Automobile hub bearing impact test device

Abstract

The utility model relates to the technical field of test devices, and discloses an automobile hub bearing impact test device, which comprises a test bench internally provided with a lifting mechanism, and the test bench is connected with a sliding plate through the lifting mechanism; the impact weight is connected with the bottom of the sliding plate through an electromagnet at the top; during use, the height of the movable plate can be adjusted only by starting a motor in the lifting mechanism, the impact weight is attracted to the bottom of the movable plate through the electromagnet to move up and down, the height of the impact weight is adjusted conveniently and quickly, and meanwhile when impact weights of different weights need to be replaced, only the two sides of the test bed need to be erected, and the test bed is convenient to use. The two unlocking plates are pulled, the installation sliding block slides out of the groove in the installation base, limiting on the installation block can be relieved, the installation block and the limiting rod on the top are pulled out of the bottom of the test bed, then the electromagnet power source is turned off, the impact weight can be taken down, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to an impact testing device for automobile wheel hub bearings. Background Technology

[0002] The main function of wheel hub bearings is to bear weight and provide precise guidance for the rotation of the wheel hub. They bear both axial and radial loads and are very important components. Impact tests are required on wheel hub bearings to ensure that the bearings perform normally.

[0003] Most existing impact testing devices use impact weights in conjunction with pressure sensors for testing. However, these devices are too simple in function, cannot adjust the test height, and cannot guarantee the accuracy of the weights during the drop process. Furthermore, the weights need to be manually reattached after the test, which is cumbersome. In related technologies, a motor is started, which drives a screw to rotate. This, along with a first sliding rod, moves a movable frame up and down. An electromagnet on the movable frame is energized, attracting the mounting block, thus adjusting the height of the impact hammer and improving the device's flexibility. However, because the second sliding rod is fixedly connected to the main body of the device, and its height is higher than the side support columns, the impact weights are confined between the movable frame and the main body. The bottom of the device needs to be disassembled to replace the weights, causing inconvenience. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an impact testing device for automotive wheel hub bearings, which has the advantages of easy adjustment of the test height and convenient replacement of weights, thus solving the problems of difficulty in adjusting the test height and inconvenience in replacing weights in existing automotive wheel hub bearing impact testing devices.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an impact testing device for automotive wheel hub bearings, comprising: a test bench with a lifting mechanism inside, and a sliding plate connected to the test bench via the lifting mechanism; an impact weight connected to the bottom of the sliding plate via an electromagnet at the top; a replacement assembly inside the test bench; the replacement assembly comprising: a mounting base slidably connected to the interior of the test bench; a mounting block installed inside the mounting base, with a limit rod fixedly connected to the top of the mounting block; a limit seat slidably connected to one side of the lifting mechanism; a mounting slider slidably connected to the interior of the mounting block; side sliders fixedly connected to both sides of the mounting slider; a first guide rod fixedly connected to the interior of the mounting block, the first guide rod slidably connected to the side sliders, and a spring sleeved on the outside of the first guide rod; and an unlocking plate fixedly connected to the bottom of the mounting slider, the bottom of the unlocking plate extending below the mounting block and slidably connected to the mounting block.

[0008] In some embodiments, the test bench is internally provided with an adjustment assembly; the adjustment assembly includes: a drive motor, fixedly connected to the interior of the test bench and electrically connected to an external power source; a lead screw, one end of which is fixedly connected to the output end of the drive motor, and the other end of which is rotatably connected to the interior of the test bench; an adjustment seat, threadedly connected to the outside of the lead screw, slidably connected to the interior of the test bench, and one side of the adjustment seat is fixedly connected to the mounting base; a slide groove, formed on one side of the mounting base; and a second guide rod, fixedly connected to the interior of the lifting mechanism, and slidably connected to the limiting seat.

[0009] In some embodiments, the number of mounting bases is two, and one mounting base is fixedly connected to each side of the adjustment base.

[0010] In some embodiments, a limiting block is fixedly connected inside the test bench, and the height of the limiting block is the same as the height of the slide.

[0011] In some embodiments, the mounting slider, the unlocking plate, the two side sliders and the two first guide rods form a group, and the mounting block has two groups inside, which are arranged symmetrically.

[0012] In some embodiments, one side of the mounting slider extends into the interior of the mounting block, the extended portion is provided with an inclined surface, and the interior of the mounting base has a groove of the same size and shape as the extended side of the mounting slider.

[0013] In some embodiments, the number of top limiting rods of the mounting block is two, and the exterior of each limiting rod is slidably connected to the interior of the limiting seat.

[0014] In some embodiments, an anti-slip pad is fixedly connected to the bottom of the test bench.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides an impact testing device for automotive wheel hub bearings, which has the following beneficial effects:

[0017] In use, this invention simply requires starting the motor within the lifting mechanism to adjust the height of the moving plate. The electromagnet then attracts the impact weight to the bottom of the moving plate, allowing it to move up and down to adjust the weight's height – a convenient and quick process. Furthermore, when changing impact weights of different weights, simply raise both sides of the test bench, pull the two unlocking plates, and slide the mounting slider out of the groove inside the mounting base. This releases the limit on the mounting block, allowing the mounting block and the top limit rod to be pulled out from the bottom of the test bench. Then, turning off the electromagnet power allows the impact weight to be removed – a quick and easy process. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the internal structure of the test bench of this utility model;

[0020] Figure 3 This is a schematic diagram of the replacement component of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the mounting slider of this utility model.

[0022] In the picture:

[0023] 11. Test bench; 12. Lifting mechanism; 13. Impact weight;

[0024] 2. Replace components; 21. Mounting base; 22. Mounting block; 23. Limiting seat; 24. Mounting slider; 25. Side slider; 26. Guide rod No. 1; 27. Unlocking plate;

[0025] 3. Adjustment assembly; 31. Drive motor; 32. Lead screw; 33. Adjustment seat; 34. Slide groove; 35. No. 2 guide rod. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0030] During use, the operator installs the bearing on the test bench, then de-energizes the electromagnet, and the impact weight falls downwards under the action of gravity, thereby impacting the bearing. The parameters of the bearing under impact are transmitted through the pressure sensor.

[0031] In related technologies, by starting the motor, the motor drives the screw to rotate, which, together with the first slide rod, can drive the moving frame to move up and down. The electromagnet on the moving frame is energized and attracts the mounting block, thereby adjusting the height of the impact hammer and improving the flexibility of the device. However, since the second slide rod is fixedly connected to the main body of the device and the height of the second slide rod is higher than the height of the two side support columns, the impact weight will be restricted between the moving frame and the main body of the device. The bottom of the device needs to be disassembled to replace the weight, which causes inconvenience in use.

[0032] To address some of the problems in related technologies, this application provides an automotive wheel hub bearing impact testing device. In use, simply activating the motor within the lifting mechanism 12 adjusts the height of the moving plate. Then, an electromagnet attracts the impact weight 13 to the bottom of the moving plate, allowing it to move up and down, thus adjusting the height of the impact weight 13. This is convenient and quick. Furthermore, when changing impact weights 13 to different weights, simply raise both sides of the test bench 11, pull the two unlocking plates 27, and slide the mounting slider 24 out of the groove inside the mounting base 21. This releases the restriction on the mounting block 22, allowing the mounting block 22 and the top limiting rod to be pulled out from the bottom of the test bench 11. Then, turning off the electromagnet power allows the impact weight 13 to be removed. This is also convenient and quick.

[0033] This application is described below with reference to the accompanying drawings and specific embodiments:

[0034] Combination Figures 1-4 This application provides an impact testing device for automotive wheel hub bearings, comprising: a test bench 11, which has a lifting mechanism 12 inside, and a sliding plate connected to the test bench 11 through the lifting mechanism 12; an impact weight 13 connected to the sliding plate through an electromagnet at the top; a replacement assembly 2 inside the test bench 11; the replacement assembly 2 includes: a mounting base 21 slidably connected to the inside of the test bench 11; a mounting block 22 installed inside the mounting base 21, and a limit rod fixedly connected to the top of the mounting block 22; a limit seat 23 slidably connected to one side of the lifting mechanism 12; a mounting slider 24 slidably connected to the inside of the mounting block 22; side sliders 25 fixedly connected to both sides of the mounting slider 24; a first guide rod 26 fixedly connected to the inside of the mounting block 22, the first guide rod 26 being slidably connected to the side sliders 25, and a spring sleeved on the outside of the first guide rod 26; and an unlocking plate 27 fixedly connected to the bottom of the mounting slider 24, and the bottom of the unlocking plate 27 extending to the bottom of the mounting block 22 and slidably connected to the mounting block 22.

[0035] In use, the hub bearing is installed on the test bench 11, and then the motor in the lifting mechanism 12 is started. The height of the moving plate is adjusted by rotating the lead screw connected to the motor. Since the bottom of the moving plate is made of iron, and an electromagnet is installed on the top of the impact weight 13, when the electromagnet is energized, the impact weight 13 can be attracted to the bottom of the moving plate. Therefore, the impact weight 13 can move with the moving plate, thereby adjusting the height of the impact weight 13, which is convenient and quick. After adjusting to the appropriate height, the electromagnet is de-energized, and the impact weight 13 slides down along the limit rod, thereby impacting the bearing. To easily replace the impact weight 13 with a different weight, first raise both sides of the test bench 11 so that the center of the bottom of the test bench 11 is exposed. Then pull the two unlocking plates 27 to slide the mounting slider 24 out of the groove inside the mounting base 21, releasing the restriction on the mounting block 22. Then pull the mounting block 22 and the top limit rod downward from the bottom of the mounting base 21 along the direction of the mounting base 21. The limit rod slides down along the inside of the limit seat 23, thereby releasing the restriction on the four corners of the impact weight 13. Then turn off the electromagnet power supply, and the impact weight 13 can be removed for easy operation.

[0036] In some embodiments, the test bench 11 is provided with an adjustment assembly 3; the adjustment assembly 3 includes: a drive motor 31, which is fixedly connected to the inside of the test bench 11 and electrically connected to an external power source; a lead screw 32, one end of which is fixedly connected to the output end of the drive motor 31 and the other end of which is rotatably connected to the inside of the test bench 11; an adjustment seat 33, which is threadedly connected to the outside of the lead screw 32 and is slidably connected to the inside of the test bench 11, and one side of the adjustment seat 33 is fixedly connected to the mounting seat 21; a slide groove 34, which is formed on one side of the mounting seat 21; and a second guide rod 35, which is fixedly connected to the inside of the lifting mechanism 12 and is slidably connected to the limiting seat 23.

[0037] When the impact position needs to be adjusted, the power supply to the top of the impact weight 13 is turned off, the drive motor 31 is started, and the lead screw 32 is rotated. Then, the position of the adjusting seat 33 is adjusted through the threaded connection. The movement of the adjusting seat 33 causes the mounting seat 21 and the mounting block 22 to slide. The mounting seat 21 slides along the limiting block inside the test bench 11 through the sliding groove 34. The limiting rod at the top of the mounting block 22 causes the impact weight 13 and the limiting seat 23 to slide. After that, the power supply outside the impact weight 13 is turned on again, and the impact position can be adjusted, which is convenient and quick.

[0038] In some embodiments, there are two mounting bases 21, and one mounting base 21 is fixedly connected to each side of the adjusting base 33 to enhance the stability of the adjusting base 33 in moving the mounting base 21.

[0039] In some embodiments, a limiting block is fixedly connected inside the test bench 11, and the height of the limiting block is the same as the height of the slide 34, so as to stabilize the movement of the mounting base 21.

[0040] In some embodiments, the mounting slider 24, the unlocking plate 27, the two side sliders 25 and the two guide rods 26 are a group, and the mounting block 22 has two groups inside, which are symmetrically arranged to enhance the stability of the installation.

[0041] In some embodiments, one side of the mounting slider 24 extends into the interior of the mounting block 22, the extended portion is provided with a slope, and the interior of the mounting base 21 is provided with a groove of the same size and shape as the extended side of the mounting slider 24, so that when the mounting block 22 is aligned with the interior of the mounting base 21 and inserted upwards, the mounting slider 24 can be pressed by both sides of the mounting base 21, thereby retracting the mounting slider 24 into the interior of the mounting block 22, which facilitates installation.

[0042] In some embodiments, the number of top limiting rods of the mounting block 22 is two, and the outside of the limiting rods is slidably connected to the inside of the limiting seat 23 to enhance the limiting effect on the impact weight 13.

[0043] In some embodiments, an anti-slip pad is fixedly connected to the bottom of the test bench 11 to reduce the probability of the test bench 11 moving when impacted by the impact weight 13.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0045] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An impact testing device for automotive wheel hub bearings, characterized in that, include: A test bench (11) is provided with a lifting mechanism (12) inside, and the test bench (11) is connected to a sliding plate through the lifting mechanism (12); an impact weight (13) is connected to the bottom of the sliding plate through an electromagnet at the top; a replacement assembly (2) is provided inside the test bench (11); the replacement assembly (2) includes: Mounting base (21) is slidably connected to the inside of the test bench (11); mounting block (22) is installed inside the mounting base (21), and a limit rod is fixedly connected to the top of the mounting block (22); limit seat (23) is slidably connected to one side of the lifting mechanism (12); mounting slider (24) is slidably connected to the inside of the mounting block (22); side slider (25) is fixedly connected to both sides of the mounting slider (24); first guide rod (26) is fixedly connected to the inside of the mounting block (22), the first guide rod (26) is slidably connected to the side slider (25), and a spring is sleeved on the outside of the first guide rod (26); unlocking plate (27) is fixedly connected to the bottom of the mounting slider (24), and the bottom of the unlocking plate (27) extends to the bottom of the mounting block (22) and is slidably connected to the mounting block (22).

2. The automotive wheel hub bearing impact testing device according to claim 1, characterized in that, The test bench (11) is equipped with an adjustment component (3); the adjustment component (3) includes: A drive motor (31) is fixedly connected inside the test bench (11) and electrically connected to an external power source; a lead screw (32) is fixedly connected at one end to the output end of the drive motor (31) and rotatably connected at the other end to the inside of the test bench (11); an adjusting seat (33) is threadedly connected to the outside of the lead screw (32), and slidably connected to the inside of the test bench (11), and one side of the adjusting seat (33) is fixedly connected to the mounting seat (21); a slide groove (34) is formed on one side of the mounting seat (21); a second guide rod (35) is fixedly connected inside the lifting mechanism (12) and slidably connected to the limiting seat (23).

3. The impact testing device for automobile wheel hub bearings according to claim 2, characterized in that: The number of mounting bases (21) is two, and one mounting base (21) is fixedly connected to each side of the adjusting base (33).

4. The impact testing device for automobile wheel hub bearings according to claim 2, characterized in that: The test bench (11) is internally fixedly connected to a limiting block, the height of which is the same as the height of the slide (34).

5. The automotive wheel hub bearing impact testing device according to claim 1, characterized in that: The mounting slider (24), the unlocking plate (27), the two side sliders (25) and the two first guide rods (26) form a group. The mounting block (22) has two groups inside, and they are arranged symmetrically.

6. The impact testing device for automobile wheel hub bearings according to claim 1, characterized in that: One side of the mounting slider (24) extends into the interior of the mounting block (22), the extended part is provided with a slope, and the interior of the mounting base (21) is provided with a groove of the same size and shape as the extended side of the mounting slider (24).

7. The impact testing device for automobile wheel hub bearings according to claim 1, characterized in that: The mounting block (22) has two top limiting rods, and the outside of each limiting rod is slidably connected to the inside of the limiting seat (23).

8. The impact testing device for automotive wheel hub bearings according to claim 1, characterized in that: The bottom of the test bench (11) is fixedly connected with an anti-slip pad.

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