Wheel rim pendulum collision test device

Abstract

The utility model belongs to the field of automobile performance testing, and particularly relates to a wheel rim pendulum collision testing device which comprises a supporting frame, a wheel mounting base and a pendulum iron ball. A wheel mounting base is arranged at the bottom of the supporting frame, and a pendulum iron ball is arranged at the top of the supporting frame. The wheel mounting base can adjust the collision position of the wheel, and the support frame is provided with a graduated scale for recording the experimental result, thereby achieving the purpose and effect of equivalently replacing the real collision between the wheel and an obstacle in simulation. According to the utility model, the development period of the product is shortened, the experiment cost in the evaluation process is reduced, and the practical value is considered, and meanwhile, the operation is simple and convenient, the stability is high, and the influence by the external environment is not easily caused.

Description

Technical Field

[0001] This utility model belongs to the field of automotive performance testing, specifically relating to a wheel flange pendulum collision testing device. Background Technology

[0002] The significance of automotive wheel flange impact strength testing lies in examining and evaluating whether the inner and outer flanges of a vehicle undergo plastic deformation due to external force after a collision with a road obstacle while the vehicle is traveling at high speed. In more severe cases, the wheel may crack, leading to tire leakage. For wheels, a highly replaceable laboratory testing environment can be used to simulate the impact. This method utilizes a pendulum-like motion of an iron ball to convert gravitational potential energy into impact kinetic energy, thus mimicking the real-world testing environment. The entire testing device is simple to construct, and its physical principles are easily understood. Utility Model Content

[0003] This invention proposes a wheel flange pendulum collision testing device to solve the problem of complex and difficult wheel simulation in the prior art.

[0004] To achieve the above objectives, the present invention proposes the following technical solution:

[0005] A wheel flange pendulum collision testing device includes a support frame, a wheel mounting base, and a pendulum iron ball;

[0006] The supporting frame is a portal frame, including a top horizontal plate, a bottom horizontal plate and a vertical plate, wherein the top horizontal plate is connected to the bottom horizontal plate through the vertical plate;

[0007] The wheel mounting base is set on the bottom horizontal plate, and the pendulum iron ball is set on the top horizontal plate by a suspension rope;

[0008] The wheel mounting base is equipped with a wheel adapter plate.

[0009] Preferably, the top horizontal and vertical plates of the support frame are provided with scales.

[0010] Preferably, the wheel adapter plate is fixed to the wheel mounting base by fastening bolts, and the wheel is placed and rotated by the fastening bolts.

[0011] Preferably, the wheel mounting base includes a base and a support frame, the base is fixedly connected to a bottom horizontal plate, and the support frame is connected to a wheel adapter plate;

[0012] The support frame is provided with several adjustment holes and adjustment bolts, and the adjustment bolts fix the support frame to the base through any of the adjustment holes.

[0013] Preferably, a lifting rope is connected to the top horizontal plate via a hook, and a sliding groove is provided on the top horizontal plate, through which the hook is connected to the top horizontal plate.

[0014] Preferably, the pendulum ball is provided with a traction rope.

[0015] Preferably, the mass of the pendulum ball is one-tenth of the rated load of the target wheel.

[0016] The advantages of this utility model are:

[0017] This utility model provides a wheel flange pendulum collision testing device, which uses a pendulum iron ball to test the collision energy of the wheel. It is equipped with an adjustable collision position base and a scale for recording, so as to achieve the purpose and effect of equivalent substitution for the real collision between the wheel and the obstacle in the simulation, evaluate the collision resistance performance of the wheel flange, reduce the product development cycle, and reduce road test resources and inspection costs. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 A schematic diagram of a wheel flange pendulum collision testing device;

[0020] Figure 2 A partial schematic diagram of a wheel flange pendulum collision testing device;

[0021] Figure 3 This is a diagram showing the location of the wheel collision. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0023] The following detailed description is exemplary and intended to provide further detailed explanation of the present invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this invention.

[0024] Please see Figure 1 As shown, this utility model proposes a wheel flange pendulum collision testing device, which includes three main parts: a support frame 7, a wheel mounting base 5, and a pendulum iron ball 11.

[0025] The supporting frame 7 is a door-shaped frame, including a top horizontal plate, a bottom horizontal plate and a vertical plate, wherein the top horizontal plate is connected to the bottom horizontal plate through the vertical plate;

[0026] The bottom surface of the wheel mounting base 5 is square and it is fixedly installed on the bottom horizontal plate of the support frame 7. The wheel mounting base includes a base and a support frame. The base is fixedly connected to the bottom horizontal plate, and the support frame is connected to the wheel adapter plate. The support frame is connected to the base through adjusting bolts 13. The support frame is provided with several adjusting holes. By changing the position of the adjusting bolts, the height of the support frame can be changed, and the test position can be adjusted to meet the size and parameter requirements of different wheels 1.

[0027] like Figure 2 As shown, a wheel adapter plate 3 is provided on the wheel mounting base 5, and the wheel adapter plate 3 is fixed by fastening bolts 4; the wheel 1 is fixed on the wheel adapter plate 3 by wheel connecting bolts 2, and the wheel includes an outer rim 101 and an inner rim 102.

[0028] The wheel adapter plate 3 can be replaced and adjusted according to the bolt hole size of different test wheels 1 to realize the installation of wheels 1 of different sizes; by loosening the fastening bolt 4 and rotating the wheel 1, the collision contact direction between the wheel 1 and the pendulum iron ball 11 can be changed.

[0029] An adjustable hook 8 is provided on the top horizontal plate of the support frame 7. The adjustable hook 8 is connected to the support frame 7 through a movable plate. The adjustable hook 8 is connected to the pendulum ball 11 through a suspension rope 10. By adjusting the position of the adjustable hook 8, it can adapt to different lengths of suspension rope 10.

[0030] The top horizontal and vertical plates of the support frame 7 are equipped with scales 901 to record collision test data. The pendulum ball 11 is also connected to a traction rope 12. The traction rope 12, in conjunction with the scales 901, can adjust the different initial falling heights of the pendulum ball 11. After the pendulum ball 11 completes one collision with the wheel rim of the wheel 1, the traction rope 12 can also be used to quickly pull up the pendulum ball 11 to prevent secondary collisions.

[0031] The pendulum iron ball 11 can be replaced according to different collision energy test requirements. Generally, the weight of the pendulum iron ball 11 is set to 0.1 times the rated load of the wheel.

[0032] In one specific embodiment, the wheel mounting base 5 is mounted on the bottom horizontal plate of the support frame 7 by fixing bolts.

[0033] In one specific embodiment, the collision test position of the wheel also includes the rim at the spoke p1 position and the rim at the window p2 position, such as... Figure 3 As shown.

[0034] In one specific embodiment, a sliding groove is provided on the top horizontal plate, and the hook 8 is connected to the top horizontal plate through the sliding groove.

[0035] The specific working process of this utility model is as follows:

[0036] Calculate the required collision energy E, pendulum ball weight m, collision velocity v, and initial height based on the test requirements and formula. Collision height ;

[0037] The wheel mounting base 5 is mounted on the support frame 7 using fixing bolts 6. The appropriate wheel adapter plate 3 is mounted on the wheel mounting base 5 using fastening bolts 4 and the fastening bolts 4 are tightened. The wheel 1 is connected to the wheel adapter plate 3 using several wheel connecting bolts 2, which is equivalent to the installation of the actual vehicle wheel and brake disc.

[0038] Loosen the fastening bolt 4 and rotate the wheel 1 to adjust it so that the collision position of the pendulum ball 11 is the same as required. Then tighten the fastening bolt 4 again. Loosen the adjusting bolt 13 on the wheel mounting base 5, adjust the wheel 1 to the appropriate height, and then tighten the adjusting bolt 13 again. The height is determined to be the collision height of the wheel rim required for the test. ;

[0039] Select the appropriate pendulum ball 11 according to the requirements, use the suspension rope 10 to hang the pendulum ball 11 on the adjustable hook 8 of the support frame 7, and move the adjustable hook 8 to the appropriate position, and select the appropriate length of the suspension rope 10 and the traction rope 12.

[0040] Using the ruler 901 and the traction rope 12, the pendulum ball 11 is lifted to the calculated initial height. Manually release the traction rope 12 to allow the pendulum ball 11 to complete its downward swing and collide with the required wheel rim position. Quickly grab the traction rope 12 to prevent the pendulum ball 11 from causing a secondary collision with the wheel rim.

[0041] After the test was completed, wheel 1 was removed for crack inspection and measurement of impact deformation.

[0042] The parameter calculation method for collision testing incorporates the principle of energy conservation, where collision energy is:

[0043]

[0044] Collision speed is:

[0045]

[0046] Where: E is the collision energy, in J; m is the weight of the pendulum ball, in kg; v is the collision velocity, in... / s; This is the initial height. The collision height is in meters (m); g is the acceleration due to gravity (m). /

[0047] Table 1 records the collision energy E parameter obtained under different height differences and hammer weights. The parameters can be selected and determined according to the actual situation of the wheels.

[0048]

[0049] Table 1

[0050] This invention proposes using a pendulum ball to test the collision energy of a wheel, along with an adjustable base for the collision position and a scale for recording. This achieves the purpose and effect of simulating an equivalent collision between a wheel and an obstacle, evaluating the collision resistance performance of the wheel flange, reducing product development cycle, and lowering road test resources and inspection costs.

[0051] This invention satisfies the requirements of rationality and scientificity in wheel testing methods, while also offering advantages such as ease of operation, high testing stability, and immunity to environmental influences.

[0052] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A wheel flange pendulum collision testing device, characterized in that, Includes a support frame, wheel mounting bases, and pendulum iron balls; The supporting frame is a portal frame, including a top horizontal plate, a bottom horizontal plate and a vertical plate, wherein the top horizontal plate is connected to the bottom horizontal plate through the vertical plate; The wheel mounting base is set on the bottom horizontal plate, and the pendulum iron ball is set on the top horizontal plate by a suspension rope; The wheel mounting base is equipped with a wheel adapter plate.

2. The wheel flange pendulum collision testing device as described in claim 1, characterized in that, The top horizontal and vertical plates of the support frame are equipped with scales.

3. The wheel flange pendulum collision testing device as described in claim 1, characterized in that, The wheel adapter plate is fixed to the wheel mounting base by fastening bolts, and the wheel is placed and rotated by the fastening bolts.

4. The wheel flange pendulum collision testing device as described in claim 1, characterized in that, The wheel mounting base includes a base and a support frame. The base is fixedly connected to the bottom horizontal plate, and the support frame is connected to the wheel adapter plate. The support frame is provided with several adjustment holes and adjustment bolts, and the adjustment bolts fix the support frame to the base through any of the adjustment holes.

5. The wheel flange pendulum collision testing device as described in claim 1, characterized in that, The top horizontal plate is connected to a lifting rope via a hook, and the top horizontal plate is provided with a sliding groove through which the hook is connected to the top horizontal plate.

6. The wheel flange pendulum collision testing device as described in claim 1, characterized in that, The pendulum ball is equipped with a traction rope.

7. The wheel flange pendulum collision testing device as described in claim 1, characterized in that, The mass of the pendulum ball is one-tenth of the rated load of the target wheel.

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