Hub bearing assembly

Abstract

The invention discloses a hub bearing assembly and relates to the field of hub bearings, the hub bearing assembly comprises a main bearing and an outer ring flange, a positioning shell is fixedly arranged on one side of the outer ring flange, a fixing bolt is in threaded connection with the interior of a positioning hole in one side of the outer ring flange, and a positioning column is in threaded connection with the interior of one end of the fixing bolt; a positioning block is arranged at one end of the positioning column, a positioning disc is elastically and movably arranged in the positioning shell, a rotating disc is rotatably arranged at one end of the positioning disc, a plurality of inserting columns are elastically and movably arranged at one end of the positioning disc, and a one-way ratchet wheel is rotatably connected to the inner wall of the positioning shell. The fixing bolt can be screwed into the positioning shell clockwise through the one-way ratchet wheel and the pressing self-locking mechanism, the fixing bolt cannot leave the positioning shell when rotating anticlockwise, the fixing bolt can be screwed out only through unlocking in a specific mode, the whole hub bearing assembly is effectively protected, and the situation that the hub bearing assembly is stolen is prevented.

Description

Technical Field

[0001] The present invention relates to the field of hub bearings, and specifically to a hub bearing assembly. Background Art

[0002] Automotive hub bearings are components applied at the axles of automobiles to bear loads and provide precise guidance for the rotation of the hubs. They bear both axial loads and radial loads and are important components for the load-bearing and rotation of automobiles. The hub bearing unit is developed on the basis of standard angular contact ball bearings and tapered roller bearings. It integrates two sets of bearings, has advantages such as good assembly performance, can omit clearance adjustment, light weight, compact structure, large load capacity, can be pre-filled with grease as a sealed bearing, omit the external hub seal and be maintenance-free, and has been widely used in sedans and is also gradually expanding its application in heavy-duty trucks.

[0003] For the convenience of automobile maintenance, a flange for fixing the bearing is installed on the existing hub bearing, and the bearing can be simply sleeved on the axle and fixed with a nut, making the maintenance of the automobile easier. However, the nut of the hub bearing is exposed to the external environment and can be easily disassembled and lost by various standard socket wrenches.

[0004] The existing anti-theft methods generally block the nut to prevent others from directly disassembling the nut, but this method has a poor anti-theft effect and is not conducive to quick maintenance and disassembly by maintenance personnel. Summary of the Invention

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

[0006] To achieve the above purpose, the present invention provides the following technical solution: A hub bearing assembly includes a main bearing and an outer ring flange. A positioning shell is fixedly arranged on one side of the outer ring flange. A fixing bolt is threadedly connected inside a positioning hole on one side of the outer ring flange. A positioning column is threadedly connected inside one end of the fixing bolt. A positioning block is arranged at one end of the positioning column. A positioning disk is elastically movably arranged inside the positioning shell. A rotating disk is rotatably arranged at one end of the positioning disk. A plurality of insertion columns are elastically movably arranged at one end of the positioning disk. A one-way ratchet is rotatably connected to the inner wall of the positioning shell. The inner wall of the one-way ratchet is threadedly connected to the fixing bolt. A pressing self-locking mechanism is movably penetrated through the outer wall of the positioning shell.

[0007] By adopting the above technical solutions, the present invention realizes that the fixing bolt can be screwed into the positioning shell clockwise through the one-way ratchet and the pressing self-locking mechanism, and will not leave the positioning shell when rotated counterclockwise. Only by unlocking in a specific way can the fixing bolt be screwed out, effectively protecting the overall hub bearing assembly and preventing theft.

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

[0009] By adopting the above technical solutions, the first spring pushes the positioning disk outwards to realize the limiting effect of the positioning disk and the rotating disk on the fixing bolt.

[0010] The present invention is further configured such that a second spring is provided inside a 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 solutions, the second spring can insert the insertion post into the insertion slot.

[0012] The present invention is further configured such that a slot is formed at one end of the one-way ratchet, and the shape and size of the slot are both mutually matched with the shape and size of the insertion post.

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

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

[0015] By adopting the above technical solutions, the fixing grooves limit and fix the pressing self-locking mechanism.

[0016] The present invention is further configured such that the ratchet teeth of the one-way ratchet cooperate with the ratchet pawl, and the ratchet teeth are 10° - 20°.

[0017] By adopting the above technical solutions, the one-way ratchet operates with less noise.

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

[0019] By adopting the above technical solutions, the rhomboid shape facilitates positioning.

[0020] In summary, the present invention mainly has the following beneficial effects: The present invention realizes that the fixing bolt can be screwed into the positioning shell clockwise through the one-way ratchet and the pressing self-locking mechanism, and will not leave the positioning shell when rotated counterclockwise. Only by unlocking in a specific way can the fixing bolt be screwed out, effectively protecting the overall hub bearing assembly and preventing theft. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 Cross-sectional view of the structure in the state where the fixing bolt of the present invention is inserted;

[0023] Figure 3 Cross-sectional view of the structure in the state where the fixing bolt of the present invention is withdrawn;

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

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

[0026] Figure 6 Schematic diagram of the connection between the fixing bolt and the one-way ratchet of the present invention.

[0027] In the figure: 1, main bearing; 2, outer ring flange; 3, positioning shell; 4, fixing bolt; 5, positioning column; 6, one-way ratchet; 7, rotating disc; 8, positioning disc; 9, first spring; 10, pressing self-locking mechanism; 11, positioning block; 12, inserting column; 13, second spring; 14, slot; 15, fixing groove. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the 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, as Figures 1-6 shown, 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 hub through the outer ring flange 2. By passing a bolt through the outer ring flange 2 and connecting it to the hub, the installation of the overall hub bearing assembly can be achieved.

[0030] A positioning shell 3 is fixedly provided on one side of the outer ring flange 2, and a fixing bolt 4 is connected to the internal thread of the positioning hole on one side of the outer ring flange 2, and a positioning column 5 is connected to the internal thread of one end of the fixing bolt 4, and a positioning block 11 is provided at one end of the positioning column 5. A positioning disk 8 is elastically and movably provided inside the positioning shell 3, and a rotating disk 7 is rotatably provided at one end of the positioning disk 8. When it is necessary to screw the fixing bolt 4 clockwise into the interior of the positioning shell 3, the fixing bolt 4 and the positioning column 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 prism-shaped, and the prism shape facilitates the limiting of the positioning block 11. At this time, the fixing bolt 4 continues to rotate, but the positioning column 5 will rotate synchronously and rotate out of the fixing bolt 4. At this time, the positioning column 5 will push the positioning disk 8 and the rotating disk 7 to move inward until the fixing bolt 4 rotates 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 plate 8 , a second spring 13 is provided inside the groove at one end of the positioning plate 8 , one end of the second spring 13 is connected to one end of the plug post 12 .

[0032] The outer wall of the positioning shell 3 is movably provided with a push-on self-locking mechanism 10, and the outer walls of the rotating disk 7 and the positioning disk 8 are provided with a fixing groove 15. The shape and size of the fixing groove 15 match the shape and size of the push-on self-locking mechanism 10. The push-on self-locking mechanism 10 in the initial state 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 column 5, which is convenient for the positioning column 5 to be turned out from the fixing bolt 4. When the fixing bolt 4 is screwed into place, the push-on self-locking mechanism 10 is pressed. The push-on self-locking mechanism 10 is a prior art, such as a ballpoint pen or a push-on self-locking electrical switch. The principle is that it is self-locking when pressed once and disconnected when pressed a second time. Therefore, pressing the push-on self-locking mechanism 10 at this time will release the push-on self-locking mechanism 10 from the self-locking state and pop it out. At this time, the positioning disk 8 and the rotating disk 7 are not restricted and 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 column 5 will drive the rotating disk 7 to rotate synchronously, and due to the action of the one-way ratchet 6, the fixing bolt 4 rotating in the opposite direction will rotate in the original position and will not rotate outward to disengage. At this time, it can play a corresponding anti-theft role, and 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 remove the fixing bolt 4, first press the pressing self-locking mechanism 10 to make it in the self-locking state. For example, when the pressing self-locking mechanism 10 does not correspond to the fixing groove 15, the fixing bolt 4 can be slowly rotated in the reverse direction until the pressing self-locking mechanism 10 can be inserted into the fixing groove 15. When the pressing self-locking mechanism 10 is in the self-locking state, at this time, rotate the fixing bolt 4 in the reverse direction, and the positioning disk 8 and the rotating disk 7 will limit the positioning column 5 and the positioning block 11. Therefore, the rotation of the fixing bolt 4 will cause the positioning column 5 to retract into the interior of the fixing bolt 4. At this time, the positioning disk 8 and the rotating disk 7 will move outward along with the fixing bolt 4 under the action of the first spring 9 until the rotating disk 7 is disengaged from the limit of the pressing self-locking mechanism 10. At this time, the positioning disk 8 is still under the limiting action of the pressing self-locking mechanism 10, and the rotation of the fixing bolt 4 will drive the rotating disk 7 to rotate along the positioning disk 8;

[0035] One end of the one-way ratchet 6 is provided with a slot 14, and the shape and size of the slot 14 are both matched with the shape and size of the plug post 12. At the same time, when the positioning disk 8 and the rotating disk 7 move outward along with the fixing bolt 4 under the action of the first spring 9, the plug post 12 is inserted into the slot 14 of the one-way ratchet 6 under the action of the second spring 13 to limit and fix the one-way ratchet 6. At this time, when the fixing bolt 4 is rotated in the reverse direction, it will disengage from the internal thread of the one-way ratchet 6 until the fixing bolt 4 is completely removed from the positioning shell 3, realizing the removal of the fixing bolt 4.

[0036] The ratchet teeth of the one-way ratchet 6 cooperate with the ratchet pawl, and the stroke range of the ratchet teeth is 10° - 20°. Since the stroke range of the ratchet teeth is small, the sound of the ratchet pawl knocking will be smaller during use. Non-maintenance personnel are not clear about the anti-theft method of this anti-theft structure, which further improves the anti-theft ability of this hub bearing assembly.

[0037] Although the embodiments of the present invention have been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not make creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A wheel hub bearing assembly, comprising a main bearing (1) and an outer ring flange (2), characterized in that: A positioning shell (3) is fixedly provided on one side of the outer ring flange (2); a fixing bolt (4) is connected to the internal thread of a positioning hole on one side of the outer ring flange (2); a positioning column (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 column (5); a positioning disk (8) is elastically and movably provided inside the positioning shell (3); a rotating disk (7) is rotatably provided at one end of the positioning disk (8); a plurality of plug columns (12) are elastically and movably provided at one end of the positioning disk (8); a one-way ratchet (6) is rotatably connected to the inner wall of the positioning shell (3); the inner wall of the one-way ratchet (6) is threadedly connected to the fixing bolt (4); and a press-type self-locking mechanism (10) is movably provided through the outer wall of the positioning shell (3).

2. A wheel 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 plate (8).

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

4. A wheel hub bearing assembly according to claim 1, characterized in that: A slot (14) is provided at one end of the one-way ratchet (6), and the shape and size of the slot (14) match the shape and size of the plug post (12).

5. The wheel hub bearing assembly according to claim 1, characterized in that: 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) match the shape and size of the pressing self-locking mechanism (10).

6. The wheel hub bearing assembly according to claim 1, characterized in that: The ratchet teeth of the one-way ratchet wheel (6) cooperate with the pawl, and the stroke range of the ratchet teeth is 10°-20°.

7. The wheel hub bearing assembly according to claim 1, characterized in that: The outer surface of one end of the positioning block (11) is prism-shaped.

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