CN106180211B - Working roll shifting device of plate and strip rolling mill - Google Patents

Abstract

The invention relates to a roll shifting device for work rolls of a strip rolling mill, comprising a guide frame body fixed on the outer surface of an archway on the operating side of the rolling mill, a moving block capable of sliding along the axial direction of the work rolls is slid inside the guide frame body, and the guide frame body The end far away from the archway on the operating side of the rolling mill is fixed with a horizontal roll-shifting hydraulic cylinder whose central axis is parallel to the axial direction of the work rolls. The free end of the piston rod of the roll-shifting hydraulic cylinder penetrates into the guide frame and is fixedly connected to the moving The block is far away from the end of the archway on the operating side of the rolling mill, and the moving block is horizontally and horizontally provided with a clamping plate structure that can move along the direction perpendicular to the central axis of the roll shifting hydraulic cylinder and can clamp the work roll bearing seat. The work roll shifting device of the strip rolling mill overcomes the problems existing in the prior art, realizes the axial shifting of the rolling mill rolls, and achieves a better effect of controlling the plate shape. The device is light in weight, simple and reliable in structure, easy to maintain, and rigid big.

Description

Work roll shifting device for strip mill

technical field

The invention relates to the technical field of large-scale steel rolling equipment of metallurgical machinery, in particular to a work roll shifting device of a strip mill.

Background technique

In order to improve roll gap crown and control strip shape, various means and methods have been adopted in modern strip mills. Roll shifting technology is a control method that is widely used. Through roll shifting control, it can not only improve the harmful contact between the work roll and the backup roll, but also improve the stiffness of the roll gap and control the shape of the plate, such as HC technology (High Crown technology , refers to high-performance roll crown control technology). Moreover, when the roll body has a certain roll shape curve, it can achieve a more powerful shape control ability through roll shifting, such as CVC technology (abbreviation for Continuously Variable Crown, the so-called CVC mill refers to the adjustment of the crown and shape of the hot strip steel plate. According to the needs, the work rolls are processed into CVC rolls with S-shaped roll bodies, and then the upper and lower work rolls are inverted 180° to each other, so that the rolling mill with the ability to continuously change the shape of the no-load roll gap when the work rolls move axially), SmartCrown technology ( A new type of shape control technology based on CVC shape control technology), etc. The roll shifting device in the prior art generally has a relatively complex structure, and there are problems such as oil leakage from the roll shifting cylinder or breakage of the piston rod, which is not conducive to maintenance and high cost input.

Therefore, relying on years of experience and practice in related industries, the inventor proposes a work roll shifting device of a strip mill to overcome the defects of the prior art.

Contents of the invention

The object of the present invention is to provide a work roll shifting device of a strip mill, which overcomes the problems in the prior art, realizes the axial shifting of the rolls of the rolling mill, and achieves a better effect of controlling the shape of the strip.

Another object of the present invention is to provide a work roll shifting device of a strip mill, which is light in weight, simple and reliable in structure, convenient in maintenance and high in rigidity.

The purpose of the present invention is achieved in this way, a roll shifting device for the work rolls of a strip mill, the roll shifting device for the work rolls of a strip mill includes a guide frame body fixed on the outer surface of the archway on the operating side of the rolling mill, the guide frame A moving block that can slide along the axial direction of the work roll is slid in the body, and the end of the guide frame body away from the archway on the operating side of the rolling mill is fixed with a horizontal roll shifting hydraulic cylinder whose central axis is parallel to the axial direction of the work roll , the free end of the piston rod of the roll shifting hydraulic cylinder penetrates into the body of the guide frame and is fixedly connected to the end of the moving block away from the archway on the operating side of the rolling mill. A clamping plate structure that moves perpendicular to the central axis of the roll shifting hydraulic cylinder and can clamp the work roll chocks.

In a preferred embodiment of the present invention, the guide frame body includes a fixed bracket fixed on the outer surface of the archway on the operating side of the rolling mill, and the cylinder body of the roll shifting hydraulic cylinder is fixedly connected to the fixed bracket away from On the side of the archway on the operation side of the rolling mill, the side of the fixed bracket away from the work roll bearing seat is fixedly connected with a guide plate arranged along the axial direction of the work roll, and the moving block is provided with a sliding sleeve. Guide slots for guide plates.

In a preferred embodiment of the present invention, the guide plate includes an upper guide plate located above the moving block and a lower guide plate located below the moving block. The guide plate, the upper guide groove and the lower guide groove corresponding to the lower guide plate.

In a preferred embodiment of the present invention, a first slide plate is arranged between the side wall of the guide plate and the groove wall of the guide groove, and the fixed bracket is connected to the upper surface of the moving block, the moving block A second slide is provided between the lower surfaces of the blocks.

In a preferred embodiment of the present invention, the clamping plate structure includes a clamping plate arranged horizontally and passing through the moving block perpendicular to the direction of the central axis of the roll shifting hydraulic cylinder. There is a clamping plate through hole for slidingly setting the clamping plate, and the end of the clamping plate away from the work roll bearing seat is provided with a clamping plate hydraulic cylinder capable of driving the clamping plate to move. The clamp hydraulic cylinder is arranged horizontally, and the central axis of the clamp hydraulic cylinder is perpendicular to the central axis of the roll shifting hydraulic cylinder.

In a preferred embodiment of the present invention, the pallet hydraulic cylinder is a double-rod hydraulic cylinder, and the end of the pallet far away from the work roll chock is provided with a socket for accommodating the pallet hydraulic cylinder from the outside to the inside. The oil cylinder installation groove, the end of the clamp away from the work roll chock is detachably connected to the clamp end cover, the free end of the first piston rod on the side of the clamp hydraulic cylinder close to the work roll chock is connected to the The groove bottom of the oil cylinder installation groove abuts against, the free end of the second piston rod on the side of the pallet hydraulic cylinder far away from the work roll chock abuts against the pallet end cover, and the moving block is away from One side of the work roll chock is fixedly connected with a clamp hydraulic cylinder support, and the cylinder body of the clamp hydraulic cylinder is fixedly connected with the clamp hydraulic cylinder support.

In a preferred embodiment of the present invention, one end of the moving block close to the archway on the operating side of the rolling mill is provided with a clamping plate that can cooperate with the clamping plate to clamp the work roll chock.

In a preferred embodiment of the present invention, a vertically arranged third sliding plate is fixedly connected to the opposite side of the clamping plate to the clamping plate, and the connection between the clamping plate and the side wall of the through hole of the clamping plate There is a fourth slide in between.

In a preferred embodiment of the present invention, the free end of the piston rod of the roll shifting hydraulic cylinder is fixedly connected with a cylinder head, and the end of the moving block away from the archway on the operating side of the rolling mill is provided with a The cylinder head accommodation groove of the head, the groove bottom of the cylinder head accommodation groove is against the end face of the cylinder head, and the groove wall of the cylinder head accommodation groove has a gap with the outer wall of the cylinder head; the cylinder head A first stepped portion with a reduced diameter is provided on the outer wall of the cylinder head, and the end surface of the fixed sleeve on the cylinder head abuts against the first stepped portion and can axially fix the cylinder head to the moving block The upper end cover, the center of the end cover is provided with a first cylinder head through hole for passing through the cylinder head, and there is a gap between the side wall of the first cylinder head through hole and the outer side wall of the cylinder head.

In a preferred embodiment of the present invention, the groove bottom of the cylinder head receiving groove is fixedly provided with a fifth slide plate capable of abutting against the end of the cylinder head, and a fifth slide plate capable of abutting against the end of the cylinder head is provided on the end surface of the end cover. The first stepped portion abuts against and is sheathed on the sixth slide plate outside the cylinder head, and the center of the sixth slide plate is provided with a second cylinder head through hole for passing through the cylinder head. There is a gap between the side wall of the through hole of the second cylinder head and the outer wall of the cylinder head.

In a preferred embodiment of the present invention, the work roll shifting device of the strip mill further includes a zero adjustment assembly that can be disassembled and can adjust and calibrate the position of the work roll shifting device of the strip mill.

From the above, the work roll shifting device of the strip mill provided by the present invention has the following beneficial effects:

(1) In the work roll shifting device of the strip mill provided by the present invention, the roll shifting hydraulic cylinder and the moving block are connected through the cylinder head and the end cover, and the cylinder head and the cylinder head receiving groove in the moving block are circumferentially provided with a gap, which can eliminate the The lateral force brought by the roll bearing seat to the piston rod of the roll shifting hydraulic cylinder during the movement process greatly reduces the overturning moment borne by the piston rod of the roll shifting hydraulic cylinder, and the moving block transmitted by the work roll bearing seat The lateral force and overturning moment are all borne by the guide frame body. The roll shifting hydraulic cylinder works stably and reliably, prolonging the service life of the hydraulic cylinder;

(2) The roll shifting device of the working roll of the strip mill provided by the present invention is installed on the outer side of the archway on the operating side of the rolling mill. The roll shifting device has high strength and rigidity, the roll shifting process is stable and reliable, and the life of the slide plate is long, achieving a better control panel type of effect;

(3) In the roll shifting device for the work rolls of the strip mill provided by the present invention, the roll shifting hydraulic cylinder adopts a standard hydraulic cylinder, and the roll shifting hydraulic cylinder, the moving block and the clamping plate structure are externally assembled, the structure is simple and reliable, and the overall design , Purchasing and maintenance are convenient.

Description of drawings

The following drawings are only intended to illustrate and explain the present invention schematically, and do not limit the scope of the present invention. in:

Fig. 1: is the front view of the use state of the work roll shifting device of the strip rolling mill according to the present invention.

Fig. 2 is a top view of the work roll shifting device of the strip mill in use according to the present invention.

Figure 3: It is a cross-sectional view at A-A in Figure 1.

Figure 4: It is a cross-sectional view at B-B in Figure 2.

In the picture:

100. Roll shifting device for work rolls in strip mills;

1. Guide frame body;

11. Fixed bracket;

12, guide plate; 121, upper guide plate; 122, lower guide plate;

2. Moving blocks;

21, guide groove; 211, upper guide groove; 212, lower guide groove;

22. Clamping plate;

23. Cylinder head receiving groove;

3. Roll shifting hydraulic cylinder;

31. Piston rod of roll shifting hydraulic cylinder;

32. The cylinder body of the roll shifting hydraulic cylinder;

33. Cylinder head; 331. The first step;

34. End cover;

4. Pallet structure;

41. Clamping plate; 411. Oil cylinder installation groove; 412. Clamping plate end cover;

42. Clamp hydraulic cylinder; 421. Cylinder body of clamp hydraulic cylinder; 4221. First piston rod; 4222. Second piston rod;

43. Pallet hydraulic cylinder support;

51. The first skateboard; 52. The second skateboard; 53. The third skateboard; 54. The fourth skateboard; 55. The fifth skateboard; 56. The sixth skateboard;

6. Zero adjustment components;

8. Work roll bearing seat;

9. The archway on the operation side of the rolling mill; 91. The entrance archway on the operation side of the rolling mill; 92. The exit archway on the operation side of the rolling mill.

detailed description

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

As shown in Fig. 1 and Fig. 2, the work roll shifting device 100 of the strip rolling mill provided by the present invention includes a guide frame body 1 fixed on the outer surface of the archway 9 on the operating side of the rolling mill. The moving block 2 that slides along the axial direction of the work rolls (the prior art), the end of the guide frame body 1 away from the archway 9 on the operating side of the rolling mill is fixed with a horizontal roll shifting hydraulic cylinder 3 whose central axis is parallel to the axial direction of the work rolls The free end of the piston rod 31 of the roll shifting hydraulic cylinder penetrates into the guide frame body 1 and is fixedly connected to the end of the moving block 2 away from the archway 9 on the operating side of the rolling mill. The hydraulic cylinder 3 moves in the direction of the central axis and can clamp the clamping plate structure 4 of the work roll chock 8 . The guide frame body 1 is used as the support structure in the work roll shifting device 100 of the strip mill. When the moving block 2 moves back and forth along the axial direction of the work roll under the drive of the roll shifting hydraulic cylinder 3, the guide frame body 1 pair of moving blocks 2 play a guiding role; the work roll shifting device 100 of the strip mill is installed on the outer surface of the archway 9 on the operating side of the rolling mill, and the work roll shifting device 100 of the strip mill can drive the work roll bearing housing 8 along the axial direction of the work roll Reciprocating movement, the work roll shifting device 100 of the strip mill has high strength and high rigidity, the roll shifting process is stable and reliable, the sliding plate has a long service life, and achieves a better effect of controlling the shape of the plate.

Further, as shown in Fig. 2, Fig. 3 and Fig. 4, the guide frame body 1 includes a fixed bracket 11 fixed on the outer surface of the rolling mill operation side archway 9. In this embodiment, the fixed bracket 11 is fixedly connected to the rolling mill by bolts. On the outer side of the archway 9 on the operating side; the cylinder body 32 of the roll shifting hydraulic cylinder is fixedly connected to the side of the fixed bracket 11 away from the archway 9 on the operating side of the rolling mill. In this embodiment, the cylinder body 32 of the roll shifting hydraulic cylinder is fixed by bolts Connected to the fixed bracket 11; the side of the fixed bracket 11 away from the work roll bearing housing 8 is fixedly connected with a guide plate 12 arranged along the axial direction of the work roll. In this embodiment, the guide plate 12 is fixedly connected to the fixed bracket 11 by bolts One side of the mobile block 2 is convenient for disassembly and assembly; the mobile block 2 is provided with a guide groove 21 which can slide and sleeve the guide plate 12 . Under the action of the roll shifting hydraulic cylinder 3, the moving block 2 can reciprocate along the guide plate 12, and the guide plate 12 makes the moving process of the moving block 2 stable and reliable. In this embodiment, a displacement sensor capable of calibrating the position of the moving block 2 (the prior art, not shown in the figure) is arranged in the cylinder body 32 of the roll shifting hydraulic cylinder.

Further, as shown in Figure 4, the guide plate 12 comprises an upper guide plate 121 positioned at the top of the moving block 2 and a lower guide plate 122 positioned at the bottom of the moving block 2, and the moving block 2 is provided with an upper guide plate 121 and a lower guide plate respectively. 122 corresponds to the upper guide groove 211 and the lower guide groove 212 . Both the upper and lower sides of the moving block 2 are provided with guide plates 12, the movement of the moving block 2 is more stable and reliable, and the lateral force generated by the deflection is avoided to affect the bending effect.

Further, as shown in Figure 4, a first slide plate 51 is arranged between the side wall of the guide plate 12 and the groove wall of the guide groove 21, and a first slide plate 51 is arranged between the fixed bracket 11 and the upper surface of the moving block 2 and the lower surface of the moving block 2. There is a second slide 52 . The first sliding plate 51 and the second sliding plate 52 play a guiding role in the movement of the moving block 2, and prevent the guide frame body 1 and the moving block 2 from being worn. The wear caused by the moving block 2 is mainly concentrated on the first sliding plate 51. , On the second sliding plate 52, it is easy to disassemble and replace, and reduces the repair and maintenance cost.

Further, as shown in FIG. 3 , the clamping structure 4 includes a clamping plate 41 which is arranged horizontally and passes through the moving block 2 perpendicularly to the direction of the central axis of the roll shifting hydraulic cylinder 3 . The through hole of the clamp is used to slide the clamp 41. In this embodiment, the clamp 41 is a rectangular plate, the through hole of the clamp is a rectangular through hole corresponding to the clamp 41, and the clamp 41 is far away from the work roll bearing seat One end of 8 is provided with a pallet hydraulic cylinder 42 capable of driving pallet 41 to move. Under the action of the clamping hydraulic cylinder 42, the clamping plate 41 realizes telescopic movement in the clamping plate passage hole inside the moving block 2 along the moving direction perpendicular to the moving block 2 (that is, the direction of the central axis of the roll shifting hydraulic cylinder 3), and plays a clamping role. The function of tightening and loosening the work roll chock 8.

Further, as shown in Fig. 3 and Fig. 4, the pallet hydraulic cylinder 42 is a double-rod hydraulic cylinder, and the end of the pallet 41 away from the work roll bearing housing 8 is provided with an oil cylinder installation groove for accommodating the pallet hydraulic cylinder 42 from the outside to the inside. 411, the end of the clamping plate 41 away from the work roll bearing seat 8 is detachably connected with the clamping plate end cover 412, and the free end of the first piston rod 4221 on the side of the clamping plate hydraulic cylinder 42 close to the work roll bearing seat 8 is installed with the oil cylinder The groove bottom of the groove 411 abuts, the free end of the second piston rod 4222 on the side of the chuck hydraulic cylinder 42 away from the work roll chock 8 abuts against the chuck end cover 412, and the moving block 2 is far away from the work roll chock 8 One side is fixedly connected with the pallet hydraulic cylinder support 43 , and the cylinder body 421 of the pallet hydraulic cylinder is fixedly connected with the pallet hydraulic cylinder support 43 . When it is necessary for the clamping plate 41 to stretch out the clamping plate through hole to clamp the work roll bearing seat 8, the right oil chamber of the clamping plate hydraulic cylinder 42 enters the oil and the left oil chamber returns the oil, and the first piston rod 4221 pushes the clamping plate 41 to stretch out; When the clamp 41 needs to be recovered and the work roll bearing seat 8 is loosened, the right oil chamber of the clamp hydraulic cylinder 42 returns to the oil and the left oil chamber enters the oil, the second piston rod 4222 pushes the clamp end cover 412, and the clamp end cover 412 drives the clamp The plate 41 moves to the right and retracts.

Further, as shown in FIG. 3 and FIG. 4 , the end of the moving block 2 close to the archway 9 on the operating side of the rolling mill is provided with a clamping plate 22 that can cooperate with the clamping plate 41 to clamp the work roll chock 8 . In this embodiment, the free end of the clamping plate 41 extends out of the fixed bracket 11 under the push of the first piston rod 4221 of the clamping plate hydraulic cylinder, and the free end of the clamping plate 41 cooperates with the clamping plate 22 to clamp the work roll bearing seat 8 (in the prior art, the wing portion is a structure that protrudes outward on the work roll chock 8 and is used for clamping of the roll shifting device).

Further, as shown in Fig. 3 and Fig. 4, the third slide plate 53 vertically arranged on the opposite side of the clamping plate 41 and the clamping plate 22 is fixedly connected, and the third slide plate 53 can prevent the clamping plate 41 and the clamping plate 22 from being affected. Wear and tear; A fourth slide plate 54 is arranged between the clamp plate 41 and the clamp plate through hole side wall of the moving block 2, and the fourth slide plate 54 can avoid excessive clamping of the clamp plate 41 and the moving block 2 due to the reciprocating movement of the clamp plate 41. Hole sidewalls are subject to wear.

Further, as shown in Figure 3, the free end of the piston rod 31 of the roll shifting hydraulic cylinder is fixedly connected with a cylinder head 33, and the end of the moving block 2 away from the archway on the operating side of the rolling mill is provided with a cylinder head that can be sleeved with the cylinder head 33 to accommodate Groove 23, the groove bottom of cylinder head receiving groove 23 and the end face of cylinder head 33 abut against, the groove wall of cylinder head receiving groove 23 and the outer side wall of cylinder head 33 have clearance; The first step portion 331 of the cylinder head 33 is fixedly provided with an end cover 34 whose end face abuts against the first step portion 331 and can axially fix the cylinder head 33 on the moving block 2. The center of the end cover 34 A first cylinder head through hole for passing through the cylinder head 33 is provided, and there is a gap between the side wall of the first cylinder head through hole of the end cover 34 and the outer side wall of the cylinder head 33 . The roll shifting hydraulic cylinder 3 drives the moving block 2 through the cylinder head 33 and the end cover 34 to realize reciprocating rolling motion along the axial direction of the work roll in the guide frame body 1. When the piston rod 31 of the roll shifting hydraulic cylinder is stretched out, the cylinder head 33 Directly push the moving block 2 along the axial direction of the work roll to move towards the archway 9 on the operating side of the rolling mill; when the piston rod 31 of the roll shifting hydraulic cylinder retracts, the recovery force of the cylinder head 33 acts on the end cover 34 to directly pull the moving block Move towards the direction away from the rolling mill operation side archway 9, and complete the reciprocating movement of the moving block 2.

Further, as shown in FIG. 3 , the bottom of the cylinder head receiving groove 23 is fixedly provided with a fifth sliding plate 55 capable of abutting against the end of the cylinder head 33 , and the end surface of the end cover 34 is provided with a sliding plate 55 capable of abutting against the first step portion 331 . Rely on and sleeve the sixth slide plate 56 outside the cylinder head 33, the center of the sixth slide plate 56 is provided with a second cylinder head through hole for piercing the cylinder head 33, the second cylinder head pass hole on the sixth slide plate 56 There is a gap between the hole side wall and the outer side wall of the cylinder head 33 .

There is a gap between the groove wall of the cylinder head receiving groove 23 and the outer side wall of the cylinder head 33, the first cylinder head through hole side wall of the end cover 34 and the outer side wall of the cylinder head 33 have a gap, and the second cylinder head of the sixth slide plate 56 passes through. There is a gap between the side wall of the hole and the outer wall of the cylinder head 33, which can ensure that the roll shifting force transmitted from the work roll bearing housing 8 is transmitted to the guide frame body 1 through the moving block 2, and prevents the piston rod 31 of the roll shifting hydraulic cylinder from being subjected to lateral force. force, which greatly reduces the overturning moment borne by the piston rod 31 of the roll shifting hydraulic cylinder, the roll shifting hydraulic cylinder 3 works stably and reliably, and prolongs the service life of the hydraulic cylinder.

Further, as shown in FIG. 2 and FIG. 3 , the work roll shifting device 100 of the strip mill also includes a zero adjustment assembly 6 that can be disassembled and can adjust and calibrate the position of the work roll shifting device 100 of the strip mill. The zero adjustment assembly 6 generally includes a connecting block that can be fixed or disassembled from the archway 9 on the operating side of the rolling mill. The side of the connecting block close to the moving block 2 is provided with a gasket group that can adjust the thickness, and the movement is realized by adjusting the thickness of the gasket group. Calibration of the position of block 2. After the work roll shifting device 100 of the strip mill is installed and when each sliding plate is replaced, the zero adjustment assembly 6 needs to be used to calibrate the position of the moving block 2 .

When using the work roll shifting device 100 of the strip mill of the present invention to carry out roll shifting, two strip mill work roll shifting devices 100 are installed up and down in sequence at the entrance archway 91 on the operation side of the rolling mill, and correspondingly at the exit of the operation side of the rolling mill. Two plate and strip mill work roll shifting devices 100 arranged up and down in turn are also installed at the archway 92, and the two plate and strip mill work roll shifting devices 100 arranged above cooperate together to realize the upper work roll (the prior art, not shown in the figure). out), the reciprocating axial movement of the work rolls of the two strip mills arranged below cooperates together to realize the reciprocating axial movement of the lower work roll (the prior art, not shown in the figure), according to Rolling needs to achieve better shape control effect. When the work roll shifting device 100 of the strip mill is installed, the zero position of the work roll shifting device 100 of the strip mill is calibrated through the shim group of the zero adjustment assembly 6 and the displacement sensor inside the roll shifting hydraulic cylinder 3, and the zero position of the work roll shift device 100 of the strip mill is calibrated. Zero adjustment assembly 6 is removed. When the rolling mill is working normally, the free end of the clamping plate 41 extends out of the fixed bracket 11 under the push of the first piston rod 4221 of the clamping plate hydraulic cylinder, and the free end of the clamping plate 41 cooperates with the clamping plate 22 to clamp the work roll bearing housing 8 wing portion (prior art); when the work roll of the rolling mill is changed, the clamping plate 41 is retracted into the fixed bracket 11 under the push of the second piston rod 4222 of the clamping plate hydraulic cylinder, and the wing portion of the working roll bearing housing 8 is loosened After (prior art), carry out the roll changing operation.

From the above, the work roll shifting device of the strip mill provided by the present invention has the following beneficial effects:

(1) In the work roll shifting device of the strip mill provided by the present invention, the roll shifting hydraulic cylinder and the moving block are connected through the cylinder head and the end cover, and the cylinder head and the cylinder head receiving groove in the moving block are circumferentially provided with a gap, which can eliminate the The lateral force brought by the roll bearing seat to the piston rod of the roll shifting hydraulic cylinder during the movement process greatly reduces the overturning moment borne by the piston rod of the roll shifting hydraulic cylinder, and the moving block transmitted by the work roll bearing seat The lateral force and overturning moment are all borne by the guide frame body. The roll shifting hydraulic cylinder works stably and reliably, prolonging the service life of the hydraulic cylinder;

(2) The roll shifting device of the working roll of the strip mill provided by the present invention is installed on the outer side of the archway on the operating side of the rolling mill. The roll shifting device has high strength and rigidity, the roll shifting process is stable and reliable, and the life of the slide plate is long, achieving a better control panel type of effect;

(3) In the roll shifting device for the work rolls of the strip mill provided by the present invention, the roll shifting hydraulic cylinder adopts a standard hydraulic cylinder, and the roll shifting hydraulic cylinder, the moving block and the clamping plate structure are externally assembled, the structure is simple and reliable, and the overall design , Purchasing and maintenance are convenient.

The above descriptions are only illustrative specific implementations of the present invention, and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. A kind of 1. Work Roll of Strip Rolling Mill roll-shifting device, it is characterised in that：The Work Roll of Strip Rolling Mill roll-shifting device includes solid Due to being slidably equipped with and can be slid axially along working roll in the guiding support body on the lateral surface of milling train fore side memorial archway, the leading truck body Movable block, the described guiding one end of support body away from the milling train fore side memorial archway is fixed with central axis and working roll axial direction Parallel and horizontally disposed roll shifting hydraulic cylinder, the free end of the piston rod of the roll shifting hydraulic cylinder penetrate the guiding support body Interior and be fixedly connected on the one end of the movable block away from the milling train fore side memorial archway, level is slidably equipped with the movable block Energy be moved along the central axial direction perpendicular to the roll shifting hydraulic cylinder and the clamp structure of energy clamping working roll bearing block；

   The clamp structure is vertically worn including horizontally disposed and with the roll shifting hydraulic cylinder central axial direction passes through institute The clamp of movable block is stated, be provided with the movable block insertion and for the sliding clamp via for setting the clamp, the clamp One end away from the working roll bearing block is provided with the clamp hydraulic cylinder that can drive the clamp moving, the clamp hydraulic cylinder The central axis of the central axis and the roll shifting hydraulic cylinder of horizontally disposed and described clamp hydraulic cylinder is perpendicular.
2. 2. Work Roll of Strip Rolling Mill roll-shifting device as claimed in claim 1, it is characterised in that：The guiding support body includes fixing Fixed support on the lateral surface of the milling train fore side memorial archway, the cylinder body of the roll shifting hydraulic cylinder are fixedly connected on described solid Side of the fixed rack away from the milling train fore side memorial archway, side of the fixed support away from the working roll bearing block are fixed It is connected with along the axially arranged guide plate of working roll, the guiding for being arranged the guide plate can be slided by being provided with the movable block Groove.
3. 3. Work Roll of Strip Rolling Mill roll-shifting device as claimed in claim 2, it is characterised in that：The guide plate includes being located at institute State the upper guide plate above movable block and the lower guide plate below the movable block, be provided with the movable block respectively with Upper guide groove and lower guide groove corresponding to the upper guide plate, the lower guide plate.
4. 4. Work Roll of Strip Rolling Mill roll-shifting device as claimed in claim 2 or claim 3, it is characterised in that：The side wall of the guide plate The first slide plate, upper surface, the shifting of the fixed support and the movable block are provided between the cell wall of the guide groove The second slide plate is provided between the lower surface of motion block.
5. 5. Work Roll of Strip Rolling Mill roll-shifting device as claimed in claim 1, it is characterised in that：The clamp hydraulic cylinder for it is double go out Bar hydraulic cylinder, the clamp are provided with for accommodating the clamp hydraulic cylinder from the outside to the core away from described working roll bearing block one end Oil cylinder mounting groove, the one end of the clamp away from working roll bearing block is removedly connected with clamp end cap, the clamp liquid Cylinder pressure close to the free end of the First piston bar of the side of the working roll bearing block and the oil cylinder mounting groove bottom land against, The free end of the second piston bar of the side of the clamp hydraulic cylinder away from the working roll bearing block is supported with the clamp end cap Lean on, side of the movable block away from the working roll bearing block is fixedly connected with clamp hydraulic cylinder leg, the clamp hydraulic pressure The cylinder body of cylinder is fixedly connected on the clamp hydraulic cylinder leg.
6. 6. Work Roll of Strip Rolling Mill roll-shifting device as claimed in claim 1, it is characterised in that：The movable block rolls close to described One end of machine fore side memorial archway is provided with the head clamp that can coordinate working roll bearing block described in clamping with the clamp.
7. 7. Work Roll of Strip Rolling Mill roll-shifting device as claimed in claim 6, it is characterised in that：The clamp and the head clamp The 3rd slide plate being vertically arranged is fixedly connected with relative side, is provided between the clamp and the clamp via sidewall 4th slide plate.
8. 8. Work Roll of Strip Rolling Mill roll-shifting device as claimed in claim 1 or 2, it is characterised in that：The roll shifting hydraulic cylinder The free end of piston rod is fixedly connected with cylinder head, and the one end of the movable block away from the milling train fore side memorial archway is provided with and can covered If the cylinder head holding tank of the cylinder head, the end face of the bottom land and the cylinder head of the cylinder head holding tank leans, and the cylinder head holds The cell wall of groove of receiving has gap with the lateral wall of the cylinder head；The First of diameter reduction is provided with the lateral wall of the cylinder head Rank portion, on the cylinder head fixed cover be provided with end face and the first step portion against and the cylinder head can be axially fixed at institute The end cap on movable block is stated, is provided with the first cylinder head via for wearing the cylinder head at the center of the end cap, described One cylinder head via sidewall and the lateral wall of the cylinder head have gap.
9. 9. Work Roll of Strip Rolling Mill roll-shifting device as claimed in claim 8, it is characterised in that：The bottom land of the cylinder head holding tank Be fixedly installed can with the cylinder head end against the 5th slide plate, being provided with the end face of the end cap can be with the First Rank portion against and the 6th slide plate that is sheathed on outside the cylinder head, be provided with for wearing institute at the center of the 6th slide plate The second cylinder head via of cylinder head is stated, the second cylinder head via sidewall and the lateral wall of the cylinder head have gap.
10. 10. Work Roll of Strip Rolling Mill roll-shifting device as claimed in claim 1 or 2, it is characterised in that：The strip-mill strip work It is that roller roll-shifting device also includes dismantling and can adjust the zeroing group for demarcating the Work Roll of Strip Rolling Mill roll-shifting device position Part.