CN2741994Y

CN2741994Y - Top roller bearing of spinning machine double roll path

Info

Publication number: CN2741994Y
Application number: CN 200420081198
Authority: CN
Inventors: 陈兆南
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-22
Filing date: 2004-07-22
Publication date: 2005-11-23
Anticipated expiration: 2014-07-22

Abstract

The utility model relates to a double roll path upper roller bearing of a spinning machine, which comprises a mandrel arranged on a cradle of the spinning machine, a bearing shell and a rubber tube, wherein the bearing shell and the rubber tube are symmetrically arranged on both ends of the mandrel. Double roll paths composed of R circular slots are arranged at the mandrel and an inner hole of the bearing shell, and the insides of the double roll paths are provided with steel balls which are separated and positioned by a retainer of the bearing. The front end of the bearing is tightly matched with an end cap, and a dustproof and leak-proof element having a totally enclosed structure is arranged between the rear end of the bearing and the mandrel. The dustproof and leak-proof element can be formed by the combination of an H-shaped dustproof ring and an O-shaped oil-proof sealing ring or can be a totally enclosed dustproof ring tightly matched in the bearing shell and a ring groove of the mandrel. The dustproof and leak-proof element of the utility model has the advantages of preventing yarn contamination caused by the overflow of lubricating oil, reducing the trouble of clearing up dirty oil for the operator, preventing flower clothes generated during the stretching and dragging of yarns from entering the inner cavity of the bearing simultaneously, ensuring the rotating flexibility and stationarity of the bearing, improving the uniformity of yarns and raising and stabilizing the quality of yarns.

Description

The two raceway upper roller bearings of frame

Technical field

The utility model relates to the frame special bearing, in particular for two raceway upper roller bearings of drawing-off sliver.

Background technology

Widely used upper roller bearing on the present domestic spinning machine, be to play the drawing-off that influences yarn, the critical component of traction quality when spinning machine spinning running, the thickness evenness of yarn evenness is decided by it, and therefore, not only Rational structure, the workmanship to bearing has strict demand, by the industry ministry standard, require end-play to be no more than 0.03 millimeter, require to have very high sealing simultaneously, one prevents that lubricating oil from dissolving outside spill and leakage, avoid polluting yarn, alleviate operative employee's the work of removing contamination; Two prevent that yarn colorful clothes from entering bearing cavity and stopping up steel ball rolling channel and cause the flexibility of bearing operation to be obstructed, and then influence is to the quality of yarn drawing-off, traction.The upper roller bearing of prior art is by the mandrel that is installed on the frame reel cage, the sebific duct that the cartridge housing that mandrel two ends symmetry is installed is outer with being enclosed within cartridge housing, be provided with the steel ball of separating the location by retainer between two ends mandrel and the cartridge housing, this steel ball is improved to and is arranged in two raceways of being made up of the R circular groove of cartridge housing and mandrel, " upper roller bearing " (this patent was terminated in 96 years) as Chinese patent 92213968.7, what adopt is exactly two raceway structures, simultaneously with the dustproof leakproof element of rear end by originally successively by spacer, the wavy spring sheet, diaphragm seal, spacer ring, diaphragm seal, 6 compositions such as jump ring, because dustproof leak-proof measure still is not a full-closed structure, so dustproof leak preventing effect still is undesirable, the lubricating oil spill and leakage is unavoidable, colorful clothes also enters easily, remains to be further improved.

Summary of the invention

Technical problem to be solved in the utility model be to avoid the defective of prior art and a kind of dustproof anti-leakage effect be provided, help improving the yarn drawing-off, two raceway upper roller bearings of frame that the no gap of traction quality cooperates.

Technical problem of the present utility model solves by the following technical programs: the two raceway upper roller bearings of a kind of frame, it comprises the mandrel that is installed on the frame reel cage, be arranged on the cartridge housing rubber tube outer that mandrel two ends symmetry is installed with being sleeved on cartridge housing, before being installed with between described cartridge housing and the mandrel, back two rows are separated the steel ball of location by retainer, this steel ball is arranged in two raceways of being made up of the R circular groove of cartridge housing and mandrel, described cartridge housing front end is provided with the close-fitting end cap of doing the end sealing, be provided with dustproof leakproof element between rear end and the mandrel, it is characterized in that described dustproof leakproof element is " worker " font dust ring with the combination of " O " shape oil-resistant seal ring or does not have the gap and be engaged in totally-enclosed dust ring in cartridge housing and the mandrel annular groove.

Described steel ball is distributed in the retainer with 5～6.

Described cartridge housing both ends of the surface drift angle place is a fillet structure.

Compared with prior art, the utility model has adopted applied in any combination and the utilization no gap hermetically sealed dust ring scheme of " worker " font dust ring with " O " shape oil-resistant seal ring, make dustproof leak preventing effect more remarkable, it is excessive and cause the yarn contamination phenomenon and reduced the operative employee for removing the trouble that sump oil brings at first to have alleviated lubricating oil, facts have proved if inject senior aero oil, but bearing non-refuelling and operate as normal in 2～3 years, illustrate that the spill and leakage phenomenon is rare, help that textile enterprise reduces supplies consumption and the reduction ton yarn production cost that brings; Secondly, make yarn be difficult to enter bearing cavity, guarantee that bearing rotates flexibility and stationarity, reduce the bearing circular runout, improve yarn evenness, thereby improve and the stable yarn line mass at the colorful clothes that drawing-off, distraction procedure produce.

Description of drawings

Fig. 1 is the utility model structural representation (scheme 1 a dustproof leakproof element).

Fig. 2 is scheme 2 dustproof leakproof component structure figure.

The specific embodiment

In conjunction with above-mentioned accompanying drawing embodiment the utility model is described in detail again.

Shown in Fig. 1-2, the two raceway upper roller bearings of frame have a mandrel 5 that is installed on the frame reel cage, mandrel two-end structure symmetry, before all having, back two row R circular grooves, before cartridge housing 2 endoporus that are installed in the mandrel two ends have equally, back two row R circular grooves, the size of circular groove R is decided on steel ball 3 diameters, the steel ball size optical axis holds size and decides, the circular groove R of present embodiment gets 2～2.5 millimeters, groove depth is got 0.4～0.43 millimeter, this circular groove form steel ball is installed can increase contact area, evenly stressed, improve two raceway structures of oil storage performance, 5～6 of steel balls in two raceways are evenly separated the location by retainer 8.Cartridge housing 2 outer round surface are processed with some grooves 6, are set with the rubber tube (not shown), make rubber tube have adhesive force preferably.

Cartridge housing 2 front ends are provided with the end cap 1 of doing the end sealing, and this end cap close-fitting is pressed into cartridge housing, is processed with 4 millimeters of through hole Φ 3～Φ on the end cap, and for exhaust, oiling, dustproof usefulness, the through hole oral area is bell mouth shape, is sealed by butter.Be provided with dustproof leakproof element between rear end and the mandrel, the dustproof leakproof element of scheme 1 should be made by nitrile rubber by " O " shape oil-resistant seal ring by the dust ring 4 and " O " shape oil-resistant seal ring 7 applied in any combination that are located in this dust ring of " worker " font.

The dustproof leakproof element of scheme 2 is that no gap is engaged in the totally-enclosed dust ring 10 in cartridge housing 2 and the mandrel annular groove 11, make by rubber or plastics, this dust ring and cartridge housing are press-fitted and form no gap, can matched in clearance with the mandrel annular groove, be convenient to assembling, the dustproof leakproof element cost price of this programme is very low, as long as each is 3～4 minutes, but increase the processing cost of mandrel annular groove, and the dustproof leakproof element of scheme 1 want each 1 jiao 6 minutes, employing scheme 2 can be factory and reduces cost.

The dustproof leakproof element of scheme 1 and scheme 2 can not only prevent the outside spill and leakage of the lubricating oil that dissolves in the bearing, can prevent that the colorful clothes that the outside yarn produces from entering bearing cavity simultaneously in the drawing-off traction, for good working environment is created in the flexible rotation of bearing.

The utility model is processed into fillet R2 with the drift angle place, two ends 9 of cartridge housing 2, is convenient to the aluminium bushing pipe and the rubber tube of suit pressure injection one.

Claims

1, the two raceway upper roller bearings of a kind of frame, it comprises the mandrel (5) that is installed on the frame reel cage, be arranged on the cartridge housing (2) of mandrel two ends symmetry installation and be sleeved on the outer rubber tube of cartridge housing, before being installed with between described cartridge housing (2) and the mandrel (5), back two rows are separated the steel ball (3) of location by retainer (8), this steel ball is arranged in two raceways of being made up of the R circular groove of cartridge housing and mandrel, described cartridge housing (2) front end is provided with the close-fitting end cap (1) of doing the end sealing, be provided with dustproof leakproof element between rear end and the mandrel (5), it is characterized in that described dustproof leakproof element is " worker " font dust ring (4) with the combination of " O " shape oil-resistant seal ring (7) or does not have the gap and be engaged in totally-enclosed dust ring (10) in cartridge housing (2) and the mandrel annular groove (11).

2, the two raceway upper roller bearings of frame according to claim 1 is characterized in that described steel ball (3) is distributed in the retainer (8) with 5～6.

3, the two raceway upper roller bearings of frame according to claim 1 is characterized in that drift angle places, described cartridge housing (2) two ends (9) are fillet structure.