CN215508342U

CN215508342U - Roller changing device of section mill

Info

Publication number: CN215508342U
Application number: CN202122143397.8U
Authority: CN
Inventors: 杨春斌
Original assignee: Tangshan Fengrun Xinyiyuan Iron And Steel Co Ltd
Current assignee: Tangshan Fengrun Xinyiyuan Iron And Steel Co Ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-01-14
Anticipated expiration: 2031-09-07

Abstract

The application relates to a section steel rolling mill roll changing device belongs to the field of section steel production, including setting up the inside base that is used for accepting the roll in the rolling mill, the rolling mill includes the frame, the inside cavity of seting up of frame, the base slides and sets up in the bottom of cavity, be provided with the locking Assembly with roll pressfitting on the base. The roller has the effect of reducing the possibility of the roller turning over or rolling off.

Description

Roller changing device of section mill

Technical Field

The application relates to the field of section steel production, in particular to a roll changing device of a section steel rolling mill.

Background

The rolling mill is a device for realizing the metal rolling process and can be divided into two rollers, four rollers, six rollers and the like according to the number of rollers, wherein the H-shaped steel is formed by rolling a plurality of two-roller rolling mills for many times.

The rolling mill is internally provided with two rollers which are opposite up and down, a screw-down device is arranged above the upper roller in the rolling mill and controls the lifting of the upper roller, a base is arranged below the rollers in the rolling mill in a sliding manner and is used for supporting the rollers. In the process of rolling the section steel, the billet steel needs to enter from one side of the rolling mill, and the billet steel entering the rolling mill can be molded into the required section steel through the rolling of the rollers. Because the steel billet is refined at high temperature and is still kept in a high-temperature state in the rolling process of the roller, the roller can be damaged in the contact process with the steel billet, and the damaged roller needs to be replaced in time. In the related art, a hydraulic cylinder is connected with a base during roll changing, and the hydraulic cylinder can push and pull the base during stretching, so that a roll can be taken out, and the roll can be lifted up and replaced by a crane after the roll is taken out.

In view of the above-mentioned related technologies, the inventor believes that the roll may not be replaced in time after being taken out of the rolling mill, and the roll may roll on the base, so that the roll may roll over, and the safety of the roll changing personnel may be threatened.

SUMMERY OF THE UTILITY MODEL

In order to reduce the possibility that the roll turns on one's side or rolls off, the application provides a section rolling mill roll changing device.

The application provides a section mill roll change device adopts following technical scheme:

the utility model provides a section steel rolling mill roll change device, is including setting up the inside base that is used for accepting the roll in the rolling mill, the rolling mill includes the frame, the inside cavity of seting up of frame, the base slides and sets up in the bottom of cavity, be provided with the locking Assembly with roll pressfitting on the base.

By adopting the technical scheme, when the roller is replaced, the roller needs to be pulled out of the rolling mill, after the roller is taken out of the rolling mill, the roller is horizontally placed on the base and can turn over and slide off from the base, and the locking assembly can be arranged to fix the roller on the base in the roller replacement process, so that the possibility of the roller turning over or rolling off is reduced.

Optionally, the base is fixedly connected with an arc-shaped block, and the top of the arc-shaped block is downwards sunken and the sunken position is arc-shaped.

Through the scheme, the roller is horizontally placed on the base and can slide on the base, and the roller can be fixed in the process of pulling the roller to move by arranging the groove, so that the possibility of rollover of the roller when the base moves is reduced.

Optionally, the locking assembly comprises a steel wire rope, the two end faces of the arc-shaped block are respectively fixedly connected with a fixing block, the fixing block is provided with a mounting hole for the steel wire rope to pass through, and the two ends of the steel wire rope sequentially pass through the fixing block and the base on the same side and are fixed.

Through the scheme, when the roller is taken out of the rolling mill, the steel wire rope is pressed on the upper portion of the roller, the two ends of the steel wire rope respectively penetrate through the corresponding fixing blocks, the end portions of the steel wire rope can be fixed through the fixing blocks, and the roller can be locked.

Optionally, thread sections are respectively arranged at two ends of the steel wire rope, a fixed pulley is installed at a position, corresponding to the end of the steel wire rope, of the bottom of the base, a vertical locking plate is fixedly connected to the bottom of the base, the line direction of the locking plate and the fixed pulley is along the axial direction of the roller, the end of the steel wire rope is wound on the fixed pulley and penetrates through the locking plate, and a locking nut is connected to the end, penetrating through the locking plate, of the thread section through a thread.

Through the scheme, when the end part of the steel wire rope needs to be fixed, the end part of the steel wire rope penetrates through the base and is wound on the fixed pulley, and after the end part of the steel wire rope bypasses the fixed pulley, the end part of the steel wire rope penetrates through the locking plate, and finally the end part of the steel wire rope is fixed by the locking nut. Because the steel wire rope is possibly longer, the steel wire rope can be steered by arranging the fixed pulley, and the steel wire rope is prevented from being too long and contacting the ground.

Optionally, the steel wire rope is connected in series with a plurality of rubber blocks tightly attached to the roller body.

By the scheme, on one hand, the friction force between the steel wire rope and the roller can be improved, so that the locking effect of the steel wire rope on the roller is improved; on the other hand, the steel wire rope can be prevented from being in direct contact with the roller, so that the possibility of abrasion between the steel wire rope and the roller is reduced.

Optionally, a rubber pad is arranged at the mounting hole of the fixing block and between the fixing block and the steel wire rope.

Through the scheme, the abrasion of the steel wire rope and the fixing block can be reduced, and the service life of the steel wire rope is further prolonged.

Optionally, the base is provided with a limiting assembly on each of two sides of the roller.

Through the scheme, the two sides of the roller can be limited, so that the possibility that the roller rolls down along the base can be further reduced.

Optionally, the limiting assembly comprises a sleeve fixedly connected with the base, an extension plate is inserted into the sleeve, a long-strip-shaped hole is formed in the sleeve, and a second fixing bolt is arranged on the sleeve by sequentially penetrating the long-strip-shaped hole and the extension plate.

Through the scheme, when the type of the roller is not one, the relative position between the extension plate and the sleeve is adjusted, and after the adjustment is finished, the extension plate and the sleeve are fixed by the second fixing bolt, so that the rollers of different types can be limited.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the process of roll replacement, the locking assembly is arranged to fix the roll, so that the risk of side turning or slipping is reduced;

2. the steel wire rope is connected with the plurality of rubber blocks in series, so that the steel wire rope can be pressed on the roller more tightly, and meanwhile, the steel wire rope can be prevented from being directly contacted with the roller, the abrasion between the steel wire rope and the roller is reduced, and the service life of the steel wire rope is prolonged;

3. through setting up height-adjustable's spacing subassembly, can block the both sides of roll to reduce the risk of roll landing.

Drawings

FIG. 1 is a front view mainly showing a roll changing device of a section mill.

Fig. 2 is a schematic view mainly showing the structure of the roll.

Fig. 3 is a schematic view of the locking assembly as embodied generally.

Fig. 4 is a schematic view mainly embodying the traction apparatus.

Fig. 5 is a schematic view mainly showing the structure of the plug.

Fig. 6 is a schematic view of a spacing assembly.

Description of reference numerals:

1. a rolling mill; 11. a cavity; 12. rolling; 121. a shaft head; 122. a roll neck; 123. a roll body; 13. a fixing plate; 131. a chute; 132. a bearing seat; 14. a first slide rail; 15. a frame; 2. a base; 21. a pulley; 22. an arc-shaped block; 221. a fixed block; 2211. mounting holes; 222. a rubber pad; 223. a first fixing bolt; 23. a limiting component; 231. a sleeve; 2311. a strip-shaped hole; 232. an extension plate; 233. A second fixing bolt; 24. a first ear plate; 3. a locking assembly; 31. a wire rope; 32. a rubber block; 33. a fixed pulley; 34. a locking plate; 4. a traction device; 41. a hydraulic cylinder; 42. a connecting plate; 43. a second ear panel; 44. a first latch; 45. a second bolt; 5. a second slide rail.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a section steel rolling mill roll changing device. With reference to fig. 1, the roll-changing device comprises a base 2 located inside the rolling mill 1, a locking assembly 3 arranged on the base 2 and a traction device 4 arranged outside the rolling mill 1 and interconnected with the base 2. The rolling mill 1 comprises a rack 15 placed on a horizontal ground, a cavity 11 is formed in the rack 15, the cavity 11 is communicated with the outer side of the rolling mill 1, two rollers 12 are installed in the cavity 11, and the two rollers 12 are placed in parallel to the horizontal plane and are not in contact with each other. The bed 2 is positioned directly below the lower roll 12, and when the roll 12 needs to be replaced, the bed 2 is pushed and pulled by the traction device 4, so that the roll 12 can be taken out and replaced.

Referring to fig. 1 and 2, the roll 12 includes a roll body 123, two end surfaces of the roll body 123 are fixedly connected with roll necks 122 respectively, end surfaces of the two roll necks 122 far away from the roll body 123 are fixedly connected with shaft heads 121 respectively, the roll body 123, the roll neck 122 and the shaft heads 121 are all cylindrical, and diameters of the roll body 123, the roll neck 122 and the shaft heads 121 are reduced in sequence. A gear box connected with the two rollers 12 is arranged on one side of the frame 15 far away from the traction device 4, and a driving motor connected with the gear box is arranged on the gear box (the gear box and the driving motor are prior art and are not shown in the figure).

The shaft head 121 close to the traction device 4 is sleeved with a fixing plate 13, the fixing plate 13 is fixedly connected with a bearing seat 132 rotatably connected with the shaft head 121, sliding grooves 131 are respectively formed in two sides of the shaft head 121 on the fixing plate 13, the length direction of each sliding groove 131 is along the vertical direction, and bolts are respectively fixed on the side wall of the frame 15 at positions opposite to the two sliding grooves 131.

When the roller 12 needs to be installed, the roller 12 is placed inside the frame 15 such that one end of the roller 12 is connected to the gear box, and then the fixing plate 13 is fixed to the frame 15 by bolts, thereby installing the roller 12 in the cavity 11.

Two first slide rails 14 which are parallel to each other are laid on the frame 15 at the bottom of the cavity 11, the first slide rails 14 are parallel to the rollers 12, and the length of the first slide rails 14 is equal to that of the cavity 11. The four corners of the base 2 are respectively provided with a pulley 21, and the base 2 is in sliding fit with the first slide rail 14 through the pulleys 21. Two second slide rails 5 are arranged outside the rolling mill 1, the second slide rails 5 are arranged at the same height as the first slide rails 14, and the second slide rails 5 correspond to the first slide rails 14 one by one.

One side of the base 2 close to the roller 12 is fixedly connected with an arc block 22, the surface of the arc block 22 contacting with the roller 12 is downward concave and is arc-shaped, the diameter of the arc surface on the arc block 22 is equal to that of the roller body 123, and when the roller 12 is placed on the base 2, the roller body 123 is tightly attached in the arc block 22.

Referring to fig. 1 and 3, the locking assembly 3 includes a wire rope 31 and a plurality of rubber blocks 32 disposed on the wire rope 31. The fixing blocks 221 are respectively welded on two end faces, far away from the base 2, of the arc-shaped blocks 22, mounting holes 2211 which horizontally penetrate through the fixing blocks 221 are formed in the fixing blocks 221, when the roller 12 needs to be locked, two ends of the steel wire rope 31 respectively penetrate through the corresponding mounting holes 2211, then two ends of the steel wire rope 31 are respectively locked, and therefore the roller 12 is locked on the base 2. The friction force on the roller 12 can be enhanced on one hand and the locking effect on the roller 12 is improved on the other hand by connecting the plurality of rubber blocks 32 on the steel wire rope 31; on the other hand, the steel wire rope 31 can be prevented from directly contacting the rolling roller 12, and the possibility of abrasion between the steel wire rope 31 and the rolling roller 12 is reduced.

Two fixed pulleys 33 are mounted on the lower surface of the base 2, the fixed pulleys 33 correspond to the end portions of the steel wire rope 31, locking plates 34 are fixedly connected to the positions, close to the fixed pulleys 33, on the lower bottom surface of the base 2 respectively, and the connecting line direction of the fixed pulleys 33 and the locking plates 34 is along the length direction of the base 2. Threaded sections are respectively arranged at two ends of the steel wire rope 31, when the two ends of the steel wire rope 31 need to be locked, the two ends of the steel wire rope 31 respectively penetrate through the corresponding fixing blocks 221, then the two ends of the steel wire rope 31 respectively penetrate through the base 2 vertically and downwards, the steel wire rope 31 penetrates through the base 2 and then winds on the corresponding fixed pulley 33, then the position of the steel wire rope 31 with the threaded sections penetrates through the locking plate 34, and finally the locking nut is screwed on the threaded sections and is positioned on one side, far away from the fixed pulley 33, of the locking plate 34, so that the roller 12 can be locked on the base 2.

A rubber pad 222 is arranged between the steel wire rope 31 and the fixed block 221 in the mounting hole 2211, two ends of the rubber pad 222 penetrate through the mounting hole 2211 and are outwards turned and attached to the side wall of the fixed block 221, and the outwards turned part of the rubber pad 222 is fixed on the side wall of the fixed block 221 by a first fixing bolt 223. By providing the rubber pad 222 in the mounting hole 2211, the wire rope 31 can be prevented from directly contacting the fixed block 221, and the possibility of relative wear between the wire rope 31 and the fixed block 221 can be reduced.

Referring to fig. 4 and 5, two first ear plates 24 are fixedly connected to one end surface of the base 2 close to the traction device 4, and the two first ear plates 24 are arranged in parallel relatively. The traction device 4 comprises a hydraulic cylinder 41 fixed on the ground outside the frame 15 and a connecting plate 42 fixed on the piston rod of the hydraulic cylinder 41, a second lug plate 43 is fixedly connected on the side wall of the connecting plate 42 far away from the hydraulic cylinder 41, and when the traction device 4 is connected with the base 2, the second lug plate 43 is just inserted between the two first lug plates 24.

When the first lug plate 24 and the second lug plate 43 need to be connected, the first bolt 44 sequentially penetrates through the first lug plate 24 and the second lug plate 43, and then the second bolt 45 penetrates through the first bolt 44 along the radial direction of the first bolt 44, so that the first lug plate 24 and the second lug plate 43 can be connected, and at the moment, the traction device 4 can pull the base 2 to move.

Referring to fig. 2 and 6, the base 2 is further provided with a limiting assembly 23 on each of the two sides of the roller 12, and the limiting assemblies 23 can further limit the two sides of the roller 12, so that the possibility that the roller 12 rolls off is reduced. The position limiting assembly 23 includes a sleeve 231 fixedly connected to the upper surface of the base 2, the top of the sleeve 231 is open, and an extending plate 232 is slidably inserted into the sleeve 231. The side wall of the sleeve 231 is provided with a vertically arranged elongated hole 2311, the bottom penetrating through the elongated hole 2311 and the extension plate 232 is provided with a second fixing bolt 233, the height of the extension plate 232 can be adjusted according to the size difference of the roller 12, when the height of the extension plate 232 needs to be adjusted, the position of the extension plate 232 in the sleeve 231 is adjusted, and then the sleeve 231 and the extension plate 232 are fixed by screwing the second fixing bolt 233.

The application embodiment of the roller changing device of the section steel rolling mill has the following implementation principles: when the roller 12 in the frame 15 needs to be taken out for replacement, the hydraulic cylinder 41 is firstly started to extend the hydraulic cylinder 41, the hydraulic cylinder 41 can drive the connecting plate 42 to move towards the direction close to the base 2 when extending, and then the first bolt 44 penetrates through the first lug plate 24 and the second lug plate 43, so that the hydraulic cylinder 41 and the base 2 can be connected with each other; and then the hydraulic cylinder 41 is started again to enable the hydraulic cylinder 41 to contract, at this time, the hydraulic cylinder 41 can drive the base 2 to move to the outside of the frame 15 along the first slide rail 14 and the second slide rail 5, and the locking assembly 3 is used for locking the roller 12 after the base 2 moves out of the frame 15, so that the risk that the roller 12 slides down is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a section mill roll change device, is used for accepting base (2) of roll (12) including setting up in rolling mill (1) inside, rolling mill (1) includes frame (15), cavity (11) are seted up to frame (15) inside, base (2) slide to set up in the bottom of cavity (11), its characterized in that: the base (2) is provided with a locking component (3) which presses the roller (12) on the base (2).

2. A rolling mill roll-changing apparatus according to claim 1, wherein: fixedly connected with arc piece (22) on base (2), the top undercut and the sunk position of arc piece (22) are the arc.

3. A rolling mill roll-changing apparatus according to claim 2, wherein: locking Assembly (3) include wire rope (31), be fixedly connected with fixed block (221) on two terminal surfaces of arc piece (22) respectively, set up mounting hole (2211) that supply wire rope (31) to pass on fixed block (221), base (2) and fix of homonymy are passed in proper order at the both ends of wire rope (31).

4. A rolling mill roll-changing apparatus according to claim 3, wherein: the steel wire rope roll is characterized in that thread sections are respectively arranged at two ends of the steel wire rope (31), a fixed pulley (33) is installed at a position, corresponding to the end of the steel wire rope (31), of the bottom of the base (2), a vertical locking plate (34) is fixedly connected to the bottom of the base (2), the line direction of the locking plate (34) and the fixed pulley (33) is along the axial direction of the roller (12), the end of the steel wire rope (31) is wound on the fixed pulley (33) and penetrates through the locking plate (34), and the thread section penetrates through the end of the locking plate (34) and is connected with a locking nut in a threaded mode.

5. A rolling mill roll-changing apparatus according to claim 3, wherein: the steel wire rope (31) is connected with a plurality of rubber blocks (32) which are tightly attached to the roller body (123) in series.

6. The roll changing device of the section mill according to claim 3, wherein a rubber pad (222) is arranged between the fixed block (221) and the steel wire rope (31) at the mounting hole (2211) of the fixed block (221).

7. A rolling mill roll-changing apparatus according to claim 1, wherein: and limiting assemblies (23) are respectively arranged on the two sides of the roller (12) on the base (2).

8. A rolling mill roll-changing device according to claim 7, characterized in that: spacing subassembly (23) including with base (2) fixed connection's sleeve pipe (231), an extension board (232) of pegging graft on sleeve pipe (231), set up vertically setting rectangular hole (2311) on sleeve pipe (231), it is provided with second fixing bolt (233) to wear rectangular hole (2311) and extension board (232) in proper order.