CN210344037U

CN210344037U - Improved bearing without fixed sleeve

Info

Publication number: CN210344037U
Application number: CN201921361250.2U
Authority: CN
Inventors: 张经伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-04-17
Anticipated expiration: 2029-08-21

Abstract

The utility model relates to an improved bearing without a fixed sleeve, which comprises a bearing outer ring, a bearing inner ring, a plurality of first rolling shafts, a plurality of second rolling shafts and a plurality of third rolling shafts; the bearing outer ring and the bearing inner ring are coaxially arranged, and the bearing inner ring is positioned at the inner side of the bearing outer ring; the axial directions of the first roller, the second roller and the third roller are all parallel to the axial direction of the bearing without the fixed sleeve; the first rollers are arranged at intervals along the outer peripheral side of the bearing inner ring and are abutted against the bearing inner ring, the third rollers are arranged at intervals along the inner peripheral side of the bearing outer ring and are abutted against the bearing outer ring, and the second rollers are located between two adjacent first rollers and two adjacent third rollers and are abutted against the adjacent first rollers and the adjacent third rollers simultaneously. The utility model discloses the inside sliding friction of reducible bearing improves the bearing performance, prolongs the life of bearing.

Description

Improved bearing without fixed sleeve

Technical Field

The utility model relates to a bearing technical field particularly, relates to a fixed cover bearing of modified nothing.

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. The rolling bearing generally comprises an outer ring, an inner ring, a rolling body and a retainer. Rolling bearings are classified into ball bearings and roller bearings according to the shape of the rolling elements.

The traditional roller bearing generally adopts a fixed sleeve to fix the roller, and sliding friction is inevitably generated between the roller and the fixed sleeve, so that on one hand, the bearing is easy to generate heat during operation, and the performance of the bearing is reduced; on the other hand, the bearing is easily worn, and the service life of the bearing is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixed cover bearing is not had in modified, the inside sliding friction of reducible bearing improves the bearing performance, prolongs the life of bearing.

An improved bearing without a fixed sleeve comprises a bearing outer ring, a bearing inner ring, a plurality of first rolling shafts, a plurality of second rolling shafts and a plurality of third rolling shafts; the bearing outer ring and the bearing inner ring are coaxially arranged, and the bearing inner ring is positioned at the inner side of the bearing outer ring; the axial directions of the first roller, the second roller and the third roller are all parallel to the axial direction of the bearing without the fixed sleeve; the first rollers are arranged at intervals along the outer peripheral side of the bearing inner ring and are abutted against the bearing inner ring, the third rollers are arranged at intervals along the inner peripheral side of the bearing outer ring and are abutted against the bearing outer ring, and the second rollers are located between two adjacent first rollers and two adjacent third rollers and are abutted against the adjacent first rollers and the adjacent third rollers simultaneously.

Furthermore, the both ends of second roller bearing are equipped with along its radial outside first protruding edge that extends, the both ends of bearing inner race are equipped with along its radial inside second protruding edge that extends, the both ends of bearing inner race are equipped with along its radial outside third protruding edge that extends, first roller bearing inlays to be established between first protruding edge and third protruding edge, the third roller bearing inlays to be established between first protruding edge and second protruding edge.

Further, the second roller comprises a shaft body and an end part with a first convex edge, and the end part is detachably connected with the shaft body.

Furthermore, the terminal surface of axis body is equipped with the screw hole, the tip corresponds the screw hole and is equipped with the double-screw bolt.

Further, the lengths of the first roller, the second roller and the third roller are equal.

Compared with the prior art, the beneficial effects of the utility model are that: through the roller bearing design, cancel fixed cover to avoid producing sliding friction between roller bearing and the sliding sleeve, reduce the heat that bearing moving self produced, and the interact power between the roller bearing can be effectual with bearing atress even sharing on bearing inner race and the bearing outer race, prolong the life of bearing. The end part of the second rolling shaft is detachably connected with the shaft body, so that the bearing is convenient to assemble.

Drawings

Fig. 1 is a schematic structural view of the improved bearing without the fixed sleeve of the present invention.

Fig. 2 is a schematic sectional view of the improved bearing without the fixed sleeve according to the present invention.

Fig. 3 is a schematic view of the second roller of the improved non-fixed sleeve bearing of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1, fig. 2 and fig. 3, in a preferred embodiment, the improved bearing without fixing sleeve of the present invention mainly comprises a bearing outer ring 1, a bearing inner ring 2, a plurality of first rollers 3, a plurality of second rollers 4 and a plurality of third rollers 5.

The bearing outer ring 1 and the bearing inner ring 2 are both circular rings and are arranged coaxially, and the bearing inner ring 2 is located on the inner side of the bearing outer ring 1. The first roller 3, the second roller 4, and the third roller 5 have the same length, and the axial directions of the three are parallel to the axial directions of the bearing outer ring 1 and the bearing inner ring 2. The first rollers 3 are arranged at intervals along the outer peripheral side of the bearing inner ring 2, and the outer peripheral surface of the first rollers 3 abuts against the outer peripheral surface of the bearing inner ring 2. The third rollers 5 are arranged at intervals along the inner peripheral side of the bearing outer ring 1, and the outer peripheral surface of the third rollers 5 abuts against the inner peripheral surface of the bearing outer ring 1. The second rollers 4 are located between two adjacent first rollers 3 and two adjacent third rollers 5, and the outer peripheral surfaces of the second rollers 4 abut against the outer peripheral surfaces of the adjacent first rollers 3 and the outer peripheral surfaces of the third rollers 5 at the same time.

When the bearing rotates, rolling friction is respectively generated between the bearing inner ring 2 and the first roller 3, between the first roller 3 and the second roller 4, between the second roller 4 and the third roller 5 and between the third roller 5 and the bearing outer ring 1, and the rollers are not required to be fixed by a fixed sleeve, so that the sliding friction in the bearing is greatly reduced, and the performance of the bearing is improved.

Referring to fig. 2, two ends of the second roller 4 are provided with first protruding edges 41 extending outward along the radial direction, two ends of the outer ring 1 are provided with second protruding edges 11 extending inward along the radial direction, and two ends of the inner ring 2 are provided with third protruding edges 21 extending outward along the radial direction. A first groove body is formed by enclosing the first convex edge 41 and the third convex edge 21, and the first roller 3 is embedded in the first groove body; a second groove body is formed by enclosing the first convex edge 41 and the second convex edge 11, and the third roller 5 is embedded in the second groove body. Through setting up first protruding edge 41, second protruding edge 11, and third protruding edge 21, can form spacing to the roller from the axial direction of bearing, avoid the roller to deviate from in the rotation process.

In this embodiment, the second roller 4 includes a cylindrical shaft body 42 and an end portion 43 provided at one end of the shaft body 42. The end portion 43 has a first flange 41, a threaded hole, not shown, is provided on the end surface of the shaft body 42, a stud 44 is provided on the end portion 43 corresponding to the threaded hole, and the end portion 43 can be connected to the shaft body 42 by screwing the stud 44 into the threaded hole. The end portion 43 is detachably connected to the shaft body 42, so that the assembly of the bearing is facilitated. During specific assembly, the first roller 3, the shaft body 42 of the second roller 4 and the third roller 5 are sequentially placed between the bearing outer ring 1 and the bearing inner ring 2, and then the end part 43 is connected with the shaft body 42, so that the assembly is completed. In addition, in the present embodiment, the end portion 43 at one end of the shaft body 42 is detachably connected, and in other embodiments, both end portions of the shaft body 42 may be detachably connected to the shaft body 42.

The utility model discloses a bearing inner race 1, bearing inner race 2, first roller bearing 3, second roller bearing 4, and the contact surface of third roller bearing 5 each other all belong to rolling friction, avoid setting up fixed cover and the sliding friction who produces simultaneously, thereby greatly reduced the wearing and tearing of bearing and generate heat, also lower than traditional bearing to lubricated requirement, including first roller bearing 3, second roller bearing 4, and third roller bearing 5's interact can evenly share bearing outer race 1 and bearing inner race 2 to the power that the bearing bore on, avoided the produced fatigue of the long-term atress of same position and leaded to the bearing too fast damage, thereby prolong the life-span of bearing.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

1. An improved bearing without a fixed sleeve is characterized by comprising a bearing outer ring, a bearing inner ring, a plurality of first rolling shafts, a plurality of second rolling shafts and a plurality of third rolling shafts; the bearing outer ring and the bearing inner ring are coaxially arranged, and the bearing inner ring is positioned at the inner side of the bearing outer ring; the axial directions of the first roller, the second roller and the third roller are all parallel to the axial direction of the bearing without the fixed sleeve; the first rollers are arranged at intervals along the outer peripheral side of the bearing inner ring and are abutted against the bearing inner ring, the third rollers are arranged at intervals along the inner peripheral side of the bearing outer ring and are abutted against the bearing outer ring, and the second rollers are located between two adjacent first rollers and two adjacent third rollers and are abutted against the adjacent first rollers and the adjacent third rollers simultaneously.

2. The improved busless bearing of claim 1 wherein the second rollers have first flanges extending radially outwardly at opposite ends of the second rollers, the outer race has second flanges extending radially inwardly at opposite ends of the outer race, the inner race has third flanges extending radially outwardly at opposite ends of the inner race, the first rollers are nested between the first flanges and the third flanges, and the third rollers are nested between the first flanges and the second flanges.

3. The improved busless bearing of claim 2 wherein said second roller includes a body and an end having a first ledge, said end being detachably connected to said body.

4. The improved, non-retaining sleeve bearing of claim 3, wherein said shaft body has a threaded bore in an end face thereof, said end portion having a threaded stud corresponding to said threaded bore.

5. The improved busless bearing of claim 1 wherein said first roller, second roller, and third roller are equal in length.