CN220177853U - Oblique wedge dismounting device for roller shifting cylinder of rolling mill - Google Patents
Oblique wedge dismounting device for roller shifting cylinder of rolling mill Download PDFInfo
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- CN220177853U CN220177853U CN202321669251.XU CN202321669251U CN220177853U CN 220177853 U CN220177853 U CN 220177853U CN 202321669251 U CN202321669251 U CN 202321669251U CN 220177853 U CN220177853 U CN 220177853U
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- lifting frame
- lifting beam
- rolling mill
- wedge
- upright post
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- 238000005096 rolling process Methods 0.000 title claims abstract description 39
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a rolling mill roll shifting cylinder inclined wedge dismounting device which comprises a lifting frame and 2 hydraulic jacks, wherein the lifting frame is provided with a lifting frame; the lifting frame is of a split structure and consists of an upper lifting frame, a lower lifting frame and a connecting piece; the bottom of the lower lifting frame is provided with a lower lifting beam, and the lower lifting beam is arranged at the bottom of the wedge when the wedge is disassembled; an upper lifting beam is arranged at the top of the upper lifting frame, and two ends of the upper lifting beam extend out of the upper lifting frame and are respectively connected with the corresponding hydraulic jacks. The dismounting device adopts the split lifting frame to be matched with the hydraulic jack, so that the wedge can be safely, quickly and conveniently taken out without damaging surrounding equipment; the device has simple structure, easy manufacture and operation and high working efficiency.
Description
Technical Field
The utility model relates to the technical field of equipment overhaul, in particular to a rolling mill roll shifting cylinder inclined wedge dismounting device.
Background
A five-stand combined rolling mill set for cold rolling is composed of 3 pairs of different rollers, which are respectively a supporting roller, a middle roller and a working roller, and is also called a six-roller rolling mill. The wedge adjusting device of the six-roller mill is arranged at the lower part of the mill frame, and when the roller is replaced, the wedge adjusting device moves out to enable the lower working roller, the lower middle roller and the lower supporting roller to move to the lower limit position; after the roll replacement is completed, the position of the wedge is adjusted according to the roll diameter of the new roll, so that the rolling line is ensured to be constant in the whole roll diameter variation range. The wedge adjusting device consists of a wedge and a roll shifting hydraulic cylinder (roll shifting cylinder for short). The wedge on the transmission side and the operation side is driven to move by the same roller shifting cylinder on the operation side, so that the stepless adjustment of the wedge adjusting device is realized. The slope of the wedge is typically 7.5 °, and the vertical heights of the lower backup roll, lower intermediate roll, and lower work roll are adjusted by moving in and out.
The inclined wedges are frequently extruded in the working process of the rolling mill, so that deformation and clamping are very easy to occur, and the disassembly is difficult during maintenance; meanwhile, because the working space between the rolling mill frames is narrow, how to take out the skew smoothly is always a difficult problem when the roll shifting cylinder and the skew are replaced. In the past, the electric welding equipment is often used for cutting, so that the working environment is poor, the working efficiency is low, and equipment nearby the wedge is easily damaged; in addition, the fire between rolling mill frames belongs to primary fire operation, and a large safety risk exists.
Disclosure of Invention
The utility model provides a rolling mill roll shifting cylinder inclined wedge dismounting device, which adopts a split lifting frame to be matched with a hydraulic jack, so that the inclined wedge can be safely, quickly and conveniently taken out without damaging surrounding equipment; the device has simple structure, easy manufacture and operation and high working efficiency.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the oblique wedge dismounting device of the rolling mill scurrying cylinder comprises a lifting frame and 2 hydraulic jacks; the lifting frame is of a split type structure and consists of an upper lifting frame, a lower lifting frame and a connecting piece; the bottom of the lower lifting frame is provided with a lower lifting beam, and the lower lifting beam is arranged at the bottom of the wedge when the wedge is disassembled; an upper lifting beam is arranged at the top of the upper lifting frame, and two ends of the upper lifting beam extend out of the upper lifting frame and are respectively connected with corresponding hydraulic jacks; the fixed end of the hydraulic jack is arranged on the rolling mill frame, and the extending end of the hydraulic jack is contacted with the lower surface of the upper lifting beam.
Further, the upper lifting frame consists of an upper upright post, an upper lifting beam and a reinforcing beam; the 2 upper upright posts are perpendicular to the upper lifting beam, and the top parts of the upper upright posts are fixedly connected with the bottom parts of the upper lifting beams; the distance between the 2 upper upright posts is larger than the length of the wedge in the corresponding direction; two ends of the upper lifting beam extend to the outer sides of the upper upright posts, and 2 hydraulic jacks are respectively positioned at two overhanging ends of the upper lifting beam; the stiffening beam is of a vertical plate structure, is arranged at the top of the upper lifting beam, and is arranged along the central axis of the upper lifting beam in a through length mode.
Further, the lower lifting frame consists of a lower upright post and a lower lifting beam; the 2 lower upright posts are arranged in one-to-one correspondence with the upper upright posts, and the bottoms of the lower upright posts are connected with the tops of the lower lifting beams; the lower upright post and the lower lifting beam are of an integrated structure; the widths of the lower upright post and the lower lifting beam are smaller than the widths of the corresponding side gaps of the wedge and the rolling mill stand.
Further, the widths of the lower upright post and the lower lifting beam are 40-50 mm, and the widths of the upper upright post and the lower upright post are equal.
Further, the connecting piece consists of a connecting plate and a connecting bolt; connecting plates are respectively arranged on two sides of the connecting position of the upper upright post and the lower upright post, and 1 group of connecting bolts are respectively arranged between the connecting plates and the upper upright post and between the connecting plates and the lower upright post.
Further, each set of connecting bolts comprises 2 connecting bolts, and the connecting bolts are high-strength shear bolts.
Compared with the prior art, the utility model has the beneficial effects that:
the split lifting frame is matched with the hydraulic jack, so that the wedge can be safely, quickly and conveniently taken out without damaging surrounding equipment; the device has simple structure, easy manufacture and operation and high working efficiency.
Drawings
FIG. 1 is a schematic view showing an operation state of a rolling mill roll shifting cylinder inclined wedge disassembling device according to the present utility model.
Fig. 2 is a front view of the lifting frame according to the present utility model.
Fig. 3 is a side view of fig. 2.
In the figure: 1. lifting frame 11, upper upright 12, upper lifting beam 13, reinforcing beam 14, lower upright 15, lower lifting beam 16, connecting plate 17, connecting bolt 2, hydraulic jack 3, rolling stand 4, wedge
Detailed Description
The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:
as shown in fig. 1 to 3, the rolling mill roll shifting cylinder inclined wedge dismounting device comprises a lifting frame 1 and 2 hydraulic jacks 2; the lifting frame 1 is of a split type structure and consists of an upper lifting frame, a lower lifting frame and a connecting piece; the bottom of the lower lifting frame is provided with a lower lifting beam 15, and the lower lifting beam 15 is arranged at the bottom of the inclined wedge 4 when the inclined wedge 4 is disassembled; the top of the upper lifting frame is provided with an upper lifting beam 12, and two ends of the upper lifting beam 12 extend out of the upper lifting frame and are respectively connected with the corresponding hydraulic jacks 2; the fixed end of the hydraulic jack 2 is placed on the rolling stand 3, and the extended end of the hydraulic jack 2 is in contact with the lower surface of the upper lifting beam 12.
Further, the upper lifting frame consists of an upper upright post 11, an upper lifting beam 12 and a reinforcing beam 13; the 2 upper upright posts 11 are arranged perpendicular to the upper lifting beam 12, and the top of each upper upright post 11 is fixedly connected with the bottom of each upper lifting beam 12; the distance between the 2 upper upright posts 11 is larger than the length of the wedge 4 in the corresponding direction; two ends of the upper lifting beam 12 extend to the outer sides of the upper upright posts 11, and 2 hydraulic jacks 2 are respectively positioned at two overhanging ends of the upper lifting beam 12; the stiffening beam 13 is a vertical plate structure, is arranged at the top of the upper lifting beam 12, and is arranged along the central axis of the upper lifting beam 12 in a through length manner.
Further, the lower lifting frame consists of a lower upright post 14 and a lower lifting beam 15; the 2 lower upright posts 14 are arranged in one-to-one correspondence with the upper upright posts 11, and the bottoms of the lower upright posts 14 are connected with the tops of the lower lifting beams 15; and the lower upright post 14 and the lower lifting beam 15 are of an integrated structure; the width of the lower upright post 14 and the lower lifting beam 15 is smaller than the width of the corresponding side gap of the wedge 4 and the rolling mill frame 3.
Further, the widths of the lower upright 14 and the lower lifting beam 15 are 40-50 mm, and the width of the upper upright 11 is equal to the width of the lower upright 14.
Further, the connecting piece consists of a connecting plate 16 and a connecting bolt 17; connecting plates 16 are respectively arranged on two sides of the connecting position of the upper upright 11 and the lower upright 14, and 1 group of connecting bolts 17 are respectively arranged between the connecting plates 16 and the upper upright 11 and between the connecting plates 16 and the lower upright 14.
Further, each set of connecting bolts includes 2 connecting bolts 17, and the connecting bolts 17 are high-strength shear bolts.
The application method of the rolling mill roll shifting cylinder inclined wedge dismounting device comprises the following steps:
because the space of the rolling mill at the upper part of the inclined wedge 4 is limited, when the inclined wedge 4 is disassembled, the disassembling device is in a split state; the lower lifting frame stretches into a rolling mill space at the lower part of the inclined wedge 4 from one side of the rolling mill frame 3, the 2 lower upright posts 14 are respectively positioned at the two outer sides of the inclined wedge 4, the lower lifting frame is moved upwards, the tops of the 2 lower upright posts 14 of the lower lifting frame stretch out of the rolling mill frame 3 upwards from the two sides of the inclined wedge 4, then the upper lifting frame and the lower lifting frame are assembled in the rolling mill space at the upper part of the inclined wedge 4 through connecting pieces, and after the integral lifting frame 1 is assembled, 1 hydraulic jack 2 is respectively arranged at the two ends of the lifting frame 1; the lower end of the hydraulic jack 2 is supported on the rolling mill frame 3, and the upper end is abutted against the top surface of the upper lifting beam 12; then 2 hydraulic jacks 2 are synchronously started, the inclined wedge 4 is driven to move upwards through the lifting frame 1, and finally the inclined wedge 4 is smoothly detached from the rolling mill frame 3.
The following examples are given by way of illustration of detailed embodiments and specific procedures based on the technical scheme of the present utility model, but the scope of the present utility model is not limited to the following examples.
[ example ]
In the embodiment, the rolling mill scurrying cylinder inclined wedge dismounting device is adopted to dismount the scurrying cylinder inclined wedge in the 3-frame 1250 reversible rolling mill in the five-frame tandem rolling mill.
As shown in fig. 2 and 3, in the present embodiment, the rolling mill roll shifting cylinder inclined wedge dismounting device includes a lifting frame 1 and a hydraulic jack 2; the lifting frame 1 is of a split structure and consists of an upper lifting frame, a lower lifting frame and connecting pieces.
The upper lifting frame is formed into a n-shaped structure by an upper upright post 11, an upper lifting beam 12 and a reinforcing beam 13; the hydraulic jacks 2 are respectively arranged at two overhanging ends of the upper lifting beam 12; the reinforcement beam 13 is disposed along the central axis of the upper lifting beam 12.
The lower lifting frame is formed into a U-shaped structure by a lower upright post 14 and a lower lifting beam 15; the 2 lower upright posts 14 are arranged in one-to-one correspondence with the upper upright posts 11, and the lower upright posts 14 and the lower lifting beams 15 are of an integrated structure.
In this embodiment, the widths of the upper upright 11, the lower upright 14 and the lower lifting beam 15 are all 40mm.
The connecting piece consists of a connecting plate 16 and a connecting bolt 17; connecting plates 16 are respectively arranged on two sides of the connecting positions of the upper upright 11 and the lower upright 14, 2 connecting bolts 17 (8 connecting bolts in total) are respectively arranged between the connecting plates 16 and the upper upright 11 and between the connecting plates 16 and the lower upright 14, and the connecting bolts 17 are high-strength shear bolts.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme and the concept of the present utility model, and should be covered by the scope of the present utility model.
Claims (6)
1. The rolling mill roll shifting cylinder inclined wedge dismounting device is characterized by comprising a lifting frame and 2 hydraulic jacks; the lifting frame is of a split type structure and consists of an upper lifting frame, a lower lifting frame and a connecting piece; the bottom of the lower lifting frame is provided with a lower lifting beam, and the lower lifting beam is arranged at the bottom of the wedge when the wedge is disassembled; an upper lifting beam is arranged at the top of the upper lifting frame, and two ends of the upper lifting beam extend out of the upper lifting frame and are respectively connected with corresponding hydraulic jacks; the fixed end of the hydraulic jack is arranged on the rolling mill frame, and the extending end of the hydraulic jack is contacted with the lower surface of the upper lifting beam.
2. The rolling mill scurrying cylinder inclined wedge dismounting device according to claim 1, wherein the upper lifting frame consists of an upper upright post, an upper lifting beam and a reinforcing beam; the 2 upper upright posts are perpendicular to the upper lifting beam, and the top parts of the upper upright posts are fixedly connected with the bottom parts of the upper lifting beams; the distance between the 2 upper upright posts is larger than the length of the wedge in the corresponding direction; two ends of the upper lifting beam extend to the outer sides of the upper upright posts, and 2 hydraulic jacks are respectively positioned at two overhanging ends of the upper lifting beam; the stiffening beam is of a vertical plate structure, is arranged at the top of the upper lifting beam, and is arranged along the central axis of the upper lifting beam in a through length mode.
3. The rolling mill scurrying cylinder inclined wedge dismounting device according to claim 1, wherein the lower lifting frame consists of a lower upright post and a lower lifting beam; the 2 lower upright posts are arranged in one-to-one correspondence with the upper upright posts, and the bottoms of the lower upright posts are connected with the tops of the lower lifting beams; the lower upright post and the lower lifting beam are of an integrated structure; the widths of the lower upright post and the lower lifting beam are smaller than the widths of the corresponding side gaps of the wedge and the rolling mill stand.
4. The rolling mill scupper cylinder inclined wedge disassembling device according to claim 3, wherein the width of the lower upright post and the lower lifting beam is 40-50 mm, and the width of the upper upright post and the width of the lower upright post are equal.
5. The rolling mill roll shifting cylinder inclined wedge dismounting device according to claim 1, wherein the connecting piece consists of a connecting plate and a connecting bolt; connecting plates are respectively arranged on two sides of the connecting position of the upper upright post and the lower upright post, and 1 group of connecting bolts are respectively arranged between the connecting plates and the upper upright post and between the connecting plates and the lower upright post.
6. The rolling mill blowby cylinder inclined wedge disassembling apparatus according to claim 5, wherein each set of connecting bolts comprises 2 connecting bolts, and the connecting bolts are high-strength shear bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321669251.XU CN220177853U (en) | 2023-06-28 | 2023-06-28 | Oblique wedge dismounting device for roller shifting cylinder of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321669251.XU CN220177853U (en) | 2023-06-28 | 2023-06-28 | Oblique wedge dismounting device for roller shifting cylinder of rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220177853U true CN220177853U (en) | 2023-12-15 |
Family
ID=89104858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321669251.XU Active CN220177853U (en) | 2023-06-28 | 2023-06-28 | Oblique wedge dismounting device for roller shifting cylinder of rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220177853U (en) |
-
2023
- 2023-06-28 CN CN202321669251.XU patent/CN220177853U/en active Active
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