Hub bearing with locking structure

Abstract

The utility model provides a hub bearing with a locking structure, which comprises an outer ring, an inner ring and a plurality of tapered rollers, a flange part is arranged on the inner ring, a first roller path is formed between the outer ring and the inner ring, the hub bearing also comprises a ferrule and a locking piece, the inner ring comprises a groove part and an abutting surface positioned on the inner side of the groove part, and the locking piece is positioned on the inner side of the groove part. The sleeve ring is arranged at the groove part in a sleeving manner and is matched with the abutting surface in an abutting manner, a second roller path symmetrical to the first roller path is formed between the sleeve ring and the outer ring, and the locking piece can be positioned at the tail end of the groove part and is matched with the sleeve ring in an abutting manner. Aiming at the defects in the prior art, the utility model provides a hub bearing with a locking structure, which can reduce the installation difficulty on the basis of ensuring the use effect.

Description

Technical Field

[0001] The utility model relates to the field of bearings, in particular to a hub bearing with a locking structure. Background Art

[0002] Bearings are important components used for the rotation support of mechanical bodies and are widely used in various fields of our lives and work. For this reason, bearings have also evolved into many types to adapt to different working environments. Among them, wheel hub bearings are very important key components in automobiles. Their main functions are to bear weight and provide precise guidance for the rotation of the wheel hub. Wheel hub bearings in the existing technology usually include an inner ring with a flange, an outer ring and a plurality of rollers. Due to the load-bearing capacity requirements, two rows of raceways for the plurality of rollers are formed between the inner ring and the outer ring. The load is provided by the two rows of rollers. However, the type of rollers often uses tapered rollers, and the two rows of tapered rollers require relatively inclined raceways, which makes installation more difficult. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a wheel hub bearing with a locking structure, which can reduce the difficulty of installation while ensuring the use effect.

[0004] To achieve the above-mentioned purpose, the utility model provides a wheel hub bearing with a locking structure, comprising an outer ring, an inner ring and a plurality of tapered rollers, wherein the inner ring is provided with a flange portion, a first raceway is formed between the outer ring and the inner ring, and a ferrule and a locking member are further provided. The inner ring comprises a groove portion and an abutment surface located inside the groove portion, the ferrule is sleeved on the groove portion and abuts with the abutment surface, a second raceway symmetrical to the first raceway is formed between the ferrule and the outer ring, and the locking member can be positioned at the end of the groove portion and abuts with the ferrule.

[0005] The advantages of adopting the above technical solution are: by setting the ring, the outer ring and the inner ring form a first raceway, and then the second raceway symmetrical to the first raceway is formed by the later-installed ring and the outer ring, so as to reduce the difficulty of assembling the bearing. On this basis, a locking piece that can be positioned is provided at the end of the groove, and the locking piece cooperates with the abutment surface of the groove to position the ring and ensure stability.

[0006] The present invention can be further configured as follows: a threaded portion is provided at the end of the groove portion, the locking piece is arranged in an annular shape, and the locking piece is sleeved on the threaded portion and forms a threaded fit therewith.

[0007] Through further configuration, a threaded connection portion is provided at the end of the groove portion, so that the locking piece is annular and can be sleeved on the end of the groove portion to form a threaded connection. The locking piece is installed by threading, which is convenient for adjustment and installation.

[0008] The utility model can be further configured as follows: a plurality of operating openings are provided on the locking member, the plurality of operating openings are circumferentially spaced apart on the outer peripheral wall of the locking member, and the operating openings are formed by depressions on the outer peripheral wall of the locking member.

[0009] By further setting, an operating port formed by a recess in the outer wall of the locking member is provided on the locking member, and an operator or a robotic arm can rotate the locking member through the operating port to adjust and install the locking member, thereby further facilitating installation.

[0010] The utility model can be further configured as follows: a screw hole and a plurality of fastening bolts are provided at the bottom surface of the locking member corresponding to the operation port, and the fastening bolts can pass through the screw hole and be tightened on the threaded portion.

[0011] By further setting, a screw hole and a tightening bolt are provided at the bottom surface of the locking member corresponding to the operating port, and the locking member is positioned by the tightening bolt passing through the screw hole and pressing against the threaded portion, so that the locking member is driven to rotate during the operation of the wheel hub bearing, resulting in the problem of loosening. In addition, the tightening bolt is set in the operating port, and the shape of the operating port can also be used to hide and shield the tightening bolt to avoid external influences on the tightening bolt.

[0012] The present invention can be further configured as follows: a first sealing ring is provided between one axial end of the outer ring and the flange portion, and a second sealing ring is provided between the other axial end of the outer ring and the ferrule.

[0013] Through further configuration, a first sealing ring is provided between one axial end of the outer ring and the flange portion, and a second sealing ring is provided between the other end of the outer ring and the ferrule. The two sealing rings cover the interior of the bearing, which, on the one hand, prevents external impurities from entering, and on the other hand, prevents internal grease from flowing out, thereby ensuring the stability and reliability of the hub bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0015] Figure 2 A schematic diagram of the internal structure of an embodiment of the present utility model;

[0016] Figure 3 For the embodiment of the utility model Figure 2 Enlarged view of part a;

[0017] Figure 4 This is a schematic structural diagram of a locking member according to an embodiment of the present utility model;

[0018] Among them: outer ring 1; inner ring 2; flange part 21; groove part 22; threaded part 23; tapered roller 3; first raceway 4; ring 5; locking piece 6; operation port 61; screw hole 62; fastening bolt 63; second raceway 7; first sealing ring 8; second sealing ring 9. DETAILED DESCRIPTION

[0019] The embodiment of the wheel hub bearing with locking structure of the utility model is as follows: Figure 1-4 As shown: it includes an outer ring 1, an inner ring 2 and several tapered rollers 3, the inner ring 2 is provided with a flange portion 21, a first raceway 4 is formed between the outer ring 1 and the inner ring 2, and also includes a ferrule 5 and a locking member 6. The inner ring 5 includes a groove portion 22 and an abutment surface 52 located on the inner side of the groove portion 22, the ferrule 5 is sleeved on the groove portion 22 and abuts against the abutment surface, a second raceway 7 symmetrical to the first raceway 4 is formed between the ferrule 5 and the outer ring 1, and the locking member 6 can be positioned at the end of the groove portion 22 and abuts against the ferrule 5.

[0020] A threaded portion 23 is provided at the end of the groove portion 22 . The locking member 6 is provided in an annular shape. The locking member 6 is sleeved on the threaded portion 23 and forms a threaded fit therewith.

[0021] The locking member 6 is provided with a plurality of operating openings 61 , which are arranged at intervals in the circumferential direction on the outer peripheral wall of the locking member 6 , and the operating openings 61 are formed by depressions in the outer peripheral wall of the locking member 6 .

[0022] The bottom surface of the locking member 6 corresponding to the operating opening 61 is provided with a screw hole 62 and a plurality of fastening bolts 63 . The fastening bolts 63 can pass through the screw hole 62 and press against the threaded portion 23 .

[0023] A first sealing ring 8 is provided between one axial end of the outer ring 1 and the flange portion 21 , and a second sealing ring 9 is provided between the other axial end of the outer ring 1 and the ferrule 5 .

[0024] The above example is only one preferred specific example of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A wheel hub bearing with a locking structure, comprising an outer ring, an inner ring, and a plurality of tapered rollers, wherein the inner ring is provided with a flange portion, and a first raceway is formed between the outer ring and the inner ring, characterized in that: It also includes a ring and a locking piece. The inner ring includes a groove and an abutment surface located inside the groove. The ring is mounted on the groove and abuts against the abutment surface. A second raceway symmetrical to the first raceway is formed between the ring and the outer ring. The locking piece can be positioned at the end of the groove and abuts against the ring.

2. The wheel hub bearing with a locking structure according to claim 1, characterized in that: A threaded connection portion is provided at the end of the groove portion, and the locking piece is arranged in an annular shape. The locking piece is sleeved on the threaded connection portion and forms a threaded connection therewith.

3. The wheel hub bearing with a locking structure according to claim 2, characterized in that: The locking member is provided with a plurality of operating openings, which are arranged at intervals in the circumferential direction on the outer peripheral wall of the locking member, and the operating openings are formed by depressions in the outer peripheral wall of the locking member.

4. The wheel hub bearing with a locking structure according to claim 2 or 3, characterized in that: The bottom surface of the locking member corresponding to the operation port is provided with a screw hole and a plurality of fastening bolts, and the fastening bolts can pass through the screw hole and be tightened on the threaded portion.

5. The wheel hub bearing with a locking structure according to claim 1, 2 or 3, characterized in that: A first sealing ring is provided between one axial end of the outer ring and the flange portion, and a second sealing ring is provided between the other axial end of the outer ring and the ferrule.

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