A kind of head bowl group steering wear test device

Abstract

The utility model relates to wear -resisting test technical field especially relates to a kind of wear -resisting test device of steering of car head bowl group. It is mainly aimed at the wear -resisting test of bowl group interior by the separate polishing structure to bowl group inner wall, leading to the problem of lower test efficiency, and the following technical scheme is proposed, including detection table, the rotating disc is rotatably connected in the detection table interior, the polishing paper is glued in the rotating disc top, the rotating rod is fixedly connected in the rotating disc top, and the rotating rod is arranged in the offset position of rotating disc center. The eccentric structure of the utility model using rotating rod and polishing sleeve can simulate the impact and friction to bowl group inner wall, increase the effect of wear -resisting test to bowl group interior, and spring pushes the push sleeve and friction block to contact with bowl group in one side of lower pressing plate, so that friction block will limit bowl group, ensure that bowl group does not rotate when testing, improve the stability of bowl group end wear -resisting detection, increase the friction and impact effect of bowl group inner wall.

Description

Technical Field

[0001] This utility model relates to the field of wear resistance testing technology, and in particular to a wear resistance testing device for a steering headset. Background Technology

[0002] Abrasion resistance testing is a test to evaluate a material’s ability to resist mechanical wear. It measures a material’s durability by simulating the wear and tear caused by friction, scratching and other mechanical forces in actual use. During the test, the cup assembly needs to be subjected to multiple friction rotations.

[0003] During the friction test, the cup assembly is placed on the grinding disc and fixed by the pressing structure. The cup assembly is rotated and rubbed by the rotation of the grinding disc, thereby detecting and recording the wear resistance and rotation limit of the cup assembly.

[0004] However, during testing, the grinding disc can only grind the upper or lower cup, while the inner wall of the cup assembly requires a separate grinding structure for wear resistance testing, resulting in low testing efficiency. Therefore, this invention proposes a steering wear resistance testing device for a vehicle headliner cup assembly. Utility Model Content

[0005] The purpose of this invention is to address the problem in the prior art where, during testing, the grinding disc can only grind the upper or lower bowl, while the inner wall requires a separate grinding structure to perform wear resistance testing on the inside of the bowl assembly, resulting in low testing efficiency. This invention proposes a steering wear resistance testing device for the headstock bowl assembly.

[0006] The technical solution of this utility model: a steering wear resistance testing device for a car head headset, including a test platform, a turntable rotatably connected inside the test platform, a polishing paper glued to the top of the turntable, a rotating rod fixedly connected to the top of the turntable, the rotating rod being set at an off-center position of the turntable, and a polishing sleeve being sleeved on the outside of the rotating rod away from the turntable, the polishing sleeve being used for polishing the inside of the headset;

[0007] An embedding groove is provided on the outside of the rotating rod away from the turntable. There are multiple sets of embedding grooves arranged in a circular array. An embedding block is embedded inside the embedding groove and is fixedly connected inside the embedding groove.

[0008] A lower pressure plate is provided above the sanding paper, a push sleeve is provided below the lower pressure plate, and a bonding component is provided on the side of the push sleeve away from the lower pressure plate.

[0009] Optionally, the bonding component includes friction blocks, which are fixedly connected to the side of the push sleeve away from the lower pressure plate, and there are multiple sets of friction blocks arranged in a circumferential array on one side of the push sleeve.

[0010] Optionally, a spring is fixedly connected to the side of the push sleeve away from the friction block, and the end of the spring away from the push sleeve is fixedly connected to the bottom of the lower pressure plate.

[0011] Optionally, a limiting rod is slidably connected inside the lower pressure plate, the limiting rod is fixedly connected to the top of the detection table, and a pushing component is provided inside the lower pressure plate away from the limiting rod.

[0012] Optionally, the pushing assembly includes a threaded rod, which is fixedly connected to the top of the testing platform and slidably connected inside the lower pressure plate at a position away from the limiting rod.

[0013] Optionally, a nut is rotatably connected to the outside of the threaded rod, the nut abutting against the bottom of the lower pressure plate, and the nut is used to press down the lower pressure plate.

[0014] Optionally, a sleeve is fixedly connected to the bottom of the lower pressure plate, and the push sleeve is slidably connected to the outside of the sleeve, so that the sleeve can restrict the movement of the push sleeve.

[0015] Optionally, the top of the rotating rod is pitted, and the outside of the polishing sleeve is pitted. The pitted structure of the rotating rod and the polishing sleeve can polish the bowl assembly.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] This invention employs an eccentric structure of a rotating rod and a grinding sleeve to simulate the impact and friction on the inner wall of the bowl assembly, thereby enhancing the effectiveness of the wear resistance test on the inside of the bowl assembly. Meanwhile, a spring on one side of the lower pressure plate pushes the pushing sleeve and friction block into contact with the bowl assembly, thus restricting the bowl assembly and ensuring that it does not rotate during testing. This improves the stability of the wear resistance test at the end of the bowl assembly and enhances the friction and impact effect on the inner wall of the bowl assembly. Attached Figure Description

[0018] Figure 1 A schematic diagram of a steering headset wear resistance testing device is provided.

[0019] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the exploded structure of the rotating rod.

[0022] Figure label:

[0023] 1. Testing table; 2. Turntable; 3. Grinding paper; 4. Rotating rod; 5. Grinding sleeve; 6. Embedded groove; 7. Embedded block; 8. Lower pressure plate; 9. Limiting rod; 10. Threaded rod; 11. Nut; 12. Sleeve; 13. Push sleeve; 14. Friction block; 15. Spring. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0026] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example

[0030] like Figure 1 , Figure 2 and Figure 4As shown, this utility model proposes a steering headset wear resistance testing device, including a testing platform 1. A turntable 2 is rotatably connected inside the testing platform 1. Abrasive paper 3 is glued to the top of the turntable 2. The turntable 2 can drive the abrasive paper 3 to polish the headset inside the testing platform 1. A rotating rod 4 is fixedly connected to the top of the turntable 2. The rotating rod 4 is set at an off-center position from the center of the turntable 2. The eccentric structure of the turntable 2 can polish inside the headset. A polishing sleeve 5 is sleeved on the outside of the rotating rod 4 away from the turntable 2. The polishing sleeve 5 is supported by the rotating rod 4 and makes a circular motion with the rotation of the turntable 2. The polishing sleeve 5 is used inside the headset. Grinding; An embedding groove 6 is provided on the outside of the rotating rod 4 away from the turntable 2. There are multiple sets of embedding grooves 6 arranged in a circumferential array. An embedding block 7 is embedded inside the embedding groove 6. The structure of the embedding groove 6 makes it easy to slide the embedding block 7 into it. The embedding block 7 is fixedly connected inside the embedding groove 6. The embedding block 7 can fix the grinding sleeve 5 to the outside of the rotating rod 4; A lower pressure plate 8 is provided above the grinding paper 3. A push sleeve 13 is provided below the lower pressure plate 8. The lower pressure plate 8 can drive the push sleeve 13 to press down on the bowl assembly, so that the end of the bowl assembly is in contact with the grinding paper 3. A contact component is provided on the side of the push sleeve 13 away from the lower pressure plate 8.

[0031] For further details, please refer to Figure 1 , Figure 2 and Figure 4 The top of the rotating rod 4 is pitted, which facilitates extreme wear testing of the inner wall of the bowl assembly. The outside of the grinding sleeve 5 is pitted, which can simulate the changes in the end of the bowl assembly when subjected to friction and vibration. The pitted structures of the rotating rod 4 and the grinding sleeve 5 can grind the bowl assembly. The lower pressure plate 8 is slidably connected to a limit rod 9, which can limit the downward stroke of the lower pressure plate 8. The limit rod 9 is fixedly connected to the top of the testing table 1. A pushing component is provided inside the lower pressure plate 8 away from the limit rod 9. The pushing component includes a threaded rod 10, which allows the lower pressure plate 8 to move outside of it. The threaded rod 10 is fixedly connected to the top of the testing table 1, which facilitates the control of the downward pressure of the lower pressure plate 8. The threaded rod 10 is slidably connected inside the lower pressure plate 8 away from the limit rod 9.

[0032] For further details, please refer to Figure 2 and Figure 3The fitting assembly includes a friction block 14, which is fixedly connected to the side of the push sleeve 13 away from the lower pressure plate 8. The push sleeve 13 allows the friction block 14 to fit tightly against the cup assembly. There are multiple sets of friction blocks 14 arranged in a circumferential array on one side of the push sleeve 13. A spring 15 is fixedly connected to the side of the push sleeve 13 away from the friction block 14. The spring 15 can push the friction block 14 to fit tightly against the end of the cup assembly. The end of the spring 15 away from the push sleeve 13 is fixedly connected to the bottom of the lower pressure plate 8. A nut 11 is rotatably connected to the outside of the threaded rod 10. The nut 11 can press against the lower pressure plate 8. The nut 11 abuts against the bottom of the lower pressure plate 8 and is used to press down the lower pressure plate 8. A sleeve 12 is fixedly connected to the bottom of the lower pressure plate 8. The sleeve 12 can be fitted inside the cup assembly. The push sleeve 13 is slidably connected to the outside of the sleeve 12. The sleeve 12 can also assist the push sleeve 13 in sliding and can restrict the movement of the push sleeve 13.

[0033] In this embodiment, when grinding the bowl assembly, the rotating nut 11 is disengaged from the outside of the threaded rod 10. At this time, the lower pressure plate 8 can be removed from the outside of the limiting rod 9 and the threaded rod 10. After the lower pressure plate 8 is removed, the bowl assembly can be placed on top of the grinding paper 3, and the bowl assembly will be fitted over the outside of the grinding sleeve 5. Then, the lower pressure plate 8 is fitted over the outside of the limiting rod 9 and the threaded rod 10. Then, the sleeve 12 is aligned with the other end of the bowl assembly. At this time, the nut 11 can be rotated and installed over the outside of the threaded rod 10, so that the lower pressure plate 8 can squeeze the bowl assembly.

[0034] When the lower pressure plate 8 presses down on the bowl assembly, the spring 15 will push the push sleeve 13 to approach the end of the bowl assembly on one side of the lower pressure plate 8. The push sleeve 13 contacts the end of the bowl assembly by relying on the friction block 14. In this way, the friction block 14 can position the bowl assembly, and the friction block 14 ensures that the bowl assembly will not shake when the sanding paper 3 rotates.

[0035] After installation, the testing platform 1 can be started, which will drive the turntable 2 to rotate. The turntable 2 will then drive the polishing paper 3 to polish the end of the bowl assembly. At the same time, the rotating rod 4 will drive the polishing sleeve 5 to impact the inside of the bowl assembly, thus allowing the polishing sleeve 5 to polish the inside of the bowl assembly.

[0036] After sanding is complete, the bowl assembly can be removed in the same way as when it was assembled. Then, the used sanding paper 3 and sanding sleeve 5 can be replaced. When replacing the sanding sleeve 5, the insert block 7 slides out from the insert groove 6, so that the sanding sleeve 5 can be removed from one end of the rotating rod 4. Then, the sanding paper 3 can be peeled off from the turntable 2.

[0037] After the sanding paper 3 and sanding sleeve 5 are removed, the new sanding paper 3 is attached to the top of the turntable 2. Then, the new sanding sleeve 5 can be slid along the insert groove 6 by the insert block 7, so that the sanding sleeve 5 can be installed on the top of the rotating rod 4. In this way, the above detection method can be repeated to sand the unsanded end of the bowl assembly, so as to perform bowl assembly detection.

[0038] It should be noted that the eccentric structure of the rotating rod 4 and the grinding sleeve 5 in this device can simulate the impact and friction on the inner wall of the bowl assembly, which increases the effect of the wear resistance test inside the bowl assembly. The spring 15 pushes the pushing sleeve 13 and the friction block 14 to contact the bowl assembly on the side of the lower pressure plate 8. In this way, the friction block 14 will restrict the bowl assembly and ensure that the bowl assembly will not rotate during the test. This improves the stability of the wear resistance test at the end of the bowl assembly and increases the friction and impact effect on the inner wall of the bowl assembly.

[0039] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A device for testing the wear resistance of a steering headset, comprising a testing platform (1), wherein a turntable (2) is rotatably connected inside the testing platform (1), and abrasion paper (3) is glued to the top of the turntable (2), characterized in that: A rotating rod (4) is fixedly connected to the top of the turntable (2). The rotating rod (4) is set at an off-center position of the center of the turntable (2). A polishing sleeve (5) is sleeved on the outside of the rotating rod (4) away from the turntable (2). The polishing sleeve (5) is used for polishing the inside of the bowl assembly. An embedding groove (6) is provided on the outside of the rotating rod (4) away from the turntable (2). There are multiple sets of embedding grooves (6) arranged in a circular array. An embedding block (7) is embedded inside the embedding groove (6). The embedding block (7) is fixedly connected inside the embedding groove (6). A lower pressure plate (8) is provided above the polishing paper (3), and a push sleeve (13) is provided below the lower pressure plate (8). A bonding component is provided on the side of the push sleeve (13) away from the lower pressure plate (8).

2. The steering headset wear resistance testing device according to claim 1, characterized in that, The bonding component includes friction blocks (14), which are fixedly connected to the side of the push sleeve (13) away from the lower pressure plate (8). There are multiple sets of friction blocks (14) arranged in a circumferential array on one side of the push sleeve (13).

3. The steering headset wear resistance testing device according to claim 2, characterized in that, A spring (15) is fixedly connected to the side of the push sleeve (13) away from the friction block (14), and the end of the spring (15) away from the push sleeve (13) is fixedly connected to the bottom of the lower pressure plate (8).

4. The steering headset wear resistance testing device according to claim 3, characterized in that, The lower pressure plate (8) is slidably connected to a limiting rod (9), which is fixedly connected to the top of the testing table (1). A pushing component is provided inside the lower pressure plate (8) at a position away from the limiting rod (9).

5. The steering headset wear resistance testing device according to claim 4, characterized in that, The pushing assembly includes a threaded rod (10), which is fixedly connected to the top of the testing table (1) and slidably connected inside the lower pressure plate (8) away from the limiting rod (9).

6. The steering headset wear resistance testing device according to claim 5, characterized in that, The threaded rod (10) is externally rotatably connected to a nut (11), which abuts against the bottom of the lower pressure plate (8) and is used to press down the lower pressure plate (8).

7. The steering headset wear resistance testing device according to claim 1, characterized in that, The bottom of the lower pressure plate (8) is fixedly connected to a sleeve (12), and the push sleeve (13) is slidably connected to the outside of the sleeve (12). The sleeve (12) can restrict the movement of the push sleeve (13).

8. The steering headset wear resistance testing device according to claim 1, characterized in that, The top of the rotating rod (4) is pitted, and the outside of the polishing sleeve (5) is pitted. The pitted structure of the rotating rod (4) and the polishing sleeve (5) can polish the bowl assembly.

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