CN210509956U

CN210509956U - Novel bolt roller bearing

Info

Publication number: CN210509956U
Application number: CN201921096280.5U
Authority: CN
Inventors: 蒋澄军; 刘弈钢
Original assignee: Changzhou Yunfan Bearing Co ltd
Current assignee: Changzhou Yunfan Bearing Co ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-05-12
Anticipated expiration: 2029-07-15

Abstract

The utility model discloses a novel bolt roller bearing, which comprises a bearing consisting of an outer ring and a roller pin, and also comprises a retainer, a sealing ring, a retainer ring and a bolt shaft; the two side surfaces of the roller pins are of convexity structures, and the central height of the bulges is 1/2 of the radius length of the section circle of the roller pins; the needle roller holes of the retainer are arranged into a structure capable of accommodating the two needle rollers, and three-prescription-shaped recesses are arranged on the inner walls of the needle roller holes at two ends parallel to the needle rollers and are uniformly distributed; the needle roller is guided by the retainer, the retainer is guided by the outer diameter of the bolt shaft, the sealing rings are arranged at two ends of the outer ring, and the retainer rings are pressed on the bearing. The bearing has more needle rollers than the common retainer bearing, has large bearing capacity, has higher rotating speed than the bearing without the retainer due to the guide of the retainer, is directly arranged on a bracket through a bolt shaft and fixed by a nut, is convenient to assemble, disassemble and replace, has long service life, and is more suitable for automatic assembly line work.

Description

Novel bolt roller bearing

Technical Field

The utility model belongs to the technical field of the bearing, concretely relates to novel bolt gyro wheel bearing.

Background

The bearing is an important part in the modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body. It can also be said that the member for reducing the friction coefficient during power transmission and keeping the center position of the shaft fixed when the other members are moved relative to each other on the shaft. The bearing is a lightweight part in modern mechanical equipment. Its main function is to support the mechanical rotating body to reduce the friction coefficient of mechanical load of equipment in the transmission process. Needle bearings are roller bearings with cylindrical rollers, which are both thin and long relative to their diameter. Such rollers are called needles. The bearing has high load bearing capacity despite its small cross section, and the needle roller bearing is provided with long and thin rollers, so that it has compact radial structure, and its inner diameter size and load capacity are the same as other bearing types, and its outer diameter is minimum, so that it is specially applicable to bearing structure whose radial installation size is limited.

The service life of the existing bearing of the same type is short, and the existing bearing is not suitable for automatic assembly line work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel bolt gyro wheel bearing to solve the problem among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a novel bolt roller bearing comprises a bearing consisting of an outer ring and a roller pin, and also comprises a retainer, a sealing ring, a check ring and a bolt shaft; the two side surfaces of the roller pins are of convexity structures, and the central height of the bulges is 1/2 of the radius length of the section circle of the roller pins; the needle roller holes of the retainer are arranged into a structure capable of accommodating the two needle rollers, and three-prescription-shaped recesses are arranged on the inner walls of the needle roller holes at two ends parallel to the needle rollers and are uniformly distributed; the needle roller is guided by the retainer, the retainer is guided by the outer diameter of the bolt shaft, the sealing rings are arranged at two ends of the outer ring, and the retainer rings are pressed on the bearing.

Furthermore, the hole wall of the retainer parallel to the roller pins is of a convex structure towards the center of the retainer, and the height of the protrusion is the thickness of the retainer.

Furthermore, 1/8 with the depth of the three-prescription-shaped recess being the width of the hole wall of the retainer is arranged on the inner wall of the needle roller hole at two ends parallel to the needle rollers.

The utility model discloses a this kind of bearing is more than general holder bearing's kingpin in quantity, and bearing capacity is also big, because there is the guide of holder, is higher than the bearing rotational speed that does not have the holder simultaneously again, through bolt axle direct mount on the support, fixed with the nut, and loading and unloading are changed conveniently, and long service life more is fit for automatic assembly line work.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a structural view of a bolt shaft of the present invention;

FIG. 3 is a cross-sectional view of the middle outer ring of the present invention;

FIG. 4 is a cross-sectional view of the middle retainer ring of the present invention;

FIG. 5 is a view of the needle roller structure of the present invention;

fig. 6 is a sectional view of the middle retainer of the present invention.

In the figure: 1-outer ring, 2-sealing ring, 3-rolling needle, 4-retainer, 5-retainer ring and 6-bolt shaft.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-6, a novel bolt roller bearing comprises a bearing composed of an outer ring 1 and a needle roller 3, and further comprises a retainer 4, a seal ring 2, a retainer ring 5 and a bolt shaft 6; the two side surfaces of the roller pin 3 are in convexity structures, and the center height of the bulge is 1/2 of the radius length of the section circle of the roller pin 3; the needle roller holes of the retainer 4 are designed into a structure capable of accommodating the two needle rollers 3, and three-prescription-shaped recesses are arranged on the inner walls of the needle roller holes at two ends parallel to the needle rollers and are uniformly distributed; the needle roller 3 is guided by the retainer 4, the retainer 4 is guided by the outer diameter of the bolt shaft 6, the sealing rings 2 are arranged at two ends of the outer ring 1, and the retainer rings 5 are pressed on the bearing. The whole hole wall of the retainer 4 parallel to the roller pins is of a convex structure towards the center of the retainer, and the height of the protrusion is the thickness of the retainer 4. The inner walls of the needle roller holes at two ends parallel to the needle rollers are provided with three-prescription-shaped recesses with the depth being 1/8 of the width of the hole wall of the retainer 4.

The needle roller of the bearing is guided by the retainer, the retainer is guided by the outer diameter of the bolt shaft, the sealing rings are arranged at two ends of the outer ring, lubricating grease is filled in the bearing, the retainer ring is pressed on the shaft, so that a plurality of bearing parts form a whole, the assembly of the bearing is facilitated, the lubricating hole is formed in the shaft, the lubricating grease can be filled in the bearing after the bearing is used for a period of time, and the service life of the bearing is prolonged.

The bearing has two rolling needles in one retainer hole, has more rolling needles than the common retainer bearing, has large bearing capacity, has higher rotating speed than the bearing without the retainer due to the guide of the retainer, is directly arranged on a bracket through a bolt shaft and fixed by a nut, is convenient to assemble, disassemble and replace, and is commonly used on an automatic assembly line.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel bolt gyro wheel bearing, includes the bearing of compriseing outer lane (1) and kingpin (3), its characterized in that: the device also comprises a retainer (4), a sealing ring (2), a retainer ring (5) and a bolt shaft (6); the two side surfaces of the roller pin (3) are in convexity structures, and the center height of the bulge is 1/2 of the radius length of the section circle of the roller pin (3); the needle roller holes of the retainer (4) are arranged into a structure capable of accommodating the two needle rollers (3), and three-prescription-shaped recesses are arranged on the inner walls of the needle roller holes at two ends parallel to the needle rollers and are uniformly distributed; the rolling needles (3) are guided by the retainer (4), the retainer (4) is guided by the outer diameter of the bolt shaft (6), the sealing rings (2) are arranged at two ends of the outer ring (1), and the retainer ring (5) is pressed on the bearing.

2. The new bolted roller bearing of claim 1 wherein: the hole wall of the retainer (4) parallel to the roller pins is of a convex structure towards the center of the retainer, and the height of the protrusion is the thickness of the retainer (4).

3. The new bolted roller bearing of claim 2 wherein: the inner walls of the needle roller holes at two ends parallel to the needle rollers are provided with three-prescription-shaped recesses with the depth being 1/8 of the width of the hole wall of the retainer (4).