CN213176493U

CN213176493U - Reinforced rolling mill bearing

Info

Publication number: CN213176493U
Application number: CN202021666149.0U
Authority: CN
Inventors: 不公告发明人
Original assignee: Shandong Fuma Bearing Co ltd
Current assignee: Shandong Fuma Bearing Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-05-11
Anticipated expiration: 2030-08-12

Abstract

The utility model belongs to the technical field of bearings, in particular to a reinforced rolling mill bearing, which comprises a bearing outer ring, a bearing inner ring, a steel ball and a retainer, wherein the bearing outer ring is sleeved outside the bearing inner ring, one end part of the bearing inner ring extends outwards and forms a bulge part, the bulge part is provided with at least one group of jackscrew holes for assembling jackscrews, each group of jackscrew holes consists of two jackscrew holes distributed on the same radial section, the opposite peripheral surfaces of the bearing outer ring and the bearing inner ring are provided with guide rail grooves for arranging the steel ball, and the retainer is sleeved on the steel ball, the service life of the bearing is prolonged.

Description

Reinforced rolling mill bearing

Technical Field

The utility model belongs to the technical field of the bearing, especially, relate to a strenghthened type rolling mill bearing.

Background

The bearing is a part for fixing and reducing the friction coefficient of load in the process of mechanical transmission, namely, a part for reducing the friction coefficient in the process of power transmission and keeping the center position of a shaft fixed when other parts move relative to each other on the shaft, and the bearing is a light-weight part in the modern mechanical equipment and mainly has the function of supporting a mechanical rotating body to reduce the friction coefficient of mechanical load in the process of transmission.

However, in the case that the existing bearing needs to bear a large torque, the inner diameter of the bearing is in a positive tolerance and the fit of the shaft is in a clearance fit, the torque is transmitted by fastening the shaft and the shaft through screws, if the torque is large, the shaft and the inner diameter of the bearing can slip, the slip can cause heat generation, the service life of the bearing is shortened, and the motion transmission is inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art and providing a reinforced rolling mill bearing.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a strenghthened type rolling mill bearing, includes bearing inner race, steel ball and holder, the bearing inner race suit is in the outside of bearing inner race, a tip of bearing inner race outwards extends and forms the bulge, be equipped with at least a set of jackscrew hole that is used for assembling the jackscrew on the bulge, every jackscrew hole of group all has two jackscrew holes that distribute on same radial cross section to form, bearing inner race and bearing inner race's opposition is equipped with on global settles the guide rail groove of steel ball, the holder suit is on the steel ball, bearing inner race and bearing inner race's opposition global guide rail inslot on be equipped with two annular chutes that the symmetry set up, two equal sliding connection has a plurality of steel balls in the annular chute, the edge and the steel ball of steel ball contact.

Preferably, two sealing covers which are oppositely arranged are arranged in the guide rail groove on the circumferential surface of the bearing outer ring opposite to the circumferential surface of the bearing inner ring.

Preferably, the number of the steel balls is multiple, and the multiple steel balls are uniformly arranged between the bearing outer ring and the bearing inner ring.

Preferably, the bearing outer ring inner surface, the bearing inner ring outer surface and the retainer are coated with grease layers.

Preferably, the jackscrew is threadedly connected within the jackscrew bore.

Preferably, the outer circumferential surface of the bearing outer ring is provided with a positioning groove.

Has the advantages that:

1. the utility model discloses in, improved the area of contact of bearing inner race and axle through the bearing inner race bulge to improve bearing stability and support intensity epaxial.

2. The utility model discloses in, two jackscrews are being distributed on the radial cross-section through the bearing inner race bulge, and two jackscrews make the axle strengthen the fastening degree of bearing and axle, prevent that the bearing from skidding, have avoided arousing the bearing to generate heat because of skidding to the life of bearing has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a reinforced rolling mill bearing;

FIG. 2 is a side view of a salient portion of a reinforced rolling mill bearing.

In the figure: 1-bearing outer ring, 2-bearing inner ring, 3-steel ball, 4-retainer, 5-bulge, 6-jackscrew, 7-jackscrew hole, 8-guide rail groove, 9-steel ball, 10-sealing cover, 11-positioning groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a strenghthened type rolling mill bearing includes bearing inner race 1, bearing inner race 2, steel ball 3 and holder 4, its characterized in that: bearing inner race 1 suit is in the outside of bearing inner race 2, a tip of bearing inner race 2 outwards extends and forms bulge 5, be equipped with at least a set of jackscrew hole 7 that is used for assembling jackscrew 6 on bulge 5, every group jackscrew hole 7 all has two jackscrew holes 7 that distribute on same radial cross section to constitute, bearing inner race 1 is equipped with the guide rail groove 8 of settling steel ball 3 on 2's the opposition global with bearing inner race, 4 suits of holder are on steel ball 3, be equipped with two annular chutes that are equipped with the symmetry and set up in the guide rail groove 8 on 1 of bearing inner race and 2's the opposition global, equal sliding connection has a plurality of steel balls 9 in two annular chutes, the edge of steel ball 9 contacts with steel ball 3.

In this embodiment, two seal covers 10 are provided in the guide rail groove 8 on the circumferential surfaces of the bearing outer race 1 and the bearing inner race 2 facing each other.

In this embodiment, the number of the steel balls 3 is plural, and the plural steel balls 3 are uniformly arranged between the bearing outer ring 1 and the bearing inner ring 2.

In this embodiment, the inner surface of the bearing outer ring 1, the outer surface of the bearing inner ring 2, and the retainer 4 are coated with grease layers.

In this embodiment, the jack 6 is screwed into the jack hole 7.

In this embodiment, the outer circumferential surface of the bearing outer ring 1 is provided with a positioning groove 11.

The working principle is as follows: when the bearing outer ring 1 and the bearing inner ring 2 rotate relatively, the steel ball 3 rolls between the bearing inner ring 2 and the outer bearing ring 1, the friction force between the steel ball 3 and the bearing inner ring 2 and the outer bearing ring 1 can be reduced through the arrangement of the steel ball 9, meanwhile, the positioning groove 11 extending along the circumferential direction is arranged on the outer surface of the bearing outer ring 1, the phenomenon that the bearing is easy to slip is eliminated, the fixing effect is achieved, meanwhile, the grease layer is coated on the inner surface of the bearing outer ring 1, the outer surface of the bearing inner ring 2 and the retainer 4, the lubricating effect is achieved, the friction coefficient in the power transmission process is reduced, meanwhile, the sealing cover 10 arranged on the opposite peripheral surfaces of the bearing outer ring 1 and the bearing inner ring 2 can play a dustproof effect in the guide rail groove 8, meanwhile, the contact area between the bearing inner ring 2 and the shaft is improved through the bulge part 5 of the bearing inner ring 2, and therefore the, meanwhile, two jackscrews 6 are distributed on the radial section of the protruding part of the bearing inner ring 2, the two jackscrews 6 enable the shaft to strengthen the tightness between the bearing and the shaft, the bearing is prevented from slipping, the bearing is prevented from heating due to slipping, and the service life of the bearing is prolonged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a strenghthened type rolling mill bearing, includes bearing inner race (1), bearing inner race (2), steel ball (3) and holder (4), its characterized in that: the bearing outer ring (1) is sleeved on the outer side of the bearing inner ring (2), one end part of the bearing inner ring (2) extends outwards to form a convex part (5), the bulge (5) is provided with at least one group of jackscrew holes (7) for assembling jackscrews (6), each group of jackscrew holes (7) consists of two jackscrew holes (7) distributed on the same radial section, the opposite circumferential surfaces of the bearing outer ring (1) and the bearing inner ring (2) are provided with guide rail grooves (8) for accommodating the steel balls (3), the steel ball bearing is characterized in that the retainer (4) is sleeved on the steel ball (3), two annular sliding grooves which are symmetrically arranged are arranged in guide rail grooves (8) on the opposite peripheral surfaces of the bearing outer ring (1) and the bearing inner ring (2), a plurality of steel balls (9) are connected in the annular sliding grooves in a sliding mode, and the edges of the steel balls (9) are in contact with the steel ball (3).

2. The reinforced rolling mill bearing of claim 1, wherein: two sealing covers (10) which are oppositely arranged are arranged in the guide rail groove (8) on the circumferential surface of the bearing outer ring (1) and the bearing inner ring (2) which are opposite to each other.

3. The reinforced rolling mill bearing of claim 1, wherein: the number of the steel balls (3) is multiple, and the steel balls (3) are uniformly arranged between the bearing outer ring (1) and the bearing inner ring (2).

4. The reinforced rolling mill bearing of claim 1, wherein: and the inner surface of the bearing outer ring (1), the outer surface of the bearing inner ring (2) and the retainer (4) are coated with grease layers.

5. The reinforced rolling mill bearing of claim 1, wherein: the jackscrew (6) is in threaded connection with the jackscrew hole (7).

6. The reinforced rolling mill bearing of claim 1, wherein: and the outer circumferential surface of the bearing outer ring (1) is provided with a positioning groove (11).