A device for fatigue resistance testing of aluminum alloy wheel hubs

Abstract

The utility model discloses a kind of for aluminium alloy wheel hub fatigue resistance testing device, it is related to aluminium alloy wheel hub technical field, including base, the upper surface of the base is fixedly connected with wheel hub seat, the upper surface of the wheel hub seat is placed with wheel hub body, the upper of the wheel hub body is provided with pressing block, the upper of the pressing block is provided with adjusting mechanism, the pressing block moves by adjusting mechanism, the upper surface of the base is fixedly connected with fixed block, the inside of the fixed block is equipped with cavity, the inside of the cavity is rotatably connected with rotating rod. The utility model is by adjusting mechanism to exert vertical pressure, simulate wheel hub load weight;Driving mechanism drives wheel hub reciprocating swing, simulate the torque load when steering, jolt, double load is combined with actual driving condition of car, compared with traditional single detection, the device detection data comprehensiveness improves, can accurately reflect the real fatigue resistance of aluminium alloy wheel hub, avoid the security risk caused by one-sided detection.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy wheel hub technology, and specifically to a fatigue resistance testing device for aluminum alloy wheel hubs. Background Technology

[0002] A wheel hub is a cylindrical metal component inside a car tire that supports the tire around its axle. Simply put, it's the part of the wheel where the axle is mounted. It's an important component connecting the brake drum, wheel disc, and half-shaft. Wheel hubs on the market can be divided into steel wheel hubs and alloy wheel hubs based on their materials.

[0003] Among them, an aluminum alloy wheel hub with announcement number CN222793110U includes an outer ring, a fixing plate fixedly connected inside the outer ring, a hollow hole on the surface of the fixing plate, a baffle on the inner side of the fixing plate, a rotating ring fixedly connected to the outer side of the baffle, teeth fixedly connected to the surface of the rotating ring, a bracket fixedly connected to the inner side of the fixing plate, a worm gear rotatably connected to the upper part of the bracket, a first gear rotatably connected to the lower part of the bracket, and a second gear fixedly connected to the side of the first gear.

[0004] However, aluminum alloy wheels usually need to be tested for fatigue resistance before use. Existing wheel testing devices mostly use a single vertical load to test the wheels, which cannot reflect the actual use of the wheels and thus results in a one-sided testing structure. Utility Model Content

[0005] In view of the problems existing in the current aluminum alloy wheel hubs, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a fatigue resistance testing device for aluminum alloy wheel hubs, which solves the problem that aluminum alloy wheel hubs usually need to be tested for fatigue resistance before use. However, existing wheel hub testing devices mostly use a single vertical load to test the wheel hubs, which cannot reproduce the actual use of the car wheel hubs, resulting in a one-sided testing effect.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A fatigue resistance testing device for aluminum alloy wheel hubs includes a base, a wheel hub seat fixedly connected to the upper surface of the base, a wheel hub body placed on the upper surface of the wheel hub seat, a pressure block disposed above the wheel hub body, an adjustment mechanism disposed above the pressure block, the pressure block being moved by the adjustment mechanism, a fixing block fixedly connected to the upper surface of the base, a cavity formed inside the fixing block, a rotating rod rotatably connected inside the cavity, a fixing plate fixedly sleeved on the wall of the rotating rod, one end of the fixing plate penetrating one side of the cavity and fixedly connected to the side wall of the wheel hub body, a driving mechanism disposed inside the cavity, and the fixing plate being moved by the driving mechanism.

[0009] Preferably, the adjustment mechanism includes an L-shaped plate, a lead screw, a sleeve, and a first motor. The L-shaped plate is fixedly connected to the upper surface of the base, the lead screw is rotatably connected to the lower surface above the L-shaped plate, the sleeve is threaded onto the wall of the lead screw, the first motor is fixedly connected to the upper surface of the L-shaped plate, and one end of the lead screw passes through one side of the L-shaped plate and is fixedly connected to the output end of the first motor.

[0010] Preferably, the driving mechanism includes a second motor, a circular plate, a connecting rod, a slider, a U-shaped rod, and an eccentric rod. The second motor is fixedly connected to one side of the fixed block, and the output end of the second motor passes through one side of the fixed block and extends into the cavity. The circular plate is fixedly sleeved on the output end of the second motor. The eccentric rod is fixedly connected to one side of the circular plate. The connecting rod is rotatably sleeved on the outer surface of the eccentric rod. Each U-shaped rod is fixedly connected to the lower surface of one end of the fixed plate. The slider is slidably sleeved on the wall of the U-shaped rod, and the connecting rod is hinged to the lower surface of the slider.

[0011] Preferably, a plurality of bolts are provided on one side of the fixing plate, and the fixing plate is fixedly connected to one side of the wheel hub body by each bolt.

[0012] Preferably, two telescopic rods are symmetrically and fixedly connected between the pressure block and the L-shaped plate.

[0013] Preferably, a strip-shaped hole is provided on one side of the cavity, and the strip-shaped hole matches the fixing plate.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model applies vertical pressure through an adjustment mechanism to simulate the weight borne by the wheel hub; the drive mechanism drives the wheel hub to swing back and forth to simulate the torque load during steering and bumps. The dual load closely matches the actual driving conditions of a car. Compared with traditional single testing, the detection data of this device is more comprehensive and can accurately reflect the true fatigue resistance of the aluminum alloy wheel hub, avoiding safety hazards caused by one-sided testing.

[0016] 2. In this utility model, the first motor drives the pressure block to apply pressure smoothly through the lead screw transmission, resulting in uniform pressure output and no impact load; the second motor achieves reciprocating oscillation through the eccentric wheel and linkage mechanism to ensure stable torque loading. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 For the present utility model Figure 1 A sectional view;

[0020] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of part A.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base, 2. Hub seat, 3. Hub body, 4. Pressure block, 5. Fixing block, 6. Rotating rod, 7. Fixing plate, 8. L-shaped plate, 9. Lead screw, 10. Sleeve, 11. First motor, 12. Second motor, 13. Circular plate, 14. Connecting rod, 15. Slider, 16. U-shaped rod, 17. Eccentric rod, 18. Bolt, 19. Telescopic rod. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model discloses a fatigue resistance testing device for aluminum alloy wheel hubs.

[0025] This utility model provides, for example Figure 1-3 The device shown includes a base 1, a hub seat 2 fixedly connected to the upper surface of the base 1, a hub body 3 placed on the upper surface of the hub seat 2, a pressure block 4 above the hub body 3, an adjustment mechanism above the pressure block 4, the pressure block 4 moving through the adjustment mechanism, a fixing block 5 fixedly connected to the upper surface of the base 1, a cavity inside the fixing block 5, a rotating rod 6 rotatably connected inside the cavity, a fixing plate 7 fixedly sleeved on the rod wall of the rotating rod 6, one end of the fixing plate 7 penetrating one side of the cavity and fixedly connected to the side wall of the hub body 3, a driving mechanism inside the cavity, and the fixing plate 7 moving through the driving mechanism.

[0026] like Figure 1-2 As shown, the adjustment mechanism includes an L-shaped plate 8, a lead screw 9, a sleeve 10, and a first motor 11. The L-shaped plate 8 is fixedly connected to the upper surface of the base 1. The lead screw 9 is rotatably connected to the lower surface above the L-shaped plate 8. The sleeve 10 is threaded onto the wall of the lead screw 9. The first motor 11 is fixedly connected to the upper surface of the L-shaped plate 8. One end of the lead screw 9 passes through one side of the L-shaped plate 8 and is fixedly connected to the output end of the first motor 11. Two telescopic rods 19 are symmetrically fixedly connected between the pressure block 4 and the L-shaped plate 8.

[0027] The first motor 11 on the L-shaped plate 8 is started, and the output end drives the lead screw 9 to rotate. The sleeve 10 descends vertically along the lead screw through the threaded engagement, pushing the pressure block 4 closer to the hub body 3 to apply vertical pressure to the hub. At the same time, the first motor 11 is a stepper motor, which is self-locking after being powered on. It can be clamped by the pressure block 4 during the reciprocating swing detection of the hub to prevent the hub from falling off during the detection process. The telescopic rod 19 between the pressure block 4 and the L-shaped plate 8 restricts the pressure block to move only vertically to avoid deviation that would cause uneven pressure distribution.

[0028] like Figure 1-3 As shown, the drive mechanism includes a second motor 12, a circular plate 13, a connecting rod 14, a slider 15, a U-shaped rod 16, and an eccentric rod 17. The second motor 12 is fixedly connected to one side of the fixed block 5. The output end of the second motor 12 passes through one side of the fixed block 5 and extends into the cavity. The circular plate 13 is fixedly sleeved on the output end of the second motor 12. The eccentric rod 17 is fixedly connected to one side of the circular plate 13. The connecting rod 14 is rotatably sleeved on the outer surface of the eccentric rod 17. Each U-shaped rod 16 is fixedly connected to the lower surface of one end of the fixed plate 7. The slider 15 is slidably sleeved on the wall of the U-shaped rod 16. The connecting rod 14 is hinged to the lower surface of the slider 15. A strip hole is opened on one side of the cavity, and the strip hole matches the fixed plate 7. Multiple bolts 18 are provided on one side of the fixed plate 7. The fixed plate 7 is fixedly connected to one side of the hub body 3 by each bolt 18.

[0029] The second motor 12 on one side of the fixed block 5 is started, and the output end drives the circular plate 13 and the eccentric rod 17 to rotate. The eccentric rod drives the slider 15 to slide back and forth along the U-shaped rod 16 through the connecting rod 14, which in turn pushes the fixed plate 7 to swing back and forth around the rotating rod 6 in the strip hole. The fixed plate is fixed to the wheel hub body 3 by bolts 18, which drives the wheel hub to swing back and forth synchronously, simulating the reciprocating torque borne by the wheel hub when the car turns or bumps.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fatigue testing device for aluminum alloy wheel hubs, comprising a base (1), characterized in that, A hub seat (2) is fixedly connected to the upper surface of the base (1). A hub body (3) is placed on the upper surface of the hub seat (2). A pressure block (4) is provided above the hub body (3). An adjustment mechanism is provided above the pressure block (4). The pressure block (4) moves through the adjustment mechanism. A fixing block (5) is fixedly connected to the upper surface of the base (1). A cavity is opened inside the fixing block (5). A rotating rod (6) is rotatably connected inside the cavity. A fixing plate (7) is fixedly sleeved on the rod wall of the rotating rod (6). One end of the fixing plate (7) passes through one side of the cavity and is fixedly connected to the side wall of the hub body (3). A driving mechanism is provided inside the cavity. The fixing plate (7) moves through the driving mechanism.

2. The fatigue resistance testing device for aluminum alloy wheel hubs according to claim 1, characterized in that, The adjustment mechanism includes an L-shaped plate (8), a lead screw (9), a sleeve (10), and a first motor (11). The L-shaped plate (8) is fixedly connected to the upper surface of the base (1). The lead screw (9) is rotatably connected to the lower surface above the L-shaped plate (8). The sleeve (10) is threaded onto the wall of the lead screw (9). The first motor (11) is fixedly connected to the upper surface of the L-shaped plate (8). One end of the lead screw (9) passes through one side of the L-shaped plate (8) and is fixedly connected to the output end of the first motor (11).

3. The fatigue resistance testing device for aluminum alloy wheel hubs according to claim 1, characterized in that, The driving mechanism includes a second motor (12), a circular plate (13), a connecting rod (14), a slider (15), a U-shaped rod (16), and an eccentric rod (17). The second motor (12) is fixedly connected to one side of the fixed block (5). The output end of the second motor (12) passes through one side of the fixed block (5) and extends into the cavity. The circular plate (13) is fixedly sleeved on the output end of the second motor (12). The eccentric rod (17) is fixedly connected to one side of the circular plate (13). The connecting rod (14) is rotatably sleeved on the outer surface of the eccentric rod (17). Each U-shaped rod (16) is fixedly connected to the lower surface of one end of the fixed plate (7). The slider (15) is slidably sleeved on the wall of the U-shaped rod (16). The connecting rod (14) is hinged to the lower surface of the slider (15).

4. The fatigue resistance testing device for aluminum alloy wheel hubs according to claim 1, characterized in that, The fixing plate (7) has multiple bolts (18) on one side, and the fixing plate (7) is fixedly connected to one side of the hub body (3) by each bolt (18).

5. The fatigue resistance testing device for aluminum alloy wheel hubs according to claim 1, characterized in that, Two telescopic rods (19) are symmetrically fixedly connected between the pressure block (4) and the L-shaped plate (8).

6. The fatigue resistance testing device for aluminum alloy wheel hubs according to claim 1, characterized in that, A strip-shaped hole is provided on one side of the cavity, and the strip-shaped hole matches the fixing plate (7).

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