WO2021012762A1 - 快速换辊校平机 - Google Patents
快速换辊校平机 Download PDFInfo
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- WO2021012762A1 WO2021012762A1 PCT/CN2020/090890 CN2020090890W WO2021012762A1 WO 2021012762 A1 WO2021012762 A1 WO 2021012762A1 CN 2020090890 W CN2020090890 W CN 2020090890W WO 2021012762 A1 WO2021012762 A1 WO 2021012762A1
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- roll
- roller
- leveling
- roller system
- leveling machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
Definitions
- the invention relates to the technical field of leveling machines, in particular to a quick roll change leveling machine.
- leveling roll system is different for different sheet thicknesses. Due to the constraints of capital, space and operators, it is particularly important to develop a leveling machine that can quickly change rolls. A new type of quick roll changer leveling machine came into being.
- the present invention provides a quick-change roll leveling machine.
- this kind of quick roll changing leveling machine includes an upper beam, a 1# roller system interchangeable with a 2# roller system, a leveling roller, a lower base, and a transmission component, 1#roller system and 2#roller system both include an upper roller system and a lower roller system.
- the upper and lower roller systems are respectively fixed on the upper and lower cutting boards through the upper and lower arches on both sides, and also include the upper roller installed on the upper beam
- the tie down mechanism and the upper roller system positioning and locking mechanism also include a lower roller system positioning and locking mechanism and a support roller adjustment mechanism installed on the lower base, a spring anti-backlash mechanism installed between the upper beam and the lower base, and also include
- the transmission components connected with the roller system and the roller system removal mechanism also include an automatic centering device.
- the upper roll system press-down mechanism is composed of two roll system adjustment motors through the turbine nut and worm in the turbine box to drive the screw pair to achieve roll system down-pressing and lifting, and the two roll system adjustment motors operate synchronously Realize roll gap adjustment, asynchronous operation realizes roll gap opening angle adjustment.
- the anti-backlash mechanism consists of four powerful springs that are sheathed on the four threaded powerful pull rods, and the powerful spring is sheathed with a spring sleeve.
- the powerful spring is compressed by the upper roller system and the downward pressing mechanism, and the strong spring reaction force passes through the spring sleeve and the upper
- the cross beam and the upper roller system balance the gravity and eliminate the gap between the powerful pull rod and the turbine nut.
- the work rolls of the 1# roll system are arranged on top of ten and nine underneath, and the middle roll is arranged on top of ten and under eleven.
- the taper pin hole can be positioned on the upper beam by the upper locking cylinder.
- the lower cutting board is equipped with a roller removal mechanism, including walking wheels and racks.
- the roller system is removed by a motor, and the lower cutting board is equipped with a positioning hook for positioning ,
- the side of the lower cutting board is equipped with guideable side guide wheels;
- the arrangement of the work rolls and intermediate rolls of the 2# roll system and the 1# roll system is the same, and the work roll diameter and spacing are different.
- the upper roller system positioning and locking mechanism includes twelve upper locking cylinders installed on the upper beam, of which eight upper locking cylinders are equipped with "T” type nuts on the rod heads, and the upper locking cylinders are mounted through the "T” grooves.
- the cutting board is locked on the upper beam, and four cylinder rod heads on the side are installed with safety pins inserted into the side pin holes of the upper cutting board.
- a support roller adjustment mechanism is installed above the lower base, including adjusting the upper inclined iron and adjusting the lower inclined iron.
- the adjusting nut and the adjusting screw are driven by the roller type adjustment motor, and then the upper inclined iron and the lower inclined iron are adjusted and adjusted Convert the horizontal displacement to the vertical displacement to adjust the leveling roller profile to improve the leveling effect.
- the lower roller system positioning and locking mechanism is composed of a lower locking cylinder, a lifting positioning hook, a positioning hook, a stroke striker and a limit block.
- the lower base is equipped with a lower locking cylinder and a limit block.
- the locking cylinder is connected to the lifting positioning hook.
- the lower roller chopping board is equipped with a positioning hook and a stroke bumper. The stroke bumper is close to the limit block when the roll is changed, and then the lower locking cylinder pulls the lift positioning hook and the positioning hook to hook the lock tight.
- the automatic centering device includes a ball coupling, a floating arch and a ball cage coupling.
- the ball coupling is connected to the ball coupling through the floating arch, and the ball coupling is connected to the leveling roller.
- the floating arch can be floated in the height direction to adapt to the centering function of the ball coupling.
- One leveling machine is equipped with two sets of roller systems.
- the two sets of roller systems can be switched quickly, which not only increases the processing capacity of the leveler, but also ensures that one set of roller systems does not delay production when repairing, and greatly reduces the maintenance of the leveler The labor intensity of workers.
- the structure of the base and beam of the leveling machine is reasonable, the strength is high after heat treatment, and the rigidity is good and not easy to deform.
- the roller system is installed on the upper and lower cutting boards, and the whole is box-shaped.
- the upper and lower cutting boards are positioned and locked quickly and reliably by oil cylinders. At the same time, there is a safety pin on the side after locking.
- Figure 1 is a front view of the present invention
- Figure 2 is a right side view of Figure 1;
- Figure 3 is a top view of Figure 1;
- Figure 4 is a sectional view of A-A in Figure 1;
- Figure 5 is a sectional view of B-B in Figure 1;
- the quick roll change leveling machine includes the upper beam, the 1# roll system that can be changed with the 2# roll system, the leveling roll, the lower base, the 1# roll system and the 2# roll system are both It includes an upper roller system and a lower roller system.
- the upper and lower roller systems are respectively fixed on the upper and lower anvils through the upper and lower arches on both sides. It also includes the upper roller lowering mechanism, the anti-gap mechanism, the upper and lower roller positioning and locking mechanism and the supporting roller adjusting mechanism, the automatic centering device, the roller removing device, the transmission part and the gear box.
- the drive system and gear box of the roll-changing leveling machine are the same as the structure of the traditional leveling machine, and will not be repeated here.
- the upper roller system press mechanism consists of two roll gap adjustment motors 15 through the worm wheel nut 17 in the turbine box 16 and the worm 35 decelerates and increases the force to realize the roll system press and lift, and the two roll gap adjustments
- the motor 15 drives the two sets of worm gears 17 and worms 35 on the exit and entry sides of the leveling machine respectively, and the two sets of worm gears and worms on the same side are connected by the synchronous rod 1.
- the two motors 15 operate synchronously to adjust the gap between the rollers, and asynchronously to adjust the angle of the roll gap .
- the anti-backlash mechanism consists of four powerful springs 20 set on the four powerful pull rods 18.
- the powerful spring 20 is compressed by the roller pressing mechanism, and the spring reaction force is balanced by the spring sleeve 19 and the upper beam 2 The purpose of gravity and eliminating the gap between the powerful pull rod 18 and the worm gear nut 17.
- the work rolls 11 of the roll system are arranged on top, 9 on the bottom and 10 on the bottom, and the middle rolls 12 are arranged on top and 10 on the bottom.
- the upper arch 4 and the lower arch 5 on both sides are fixed on the upper chopping board 3 and the lower chopping board 6 respectively.
- the upper chopping board 3 is machined with "T" grooves and taper pin holes, which can be quickly and accurately positioned on the upper chopping block 14 Then the safety pin cylinder 26 pushes the safety pin 27 to be inserted into the tapered hole on the upper anvil plate 3 on the beam 2.
- the lower cutting board 6 is equipped with a walking wheel 21 on the side and a rack 22 on the lower side.
- the gear 24 can be driven by the motor 23 and the rack 22 can be quickly moved out of the roller system.
- the lower cutting board 6 is equipped with a positioning hook 25, and the side is equipped with a stroke striker 33 and side
- the guide wheel 40 can realize rapid positioning and guidance.
- the upper roller system is equipped with a positioning and locking mechanism.
- the upper cross beam 2 is equipped with 8 upper locking cylinders 14, and the upper locking cylinder 14 is equipped with a "T" nut 13 on the rod end, passing the "T”
- the groove locks the upper cutting board 3 on the upper beam 2, and the side-mounted 4 safety pin cylinders 26 rod head mounting safety pins 27 can be inserted into the side pin holes of the upper cutting board to prevent safety accidents caused by the pressure release of the upper locking cylinder 14.
- the lower base 7 and the supporting roller adjustment mechanism, the lower base 7 steel plate welded box structure, post-weld annealing treatment to eliminate residual stress the lower base is welded around the oil collecting groove, the lower base is equipped with 36 rails
- a supporting roller is installed above the lower base to adjust the lower inclined iron 31 and the upper inclined iron 32.
- the adjustment nut 29 and the adjustment screw 30 are driven by the roller adjustment motor 28, and then the lower inclined iron 31 and the upper
- the inclined iron 32 converts the horizontal displacement into the vertical displacement to adjust the roll shape of the leveling roller 11 to achieve the purpose of improving the leveling effect.
- the automatic centering device is composed of floating arches 37, ball couplings 38 and ball cage couplings 39.
- the ball couplings are connected to the ball cage coupling through the floating arches.
- the coupling is connected with the leveling roller.
- the ball cage coupling 39 has a universal constant velocity function to ensure the smooth and constant speed of the leveling roller 11.
- the floating arch 39 can float in the height direction to adapt to the centering of the ball coupling 38 Features.
- the lower roller positioning and locking mechanism is composed of a lower locking cylinder 8, a lifting positioning hook 9, a positioning hook 25, a stroke striker 33 and a limit block 34.
- the lower base 7 is equipped with The lower locking cylinder 8 and the limit block 34 are connected to the lifting positioning hook 9.
- the lower roller cutting board 6 is provided with a positioning hook 25 and a stroke striker 33.
- the stroke striker 33 is close to the limit when changing rolls. The position block 34, and then the lower locking cylinder 8 pulls the lifting positioning hook 9 and the positioning hook 25 to hook and lock.
- the roll change process of the roll change leveling machine is as follows. First, start the roll gap adjustment motor 15 to raise the upper beam 2 and the upper roller system to the set height, and then start the lower locking cylinder 8 to move the lower roller system
- the safety pin cylinder 26 is activated to retract the safety pin 27, and the upper locking cylinder 14 is activated
- the upper roller system is steadily landed on the lower roller system, the motor 23 is driven to drive the gear 24 and the rack 21 to move the roller system smoothly out of the replacement roller device.
- the waiting roller system on the roller replacement device is moved to the leveling machine.
- the operation steps are the same as the above steps. in contrast.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Soil Working Implements (AREA)
Abstract
一种快速换辊校平机,包括上横梁(2)、上辊系下压机构、消隙机构、可与2#辊系换辊的1#辊系、上、下辊系定位锁紧机构、下底座(7)及支承辊调整机构、辊系移出机构、传动部件及齿轮箱。一台校平主机对应两套不同校平辊径的辊系,两套辊系实现快速互换。辊系安装在上、下砧板(3,6)上,上下砧板分别用上、下锁紧油缸(8,14)定位锁紧。采用球齿联轴器(38)实现两套辊系互换时能够自动对中。液压马达(23)驱动齿轮(24)齿条(22)带动辊系快速平稳移出。该校平机的加工能力增加,一套辊系维修时不耽误生产,大大降低校平机维护保养工人的劳动强度。
Description
本发明涉及校平机技术领域,特别涉及快速换辊校平机。
随着国民经济的发展,不锈钢板材的市场需求不断扩大,对其表面要求也越来越高。不锈钢产品主要应用于汽车行业、家电行业、餐厨行业、建筑行业及环保行业等领域。虽然每年不锈钢产品的产量逐年增加,但仍不能满足日益增长的市场需求。通过市场调研和对目前加工不锈钢卷板设备分析发现校平机在提高不锈钢的加工效率方面还有很大的提升空间。作为冷轧不锈钢卷板加工成可使用成品板材的必需设备,校平机不但加工范围有限、制造成本较高,而且保养维护很不方便,尤其是大修方面不但需要专业人员维修,而且维修时间较长。众所周知为了达到一个理想的校平效果,针对于不同的板材厚度校平辊系是不同的,由于资金和场地以及操作人员的制约,开发出一种可以快速换辊校平机显得尤为重要,那么一种新型快速换辊校平机应运而生。
发明内容
为克服现有技术中存在的问题,本发明提供了快速换辊校平机。
本发明解决其技术问题所采取的技术方案是:该种快速换辊校平机,包括上横梁、可与2#辊系互换的1#辊系、校平辊、下底座、传动部件,1#辊系和2#辊系均包括上辊系和下辊系,上、下辊系通过两侧上、下牌坊分别固定在上、下砧板上,还包括安装在上横梁上的上辊系下压机构和上辊系定位锁紧机构,还包括安装在下底座上的下辊系定位锁紧机构以及支承辊调整机构,安装在上横梁与下底座之间的弹簧消隙机构,还包括与辊系相连的传动部件和辊系移出机构,还包括自动对中装置。
进一步地,所述上辊系下压机构由两台辊系调整电机经涡轮箱内的涡轮丝母和蜗杆减速增力驱动螺旋副实现辊系下压与提升,两台辊系调整电机同步运 行实现辊系间隙调整,异步运行实现辊缝开口角度调节。
进一步地,所述消隙机构由四件强力弹簧套装在四件螺纹强力拉杆上,强力弹簧外套置有弹簧套,通过上辊系下压机构压缩强力弹簧,强力弹簧反力通过弹簧套、上横梁及上辊系下压机构平衡重力和消除强力拉杆与涡轮丝母之间间隙。
进一步地,所述1#辊系的工作辊上十下九布置,中间辊上十下十一布置,中间辊下面有七排支撑辊构成六重辊结构,上砧板上加工“T”型槽和锥销孔,可通过上锁紧油缸定位在上横梁上,下砧板上装有辊系移出机构,包括行走轮及齿条,通过马达移出辊系,下砧板下面装有可实现定位的定位钩,下砧板侧面装可导向的侧导轮;
所述2#辊系与1#辊系工作辊及中间辊布置方式相同,工作辊直径及间距不同。
进一步地,所述上辊系定位锁紧机构包括安装在上横梁的十二个上锁紧油缸油缸,其中八个上锁紧油缸杆头安装“T”型螺母,通过“T”槽将上砧板锁紧在上横梁上,侧面四个油缸杆头安装安全销插在上砧板侧面销孔上。
进一步地,所述下底座上方安装有支承辊调整机构,包括调整上斜铁和调整下斜铁,通过辊型调整电机驱动调整螺母与调整丝杠,然后调整调整上斜铁和调整下斜铁将水平位移转化为竖直位移来调整校平辊辊型以改善校平效果。
进一步地,所述下辊系定位锁紧机构由下锁紧油缸、升降定位钩、定位钩,行程撞块以及限位块等件组成,下底座装有下锁紧油缸和限位块,下锁紧油缸与升降定位钩相连,下辊系砧板上设有定位钩与行程撞块,换辊时行程撞块紧贴限位块,然后下锁紧油缸拉动升降定位钩与定位钩钩住锁紧。
进一步地,自动对中装置包括球齿联轴器、浮动牌坊和球笼联轴器,球齿联轴器通过浮动牌坊与球笼联轴器连接,球笼联轴器与校平辊连接,浮动牌坊高度方向可以浮动以适配球齿联轴器的对中功能。
综上,本发明的上述技术方案的有益效果如下:
1.一台校平机配两套辊系,两套辊系可以快速切换,不但增加校平机的加工能力,同时保证一套辊系维修时不耽误生产,而且大大降低校平机维护保养工人的劳动强度。
2.校平机底座与横梁结构合理,经热处理后强度高,刚性好不容易变形。
3.辊系安装在上下两块砧板上,整体呈盒状,上下砧板分别用油缸定位锁紧快速可靠,同时锁紧后侧面设安全插销。
4.辊系下面设行走滚轮,校平底座铺设钢轨,液压马达驱动齿轮齿条平稳移出辊系。
图1为本发明的主视图;
图2为图1的右视图;
图3为图1俯视图;
图4为图1中A-A剖视图;
图5为图1中B-B剖视图;
图中:
1同步杆,2上横梁,3上砧板,4上牌坊,5下牌坊,6下砧板,7下底座,8下锁紧油缸,9升降定位钩,10支撑辊,11校平辊,12中间辊,13“T”型螺母,14上锁紧油缸,15辊缝调整电机,16涡轮箱,17蜗轮丝母,18强力拉杆,19弹簧套,20强力弹簧,21行走轮,22齿条,23马达,24齿轮,25定位钩,26安全销油缸,27安全销,28辊型调整电机,29调整螺母,30调整丝杠,31调整下斜铁,32调整上斜铁,33行程撞块,34限位块,35蜗杆,36钢轨,37浮动牌坊,38球齿联轴器,39球笼联轴器,40侧导轮。
以下结合附图对本发明的特征和原理进行详细说明,所举实施例仅用于解释本发明,并非以此限定本发明的保护范围。
如图1至图5所示,快速换辊校平机包括上横梁、可与2#辊系换辊的1#辊系、校平辊、下底座,1#辊系和2#辊系均包括上辊系和下辊系,上、下辊系 通过两侧上、下牌坊分别固定在上、下砧板上。还包括上辊系下压机构、消隙机构、上、下辊系定位锁紧机构及支承辊调整机构、自动对中装置、辊系移出装置、传动部件及齿轮箱等零部件组成。换辊校平机的传动***及齿轮箱与传统校平机的结构相同,在此不再赘述。
如图1、图2所示,上辊系下压机构由两台辊缝调整电机15经涡轮箱16中蜗轮丝母17蜗杆35减速增力实现辊系下压与提升,两台辊缝调整电机15分别驱动校平机出口、入口侧两套蜗轮17蜗杆35,同侧两套蜗轮蜗杆用同步杆1联接,两台电机15同步运行实现辊系间隙调整,异步运行实现辊缝开口角度调节。
如图2所示,消隙机构是由四件强力弹簧20套装在四件强力拉杆18上,通过辊系下压机构压缩强力弹簧20,弹簧反力通过弹簧套19、上横梁2以达到平衡重力和消除强力拉杆18与蜗轮丝母17之间间隙的目的。
如图1至图5所示,辊系工作辊11上9下10布置,中间辊12上10下11布置,中间辊下面有7排支撑辊10构成6重辊结构,上、下辊系通过两侧上牌坊4和下牌坊5分别固定在上砧板3和下砧板上6上,上砧板3上加工“T”型槽和锥销孔,可以通过上锁紧油缸14快速准确的定位在上横梁2上,然后安全销油缸26推动安全销27插在上砧板3上的锥形孔内。下砧板6侧面装有行走轮21及下面装有齿条22,可以通过马达23驱动齿轮24齿条22快速移出辊系,下砧板6下面装有定位钩25,侧面装行程撞块33及侧导轮40,可以实现快速定位和导向。
如图1至图3所示,上辊系安装有定位锁紧机构,上横梁2安装8只上锁紧油缸14,上锁紧油缸14杆头安装“T”型螺母13,通过“T”槽将上砧板3锁紧在上横梁2上,侧面装4只安全销油缸26杆头安装安全销27可以插在上砧板侧面销孔上,防止上锁紧油缸14释压发生安全事故。
如图1至图2所示,下底座7及支承辊调整机构,下底座7钢板焊接箱体结构,焊后退火处理消除残余应力,下底座四周焊有集油槽,下底座上面装钢 轨36其上设有限位块34,下底座上方安装支承辊调整下斜铁31和调整上斜铁32,通过辊型调整电机28驱动调整螺母29与调整丝杠30,然后调整下斜铁31和调整上斜铁32将水平位移转化为竖直位移来调整校平辊11辊型以达到改善校平效果的目的。
如图5所示,自动对中装置由浮动牌坊37、球齿联轴器38和球笼联轴器39等件组成,球齿联轴器通过浮动牌坊与球笼联轴器连接,球笼联轴器与校平辊连接,球笼联轴器39具有万向等速功能确保校平辊11转速平稳等速,浮动牌坊39高度方向可以浮动以适配球齿联轴器38的对中功能。
如图1至图2所示,下辊系定位锁紧机构由下锁紧油缸8、升降定位钩9、定位钩25,行程撞块33以及限位块34等件组成,下底座7装有下锁紧油缸8和限位块34,下锁紧油缸8与升降定位钩9相连,下辊系砧板6上设有定位钩25与行程撞块33,换辊时行程撞块33紧贴限位块34,然后下锁紧油缸8拉动升降定位钩9与定位钩25钩住锁紧。
如图1至图5,换辊校平机换辊过程如下,首先启动辊缝调整电机15,将上横梁2及上辊系提升到设定高度,然后启动下锁紧油缸8将下辊系顶升至行走滚轮21下沿与下横梁7上钢轨36面高度一致,安装在下砧板6上的升降定位钩9完成定位,启动安全销油缸26将安全销27缩回,启动上锁紧油缸14将上辊系平稳降落在下辊系上,启动马达23驱动齿轮24齿条21将辊系平稳移出置换辊装置上,换辊装置上待换辊系移至校平机内,操作步骤与上述步骤相反。
上述实施例仅仅是对本发明的优选实施方式进行的描述,并非对本发明的范围进行限定,在不脱离本发明设计精神的前提下,本领域相关技术人员对本发明的各种变形和改进,均应扩入本发明权利要求书所确定的保护范围内。
Claims (8)
- 快速换辊校平机,包括上横梁、可与2#辊系互换的1#辊系、校平辊、下底座、传动部件,1#辊系和2#辊系均包括上辊系和下辊系,上、下辊系通过两侧上、下牌坊分别固定在上、下砧板上,其特征在于,还包括安装在上横梁上的上辊系下压机构和上辊系定位锁紧机构,还包括安装在下底座上的下辊系定位锁紧机构以及支承辊调整机构,安装在上横梁与下底座之间的弹簧消隙机构,还包括与辊系相连的传动部件和辊系移出机构,还包括自动对中装置。
- 根据权利要求1所述的快速换辊校平机,其特征在于,所述上辊系下压机构由两台辊系调整电机经涡轮箱内的涡轮丝母和蜗杆减速增力驱动螺旋副实现辊系下压与提升,两台辊系调整电机同步运行实现辊系间隙调整,异步运行实现辊缝开口角度调节。
- 根据权利要求1所述的快速换辊校平机,其特征在于,所述消隙机构由四件强力弹簧套装在四件螺纹强力拉杆上,强力弹簧外套置有弹簧套,通过上辊系下压机构压缩强力弹簧,强力弹簧反力通过弹簧套、上横梁及上辊系下压机构平衡重力和消除强力拉杆与涡轮丝母之间间隙。
- 根据权利要求1所述的快速换辊校平机,其特征在于,所述1#辊系的工作辊上九下十布置,中间辊上十下十一布置,中间辊下面有七排支撑辊构成六重辊结构,上砧板上加工“T”型槽和锥销孔,可通过上锁紧油缸定位在上横梁上,下砧板上装有辊系移出机构,包括行走轮及齿条,通过马达移出辊系,下砧板下面装有可实现定位的定位钩,下砧板侧面装可导向的侧导轮;所述2#辊系与1#辊系工作辊及中间辊布置方式相同,工作辊直径及间距不同。
- 根据权利要求1所述的快速换辊校平机,其特征在于,所述上辊系定位锁紧机构包括安装在上横梁的十二个上锁紧油缸油缸,其中八个上锁紧油缸杆头安装“T”型螺母,通过“T”槽将上砧板锁紧在上横梁上,侧面四个油缸杆头安装安全销插在上砧板侧面销孔上。
- 根据权利要求1所述的快速换辊校平机,其特征在于,所述下底座上方安装有支承辊调整机构,包括调整上斜铁和调整下斜铁,通过辊型调整电机驱动调整螺母与调整丝杠,然后调整调整上斜铁和调整下斜铁将水平位移转化为竖直位移来调整校平辊辊型以改善校平效果。
- 根据权利要求1所述的快速换辊校平机,其特征在于,所述下辊系定位锁紧机构由下锁紧油缸、升降定位钩、定位钩,行程撞块以及限位块等件组成,下底座装有下锁紧油缸和限位块,下锁紧油缸与升降定位钩相连,下辊系砧板上设有定位钩与行程撞块,换辊时行程撞块紧贴限位块,然后下锁紧油缸拉动升降定位钩与定位钩钩住锁紧。
- 根据权利要求1所述的快速换辊校平机,其特征在于,自动对中装置包括球齿联轴器、浮动牌坊和球笼联轴器,球齿联轴器通过浮动牌坊与球笼联轴器连接,球笼联轴器与校平辊连接,浮动牌坊高度方向可以浮动以适配球齿联轴器的对中功能。
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