CN1368608A

CN1368608A - Bearing of winder for high-speed spinning

Info

Publication number: CN1368608A
Application number: CN01105294A
Authority: CN
Inventors: 李忠春
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-01
Filing date: 2001-02-01
Publication date: 2002-09-11

Abstract

A ball bearing, which is used in frame head of high speed spinning take-up machine, includes outer race, inner race, steel ball and retained. The retainer is made of teflon with powers of graphite and bronze being mixed. Metal fender bracket is embedded in two end surfaces of the retainer, or an annulus of teflon and annular metal framework constitute the retainer, the metal framework is wrapped by annulus of teflon. Said structure eliminates the creep of teflon, brings high temperature-resistant and low-friction of teflon into play. Testing shows that with continuous running for 27000 hours, the invented ball bearing is still in intact condition.

Description

Bearing of winder for high-speed spinning

The invention provides a kind of bearing that is used for winder for high-speed spinning.

The bearing that is used for winder for high-speed spinning at present as employed 6204,6205 bearings of SW4SSD high-speed spinning coiling head (it calculates plane No. is 206201/1,465249/4), is made up of outer ring, inner ring, steel ball and retainer.Because this coiling head running speed reaches 10000 rev/mins, bearing holder material select for use and manufacturing process is a difficult problem always.The original retainer of producing (6204,6205) of domestic Bearing Factory adopts metallic material, friction ractor is big, can produce heat in running up, and makes the lubricant grease volatilization, about three months bearings of general use will burn out, and usually can bring disaster to motor-spin-coil; The retainer that adopts Reinforced Nylon to make this bearing was arranged afterwards both at home and abroad, because of its friction factor little, life-span can reach 12000 hours, its shortcoming is that heatproof is lower, it is no problem when the coiling head runs well,, in case wrapping head takes place around roller (referring to undesired wrapping wire), silk also can cause bearing to burn out with the roller frictional heating; Up-coiler head bearing performance the best that current American Baden company makes, high temperature resistantly reach 250 ℃, reach 24000 hours working life, its retainer adopts the bakelite manufacturing, cause bearing to be scrapped because bakelite can ftracture into fragment when running up,, domesticly also can't reach so the preparation process of bakelite retainer and Bearing Steel are required harsh especially, meet or exceed the up-coiler head bearing performance that U.S. Baden company makes, need to seek in addition the material of retainer.Teflon has the high temperature resistant advantage that reaches 250 ℃, friction factor is littler than nylon, the friction factor that is equivalent to ice, existing teflon is used for the example of low speed bearing, as the oilless bearing in the travelling crane of workshop, the Bearing Factory that has once soundd out the retainer of making high-speed bearing of it, but because of its material hardness is not enough, lack the elasticity and the rigidity of nylon, in manufacture process, be easy to creep, be difficult to reach certain precision, ready-made bearing is easily stuck and finally abandon.

Task of the present invention is to the retainer architecture advances and teflon is carried out modification, utilize teflon to make the bearing of winder for high-speed spinning, overcome the creep of teflon and bring into play the advantage of the high temperature resistant and low friction of teflon, improve the performance of this bearing.

For finishing above-mentioned task; the present invention proposes following technological scheme: the present invention can also adopt following technological scheme: a kind of bearing that is used for winder for high-speed spinning; have outer ring, inner ring, steel ball and retainer; it is characterized in that; retainer is made by a teflon of sneaking into graphite, bronze powder, and the retainer both ends of the surface accompany the metal coating frame.

For finishing above-mentioned same task, a kind of bearing that is used for winder for high-speed spinning has outer ring, inner ring, steel ball and retainer, it is characterized in that, retainer is made up of the ring body of a teflon and the metal frame of an annular, and metal frame is wrapped up by the ring body of teflon.

Be further described below in conjunction with embodiments of the invention and accompanying drawing thereof.

Fig. 1 is the plan view of the embodiment of the invention one.

Fig. 2 is an A-A sectional drawing among Fig. 1.

Fig. 3 is the retainer plan view of the embodiment of the invention two.

Fig. 4 is the side sectional view of Fig. 3.

Fig. 5 is a metal frame plan view in the retainer of the embodiment of the invention two.

Fig. 6 is the side sectional view of Fig. 5.

Consult Fig. 1, embodiment one shown in Figure 2; the bearing that is used for high-speed spinning coiling head; comprise outer ring 1, inner ring 2, steel ball 3 and retainer 4; the structure and the Placement of outer ring 1, inner ring 2, steel ball 3 are identical with known technology; it is characterized in that retainer 4 is made by a teflon of sneaking into graphite, bronze powder, both ends of the surface accompany fender bracket 5.The composition of described graphite, bronze powder, teflon than (weight) is: graphite 15～25, and bronze powder 15～25, teflon 50～70 adopts composition than (weight): graphite 20, bronze powder 20, teflon 60 usually.Fender bracket 5 adopts metallic material to make, and is bonding two metal coating framves 5 and retainer 4 both ends of the surface with strong adhesive earlier, passes between the two adjacent steel balls with rivet 6 and rivets.The inboard concave-convex surface of metal coating frame 5, the end face of retainer 4 is embedded in the groove of fender bracket 5.

The foregoing description one; graphite, bronze powder in teflon, have been added; increased its hardness; the metal coating frame that both ends of the surface accompany has then increased its rigidity; overcome original croop property; the advantage that has kept the high temperature resistant and low friction of teflon is adapted to the usage requirement of the bearing of high-speed spinning coiling head fully.

Fig. 3 is to embodiment two shown in Figure 6, a kind of bearing that is used for winder for high-speed spinning, have outer ring, inner ring, steel ball and retainer, it is characterized in that, retainer is made up of the ring body 9 of a teflon and the metal frame 8 of an annular, and metal frame 8 is wrapped up by the ring body 9 of teflon.Its working process is first punching out metal frame 8, adds teflon through mould again and makes retainer, at last itself and outer ring, inner ring, steel ball is assembled into bearing.

The foregoing description two, teflon does not need modification, it is to rely on to have certain elasticity and rigidity with the metal frame, has the advantage of the high temperature resistant and low friction of teflon again simultaneously, also is adapted to the usage requirement of the bearing of high-speed spinning coiling head fully.

From the above embodiments as can be seen the present invention overcome the shortcoming of the creep of teflon, make it can be used for the bearing of high-speed spinning coiling head, give full play to the advantage of the high temperature resistant and low friction of teflon, the performance of bearing improves a lot, through test, bearing of the present invention running was continuously pulled down still excellent after 27000 hours.

Claims

1, a kind of bearing that is used for winder for high-speed spinning has outer ring, inner ring, steel ball and retainer, it is characterized in that, retainer is made by a teflon of sneaking into graphite, bronze powder, and the retainer both ends of the surface accompany the metal coating frame.

2, the bearing that is used for winder for high-speed spinning according to claim 1 is characterized in that, the composition of described graphite, bronze powder, teflon than (weight) is: graphite 15～25, bronze powder 15～25, teflon 50～70.

3, the bearing that is used for winder for high-speed spinning according to claim 2 is characterized in that, the composition of described graphite, bronze powder, teflon than (weight) is: graphite 20, bronze powder 20, teflon 60.

4, the bearing that is used for winder for high-speed spinning according to claim 1 is characterized in that the inboard concave-convex surface of metal coating frame, and the end face of retainer is embedded in the groove of metal coating frame.

5, a kind of bearing that is used for winder for high-speed spinning, have outer ring, inner ring, steel ball and retainer, it is characterized in that retainer is made up of the ring body of a teflon and the metal frame of an annular, metal frame is wrapped up by the ring body of teflon.