CN203030631U - Installation structure of bearing block of roller of rolling mill rack - Google Patents
Installation structure of bearing block of roller of rolling mill rack Download PDFInfo
- Publication number
- CN203030631U CN203030631U CN 201220648829 CN201220648829U CN203030631U CN 203030631 U CN203030631 U CN 203030631U CN 201220648829 CN201220648829 CN 201220648829 CN 201220648829 U CN201220648829 U CN 201220648829U CN 203030631 U CN203030631 U CN 203030631U
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- CN
- China
- Prior art keywords
- bearing block
- bearing
- block
- base plate
- roller
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- 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 - Fee Related
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- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses an installation structure of a bearing block of a roller of a rolling mill rack. The installation structure of the bearing block of the roller of the rolling mill rack comprises a base plate arranged in a horizontal mode and a bearing block which is tightly attached on the upper surface of the base plate. A rectangle protrusion is arranged on the upper surface, right opposite to the center part of the bearing block, of the base plate. A rectangle groove is formed in the back surface of the bearing block and corresponds to the rectangle protrusion. The rectangle groove and the rectangle protrusion are matched in a clamping mode. The bearing block comprises a block body made of monomer casting nylon. A bearing mounting hole is formed in the block body. The bearing mounting hole is provided with a composite bush. The composite bush comprises a rubber sleeve and an embedded block made of polyurethane foaming plastic. A circular groove is formed in the rubber sleeve. The embedded block is embedded in the circular groove. Polyurethane sealant is filled between the embedded block and the circular groove. An aluminium alloy layer and a ceramic coating are arranged on the surface of the block body in sequence from inside to outside. The thickness of the ceramic coating reaches 0.2-0.3mm. The installation structure of the bearing block of the roller of the rolling mill rack can improve installation stability and production safety.
Description
Technical field
The utility model relates to the master of a kind of steel rolling mill large-sized rolling mills blooming mill breast roll, the mounting structure of driven axle bearing.
Background technology
Large-sized rolling mills blooming mill breast roll master, driven axle bearing, former mounting structure adopt and adopt 4 M36 * 250mm bolts to carry out fastening location between base plate and the bearing block for directly the bearing block bottom surface being fitted on the base plate.This bearing block mounting structure, because the influence of various shock loadings when being subjected to steel rolling for a long time, often cause the fastening bolt pretightning force to lose efficacy and become flexible, bearing block, roller and motor transmission center are offset, generation is beated or is moved radially, cause sliding bearing abrasion, roller journal wearing and tearing, the bolt bend fracture, accidents caused, influence is produced, necessary stop production to overhaul when serious is the bottleneck problem of restriction production direct motion.
The utility model content
Technical problem to be solved in the utility model is, provides a kind of and can satisfy requirement of strength, simultaneously the roll bearing seat mounting structure of the rolling-mill housing of in light weight, long service life.
For solving the problems of the technologies described above, the utility model provides following technical scheme: a kind of roll bearing seat mounting structure of rolling-mill housing, comprise horizontally disposed base plate and the bearing block that is closely set in plate upper surface, being connected with bolt between described base plate and the bearing block carries out fastening, described plate upper surface is provided with rectangular preiection over against the bearing block centre, the corresponding rectangular preiection in described bearing block bottom surface is provided with rectangular recess, and rectangular recess and described rectangular preiection form snap-fit;
Wherein, described bearing block comprises the pedestal of being made by monomer cast nylon, have bearing mounting hole on the pedestal, described bearing mounting hole place is provided with composite bush, described composite bush comprises rubber sleeve and the abaculus of being made by polyurethane foam plastics, be provided with cannelure in the described rubber sleeve, described abaculus embeds in the described cannelure, also is filled with polyurethane sealant between abaculus and the cannelure; Described pedestal surface outwards is provided with aluminium alloy layer, ceramic coating successively, and described thickness of ceramic coating reaches 0.2～0.3mm.
Monomer cast nylon is nylon material, is called monomer moulding casting nylon or MC nylon again, has reliable mechanical strength, and steel are compared, and monomer cast nylon is in light weight; Make pedestal by monomer cast nylon, in proof strength, can reduce the weight of whole gearbox device to a certain extent, be convenient to transportation.
Polyurethane foam plastics is called hard polyurethane foam again and belongs to hard material.Rubber sleeve is conventional lining, is flexible structure completely, lacks inner skeleton, rubber sleeve under traffic condition or motion (such as vibration) environment is big with the distortion that motion produces, and causes sealing effectiveness not good, the long-term use, the distortion that produces will be difficult to recover, and influence result of use and life-span; Composite bush in the utility model adds has abaculus as the hard inner frame, and abaculus embeds in the described cannelure, also be filled with polyurethane sealant (avoiding both gap affects sealing effectiveness) between abaculus and the cannelure, like this when keeping composite bush periphery flexibility, can play the purpose of better restriction composite bush bulk deformation amount, reach better sealing effectiveness, service life is also long like this.
Ceramic coating has stronger wear-resisting and anti-corrosion property energy forming on the aluminium alloy layer after differential arc oxidation method is handled, make the roll bearing seat mounting structure of the utility model rolling-mill housing can adapt to comparatively bad working environment, and long service life.
By to the force analysis of bearing block as can be known, cause the reason of breast roll plain bearing housing unstability to be: the bearing block fastening bolt is at normal operating condition, should play fastening effect, play the effect of bearing block location again, from the site observation situation, being difficult to play above two kinds of effects, is the main cause that causes the accident.
By above-mentioned analysis, the technical solution of the utility model is benchmark with the axial mounting center of breast roll, rectangular preiection of plate upper surface center planing vertically at bearing block, at rectangular recess that cooperates with it of bearing block bottom surface planing, carrying out concavo-convex cooperation installs, and then connect fastening with bolt, projection is born positioning action with cooperating of tongue, the shock loading that produces repeatedly about offsetting in the rolling process in the billet rolling, play the axial location effect, and bolt only works the effect of being fastenedly connected, and is not bearing positioning action.After the transformation, effectively avoided the bearing block unstability, the generation of the phenomenon that causes the accident.
In sum, than prior art, the roll bearing seat mounting structure of the utility model rolling-mill housing can improve the installation stable degree, improves production security.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of composite bush in the utility model;
Fig. 3 is the partial enlarged drawing of the utility model A.
The specific embodiment
As shown in Figure 1, a kind of roll bearing seat mounting structure of rolling-mill housing, comprise horizontally disposed base plate 1 and the bearing block 2 that is closely set in base plate 1 upper surface, being connected with bolt between described base plate 1 and the bearing block 2 carries out fastening, described base plate 1 upper surface is provided with rectangular preiection 3 over against bearing block 2 centres, the corresponding rectangular preiection 3 in described bearing block 2 bottom surfaces is provided with rectangular recess 4, and rectangular recess 4 forms snap-fit with described rectangular preiection 3;
Wherein, described bearing block 2 comprises the pedestal of being made by monomer cast nylon 5, have bearing mounting hole 6 on the pedestal 5, described bearing mounting hole 6 places are provided with composite bush 7, described composite bush 7 comprises rubber sleeve 10 and the abaculus of being made by polyurethane foam plastics 11, be provided with cannelure 12 in the described rubber sleeve 10, described abaculus 11 embeds in the described cannelure 12, also is filled with polyurethane sealant 13 between abaculus 11 and the cannelure 12; Described pedestal 5 surfaces outwards are provided with aluminium alloy layer 8, ceramic coating 9 successively, and described ceramic coating 9 thickness reach 0.2～0.3mm.
Above-described only is preferred embodiment of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these can not influence effect and practical applicability that the utility model is implemented.
Claims (1)
1. the roll bearing seat mounting structure of a rolling-mill housing, comprise horizontally disposed base plate and the bearing block that is closely set in plate upper surface, being connected with bolt between described base plate and the bearing block carries out fastening, described plate upper surface is provided with rectangular preiection over against the bearing block centre, the corresponding rectangular preiection in described bearing block bottom surface is provided with rectangular recess, and rectangular recess and described rectangular preiection form snap-fit;
Wherein, described bearing block comprises the pedestal of being made by monomer cast nylon, have bearing mounting hole on the pedestal, it is characterized in that: described bearing mounting hole place is provided with composite bush, described composite bush comprises rubber sleeve and the abaculus of being made by polyurethane foam plastics, be provided with cannelure in the described rubber sleeve, described abaculus embeds in the described cannelure, also is filled with polyurethane sealant between abaculus and the cannelure; Described pedestal surface outwards is provided with aluminium alloy layer, ceramic coating successively, and described thickness of ceramic coating reaches 0.2～0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220648829 CN203030631U (en) | 2012-11-30 | 2012-11-30 | Installation structure of bearing block of roller of rolling mill rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220648829 CN203030631U (en) | 2012-11-30 | 2012-11-30 | Installation structure of bearing block of roller of rolling mill rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203030631U true CN203030631U (en) | 2013-07-03 |
Family
ID=48682772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220648829 Expired - Fee Related CN203030631U (en) | 2012-11-30 | 2012-11-30 | Installation structure of bearing block of roller of rolling mill rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203030631U (en) |
-
2012
- 2012-11-30 CN CN 201220648829 patent/CN203030631U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20131130 |