CN103406358B - Rapid supporting roller changing mechanism for plate strip rolling mill - Google Patents
Rapid supporting roller changing mechanism for plate strip rolling mill Download PDFInfo
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- CN103406358B CN103406358B CN201310326288.7A CN201310326288A CN103406358B CN 103406358 B CN103406358 B CN 103406358B CN 201310326288 A CN201310326288 A CN 201310326288A CN 103406358 B CN103406358 B CN 103406358B
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- connecting axle
- roll
- changing mechanism
- strip
- backing roll
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Abstract
The invention relates to a rapid supporting roller changing mechanism for a plate strip rolling mill. The rapid supporting roller changing mechanism comprises a supporting roller hook (3) and a connecting shaft (8) and is driven by an oil cylinder (6). The rapid supporting roller changing mechanism is characterized in that the connecting shaft (8) is fixed on the supporting roller hook (3) through a bearing and a bearing gland (14), the cross section of the middle of the connecting shaft (8) is in a flat shape with two symmetrically-scraped sides, a shaft hole (18) and an opening both corresponding to the connecting shaft (8) are formed at one end of an oil cylinder connector (9), the diameter of the shaft hole (18) is not less than the section diameter of the connecting shaft (8), a gap at the opening of the end portion of the shaft hole (18) is larger than the distance between two symmetric planes of the connecting shaft (8) and smaller than the section diameter of connecting shaft (8), the piston rod (19) of the oil cylinder (6) is detachably connected at one end of the oil cylinder connector (9), and the oil cylinder connector (9) is fixed on a frame (4) with wheels (5). The rapid supporting roller changing mechanism has the advantages that convenience in operation and maintenance is realized, roller changing time is saved, and auxiliary rolling time is reduced.
Description
Technical field
The present invention relates to a kind of metallurgy strip steel rolling equipment, particularly a kind of backing roll quick roll changing mechanism for strip-mill strip.
Background technology
For saving roll changing time, improve band productivity ratio, the extensive use on strip-mill strip of backing roll Quick roll-changing device.Backing roll Quick roll-changing device is pulled out or propelling by backing roll by hydraulic oil cylinder driving, and the hook of oil cylinder head is connected with the hook on backing roll by connecting axle.When entering roller, first backing roll is lifted on changing track for roll, then oil cylinder is stretched out after allowing the half slot of oil cylinder head hook aim at the half slot of backing roll hook, connecting axle to be loaded onto and again backing roll is pushed memorial archway.Go out roller contrary with it, after backing roll is pulled out from memorial archway, taken out by connecting axle, allow oil cylinder and backing roll throw off, backing roll hangs away after retracting completely by oil cylinder.In actual use, the mounting or dismounting of connecting axle are not be easy to.Because two half slots are the same with the size of connecting axle, so the half slot on two reverse hooks is wanted to be alignd by oil cylinder crawl and is loaded onto connecting key may need for several times back and forth adjustment oil cylinder head hook position.In order to save roll changing time operative employee generally can select in half slot position close to time with hammer connecting axle to be pounded into from half slot or pounds out.This roller replacing mode not only can increase roll changing time, and easily makes connecting member deformation impaired, directly has influence on productivity ratio.
Summary of the invention
The object of the invention is to the above-mentioned technical problem overcoming above-mentioned prior art, propose a kind of backing roll quick roll changing mechanism for strip-mill strip of not dismounting connecting axle.
Technical scheme of the present invention is: a kind of backing roll quick roll changing mechanism for strip-mill strip, this changing rig comprises backing roll hook and connecting axle, and by hydraulic oil cylinder driving, connecting axle is fixed on backing roll hook by bearing and bearing gland, cross section in the middle part of described connecting axle is the flat pattern that bilateral symmetry is scabbled, handle is equipped with in one end of described connecting axle, cylinder connector one end has the axis hole corresponding with connecting axle and opening, shaft hole diameter is not less than connecting axle diameter of section, the opening part spacing of axis hole end is greater than the distance between connecting axle two symmetrical plane, be less than the diameter of section of connecting axle, the cylinder connector other end and cylinder piston rod removably connect, described cylinder connector is fixed on the support body with wheel.
Described backing roll hook and supporting roller bearing seat removably connect.
The bearing of described fixed connection shaft is high strength self-lubricating bearing, and its end is provided with fastener.
Described cylinder connector coordinates fixing respectively with gland and support body down through axial securing means for impeller.
One end that described cylinder connector is connected with cylinder piston rod is configured with radial fixing device.
Described wheel is symmetricly set on support body both sides, and matching track runs.
Described changing rig is arranged on the fore side of mill housing.
Backing roll is pulled out or propelling by hydraulic oil cylinder driving by the present invention, realizes fast roll changing.During roll change, first backing roll is lifted on changing track for roll, then by plane one sideway swivel in the middle part of connecting axle to horizontal direction, drive oil cylinder, make connecting axle enter the axis hole of cylinder connector by opening part, now by connecting axle 90-degree rotation, backing roll hook and cylinder connector successful connection, then drive oil cylinder, backing roll pulled out or pushes memorial archway, realizing fast roll changing.After roll change terminates, by connecting axle 90-degree rotation again, make the plane side in the middle part of connecting axle go to horizontal level, retraction oil cylinder can disconnect the connection between axle and cylinder connector, is hung away by backing roll after waiting oil cylinder to retract completely.
The present invention does not need dismounting connecting axle in roll change process, has operating maintenance convenient, the feature of saving roll changing time and reducing rolling non-cutting time.
Accompanying drawing explanation
Fig. 1 is the top view of structural principle of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the front view of Fig. 1;
In figure, 1, packing ring; 2, screw; 3, backing roll hook; 4, support body; 5, wheel; 6, oil cylinder; 7, bearing; 8, connecting axle; 9, cylinder connector; 10, axial securing means for impeller; 11, gland; 12, track; 13, supporting roller bearing seat; 14, bearing gland; 15, handle; 16, fastener; 17, radial fixing device; 18, axis hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, structural principle of the present invention and operation principle are described in detail.
Composition graphs 1, Fig. 3, Fig. 4, the invention provides a kind of backing roll quick roll changing mechanism for strip-mill strip, this device comprises backing roll hook 3 and connecting axle 8, and is driven by oil cylinder 6.Described backing roll hook 3 removably connects with supporting roller bearing seat 13.Connecting axle 8 is fixed on backing roll hook 3 by bearing 7 and bearing gland 14, and described bearing 7 can select high strength self-lubricating bearing, can install fastener 16 and be fixed, prevent from coming off in its end.Cross section in the middle part of connecting axle 8 is the flat pattern that bilateral symmetry is scabbled, and is convenient to the axis hole 18 entering cylinder connector 9.Handle 15 is equipped with in one end of connecting axle 8, can manual rotation connecting axle 8, changes the position of connecting axle 8 middle plane side, realizes and the connection of cylinder connector 9 and disconnection.Consider that roll change frequency is not high, manually more flexible, the causes such as cost is lower, manually comparatively suitable, other modes can make device complicated.With axis hole 18 corresponding matching of cylinder connector 9 one end in the middle part of connecting axle 8, axis hole 18 diameter is not less than connecting axle 8 diameter of section, and the opening part spacing of axis hole 18 end is greater than the distance in the middle part of connecting axle 8 between two symmetrical planes, is less than the diameter of section of connecting axle 8.
Cylinder connector 9 is fixed on the support body 4 with wheel 5, can install axial securing means for impeller 10 in cylinder connector about 9 both sides simultaneously, coordinates fixing respectively, prevent cylinder connector 9 from rotating with gland 11 and support body 4.Support body 4 with wheel 5 can not only provide support for the piston rod Long travel of oil cylinder 6 stretches out, and also can ensure that the flat position in the middle part of connecting axle 8 precisely can be aimed in one end of cylinder connector 9 opening, and not deviation position.
Cylinder connector 9 other end and oil cylinder 6 removably connect, and can limit simultaneously rotate with radial fixing device 17.Described wheel 5 is symmetricly set on support body 4 both sides, and matching track 12 runs.When driving oil cylinder 6, the wheel 5 on support body 4 is advanced along track 12.
This roll change mechanism is arranged on the fore side of mill housing, is convenient to control.
Composition graphs 1, Fig. 2, Fig. 4, connecting axle 8 has two positions, and one is connection bit, and one is off position.During roll change, by plane one sideway swivel in the middle part of connecting axle 8 to horizontal direction, drive oil cylinder 6, connecting axle 8 is made to enter the axis hole 18 of cylinder connector 9 by opening part, now by connecting axle 8 90-degree rotation, backing roll hook 3 and cylinder connector 9 successful connection, then drive oil cylinder 6, backing roll pulled out or pushes memorial archway, realizing fast roll changing.After roll change terminates, by connecting axle 8 90-degree rotation again, make the plane side in the middle part of connecting axle 8 go to horizontal level, retraction oil cylinder 6 can disconnect the connection between axle 8 and cylinder connector 9, is hung away by backing roll after waiting oil cylinder 6 to retract completely.
In reality, described in removably connect can by screw, nut, packing ring realize, described fastener can be trip bolt, and described axial securing means for impeller can be key, and described radial fixing device can be pin.
Because the present invention does not need dismounting connecting axle in roll change process, this has just saved roll changing time greatly, decrease rolling non-cutting time, and this device has easy to operate and that maintenance and repair amount is little feature simultaneously.
The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (7)
1. the backing roll quick roll changing mechanism for strip-mill strip, this roll change mechanism comprises backing roll hook (3) and connecting axle (8), this roll change mechanism is driven by oil cylinder (6), it is characterized in that, connecting axle (8) is fixed on backing roll hook (3) by bearing and bearing gland (14), the cross section at described connecting axle (8) middle part is the flat pattern that bilateral symmetry is scabbled, handle (15) is equipped with in one end of described connecting axle (8), cylinder connector (9) one end has the axis hole (18) corresponding with connecting axle (8) and opening, axis hole (18) diameter is not less than connecting axle (8) diameter of section, the opening part spacing of axis hole (18) end is greater than the distance between connecting axle (8) two symmetrical plane, be less than the diameter of section of connecting axle (8), cylinder connector (9) other end and oil cylinder (6) removably connect, described cylinder connector (9) is fixed on the support body (4) with wheel (5).
2. the backing roll quick roll changing mechanism for strip-mill strip according to claim 1, is characterized in that, described backing roll hook (3) and supporting roller bearing seat (13) removably connect.
3. the backing roll quick roll changing mechanism for strip-mill strip according to claim 1, is characterized in that, the bearing (7) of described connecting axle (8) is high strength self-lubricating bearing, and its end is provided with fastener (16).
4. the backing roll quick roll changing mechanism for strip-mill strip according to claim 1, is characterized in that, described cylinder connector (9) coordinates fixing respectively with gland (11) and support body (4) down through axial securing means for impeller (10).
5. the backing roll quick roll changing mechanism for strip-mill strip according to claim 1, is characterized in that, one end that described cylinder connector (9) is connected with oil cylinder (6) is configured with radial fixing device (17).
6. the backing roll quick roll changing mechanism for strip-mill strip according to claim 1, is characterized in that, described wheel (5) is symmetricly set on support body (4) both sides, and matching track (12) runs.
7. the backing roll quick roll changing mechanism for strip-mill strip according to claim 1, it is characterized in that, described roll change mechanism is arranged on the fore side of mill housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310326288.7A CN103406358B (en) | 2013-07-31 | 2013-07-31 | Rapid supporting roller changing mechanism for plate strip rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310326288.7A CN103406358B (en) | 2013-07-31 | 2013-07-31 | Rapid supporting roller changing mechanism for plate strip rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103406358A CN103406358A (en) | 2013-11-27 |
| CN103406358B true CN103406358B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310326288.7A Active CN103406358B (en) | 2013-07-31 | 2013-07-31 | Rapid supporting roller changing mechanism for plate strip rolling mill |
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| Country | Link |
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| CN (1) | CN103406358B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105327939B (en) * | 2015-11-27 | 2017-07-25 | 山东钢铁集团日照有限公司 | A kind of roller group of energy quick-replaceable anti-crease rollers |
| CN112547795A (en) * | 2020-11-16 | 2021-03-26 | 河钢股份有限公司承德分公司 | Method for disassembling and assembling rolling mill |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07223006A (en) * | 1994-02-15 | 1995-08-22 | Hitachi Cable Ltd | Rolling roll positioning device |
| CN101011708A (en) * | 2007-01-25 | 2007-08-08 | 鞍钢股份有限公司 | Quick replacing device and method for horizontal rolling mill transmission shaft of front-back-hanging vertical rolling mill |
| CN101780473A (en) * | 2009-11-12 | 2010-07-21 | 无锡五冶金属压延有限公司 | Device for drawing intermediate roll of eighteen-roll cold-rolling mill |
| CN203061564U (en) * | 2013-02-22 | 2013-07-17 | 新兴铸管股份有限公司 | Roller quick-change tool |
| CN203470477U (en) * | 2013-07-31 | 2014-03-12 | 中国重型机械研究院股份公司 | Quick back-up roll replacement device for strip rolling mill |
-
2013
- 2013-07-31 CN CN201310326288.7A patent/CN103406358B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07223006A (en) * | 1994-02-15 | 1995-08-22 | Hitachi Cable Ltd | Rolling roll positioning device |
| CN101011708A (en) * | 2007-01-25 | 2007-08-08 | 鞍钢股份有限公司 | Quick replacing device and method for horizontal rolling mill transmission shaft of front-back-hanging vertical rolling mill |
| CN101780473A (en) * | 2009-11-12 | 2010-07-21 | 无锡五冶金属压延有限公司 | Device for drawing intermediate roll of eighteen-roll cold-rolling mill |
| CN203061564U (en) * | 2013-02-22 | 2013-07-17 | 新兴铸管股份有限公司 | Roller quick-change tool |
| CN203470477U (en) * | 2013-07-31 | 2014-03-12 | 中国重型机械研究院股份公司 | Quick back-up roll replacement device for strip rolling mill |
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| Publication number | Publication date |
|---|---|
| CN103406358A (en) | 2013-11-27 |
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