CN213451358U

CN213451358U - Ball retainer

Info

Publication number: CN213451358U
Application number: CN202022018119.5U
Authority: CN
Inventors: 洪斌
Original assignee: Anhui Pifu Bearing Co ltd; Wuhu Renben Automotive Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Anhui Pifu Bearing Co ltd; Wuhu Renben Automotive Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-06-15
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a ball holder, including the holder body, the holder body is formed with the concatenation portion that is used for holder seat and holder lid to splice between the pocket hole, concatenation portion includes first concatenation halfbody and second concatenation halfbody, first concatenation halfbody is provided with the inserting groove in the concatenation face, the position that the concatenation face of second concatenation halfbody corresponds the inserting groove is provided with and is used for inserting the grafting piece of inserting groove, first concatenation halfbody is provided with the first through-hole with the inserting groove intercommunication along the axial, second concatenation halfbody is provided with along the axial and runs through the inserting piece is and in the second through-hole that first through-hole aligns, holder seat and holder lid are through the nail income first through-hole with rivet in the second through-hole forms the concatenation fixedly. The utility model provides a simple structure, simple to operate does not receive the rivet machining precision to influence, effectively improves retainer seat and retainer lid concatenation intensity, improves bearing life's ball holder.

Description

Ball retainer

Technical Field

The utility model belongs to the technical field of the bearing holder, especially, ball holder.

Background

Traditional ball retainer is in order to can the easy to assemble ball, the opening has been seted up in one side of retainer pocket, it is lighter to lead to the more opposite side weight in one side of retainer, the bearing is at high-speed moving in-process, receive the effect of centrifugal force and can make the retainer be partial to heavy one side, long-time the use can arouse the retainer pocket to take place to warp, the operation of ball in the retainer can be unstable, cause the bearing vibration increase, lead to the noise increase, and it is serious to make the bearing generate heat, influence life. Therefore, in order to enable the balls to run more stably in the retainer, at present, the conventional retainer is replaced by the common assembly type retainer, the retainer seat and the retainer cover are riveted into a whole through the rivet, so that the retainer pocket is kept coherent and is not influenced by the opening, and the steel balls can run more stably in the retainer. However, the retainer seat and the retainer cover are spliced in a rivet mode, the retainer is connected at the splicing position only through riveting of the rivet and is influenced by the machining precision of the rivet and the machining precision of the riveting hole, certain radial deviation exists at the splicing position of the retainer seat and the retainer cover, staggered radial force can be formed at the splicing surface of the retainer seat and the retainer cover, the staggered radial force can directly act on the rivet, the rivet can be deformed or cracked after long-time use, and the retainer is damaged.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a simple structure, simple to operate does not receive the rivet machining precision influence, effectively improves retainer seat and retainer lid concatenation intensity, improves bearing life's ball holder.

In order to realize the purpose, the utility model discloses a technical scheme is: a ball retainer comprises a retainer body, wherein a plurality of pockets are uniformly distributed on the retainer body along the circumferential direction of the retainer body, the retainer body and the pockets thereof are formed by axially splicing a retainer seat and a retainer cover, a splicing part used for splicing the retainer seat and the retainer cover is formed between the pockets of the retainer body, the splicing part comprises a first splicing half body arranged on the retainer seat and a second splicing half body arranged on the retainer cover, an inserting groove is formed in the splicing surface of the first splicing half body, an inserting block used for being inserted into the inserting groove is arranged at the position, corresponding to the inserting groove, of the splicing surface of the second splicing half body, a first through hole communicated with the inserting groove is axially formed in the first splicing half body, a second through hole penetrating through the inserting block and aligned with the first through hole is axially formed in the second splicing half body, and the retainer seat and the retainer cover form a first through hole and a rivet inserted into the first through hole to form a second through hole And (5) splicing and fixing.

Adopt above-mentioned scheme, at first, the holder body is formed by the concatenation of holder seat and holder lid through first concatenation halfbody and second concatenation halfbody, guarantee that the operation of ball in the holder is more steady, set up inserting groove and grafting piece on first concatenation halfbody and second concatenation halfbody respectively, and make the rivet run through in inserting groove and inserting piece, inserting groove and inserting piece peg graft and can improve the radial support intensity of holder seat and holder lid concatenation department, thereby radial ascending effort does not directly act on the rivet, reduce the condition emergence of rivet deformation, and peg graft through inserting groove and inserting groove earlier, can also improve the precision of aliging between first through-hole and the second through-hole, make things convenient for the rivet to insert and establish, be convenient for the follow-up riveting installation of rivet.

As a further setting of the utility model, the terminal surface of inserted block and inserting groove diapire butt is provided with the welding muscle along second through-hole week circumference, the welding muscle passes through ultrasonic bonding and forms welded fastening with the inserting groove diapire.

By adopting the scheme, the welding advantages of ultrasonic welding are utilized, the splicing strength is improved, the first splicing half body and the second splicing half body are integrally formed through welding, the integrity of the retainer body is improved, the overall strength is improved, and the processing is simple.

As a further setting of the utility model, the inserting groove diapire encircles along first through-hole circumference and is provided with the welding annular that can supply the welding muscle melting to imbed.

By adopting the scheme, in the ultrasonic welding process, one of the splicing half bodies needs to be pressurized, and the connection strength formed after welding can be improved through the connection of the welding ribs and the welding ring grooves.

As a further setting of the utility model, the axial cross-section of the welding ring groove is of an inverted T shape.

By adopting the scheme, the reverse-T-shaped welding ring groove can be filled under the action of pressure after the welding rib is melted, and after the welding rib is welded, the reverse-T-shaped welding ring groove can be connected with the welding rib and simultaneously form clamping connection, so that the connection strength is further improved.

As a further arrangement of the present invention, the outer sleeve of the rivet is provided with a sleeve which can pass through the first through hole and the second through hole.

Adopt above-mentioned scheme, further protect the rivet, prevent that the rivet warp.

As the utility model discloses a further setting, first concatenation halfbody and second concatenation halfbody are formed with the embedded recess of riveting head that is used for forming after the rivet riveting respectively, be provided with spring washer between riveting head and the recess.

By adopting the scheme, the riveting head is embedded in the groove, so that the external structure of the retainer is cleaner and tidier, the subsequent assembly can be facilitated, the elastic washer can compensate the tensile deformation of the rivet after long-time use,

the present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic exterior view of an embodiment of the present invention;

FIG. 2 is a schematic view of an embodiment of the holder base of the present invention;

FIG. 3 is a schematic view of the holder cover according to an embodiment of the present invention;

FIG. 4 is a sectional view of the holder base and the holder cover when the embodiment of the present invention is not welded;

FIG. 5 is a sectional view of the welded holder base and holder cover according to the embodiment of the present invention;

FIG. 6 is an enlarged view of portion A of FIG. 4;

fig. 7 is an enlarged view of portion B of fig. 5.

Detailed Description

The specific embodiment of the utility model is shown in fig. 1-7, a ball holder, including holder body 1, holder body 1 adopts the polyimide material, and this material has certain self-lubricating function, and this material also is applicable to ultrasonic bonding very much simultaneously. The retainer body 1 is uniformly provided with a plurality of pockets 11 along the circumferential direction thereof, the pockets 11 are closed, the retainer body 1 and the pockets 11 thereof are formed by axially splicing a retainer seat 12 and a retainer cover 13, a splicing part 14 for splicing the retainer seat 12 and the retainer cover 13 is formed between the pockets 11 of the retainer body 1, the splicing part 14 comprises a first splicing half body 121 arranged on the retainer seat 12 and a second splicing half body 131 arranged on the retainer cover 13, the splicing surface of the first splicing half body 121 is provided with an insertion groove 122, the splicing surface of the second splicing half body 131 corresponding to the insertion groove 122 is provided with an insertion block 132 for being inserted into the insertion groove 122, the first splicing half body 121 is axially provided with a first through hole 123 communicated with the insertion groove 122, the second splicing half body 131 is axially provided with a second through hole 133 which penetrates through the insertion block 132 and is aligned with the first through hole 123, the holder base 12 and the holder cover 13 are fixed by rivets 2 driven into the first through-holes 123 and the second through-holes 133.

In this embodiment, a welding rib 1321 is circumferentially disposed along the second through hole 133 at an end surface of the plug block 132 abutting against the bottom wall of the plug groove 122, and the welding rib 1321 is welded and fixed to the bottom wall of the plug groove 122 by ultrasonic welding.

In this embodiment, the bottom wall of the insertion groove 122 is circumferentially provided with a welding ring groove 1221, into which the welding rib 1321 is melted and embedded, along the first through hole 123, and an axial cross section of the welding ring groove 1221 is in a shape of "t". The welding rib 1321 is melted and then can be filled into the reverse-T-shaped welding ring groove 1221 under the action of pressure, and after welding, the reverse-T-shaped welding ring groove 1221 can be connected with the welding rib 1321 and simultaneously form clamping connection, so that the connection strength is further improved.

In this embodiment, the rivet 2 is externally sleeved with a sleeve 3 that can pass through the first and second through

holes

123 and 133.

In this embodiment, the first half body 121 and the second half body 131 are respectively formed with a groove (1211, 1311) for fitting the rivet head 21 formed after the rivet 2 is riveted, and the elastic washer 4 is disposed between the rivet head 21 and the groove (1211, 1311).

The utility model discloses do not confine the above-mentioned embodiment to, the general technical personnel in this field can adopt other multiple embodiments to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope.

Claims

1. A ball cage characterized by: comprises a retainer body, a plurality of pockets are uniformly distributed on the retainer body along the circumferential direction of the retainer body, the retainer body and the pockets thereof are formed by splicing a retainer seat and a retainer cover along the axial direction, the retainer body is provided with a splicing part for splicing the retainer seat and the retainer cover between the pockets, the splice comprises a first splice half body disposed on the holder base and a second splice half body disposed on the holder cover, the splicing surface of the first splicing half body is provided with an inserting groove, the splicing surface of the second splicing half body is provided with an inserting block for inserting the inserting groove at a position corresponding to the inserting groove, the first half splicing body is axially provided with a first through hole communicated with the insertion groove, the second half splicing body is axially provided with a second through hole penetrating through the insertion block and aligned with the first through hole, the retainer seat and the retainer cover are spliced and fixed through rivets nailed into the first through hole and the second through hole.

2. The ball cage of claim 1, wherein: the end face of the butt joint of the insertion block and the bottom wall of the insertion groove is circumferentially provided with a welding rib along the second through hole, and the welding rib is welded and fixed with the bottom wall of the insertion groove through ultrasonic welding.

3. The ball cage of claim 2 wherein: the bottom wall of the insertion groove is circumferentially provided with a welding ring groove for the welding rib to be embedded in a melting mode along the first through hole.

4. The ball cage of claim 3 wherein: the axial section of the welding ring groove is in an inverted T shape.

5. The ball cage of claim 1, wherein: the outer sleeve of the rivet is sleeved with a sleeve which can penetrate through the first through hole and the second through hole.

6. The ball cage of claim 1, wherein: the first splicing half body and the second splicing half body are respectively provided with a groove which is used for embedding a riveting head formed after riveting of a rivet, and an elastic gasket is arranged between the riveting head and the groove.