CN211202623U

CN211202623U - Bearing needle roller retainer

Info

Publication number: CN211202623U
Application number: CN201921902511.7U
Authority: CN
Inventors: 李晓迎
Original assignee: Jiangsu Rongtianle Machinery Co ltd
Current assignee: Jiangsu Rongtianle Machinery Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-08-07
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a bearing needle roller retainer, which comprises an upper fixing ring and a lower fixing ring; a plurality of connecting beams are uniformly distributed between the upper fixing ring and the lower fixing ring along the circumferential direction of the upper fixing ring and the lower fixing ring, the upper end of each connecting beam is fixedly connected with the upper fixing ring, and the lower end of each connecting beam is fixedly connected with the lower fixing ring. The utility model discloses a both sides wall symmetry of tie-beam sets up, the lateral wall of tie-beam includes first plane and second plane, first plane is the obtuse angle setting with the second plane, the setting is the obtuse angle, pack into the kingpin when holding to the space, vacuole formation between the lateral wall of roller needle outer peripheral face can and tie-beam, when pouring into the grease into to bearing inside, unnecessary grease can be stored in the cavity, it lubricates the kingpin to last, and the setting is the obtuse angle, can reduce the area of contact between kingpin and the tie-beam, reduce the friction loss between kingpin and the tie-beam, thereby the life of bearing has been improved, and the production cost is saved.

Description

Bearing needle roller retainer

Technical Field

The utility model belongs to the technical field of the bearing technique and specifically relates to a bearing axle bearing needle roller holder is related to.

Background

The shaft connecting bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision. Bearing lubrication is an important guarantee factor of the service life of a bearing, a traditional shaft-connected bearing needle roller retainer adopts a cylindrical window hole, only has the function of equally dividing a needle roller, cannot lubricate the needle roller, and has larger friction with the cylindrical window hole, so that the bearing is damaged too early, and the production cost is improved.

Therefore, it is necessary to design a needle roller cage for a bearing to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bearing needle roller retainer to prior art's weak point.

Realize the utility model discloses the technical scheme of purpose is: a needle roller retainer of a bearing comprises an upper fixing ring and a lower fixing ring; a plurality of connecting beams are uniformly distributed between the upper fixing ring and the lower fixing ring along the circumferential direction of the upper fixing ring and the lower fixing ring, the upper ends of the connecting beams are fixedly connected with the upper fixing ring, and the lower ends of the connecting beams are fixedly connected with the lower fixing ring; two side walls of the connecting beam are symmetrically arranged; the side wall of the connecting beam comprises a first plane and a second plane; the first plane and the second plane are arranged at an obtuse angle; and an accommodating space for installing the bearing needle roller is formed between the adjacent connecting beams.

And both sides of the outer end part of each connecting beam are provided with locking pin bulges.

The minimum width of the accommodating space is L1, L1 is smaller than the diameter of the bearing needle roller.

The maximum width of the accommodating space is L2, L2 is more than or equal to 1.04 times of the diameter of the bearing needle roller.

Go up solid fixed ring, tie-beam and lock needle arch as an organic whole injection moulding.

The upper fixing ring is made of high-temperature-resistant engineering plastics.

By adopting the technical scheme, the utility model discloses following beneficial effect has: (1) the utility model discloses a both sides wall symmetry of tie-beam sets up, the lateral wall of tie-beam includes first plane and second plane, first plane is the obtuse angle setting with the second plane, the setting is the obtuse angle, pack into the kingpin when holding to the space, vacuole formation between the lateral wall of roller needle outer peripheral face can and tie-beam, when pouring into the grease into to bearing inside, unnecessary grease can be stored in the cavity, it lubricates the kingpin to last, and the setting is the obtuse angle, can reduce the area of contact between kingpin and the tie-beam, reduce the friction loss between kingpin and the tie-beam, thereby the life of bearing has been improved, and the production cost is saved.

(2) The utility model discloses it is protruding to have set up the lock needle, can prevent that the kingpin from following the outside to the space and breaking away from, has guaranteed bearing arrangement's stability.

(3) The utility model discloses a minimum width of accommodation space is for being less than the diameter of bearing kingpin, can prevent that the kingpin from breaking away from to the inboard in space, further guarantees bearing overall structure's stability.

(4) The utility model discloses the maximum width of accommodation space is the diameter of the bearing kingpin more than or equal to 1.04 times, and the installation of the kingpin of being convenient for can reduce the frictional force of kingpin and accommodation space moreover, reduces the friction loss.

(5) The utility model discloses an upper fixed ring, lower fixed ring, tie-beam and lock needle are protruding injection moulding as an organic whole, and processing is convenient.

(6) The utility model discloses a bearing needle roller holder is even to axle adopts high temperature resistant engineering plastics to make, and not only high temperature resistant can guarantee moreover that the holder has sufficient intensity.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

The reference numbers in the drawings are:

the lock pin fixing device comprises an upper fixing ring 1, a lower fixing ring 2, a connecting beam 3, a first plane 3-1, a second plane 3-2, a lock pin bulge 3-3 and an accommodating space 4.

Detailed Description

(example 1)

Referring to fig. 1 and 2, the needle roller cage for a shaft coupling bearing of the present embodiment includes an upper retainer ring 1 and a lower retainer ring 2.

A plurality of connecting beams 3 are uniformly distributed between the upper fixing ring 1 and the lower fixing ring 2 along the circumferential direction of the upper fixing ring, the upper ends of the connecting beams 3 are fixedly connected with the upper fixing ring 1, and the lower ends of the connecting beams are fixedly connected with the lower fixing ring 2. Two side walls of the connecting beam 3 are symmetrically arranged. The side walls of the connecting beam 3 comprise a first plane 3-1 and a second plane 3-2. The first plane 3-1 and the second plane 3-2 are arranged in an obtuse angle. And a containing space 4 for installing the bearing needle roller is formed between the adjacent connecting beams 3.

Furthermore, in order to prevent the bearing needle rollers from falling off, two sides of the outer end part of each connecting beam 3 are provided with locking needle protrusions 3-3.

Furthermore, the minimum width of the accommodating space 4 is L1, L1 is smaller than the diameter of the bearing needle roller, so that the needle roller can be prevented from falling off from the inner side of the accommodating space 4, and the stability of the bearing structure is further ensured.

Furthermore, the maximum width of the accommodating space 4 is L2, L2 is larger than or equal to 1.04 times of the diameter of the bearing roller needle, so that the roller needle is convenient to mount, and the friction force between the roller needle and the accommodating space can be reduced, thereby reducing the friction loss.

Furthermore, the upper fixing ring 1, the lower fixing ring 2, the connecting beam 3 and the lock pin bulges 3-3 are integrally formed by injection molding, so that the processing is convenient.

Furthermore, the upper fixing ring 1 is made of high-temperature-resistant engineering plastics, so that the high temperature can be borne, and the sufficient strength of the retainer can be ensured.

The working principle of the needle roller retainer of the shaft connecting bearing of the embodiment is as follows: firstly, the roller pins are arranged in the space 4, then grease is injected into the bearing through external equipment, part of the grease lubricates the roller pins, redundant grease can be stored in a cavity formed between the peripheral surfaces of the roller pins and the side walls of the connecting beam 3, the roller pins are continuously lubricated, and the contact area between the roller pins and the side walls of the connecting beam 3 is smaller due to the fact that the side walls of the connecting beam 3 form obtuse angles, so that friction loss of the bearing in operation is reduced, the service life of the bearing is prolonged, and production cost is saved.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a bearing needle roller holder which characterized in that: comprises an upper fixed ring (1) and a lower fixed ring (2); a plurality of connecting beams (3) are uniformly distributed between the upper fixing ring (1) and the lower fixing ring (2) along the circumferential direction of the upper fixing ring, the upper ends of the connecting beams (3) are fixedly connected with the upper fixing ring (1), and the lower ends of the connecting beams are fixedly connected with the lower fixing ring (2); two side walls of the connecting beam (3) are symmetrically arranged; the side wall of the connecting beam (3) comprises a first plane (3-1) and a second plane (3-2); the first plane (3-1) and the second plane (3-2) are arranged in an obtuse angle; and an accommodating space (4) for installing the bearing needle roller is formed between the adjacent connecting beams (3).

2. The needle roller cage for a bearing of claim 1, wherein: both sides of the outer end part of each connecting beam (3) are provided with lock pin bulges (3-3).

3. The needle roller cage for bearing of claim 1, wherein the minimum width of the receiving space (4) is L1, L1 is smaller than the diameter of the bearing needle roller.

4. The needle roller cage for the bearing of claim 1, wherein the maximum width of the accommodating space (4) is L2, L2 is 1.04 times or more the diameter of the bearing needle roller.

5. The needle roller cage for a bearing of claim 1, wherein: the upper fixing ring (1), the lower fixing ring (2), the connecting beam (3) and the lock pin bulge (3-3) are integrally formed by injection molding.

6. The needle roller cage for a bearing according to claim 5, wherein: the upper fixing ring (1) is made of high-temperature-resistant engineering plastics.