A hub bearing assembly

Abstract

This invention discloses a wheel hub bearing assembly, relating to the field of wheel hub bearings, comprising a main bearing and an outer ring flange. A positioning shell is fixedly mounted on one side of the outer ring flange. A fixing bolt is threaded into the internal thread of a positioning hole on one side of the outer ring flange. A positioning pin is threaded into one end of the fixing bolt. A positioning block is mounted at one end of the positioning pin. A positioning disk is elastically movably mounted inside the positioning shell. A rotating disk is rotatably mounted at one end of the positioning disk. Multiple insertion pins are elastically movably mounted at one end of the positioning disk. A one-way ratchet is rotatably connected to the inner wall of the positioning shell. This invention, through a one-way ratchet and a self-locking mechanism, allows the fixing bolt to be screwed into the positioning shell clockwise, but will not disengage from the positioning shell when rotated counterclockwise. The fixing bolt can only be unscrewed through a specific unlocking method, effectively protecting the entire wheel hub bearing assembly and preventing theft.

Description

Technical Field

[0001] This invention relates to the field of wheel hub bearings, specifically to a wheel hub bearing assembly. Background Technology

[0002] Automotive wheel hub bearings are components used in automobile axles to bear weight and provide precise guidance for the rotation of the wheel hub. They bear both axial and radial loads and are an important part of the vehicle's load-bearing and rotation. Wheel hub bearing units were developed based on standard angular contact ball bearings and tapered roller bearings. They integrate two sets of bearings into one unit, offering advantages such as good assembly performance, elimination of clearance adjustment, light weight, compact structure, large load capacity, pre-lubrication as a sealed bearing, elimination of external hub seals, and maintenance-free operation. They are widely used in passenger cars and are increasingly being used in heavy-duty trucks.

[0003] To facilitate car maintenance, existing wheel bearings will have a flange installed on the bearing to secure it. The bearing can be easily put onto the wheel axle and secured with a nut, making car maintenance easier. However, the nut of the wheel bearing is exposed to the external environment and can be easily removed with various standard socket wrenches, which may lead to its loss.

[0004] Existing anti-theft methods generally involve covering the nuts to prevent others from directly disassembling them. However, this method is not very effective at preventing theft and also hinders maintenance personnel from performing quick repairs and disassemblies. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a wheel hub bearing assembly to solve the technical problem that the anti-theft effect of general wheel hub bearings is not very good.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wheel hub bearing assembly, comprising a main bearing and an outer ring flange, a positioning shell fixedly disposed on one side of the outer ring flange, a fixing bolt threadedly connected to the internal thread of a positioning hole on one side of the outer ring flange, a positioning pin threadedly connected to one end of the fixing bolt, a positioning block disposed at one end of the positioning pin, a positioning disk elastically and movably disposed inside the positioning shell, a rotating disk rotatably disposed at one end of the positioning disk, a plurality of insert pins elastically and movably disposed at one end of the positioning disk, a one-way ratchet rotatably connected to the inner wall of the positioning shell, the inner wall of the one-way ratchet threadedly connected to the fixing bolt, and a pressing self-locking mechanism movably and penetratingly disposed on the outer wall of the positioning shell.

[0007] By adopting the above technical solution, the present invention enables the fixing bolt to be screwed into the positioning shell clockwise and not to leave the positioning shell when rotated counterclockwise through a one-way ratchet and a self-locking mechanism. The fixing bolt can only be screwed out by unlocking in a specific way, which effectively protects the entire wheel hub bearing assembly and prevents theft.

[0008] The present invention is further configured such that a first spring is provided at one end of the inner wall of the positioning shell, and one end of the first spring is connected to the positioning disk.

[0009] By adopting the above technical solution, the positioning plate is pushed outward by the first spring, thereby achieving the limiting effect of the positioning plate and the rotating plate on the fixing bolt.

[0010] The present invention is further configured such that a second spring is provided inside the groove at one end of the positioning disk, and one end of the second spring is connected to one end of the insertion post.

[0011] By adopting the above technical solution, the second spring can insert the pin into the slot.

[0012] The present invention is further configured such that one end of the one-way ratchet is provided with a slot, and the shape and size of the slot are matched with the shape and size of the insert.

[0013] By adopting the above technical solution, the slot limits and fixes the insertion post.

[0014] The invention is further configured such that the outer walls of the rotating disk and the positioning disk are provided with fixing grooves, and the shape and size of the fixing grooves are matched with the shape and size of the pressing self-locking mechanism.

[0015] By adopting the above technical solution, the fixing groove limits and fixes the pressing self-locking mechanism.

[0016] The invention is further configured such that the unidirectional ratchet tooth engages with the pawl, with the ratchet tooth angled between 10° and 20°.

[0017] By adopting the above technical solution, the noise of the one-way ratchet operation is reduced.

[0018] The present invention is further configured such that the outer surface of one end of the positioning block is prismatic.

[0019] By adopting the above technical solution, the prism shape can be easily positioned.

[0020] In summary, the present invention has the following advantages: the present invention uses a one-way ratchet and a self-locking mechanism to enable the fixing bolt to be screwed into the positioning shell clockwise, and will not leave the positioning shell when rotated counterclockwise. The fixing bolt can only be screwed out by unlocking in a specific way, which effectively protects the entire wheel hub bearing assembly and prevents theft. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a cross-sectional view of the structure of the present invention with the fixing bolt inserted.

[0023] Figure 3 This is a cross-sectional view of the structure of the present invention with the fixing bolt in the withdrawn state;

[0024] Figure 4 For the present invention Figure 2 Enlarged view of the structure at point A;

[0025] Figure 5 For the present invention Figure 3 Enlarged view of the structure at point B;

[0026] Figure 6 This is a schematic diagram showing the connection between the fixing bolt and the one-way ratchet of the present invention.

[0027] In the diagram: 1. Main bearing; 2. Outer flange; 3. Positioning housing; 4. Fixing bolt; 5. Positioning pin; 6. One-way ratchet; 7. Rotating disc; 8. Positioning disc; 9. First spring; 10. Press-lock mechanism; 11. Positioning block; 12. Insert pin; 13. Second spring; 14. Slot; 15. Fixing groove. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] A hub bearing assembly, such as Figure 1-6 As shown, the assembly includes a main bearing 1 and an outer ring flange 2. The outer ring flange 2 is located on the outer wall of the main bearing 1. The main bearing 1 is connected to the wheel hub through the outer ring flange 2. By passing bolts through the outer ring flange 2 and connecting them to the wheel hub, the entire wheel hub bearing assembly can be installed.

[0030] A positioning shell 3 is fixedly installed on one side of the outer flange 2. A fixing bolt 4 is connected to the internal thread of the positioning hole on one side of the outer flange 2. A positioning pin 5 is connected to the internal thread of one end of the fixing bolt 4. A positioning block 11 is installed at one end of the positioning pin 5. A positioning disk 8 is elastically and movably installed inside the positioning shell 3. A rotating disk 7 is rotatably installed at one end of the positioning disk 8. When the fixing bolt 4 needs to be screwed into the interior of the positioning shell 3 clockwise, the fixing bolt 4 and the positioning pin 5 rotate synchronously until the positioning block 11 is inserted into the positioning groove at one end of the rotating disk 7. The outer surface of one end of the positioning block 11 is prismatic, which facilitates the limiting of the positioning block 11. At this time, the fixing bolt 4 continues to rotate, but the positioning pin 5 will rotate synchronously and turn out from the fixing bolt 4. At this time, the positioning pin 5 will push the positioning disk 8 and the rotating disk 7 to move inward until the fixing bolt 4 turns to the corresponding position and stops.

[0031] A first spring 9 is provided at one end of the inner wall of the positioning shell 3. One end of the first spring 9 is connected to the positioning disk 8. A second spring 13 is provided inside the groove at one end of the positioning disk 8. One end of the second spring 13 is connected to one end of the insertion post 12.

[0032] A self-locking mechanism 10 is movably installed through the outer wall of the positioning shell 3. The outer walls of the rotating disk 7 and the positioning disk 8 are provided with fixing grooves 15. The shape and size of the fixing grooves 15 match the shape and size of the self-locking mechanism 10. In the initial state, the self-locking mechanism 10 is located inside the fixing groove 15. Therefore, when the fixing bolt 4 is screwed into the positioning shell 3, the positioning disk 8 and the rotating disk 7 will fix the positioning post 5, making it easy for the positioning post 5 to turn out from the fixing bolt 4. When the fixing bolt 4 is screwed in place, the self-locking mechanism 10 is pressed. The self-locking mechanism 10 is a prior art technology, such as a ballpoint pen or a self-locking electrical switch. The principle is that pressing once locks and pressing a second time unlocks. Therefore, pressing the self-locking mechanism 10 at this time will release the self-locking mechanism 10 from the self-locking state and pop it outward. At this time, the positioning disk 8 and the rotating disk 7 are not restricted or fixed.

[0033] When the self-locking mechanism 10 is pressed to release the self-locking state, the fixing bolt 4 is rotated in the opposite direction. The fixing bolt 4 and the positioning post 5 will drive the rotating disk 7 to rotate synchronously. Due to the action of the one-way ratchet 6, the fixing bolt 4 rotates in the original position and will not rotate outward to disengage. At this time, it can play a corresponding anti-theft role. Furthermore, the fixing bolt 4 will not rotate or even disengage due to bumps during the operation of the car.

[0034] When maintenance personnel need to release the fixing bolt 4, they first press the self-locking mechanism 10 to put it in a self-locking state. If the self-locking mechanism 10 does not correspond to the fixing groove 15, the fixing bolt 4 can be slowly reversed until the self-locking mechanism 10 can be inserted into the fixing groove 15. When the self-locking mechanism 10 is in a self-locking state, the fixing bolt 4 is rotated in the opposite direction. The positioning plate 8 and the rotating plate 7 will limit the positioning post 5 and the positioning block 11. Therefore, the rotation of the fixing bolt 4 will cause the positioning post 5 to retract into the interior of the fixing bolt 4. At this time, the positioning plate 8 and the rotating plate 7 will move outward with the fixing bolt 4 under the action of the first spring 9 until the rotating plate 7 is released from the limit of the self-locking mechanism 10. At this time, the positioning plate 8 is still under the limit of the self-locking mechanism 10. The rotation of the fixing bolt 4 will drive the rotating plate 7 to rotate along the positioning plate 8.

[0035] One end of the one-way ratchet 6 is provided with a slot 14. The shape and size of the slot 14 match the shape and size of the insert 12. At the same time, when the positioning plate 8 and the rotating plate 7 move outward with the fixing bolt 4 under the action of the first spring 9, the insert 12 is inserted into the slot 14 of the one-way ratchet 6 under the action of the second spring 13, which limits and fixes the one-way ratchet 6. At this time, the fixing bolt 4 will reverse and disengage from the internal thread of the one-way ratchet 6 until the fixing bolt 4 is completely disengaged from the positioning shell 3, thus removing the fixing bolt 4.

[0036] The one-way ratchet has 6 ratchet teeth that work with the pawl. The travel range of the ratchet teeth is 10°-20°. Because the travel range of the ratchet teeth is small, the knocking sound of the pawl is also smaller during use. Non-maintenance personnel are unaware of the anti-theft mechanism of this anti-theft structure, which further enhances the anti-theft capability of the wheel hub bearing assembly.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A hub bearing assembly, comprising a main bearing (1) and an outer ring flange (2), characterized in that: A positioning shell (3) is fixedly installed on one side of the outer flange (2). A fixing bolt (4) is connected to the internal thread of the positioning hole on one side of the outer flange (2). A positioning pin (5) is connected to the internal thread of one end of the fixing bolt (4). A positioning block (11) is provided at one end of the positioning pin (5). A positioning disk (8) is elastically and movably installed inside the positioning shell (3). A rotating disk (7) is rotatably installed at one end of the positioning disk (8). Multiple insertion pins (12) are elastically and movably installed at one end of the positioning disk (8). The inner wall of the device is rotatably connected to a one-way ratchet (6), and the inner wall of the one-way ratchet (6) is threadedly connected to a fixing bolt (4). The outer wall of the positioning shell (3) is movably connected to a pressing self-locking mechanism (10). One end of the one-way ratchet (6) is provided with a slot (14), and the shape and size of the slot (14) are matched with the shape and size of the insert (12). The outer walls of the rotating disk (7) and the positioning disk (8) are provided with fixing grooves (15), and the shape and size of the fixing grooves (15) are matched with the shape and size of the pressing self-locking mechanism (10).

2. A hub bearing assembly according to claim 1, characterized in that: A first spring (9) is provided at one end of the inner wall of the positioning shell (3), and one end of the first spring (9) is connected to the positioning disk (8).

3. A hub bearing assembly according to claim 1, characterized in that: A second spring (13) is provided inside the groove at one end of the positioning disk (8), and one end of the second spring (13) is connected to one end of the insertion post (12).

4. A hub bearing assembly according to claim 1, characterized in that: The one-way ratchet (6) has ratchet teeth that engage with pawls, and the travel range of the ratchet teeth is 10°-20°.

5. A hub bearing assembly according to claim 1, characterized in that: The outer surface of one end of the positioning block (11) is prismatic.

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