CN104117540B - A kind of mandrel stem of large-scale double-roller cold pilger mill - Google Patents
A kind of mandrel stem of large-scale double-roller cold pilger mill Download PDFInfo
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- CN104117540B CN104117540B CN201410368664.3A CN201410368664A CN104117540B CN 104117540 B CN104117540 B CN 104117540B CN 201410368664 A CN201410368664 A CN 201410368664A CN 104117540 B CN104117540 B CN 104117540B
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- mandrel stem
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- cold pilger
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Abstract
The invention belongs to field of metallurgical mechanical equipment, be specifically related to a kind of mandrel stem of large-scale double-roller cold pilger mill, comprise the left joint for connecting double-roller cold pilger mill mandrel stem dolly successively, connect revolving feed device for driving the pivotal splined shaft of mandrel stem, some plug bodies of rod and the right connector for installing rolling tool, described left joint, splined shaft, by bolt-connection behind seam location between mandrel stem and right connector, and joint face place is provided with flat key, for transmitting torque, simple and reliable for structure, easy accessibility, and the gyration of energy reliable delivery, the revolution that large-scale side charging double-roller cold pilger mill drives mandrel stem can be applicable to.
Description
Technical field
The invention belongs to field of metallurgical mechanical equipment, be specifically related to a kind of mandrel stem of large-scale double-roller cold pilger mill.
Background technology
Mandrel stem is the important component part of double-roller cold pilger mill, mandrel stem head is provided with rolling tool plug, mandrel stem afterbody to be arranged on mandrel stem dolly and to be provided with draw-in groove or gear, mandrel stem revolution is driven by turning transmission system, during rolling, axial rolling force is delivered to mandrel stem clamp system by mandrel stem, and mandrel stem needs to possess certain strength and stiffness, mandrel stem length is general longer, need be connected into one with many mandrel stems.In prior art, connection between many mandrel stems adopts thread connection or Type of Welding more, the mandrel stem diameter of Large Scale Cold pipe mill and weight are all larger, the inconvenient screw thread of thread connection form is adopted to tighten neutralization, dismounting is very wasted time and energy, Type of Welding cannot be dismantled, and welding job amount is large, and can not ensure the linearity of mandrel stem; The draw-in groove of afterbody or gear forms are not suitable for large-scale side charging double-roller cold pilger mill yet and drive mandrel stem revolution.
Summary of the invention
An object of the present invention compares when being and overcoming existing mandrel stem dismounting to waste time and energy, the problem even cannot dismantled.
Two of object of the present invention overcomes the draw-in groove of existing mandrel stem afterbody or gear forms not to be suitable for large-scale side charging double-roller cold pilger mill and to drive the pivotal problem of mandrel stem.
For this reason, the invention provides a kind of mandrel stem of large-scale double-roller cold pilger mill, comprise the left joint for connecting double-roller cold pilger mill mandrel stem dolly, the body of rod connecting left joint and connecting-rod body successively and right connector for installing rolling tool, be bolted splined shaft between described left joint and the body of rod, the described body of rod forms by multiple plug body of rod is with bolts in turn.
The left end end face of the left end end face of the right-hand member end face of described left joint, the left end end face of splined shaft and right-hand member end face, the plug body of rod and right-hand member end face, right connector is provided with at least one seam, and the seam of two end faces connected is respectively recessed seam and male half coupling.
The above-mentioned recessed seam that matches and male half coupling all offer the keyway of docking, are provided with flat key in this keyway.
The left end side of the left end side of the described right end side of left joint, the left end side of splined shaft and right end side, the plug body of rod and right end side, right connector all circumference is evenly distributed with the rectangular recess of same number, and has bolt hole between rectangular recess sidewall and each end face.
Beneficial effect of the present invention: this mandrel stem of the present invention, by end face seam location centering, each joint, the body of rod and splined shaft are by being arranged on the flat key transmitting torque between end face, circumference bolt-connection is fixed, simple and reliable for structure, easy accessibility, and the gyration of energy reliable delivery, the revolution that large-scale side charging double-roller cold pilger mill drives mandrel stem can be applicable to.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A portion enlarged drawing in Fig. 1.
Description of reference numerals: 1, left joint; 2, the plug body of rod; 3, right connector; 4, splined shaft; 5, seam; 6, flat key; 7, male half coupling; 8, recessed seam.
Detailed description of the invention
In view of the structure of existing mandrel stem, connection between many mandrel stems adopts thread connection or Type of Welding more, the mandrel stem diameter of Large Scale Cold pipe mill and weight are all larger, the inconvenient screw thread of thread connection form is adopted to tighten neutralization, dismounting is very wasted time and energy, Type of Welding cannot be dismantled, and welding job amount is large, and can not ensure the linearity of mandrel stem; The draw-in groove of afterbody or gear forms are not suitable for large-scale side charging double-roller cold pilger mill yet and drive mandrel stem revolution.
The invention provides a kind of mandrel stem of large-scale double-roller cold pilger mill, as shown in Figure 1, comprising the left joint 1 for connecting double-roller cold pilger mill mandrel stem dolly successively, connecting the body of rod of left joint 1 and connecting-rod body and right connector 3 for installing rolling tool, be bolted between described left joint 1 and the body of rod and driven the pivotal splined shaft 4 of mandrel stem for connecting revolving feed device, the described body of rod forms by multiple plug body of rod 2 is with bolts in turn.
In order to realize one of object: compare when overcoming existing mandrel stem dismounting and waste time and energy, the problem even cannot dismantled.The present invention abandons thread connection of the prior art or Type of Welding, form with bolts, the left end side of the right end side of left joint 1, the left end side of splined shaft 4 and right end side, the plug body of rod 2 and right end side, right connector 3 left end side all circumference be evenly distributed with the rectangular recess of same number, and rectangular recess sidewall has the bolt hole being communicated with each end face, conveniently can be connected and installed two adjacent parts by bolt.
And be provided with at least one for aiming at the seam 5 of centering centering at the left end end face of the left end end face of the right-hand member end face of left joint 1, the left end end face of splined shaft 4 and right-hand member end face, the plug body of rod 2 and right-hand member end face, right connector 3, and the seam 5 of two end faces connected is respectively recessed seam 8 and male half coupling 7, as shown in Figure 2, realize fast aligning centering with seam 5, left joint 1, splined shaft 4, the plug body of rod 2, right connector 3 rapid-assembling can be linked together.
The above-mentioned recessed seam 8 that matches and male half coupling 7 all offer the keyway of docking, and be provided with flat key 6 in this keyway, this flat key 6 is mainly used in transmitting torque, makes total unitary rotation in rotation process, also has certain protective effect to bolt.Here keyway also can be arranged on other positions of end circumference, only otherwise overlapping with rectangular recess.
In order to realize object two: the draw-in groove or the gear forms that overcome existing mandrel stem afterbody are not suitable for the pivotal problem of large-scale side charging double-roller cold pilger mill driving mandrel stem.The present invention adds splined shaft 4 in the structure, and mandrel stem is coordinated with the internal spline of turning transmission system by the external splines of this splined shaft 4, is used for transmitting gyration.Do not need draw-in groove or gear forms to transmit gyration.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (3)
1. the mandrel stem of a large-scale double-roller cold pilger mill, comprise the left joint (1) for connecting double-roller cold pilger mill mandrel stem dolly, the body of rod connecting left joint (1) and connecting-rod body successively and right connector (3) for installing rolling tool, it is characterized in that: be bolted splined shaft (4) between described left joint (1) and the body of rod, the described body of rod forms by multiple plug body of rod (2) is with bolts in turn; The left end end face of the left end end face of the right-hand member end face of described left joint (1), the left end end face of splined shaft (4) and right-hand member end face, the plug body of rod (2) and right-hand member end face, right connector (3) is provided with at least one seam (5), and the seam (5) on two end faces connected is respectively recessed seam (8) and male half coupling (7).
2. the mandrel stem of large-scale double-roller cold pilger mill as claimed in claim 1, is characterized in that: the recessed seam (8) matched and male half coupling (7) all offer the keyway of docking, are provided with flat key (6) in this keyway.
3. the mandrel stem of large-scale double-roller cold pilger mill as claimed in claim 1, it is characterized in that: the left end side of the left end side of the right end side of described left joint (1), the left end side of splined shaft (4) and right end side, the plug body of rod (2) and right end side, right connector (3) all circumference is evenly distributed with the rectangular recess of same number, and rectangular recess sidewall has the bolt hole being communicated with each end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368664.3A CN104117540B (en) | 2014-07-30 | 2014-07-30 | A kind of mandrel stem of large-scale double-roller cold pilger mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368664.3A CN104117540B (en) | 2014-07-30 | 2014-07-30 | A kind of mandrel stem of large-scale double-roller cold pilger mill |
Publications (2)
| Publication Number | Publication Date |
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| CN104117540A CN104117540A (en) | 2014-10-29 |
| CN104117540B true CN104117540B (en) | 2016-03-16 |
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| CN201410368664.3A Active CN104117540B (en) | 2014-07-30 | 2014-07-30 | A kind of mandrel stem of large-scale double-roller cold pilger mill |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1950938A (en) * | 1932-02-23 | 1934-03-13 | Nat Tube Co | Piercing point |
| JPH09271835A (en) * | 1996-04-05 | 1997-10-21 | Sanyo Special Steel Co Ltd | Hot extrusion mandrel of tube with internal fin |
| CN101224469A (en) * | 2008-02-01 | 2008-07-23 | 山西创奇实业有限公司 | Mobile mandril cooling and lubricating device |
| CN101559436A (en) * | 2009-05-20 | 2009-10-21 | 太原重工股份有限公司 | Quick connecting device for punch top and mandril of perforator |
| CN201357166Y (en) * | 2009-03-03 | 2009-12-09 | 安徽天大石油管材股份有限公司 | Core rod of tube rolling machine |
| CN204122461U (en) * | 2014-07-30 | 2015-01-28 | 中国重型机械研究院股份公司 | A kind of mandrel stem of large-scale double-roller cold pilger mill |
-
2014
- 2014-07-30 CN CN201410368664.3A patent/CN104117540B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1950938A (en) * | 1932-02-23 | 1934-03-13 | Nat Tube Co | Piercing point |
| JPH09271835A (en) * | 1996-04-05 | 1997-10-21 | Sanyo Special Steel Co Ltd | Hot extrusion mandrel of tube with internal fin |
| CN101224469A (en) * | 2008-02-01 | 2008-07-23 | 山西创奇实业有限公司 | Mobile mandril cooling and lubricating device |
| CN201357166Y (en) * | 2009-03-03 | 2009-12-09 | 安徽天大石油管材股份有限公司 | Core rod of tube rolling machine |
| CN101559436A (en) * | 2009-05-20 | 2009-10-21 | 太原重工股份有限公司 | Quick connecting device for punch top and mandril of perforator |
| CN204122461U (en) * | 2014-07-30 | 2015-01-28 | 中国重型机械研究院股份公司 | A kind of mandrel stem of large-scale double-roller cold pilger mill |
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| Publication number | Publication date |
|---|---|
| CN104117540A (en) | 2014-10-29 |
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