CN109365532A - A kind of internal drive steel pipe three-roll sizing mill rack - Google Patents
A kind of internal drive steel pipe three-roll sizing mill rack Download PDFInfo
- Publication number
- CN109365532A CN109365532A CN201811337317.9A CN201811337317A CN109365532A CN 109365532 A CN109365532 A CN 109365532A CN 201811337317 A CN201811337317 A CN 201811337317A CN 109365532 A CN109365532 A CN 109365532A
- Authority
- CN
- China
- Prior art keywords
- roll
- shaft
- steel pipe
- driving shaft
- driven shaft
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 25
- 238000004513 sizing Methods 0.000 title claims abstract description 25
- 239000010959 steel Substances 0.000 title claims abstract description 25
- 238000002791 soaking Methods 0.000 claims abstract description 4
- 210000004907 gland Anatomy 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 13
- 230000008859 change Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
- B21B13/12—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process axes being arranged in different planes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/06—Rolling hollow basic material, e.g. Assel mills
- B21B19/10—Finishing, e.g. smoothing, sizing, reeling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a kind of internal drive steel pipe three-roll sizing mill racks, including roll and roll shaft, roll includes the first roll for being mutually 120 ° of settings, second roll and 3rd roll, roll shaft includes driving shaft, first driven shaft and second driven shaft, first roll, collars is provided in second roll and 3rd roll, the outside of three collars is equipped with roll spline housing by interference fit soaking, the outside of roll spline housing is connect with roll shaft, respectively by first roll and first driven shaft, second roll and second driven shaft and 3rd roll and driving shaft are correspondingly connected with together.The quick-replaceable of roll can be achieved in the present invention, and when rack roll change avoids the complicated processes of hot-mounting process, shortens roll changing time, improve the service efficiency of rack.
Description
Technical field
The invention belongs to sizing mill technical fields, and in particular to a kind of internal drive steel pipe three-roll sizing mill rack.
Background technique
Sizing mill is that pipe-mill is rolled out to the hollow forging come to obtain higher through fixed diameter rolling after being reheated by stepping furnace
The outer dimension of precision.The sizing mill rack of present seamless steel tube production chain is (preceding using three roller driven separatelies except small part unit
Phase fixed investment is huge, requires motor drive characteristic and control high) outside, most of unit uses machine frame inside circle-arc tooth
The rack for taking turns the kind of drive, being limited due to by internal structure complexity, the collars of these racks and the connection type of roll shaft
It is substantially connected using flat key transition fit and without two kinds of connection of key interference fit.
Flat key connection due to be transition fit, rack after a period of use, between collars and roll shaft gap increasing, cause
Collars bounce, easily there is " cyan line " defect in steel pipe when production, influences steel tube surface quality, simultaneously because be provided on collars compared with
Deep flat key keyway, collars thickness is reduced at keyway, in addition since the stress at keyway is concentrated, is easy to appear roller in use process
Ring roll breakage phenomenon, will affect production, cause the waste of collars.No key interference fit is since to be interference fitted, collars is in assembly
Using hot charging, complex procedures, process period is long, simultaneously because using hot-mounting process, the entire assembly period of rack is (including old
The equipment adjustment of the disassembly of collars, the assembly of new collars and rack transmission parts) it is extended, due to sizing mill (reducing mill)
Action character of the rack in steel pipe's production, sizing mill (stretch reducing machine) rack such as cannot achieve fast roll changing, unless investment is increased,
Increase rack quantity, otherwise by the serious implementation for restricting production plan.In consideration of it, it is necessary to make to traditional sizing mill rack
It improves.
Summary of the invention
To solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of quick-replaceable of achievable roll, machines
The complicated processes that hot-mounting process is avoided when frame roll change, shorten roll changing time, and the inside for improving the service efficiency of rack passes
Dynamic steel pipe three-roll sizing mill rack.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of internal drive steel pipe three-roll sizing mill rack, including roll and roll shaft, roll include be mutually 120 ° of settings first
Roll, second roll and 3rd roll, roll shaft include driving shaft, first driven shaft and second driven shaft, and first roll, second are rolled
Collars is provided on roller and 3rd roll, the outside of three collars is equipped with roll spline housing, roll by interference fit soaking
The outside of spline housing is connect with roll shaft, with respectively by first roll and first driven shaft, second roll and second driven shaft and
3rd roll and driving shaft are correspondingly connected with together, three roll spline housings and corresponding driving shaft, first driven shaft and second
The junction of driven shaft includes left connection part, right connection part and intermediate linkage section, and left connection part and right connection part are all made of circle
Cylinder mating connection mode, intermediate linkage section use spline connection type.
Preferably, pass through circular arc between aforementioned driving shaft and first driven shaft and between driving shaft and second driven shaft
Bevel gear is connected.
More preferably, the revolving speed of both of the aforesaid circular-arc bevel gear is identical, and the revolving speed of three rolls is consistent.
It is highly preferred that running through inside aforementioned driving shaft has pull rod, and the drive input of driving shaft is provided with to fixation
The locking pull-rod nut of pull rod, the other end of driving shaft are disposed with driving shaft gland and driving shaft nut from the inside to the outside, lock
Play can be eliminated by straining at stem nut.
It is further preferred that being provided with the first lock washer between aforementioned pull rod and locking pull-rod nut, reliably prevented
Pine.
Specifically, the outer end of aforementioned first driven shaft and second driven shaft is locked with stud, stud it is outer
End is provided with cover board, and stud carries out axial restraint, can eliminate roll axial float and be not necessarily to unpack, easy to operate.
Preferably, the second lock washer is provided between aforementioned first driven shaft and second driven shaft and stud, into
Row is reliable locking.
More preferably, the two sides of aforementioned roll spline housing and collars junction are provided with positioning sleeve.
The invention has the beneficial effects that: internal drive steel pipe three-roll sizing mill rack construction of the invention is simple, inside
On the steel pipe three-roll sizing mill of portion's Circular profile gearing using spline connection roll collars and roll shaft, it can be achieved that roll quickly more
It changes, when rack roll change avoids the complicated processes of hot-mounting process, shortens roll changing time, improves the service efficiency of rack；Benefit
With the studs of the pull rod of driving shaft and two driven shafts, the axial restraint of roll can be reinforced and facilitate adjustment, eliminate roller
The circular runout of ring and axial float ensure that the surface quality of steel pipe；By lock washer carry out it is locking in the way of simply may be used
It leans on, can avoid in use process because of roll play bring surface defect；It is the assembly of rack, adjustment, easy to maintain, reduce dimension
Repair the working strength and workload of worker.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
The meaning of appended drawing reference in figure: 1, first roll, 2, second roll, 3,3rd roll, 4, driving shaft, 5, first from
Moving axis, 6, second driven shaft, 7, roll spline housing, 8, pull rod, 9, locking pull-rod nut, the 10, first lock washer, 11, double end
Bolt, 12, cover board, the 13, second lock washer.
Specific embodiment
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, a kind of internal drive steel pipe three-roll sizing mill rack of the invention, including roll and roll shaft, roll packet
First roll 1, second roll 2 and the 3rd roll 3 for being mutually 120 ° of settings are included, roll shaft includes driving shaft 4,5 and of first driven shaft
Second driven shaft 6.
Collars is provided in first roll 1, second roll 2 and 3rd roll 3, the outside of three collars is matched by interference
It closes soaking and roll spline housing 7 is housed, the outside of roll spline housing 7 is connect with roll shaft, with respectively that first roll 1 and first is driven
Axis 5, second roll 2 and second driven shaft 6 and 3rd roll 3 and driving shaft 4 are correspondingly connected with together.Driving shaft 4 and first
It is connected by circular-arc bevel gear between driven shaft 5 and between driving shaft 4 and second driven shaft 6, reliable transmission, the power of transmission
Square is big, and the revolving speed of two circular-arc bevel gears is identical, and the revolving speed of three rolls is consistent.
Three roll spline housings 7 include with the junction of corresponding driving shaft 4, first driven shaft 5 and second driven shaft 6
Left connection part, right connection part and intermediate linkage section, left connection part and right connection part are all made of cylindrical surface mating connection mode, this is matched
It closes and selects reasonable fit tolerance, not only guaranteed the concentricity of collars and roll shaft, but also facilitate the assembly and disassembly of roll, intermediate linkage section uses
Spline connection type, because the advantages of spline, while can also reduce or even prevent the generation of collars fracture, roll spline housing 7
Positioning sleeve is provided with the two sides of collars junction.S6(r6 is selected in collars and the cooperation of roll spline housing 7)/H7, transmitting rolling
Torque is reliable, and g6/H7 is selected in the two sections of cylindrical surface cooperations of roll spline housing 7 and roll shaft, is convenient to mount and dismount, guarantees that collars is jumped without diameter, roll
The spline of roller spline housing 7 and roll shaft selects reasonable spline modulus, guarantees the rolling torsion of crimping and transfer processes requirement.
Running through inside driving shaft 4 has pull rod 8, and the drive input of driving shaft 4 is provided with the locking to steady brace 8
Pull-rod nut 9, the other end of driving shaft 4 are disposed with 4 nut of 4 gland of driving shaft and driving shaft from the inside to the outside, lock pull rod
Nut 9 can eliminate play.It is provided with the first lock washer 10 between pull rod 8 and locking pull-rod nut 9, is carried out reliable locking.
The outer end of first driven shaft 5 and second driven shaft 6 is locked with stud 11, the outer end setting of stud 11
There is cover board 12, stud 11 carries out axial restraint, can eliminate roll axial float and be not necessarily to unpack, easy to operate.First is driven
It is provided with the second lock washer 13 between axis 5 and second driven shaft 6 and stud 11, carries out reliable locking.
Internal drive steel pipe three-roll sizing mill rack construction of the invention is simple, in the steel pipe three of internal Circular profile gearing
Using spline connection roll collars and roll shaft, it can be achieved that the quick-replaceable of roll, when rack roll change avoid heat on roller sizing mill
The complicated processes for filling technique, shorten roll changing time, improve the service efficiency of rack；Utilize the pull rod 8 of driving shaft 4 and two
The studs of driven shaft can reinforce the axial restraint of roll and facilitate adjustment, and the circular runout for eliminating collars is altered with axial
It is dynamic, it ensure that the surface quality of steel pipe；By lock washer carry out it is locking in the way of it is simple and reliable, can avoid in use process because
Roll play bring surface defect；It is the assembly of rack, adjustment, easy to maintain, reduce the working strength and work of service worker
It measures.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation
Technical solution is fallen within the scope of protection of the present invention.
Claims (8)
1. a kind of internal drive steel pipe three-roll sizing mill rack, including roll and roll shaft, which is characterized in that the roll includes mutual
At 120 ° be arranged first roll, second roll and 3rd roll, the roll shaft include driving shaft, first driven shaft and second from
Moving axis is provided with collars in the first roll, second roll and 3rd roll, passes through interference on the outside of three collars
Cooperate soaking that roll spline housing is housed, the outside of the roll spline housing is connect with roll shaft, respectively by first roll and first
Driven shaft, second roll and second driven shaft and 3rd roll and driving shaft are correspondingly connected with together, three roll flowers
Key set with the junction of corresponding driving shaft, first driven shaft and second driven shaft include left connection part, right connection part and in
Between linkage section, the left connection part and right connection part be all made of cylindrical surface mating connection mode, and the intermediate linkage section is using flower
Key connection mode.
2. a kind of internal drive steel pipe three-roll sizing mill rack according to claim 1, which is characterized in that the driving shaft
It is connected by circular-arc bevel gear between first driven shaft and between driving shaft and second driven shaft.
3. a kind of internal drive steel pipe three-roll sizing mill rack according to claim 2, which is characterized in that two circles
The revolving speed of arc bevel gear is identical.
4. a kind of internal drive steel pipe three-roll sizing mill rack according to claim 1, which is characterized in that the driving shaft
Inside, which is run through, pull rod, and the drive input of driving shaft is provided with the locking pull-rod nut to steady brace, driving shaft
The other end is disposed with driving shaft gland and driving shaft nut from the inside to the outside.
5. a kind of internal drive steel pipe three-roll sizing mill rack according to claim 4, which is characterized in that the pull rod and
The first lock washer is provided between locking pull-rod nut.
6. a kind of internal drive steel pipe three-roll sizing mill rack according to claim 1, which is characterized in that described first from
The outer end of moving axis and second driven shaft is locked with stud, and the outer end of the stud is provided with cover board.
7. a kind of internal drive steel pipe three-roll sizing mill rack according to claim 1, which is characterized in that described first from
The second lock washer is provided between moving axis and second driven shaft and stud.
8. a kind of internal drive steel pipe three-roll sizing mill rack according to claim 1, which is characterized in that the roll flower
Key set and the two sides of collars junction are provided with positioning sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811337317.9A CN109365532A (en) | 2018-11-12 | 2018-11-12 | A kind of internal drive steel pipe three-roll sizing mill rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811337317.9A CN109365532A (en) | 2018-11-12 | 2018-11-12 | A kind of internal drive steel pipe three-roll sizing mill rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109365532A true CN109365532A (en) | 2019-02-22 |
Family
ID=65383952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811337317.9A Pending CN109365532A (en) | 2018-11-12 | 2018-11-12 | A kind of internal drive steel pipe three-roll sizing mill rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109365532A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759448A (en) * | 2019-02-25 | 2019-05-17 | 临沂金正阳管业有限公司 | A kind of compound heading for seamless steel pipe sizing |
| CN111420993A (en) * | 2020-04-07 | 2020-07-17 | 浙江巨龙钢业有限公司 | High-precision seamless steel tube cold rolling equipment and machining method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4094179A (en) * | 1977-04-19 | 1978-06-13 | Koyo Seiko Company Limited | Driving device for high speed rolling mills and the like |
| CN1270086A (en) * | 1999-01-17 | 2000-10-18 | 张少渊 | Adjustable three-roller (120-deg Y-type) rolling mill with single input drive axle |
| CN2593920Y (en) * | 2003-01-21 | 2003-12-24 | 中国冶金建设集团包头钢铁设计研究总院 | Three-roller diagonal rolling pipe mill |
| DE10305039A1 (en) * | 2002-09-30 | 2004-04-08 | Kocks Technik Gmbh & Co | Rolling mill stand for rolling rod- or pipe-like material comprises a roller held in an axial position on a shaft by sleeve elements lying on the roller |
| CN2801310Y (en) * | 2005-05-26 | 2006-08-02 | 佛山市顺德区冠邦科技有限公司 | Roller arrangement of cold reducing mill and its driving mechanism |
| WO2006131035A1 (en) * | 2005-06-10 | 2006-12-14 | Shao Yuan Zhang | Adjustable three-roller y-type rolling mill with single input drive axle |
| CN101412105A (en) * | 2008-11-28 | 2009-04-22 | 北京工业大学 | Method for producing wear-resistant composite roller |
| CN204672692U (en) * | 2015-04-07 | 2015-09-30 | 冯宗茂 | A kind of milling train |
| CN106734214A (en) * | 2017-03-13 | 2017-05-31 | 太原科技大学 | A kind of composite (back-up) roll for rolling wave type ripple composite plate |
| CN209238686U (en) * | 2018-11-12 | 2019-08-13 | 靖江特殊钢有限公司 | A kind of internal drive steel pipe three-roll sizing mill rack |
-
2018
- 2018-11-12 CN CN201811337317.9A patent/CN109365532A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4094179A (en) * | 1977-04-19 | 1978-06-13 | Koyo Seiko Company Limited | Driving device for high speed rolling mills and the like |
| CN1270086A (en) * | 1999-01-17 | 2000-10-18 | 张少渊 | Adjustable three-roller (120-deg Y-type) rolling mill with single input drive axle |
| DE10305039A1 (en) * | 2002-09-30 | 2004-04-08 | Kocks Technik Gmbh & Co | Rolling mill stand for rolling rod- or pipe-like material comprises a roller held in an axial position on a shaft by sleeve elements lying on the roller |
| CN2593920Y (en) * | 2003-01-21 | 2003-12-24 | 中国冶金建设集团包头钢铁设计研究总院 | Three-roller diagonal rolling pipe mill |
| CN2801310Y (en) * | 2005-05-26 | 2006-08-02 | 佛山市顺德区冠邦科技有限公司 | Roller arrangement of cold reducing mill and its driving mechanism |
| WO2006131035A1 (en) * | 2005-06-10 | 2006-12-14 | Shao Yuan Zhang | Adjustable three-roller y-type rolling mill with single input drive axle |
| CN101412105A (en) * | 2008-11-28 | 2009-04-22 | 北京工业大学 | Method for producing wear-resistant composite roller |
| CN204672692U (en) * | 2015-04-07 | 2015-09-30 | 冯宗茂 | A kind of milling train |
| CN106734214A (en) * | 2017-03-13 | 2017-05-31 | 太原科技大学 | A kind of composite (back-up) roll for rolling wave type ripple composite plate |
| CN209238686U (en) * | 2018-11-12 | 2019-08-13 | 靖江特殊钢有限公司 | A kind of internal drive steel pipe three-roll sizing mill rack |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759448A (en) * | 2019-02-25 | 2019-05-17 | 临沂金正阳管业有限公司 | A kind of compound heading for seamless steel pipe sizing |
| CN111420993A (en) * | 2020-04-07 | 2020-07-17 | 浙江巨龙钢业有限公司 | High-precision seamless steel tube cold rolling equipment and machining method thereof |
| CN111420993B (en) * | 2020-04-07 | 2021-09-17 | 浙江巨龙钢业有限公司 | High-precision seamless steel tube cold rolling equipment and machining method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190222 |