CN104148394B - A kind of mandrel stem clamping device of large-scale side charging double-roller cold pilger mill - Google Patents
A kind of mandrel stem clamping device of large-scale side charging double-roller cold pilger mill Download PDFInfo
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- CN104148394B CN104148394B CN201410368777.3A CN201410368777A CN104148394B CN 104148394 B CN104148394 B CN 104148394B CN 201410368777 A CN201410368777 A CN 201410368777A CN 104148394 B CN104148394 B CN 104148394B
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Abstract
The invention belongs to field of metallurgical mechanical equipment, be specifically related to a kind of mandrel stem clamping device of large-scale side charging double-roller cold pilger mill, comprise mandrel stem chuck, the chuck base of mandrel stem chuck is provided with chuck base slideway, chuck base slideway is provided with mandrel stem dolly, the outer of chuck base slideway is movably installed with the gate base of gate; Have deep trouth in the middle part of mandrel stem dolly, be vertically provided with wedge in this deep trouth, the front end of mandrel stem dolly is provided with the splined shaft connecting mandrel stem; Vertically be provided with gate above gate base, the upper end of gate connects clamping cylinder, and the bottom of gate is ramp structure, and this inclined-plane is relative with the inclined-plane of wedge and parallel to each other.Solve the mandrel stem clamp system meeting serious curtailment bearing life overcoming shift fork form in prior art, and be not suitable for the problem of large-scale side charging double-roller cold pilger mill, there is composition and simplify, characteristics of compact layout, keep in repair easy to adjustization, be easy to the advantages such as Automated condtrol.
Description
Technical field
The invention belongs to field of metallurgical mechanical equipment, be specifically related to a kind of mandrel stem clamping device of large-scale side charging double-roller cold pilger mill.
Background technology
Mandrel stem clamp system is the important component part of double-roller cold pilger mill, rolling tool plug is arranged on mandrel stem head, during rolling, mandrel stem clamp system needs reliable grip mandrel stem, make it must not along rolling centerline direction play, mandrel stem clamp system bears the axial rolling force acted on mandrel stem, when carrying out axis to mandrel stem position and finely tuning, mandrel stem chuck on mandrel stem clamp system can move horizontally along on roll line direction, finally makes plug be positioned at rolling position accurately.The mandrel stem clamp system that in prior art, double-roller cold pilger mill adopts, many employings shift fork form promotes sliding sleeve and realizes clamping, axial rolling force is born by clamp system bearing completely, the axial rolling force of large-scale two roller cold rolled tube milling trains is very big, meeting serious curtailment bearing life, in addition, the mandrel stem clamp system of shift fork form is not suitable for large-scale side charging double-roller cold pilger mill yet, adjustment, use very inconvenience.
Summary of the invention
The object of the invention is to overcome the mandrel stem clamp system meeting serious curtailment bearing life of shift fork form in prior art, and be not suitable for the problem of large-scale side charging double-roller cold pilger mill.
For this reason, the invention provides a kind of mandrel stem clamping device of large-scale side charging double-roller cold pilger mill, comprise mandrel stem chuck, the chuck base of mandrel stem chuck is provided with chuck base slideway, chuck base slideway is provided with mandrel stem dolly, the outer of chuck base slideway is movably installed with the gate base of gate;
Have deep trouth in the middle part of mandrel stem dolly, be vertically provided with wedge in this deep trouth, the front end of mandrel stem dolly is provided with the splined shaft connecting mandrel stem;
Vertically be provided with gate above gate base, gate is through the upper surface of gate base, and the upper end of gate connects clamping cylinder, and the bottom of gate is ramp structure, and this inclined-plane is relative with the inclined-plane of wedge and parallel to each other.
The side of described gate base is connected with two locking cylinders, and opposite side is connected with two worm screw lifts, and described locking cylinder and worm screw lift are all separately fixed on chuck base.
Described mandrel stem clamping device also comprises mandrel stem drag-out device, mandrel stem chuck is arranged on one end of mandrel stem drag-out device, mandrel stem drag-out device is provided with mandrel stem drag-out device base slideway, this mandrel stem drag-out device base slideway is connected with chuck base slideway.
Be provided with chain hinge pin installing plate bottom described mandrel stem dolly, the cross-under of chain hinge pin installing plate has driving chain, the output shaft of this driving chain solderless wrapped connection reductor, and described reductor connects motor.
Described worm screw lift is provided with encoder.
Beneficial effect of the present invention: the mandrel stem clamping device of this large-scale side charging double-roller cold pilger mill of the present invention, wedge structure is utilized to carry out the clamping of mandrel stem, and locking cylinder and worm screw lift can be utilized to finely tune, the composition of cold pilger mill is simplified, characteristics of compact layout, keep in repair easy to adjustization, be easy to Automated condtrol, overcome adjustment inconvenience in prior art, clamp the problems such as unreliable, and the accuracy of finely tuning can be ensured, axial rolling force is born by gate, is not delivered on bearing, can greatly improve bearing life.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is that mandrel stem clamping device is totally illustrated.
Fig. 2 is the structural representation of mandrel stem dolly.
Fig. 3 is clamping structure schematic diagram.
Fig. 4 is mandrel stem clamping device top view.
Description of reference numerals: 1, mandrel stem drag-out device; 2, mandrel stem dolly; 3, mandrel stem chuck; 4, splined shaft; 5, wedge; 6, chain hinge pin installing plate; 7, chuck base; 8, chuck base slideway; 9, locking cylinder; 10, gate base; 11, gate; 12, clamping cylinder; 13, worm screw lift; 14, reductor; 15, motor; 16, mandrel stem drag-out device base slideway.
Detailed description of the invention
In order to overcome the mandrel stem clamp system meeting serious curtailment bearing life of shift fork form in prior art, and be not suitable for the problem of large-scale side charging double-roller cold pilger mill.The invention provides a kind of mandrel stem clamping device of large-scale side charging double-roller cold pilger mill, as shown in Figure 1 and Figure 4, comprise mandrel stem chuck 3, the chuck base 7 of mandrel stem chuck 3 is provided with chuck base slideway 8, chuck base slideway 8 is provided with mandrel stem dolly 2, the outer of chuck base slideway 8 is movably installed with the gate base 10 of gate; As shown in Figure 2, have deep trouth in the middle part of mandrel stem dolly 2, be vertically provided with wedge 5 in this deep trouth, the front end of mandrel stem dolly 2 is provided with the splined shaft 4 connecting mandrel stem; Vertically be provided with gate 11 above gate base 10, gate 11 is through the upper surface of gate base 10, and the upper end of gate 11 connects clamping cylinder 12, and the bottom of gate 11 is ramp structure, and this inclined-plane is relative with the inclined-plane of wedge 5 and parallel to each other.
Mandrel stem is arranged on mandrel stem dolly 2 by splined shaft 4, mandrel stem dolly 2 can move back and forth along rolling centerline on chuck base slideway 8, mandrel stem dolly 2 carries mandrel stem and slides in gate base 10 at chuck base slideway 8, now under clamping cylinder 12 impetus, gate 11 moves downward, the inclined-plane of gate 11 bottom can enter the deep trouth on mandrel stem dolly 2 and carry out cooperatively interacting with the inclined-plane of wedge 5 and extrude, until fit completely with wedge 5, now achieve the clamping of mandrel stem dolly 2, namely the clamping of mandrel stem is realized, axial rolling force is born by gate completely.
Further, in order to realize fine setting, as shown in Figure 3, be connected with two locking cylinders 9 in the side of gate base 10, opposite side is connected with two worm screw lifts 13, and described locking cylinder 9 and worm screw lift 13 are all separately fixed on chuck base 7.
Gate base is placed on chuck base slideway 8, gate base 10 can move along rolling centerline direction, worm screw lift 13 is for gate base 10 fine position, gate base 10 is compressed with locking cylinder 9 after adjusting to the right place, worm screw lift 13 is provided with encoder, and guarantee to rotate synchronously, locking cylinder 9 is by proportional valve control, guarantee that locking cylinder 9 displacement is synchronous, namely achieve the fine setting of mandrel stem.
The mandrel stem clamping device of this large-scale side charging double-roller cold pilger mill also comprises mandrel stem drag-out device 1, mandrel stem chuck 3 is arranged on one end of mandrel stem drag-out device 1, mandrel stem drag-out device 1 is provided with mandrel stem drag-out device base slideway 16, this mandrel stem drag-out device base slideway 16 is connected with chuck base slideway 8.
And be provided with chain hinge pin installing plate 6 bottom mandrel stem dolly 2, chain hinge pin installing plate 6 cross-under has driving chain, the output shaft of this driving chain solderless wrapped connection reductor 14, and described reductor 14 connects motor 15.
Mandrel stem drag-out device 1 plays the effect of supporting-core bar dolly 2, primary structure is the mandrel stem drag-out device base slideway 16 on frame and its surface, and this slideway chuck base slideway 8 connects can make dolly slide into chuck base slideway 8 from mandrel stem drag-out device base slideway 16.Be placed on by the mandrel stem dolly 2 that mandrel stem is housed on mandrel stem drag-out device base slideway 16, mandrel stem dolly 2 moves in the gate base 10 on chuck base slideway 8 can carry out clamping operation.
The driving chain that the power of the movement of mandrel stem dolly 2 is installed by its chain hinge pin installing plate 6 provides, motor 15 makes driving chain circulation transmission by reductor 14, then mandrel stem dolly 2 can be made to move on mandrel stem drag-out device base slideway 16 and chuck base slideway 8, until arrive best clamped position.
In sum, the mandrel stem clamping device of this large-scale side charging double-roller cold pilger mill of the present invention, adopts wedge structure, utilizes the axial rolling force that gate bears to replace original bearing, have a protective effect to bearing; Utilize the fine setting that locking cylinder and worm screw lift can realize clamping device; Single unit system composition is simplified, and characteristics of compact layout, keeps in repair easy to adjustization, is easy to Automated condtrol, overcomes adjustment inconvenience in prior art, clamps the problems such as unreliable.
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 (5)
1. the mandrel stem clamping device of one kind large-scale side charging double-roller cold pilger mill, comprise mandrel stem chuck (3), the chuck base (7) of mandrel stem chuck (3) is provided with chuck base slideway (8), chuck base slideway (8) is provided with mandrel stem dolly (2), it is characterized in that: the outer of chuck base slideway (8) is movably installed with the gate base (10) of gate;
There is deep trouth at mandrel stem dolly (2) middle part, is vertically provided with wedge (5) in this deep trouth, and the front end of mandrel stem dolly (2) is provided with the splined shaft (4) connecting mandrel stem;
Gate base (10) top is vertically provided with gate (11), gate (11) is through the upper surface of gate base (10), the upper end of gate (11) connects clamping cylinder (12), the bottom of gate (11) is ramp structure, and this inclined-plane is relative and parallel to each other with the inclined-plane of wedge (5).
2. the mandrel stem clamping device of large-scale side charging double-roller cold pilger mill as claimed in claim 1, it is characterized in that: the side of described gate base (10) is connected with two locking cylinders (9), opposite side is connected with two worm screw lifts (13), and described locking cylinder (9) and worm screw lift (13) are all separately fixed on chuck base (7).
3. the mandrel stem clamping device of large-scale side charging double-roller cold pilger mill as claimed in claim 1, it is characterized in that: described mandrel stem clamping device also comprises mandrel stem drag-out device (1), mandrel stem chuck (3) is arranged on one end of mandrel stem drag-out device (1), mandrel stem drag-out device (1) is provided with mandrel stem drag-out device base slideway (16), this mandrel stem drag-out device base slideway (16) is connected with chuck base slideway (8).
4. the mandrel stem clamping device of large-scale side charging double-roller cold pilger mill as claimed in claim 1, it is characterized in that: described mandrel stem dolly (2) bottom is provided with chain hinge pin installing plate (6), chain hinge pin installing plate (6) cross-under has driving chain, the output shaft of this driving chain solderless wrapped connection reductor (14), described reductor (14) connects motor (15).
5. the mandrel stem clamping device of large-scale side charging double-roller cold pilger mill as claimed in claim 2, is characterized in that: described worm screw lift (13) is provided with encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368777.3A CN104148394B (en) | 2014-07-30 | 2014-07-30 | A kind of mandrel stem clamping device of large-scale side charging double-roller cold pilger mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368777.3A CN104148394B (en) | 2014-07-30 | 2014-07-30 | A kind of mandrel stem clamping device of large-scale side charging double-roller cold pilger mill |
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| Publication Number | Publication Date |
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| CN104148394A CN104148394A (en) | 2014-11-19 |
| CN104148394B true CN104148394B (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410368777.3A Active CN104148394B (en) | 2014-07-30 | 2014-07-30 | A kind of mandrel stem clamping device of large-scale side charging double-roller cold pilger mill |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2771800A (en) * | 1952-03-06 | 1956-11-27 | United States Steel Corp | Plug rolling mill |
| CN202411097U (en) * | 2012-01-13 | 2012-09-05 | 浙江凯泰机械制造有限公司 | Internal lubricating mechanism of core bar of middle-feeding cold pipe mill |
| CN103286134A (en) * | 2013-06-14 | 2013-09-11 | 中国重型机械研究院股份公司 | Core rod clamping mechanism of double-roller cold reducing mill |
| CN203991665U (en) * | 2014-07-30 | 2014-12-10 | 中国重型机械研究院股份公司 | A kind of mandrel stem clamping device of large-scale side charging double-roller cold pilger mill |
-
2014
- 2014-07-30 CN CN201410368777.3A patent/CN104148394B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2771800A (en) * | 1952-03-06 | 1956-11-27 | United States Steel Corp | Plug rolling mill |
| CN202411097U (en) * | 2012-01-13 | 2012-09-05 | 浙江凯泰机械制造有限公司 | Internal lubricating mechanism of core bar of middle-feeding cold pipe mill |
| CN103286134A (en) * | 2013-06-14 | 2013-09-11 | 中国重型机械研究院股份公司 | Core rod clamping mechanism of double-roller cold reducing mill |
| CN203991665U (en) * | 2014-07-30 | 2014-12-10 | 中国重型机械研究院股份公司 | A kind of mandrel stem clamping device of large-scale side charging double-roller cold pilger mill |
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| Publication number | Publication date |
|---|---|
| CN104148394A (en) | 2014-11-19 |
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