CN202185455U - Roll gap adjusting device for rolling mill - Google Patents
Roll gap adjusting device for rolling mill Download PDFInfo
- Publication number
- CN202185455U CN202185455U CN2011202239451U CN201120223945U CN202185455U CN 202185455 U CN202185455 U CN 202185455U CN 2011202239451 U CN2011202239451 U CN 2011202239451U CN 201120223945 U CN201120223945 U CN 201120223945U CN 202185455 U CN202185455 U CN 202185455U
- Authority
- CN
- China
- Prior art keywords
- pull bar
- nut
- adjusting device
- roll
- roll gap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The utility model discloses a roll gap adjusting device which comprises a pull rod (4) with a transmission mechanism, upper and lower spherical pads (9 and 18) as well as upper and lower adjusting nuts (8 and 13) which are arranged on two outer sides of the upper and lower spherical pads and provided with inner and outer threads, and balancing components, wherein upper and lower locking nuts (7 and 14) as well as upper and lower balancing components (6 and 15) are respectively arranged on the outer sides of the upper and lower adjusting nuts; the upper and lower locking nuts (7 and 14) are connected together with the upper and lower adjusting nuts (8 and 13) through upper and lower locating pins (20) respectively; and the requirement is that gaps exist between the upper locking nut (7) and the upper adjusting nut (8) as well as between the lower locking nut (14) and the lower adjusting nut (13). The roll gap adjusting device can eliminate the gaps between the threads, is long in service life and convenient to install and adjust, and can be applied to a short stress path rolling mill; and the rolling is stable, the whole rigidity is great, the rolling precision is high, and the expanding of the product standard is facilitated.
Description
Technical field
The utility model relates to a kind of roll gap adjusting device, particularly relates to a kind of roll gap adjusting device that can regulate the centre distance of the upper and lower roll of milling train.
Background technology
The balancing component that existing mill roll-gap adjusting device comprises pull bar, be sleeved on the upper and lower adjusting nut with internal and external screw thread and the transmission mechanism on the pull bar and be fixedly linked with upper and lower roll chock.Balancing component is elastic colloid or hydraulic cylinder; Its elastic colloid or hydraulic cylinder are that weight is set the pretension equilibrant force according to roller; Telescopic moving through its piston rod; Eliminate the thread pitch between adjusting nut and the pull bar, reduce the spring of adjusting nut and the thread pitch breaker roll generation of pull bar when rolling.The upper and lower ball ring of roll-separating mechanism can make the certain angle of upper and lower roll chock self-adjusting respectively, avoids upper and lower roll chock to contact with the rigidity of pull bar, and bearing block is stressed better.
Its weak point is: because in the operation of rolling, roll gap constantly changes, rolling mill vibration is big; The piston rod telescopic moving adjustment of balancing component is frequent; Its elastic colloid fatiguability or hydraulic cylinder easy oil leakage cause the thread pitch between pull bar and the adjusting nut normally to eliminate, and have increased the spring amount of roll; Influence rolling accuracy, also influenced the service life of balancing component.Again because in the operation of rolling, when the milling train opening degree more hour, the decrement of its balancing component piston rod is big more; The equilibrant force of its balancing component is big more, and the pressure between pull bar and the adjusting nut is also big more, and it is also big more to eliminate the required driving torque of this pressure; Not enough " pressing motionless " phenomenon of actuator drives ability often occurs, that is: pull bar can't normally rotate, and upper and lower roll can't online normal move up and down; Satisfy not rolling mill practice, influenced whole steel rolling program.The 3rd, because balancing component passes limited block, be installed between the upper and lower roll chock externally, poor working environment, installing space is little, dismounting, maintenance inconvenience.
The utility model content
The purpose of the utility model provides a kind of thread pitch that can eliminate between pull bar and the adjusting nut, and the roll gap adjusting device that is used for milling train easy to adjust is installed.
The described roll gap adjusting device of the utility model comprises pull bar, is installed in the upper and lower ball ring on the said pull bar and is positioned at the upper and lower adjusting nut and the balancing component with internal and external screw thread of upper and lower ball ring two outer ends.Wherein: upper and lower locking nut and upper and lower balancing component are set being positioned at said upper and lower adjusting nut outer end respectively; Said upper and lower locking nut is sleeved on the said pull bar; Link together with upper and lower adjusting nut respectively by upper and lower alignment pin, between said upper locking nut and the adjusted nut, have the gap between lower locking nut and the following adjusting nut.
The described roll gap adjusting device of the utility model, wherein: the adjacent of ball ring and topping roll bearing block is provided with the ball ring alignment pin on said, at the adjacent of said lower peripheral surface pad and bottom roll bearing block lower peripheral surface pad alignment pin is set.
The described roll gap adjusting device of the utility model, wherein: the said balancing component of going up is damping element or spring with following balancing component.
The described roll gap adjusting device of the utility model, wherein: said damping element is a combined type butterfly damping element, is nested with on said pull bar or is centered around said pull bar outer rim by 2～4 to become the box-like arrangement of array group.
The described roll gap adjusting device of the utility model, wherein: said spring is dish spring or helical spring, is nested with on said pull bar, or is centered around said pull bar outer rim by 2～4 and becomes the box-like arrangement of array group.
The described roll gap adjusting device that is used for milling train of the utility model has the following advantages and effect:
1, adopt said structure, the thread pitch between the thread pitch between upper locking nut and the pull bar and adjusted nut and the pull bar is oppositely arranged, and the thread pitch between the thread pitch between lower locking nut and the pull bar and following adjusting nut and the pull bar is oppositely arranged.That is: guarantee active force E and the directed force F equal and opposite in direction between adjusting nut and the pull bar, in the opposite direction between locking nut and the pull bar; The directed force F that active force E between locking nut and the pull bar can be conditioned between nut and the pull bar is offset; Make pull bar only bear more stable roll-force; Guarantee that transmission device can driven, upper and lower roll can online normal move up and down.
2, balancing component is last balancing component and following balancing component; Be positioned near the enclosed cavity that pull bar is, place upper and lower roll chock; That is: go up the balancing component design at the upper locking nut place, following balancing component design is at the lower locking nut place, and balancing component is selected damping element or spring for use; And, eliminate the thread pitch between pull bar and the adjusting nut according to the equilibrant force of the required pretension equilibrant force setting balancing component of roller system of rolling mill weight; When the milling train opening degree changes; Under the acting in conjunction of adjusting nut, locking nut and shock absorber or spring; Equilibrant force is stablized, and has realized the both weight of balance roller system of pull bar, and pull bar steadily rotates in upper and lower roll chock again and drives steady vertical the moving of upper and lower roll; Balancing component is also eliminated the thread pitch between pull bar and the adjusting nut; What make that milling train in the whole operation of rolling embodies all is the intrinsic rigidity of roller system itself, has reduced roll spring amount, has realized steady rolling; The radial rigidity and the rolling accuracy of milling train are improved; Balancing component working environment again is improved, and has prolonged service life, adjustment, easy to maintenance.
3, also designed upper and lower ball ring alignment pin respectively at the ball ring of upper and lower adjusting nut and the adjacent of roll chock; The ball ring alignment pin can guarantee the globality of ball ring and roll chock; Not only make the roll chock force-bearing situation more stable; And ball ring contacts better effects if with the sphere of bearing block; It is more flexible to make roll chock when rolling adapt to the angle of the required adjustment of roll-force, has further improved the radial rigidity and the rolling accuracy of milling train, has also prolonged bearing service life.
In a word, the described roll gap adjusting device of the utility model, rational in infrastructure; Have the utility model the roll gap adjusting device mill milling steadily, the radial rigidity and the rolling accuracy of milling train be high, for the range of application that enlarges milling train is laid a good foundation.
Description of drawings
Fig. 1 is the described roll gap adjusting device of a utility model structural representation;
To be that the M part is local in the left view of Fig. 1 amplify Fig. 2;
Fig. 3 is that the balancing component of the roll gap adjusting device shown in Fig. 1 is nested with layout and the stress sketch map on pull bar;
Fig. 4 is that the balancing component of the roll gap adjusting device shown in Fig. 1 is centered around layout and the stress sketch map that the pull bar outer rim becomes the box-like arrangement of array group;
Fig. 5 is the described roll gap adjusting device of a utility model stress sketch map.
Wherein: 1 topping roll, 2 topping roll bearing blocks, ball ring alignment pin on 3,4 pull bars, 5 pass through lid, balancing component on 6; 7 upper locking nuts, 8 adjusted nuts, ball ring on 9,10 pull bar installing holes, 11 milling train limited blocks; 12 lower peripheral surface pad alignment pins, 13 times adjusting nuts, 14 lower locking nuts, 15 times balancing components, 16 end caps; 17 bottom roll bearing blocks, 18 lower peripheral surface pads, 19 bottom rolls, alignment pin on 20,21 rack pins.
AA rolling centerline, C cover 5 or the active force of end cap 16 thoroughly, the active force of D upper locking nut 7 or lower locking nut 14, the active force of E upper locking nut 7 or lower locking nut 14, the F adjusted nut 8 or the active force of adjusting nut 13 down, P roll-force.
The specific embodiment
Below in conjunction with accompanying drawing the described specific embodiment that is used for the roll gap adjusting device of milling train of the utility model is described further.
Referring to Fig. 1,2, the described roll gap adjusting device of the utility model comprises pull bar 4, is installed in last ball ring 9, the lower peripheral surface pad 18 on the said pull bar 4 and is positioned at the adjusted nut 8 with internal and external screw thread of 9,18 liang of outer ends of upper and lower ball ring, following adjusting nut 13 and transmission mechanism and balancing component.Wherein: upper locking nut 7, lower locking nut 14 and last balancing component 6, following balancing component 15 are set being positioned at said upper and lower adjusting nut 8,13 outer ends respectively; Said upper locking nut 7, is linked together with adjusted nut 8 by last alignment pin 20 on said pull bar 4 through thread set, has the gap between upper locking nut 7 and the adjusted nut 8; Equally, said lower locking nut 14, is linked together with following adjusting nut 13 by following alignment pin on said pull bar 4 through thread set, has the gap between lower locking nut 14 and the following adjusting nut 13.Like this; Referring to Fig. 5; Active force E equal and opposite in direction between directed force F between said adjusted nut 8 and the pull bar 4 and upper locking nut 7 and the pull bar 4, in the opposite direction; And active force E and the directed force F equal and opposite in direction between following adjusting nut 13 and the pull bar 4, in the opposite direction between lower locking nut 14 and the pull bar 4, thereby 4 on every pull bar in the roll-separating mechanism bears more stable roll-force P.
In addition, adjusted nut 8 is locked with external rack pins 21 or straight pin respectively with following adjusting nut 13.Like this, when roll gap changes, can prevent that adjusted nut 8, following adjusting nut 13 from rotating along with the rotation of pull bar 4, as shown in Figure 2.
For guaranteeing the globality of ball ring and roll chock; Ball ring contacts better effects if with the sphere of upper and lower adjusting nut; The scope of activities of restriction ball ring; Ball ring 9 is provided with ball ring alignment pin 3 with the adjacent of topping roll bearing block 2 on said, at the adjacent of said lower peripheral surface pad 18 and bottom roll bearing block 17 lower peripheral surface pad alignment pin 12 is set; That is: ball ring and roll chock are provided with pin-and-hole, will go up ball ring 9 through alignment pin and become one with topping roll bearing block 2, lower peripheral surface pad 18 with bottom roll bearing block 17.
The said balancing component 6 of going up can be damping element or spring with following balancing component 15.Said damping element is a combined type butterfly damping element, and this combined type butterfly damping element is nested with on said pull bar 4, and is as shown in Figure 3, or is centered around said pull bar 4 outer rims by 2～4 and becomes the box-like arrangement of array group, and is as shown in Figure 4.Said spring is dish spring or spiral spring, and same said dish spring or spiral spring can be nested with on said pull bar 4, and be as shown in Figure 3, also can be to be centered around said pull bar 4 outer rims by 2～4 to become the box-like arrangement of array group, and is as shown in Figure 4.
The utility model roll gap adjusting device can be applied in short stress path rolling mill, and the topping roll 1 of short stress path rolling mill, the centre distance of bottom roll 19 are regulated; Also can be applied in universal mill or compact mill, the centre distance of its roll is regulated.Fig. 1, being shown in 2 are applied in the roll gap adjusting device structure in the short stress path rolling mill.
After the short stress path rolling mill assembling is accomplished; The said built-in ground of the described roll gap adjusting device of the utility model balancing component 6 bears respectively and covers 5 the pretension active force C and the active force D of upper locking nut 8, and every pull bar 4 bears the directed force F of the active force E and the adjusted nut 8 of upper locking nut 7 respectively; Built-in underground balancing element 15 bears the pretension active force C of end cap 16 and the active force D of lower locking nut 14 respectively, and every pull bar 4 bears the directed force F of active force E He the following adjusting nut 13 of lower locking nut 14 respectively; Balance the weight of roller system, eliminate pull bar 4 and upper and lower adjusting nut 8, the thread pitch between 13, as shown in Figure 5.
When the milling train opening degree changes; The transmission mechanism drive stay 4 of described roll gap adjusting device; Because of pull bar 4 and adjusted nut 8, adjusting nut 13 is that internal thread is connected down, adjusted nut 8, adjusting nut 13 is become one through its external screw thread, rack pins 21 and topping roll bearing block 2, bottom roll bearing block 17 down, so when pull bar 4 rotates in the pull bar installing hole 10 of adjusted nut 8, milling train limited block 11 and following adjusting nut 13; Upper and lower adjusting nut the 8, the 13rd does not rotate; Only do vertically and to move, thus pull bar 4 respectively transmission topping roll bearing block 2 move with respect to the vertical upper and lower symmetry of mill stand together with bottom roll bearing block 17, upper and lower roll chock drive topping roll 1, the vertical thereupon upper and lower symmetry of bottom roll 19 move; Regulate the centre distance between topping roll 1 and the bottom roll 19; The gravity of while balancing component balance topping roll and bottom roll, balancing component does not change in the enclosed cavity of upper and lower roll chock, that is: the equilibrant force of balancing component is constant.
Normal when rolling, last balancing component 6 has been eliminated the thread pitch that raises between nut 8 and the pull bar 4, and following balancing component 15 has been eliminated and reduced the thread pitch between nut 13 and the pull bar 4; Under the roll-force effect; What each parts all embodied is the intrinsic rigidity of itself, and the spring of milling train is little, and integral rigidity is big; The operation of rolling is steady, and rolling accuracy is high.And built-in balanced element good work environment, long service life, install easy to adjust.
In addition; Last ball ring alignment pin 3 and lower peripheral surface pad alignment pin 12 not only can guarantee the globality of upper and lower ball ring 9,18 and upper and lower roll chock 2,17; Make roll chock, adjusting nut force-bearing situation more stable; And upward ball ring 3 contacts better effects if with adjusted nut 8, lower peripheral surface pad 18 with the sphere of following adjusting nut 13, and the angle of the required adjustment of roll chock adaptation roll-force is more flexible when rolling, and the roll chock force-bearing situation is better; Further improved the rigidity and the rolling accuracy of milling train, also having prolonged roller is the service life of bearing.
Claims (5)
1. roll gap adjusting device that is used for milling train; Comprise pull bar (4), be installed in the upper and lower ball ring (9,18) on the said pull bar (4) and be positioned at the upper and lower adjusting nut with internal and external screw thread (8,13) and the balancing component of upper and lower ball ring (9,18) two outer ends; It is characterized in that: upper and lower locking nut (7,14) and upper and lower balancing component (6,15) are set being positioned at said upper and lower adjusting nut (8,13) outer end respectively; Said upper and lower locking nut (7,14) is sleeved on the said pull bar (4); Link together with upper and lower adjusting nut (8,13) respectively by upper and lower alignment pin (20), between said upper locking nut (7) and the adjusted nut (8), have the gap between lower locking nut (14) and the following adjusting nut (13).
2. roll gap adjusting device according to claim 1; It is characterized in that: ball ring (9) is provided with ball ring alignment pin (3) with the adjacent of topping roll bearing block (2) on said, at the adjacent of said lower peripheral surface pad (18) and bottom roll bearing block (17) lower peripheral surface pad alignment pin (12) is set.
3. roll gap adjusting device according to claim 1 and 2 is characterized in that: said upward balancing component (6) and following balancing component (15) are damping element or spring.
4. roll gap adjusting device according to claim 3 is characterized in that: said damping element is a combined type butterfly damping element, is nested with on said pull bar (4) or is centered around said pull bar (8) outer rim by 2～4 to become the box-like arrangement of array group.
5. roll gap adjusting device according to claim 3 is characterized in that: said spring is dish spring or helical spring, is nested with on said pull bar (4), or is centered around said pull bar (8) outer rim by 2～4 and becomes the box-like arrangement of array group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202239451U CN202185455U (en) | 2011-06-29 | 2011-06-29 | Roll gap adjusting device for rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202239451U CN202185455U (en) | 2011-06-29 | 2011-06-29 | Roll gap adjusting device for rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202185455U true CN202185455U (en) | 2012-04-11 |
Family
ID=45916929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202239451U Expired - Lifetime CN202185455U (en) | 2011-06-29 | 2011-06-29 | Roll gap adjusting device for rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202185455U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586287A (en) * | 2013-11-15 | 2014-02-19 | 江阴大地装备股份有限公司 | Pull rod type rolling mill |
| CN104550247A (en) * | 2015-01-14 | 2015-04-29 | 中冶华天工程技术有限公司 | Connecting rod telescoping mechanism for screw down gear and screw down gear |
| 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 |
| CN105414192A (en) * | 2015-12-19 | 2016-03-23 | 重庆麦拓科技有限公司 | Rolling mill and pretightening balance system thereof |
| CN105478485A (en) * | 2015-11-19 | 2016-04-13 | 内蒙古包钢钢联股份有限公司 | Method of improving precision of short-stress rolling mill |
| CN106090197A (en) * | 2016-08-24 | 2016-11-09 | 中冶华天南京工程技术有限公司 | A kind of device for eliminating thread clearance and assembly method thereof |
| CN106734244A (en) * | 2016-12-30 | 2017-05-31 | 重庆麦拓科技有限公司 | A kind of milling train and its compound roll-separating mechanism |
| 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 |
| CN110860580A (en) * | 2019-11-05 | 2020-03-06 | 中冶陕压重工设备有限公司 | Device for adjusting gap under pressure |
| CN112547799A (en) * | 2020-11-06 | 2021-03-26 | 太原科技大学 | Special machine for rolling metal polar plate |
-
2011
- 2011-06-29 CN CN2011202239451U patent/CN202185455U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586287A (en) * | 2013-11-15 | 2014-02-19 | 江阴大地装备股份有限公司 | Pull rod type rolling mill |
| CN104550247A (en) * | 2015-01-14 | 2015-04-29 | 中冶华天工程技术有限公司 | Connecting rod telescoping mechanism for screw down gear and screw down gear |
| CN105478485A (en) * | 2015-11-19 | 2016-04-13 | 内蒙古包钢钢联股份有限公司 | Method of improving precision of short-stress rolling mill |
| 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 |
| CN105414192A (en) * | 2015-12-19 | 2016-03-23 | 重庆麦拓科技有限公司 | Rolling mill and pretightening balance system thereof |
| CN106090197A (en) * | 2016-08-24 | 2016-11-09 | 中冶华天南京工程技术有限公司 | A kind of device for eliminating thread clearance and assembly method thereof |
| CN106734244A (en) * | 2016-12-30 | 2017-05-31 | 重庆麦拓科技有限公司 | A kind of milling train and its compound roll-separating mechanism |
| 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 |
| CN110860580A (en) * | 2019-11-05 | 2020-03-06 | 中冶陕压重工设备有限公司 | Device for adjusting gap under pressure |
| CN110860580B (en) * | 2019-11-05 | 2021-06-01 | 中冶陕压重工设备有限公司 | Device for adjusting press gap |
| CN112547799A (en) * | 2020-11-06 | 2021-03-26 | 太原科技大学 | Special machine for rolling metal polar plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202185455U (en) | Roll gap adjusting device for rolling mill | |
| CN101194103B (en) | Wind power installation and method for operating one such wind power installation | |
| CN202165372U (en) | Threaded positioning and locking device | |
| CN202185452U (en) | Short stress path rolling mill | |
| CN102107212B (en) | Micro-scale six-roller mill with static stability | |
| CN104614189B (en) | A kind of radial loaded experimental provision for tire dynamic test | |
| CN203939929U (en) | A kind of accurate worm gearing | |
| CN103630103B (en) | A kind of measurement mechanism of guide vane listrium gap | |
| CN105415972A (en) | Overloading universal wheel | |
| CN106949189A (en) | Autobalance rotor deviation of gravity center rotating shaft causes the bascule of eccentric moment | |
| CN204622004U (en) | A kind of stiffness variable flexible roller device for rotary machine centering | |
| CN102868023A (en) | Satellite antenna pitching adjusting device | |
| CN208780794U (en) | The electric machine testing device of adjustable rotary load is provided | |
| CN204461768U (en) | A kind of tire radial loaded experimental provision | |
| WO2023124969A1 (en) | Friction energy dissipation type wind-resistant support and method | |
| CN101491996A (en) | Heavy-load mini elastic universal wheel | |
| CN105583794B (en) | Turbine rotor rolling wheel support | |
| CN203796895U (en) | Worm gear combination slewing bearing | |
| CN103233978A (en) | Hollow shaft type energy-saving static pressure bearing | |
| CN209354210U (en) | Steam turbine bearing regulating device | |
| CN203146576U (en) | Slewing bearing of zero clearance raceway and slewing driving device of zero clearance raceway | |
| CN102691722A (en) | Two-degree-of-freedom rotary bearing | |
| CN203185989U (en) | Foldable universal wheel | |
| CN204638723U (en) | A kind of multi-roll mill upper driving roller transmission shaft balanced controls | |
| CN201245042Y (en) | Universal wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120411 |