CN210023257U - Clearance eliminating device for four-high mill - Google Patents
Clearance eliminating device for four-high mill Download PDFInfo
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- CN210023257U CN210023257U CN201920561611.1U CN201920561611U CN210023257U CN 210023257 U CN210023257 U CN 210023257U CN 201920561611 U CN201920561611 U CN 201920561611U CN 210023257 U CN210023257 U CN 210023257U
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- roll assembly
- piston
- rolling mill
- cavity
- piston rod
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- 238000005096 rolling process Methods 0.000 claims abstract description 42
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 239000000725 suspension Substances 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a four-high mill clearance eliminating device, including rolling mill housing, working roll assembly, backing roll assembly, ladder pad and pneumatic cylinder, rolling mill housing fixed mounting is on the ground, ladder pad, backing roll assembly and working roll assembly mount are in the inside of rolling mill housing, the backing roll assembly includes upper backing roll assembly and bottom suspension runner assembly, the pneumatic cylinder is installed in the side lower part of rolling mill housing, the one end of pneumatic cylinder is fixed and rolling mill housing links to each other, the other end of pneumatic cylinder links to each other with the backing roll assembly, in this device, promote the piston rod and antifriction plate to stretch out the bearing frame that withstands the backing roll assembly together through piston chamber oil inlet oil feed, thereby make it all the time with rolling mill housing in close contact with and eliminated the clearance between them to can automatically regulated along with the increase of wearing and tearing stretch out the size of volume, thereby guaranteed the rolling mill rolling stability, the device is automatic, safe and reliable, and can improve the operation rate of the rolling mill, increase the yield and reduce the cost.
Description
Technical Field
The utility model relates to a rolling mill field specifically is four high rolling mill clearance remove device.
Background
The development of iron and steel enterprises plays a very important role in the development of national economy in China. The development of the method is directly related to the development of metallurgical enterprises. Therefore, in recent years, the development of iron and steel enterprises has been one of the more concerned matters in China. The rapid development of the metallurgical industry since the beginning of the 20 th century, especially after the 50 th of the 20 th century, has had a profound impact on humans. Nowadays, the increasingly global competition and merger of the metallurgical industry are promoting the market to have higher and higher performance requirements on metallurgical machinery. Therefore, how to improve productivity, shorten production time, improve yield and quality is a focus of attention from the overall height of the steel production process; after the four-roller mill is operated for a period of time, the housing and the bearing seat of the supporting roller have corresponding abrasion, the abrasion enlarges the clearance between the housing and the bearing seat of the mill, and the supporting roller is in an unstable state (can not keep a fixed working position) if the clearance is not restrained by fixed lateral force in the rolling process. The instability is transmitted to the working roll, so that the working roll is also in an unstable state, the unstable state of the working roll can cause uneven thickness of a rolled piece, a roll bearing is impacted, the normal friction relation between the working roll and a supporting roll is damaged, the roll wear is aggravated, and other adverse effects. Therefore, it is important to maintain the stable position of the backup roll with respect to the work rolls to improve the rolling accuracy and the working conditions of the roll member.
It is therefore necessary to provide a four-high mill gap elimination apparatus to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above object, the utility model provides a following technical scheme: four-high mill clearance remove device, including rolling mill housing, working roll assembly, backing roll assembly, ladder pad and pneumatic cylinder, rolling mill housing fixed mounting is on the ground, ladder pad, backing roll assembly and working roll assembly mount are in the inside of rolling mill housing, the backing roll assembly includes upper support roll assembly and bottom suspension runner assembly, the side lower part at the rolling mill housing is installed to the pneumatic cylinder, the one end of pneumatic cylinder is fixed and rolling mill housing links to each other, the other end and the backing roll assembly of pneumatic cylinder link to each other.
As a preferred technical scheme of the utility model, the hydraulic cylinder comprises a cylinder body, a piston seal, a piston rod and a wear-resisting plate, the cross section of the cylinder body is U-shaped, a cylinder cavity is arranged in the cylinder body, a piston rod cavity is arranged on the left side of the cylinder cavity, a piston cavity is arranged on the other side of the cylinder cavity, the right side of the piston cavity is communicated with an oil inlet of the piston cavity, the bottom of the piston rod cavity is communicated with an oil inlet of the piston rod cavity, the piston is connected in the piston cavity in a sliding manner, the piston rod is fixedly connected at one end of the piston far away from the oil inlet of the piston,
as an optimal technical scheme of the utility model, the inside in piston rod chamber links to each other with the slip end socket is fixed, the piston rod slides and sets up in the slip end socket, it is sealed to be provided with a plurality of piston rods between slip end socket and the piston rod, it is sealed to set up a plurality of pistons between piston chamber and the piston.
As the utility model discloses an optimal technical scheme, the work roll assembly all sets up the inside at the rolling mill housing through the bearing frame with the backing roll assembly, the ladder pad sets up in the inside of rolling mill housing and links to each other with the backing roll assembly.
As the utility model discloses a preferred technical scheme, the piston rod is kept away from the fixed antifriction plate that is provided with of one end of piston chamber oil inlet, and links to each other through the bearing frame of antifriction plate and bottom suspension runner assembly.
Compared with the prior art, the utility model provides a four high mill clearance remove device possesses following beneficial effect:
in the device, the piston rod and the wear-resisting plate are pushed to extend together to abut against a bearing seat assembled by the supporting roll all the time by oil inlet of the piston cavity, so that the piston rod and the wear-resisting plate are always in close contact with a housing of the rolling mill, a gap generated between the piston rod and the housing of the rolling mill after long-time abrasion is eliminated, the extending length of the piston rod can be automatically adjusted along with the increase of abrasion, the rolling stability of the rolling mill is ensured, and the gap eliminating device is automatic, safe and reliable, improves the operation rate of the rolling mill.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the lower half structure of the present invention;
FIG. 3 is an enlarged view of the portion A of the structure of the present invention;
FIG. 4 is a detailed view of the hydraulic cylinder of the present invention;
in the figure: 1. a rolling mill housing; 2. assembling a working roll; 3. assembling supporting rollers; 4. a step pad; 5. a hydraulic cylinder; 51. a cylinder body of the oil cylinder; 52. a piston; 53. sealing the piston; 54. the piston rod is sealed; 55. a piston rod; 56. a wear plate; 57. a cylinder cavity; 58. an oil inlet of the piston cavity; 59. and an oil inlet of the piston rod cavity.
Detailed Description
Example (b): referring to fig. 1-4, the utility model provides a technical scheme: four-high mill clearance remove device, including rolling mill housing 1, working roll assembly 2, backing roll assembly 3, ladder pad 4 and pneumatic cylinder 5, its characterized in that, 1 fixed mounting in ground in rolling mill housing, ladder pad 4, backing roll assembly 3 and working roll assembly 2 install in the inside of rolling mill housing 1, backing roll assembly 3 includes backing roll assembly and bottom suspension runner assembly, the side lower part at rolling mill housing 1 is installed to pneumatic cylinder 5, the one end of pneumatic cylinder 5 is fixed and rolling mill housing 1 links to each other, the other end of pneumatic cylinder 5 links to each other with backing roll assembly 3.
As shown in fig. 4, the hydraulic cylinder 5 includes a cylinder body 51, a piston 52, a piston seal 53, a piston rod seal 54, a piston rod 55 and a wear plate 56, the cross section of the cylinder body 51 is U-shaped, a cylinder cavity 57 is disposed inside the cylinder body 51, a piston rod cavity is disposed on the left side of the cylinder cavity 57, a piston cavity is disposed on the other side of the cylinder cavity 57, the right side of the piston cavity is communicated with a piston cavity oil inlet 58, the bottom of the piston rod cavity is communicated with a piston rod cavity oil inlet 59, the piston 52 is slidably connected inside the piston cavity, a piston rod 55 is fixedly connected to one end of the piston 52 away from the piston cavity oil inlet 58, and the piston rod extends by adding oil into the piston cavity oil inlet 58 or the piston rod cavity oil inlet 59.
In this embodiment, the interior of the piston rod cavity is fixedly connected with the sliding end seat, the piston rod 55 is slidably disposed in the sliding end seat, a plurality of piston rod seals 54 are disposed between the sliding end seat and the piston rod 55, and a plurality of piston seals 53 are disposed between the piston cavity and the piston 52.
In this embodiment, the work roll assembly 2 and the back-up roll assembly 3 are both arranged inside the mill housing 1 through a bearing seat, and the step pad 4 is arranged inside the mill housing 1 and connected with the back-up roll assembly 3.
In this embodiment, a wear plate 56 is fixedly disposed at an end of the piston rod 55 away from an oil inlet 58 of the piston cavity, and is connected to a bearing seat assembled by the wear plate 56 and the lower support roller.
When the rolling mill normally works, the piston 52 of the hydraulic cylinder 5 pushes the piston rod 55 and the wear plate 56 to extend together through the oil inlet 58 of the piston cavity to always prop against a bearing seat assembled by the supporting roll, so that the piston rod and the wear plate are always in close contact with the housing 1 of the rolling mill, the gap generated between the piston rod and the wear plate after long-time wear is eliminated, the extension amount can be automatically adjusted along with the increase of wear, the rolling stability of the rolling mill is ensured, and the gap eliminating device is automatic, safe and reliable, improves the operation rate of the rolling mill, increases the yield and reduces the cost.
The above, only be the concrete implementation of the preferred embodiment of the utility model, but the protection scope of the utility model is not limited thereto, and any technical personnel familiar with this technical field should be covered within the protection scope of the utility model in the technical scope of the utility model discloses, according to the technical scheme of the utility model and the utility model conception equivalence substitution or change.
Claims (5)
1. Four-high mill clearance remove device, including rolling mill housing (1), working roll assembly (2), backing roll assembly (3), ladder pad (4) and pneumatic cylinder (5), its characterized in that, rolling mill housing (1) fixed mounting is on the ground, the inside in rolling mill housing (1) is installed in ladder pad (4), backing roll assembly (3) and working roll assembly (2), backing roll assembly (3) are including upper support roll assembly and lower backing roll assembly, the side lower part in rolling mill housing (1) is installed in pneumatic cylinder (5), the one end of pneumatic cylinder (5) is fixed and rolling mill housing (1) links to each other, the other end of pneumatic cylinder (5) links to each other with backing roll assembly (3).
2. Four high mill gap eliminating device according to claim 1, characterized in that the hydraulic cylinder (5) comprises a cylinder block (51), a piston (52), a piston seal (53), a piston rod seal (54), a piston rod (55) and a wear plate (56), the cross section of the oil cylinder body (51) is U-shaped, an oil cylinder cavity (57) is arranged inside the oil cylinder body (51), the left side of the oil cylinder cavity (57) is a piston rod cavity, the other side of the oil cylinder cavity (57) is a piston cavity, the right side of the piston cavity is communicated with an oil inlet (58) of the piston cavity, the bottom of the piston rod cavity is communicated with an oil inlet (59) of the piston rod cavity, a piston (52) is connected to the interior of the piston cavity in a sliding mode, and a piston rod (55) is fixedly connected to one end, far away from an oil inlet (58) of the piston cavity, of the piston (52).
3. Four-high mill gap elimination device according to claim 2, characterized in that the inside of the piston rod cavity is fixedly connected with a sliding end seat, the piston rod (55) is slidably arranged in the sliding end seat, a plurality of piston rod seals (54) are arranged between the sliding end seat and the piston rod (55), and a plurality of piston seals (53) are arranged between the piston cavity and the piston (52).
4. The four-high mill gap eliminating device according to claim 1, characterized in that: the working roll assembly (2) and the supporting roll assembly (3) are arranged inside the mill housing (1) through bearing seats, and the step pad (4) is arranged inside the mill housing (1) and connected with the supporting roll assembly (3).
5. A gap eliminating device for a four-high rolling mill according to claim 2, characterized in that the end of the piston rod (55) far away from the oil inlet (58) of the piston cavity is fixedly provided with a wear plate (56) and is connected with a bearing seat assembled by a lower supporting roll through the wear plate (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920561611.1U CN210023257U (en) | 2019-04-23 | 2019-04-23 | Clearance eliminating device for four-high mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920561611.1U CN210023257U (en) | 2019-04-23 | 2019-04-23 | Clearance eliminating device for four-high mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210023257U true CN210023257U (en) | 2020-02-07 |
Family
ID=69361117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920561611.1U Active CN210023257U (en) | 2019-04-23 | 2019-04-23 | Clearance eliminating device for four-high mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210023257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714301A (en) * | 2021-08-31 | 2021-11-30 | 马鞍山钢铁股份有限公司 | Balancing device for eliminating deviation of HGC cylinder of rolling mill |
-
2019
- 2019-04-23 CN CN201920561611.1U patent/CN210023257U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714301A (en) * | 2021-08-31 | 2021-11-30 | 马鞍山钢铁股份有限公司 | Balancing device for eliminating deviation of HGC cylinder of rolling mill |
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