Hub oil seal gradient detection tool
By designing a wheel hub oil seal tilt detection fixture, and utilizing a motor-driven gear rotation and a pressure sensor to record the displacement, the problem of low detection efficiency in existing wheel hub oil seal technologies has been solved, achieving automated and efficient tilt detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HUALEI SEAL IND CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-26
Smart Images

Figure CN224285918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil seal testing technology, and in particular to a tooling for testing the tilt of wheel hub oil seals. Background Technology
[0002] Wheel hub oil seals are an important component on automobile wheels. Their main function is to prevent oil leakage and external impurities from entering the wheel hub. Therefore, the tilt of the wheel hub oil seal needs to be checked before assembly to prevent problems such as oil leakage caused by tilting of the wheel hub oil seal.
[0003] Existing technologies employ manual inspection methods, with people holding handheld inspection instruments, which is inefficient. Utility Model Content
[0004] In order to overcome the above-mentioned defects in the existing technology, this utility model provides a tooling for detecting the tilt of wheel hub oil seals.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a wheel hub oil seal tilt detection fixture, including a placement ring, a connecting frame fixedly installed at the upper end of the placement ring, a main body ring fixedly installed at the upper end of the connecting frame, a rotating ring box rotatably installed on the inner side of the main body ring through a bearing, a mounting frame fixedly installed on the inner side of the rotating ring box, an electric telescopic rod fixedly installed at the upper end of the mounting frame, and a detection mechanism provided at the telescopic end of the electric telescopic rod.
[0006] Furthermore, a motor is fixedly installed on the front side of the main ring, a gear is fixedly connected to the power output shaft of the motor, an external gear ring is fitted on the rear side of the gear, and the external gear ring is fixedly installed on the upper outer side of the rotating ring box.
[0007] Furthermore, the detection mechanism includes a mounting base, which is fixedly installed on the telescopic end of the electric telescopic rod. A pressure sensor is fixedly installed at the lower end of the mounting base, and a ball is provided at the lower end of the pressure sensor.
[0008] Furthermore, a pull-wire displacement sensor is fixedly installed on the lower right side of the mounting bracket, and the pull-wire at the lower end of the pull-wire displacement sensor is connected to the mounting base.
[0009] Furthermore, a data processing device is fixedly installed on the outer right end of the connecting frame.
[0010] The beneficial effects of this utility model are as follows: By placing the placement ring on the wheel hub, the ball is at a certain distance from the upper end of the oil seal. The motor drives the gear to rotate, and the rotation of the rotating ring box inside the main ring is achieved through the cooperation of the gear and the external gear ring. This allows the ball to be tested multiple times at different positions on the oil seal. The extension and retraction of the electric telescopic rod moves the ball downward, so that the ball contacts the wheel hub oil seal. By adjusting the parameters, the ball is lifted upward immediately after the pressure sensor detects a fixed pressure. At this time, the data processing device records the displacement detected by the linear displacement sensor. By comparing the displacement values detected multiple times, the tilt of the wheel hub oil seal can be detected. Attached Figure Description
[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0012] Figure 1 This is the front view of the present invention;
[0013] Figure 2 This is a partial front sectional view of the present invention.
[0014] In the diagram: 1. Main ring, 2. Placement ring, 3. Connecting frame, 4. Data processing device, 5. Motor, 6. Gear, 7. External gear ring, 8. Electric telescopic rod, 9. Rotating ring box, 10. Mounting frame, 11. Wire displacement sensor, 12. Mounting base, 13. Pressure sensor, 14. Sphere. Detailed Implementation
[0015] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.
[0016] like Figure 1 As shown, this utility model includes a placement ring 2, a connecting frame 3 welded to the upper end of the placement ring 2, a main ring 1 welded to the upper end of the connecting frame 3, a rotating ring box 9 rotatably mounted on the inner side of the main ring 1 via a bearing, a motor 5 fixedly mounted on the front side of the main ring 1 via a motor mounting bracket, a gear 6 fixedly connected to the power output shaft of the motor 5, an external gear ring 7 meshing with the rear side of the gear 6, and the external gear ring 7 fixedly mounted on the upper outer side of the rotating ring box 9. By starting the motor 5, the gear 6 is driven to rotate, and the rotation of the rotating ring box 9 inside the main ring 1 is achieved through the cooperation of the gear 6 and the external gear ring 7.
[0017] like Figure 1 and Figure 2As shown, a mounting bracket 10 is fixedly installed on the inner side of the rotating ring box 9. An electric telescopic rod 8 is fixedly installed on the upper end of the mounting bracket 10. A detection mechanism is provided at the telescopic end of the electric telescopic rod 8. The detection mechanism includes a mounting base 12, which is fixedly installed on the telescopic end of the electric telescopic rod 8. A pressure sensor 13 is fixedly installed at the lower end of the mounting base 12. A ball 14 is provided at the lower end of the pressure sensor 13. A pull-wire displacement sensor 11 is fixedly installed on the lower right side of the mounting bracket 10. The pull-wire of the pull-wire displacement sensor 11 is connected to the mounting base 12. A data processing device 4 is fixedly installed on the outer right side of the connecting bracket 3. The ball 14 is moved downward by the telescopic action of the electric telescopic rod 8, so that the ball 14 contacts the wheel hub oil seal. By adjusting the parameters, the pressure sensor 13 immediately lifts the ball 14 upward after detecting the fixed pressure. At this time, the data processing device 4 records the displacement detected by the line displacement sensor 11 and makes a record.
[0018] In use, this invention involves placing the placement ring 2 on the wheel hub, with the ball 14 positioned a certain distance above the oil seal. The motor 5 drives the gear 6 to rotate, and the gear 6, in conjunction with the external gear ring 7, rotates the rotating ring box 9 within the main ring 1. This allows the ball 14 to perform multiple tests at different positions on the oil seal. The extension and retraction of the electric telescopic rod 8 moves the ball 14 downwards, bringing it into contact with the wheel hub oil seal. By adjusting parameters, the pressure sensor 13 detects a fixed pressure and immediately lifts the ball 14 upwards. At this point, the data processing device 4 records the displacement detected by the linear displacement sensor 11. This record is then compared with the displacement values obtained from multiple tests to determine the tilt of the wheel hub oil seal.
[0019] The above embodiments are merely exemplary embodiments of the present utility model and are not intended to limit the present utility model. The scope of protection of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present utility model.
Claims
1. A hub oil seal tilt detection tool comprising a placement ring (2) characterised in that: The upper end of the placement ring (2) is fixedly installed with a connecting frame (3), the upper end of the connecting frame (3) is fixedly installed with a main ring (1), the inner side of the main ring (1) is movably installed with a rotating ring box (9) through a bearing, the inner side of the rotating ring box (9) is fixedly installed with a mounting frame (10), the upper end of the mounting frame (10) is fixedly installed with an electric telescopic rod (8), and the telescopic end of the electric telescopic rod (8) is provided with a detection mechanism.
2. The hub oil seal tilt detection tool of claim 1, wherein, The motor (5) is fixedly installed on the front side of the main ring (1), and the gear (6) is fixedly connected to the power output shaft of the motor (5). The external gear ring (7) is installed on the rear side of the gear (6), and the external gear ring (7) is fixedly installed on the upper outer side of the rotating ring box (9).
3. The hub oil seal tilt detection tool of claim 1, wherein, The detection mechanism includes a mounting base (12), which is fixedly installed on the telescopic end of the electric telescopic rod (8). A pressure sensor (13) is fixedly installed at the lower end of the mounting base (12), and a ball (14) is provided at the lower end of the pressure sensor (13).
4. The hub oil seal tilt detection tool of claim 3, wherein, A pull wire displacement sensor (11) is fixedly installed on the lower right side of the mounting bracket (10), and the pull wire of the pull wire displacement sensor (11) is connected to the mounting base (12).
5. The hub oil seal tilt detection tool of claim 4, wherein, The data processing device (4) is fixedly installed on the outer right side of the connecting frame (3).