CN201162827Y - Split type embedded special-shaped bush fitting - Google Patents
Split type embedded special-shaped bush fitting Download PDFInfo
- Publication number
- CN201162827Y CN201162827Y CNU2008200564339U CN200820056433U CN201162827Y CN 201162827 Y CN201162827 Y CN 201162827Y CN U2008200564339 U CNU2008200564339 U CN U2008200564339U CN 200820056433 U CN200820056433 U CN 200820056433U CN 201162827 Y CN201162827 Y CN 201162827Y
- Authority
- CN
- China
- Prior art keywords
- embedded
- split type
- wearing liner
- edge cover
- abnormity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Rolls And Other Rotary Bodies (AREA)
Abstract
The utility model provides a split typed embedded profiled bushing, particularly a split typed embedded profiled bushing of a cold mill system backup roll, formed by a split typed embedded profiled bushing and a wear-resistant bushing. the split typed embedded profiled bushing provided by the utility model consists of a split typed embedded profiled bushing and a wear-resistant bushing; wherein, the wear-resistant bushing is sleeved on the external circumference at the front end of the embedded profiled bushing; the end faces of the wear-resistant bushing and the embedded profiled bushing are leveled; an interference fit is adopted between a sealing ring and the embedded profiled bushing. The split typed embedded profiled bushing of the utility model solves the oil leakage problem of the embedded profiled bushing after being worn and makes up the disadvantage of hard repairing of the prior art.
Description
Technical field
The utility model relates to a kind of Split type embedded special-shaped bush fitting, particularly relates to a kind of Split type embedded special-shaped bush fitting of the cold rolling unit backing roll that is made up of embedded abnormity edge cover and anti-wearing liner.
Background technique
Cold rolling unit back-up roll is the visual plant of belt steel rolling, and the roll both sides are equipped with bearing support, and what the ordinary circumstance lower bearing adopted is the thin oil centralized lubrication.As shown in Figure 1, 2, the form of work-roll chock is: on the body of roll bearing at end seat end cap is arranged, one side of end cap and bearing support connect, an embedded abnormity edge cover outside of opposite side and body of roll end forms labyrinth sealing, between the interior circle of end cap and edge cover outer surface two seal rings side by side have been installed then, under the normal operation, by the sealing of these two seal rings, reach the effect that prevents the bearing lubrication oil leakage, and guarantee the safe and reliable operation of bearing.But usually, sealing ring and outer metallic surface can produce wearing and tearing during the roller operation, and although this metal surface, place has all been carried out surface hardening or other surface peenings, it is inevitable that its wearing and tearing remain.After the wearing and tearing, this place's nature will cause oil impregnate, leakage of oil.According to present actual conditions, the leakage of oil product is very big, has caused bigger economic loss; particularly owing to leak, also can cause the pollution of rolling mill compound, have influence on the quality of cold-rolled products; have to increase the replacing of roll and emulsion for this reason, increase downtime and maintenance cost.
The long-standing main cause of the problems referred to above is, because embedded abnormity edge cover is completely fixed on the axle, change relatively difficulty, particularly be subjected to the restriction of technical specifications with the replacing of fore bearing itself, adopt destructive the dismounting mostly, in this case, when bearing state is good, can only effectively repair and damage bearing with regard to the wearing and tearing needs " from roller " of sealing surface.Therefore, sometimes may adopt the method for brush plating to repair, but under this working condition, the brush plating reparation is very ineffective, life-span after the reparation can not be satisfied the cycle lie requirement of actual production to it, therefore, in the most of the time of producing, exist habitual seepage oil, not only increase oil consumption widely, increased cost, also pollute product and environment, increased workload of removing contamination and the difficulty that improves product surface quality, increased multinomial cost.This problem is perplexing the production scene for a long time.
Summary of the invention
The purpose of this utility model provides a kind of Split type embedded special-shaped bush fitting, and a kind of Split type embedded special-shaped bush fitting of the cold rolling unit backing roll that is made up of embedded abnormity edge cover and anti-wearing liner particularly is provided.Solve the problem of embedded abnormity edge cover wearing and tearing back leakage of oil, remedied the deficiency that prior art is difficult to repair.
A kind of Split type embedded special-shaped bush fitting of the present utility model, formed by embedded abnormity edge cover and anti-wearing liner, anti-wearing liner is enclosed within on the fore end outer circumference of embedded abnormity edge cover, anti-wearing liner and embedded abnormity edge cover end face, anti-wearing liner and embedded abnormity edge inner room adopt interference fit, and the preferred magnitude of interference is 0.05～0.15mm.
As preferred technical scheme:
Aforesaid a kind of split type embedded abnormity edge cover, wherein, even 2～4 the dismounting auxiliary holes that distribute of circumferencial direction on the described anti-wearing liner, described dismounting auxiliary hole diameter is φ 10～φ 20mm.
Aforesaid a kind of Split type embedded special-shaped bush fitting wherein, has dismounting fabrication hole or dismounting technology groove on the excircle of described anti-wearing liner.
Aforesaid a kind of Split type embedded special-shaped bush fitting, wherein, described anti-wearing liner can not need " postwelding " heat treated each metalloid material for what can realize replating, plasma spraying, laser cladding.
Aforesaid a kind of split type embedded abnormity edge cover, wherein, described anti-wearing liner adopts low-carbon (LC) metallic material and the low-carbon (LC) hard material that does not need to carry out " weldering " after-baking.
Aforesaid a kind of Split type embedded special-shaped bush fitting, its anti-wearing liner itself can be the consistent antifriction metal (AFM)s of material of realizing without built-up welding, surfacing and by heat treatment.
Aforesaid a kind of Split type embedded special-shaped bush fitting, wherein, described anti-wearing liner and embedded abnormity edge cover can be cylindrical fits, also can be Cone fits.
Aforesaid a kind of Split type embedded special-shaped bush fitting, wherein, described anti-wearing liner and embedded abnormity edge inner room can have sealing ring.
Aforesaid a kind of Split type embedded special-shaped bush fitting, wherein, described sealing ring can be arranged on anti-wearing liner and embedded abnormity edge cover radially between and/or between end face.
The mode of the reparation wearing and tearing of prior art is: effectively adopt under the condition of protective demolition at roller outboard bearing inner ring, former embedded abnormity edge cover is carried out the protectiveness dismounting and change according to similar method, or carry out in the roller reparation.But, because the need of work of this part, the end face that itself and the body of roll are fitted must have enough axial forces, to guarantee the effective efficiency of end seal face, simultaneously, between the inner ring of embedded abnormity edge cover and main shaft certain magnitude of interference must be arranged, to play axial location, to fix, prevent have path to exist between embedded abnormity edge cover internal surface and bearing.Like this, because the existence of matching allowance, just there is certain difficulty in embedded abnormity edge cover integral demounting, or even and if be from the roller reparation in the roller reparation, the reparation of whole integral body needs large-scale prosthetic appliance and large-scale working machine tool (about external diameter 1200mm) with processing, cost height, cycle are long, and installing and removing is very inconvenience.
A kind of Split type embedded special-shaped bush fitting of the present utility model, after adopting Split type structure, the zone of dismounting heating only is anti-wearing liner itself, can partly not be difficult for adding because of the whole big member of embedded abnormity edge cover the impact of thermal enlargement, causes operating difficulties and the cost repairing or change to increase.In addition, after anti-wearing liner and embedded abnormity edge cover separated, because of only heating close anti-wearing liner, heating time, how many heats short, embedded abnormity edge cover can not produce, temperature rise is quite limited, can total can both be met the demands in every respect because of the validity of the former end of temperatures involved O RunddichtringO yet.
The utility model makes it compared with prior art owing to adopted above technical scheme, has the following advantages and good effect:
1, the reparation of sealing surface can not be subjected to the restriction of large size bearing inner ring state, under bearing inner race situation in good condition, need to repair and to carry out at any time as long as the sealing surface state is bad, can therefore not cause the inefficacy of bearing inner race and the cost pressure and the supply of material pressure of increase spare part.
2, employing makes things convenient for and has reduced the mounting or dismounting that special-shaped edge overlaps after dividing body structure especially, in the past, at first be subjected to can not influencing by nondestructive demounting of outboard bearing inner ring, secondly, after the outboard bearing inner ring is removed, must a correct applying must be arranged with body of roll end because abnormity is inlayed cover, be bigger interference fit between edge cover and main shaft, is difficult to heating dismounting and heating and installs.And can directly heat close anti-wearing liner after the split, install and remove very convenient.
3, after the employing split structural type, lost efficacy as sealing surface, no matter be to repair or change new product all can not rely on main equipment, reparation or replacement cost are all very low, and effect then can be accomplished very satisfied.
4, adopt this utility model technology after, can thoroughly solve for a long time the waste of repairing oil impregnate that difficulty exists, a large amount of lubricating oil that leakage of oil causes because of sealing.
5, this model utility technology has thoroughly solved pollution and the infringement to product surface quality that causes because of seepage oil simultaneously, can improve surface quality of products largely, has improved product specification.
6, in the case, can also and reduce technological measure and the needed equipment of implementing process measure, personnel and the material cost that the pollution of product surface is needed cost for eliminating.
7, improve the environment of the equipment periphery that causes because of seepage, also reduced the every cost because safeguarding that environment produces simultaneously.
8, the enforcement by this utility model technology can reduce the equipment downtime requirement that therefore class problem may cause, thereby the normal operation production time of improving equipment comprises the servicing time and the cost that have reduced equipment simultaneously.
Description of drawings
Fig. 1 is the large-scale roller bearing and the body of roll end construction schematic representation of prior art
Fig. 2 is the local structure for amplifying schematic representation of Fig. 1
Fig. 3 is a kind of split type embedded abnormity edge cover mounting structure schematic representation of the present utility model
Fig. 4 is the local structure for amplifying schematic representation of Fig. 3 of the present utility model
Wherein 1 is that bearing outer ring 2 is that bearing support 3 is that bearing inner race 4 is that backbone sealing ring 5 is that embedded abnormity edge cover 6 is that O RunddichtringO 7 is that bearing shaft is that bearing (ball) cover 9 is that large-scale roller 10 is that bearing inner race dismounting equipment 11 is that anti-wearing liner 12 is embedded abnormity edge covers to baffle ring 8
Embodiment
Below in conjunction with the specific embodiment, further set forth the utility model patented technology.
Such as Fig. 3, shown in 4, it is a kind of Split type embedded special-shaped bush fitting of the present utility model, formed by embedded abnormity edge cover and anti-wearing liner, anti-wearing liner is enclosed within on the fore end outer circumference of embedded abnormity edge cover, anti-wearing liner and embedded abnormity edge cover end face, anti-wearing liner and embedded abnormity edge inner room adopt interference fit, the magnitude of interference is 0.10mm, the dismounting fabrication hole of even 4 the φ 10mm that distribute of circumferencial direction on the anti-wearing liner, anti-wearing liner is for can realize that replating does not need " postwelding " heat treated mild steel, and the inner hole sleeve of annular anti-wearing liner is at the periphery of embedded abnormity edge cover.What represent among the figure is a segment structure of large-scale cold rolling backing roll, the other end and represented part symmetry.Inlay cover 12 under the situation of one (being 5 among Fig. 1,2) at original anti-wearing liner 11 and embedded abnormity, because inboard and large-scale roller 9 main shafts
The place is about 0.20 interference fit, integrated type need be heated rapidly to during dismounting (at this moment, large-scale roller 9 temperature own can not have tangible rising) more than 100-120 ℃, just can make its disengaging.Under this requirement, because heating only is confined to illustrate the circle part, expanding then is subjected to integral diameter pining down of heating arrangement part not more than 1200, and operation is difficulty relatively.And the general tolerable temperature of the O RunddichtringO of part 6 also just about 120 ℃, is dealt with improperly and will be damaged the O RunddichtringO.
After the split, the temperature when anti-wearing liner 11 dismountings and installation can reduce greatly, and, or anti-wearing liner 11 making reparations own do not need large-scale prosthetic appliance and machining tool, it is convenient to make or repair, and cost is low, can thoroughly solve the problem that exists for a long time.
The location of installing in order to ensure (Split type embedded special-shaped bush fitting) of reserve part and fixing, can be by adjusting bearing shaft to baffle ring 7, realize the axial location of anti-wearing liners 11, embedded abnormity edge cover 12 and fixedly guarantee (in for whole situation, also can borrowing the power location fixing (or holding tightly after the anti-wearing liner cooling contraction) by the alternative frock of part 7 and part 3 through bearing inner ring 3.
Through evidence, the utility model has solved the problem of embedded abnormity edge cover wearing and tearing back leakage of oil really, has remedied the deficiency that prior art is difficult to repair.
More than be a preferred embodiment of the present utility model, still, protection domain of the present utility model is not limited thereto, and for the Split type embedded special-shaped bush fitting of structural similarity therewith same rights protection requirement is arranged all.
Claims (8)
1. Split type embedded special-shaped bush fitting, it is characterized in that: described Split type embedded special-shaped bush fitting is made up of embedded abnormity edge cover and anti-wearing liner, anti-wearing liner is enclosed within on the fore end outer circumference of embedded abnormity edge cover, anti-wearing liner and embedded abnormity edge cover end face, anti-wearing liner and embedded abnormity edge inner room adopt interference fit, and the preferred magnitude of interference is 0.05～0.15mm.
2. a kind of split type embedded special-shaped edge cover as claimed in claim 1 is characterized in that even 2～4 the semicircles dismounting auxiliary holes that distribute of inside circumference direction that described embedded abnormity is inlayed the anti-wearing liner that puts, and described dismounting auxiliary hole diameter is φ 10～φ 20mm.
3. a kind of Split type embedded special-shaped bush fitting as claimed in claim 1 is characterized in that on the excircle of described anti-wearing liner dismounting fabrication hole or dismounting technology groove being arranged.
4. a kind of split type embedded abnormity edge cover as claimed in claim 1 is characterized in that the material of the anti-wearing liner that described embedded abnormity edge puts can be for realizing all kinds of low-carbon (LC) metallic material of replating, plasma spraying, laser cladding.
5. a kind of split type embedded abnormity edge cover as claimed in claim 1 is characterized in that low-carbon (LC) metallic material and low-carbon (LC) hard material that described anti-wearing liner adopts does not need to carry out " weldering " after-baking.
6. a kind of Split type embedded special-shaped bush fitting as claimed in claim 1 is characterized in that described anti-wearing liner and embedded abnormity edge cover can be cylindrical fits, also can be Cone fit.
7. a kind of Split type embedded special-shaped bush fitting as claimed in claim 1 is characterized in that described anti-wearing liner and embedded abnormity edge inner room can have sealing ring.
8. such as claim 1 or 6 described a kind of Split type embedded special-shaped bush fittings, it is characterized in that described sealing ring can be arranged on anti-wearing liner and embedded abnormity edge cover radially between and/or between end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200564339U CN201162827Y (en) | 2008-03-20 | 2008-03-20 | Split type embedded special-shaped bush fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200564339U CN201162827Y (en) | 2008-03-20 | 2008-03-20 | Split type embedded special-shaped bush fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201162827Y true CN201162827Y (en) | 2008-12-10 |
Family
ID=40183764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200564339U Expired - Lifetime CN201162827Y (en) | 2008-03-20 | 2008-03-20 | Split type embedded special-shaped bush fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201162827Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757949A (en) * | 2018-08-10 | 2018-11-06 | 瓦房店爱国轴承研究院有限公司 | The combination assembled sealing structure of rolling mill roll bearing concora crush |
-
2008
- 2008-03-20 CN CNU2008200564339U patent/CN201162827Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757949A (en) * | 2018-08-10 | 2018-11-06 | 瓦房店爱国轴承研究院有限公司 | The combination assembled sealing structure of rolling mill roll bearing concora crush |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10859120B2 (en) | Tapered roller bearing and wind turbine | |
| CN204034783U (en) | Breaker roll | |
| US20120028773A1 (en) | Method For Repairing A Roller, And Roller | |
| US6623165B1 (en) | Bearing apparatus of sealing type | |
| CN106799566A (en) | Integrated low-noise automobile hub-bearing unit and preparation method thereof | |
| CN106424153B (en) | A kind of thin oil lubricating drum gear coupling of optimization | |
| CN105402412B (en) | For the detachable sealing ring component in rotary shaft | |
| CN201162827Y (en) | Split type embedded special-shaped bush fitting | |
| EA031111B1 (en) | Bearing assembly for supporting a journal of a crushing mill body (embodiments), and multidirectional hydraulic bearing for the journal | |
| RU2538441C2 (en) | Repair of worn-out bearing system | |
| CN203592280U (en) | Large-scale bearing lossless detaching device | |
| CN204338573U (en) | A kind of Combined vertical roll | |
| CN102078882A (en) | Bushing type forged steel carrying roller | |
| CN202238911U (en) | Repair structure for roller end joint of universal connecting shaft | |
| US20150114066A1 (en) | Installation part and method for the production thereof | |
| CN204828324U (en) | Bearing sleeve | |
| CN206028679U (en) | Fan -shaped section free roll rotary joint device of conticaster | |
| CN109454115B (en) | Recycling method of bearing inner ring matched with scrapped supporting roller | |
| CN106239027A (en) | Back lining bearing repairs tire | |
| CN206168951U (en) | Inner loop oil lubrication crowned -tooth coupling of be liable to change roller end subassembly | |
| CN206012206U (en) | A kind of automobile wheel edge assembly | |
| CN201871537U (en) | Embedding type forged steel supporting roll | |
| CN206366561U (en) | Mill preventing rubber water seal | |
| CN107906210A (en) | A kind of sealing device and encapsulating method | |
| CN101085656A (en) | On-line exchanging bearing construction method for cold rolling electroplating and continuous annealing set sinking roller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081210 |