CN106825051A - A kind of piercing mill of seamless steel tube push rod - Google Patents
A kind of piercing mill of seamless steel tube push rod Download PDFInfo
- Publication number
- CN106825051A CN106825051A CN201710184032.5A CN201710184032A CN106825051A CN 106825051 A CN106825051 A CN 106825051A CN 201710184032 A CN201710184032 A CN 201710184032A CN 106825051 A CN106825051 A CN 106825051A
- Authority
- CN
- China
- Prior art keywords
- linkage section
- push rod
- section
- sleeve
- annular groove
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 14
- 239000010959 steel Substances 0.000 title claims abstract description 14
- 239000000498 cooling water Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 238000005096 rolling process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The present invention relates to seamless steel pipe puncturing technique field, specifically a kind of piercing mill of seamless steel tube push rod.Linkage section, the three-roller guiding devices on the outside of linkage section, cooling water pipe that the columned connecting rod and connecting rod that there is cylindrical hollow the inside that the top of the taper including inner hollow and top are bolted are bolted, linkage section are made up of the combination of the first linkage section, the second linkage section, N number of 3rd linkage section and the second linkage section that are linked in sequence, foot piece section.The linkage section of traditional push rod is divided into multistage by the present invention, and bearing is loaded onto on the second linkage section, so can increase the second linkage section and the 3rd linkage section according to the length of drilling, effectively solves to be contacted with the dynamic instability between guide roller when push rod is rolled.
Description
Technical field
The present invention relates to seamless steel pipe puncturing technique field, specifically a kind of piercing mill of seamless steel tube push rod.
Background technology
Traditional push rod of present seamless steel tube production application, is made up of top, connecting rod, linkage section and cooling water pipe.It is interior
Portion's water flowing cooling（Fig. 1）；Linkage section quickly rotates during billet production with pipe, and by three retractable roller guides of number set
The guide roller limitation push rod of device does not bend when high thrust is born.Such push rod due to during drilling/rolling due to quick
Rotation and the folding of guide roller so that push rod is constantly beated, cause top centralized positioning unstable, so as to influence 1, product wall thickness
Precision；2nd, three-roller guiding devices part life reduction.
When these problems are solved, typically all improving the centralized positioning precision of single set three-roller guiding devices and increasing push rod
Rigidity.
Such as：" application of punching machine three-roller centered positions control method " metallurgical power --- Li Enxue
" the positioning adjustment and control of three-roller centring device " steel rolling --- Hou Shuai, etc.
But the bad measure in pass center that three guide rollers of three-roller guiding devices are formed, and led with three rollers in the presence of traditional push rod
To the dynamic instability contact problems of the guide roller of device, because push rod is oversize, even if increasing rigidity can not effectively strengthen top
Bar stability.
The content of the invention
The technical problems to be solved by the invention are：How to solve push rod push rod in perforation procedure constantly to beat, cause
The unstable problem of top centralized positioning.
The technical solution adopted in the present invention is：The top and top of the taper including inner hollow are bolted
The inside columned connecting rod and connecting rod that have cylindrical hollow be bolted linkage section, installed in linkage section
The three-roller guiding devices in outside, cooling water pipe, linkage section is by the first linkage section, the second linkage section, N number of 3rd company that are linked in sequence
Connect combination, the foot piece section composition of section and the second linkage section；First linkage section one end and connecting rod be connected through a screw thread the other end with
Second linkage section is connected through a screw thread, the first linkage section into it is cylindric have inside it accommodate the hollow of cooling water pipe；Second connection
Duan Yiduan is connected through a screw thread the other end and passes through with the 3rd linkage section or foot piece section with the first linkage section or the 3rd linkage section
Threaded connection, have inside the second linkage section accommodate cooling water pipe it is hollow, have inside the 3rd linkage section receiving cooling water pipe in
Sky, there is an annular groove on the side wall of the second linkage section, bearing is provided with annular groove, and there are sleeve, three roller guides in bearing outside
Device is arranged on sleeve outside, and N is nonnegative integer.
As a kind of preferred embodiment：There are two bearings to be separately mounted to the both sides of annular groove in the annular groove, sleeve with
Annular groove edge junction is connected with sleeve by rubber seal, two bearings by interference fit.
The beneficial effects of the invention are as follows：The linkage section of traditional push rod is divided into multistage by the present invention, on the second linkage section
Bearing is loaded onto, so the second linkage section and the 3rd linkage section can be increased according to the length of drilling, when effectively solving push rod rolling
Dynamic instability between guide roller is contacted, and relative rotation is occurred in Bearing inner, rolling in the absence of vibration folding
State, so that push rod is always ensured that top alignment rolling center, further improves product wall thickness accuracy.And effectively extend
The part life of guider.
Brief description of the drawings
Fig. 1 is the structural representation of existing traditional push rod；
Fig. 2 is schematic structural view of the invention；
Fig. 3 is the first linkage segment structure schematic diagram；
Fig. 4 is the second linkage segment structure schematic diagram；
Fig. 5 is the 3rd linkage segment structure schematic diagram；
Fig. 6 is foot piece segment structure schematic diagram；
Wherein, 1, top, 2, connecting rod, 3, the guide roller in three-roller guiding devices, 4, linkage section, 5, cooling water pipe, 6, first
Linkage section, the 7, second linkage section, the 8, the 3rd linkage section, 9, foot piece section, 10, rubber seal, 11, bearing, 12, positioning sleeve, 13,
Linkage interior bar, 14, sleeve.
Specific embodiment
As shown in figure 1, traditional push rod of present seamless steel tube production application, by top, connecting rod, linkage section and cooling water
Pipe is constituted.Internal water flowing cooling；Linkage section quickly rotates during billet production with pipe, and by three retractable rollers of number set
The guide roller limitation push rod of guider does not bend when high thrust is born.Such push rod due to during drilling/rolling due to
Quick rotation and the folding of guide roller so that push rod is constantly beated, cause top centralized positioning unstable, so as to influence 1, product
Wall thickness accuracy；2nd, three-roller guiding devices part life reduction.
As shown in Fig. 2 in order to solve problems of the prior art, invention is improved traditional push rod,
The linkage section order of traditional push rod is divided into：First linkage section, the second linkage section, N number of 3rd linkage section and the second linkage section
Combination, foot piece section, it is front and rear between be connected through a screw thread, wherein, have an annular groove on the side wall of the second linkage section, in annular groove
There are two bearings to be separately mounted to the both sides of annular groove, installation sleeve on the outside of bearing so that in linkage interior bar rotation process, sleeve
Do not rotate, so that the guide roller clamp sleeve in three-roller guiding devices so that push rod is not beated.
As shown in figure 3, the left end of the first linkage section is threadedly attached in connecting rod, the left end of the first linkage section is interior
Screw thread, after a ladder is split into connecting rod, then opens the outer spiral shell coordinated with the left end of the first linkage section on the end of minor diameter
Line so that the first linkage section can hold out against connecting rod in rotation process, connecting rod produces very big thrust.First linkage section
Right-hand member inside open one it is round table-like it is hollow after open a cylindrical hollow again, internal thread is provided with cylindrical hollow, second connects
The left end for connecing section is provided with annular groove, and external screw thread is provided with annular groove so that the connection that the first linkage section is connected with second is steady
Determine reliable, and the second linkage section can hold out against the first linkage section and provide thrust to the first linkage section.
As shown in figure 4, the second linkage section is emphasis of the invention, a circle is opened on the central side wall of the second linkage section
Annular groove, a bearing is respectively installed at the two ends of groove, uses a centre internally hollow boss, the positioning of two concave ends
Set clamping；Two bearings, place bearing and are slided to center, and a sleeve is installed in bearing outside, and linkage interior bar passes through axle with overcoat
Support is held so that linkage interior bar and sleeve are constituted and rotate connection, in order to prevent debris from falling into bearing, in sleeve and annular trough rim
Edge junction is installed by rubber seal.The right-hand member of the second linkage section is provided with a ladder being similar to connecting rod right-hand member and same opens
There is external screw thread, with the connection for completing to coordinate with the left end of the 3rd linkage section or foot piece section.
As shown in figure 5, right-hand member structure of the left and right two ends of the 3rd linkage section all with the first linkage section is similar, it is therefore an objective to can
The combination of N number of 3rd linkage section and the second linkage section is formed, so that the present invention reaches the length of needs, by reducing or expanding
The combination of the 3rd linkage section and the second linkage section, that is, adjust the size of N, can reach random length, and N is 0 or natural number.
As shown in fig. 6, foot piece section is clutch end, the left end of foot piece section is threadedly coupled the second linkage section right-hand member, foot piece
The right-hand member connection PTO of section.
The course of work is as follows：
The depth for drilling as needed selects the size of N（I.e. selection the 3rd linkage section and the second linkage section combination number, can
It is individual to be 0 or random natural number）, three-roller guiding devices are compressed the sleeve of the second linkage section, before starting drilling, three rollers are led
It is identical to the quantity for being installed on sleeve, as top pierces steel pipe, same number is coordinated according to the exposed sleeve quantity outside steel pipe
The three-roller guiding devices of amount, clutch end drives foot piece section to rotate, then is connected by the second linkage section, the 3rd linkage section, first
Connecing section etc. drives top to rotate to steel tube drilling, and sleeve is not rotated in boring procedure, and only the linkage interior bar of sleeve inner is rotated.
Three-roller guiding devices hold static overcoat tightly during work roll, and overcoat is with three-roller guiding devices without relative rotation, and linkage interior bar is managed
Base transmission top thrust and with pipe synchronous axial system, be easy to pierced billet, be provided simultaneously with the function of positioning and be oriented to, seal is prevented
Dust and cooling water enter internal.Push rod section 2 typically arranges that 2-5 covers according to push rod length.
Dynamic instability contact problems when push rod is rolled and between guide roller are efficiently solved, and relative rotation occurs
In Bearing inner, rolling in the absence of vibration folding condition, so that push rod is always ensured that top alignment rolling center, enters one
Step improves product wall thickness accuracy.And effectively extend the part life of guider.
Claims (2)
1. in the top and top of a kind of taper of piercing mill of seamless steel tube push rod, including inner hollow are bolted
Linkage section that the columned connecting rod and connecting rod that there is cylindrical hollow in portion are bolted, installed in linkage section outside
Three-roller guiding devices, cooling water pipe, it is characterised in that：Linkage section is by the first linkage section, the second linkage section, the N that are linked in sequence
The combination of individual 3rd linkage section and the second linkage section, foot piece section composition；First linkage section one end is connected through a screw thread with connecting rod
The other end is connected through a screw thread with the second linkage section, the first linkage section into it is cylindric have inside it accommodate the hollow of cooling water pipe；
Second linkage section one end is connected through a screw thread the other end and the 3rd linkage section or tail with the first linkage section or the 3rd linkage section
Bar segment is connected through a screw thread, and has inside the second linkage section and accommodates the hollow of cooling water pipe, has receiving to cool down inside the 3rd linkage section
Water pipe it is hollow, have an annular groove on the side wall of the second linkage section, bearing is installed in annular groove, there is sleeve in bearing outside,
Three-roller guiding devices are arranged on sleeve outside, and N is nonnegative integer.
2. a kind of piercing mill of seamless steel tube push rod according to claim 1, it is characterised in that：There are two in the annular groove
Bearing is separately mounted to the both sides of annular groove, there is positioning sleeve between bearing, and sleeve passes through rubber blanket with annular groove edge junction
Sealing, two bearings are connected with sleeve by interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710184032.5A CN106825051B (en) | 2017-03-24 | 2017-03-24 | A kind of piercing mill of seamless steel tube mandril |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710184032.5A CN106825051B (en) | 2017-03-24 | 2017-03-24 | A kind of piercing mill of seamless steel tube mandril |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106825051A true CN106825051A (en) | 2017-06-13 |
| CN106825051B CN106825051B (en) | 2018-11-02 |
Family
ID=59130522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710184032.5A Expired - Fee Related CN106825051B (en) | 2017-03-24 | 2017-03-24 | A kind of piercing mill of seamless steel tube mandril |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106825051B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112246873A (en) * | 2020-09-03 | 2021-01-22 | 鑫鹏源(聊城)智能科技有限公司 | Connecting ejector rod for hot rolling and processing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5933010A (en) * | 1982-08-19 | 1984-02-22 | Kawasaki Steel Corp | Piercer for production of seamless steel pipe |
| EP0787542A2 (en) * | 1996-02-02 | 1997-08-06 | MANNESMANN Aktiengesellschaft | Mandrel and mandrel bar for skew-rolling mills |
| CN101224469A (en) * | 2008-02-01 | 2008-07-23 | 山西创奇实业有限公司 | Mobile mandril cooling and lubricating device |
| CN201969725U (en) * | 2010-12-27 | 2011-09-14 | 河南汇丰管业有限公司 | Core rod positioning device in perforating machine trolley |
| CN102247990A (en) * | 2011-05-27 | 2011-11-23 | 江苏武进不锈钢管厂集团有限公司 | Molybdenum-based tappet |
| CN204583852U (en) * | 2015-05-11 | 2015-08-26 | 聊城鑫鹏源金属制造有限公司 | The tube rolling device of pipe mill |
| DE102014105815A1 (en) * | 2014-04-24 | 2015-10-29 | Hans Joachim Pehle | Internal contiguous cooling water guide in piercer |
-
2017
- 2017-03-24 CN CN201710184032.5A patent/CN106825051B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5933010A (en) * | 1982-08-19 | 1984-02-22 | Kawasaki Steel Corp | Piercer for production of seamless steel pipe |
| EP0787542A2 (en) * | 1996-02-02 | 1997-08-06 | MANNESMANN Aktiengesellschaft | Mandrel and mandrel bar for skew-rolling mills |
| CN101224469A (en) * | 2008-02-01 | 2008-07-23 | 山西创奇实业有限公司 | Mobile mandril cooling and lubricating device |
| CN201969725U (en) * | 2010-12-27 | 2011-09-14 | 河南汇丰管业有限公司 | Core rod positioning device in perforating machine trolley |
| CN102247990A (en) * | 2011-05-27 | 2011-11-23 | 江苏武进不锈钢管厂集团有限公司 | Molybdenum-based tappet |
| DE102014105815A1 (en) * | 2014-04-24 | 2015-10-29 | Hans Joachim Pehle | Internal contiguous cooling water guide in piercer |
| CN204583852U (en) * | 2015-05-11 | 2015-08-26 | 聊城鑫鹏源金属制造有限公司 | The tube rolling device of pipe mill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112246873A (en) * | 2020-09-03 | 2021-01-22 | 鑫鹏源(聊城)智能科技有限公司 | Connecting ejector rod for hot rolling and processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106825051B (en) | 2018-11-02 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 |