CN219262974U

CN219262974U - Needle roller bearing

Info

Publication number: CN219262974U
Application number: CN202320347131.1U
Authority: CN
Inventors: 杨东辉
Original assignee: Huzhou Shuangxi Bearing Co ltd; Zhejiang 8+1 Precision Machinery Co Ltd
Current assignee: Huzhou Shuangxi Bearing Co ltd; Zhejiang 8+1 Precision Machinery Co Ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-06-27
Anticipated expiration: 2033-02-16

Abstract

The utility model provides a needle bearing, which comprises an outer ring and a plurality of needle rollers, wherein the outer ring is sleeved on the mandrel and forms a rollaway nest with the mandrel for the needle rollers to fully mount on, the needle rollers can axially slide on the mandrel, washers are respectively attached to the end parts of the two axial ends of the outer ring, the washers can form limit fit with the needle rollers, and mounting grooves are respectively formed in the positions, close to the two ends, of the mandrel. Aiming at the defects of the prior art, the utility model provides the needle bearing which is full of the needle roller, can perform small axial movement with the outer ring and has a stable structure.

Description

Needle roller bearing

Technical Field

The present utility model relates to a needle bearing.

Background

The roller bearing is a rolling bearing with a slender cylindrical roller, has the advantages of convenient use and maintenance, high precision and long service life, is commonly used in various mechanical equipment, and when the roller bearing is used in a turntable divider, as the turntable divider is a device which achieves intermittent motion of an output shaft through a cam, in the operation process of the roller bearing, the cam is driven by the output shaft to rotate first, then the cam is driven by the cam to rotate to drive the output shaft to rotate, and the roller bearing is driven by the cam to rotate only to a partial angle in the rotation process by utilizing the shape of the cam, so that the intermittent motion is achieved.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the needle roller bearing with small axial movement of the outer ring, stable structure and strong bearing capacity.

In order to achieve the above purpose, the utility model provides a needle bearing, which comprises an outer ring, a plurality of needle rollers and a mandrel, wherein the outer ring is sleeved on the mandrel and forms a rollaway nest with the needle rollers for the needle rollers to fully mount on, the needle rollers can axially slide on the mandrel, washers are respectively attached to the end parts of the two axial ends of the outer ring, the washers can form limit fit with the needle rollers, and mounting grooves are respectively formed in the positions, close to the two ends, of the mandrel.

The technical scheme has the advantages that: the mandrel is arranged to replace a conventional inner ring, the mandrel is arranged in the outer ring in a penetrating manner, a raceway for fully loading and sliding a plurality of rolling pins is formed by the mandrel and the outer ring, so that the outer ring and the rolling pins can axially move relative to the mandrel under the working condition that the mandrel needs to axially move in a certain range relative to the turntable divider main body, an additional movable part arranged on the turntable divider is not required to be connected with the outer ring, the processing difficulty of the turntable divider main body part is reduced, the turntable divider is better adapted, and the fully loaded rolling pins can provide stronger bearing capacity; on the basis, the washers are arranged at the two ends of the outer ring, the mounting grooves are arranged at the two ends of the mandrel, the washers can limit the plurality of rolling pins, the mounting grooves can be used for mounting the limiting parts of the turntable divider, and the washers can play a role in buffering between the outer ring and the limiting parts of the turntable divider.

The present utility model may be further configured to: the inner edge of the gasket and the peripheral wall of the mandrel are arranged at intervals.

Through further setting, set up the packing ring into its inner edge and dabber periphery wall looks interval for the dabber can not take place the friction with the inner edge of packing ring in the rotation in-process, reduces the loss, also guarantees stability.

The present utility model may be further configured to: the two axial end parts of the outer ring are respectively provided with a convex part, and the gasket is provided with a clamping groove which is used for being matched with the convex parts in a clamping way.

Through further setting up, set up bellying and annular respectively on outer lane and packing ring, form joint cooperation between bellying and the draw-in groove, constitute the location between outer lane and the packing ring, let installation and use more convenient.

The present utility model may be further configured to: the two ends tip department of outer lane all be provided with a plurality of oil guiding grooves, a plurality of oil guiding grooves circumference interval arrange the setting, lead the radial extension of oil guiding groove and form the intercommunication of outer lane inner wall and outer wall.

Through further setting up, set up a plurality of oil guide grooves that form the intercommunication of outer lane inner wall and outer wall in the both ends tip department of outer lane, after the tip of packing ring laminating at the outer lane, oil guide groove can form the pipeline that lubricating oil trickled on the revolving stage decollator to guarantee the steady operation of bearing.

The present utility model may be further configured to: inclined surfaces with chamfer-shaped sections are arranged at the two ends, close to the axial direction, of the inner wall of the outer ring.

Through further setting up, set up the inclined plane that the cross-section is the chamfer form in the both ends department of outer lane inner wall, form annular oil storage space in the raceway, conveniently lubricate the kingpin fast.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a front view of an embodiment of the present utility model;

FIG. 3 is a cross-sectional view at A-A in FIG. 2 in accordance with an embodiment of the present utility model;

FIG. 4 is an enlarged view of portion a of FIG. 3 in accordance with an embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of the end of the outer ring according to the embodiment of the present utility model;

wherein: an outer ring 1; a boss 11; an oil guide groove 12; an inclined surface 13; a needle roller 2; a mandrel 3; a mounting groove 31; a gasket 4; a clamping groove 41.

Detailed Description

An embodiment of a needle bearing of the present utility model is shown in FIGS. 1-5: the novel turntable cutter comprises an outer ring 1, a plurality of rolling pins 2 and a mandrel 3, wherein the outer ring 1 is sleeved on the mandrel 3 and forms a rollaway nest with the rolling pins 2 for the rolling pins 2 to fully load on, the rolling pins 2 can axially slide on the mandrel 3, gaskets 4 are respectively attached to the end parts of the two axial ends of the outer ring 1, the gaskets 4 can form limit fit with the rolling pins 2, the mandrel 3 is provided with mounting grooves 31 near the two ends, and the mandrel 3 replaces a conventional inner ring, so that the outer ring 1 and the rolling pins 2 can axially move relative to the mandrel 3 under the working condition that the mandrel 3 needs to axially move relative to a turntable cutter body within a certain range, an additional movable part on the turntable cutter is not required to be connected with the outer ring 1, the processing difficulty of the turntable cutter body part is reduced, the turntable cutter is well adapted, and the fully loaded rolling pins 2 can provide stronger bearing capacity; the gasket 4 and the two ends of the mandrel 3 are provided with the mounting grooves 31, the gasket 4 can limit the plurality of rolling pins 2, the mounting grooves 31 can be used for mounting the limiting parts of the turntable divider, and the gasket 4 can play a role in buffering between the gasket 1 and the limiting parts of the turntable divider.

Further, the inner edge of the gasket 4 and the outer peripheral wall of the mandrel 3 are arranged at intervals, so that the mandrel 3 can not rub with the inner edge of the gasket 4 in the rotating process, the loss is reduced,

further, protruding portions 11 are arranged at the two axial end portions of the outer ring 1, clamping grooves 41 for being matched with the protruding portions 11 in a clamping mode are formed in the gasket 4, and the protruding portions 11 and the clamping grooves 4 are matched in a clamping mode to form positioning between the outer ring 1 and the gasket 4.

Further, a plurality of oil guide grooves 12 are formed in the end portions of the two ends of the outer ring 1, the oil guide grooves 12 are circumferentially arranged at intervals, the oil guide grooves 12 radially extend and form communication between the inner wall and the outer wall of the outer ring 1, after the gasket 4 is attached to the end portion of the outer ring 1, the oil guide grooves 12 can form a pipeline for lubricating oil to flow on the turntable divider, and stable operation of the needle bearing is guaranteed.

Further, inclined planes 13 with chamfer-shaped sections are arranged at the two ends, close to the axial direction, of the inner wall of the outer ring 1, and annular oil storage spaces are formed in the roller paths, so that the needle roller 2 can be conveniently and rapidly lubricated.

The above examples are only one of the preferred embodiments of the present utility model, and the ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are included in the scope of the present utility model.

Claims

1. The utility model provides a bearing, includes outer lane and a plurality of kingpin, its characterized in that: the novel rolling needle comprises a mandrel, the outer ring is sleeved on the mandrel and forms a rollaway nest with the mandrel for a plurality of rolling needles to fully mount on, the rolling needles can axially slide on the mandrel, gaskets are respectively arranged at the end parts of two axial ends of the outer ring in a fitting mode, the gaskets can form limit fit with the rolling needles, and mounting grooves are respectively formed in the positions, close to the two ends, of the mandrel.

2. The needle bearing of claim 1, wherein: the inner edge of the gasket and the peripheral wall of the mandrel are arranged at intervals.

3. The needle bearing according to claim 1 or 2, characterized in that: the two axial end parts of the outer ring are respectively provided with a convex part, and the gasket is provided with a clamping groove which is used for being matched with the convex parts in a clamping way.

4. The needle bearing of claim 2, wherein: the two ends tip department of outer lane all be provided with a plurality of oil guiding grooves, a plurality of oil guiding grooves circumference interval arrange the setting, lead the radial extension of oil guiding groove and form the intercommunication of outer lane inner wall and outer wall.

5. The needle bearing of claim 4, wherein: inclined surfaces with chamfer-shaped sections are arranged at the two ends, close to the axial direction, of the inner wall of the outer ring.