CN201493307U - Short stress strand mill - Google Patents
Short stress strand mill Download PDFInfo
- Publication number
- CN201493307U CN201493307U CN2009202226384U CN200920222638U CN201493307U CN 201493307 U CN201493307 U CN 201493307U CN 2009202226384 U CN2009202226384 U CN 2009202226384U CN 200920222638 U CN200920222638 U CN 200920222638U CN 201493307 U CN201493307 U CN 201493307U
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- China
- Prior art keywords
- roll
- neck
- bearing block
- diameter
- milling train
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- Expired - Fee Related
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Abstract
The utility model discloses a short stress strand mill which comprises an upper roller body and a lower roller body which are oppositely arranged, and a mill draw rod, wherein two ends of the upper roller body are connected with an upper roller neck, the upper roller neck is arranged on an upper roller bearing block, two ends of the lower roller body are connected with a lower roller neck, the lower roller neck is arranged on a lower bearing block, the mill draw rod penetrates through the upper roller bearing block and the lower roller bearing block and is connected with the upper roller neck and the lower roller neck, the wall thickness on the lower portion of the upper roller bearing block is 7.8 to 8.0% of the diameter of the upper roller neck, and the wall thickness of the lower roller bearing block is 8.0 to 8.2% of the diameter of the lower roller neck, and the length of the mill draw rod is 7.3 to 7.5 times of the diameter of the upper roller neck. The structure of the utility model is adopted, the use range of the roller diameter can be increased, and the adaptability of the mill to products can be improved. Mills with smaller specifications can be selected on a tandem rolling production line, the standby machine number and standby part number of the mill can be reduced, and the weight of the equipment can be alleviated, and the equipment investment can be reduced.
Description
Technical field
The utility model belongs to the steel rolling technical field, particularly a kind of short stress path rolling mill that is applied in the rolling bar production process.
Background technology
Along with steel rolling continuous advancement in technology and the user raising to the required precision of bar product size, short stress path rolling mill more and more is applied on the rolling bar production line.Short stress path rolling mill mainly by milling train working stand, rolling mill base, Traverse Displacement Unit, milling train locking device, transmission connecting shaft, connect shaft tray, associating reduction box, main motor, shaft coupling, motor base etc. and form.The milling train working stand is made up of bearing block, pull bar roll, screwdown gear, axial adjusting device, guide crossbeam etc.The major advantage of short stress path rolling mill has: line of tension is short, mill stiffness height, product size precision height; Symmetry is adjusted roll gap, and roll line is constant; The roll change of complete machine frame, roll changing time is short, rolling line operating rate height.
Mill rolls footpath adjusting range is an important indicator of milling train.Roller footpath adjusting range is big more, and milling train can adapt to the more products specification more, has also saved roll simultaneously, has reduced production cost of products.
The main purpose of bar continuous rolling production line is that the billet rolling with big section becomes light-gauge bar product, when selecting milling train for use, just need the consideration billet bloom size to select the milling train of suitable specification roll for use,, generally need select 4～5 kinds of specification milling trains for use according to steel billet specification and product size.Standby like this milling train quantity and spare part quantity are just very big.Mill rolls footpath adjusting range is generally nominal roller footpath ± 5% in the prior art, and the roll of using little just can only be handled as steel scrap, has improved the rolling cost of steel; The milling train opening degree is little, is not suitable for using under the situation of the little roll-force of the big opening degree of needs; Milling train weight is bigger, has improved construction investment.
The utility model content
The purpose of this utility model is the defective at above-mentioned prior art, and a kind of, purposes wide, weight of equipment light short stress path rolling mill big to application range of products is provided.
The technical scheme taked of the utility model is to achieve these goals: a kind of short stress path rolling mill, comprise be oppositely arranged on, the lower roll body of roll, the milling train pull bar, the two ends of the described top roll body of roll connect the top roll roll neck, described top roll roll neck is arranged on the roll bearing seat, the two ends of the described lower roll body of roll connect the lower roll roll neck, described lower roll roll neck is arranged on the bottom roll bearing block, described milling train pull bar passes, on bottom roll bearing block connects, the lower roll roll neck, the described bottom wall thickness of going up roll bearing seat is 7.8～8.0% of a top roll roll neck diameter, the top wall thickness of described bottom roll bearing block is a lower roll roll neck 8.0～8.2%, and the length of described milling train pull bar is 7.3～7.5 times of top roll roll neck diameter.
The diameter of described top roll roll neck is identical with the diameter of lower roll roll neck, the described bottom wall thickness of going up roll bearing seat is 7.9% of a top roll roll neck diameter, the top wall thickness of described bottom roll bearing block is a lower roll roll neck 8.1%, and the length of described milling train pull bar is 7.4 times of top roll roll neck diameter.
The beneficial effects of the utility model are: key problem in technology of the present utility model improves milling train pull bar and bearing block exactly, makes the roll diameter of roller scope of application strengthen, and has improved milling train to the adaptation of product.
1. the roll diameter of roller scope of application increases, and milling train is increased the section scope of institute's rolled products, makes this milling train can adapt to steel products production widely;
2. on continuous rolling production line, can select the still less milling train of specification for use, reduce the standby host quantity and the spare part quantity of milling train;
3. can alleviate weight of equipment, reduce equipment investment.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
1-top roll roll neck 2-goes up the roll bearing seat 3-milling train pull bar 4-top roll body of roll 5-lower roll roll neck 6-bottom roll bearing block 7-lower roll body of roll.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
Referring to Fig. 1, a kind of short stress path rolling mill, comprise be oppositely arranged on, the lower roll body of roll 4,7, milling train pull bar 3, the two ends of the top roll body of roll 4 connect top roll roll neck 1, top roll roll neck 1 is arranged on the roll bearing seat 2, the two ends of the lower roll body of roll 7 connect lower roll roll neck 5, lower roll roll neck 5 is arranged on the bottom roll bearing block 6, milling train pull bar 3 passes, bottom roll bearing block 2,6 connect, lower roll roll neck 1,5, the bottom wall thickness of last roll bearing seat 2 is 7.9% of a top roll roll neck diameter, the top wall thickness of bottom roll bearing block 6 is a lower roll roll neck 8.1%, and the length of milling train pull bar 3 is 7.4 times of top roll roll neck diameter.
Structure of the present utility model reduces the bearing block size, and suitably increases pull bar length, and when the roll barrel diameter reduced, bearing block can not press against together yet, thereby has guaranteed to make the use in the pony roll footpath of roll; And roll diameter of roller increases, and needs to be guaranteed by suitably increasing milling train pull bar length.
The advantage of the utility model embodiment is as follows:
1. adopt milling train of the present utility model, because this rolling mill roll size range is big, big to the rolling rolled piece section accommodation of institute, selected like this rolled piece specification just can reduce 1～2 kind in milling train, only adjusts roll diameter of roller.Reduce the specification quantity of standby milling train and the milling train quantity of producing spare part, thereby reduced rolling cost.
2. in the production of belt steel product, vertical miller need be selected the milling train of big opening degree for use, and less demanding to the draught pressure of milling train.Select the following time of situation of the milling train of big opening degree, little roll-force for use at this needs, milling train of the present utility model is more suitable for.Because this mill rolls footpath accommodation is big, just can reduce roll diameter of roller, the opening degree of milling train is increased, because the draught pressure that needs milling train to bear is little, so the intensity of milling train roll neck can meet the demands.
Above-described embodiment, the utility model specific embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection domain of the present utility model.
Claims (2)
1. short stress path rolling mill, comprise be oppositely arranged on, the lower roll body of roll, the milling train pull bar, the two ends of the described top roll body of roll connect the top roll roll neck, described top roll roll neck is arranged on the roll bearing seat, the two ends of the described lower roll body of roll connect the lower roll roll neck, described lower roll roll neck is arranged on the bottom roll bearing block, described milling train pull bar passes, on bottom roll bearing block connects, the lower roll roll neck, it is characterized in that: the described bottom wall thickness of going up roll bearing seat is 7.8～8.0% of a top roll roll neck diameter, the top wall thickness of described bottom roll bearing block is a lower roll roll neck 8.0～8.2%, and the length of described milling train pull bar is 7.3～7.5 times of top roll roll neck diameter.
2. a kind of short stress path rolling mill according to claim 1, it is characterized in that, the diameter of described top roll roll neck is identical with the diameter of lower roll roll neck, the described bottom wall thickness of going up roll bearing seat is 7.9% of a top roll roll neck diameter, the top wall thickness of described bottom roll bearing block is a lower roll roll neck 8.1%, and the length of described milling train pull bar is 7.4 times of top roll roll neck diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202226384U CN201493307U (en) | 2009-09-09 | 2009-09-09 | Short stress strand mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202226384U CN201493307U (en) | 2009-09-09 | 2009-09-09 | Short stress strand mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201493307U true CN201493307U (en) | 2010-06-02 |
Family
ID=42436517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202226384U Expired - Fee Related CN201493307U (en) | 2009-09-09 | 2009-09-09 | Short stress strand mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201493307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013117096A1 (en) * | 2012-02-08 | 2013-08-15 | 中冶赛迪工程技术股份有限公司 | Short stress line multi-roller straightening machine |
-
2009
- 2009-09-09 CN CN2009202226384U patent/CN201493307U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013117096A1 (en) * | 2012-02-08 | 2013-08-15 | 中冶赛迪工程技术股份有限公司 | Short stress line multi-roller straightening machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20180909 |