CN216618260U

CN216618260U - Non-chip long-life roller bearing

Info

Publication number: CN216618260U
Application number: CN202122484367.3U
Authority: CN
Inventors: 时飞
Original assignee: Jiangsu Wanda Special Bearing Co Ltd
Current assignee: Jiangsu Wanda Special Bearing Co Ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-05-27
Anticipated expiration: 2031-10-15

Abstract

The utility model relates to a chip-free long-life roller bearing, which comprises an outer ring, an inner ring, rollers, retainers and check rings, wherein rotating shafts are respectively designed at two ends of each roller; the inner raceway is designed into an annular groove shape, the outer raceway is designed into an annular step, the retainer ring is arranged on the outer side of the inner ring and is retained on the end side of the annular step to enable the annular step to form the annular groove shape, and the outer diameter of the retainer ring is the same as that of the inner ring; grease filling spaces are designed among the rollers; the retainer is a plastic retainer. The plastic cage has the advantages that the design is simple, the use is convenient, the plastic cage is adopted as the cage, the structure of the cage is adjusted, the rotating shafts are designed at the two ends of the rollers to be matched, the gap between the rollers is ensured to be filled with grease for lubrication, and the service life is prolonged.

Description

Non-chip long-life roller bearing

Technical Field

The utility model relates to the field of bearings, in particular to a chip-free long-life roller bearing.

Background

Roller bearings are one type of rolling bearings, and are one of the components widely used in modern machinery. It relies on rolling contact between the primary elements to support the rotating parts. Roller bearings are now mostly standardized. The roller bearing has the advantages of small moment required by starting, high rotation precision, convenience in selection and the like.

The prior roller bearing retainer is an iron retainer, and the iron retainer rubs with a roller, an inner ring and an outer ring to generate scraps in the using process, so that the service life of the bearing is shortened.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a chip-free long-life roller bearing which is simple in design, convenient to use and capable of prolonging the service life of the bearing.

The technical scheme of the utility model is as follows:

a kind of non-chip long-life roller bearing, it includes outer lane, inner race, roller, cage, retaining ring, the inboard middle design of outer lane has inner raceways, the outer raceway of inner lane, the inner lane locates at the inboard of outer lane and installs several rollers between outer lane and inner lane, several rollers roll and locate in inner raceway and outer raceway, there are spindles at both ends of the said roller respectively, the said cage design has two left and right sides, two left and right cages are the annular flaky cage respectively, two cages have several shaft holes symmetrically, the spindle at both ends of the roller corresponds to the shaft hole on the cage of the two sides rotatably to insert separately; the inner raceway is designed into an annular groove shape, the outer raceway is designed into an annular step, the retainer ring is arranged on the outer side of the inner ring and is retained on the end side of the annular step to enable the annular step to form the annular groove shape, and the outer diameter of the retainer ring is the same as that of the inner ring; grease filling spaces are designed among the rollers; the retainer is a plastic retainer.

The roller is a cylindrical roller.

A circle of the outer end part of the rotating shaft is provided with an annular protrusion, a circle of the end part of the annular protrusion is provided with an annular tapered chamfer, a circle of the outer end part of the inner side of the shaft hole of the retainer is provided with an annular clamping table, a circle of the inner end part of the inner side of the shaft hole is provided with an annular tapered chamfer, the rotating shaft is inserted into the shaft hole, and the annular protrusion is clamped in the annular clamping table.

The plastic retainer is one of a glass fiber reinforced polyamide 66 retainer, a glass fiber reinforced polyamide 46 retainer and a polyamide 46 retainer.

The utility model has the advantages of simple design and convenient use, replaces the prior iron retainer with the plastic retainer, adjusts the structure of the retainer, and ensures that the two ends of the rollers are matched by the design of the rotating shafts, thereby ensuring that gaps exist between the rollers for filling grease and lubricating, and further prolonging the service life of the bearing.

Drawings

FIG. 1 is a schematic of the present invention.

Fig. 2 is a side view of fig. 1.

Fig. 3 is a schematic view of a roller of the present invention.

Fig. 4 is a schematic view of the cage of the present invention.

Fig. 5 is a cross-sectional view at AA in fig. 4.

Fig. 6 is a dynamic schematic of the roller and cage assembly of the present invention.

Detailed Description

Referring to the attached drawings 1-6, a debris-free long-life roller bearing comprises an outer ring 1, an inner ring 2, rollers 3, retainers 4 and retainer rings 5, wherein an inner rolling path is designed in the middle of the inner side of the outer ring 1, an outer rolling path is designed on the outer side of the inner ring 2, the inner ring 2 is positioned on the inner side of the outer ring 1, the rollers 3 are arranged between the outer ring 1 and the inner ring 2, the rollers 3 roll in the inner rolling path and the outer rolling path, rotating shafts 6 are respectively designed at two ends of each roller 3, the retainers 4 are respectively designed into a left retainer and a right retainer, the left retainer 4 and the right retainer 4 are respectively annular sheet retainers, the two retainers 4 are symmetrically designed with a plurality of shaft holes 7, and the rotating shafts 6 at two ends of each roller 3 are respectively and correspondingly and rotatably inserted into the shaft holes 7 on the retainers 4 at two sides; the inner raceway is designed into an annular groove shape, the outer raceway is designed into an annular step, the retainer ring 5 is arranged on the outer side of the inner ring 2, meanwhile, the retainer ring 5 is stopped at the end side of the annular step to enable the annular step to form the annular groove shape, and the outer diameter of the retainer ring 5 is the same as that of the inner ring 2; grease filling spaces 10 are designed among the rollers 3; the retainer 4 is a plastic retainer.

The roller 3 is a cylindrical roller 3.

A circle of the outer end part of the rotating shaft 6 is provided with an annular protrusion 8, a circle of the end part of the annular protrusion 8 is provided with a ring-shaped tapered chamfer, a circle of the outer end part of the inner side of the shaft hole 7 of the retainer 4 is provided with a ring-shaped clamping table 9, a circle of the inner end part of the inner side of the shaft hole 7 is provided with a ring-shaped tapered chamfer, the rotating shaft 6 is inserted into the shaft hole 7, and the ring-shaped protrusion 8 is clamped in the ring-shaped clamping table 9. The design of the annular conical chamfer is convenient for the rotating shaft to be inserted into the shaft hole, and the annular clamping table is matched with the annular bulge to prevent the rotating shaft from being separated from the shaft hole.

The plastic retainer is one of a glass fiber reinforced polyamide 66 retainer, a glass fiber reinforced polyamide 46 retainer and a polyamide 46 retainer. The design of the plastic retainer ensures that the roller can normally and effectively rotate, no scrap iron is generated, and the service life of the bearing is prolonged.

When the bearing is used, the outer ring, the roller, the retainer and the inner ring are assembled in advance, the retainer ring is assembled with the inner ring when the bearing is installed and used and is installed on an applied equipment installation shaft, and the inner ring and the retainer ring are fixed together through the self structure of the equipment; the bearing assembly is characterized in that a certain number of rollers are placed in an inner raceway of an outer ring, grease is filled in the inner raceway, and then the retainers on two sides are sequentially installed; after the rollers and the retainer are assembled, grease is filled in a grease filling space between the rollers, the inner ring is inserted from one end, the outer raceway on the inner ring is an annular step, the outer end side is provided with a notch which just can ensure that the rollers are filled in the annular step, and finally the notch is sealed and fixed through the retainer ring, so that the bearing can be used.

Claims

1. A chip-free long-life roller bearing is characterized by comprising an outer ring (1), an inner ring (2), rollers (3), a retainer (4) and a retainer ring (5), wherein an inner raceway is designed in the middle of the inner side of the outer ring (1), an outer raceway is designed on the outer side of the inner ring (2), the inner ring (2) is positioned on the inner side of the outer ring (1), a plurality of rollers (3) are arranged between the outer ring (1) and the inner ring (2), the rollers (3) roll in the inner raceway and the outer raceway, rotating shafts (6) are respectively designed at two ends of the roller (3), the left retainer (4) and the right retainer (4) are respectively annular sheet retainers, the two retainers (4) are symmetrically designed with a plurality of shaft holes (7), and the rotating shafts (6) at two ends of the roller (3) are respectively correspondingly and rotatably inserted into the shaft holes (7) on the retainers (4) at two sides; the inner raceway is designed into an annular groove shape, the outer raceway is designed into an annular step, the retainer ring (5) is arranged on the outer side of the inner ring (2), the retainer ring (5) is retained on the end side of the annular step to enable the annular step to form the annular groove shape, and the outer diameter of the retainer ring (5) is the same as that of the inner ring (2); grease filling spaces (10) are designed among the rollers (3); the retainer (4) is a plastic retainer.

2. A debris-free long-life roller bearing according to claim 1, characterized in that said rollers (3) are cylindrical rollers (3).

3. The chip-free long-life roller bearing according to claim 1, wherein a circle of an outer end of the rotating shaft (6) is designed with an annular protrusion (8), a circle of an end of the annular protrusion (8) is designed with an annular tapered chamfer, a circle of an inner outer end of the shaft hole (7) of the retainer (4) is designed with an annular clamping table (9), a circle of an inner end of the shaft hole (7) is designed with an annular tapered chamfer, the rotating shaft (6) is inserted into the shaft hole (7), and the annular protrusion (8) is clamped in the annular clamping table (9).

4. The chip-free long-life roller bearing according to claim 1, wherein the plastic cage is one of a glass fiber reinforced polyamide 66 cage, a glass fiber reinforced polyamide 46 cage, and a polyamide 46 cage.