CN205008387U - Reinforce cooling type seamless steel pipe ejector pin - Google Patents
Reinforce cooling type seamless steel pipe ejector pin Download PDFInfo
- Publication number
- CN205008387U CN205008387U CN201520739685.1U CN201520739685U CN205008387U CN 205008387 U CN205008387 U CN 205008387U CN 201520739685 U CN201520739685 U CN 201520739685U CN 205008387 U CN205008387 U CN 205008387U
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- China
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- push rod
- cooling water
- seamless steel
- water pipe
- steel pipe
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Abstract
The utility model provides a reinforce cooling type seamless steel pipe ejector pin, including the ejector pin body, the connection is at the top and the condenser tube of this end of body of ejector pin, be provided with the enhancing heat emission groove on the ellipse toper inner chamber wall of top, external screw thread and spacing retainer plate fixed mounting are connected to the passing through of condenser tube, and this is internal at the ejector pin, form a return water cavity between ejector pin body and the condenser tube, it has the return water hole to open in the axial of the linkage segment of top, it has the apopore to open in the axial of spacing retainer plate, the inner chamber of condenser tube one end and top leads to mutually, condenser tube's the other end and outside water source communicate with each other even. Use the utility model discloses making the flow of cooling water receive sluggish restraint, having increased heat transfer area simultaneously, the heat with the top that the cooling water of the perforation ejector pin inner chamber of flowing through can be better is carry over out of to make the ejector pin go on under an environment microthermal relatively, has accelerated the back flow velocity of cooling water in the ejector pin, improved the stand wear and tear rate of top, greatly reduced the manufacturing cost of enterprise.
Description
Technical field:
The utility model relates to the aid making seamless steel pipe, particularly relates to seamless steel pipe perforation push rod.
Background technology:
In seamless steel tube production, perforation push rod plays very important effect, existing perforation push rod comprises top, push rod body and cooling water pipe, push rod body is an open circles mast, one end periphery of push rod body is provided with connection internal thread, come directly towards and closely spun by the top external screw thread of linkage section and the connection internal thread of push rod body, the maximum gauge of top equals the outside diameter of the body of rod, and cooling water pipe is sleeved in the inner circle of push rod body.Top is the key tool in seamless steel tube production.The quality of top quality, the length in service life, directly affects the Yield and quality of steel pipe's production and the economic benefit of enterprise.Solid pipe billet, piercing in seamless steel pipe process, is made hollow hollow billet by top, and the distortion of metal is mainly carried out on top.The working condition of perforating head is quite severe, not only will bear powerful axial compressive force, also will overcome the powerful distortion friction produced between inwall.Thus can think, perforating head works under low-cycle fatigue condition, and thus under its condition of high temperature, wearing and tearing are scrapped is the main cause affecting service life.
Existing top in use, need to overcome the powerful frictional force produced between steel pipe inner wall, and need the temperature of the solid pipe billet of perforation quite high, work under high temperature like this and huge frictional force for a long time, the temperature of top is very high, top is easy to wearing and tearing, for ensureing the quality of product, to repeatedly detect top or change, so not only reduce the production efficiency of enterprise, improve again the production cost of enterprise, also cause the ratio of briquetting of existing one step shaping seamless steel pipe not high, inboard wall of tube body is rough simultaneously.Existing top inner chamber is an ellipse conical cavity, cooling water enters in the cavity of top from cooling water pipe, back-flow velocity slowly, new cooling water cannot be very fast enter top cavity in, its heat transfer work efficiency of existing top is low, reason is: its pipe structure is single, the time that cooling water is heated is too short and cause heat to pass in time, the cooling water of top inner chamber is along the long backflow of straight line vertically in top, need to overcome new cooling water resistance, back-flow velocity in push rod slowly, therefore, the heat of top cannot fully be taken out of by the cooling water in top, and cooling water pipe rotates along with the rotation of the body of rod in the push rod body of rod, clash into body of rod inwall always, damage is to a certain degree caused to the push rod body of rod, so must undergo technological transformation to push rod for the problems referred to above.For solving this defect, the applicant, through studying intensively, devises a kind of strengthening cooling type seamless steel pipe perforation push rod.
Utility model content:
The purpose of this utility model is to provide a kind of strengthening cooling type seamless steel pipe push rod, its serviceability is more superior than like product, under equal ambient temperature condition, the good stability of this push rod, promote the cooling effect of top pierced billet process, effectively can promote and come directly towards service life, be conducive to perforation quality and improve.
The technical scheme that the utility model is taked is as follows:
A kind of strengthening cooling type seamless steel pipe push rod, comprise push rod body, be connected to the top of push rod body end and be sleeved on the intrinsic cooling water pipe of push rod, it is characterized in that: on the ellipse conical internal cavity wall of top, be provided with enhance heat groove, the linkage section endoporus of top is provided with connection internal thread, be provided with and the connection external screw thread being connected internal thread and matching at one end outer round surface of cooling water pipe, one end of cooling water pipe is connected on the connection internal thread of top by connecting external thread rotary, the other end of cooling water pipe is fixedly mounted on the afterbody of push rod body by spacing retainer plate, the external diameter of spacing retainer plate is equal with the internal diameter of push rod body, the internal diameter of spacing retainer plate is equal with the external diameter of cooling water pipe, spacing retainer plate is installed in the gap between push rod body and cooling water pipe, a backwater cavity is formed between push rod body and cooling water pipe, the central axis of cooling water pipe and the central axes of push rod body, backwater hole is had in the axis of the linkage section of top, inner chamber and the backwater cavity of top are interlinked by backwater hole, apopore is had in the axis of spacing retainer plate, backwater cavity is interlinked by apopore and the external world, the inner chamber of cooling water pipe one end and top interlinks, the other end and the external water source of cooling water pipe interlink.
Further, enhance heat groove is had at the ellipse conical internal cavity wall circumference spaced set of top.
Further, enhance heat groove is had at the radial spaced set of the ellipse conical internal cavity wall of top.
Further, described enhance heat groove is deep-slotted chip breaker or V-shaped groove.
Further, at least three backwater holes are equidistantly had in the axis of the linkage section of top.
Further, six backwater holes are equidistantly had in the axis of the linkage section of top.
Further, at least three apopores are equidistantly had in the axis of spacing retainer plate.
Further, six apopores are equidistantly had in the axis of spacing retainer plate.
Further, the minimum wall thickness (MINI W.) of top is more than or equal to 8 millimeters.
By the ellipse conical internal cavity wall circumference in top or radial direction, enhance heat groove is set, cooling water can be made to move along enhance heat concentrated flow, so just the flowing of cooling water is made to be subject to sluggish constraint, increase heat transfer area simultaneously, the heat of top can better be taken out of by the cooling water flowing through perforation push rod inner chamber, thus perforation push rod is carried out under the environment of a relative low temperature, improve the wear-resistant rate of top, greatly reduce the production cost of enterprise.Backwater hole is had in the axis of the linkage section of top, inner chamber and the backwater cavity of top are interlinked by backwater hole, apopore is had in the axis of spacing retainer plate, backwater cavity is interlinked by apopore and the external world, flow in backwater cavity from backwater hole after so just making cooling water absorb heat in the cavity of top, flowed out by apopore again, accelerate the back-flow velocity of cooling water in push rod, therefore, cooling water heated time in top is long, backflow is fast, fully can take the heat in top out of.Cooling water pipe is connected by internal and external threads and spacing retainer plate is fixedly mounted in push rod body, prevent the inwall of cooling water pipe and the push rod body of rod from clashing into, avoid the damage that cooling water pipe causes the push rod body of rod, extend the service life of push rod, improve perforation quality, save production cost.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
In figure: 1-push rod body; 2-comes directly towards; 3-cooling water pipe; 4-enhance heat groove; The spacing retainer plate of 5-; 6-backwater cavity; 21-backwater hole; 51-apopore.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described.
Embodiment 1: a kind of strengthening cooling type seamless steel pipe push rod, as shown in Figure 1, comprise push rod body 1, the top 2 being connected to push rod body 1 end and the cooling water pipe 3 be sleeved in push rod body 1, arc enhance heat groove 4 is had at the ellipse conical internal cavity wall circumference spaced set of top 2, the minimum wall thickness (MINI W.) of top 2 is more than or equal to 8 millimeters, the linkage section endoporus of top 2 is provided with connection internal thread, be provided with and the connection external screw thread being connected internal thread and matching at one end outer round surface of cooling water pipe 3, one end of cooling water pipe 3 is connected on the connection internal thread of top 2 by connecting external thread rotary, the other end of cooling water pipe 3 is fixedly mounted on the afterbody of push rod body 1 by spacing retainer plate 5, the external diameter of spacing retainer plate 4 is equal with the internal diameter of push rod body 1, the internal diameter of spacing retainer plate 5 is equal with the external diameter of cooling water pipe 3, spacing retainer plate 5 is installed in the gap between push rod body 1 and cooling water pipe 3, a backwater cavity 6 is formed between push rod body 1 and cooling water pipe 3, the central axis of cooling water pipe 3 and the central axes of push rod body 1, the axis of the linkage section in top 2 equidistantly has four backwater holes 21, inner chamber and the backwater cavity 6 of top 2 are interlinked by backwater hole 21, four apopores 51 are equidistantly had in the axis of spacing retainer plate 5, backwater cavity 6 is interlinked with the external world by apopore 51, cooling water pipe 3 one end interlinks with the inner chamber of top 2, the other end and the external water source of cooling water pipe 3 interlink.
Embodiment 2: be with the difference of embodiment 1, has arc enhance heat groove 4 at the radial spaced set of the ellipse conical internal cavity wall of top 2.
Embodiment 3: be with the difference of embodiment 1 and embodiment 2, described enhance heat groove 4 is V-shaped groove.
Strengthening cooling type seamless steel pipe push rod embodiment described in the utility model is not limited to example, also has the function replacing structures such as a lot, as long as adopt all technical schemes of technical thought of the present utility model all to belong to protection domain of the present utility model.
Claims (9)
1. a strengthening cooling type seamless steel pipe push rod, comprise push rod body (1), the top (2) being connected to push rod body (1) end and the cooling water pipe (3) be sleeved in push rod body (1), it is characterized in that: on the ellipse conical internal cavity wall of top (2), be provided with enhance heat groove (4), the linkage section endoporus of top (2) is provided with connection internal thread, be provided with and the connection external screw thread being connected internal thread and matching at one end outer round surface of cooling water pipe (3), one end of cooling water pipe (3) is connected on the connection internal thread of top (2) by connecting external thread rotary, the other end of cooling water pipe (3) is fixedly mounted on the afterbody of push rod body (1) by spacing retainer plate (5), the external diameter of spacing retainer plate (5) is equal with the internal diameter of push rod body (1), the internal diameter of spacing retainer plate (5) is equal with the external diameter of cooling water pipe (3), spacing retainer plate (5) is installed in the gap between push rod body (1) and cooling water pipe (3), a backwater cavity (6) is formed between push rod body (1) and cooling water pipe (3), the central axis of cooling water pipe (3) and the central axes of push rod body (1), backwater hole (21) is had in the axis of the linkage section of top (2), inner chamber and the backwater cavity (6) of top (2) are interlinked by backwater hole (21), apopore (51) is had in the axis of spacing retainer plate (5), backwater cavity (6) is interlinked with the external world by apopore (51), the inner chamber of cooling water pipe (3) one end and top (2) interlinks, the other end and the external water source of cooling water pipe (3) interlink.
2. strengthen cooling type seamless steel pipe push rod according to claim 1, it is characterized in that: have enhance heat groove (4) at the ellipse conical internal cavity wall circumference spaced set of top (2).
3. strengthen cooling type seamless steel pipe push rod according to claim 1, it is characterized in that: have enhance heat groove (4) at the radial spaced set of the ellipse conical internal cavity wall of top (2).
4., according to the arbitrary described strengthening cooling type seamless steel pipe push rod of claims 1 to 3, it is characterized in that: described enhance heat groove (4) is deep-slotted chip breaker or V-shaped groove.
5. strengthen cooling type seamless steel pipe push rod according to claim 1, it is characterized in that: equidistantly have at least three backwater holes (21) in the axis of the linkage section of top (2).
6. strengthen cooling type seamless steel pipe push rod according to claim 5, it is characterized in that: equidistantly have six backwater holes (21) in the axis of the linkage section of top (2).
7. strengthen cooling type seamless steel pipe push rod according to claim 1, it is characterized in that: equidistantly have at least three apopores (51) in the axis of spacing retainer plate (5).
8. strengthen cooling type seamless steel pipe push rod according to claim 7, it is characterized in that: equidistantly have six apopores (51) in the axis of spacing retainer plate (5).
9. strengthen cooling type seamless steel pipe push rod according to claim 1, it is characterized in that: the minimum wall thickness (MINI W.) of top (2) is more than or equal to 8 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739685.1U CN205008387U (en) | 2015-09-22 | 2015-09-22 | Reinforce cooling type seamless steel pipe ejector pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739685.1U CN205008387U (en) | 2015-09-22 | 2015-09-22 | Reinforce cooling type seamless steel pipe ejector pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205008387U true CN205008387U (en) | 2016-02-03 |
Family
ID=55207015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520739685.1U Expired - Fee Related CN205008387U (en) | 2015-09-22 | 2015-09-22 | Reinforce cooling type seamless steel pipe ejector pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205008387U (en) |
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2015
- 2015-09-22 CN CN201520739685.1U patent/CN205008387U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160203 Termination date: 20210922 |