CN202461380U - Axial rolling device of large-size ring rolling mill - Google Patents
Axial rolling device of large-size ring rolling mill Download PDFInfo
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- CN202461380U CN202461380U CN 201220082235 CN201220082235U CN202461380U CN 202461380 U CN202461380 U CN 202461380U CN 201220082235 CN201220082235 CN 201220082235 CN 201220082235 U CN201220082235 U CN 201220082235U CN 202461380 U CN202461380 U CN 202461380U
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- bearing sleeve
- roller seat
- conical roller
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Abstract
The utility model discloses an axial rolling device of a large-size ring rolling mill. The main body structure of the axial rolling device is composed of a rack, an upper conical roller seat, a lower conical roller seat, an upper conical roller and a lower conical roller and further comprises a movable oil cylinder for providing power, a motor, a reduction box, a main rolling oil cylinder, a balancing oil cylinder, and a conical roller pre-tightening and detaching oil cylinder, wherein the excircles of a front bearing sleeve and a back bearing sleeve of the conical roller are stepped shafts, and the diameter difference of the large diameter excircle and the small diameter excircle is optimally 10mm; a plurality of trough lines parallel to the axial line are engraved on the excircles of the front and back bearing sleeves, the widths of the trough lines are optimally 1.5mm, and the depths of the trough lines are optimally 1mm for facilitate the escape of the sealed air during the assembly process; and holes matched with the front and back bearing sleeves on the conical roller seat are stepped holes, and the diameters of the large diameter inner hole and the small diameter inner hole are equal to the diameters of the corresponding large diameter excircle and the small diameter excircle. The length of the axial line of the small diameter excircle of the bearing sleeve is slightly larger than or equal to a half of the whole matching length, and the length of the axial line of the large diameter inner hole of the conical roller seat is larger than the length of the axial line of the small diameter excircle of the bearing sleeve and is optimally not smaller than 50mm.
Description
Technical field
The utility model relates to a kind of large-scale seamless ring hot-roll forming equipment, i.e. the ring rolls of large-sized numerical control footpath-axially specifically is the axially rolled device of ring rolls of the large-scale footpath that greatly reduces of a kind of bearing sleeve assembly difficulty of boring roller up and down-axially.
Background technology
The large-sized numerical control footpath-axially ring rolls is the special equipment of large-scale seamless ring hot-roll forming, promptly through applying footpath, axial rolling force to heating the back blank, realizes the shaping of wall thickness reduction, enlarged-diameter, cross section profile.Rolling principle is referring to Fig. 1.
The axially rolled device of large-scale footpath-axial ring rolls, rolling oil cylinder by the master provides pressure, through boring roller up and down ring blank axial direction is applied roll-force (referring to Fig. 2).The awl roller is the core part of axially rolled device.
Industries such as wind-powered electricity generation, Aero-Space, nuclear power, boats and ships need the large-scale seamless ring of 6000 ~ 10000mm diameter, and single ring weight can reach about 20 tons.Since the maximization of the ring of processing, the heavy duty of the operation of rolling, variable load, high temperature etc., and the large-sized numerical control footpath-axially each parts of ring rolls are also very big, very heavy.As core part; Single awl roller weight is about 8 tons; The large-sized numerical control footpath of big roll-force is ring rolls single awl roller weight even more than 10 tons axially, therefore the ring rolls of large-scale footpath-axially to awl roller and mating parts thereof easy assembling, ease for maintenance very high requirement has been proposed.
The axially rolled device of large-scale footpath-axial ring rolls, awl roller front and back end needs each to locate to the quadruplet bearing with three.For making things convenient for the installation of these bearings, need be behind awl roller that preceding end bearing is packed into, again at big sleeve of bearing group outside assembling.The assembly that will install bearing and the sleeve then awl roller seat of packing into.Rear end bearing then pack into earlier back sleeve and then the sleeve awl roller seat of packing into.
Because the heavy duty of large-scale footpath-axial ring rolls operation of rolling, variable load, high temperature etc., external diameter and length are all about 1000mm in this awl roller front and back bearings sleeve.Though these quill are matched in clearance with the awl roller seat, because appearance and size is big, cooperate face length; Cause two parts to finish from beginning to touch assembling; The cooperation stroke of bearing sleeve is long, wastes time and energy when also just having caused assembling, dismantles also very difficulty (referring to Fig. 5) during equipment rebuilding.
Summary of the invention
The problem that the utility model exists to prior art; The axially rolled device of large-sized numerical control a kind of novel structure, dependable performance, that assembly difficulty greatly reduces footpath-axial ring rolls is provided; It is characterized in that adopting the mode of ladder axis hole cooperation; Reduce the cooperation stroke when boring the roller bearing sleeve up and down, thereby reduce the time of assembling or dismounting, reduce the difficulty of assembling or dismounting with the assembling of awl roller seat.
The technical scheme that the utility model adopted is: a kind of axially rolled device of large-scale ring rolls; It comprises the awl roller seat and the front and back bearings sleeve that is arranged in the awl roller seat of hollow; It is characterized in that the front and back bearings sleeve with the awl roller seat contact-making surface be arranged to cascaded surface, the awl roller seat on it correspondence shoulder hole is set.
The concrete characteristics of this programme also have, and the big footpath cylindrical on fore bearing sleeve and the rear bearing sleeve cascaded surface and the diameter difference of path cylindrical are 10mm; Between shoulder hole on the awl roller seat and the cascaded surface is the matched in clearance of the 0.01mm order of magnitude.
On the cylindrical of front and back bearings sleeve, all be carved with the line of rabbet joint of several and parallel axes.
Said line of rabbet joint width is 1.5mm, and the degree of depth is 1mm.
The axial length of bearing sleeve path cylindrical is a bit larger tham or is equaled the half the of whole cascaded surface length of fit, and the axial length of the big footpath endoporus of awl roller seat is greater than the axial length of bearing sleeve path cylindrical 50mm at least.
The axially rolled device of this large-scale ring rolls; Agent structure (referring to Fig. 2) by frame, epicone roller seat, down bore roller seat, epicone roller, bore roller down and form, also comprise provide axially rolled device move before and after on the complete machine base the mobile oil cylinder of power, up and down bore motor and reduction box in the rotary power system of roller, provide the epicone roller seat to slide up and down and the master of roll-force rolls oil cylinder and balancing cylinder, awl roller pretension are dismantled oil cylinder (the non-indispensable part of this oil cylinder) etc.Wherein therefore the epicone roller bores used bearing of roller and bearing sleeve appearance and size up and down too with the awl roller is measure-alike down.The cylindrical of the utility model awl roller fore bearing sleeve and rear bearing sleeve is multidiameter, and the difference of the diameter of big footpath cylindrical and path cylindrical is good with 10mm; On the cylindrical of front and back bearings sleeve, all be carved with the line of rabbet joint of several and parallel axes, width is with 1.5mm, and the degree of depth is good with 1mm, so that be closed the escape of air during assembling; The hole of matching with the front and back bearings sleeve on the awl roller seat also all is a shoulder hole, the equal diameters of the diameter of its big footpath endoporus and path endoporus and corresponding big footpath cylindrical and path cylindrical.The axial length of bearing sleeve path cylindrical is a bit larger tham or is equaled the half the of whole length of fit, and the axial length of the big footpath endoporus of awl roller seat is greater than the axial length of bearing sleeve path cylindrical, is good to be not less than 50mm.
The beneficial effect of the utility model is: the structure that the utility model adopted, and can not cause contour size of the unit(s) to become big, can extraly not gain in weight, and also simple in structure, be prone to processing and be prone to realize.The structure that the utility model adopted makes the cooperation stroke when boring the assembling of roller bearing sleeve up and down reduce over half; The cooperation stroke that is about to bearing sleeve reduces to about 500mm about by 1000mm; Significantly reduced the assembling and safeguard the take-down time; Reduce assembly difficulty, had high economic benefit.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.The utility model embodiment is the axially rolled device that national great special D53K-8000 large-sized numerical control footpath-axial ring rolls of being declared is forged in the Jinan casting.Fig. 1 is an axially ring rolls operation principle sketch map of large-sized numerical control footpath.Fig. 2 is the utility model cutaway view.Fig. 3 is epicone roller assembling signal (analysing and observe) figure of the utility model embodiment.Fig. 4 is the enlarged drawing at Fig. 3 epicone roller front end assembling I place.Fig. 5 is the enlarged drawing at assembling II place, Fig. 3 epicone roller rear end.Fig. 6 is the epicone roller front end assembling enlarged drawing that does not adopt the utility model.Among the figure: 1-home roll, 2-core rod, 3-embrace roller, 4-epicone roller, 5-down awl rollers, 6-ring; 7-front end gland, 8-front end bearing group, 9-epicone roller seat, 10-fore bearing sleeve, 11-awl roller positioning sleeve; 12-rear end bearing group, 13-rear bearing sleeve, 14-down awl roller seats, 15-frame, 16-motor; 17-reduction box, 18-oil cylinder moved, 19-balancing cylinder, the 20-main oil cylinder that rolls, 21-pretension dismounting oil cylinder.
The specific embodiment
The agent structure of the utility model (referring to Fig. 2) by frame 15, epicone roller seat 9, down bore roller seat 14, epicone roller 4, bore roller 5 down and form; Also comprise the mobile oil cylinder 18 that provides axially rolled device to move forward and backward power, the motor 16 and the reduction box 17 of boring the roller rotary power up and down is provided, provides the epicone roller seat to slide up and down and the master of roll-force rolls oil cylinder 20 and balancing cylinder 19, and awl roller pretension dismounting oil cylinder 21.Wherein epicone roller 4 is with awl roller 5 is measure-alike down, and used front end bearing group 8 is the same with rear end bearing group 12 models, and it is the same that bearing sleeve removes lubrication hole external structure size, so hereinafter only is assembled into the structure that example (referring to Fig. 3) specifies the utility model with the epicone roller.
Like Fig. 4 and shown in Figure 5, the cylindrical of epicone roller fore bearing sleeve 10 and rear bearing sleeve 13 is made multidiameter, the mating holes on the awl roller seat is made shoulder hole accordingly, total length of fit does not change, and the structural entity strength and stiffness do not change.
For the assembling of fore bearing sleeve, like Fig. 4.During assembling, earlier with front end gland 7 parts such as the grade epicone roller 4 of packing into, again with the front end bearing group 8 epicone roller 4 of packing into.The epicone roller 4 of then fore bearing sleeve 10 being packed into and installing front end bearing group 8.Epicone roller 4 assemblies that will the install fore bearing sleeve 10 more epicone roller seat 9 of packing into; This moment is because fore bearing sleeve 10 cylindricals are multidiameters; The hole that epicone roller seat 9 cooperates with it is a shoulder hole; Though the front end path cylindrical of fore bearing sleeve 10 has got into epicone roller seat 9, with the big footpath endoporus of epicone roller seat 9 gap greater than 5mm is arranged, be very easy to pack into; Cylindrical begins to contact with the big footpath endoporus of epicone roller seat 9 up to the big footpath of bearing sleeve 10; Whole assembling process just gets into the gap assembling process of the 0.01mm order of magnitude; This moment fore bearing sleeve 10 to have got into epicone roller seat 9 over half, that is to say that the assembling of the first half of fore bearing sleeve 10 length directions is very light.
The length dimension of the utility model appropriate design ladder axis hole, when making the big footpath cylindrical of fore bearing sleeve 10 begin to contact with the big footpath endoporus of epicone roller seat 9, the path cylindrical of fore bearing sleeve 10 does not also have to contact with the path endoporus of epicone roller seat 9; Up to the length of fit of the big footpath endoporus of the big footpath cylindrical of fore bearing sleeve 10 and epicone roller seat 9 during greater than the 50mm left and right sides (this moment, bearing sleeve 10 can guarantee concentric locating with epicone roller seat 9); The path cylindrical of fore bearing sleeve 10 just begins to contact with the path endoporus of epicone roller seat 9, gets into the gap assembling process of the 0.01mm order of magnitude.At this moment the big footpath cylindrical of fore bearing sleeve 10 and path cylindrical and epicone roller seat 9 corresponding big footpath endoporus and the path endoporus gap assembling process that just gets into the 0.01mm order of magnitude simultaneously.And this moment is from the fore bearing sleeve 10 not enough half the length of epicone roller seat 9 of packing into fully.The utility model reduces to the cooperation stroke of fore bearing sleeve 10 about 500mm about by 1000mm thus, has significantly reduced assembling and safeguards the take-down time, has reduced assembly difficulty.
For the assembling of rear bearing sleeve, like Fig. 5.During assembling, rear end bearing group 12 is packed into bore roller positioning sleeve 11 earlier.The awl roller positioning sleeve 11 of then rear bearing sleeve 13 being packed into and installing rear end bearing group 12.Awl roller positioning sleeve 11 assemblies that will the install rear bearing sleeve 13 more epicone roller seat 9 of packing into; This moment is because rear bearing sleeve 13 cylindricals are multidiameters; The hole that epicone roller seat 9 cooperates with it is a shoulder hole; Though the path cylindrical of rear bearing sleeve 13 has got into epicone roller seat 9, with the big footpath endoporus of epicone roller seat 9 gap greater than 5mm is arranged, be very easy to pack into; Cylindrical begins to contact with the big footpath endoporus of epicone roller seat 9 up to the big footpath of rear bearing sleeve 13; Begin to get into the gap assembling of the 0.01mm order of magnitude; This moment rear bearing sleeve 13 to have got into epicone roller seat 9 over half, that is to say that the assembling of rear bearing sleeve 13 length direction the first halfs is very light.
The length dimension of the utility model appropriate design ladder axis hole, when making the big footpath endoporus of big footpath cylindrical and the epicone roller seat 9 of rear bearing sleeve 13 begin to contact, the path cylindrical of rear bearing sleeve 13 does not also have to contact with the path endoporus of epicone roller seat 9; Up to the length of fit of the big footpath endoporus of the big footpath cylindrical of rear bearing sleeve 13 and epicone roller seat 9 during greater than the 50mm left and right sides (this moment, bearing sleeve 13 can guarantee concentric locating with epicone roller seat 9); The path cylindrical of rear bearing sleeve 13 just begins to contact with the path endoporus of epicone roller seat 9, gets into the gap assembling of the 0.01mm order of magnitude.At this moment the big footpath cylindrical of rear bearing sleeve 13 and path cylindrical and epicone roller seat 9 corresponding big footpath endoporus and path endoporus just carry out the gap assembling process of the 0.01mm order of magnitude simultaneously.And this moment is from the rear bearing sleeve 13 not enough half the length of epicone roller seat 9 of packing into fully.Thus the utility model with the cooperation stroke of rear bearing sleeve 13 also by reducing to about 1000mm about 500mm, significantly reduced the assembling and safeguard the take-down time, reduced assembly difficulty.
Claims (5)
1. the axially rolled device of a large-scale ring rolls, it comprises the awl roller seat and the front and back bearings sleeve that is arranged in the awl roller seat of hollow, it is characterized in that the front and back bearings sleeve and the contact-making surface of awl roller seat be arranged to cascaded surface, on the awl roller seat with it correspondence shoulder hole is set.
2. the axially rolled device of large-scale ring rolls according to claim 1 is characterized in that big footpath cylindrical and the diameter difference of path cylindrical on fore bearing sleeve and the rear bearing sleeve cascaded surface is 10mm; Between shoulder hole on the awl roller seat and the cascaded surface is the matched in clearance of the 0.01mm order of magnitude.
3. the axially rolled device of large-scale ring rolls according to claim 1 is characterized in that on the cylindrical of front and back bearings sleeve, all being carved with the line of rabbet joint of several and parallel axes.
4. the axially rolled device of large-scale ring rolls according to claim 3 is characterized in that said line of rabbet joint width is 1.5mm, and the degree of depth is 1mm.
5. the axially rolled device of large-scale ring rolls according to claim 2; The axial length that it is characterized in that bearing sleeve path cylindrical is a bit larger tham or is equaled the half the of whole cascaded surface length of fit, and the axial length of the big footpath endoporus of awl roller seat is greater than the axial length of bearing sleeve path cylindrical 50mm at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220082235 CN202461380U (en) | 2012-03-07 | 2012-03-07 | Axial rolling device of large-size ring rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220082235 CN202461380U (en) | 2012-03-07 | 2012-03-07 | Axial rolling device of large-size ring rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202461380U true CN202461380U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220082235 Expired - Fee Related CN202461380U (en) | 2012-03-07 | 2012-03-07 | Axial rolling device of large-size ring rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202461380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538952A (en) * | 2019-09-28 | 2019-12-06 | 贵州航天精工制造有限公司 | Manufacturing method and forming die of corrugated ring for nuclear power reactor internals |
-
2012
- 2012-03-07 CN CN 201220082235 patent/CN202461380U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538952A (en) * | 2019-09-28 | 2019-12-06 | 贵州航天精工制造有限公司 | Manufacturing method and forming die of corrugated ring for nuclear power reactor internals |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20180613 Granted publication date: 20121003 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200613 Granted publication date: 20121003 |
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| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20190307 |
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| CF01 | Termination of patent right due to non-payment of annual fee |