CN102795534A - Thermal lift of bearing - Google Patents
Thermal lift of bearing Download PDFInfo
- Publication number
- CN102795534A CN102795534A CN2012103242817A CN201210324281A CN102795534A CN 102795534 A CN102795534 A CN 102795534A CN 2012103242817 A CN2012103242817 A CN 2012103242817A CN 201210324281 A CN201210324281 A CN 201210324281A CN 102795534 A CN102795534 A CN 102795534A
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- bearing
- hoisting
- block
- hot device
- main body
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Abstract
The invention relates to a thermal lift of a bearing. The thermal lift comprises a lift main body, wherein the lift main body consists of two semicircular annular metal rings movably connected together, a lifting lug is fixedly connected with the circumference of each metal ring, the bottom of each metal ring is provided with a supporting plate, a movable baffling block capable of flexing or detaching a clamping bearing is arranged above the side of the lifting lug, and a connection part of two semicircular annular metal rings is provided with an insulation strip for blocking off metal connection. The thermal lift of the bearing, disclosed by the invention, utilizes the insulation strip arranged between two semicircular annular metal rings to effectively block off closed vortex formed in the circumference direction, to effectively prevent the generation of a situation that the temperature of a bearing lift is very high along with the bearing when the bearing is electromagnetically heated, to reduce the operation risk of operators, and to prevent the generation of accidents such as scald and the like; and in addition, the product is of a simple structure, is convenient to mount and detach, and largely improves the assembly efficiency.
Description
Technical field
The present invention relates to a kind of lifting appliance of bearing, specifically relate to the hot device for hoisting that a kind of large-scale wind electricity set main shaft holds.
Background technology
The continuous breakthrough with wind generating technology of continually developing along with wind-power market; Present wind power generating set progressively develops to high-power direction; Improving 1.5MW, 2MW wind power generating set simultaneously, 3MW, 5MW and even 6MW wind power generating set also progressively begin extensive installation, generate electricity by way of merging two or more grid systems.Increase along with wind power generating set power; Requiring the transmission main shaft of wind power generating set to want can the bigger moment of torsion of transmission; In when design, it is bigger that the transmission main shaft diameter of wind power generating set will certainly become, thereby cause main shaft bearing " bigger " " thicker " that can become.
To be main shaft with the inner ring of the main bearing roller through main bearing form with outside race and even whole cabin the actual service condition of aerogenerator relatively rotates, and the moment of torsion that produces impeller passes to gear case, and then passes to electrical generator generation electric energy.And the connection mode of main shaft and main bearing is generally interference fit, and the circumferential static friction force that produces footpath pressure formation through the magnitude of interference between main shaft and bearing inner ring guarantees that main shaft and bearing inner ring rotate synchronously.When main shaft and main bearing assembling, adopt the mode of electromagnetism heating that bearing is heated to certain temperature usually, utilize the principle of expanding with heat and contract with cold; When the bearing inner ring aperture becomes big; Bearing installation to main shaft, when treating that bearing temperature cools down, bearing inner ring nature and main shaft locking.This fitting process is so-called " hot charging ".
Along with the increasing of bearing size, make also corresponding the increasing of temperature of bearing heat expansion distortion, for improving efficiency of assembling; Bearing hoister can carry out " hot charging " with bearing, and traditional bearing hoister is that each metal parts simply links together, and the suspender circumferencial direction forms the structure of closed eddy current; When bearing is heated; Suspender can be with the bearing temperature build-up, and the bearing hoister of high-temperature is a great potential safety hazard for the assembler, and safety misadventures such as scald very easily take place; Carry out lifting next time again if wait for the decline of bearing hoister temperature, can have a strong impact on efficiency of assembling though can reduce security risk.
Summary of the invention
To the defective of prior art, the purpose of this invention is to provide the hot device for hoisting of a kind of bearing simple in structure, that cost is low, maintenance workload is little.
For reaching above-mentioned purpose, the present invention has adopted following technical scheme:
The hot device for hoisting of a kind of bearing; Comprise the suspender main body, wherein, main body is made up of two semi-round ring shape beckets that are movably connected; Be connected with hanger on the becket circumference; The bottom surface is provided with supporting plate, and the side of hanger top is provided with scalable or detachably fixes the active block stop of bearing, and the junction of two semi-round ring shape beckets is equiped with blocking-up metal bonded assembly insulation strip.
The present invention also can further realize through following scheme:
The hot device for hoisting of described bearing, wherein, the two ends of the outer shroud of said semi-round ring shape becket all are welded with the hinge of alternative arrangement, and two beckets are movably connected through hinge axis and the hinge axis jam nut that passes hinge.
The hot device for hoisting of described bearing wherein, is equipped with insulating washer between the said adjacent hinge, and the hinge axis upper end is arranged with insulation sleeve.
The hot device for hoisting of described bearing, wherein, said insulating washer is the high temperature resistant nylon insulating washer.
The hot device for hoisting of described bearing, wherein, the two ends of said becket vertically are provided with inner groovy, and said insulation strip is embedded in the inner groovy.
The hot device for hoisting of described bearing, wherein, said hanger is more than three, equidistantly is welded on the main body circumference.
The hot device for hoisting of described bearing, wherein, said supporting plate is for being welded on the main body lower surface, and to the inboard plural arc that extends of main body, arc is equidistantly arranged.
The hot device for hoisting of described bearing; Wherein, said active block stop is made up of big block, little block and block lock bolt, and little block is fixedly mounted on the top of big block; Offer one " one " font chute on the big block, the block jam nut passes chute big block is locked at the hanger side.
The hot device for hoisting of described bearing, wherein, the width of said little block is equal to or slightly less than the thickness of hanger, and the front end of said big block " " font chute is less than or equal to the thickness of main body to the length of big block front end.
The hot device for hoisting of bearing of the present invention is connected with hanger on the main body circumference, is used to lift by crane bearing and suspender; The main body bottom surface is provided with supporting plate, is used to hold bearing, prevents its whereabouts; Main body adopts two two semi-round ring shape beckets that are movably connected; And in the junction of becket installing blocking-up metal bonded assembly insulation strip, blocked the intersubjective metal of bearing hoister and connected, blocked the circulation of eddy current; The ascending velocity of bearing hoister temperature when actv. has slowed down the electromagnetism heating has prevented that the operator from accidents such as scald taking place in operating process.
The hot device for hoisting of bearing of the present invention; The best hinge ways of connecting that adopts of the flexible connection of becket; Promptly be welded with hinge at the two ends of becket; Hinge alternative arrangement on two beckets connects through the hinge axis that passes all hinges, thereby realizes more easily the folding function of bearing main body through the Assembly &Disassembly hinge axis.Better is between adjacent hinge, to add the high temperature resistant nylon insulating washer; Overlap insulation sleeve in two ends up and down at hinge axis; Thereby form the eddy current path between two semicircular ring beckets of more effective blocking-up bearing hoister; Actv. has stoped bearing hoister to be rapidly heated with bearing main body, simultaneously, guarantees that insulating washer can realize the free folding of bearing hoister with following hinge axis, insulation sleeve.
Bearing hot charging suspender of the present invention adopts the active block stop of being made up of jointly big block, little block and block lock bolt, when bearing hangs in suspender; Unclamp and close the block lock bolt; Outwards push big block open along the suspender radial direction, hang bearing in the suspender then, back into original position to big block again; Locking block lock bolt; Can guarantee like this in the handling bearing process, can not make bearing failure, also reduce the risk that operating personal is injured by a crashing object simultaneously owing to unforeseen circumstancess such as rollover cause bearing to fall.
Description of drawings
Fig. 1 is the structural representation of the hot device for hoisting of bearing of the present invention.
Fig. 2 is the A portion structure for amplifying scheme drawing of Fig. 1.
Fig. 3 is the B portion structure for amplifying scheme drawing of Fig. 1.
Running condition reference diagram when Fig. 4 is the heating of the hot device for hoisting electromagnetism of bearing of the present invention;
Running condition reference diagram when Fig. 5 is the hot device for hoisting hot charging of bearing of the present invention;
Fig. 6 is the reference diagram of axially opening after the hot device for hoisting lifting of bearing of the present invention is accomplished.
The specific embodiment
Shown in Fig. 1-3; The hot device for hoisting of a kind of bearing comprises suspender main body 1, and main body 1 is made up of two semi-round ring shape beckets that are movably connected; Be connected with hanger 12 on the becket circumference; The bottom surface is provided with supporting plate 13, and the side top of hanger 12 is provided with the active block stop of scalable fixing bearing, and the junction of two semi-round ring shape beckets is equiped with blocking-up metal bonded assembly insulation strip 2.
Wherein active block stop can adopt any to be contained on the hot device for hoisting bearing 10 fixed card and scalable or detouchable block.Its best can adopt following structure: referring to shown in Figure 2; Form by big block 3, little block 4 and block lock bolt 5; Little block 4 is fixedly mounted on the top of big block 3; Offer one " one " font chute on the big block 3, block jam nut 5 passes the side that chute is locked at big block 3 hanger 12.Width the best of its medium and small block 4 is equal to or slightly less than the thickness of hanger 12, and the front end of " one " font chute of big block 3 is less than or equal to the thickness of main body 1 to the length of big block 3 front ends.
Be better connection, can vertically offer inner groovy, insulation strip 2 is embedded in the inner groovy at the two ends of becket.
Referring to shown in Figure 3; The best hinge ways of connecting that adopts of the semi-round ring shape becket of main body 1; Promptly all be welded with spaced apart hinge 14 at the two ends of two becket outer shrouds; The hinge 14 of two beckets is staggeredly arranged, and hinge axis 7 passes all hinges 14 successively, is movably connected respectively with hinge axis jam nut 9 two ends with two beckets.
Metal connection for more effective blocking-up two beckets can add insulating washer 6 between the adjacent again hinge 14, the sheathed insulation sleeve 8 in the upper end of hinge axis 7.Best high temperature resistant nylon insulating washer and the high temperature resistant nylon insulation sleeve of adopting.
For guaranteeing the lifting balance, hanger 12 should be provided with more than three, and the best is four, equidistantly is welded on the main body circumference.Supporting plate 13 the bests are more than 2, adopt arc plate structure, are welded on the lower surface of main body 1, and to main body 1 inboard the extension, arc is equidistantly arranged.
Shown in Fig. 4-6, during practical implementation, earlier two semicircular ring beckets are linked together through hinge axis 7 and hinge axis jam nut 9; Unclamp the block lock bolt 5 in the active block stop then; Outwards push big block 3 open along the suspender radial direction, again bearing 10 is hung in the suspender main body 1, make the bottom surface and supporting plate 13 top coincidences of bearing 10; Back into original position locking to big block 3 again; Can guarantee like this in the handling bearing process, can not make bearing failure, also reduce the risk that operating personal is injured by a crashing object simultaneously owing to unforeseen circumstancess such as rollover cause bearing to fall.Then bearing and the hot device for hoisting of bearing are hung to electromagnetic heater 11 places together and heat, as shown in Figure 4.Along with electromagnetic heater 11 is constantly worked; The temperature of bearing 10 can raise fast; But the hot device for hoisting of bearing has been blocked through the combined action of insulation strip 2, insulating washer 6 and insulation sleeve 8 and in whole bearing hot charging suspender main body 1, has been formed the closed loop eddy current, has prevented the quick rising of the temperature of hot device for hoisting.
When the temperature build-up of bearing 10 arrives desired temperature; Operating personal can directly revolve the lock bolt 5 that send big block 3, adjusts the position of big block 3 then, make its can push down bearing 10 above; Catch on the hanger 12 of this main body 1 again with chain sling; Work winching to the main shaft place that needs to install this bearing 10 then, swing in the handling process for preventing bearing, operating personal can directly buttress main body 1 of the present invention; Because the temperature of the hot device for hoisting of bearing is far below the temperature of bearing 10, whole operating process operating personal only need be worn ordinary glove and can accomplish.
Treat that bearing hangs main shaft when top, operating personal can with the hand adjustment bearing hold 10 with the relative position (needing the band ordinary glove) of axle, slowly put down bearing 10 then to its position, like Fig. 5.
After the bearing assembled, screw off the hinge axis jam nut 9 of main body 1 one sides, extract hinge axis 7 and insulation sleeve 8 out; From then on side is opened main body 1 then, makes its hinge axis 7 rotation opened with certain angle around opposite side, takes out the hot device for hoisting of bearing; As shown in Figure 6, and then lift another bearing.
The above is merely preferred embodiment of the present invention, is not the present invention is done any pro forma qualification.Any change that is equal to, modification or differentiation etc. that all those skilled in the art utilize technical scheme of the present invention that the foregoing description is made all still belong in the scope of technical scheme of the present invention.
Claims (9)
1. the hot device for hoisting of bearing comprises the suspender main body, it is characterized in that:
Main body is made up of two semi-round ring shape beckets that are movably connected; Be connected with hanger on the becket circumference; The bottom surface is provided with supporting plate; The side of hanger top is provided with scalable or detachably fixes the active block stop of bearing, and the junction of two semi-round ring shape beckets is equiped with blocking-up metal bonded assembly insulation strip.
2. the hot device for hoisting of bearing according to claim 1 is characterized in that:
The two ends of the outer shroud of said semi-round ring shape becket all are welded with the hinge of alternative arrangement, and two beckets are movably connected through hinge axis and the hinge axis jam nut that passes hinge.
3. the hot device for hoisting of bearing according to claim 2 is characterized in that:
Be equipped with insulating washer between the said adjacent hinge, the hinge axis upper end is arranged with insulation sleeve.
4. the hot device for hoisting of bearing according to claim 3 is characterized in that:
Said insulating washer is the high temperature resistant nylon insulating washer.
5. the hot device for hoisting of bearing according to claim 1 is characterized in that:
The two ends of said becket vertically are provided with inner groovy, and said insulation strip is embedded in the inner groovy.
6. the hot device for hoisting of bearing according to claim 1 is characterized in that:
Said hanger is more than three, equidistantly is welded on the main body circumference.
7. the hot device for hoisting of bearing according to claim 1 is characterized in that:
Said supporting plate is for being welded on the main body lower surface, and to the inboard plural arc that extends of main body, arc is equidistantly arranged.
8. according to the hot device for hoisting of arbitrary described bearing among the claim 1-7, it is characterized in that:
Said active block stop is made up of big block, little block and block lock bolt, and little block is fixedly mounted on the top of big block, offers one " one " font chute on the big block, and the block jam nut passes chute big block is locked at the hanger side.
9. the hot device for hoisting of bearing according to claim 8 is characterized in that:
The width of said little block is equal to or slightly less than the thickness of hanger, and the front end of said big block " " font chute is less than or equal to the thickness of main body to the length of big block front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103242817A CN102795534A (en) | 2012-09-04 | 2012-09-04 | Thermal lift of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103242817A CN102795534A (en) | 2012-09-04 | 2012-09-04 | Thermal lift of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102795534A true CN102795534A (en) | 2012-11-28 |
Family
ID=47194882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103242817A Pending CN102795534A (en) | 2012-09-04 | 2012-09-04 | Thermal lift of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102795534A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111712325A (en) * | 2018-02-26 | 2020-09-25 | 美卓矿物公司 | Lifting tool for nut of inner wear part of cone crusher |
| CN113371590A (en) * | 2021-08-13 | 2021-09-10 | 南通普吉实业有限公司 | Windproof type hoisting lockset with high safety and stability |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3833537A1 (en) * | 1988-10-01 | 1990-04-05 | Kernforschungsz Karlsruhe | Gripper for remotely-operated gripping in the transport of barrels or containers |
| CN101395081A (en) * | 2006-01-17 | 2009-03-25 | 通力股份公司 | Guide-rail brake with electro-magnetic activation |
| CN201882776U (en) * | 2010-12-15 | 2011-06-29 | 北车风电有限公司 | Mainshaft bearing installation lifting appliance of wind driven generator |
| CN202164033U (en) * | 2011-06-28 | 2012-03-14 | 国电联合动力技术(连云港)有限公司 | Hanger for shrinkable fit of main bearing of fan transmission system |
| CN202265312U (en) * | 2011-09-08 | 2012-06-06 | 南车戚墅堰机车车辆工艺研究所有限公司 | Axle suspending device |
| CN202766085U (en) * | 2012-09-04 | 2013-03-06 | 国电联合动力技术有限公司 | Hot-hanging device for bearings |
-
2012
- 2012-09-04 CN CN2012103242817A patent/CN102795534A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3833537A1 (en) * | 1988-10-01 | 1990-04-05 | Kernforschungsz Karlsruhe | Gripper for remotely-operated gripping in the transport of barrels or containers |
| CN101395081A (en) * | 2006-01-17 | 2009-03-25 | 通力股份公司 | Guide-rail brake with electro-magnetic activation |
| CN201882776U (en) * | 2010-12-15 | 2011-06-29 | 北车风电有限公司 | Mainshaft bearing installation lifting appliance of wind driven generator |
| CN202164033U (en) * | 2011-06-28 | 2012-03-14 | 国电联合动力技术(连云港)有限公司 | Hanger for shrinkable fit of main bearing of fan transmission system |
| CN202265312U (en) * | 2011-09-08 | 2012-06-06 | 南车戚墅堰机车车辆工艺研究所有限公司 | Axle suspending device |
| CN202766085U (en) * | 2012-09-04 | 2013-03-06 | 国电联合动力技术有限公司 | Hot-hanging device for bearings |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111712325A (en) * | 2018-02-26 | 2020-09-25 | 美卓矿物公司 | Lifting tool for nut of inner wear part of cone crusher |
| CN113371590A (en) * | 2021-08-13 | 2021-09-10 | 南通普吉实业有限公司 | Windproof type hoisting lockset with high safety and stability |
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Application publication date: 20121128 |