CN209550242U

CN209550242U - Mill roll changing device

Info

Publication number: CN209550242U
Application number: CN201822262173.7U
Authority: CN
Inventors: 黄云生; ***
Original assignee: Hengyang Xincheng Heavy Machinery Equipment Manufacturing Co Ltd
Current assignee: Hengyang Xincheng Heavy Machinery Equipment Manufacturing Co Ltd
Priority date: 2018-12-30
Filing date: 2018-12-30
Publication date: 2019-10-29
Anticipated expiration: 2028-12-30

Abstract

The utility model discloses a kind of mill roll changing devices comprising upper roller assembly and lower roller assembly, the upper roller assembly include upper roller and two upper roll bearing seats, and upper roller both ends are installed by bearing and in two upper roll bearing seats；The lower roller assembly includes lower roll and two bottom roll bearing blocks, and lower roll both ends are installed by bearing and in two bottom roll bearing blocks；Upper roller assembly is placed on lower roller assembly, and bottom roll bearing block connects rolling mechanism far from upper roller assembly side, and rolling mechanism is placed on guide rail, can move along rail length direction.Having for the utility model is easy to operate, quick, cheap, and has the function of the advantages of roll change of complete equity.

Description

Mill roll changing device

Technical field

The utility model relates to metal rolled fields, more particularly to a kind of mill roll changing device.

Background technique

For rolling mill roll after working after a period of time, precision is lost in roller surface abrasion, it is necessary to be replaced.It is existing Milling train is general using dismantling upper and lower roll respectively in roll change, and operator is using driving and lifting tool by roll from milling train It is moved out by force in memorial archway 9, haves the shortcomings that time-consuming and laborious, labor intensity of operating staff is big.Also have and changed using roll change buggy Roller changes as shown in fig. 6, roll has been risen to roll change position by the lifting compression system 8 illustrated in left side main mill memorial archway 9 when roll change Roller trolley empty wagons guide rail 4 enters in framework memorial archway 9, after reaching accurate station, unloads bottom roll and falls on roll change buggy, then will Roll change buggy outputs framework memorial archway 9, and the roll change buggy equipped with new roll is entered in framework memorial archway 9 along guide rail 4, new roll is filled Enter in mill housing 9, but dedicated roll change buggy is bulky, but also mating special drive system, equipment manufacturing cost It is expensive；Simultaneously because the reason of small height, correspondingly increase the height of mill housing, to the strength and stiffness of mill housing It has a negative impact.

Summary of the invention

It provides that easy to operate, roll change is quick the purpose of the utility model is to overcome the above-mentioned insufficient of the prior art, does not increase Add the mill roll changing device of mill housing height.

The technical solution of the utility model is: a kind of mill roll changing device comprising upper roller assembly and lower roller assembly, it is described Upper roller assembly includes upper roller and two upper roll bearing seats, and upper roller both ends are installed in two upper roll bearing seats by bearing；It is described Lower roller assembly includes lower roll and two bottom roll bearing blocks, and lower roll both ends are installed in two bottom roll bearing blocks by bearing；Upper roller Assembly is placed on lower roller assembly, and bottom roll bearing block connects rolling mechanism far from upper roller assembly side, and rolling mechanism is placed on guide rail, It can be moved along rail length direction.

The further technical solution of the utility model is: the rolling mechanism includes wheel set, and wheel set activity connects It connects in fixing seat, periphery and guide rail are rolled and connected, and fixing seat is connected with bottom roll bearing block.

The further technical solution of the utility model is: the fixing seat includes fixing seat ontology and lid, the fixation Seat ontology generally inverted L shape, horizontal edge connect bottom roll bearing block, and the horizontal edge end face of fixing seat ontology connects lid, fixing seat sheet The ontology inner hole and lid inner hole of installation wheel bearing are respectively equipped on the inside of body and lid, wheel set is pacified by wheel bearing Loaded in ontology inner hole and lid inner hole.

The further technical solution of the utility model is: it further includes moving guide rail, and moving guide rail is fastened on ground On vertical oil cylinder piston rod, piston rod can make moving guide rail can opposite rail flush, can also be on opposite rail Lower movement.

The further technical solution of the utility model is: the fixing seat ontology is equipped with bottom roll bearing block connection Key.

The further technical solution of the utility model is: the guide rail is " I " fonts rail.

The further technical solution of the utility model is: the moving guide rail is " I " fonts rail.

The further technical solution of the utility model is: the bottom of the moving guide rail passes through " 7 " font pressing plate and bolt It is fixed on the end face of piston rod.

The utility model has a characteristic that compared with prior art

1, the relatively existing roll change buggy of the present invention has low cost, and manufacturing cost is existing 50%, substantially saves Production cost.

2, replacement roll can be made very convenient, quick using the present invention, while framework window design heat is cold shared, can used Totally one main mill carries out cold rolling and hot rolling.

3, this changing rig both can be can also be used hydraulic cylinder and be pulled out and be pushed into very side using artificial pull-out and push-in Just.

It is further described below in conjunction with detailed construction of the drawings and specific embodiments to the utility model.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of rolling mechanism of the present invention；

Fig. 3 is the A-A cross-sectional view of Fig. 2；

Fig. 4 is the structural schematic diagram of rolling mechanism when the invention works；

Fig. 5 is the A-A cross-sectional view of Fig. 4；

Fig. 6 is existing roll change buggy roll change schematic diagram.

Specific embodiment

Embodiment 1

As shown in Figs. 1-5, a kind of mill roll changing device comprising upper roller assembly and lower roller assembly, the upper roller assembly packet Upper roller 11 and two upper roll bearing seats 12 are included, 11 both ends of upper roller are installed in two upper roll bearing seats 12 by bearing；Under described Roller assembly includes lower roll 11 and two bottom roll bearing blocks 22, and 21 both ends of lower roll are installed on two bottom roll bearing blocks 22 by bearing It is interior；Above-mentioned bearing is preferably biserial or four column annular tapered roller bearings, and the diameter of axle of such upper roller 11 and lower roll 21 exists respectively Upper roll bearing seat 12 and 22 inner support width of bottom roll bearing block are very wide, have good rigidity and stability, pass through the axis at both ends It holds seat and roll is assembled together and is equivalent to a rigid body.

Upper roller assembly is placed on lower roller assembly, and bottom roll bearing block 22 connects rolling mechanism far from upper roller assembly side, described Rolling mechanism includes wheel set 31 and fixing seat, and the wheel excircle of wheel set 31 is placed on guide rail 4, and wheel can be along guide rail 4 Length direction is mobile, and guide rail 4 is preferably " I " fonts rail, is bolted on ground.

Fixing seat includes fixing seat ontology 32 and lid 33, the fixing seat ontology 32 generally inverted L shape, horizontal edge connection Bottom roll bearing block 22, as shown in figure 3, i.e. 32 upper surface of fixing seat ontology is fastened by bolts in the lower surface of bottom roll bearing block 22 Under, in order to guarantee position precision, keyway is offered on the surface that fixing seat ontology 32 is in contact with bottom roll bearing block 22, it is built-in There is key 6.

The horizontal edge end face of fixing seat ontology 32 connects lid 33, i.e., shown in Fig. 3 to have end face that lid 33 is bolted, The inside of fixing seat ontology 32 and lid 33 is respectively equipped with the ontology inner hole 321 and lid inner hole 331 of installation wheel bearing 34, vehicle Wheel assembly 31 is installed in ontology inner hole 321 and lid inner hole 331 by wheel bearing 34.Lid 33 has in the present embodiment Dual function, first is that cover board function；Second is that supporting functions, are equivalent to the supporting bearing base on 31 right side of wheel set.It is such good Place is to play the role of support, and play easy to disassemble and maintenance.

For the ease of the present invention can efficiently and easily roll change be equipped with moving guide rail 41, i.e. guide rail 4 sets in mill housing 9 Outside mill housing 9, moving guide rail 41 is located in mill housing 9, on the piston rod 51 for installing vertical oil cylinder 5, vertical oil cylinder 5 It is mounted on opposite rail 4 and the lower position in ground is installed, the purpose is to keep the moving guide rail 41 on piston rod 51 neat with guide rail 4 It is flat, certain moving guide rail 41 under the action of vertical oil cylinder 5, can opposite rail 4 move up and down.Moving guide rail 41 is preferably " work " Font rail, bottom is fixed on the end face of piston rod 51 by " 7 " font pressing plate 71 and bolt 72, easy to remove in this way to lead The dismounting and maintenance of rail 41 and piston rod 51.

Application method of the invention: when needing roll change, roll has been risen to roll change position by lifting compression system 8, and control is perpendicular It is stretched out upwards to the piston rod 51 of oil cylinder 5, contacts the upper surface of moving guide rail 41 and the wheel excircle of wheel set 31, such as scheme 2, shown in Fig. 3, i.e., the present apparatus is completely disposed on moving guide rail 41, while flushes moving guide rail 41 with guide rail 4, and operator is just The mill roll changing device to be replaced can be exited, naturally it is also possible to make mill roll changing device from rack board using hydraulic or motor drag It removes in mill 9, is moved at replacement through guide rail 4.The new present apparatus is pushed into framework memorial archway 9 by guide rail 4 and moving guide rail 41, is arrived Up to after accurate station, the piston rod 51 for controlling vertical oil cylinder 5 retracts downwards 2-3mm, and the present apparatus is made to be placed in framework memorial archway 9 On pedestal, as shown in Figure 4, Figure 5, that is, allow the wheel excircle of wheel set 31 and the upper surface of moving guide rail 41 be separated by it is certain away from From so as not to damaging wheel set 31 and moving guide rail 41 when milling train works.At this point, as shown in Figure 1, new roll has been replaced It to operating position, goes up and down compression system 8 and resets, rolling work can be carried out.

Above-described embodiment is the preferable implementation of the utility model, and in addition to this, the utility model can be with other sides Formula realizes that any obvious replacement is in the protection model of the utility model under the premise of not departing from the technical program design Within enclosing.

Claims

1. a kind of mill roll changing device, it is characterised in that: it includes upper roller assembly and lower roller assembly, and the upper roller assembly includes upper Roller (11) and two are upper roll bearing seat (12), upper roller (11) both ends by bearing be installed on two upper roll bearing seat (12) it is interior；Institute Stating lower roller assembly includes lower roll (21) and two bottom roll bearing blocks (22), and lower roll (21) both ends are installed on two lower rolls by bearing In bearing block (22)；Upper roller assembly is placed on lower roller assembly, and bottom roll bearing block (22) connects roller press far from upper roller assembly side Structure, rolling mechanism are placed on guide rail (4), can be mobile along guide rail (4) length direction.

2. a kind of mill roll changing device according to claim 1, it is characterised in that: the rolling mechanism includes wheel set (31), wheel set (31) is movably connected in fixing seat, and periphery and guide rail (4) roll and connect, fixing seat and lower roll bearing Seat (22) is connected.

3. a kind of mill roll changing device according to claim 2, it is characterised in that: the fixing seat includes fixing seat ontology (32) and lid (33), the fixing seat ontology (32) generally inverted L shape, horizontal edge connect bottom roll bearing block (22), fixing seat The horizontal edge end face of ontology (32) connects lid (33), is respectively equipped with installation wheel on the inside of fixing seat ontology (32) and lid (33) The ontology inner hole (321) and lid inner hole (331) of bearing (34), wheel set (31) are installed on ontology by wheel bearing (34) In inner hole (321) and lid inner hole (331).

4. a kind of mill roll changing device according to claim 3, it is characterised in that: it further includes moving guide rail (41), is moved Dynamic guide rail (41) are connected and fixed the piston rod (51) of vertical oil cylinder (5) on the ground, and piston rod (51) can make moving guide rail (41) can opposite rail (4) flush, can opposite rail (4) move up and down.

5. a kind of mill roll changing device according to claim 3, it is characterised in that: the fixing seat ontology (32) and lower roll Bearing block (22) connection is equipped with key (6).

6. a kind of mill roll changing device according to claim 1 or 2, it is characterised in that: the guide rail (4) is " I " fonts Rail.

7. a kind of mill roll changing device according to claim 4, it is characterised in that: the moving guide rail (41) is " work " word Shaped steel rail.

8. a kind of mill roll changing device according to claim 7, it is characterised in that: the bottom of the moving guide rail (41) is logical It crosses " 7 " font pressing plate (71) and bolt (72) is fixed on the end face of piston rod (51).

9. a kind of mill roll changing device according to claim 4, it is characterised in that: the fixing seat ontology (32) and lower roll Bearing block (22) connection is equipped with key (6).

10. a kind of mill roll changing device according to claim 4, it is characterised in that: the guide rail (4) is " I " fonts steel Rail.