Split type bicycle bowl group bearing

Abstract

The utility model discloses a split bicycle bowl group bearing which comprises a bearing inner ring, a bearing outer ring and a plurality of steel balls, a retainer and a dustproof sheet are arranged between the bearing inner ring and the bearing outer ring, a plurality of steel ball grooves are formed in the retainer, and the steel balls are installed in the steel ball grooves in a one-to-one correspondence mode. The bearing inner ring, the bearing outer ring, the retainer and the dustproof sheet are respectively composed of two semi-circle oppositely-opened rings, and the bearing inner ring and the bearing outer ring are provided with fractures at the butt joint of the two semi-circle rings; a ball holding assembly is arranged between the retainer and the dustproof sheet and is used for keeping the ball holding characteristic of the retainer; the bicycle bowl group bearing replacement device has the advantage of solving the problem of wire harness reassembly in the bicycle bowl group bearing replacement process on the premise of ensuring the bearing capacity.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field especially relates to a split type bicycle bowl group bearing. BACKGROUND

[0002] With the continuous development of the demand of riding, more and more high-performance bicycles begin to adopt bowl group wiring design, this design not only makes the appearance of the frame more simple, and greatly simplifies the layout of the line, because the opening of bowl group wiring is larger, wiring and replacing line become more convenient, at the same time, the design of bowl group wiring reduces the need of opening hole in the key area such as the down tube or head tube of the bicycle, thereby retaining the structural strength of the frame, optimizing the overall frame design, but bowl group wiring design also faces some problems, especially when replacing bowl group bearing, the wire harness such as brake oil pipe and electric variable wire / hand variable wire must be disassembled, which increases the difficulty of maintenance, the whole circle bearing commonly used in the market is more complex to replace and maintain. SUMMARY

[0003] The utility model solves the technical problem that a split type bicycle bowl group bearing is provided, which solves the problem of wire harness reinstallation during the replacement process of the bicycle bowl group bearing under the premise of ensuring the bearing capacity.

[0004] The technical scheme adopted by the utility model to solve the above technical problem is as follows: a split type bicycle bowl group bearing, which comprises a bearing inner ring, a bearing outer ring and a plurality of steel balls, a retainer and a dustproof sheet are arranged between the bearing inner ring and the bearing outer ring, a plurality of steel ball grooves are arranged on the retainer, the steel balls are one-to-one correspondingly installed in the steel ball grooves, the bearing inner ring, the bearing outer ring, the retainer and the dustproof sheet are all composed of two split half circular rings, and a fracture opening is arranged at the butt joint of the two half circular rings; a ball holding assembly is arranged between the retainer and the dustproof sheet, and the ball holding assembly is used for maintaining the ball holding property of the retainer.

[0005] Further, the ball holding assembly comprises a ball holding spike and a ball holding hole, the ball holding spike is integrally arranged on the dustproof sheet, and the ball holding hole is arranged on the retainer; when the ball holding spike is loaded into the ball holding hole, the retainer and the dustproof sheet are fixed.

[0006] Further, the fracture opening arranged on the bearing outer ring is a first fracture opening, the first fracture opening is a V-shaped notch and is located on the outer surface of the diameter of the bearing outer ring.

[0007] Further, the fracture opening arranged on the bearing inner ring is a second fracture opening, the second fracture opening is a V-shaped notch and is located on the inner surface of the diameter of the bearing inner ring.

[0008] Compared with the prior art, the bearing adopting the split design can avoid the problem of reassembling the wire harness during replacement and maintenance of the bicycle bowl set bearing; the ball holding assembly arranged between the retainer and the dustproof sheet enables the split retainer to still hold the balls of the whole bearing, thereby ensuring stable operation of the balls in the retainer; the fracture opening arranged on the bearing outer ring and the bearing inner ring facilitates dismounting the old bearing by applying pressure from the fracture opening. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is a perspective view of the utility model;

[0010] Fig. 2 It is a sectional view of the utility model;

[0011] Fig. 3 It is an explosion view of the utility model. DETAILED DESCRIPTION

[0012] The utility model will be described in further detail below in combination with the embodiment of the drawings.

[0013] As Figs. 1-3 shown, a split bicycle bowl set bearing, comprising a bearing inner ring 1, a bearing outer ring 2 and a plurality of steel balls 3, a retainer 4 and a dustproof sheet 5 are arranged between the bearing inner ring 1 and the bearing outer ring 2, a plurality of steel ball grooves are arranged on the retainer 4, and the steel balls 3 are one-to-one correspondingly installed in the steel ball grooves; the bearing inner ring 1, the bearing outer ring 2, the retainer 4 and the dustproof sheet 5 are all composed of two split semicircular rings, the bearing inner ring 1 is provided with a second fracture opening 11 at the butt joint of the two semicircular rings, the bearing outer ring 2 is provided with a first fracture opening 21 at the butt joint of the two semicircular rings, the first fracture opening 21 is a V-shaped notch and is located at both ends of the diameter of the bearing outer ring 2, the second fracture opening 11 is a V-shaped notch and is located at both ends of the diameter of the bearing inner ring 1, the first fracture opening 21 and the second fracture opening 11 facilitate the maintenance personnel to exert pressure from the place to dismount the old bearing, thereby avoiding the problem of reassembling the wire harness; the retainer 4 and the dustproof sheet 5 are provided with a ball holding assembly, the ball holding assembly is used for keeping the ball holding property of the retainer 4, the ball holding assembly comprises a ball holding pin 51 and a ball holding hole 41, the ball holding pin 51 is integrally arranged on the dustproof sheet 5, the ball holding hole 41 is arranged on the retainer 4, when the ball holding pin 51 is mounted in the ball holding hole 41, the retainer 4 and the dustproof sheet 5 are fixed, thereby ensuring normal operation between the bearing inner ring 1, the steel balls 3 and the retainer 4.

[0014] During installation, the bearing bowl is arranged at the top of the head tube of the bicycle, the bearing is installed into the bearing bowl, the outer ring 2 of the bearing is tightly matched with the inner wall of the bearing bowl, the outer diameter of the bowl set compression ring is tightly matched with the inner ring 1 of the bearing, the inner diameter of the bowl set compression ring is tightly matched with the front fork rudder tube of the bicycle, the bowl set cover is installed on the upper section of the outer ring 2 of the bearing and the inner ring 1 of the bearing, and the bearing is pressed downwardly; during disassembly, the bowl set cover is loosened, and pressure is applied at the first fracture opening 21 and the second fracture opening 11, so that the bearing is separated from the bearing bowl.

[0015] The protection scope of the utility model includes but is not limited to the above implementation, the protection scope of the utility model is subject to the claims, any replacement, deformation, improvement of the technical personnel in the art to the present technology easily thought of falls into the protection scope of the utility model.

Claims

1. A split bicycle cup and cone bearing comprising a bearing inner race, a bearing outer race, and a plurality of steel balls, a retainer and a dust shield disposed between the bearing inner race and the bearing outer race, the retainer having a plurality of ball grooves formed therein, the steel balls being one-to-one corresponding mounted in the ball grooves, characterized in that, The bearing inner ring, the bearing outer ring, the retainer and the dustproof sheet are all composed of two split semicircular rings, the bearing inner ring and the bearing outer ring are provided with a fracture at the joint of the two semicircular rings; a ball holding assembly is arranged between the retainer and the dustproof sheet, and the ball holding assembly is used for keeping the ball holding property of the retainer.

2. A split bicycle cup and cone bearing as defined in claim 1 wherein, The ball holding assembly comprises a ball holding spike and a ball holding hole, the ball holding spike is integrally arranged on the dustproof sheet, and the ball holding hole is arranged on the retainer, when the ball holding spike is arranged in the ball holding hole, the retainer and the dustproof sheet are fixed.

3. A split bicycle cup and cone bearing as defined in claim 1 wherein, The fracture arranged on the bearing outer ring is a first fracture, the first fracture is a V-shaped notch and is located on the outer surface of the two ends of the diameter of the bearing outer ring.

4. A split bicycle cup and cone bearing as defined in claim 1 wherein, The fracture arranged on the bearing inner ring is a second fracture, the second fracture is a V-shaped notch and is located on the inner surface of the two ends of the diameter of the bearing inner ring.

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