CN218625090U

CN218625090U - Needle roller inner bush

Info

Publication number: CN218625090U
Application number: CN202222998304.4U
Authority: CN
Inventors: 彭冬梅
Original assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-03-14
Anticipated expiration: 2032-11-08

Abstract

The utility model discloses an interior bush of kingpin, including the interior bush body, the interior bush body is cyclic annularly, all be equipped with a plurality of bosss along radial extension on the outer diametric plane that the interior bush is close to its both ends, it is a plurality of the circumference of interior bush body is followed to the boss distributes, the both sides that the interior bush corresponds the boss all are equipped with the recess, the terminal surface that the recess extends to the interior bush is the opening setting. The locking is realized through the matching of the boss on the outer diameter surface of the inner bushing and the roller pins, the inner bushing is prevented from sliding out in the transportation process, the bearing is prevented from being scattered, and the annular flange on the inner bushing is convenient to push out after installation.

Description

Needle roller inner bush

Technical Field

The utility model relates to a bush in kingpin.

Background

In some special occasions, in order to meet the bearing performance requirement of the bearing, the retainer structure of the bearing can be made into rollers with unlocked inner diameters or full roller pins without the retainer. Such bearings are subject to racking when not installed in customer equipment, which is generally solved by inserting an inner bush around the needle roller. At present, a common inner bushing is annular, the outer diameter of the common inner bushing and the inner width of a needle roller set are circular to form a certain interference magnitude to form a whole to prevent a bearing from being scattered, and generally, the problem does not exist under normal conditions, but the inner bushing easily slides out to cause the bearing to be scattered in bumping and long-distance transportation in the transportation process.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a bush in kingpin prevents that the bush from sliding off in the transportation, leads to the bearing to scatter the frame.

In order to achieve the above purpose, the utility model provides a following technical scheme: the inner bushing comprises an inner bushing body, wherein the inner bushing body is annular, a plurality of bosses extending along the radial direction are arranged on the outer diameter surface, close to the two ends of the inner bushing body, of the inner bushing, the bosses are distributed along the circumferential direction of the inner bushing body, grooves are formed in the two sides, corresponding to the bosses, of the inner bushing, and the grooves extend to the end face of the inner bushing and are arranged in an opening mode.

As a further improvement of the utility model, the two sides of the boss are provided with the inclination angles which are convenient for installation and disassembly.

As a further improvement, the number of boss is four, and evenly distributes on the external diameter face that the inner liner is close to its both ends, be 180 degrees symmetric distributions with two bosss of one end, the boss at inner liner both ends is the staggered distribution.

As a further improvement of the utility model, an annular flange is arranged on the inner diameter surface of the inner bushing body.

The utility model has the advantages that: the locking is realized through the matching of the boss on the outer diameter surface of the inner bushing and the roller pins, the inner bushing is prevented from sliding out in the transportation process, the bearing is prevented from being scattered, and the annular flange on the inner bushing is convenient to push out after installation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an installation schematic diagram of the present invention.

Reference numerals: 1. an inner liner body; 2. a boss; 3. a groove; 4. an inclination angle; 5. a cage; 6. rolling needles; 7. an annular flange.

Detailed Description

The present invention will be described in further detail with reference to embodiments shown in the drawings.

Referring to fig. 1-2, a needle roller inner bush comprises an inner bush body 1, wherein the inner bush body 1 is annular, a plurality of bosses 2 extending in the radial direction of the inner bush are arranged on the outer diameter surfaces of the inner bush body 1 close to the two ends of the inner bush body, the plurality of bosses 2 are distributed along the circumferential direction of the inner bush body 1, grooves 3 are arranged on the two sides of the inner bush body 1 corresponding to the bosses 2, the grooves 3 extend to the end surface of the inner bush and are arranged in an opening manner, as shown in fig. 2, the inner bush is axially mounted inside a retainer 5, the outer diameter surfaces of the inner bush are in interference fit with needle rollers 6 on the retainer 5, the bosses 2 at the two ends are respectively abutted against the two ends of the needle rollers 6 to form locking, the bosses 2 at the two ends can effectively block axial force transmitted from the two sides, the phenomenon that the inner bush slides out in the transportation process to cause bearing scattering is avoided, in order to reduce the damage to the needle rollers 6 during interference, the inner bush is conveniently deformed by arranging the grooves 3 on the two sides of the boss 2, the retainer 3 can be adjusted according to ensure the strength of the inner bush, and the product is provided with a lock point for the outer diameter of the retainer 5 when the inner bush is mounted.

The both sides of boss 2 are equipped with the angle of inclination 4 convenient to installation and dismantlement, set up angle of inclination 4 and make the interior bush reduce the damage to kingpin 6 when the installation, and the number of boss 2 is four in this embodiment, and evenly distributes on the outside diameter face that the interior bush is close to its both ends, and the left and right-hand member of interior bush is provided with two respectively promptly, two bosses 2 with the one end are 180 degrees symmetric distributions, the boss 2 at interior bush both ends is the staggered distribution, and the boss 2 of staggered distribution can avoid recess 3 to open in the same or close position, leads to the interior bush can't recover after deformation, still be equipped with annular flange 7 on the inside diameter face of interior bush body 1, set up annular flange 7 and be convenient for the installation or the dismantlement of inside lining day.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The needle roller neck bush is characterized by comprising a neck bush body, wherein the neck bush body is annular, a plurality of bosses extending along the radial direction are arranged on the outer diameter surface of the neck bush close to the two ends of the neck bush body, the bosses are distributed along the circumferential direction of the neck bush body, grooves are arranged on the two sides of the neck bush corresponding to the bosses, and the grooves extend to the end face of the neck bush and are arranged in an opening mode.

2. The needle roller inner bush according to claim 1, wherein both sides of the boss are provided with inclination angles for easy mounting and dismounting.

3. The needle roller inner bushing as claimed in claim 1 or 2, wherein the number of the bosses is four, and the bosses are equally distributed on the outer diameter surface of the inner bushing near both ends thereof, the two bosses at the same end are symmetrically distributed at 180 degrees, and the bosses at both ends of the inner bushing are distributed in a staggered manner.

4. The needle roller inner bush according to claim 1, wherein an annular flange is provided on an inner diameter surface of the inner bush body.