CN104438358A - On-line roller distance dynamic fine adjusting device - Google Patents
On-line roller distance dynamic fine adjusting device Download PDFInfo
- Publication number
- CN104438358A CN104438358A CN201410846710.6A CN201410846710A CN104438358A CN 104438358 A CN104438358 A CN 104438358A CN 201410846710 A CN201410846710 A CN 201410846710A CN 104438358 A CN104438358 A CN 104438358A
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- CN
- China
- Prior art keywords
- oil cylinder
- face
- fixed
- rotating
- ring
- Prior art date
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- Granted
Links
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 238000005096 rolling process Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract 3
- 238000009785 tube rolling Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 27
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
Abstract
The invention discloses an on-line roller distance dynamic fine adjusting device, belongs to the technical field of oblique rolling, and relates to a two-roller seamless steel tube rolling mill. The problems that after a steel tube passes a stretch reducing mill, the longitudinal wall thickness precision is low, and the loss of the crop end is serious are solved. The on-line roller distance dynamic fine adjusting device comprises a rotating device fixed into a shell, a rotating friction pair and a quick-opening oil cylinder. The rotating friction pair is composed of a rotating ring and a static ring, wherein the end face of the rotating ring is a spiral face. The rotating device rotates in the shell through a bearing, and the rotating ring is fixed to the tail end face of the rotating device. The quick-opening oil cylinder is fixed into the shell through limiting keys and can only move back and forth along the axis. The static ring is fixed to a cylinder of the quick-opening oil cylinder, and the end face of the rotating ring and the end face of the static ring are coaxially and oppositely installed. A common hydraulic system and an electric control system are adopted, a hydraulic and control system is simplified, the investment of the device is reduced, and the reliability, simplicity and convenience of device running are improved.
Description
Technical field
The invention belongs to oblique milling technical field, relate to two roller slitless tube mills, be specifically related to a kind of roller for two-roller skew-rolling slitless tube mill apart from online dynamic micro-adjustments device.
Technical background
Hot rolled seamless steel tube production technology is the technology by operations such as heating of pipe blank, perforation, mill milling, sizing, alignings, solid pipe billet being processed into seamless steel pipe, tradition two roller slitless tube mills do not have roll spacing on-line tuning function, in the process of rolled steel tube, there will be the phenomenon that steel pipe head, tail wall thickness are overproof, cause crop, back-end crop length to increase the problem directly affecting the lumber recovery of steel pipe.
In order to solve the problems referred to above that prior art exists, the present invention have developed a kind of roller apart from online dynamic micro-adjustments device, and this device adopts mechan-amplifier principle to solve roll spacing and accurately controls a difficult problem online.
Summary of the invention
The present invention is low at longitudinal wall thickness accuracy after opening and subtracting machine in order to solve steel pipe, and crop end loses serious problem, and provides a kind of roller apart from online dynamic micro-adjustments device.This device adopts mechan-amplifier principle to solve roller apart from dynamically accurately controlling a difficult problem online.
The present invention is achieved by the following technical solutions:
A kind of roller, apart from online dynamic micro-adjustments device, comprises the slewing equipment be fixed in housing, spin friction is secondary and open oil cylinder soon; Described spin friction is secondary is that the rotating ring of helicoid and stationary ring form by end face; Described slewing equipment is rotated in housing by bearing, and rotating ring is fixed on the terminal surface of slewing equipment; Described oil cylinder of opening soon is fixed in housing can only be seesawed along axis by positive stop key, and stationary ring is fixed on to be opened on the cylinder barrel of oil cylinder soon, and wherein the end face of rotating ring and stationary ring is coaxially installed in opposite directions.
The end face 3-8 section of described rotating ring and stationary ring, specifically determine according to ring central diameter size and fine setting ultimate range, the relative rotation angle of helicoid regulating ring when number of fragments determines fine setting, every section is helicoid, arrange between helicoid and be free cutter spacing, lead angle tangent value equals the ratio of amount trimmed rotary distance relative in central diameter.
The described cylinder rod opening oil cylinder is soon built-in with displacement transducer.
When installing and using, the present invention can adopt an oil cylinder to drive the mode of two covering devices to install by connecting rod, and as shown in Figure 3, the mode that also set of device can be adopted to join an oil cylinder is installed, as shown in Figure 4.During installation, can be arranged on roll, also can be placed on frame, coordinate with balancing cylinder and adjust mill rolls apart from value, to be installed on roll-box, open oil cylinder masthead soon on frame, the balancing cylinder that roll-box is fixed in frame pulls, make to drive oil cylinder bar soon and contact gapless with frame mechanical planarization, installation diagram as shown in Figure 5,6.
The present invention is secondary and open oil cylinder soon by spin friction, realizes the object of on-line tuning roll spacing, and the effect first opened soon, as steel pipe rolling distance afterbody 50-100mm, is opened oil cylinder soon and opened fast steel pipe is passed through, prevent tail card accident from occurring; It two is drive cylinder action roll soon to open when roll-force exceedes setting value, and steel pipe stops rolling, and proterctive equipment is not impaired; And form spin friction pair employing mechan-amplifier principle solution roller apart from dynamically accurately controlling a difficult problem online by helicoid regulating ring.
Roller distance on-line tuning of the present invention is for four sections of helicoids, during initial position, a pair helicoid regulating ring is coaxially put in opposite directions, the height point of every section of helicoid and the low point gearing of helicoid corresponding with it, four sections of helicoids are tightly cut and are meshed together under roll-force effect; Rotating ring is fixed on slewing equipment end face by hexagon socket head cap screw and key, and slewing equipment is installed in housing and can only rotates and can not axial feed or return; Stationary ring is fixed on by hexagon socket head cap screw and key to be opened on cylinder tube soon, limited location key between cylinder tube and housing, can only feeding and returning in the axial direction, moves without spin; During work, as shown in Figure 3, slewing equipment driven rotary ring under the promotion driving oil cylinder circumferentially rotates to an angle α, make rotating ring and stationary ring that relative rotation occur, angle is α, and between two rings, axial distance increases s, s value and the proportional relation of anglec of rotation α; Due to rotating ring under thrust bearing effect without axial feed motion, stationary ring is pushed out the displacement of s distance vertically, and also just will open the displacement that s distance released by oil cylinder soon, this s value is the value of roller apart from online dynamic conditioning.
The present invention adopts mechan-amplifier principle to solve the control difficult problem of roller apart from online accurate adjustment, roller is generally between 0-1mm apart from adjusting range, Adjustment precision is 0.01mm, control accuracy requires high, stroke range is little, adopt hydraulic servo control system investment high, the unstable maintenance cost of system is high, requires high to operator.And this device adopts mechan-amplifier principle can by the fine setting distance s(0-1mm of roll) be enlarged into the Long Distances L driving oil cylinder, L value is generally 50 ~ 100 times of s value, and multiplication factor is usually by the helicoid parameter decision in spin friction pair.Conversely, the error of oil cylinder stroke is driven to be reduced by this device, being embodied in roller apart from online dynamically its alignment error upper is 0.001 ~ 0.02 times that drives oil cylinder stroke departure, such as oil cylinder stroke error is driven to be 2mm, being embodied in roller apart from upper error is 0.002 ~ 0.04mm, meet roller apart from online dynamic conditioning control accuracy, decrease the complexity controlling difficulty and system; Roller detects feedback in order to control to drive the stroke of oil cylinder apart from adjustment amount in real time by the displacement transducer put in the inner, drive simultaneously oil cylinder also inbuilt displacement sensor be used for detecting its stroke, detected value is fed back to control system and forms closed loop servo-control system.
The present invention adopts conventional hydraulic system and electric-control system, simplifies hydraulic pressure and control system, reduces the investment of equipment, improves equipment reliability of operation and simplicity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is rotating ring schematic perspective view;
Fig. 3 is the drive unit schematic diagram that employing oil cylinder is driven by connecting rod;
Fig. 4 is the drive unit schematic diagram of employing two hydraulic oil cylinder driving;
Fig. 5 is scheme of installation of the present invention;
Fig. 6 is the present invention's scheme of installation on roll-box.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
A kind of roller as shown in Figure 1, 2, apart from online dynamic micro-adjustments device, comprises the slewing equipment 3 be fixed in housing, spin friction is secondary and open oil cylinder 6 soon; Described spin friction is secondary is that the rotating ring 4 of helicoid and stationary ring 5 form by end face; Described slewing equipment 3 is rotated in housing 7 by bearing, and rotating ring 4 is fixed on the terminal surface of slewing equipment 3; Described oil cylinder 6 of opening soon is fixed in housing can only be seesawed along axis by positive stop key, and stationary ring is fixed on to be opened on the cylinder barrel of oil cylinder soon, and wherein the end face of rotating ring and stationary ring is installed in opposite directions.
Wherein the end face of rotating ring 4 and stationary ring 5 is the helicoid of 3-8 section, and arranging between each helicoid is free cutter spacing 8; The cylinder rod opening oil cylinder 6 is soon built-in with displacement transducer 2.
Type of drive can be driven the mode of two covering devices as shown in Figure 3,4 by connecting rod 10 by an oil cylinder 9, the mode that set of device also can be adopted to join an oil cylinder is carried out.
During installation, can be arranged on roll 12, also can be placed on frame 11, coordinate with balancing cylinder and adjust mill rolls apart from value, to be installed on roll-box, open oil cylinder masthead soon on frame, the balancing cylinder that roll-box is fixed in frame pulls, make to drive oil cylinder bar soon and contact gapless with frame mechanical planarization, installation diagram as shown in Figure 5,6.
Claims (4)
1. roller is apart from an online dynamic micro-adjustments device, it is characterized in that, comprises the slewing equipment (3) be fixed in housing (1), spin friction is secondary and open oil cylinder (6) soon; Described spin friction pair (4) is that the rotating ring (4) of helicoid and stationary ring (5) form by end face; Described slewing equipment (3) is rotated in housing (7) by bearing, and rotating ring (4) is fixed on the terminal surface of slewing equipment (3); Described oil cylinder (6) of opening soon is fixed in housing can only be seesawed along axis by positive stop key, and stationary ring is fixed on to be opened on the cylinder barrel of oil cylinder soon, and wherein the end face of rotating ring and stationary ring is installed in opposite directions.
2. a kind of roller according to claim 1 is apart from online dynamic micro-adjustments device, it is characterized in that, described rotating ring (4) and the end face of stationary ring (5) are the helicoid of 3-8 section, and arranging between each helicoid is free cutter spacing (8).
3. a kind of roller according to claim 1 and 2 is apart from online dynamic micro-adjustments device, it is characterized in that, the described cylinder rod opening oil cylinder (6) is soon built-in with displacement transducer (2).
4. a kind of roller, apart from online dynamic micro-adjustments device, is characterized in that according to claim 1, and during driving, drive the mode of two covering devices to drive by an oil cylinder by connecting rod, the mode that set of device also can be adopted to join an oil cylinder is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846710.6A CN104438358B (en) | 2014-12-31 | 2014-12-31 | A kind of roller is away from online dynamic micro-adjustments device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846710.6A CN104438358B (en) | 2014-12-31 | 2014-12-31 | A kind of roller is away from online dynamic micro-adjustments device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104438358A true CN104438358A (en) | 2015-03-25 |
| CN104438358B CN104438358B (en) | 2016-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410846710.6A Active CN104438358B (en) | 2014-12-31 | 2014-12-31 | A kind of roller is away from online dynamic micro-adjustments device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104438358B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127246A (en) * | 2015-09-25 | 2015-12-09 | 中国重型机械研究院股份公司 | Quick-opening device of rotating hub type straightening machine |
| CN111167861A (en) * | 2019-12-25 | 2020-05-19 | 鑫鹏源智能装备集团有限公司 | Precise automatic pipe rolling machine and pipe rolling method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2346519Y (en) * | 1998-04-28 | 1999-11-03 | 雷亚夫 | High speed double-line dual-side rib cold rolled reinforced bar containuous rolling mill |
| CN1919530A (en) * | 2006-09-11 | 2007-02-28 | 何龙 | Manufacturing technique of heavy caliber alloy seamless steel pipe |
| US20090235707A1 (en) * | 2006-03-15 | 2009-09-24 | Birger Schmidt | Method For The Operation Of A Rolling Mill Used For Milling A Strip-Shaped Rolling Stock |
| KR20130101787A (en) * | 2012-03-06 | 2013-09-16 | 주식회사 포스코 | Apparatus for rolling mill's spline |
| CN103934284A (en) * | 2014-04-09 | 2014-07-23 | 太原重工股份有限公司 | Adjusting device for reeling mill roller distance |
| CN204503779U (en) * | 2014-12-31 | 2015-07-29 | 太原磬泓机电设备有限公司 | A kind of roller is apart from online dynamic micro-adjustments device |
-
2014
- 2014-12-31 CN CN201410846710.6A patent/CN104438358B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2346519Y (en) * | 1998-04-28 | 1999-11-03 | 雷亚夫 | High speed double-line dual-side rib cold rolled reinforced bar containuous rolling mill |
| US20090235707A1 (en) * | 2006-03-15 | 2009-09-24 | Birger Schmidt | Method For The Operation Of A Rolling Mill Used For Milling A Strip-Shaped Rolling Stock |
| CN1919530A (en) * | 2006-09-11 | 2007-02-28 | 何龙 | Manufacturing technique of heavy caliber alloy seamless steel pipe |
| KR20130101787A (en) * | 2012-03-06 | 2013-09-16 | 주식회사 포스코 | Apparatus for rolling mill's spline |
| CN103934284A (en) * | 2014-04-09 | 2014-07-23 | 太原重工股份有限公司 | Adjusting device for reeling mill roller distance |
| CN204503779U (en) * | 2014-12-31 | 2015-07-29 | 太原磬泓机电设备有限公司 | A kind of roller is apart from online dynamic micro-adjustments device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127246A (en) * | 2015-09-25 | 2015-12-09 | 中国重型机械研究院股份公司 | Quick-opening device of rotating hub type straightening machine |
| CN111167861A (en) * | 2019-12-25 | 2020-05-19 | 鑫鹏源智能装备集团有限公司 | Precise automatic pipe rolling machine and pipe rolling method |
| CN111167861B (en) * | 2019-12-25 | 2020-11-27 | 鑫鹏源智能装备集团有限公司 | Precise automatic pipe rolling machine and pipe rolling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104438358B (en) | 2016-11-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Guoqing Inventor after: Yang Erqiang Inventor after: Dong Xuehong Inventor after: Li Chunmiao Inventor before: Zhang Guoqing Inventor before: Dong Xuehong Inventor before: Li Chunmiao |
|
| COR | Change of bibliographic data | ||
| CP03 | Change of name, title or address |
Address after: No. 18, East Lane, Chengjia Village, Shengli Street, Xinghualing District, Taiyuan City, Shanxi Province, 030000 Patentee after: Taiyuan Qinghong Intelligent Equipment Co.,Ltd. Country or region after: China Address before: No. 41, Aluminum Factory Lane, Xinghua West Street, Wanbailin District, Taiyuan City, Shanxi Province, 030024 Patentee before: TAIYUAN QINGHONG ELECTRONIC MACHINE CO.,LTD. Country or region before: China |
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| CP03 | Change of name, title or address |