CN206246539U

CN206246539U - A kind of double groove upper roller bearing sealing structures of frame

Info

Publication number: CN206246539U
Application number: CN201621327593.3U
Authority: CN
Inventors: 陆悦; 顾建东
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-12-06
Filing date: 2016-12-06
Publication date: 2017-06-13
Anticipated expiration: 2026-12-06

Abstract

The utility model is related to a kind of double groove upper roller bearing sealing structures of frame.Dust ring is changed to sealing ring, sealing ring external diameter is fixed on the notch of bearing case, using interference fit, inner side lip is sealed with axle using small―gap suture, when added grease is reached at the lip of inner side, lip is pressurized to stretch and forms interference fit with axle, grease is outflowed；Outside lip is coordinated with axle using slight interference amount, forms contact seal, the dirts such as dust is cannot be introduced into bearing.By changing the fixed form of dust ring, it is achieved thereby that a kind of method of Novel rapid, goes to assemble the upper roller bearing of double groove structures.

Description

A kind of double groove upper roller bearing sealing structures of frame

Technical field

The utility model is related to a kind of new assembling of the Novel sealing ring of upper roller bearing and double groove upper roller bearings Method.

Background technology

Frame upper roller bearing is the important drafting unit on spinning machine, and drawing-off is played to yarn, and it is used in spun yarn Had a large capacity and a wide range on machine, antiwhip and uniformity, the quality such as dry to the bar of yarn have a significant impact.By professional standard FZ/ One of T92103-2003 requirements, bearing quality index, clearance tolerance are 0.003 ~ 0.03.

Traditional upper roller bearing is the ditch structure type of one hole of biserial one, as shown in figure 1, bearing outer ring is the ditch knot of a hole one Structure.Steel ball is arranged in mandrel R grooves and bearing outer ring ditch on the outside of bearing, and inner side steel ball is arranged on mandrel inner side R and bearing outer ring Kong Zhong.Traditional upper roller bearing sealing structure is I-shaped steel dust ring, and dust ring internal diameter is fixed on mandrel, with mandrel system Interference fit, clearance seal is formed between the I-shaped external diameter of dust ring and hole.Due to above structure type, bearing has following lacking Point：1. bearing failure form is inner side（The row of hole one）Wear out failure, 2. bearing oil leak at dust ring occurs in oiling fat Fat phenomenon.

(patent is terminated the upper roller bearing of Chinese patent 92213968.7 for 96 years）Spinning with 200420023328.7 Machine roller bearing（The patent is terminated for 2007）Successively propose that double groove structure, i.e. bearing bearing outer rings are double ditch structures, it is double Row steel ball is installed in mandrel R grooves and bearing outer ring R grooves, and because the structure of its dust ring is limited, one row's steel ball of bearing inner side is protected Holding frame must install from lateral direction, so its assembling is difficult, it is difficult to realize that spread is used.

Chinese patent ZL2009102648516 discloses a kind of double groove upper roller bearing assembly technologies in frame outer ring, prevents Konisphere is fixed on mandrel, is caused the retainer of one row of inner side and must be installed from outside, so assembly difficulty is larger.

Utility model content

For above-mentioned technical problem, the utility model proposes a kind of double groove upper roller bearing sealing structures of frame, this is close Seal structure can realize the double groove upper roller bearings of high efficiency assembling, oil-proof fat when upper roller bearing refuels.

In order to realize above-mentioned technical purpose, technical problem of the present utility model is achieved through the following technical solutions：

A kind of double groove upper roller bearing sealing structures of frame, including mandrel, bearing outer ring and it is arranged at the mandrel Sealing ring between bearing outer ring, the inner ring of the sealing ring has two sealing lips, is respectively inner seal lip and outside Sealing lip, clearance seal between the inner seal lip and mandrel；Interference fit between outboard seal lip and mandrel, forms contact Formula is sealed；The outer wall of sealing ring is fixed on the hole wall of bearing outer ring.

The sealing ring includes that rigid backbone and cladding are connected to the rubber outer outside the rigid backbone.

The centre of the rigid backbone has bending part, and it is misaligned that the bending part makes the rigid backbone form axis Two parts, are respectively the first skeleton part and the second skeleton part, the outside cladding connection rubber of the first skeleton part It is fixed on after outer layer in the groove on bearing outer ring hole wall；Shape after the outside cladding connection rubber outer of the second skeleton part Into the inner seal lip and outboard seal lip.

Outer radius on sealing ring near sealing ring are provided with elastic R grooves.

The groove footpath of the elastic R grooves is 1-2mm.

A kind of beneficial effect of the double groove upper roller bearing sealing structures of frame of the utility model is：

Firstth, dust ring is changed to sealing ring, sealing ring is designed as the sealing structure of steel plate frame and building rubber compound, is sealed Circle is provided with steel plate frame, and sealing ring is provided with elastic R grooves near outer radius, and inner radius are provided with two-side sealing lip.Outside sealing ring Footpath is fixed on the notch of bearing outer ring, and using interference fit, inner side lip is sealed with axle using small―gap suture, when the grease for refueling Reach at the lip of inner side, lip is pressurized to stretch and forms interference fit with axle, grease is outflowed.Outside lip is with axle using small The magnitude of interference coordinates, and forms contact seal, the dirts such as dust is cannot be introduced into bearing.

Secondth, sealing ring can be moved on mandrel, and it is fixed on bearing outer ring.Realize first to load from both sides and keep Frame, loads sealing ring afterwards.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model sealing ring；

Wherein, 1 is mandrel；2 is bearing outer ring；510 is elasticity R grooves；521 is inner seal lip for 521；522 is outside Sealing lip；531 is the first skeleton part；532 is the second skeleton part.

Specific embodiment

The double groove upper roller bearing assembly technologies of frame of the invention are made further in detail with reference to Figure of description Explanation.

As shown in figure 1, the inner ring of the sealing ring 5 has two sealing lips, it is respectively that inner seal lip 521 and outside are close Envelope lip 522, clearance seal between the inner seal lip 521 and mandrel 1；Interference is matched somebody with somebody between outboard seal lip 522 and mandrel 1 Close, form contact seal；The outer wall of sealing ring 5 is fixed on the hole wall of bearing outer ring 2.The sealing ring 5 includes rigid bone Frame 51 and rubber outer 52.

Used as the further preferred scheme of technical solutions of the utility model, the centre of the rigid backbone has bending part, The bending part makes the rigid backbone form two misaligned parts of axis, is respectively the first skeleton part 531 and second Skeleton part 532, is fixed on bearing outer ring hole wall after the outside cladding connection rubber outer of the first skeleton part 531 In groove；The inner seal lip 521 and outside are formed after the outside cladding connection rubber outer of the second skeleton part 532 Sealing lip 522；

As the further preferred scheme of the utility model, in order that sealing ring is more smoothly placed into bearing outer ring 2 Between mandrel 1, the outer radius on sealing ring near sealing ring are provided with elastic R grooves 510.Preferably, the elastic R grooves 510 Groove footpath is 1-2mm.

Claims

1. double groove upper roller bearing sealing structures of a kind of frame, it is characterised in that including mandrel, bearing outer ring and be arranged at Sealing ring between the mandrel and bearing outer ring, the inner ring of the sealing ring has two sealing lips, is respectively inner seal Lip and outboard seal lip, clearance seal between the inner seal lip and mandrel；Interference fit between outboard seal lip and mandrel, Form contact seal；The outer wall of sealing ring is fixed on the hole wall of bearing outer ring.

2. double groove upper roller bearing sealing structures of frame according to claim 1, it is characterised in that the sealing ring includes Rigid backbone and cladding are connected to the rubber outer outside the rigid backbone.

3. double groove upper roller bearing sealing structures of frame according to claim 2, it is characterised in that the rigid backbone Centre has bending part, and the bending part makes the rigid backbone form two misaligned parts of axis, is respectively the first bone Frame part and the second skeleton part, bearing cups bores are fixed on after the outside cladding connection rubber outer of the first skeleton part In groove on wall；The inner seal lip and outside are formed after the outside cladding connection rubber outer of the second skeleton part Sealing lip.

4. double groove upper roller bearing sealing structures of frame according to claim 2, it is characterised in that near close on sealing ring The outer radius of seal are provided with elastic R grooves.

5. double groove upper roller bearing sealing structures of frame according to claim 4, it is characterised in that the elastic R grooves Groove footpath is 1-2mm.