CN102699658A - Method for disassembling roller bearing and eccentric lifting appliance thereof - Google Patents
Method for disassembling roller bearing and eccentric lifting appliance thereof Download PDFInfo
- Publication number
- CN102699658A CN102699658A CN201210158481XA CN201210158481A CN102699658A CN 102699658 A CN102699658 A CN 102699658A CN 201210158481X A CN201210158481X A CN 201210158481XA CN 201210158481 A CN201210158481 A CN 201210158481A CN 102699658 A CN102699658 A CN 102699658A
- Authority
- CN
- China
- Prior art keywords
- eccentric
- bearing
- bearing housing
- bearing box
- connecting rod
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 210000004907 gland Anatomy 0.000 claims abstract description 4
- 239000000725 suspension Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Landscapes
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention relates to the field of roller maintenance of PQF continuous mills, in particular to a method for disassembling a roller bearing and an eccentric hanger thereof, which is characterized in that the eccentric hanger is adopted to offset the eccentric state of the center of mass of a bearing box, so that the bearing box can be automatically hung and corrected in the bearing disassembling process without being held by people, and the method comprises the following steps: 1) the bearing box is matched and positioned with the eccentric lifting appliance; 2) placing the backing ring into a gland spigot of the bearing box; 3) hoisting the bearing box and placing the bearing box on a pressure head of the hydraulic machine; 4) starting a hydraulic press, and lifting a bearing box to an upper beam of the hydraulic press; 5) and (5) continuously starting the hydraulic press, and ejecting the bearing. The eccentric lifting appliance comprises a supporting pressing plate, a connecting rod and a lifting ring, wherein the central axis of the connecting rod deviates from the central axis H of the supporting pressing plate, and the H value is consistent with the value of the center of mass of a bearing box deviating from the axis of a roller. Compared with the prior art, the invention has the beneficial effects that: the method is simple and easy to implement, reduces the labor intensity of operators, improves the working efficiency and reliably ensures the personal safety and the equipment safety of the operators.
Description
Technical field
The present invention relates to the maintenance of PQF continuous rolling mill roller field, particularly a kind of method for dismounting of roll bearing and eccentric suspender thereof.
Background technology
The PQF tandem mill is 6 three-high mills introducing from Germany; It is the capital equipment on the φ 177 hot rolled seamless steel tube production lines; The continuous rolling mill roller device is the important tool of rolling seamless steel pipe, and it is high that breaker roll device assembly precision requires, especially the roll mandrel after the assembling to; The radial-play amount; Therefore the good and bad seamless steel pipe product quality that directly influences of its assembly quality all wants the breaker roll device to overhaul after roll is reached the standard grade rolling one-period (3-5 days), to guarantee to satisfy the rolling mill practice requirement.
Conventional repair method is that one group of roll device of every maintenance needs three pincers worker breaker roll devices to dismantle, clean and its bearing clearance is adjusted, and sees Fig. 4, and dismounting bearing program is following in the maintenance process:
1) select suitable (can bearing a be extruded) backing plate (14) to be placed on the pressure head of hydraulic press (11) earlier;
2) be placed on the pressure head of hydraulic press with crane and steel wire rope (9) bearing housing (6) of slinging;
3) withdraw from steel wire rope (9);
4) between the upper beam (12) of bearing housing (6) one sides and hydraulic press, add cushion block (13);
5) the primer fluid press is depressed bearing (7);
6) take off bearing (7), be put in the operation place, to be cleaned, inspection, return dress;
7) bearing housing (6) levered up penetrate steel wire rope:
8) bearing housing (6) is hung oneself down from hydraulic press, be put in the operation place, to be cleaned, inspection, return dress.
The weak point of above-mentioned method for dismounting is, because the barycenter of bearing housing departs from the roll axle center, bearing housing is crooked during bearing removal, must just can set upright with hand, wants simultaneously constantly with hand backing plate, cushion block are just put, and relatively wastes time and energy and dangerous.
Summary of the invention
The method for dismounting and the eccentric suspender thereof that the purpose of this invention is to provide a kind of roll bearing overcome the deficiency of prior art, make the disassembly process of roll bearing more simple and easy to do, reduce labor intensity, and guarantee job safety, increase work efficiency.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of method for dismounting of roll bearing adopts a kind of eccentric suspender to offset the eccentric state of bearing housing barycenter, and bearing removal process middle (center) bearing case can just be hung automatically, does not need the people to hold up, and its concrete operations step is following:
1) bearing housing is cooperated the location with eccentric suspender, the suspension ring of eccentric suspender are stretched out by the axle sleeve endoporus;
2) gasket ring is put into the gland seam of bearing housing;
3) be put on the pressure head of hydraulic press with the crane bearing housing of slinging;
4) primer fluid press, bearing housing rise with pressure head and push up the upper beam of hydraulic press until gasket ring, and inspection and adjustment gasket ring and bearing housing are avoided crooked and unbalance stress;
5) continue the primer fluid press, ejected up to bearing.
Described a kind of eccentric suspender; Comprise backing pressure plate, connecting rod and suspension ring, the connecting rod bottom links to each other with the backing pressure plate is vertical, and the connecting rod top is provided with suspension ring; Backing pressure plate axis H is departed from said connecting rod axis, and this H value is consistent with the value that the barycenter of bearing housing departs from the roll axle center.
Said H value is 60-70mm.
Said backing pressure plate is provided with locating ring, the locating ring center of circle and backing pressure plate axis coinciding, locating ring and axle sleeve endoporus coupling.
Compared with prior art; The invention has the beneficial effects as follows: offset the eccentric state of bearing housing barycenter through adopting a kind of eccentric suspender, make the disassembly process of roll bearing more simple and easy to do, bearing housing just can just hang automatically; Need not with hand steered; Alleviate operator's labour intensity, improved operating efficiency, can reliably guarantee operator's person and device security.
Description of drawings
Fig. 1 is the eccentric suspender example structure of a present invention sketch map;
Fig. 2 is application state one structural representation of the present invention;
Fig. 3 is application state two structural representations of the present invention;
Fig. 4 is a prior art middle (center) bearing disassembly status sketch map.
Among the figure: the eccentric suspender 6-of 1-backing pressure plate 2-connecting rod 3-suspension ring 4-locating ring 5-bearing housing 7-bearing 8-gasket ring 9-steel wire rope 10-axle sleeve 11-hydraulic press 12-upper beam 13-cushion block 14-backing plate
The specific embodiment
Be described further below in conjunction with the accompanying drawing specific embodiments of the invention:
See Fig. 1; Be the eccentric suspender example structure of the present invention sketch map, comprise backing pressure plate 1, connecting rod 2 and suspension ring 3, connecting rod 2 bottoms link to each other with backing pressure plate 1 vertical screw thread; Connecting rod 2 tops are provided with suspension ring 3; The axis H of backing pressure plate 1 is departed from the axis of connecting rod 2, and this H value is consistent with the value that the barycenter of bearing housing departs from the roll axle center, and general H value is 60-70mm.Backing pressure plate 1 is provided with locating ring 4, locating ring 4 centers of circle and backing pressure plate 1 axis coinciding.The shape of different model roll bearing box is different, and the value H that its barycenter departs from the roll axle center needs definite through calculating, and the eccentric suspender of making like this could satisfy instructions for use, H selection 66mm in the present embodiment.
The method for dismounting of a kind of roll bearing of the present invention is through adopting above-mentioned eccentric suspender 5 to offset the eccentric state of bearing housing 6 barycenter, bearing 7 unloading process middle (center) bearing casees 6 can just be hung automatically, do not need the people to hold up, and its concrete operations step is following:
1) bearing housing 6 is cooperated the location with eccentric suspender 5, locating ring cooperates with axle sleeve 10 endoporus, and the suspension ring of eccentric suspender 5 are stretched out by axle sleeve 10 endoporus;
2) gasket ring 8 is put into the gland seam of bearing housing 6;
3) be put on the pressure head of hydraulic press 11 with steel wire rope 9 bearing housing of slinging;
4) the primer fluid press 11, and bearing housing 6 rises with pressure head and pushes up the upper beam 12 of hydraulic press until gasket ring 8, and inspection and adjustment gasket ring 8 are avoided crooked and unbalance stress with bearing housing 6, see Fig. 2;
5) continue primer fluid press 11, ejected, see Fig. 3 up to bearing 7.
Claims (4)
1. the method for dismounting of a roll bearing is characterized in that, adopts a kind of eccentric suspender to offset the eccentric state of bearing housing barycenter, and bearing removal process middle (center) bearing case can just be hung automatically, does not need the people to hold up, and its concrete operations step is following:
1) bearing housing is cooperated the location with eccentric suspender, the suspension ring of eccentric suspender are stretched out by the axle sleeve endoporus;
2) gasket ring is put into the gland seam of bearing housing;
3) be put on the pressure head of hydraulic press with the crane bearing housing of slinging;
4) primer fluid press, bearing housing rise with pressure head and push up the upper beam of hydraulic press until gasket ring, and inspection and adjustment gasket ring and bearing housing are avoided crooked and unbalance stress;
5) continue the primer fluid press, ejected up to bearing.
2. a kind of eccentric suspender according to claim 1; It is characterized in that; Comprise backing pressure plate, connecting rod and suspension ring, the connecting rod bottom links to each other with the backing pressure plate is vertical, and the connecting rod top is provided with suspension ring; Backing pressure plate axis H is departed from said connecting rod axis, and this H value is consistent with the value that the barycenter of bearing housing departs from the roll axle center.
3. a kind of eccentric suspender according to claim 2 is characterized in that said H value is 60-70mm.
4. a kind of eccentric suspender according to claim 2 is characterized in that said backing pressure plate is provided with locating ring, the locating ring center of circle and backing pressure plate axis coinciding, locating ring and axle sleeve endoporus coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210158481.XA CN102699658B (en) | 2012-05-21 | 2012-05-21 | Method for disassembling roller bearing and eccentric lifting appliance thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210158481.XA CN102699658B (en) | 2012-05-21 | 2012-05-21 | Method for disassembling roller bearing and eccentric lifting appliance thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102699658A true CN102699658A (en) | 2012-10-03 |
| CN102699658B CN102699658B (en) | 2014-07-30 |
Family
ID=46892867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210158481.XA Active CN102699658B (en) | 2012-05-21 | 2012-05-21 | Method for disassembling roller bearing and eccentric lifting appliance thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102699658B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658651A (en) * | 2020-11-10 | 2021-04-16 | 广州市花都全球自动变速箱有限公司 | Method for disassembling copper sleeve of electromagnetic valve |
| CN112692085A (en) * | 2020-11-10 | 2021-04-23 | 广州市花都全球自动变速箱有限公司 | Electromagnetic valve copper sleeve drawing machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3344499A1 (en) * | 1983-12-09 | 1985-06-20 | Bernard Avermann GmbH u. Co KG, 4500 Osnabrück | Slinging device for lifting appliances |
| JP2006247702A (en) * | 2005-03-10 | 2006-09-21 | Jfe Steel Kk | Hoisting tool used exclusively for edger roll |
| CN2925769Y (en) * | 2006-07-03 | 2007-07-25 | 唐山钢铁股份有限公司 | Bearing demounting appliance |
| CN201043117Y (en) * | 2007-04-29 | 2008-04-02 | 唐山钢铁股份有限公司 | Roll bearing integral hoisting tool |
| JP2009286575A (en) * | 2008-05-29 | 2009-12-10 | Ntn Corp | Bearing component hoisting tool |
| CN201824115U (en) * | 2010-09-20 | 2011-05-11 | 宝山钢铁股份有限公司 | Bearing dismounting device |
| CN202170219U (en) * | 2011-07-28 | 2012-03-21 | 四川航泰航空装备有限公司 | Hanging device |
| CN202606503U (en) * | 2012-05-21 | 2012-12-19 | 鞍钢股份有限公司 | Eccentric lifting appliance |
-
2012
- 2012-05-21 CN CN201210158481.XA patent/CN102699658B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3344499A1 (en) * | 1983-12-09 | 1985-06-20 | Bernard Avermann GmbH u. Co KG, 4500 Osnabrück | Slinging device for lifting appliances |
| JP2006247702A (en) * | 2005-03-10 | 2006-09-21 | Jfe Steel Kk | Hoisting tool used exclusively for edger roll |
| CN2925769Y (en) * | 2006-07-03 | 2007-07-25 | 唐山钢铁股份有限公司 | Bearing demounting appliance |
| CN201043117Y (en) * | 2007-04-29 | 2008-04-02 | 唐山钢铁股份有限公司 | Roll bearing integral hoisting tool |
| JP2009286575A (en) * | 2008-05-29 | 2009-12-10 | Ntn Corp | Bearing component hoisting tool |
| CN201824115U (en) * | 2010-09-20 | 2011-05-11 | 宝山钢铁股份有限公司 | Bearing dismounting device |
| CN202170219U (en) * | 2011-07-28 | 2012-03-21 | 四川航泰航空装备有限公司 | Hanging device |
| CN202606503U (en) * | 2012-05-21 | 2012-12-19 | 鞍钢股份有限公司 | Eccentric lifting appliance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658651A (en) * | 2020-11-10 | 2021-04-16 | 广州市花都全球自动变速箱有限公司 | Method for disassembling copper sleeve of electromagnetic valve |
| CN112692085A (en) * | 2020-11-10 | 2021-04-23 | 广州市花都全球自动变速箱有限公司 | Electromagnetic valve copper sleeve drawing machine |
| CN112658651B (en) * | 2020-11-10 | 2022-07-15 | 广州市花都全球自动变速箱有限公司 | Method for disassembling copper sleeve of electromagnetic valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102699658B (en) | 2014-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103286540B (en) | Detachment method for screwdown cylinders on rolling mill | |
| CN109202411B (en) | Hydraulic cylinder copper bush replacing process of quick forging equipment | |
| CN202174391U (en) | Crankshaft fillet rolling machine | |
| CN102335677A (en) | Quick replacement device and replacement method for stand roller of heavy plate mill | |
| CN102699658B (en) | Method for disassembling roller bearing and eccentric lifting appliance thereof | |
| CN201517984U (en) | Cup projection test machine | |
| CN204747073U (en) | Conveyor is changed to slab band rolling mill AGC pneumatic cylinder | |
| CN202606503U (en) | Eccentric lifting appliance | |
| CN106424507B (en) | A kind of rail mounted open die forging saddle support and its application method | |
| CN205151660U (en) | Automatic jacking device of quick -witted maintenance of conical rollers down of ring of passing through many hands or places | |
| CN218361322U (en) | Full-endless hot-rolled strip steel working roll bearing dismounting and carrying device | |
| CN211539048U (en) | Withdrawal and straightening machine | |
| CN203610943U (en) | Tool capable of fast disassembling work roller jaw of straightening machine | |
| CN102259158A (en) | Novel machine tool for manufacturing steel flanges | |
| CN102974667A (en) | Elbow rough machining device | |
| CN203266041U (en) | Device for mounting or dismounting slide shoe bearing bushes | |
| CN206550159U (en) | A kind of hydraulic press orthopedic appliance for handling long straight workpiece | |
| CN204771413U (en) | Dismantle device of jumbo size tooth coupling | |
| CN206550160U (en) | The long straight workpiece hydraulic press orthopedic appliance of one kind | |
| CN104624801A (en) | Pressing die special for machining curved plates | |
| CN102641918B (en) | Horizontal type bending machine used for forming annular piece | |
| CN202639741U (en) | Quick seam pressing system for assembling high-pressure steel pressure steel pipe circular seams | |
| CN204685750U (en) | A kind of U-shaped beam forcing press with stripper apparatus and die strip liner plate | |
| CN201261031Y (en) | Booster mill frame for section bar-straightening equipment | |
| CN109909947B (en) | Four stand hydraulic press auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |