub 220, the structural strength of the wind resistance cover 230, whether the wind resistance cover 230 falls off, and the like. The following describes the structure of the wheel assembly durability test apparatus 100 with reference to the wheel assembly 200:

referring to fig. 1 again, in the present embodiment, the base 110 may include a substrate 111, a first supporting member 112 and a second supporting member 113, and the substrate 111 may have a substantially plate-shaped structure, wherein the substrate 111 includes a mounting surface 1111 and a mounting back surface 1112 facing away from each other. The first support 112 and the second support 113 may be disposed opposite to the mounting surface 1111 for mounting the rotating hub 120.

In some embodiments, the base 110 may be provided with only the first support 112 or the second support 113; in addition, the base plate 111 is not required to be provided, and both the first support 112 and the second support 113 may be directly mounted on the floor, which is not specifically limited herein and may be specifically provided according to actual requirements.

Referring to fig. 1 and 3, in the present embodiment, the hub 120 includes a hub main body 121 and a stopper 122, and the hub main body 121 is rotatably connected to the base 110. The hub main body 121 may be of a generally cylindrical structure, for example, a cylindrical structure, and the hub main body 121 has an outer peripheral wall 1211 surrounding the rotational axis of the hub main body 121, wherein the outer peripheral wall 1211 may be disposed around the rotational axis of the hub main body 121 and forms a circular annulus. The edge of the outer peripheral wall 1211 has a first edge 1212 and a second edge 1213, where the first edge 1212 and the second edge 1213 are disposed substantially opposite to each other in the direction of the rotation axis of the hub main body 121, and both the first edge 1212 and the second edge 1213 are annular edges. The surface roughness of the outer peripheral wall 1211 can be set according to actual requirements, so that road surfaces with different roughness can be simulated.

In this embodiment, the hub body 121 can be rotatably connected between the first support 112 and the second support 113. The hub body 121 is rotatable in either a first rotational direction a or a second rotational direction B. When the hub body 121 rotates along the first rotation direction a, the wheel 210 can be driven to rotate along the second rotation direction B, so as to simulate backward driving of the wheel 210; when the hub body 121 rotates along the second rotation direction B, the wheel 210 is driven to rotate along the first rotation direction a, so as to simulate the forward running of the wheel 210. Wherein the first rotational direction a is opposite to the second rotational direction B.

Referring to fig. 1 and 3, in the present embodiment, the stopper 122 is protruded from the outer circumferential wall 1211, the stopper 122 is spirally disposed around the rotation axis of the hub main body 121, in this case, "spirally disposed" means that the stopper 122 is spirally wound around the outer peripheral wall 1211 around the rotational axis of the hub main body 121, in which the stopper 122 may be wound around a partial area of the outer circumferential wall 1211, for example, the stopper 122 may be provided around 1/3 of the entire circumference of the outer circumferential wall 1211 around the rotational axis of the hub main body 121, as an example, as shown in fig. 3, the stopper 122 may be screwed around the rotation axis of the hub main body 121 to a second position point Y of the second edge 1213 at a first position point X of the first edge 1212, and a connection line between the first position point X and the second position point Y may form an included angle with the rotation axis, wherein the included angle may be greater than 0 ° and less than or equal to 90 °.

In addition, in some embodiments, the stopper 122 may be spirally wound around the rotation axis of the hub main body 121 for one or more circles of the outer peripheral wall 1211, and may be adjusted according to actual requirements.

Referring to fig. 3, in the present embodiment, the stopper 122 may have a first stopping surface 122a, a second stopping surface 122b and a connecting top surface 122c, and the first stopping surface 122a and the second stopping surface 122b are disposed at the outer peripheral wall 1211 at intervals. The first blocking surface 122a and the second blocking surface 122b are both disposed spirally around the rotation axis of the hub main body 121, and both are substantially spiral surfaces, and the connecting top surface 122c may be disposed opposite to the outer peripheral wall 1211 and connected between the first blocking surface 122a and the second blocking surface 122b, wherein the connecting top surface 122c is substantially disposed spirally around the rotation axis of the hub main body 121, the spiral directions of the first blocking surface 122a, the second blocking surface 122b and the connecting top surface 122c are substantially the same, and the lengths of the first blocking surface 122a, the second blocking surface 122b and the connecting top surface 122c extending spirally may be substantially the same. The first blocking surface 122a may be concave towards the second blocking surface 122b to form a concave surface, or convex towards a direction away from the second blocking surface 122b to form a convex surface, and correspondingly, the second blocking surface 122b may also be concave towards the first blocking surface 122a to form a concave surface, or convex towards a direction away from the first blocking surface 122a to form a convex surface, so as to simulate a slope surface with different shapes on a road surface, and may be specifically adjusted according to actual requirements.

When the first blocking surface 122a or the second blocking surface 122b is set to be a concave surface in the wheel assembly durability test process, when the wheel 210 collides with the first blocking surface 122a or the second blocking surface 122b, the impact of a slope with a concave surface on the wheel assembly 200 in the vehicle running process can be simulated; when the first blocking surface 122a or the second blocking surface 122b is set to be convex, when the wheel 210 collides with the first blocking surface 122a or the second blocking surface 122b, the impact of the wheel assembly 200 on a slope with a convex slope surface during the running process of the vehicle can be simulated, and by adopting the above structural design, the vehicle can be simulated on different slope road conditions, so as to test the durability of the wheel hub 220 and the wind resistance cover 230 in the wheel assembly 200.

With continued reference to fig. 2 and 3, since the stopper 122 is disposed spirally around the rotation axis of the hub body 121, a helix angle α is formed between the stopper 122 and the rotation axis of the hub body 121, wherein the helix angle α may refer to an included angle formed between a tangent line on the stopper 122 and the rotation axis of the hub body 121, for example, an included angle formed between a tangent line at a position Z where the first current surface 122a of the stopper 122 meets the second edge 1213 and the rotation axis. As an example, the spiral angle α of the spiral of the stopper 122 may be greater than or equal to 45 °, so that the spiral length of the whole stopper 122 may be increased, during the durability test of the wheel assembly, one side of the first stopper surface 122a near the first position point X may first collide with one side of the wheel 210 to impact the wheel assembly 200, and since the stopper 122 is spirally disposed, the first stopper surface 122a extends along the spiral direction of the stopper 122, and the other side of the first stopper surface 122a near the second position point Y collides with the other side of the wheel 210, so that an impact force with a longer duration may be provided to the wheel assembly 200, thereby increasing the impact duration of the stopper 122 on the wheel assembly 200 to simulate the continuous impact of the wheel assembly 200 during the driving of the vehicle, and further simulating the durability of the wheel assembly 200 after the continuous impact of a slope during the driving of the vehicle, the accuracy of the durability test results of the wheel assembly can be improved.

In some embodiments, the spiral angle α of the stopper 122 may be less than 45 °, which may increase the impact angle between the wheel 210 and the stopper 122 in the wheel assembly durability test (where the impact angle is defined as the angle formed by the tangent of the stopper 122 and the driving direction of the wheel), and the first stopper surface 122a or the second stopper surface 122b of the stopper 122 may generate a positive impact on the wheel, thereby increasing the positive impact force of the stopper 122 on the wheel, and further simulating the durability of the wheel assembly 200 when the wheel assembly is subjected to a larger impact force during the driving process of the vehicle.

Referring to fig. 3, in some embodiments, the stopper 122 may include a first stopper 1221 and a second stopper 1222, the first stopper 1221 and the second stopper 1222 are spaced apart from each other and disposed on the outer circumferential wall 1211, wherein a spiral direction of the first stopper 1221 is opposite to a spiral direction of the second stopper 1222, and as an example, the first stopper 1221 and the second stopper 1222 may be disposed symmetrically with respect to the rotation axis, and as an example, a spiral angle α of the first stopper 1221 may be substantially 45 °, and a spiral angle α of the second stopper 1222 may be substantially-45 °, and further, the spiral angle α may be arbitrarily adjusted according to actual requirements.

In a durability test of a wheel assembly, the rotation axis of the wheel 210 may be substantially parallel to the rotation axis of the hub body 121, when the hub body 121 is controlled to rotate in the first rotation direction a, so as to simulate backward traveling of the vehicle, since the spiral direction of the first stopper 1221 is opposite to the spiral direction of the second stopper 1222, the first stopper 1221 may first collide with the first side edge of the wheel 210 to perform a continuous impact on the wheel 210, and may collide with the second side edge of the wheel 210, wherein the first side edge and the second side edge refer to two axially opposite side edges of the wheel 210, the second stopper 1222 may first collide with the second side edge of the wheel 210 to perform a continuous impact on the wheel 210, and may collide with the first side edge of the wheel 210, so as to simulate a situation where different side edges of the wheel 210 are impacted on an actual road surface, to perform durability tests on the windage cover 230 and the wheel hub 220.

In another wheel assembly durability test, when the rotation axis of the wheel 210 is substantially parallel to a tangent of the first block 1221, for simulating the turning of the wheel 210 to a different direction, for example, when the wheel 210 is turned to a position where the included angle formed between the rotation axis of the wheel 210 and the rotation axis of the hub main body 121 is substantially equal to the helix angle α of the first block 1221, the turned wheel 210 may be substantially opposite to the first blocking surface 122a or the second blocking surface 122b of the first block 1221, so that the first blocking surface 122a or the second blocking surface 122b of the first block 1221 can substantially positively impact the wheel 210, and thus the positive impact force of the first block 1221 on the wheel 210 can be increased, thereby simulating the durability test after the wheel assembly 200 is subjected to a hill positive impact during the driving of the vehicle.

In some embodiments, the first stopper 1221 may have a first height protruding from the outer circumferential wall 1211, and the second stopper 1222 may have a second height protruding from the outer circumferential wall 1211, wherein the first height may be greater than the second height, so as to simulate the durability of the wheel assembly 200 after being impacted by different slopes during the durability test of the wheel assembly 200. In addition, the first height may also be equal to the second height, or the first height may also be greater than the second height, which is not limited herein.

In some embodiments, as shown in fig. 3, the hub 120 may further include a parallel stopper 123, the parallel stopper 123 is protruded from the outer circumferential wall 1211, the parallel stopper 123 is spaced apart from the first stopper 1221 and the second stopper 1222, and a length of the parallel stopper 123 may extend substantially parallel to the rotation axis of the hub body 121 and extend to the first edge 1212 and the second edge 1213. In a wheel assembly durability test, for example, when the rotation axis direction of the wheel 210 is consistent with the rotation axis direction of the hub main body 121, the parallel stopper 123 can generate a positive impact force on the wheel 210, so as to simulate and test the durability of the structures such as the wheel hub 220, the wind resistance cover 230 and the like in the wheel assembly 200 after being impacted by the positive slope during the running of the wheel 210.

In some embodiments, the stopper 122 is detachably disposed on the peripheral wall 1211 to replace the stopper 122 according to the test requirement, for example, the first stopper 1221, the second stopper 1222 and the parallel stopper 123 may be simultaneously mounted on the peripheral wall 1211, and any one of the first stopper 1221, the second stopper 1222 and the parallel stopper 123 may be detachably mounted on the peripheral wall 1211, or any two of the first stopper 1221, the second stopper 1222 and the parallel stopper 123 may be detachably mounted on the peripheral wall 1211 to meet the requirements of different test conditions, so as to improve the convenience of the test. In some embodiments, the stopper 122 may be integrally formed with the hub body 121 and disposed on the outer circumferential wall 1211, which is not limited herein.

In the wheel assembly durability test, when the first blocking surface 122a or the second blocking surface 122b collides with the wheel 210 of the wheel assembly 200, the first blocking surface 122a or the second blocking surface 122b can generate impacts on the wheel 210 sequentially from one side to the other side for a long time, which can effectively simulate the impact load applied to the wheel assembly 200 during driving, and in addition, when the wheel 210 of the wheel assembly 200 is turned to be opposite to the first blocking surface 122a or the second blocking surface 122b, the first blocking surface 122a or the second blocking surface 122b basically provides a positive impact load to the wheel 210, so as to realize the durability test on the wheel hub 220, the wind blocking cover 230 and the like under different road surface environments.

In some embodiments, the wheel assembly durability testing apparatus 100 may further include a driving part, wherein the driving part is used for driving the hub main body 121 to rotate, and the driving part may be a motor or an engine.

As shown in fig. 4, in an application scenario, in performing a durability test on the wheel assembly 200, the driving portion drives the hub main body 121 to rotate along the first rotation direction a or the second rotation direction B to drive the wheel assembly 200 to move backward or forward, so as to perform the durability test on the wheel assembly 200 during backward movement or forward movement, as an example, the driving direction of the wheel 210 and the rotation axis of the hub main body 121 form an included angle of 45 °, 90 ° and 135 ° (defined as an entering angle of the simulated wheel assembly 200) respectively, so as to perform the durability test on the wheel assembly 200 when the simulated vehicle turns to different directions. For example, the helix angle α of the first stopper 1221 is 45 °, the helix angle α of the parallel stopper 123 is 0 °, and the helix angle α of the second stopper 1222 is 135 °. In a durability test, when the wheel assembly 200 is tested at an entry angle of 45 ° while the hub body 121 is rotated in the first rotational direction a, the first stopper 1221 may generate a forward impact to the wheel assembly 200, and the wheel assembly 200 is retracted and subjected to the forward impact of the first stopper 1221 as F1; if the wheel assembly 200 is tested at an entrance angle of 90 °, the parallel stop 123 may generate a forward impact on the wheel assembly 200, and the forward impact force of the wheel assembly 200 after moving backward and being received by the parallel stop 123 is F2; if the wheel assembly 200 is tested at a 135 ° entry angle, the second stop 1222 can generate a positive impact on the wheel assembly 200, and the wheel assembly 200 retreats and receives a positive impact force F3 from the second stop 1222; in another durability test, when the wheel assembly 200 is tested at an entry angle of 45 ° while the hub body 121 is rotated in the second rotational direction B, the first stopper 1221 may generate a positive impact to the wheel assembly 200, and the wheel assembly 200 advances and receives the positive impact F1' from the first stopper 1221; if the wheel assembly 200 is tested at a 90 ° entrance angle, the parallel stop 123 may generate a positive impact on the wheel assembly 200, and the wheel assembly 200 advances and receives a positive impact force F2' from the parallel stop 123; if the wheel assembly 200 is tested at a 135 entry angle, the second stop 1222 may have a positive impact on the wheel assembly 200, and the wheel assembly 200 is advanced and subjected to a positive impact force F3' from the second stop 1222.

In the wheel assembly durability test, the wheel 210 of the wheel assembly 200 is driven to rotate by the wheel assembly durability test device 100 to simulate the impact of a slope, a pit and the like of a road on the wheel assembly 200 during the running process of a vehicle, after the test, the cracking value of the wheel hub 220 and whether the wind resistance cover 230 falls off are checked, and whether the durability test results of the wheel hub 220 and the wind resistance cover 230 are qualified is determined. As an example, when the crack value of the wheel hub 220 is less than or equal to a preset threshold value, the durability test result of the wheel hub 220 is determined to be qualified, and when the crack value of the wheel hub 220 is greater than the preset threshold value, the durability test result of the wheel hub 220 is determined to be unqualified; when the wind resistance cover 230 does not fall off in the wheel assembly durability test process, the durability test result of the wind resistance cover 230 is determined to be qualified, and when the wind resistance cover 230 falls off in the wheel assembly durability test process, the durability test result of the wind resistance cover 230 is determined to be unqualified.

Referring to fig. 5, in some embodiments, the wheel assembly endurance testing apparatus 100 may further include a suspension beam 140 and a wheel adjusting suspension mechanism 150.

The suspension beam 140 may be disposed opposite to the hub 120, and the suspension beam 140 may have a length direction, wherein the length direction of the suspension beam 140 may be substantially parallel to the rotation axis of the hub main body 121, and the suspension beam 140 may be used to suspend the wheel adjusting suspension mechanism 150.

The wheel adjustment suspension mechanism 150 may be suspended from the suspension beam 140 for suspending the wheel assembly 200 against the hub 120.

In some embodiments, the wheel adjustment suspension mechanism 150 may include a telescoping portion 151 and a wheel assembly mounting portion 152. The expansion part 151 is connected to the suspension beam 140, and the expansion part 151 has an expansion direction, which may be substantially vertical. The telescopic portion 151 may be a telescopic rod or a telescopic spring, and is not limited herein. The wheel assembly mounting portion 152 may be connected to the suspension beam 140 through a telescopic portion 151, the telescopic portion 151 being used to adjust a distance between the wheel assembly mounting portion 152 and the suspension beam 140, and in a durability test of the wheel assembly 200, when the telescopic portion 151 is extended in a telescopic direction, a pressure between the wheel 210 and the hub 120 is increased; when the telescopic part 151 is shortened, the pressure between the wheel 210 and the rotating hub 120 is reduced, and the extension amount of the telescopic part 151 in the telescopic direction is changed to simulate that the vehicle is subjected to different loading forces, for example, when the length of the telescopic part 151 is extended to the maximum, the loading force of the wheel assembly 200 in the full-load state of the vehicle can be simulated; when the length of the telescopic portion 151 is shortened to a half, it is possible to simulate a load force received by the wheel assembly 200 in a half-loaded state of the vehicle, thereby simulating a durability test of the wheel assembly 200 when the vehicle is under different loads.

Referring to fig. 5, in some embodiments, the wheel assembly durability testing apparatus 100 may further include a mounting portion 160, and the suspension beam 140 is connected to the mounting portion 160, such that the suspension beam 140 is used for suspending the wheel assembly 200 against the hub 120.

As an embodiment, the mounting portion 160 may include a mounting base 161, a first suspension strut 162, and a second suspension strut 163. The first suspension member pillar 162 and the second suspension member pillar 163 are disposed opposite to the mounting base 161, and the suspension member 140 may be connected to an end of the first suspension member pillar 162 away from the mounting base 161 and an end of the second suspension member pillar 163 away from the mounting base 161. The mounting base 161 may be disposed opposite to the base 110, the mounting base 161 may be disposed above the base 110 by a supporting structure or a suspension structure, and the mounting base 161 may be opened with a mounting opening 1611 such that the hub 120 is exposed to a surface of the mounting base 161 through the mounting opening 1611.

In another embodiment, the mounting portion 160 may be provided with only the first and second suspension struts 162 and 163, and the first and second suspension struts 162 and 163 may be provided on the base plate 111 or the floor, or the mounting portion 160 may not be provided, and the suspension 140 may be directly hung on a wall, a ceiling, or the like, and is not limited thereto.

In some embodiments, wheel assembly mounting portion 152 is ball-jointed to an end of telescoping portion 151 distal from suspension beam 140, as is wheel assembly mounting portion 152 is ball-jointed to telescoping portion 151 via ball joint 153. The wheel assembly mounting portion 152 can rotate around multiple radial directions of the ball joint 153, for example, the wheel assembly mounting portion 152 can rotate 360 degrees around one radial direction of the ball joint 153, which is substantially parallel to the vertical direction, so as to adjust the driving direction of the wheel 210, and can also swing relative to the vertical direction of the telescopic portion 151 so as to adjust the included angle of the rotation axis of the wheel assembly 200 relative to the rotation axis of the hub main body 121, that is, the inclination angle of the wheel 210 relative to the horizontal plane, that is, the friction angle of the wheel 210 relative to the hub main body 121, so that the durability test of the wheel hub 220 and the wind resistance cover 230 under different friction angles of the wheel 210 can be simulated.

Referring to fig. 5 and 6, in some embodiments, the wheel assembly mounting portion 152 may include a shock absorber 1521 and a wheel assembly mounting member 1522, the wheel assembly mounting member 1522 is connected to the telescopic portion 151 through the shock absorber 1521, and the wheel assembly mounting member 1522 is used for mounting the wheel assembly 200.

The shock absorber 1521 may be a damping shock absorber or a spring, the shock absorber 1521 is connected to the expansion part 151, and since the vehicle is generally provided with the shock absorber 1521 to absorb shock to the wheel assembly 200, when the wheel assembly durability test apparatus 100 is provided with the shock absorber 1521, the durability of the wheel assembly 200 during the actual running of the vehicle may be simulated and tested in the wheel assembly durability test.

In some embodiments, the shock absorbers 1521 may also be directly disposed in the wheel assemblies 200, and each wheel assembly 200 to be tested is usually provided with the shock absorber 1521, so that, in the testing process of the wheel assembly durability testing apparatus 100, the shock absorber 1521 of each wheel assembly 200 to be tested may also be tested, and the durability of the wheel hub 220, the wind resistance cover 230, and the shock absorbers 1521 may be tested synchronously by detecting whether the shock absorber 1521 cracks, breaks, the damping capacity thereof, and the like.

In some embodiments, as shown in fig. 7 and 8, wheel assembly mounting portion 152 may further include a wheel assembly mounting seat 1523, one end of wheel assembly mounting seat 1523 is connected to one end of telescopic portion 151 away from suspension beam 140 through a ball joint hinge 153, wheel assembly mounting seat 1522 is connected to the other end of wheel assembly mounting seat 1523 through a shock absorber 1521, and ball joint hinge 153 is used for adjusting the suspension angle of shock absorber 1521 relative to suspension beam 140. As an embodiment, as shown in fig. 8, the wheel assembly mounting seat 1523 may be provided with a mounting cavity 1524, and the shock absorber 1521 may be partially fixedly disposed in the mounting cavity 1524.

Referring to fig. 7 again, in some embodiments, the wheel adjusting suspension mechanism 150 may further include a sliding connection portion 154, the sliding connection portion 154 is slidably connected to the suspension beam 140, and an end of the telescopic portion 151 away from the wheel assembly mounting portion 152 is connected to the sliding connection portion 154, and the sliding connection portion 154 may slide along the extending direction of the suspension beam 140 to adjust the position of the telescopic portion 151 along the extending direction of the suspension beam 140, so as to adjust the contact position of the wheel assembly 200 with respect to the outer circumferential wall 1211.

Referring to fig. 8, in some embodiments, the wheel adjusting suspension mechanism 150 may further include a suspension mounting member 155, the telescopic portion 151 may be connected to the suspension beam 140 through the suspension mounting member 155, an end of the telescopic portion 151 away from the suspension beam 140 is connected to a wheel assembly mounting seat 1523, and the telescopic portion 151 is used for adjusting a distance between the wheel assembly mounting seat 1523 and the suspension beam 140. The suspension mounting member 155 may be directly connected to the suspension beam 140 or connected to the sliding connection portion 154, or may be connected to the suspension beam 140 by a snap-fit method, which is not limited herein.

Referring to fig. 9, in some embodiments, the wheel assembly durability testing apparatus 100 may further include a frame simulating part 170, a pillar 180, and a slider 190. The pillar 180 may be disposed on the mounting base 161, the pillar 180 may be disposed substantially vertically, the sliding seat 190 is slidably connected to the pillar 180 to slide substantially vertically, the frame simulating unit 170 is mounted on the sliding seat 190, and when the sliding seat 190 slides vertically, the position of the frame simulating unit 170 relative to the outer peripheral wall 1211 may be adjusted. The frame simulation part 170 may be adapted to be connected to the wheel assembly 200, may be used to simulate a subframe, and by providing the frame simulation part 170, a durability test of the wheel assembly 200 during running of the vehicle may be simulated. In the wheel assembly durability test, the frame simulation unit 170 may be connected to the wheel assembly mounting member 1522 (shown in fig. 6), and the slide carriage 190 may adjust the relative position thereof with respect to the pillar 180, so as to adjust the distance between the wheel assembly 200 and the outer circumferential wall 1211, and further adjust the contact area between the wheel assembly 200 and the outer circumferential wall 1211, that is, the friction area of the wheel 210, so as to simulate the durability test of the wheel assembly 200 under different wheel friction areas.

Referring to fig. 10, in some embodiments, the wheel assembly mounting assembly 1522 may include a wheel assembly mounting bracket 21, a knuckle 22, a brake disc caliper 23 and a control arm 24, one end of the wheel assembly mounting bracket 21 is connected to one end of the shock absorber 1521 away from the wheel assembly mounting seat 1523, the brake disc caliper 23 is connected to the other end of the wheel assembly mounting bracket 21 through the knuckle 22, the brake disc caliper 23 is connected to the frame simulation portion 170 through the control arm 24, the wheel assembly mounting bracket 21 may be used for mounting the wheel assembly 200, the knuckle 22 may be used for steering control of the wheel assembly 200, the brake disc caliper 23 may be used for clamping the wheel assembly 200 and generating braking force to the wheel assembly 200, and the control arm 24 may be used for controlling the brake disc caliper 23, so as to simulate durability tests of the wheel assembly 200 under different control conditions.

The wheel assembly durability test device 100 provided by the application is used for contacting the wheel 210 with the peripheral wall 1211 of the rotating hub 120 and controlling the rotating hub 120 to rotate so as to drive the wheel assembly 200 to rotate when a durability test is carried out on the wheel assembly 200, because the stopper 122 is spirally arranged, the side surface of the stopper 122 can generate long-lasting impact on the wheel 210 from one side to the other side in sequence, the impact load received by the wheel assembly 200 in the driving process can be effectively simulated, in addition, when the wheel 210 of the wheel assembly 200 is turned to be opposite to the impact surface of the stopper 122, the impact surface can realize positive impact load on the wheel 210, and the durability test on the wheel hub 220, the wind resistance cover 230 and the like can be realized.

Referring to fig. 11, the embodiment of the present application further provides a testing apparatus 10, which includes a wheel assembly 200 and the wheel assembly durability testing apparatus 100 provided in the foregoing embodiment, wherein the wheel assembly 200 is disposed opposite to the hub 120, and the wheel assembly 200 abuts against the outer peripheral wall 1211 for testing the durability of the wheel assembly 200.

In an application scenario, when the wheel assembly 200 is subjected to a durability test by using the test apparatus 10, the wheel 210 abuts against an outer peripheral wall of the hub main body 121 to control the hub main body 121 to rotate, the hub main body 121 drives the wheel 210 to rotate so as to simulate a driving state of the wheel 210 in a vehicle, after the hub main body 121 rotates, a test result of the wheel assembly 200 is obtained, where the test result may include a cracking value of the wheel hub 220, a dropping frequency of the wind resistance cover 230, and the like, and whether the durability test of the wheel hub 220 and the wind resistance cover 230 is qualified or not is determined according to the obtained test result and a preset durability judgment standard. For reference, relevant contents in the foregoing embodiments can be referred to for determining whether the durability test of the wheel hub 220 and the wind resistance cover 230 is qualified, and details are not described here.

Referring to fig. 12, an embodiment of the present application further provides a method for testing durability of a wheel assembly, which can be used for durability of the wheel assembly based on the wheel assembly durability testing apparatus, wherein the method for testing durability of a wheel assembly includes steps S110 to S130.

Step S110: a wheel assembly to be tested and the wheel assembly durability test apparatus are provided.

The wheel assembly to be tested can comprise a wheel and a wind resistance cover arranged on the wheel, wherein the wind resistance cover is fixedly arranged on one side of the wheel, and the wheel assembly to be tested is arranged on a wheel assembly durability testing device, for example, the wheel assembly to be tested can be arranged on a wheel assembly mounting part of the wheel assembly durability testing device.

Step S120: and adjusting the entering angle of the wheel, contacting the wheel with the peripheral wall and controlling the rotating hub to rotate.

The wheel can be rotated to the direction to be tested, and the angle formed between the wheel and the rotating axis of the rotating hub is controlled so as to control the contact angle between the wheel and the outer peripheral wall, namely, the entering angle of the wheel (the included angle between the driving direction of the wheel and the rotating axis of the rotating hub main body) is adjusted. In the durability test process of the wheel assembly, the durability test of the wheel assembly under the impact of different angles of the stop block can be simulated by adjusting the entering angle of the wheel. For example: when the spiral angle of the stop block is alpha, the entry angle of the wheel is adjusted to be 90-alpha, the stop block can provide positive impact to the wheel, and the durability test of the wheel assembly when the wheel is subjected to the positive impact of the stop block can be simulated.

The wheel is contacted with the peripheral wall of the rotating hub main body, the rotating hub main body can rotate along a first rotating direction A or a second rotating direction B, when the rotating hub main body rotates along the first rotating direction A, the wheel assembly can be driven to rotate along the second rotating direction B, the wheel assembly can be simulated to retreat and run, when the rotating hub main body rotates along the second rotating direction B, the wheel assembly can be driven to rotate along the first rotating direction A, the wheel assembly can be simulated to advance and run, and the first rotating direction A is opposite to the second rotating direction B. After the wheel is brought into contact with the outer peripheral wall, the hub main body can be controlled to rotate in accordance with a preset rotation parameter. Wherein the rotation parameters may include a rotation direction, a number of rotations, and a rotation speed of the hub body, and the rotation direction includes a first rotation direction a and a second rotation direction B.

In an application scene, a first stop block forming an included angle of 45 degrees with a rotation axis, a second stop block forming an included angle of 135 degrees with the rotation axis and a parallel stop block forming an included angle of 90 degrees with the radial direction of the rotation hub main body are respectively arranged on the outer peripheral wall of the rotation hub main body at intervals, when the rotation hub main body rotates along a first rotation direction A, wheels can be respectively controlled to abut against the rotation hub at the entering angles of 45 degrees, 90 degrees and 135 degrees, and a durability test after forward impact of the first stop block, the second stop block and the parallel stop block is respectively carried out when a vehicle backs can be simulated; when the hub main body rotates according to the second rotating direction B, the wheels can be controlled to abut against the hub at the entering angles of 45 degrees, 90 degrees and 135 degrees respectively, and the durability test after the wheels are subjected to forward impact of the first stop block, the second stop block and the parallel stop block respectively when the wheels move forwards can be simulated.

In some embodiments, when the hub rotates in the second rotation direction B, the hub may be controlled to rotate at a rotation number M and a rotation speed (M ± 2) kilometer per hour (km/h) according to a wheel flatness ratio of the wheel, and the wheel may be controlled to abut against the hub at entrance angles of 45 °, 90 ° and 135 °, respectively, wherein the rotation number M and the rotation speed M may be preset according to a test requirement.

As an embodiment, when the wheel flat ratio satisfies: when the flatness ratio is more than or equal to 50% and less than 60%, the rotating hub can be controlled to rotate at the number of rotation turns M and the rotation speed (M-5) km/h, and the wheels are respectively controlled to abut against the rotating hub at the entering angles of 45 degrees, 90 degrees and 135 degrees.

As an embodiment, when the wheel flat ratio satisfies: when the flat rate is less than 50%, the rotating hub can be controlled to rotate by the number of turns M and the rotating speed (M-10) ± 2km/h, and the wheels are respectively controlled to abut against the rotating hub by the entering angles of 45 degrees, 90 degrees and 135 degrees.

In some embodiments, when the hub rotates in the first rotation direction a, the hub may be controlled to rotate at a number of rotations N and a rotation speed N ± 2km/h, and the wheel may be controlled to abut against the hub at an entry angle of 45 °, 90 ° and 135 °, respectively. In testing, the applicant found that the durability validation results when the wheel assembly is reversed (wheel back travel) are generally independent of wheel flattening. The number of turns N and the rotation speed N can be preset according to the test requirements.

Step S130: and determining whether the durability of the wheel assembly is qualified or not according to the test result and a preset durability judgment standard.

In this embodiment, after the rotation of the hub body is completed, the test result of the wheel assembly can be obtained, and whether the durability tests of the wheel hub and the wind resistance cover are qualified or not can be respectively determined according to the obtained crack value of the wheel hub, whether the wind resistance cover is detached or not and the durability judgment standard. The preset durability judgment standard comprises that the cracking value of the wheel hub is less than or equal to 10 millimeters (mm), and the wind resistance cover is not dropped. The test result at least comprises the cracking value of the wheel hub and the falling frequency of the wind resistance cover.

When the obtained cracking value of the wheel hub is less than or equal to 10mm, determining that the durability test of the wheel hub is qualified; when the obtained cracking value of the wheel hub is larger than 10mm, determining that the durability test of the wheel hub is unqualified; when the falling of the wind resistance cover is not obtained in the test process, determining that the durability test of the wind resistance cover is qualified; and when the wind resistance cover is obtained to fall off in the testing process, determining that the durability test of the wind resistance cover is unqualified.

The utility model provides a wheel subassembly durability test device, when carrying out the durability test to the wheel subassembly, through with wheel and periphery wall contact, and control the hub main part and rotate, and according to the test result that obtains and preset durability test standard, confirm whether the durability of wheel subassembly is qualified, when the axis of rotation of wheel subassembly is roughly parallel with the axis of rotation of hub main part, because the dog is the spiral setting, the side of dog can be followed one side to the opposite side and produced the longer impact of duration to the wheel in proper order, can simulate effectively the impact load that the wheel subassembly received in the course of traveling, in addition, the wheel of wheel subassembly turns to when just right with the impact surface of dog, the impact surface can realize forward impact load to the wheel, can realize the durability test to wheel hub and windage cover etc..

In the description herein, references to the description of the terms "one embodiment," certain embodiments, "" an illustrative embodiment, "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present application, it is to be understood that the terms "length," "above," "front," "top," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the present application. Furthermore, the terms "first", "second" and "first" 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 "may explicitly or implicitly include one or more of the feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "above" the second feature may comprise the first and second features being in direct contact, or the first and second features being not in direct contact but in contact with each other through another feature therebetween. Also, the first feature being "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A wheel assembly durability test apparatus, comprising:

a base; and

the rotary hub comprises a rotary hub main body and a stop block, the rotary hub main body is rotatably connected to the base, the rotary hub main body is provided with an outer peripheral wall around the rotary axis of the rotary hub main body, the stop block is arranged on the outer peripheral wall in a protruding mode, and the stop block surrounds the rotary axis of the rotary hub main body and is arranged in a spiral mode.

2. The apparatus for testing durability of a wheel assembly according to claim 1, wherein the edge of the outer peripheral wall has a first edge and a second edge, the first edge and the second edge being disposed opposite to each other in the direction of the rotation axis, the stopper extending spirally to the first edge and the second edge.

3. The apparatus for testing durability of a wheel assembly according to claim 1, wherein a helix angle of the stopper helix is greater than or equal to 45 °.

4. The apparatus for testing durability of a wheel assembly according to claim 1, wherein the stopper includes a first stopper and a second stopper, the first stopper being spaced apart from the second stopper, and a spiral direction of the first stopper being opposite to a spiral direction of the second stopper.

5. The apparatus for testing durability of a wheel assembly according to claim 4, wherein the first stopper has a first height protruding from the outer peripheral wall, and the second stopper has a second height protruding from the outer peripheral wall, the first height being greater than the second height.

6. The apparatus for testing durability of a wheel assembly according to any one of claims 1 to 5, wherein the hub further comprises a parallel stopper protruding from the outer circumferential wall, the parallel stopper being spaced apart from the first stopper and the second stopper, and a longitudinal extension direction of the parallel stopper being parallel to the rotation axis.

7. The wheel assembly endurance testing apparatus according to any one of claims 1 to 5, further comprising a suspension beam disposed opposite to the hub, and a wheel adjustment suspension mechanism suspended from the suspension beam for suspending the wheel assembly against the hub.

8. The wheel assembly durability test apparatus according to claim 7, wherein the wheel adjusting suspension mechanism includes a telescopic portion and a wheel assembly mounting portion, the wheel assembly mounting portion is connected to the suspension beam through the telescopic portion, and the telescopic portion is used for adjusting a distance between the wheel assembly mounting portion and the suspension beam.

9. The apparatus for testing durability of a wheel assembly according to claim 8, wherein the wheel assembly mounting portion is ball-jointed to an end of the expansion portion remote from the suspension beam.

10. The apparatus for testing durability of a wheel assembly according to claim 8, wherein the wheel adjusting suspension mechanism further comprises a sliding connection portion slidably connected to the suspension beam, and an end of the expansion portion remote from the wheel assembly mounting portion is connected to the sliding connection portion.

11. The apparatus for testing durability of a wheel assembly according to claim 8, wherein the wheel assembly mounting portion includes a shock absorber and a wheel assembly mount, the wheel assembly mount being connected to the expansion portion through the shock absorber.

12. The wheel assembly endurance testing apparatus according to any one of claims 1 to 5, further comprising a frame simulating portion, a pillar, and a slide, the slide being slidably connected to the pillar, the frame simulating portion being mounted to the slide, the frame simulating portion being adapted to be connected to a wheel assembly.

13. A test apparatus comprising a wheel assembly disposed opposite to the hub, the wheel assembly abutting against the outer peripheral wall for testing durability of the wheel assembly, and the wheel assembly durability test apparatus according to any one of claims 1 to 12.

14. The test apparatus of claim 13, wherein the wheel assembly includes a wheel, a wheel hub, and a wind resistance cover mounted to the wheel via the wheel hub, the wheel abutting the peripheral wall.