CN206325945U - The perforation push rod that a kind of anti-perforating steel pipe folds - Google Patents
The perforation push rod that a kind of anti-perforating steel pipe folds Download PDFInfo
- Publication number
- CN206325945U CN206325945U CN201621424953.1U CN201621424953U CN206325945U CN 206325945 U CN206325945 U CN 206325945U CN 201621424953 U CN201621424953 U CN 201621424953U CN 206325945 U CN206325945 U CN 206325945U
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- China
- Prior art keywords
- push rod
- section
- steel pipe
- perforation
- conical surface
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Abstract
The perforation push rod that a kind of anti-perforating steel pipe folds, including push rod body, it is connected to the top of push rod body end and is sleeved on the intrinsic cooling water pipe of push rod, push rod body is made up of importing conical surface section, secondary reshaping section and body of rod section successively, connecting screw hole is provided with the exposed end face for importing conical surface section, the imports end diameter for importing conical surface section is less than export end diameter, the external diameter of secondary reshaping section is identical with the maximum outside diameter come directly towards, body of rod section external diameter is less than the external diameter of secondary reshaping section, imports conical surface section, secondary reshaping section and connecting screw hole coaxial design.The steel pipe interior folding problem caused by push rod top end diameter is more than top diameter is avoided using this perforation push rod, cone angle male cone (strobilus masculinus) and the friction on steel tube inner hole surface are reduced, reducing friction resistance extends the service life of push rod, perforation quality is improved, the production cost of enterprise is greatly reduced.
Description
Technical field：
The utility model is related to the aid for making seamless steel pipe, more particularly to seamless steel pipe perforation push rod.
Background technology：
In seamless steel tube production, perforation push rod plays critically important effect, and existing perforation push rod includes top, push rod sheet
Body and cooling water pipe, push rod body are an open circles mast, and one end periphery of push rod body is provided with connection internal thread,
Top is closely spun by the connection internal thread of the external screw thread and push rod body that come directly towards linkage section, and the maximum gauge of top is equal to bar
The outside diameter of body, cooling water pipe is sleeved in the inner circle of push rod body.Top is the key tool in seamless steel tube production.Top
The quality of head quality, the length of service life directly affects the Yield and quality of steel pipe's production and the economic benefit of enterprise.Top
During seamless steel pipe is pierced, hollow hollow billet is made in solid pipe billet, the deformation of metal is main to be carried out on top.Perforation top
The working condition of head is quite severe, not only to bear powerful axial compressive force, also to overcome the powerful change produced between inwall
Shape friction.Because diameter and the less push rod of wall thickness are often because rigidity is inadequate, larger, increase hair is shaken in perforation procedure
The inside spin and the wall thickness degree of eccentricity of pipe, bundle process push rod rigidity and stability are worn to improve, producer can using diameter and wall thickness compared with
Thick push rod, such perforating head is worked under the conditions of low-cycle fatigue, it is necessary to overcome produced between steel pipe inner wall strong
Big frictional force, and need the temperature of the solid pipe billet of perforation at a relatively high, for a long time in such high temperature and huge frictional force
Lower work, top is easy to abrasion, and the maximum outside diameter come directly towards after the abrasion of top is less than the outside diameter of the push rod body of rod, push rod
Top can touch hollow billet inwall, form steel pipe interior folding defect, to ensure the quality of product, repeatedly top be detected or more
Change, so not only reduce the production efficiency of enterprise, the production cost of enterprise is improved again, while also result in existing one-shot forming
The ratio of briquetting of seamless steel pipe is not high, and inboard wall of tube body is rough.
To solve top wear problem, it is seamless that the applicant discloses a kind of reinforcing cooling type in ZL20152132223
Perforating steel pipe push rod, its performance is more superior than like product, under the conditions of equal ambient temperature, the good stability of the push rod,
The cooling effect of lifting top pierced billet process, can effectively lift top service life, be conducive to perforation quality to improve.But
It is that top is during prolonged use or can wear and tear, if not finding to be changed in time after the abrasion of top, still can makes
The problem of into above-mentioned steel pipe interior folding.
Utility model content：
The purpose of this utility model is to provide the perforation push rod that a kind of anti-perforating steel pipe folds, even in top abrasion
Afterwards, the steel tube inner hole processed by it will not also produce endoporus and fold, and can extend the service life of perforation push rod, prevent existing
Cause the defect that steel tube inner hole folds after the abrasion of in technology because top, the perforation good stability of the push rod is conducive to perforation
The improvement of quality.
The technical scheme that the utility model is taken is as follows：
The perforation push rod that a kind of anti-perforating steel pipe folds, including push rod body, the top for being connected to push rod body end
Be sleeved on the intrinsic cooling water pipe of push rod, be provided with reinforcing radiating groove, cooling water pipe on the ellipse conical internal cavity wall of top
One end be screwed in top, the other end of cooling water pipe seals the afterbody for being fixedly mounted on push rod body by spacing retainer plate
In inner circle, spacing retainer plate is installed in the gap between push rod body and cooling water pipe, between push rod body and cooling water pipe
Form a backwater cavity, the central axis of cooling water pipe and the central axes of push rod body, the linkage section in top
Backwater hole axially is provided with, inner chamber and the backwater cavity of top are interlinked by backwater hole, be provided with out in the axial direction of spacing retainer plate
Water hole, backwater cavity is interlinked by apopore with the external world, and cooling water pipe one end interlinks with the inner chamber come directly towards, cooling water pipe
The other end interlinks with external water source, it is characterized in that：The push rod body is successively by importing conical surface section, secondary reshaping section and the body of rod
Duan Zucheng, is provided with connecting screw hole on the exposed end face for importing conical surface section, and the imports end diameter for importing conical surface section is less than export end
Diameter, the external diameter of secondary reshaping section is identical with the maximum outside diameter come directly towards, and body of rod section external diameter is less than the external diameter of secondary reshaping section, imports
Conical surface section, secondary reshaping section and connecting screw hole coaxial design.
Further, compartment of terrain is provided with cooling bath on conical surface section is imported and extends bulge loop.
Further, the imports end diameter for importing conical surface section is smaller 1~4 millimeter than export end diameter.
Further, the imports end diameter for importing conical surface section is smaller 2~3 millimeters than export end diameter.
Further, the cross sectional shape of the cooling bath is circular arc or V-arrangement.
Further, the cross sectional shape of the cooling bath is circular arc.
Further, the reinforcing radiating groove is deep-slotted chip breaker or V-shaped groove.
Further, at least three backwater holes are circumferentially equally provided with the axial end of the linkage section of top.
Further, at least three apopores are circumferentially equally provided with the axial end of spacing retainer plate.
Further, the minimum wall thickness (MINI W.) of top is more than or equal to 8 millimeters.
Due to improving the structure of push rod body, by push rod body design into by importing conical surface section, secondary reshaping section and the body of rod
Duan Zucheng structure, is provided with connecting screw hole on the exposed end face for importing conical surface section, on conical surface section is imported provided with cooling bath and
Cumulative cambered surface extends bulge loop, and the external diameter of secondary reshaping section is identical with the maximum outside diameter come directly towards, and body of rod section external diameter is less than secondary reshaping
The external diameter of section, connecting screw hole, which is used to install, to be come directly towards, and is imported conical surface section, secondary reshaping section and connecting screw hole coaxial design, is so pushed up
Head, which is arranged on, imports conical surface section front end, even if top abrasion is not changed, and the importing conical surface section and secondary reshaping section of push rod body are
Play top effect, it is to avoid the steel pipe interior folding problem caused by push rod top end diameter is more than top diameter, extend making for push rod
With the life-span, perforation quality is improved, production cost is saved.The male cone (strobilus masculinus) of cone angle is provided with some grooves, it is possible to reduce cone angle
Male cone (strobilus masculinus) and the friction on steel tube inner hole surface, reducing friction resistance, are easy to smoothly heading into for push rod.Pass through the ellipse taper in top
Internal chamber wall circumference is radially arranged reinforcing radiating groove, backwater hole is provided with the axial direction of the linkage section of top, in spacing retainer plate
Apopore axially is provided with, inner chamber and the backwater cavity of top are interlinked by backwater hole, backwater cavity passes through apopore and the external world
Interlink.One is that cooling water can be made along reinforcing radiating groove flowing, and the flowing for so allowing for cooling water is constrained by sluggishness, together
When increase heat transfer area, flowing through the cooling water of perforation push rod inner chamber preferably can take the heat of top out of so that
Perforation push rod is carried out in the environment of a relative low temperature, is improved the wear-resistant rate of top, is greatly reduced the production of enterprise
Cost, two are so that cooling water to be absorbed in the cavity of top after heat flows into backwater cavity from backwater hole, then passes through water outlet
Hole is flowed out, and accelerates back-flow velocity of the cooling water in push rod, therefore, and cooling water heated time length, backflow in top is fast, energy
The heat fully taken out of in top.
Brief description of the drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of push rod body；
In figure：1- push rod bodies；2- comes directly towards；3- cooling water pipes；4- strengthens radiating groove；The spacing retainer plates of 5-；6- backwater is empty
Chamber；11- imports conical surface section；12- secondary reshapings section；13- bodies of rod section；14- connecting screw holes；15- cooling baths；16- extends bulge loop；
21- backwater holes；51- apopores.
Embodiment：
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing.
Embodiment 1：The perforation push rod that a kind of anti-perforating steel pipe folds, as shown in Fig. 1~Fig. 2, including push rod body 1,
It is connected to the top 2 of push rod body end and is sleeved on the intrinsic cooling water pipe 3 of push rod, the push rod body 1 is successively by leading
Enter conical surface section 11, secondary reshaping section 12 and body of rod section 13 to constitute, connecting screw hole is provided with the exposed end face for importing conical surface section 11
14, top 2 is fixedly connected on the exposed end face of push rod body 1 by connecting screw hole 14, and the imports end for importing conical surface section 11 is straight
Footpath is smaller 3 millimeters than export end diameter, and the external diameter of secondary reshaping section 12 is identical with the maximum outside diameter of top 2, and the body of rod 13 external diameters of section are small
In the external diameter of secondary reshaping section 12, conical surface section 11, secondary reshaping section 12 and the coaxial design of connecting screw hole 14 are imported, the conical surface is being imported
Compartment of terrain is provided with cooling bath 15 and extension bulge loop 16 that cross sectional shape is circular arc in section 11, the ellipse conical internal cavity wall in top 2
Circumferential spaced set has arc to strengthen radiating groove 4, and the minimum wall thickness (MINI W.) of top 2 is more than or equal to 8 millimeters, one end of cooling water pipe 3
It is screwed in top 2, the other end of cooling water pipe 3 is fixedly mounted in the afterbody of push rod body 1 by the sealing of spacing retainer plate 5
In circle, spacing retainer plate 5 is installed in the gap between push rod body 1 and cooling water pipe 3, push rod body 1 and cooling water pipe 3 it
Between form a backwater cavity 5, the central axis of cooling water pipe 3 and the central axes of push rod body 1, the company in top 2
The axial direction for connecing section is equidistantly provided with four backwater holes 4, and the inner chamber of top 2 is interlinked with backwater cavity 6 by backwater hole 4, in limit
The axial direction of position retainer plate 5 is equidistantly provided with four apopores 51, and backwater cavity 6 is interlinked by apopore 51 with the external world, cooling
The inner chamber of the one end of water pipe 3 and top 2 interlinks, and the other end and the external water source of cooling water pipe 3 interlink.
Embodiment 2：Difference with embodiment 1 is that the ellipse conical internal cavity wall radial direction spaced set in top 2 has
Arc strengthens radiating groove 4.
The perforation push rod embodiment that anti-perforating steel pipe described in the utility model folds is not limited to example, also has a lot
Etc. function replacing structure, as long as belonging to protection of the present utility model using all technical schemes of technical thought of the present utility model
Scope.
Claims (10)
1. the perforation push rod that a kind of anti-perforating steel pipe folds, including push rod body (1), the top for being connected to push rod body end
(2) and it is sleeved on the intrinsic cooling water pipe of push rod (3), reinforcing radiating groove is provided with the ellipse conical internal cavity wall of top (2)
(4), one end of cooling water pipe (3) is screwed in top (2), and the other end of cooling water pipe (3) is sealed by spacing retainer plate (5)
In the afterbody inner circle for being fixedly mounted on push rod body (1), spacing retainer plate (5) is installed on push rod body (1) and cooling water pipe (3)
Between gap in, a backwater cavity (6) is formed between push rod body (1) and cooling water pipe (3), in cooling water pipe (3)
The central axes of heart axis and push rod body (1), backwater hole (21) is provided with the axial direction of the linkage section of top (2), is come directly towards
(2) inner chamber is interlinked with backwater cavity (6) by backwater hole (21), and apopore is provided with the axial direction of spacing retainer plate (5)
(51), backwater cavity (6) is interlinked by apopore (51) with the external world, and cooling water pipe (3) one end is communicated with coming directly towards the inner chamber of (2)
Even, the other end of cooling water pipe (3) interlinks with external water source, it is characterized in that：The push rod body (1) is successively by the importing conical surface
Section (11), secondary reshaping section (12) and body of rod section (13) composition, provided with connection spiral shell on the exposed end face for importing conical surface section (11)
Hole (14), the imports end diameter for importing conical surface section (11) is less than export end diameter, external diameter and the top (2) of secondary reshaping section (12)
Maximum outside diameter it is identical, the body of rod section (13) external diameter be less than secondary reshaping section (12) external diameter, import the conical surface section (11), secondary reshaping
Section (12) and connecting screw hole (14) coaxial design.
2. the perforation push rod that anti-perforating steel pipe folds according to claim 1, it is characterized in that：On conical surface section (11) is imported
Compartment of terrain is provided with cooling bath (15) and extension bulge loop (16).
3. the perforation push rod that anti-perforating steel pipe folds according to claim 1, it is characterized in that：Import leading for conical surface section (11)
Enter to hold diameter smaller 1~4 millimeter than export end diameter.
4. the perforation push rod that anti-perforating steel pipe folds according to claim 3, it is characterized in that：Import leading for conical surface section (11)
Enter to hold diameter smaller 2~3 millimeters than export end diameter.
5. the perforation push rod that anti-perforating steel pipe folds according to claim 1, it is characterized in that：Section of the cooling bath (15)
Face is shaped as circular arc or V-arrangement.
6. the perforation push rod that anti-perforating steel pipe folds according to claim 5, it is characterized in that：Section of the cooling bath (15)
Face is shaped as circular arc.
7. the perforation push rod that anti-perforating steel pipe folds according to claim 1, it is characterized in that：The reinforcing radiating groove (4)
For deep-slotted chip breaker or V-shaped groove.
8. the perforation push rod that anti-perforating steel pipe folds according to claim 1, it is characterized in that：Linkage section in top (2)
Axial end on circumferentially equally be provided with least three backwater holes (21).
9. the perforation push rod that anti-perforating steel pipe folds according to claim 1, it is characterized in that：In spacing retainer plate (5)
At least three apopores (51) are circumferentially equally provided with axial end.
10. the perforation push rod that anti-perforating steel pipe folds according to claim 1, it is characterized in that：Come directly towards the minimum wall thickness (MINI W.) of (2)
More than or equal to 8 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621424953.1U CN206325945U (en) | 2016-12-22 | 2016-12-22 | The perforation push rod that a kind of anti-perforating steel pipe folds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621424953.1U CN206325945U (en) | 2016-12-22 | 2016-12-22 | The perforation push rod that a kind of anti-perforating steel pipe folds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206325945U true CN206325945U (en) | 2017-07-14 |
Family
ID=59291860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621424953.1U Expired - Fee Related CN206325945U (en) | 2016-12-22 | 2016-12-22 | The perforation push rod that a kind of anti-perforating steel pipe folds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206325945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112676350A (en) * | 2020-12-23 | 2021-04-20 | 大冶特殊钢有限公司 | Ejector rod for perforation and preparation method of ejector rod |
-
2016
- 2016-12-22 CN CN201621424953.1U patent/CN206325945U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112676350A (en) * | 2020-12-23 | 2021-04-20 | 大冶特殊钢有限公司 | Ejector rod for perforation and preparation method of ejector rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170714 Termination date: 20211222 |