CN103521528B - Rolling mill screw-down device - Google Patents
Rolling mill screw-down device Download PDFInfo
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- CN103521528B CN103521528B CN201310533937.0A CN201310533937A CN103521528B CN 103521528 B CN103521528 B CN 103521528B CN 201310533937 A CN201310533937 A CN 201310533937A CN 103521528 B CN103521528 B CN 103521528B
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- connecting rod
- contiguous block
- pressure
- bearing pad
- frame
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Abstract
A rolling mill screw-down device comprises a spiral elevator, a protection cylinder, a connecting block, a disc spring, a pressure pad, a pair of guide rods and a connecting rod. The spiral elevator is fixed onto a frame, the protection cylinder is fixed at the lower end of the spiral elevator, the connecting rod is connected with a position extending end of the protection cylinder, the guide rods are symmetrically mounted on the frame along the center line of the spiral elevator and in a guide barrel of the lower surface of the frame, the bottom of the pressure pad is fixed to the lower end of the connecting rod and guides the connecting rod, the connecting block is arranged on the pressure pad and fixedly connected with the lower ends of the guide rods, the disc spring is arranged between the connecting block and the pressure pad, the pressure pad is arranged in a roll bearing block when the screw-down device is mounted, the roll bearing block is of a 'U'-shaped structure, the upper end of the roll bearing block is provided with inner folded edges, and the inner folded edges of the roll bearing block contact with the upper surface of the connecting block. The screw-down device is simple in structure, fewer elements are used, and cost is saved.
Description
Technical field
The present invention relates to rolling machinery, particularly the screwdown gear of a kind of heat, cold-rolling mill.
Background technology
When changing product specification in various steel hot rolling, cold rolling mill, often between roll and frame, increase a set of screwdown gear, during rolling, the draught pressure that roll bears is passed to frame.Pressure spiral lift in screwdown gear is arranged in frame, and one side pressure lives roll chock, and spiral lift is driven by motor and realizes pressure, driving roll moves, realizing the pass changing product specification requirement, in order to ensure drafts accurately, needing to eliminate gap.
Screwdown gear used at present adopts pair of hydraulic cylinders to carry out balance and eliminates gap.But owing to adopting pair of hydraulic cylinders, also need configuration Hydraulic Station, valve platform etc. to need a large amount of components and parts to add investment.
Summary of the invention
In order to solve the problem, the invention provides a kind of rolling miller device, being come the gap in cancellation element by structure unlike the prior art, ensureing drafts accurately.
According to an aspect of the present invention, provide a kind of rolling mill screwdown device, comprise spiral lift, protection oil cylinder, contiguous block, disc spring, pressure-bearing pad, a pair guide post, roll chock and connecting rod; Described spiral lift is fixed in frame; Described protection oil cylinder is fixed on the lower end of described spiral lift; Described connecting rod is connected with the piston external part of described protection oil cylinder; Described a pair guide post is symmetrical with the center line of described spiral lift, is installed in described frame, and its top be placed in be arranged on described frame lower surface guide cylinder in; The rebasing portion of described pressure-bearing and described connecting rod lower end are fixed; Described contiguous block is arranged on described pressure-bearing pad, and described connecting rod is stretched out by the hole on described contiguous block, and described contiguous block is fixedly connected with the lower end of described guide post; Described disc spring is arranged between described contiguous block and described pressure-bearing pad; When described screwdown gear installation, described pressure-bearing pad is placed in described roll chock, and described roll chock is " U " shape structure that upper end has interior flanging, and the interior flanging of described roll chock contacts with the upper surface of described contiguous block.
Rolling miller device of the present invention and existing rolling miller device structure compared simply, have saved cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is the structural representation of screwdown gear of the present invention;
Fig. 2 is the A-A profile of Fig. 1.
Wherein, description of reference numerals is as follows: 1 spiral lift, 2 protection oil cylinder, 3 contiguous blocks, 4 disc springs, 5 pressure-bearing pads, 6 guide posts, 7 frames, 8 roll chocks, 9 connecting rods, 10 guide cylinders.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is elaborated.
When motor drives spiral lift 1, protection oil cylinder 2 is depressed by spiral lift 1, and pressure-bearing pad 5 is integral with protection oil cylinder 2, thus is depressed by roll chock 8, realizes roll pressure.In order to prevent pricking card, protection key components and parts, protection oil cylinder 2 rodless cavity is full of fluid.
Due to spiral lift 1 and protection oil cylinder 2, it is very close to each other that protection oil cylinder 2 and pressure-bearing pad 5 are Hard link, only has in the middle of pressure-bearing pad 5 and roll chock 8 and may have gap, so only need eliminate this gap.
Rolling miller device of the present invention, as shown in Figure 1, comprising: 1 spiral lift, 2 protection oil cylinder, 3 contiguous blocks, 4 disc springs, 5 pressure-bearing pads, 6 guide posts, 9 connecting rods.
Spiral lift 1 is fixed in frame 7, and protection oil cylinder 2 is fixed on the lower end of spiral lift 1, and connecting rod 9 is connected with the piston external part of protection oil cylinder 2.A pair guide post 6 is with the center line of spiral lift 1 for be arranged in frame 7 symmetrically, and its top is placed in guide cylinder 10, is retracted by the roll of pressure for balancing described screwdown gear.Fix with connecting rod 9 lower end bottom pressure-bearing pad 5.Contiguous block 3 is arranged on pressure-bearing pad 5, and connecting rod 9 is stretched out by the hole on contiguous block 3, and contiguous block 3 is fixedly connected with the lower end of a pair guide post 6.Disc spring 4 is arranged between contiguous block 3 and pressure-bearing pad 5.
When screwdown gear is installed on roll, pressure-bearing pad 5 is placed in roll chock 8, and " U " shape structure of roll chock 8 interior flanging for upper end has, the interior flanging of roll chock 8 contacts with the upper surface of contiguous block 3.
The operation principle of screwdown gear of the present invention is as follows: in order to eliminate this gap, roll chock 8 is made " U " shape structure that upper end has interior this side, the interior flanging of its upper end and contiguous block 3 is made to be contacted with B face, disc spring 4 is increased in the middle of contiguous block 3 with pressure-bearing pad 5, while roll chock 8 is depressed, contiguous block 3 upwards pushes away by disc spring 4, contiguous block 3 drives roll chock 8 upwards thus guarantees that pressure-bearing pad 5 presses roll chock 8, eliminates its gap.In order to ensure the stability of whole screwdown gear, two guide posts 6 are set in the bilateral symmetry of screwdown gear.
The screwdown gear of present embodiment can adopt following steps to install: be fixed in frame 7 by spiral lift 1.Protection oil cylinder 2 is screwed to the lower end of spiral lift 1.The piston external part of connecting rod 9 with protection oil cylinder 2 is connected.By a pair guide post 6 with the center line of spiral lift for symmetry is assembled in frame 7.The lower end of contiguous block 3 and a pair guide post 6 is fixed together.Disc spring 4 is close to contiguous block 3, then pressure-bearing pad 5 is screwed in the lower end of connecting rod 9 with bolt.As above after assembling, protection oil cylinder 2 is passed into hydraulic oil tension pressure-bearing pad 5 thus compression disc spring 4, finally assemble roll and roll chock 8 is contacted with the upper surface of contiguous block 3.As above-mentioned installation just can realize the function of screwdown gear of the present invention.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (1)
1. a rolling mill screwdown device, is characterized in that, comprises spiral lift (1), protection oil cylinder (2), contiguous block (3), disc spring (4), pressure-bearing pad (5), a pair guide post (6), roll chock (8) and connecting rod (9);
Described spiral lift (1) is fixed in frame (7);
Described protection oil cylinder (2) is fixed on the lower end of described spiral lift (1);
Described connecting rod (9) is connected with the piston external part of described protection oil cylinder (2);
Described a pair guide post (6) is symmetrical with the center line of described spiral lift (1), and be installed in described frame (7), the guide cylinder (10) being arranged on described frame (7) lower surface provides guiding for it;
Described pressure-bearing pad (5) bottom is fixed with described connecting rod (9) lower end;
Described contiguous block (3) is arranged on described pressure-bearing pad (5), and described connecting rod (9) is stretched out by the hole on described contiguous block (3), and described contiguous block (3) is fixedly connected with the lower end of described a pair guide post (6);
Described disc spring (4) is arranged between described contiguous block (3) and described pressure-bearing pad (5);
When described screwdown gear installation, described pressure-bearing pad (5) is placed in described roll chock (8), " U " shape structure of described roll chock (8) interior flanging for upper end has, the interior flanging of described roll chock (8) contacts with the upper surface of described contiguous block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533937.0A CN103521528B (en) | 2013-11-01 | 2013-11-01 | Rolling mill screw-down device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533937.0A CN103521528B (en) | 2013-11-01 | 2013-11-01 | Rolling mill screw-down device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103521528A CN103521528A (en) | 2014-01-22 |
| CN103521528B true CN103521528B (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310533937.0A Active CN103521528B (en) | 2013-11-01 | 2013-11-01 | Rolling mill screw-down device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103521528B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525632B (en) * | 2014-12-18 | 2017-01-25 | 太原重工股份有限公司 | Inclined roller type steel pipe straightening machine and upper straightening roller pressing-down device thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2813137Y (en) * | 2005-08-11 | 2006-09-06 | 大连华锐股份有限公司 | Whole hydraulic side pressing mechanism for vertical roll mill |
| CN101947556A (en) * | 2010-10-22 | 2011-01-19 | 天津津重重工机器设备制造有限公司 | Screw down device of working rolls of four-roll rolling mill |
| CN102441570A (en) * | 2011-10-26 | 2012-05-09 | 太原重工股份有限公司 | Small hydraulic bin of continuous tube mill |
| CN202779181U (en) * | 2012-08-31 | 2013-03-13 | 太原重工股份有限公司 | Pressing device of rolling mill |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59107712A (en) * | 1982-12-10 | 1984-06-22 | Mitsubishi Heavy Ind Ltd | Ajusting device of gap between work roll chock and backup roll chock |
| JP3449078B2 (en) * | 1995-11-29 | 2003-09-22 | 大同特殊鋼株式会社 | Rolling guide spacing adjustment device |
-
2013
- 2013-11-01 CN CN201310533937.0A patent/CN103521528B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2813137Y (en) * | 2005-08-11 | 2006-09-06 | 大连华锐股份有限公司 | Whole hydraulic side pressing mechanism for vertical roll mill |
| CN101947556A (en) * | 2010-10-22 | 2011-01-19 | 天津津重重工机器设备制造有限公司 | Screw down device of working rolls of four-roll rolling mill |
| CN102441570A (en) * | 2011-10-26 | 2012-05-09 | 太原重工股份有限公司 | Small hydraulic bin of continuous tube mill |
| CN202779181U (en) * | 2012-08-31 | 2013-03-13 | 太原重工股份有限公司 | Pressing device of rolling mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103521528A (en) | 2014-01-22 |
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