Gear transmission type automobile hub unit

Abstract

The utility model discloses a gear transmission type automobile hub unit, which relates to the technical field of automobile hub units, and comprises an outer ring, a long inner ring, a short inner ring and a flange plate, and the inner side of the outer ring is respectively connected with the long inner ring and the short inner ring. According to the gear transmission type automobile hub unit, when a connecting block moves, a fixing plate and a limiting column can be driven to move, when a rubber protrusion at the end of the limiting column moves to the surface of the outer side of a Hall sensor, the connecting block can be continuously pushed, and an elastic limiting block can extrude and fix a power line connected with the Hall sensor; then the fastening screw rod is rotated, so that the end part of the fastening screw rod can slide into the connecting block in a threaded manner, and at the moment, the power line connected with the Hall sensor is not easy to swing, so that the mounting stability of the Hall sensor is improved, and the Hall sensor and the power line can be simply and conveniently fixed in the manner; therefore, the Hall sensor is not easy to loosen and fall off.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile hub units, in particular to a gear transmission type automobile hub unit. Background Art

[0002] The automobile wheel hub unit is an important component of the automobile transmission system. It carries the wheel and allows the wheel to rotate relative to the body. The automobile wheel bearing is installed on the wheel and is a key component that supports the wheel and enables it to rotate around the central axis. It not only bears the weight of the wheel, but is also responsible for absorbing vibrations and reducing friction to ensure that the wheel can rotate steadily and smoothly. The existing automobile wheel hub unit still has certain defects when used.

[0003] In the prior art, the gear-driven automobile hub unit is a special hub unit, which includes a gear transmission structure and is used in the transmission system of an automobile. The gear-driven automobile hub unit is not only compact in structure but also has high installation precision, which enables it to perform excellent performance in the automobile transmission system. The Hall sensor can monitor the rotation speed of the tire. The Hall sensor in the traditional gear-driven automobile hub unit is prone to loosening and falling off due to long-term vibration and the influence of factors such as dust, which makes it difficult to use the Hall sensor normally, thereby causing adverse effects on the normal driving and safety of the automobile. Utility Model Content

[0004] The purpose of the present utility model is to provide a gear-driven automobile wheel hub unit to solve the problem of Hall sensors in automobile wheel hub units currently on the market being easily loosened, as mentioned in the above background art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gear-driven automobile wheel hub unit, comprising: an outer ring, a long inner ring, a short inner ring and a flange; the inner sides of the outer ring are respectively connected to the long inner ring and the short inner ring; the outer side of the outer ring is connected to the flange; rollers are installed between the outer ring and the long inner ring; needle roller bearings and deep groove ball bearings are respectively installed on the inner sides of the flange; a retaining frame is installed on the outer sides of the rollers; bolts are connected through the interior of the flange; a gear ring is provided on the outer side of the long inner ring; a gear body is installed between the flange and the long inner ring; A locking ring is provided between the gear body and the flange, a retaining ring is installed between the deep groove ball bearing and the flange, a back pressure cover is installed between the outer ring and the long inner ring, a seal is installed inside the back pressure cover, a Hall sensor is installed inside the outer ring, a dust cover is installed on the outer side of the flange near the needle roller bearing, an O-ring is installed on the outer side of the outer ring, a fixing plate is provided on the outer side of the flange near the outer ring, a screw is threadedly connected between the fixing plate and the flange, a connecting block is welded on the outer side of the fixing plate, and the connecting block is connected to a limiting column near the top of the Hall sensor.

[0006] Preferably, the top end of the limiting column is connected to a rubber protrusion, the front portion of the connecting block is provided with a groove, and the front portion of the connecting block is connected to a connecting shaft.

[0007] Preferably, a rotating block is rotatably connected to the outer side of the connecting shaft, and an elastic limiting block is connected to a side of the rotating block close to the groove.

[0008] Preferably, the internal thread of the rotating block is connected to a fastening screw, and the interior of the connecting block is provided with a threaded hole that matches the size of the fastening screw.

[0009] Preferably, the inner wall of the elastic limiting block is an arc-shaped surface.

[0010] Preferably, a rotating structure is formed between the rotating block and the connecting shaft.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: when the connecting block of the gear-driven automobile hub unit moves, it can drive the fixing plate and the limiting column to move; when the rubber protrusion at the end of the limiting column moves to the outer surface of the Hall sensor, it can continue to push the connecting block, so that the rubber protrusion can squeeze the surface of the Hall sensor and deform; then the fixing plate can be installed on the flange by two sets of screws, so that the rubber protrusion can continue to squeeze the surface of the Hall sensor, thereby fixing the Hall sensor; when the rotating block moves, it can rotate by the connecting shaft; when the rotating block rotates, it can drive the elastic limiting block and the fastening screw to move; when the elastic limiting block moves to the specified position in front of the groove, the elastic limiting block will squeeze and fix the power cord connected to the Hall sensor; then the fastening screw is rotated, so that the end of the fastening screw can be threaded and slid into the connecting block; at this time, the power cord connected to the Hall sensor is not easy to swing, thereby improving the stability of the installation of the Hall sensor; through the above method, the Hall sensor and the power cord can be fixed simply and conveniently, so that the Hall sensor is not easy to loosen or fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main cutaway structure of the present invention;

[0013] Figure 2 For this utility model Figure 1 Schematic diagram of the enlarged structure of A;

[0014] Figure 3 This is a schematic diagram of the top-down cross-sectional structure of the connecting block of the present invention.

[0015] In the figure: 1. Outer ring; 2. Long inner ring; 3. Short inner ring; 4. Flange; 5. Roller; 6. Needle roller bearing; 7. Deep groove ball bearing; 8. Cage; 9. Bolt; 10. Ring gear; 11. Gear body; 12. Locking ring; 13. Circlip; 14. Back pressure cover; 15. Seal; 16. Hall sensor; 17. Dust cover; 18. O-ring; 19. Fixing plate; 20. Screw; 21. Connecting block; 22. Limiting column; 23. Rubber protrusion; 24. Groove; 25. Connecting shaft; 26. Rotating block; 27. Elastic limiting block; 28. Fastening screw. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 3 It can be seen that the utility model provides a technical solution: a gear-driven automobile wheel hub unit, comprising: an outer ring 1, a long inner ring 2, a short inner ring 3 and a flange 4, the inner side of the outer ring 1 is respectively connected to the long inner ring 2 and the short inner ring 3, the outer side of the outer ring 1 is connected to the flange 4, a roller 5 is installed between the outer ring 1 and the long inner ring 2, a needle roller bearing 6 and a deep groove ball bearing 7 are respectively installed on the inner side of the flange 4, a retaining frame 8 is installed on the outer side of the roller 5, a bolt 9 is connected through the inside of the flange 4, a gear ring 10 is provided on the outer side of the long inner ring 2, a gear body 11 is jointly installed between the flange 4 and the long inner ring 2, a locking ring 12 is provided between the gear body 11 and the flange 4, a retaining ring 13 is installed between the deep groove ball bearing 7 and the flange 4, a back pressure cover 14 is installed between the outer ring 1 and the long inner ring 2, a seal 15 is installed inside the back pressure cover 14, a Hall sensor 16 is installed inside the outer ring 1, and a flange 4 is installed near the outer side of the needle roller bearing 6. Dust cover 17, an O-ring 18 is installed on the outside of the outer ring 1, a fixing plate 19 is provided on the outside of the flange 4 near the outer ring 1, a screw 20 is threadedly connected between the fixing plate 19 and the flange 4, a connecting block 21 is welded on the outside of the fixing plate 19, the connecting block 21 is connected to a limiting column 22 near the top of the Hall sensor 16, and a rubber protrusion 23 is connected to the top of the limiting column 22. A groove 24 is provided at the front of the connecting block 21, and a connecting shaft 25 is connected to the front of the connecting block 21. The outer side of the connecting shaft 25 is rotatably connected to a rotating block 26, and the side of the rotating block 26 close to the groove 24 is connected to an elastic limiting block 27. The internal thread of the rotating block 26 is connected to a fastening screw 28, and a threaded hole matching the size of the fastening screw 28 is provided inside the connecting block 21. The inner wall of the elastic limiting block 27 is an arc-shaped surface. A rotating structure is formed between the rotating block 26 and the connecting shaft 25, and a threaded groove matching the size of the screw 20 is provided inside the flange 4.

[0018] In specific implementation, the gear-driven automobile hub unit plays an important role in the automobile transmission system due to its unique structural design and excellent performance. During the long-term use of the automobile hub, the Hall sensor 16 is prone to loosening and falling off, which can easily cause adverse effects on the normal driving and safety of the automobile. When installing the Hall sensor 16, the Hall sensor 16 can be first inserted into the outer ring 1 so that one end of the Hall sensor 16 is located on the outside of the gear ring 10. At this time, the connecting block 21 can be pushed toward the direction of the Hall sensor 16. When the connecting block 21 moves, it can drive the fixing plate 19 and the limiting column 22 to move. When the rubber at the end of the limiting column 22 When the rubber protrusion 23 moves to the outer surface of the Hall sensor 16, the connecting block 21 can be continuously pushed so that the rubber protrusion 23 can squeeze the surface of the Hall sensor 16 and deform. Then, the fixing plate 19 can be installed on the flange 4 through two sets of screws 20, so that the rubber protrusion 23 can continue to squeeze the surface of the Hall sensor 16, thereby fixing the Hall sensor 16. Then, the power cord connected to the Hall sensor 16 is placed in the groove 24, and the rotating block 26 is pulled in the direction close to the groove 24. When the rotating block 26 moves, it can be rotated by the connecting shaft 25. When the rotating block 26 rotates, it can drive the elastic limit block 27 and the fastening screw 28 to move.

[0019] See Figure 1-Figure 3 It can be seen that when the elastic limit block 27 moves to the specified position in front of the groove 24, the elastic limit block 27 will squeeze and fix the power cord connected to the Hall sensor 16, and then rotate the fastening screw 28 so that the end of the fastening screw 28 can be threadedly slid into the connecting block 21. At this time, the power cord connected to the Hall sensor 16 is not easy to swing, thereby improving the stability of the installation of the Hall sensor 16. The above method can be used to simply and conveniently fix the Hall sensor 16 and the power cord, making it difficult for the Hall sensor 16 to loosen or fall off.

[0020] To sum up, when using the gear-driven automobile wheel hub unit, the Hall sensor 16 can be first inserted into the outer ring 1 so that one end of the Hall sensor 16 is located on the outside of the gear ring 10. At this time, the connecting block 21 can be pushed toward the direction of the Hall sensor 16, and the elastic limit block 27 will squeeze and fix the power cord connected to the Hall sensor 16. Then the fastening screw 28 is rotated so that the end of the fastening screw 28 can be threadedly slid into the connecting block 21. At this time, the power cord connected to the Hall sensor 16 is not easy to swing, thereby improving the stability of the installation of the Hall sensor 16. The above method can be used to simply and conveniently fix the Hall sensor 16 and the power cord, so that the Hall sensor 16 is not easy to loosen or fall off. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0021] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gear-driven automobile wheel hub unit, comprising: The outer ring (1), the long inner ring (2), the short inner ring (3) and the flange (4) are characterized by: The inner side of the outer ring (1) is connected to a long inner ring (2) and a short inner ring (3), respectively, and the outer side of the outer ring (1) is connected to a flange (4); A roller (5) is installed between the outer ring (1) and the long inner ring (2), a needle bearing (6) and a deep groove ball bearing (7) are installed on the inner side of the flange (4), a retaining frame (8) is installed on the outer side of the roller (5), a bolt (9) is connected through the interior of the flange (4), a gear ring (10) is provided on the outer side of the long inner ring (2), a gear body (11) is installed between the flange (4) and the long inner ring (2), a locking ring (12) is provided between the gear body (11) and the flange (4), a retaining ring (13) is installed between the deep groove ball bearing (7) and the flange (4), and a retaining ring (13) is installed between the outer ring (1) and the long inner ring (2). A back pressure cover (14) is installed, a seal (15) is installed inside the back pressure cover (14), a Hall sensor (16) is installed inside the outer ring (1), a dust cover (17) is installed on the outer side of the flange (4) close to the needle roller bearing (6), an O-ring (18) is installed on the outer side of the outer ring (1), a fixing plate (19) is provided on the outer side of the flange (4) close to the outer ring (1), a screw (20) is threadedly connected between the fixing plate (19) and the flange (4), a connecting block (21) is welded on the outer side of the fixing plate (19), and the connecting block (21) is connected to a limiting column (22) near the top of the Hall sensor (16).

2. The gear-driven automobile wheel hub unit according to claim 1, characterized in that: The top end of the limiting column (22) is connected to a rubber protrusion (23), the front portion of the connecting block (21) is provided with a groove (24), and the front portion of the connecting block (21) is connected to a connecting shaft (25).

3. The gear-driven automobile wheel hub unit according to claim 2, characterized in that: The outer side of the connecting shaft (25) is rotatably connected to a rotating block (26), and the side of the rotating block (26) close to the groove (24) is connected to an elastic limiting block (27).

4. The gear-driven automobile wheel hub unit according to claim 3, characterized in that: The internal thread of the rotating block (26) is connected to a fastening screw (28), and the interior of the connecting block (21) is provided with a threaded hole that matches the size of the fastening screw (28).

5. The gear-driven automobile wheel hub unit according to claim 4, characterized in that: The inner wall of the elastic limiting block (27) is an arc-shaped surface.

6. The gear-driven automobile wheel hub unit according to claim 4, characterized in that: A rotating structure is formed between the rotating block (26) and the connecting shaft (25).

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