CN201776287U - Roller bending hydraulic cylinder for cold-rolling mill - Google Patents
Roller bending hydraulic cylinder for cold-rolling mill Download PDFInfo
- Publication number
- CN201776287U CN201776287U CN2010205216813U CN201020521681U CN201776287U CN 201776287 U CN201776287 U CN 201776287U CN 2010205216813 U CN2010205216813 U CN 2010205216813U CN 201020521681 U CN201020521681 U CN 201020521681U CN 201776287 U CN201776287 U CN 201776287U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- oil cylinder
- rolling mill
- cold
- hydraulic cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model belongs to an improved roller bending hydraulic cylinder for a cold-rolling mill in a steel rolling mill, and particularly relates to a roller bending hydraulic cylinder for a cold-rolling mill. The roller bending hydraulic cylinder comprises a positive bending cylinder and a negative bending cylinder, wherein the positive bending cylinder is mounted on a bearing block of a lower working roller of the cold-rolling mill, and the negative bending cylinder is mounted on bearing blocks of upper and lower supporting rollers. The outer walls of the positive and negative bending cylinders are provided with copper coatings, the positive and negative bending cylinders are respectively mounted in round holes at two ends of the bearing block of the lower working roller and round holes at two ends of each of the bearing blocks of the upper and lower supporting rollers, a spherical press head with a spherical bottom surface is fittingly mounted in a blind hole arranged at the upper end of a piston rod, the spherical surface of the spherical press head matches with a spherical gasket disposed at the bottom of the blind hole, rod sealing structures are arranged on pore walls of front end caps of the cylinders, and an oil inlet hole and an oil outlet hole of each cylinder are respectively provided with non-leakage hard pipe joints. The roller bending hydraulic cylinder has an automatic aligning function, is fine in accident impact resistance, is safe and reliable, can guarantee stability of continuous rolling, and is fine in sealing property, low in oil leakage and convenient in maintenance.
Description
Technical field
The utility model belongs to the improvement of steel rolling mill's cold-rolling mill roller hydraulic cylinder structure, particularly a kind of cold-rolling mill roller hydraulic cylinder.
Background technology
The working roll of the cold rolling unit of steel rolling mill carries out flexural deformation according to the different needs of template to upper working rolls and lower working rolls, be beneficial to adjust template, avoid the sideslip broken belt, negative curved cylinder is to give an aduncate power to the body of roll of working roll, make template produce the trend of thick middle, just curved cylinder is to give a bandy power to the body of roll of working roll, make template produce the thick trend in both sides, make template controlled, improve the quality of products, the roller cylinder is the visual plant of unit, bears following function: when tension of engagement is rolling, guarantee the uniformity of strip thickness and the glacing flatness of plate face 1.; 2. hydraulic cylinder utilizes servo-drive system control, and response speed can be implemented control to template soon, guarantees the whole process control of template; 3. according to the situation of supplied materials, servo-drive system can be regulated the bending roller force of transmission side and fore side, make the band steel in the operation of rolling of tandem rolling unit, the phenomenon of sideslip does not take place, and guarantees the stability of continuous rolling, but because the original-pack hydraulic cylinder of equipment does not have the automatic capturing function, sealing damages huge and causes block distortion to cylinder body behind the high speed broken belt, Material Strength is not enough simultaneously, and the cylinder base fracture often appears in as-rolled condition, does not also reach the standard of metallurgical machinery with cylinder through checking calculating cylinder body safety coefficient.
Summary of the invention
The purpose of this utility model is to provide a kind of cold-rolling mill roller hydraulic cylinder, has the function of automatic capturing, and anti-accident impact property is good, safe and reliable, can guarantee the stability of continuous rolling, good seal performance, and the leakage of oil amount is few, is convenient to safeguard.
The purpose of this utility model is achieved in that a kind of cold-rolling mill roller hydraulic cylinder, be included in and just curved cylinder be installed and on the milling train bottom working roll bearing block last, negative curved cylinder is installed on the lower support roll bearing seat, the oil cylinder outer wall just is being provided with copper coating, negative curved cylinder is installed in bottom working roll bearing block and last respectively, in the circular hole at lower support roll bearing seat two ends, in the blind hole that the piston rod upper end is provided with, cooperate the sphere pressure head that the pressure head bottom surface is a sphere is installed, the sphere of sphere pressure head matches with the ball ring that the blind hole bottom is provided with, on oil cylinder drive end bearing bracket and the hole wall that piston rod cooperates the rod seal structure is being set, in advancing of oil cylinder, be provided with respectively on the oil outlet and do not having the hard pipe joint of leakage.
Owing on the oil cylinder outer wall of positive and negative curved cylinder, copper coating is being set, in the circular hole at the bearing block two ends of packing into, prevent cylinder barrel high pressure dilatancy, dismounting is convenient in the copper facing of oil cylinder outer wall.At the end of hydraulic cylinder piston rod assembling sphere pressure head, the pressure head bottom surface is a sphere, and under the state of band steel broken belt or shakiness, the trace that can play automatic capturing tilts, thereby guarantees that piston rod packing is not destroyed, and guarantees the online stability of hydraulic cylinder; Cylinder body adopts no blow-by tube sealing to be connected with the hydraulic tube junction, guarantees to connect reliability and durability nothing and leaks.Therefore, the utlity model has the function of automatic capturing, anti-accident impact property is good, safe and reliable, has guaranteed the stability of continuous rolling, good seal performance, and the leakage of oil amount is few, is convenient to safeguard.
Description of drawings
The utility model will be further described below in conjunction with accompanying drawing,
Fig. 1 is the utility model assembly structure schematic diagram;
Fig. 2 is just curved cylinder sectional structure schematic diagram;
Fig. 3 is negative curved cylinder sectional structure schematic diagram;
Fig. 4 is piston rod pressure head and sealed structural representation;
Fig. 5 is a hydraulic cylinder pipe joint sectional structure schematic diagram.
The specific embodiment
A kind of cold-rolling mill roller hydraulic cylinder, as Fig. 1, Fig. 2, shown in Figure 3, be included in and just curved cylinder 4 be installed and on the milling train bottom working roll bearing block 1 last, lower support roll bearing seat 2, negative curved cylinder 3 is installed on 1, oil cylinder 5 outer walls just are being provided with copper coating, negative curved cylinder 4,3 are installed in bottom working roll bearing block 1 and last respectively, lower support roll bearing seat 2, in the circular hole at 1 two ends, in the blind hole that piston rod 8 upper ends are provided with, cooperate the sphere pressure head 9 that the pressure head bottom surface is a sphere is installed, the sphere of sphere pressure head 9 matches with the ball ring 13 that the blind hole bottom is provided with, on oil cylinder drive end bearing bracket 7 and the hole wall that piston rod 8 cooperates rod seal structure 11 is being set, in advancing of oil cylinder 5, be provided with respectively on the oil outlet and do not having the hard pipe joint 12 of leakage.As shown in Figure 4, on the mating surface that oil cylinder drive end bearing bracket 7 and oil cylinder 5 cylinder barrel end faces are rectangular in shape, annular groove is being set respectively, O RunddichtringO 21 is being installed respectively in annular groove.As Fig. 2, shown in Figure 3, the uniform screw that is being provided with on the adpting flange of oil cylinder 5, with drive end bearing bracket 7 that oil cylinder 5 adpting flanges match on be provided with and the corresponding bolt hole of screw, with bearing block circular hole end face that oil cylinder 5 adpting flanges match on the screw corresponding at interval with the screw of oil cylinder 5 adpting flanges is being set, wherein bolt 10 is by corresponding at interval screw, drive end bearing bracket 7 and oil cylinder 5 are packed in the circular hole of bearing block, and construction bolt 6 interfixes drive end bearing bracket 7 and oil cylinder 5 adpting flanges in remaining screw of oil cylinder 5 adpting flanges.Drive end bearing bracket 7 is complete by bolt 6 assemblings with oil cylinder 5, utilizes bolt 10 by the corresponding at interval screw bearing block of packing into again.During dismounting oil cylinder 5, pull down bolt 6,10, in the bolt hole of bolt 6, change stay bolt and can dismantle oil cylinder 5 easily.As shown in Figure 4, rod seal structure 11 is on drive end bearing bracket 7 and hole wall that piston rod 8 cooperates, Z type dust ring 17, low pressure U type circle 18, fairlead 19 is installed respectively in the annular groove that sets gradually from outside to inside and the coaxial high press seal 20 of pressure release function is arranged.On the axle journal on sphere pressure head 9 tops, cooperate polyurethane sealing shroud 14 is installed, back-up ring 15 is installed in the annular groove of sealing shroud 14, sphere pressure head 9 is fixed in the blind hole of piston rod 8 ends by being installed in the jump ring 16 that matches with back-up ring 15 in the groove of blind hole upper end, piston rod 8 end.As shown in Figure 5, the structure of do not have leaking hard pipe joint 12 is for being connected the hard tube 24 of oil cylinder 5 on the hydraulic fluid port by external screw thread, its end is connecting the cone sealing pipe head 22 with awl seal face that stainless steel constitutes by internal thread, its awl sealed end matches into and out of the taper surface in the hydraulic fluid port with oil cylinder 5, and O RunddichtringO 23 is installed in the annular groove that is provided with on the outer wall of cone sealing pipe head 22.
Claims (6)
1. cold-rolling mill roller hydraulic cylinder, be included in and just curved cylinder (4) be installed and on the milling train bottom working roll bearing block (1) last, lower support roll bearing seat (2), negative curved cylinder (3) is installed (1), it is characterized in that: oil cylinder (5) outer wall just is being provided with copper coating, negative curved cylinder (4), (3) be installed in bottom working roll bearing block (1) and last respectively, lower support roll bearing seat (2), (1) in the circular hole at two ends, in the blind hole that piston rod (8) upper end is provided with, cooperate the sphere pressure head (9) that the pressure head bottom surface is a sphere is installed, the sphere of sphere pressure head (9) matches with the ball ring (13) that the blind hole bottom is provided with, on oil cylinder drive end bearing bracket (7) and the hole wall that piston rod (8) cooperates rod seal structure (11) is being set, in advancing of oil cylinder (5), be provided with respectively on the oil outlet and do not having the hard pipe joint (12) of leakage.
2. cold-rolling mill roller hydraulic cylinder according to claim 1, it is characterized in that: rod seal structure (11) is installed with Z type dust ring (17), low pressure U type circle (18), fairlead (19) respectively and the coaxial high press seal of pressure release function (20) is arranged on drive end bearing bracket (7) and hole wall that piston rod (8) cooperates in the annular groove that sets gradually from outside to inside.
3. cold-rolling mill roller hydraulic cylinder according to claim 1, it is characterized in that: the structure of do not have leaking hard pipe joint (12) is for being connected the hard tube (24) of oil cylinder (5) on the hydraulic fluid port by external screw thread, its end is connecting the cone sealing pipe head (22) with awl seal face that stainless steel constitutes by internal thread, its awl sealed end matches into and out of the taper block face in the hydraulic fluid port with oil cylinder (5), and O RunddichtringO (23) is installed in the annular groove that is provided with on the outer wall of cone sealing pipe head (22).
4. cold-rolling mill roller hydraulic cylinder according to claim 1 is characterized in that: on the mating surface that oil cylinder drive end bearing bracket (7) and oil cylinder (5) cylinder barrel end face are rectangular in shape annular groove is being set respectively, O RunddichtringO (21) is installed respectively in annular groove.
5. cold-rolling mill roller hydraulic cylinder according to claim 1, it is characterized in that: the uniform screw that is being provided with on the adpting flange of oil cylinder (5), with drive end bearing bracket (7) that oil cylinder (5) adpting flange matches on be provided with and the corresponding bolt hole of screw, with bearing block circular hole end face that oil cylinder (5) adpting flange matches on the screw corresponding at interval with the screw of oil cylinder (5) adpting flange is being set, wherein bolt (10) is by corresponding at interval screw, drive end bearing bracket (7) and oil cylinder (5) are packed in the circular hole of bearing block, and construction bolt (6) interfixes drive end bearing bracket (7) and oil cylinder (5) adpting flange in remaining screw of oil cylinder (5) adpting flange.
6. cold-rolling mill roller hydraulic cylinder according to claim 1, it is characterized in that: on the axle journal on sphere pressure head (9) top, cooperate polyurethane sealing shroud (14) is installed, back-up ring (15) is installed in the annular groove of sealing shroud (14), sphere pressure head (9) is fixed in the blind hole of piston rod (8) end by being installed in the jump ring (16) that matches with back-up ring (15) in the groove of blind hole upper end, piston rod (8) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205216813U CN201776287U (en) | 2010-09-08 | 2010-09-08 | Roller bending hydraulic cylinder for cold-rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205216813U CN201776287U (en) | 2010-09-08 | 2010-09-08 | Roller bending hydraulic cylinder for cold-rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201776287U true CN201776287U (en) | 2011-03-30 |
Family
ID=43789520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205216813U Expired - Fee Related CN201776287U (en) | 2010-09-08 | 2010-09-08 | Roller bending hydraulic cylinder for cold-rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201776287U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438046A (en) * | 2013-08-28 | 2013-12-11 | 无锡市长江液压缸厂 | Energy-saving bending roller cylinder block |
| CN104785523A (en) * | 2015-04-01 | 2015-07-22 | 中冶陕压重工设备有限公司 | Reversible mill working roller bending device |
| CN105240344A (en) * | 2015-10-28 | 2016-01-13 | 无锡阳工机械制造有限公司 | Oil cylinder cover falling preventing structure |
| CN105240345A (en) * | 2015-10-28 | 2016-01-13 | 无锡阳工机械制造有限公司 | Structure for preventing looseness of oil cylinder cover through spring tensioning |
| CN111043098A (en) * | 2019-11-29 | 2020-04-21 | 张家港宏昌钢板有限公司 | End cover structure for balance oil cylinder of roughing mill |
| CN112692071A (en) * | 2020-12-11 | 2021-04-23 | 陕西龙门钢铁有限责任公司 | Lifting device for replacing working roll of strip steel four-high mill |
-
2010
- 2010-09-08 CN CN2010205216813U patent/CN201776287U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438046A (en) * | 2013-08-28 | 2013-12-11 | 无锡市长江液压缸厂 | Energy-saving bending roller cylinder block |
| CN104785523A (en) * | 2015-04-01 | 2015-07-22 | 中冶陕压重工设备有限公司 | Reversible mill working roller bending device |
| CN105240344A (en) * | 2015-10-28 | 2016-01-13 | 无锡阳工机械制造有限公司 | Oil cylinder cover falling preventing structure |
| CN105240345A (en) * | 2015-10-28 | 2016-01-13 | 无锡阳工机械制造有限公司 | Structure for preventing looseness of oil cylinder cover through spring tensioning |
| CN111043098A (en) * | 2019-11-29 | 2020-04-21 | 张家港宏昌钢板有限公司 | End cover structure for balance oil cylinder of roughing mill |
| CN112692071A (en) * | 2020-12-11 | 2021-04-23 | 陕西龙门钢铁有限责任公司 | Lifting device for replacing working roll of strip steel four-high mill |
| CN112692071B (en) * | 2020-12-11 | 2023-10-24 | 陕西龙门钢铁有限责任公司 | Lifting device for replacing working rolls of strip steel four-high mill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201776287U (en) | Roller bending hydraulic cylinder for cold-rolling mill | |
| CN202607202U (en) | Appliance for assembly and disassembly of oil film bearing | |
| CN205887661U (en) | Automatic backing roll balancing unit who rectifies | |
| CN203003104U (en) | Continuous casting machine, fan-shaped section thereof and assembly system of fans-shaped section sectioning roller | |
| CN100402166C (en) | Leveling machine | |
| CN202461114U (en) | Adaptive roller shifting cylinder connecting device | |
| CN202893824U (en) | Safety device of rolling mill mechanism | |
| CN202070553U (en) | Driving-and-driven transmission combined type horizontal lower roller group | |
| CN203162397U (en) | Joint oil pipe | |
| CN200948466Y (en) | Roller frame of the constant reducing mill which has three rollers | |
| CN202516843U (en) | Connecting device between core bar and core rod of two-roller Pilger rolling mill | |
| CN201739505U (en) | Oil leakage prevention device for roller bearing box supported by finishing machine | |
| CN103062546A (en) | Joint oil pipe | |
| CN203356205U (en) | Strip steel coiling assisting hanging-type five-roller tensioning device | |
| CN203124430U (en) | Single-roll deviation correcting device with fixed hinged points | |
| CN205110362U (en) | Rolling mill screw -down device's connection joint | |
| CN206184949U (en) | Working roll and backing roll coupling device in straightening machine | |
| CN206653331U (en) | A kind of device for changing pre- finish rolling pressure roller device sealing | |
| CN206046661U (en) | A kind of eccentric bushing of oil circuit direct-furnish | |
| CN203591999U (en) | Bush type working roll balance cylinder block | |
| CN206360976U (en) | Novel adjustable pressing plate | |
| CN102873100B (en) | Three-roller full-floating mandrel continuous pipe rolling mill and rolling process thereof | |
| CN205324671U (en) | General grooved roll way of two cold sections of circle square base conticaster | |
| CN210623351U (en) | Screw-down nut | |
| CN205128606U (en) | Novel cold rolling mill device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20120908 |