Automobile hub bearing sealing structure

Abstract

The utility model discloses an automobile hub bearing sealing structure which comprises a base and a shaft rod movably connected to the top of the base, sealing mechanisms are connected to the two sides of the bottom of the base in a sliding mode, each sealing mechanism comprises a pin shaft, the top of each pin shaft is movably connected with a vertical plate through a rotating shaft, the top of the inner side of each vertical plate is fixedly connected with a connecting block, and the connecting blocks are fixedly connected with the connecting blocks. A sealing semicircular cover is fixedly connected to the inner side of the connecting block, the inner side of the sealing semicircular cover is attached to the joint of the base and the shaft rod, outer plates are fixedly connected to the front face and the back face of the vertical plate, fixing plates are fixedly connected to the outer sides of the outer plates, and springs are fixedly connected to the outer sides of the fixing plates. And the outer side of the spring is fixedly connected with a sliding plate. According to the automobile hub shaft, the phenomenon that sealing is not tight due to the fact that the automobile hub shaft is prone to deformation after a long time in the prior art is changed, the sealing semicircular cover is adopted to cover the connecting position of the base and the shaft rod, sealing is not tight, and sealing quality is not affected.

Description

Technical Field

[0001] This utility model relates to the field of automotive wheel hub technology, specifically to a sealing structure for automotive wheel hub bearings. Background Technology

[0002] Automotive wheel bearings are key components in the automotive chassis system. Their main functions are to support the weight of the vehicle body, transmit power, and ensure that the wheels rotate smoothly and flexibly.

[0003] According to a patent published on the China Patent Network, the patent title is: "A Sealing Structure for Automobile Wheel Hub Bearings," patent application number: 202323470332.X. It includes a base plate and a disassembly aid. An outer ring is fixedly connected to the top of the base plate, and an inner ring is also fixedly connected to the top of the base plate. Multiple mounting holes are provided inside the base plate. A sealing ring is movably fitted onto the outside of the inner ring, and the sealing ring is in contact with the inner wall of the outer ring. A pressure plate is provided between the outer ring and the inner ring to promote heat dissipation and installation of the sealing ring. Four fixing points are provided on the top of the pressure plate for fixing the sealing ring. The component; the disassembly aid includes two limiting rings, which are movably fitted inside the outer ring, and four uprights are fixedly connected inside the two limiting rings; this utility model can fix the sealing ring by fixing the component, and the disassembly aid can make the installation and disassembly of the sealing ring more convenient and quick, thereby improving work efficiency; the sealing method of the above-mentioned automotive wheel hub bearings is to use a sealing gasket at the connection, but the sealing gasket will be deformed due to external force or its own pressure after long-term use, resulting in a looser seal and affecting the quality of the seal.

[0004] Therefore, it is necessary to redesign the car wheel hub axle to effectively prevent poor sealing. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a sealing structure for automotive wheel hub bearings, which has the advantage of increasing sealing performance and solves the problem of poor sealing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealing structure for an automotive wheel hub bearing, including a base;

[0007] A movable shaft connected to the top of the base;

[0008] Sealing mechanisms are slidably connected to both sides of the bottom of the base. Each sealing mechanism includes a pin, the top of which is movably connected to a vertical plate via a rotating shaft. A connecting block is fixedly connected to the top of the inner side of the vertical plate, and a sealing semicircular cover is fixedly connected to the inner side of the connecting block. The inner side of the sealing semicircular cover is in contact with the connection between the base and the shaft. An outer plate is fixedly connected to both the front and back of the vertical plate. A fixing plate is fixedly connected to the outer side of the outer plate, and a spring is fixedly connected to the outer side of the fixing plate. A sliding plate is fixedly connected to the outer side of the spring, and the inner side of the sliding plate is slidably connected to the outer plate. An inclined plate is fixedly connected to the outer side of the inclined plate, and a connecting plate is fixedly connected to the outer side of the connecting plate. A locking block is fixedly connected to the inner side of the connecting plate, and the inner side of the locking block extends into the interior of the base.

[0009] As a preferred embodiment of this utility model, positioning mechanisms are movably connected to both sides of the top of the base and to the front of the pin via rotating shafts. A rear plate is fixedly connected to the back of the positioning mechanism, a stop block is fixedly connected to the top of the rear plate, a longitudinal plate is fixedly connected to the front of the top of the rear plate, a protruding plate is fixedly connected to the outer side of the longitudinal plate, and a pressure block is fixedly connected to the bottom of the protruding plate, with the bottom of the pressure block penetrating into the interior of the base.

[0010] As a preferred embodiment of this utility model, the base has sliding grooves on both sides of its top, and the bottom of the pin is slidably connected inside the sliding grooves.

[0011] As a preferred embodiment of this utility model, a vertical groove is provided on the outer side of the longitudinal plate, and the inner side of the convex plate is slidably connected to the inside of the vertical groove.

[0012] As a preferred embodiment of this utility model, a handle frame is fixedly connected to the outer side of the vertical plate, and the handle frame is used in conjunction with the vertical plate.

[0013] As a preferred embodiment of this invention, the top of the connecting block is fixedly connected to an inclined block, and the inner side of the inclined block is fixedly connected to a sealing semicircular cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model of automotive wheel hub shaft changes the traditional phenomenon that it is prone to deformation over time, leading to poor sealing. It adopts a sealing semi-circular cover to cover the connection between the base and the shaft, which will prevent the seal from becoming loose and will not affect the quality of the seal.

[0016] 2. This utility model, through the setting of a positioning mechanism, can limit the pin shaft and avoid the phenomenon of springback.

[0017] 3. The present invention, through the setting of the sliding groove, enables the pin to slide more smoothly inside the base, reduces the friction between the pin and the base, and extends the service life of the pin.

[0018] 4. The vertical groove in this invention enables the convex plate to move more stably and prevents tilting.

[0019] 5. The design of the handle frame in this utility model makes it easier for users to pull the vertical plate, thus increasing user convenience.

[0020] 6. By setting the inclined block, this utility model can make the connecting block more securely connected to the sealing semicircular cover, preventing separation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a structural diagram of the sealing mechanism and positioning mechanism of this utility model;

[0023] Figure 3 The structure of this utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0024] Figure 4 This is a partial three-dimensional view of the present invention.

[0025] In the diagram: 1. Base; 2. Shaft; 3. Sealing mechanism; 4. Pin; 5. Vertical plate; 6. Connecting block; 7. Sealing semicircular cover; 8. Outer plate; 9. Fixing plate; 10. Spring; 11. Slide plate; 12. Inclined plate; 13. Connecting plate; 14. Locking block; 15. Positioning mechanism; 16. Rear plate; 17. Stop block; 18. Longitudinal plate; 19. Protruding plate; 20. Pressure block; 21. Slide groove; 22. Vertical groove; 23. Handle frame; 24. Inclined block. Detailed Implementation

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

[0027] like Figures 1 to 4 As shown, the present invention provides a sealing structure for an automotive wheel hub bearing, including a base 1;

[0028] A shaft 2 is movably connected to the top of the base 1;

[0029] Sealing mechanisms 3 are slidably connected to both sides of the bottom of the base 1. The sealing mechanism 3 includes a pin 4. The top of the pin 4 is movably connected to a vertical plate 5 via a rotating shaft. A connecting block 6 is fixedly connected to the top of the inner side of the vertical plate 5. A sealing semicircular cover 7 is fixedly connected to the inner side of the connecting block 6. The inner side of the sealing semicircular cover 7 is in contact with the connection between the base 1 and the shaft 2. An outer plate 8 is fixedly connected to both the front and back of the vertical plate 5. A fixing plate 9 is fixedly connected to the outer side of the outer plate 8. A spring 10 is fixedly connected to the outer side of the fixing plate 9. A sliding plate 11 is fixedly connected to the outer side of the spring 10. The inner side of the sliding plate 11 is slidably connected to the outer plate 8. An inclined plate 12 is fixedly connected to the outer side of the sliding plate 11. A connecting plate 13 is fixedly connected to the outer side of the inclined plate 12. A locking block 14 is fixedly connected to the inner side of the connecting plate 13. The inner side of the locking block 14 extends into the interior of the base 1.

[0030] refer to Figure 1 , Figure 2 and Figure 3 Positioning mechanisms 15 are movably connected to the top of the base 1 on both sides and in front of the pin 4 via rotating shafts. A back plate 16 is fixedly connected to the back of the positioning mechanism 15. A stop block 17 is fixedly connected to the top of the back plate 16. A longitudinal plate 18 is fixedly connected to the front of the top of the back plate 16. A protruding plate 19 is fixedly connected to the outer side of the longitudinal plate 18. A pressure block 20 is fixedly connected to the bottom of the protruding plate 19. The bottom of the pressure block 20 extends into the interior of the base 1.

[0031] As a technical optimization of this utility model, the positioning mechanism 15 can limit the pin 4 and prevent springback.

[0032] refer to Figure 4 The base 1 has grooves 21 on both sides of the top, and the bottom of the pin 4 is slidably connected inside the groove 21.

[0033] As a technical optimization of this utility model, the setting of the sliding groove 21 enables the pin 4 to slide more smoothly inside the base 1, reduces the friction between the pin 4 and the base 1, and extends the service life of the pin 4.

[0034] refer to Figure 3 A vertical groove 22 is provided on the outer side of the longitudinal plate 18, and the inner side of the protruding plate 19 is slidably connected to the inside of the vertical groove 22.

[0035] As a technical optimization of this utility model, the vertical groove 22 enables the convex plate 19 to move more stably and prevents tilting.

[0036] refer to Figure 2 A handle frame 23 is fixedly connected to the outside of the vertical plate 5, and the handle frame 23 is used in conjunction with the vertical plate 5.

[0037] As a technical optimization of this utility model, the handle frame 23 makes it easier for users to pull the vertical plate 5, thus increasing user convenience.

[0038] refer to Figure 2 The top of the connecting block 6 is fixedly connected to the inclined block 24, and the inner side of the inclined block 24 is fixedly connected to the sealing semicircular cover 7.

[0039] As a technical optimization of this utility model, the inclined block 24 enables the connecting block 6 to be more securely connected to the sealing semicircular cover 7, preventing separation.

[0040] The working principle and usage process of this utility model are as follows: First, the user flips the vertical plate 5 inward to make it vertical. Then, the user pushes the vertical plate 5, which moves the connecting block 6 and the sealing semicircular cover 7 inward, so that the sealing semicircular cover 7 covers the connection between the base 1 and the shaft 2, thereby increasing the sealing effect. Then, the user rotates the rear plate 16, which rotates the stop block 17, so that the stop block 17 blocks the outside of the pin 4. Then, the user presses down on the pressure block 20, so that the pressure block 20 presses against the inside of the base 1, thereby achieving the effect of limiting the pin 4.

[0041] In summary, this automotive wheel hub bearing sealing structure addresses the issue of traditional wheel hub shafts deforming over time, leading to loose seals. By using a semi-circular sealing cover 7 to enclose the connection between the base 1 and the shaft 2, the seal is prevented from becoming loose and its quality is not affected.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] 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. A sealing structure for an automotive wheel hub bearing, comprising a base (1); A shaft (2) is movably connected to the top of the base (1); Its features are: Both sides of the bottom of the base (1) are slidably connected to sealing mechanisms (3). The sealing mechanism (3) includes a pin (4). The top of the pin (4) is movably connected to a vertical plate (5) via a rotating shaft. A connecting block (6) is fixedly connected to the top of the inner side of the vertical plate (5). A sealing semicircular cover (7) is fixedly connected to the inner side of the connecting block (6). The inner side of the sealing semicircular cover (7) is in contact with the connection between the base (1) and the shaft (2). An outer plate (8) is fixedly connected to both the front and back of the vertical plate (5). A fixing plate (9) is fixedly connected to the outside of the 8), a spring (10) is fixedly connected to the outside of the fixing plate (9), a sliding plate (11) is fixedly connected to the outside of the spring (10), the inner side of the sliding plate (11) is slidably connected to the outer plate (8), an inclined plate (12) is fixedly connected to the outside of the sliding plate (11), a connecting plate (13) is fixedly connected to the outside of the inclined plate (12), a locking block (14) is fixedly connected to the inner side of the connecting plate (13), and the inner side of the locking block (14) extends into the interior of the base (1).

2. The sealing structure for an automotive wheel hub bearing according to claim 1, characterized in that: Positioning mechanisms (15) are movably connected to the top of the base (1) on both sides and in front of the pin (4) via rotating shafts. A back plate (16) is fixedly connected to the back of the positioning mechanism (15). A stop block (17) is fixedly connected to the top of the back plate (16). A longitudinal plate (18) is fixedly connected to the front of the top of the back plate (16). A protruding plate (19) is fixedly connected to the outer side of the longitudinal plate (18). A pressure block (20) is fixedly connected to the bottom of the protruding plate (19). The bottom of the pressure block (20) extends into the interior of the base (1).

3. The sealing structure for an automotive wheel hub bearing according to claim 1, characterized in that: The base (1) has grooves (21) on both sides of its top, and the bottom of the pin (4) is slidably connected to the inside of the grooves (21).

4. The sealing structure for an automotive wheel hub bearing according to claim 2, characterized in that: The outer side of the longitudinal plate (18) is provided with a vertical groove (22), and the inner side of the protruding plate (19) is slidably connected to the inside of the vertical groove (22).

5. The sealing structure for an automotive wheel hub bearing according to claim 1, characterized in that: A handle frame (23) is fixedly connected to the outside of the vertical plate (5), and the handle frame (23) is used in conjunction with the vertical plate (5).

6. The sealing structure for an automotive wheel hub bearing according to claim 1, characterized in that: The top of the connecting block (6) is fixedly connected to an inclined block (24), and the inner side of the inclined block (24) is fixedly connected to a sealing semicircular cover (7).

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