CN112697463B - Durability test device and test equipment for wheel assembly - Google Patents

Abstract

The application discloses a durability test device and test equipment for a wheel assembly. The rotating hub comprises a rotating hub main body and a stop block, wherein the rotating hub main body is rotationally connected to the base, the rotating hub main body is provided with a peripheral wall surrounding the rotating axis of the rotating 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 rotating hub main body. According to the durability test device for the wheel assembly, when the durability test is carried out on the wheel assembly, when the 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 sequentially generate long-duration impact on the wheel from one side to the other side, so that the impact load of the wheel assembly in the running process can be effectively simulated; when the wheels of the wheel assembly are turned to be opposite to the impact surface of the stop block, the impact surface can provide forward impact load for the wheels, and the durability test of structures such as a wheel hub and a windage cover of the wheel assembly is realized.

Description

Durability test device and test equipment for wheel assembly

Technical Field

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

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, and the impact on the automobile during running is relieved together with the automobile suspension, so that the automobile can be guaranteed to have good riding comfort and running smoothness, good adhesiveness between the wheels and the road surface is guaranteed, the traction performance, the braking performance and the passing performance of the automobile are improved, and the weight of the automobile is borne, therefore, the important role played by the wheel assembly on the automobile is more and more emphasized. The vehicle runs under severe road conditions for a long time, the service life of the wheel assembly can be reduced, and a durability test is generally required for the wheel assembly before delivery.

However, in the conventional durability test of the wheel assembly, basically, the durability test of the structure such as the hub, the windage cover, etc. of the wheel assembly cannot be truly performed by simply rubbing the wheel of the wheel assembly to test the wear parameters of the wheel.

Disclosure of Invention

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

The embodiment of the application provides a durability test device for a wheel assembly, which comprises a base and a rotating hub. The rotating hub comprises a rotating hub main body and a stop block, the rotating hub main body is rotationally connected to the base, the rotating hub main body is provided with a peripheral wall which rotates around the rotating axis of the rotating 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 rotating 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 in the direction of the axis of rotation, the stop extending helically to the first edge and the second edge.

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

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

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 hub further includes a parallel stopper protruding from the peripheral wall, the parallel stopper being spaced apart from the first stopper and the second stopper, and a length extending direction of the parallel stopper being parallel to the rotation axis.

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

In some embodiments, the wheel adjustment suspension mechanism includes a telescoping portion and a wheel assembly mounting portion, the wheel assembly mounting portion being connected to the suspension beam by the telescoping portion, the telescoping portion being for adjusting a spacing of the wheel assembly mounting portion from the suspension beam.

In some embodiments, the wheel assembly mounting portion is ball-connected to an end of the telescoping portion remote from the cantilever beam.

In some embodiments, the wheel adjustment suspension mechanism further includes 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 mount includes a shock absorber and a wheel assembly mount connected to the telescoping portion by the shock absorber.

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

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

In some embodiments, the wheel assembly includes a wheel, a hub, and a windage cover mounted to the wheel by the hub, the wheel abutting the peripheral wall.

According to the durability test device for the wheel assembly, when the durability test is carried out on the wheel assembly, when the rotation axis of the wheel assembly is approximately parallel to the rotation axis of the rotating hub main body, as the stop blocks are arranged in a spiral mode, the side faces of the stop blocks can sequentially generate long-duration impacts on the wheels from one side to the other side, impact loads born by the wheel assembly in the driving process can be effectively simulated, in addition, when the wheels of the wheel assembly are turned to be aligned with the impact faces of the stop blocks, the stop blocks can provide forward impact loads for the wheels, so that the real environment of a vehicle in the road surface driving process is simulated, and the durability test is accurately carried out on the structures such as the wheel hubs and the windshields of the wheel assembly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view showing a structure of a wheel assembly durability test apparatus according to an embodiment of the present application;

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

FIG. 3 is a schematic view of a hub body according to an embodiment of the present application;

FIG. 4 illustrates a force diagram of a wheel assembly provided in accordance with an embodiment of the present application during a durability test;

FIG. 5 is a schematic view showing the construction of another wheel assembly durability test apparatus provided by an embodiment of the present application;

fig. 6 is a schematic view showing 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 view showing the construction of another wheel assembly durability test apparatus provided by an embodiment of the present application;

FIG. 8 is a schematic view showing a structure of a wheel adjusting suspension mechanism according to an embodiment of the present application;

FIG. 9 is a schematic view showing the construction of yet another wheel assembly durability test apparatus provided by an embodiment of the present application;

FIG. 10 is a schematic view showing a structure of a wheel assembly mounting member according to an embodiment of the present application;

FIG. 11 shows a schematic structural diagram of a test apparatus according to an embodiment of the present application;

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

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for 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 present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

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

As shown in fig. 2, in order to provide a wheel assembly 200 according to an embodiment of the present application, the wheel assembly 200 may include a wheel 210, a hub 220, a windage cover 230, and the like, and the windage cover 230 may be mounted to the wheel 210 through the 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 testing the structural strength of the wheel hub 220, the structural strength of the windage cover 230, and whether the windage cover 230 is detached. The following describes the structure of the wheel assembly durability test apparatus 100 with reference to the wheel assembly 200 as an example:

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. Wherein the first support 112 and the second support 113 may be oppositely disposed to the mounting surface 1111 for mounting the 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 substrate 111 may not be provided, and the first support member 112 and the second support member 113 may be directly mounted on the floor, which is not particularly limited herein, and may be provided according to actual needs.

Referring to fig. 1 and 3, in the present embodiment, the hub 120 includes a hub body 121 and a stopper 122, and the hub body 121 is rotatably connected to the base 110. The hub body 121 may be generally cylindrical in structure, e.g., a cylindrical structure, the hub body 121 having a peripheral wall 1211 surrounding the rotational axis of the hub body 121, wherein the peripheral wall 1211 may be disposed about the rotational axis of the hub body 121 and form a circular annulus. The peripheral wall 1211 has a first edge 1212 and a second edge 1213, wherein the first edge 1212 and the second edge 1213 are disposed substantially opposite to each other along the rotation axis of the hub main body 121, and the first edge 1212 and the second edge 1213 are both annular edges. Among them, the surface roughness of the outer peripheral wall 1211 may be set according to actual demands to simulate road surfaces having different roughness.

In the present embodiment, the hub main body 121 may be rotatably coupled between the first support 112 and the second support 113. The hub body 121 is rotatable in the first rotation direction a or the second rotation direction B. When the hub main body 121 rotates along the first rotation direction a, the wheel 210 can be driven to rotate along the second rotation direction B to simulate the backward running of the wheel 210; when the hub body 121 rotates in the second rotation direction B, the wheel 210 is driven to rotate in the first rotation direction a 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 disposed protruding on the peripheral wall 1211, and the stopper 122 is disposed spirally around the rotation axis of the hub main body 121, wherein "spirally disposed" means that the stopper 122 is wound around the rotation axis of the hub main body 121 on the peripheral wall 1211, wherein the stopper 122 may be wound around a partial area of the peripheral wall 1211, for example, the stopper 122 may be disposed around 1/3 of the entire circumference of the peripheral wall 1211 around the rotation axis of the hub main body 121, and 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 line connecting 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 °.

Further, in some embodiments, the stop 122 may be disposed around the rotational axis of the hub body 121 in a spiral around the peripheral wall 1211 one or more times, specifically, may be adjusted according to actual needs.

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

When the first blocking surface 122a or the second blocking surface 122b is set to be concave during the durability test of the wheel assembly, the impact of the wheel assembly 200 on the slope with the concave slope during the running of the vehicle can be simulated when the wheel 210 collides with the first blocking surface 122a or the second blocking surface 122 b; 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 surface during the running process of the vehicle can be simulated.

With continued reference to fig. 2 and 3, since the stop 122 is disposed helically about the rotational axis of the hub body 121, the stop 122 has a helix angle α with respect to the rotational axis of the hub body 121, where "helix angle" α may refer to an angle formed between a tangent on the stop 122 and the rotational axis of the hub body 121, for example, an angle formed between a tangent at a point Z where the first surface 122a of the stop 122 meets the second edge 1213 and the rotational axis. As an example, the helix angle α of the spiral of the stop 122 may be greater than or equal to 45 °, so that the length of the spiral of the whole stop 122 may be increased, during the endurance test of the wheel assembly, the side of the first stop surface 122a, which is close to the first position point X, may first collide with one side of the wheel 210 to impact the wheel assembly 200, because the stop 122 is spirally disposed, the first stop surface 122a extends along the spiral direction of the stop 122, and the other side of the first stop surface 122a, which is close to 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 duration of the impact of the stop 122 on the wheel assembly 200, so as to simulate the continuous impact of the wheel assembly 200 during the driving of the vehicle, and further simulate the endurance of the wheel assembly 200 after the continuous impact of the vehicle during the driving of the vehicle, so as to improve the accuracy of the endurance test result of the wheel assembly.

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

Referring to fig. 3, in some embodiments, the stop 122 may include a first stop 1221 and a second stop 1222, where the first stop 1221 and the second stop 1222 are disposed at a distance from the peripheral wall 1211, and the spiral direction of the first stop 1221 is opposite to the spiral direction of the second stop 1222, and as an example, the first stop 1221 and the second stop 1222 may be symmetrically disposed about the rotation axis, and as an example, the spiral angle α of the first stop 1221 may be approximately 45 ° and the spiral angle α of the second stop 1222 may be approximately-45 °, and may be optionally adjusted according to practical requirements.

In a wheel assembly durability test, the rotational axis of the wheel 210 may be disposed generally parallel to the rotational axis of the hub body 121, and when the hub body 121 is controlled to rotate in the first rotational direction a to simulate backward travel of the vehicle, the first stopper 1221 may first collide with the first side edge of the wheel 210 to continuously strike the wheel 210 and strike the second side edge of the wheel 210, wherein the first side edge and the second side edge refer to axially opposite side edges of the wheel 210, and the second stopper 1222 may first collide with the second side edge of the wheel 210 to continuously strike the wheel 210 and strike the first side edge of the wheel 210, such that the condition of the wheel 210 when the different side edges of the wheel 210 are struck on an actual road surface may be simulated to durability test the windage 230 and the wheel hub 220.

In another example of a durability test of the wheel assembly, when the rotational axis of the wheel 210 may be substantially parallel to one tangent line of the first stop 1221, to simulate steering of the wheel 210 in a different direction, for example, when the angle formed between the rotational axis of the wheel 210 and the rotational axis of the hub body 121 is substantially equal to the pitch angle α of the first stop 1221, the steered wheel 210 may be substantially directly opposite to the first stop 122a or the second stop 122b of the first stop 1221, such that the first stop 122a or the second stop 122b of the first stop 1221 may substantially impact the wheel 210 in a forward direction, such that the forward impact force of the first stop 1221 on the wheel 210 may be increased, thereby simulating the durability test of the wheel assembly 200 after being subjected to the forward impact during the vehicle driving.

In some embodiments, the first stop 1221 can have a first height protruding from the peripheral wall 1211 and the second stop 1222 can have a second height protruding from the peripheral wall 1211, wherein the first height can be greater than the second height, and can simulate a ramp impact of a vehicle during travel with different ramp heights during a endurance test of the wheel assembly 200, thereby simulating the endurance of the test wheel assembly 200 after the different ramp impacts. In addition, the first height may be equal to the second height, or the first height may 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 block 123, where the parallel block 123 is protruding from the peripheral wall 1211, and the parallel block 123 is spaced from the first block 1221 and the second block 1222, and a length extension direction of the parallel block 123 may be substantially parallel to a rotation axis of the hub body 121 and extends to the first edge 1212 and the second edge 1213. In a durability test of the wheel assembly, 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 may generate a forward impact force on the wheel 210 to simulate the durability of the structure such as the hub 220 and the windage cover 230 in the wheel assembly 200 after the structure receives the forward impact of the ramp during the running of the wheel 210.

In some embodiments, the block 122 is detachably disposed on the peripheral wall 1211, so that the block 122 can be replaced according to the test requirement, for example, the first block 1221, the second block 1222 and the parallel block 123 can be simultaneously installed on the peripheral wall 1211, so that any one of the first block 1221, the second block 1222 and the parallel block 123 can be detached from the peripheral wall 1211, or any two of the first block, the second block and the parallel block 123 can be detached from the peripheral wall 1211, so as to meet different test condition requirements, and the convenience of the test can be improved. In addition, in some embodiments, the stopper 122 may be integrally formed with the hub body 121 and provided on the outer peripheral wall 1211, which is not limited herein.

In the durability test of the wheel assembly, 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 sequentially generate long-duration impact on the wheel 210 from one side to the other side, so that the impact load of the wheel assembly 200 during running can be effectively simulated, in addition, 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, and the first blocking surface 122a or the second blocking surface 122b basically provides forward impact load for the wheel 210, so that the durability test of the wheel hub 220, the wind resistance cover 230 and the like under different road surface environments is realized.

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

As shown in fig. 4, in an application scenario, in the durability test of 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 retract or advance, so that the durability test can be performed on the wheel assembly 200 during the retraction or the advance, and as an example, the running direction of the wheel 210 forms angles of 45 °, 90 ° and 135 ° with the rotation axis of the hub main body 121 (defined as an entry angle of the simulated wheel assembly 200) respectively, so as to simulate the steering of the vehicle to different directions, and the durability test is performed on the wheel assembly 200. For example, the helix angle α of the first stop 1221 is 45 °, the helix angle α of the parallel stop 123 is 0 °, and the helix angle α of the second stop 1222 is 135 °. In a durability test, when the hub main body 121 rotates in the first rotation direction a, if the wheel assembly 200 is tested at an entry angle of 45 °, the first stopper 1221 can generate a forward impact on the wheel assembly 200, and the wheel assembly 200 retreats and receives a forward impact force F1 of the first stopper 1221; if the wheel assembly 200 is tested at an entry angle of 90 °, the parallel stop 123 may generate a forward impact on the wheel assembly 200, and the wheel assembly 200 is retracted and receives a forward impact force F2 from the parallel stop 123; if the wheel assembly 200 is tested at an entry angle of 135 °, the second block 1222 may generate a positive impact on the wheel assembly 200, the wheel assembly 200 is retracted and subjected to a positive impact force F3 by the second block 1222; in another durability test, when the hub main body 121 rotates in the second rotation direction B, if the wheel assembly 200 is tested at an entry angle of 45 °, the first stopper 1221 may generate a forward impact to the wheel assembly 200, and the wheel assembly 200 is advanced and receives the forward impact force F1' of the first stopper 1221; if the wheel assembly 200 is tested at an entry angle of 90 °, the parallel stop 123 may generate a forward impact on the wheel assembly 200, and the wheel assembly 200 is advanced and receives a forward impact force F2' from the parallel stop 123; if the wheel assembly 200 is tested at an entry angle of 135 deg., the second block 1222 may generate a positive impact on the wheel assembly 200, and the wheel assembly 200 is advanced and subjected to a positive impact force F3' by the second block 1222.

In the wheel assembly durability test, the wheel assembly durability test apparatus 100 drives the wheel 210 of the wheel assembly 200 to rotate so as to simulate the impact of the wheel assembly 200 on a slope, a pit and the like of a road surface in the running process of the 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 result of the wheel hub 220 and the wind resistance cover 230 is qualified is determined. As one example, when the cracking value of the wheel hub 220 is less than or equal to a preset threshold value, determining that the durability test result of the wheel hub 220 is acceptable, and when the cracking value of the wheel hub 220 is greater than the preset threshold value, determining that the durability test result of the wheel hub 220 is not acceptable; when the wind resistance cover 230 does not fall off during the durability test of the wheel assembly, it is determined that the durability test result of the wind resistance cover 230 is acceptable, and when the wind resistance cover 230 falls off during the durability test of the wheel assembly, it is determined that the durability test result of the wind resistance cover 230 is unacceptable.

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

The suspension beam 140 may be disposed opposite 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 rotational axis of the hub body 121, and the suspension beam 140 may be used to suspend the wheel adjustment 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 rotating 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 telescopic portion 151 is connected to the cantilever beam 140, and the telescopic portion 151 has a telescopic direction, which may be substantially vertical. The expansion portion 151 may be an expansion rod, an expansion spring, or the like, and is not limited thereto. 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 expansion and contraction portion 151 is shortened, the pressure between the wheel 210 and the hub 120 is reduced, and by changing the expansion and contraction direction of the expansion and contraction portion 151 to simulate the vehicle being subjected to different load forces, for example, when the length of the expansion and contraction portion 151 is extended to the maximum, the load force to which the wheel assembly 200 is subjected in the full load state of the vehicle can be simulated; when the length of the expansion and contraction portion 151 is shortened to half, the load force applied to the wheel assembly 200 in the half-load state of the vehicle can be simulated, thereby simulating the 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 test 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 to suspend the wheel assembly 200 against the hub 120.

As one embodiment, the mounting portion 160 may include a mounting base 161, a first suspension beam strut 162, and a second suspension beam strut 163. The first and second suspension struts 162 and 163 are disposed opposite to the mounting base 161, and the suspension beam 140 may be connected to an end of the first suspension strut 162 remote from the mounting base 161 and an end of the second suspension strut 163 remote from the mounting base 161, respectively. 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 hanging structure, and the mounting base 161 may be provided with a mounting opening 1611 such that the hub 120 is exposed to the surface of the mounting base 161 through the mounting opening 1611.

As 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 surface, or the suspension 140 may be suspended directly from a wall, a ceiling, or the like without providing the mounting portion 160, which is not limited thereto.

In some embodiments, the wheel assembly mounting portion 152 is ball-bonded to an end of the telescoping portion 151 remote from the cantilever beam 140, such as the wheel assembly mounting portion 152 is ball-bonded to the telescoping portion 151 by a ball-end hinge 153. The wheel assembly mounting portion 152 may rotate around a plurality of radial directions of the ball-end hinge 153, for example, the wheel assembly mounting portion 152 may rotate 360 ° around one radial direction of the ball-end hinge 153, which is substantially parallel to the vertical direction, so as to adjust the driving direction of the wheel 210, and may swing vertically with respect to the telescopic portion 151 so as to adjust an angle of the rotation axis of the wheel assembly 200 with respect to the rotation axis of the hub main body 121, that is, an inclination angle of the wheel 210 with respect to a horizontal plane, that is, a friction angle of the wheel 210 with respect to the hub main body 121, so as to simulate a durability test of the hub 220 and the wind shield 230 under different friction angles of the wheel 210.

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 being coupled to the telescoping portion 151 by the shock absorber 1521, the wheel assembly mounting member 1522 being adapted to mount the wheel assembly 200.

The shock absorber 1521 may be a damping shock absorber, a spring, or the like, and the shock absorber 1521 is connected to the expansion and contraction portion 151, and since the vehicle is generally provided with the shock absorber 1521 to absorb shock of 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 actual running of the vehicle can be simulated and tested in the wheel assembly durability test.

In some embodiments, the shock absorber 1521 may also be directly disposed in the wheel assemblies 200, and typically, each wheel assembly 200 to be tested is mounted with the shock absorber 1521, so during the testing process of the wheel assembly durability test apparatus 100, the shock absorber 1521 of each wheel assembly 200 to be tested may also be tested, so as to implement the synchronous testing of the durability of the wheel hub 220, the windage cover 230, and the shock absorber 1521 by detecting whether the shock absorber 1521 has cracks, breaks, damping capacity thereof, and the like.

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

Referring again to fig. 7, in some embodiments, the wheel adjustment suspension mechanism 150 may further include a sliding connection portion 154, the sliding connection portion 154 being slidably connected to the suspension beam 140, and an end of the telescopic portion 151 remote from the wheel assembly mounting portion 152 being connected to the sliding connection portion 154, the sliding connection portion 154 being slidable along an extending direction of the suspension beam 140 to adjust a position of the telescopic portion 151 along the extending direction of the suspension beam 140, thereby adjusting a contact position of the wheel assembly 200 with respect to the peripheral wall 1211.

Referring to fig. 8, in some embodiments, the wheel adjustment suspension mechanism 150 may further include a suspension mount 155, the telescopic portion 151 may be connected to the suspension beam 140 by the suspension mount 155, an end of the telescopic portion 151 remote from the suspension beam 140 is connected to the wheel assembly mount 1523, and the telescopic portion 151 is used for adjusting a distance between the wheel assembly mount 1523 and the suspension beam 140. The suspension mount 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 connection, which is not limited herein.

Referring to fig. 9, in some embodiments, the wheel assembly durability test apparatus 100 may further include a frame simulator 170, a pillar 180, and a slider 190. The upright post 180 may be disposed on the mounting base 161, the upright post 180 may be disposed substantially vertically, the slide carriage 190 is slidably connected to the upright post 180 to slide substantially vertically, the frame simulating portion 170 is mounted on the slide carriage 190, and the position of the frame simulating portion 170 relative to the peripheral wall 1211 can be adjusted when the slide carriage 190 slides vertically. The frame simulation portion 170 may be adapted to be connected to the wheel assembly 200, may be used to simulate a sub-frame, and may simulate a durability test of the wheel assembly 200 during running of the vehicle by providing the frame simulation portion 170. In the durability test of the wheel assembly, the frame simulation portion 170 may be connected to the wheel assembly mounting member 1522 (as shown in fig. 6), and the relative position of the frame simulation portion with respect to the pillar 180 may be adjusted by the slider 190, so as to adjust the distance between the wheel assembly 200 and the peripheral wall 1211, and further adjust the contact area between the wheel assembly 200 and the peripheral 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 member 1522 may include a wheel assembly mounting frame 21, a knuckle 22, a brake disc caliper 23, and a control arm 24, wherein one end of the wheel assembly mounting frame 21 is connected to an end of the shock absorber 1521 remote from the wheel assembly mounting seat 1523, the brake disc caliper 23 is connected to the other end of the wheel assembly mounting frame 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 frame 21 may be used to mount the wheel assembly 200, the knuckle 22 may be used to steer the wheel assembly 200, the brake disc caliper 23 may be used to clamp the wheel assembly 200 and generate braking force to the wheel assembly 200, and the control arm 24 may be used to control the brake disc caliper 23, so as to simulate durability tests of the wheel assembly 200 under different control conditions.

In the durability test device 100 for a wheel assembly provided by the application, when the durability test is performed on the wheel assembly 200, the wheel 210 is contacted with the peripheral wall 1211 of the rotating hub 120, and the rotating hub 120 is controlled to rotate so as to drive the wheel assembly 200 to rotate, because the stop block 122 is spirally arranged, the side surface of the stop block 122 can sequentially generate long-duration impact on the wheel 210 from one side to the other side, the impact load of the wheel assembly 200 in the running process can be effectively simulated, in addition, when the wheel 210 of the wheel assembly 200 turns to be aligned with the impact surface of the stop block 122, the impact surface can realize forward 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, an embodiment of the present application further provides a testing apparatus 10, which includes a wheel assembly 200 and the wheel assembly durability testing device 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 peripheral wall 1211 for testing the durability of the wheel assembly 200.

In an application scenario, when the test device 10 is used for performing a durability test on the wheel assembly 200, the wheel 210 abuts against the outer peripheral wall of the hub main body 121, the hub main body 121 is controlled to rotate, the hub main body 121 drives the wheel 210 to rotate so as to simulate the running state of the wheel 210 in the vehicle, after the rotation of the hub main body 121 is completed, the test result of the wheel assembly 200 is obtained, the test result may include a cracking value of the wheel hub 220 and the falling number of times of the wind resistance cover 230, and whether the durability test of the wheel hub 220 and the wind resistance cover 230 is qualified is determined according to the obtained test result and a preset durability judgment standard. The determination of whether the durability test of the hub 220 and the windage cover 230 is acceptable may refer to the related content in the foregoing embodiment, and will not be repeated herein.

Referring to fig. 12, an embodiment of the present application further provides a method for testing durability of a wheel assembly, which may be used for durability of a wheel assembly based on the above-mentioned device for testing durability of a wheel assembly, wherein the method for testing durability of a wheel assembly may include steps S110 to S130.

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

The provided 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 test device, for example, the wind resistance cover can be arranged on a wheel assembly mounting part of the wheel assembly durability test device.

Step S120: the entering angle of the wheel is adjusted, the wheel is contacted with the peripheral wall, and the rotation of the rotating hub is controlled.

The wheel can be rotated to the direction to be tested, and the angle formed between the wheel and the rotation axis of the rotating hub is controlled so as to control the contact angle between the wheel and the peripheral wall, namely, the entering angle of the wheel (the included angle between the running direction of the wheel and the rotation 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 blocks can be simulated by adjusting the entering angle of the wheels. For example: when the screw angle of the stop block is alpha, the entering angle of the wheel is adjusted to be 90-alpha, the stop block can provide forward impact on the wheel, and the durability test of the wheel assembly when the wheel is impacted by the stop block in the forward direction 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 backward running of the wheel assembly can be simulated, 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 forward running of the wheel assembly can be simulated, 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 of the hub body, a number of rotations, and a rotation speed, 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 peripheral wall of the rotation hub main body at intervals, when the rotation hub main body rotates according to a first rotation direction A, wheels can be respectively controlled to abut against the rotation hub at an entering angle of 45 degrees, 90 degrees and 135 degrees, and durability tests after forward impact of the first stop block, the second stop block and the parallel stop block can be respectively simulated when a vehicle retreats; when the rotating hub main body rotates according to the second rotating direction B, the wheel can be respectively controlled to abut against the rotating hub at an entering angle of 45 degrees, 90 degrees and 135 degrees, and the durability test after forward impact of the first stop block, the second stop block and the parallel stop block can be simulated when the wheel advances.

In some embodiments, when the hub rotates according to the second rotation direction B, the hub may be controlled to rotate at a rotation number M and a rotation speed (m±2) of kilometers per hour (km/h) according to the wheel flatness of the wheel, and the wheel may be controlled to abut against the hub at an entry angle of 45 °, 90 ° and 135 °, respectively, wherein the rotation number M and the rotation speed M may be preset according to the test requirements.

As one embodiment, when the wheel flatness ratio satisfies: when the flatness ratio is less than or equal to 50% and less than 60%, the rotating hub can be controlled to rotate at the rotation number 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 DEG, 90 DEG and 135 deg.

As one embodiment, when the wheel flatness ratio satisfies: when the flatness ratio is less than 50%, the rotating hub can be controlled to rotate at the rotation number M and the rotation speed (M-10) +/-2 km/h, and the wheels are respectively controlled to abut against the rotating hub at the entering angles of 45 DEG, 90 DEG and 135 deg.

In some embodiments, when the rotating hub rotates according to the first rotation direction a, the rotating hub can be controlled to rotate at a rotation number N and a rotation speed n±2km/h, and the wheels are respectively controlled to abut against the rotating hub at an entering angle of 45 °, 90 ° and 135 °. In testing, applicants have found that the durability validation results when the wheel assembly is inverted (wheel reverse) are generally independent of the wheel flatness ratio. The number of rotation turns N and the rotation speed N can be preset according to 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 main body is completed, a test result of the wheel assembly may be obtained, and whether the durability test of the hub and the windage cover is qualified may be determined according to the obtained cracking value of the hub, whether the windage cover falls off, and the durability judgment standard. The preset durability judgment standard comprises that the cracking value of the hub is smaller than or equal to 10 millimeters (mm), and the wind resistance cover falls off without falling off. The test result at least comprises a cracking value of the hub and the falling times of the wind resistance cover.

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

According to the durability test device for the wheel assembly, when the durability test is carried out on the wheel assembly, the wheel is contacted with the peripheral wall, the rotation of the rotating hub main body is controlled, whether the durability of the wheel assembly is qualified or not is determined according to the obtained test result and the preset durability test standard, when the rotation axis of the wheel assembly is approximately parallel to the rotation axis of the rotating hub main body, as the stop blocks are spirally arranged, the side surfaces of the stop blocks can sequentially generate long-duration impacts on the wheel from one side to the other side, the impact load born by the wheel assembly in the driving process can be effectively simulated, and in addition, when the steering direction of the wheel assembly is aligned with the impact surface of the stop blocks, the impact surface can realize the forward impact load on the wheel, and the durability test on the wheel hub, the windage cover and the like can be realized.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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 embodiments or examples. 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 should be understood that the terms "length," "above," "front," "top," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", a second "may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "on" a second feature may include both first and second features being in direct contact, as well as first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in 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: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. A wheel assembly durability test apparatus, comprising:

a base; and

the hub comprises a hub main body and a stop block, the hub main body is rotationally connected to the base, the hub main body is provided with a peripheral wall surrounding the rotation axis of the hub main body, the peripheral wall of the hub is used for being in contact with a wheel, the stop block is convexly arranged on the peripheral wall, the stop block surrounds the rotation axis of the hub main body and is spirally arranged, the edge of the peripheral wall is provided with a first edge and a second edge, the first edge and the second edge are oppositely arranged along the direction of the rotation axis, the stop block spirally extends to the first edge and the second edge, the stop block comprises a first stop block and a second stop block, the first stop block and the second stop block are arranged at intervals, and the spiral direction of the first stop block is opposite to the spiral direction of the second stop block.

2. The wheel assembly durability test apparatus of claim 1, wherein the first stop has a first height protruding from the peripheral wall, the second stop has a second height protruding from the peripheral wall, and the first height is greater than the second height.

3. The wheel assembly durability test apparatus according to any one of claims 1-2, wherein the rotating hub further includes a parallel stopper protruding from the peripheral wall, the parallel stopper being disposed at a distance from the first stopper and the second stopper, and a length extending direction of the parallel stopper being parallel to the rotation axis.

4. The wheel assembly durability test apparatus according to any one of claims 1-2, further comprising 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.

5. The wheel assembly durability test apparatus according to claim 4, wherein the wheel adjustment suspension mechanism includes a telescoping portion and a wheel assembly mounting portion, the wheel assembly mounting portion being connected to the suspension beam through the telescoping portion, the telescoping portion being for adjusting a distance between the wheel assembly mounting portion and the suspension beam.

6. The wheel assembly durability test apparatus according to claim 5, wherein the wheel assembly mounting portion is ball-connected to an end of the telescoping portion remote from the suspension beam.

7. The wheel assembly durability test apparatus according to claim 5, wherein the wheel adjustment suspension mechanism further includes a slide 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 slide connection portion.

8. The wheel assembly durability test apparatus according to claim 5, wherein the wheel assembly mounting portion includes a shock absorber and a wheel assembly mounting member, the wheel assembly mounting member being connected to the telescoping portion through the shock absorber.

9. The wheel assembly durability test apparatus according to any one of claims 1-2, further comprising a frame simulating portion, a pillar, and a slider slidably connected to the pillar, the frame simulating portion being mounted to the slider, the frame simulating portion being adapted to be connected to a wheel assembly.

10. A test apparatus comprising a wheel assembly and a wheel assembly durability test device according to any one of claims 1 to 9, the wheel assembly being disposed opposite the rotating hub, the wheel assembly being abutted against the peripheral wall for testing the durability of the wheel assembly.

11. The test apparatus of claim 10, wherein the wheel assembly comprises a wheel, a hub, and a windage cover mounted to the wheel by the hub, the wheel abutting the peripheral wall.