CN210676361U - Rail lifting device for roll changing of rolling mill - Google Patents
Rail lifting device for roll changing of rolling mill Download PDFInfo
- Publication number
- CN210676361U CN210676361U CN201921699336.6U CN201921699336U CN210676361U CN 210676361 U CN210676361 U CN 210676361U CN 201921699336 U CN201921699336 U CN 201921699336U CN 210676361 U CN210676361 U CN 210676361U
- Authority
- CN
- China
- Prior art keywords
- bracket
- track
- roll change
- rolling mill
- spiale
- 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.)
- Active
Links
Images
Landscapes
- Types And Forms Of Lifts (AREA)
Abstract
The utility model discloses a track elevating gear for rolling mill roll change belongs to the metallurgical machinery field, and the purpose is simplified roll change flow. The roller changing device comprises a roller changing track, a lifting hydraulic cylinder for lifting the roller changing track and a spindle bracket device, wherein the spindle bracket device comprises a bracket, an upper spindle sleeve holding structure and a lower spindle sleeve holding structure; the bracket sets up in roll change track top along vertical to can dismantle in the rolling mill transmission side and connect in roll change track, go up the structure of hugging closely of spiale axle sleeve and the structure of hugging closely of lower spiale axle sleeve all sets up in the bracket. The utility model discloses, through bracket connection in roll change track, make spiale bracket device follow roll change track and switch between two stations in roll change position and work position, will roll change track and spiale bracket device's function close two-position one, through hydraulic cylinder simultaneous drive roll change track and spiale bracket device, practiced thrift the actuating system who separately drives spiale bracket device and go up and down, simplified driver, and then simplified the roll change flow, still reduced equipment cost.
Description
Technical Field
The utility model belongs to metallurgical machinery hot rolling slab band production field, specific is a track elevating gear that is used for the rolling mill to trade the roller.
Background
On a hot rolling strip steel production line, a track lifting device and a connecting shaft holding device are generally arranged in a hot continuous rolling finishing mill group, are arranged on a rolling mill and are used for matching with a roll changing device to complete the replacement of a working roll. The structure of the rail lifting device is as the patent application with the application number of CN200720016045.3 and the name of the rail lifting device is roll changing lifting rail of the working roll of the rolling mill, the top surface of a piston rod of each hydraulic cylinder is contacted with the bottom surface of the corresponding roll changing rail, the roll changing rails are driven to synchronously move up and down by the hydraulic cylinders, and the good roll changing effect is achieved. At present, a track lifting device and a connecting shaft holding device are independent units, and are driven by an independent power source to independently work without mutual interference. Just because track elevating gear and spiale cohesion device are independent system and drive alone, its operating procedure is various for the roll change process is complicated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a track elevating gear for rolling mill roll change simplifies the roll change flow.
The utility model adopts the technical proposal that: the rail lifting device for roll changing of the rolling mill comprises a roll changing rail and a lifting hydraulic cylinder for lifting the roll changing rail; the connecting shaft bracket device comprises a bracket, an upper connecting shaft sleeve holding structure and a lower connecting shaft sleeve holding structure; the bracket sets up in roll change track top along vertical to can dismantle in the rolling mill transmission side and connect in roll change track, go up the spiale axle sleeve and hold structure tightly and hold the structure tightly and all set up in the bracket with lower spiale axle sleeve.
Further, the bracket comprises a bottom plate and side plates on two sides, and the bottom plate and the side plates on two sides surround to form a U shape with an open upper end.
Furthermore, go up spiale axle sleeve structure of hugging closely includes two blocks of hugging closely and two welts, and two blocks of hugging closely are installed in the curb plate inner wall of bracket respectively, and two welts are installed in the inboard of hugging closely with the block one-to-one of hugging closely.
Further, the inner wall of the bottom plate of the bracket comprises a bottom wall and side walls located on two sides of the bottom wall, the side walls are inclined planes which are formed by inward side plate inner walls and extend to the bottom wall, lining plates are arranged on the side walls on the two sides respectively, and the side walls of the lining plates and the bottom plate form a lower shaft sleeve holding structure.
Furthermore, a sealing structure for sealing the upper end opening of the bracket is arranged on the bracket.
Furthermore, the sealing structure comprises two pull rods and a connecting sleeve positioned between the two pull rods, the two pull rods correspond to the side plates of the bracket one by one, one end of each pull rod is hinged with the corresponding side plate, and the other end of each pull rod is in threaded fit connection with the connecting sleeve; each pull rod is also provided with a nut in threaded fit with the pull rod, and the nut abuts against the end face of the connecting sleeve.
Furthermore, the end part of a piston rod of the lifting hydraulic cylinder is T-shaped, a dovetail groove matched with the end part of the piston rod of the lifting hydraulic cylinder is arranged on the bottom surface of the roller changing track, and the end part of the piston rod of the lifting hydraulic cylinder is arranged in the dovetail groove.
Further, the roller changing track comprises a track main body and an end cover, a first half dovetail groove is formed in the track main body, a second half dovetail groove is formed in the end cover, the end cover is detachably connected to the track main body, and the first half dovetail groove and the second half dovetail groove are oppositely surrounded to form the dovetail groove.
The utility model has the advantages that: the utility model discloses, connect in roll change track through the bracket for spiale bracket device follows roll change track and switches between two stations in roll change position and work position, closes two-position one with roll change track and spiale bracket device's function, drives roll change track and spiale bracket device simultaneously through hydraulic cylinder, has practiced thrift the actuating system who separately drives spiale bracket device and goes up and down, has simplified driver, and then has simplified the roll change flow, has still reduced equipment cost.
The T-shaped end part of the piston rod of the lifting hydraulic cylinder is arranged in the dovetail groove of the roller changing track, so that the roller changing track can be smoothly lowered to a working position, and the use reliability of equipment is ensured.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a left side view of the spindle bracket assembly;
FIG. 4 is a partial schematic view of the roller change track connected to a hydraulic lift cylinder.
In the figure, a roll changing track 1, an inlet track 11, a track main body 111, an end cover 112, an outlet track 12, a smooth plate 13, a tapered sliding plate 14, a spindle bracket device 2, a bracket 21, a bottom plate 211, a bottom wall 2111, a side wall 2112, a side plate 212, an upper spindle sleeve holding structure 22, a holding block 221, a lining plate 222, a lower spindle sleeve holding structure 23, a sealing structure 24, a pull rod 241, a connecting sleeve 242, a nut 243, a lifting hydraulic cylinder 3, a platform 4, a dovetail groove 5, a half dovetail groove one 51, a half dovetail groove two 52 and a working roll 6.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
the rail lifting device for roll changing of the rolling mill, as shown in fig. 1, fig. 2 and fig. 3, comprises a roll changing rail 1 and a lifting hydraulic cylinder 3 for lifting the roll changing rail 1; the connecting shaft bracket device 2 comprises a bracket 21, an upper connecting shaft sleeve holding structure 22 and a lower connecting shaft sleeve holding structure 23; bracket 21 sets up in roll change track 1 top along vertical to can dismantle in the rolling mill transmission side and connect in roll change track 1, go up spiale cover structure 22 of hugging closely and connect spiale cover structure 23 of hugging closely down and all set up in bracket 21.
In the utility model, when the rolling mill normally works, the lifting roll changing track 1 is in a working position, and a space is provided for the movement of the working roll 6 system; when the roller is changed, the lifting hydraulic cylinder 3 lifts the lifting roller changing track 1 and the working roller 6 to a roller changing position, so that the inner track is connected with the outer track, the old roller is pulled out and the new roller is pulled in conveniently, the roller changing device is assisted to complete the replacement of the working roller 6, and at the moment, the upper connecting shaft sleeve holding structure 22 of the connecting shaft bracket device 2 is used for supporting the upper connecting shaft sleeve and accurately positioning the upper connecting shaft sleeve; the lower spiale cover hugging structure 23 is used for supporting the lower spiale cover and accurately positioning the lower spiale cover, so that a new working roll 6 can be quickly and accurately inserted into the spiale cover.
When the upper connecting shaft sleeve is tightly held in the upper connecting shaft sleeve holding structure 22 and the lower connecting shaft sleeve is tightly held in the lower connecting shaft sleeve holding structure 23, the relative position between the upper connecting shaft sleeve and the lower connecting shaft sleeve and the relative position between the upper working roll 6 and the lower working roll 6 are kept consistent.
Connect in roll change track 1 through bracket 21 for spiale bracket device 2 follows roll change track 1 and switches between two stations in roll change position and work station, will roll change track 1 and spiale bracket device 2 function close two one, through hydraulic cylinder 3 simultaneous drive roll change track 1 and spiale bracket device 2, practiced thrift the actuating system who drives spiale bracket device 2 alone and go up and down, simplified the driver program, and then simplified the roll change flow, still reduced equipment cost.
As shown in fig. 2, the roll change track 1 comprises an inlet track 11 and an outlet track 12, and the central lines of the inlet track 11 and the outlet track 12 are parallel to the central line of the frame and the central line of the working roll 6 and are perpendicular to the rolling line direction. In order to facilitate the working rolls 6 to get in and out of the machine frame during replacement, a flat sliding plate 13 with a plane shape is laid on the inlet track 11, and a conical sliding plate 14 with an inverted V-shaped section is laid on the outlet track 12. The inverted V-shaped conical sliding plate 14 prevents the working roll from deviating and separating from the roll changing track in the process of pulling out the rolling mill. In order to facilitate equipment maintenance, four platforms 4 installed on the frame are symmetrically arranged below the roller changing track 1 along the central line of the roller changing track, two of the platforms 4 are arranged on the operation side, the other two platforms 4 are arranged on the transmission side, and four lifting hydraulic cylinders 3 are respectively installed on the corresponding platforms 4.
The bracket 21 may be an arc-shaped plate or the like, and preferably, as shown in fig. 3, the bracket 21 includes a bottom plate 211 and two side plates 212, and is surrounded by the bottom plate 211 and the two side plates 212 to form a U-shape with an open upper end. The U-shaped bracket 21 is simple and compact in structure, not only is beneficial to the upper connecting shaft sleeve holding structure 22 and the lower connecting shaft sleeve holding structure 23 along vertical arrangement, but also is beneficial to reasonably arranging the position of the bracket 21 so as to avoid the problems of interference and the like in the rolling process. This structure, if upper end open-ended U-shaped structure, be convenient for change the spiale from the opening part.
In order to make the stress of the bracket 21 more uniform and to make the structure of the spindle bracket device 2 more stable, a sealing structure 24 for sealing the upper end opening of the bracket 21 is provided.
In order to facilitate the disassembly of the sealing structure 24 to replace the spindle, as shown in fig. 3, the sealing structure 24 includes two pull rods 241 and a connecting sleeve 242 located between the two pull rods 241, the two pull rods 241 correspond to the side plates 212 of the bracket 21 one by one, and one end of each pull rod 241 is hinged to the corresponding side plate 212, and the other end of each pull rod is in threaded fit connection with the connecting sleeve 242; a nut 243 is further provided on each tie rod 241, and the nut 243 is in threaded fit with the tie rod, and the nut 243 abuts against the end surface of the connecting sleeve 242.
The upper spindle sleeve clasping structure 22 comprises two clasping blocks 221 and two lining plates 222, wherein the two clasping blocks 221 are respectively installed on the inner wall of the side plate 212 of the bracket 21, and the two lining plates 222 and the clasping blocks 221 are installed on the inner sides of the clasping blocks 221 in a one-to-one correspondence manner.
The upper connecting shaft sleeve holding structure 22 is simple in structure and low in cost. The clasping block 221 is fastened to the side plate 212 of the bracket 21 by screws or the like, and the backing plate 222 is fastened to the clasping block 221 by screws or the like.
The lower connecting shaft sleeve clasping structure 23 may adopt the same structure as the upper connecting shaft sleeve clasping structure 22, preferably, the inner wall of the bottom plate 211 of the bracket 21 comprises a bottom wall 2111 and side walls 2112 positioned at both sides of the bottom wall 2111, the side walls 2112 are inclined planes which are inward from the inner walls of the side plates 212 and extend to the bottom wall 2111, the side walls 2112 at both sides are respectively provided with a lining plate 222, and the side walls of the lining plate 222 and the bottom plate 211 form the lower connecting shaft sleeve clasping structure 23.
This lower coupling sleeve structure 23 of hugging closely constitutes through the lateral wall of welt 222 and bottom plate 211 lower coupling sleeve structure 23 of hugging closely has practiced thrift and has embraced block 221, and the structure is simpler, and the cost is cheaper.
Because the structure that roll change track 1 and spiale bracket device 2 are constituteed is the unbalance loading structure, the jam easily appears when roll change track 1 descends, in order to avoid the jam appearing when roll change track 1 descends, preferentially, as shown in fig. 4, the piston rod tip of hydraulic cylinder 3 is T shape, the bottom surface of roll change track 1 is provided with dovetail 5 with the piston rod tip adaptation of hydraulic cylinder 3, the piston rod tip of hydraulic cylinder 3 installs in dovetail 5.
According to the structure, a downward pulling force is actively applied to the roll changing track 1 when a rod cavity of the lifting hydraulic cylinder 3 works, so that the roll changing track 1 smoothly descends to a working position.
In order to facilitate the detachment and installation between the hydraulic cylinder 3 and the roll change rail 1 and facilitate the machining and manufacturing, preferably, the roll change rail 1 includes a rail main body 111 and an end cover 112, a first half dovetail groove 51 is provided on the rail main body 111, a second half dovetail groove 52 is provided on the end cover 112, the end cover 112 is fastened to the rail main body 111 through bolts, and the first half dovetail groove 51 and the second half dovetail groove 52 are relatively surrounded to form the dovetail groove 5.
Claims (8)
1. The rail lifting device for roll changing of the rolling mill comprises a roll changing rail (1) and a lifting hydraulic cylinder (3) for lifting the roll changing rail (1); the method is characterized in that: the connecting shaft bracket device (2) comprises a bracket (21), an upper connecting shaft sleeve holding structure (22) and a lower connecting shaft sleeve holding structure (23); bracket (21) are along vertical setting in roll change track (1) top to can dismantle in the rolling mill transmission side and connect in roll change track (1), go up the spiale cover and embrace structure (22) and lower spiale cover and embrace structure (23) and all set up in bracket (21), and go up the spiale cover and embrace structure (22) and lower spiale cover and embrace relative position and the interval of structure (23) and suit with the rolling mill work roll.
2. The rail lifting device for roll change of rolling mill as claimed in claim 1, characterized in that: the bracket (21) comprises a bottom plate (211) and side plates (212) on two sides, and a U shape with an open upper end is formed by the bottom plate (211) and the side plates (212) on two sides in a surrounding mode.
3. The rail lifting device for roll changing of rolling mill of claim 2, wherein: the upper spindle sleeve clasping structure (22) comprises two clasping blocks (221) and two lining plates (222), the two clasping blocks (221) are respectively installed on the inner wall of a side plate (212) of the bracket (21), and the two lining plates (222) and the clasping blocks (221) are installed on the inner side of the clasping blocks (221) in a one-to-one correspondence mode.
4. The rail lifting device for roll changing of rolling mill of claim 2, wherein: the inner wall of bottom plate (211) of bracket (21) includes diapire (2111) and lateral wall (2112) that is located diapire (2111) both sides, lateral wall (2112) are by curb plate (212) inner wall inwards and extend to the inclined plane of diapire (2111), are provided with welt (222) on lateral wall (2112) of both sides respectively to the lateral wall that has welt (222) and bottom plate (211) constitutes the axle sleeve structure (23) of holding tightly down.
5. The rail lifting device for roll changing of rolling mill of claim 2, wherein: a sealing structure (24) for sealing the upper end opening is arranged on the bracket (21).
6. The rail lifting device for roll changing of rolling mill of claim 5, wherein: the sealing structure (24) comprises two pull rods (241) and a connecting sleeve (242) positioned between the two pull rods (241), the two pull rods (241) correspond to the side plates (212) of the bracket (21) one by one, one end of each pull rod is hinged with the corresponding side plate (212), and the other end of each pull rod is in threaded fit connection with the connecting sleeve (242); each pull rod (241) is also provided with a nut (243) in threaded fit with the pull rod, and the nut (243) abuts against the end face of the connecting sleeve (242).
7. The rail elevating device for roll changing of rolling mill as claimed in any one of claims 1 to 6, wherein: the end part of a piston rod of the lifting hydraulic cylinder (3) is T-shaped, a dovetail groove (5) matched with the end part of the piston rod of the lifting hydraulic cylinder (3) is formed in the bottom surface of the roll changing track (1), and the end part of the piston rod of the lifting hydraulic cylinder (3) is installed in the dovetail groove (5).
8. The rail lifting device for roll changing of rolling mills of claim 7 wherein: the roller changing track (1) comprises a track main body (111) and an end cover (112), a first half dovetail groove (51) is arranged on the track main body (111), a second half dovetail groove (52) is arranged on the end cover (112), the end cover (112) is detachably connected to the track main body (111), and the first half dovetail groove (51) and the second half dovetail groove (52) are oppositely surrounded to form the dovetail groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921699336.6U CN210676361U (en) | 2019-10-11 | 2019-10-11 | Rail lifting device for roll changing of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921699336.6U CN210676361U (en) | 2019-10-11 | 2019-10-11 | Rail lifting device for roll changing of rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210676361U true CN210676361U (en) | 2020-06-05 |
Family
ID=70901526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921699336.6U Active CN210676361U (en) | 2019-10-11 | 2019-10-11 | Rail lifting device for roll changing of rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210676361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114988327A (en) * | 2022-06-22 | 2022-09-02 | 首钢智新迁安电磁材料有限公司 | Replacement device and replacement method for roller changing vehicle driving system |
-
2019
- 2019-10-11 CN CN201921699336.6U patent/CN210676361U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114988327A (en) * | 2022-06-22 | 2022-09-02 | 首钢智新迁安电磁材料有限公司 | Replacement device and replacement method for roller changing vehicle driving system |
| CN114988327B (en) * | 2022-06-22 | 2023-06-30 | 首钢智新迁安电磁材料有限公司 | Replacement device and replacement method for roller changing vehicle driving system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201140197Y (en) | Wire rod bar blooming mill apparatus | |
| CN109304795B (en) | T-beam hydraulic sliding model and operation method | |
| CN107419625B (en) | Full-automatic numerical control hydraulic turnout tamping car | |
| CN202129304U (en) | Seven-roll full-hydraulic plate and strip straightening machine | |
| CN101462121A (en) | Wire rod bar blooming mill | |
| CN210676361U (en) | Rail lifting device for roll changing of rolling mill | |
| CN108994084A (en) | Hot rolling line working roll or backing roll Quick roll-changing device and replacing options | |
| CN202037179U (en) | Multifunctional overhaul device of rolling mill | |
| CN109848239B (en) | Heavy-duty die preheating and quick replacing system and method of multidirectional double-acting extrusion hydraulic press | |
| CN102632139A (en) | Quick die changing device for forming press | |
| CA2560583C (en) | Method for the insertion of machine units into a production line | |
| CN102335677A (en) | Quick replacement device and replacement method for stand roller of heavy plate mill | |
| CN112547849A (en) | Operation side frame movable type high-rigidity small section steel in-row straightening machine | |
| CN105414197B (en) | A kind of milling train with backup roll change mechanism | |
| CN100479941C (en) | Rolling mill comprising means for exchanging the rolls | |
| CN106319119A (en) | Automatic replacer of tuyere small sleeve | |
| CN206168954U (en) | Hydraulic push bed for rolling mill | |
| CN202037440U (en) | Maintenance vehicle tool for memorial archway rolling mill | |
| JPH01254304A (en) | Rolling path, particularly, rolling path for molding steel rolling mill | |
| CN109231798B (en) | Automatic paper assisting system and method | |
| CN209682498U (en) | The hydraulic gliding model of T beam | |
| CN201070637Y (en) | Roll change lifting device of rough rolling edger mill | |
| CN203485291U (en) | Stripper machine for concrete elastic support | |
| CN214725209U (en) | Follow-up structure | |
| CN202366954U (en) | Roller changing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |