CN214639103U - Conical cross rolling perforator - Google Patents
Conical cross rolling perforator Download PDFInfo
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- CN214639103U CN214639103U CN202120570483.4U CN202120570483U CN214639103U CN 214639103 U CN214639103 U CN 214639103U CN 202120570483 U CN202120570483 U CN 202120570483U CN 214639103 U CN214639103 U CN 214639103U
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- compression roller
- perforator
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- conical
- perforation
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Abstract
The utility model discloses a toper is perforator that rolls alternately, include: the frame is provided with a plurality of pairs of compression roller set and a perforation plug in the frame, the compression roller set includes: the compression roller that two upper and lower mirror images set up, the compression roller is the ellipsoid form, is 15 contained angles between the major axis of compression roller and the horizontal symmetry line, is provided with in the frame and can drives the compression roller round self major axis pivoted actuating mechanism, the perforation plug includes: the connecting part is in a circular truncated cone shape and is respectively connected with the conical ejector pin head and the tube bearing part, and the diameter of the tube bearing part is the same as that of the upward protruding part of the conical ejector pin head; the left side and the right side of the perforation core rod are respectively provided with a limiting runner capable of rotating. The utility model has the advantages that: the tube forming quality of the hot-rolled tube blank during piercing can be improved, and the production cost can be reduced.
Description
Technical Field
The utility model relates to a toper is rolling perforator alternately.
Background
In the process of producing the hot-rolled seamless pipe, a pipe pushing mechanism is used in cooperation with a perforator to perform hot piercing on the hot-rolled pipe blank. The perforators currently in common use on the market include: the frame is provided with a plurality of pairs of compression roller group and a perforation plug in the frame, the perforation plug includes: toper top syringe needle and hold a tub portion, hold a tub portion and link to each other with the major diameter end of toper top syringe needle, compression roller set includes: the cylindrical compression rollers are arranged in a mirror image mode from top to bottom, the two cylindrical compression rollers can rotate around respective central axes, the three-roller centering device is arranged on the rack, and the perforated core rod is placed in the three-roller centering device, so that the central axes of the perforated core rod are overlapped with horizontal symmetry lines between the two cylindrical compression rollers, and the central axes of the perforated core rod are perpendicular to the central axes of the cylindrical compression rollers. The hot rolled tube blank is pushed between the cylindrical compression rollers under the action of the tube pushing mechanism, the two cylindrical compression rollers abut against the upper wall and the lower wall of the hot rolled tube blank, then the two cylindrical compression rollers rotate forwards to drive the hot rolled tube blank to move towards the perforation core rod, meanwhile, the three roller shafts on the three-roller centering device rotate simultaneously to drive the perforation core rod to rotate around the central axis of the three roller shafts, the conical ejector pin head on the perforation core rod conducts perforation work on the moving hot rolled tube blank, and the hot rolled tube blank can be sleeved on the pipe bearing portion of the perforation core rod in a sliding mode after being perforated. The perforator of the above structure has the following disadvantages: 1. when the cylindrical press roll is used for conveying the hot rolled pipe blank, only the upper wall and the lower wall of the hot rolled pipe blank are pressed, so that the hot rolled pipe blank is easily extruded and deformed; 2. the conical ejector pin head and the pipe bearing part in the original perforation core rod are of an integrated structure, and the whole perforation core rod needs to be discarded after the conical ejector pin head is damaged, so that the production cost is improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be difficult to the hot rolling pipe billet extrusion deformation, and possess the alternately rolling perforator of toper of split type perforation plug.
In order to achieve the above object, the utility model adopts the following technical scheme: a tapered cross-rolling perforator, comprising: the frame is provided with a plurality of pairs of compression roller set and a perforation plug in the frame, the compression roller set includes: the compression roller that two upper and lower mirror images set up is provided with the three-roller centering device that can bear and fix a position the perforation plug in the frame, and the perforation plug is by three-roller centering device centre gripping back, and the horizontal symmetry line between its axis and two compression rollers coincides mutually, the compression roller is the ellipsoid form, is 15 contained angles between the major axis of compression roller and the horizontal symmetry line, forms the little tubaeform of the big right-hand member of left end between two alignment compression rollers and wears the tube hole, is provided with in the frame and can drives the compression roller round self major axis pivoted actuating mechanism, the perforation plug includes: the connecting part is in a circular truncated cone shape, the small-diameter end of the connecting part is connected with the right end of the conical ejector pin, the large-diameter end of the connecting part is connected with the left end of the pipe bearing part, and the diameter of the pipe bearing part is the same as that of the upward protruding part of the conical ejector pin; the left side and the right side of the perforating core rod are respectively provided with a limiting runner capable of rotating, the side wall of each limiting runner is provided with an arc-shaped groove, and the arc-shaped grooves on the two limiting runners are aligned with the conical perforating holes.
Further, in the conical cross rolling perforator, the conical thimble head is in threaded connection with the connecting portion, the connecting portion is in threaded connection with the pipe holding portion, and the right end of the connecting portion and the left end of the pipe holding portion are both provided with an arc chamfer.
Further, the tapered cross rolling perforator wherein the left end of the tapered tip needle is configured as a curved tip.
Further, in the conical cross rolling perforator, the right end of the pressing roller is set to be a plane, and a rotating shaft is arranged on the plane and connected with the driving mechanism.
Further, in the above-mentioned conical cross rolling perforator, the driving mechanism is a servo motor, and an output shaft of the servo motor is connected to a rotating shaft of the pressure roller through a coupling.
The utility model has the advantages that: after the two ellipsoidal press rolls are arranged at an included angle of 30 degrees, the two ellipsoidal press rolls form a spiral driving force when performing oblique rotation around the long axis of the two ellipsoidal press rolls, so that the hot rolled tube blank can be driven to move towards the direction of the piercing mandrel and can also be driven to rotate, the peripheral walls of the hot rolled tube blank can be extruded by the ellipsoidal press rolls, and the hot rolled tube blank is ensured to be kept cylindrical in the piercing process; the design of the perforating core rod into a split structure is beneficial to saving the cost, and after the conical ejector pin head is scrapped, only the conical ejector pin head needs to be replaced, so that the perforating core rod does not need to be discarded integrally, and the production cost is greatly reduced.
Drawings
Fig. 1 is a schematic structural view of a conical cross rolling perforator according to the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, the conical cross rolling perforator of the present invention comprises: frame 1 is provided with a plurality of pairs of compression roller set and a perforation plug 2 in frame 1, the compression roller set includes: two compression rollers 3 that mirror image set up from top to bottom are provided with the three-roller centering device 10 that can bear and fix a position perforation plug 2 in frame 1, and perforation plug 2 is by the centre gripping back of three-roller centering device 10, and the horizontal symmetry line between its axis and two compression rollers 3 coincides mutually, compression roller 3 is oval form, is 15 contained angles between the major axis of compression roller 3 and the horizontal symmetry line, forms the big little horn shape of right-hand member of left end and wears the pipe hole 31 between two alignment compression rollers 3, and like this, the arcwall face on the compression roller 3 of two oval forms can be in the same direction as smooth and must accept the hot rolled tube blank, is provided with on frame 1 and can drives compression roller 3 round self major axis pivoted servo motor 11 as actuating mechanism, perforation plug 2 includes: the left end of the conical top needle head 21 is arranged to be an arc-shaped top part, the penetrating power can be enhanced by the arc-shaped top part, the thickness of the conical top needle head 21 can be increased, and therefore the high-temperature resistance performance of the conical top needle head is improved. The connecting part 22 is in a circular truncated cone shape, the small-diameter end of the connecting part 22 is in threaded connection with the right end of the conical top needle head 21, the large-diameter end of the connecting part 22 is in threaded connection with the left end of the pipe bearing part 23, the right end of the connecting part 22 and the left end of the pipe bearing part 23 are both provided with arc chamfers, so that the inner wall of a hot-rolled pipe blank cannot be scratched, and the diameter of the pipe bearing part 23 is the same as that of the protruding part 211 on the conical top needle head 21; the left side and the right side of the perforated core rod 2 are respectively provided with a limiting runner 4 capable of rotating, the side wall of each limiting runner 4 is provided with an arc-shaped groove 41, the arc-shaped grooves 41 on the two limiting runners 4 are aligned with the conical perforated holes 31, and the limiting runners 4 can play a role in limiting and assisting in conveying the hot-rolled tube blank clamped between the two compression rollers 3.
In this embodiment, the connection structure between the pressing roller 3 and the servo motor 11 is: the right end of the press roll 3 is set to be a plane, a rotating shaft 32 is arranged on the plane, and the rotating shaft 32 is connected with an output shaft on the servo motor 11 through a coupler 12.
The utility model has the advantages that: after the two ellipsoidal press rolls are arranged at an included angle of 30 degrees, the two ellipsoidal press rolls form a spiral driving force when performing oblique rotation around the long axis of the two ellipsoidal press rolls, so that the hot rolled tube blank can be driven to move towards the direction of the piercing mandrel and can also be driven to rotate, the peripheral walls of the hot rolled tube blank can be extruded by the ellipsoidal press rolls, and the hot rolled tube blank is ensured to be kept cylindrical in the piercing process; the design of the perforating core rod into a split structure is beneficial to saving the cost, and after the conical ejector pin head is scrapped, only the conical ejector pin head needs to be replaced, so that the perforating core rod does not need to be discarded integrally, and the production cost is greatly reduced.
Claims (5)
1. A tapered cross-rolling perforator, comprising: the frame is provided with a plurality of pairs of compression roller set and a perforation plug in the frame, the compression roller set includes: the compression roller that two upper and lower mirror images set up is provided with the three-roller centering device that can bear and fix a position the perforation plug in the frame, and the perforation plug is by the three-roller centering device centre gripping back, and its axis coincides its characterized in that mutually with the horizontal symmetry line between two compression rollers: the compression roller is the ellipsoid form, is 15 contained angles between the major axis of compression roller and the horizontal symmetry line, forms the big little tubaeform perforation hole of right-hand member of left end between two alignment compression rollers, is provided with in the frame and can drives the compression roller round self major axis pivoted actuating mechanism, the perforation plug includes: the connecting part is in a circular truncated cone shape, the small-diameter end of the connecting part is connected with the right end of the conical ejector pin, the large-diameter end of the connecting part is connected with the left end of the pipe bearing part, and the diameter of the pipe bearing part is the same as that of the upward protruding part of the conical ejector pin; the left side and the right side of the perforating core rod are respectively provided with a limiting runner capable of rotating, the side wall of each limiting runner is provided with an arc-shaped groove, and the arc-shaped grooves on the two limiting runners are aligned with the conical perforating holes.
2. The tapered cross-rolling perforator of claim 1 wherein: the conical top needle head is connected with the connecting portion through threads, the connecting portion is connected with the pipe bearing portion through threads, and arc-shaped chamfers are arranged at the right end of the connecting portion and the left end of the pipe bearing portion.
3. The tapered cross rolling perforator according to claim 1 or 2, wherein: the left end of the conical top pinhead is arranged to be an arc top.
4. The tapered cross rolling perforator according to claim 1 or 2, wherein: the right end of the compression roller is arranged to be a plane, a rotating shaft is arranged on the plane, and the rotating shaft is connected with a driving mechanism.
5. The tapered cross-rolling perforator of claim 4 wherein: the driving mechanism is a servo motor, and an output shaft on the servo motor is connected with a rotating shaft on the compression roller through a coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120570483.4U CN214639103U (en) | 2021-03-22 | 2021-03-22 | Conical cross rolling perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120570483.4U CN214639103U (en) | 2021-03-22 | 2021-03-22 | Conical cross rolling perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214639103U true CN214639103U (en) | 2021-11-09 |
Family
ID=78454451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120570483.4U Active CN214639103U (en) | 2021-03-22 | 2021-03-22 | Conical cross rolling perforator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214639103U (en) |
-
2021
- 2021-03-22 CN CN202120570483.4U patent/CN214639103U/en active Active
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