A vehicle wheel hub bending fatigue life tester

Abstract

The utility model belongs to the field of testing machine, and relates to automobile wheel hub, especially a kind of automobile wheel hub bending fatigue life testing machine, including stand, tire simulation fixture, hydraulic oil cylinder, hinged seat, control arm, still include positioning support, axial locating seat;The positioning support includes upper support plate, and the upper support plate is provided with upper recess, and the upper recess one end is not closed, and the tire simulation fixture is set in the lower of upper support plate, and the tire simulation fixture is provided with upper through-hole, and the upper recess is passed with vertical screw rod in upper through-hole, and the vertical screw rod is connected with several nuts;The positioning support includes vertical support plate, and the vertical support plate includes vertical through slot, and the axial locating seat is connected in the lower of tire simulation fixture, and the axial locating seat is provided with lower recess, and the lower recess lower end is not closed, and the vertical through slot is passed with axial screw rod in lower recess, and the axial screw rod is also connected with several nuts.

Description

Technical Field

[0001] This utility model belongs to the field of testing machines, and relates to automobile wheel hubs, and more particularly to an automobile wheel hub bending fatigue life testing machine. Background Technology

[0002] Application CN201320461379.7 discloses a front wheel hub bending fatigue test fixture, including a tire simulation fixture, a vertical loading fixture, a lateral loading fixture, a control arm ball joint fixing fixture, a shock absorber simulation fixture, a ball joint fixing fixture, and a ball joint component. The tire simulation fixture is polygonal and fixedly connected to the front wheel hub. The vertical loading fixture is fixed to the upper side of the tire simulation fixture, and the lateral loading fixture is fixed to the lower side of the tire simulation fixture. However, there is a problem: when connecting the shock absorber simulation fixture to the wheel hub, since both the shock absorber simulation fixture and the wheel hub are movable, both need to be grasped simultaneously to align their holes before inserting the bolts. Therefore, it is not easy for a single person to connect the two; at least two people are required to operate it, making it quite cumbersome. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a mechanical wheel hub bending fatigue life testing machine.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automobile wheel hub bending fatigue life testing machine, including a column, a tire simulation fixture, a hydraulic cylinder, a hinge seat, a control arm, and also a positioning bracket and an axial positioning seat;

[0005] The positioning bracket includes an upper support plate with an upper groove. One end of the upper groove is not closed. The tire simulation fixture is located below the upper support plate and has an upper through hole. A vertical screw passes through the upper groove and the upper through hole, and the vertical screw is connected to several nuts.

[0006] The positioning bracket includes a vertical support plate, the vertical support plate includes a vertical through groove, the axial positioning seat is connected to the bottom of the tire simulation fixture, the axial positioning seat is provided with a lower groove, the lower end of the lower groove is not closed, the vertical through groove and the lower groove are connected by an axial screw, and several nuts are also connected to the axial screw.

[0007] Preferably, the vertical screw and the longitudinal screw are also provided with several pads.

[0008] Preferably, the upper end of the vertical support plate is connected to an upper support plate, and the lower end of the vertical support plate is connected to a lower support plate.

[0009] Preferably, an upper rib plate connects the upper support plate and the vertical support plate, and a lower rib plate connects the lower support plate and the vertical support plate.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] This invention features a positioning bracket. After connecting the wheel hub and the tire simulation fixture, a vertical or axial screw is used to position the tire simulation fixture on the positioning bracket. This ensures the wheel hub's position is fixed when connecting the wheel hub and the hydraulic cylinder. The operator can then rotate the hydraulic cylinder to align it with the wheel hub's hole before inserting bolts for connection. This allows for single-person setup testing. This invention is easy to operate, has a simple structure, and is easy to manufacture and use. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A perspective view of an automotive wheel hub bending fatigue life testing machine;

[0014] Figure 2 This is a side view of an automotive wheel hub bending fatigue life testing machine.

[0015] In the above figures, 1. Column; 2. Tire simulation fixture; 3. Hydraulic cylinder; 4. Hinge seat; 5. Control arm; 6. Wheel hub; 7. Positioning bracket; 8. Axial positioning seat; 9. Upper support plate; 10. Upper groove; 11. Vertical screw; 12. Vertical support plate; 13. Vertical through groove; 14. Axial screw; 15. Pad; 16. Lower support plate; 17. Lower rib plate. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] like Figure 1 , Figure 2 As shown, an automobile wheel hub bending fatigue life testing machine includes a column 1, a tire simulation clamp 2, a hydraulic cylinder 3, a hinge seat 4, and a control arm 5. The connection relationship of the above components is described in the prior art, and will not be described in detail here. In order to facilitate the connection between the wheel hub 6 and the hydraulic cylinder 3, this utility model also includes a positioning bracket 7 and an axial positioning seat 8.

[0019] The positioning bracket 7 includes a horizontally arranged upper support plate 9, the upper support plate 9 is provided with an upper groove 10, one end of the upper groove 10 is not closed, the tire simulation clamp 2 is arranged below the upper support plate 9, the tire simulation clamp 2 is provided with an upper through hole, a vertical screw 11 passes through the upper groove 10 and the upper through hole, and the vertical screw 11 is connected to several nuts.

[0020] The positioning bracket 7 includes a vertical support plate 12, which includes a vertical through groove 13. An axial positioning seat 8 is connected to the tire simulation clamp 2 below. The axial positioning seat 8 is provided with a lower groove, the lower end of which is not closed. An axial screw 14 passes through the vertical through groove 13 and the lower groove. Several nuts are also connected to the axial screw 14.

[0021] Additionally, a positioning plate is fixedly connected to the lower part of the vertical screw 11.

[0022] The method of using this utility model is as follows: Connect the wheel hub 6 to the tire simulation clamp 2. When applying vertical loading: Insert the vertical screw 11 into the upper through hole until the positioning plate can no longer pass through the upper through hole. Screw a nut into the lower end of the vertical screw 11 to fix the vertical screw 11 on the upper side of the tire simulation clamp 2. Screw the second and third nuts into the upper end of the vertical screw 11 and control the feed distance of the third nut on the vertical screw 11. Since one end of the upper groove 10 is not closed, place the vertical screw 11 into the upper groove 10. The second nut is below the upper support plate 9 and the third nut is above the upper support plate 9. Therefore, the tire simulation clamp 2 is suspended and can slide along the upper groove 10 to adjust its position. Then, hold the hydraulic cylinder 3 with one hand and insert the bolt with the other hand to connect the hydraulic cylinder 3 to the wheel hub 6. After the connection is completed, screw the second nut upward until it is tightened.

[0023] When applying axial loading: First, connect the tire simulation fixture 2 and the axial positioning seat 8 with bolts. Insert the axial screw 14 into the vertical through groove 13 and screw in two nuts. After adjusting the height of the axial screw 14, tighten the nuts. Screw in two more nuts at the end away from the vertical support plate 12. Then, place the tire simulation fixture 2, ensuring that the axial screw 14 enters the lower groove so that the axial positioning seat 8 is between the two nuts. Then, hold the hydraulic cylinder 3 with one hand and insert the bolt with the other hand to connect the hydraulic cylinder 3 to the wheel hub 6. Finally, tighten the two nuts to fix the axial positioning seat 8.

[0024] Furthermore, several pads 15 are provided on the vertical screw 11 and the longitudinal screw, and the pads 15 are located between the nut and the upper support plate 9, the vertical support plate 12, and the axial positioning seat 8.

[0025] Furthermore, the upper end of the vertical support plate 12 is connected to the upper support plate 9, and the lower end of the vertical support plate 12 is connected to the horizontal lower support plate 16.

[0026] Furthermore, an upper rib is connected between the upper support plate 9 and the vertical support plate 12, and a lower rib 17 is connected between the lower support plate 16 and the vertical support plate 12, to enhance the stability of the positioning bracket 7.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A wheel hub bending fatigue life testing machine, comprising a column, a tire simulation fixture, a hydraulic cylinder, a hinged seat, and a control arm, characterized in that, It also includes positioning brackets and axial positioning seats; The positioning bracket includes an upper support plate with an upper groove. One end of the upper groove is not closed. The tire simulation fixture is located below the upper support plate and has an upper through hole. A vertical screw passes through the upper groove and the upper through hole, and the vertical screw is connected to several nuts. The positioning bracket includes a vertical support plate, the vertical support plate includes a vertical through groove, the axial positioning seat is connected to the bottom of the tire simulation fixture, the axial positioning seat is provided with a lower groove, the lower end of the lower groove is not closed, the vertical through groove and the lower groove are connected by an axial screw, and several nuts are also connected to the axial screw.

2. The automobile wheel hub bending fatigue life testing machine according to claim 1, characterized in that, Several pads are also provided on the vertical screw and the longitudinal screw.

3. The automotive wheel hub bending fatigue life testing machine according to claim 2, characterized in that, The upper end of the vertical support plate is connected to an upper support plate, and the lower end of the vertical support plate is connected to a lower support plate.

4. The automotive wheel hub bending fatigue life testing machine according to claim 3, characterized in that, An upper rib plate connects the upper support plate and the vertical support plate, and a lower rib plate connects the lower support plate and the vertical support plate.

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