CN103316917B - Three-roller skew continuous rolling mill for producing tubes or bars - Google Patents
Three-roller skew continuous rolling mill for producing tubes or bars Download PDFInfo
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- CN103316917B CN103316917B CN201310240400.5A CN201310240400A CN103316917B CN 103316917 B CN103316917 B CN 103316917B CN 201310240400 A CN201310240400 A CN 201310240400A CN 103316917 B CN103316917 B CN 103316917B
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Abstract
The invention discloses a three-roller skew continuous rolling mill for producing tubes or bars, and belongs to the field of seamless tube and bar production equipment. The three-roller skew continuous rolling mill is characterized in that an electric transmission mechanism drives rollers of front and rear rolling mills (I and II) to rotate at an inlet end and an outlet end respectively, blanks spirally move forward and are punched or rolled under the action of the rollers after tube blanks or the bars are fed into the front rolling mill (I), the blanks enter the rear rolling mill (II) and continue to be rolled, the rolling and secondary punching process is finished, rotary adjusting mechanisms mounted on frames of the front and rear rolling mills (I and II) are adjusted by a motor and a control system, a rotary lead screw drives a rotatable screw-down mechanism to anticlockwise rotate, so that a feed angle is enlarged, otherwise, the feed angle is decreased, rolling reduction of the rollers can be changed by adjusting a screw-down lead screw, namely, hole patterns are changed, a rolling angle is adjusted, on-line instant adjustment can be conveniently realized through an online detection and control system, and a tail triangle can be effectively prevented.
Description
Technical field
The invention belongs to seamless tubular goods or bar production apparatus field, be specifically related to a kind of oblique tandem mill producing tubing or bar.
Technical background
At present, oblique milling method is utilized to produce the equipment of tubing and bar both at home and abroad, generally completed by perforating apparatus, rolling tube equipment and follow-up equipment, technological process is long, equipment investment is large, to requiring that the higher special material of temperature range, deflection uses existing oblique roll process equipment to be difficult to produce, and utilizes tubing and the bar of other explained hereafter special material, there is equipment requirement high, high in cost of production problem.
Summary of the invention
The object of the invention is to provide a kind of oblique tandem mill producing tubing or bar, can overcome the shortcoming that prior art exists.
The present invention realizes like this, as shown in Figure 1, its structural feature is that it includes leading portion milling train I and back segment milling train II, front and back section milling train I, II constructs identical, frame 1, the 1 ' end of front and back section milling train I, II is bolted together, the front end of front and back section milling train I, II is power transmission input, and end is the one end installing slewing bearing seat; Now be configured to example with leading portion milling train I, as shown in Figure 2, the axis of three rolls is equilateral triangle distribution, three rolls are arranged on the roll mandrel of respective correspondence respectively, for one of them roll mandrel, be provided with roll 15 in the middle part of roll mandrel 12 as shown in Figure 4, roll mandrel about 15 is separately installed with left and right spherical rolling bearing 14,14 ', and the input of roll mandrel 12 is connected with power drive mechanism by flange 13; In the middle part of roll mandrel 12 install right spherical rolling bearing 14 ' with can not be connected by pivotal screw-down, roll mandrel 12 end installation left spherical rolling bearing 14 be connected with pivotal screw-down; Described screw-down is as figure 5 illustrates, and lower end spherical support seat 20 is hinged with left spherical rolling bearing 14 or right spherical rolling bearing 14 ', the middle part of upper end screw-down bearing 17 by copper nut 18 with depress leading screw 19 and be connected; The screw-down be hinged with left spherical rolling bearing 14 is connected with slew gear, the structure of described slew gear as shown in Figure 6, link 11 is connected with screw-down bearing 17, link 11 lower end and connecting rod 7 are hinged, connecting rod 7 lower end is connected with revolution leading screw 8, revolution leading screw 8 is arranged on middle part and is equipped with in the moving block 9 of copper nut, and moving block 9 is connected with frame by connecting bearing 10.
Accompanying drawing explanation
Fig. 1 is constructing stereo schematic diagram of the present invention
Fig. 2 is the left view of Fig. 1
Fig. 3 is front view of the present invention
Fig. 4 is roll mandrel sectional arrangement drawing of the present invention
Fig. 5 is screw-down schematic diagram of the present invention
Fig. 6 is slew gear schematic diagram of the present invention
In figure: I---leading portion milling train, II---back segment milling train, 1---the frame of leading portion milling train I, 1 '---the frame of back segment milling train II, 2---support, 3---guide rail, 4, 4 ', 4 "---three power transmission shafts be connected with leading portion milling train I 3 roll mandrels respectively, 5---the revolution guide groove of screw-down in leading portion milling train I, 5 '---the revolution guide groove of screw-down in back segment milling train II, 6---rotatable screw-down, 6 '---fixing screw-down, 7---connecting rod, 8---revolution leading screw, 9---moving block, 10---connect bearing, 11---link, 12---roll mandrel, 13---adpting flange, 14, 14 '---left and right spherical rolling bearing, 15---roll, 16---contiguous block, 17---screw-down bearing, 18---copper nut, 19---pressure leading screw, 20---spherical support seat, R---represent arrival end, C---represent the port of export
Detailed description of the invention
As shown in Figure 1, the roll rotation of section milling train I, II before and after arrival end R and port of export C drives respectively by electric transmissio mechanism, after pipe or bar are sent into leading portion milling train I, blank spiral under roll effect advances, carry out boring a hole or rolling, then then enter back segment milling train II and proceed rolling, complete rolling or secondary punch process.
Revolution guiding mechanism by motor and control system adjustment are arranged in the frame of front and back section milling train I, II: revolution leading screw 8 drives rotatable screw-down to be rotated counterclockwise, and feed angle is increased; Otherwise revolution leading screw 8 turns clockwise, and makes feed angle reduce.Adjustment pressure leading screw 19, can realize the change of roll drafts, i.e. pass change, realizes the adjustment at roll off angle simultaneously.By on-line checkingi and control system, conveniently can realize online instantaneous adjustment, can effectively prevent tail triangle from occurring.
Claims (1)
1. produce the oblique tandem mill of three rollers of tubing or bar for one kind, its structural feature is that it includes leading portion milling train (I) and back segment milling train (II), make in the operation of rolling, to realize oblique milling continuous rolling relationship, front and back section milling train (I, II) structure is identical, front and back section milling train (I, II) frame (1, 1 ') end is bolted together, front and back section milling train (I, II) front end is power transmission input, end is the one end installing slewing bearing seat, now be configured to example with leading portion milling train (I), the axis of three rolls is equilateral triangle distribution, three rolls are arranged on the roll mandrel of respective correspondence respectively, for one of them roll mandrel, roll mandrel (12) middle part is provided with roll (15), roll mandrel (12) left and right is separately installed with left and right spherical rolling bearing (14, 14 '), the input of roll mandrel (12) is connected with power drive mechanism by flange (13), roll mandrel (12) middle part install right spherical rolling bearing (14 ') with can not be connected by pivotal screw-down, the left spherical rolling bearing (14) that roll mandrel (12) end is installed is connected with pivotal screw-down, described screw-down is, lower end spherical support seat (20) is hinged with left spherical rolling bearing (14) or right spherical rolling bearing (14 '), the middle part of upper end screw-down bearing (17) is connected with pressure leading screw (19) by copper nut (18), the screw-down be hinged with left spherical rolling bearing (14) is connected with slew gear, described slew gear is that link (11) is connected with screw-down bearing (17), link (11) lower end and connecting rod (7) are hinged, connecting rod (7) lower end is connected with revolution leading screw (8), revolution leading screw (8) is arranged on middle part and is equipped with in the moving block (9) of copper nut, moving block (9) is connected with frame by connecting bearing (10), revolution guiding mechanism by motor and control system adjustment are arranged in the frame of front and back section milling train I, II: revolution leading screw (8) drives rotatable screw-down to be rotated counterclockwise, and feed angle is increased, otherwise revolution leading screw (8) turns clockwise, and makes feed angle reduce, adjustment pressure leading screw (19), can realize the change of roll drafts, i.e. pass change, realizes the adjustment at roll off angle simultaneously, by on-line checkingi and control system, conveniently can realize online instantaneous adjustment, can effectively prevent tail triangle from occurring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310240400.5A CN103316917B (en) | 2013-06-18 | 2013-06-18 | Three-roller skew continuous rolling mill for producing tubes or bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310240400.5A CN103316917B (en) | 2013-06-18 | 2013-06-18 | Three-roller skew continuous rolling mill for producing tubes or bars |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103316917A CN103316917A (en) | 2013-09-25 |
| CN103316917B true CN103316917B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310240400.5A Active CN103316917B (en) | 2013-06-18 | 2013-06-18 | Three-roller skew continuous rolling mill for producing tubes or bars |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127213B (en) * | 2015-09-30 | 2017-01-18 | 太原科技大学 | Metal stacking/drawing deformation detection device in steel tube diagonal continuous rolling |
| CN108372206A (en) * | 2018-03-27 | 2018-08-07 | 北京科技大学 | A kind of Integral elastic material guide device of oblique milling copper rod |
| CN108339858B (en) * | 2018-05-21 | 2024-06-04 | 北京科技大学 | Radial elastic feeding device for oblique rolled bar |
| CN109158422A (en) * | 2018-08-06 | 2019-01-08 | 宁波大学 | A kind of forming device for high-speed rail hole-bored axle from end to end |
| CN111545573B (en) * | 2020-06-22 | 2021-03-09 | 太原科技大学 | Roller rotary rolling mill |
| CN112222191B (en) * | 2020-09-19 | 2022-09-23 | 太原科技大学 | Six-roller cold rolling mill for difficult-to-deform metal seamless pipe |
| CN113953334B (en) * | 2021-11-04 | 2023-06-06 | 常熟中佳新材料有限公司 | Three-roller rolling equipment for processing air conditioner refrigerating copper pipe |
| CN115026132A (en) * | 2022-05-16 | 2022-09-09 | 燕山大学 | Rotary extrusion-rolling forming device and extrusion-rolling forming method for small pipe blank |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3465563A (en) * | 1965-07-23 | 1969-09-09 | Vallourec | Tube rolling mill for producing thin walled tubes |
| US4989432A (en) * | 1990-01-16 | 1991-02-05 | Turner Machine Company | System and method of detecting roll position in a rotary straightener |
| 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 |
| CN201579268U (en) * | 2009-12-23 | 2010-09-15 | 太原通泽重工有限公司 | Screwdown balance mechanism of swivel stand-integrated exchangeable three-roller pipe mill |
| CN201618720U (en) * | 2009-12-24 | 2010-11-03 | 太原通泽重工有限公司 | Three-roller straightening machine |
| CN201807605U (en) * | 2010-08-05 | 2011-04-27 | 太原通泽重工有限公司 | Open rack three-roller skew rolling stretching machine |
| CN102172625A (en) * | 2011-01-30 | 2011-09-07 | 太原科技大学 | Seamless steel pipe three-roller skew tandem rolling production method and apparatus thereof |
| CN102274852A (en) * | 2011-04-29 | 2011-12-14 | 广东冠邦科技有限公司 | Three-roller spiral pore type rolling mill |
-
2013
- 2013-06-18 CN CN201310240400.5A patent/CN103316917B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3465563A (en) * | 1965-07-23 | 1969-09-09 | Vallourec | Tube rolling mill for producing thin walled tubes |
| US4989432A (en) * | 1990-01-16 | 1991-02-05 | Turner Machine Company | System and method of detecting roll position in a rotary straightener |
| 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 |
| CN201579268U (en) * | 2009-12-23 | 2010-09-15 | 太原通泽重工有限公司 | Screwdown balance mechanism of swivel stand-integrated exchangeable three-roller pipe mill |
| CN201618720U (en) * | 2009-12-24 | 2010-11-03 | 太原通泽重工有限公司 | Three-roller straightening machine |
| CN201807605U (en) * | 2010-08-05 | 2011-04-27 | 太原通泽重工有限公司 | Open rack three-roller skew rolling stretching machine |
| CN102172625A (en) * | 2011-01-30 | 2011-09-07 | 太原科技大学 | Seamless steel pipe three-roller skew tandem rolling production method and apparatus thereof |
| CN102274852A (en) * | 2011-04-29 | 2011-12-14 | 广东冠邦科技有限公司 | Three-roller spiral pore type rolling mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103316917A (en) | 2013-09-25 |
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