CN2177122Y

CN2177122Y - E shape holding frame short stress line rolling mill bearing

Info

Publication number: CN2177122Y
Application number: CN 93229816
Authority: CN
Inventors: 陈振明; 申庸; 李景荣; 杨福民
Original assignee: ANSHAN CITY ROLLING MILL BEARING FACTORY
Current assignee: ANSHAN CITY ROLLING MILL BEARING FACTORY
Priority date: 1993-11-30
Filing date: 1993-11-30
Publication date: 1994-09-14
Anticipated expiration: 2003-11-30

Abstract

The utility model relates to an E-shaped holding frame short stress wire rolling machine bearing, which is a special bearing for matching with a short stress wire rolling machine, which is composed of two outer rings, an inner ring, four E-shaped cages and four rows of rolling bodies. The external layer of the bearing is an outer ring with a flange side by side; two small flanges and a center rib are arranged on the outer ring; the two sides of the center rib are provided with two rolling paths; the center is the E-shaped cage and the rolling bodies; the inner layer is the cylindrical inner ring. The utility model has the advantages of good processing, good manufacturability, uniform stress for rolling bodies, flexible rotation, no restriction and convenient assembly and disassembly; service life can be prolonged by more than one time.

Description

E shape holding frame short stress line rolling mill bearing

The utility model E shape retainer short stress path rolling mill bearing is to be the supporting special bearing of short stress path rolling mill.

At present both at home and abroad one of roller-mill bearing main structure form is the FC type, and it is made up of two outer rings, inner ring, two fork type retainers and four row rollers.This bearing radial load ability height adapts to higher mill speed and rolling accuracy.Bearing outside is assembled into an integral body with retainer and roller can not be separated, and same model bearing inner sleeve can exchange.At the bottom of the shared pocket hole, the pocket hole of retainer two sides roller, a retainer drives two row rollers.The fork type retainer needs to be installed for twice in course of working, and the coaxality of two sides pocket hole centre distance is difficult for guaranteeing in the course of working, certain deviation occurs, at this moment after retainer, roller and the lasso assembling, other strength phenomenon appears in roller unbalance stress, two row rollers, and bearing not only assembles difficulty like this, the roller rotation is also dumb, make roller and lasso produce the slide relative friction, bearing easily generates heat, and retainer is easily broken, early fatigue easily takes place and destroys the working life of having reduced bearing in the lasso raceway.

The purpose of this utility model is for overcoming the above-mentioned shortcoming of FC type roller-mill bearing, a kind of supporting E shape retainer short stress path rolling mill bearing of short stress path rolling mill that is being provided.

The utility model E shape retainer short stress path rolling mill bearing content Description:

The utility model E shape retainer short stress path rolling mill bearing is made up of two outer rings, inner ring, four E shape retainers and four row rolling elements, it is characterized in that: the outer ring of two band ribs of the outer Shi And row of bearing, two little ribs and a centre rib are arranged on the outer ring, the both sides of centre rib are two raceways, the centre is E shape retainer and rolling element, rolling element is packed into by the outer ring ball-loading hole in the E shape retainer pocket hole, is positioned in two slideways of outer ring, and nexine is the cylindrical shape inner ring; Retainer is the neutral position of former fork type retainer at the bottom of the shared pocket hole to be divided into two form two independently E shape retainers, retainer is alone at the bottom of pocket hole, two E shape retainers back-to-back, and are relative at the bottom of the pocket hole, are assembled into an integral body with outer ring, rolling element.

The utility model E shape retainer short stress path rolling mill bearing has two E shape retainers to drive row's rolling element separately in the back outer ring of assembling, two row's rolling elements do not restrict mutually in rotary course, and rolling element is stressed evenly, and rotation flexibly, easy to assembly, can improve working life more than one times.Retainer processing once is installed, and is easy to process, and there is not the problem of pocket hole, two sides coaxality difference in good manufacturability, reduces the reject rate of retainer, can reduce retainer cost 10%.

Embodiment:

Fig. 1 is an E shape retainer short stress path rolling mill bearing structure schematic representation

Among the figure: totally two of outer rings 1, be circular, at the two ends up and down of outer ring two little ribs are arranged, middle centre rib is two raceways in the both sides of centre rib, play supporting role; Inner ring 2 is cylindrical, rotates with rolling mill roll axle drive fit; Retainer 3 is the centre of former fork type retainer at the bottom of the shared pocket hole to be divided into two form two independently E shape ring-type solid cages, retainer is alone at the bottom of pocket hole, single face is axially equidistantly distributing rolling element pocket hole, isolate platform for one between the two pocket holes, isolate platform and be E shape with linking to each other at the bottom of the pocket hole, two E shape retainers back-to-back, relative at the bottom of the pocket hole, be assembled into an integral body with outer ring, rolling element 4, rolling element is packed into by the ball-loading hole on the outer ring in the pocket hole of retainer, is controlled in the outer ring raceway.Assembling has two E shape retainers in the back outer ring, drive row's rolling element separately, and two row's rolling elements do not restrict mutually in rotary course, and rolling element is stressed evenly, and rotation flexibly, and is easy to assembly.

Claims

1, a kind of E shape retainer short stress path rolling mill bearing, form by two outer rings, inner ring, four E shape retainers and four row rolling elements, it is characterized in that: the outer ring of two band ribs of the outer Shi And row of bearing, two little ribs and a centre rib are arranged on the outer ring, the both sides of centre rib are two raceways, the centre is E shape retainer and rolling element, and rolling element is packed into by the outer ring ball-loading hole and is positioned in two slideways of outer ring in the E shape retainer pocket hole, and nexine is the cylindrical shape inner ring.

2, E shape retainer short stress path rolling mill bearing according to claim 1, it is characterized in that said E shape retainer, be the neutral position of former fork type retainer at the bottom of the shared pocket hole to be divided into two form two independently E shape ring-type solid cages, retainer is alone at the bottom of pocket hole, single face is axially equidistantly distributing rolling element pocket hole, isolate platform for one between the two pocket holes, isolate platform and be E shape with linking to each other at the bottom of the pocket hole, two E shape retainers back-to-back, relative at the bottom of the pocket hole, with the outer ring, rolling element is assembled into an integral body, and two E shape retainers are arranged in the outer ring, drives row's rolling element separately.