CN104117540A - Core rod of large dual-roller cold pilgering mill - Google Patents
Core rod of large dual-roller cold pilgering mill Download PDFInfo
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- CN104117540A CN104117540A CN201410368664.3A CN201410368664A CN104117540A CN 104117540 A CN104117540 A CN 104117540A CN 201410368664 A CN201410368664 A CN 201410368664A CN 104117540 A CN104117540 A CN 104117540A
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- rod
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- core rod
- roller cold
- hand member
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Abstract
The invention belongs to the field of metallurgical machines, and particularly relates to a core rod of a large dual-roller cold pilgering mill. The core rod sequentially comprises a left connector, a spline shaft, a plurality of core rod bodies and a right connector, wherein the left connector is used for being connected with a core rod trolley of the large dual-roller cold pilgering mill, the spline shaft is connected with a rotary feeding device and used for driving the core rod bodies to rotate, a rolling tool is installed on the right connector, the left connector, the spline shaft, the core rod bodies and the right connector are located through a stopping opening to be then connected through bolts, and flat keys are arranged at the positions of the connecting faces and used for transmitting torque. The core rod is simple and reliable in structure, convenient to disassemble and assemble, capable of reliably transmitting the rotating motion and capable of being suitable for the large side feeding dual-roller cold pilgering mill which drives the core rod to rotate.
Description
Technical field
The invention belongs to metallurgical machinery equipment field, 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 is arranged on mandrel stem dolly and is provided with draw-in groove or gear, drive mandrel stem revolution by revolution feed mechanism, when rolling, axial rolling force is delivered to mandrel stem clamp mechanism by mandrel stem, and mandrel stem need to possess certain strength and stiffness, mandrel stem length is generally 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, mandrel stem diameter and the weight of Large Scale Cold tube rolling machine are all larger, adopt the inconvenient screw thread of thread connection form 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
One of object of the present invention is relatively to waste time and energy when overcoming existing mandrel stem dismounting, the problem that even cannot dismantle.
Two of object of the present invention is that the draw-in groove or the gear forms that overcome existing mandrel stem afterbody are not suitable for the rotating problem of large-scale side charging double-roller cold pilger mill driving mandrel stem.
For this reason, the invention provides a kind of mandrel stem of large-scale double-roller cold pilger mill, comprise successively the left joint for connecting double-roller cold pilger mill mandrel stem dolly, the body of rod that connects left joint and connecting-rod body and for the right connector of rolling tool is installed, between described left joint and the body of rod, be bolted splined shaft, the described body of rod is by multiple plug bodies of rod with bolts forming 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 that connect is respectively recessed seam and male half coupling.
The above-mentioned recessed seam matching and male half coupling all offer the keyway of docking, in this keyway, flat key are installed.
The left end side of the left end side of the right-hand member side of described left joint, the left end side of splined shaft and right-hand member side, the plug body of rod and right-hand member side, right connector is all circumferentially 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, circumferentially fix by bolt-connection, simple and reliable for structure, easy accessibility, and the gyration of energy reliable delivery, can be applicable to the revolution of large-scale side charging double-roller cold pilger mill driving mandrel stem.
Below with reference to accompanying drawing, the present invention is described in further details.
Brief description of the drawings
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, mandrel stem diameter and the weight of Large Scale Cold tube rolling machine are all larger, adopt the inconvenient screw thread of thread connection form 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, comprise successively the left joint 1 for connecting double-roller cold pilger mill mandrel stem dolly, the body of rod that connects left joint 1 and connecting-rod body and for the right connector 3 of rolling tool is installed, between described left joint 1 and the body of rod, be bolted and be useful on the rotating splined shaft 4 of connection revolving feed device driving mandrel stem, the described body of rod is by multiple plug bodies of rod 2 with bolts forming in turn.
In order to realize one of object: when overcoming existing mandrel stem dismounting, relatively waste time and energy, the problem that even cannot dismantle.The present invention abandons thread connection of the prior art or Type of Welding, form with bolts, in the right-hand member side of left joint 1, the left end side of the left end side of the left end side of splined shaft 4 and right-hand member side, the plug body of rod 2 and right-hand member side, right connector 3 is all circumferentially evenly distributed with the rectangular recess of same number, and on rectangular recess sidewall, have the bolt hole that is communicated with each end face, can conveniently be connected and installed two adjacent parts by bolt.
And the left end end face at the left end end face of the left end end face of the right-hand member end face of left joint 1, 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 for aiming at the seam 5 of centering centering, and the seam 5 of two end faces that connect 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-assemblings can be linked together.
The above-mentioned recessed seam 8 matching and male half coupling 7 all offer the keyway of docking, and flat key 6 is installed in this keyway, and this flat key 6 is mainly used in transmitting torque, make total unitary rotation in rotation process, and bolt is also had to certain protective effect.The keyway here also can be arranged on other circumferential positions of end, only otherwise overlapping with rectangular recess.
In order to realize two of object: the draw-in groove or the gear forms that overcome existing mandrel stem afterbody are not suitable for the rotating problem of large-scale side charging double-roller cold pilger mill driving mandrel stem.The present invention has added splined shaft 4 in structure, and mandrel stem coordinates with the internal spline of revolution feed mechanism 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 to illustrate of the present invention, does not form the restriction to protection scope of the present invention, within the every and same or analogous design of the present invention all belongs to protection scope of the present invention.
Claims (4)
1. the mandrel stem of a large-scale double-roller cold pilger mill, comprise successively the left joint (1) for connecting double-roller cold pilger mill mandrel stem dolly, the body of rod that connects left joint (1) and connecting-rod body and for the right connector (3) of rolling tool is installed, it is characterized in that: between described left joint (1) and the body of rod, be bolted splined shaft (4), the described body of rod is by multiple plug bodies of rod (2) with bolts forming in turn.
2. the mandrel stem of large-scale double-roller cold pilger mill as claimed in claim 1, it is characterized in that: 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 connect two end faces on seam (5) be respectively recessed seam (8) and male half coupling (7).
3. the mandrel stem of large-scale double-roller cold pilger mill as claimed in claim 2, is characterized in that: the recessed seam (8) matching and male half coupling (7) all offer the keyway of docking, and flat key (6) is installed in this keyway.
4. 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-hand member side of described left joint (1), the left end side of splined shaft (4) and right-hand member side, the plug body of rod (2) and right-hand member side, right connector (3) is all circumferentially evenly distributed with the rectangular recess of same number, and on rectangular recess sidewall, have the bolt hole that is 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 |
|---|---|
| CN104117540A true CN104117540A (en) | 2014-10-29 |
| CN104117540B CN104117540B (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104117540B (en) | 2016-03-16 |
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