CN214465579U

CN214465579U - Four-roller cold rolling mill backing roll diameter bearing

Info

Publication number: CN214465579U
Application number: CN202120588736.0U
Authority: CN
Inventors: 崔中雪; 陈彦仲; 杨永亮; 郜俊光
Original assignee: HEBEI YINHE ROLLING MILL BEARING CO Ltd
Current assignee: HEBEI YINHE ROLLING MILL BEARING CO Ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-10-22
Anticipated expiration: 2031-03-23

Abstract

The utility model discloses a four-roller cold rolling mill backing roll roller footpath bearing, including outer lane, inner circle, holder and roller, a plurality of rollers pass through the holder and locate uniformly between outer lane, the inner circle, its characterized in that: the circumference equipartition of holder has a plurality of fenestras that are used for placing the roller, is the lintel between two adjacent fenestras, and the lintel is the narrow symmetrical structure in wide both sides in middle part, and the middle part of lintel outwards bulges and forms the sticking department, and the sticking department passes through the slope of bending with the lintel and is connected, and the periphery side of sticking department is equipped with the lock point that is used for the lock roller. The utility model discloses simple structure is firm, when guaranteeing the mechanical properties of bearing, save material weight reduction improves bearing running speed and grease evenly distributed to the life of extension holder.

Description

Four-roller cold rolling mill backing roll diameter bearing

Technical Field

The utility model relates to a bearing technical field especially relates to a four-roller cold rolling mill backing roll roller footpath bearing.

Background

The bearing used on the supporting roller of the cold-rolled strip steel, namely the FCD82112400 bearing produced by our factory, has two structures in the inner retainer of the bearing, one is riveting the end cover and the cylinder of the retainer, and the other is welding. Because the load born by the bearing is large in the rolling process, the retainer only guides the rolling body to move under the theoretical or normal use condition, and does not bear the increased load. However, as the yield of users is gradually improved, the bearing box has limited space, the load borne by the bearing is increased, the rivet head is frequently dropped, the bearing is damaged, and the use is influenced.

The material of the bearing steel is also graded, if the bearing steel with high quality is used, the cost for producing the bearing is inevitably increased, and in order to meet the production requirement, only the improvement can be carried out on the bearing material and the internal structure on the premise of ensuring that the cost is not increased and the external dimension is not changed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a four-roller cold rolling mill backing roll roller footpath bearing solves bearing structure insecure, the short problem of life.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model relates to a four-roller cold rolling mill backing roll roller footpath bearing, including outer lane 1, inner circle 2, holder 3 and roller 4, between a plurality of rollers 4 pass through holder 3 even locating outer lane 1, inner circle 2, its characterized in that: the retainer 3 is circumferentially and uniformly provided with a plurality of lintels 5, each lintel 5 is of a symmetrical structure with a wide middle part and narrow two sides, the middle parts of the lintels 5 protrude outwards to form locking parts 501, the locking parts 501 are obliquely connected with the lintels 5 through bends 502, and window holes 6 for placing rollers 4 are formed between every two adjacent lintels 5.

Further, the lock portion 501 is square, and a lock point 503 for engaging the roller 4 is provided on the outer peripheral side of the lock portion 501.

Further, the roller 4 is cylindrical and the window 6 catches the roller 4 via the locking point 503.

Further, the inclination angle between the bend 502 and the locking portion 501 is set at 155 ° to 160 °.

Furthermore, the retainer 3 is an integral structure formed by stamping a steel plate with the thickness of 8 mm.

Further, the bend 502 is formed by die stamping the lintel 5.

Compared with the prior art, the utility model discloses a beneficial technological effect:

the utility model discloses the function that antifriction bearing bore inertial force load has been realized to the lintel in outwards leading-in outer lane's raceway reliably with the tangential force of roller, has had slide bearing's performance simultaneously concurrently, can realize with lower coefficient of friction operation. Meanwhile, the widened locking part 501 is convexly arranged, so that on one hand, the contact area between the roller and grease is increased, and lubrication can be better provided for the operation of the roller; on the other hand, the bearing can save materials, reduce the weight of the product and is beneficial to improving the running speed of the bearing.

The utility model discloses the sticking department can prevent adjacent roller and contact each other, has avoided frictional emergence, reduces the area of contact of lintel and roller simultaneously to through fenestra locking roller, the impact energy of roller can be absorbed in the square design of widening of sticking department, noise abatement.

To sum up, the utility model discloses simple structure is firm, when guaranteeing the mechanical properties of bearing, and save material weight reduction improves bearing running speed and grease evenly distributed to the life of extension holder.

Drawings

The present invention will be further explained with reference to the following description of the drawings.

FIG. 1 is a schematic structural view of a four-roller cold rolling mill back-up roll diameter bearing of the utility model;

fig. 2 is a schematic structural view of the retainer of the present invention;

fig. 3 is a schematic structural view of the lintel of the present invention;

description of reference numerals: 1. an outer ring; 2. an inner ring; 3. a holder; 4. a roller; 5. a lintel; 501. a locking portion; 502. bending; 503. locking points; 6. a window aperture.

Detailed Description

As shown in fig. 1 and 2, the four-roll cold rolling mill support roll diameter bearing comprises an outer ring 1, an inner ring 2, a retainer 3 and rollers 4, wherein the rollers 4 are uniformly arranged between the outer ring 1 and the inner ring 2 through the retainer 3, a plurality of lintels 5 are uniformly distributed in the circumferential direction of the retainer 3, the lintels 5 are of a symmetrical structure with a wide middle part and narrow two sides, the middle parts of the lintels 5 protrude outwards to form a locking part 501, the locking part 501 is obliquely connected with the lintels 5 through a bend 502, and a window hole 6 for placing the rollers 4 is formed between two adjacent lintels 5.

In the present embodiment, the lintel 5 reliably guides the tangential force of the roller 4 outward into the raceway of the outer ring 1, and realizes the function of the rolling bearing of receiving the inertial force load, and also has the performance of the sliding bearing, and can realize the operation with a low friction coefficient. Meanwhile, the widened locking part 501 is convexly arranged, so that on one hand, the contact area between the roller and grease is increased, and lubrication can be better provided for the operation of the roller; on the other hand, the bearing can save materials, reduce the weight of the product and is beneficial to improving the running speed of the bearing.

Specifically, referring to fig. 2 and 3, the lock portion 501 has a square shape, lock points 503 for engaging the roller 4 are provided on the outer peripheral side of the lock portion 501, and the lock points 503 have four corners of the square shape. The roller 4 is cylindrical and the window 6 captures the roller 4 by means of a locking point 503.

The locking part 501 of the embodiment can prevent adjacent rollers 4 from contacting with each other, so that friction is avoided, the contact area between the lintel and the roller is reduced, the roller is locked by the window hole 6, and the impact energy of the roller can be absorbed by the square widened design of the locking part 501, so that noise is reduced.

Specifically, referring to fig. 2 and 3, bend 502 is disposed at 155-160 ° from lock 501.

The mechanical property of the retainer can be improved, the lintel shrinkage deformation can be effectively reduced, the dimensional precision of the retainer is guaranteed, the internal defect is avoided, the friction between the roller 4 and the lintel 5 is greatly reduced due to the arrangement of the angle, the grease passing area is also increased, the working lubrication condition of the bearing is effectively improved, the running noise of the bearing is reduced, the flexible reliability of running is improved, and the service lives of the bearing and the bearing retainer are prolonged.

Specifically, referring to fig. 2 and 3, the retainer 3 is an integral structure stamped from a steel plate having a thickness of 8 mm. Bend 502 is formed by die stamping for lintel 5.

In the embodiment, the retainer 3 is formed by stamping a steel plate, and particularly the lintel is provided with the bend 502 and the wider locking part 501, so that the retainer has good elasticity, can well absorb the impact energy of the roller and reduce the noise in the bearing operation. The retainer is an integral structure, the problem of falling rivets does not exist, the cost is low, the structure is firm, and meanwhile, the retainer can also be in welded connection.

The utility model discloses a use as follows:

firstly, the retainer 3 is made of 8mm high-quality carbon steel, the retainer is formed by stamping and is integrally formed, the middle part of the lintel 5 is wide and two sides are narrow, the positions, close to the two sides, of the lintel 5 are bent from inside to outside by 25-30 degrees by stamping of a die to form a bend 502, the middle part of the lintel 5 protrudes to form a locking part 501, the roller 4 is externally mounted, locking points 503 covering the roller 4 are arranged on the outer peripheral side of the locking part 501, two lintels 5 surround a window hole 6, each window hole 6 is provided with four locking points, the roller 4 is knocked into the window hole 6 by a hammer, and then the outer ring 1 and the inner ring 2 are sequentially mounted.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a four high cold rolling mill backing roll roller footpath bearing, includes outer lane (1), inner circle (2), holder (3) and roller (4), and is a plurality of roller (4) pass through holder (3) even locating outer lane (1) between inner circle (2), its characterized in that: the roller cage is characterized in that a plurality of lintels (5) are uniformly distributed in the circumferential direction of the cage (3), the lintels (5) are of a symmetrical structure with a wide middle part and narrow two sides, the middle part of the lintel (5) protrudes outwards to form a locking part (501), the locking part (501) is obliquely connected with the lintel (5) through a bend (502), and a window hole (6) for placing a roller (4) is formed between every two adjacent lintels (5).

2. The four-high cold rolling mill backing roll diameter bearing of claim 1, characterized in that: the locking part (501) is square, and a locking point (503) for buckling the roller (4) is arranged on the outer periphery side of the locking part (501).

3. The four-high cold rolling mill backing roll diameter bearing of claim 2, characterized in that: the roller (4) is cylindrical, and the window hole (6) clamps the roller (4) through the locking point (503).

4. The four-high cold rolling mill backing roll diameter bearing of claim 1, characterized in that: the inclination angle between the bend (502) and the locking part (501) is set to be 155-160 degrees.

5. The four-high cold rolling mill backing roll diameter bearing of claim 1, characterized in that: the retainer (3) is of an integrated structure formed by stamping a steel plate with the thickness of 8 mm.

6. The four-high cold rolling mill backing roll diameter bearing of claim 1, characterized in that: the bending (502) is formed by stamping the lintel (5) through a die.