CN103521528A - Rolling mill screw-down device - Google Patents
Rolling mill screw-down device Download PDFInfo
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- CN103521528A CN103521528A CN201310533937.0A CN201310533937A CN103521528A CN 103521528 A CN103521528 A CN 103521528A CN 201310533937 A CN201310533937 A CN 201310533937A CN 103521528 A CN103521528 A CN 103521528A
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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
While changing product specification in various steel hot rollings, cold rolling mill, often between roll and frame, increase a set of screwdown gear, draught pressure during rolling, roll being born passes to frame.The spiral lift of depressing in screwdown gear is arranged in frame, and one side pressure is lived roll chock, and spiral lift drives to realize by motor and depresses, the motion of driving roll, realize and change the pass that product specification requires, in order to guarantee drafts accurately, need to eliminate gap.
Screwdown gear at present used adopts pair of hydraulic cylinders to carry out balance and eliminates gap.Yet owing to adopting pair of hydraulic cylinders, also needing to configure a large amount of components and parts of needs such as Hydraulic Station, valve platform has increased investment.
Summary of the invention
In order to address the above problem, the invention provides a kind of rolling miller device, by structure unlike the prior art, come the gap in cancellation element, guarantee 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, dish spring, pressure-bearing pad, a pair of 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 of guide post is symmetrical with the center line of described spiral lift, be installed in described frame, and its top is placed in the guide cylinder that is arranged on described frame lower surface; 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 stretches out by the hole on described contiguous block, and described contiguous block is fixedly connected with the lower end of described guide post; Described dish 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 are simple, 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 cylinders, 3 contiguous blocks, 4 dish springs, 5 pressure-bearing pads, 6 guide posts, 7 frames, 8 roll chocks, 9 connecting rods, 10 guide cylinders.
The specific embodiment
Below in conjunction with the specific embodiment, the present invention is elaborated.
When motor drives spiral lift 1, spiral lift 1 is depressed protection oil cylinder 2, and pressure-bearing pad 5 is integral with protection oil cylinder 2, thereby roll chock 8 is depressed, and realizes roll and depresses.In order to prevent from pricking card, protection key components and parts, protection oil cylinder 2 rodless cavities are full of fluid.
Due to spiral lift 1 and protection oil cylinder 2, protection oil cylinder 2 and pressure-bearing pad 5 be hard be connected very close to each other, only have pressure-bearing pad 5 and roll chock 8 in the middle of possibility gapped, 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 cylinders, 3 contiguous blocks, 4 dish springs, 5 pressure-bearing pads, 6 guide posts, 9 connecting rods.
When screwdown gear is installed on roll, pressure-bearing pad 5 is placed in roll chock 8, and roll chock 8 has " U " shape structure of interior flanging for upper end, and 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 to " U " shape structure that upper end has interior this side, make interior flanging and the contiguous block 3 of its upper end be contacted with A face, at the middle dish spring 4 that increases of contiguous block 3 and pressure-bearing pad 5, when roll chock 8 is depressed, dish spring 4 upwards pushes away contiguous block 3, thereby contiguous block 3 drives roll chock 8 upwards to guarantee that pressure-bearing pad 5 presses roll chock 8, has eliminated its gap.In order to guarantee the stability of whole screwdown gear, in the bilateral symmetry of screwdown gear, two guide posts 6 are set.
The screwdown gear of present embodiment can adopt following steps to install: spiral lift 1 is fixed in frame 7.Protection oil cylinder 2 is screwed to the lower end of spiral lift 1.Connecting rod 9 is connected with the piston external part of protection oil cylinder 2.A pair of guide post 6 be take to the center line of spiral lift to be assembled in frame 7 as symmetry.Contiguous block 3 and the lower end of a pair of guide post 6 are fixed together.Dish spring 4 is close to contiguous block 3, then pressure-bearing pad 5 use bolts is screwed in to the lower end of connecting rod 9.Thereby as above after assembling, protection oil cylinder 2 is passed into hydraulic oil tension pressure-bearing pad 5 compact disc springs 4, finally assemble roll 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; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of 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), dish spring (4), pressure-bearing pad (5), a pair of 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 of guide post (6) is symmetrical with the center line of described spiral lift (1), is installed on described frame (7) upper, and the guide cylinder (10) that is 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;
It is upper that described contiguous block (3) is arranged on described pressure-bearing pad (5), and described connecting rod (9) stretches 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 of guide post (6);
Described dish 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), described roll chock (8) has " U " shape structure of interior flanging for upper end, and 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 true CN103521528A (en) | 2014-01-22 |
| CN103521528B CN103521528B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310533937.0A Active CN103521528B (en) | 2013-11-01 | 2013-11-01 | Rolling mill screw-down device |
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| CN (1) | CN103521528B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525632A (en) * | 2014-12-18 | 2015-04-22 | 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 (6)
| 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 |
| JPH09155431A (en) * | 1995-11-29 | 1997-06-17 | Daido Steel Co Ltd | Gap regulating device of rolling guide |
| 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 |
-
2013
- 2013-11-01 CN CN201310533937.0A patent/CN103521528B/en active Active
Patent Citations (6)
| 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 |
| JPH09155431A (en) * | 1995-11-29 | 1997-06-17 | Daido Steel Co Ltd | Gap regulating device of rolling guide |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525632A (en) * | 2014-12-18 | 2015-04-22 | 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 |
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| Publication number | Publication date |
|---|---|
| CN103521528B (en) | 2015-07-22 |
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