CN218844868U

CN218844868U - Plastic retainer part and plastic retainer

Info

Publication number: CN218844868U
Application number: CN202223486009.7U
Authority: CN
Inventors: 谷晓光; 冯伟龙; 曹腾
Original assignee: Suzhou Bearing Factory Co ltd
Current assignee: Suzhou Bearing Factory Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-04-11
Anticipated expiration: 2032-12-23

Abstract

The utility model discloses a plastic retainer part and a plastic retainer, wherein the plastic retainer part comprises two annular ring beams which are coaxially arranged and a plurality of window beams which are connected between the two annular ring beams, and a window for installing a roller is formed between the two adjacent window beams; and a first welding connection structure is arranged on the welding surface of the annular ring beam, and a second welding connection structure is arranged on the welding surface of the window beam. The utility model provides a plastics holder part and plastics holder can improve the bearing performance and the intensity of holder.

Description

Plastic retainer part and plastic retainer

Technical Field

The utility model relates to a bearing technical field, in particular to plastics holder part and plastics holder.

Background

The plastic welding retainer for the thrust cylindrical roller bearing is conventionally designed into an integral type, the integral type design has certain advantages when the bearing requirement on the smaller diameter of a roller is not high, the design mold of the integral type retainer is simple in structure, and the bearing assembling efficiency is high; however, when the system needs a higher load and the diameter of the rolling element is larger (generally, the diameter is larger than 7 mm), because the system is limited by the influence of the strength of the retainer, the integrated retainer cannot be used for placing more rollers, and meanwhile, the higher height cannot be designed to compensate the strength, because the designed retainer is too high, the rollers cannot be assembled, and therefore, the conventional retainer design cannot meet the requirements in the application occasions requiring high bearing performance and high strength of the retainer.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a plastics holder part and plastics holder improves the bearing performance of bearing.

Based on the above problem, the utility model provides an one of the technical scheme is:

a plastic retainer part comprises two annular ring beams which are coaxially arranged and a plurality of window beams connected between the two annular ring beams, wherein a window for mounting a roller is formed between every two adjacent window beams; and a first welding connection structure is arranged on the welding surface of the annular ring beam, and a second welding connection structure is arranged on the welding surface of the window beam.

In some embodiments, the first and second welded connections are disposed on two radial sides of the annular ring beam.

In some embodiments, the first welded connection comprises at least one arcuate bead disposed on the annular ring beam and the second welded connection comprises at least one connection projection disposed on the window beam.

In some of these embodiments, the arc-shaped connecting rib has a central angle of less than 180 degrees.

In some embodiments, the window beam is provided with two connecting protrusions which are arranged at intervals along the radial direction of the annular ring beam.

In some embodiments, one side of the inner wall of the window, which is close to the welding surface, is provided with a glue overflow groove.

In some of the embodiments, a side of the inner wall of the window facing away from the welding surface is provided with a lubricating oil groove.

In some embodiments, two of the window beams are respectively provided with welding positioning holes, and the two welding positioning holes are respectively located at two radial sides of the annular ring beam.

Based on the above problem, the utility model provides a second technical scheme:

a plastic cage comprising a plastic cage component as claimed in any preceding claim.

In some embodiments, the plastic retainer parts are welded and fixed to each other and coaxially arranged, wherein the first welding connection structure of one plastic retainer part is attached to the welding plane of the annular ring beam of the other plastic retainer part, and the second welding structure of one plastic retainer part is attached to the welding plane of the window beam of the other plastic retainer part.

Compared with the prior art, the utility model has the advantages that:

1. compared with a conventional structure, the retainer can be provided with more rollers, the bearing performance is greatly improved, the height design space of the retainer is large, the size of the retainer is even close to the diameter of the rollers, and the strength of the retainer is greatly increased;

2. two same plastic retainer parts are welded with each other to obtain a retainer product, so that the development cost, time and cost of parts are reduced, the process is easier to control, and the management cost is obviously reduced;

3. the ring beam and the window beam are respectively provided with a welding connection structure, so that the strength of the retainer window beam is ensured, and the service life of a bearing is not influenced under a larger impact working condition;

4. the two welding positioning holes are arranged, so that the two plastic retainer parts can be conveniently positioned during welding, the position deviation between the two plastic retainer parts during welding is avoided, and the welding precision is improved;

5. after the two plastic retainer parts are mutually welded, the glue overflow groove is formed in the window, so that the welding quality is improved, and the problem that the bearing cannot be assembled due to glue overflow can be avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a plastic cage component of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at I;

fig. 3 is a schematic structural diagram of an embodiment of a plastic retainer according to the present invention;

fig. 4 is a second schematic structural view of an embodiment of a plastic retainer of the present invention;

FIG. 5 isbase:Sub>A schematic sectional view taken along line A-A in FIG. 4;

wherein:

100. a plastic cage component; 101. an annular ring beam; 102. a window beam; 103. a window; 103a, an overflow glue groove; 103b, a lubricating oil groove; 104. arc-shaped connecting ribs; 105. a connecting projection; 106. welding a positioning hole;

200. a roller.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.

Referring to fig. 1 and 2, for an embodiment of the present invention, there is provided a plastic cage component 100, which includes two annular ring beams 101 coaxially arranged and a plurality of window beams 102 connected between the two annular ring beams 101, wherein the plurality of window beams 102 are uniformly spaced along the circumferential direction of the annular ring beams 101, and a window 103 for installing a roller 200 is formed between two adjacent window beams 102. The first welding connection structure is arranged on the welding surface of the annular ring beam 101, and the second welding connection structure is arranged on the welding surface of the window beam 102. During assembly, the two plastic retainer parts 100 are attached to each other and then welded into a retainer product, and the welding strength can be improved by arranging the welding connection structure.

Specifically, the first welding connection structure and the second welding connection structure are respectively arranged on two radial sides of the annular ring beam 101, and when two plastic retainer components 100 are welded to each other, the first welding connection structure and the second welding connection structure can respectively perform welding reinforcement on the two radial sides of the retainer.

The first welding connection mechanism comprises at least one arc-shaped connecting rib 104 arranged on the annular ring beam 101, the second welding structure comprises at least one connecting protrusion 105 arranged on the window beam 102, in this example, two arc-shaped ring beams 101 are respectively provided with one arc-shaped connecting rib 104, and the central angle of the arc-shaped connecting rib 104 is smaller than 180 degrees. Two connecting protrusions 105 which are arranged at intervals along the radial direction of the annular ring beam 101 are respectively arranged on the plurality of window beams 102 on the other radial side of the annular ring beam 101, and the connecting protrusions 105 can be spherical protrusions.

During assembly and welding, the arc-shaped connecting ribs 104 of one plastic retainer part 100 are attached to the welding plane of the annular ring beam 101 of the other plastic retainer part 100, so that effective welding of the two plastic retainer parts 100 is realized, and the connecting protrusions 105 of one plastic retainer part 100 are attached to the welding plane of the window beam 102 of the other plastic retainer part 100, so that the impact strength of the window beam 102 is improved, and the integral strength of a plastic retainer product is ensured.

In order to avoid the problem that the bearing cannot be assembled due to glue overflow, a glue overflow groove 103a (shown in fig. 5) is formed in one side, close to the welding surface, of the inner wall of the window 103, and after the two plastic retainer parts 100 are welded to each other, the glue overflow grooves 103a of the two plastic retainer parts 100 are spliced with each other, so that excessive glue overflowing during welding stays in the glue overflow groove 103a, does not protrude out of the outer surface of the retainer, and the reliability of bearing assembly is guaranteed.

In order to facilitate lubrication and heat dissipation, a lubricating oil groove 103b is formed in one side, away from the welding surface, of the inner wall of the window 103 so as to improve the lubricating performance of the bearing, and specifically, the lubricating oil grooves 103b are formed in two radial sides, located on the roller 200, of the window 103 respectively.

In order to facilitate mutual welding between the plastic retainer parts 100, two window beams 102 are provided with welding positioning holes 106, and the two welding positioning holes 106 are respectively positioned at two radial sides of the annular ring beam 101, namely, the welding positioning holes 106 are arranged on the window beam 102 provided with the connecting protrusion 105 and on any one window beam 102 between the two arc-shaped connecting ribs 104, so that the assembling directions of the two plastic retainer parts 100 can be conveniently identified during assembling, and the precision of the welding position between the two plastic retainer parts 100 can be ensured.

In this example, a plastic retainer is also disclosed, and referring to fig. 3 to 5, the plastic retainer comprises two plastic retainer parts 100 which are welded and fixed with each other and are coaxially arranged, wherein a first welding connection structure of one plastic retainer part 100 is attached to a welding plane of an annular ring beam 101 of the other plastic retainer part 100, a second welding structure of one plastic retainer part 100 is attached to a welding plane of a window beam 102 of the other plastic retainer part 100, welding positioning holes 106 of the upper and lower plastic retainer parts 100 are overlapped and positioned, and then ultrasonic welding is adopted to weld and fix the two plastic retainer parts 100 into a whole.

In conclusion, the plastic retainer adopts two plastic retainer parts which are mutually welded into a whole, so that more rollers can be arranged, and the bearing performance is improved; the two plastic retainer parts are mutually assembled and welded, so that the height of the retainer can be improved, and the strength of the retainer can be improved; a glue overflow groove is formed in the window close to the welding surface, so that redundant glue can be conveniently stored, and the situation that the glue overflows to the surface of the retainer to influence the assembly of the bearing is avoided; a lubricating oil groove is formed in the window and deviates from the welding surface, so that the lubricating performance of the bearing can be improved.

The above-mentioned embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention cannot be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A plastic cage component characterized by: the roller mounting structure comprises two annular ring beams which are coaxially arranged and a plurality of window beams connected between the two annular ring beams, wherein a window for mounting a roller is formed between every two adjacent window beams; and a first welding connection structure is arranged on the welding surface of the annular ring beam, and a second welding connection structure is arranged on the welding surface of the window beam.

2. The plastic cage component of claim 1 wherein: the first welding connection structure and the second welding connection structure are respectively arranged on two radial sides of the annular ring beam.

3. A plastic cage component as claimed in claim 2, wherein: the first welding connection structure comprises at least one arc-shaped connection rib arranged on the annular ring beam, and the second welding connection structure comprises at least one connection protrusion arranged on the window beam.

4. A plastic cage component as claimed in claim 3, wherein: the central angle of the arc-shaped connecting rib is less than 180 degrees.

5. A plastic cage component as claimed in claim 3, wherein: and the window beam is provided with two connecting bulges which are arranged along the annular ring beam at intervals in the radial direction.

6. The plastic cage component of claim 1 wherein: and one side of the inner wall of the window, which is close to the welding surface, is provided with a glue overflow groove.

7. The plastic cage component of claim 6 wherein: and a lubricating oil groove is formed in one side, deviating from the welding surface, of the inner wall of the window.

8. The plastic cage component of claim 1 wherein: and the two window beams are respectively provided with welding positioning holes which are respectively positioned at the two radial sides of the annular ring beam.

9. A plastic cage, characterized by: comprising a plastic cage component according to any one of claims 1 to 8.

10. The plastic cage of claim 9, wherein: the plastic retainer comprises two plastic retainer parts which are mutually welded and fixed and are coaxially arranged, wherein a first welding connection structure of one plastic retainer part is attached to a welding plane of an annular ring beam of the other plastic retainer part, and a second welding structure of one plastic retainer part is attached to a welding plane of a window beam of the other plastic retainer part.