CN205518990U - Rolling mill roll gap regulation mechanism - Google Patents
Rolling mill roll gap regulation mechanism Download PDFInfo
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- CN205518990U CN205518990U CN201521065831.3U CN201521065831U CN205518990U CN 205518990 U CN205518990 U CN 205518990U CN 201521065831 U CN201521065831 U CN 201521065831U CN 205518990 U CN205518990 U CN 205518990U
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Abstract
The utility model relates to a rolling mill roll gap regulation mechanism, include: the lower guide roller support that both ends link to each other with the bottom bearing frame respectively, rotationally set up the lower guide roller on the lower guide roller support, both ends link to each other with the upper shaft bearing respectively, and the upper guide roller support that corresponds with the lower guide roller support, rotationally set up the upper guide roller on the upper guide roller support, wherein, the bearing frame screw thread passes through inlayer sleeve and lead screw threaded connection, outer telescopic bottom is passed through the sphere sleeve gasket and is offseted with the inlayer sleeve, balanced nut and threaded connection is on the lead screw, passing through the lid cover, establish on the lead screw and the lower extreme links firmly with outer sleeve, it has the pretension spring to pass through between lid and the balanced nut. Set up on the bearing frame through guide roller support, can holding control deflector roll clearance when adjustment roll gap to ascending elasticity is exerted to passing through the lid to the pretension spring, and this elasticity will be through on passing through lid transmission to outer sleeve, then transmits to the inlayer sleeve on through outer sleeve, draws the inlayer sleeve with elimination screw clearance to lifting.
Description
Technical field
This utility model relates to technical field of metallurgical manufacturing, particularly to a kind of mill roll-gap guiding mechanism.
Background technology
System on Rolling Steel needs use milling train, it is generally the case that steel roll by entering roll after the deflector roll of guide and guards.In prior art, when needing the rolled piece processing other specifications, roll seam is typically adjusted by milling train by screw mandrel slide block mechanism, so that it meets Production requirement, and existing guide and guards, its deflector roll gap can not be adjusted, it is necessary to changes the guide and guards of respective model, complex operation and affect production efficiency.
In addition, owing to the roll-force in System on Rolling Steel is relatively big, when wire rod thread coordinates, produced thread pitch must consider, otherwise thread pitch brings the biggest impact will to steel rolling operation.In order to eliminate thread pitch, the most commonly used way is to arrange elastic gel between screw mandrel and roll chock sleeve, offsets sleeve by the elastic force of elastic gel and coordinates produced thread pitch with screw mandrel.
It is well known that, elastic gel applying working condition is the harshest, is not suitable for too high and too low temperature, simultaneously as acted on by alternate load, elastic gum is known from experience the most aging, and service life is the ofest short duration, changes elastic gum frequently and knows from experience increase steel rolling cost greatly.
Therefore, how can provide a kind of mill roll-gap adjusting means, it is possible to adjust roll and the roll gap of deflector roll simultaneously, and there is the reliable and stable and pretension balance system of length in service life, ensure being smoothed out of steel rolling operation, become current those skilled in the art and need badly and solve the technical problem that.
Utility model content
The purpose of this utility model is to provide a kind of mill roll-gap guiding mechanism, to reach to adjust the roll gap of roll and deflector roll simultaneously, and has the reliable and stable and pretension balance system of length in service life, it is ensured that the purpose being smoothed out of steel rolling operation.
For reaching above-mentioned purpose, this utility model following technical scheme of offer:
A kind of mill roll-gap guiding mechanism, including:
The lower guide roll support that two ends are connected with bottom bearing block respectively, described lower guide roll support is provided with rotating lower guide roll；
Two ends are connected with upper shaft bearing and the upper guide roller support corresponding with described lower guide roll support respectively, and described upper guide roller support is provided with rotating upper deflector roll；
Screw mandrel；
The pretension balance system being arranged between bottom bearing block and/or upper shaft bearing and described screw mandrel, described pretension balance system includes:
The inner layer sleeve being connected in described bottom bearing block and/or described upper shaft bearing and be connected with described wire rod thread；
Being set in the outer layer sleeve on described screw mandrel, the bottom of described outer layer sleeve is offseted with described inner layer sleeve by sleeve gasket, and one end that described sleeve gasket contacts with described inner layer sleeve is sphere；
It is threaded on described screw mandrel, and constitutes the balance nut of screw mandrel slide block mechanism with described screw mandrel；
It is set on described screw mandrel, and the transparent cover that lower end is connected with described outer layer sleeve, described balance nut is located at therein by described transparent cover；
Two ends offset with described transparent cover and described balance nut respectively, and are in the preloading spring of compressive state.
Preferably, described screw mandrel rotates under drive mechanism drives, and described drive mechanism includes:
Drive motor, the output shaft of described driving motor is provided with driving worm screw；
Gear-box, includes in described gear-box:
The worm gear coordinated with described driving worm-drive, described worm gear is provided with driving gear；
Engage with described driving gear, and be connected in the driven gear on described screw mandrel.
Preferably, described drive mechanism includes:
Hydraulic motor, the output shaft of described hydraulic motor is provided with driving worm screw；
Gear-box, includes in described gear-box:
The worm gear coordinated with described driving worm-drive, described worm gear is provided with driving gear；
Engage with described driving gear, and be connected in the driven gear on described screw mandrel.
Preferably, described gear-box includes two, and the described driven gear in two described gear-boxes is fixing with the described screw mandrel at two ends respectively is connected, described driving motor includes two, and the driving worm screw of two described driving motors coordinates with the described worm-drive in two described gear-boxes respectively.
Preferably, two coaxial described driving worm screws it are provided with on the output shaft of described driving motor, described gear-box includes two, and the described driven gear in two described gear-boxes is fixing with the described screw mandrel at two ends respectively is connected, two described drives worm screws to coordinate with the described worm-drive in two described gear-boxes respectively.
Preferably, described bottom bearing block is fixed bearing block, and described upper shaft bearing is threaded on rotating screw mandrel.
Preferably, form annular installation cavity between described transparent cover and described balance nut, in described annular installation cavity, be evenly arranged with multiple described preloading spring along self circumference.
Preferably, also include being connected on described balance nut, and the guide post between described balance nut and described transparent cover, described preloading spring is arranged on described guide post.
Preferably, described transparent cover lower end is provided with the mounting flange of annular, being provided with on described bearing block and be available for the mounting groove that described mounting flange embeds, the described mounting flange of inner side embeds in described mounting groove, and the described mounting flange in outside is connected with described outer layer sleeve bolt.
Preferably, the sleeve gasket being arranged between the bottom of described inner layer sleeve and described outer layer sleeve is also included.
As can be seen here, in mill roll-gap guiding mechanism disclosed in this utility model, lower guide roll support is connected with bottom bearing, and upper guide roller support is connected with upper shaft bearing, and bottom bearing block and/or upper shaft bearing are threaded in rotationally on screw mandrel.
Screw mandrel rotates forward or reversely rotates, the upper shaft bearing being threaded on screw mandrel and/or bottom bearing block are by the axial up and down motion along screw mandrel, this is located remotely from each other driving the roll in bottom bearing block and/or upper shaft bearing and upper guide roller support or close with the upper lower guide roll on lower guide roll support, thus realize the adjustment of roll and deflector roll gap, simultaneously in order to eliminate the thread pitch between bearing block and screw mandrel, mill roll-gap guiding mechanism disclosed in this utility model also has pretension balance system, this pretension balance system includes inner layer sleeve, outer layer sleeve, balance nut, transparent cover and preloading spring, wherein, inner layer sleeve is connected on bearing block and is connected with wire rod thread；Outer layer sleeve is set on screw mandrel, and the bottom of outer layer sleeve is offseted with inner layer sleeve by sleeve gasket, and one end that sleeve gasket contacts with inner layer sleeve is sphere；Balance nut is threaded on screw mandrel and constitutes screw mandrel slide block mechanism with screw mandrel；Transparent cover is set on screw mandrel and lower end is connected with outer layer sleeve, and balance nut is located at therein by transparent cover；Preloading spring two ends offset with transparent cover and balance nut respectively and are in compressive state；In use, preloading spring applies elastic force upwards to transparent cover, this elastic force will be transferred on outer layer sleeve by transparent cover, then it is transferred on inner layer sleeve by outer layer sleeve, inner layer sleeve is upwards lifted, under the effect of this elastic force, will be eliminated with roll-force thread pitch in the same direction between inner layer sleeve and screw mandrel, this has just been effectively ensured the rolling quality of steel；Simultaneously compared to elastic gel, spring does not has strict requirements for applying working condition, and subject range is wider, works the most reliable, and it is less likely to occur aging simultaneously, and therefore the service life of this pretension balance system is longer.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the overall structure schematic diagram of milling train disclosed in this utility model embodiment；
Fig. 2 is the structural scheme of mechanism of drive mechanism disclosed in this utility model embodiment；
Fig. 3 is screw mandrel and the cross-sectional schematic of bearing block attachment structure of roll side in this utility model embodiment；
Fig. 4 is the close-up schematic view of A in Fig. 3.
Detailed description of the invention
Core of the present utility model is to provide a kind of mill roll-gap guiding mechanism, to reach to adjust the roll gap of roll and deflector roll simultaneously, and has the reliable and stable and pretension balance system of length in service life, it is ensured that the purpose being smoothed out of steel rolling operation.
In order to make those skilled in the art be more fully understood that this utility model scheme, the utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.
Refer to Fig. 1-Fig. 4, Fig. 1 is the overall structure schematic diagram of milling train disclosed in this utility model embodiment, Fig. 2 is the structural scheme of mechanism of drive mechanism disclosed in this utility model embodiment, Fig. 3 is screw mandrel and the cross-sectional schematic of bearing block attachment structure of roll side in this utility model embodiment, and Fig. 4 is the close-up schematic view of A in Fig. 3.
Mill roll-gap guiding mechanism disclosed in this utility model includes:
Lower guide roll support, lower guide roll, upper guide roller support, upper deflector roll, as shown in fig. 1, the two ends of lower guide roll support are connected with bottom bearing block 1 respectively, and lower guide roll is rotatably arranged in lower guide roll support；Upper guide roller support is correspondingly arranged with lower guide roll support, and the two ends of upper guide roller support are connected with upper shaft bearing 2 respectively, and upper deflector roll is rotatably arranged on guide roller support.Wherein, bottom bearing block 1 and/or upper shaft bearing 2 are threaded on rotating screw mandrel 3.
In the above-described embodiments, bottom bearing block 1 and upper shaft bearing 2 can be arranged on screw mandrel 3, the rotation direction of the screw thread matched with upper shaft bearing 2 and bottom bearing block 1 on screw mandrel 3 in such cases should be contrary, is capable of close to each other with both guarantees and is located remotely from each other；Can also upper shaft bearing 2 be fixed bearing block, bottom bearing block 1 be arranged on screw mandrel 3；Or bottom bearing block 1 is fixed bearing block, upper shaft bearing 2 is arranged on screw mandrel 3.
Rotating and reverse of screw mandrel 3, will can drive upper shaft bearing 2 and/or bottom bearing block 1 axially moving up and down along screw mandrel 3.Two rolls made in bottom bearing block and/or upper shaft bearing and upper lower guide roll are located remotely from each other or close by this, thus realize the adjustment of roll and deflector roll gap.As can be seen here, disclosed in above-described embodiment roll-separating mechanism, it is possible to simultaneously roll seam and deflector roll gap are adjusted.
In order to avoid producing thread pitch between screw mandrel 3 and bearing block, affect being normally carried out of steel rolling operation, in this utility model embodiment, mill roll-gap guiding mechanism also includes that pretension balances system, pretension balance system includes inner layer sleeve 8, outer layer sleeve 9, balance nut 7, transparent cover 6 and preloading spring 11, wherein, inner layer sleeve 8 is connected on bearing block and is connected with wire rod thread；Outer layer sleeve 9 is set on screw mandrel, the bottom of outer layer sleeve 9 is offseted with inner layer sleeve 8 by sleeve gasket, and one end that sleeve gasket contacts with inner layer sleeve 8 is sphere, and one end that sleeve gasket contacts with inner layer sleeve 8 is sphere, under big roll-force, roll, bearing block, screw mandrel 3 can deform, and sphere sleeve gasket can discharge this deformation, in order to improve the service life of bearing；Balance nut 7 is threaded on screw mandrel and constitutes screw mandrel slide block mechanism with screw mandrel；Transparent cover 6 is set on screw mandrel and lower end is connected with outer layer sleeve 9, and balance nut 7 is located at therein by transparent cover 6；Preloading spring 11 two ends offset with transparent cover 6 and balance nut 7 and are in compressive state respectively；
In use, preloading spring 11 applies elastic force upwards to transparent cover 6, this elastic force will be transferred on outer layer sleeve 9 by transparent cover 6, then it is transferred on inner layer sleeve 8 by outer layer sleeve 9, inner layer sleeve 8 is upwards lifted, under the effect of this elastic force, will be eliminated with roll-force thread pitch in the same direction between inner layer sleeve 8 and screw mandrel, this has just been effectively ensured the rolling quality of steel；Simultaneously compared to elastic gel, spring does not has strict requirements for applying working condition, and subject range is wider, works the most reliable, and it is less likely to occur aging simultaneously, and therefore the service life of this pretension balance system is longer
In this utility model embodiment, by Fig. 1 it can be seen that screw mandrel includes two, the upper shaft bearing of the most corresponding left and right sides of two screw mandrels and bottom bearing block.Drive mechanism can be two driving motors, and the two drives motor to be connected with two screw mandrels respectively.
In order to optimize such scheme further, promote the stability during roll gap regulation, driving means includes that two are provided with the driving motor 4 driving worm screw 51, in addition also add two gear-boxes 5, specifically including in gear-box 5: worm gear 52 and driven gear 53, wherein worm gear 52 coordinates with driving worm screw 51 transmission of two driving motors 4 respectively, and is provided with driving gear on worm gear 52, driven gear 53 engages with driving gear, and is connected on screw mandrel 3.
Although the technical scheme in above-described embodiment is capable of the adjustment of roll gap, but this kind of type of drive also exists and is not easy to ensure the shortcoming that the bearing block at two ends is synchronized with the movement all the time.
For this this utility model additionally provides the prioritization scheme of a kind of drive mechanism, in the present embodiment, drive and be provided with two coaxial driving worm screws 51 on the output shaft of motor 4, and gear-box 5 also includes two, driven gear 53 in two gear-boxes 5 is fixing with the screw mandrel 3 at two ends respectively to be connected, two drive worm screw 51 to coordinate, as shown in Figure 2 with worm gear 52 transmission in two gear-boxes 5 respectively.When driving motor 4 to rotate, rotary motion will be transferred directly to the driving worm screw 51 of both sides, worm screw 51 is driven to drive worm gear 52 to rotate, worm gear 52 drives driven gear 53 to rotate again, and driven gear 53 and screw mandrel 3 are connected, which achieves the purpose of upper shaft bearing 2 motion synchronizing to drive the left and right sides by a driving motor 4.
It will be appreciated by persons skilled in the art that driving motor 4 can also be substituted by rotating power machineries such as hydraulic motors.
As shown in Figure 3, the installation cavity of annular is defined between transparent cover 6 and balance nut 7, in order to ensure that preloading spring 11 can provide enough elastic force to lift inner layer sleeve 8, the present embodiment is preferably provided with multiple preloading spring 11 in annular installation cavity, and the circumference of these preloading spring 11 annularly installation cavitys is uniformly distributed.
In order to be further ensured that the service life of preloading spring 11, preloading spring 11 in the present embodiment uses disc spring, owing to disc spring has, load is big, stroke is short, required installing space is little, be applied in combination convenient and keeps in repair the easy feature that changes the outfit, therefore using the pretension balance system after disc spring, its service life and functional reliability are further enhanced.
Further, in order to ensure that preloading spring 11 keeps stable in telescopic process, the present embodiment is also provided with guide post 10, as shown in Figure 4, guide post 10 is connected on balance nut 7, and between balance nut 7 and transparent cover 6, preloading spring 11 is located on guide post 10, in telescopic process, certainly keep stable attitude with guarantee.
As shown in Figures 3 and 4, in pretension balance system disclosed in the utility model, the lower end of transparent cover 6 is provided with the mounting flange of annular, it is provided with on bearing block and is available for the mounting groove that mounting flange embeds, the mounting flange of inner side embeds in mounting groove, and the mounting flange in outside is connected with outer layer sleeve 9 bolt.
Certainly, the upper surface of outer layer sleeve 9 can also be set to flange face by those skilled in the art, and the lower end of transparent cover 6 is directly connected with the flange face bolt of outer layer sleeve 9.
Further, in pretension balance system disclosed in this utility model embodiment, it is additionally provided with sleeve gasket between bottom and the outer layer sleeve 9 of inner layer sleeve 8, in order to be further ensured that the stability that power is transmitted, sleeve gasket is the conical surface for the one end contacted with inner layer sleeve 8, and the center of this conical surface is the highest, as shown in Figure 3.
Above mill roll-gap guiding mechanism provided by the utility model is described in detail.Principle of the present utility model and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; on the premise of without departing from this utility model principle, it is also possible to this utility model is carried out some improvement and modification, these improve and modification also falls in this utility model scope of the claims.
Claims (10)
1. a mill roll-gap guiding mechanism, it is characterised in that including:
The lower guide roll support that two ends are connected with bottom bearing block (1) respectively, described lower guide roll support is provided with rotating lower guide roll；
Two ends are connected with upper shaft bearing (2) and the upper guide roller support corresponding with described lower guide roll support respectively, and described upper guide roller support is provided with rotating upper deflector roll；
Screw mandrel (3)；
The pretension balance system being arranged between bottom bearing block (1) and/or upper shaft bearing (2) and described screw mandrel (3), described pretension balance system includes:
The inner layer sleeve (8) being connected in described bottom bearing block (1) and/or described upper shaft bearing (2) and threaded with described screw mandrel (3)；
The outer layer sleeve (9) being set on described screw mandrel (3), the bottom of described outer layer sleeve (9) is offseted with described inner layer sleeve (8) by sleeve gasket, and one end that described sleeve gasket contacts with described inner layer sleeve (8) is sphere；
It is threaded on described screw mandrel (3), and constitutes the balance nut (7) of screw mandrel slide block mechanism with described screw mandrel (3)；
It is set on described screw mandrel (3), and the transparent cover (6) that lower end is connected with described outer layer sleeve (9), described balance nut (7) is located at therein by described transparent cover (6)；
Two ends offset with described transparent cover (6) and described balance nut (7) respectively, and are in the preloading spring (11) of compressive state.
Roll-separating mechanism the most according to claim 1, it is characterised in that described screw mandrel rotates under drive mechanism drives, and described drive mechanism includes:
Drive motor (4), the output shaft of described driving motor (4) is provided with driving worm screw (51)；
Gear-box (5), described gear-box includes in (5):
With the described worm gear (52) driving worm screw (51) transmission to coordinate, described worm gear is provided with driving gear on (52)；
Engage with described driving gear, and the driven gear (53) being connected on described screw mandrel (3).
Roll-separating mechanism the most according to claim 1, it is characterised in that described screw mandrel rotates under drive mechanism drives, and described drive mechanism includes:
Hydraulic motor, the output shaft of described hydraulic motor is provided with driving worm screw (51)；
Gear-box (5), described gear-box includes in (5):
With the described worm gear (52) driving worm screw (51) transmission to coordinate, described worm gear is provided with driving gear on (52)；
Engage with described driving gear, and the driven gear (53) being connected on described screw mandrel (3).
4. according to the roll-separating mechanism described in Claims 2 or 3, it is characterized in that, described gear-box (5) includes two, and the described driven gear (53) in two described gear-boxes (5) is fixing with the described screw mandrel (3) at two ends respectively is connected, described driving motor (4) includes two, and the driving worm screw (51) of two described driving motors (4) coordinates with described worm gear (52) transmission in two described gear-boxes (5) respectively.
5. according to the roll-separating mechanism described in Claims 2 or 3, it is characterized in that, two coaxial described drivings worm screw (51) it are provided with on the output shaft of described driving motor (4), described gear-box (5) includes two, and the described driven gear (53) in two described gear-boxes (5) is fixing with the described screw mandrel (3) at two ends respectively is connected, two described drives worm screw (51) to coordinate with described worm gear (52) transmission in two described gear-boxes (5) respectively.
Roll-separating mechanism the most according to claim 1, it is characterised in that described bottom bearing block (1) is fixed bearing block, described upper shaft bearing (2) is threaded on rotating screw mandrel (3).
Roll-separating mechanism the most according to claim 1, it is characterized in that, form annular installation cavity between described transparent cover (6) and described balance nut (7), in described annular installation cavity, be evenly arranged with multiple described preloading spring (11) along self circumference.
Roll-separating mechanism the most according to claim 7, it is characterized in that, also include being connected on described balance nut (7), and the guide post (10) being positioned between described balance nut (7) and described transparent cover (6), described preloading spring (11) is arranged on described guide post (10).
Roll-separating mechanism the most according to claim 1, it is characterized in that, described transparent cover (6) lower end is provided with the mounting flange of annular, it is provided with on described bearing block and is available for the mounting groove that described mounting flange embeds, the described mounting flange of inner side embeds in described mounting groove, and the described mounting flange in outside is connected with described outer layer sleeve (9) bolt.
Roll-separating mechanism the most according to claim 1, it is characterised in that also include the sleeve gasket being arranged between the bottom of described inner layer sleeve (8) and described outer layer sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521065831.3U CN205518990U (en) | 2015-12-19 | 2015-12-19 | Rolling mill roll gap regulation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521065831.3U CN205518990U (en) | 2015-12-19 | 2015-12-19 | Rolling mill roll gap regulation mechanism |
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| CN205518990U true CN205518990U (en) | 2016-08-31 |
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| CN201521065831.3U Active CN205518990U (en) | 2015-12-19 | 2015-12-19 | Rolling mill roll gap regulation mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414199A (en) * | 2015-12-19 | 2016-03-23 | 重庆麦拓科技有限公司 | Roll gap adjusting mechanism of rolling mill |
| CN107052058A (en) * | 2017-03-01 | 2017-08-18 | 中冶华天南京工程技术有限公司 | Axial pretightening pull rod device |
| CN116766663A (en) * | 2023-07-13 | 2023-09-19 | 山西卓越水泥有限公司 | Roll gap online adjustment device of roll squeezer |
-
2015
- 2015-12-19 CN CN201521065831.3U patent/CN205518990U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414199A (en) * | 2015-12-19 | 2016-03-23 | 重庆麦拓科技有限公司 | Roll gap adjusting mechanism of rolling mill |
| CN107052058A (en) * | 2017-03-01 | 2017-08-18 | 中冶华天南京工程技术有限公司 | Axial pretightening pull rod device |
| CN116766663A (en) * | 2023-07-13 | 2023-09-19 | 山西卓越水泥有限公司 | Roll gap online adjustment device of roll squeezer |
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Effective date of registration: 20200121 Address after: 243000 building 3, No. 669, Chaoshan West Road, Ma'anshan economic and Technological Development Zone (Demonstration Park), Ma'anshan City, Anhui Province Patentee after: Anhui Sinosteel Nuotai Engineering Technology Co., Ltd Address before: 400030 C 4-1, University City Education and technology promotion center, 1 University Town South Road, Shapingba District, Chongqing Patentee before: CHONGQING MAITUO TECHNOLOGY CO., LTD. |