CN210411919U - Roll changing device - Google Patents
Roll changing device Download PDFInfo
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- CN210411919U CN210411919U CN201921023794.8U CN201921023794U CN210411919U CN 210411919 U CN210411919 U CN 210411919U CN 201921023794 U CN201921023794 U CN 201921023794U CN 210411919 U CN210411919 U CN 210411919U
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Abstract
The utility model relates to a rolling mill roll change field, concretely relates to roll changing device includes cart, tractor and roller system at least, still includes nitrogen gas spring, a pair of track, handle and draw the hook down, roller system include the middle roll, go up the working roll, down the working roll and middle roll down, go up between middle roll and the last working roll bearing frame, go up between working roll and the lower working roll bearing frame and all set up a pair of nitrogen gas spring down between working roll and the lower middle roll bearing frame, slide on the cart and set up the tractor, tractor and cart activity direction perpendicular to unit operation line, on the cart and be located the tractor both sides from last track and the track down of fixing in proper order down. The utility model discloses owing to pull other roller systems and carry out the technical means of hoist and mount from direction of height pair roller system through lower work roll, effectively solved among the prior art equipment heavy, the space is huge and with high costs scheduling problem, and then realized high-efficient intensive and the light technological effect of roll change.
Description
Technical Field
The utility model relates to a rolling mill roll change field, concretely relates to roll change device.
Background
The six-roller mill has wide application in the plastic forming process of various metal materials, and a roller changing system of the six-roller mill directly determines the production rhythm of an operation line and the space scale of unit equipment. Since the roll change cycle of the backup roll system is long and the roll surface accuracy of the intermediate roll and the work roll has a great influence on the surface quality and the accuracy of the product, research on the roll change system of the six-roll mill has been mainly spread around the roll change of the intermediate roll and the work roll.
The roll change of the six-roll mill is a process of dragging the old roll system out of the mill and pushing the new roll system into the mill by a roll changing car. The roll changing system of the traditional six-roll mill is characterized in that the roll changing equipment comprises an upper middle roll system, an upper working roll system, a lower working roll system and a lower middle roll system which are respectively provided with independent roll changing tracks, and the roll changing equipment is lifted out of the roll changing equipment from a transmission side of the roll changing equipment and lifted into the roll changing equipment from a new roll system after being far away from the mill, so that the roll changing system of the traditional six-roll mill has the following problems in use.
Firstly, the space is huge. The roll changing equipment is provided with the independent roll changing tracks for the upper intermediate roll system, the upper working roll system, the lower working roll system and the lower intermediate roll system, so that the roll changing equipment occupies a large space in the height direction. Furthermore, the roll changer must be at a sufficient distance from the rolling mill so that the roll system can be lifted out of or into the drive side of the roll changer, so that the roll changer associated with this roll change system takes up a considerable amount of space in the transverse span.
Secondly, the equipment is heavy. The huge space overhead of the roll changing equipment corresponding to the traditional roll changing system in the height direction causes the tonnage of the roll changing equipment to be heavy, and the gravity center of the equipment is higher due to the large height of the equipment. The large tonnage and the high gravity center limit the moving speed of the roll changing equipment, thereby greatly reducing the roll changing speed and the production rhythm.
Thirdly, the cost is high. The huge space requirement of the traditional roll changing system causes huge factory building and occupied land, the heavy equipment causes very high design and manufacturing cost of the roll changing equipment, and the equipment is a great waste of social resources and is very undesirable.
SUMMERY OF THE UTILITY MODEL
The utility model provides a roll-changing device has solved a great deal of problem that exists among the prior art, has realized the technological effect of high-efficient roll change.
The utility model provides a technical problem can adopt following technical scheme to realize:
the utility model provides a roll changing device includes cart, tractor and roller system at least, still includes nitrogen spring, a pair of track, handle and draw hook down, roller system include the middle roll, go up the working roll, down working roll and middle roll down, go up between middle roll and the last working roll bearing frame, go up between working roll and the lower working roll bearing frame and all set up a pair of nitrogen spring down between working roll and the middle roll bearing frame down, slide on the cart and set up the tractor, tractor and cart activity direction perpendicular to unit operation line, just be located the tractor both sides from last track and the lower track of fixing in proper order down, the handle is fixed in lower working roll one end, draw the hook can dismantle and connect in tractor one end.
A pair of grooves are respectively arranged on the opposite surfaces of the bearing seats at the two ends of the upper intermediate roll and the upper working roll, the opposite surfaces of the bearing seats at the two ends of the upper working roll and the lower working roll and the opposite surfaces of the bearing seats at the two ends of the lower working roll and the lower intermediate roll, the grooves opposite to the bearing seats of the upper intermediate roll and the upper working roll, the grooves opposite to the bearing seats of the upper working roll and the lower working roll and the grooves opposite to the bearing seats of the lower working roll and the lower intermediate roll are respectively provided with a nitrogen spring,
the nitrogen spring and the inner wall surface of the groove have a 2mm gap.
The upper track is composed of two movable rails and three fixed rails, the movable rails are arranged between the adjacent fixed rails, one end of each movable rail is hinged to the corresponding fixed rail, and the other end of each movable rail is in contact with the corresponding fixed rail.
The traction hook comprises a pair of supports, a pair of rotating shafts, a pair of hooks and a linkage rod, wherein the supports are fixed at one end of the tractor in a relative parallel mode, one ends of the hooks are hinged into the supports through the rotating shafts respectively, the lower surfaces of the other ends of the hooks are provided with a guide surface and a connecting groove, and the linkage rod is fixed between the other ends of the hooks.
The tractor is located on the lower track.
The utility model has the advantages that: due to the adoption of the technical means of dragging other roller systems through the lower working roller and hoisting the roller systems from the height direction, the problems of heavy equipment, large space, high cost and the like in the prior art are effectively solved, and the technical effects of high efficiency and intensive property and light roller change are further realized.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of the roller system of the present invention.
Fig. 3 is a front view of the roller system of the present invention.
Fig. 4 is a side view of the hook of the present invention.
Fig. 5 is a top view of the hook of the present invention.
Fig. 6 is a side view of the present invention.
Fig. 7 is a schematic view of the upper rail structure of the present invention.
In the figure: 1-cart; 2-a tractor; 3-a nitrogen spring; 4-upper track; 5-lower rail; 6-a handle; 7-a towing hook; 8-upper middle roller; 9-upper working roll; 10-lower working roll; 11-lower intermediate roll; 12-a movable rail; 13-a fixed rail; 14-a scaffold; 15-a rotating shaft; 16-hanging hooks; 17-a linkage bar; 18-a guide surface; 19-connecting groove.
Detailed Description
Example 1:
referring to fig. 1-7, which are schematic structural views of embodiment 1 of the present invention, a roll changing device at least comprises a cart 1, a tractor 2 and a roll system, and is characterized in that: still include nitrogen spring 3, a pair of track 4, a pair of track 5, handle 6 and towing hook 7 down on, the roller system include middle roller 8, go up work roll 9, work roll 10 and middle roller 11 down, go up between middle roller 8 and the last work roll 9 bearing frame, go up between work roll 9 and the lower work roll 10 bearing frame and all set up a pair of nitrogen spring 3 down between work roll 10 and the middle roller 11 bearing frame down, it sets up tractor 2 to slide on the cart 1, tractor 2 and 1 activity direction perpendicular to unit operation line of cart, just be located tractor 2 both sides from last to fixing in proper order track 4 and track 5 down under to in tractor 2 both sides on the cart 1, handle 6 is fixed in work roll 10 one end down, towing hook 7 can dismantle the connection in tractor 2 one end.
In actual use: firstly, the rolling mill is stopped, the rolling pressure of the rolling mill on a roll system is relieved, simultaneously, the nitrogen spring 3 stretches, the lower working roll 10, the upper working roll 9 and the upper intermediate roll 8 are jacked, the lower intermediate roll 11, the lower working roll 10, the upper working roll 9 and the upper intermediate roll 8 are separated from each other due to the nitrogen spring 3, then the cart 1 is started to move to a roll changing port of the rolling mill, then the tractor 2 moves towards the rolling mill direction, when the tractor moves to the vicinity of the roll system, the traction hook 7 on the tractor 2 is connected with the handle 6, then the tractor 2 is controlled to be far away from the rolling mill, the tractor 2 pulls the handle 6 through the traction hook 7, the lower intermediate roll 11, the lower working roll 10, the upper working roll 9 and the upper intermediate roll 8 move along with the traction, pulleys on two sides of the lower intermediate roll 11 enter the lower rail 5, pulleys on two sides of the lower working roll 10 enter the upper rail 4, and then the cart 1, moving to a rear limit position, sequentially lifting an upper middle roller 8, an upper working roller 9, a lower working roller 10 and a lower middle roller 11 through a crane or hoisting equipment, reversely lifting a new roller system onto an upper rail 4 and a lower rail 5 on the cart 1, sending the roller system into the rolling mill through the cart 1 and the tractor 2, pressing the roller system by the rolling mill, compressing the nitrogen spring 3 and contacting the roller systems.
Example 2:
on the basis of example 1, reference is made to fig. 2 and 3: go up the bearing frame opposite face at middle roller 8 and last working roll 9 both ends, go up the bearing frame opposite face at working roll 9 and lower working roll 10 both ends and the bearing frame opposite face at lower working roll 10 and lower middle roll 11 both ends and all opened a pair of recess, all set up nitrogen spring 3 in the recess of going up middle roller 8 and last working roll 9 bearing frame opposite face, the recess of going up working roll 9 and lower working roll 10 bearing frame opposite face and the recess of lower working roll 10 and lower middle roll 11 bearing frame opposite face.
In actual use: when the roller system is in the rolling mill, the nitrogen spring 3 is compressed due to the extrusion force of the rolling mill on the roller system, the roller system works normally, when the roller is changed, the extrusion force of the rolling mill on the roller system is released, and simultaneously, the nitrogen spring 3 is expanded, the roller system is jacked up, and the roller system is convenient to change.
Example 3:
on the basis of example 1, reference is made to fig. 2 and 3: the nitrogen spring 3 has a 2mm gap with the inner wall surface of the groove.
In actual use: the clearance of 2mm can guarantee that the roller system does not produce the contact with nitrogen spring 3 outer wall face when the rolling mill is worked, reduces the friction, because the roller system dead weight is heavier, nitrogen spring 3 is more stable between the roller system, and the roller system can not take place to turn on one's side when moving.
Example 4:
with reference to fig. 1, 6 and 7, on the basis of example 1: go up track 4 and comprise two movable rails 12 and three fixed rail 13, it is three set up movable rail 12 between fixed rail 13 is adjacent, movable rail 12 one end is articulated with fixed rail 13, the movable rail other end and fixed rail 13 contact.
In actual use: when the lower middle roller 11 is hoisted, the movable rail 12 is erected, then the lower middle roller 11 is hoisted, and the wider bearing seat of the lower middle roller 11 can be smoothly loaded or hoisted out from the upper rail 4 with narrower opening degree through the opening and closing of the movable rail 12.
Example 5:
on the basis of embodiment 1, refer to fig. 4, 5 and 7: the traction hook 7 is composed of a pair of supports 14, a pair of rotating shafts 15, a pair of hooks 16 and a linkage rod 17, the supports 14 are fixed at one end of the tractor 2 in a relatively parallel mode, one ends of the hooks 16 are hinged in the supports 14 through the rotating shafts 15 respectively, the lower surface of the other end of each hook 16 is provided with a guide surface 18 and a connecting groove 19, and the linkage rod 17 is fixed between the other ends of the hooks 16.
In actual use: handle 6 is pushed and pulled simultaneously through two couples 16, can make the roll system can not take place the skew when removing, can guarantee through gangbar 17 that two couples 16 are synchronous when using pivot 15 to rotate as the pin joint, make the angle that couple 16 lifted the same, can be when couple 16 striking handle 6 through guide surface 18 simultaneously, handle 6 contacts guide surface 18 at first, because guide surface 18 has the slope, make couple 16 lift, then handle 6 gets into the spread groove 19, accomplish and articulate, then through tractor 2 back-and-forth movement, pulling support 14, support 14 drives couple 16 through pivot 15, couple 16 drives handle 6 and removes, handle 6 drives the roll system and removes, when hoisting the roll system from cart 1, turn over handle 6 to tractor 2 directions, can prevent that unable normal hoist when the roll system is transferred by the crane.
Example 6:
on the basis of example 1, reference is made to fig. 1: the tractor 2 is located on the lower track 5.
In actual use: the tractor 2 is positioned on the lower rail 5, so that the erection of the tractor 2 rail can be saved, the load of the cart 1 can be reduced, and the investment of resources can be saved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all such changes are within the scope of the present invention.
Claims (6)
1. The utility model provides a roll-changing device, includes cart (1), tractor (2) and roller system at least, its characterized in that: still include nitrogen spring (3), a pair of track (4), a pair of track (5) down, handle (6) and draw hook (7) of going up, roller system include middle roller (8), go up work roll (9), down work roll (10) and middle roller (11) down, go up between middle roller (8) and the last work roll (9) bearing frame, go up between work roll (9) and the lower work roll (10) bearing frame and all set up a pair of nitrogen spring (3) between lower work roll (10) and the middle roller (11) bearing frame down, it sets up tractor (2) to slide on cart (1), tractor (2) and cart (1) activity direction perpendicular to unit operation line, just be located tractor (2) both sides and fix in proper order last track (4) and track (5) down on cart (1), handle (6) are fixed in work roll (10) one end down, the traction hook (7) is detachably connected to one end of the tractor (2).
2. A roll changing device according to claim 1, characterized in that: go up middle roller (8) and the bearing frame opposite face at last working roll (9) both ends, go up working roll (9) and the bearing frame opposite face at lower working roll (10) both ends and lower working roll (10) and the bearing frame opposite face at middle roller (11) both ends down and all opened a pair of recess, all set up nitrogen spring (3) in the recess of going up middle roller (8) and last working roll (9) bearing frame opposite face, going up working roll (9) and lower working roll (10) bearing frame opposite face and the recess of lower working roll (10) and lower middle roll (11) bearing frame opposite face.
3. A roll changing device according to claim 2, characterized in that: the nitrogen spring (3) has a 2mm gap with the inner wall surface of the groove.
4. A roll changing device according to claim 1, characterized in that: go up track (4) and constitute, three by two activity rails (12) and three stationary rail (13) set up activity rail (12) between stationary rail (13) are adjacent, activity rail (12) one end is articulated with stationary rail (13), activity rail (12) other end and stationary rail (13) contact.
5. A roll changing device according to claim 1, characterized in that: the traction hook (7) is composed of a pair of supports (14), a pair of rotating shafts (15), a pair of hooks (16) and a linkage rod (17), the supports (14) are fixed at one end of the tractor (2) in a relative parallel mode, one end of each hook (16) is hinged to one of the supports (14) through the rotating shafts (15), the lower surface of the other end of each hook (16) is provided with a guide surface (18) and a connecting groove (19), and the linkage rod (17) is fixed between the other ends of the hooks (16).
6. A roll changing device according to claim 1, characterized in that: the tractor (2) is positioned on the lower track (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921023794.8U CN210411919U (en) | 2019-07-03 | 2019-07-03 | Roll changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921023794.8U CN210411919U (en) | 2019-07-03 | 2019-07-03 | Roll changing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210411919U true CN210411919U (en) | 2020-04-28 |
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ID=70378571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921023794.8U Active CN210411919U (en) | 2019-07-03 | 2019-07-03 | Roll changing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210411919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227717A (en) * | 2019-07-03 | 2019-09-13 | 中国重型机械研究院股份公司 | A kind of changing rig and method |
-
2019
- 2019-07-03 CN CN201921023794.8U patent/CN210411919U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227717A (en) * | 2019-07-03 | 2019-09-13 | 中国重型机械研究院股份公司 | A kind of changing rig and method |
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