CN111112534A - Third-generation nuclear power coolant pump shell profile forging stepped core rod and application - Google Patents
Third-generation nuclear power coolant pump shell profile forging stepped core rod and application Download PDFInfo
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- CN111112534A CN111112534A CN202010002745.7A CN202010002745A CN111112534A CN 111112534 A CN111112534 A CN 111112534A CN 202010002745 A CN202010002745 A CN 202010002745A CN 111112534 A CN111112534 A CN 111112534A
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- Prior art keywords
- core rod
- nuclear power
- pump shell
- stepped core
- generation nuclear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of pump shell machining of coolant pumps, and discloses a stepped core rod for profile forging of a third-generation nuclear power coolant pump shell. The invention is suitable for a third-generation nuclear power coolant pump shell profiling forging stepped core rod, adopts a non-equal-diameter stepped shaft mode with the diameter of 1130mm and the diameter of 500mm, can realize profiling of different sections of an inner cavity of a pump shell and an inner hole of a straight pipe nozzle, and a conical area is designed between a first shaft body and a second shaft body, so that the pressure borne by the stepped core rod during stamping forming can be reduced, the stepped core rod is matched with the equipment capacity of the existing ten thousand-ton press, the blank can be prevented from being sheared during stamping forming, and the blank is mainly extruded, so that the forming of the straight pipe nozzle part is completed.
Description
Technical Field
The invention relates to the technical field of pump shell processing of a coolant pump, in particular to a stepped core rod for profile forging of a third-generation nuclear power coolant pump shell and application thereof.
Background
The pump casing is a semi-closed hollow casing, the shape of the pump casing is circular or approximately elliptical, the pump casing is provided with nozzles, the shape of the pump casing is irregular, and therefore forging of the swage is quite difficult. In the prior art, a third-generation nuclear power coolant pump shell adopts a scheme of bulk forging without holes, and does not profile the inner cavity of the pump shell and the inner hole and the shape of a straight pipe nozzle, so that the pump shell has the characteristics of low steel ingot utilization rate and long processing period. With the increasing market competition, the original integral forming scheme can not meet the market demand, and the profiling of the inner cavity of the pump shell, the inner hole of the straight pipe nozzle and the appearance also becomes the trend of the subsequent pump shell production. The profiling forging also puts new requirements on the tooling.
Disclosure of Invention
The invention provides a stepped core rod for profile forging of a pump shell of a third-generation nuclear power coolant pump and application thereof, and solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a third generation nuclear power coolant pump case profile modeling is forged and is used ladder plug, is equipped with first axis body including pincers handle, the right side of pincers handle, and the right side of first axis body is equipped with the circular cone district, and the right side in circular cone district is equipped with the second axis body, both sides are equipped with the butt cut plane around pincers handle and the first axis body.
In a preferred embodiment of the present invention, the diameter of the second shaft is 500mm, and the length of the second shaft is 800 mm.
As a preferable technical solution of the present invention, the second shaft body is provided with a 1 ° draft angle at an outer portion thereof.
As a preferred embodiment of the present invention, the single-sided cone angle of the conical region is 55 °.
In a preferred embodiment of the present invention, the diameter of the first shaft body is 1130 mm.
As a preferable technical solution of the present invention, the first shaft body is provided with a 1 ° draft angle at an outer portion thereof.
As a preferable technical scheme of the invention, the total length of the first shaft body and the conical area is 1700 mm.
As a preferable technical scheme of the invention, the opposite cutting plane has a draft angle of 1 degree and a length of 1050 mm.
In a preferred embodiment of the present invention, the diameter of the handle is 1130mm, and the handle has no draft angle.
The stepped core rod for the profile forging of the pump shell of the third-generation nuclear power coolant pump is applied as a profile mold in the profile forging process of the pump shell of the third-generation nuclear power coolant pump.
The invention has the following advantages:
the invention is suitable for a third-generation nuclear power coolant pump shell profiling forging stepped core rod, adopts a non-equal-diameter stepped shaft mode with the diameter of 1130mm and the diameter of 500mm, can realize profiling of different sections of an inner cavity of a pump shell and an inner hole of a straight pipe nozzle, and a conical area is designed between a first shaft body and a second shaft body, so that the pressure borne by the stepped core rod during stamping forming can be reduced, the stepped core rod is matched with the equipment capacity of the existing ten thousand-ton press, the blank can be prevented from being sheared during stamping forming, and the blank is mainly extruded, so that the forming of the straight pipe nozzle part is completed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a stepped core rod for profile forging of a pump casing of a third generation nuclear power coolant pump.
Fig. 2 is a cross-sectional view a-a of fig. 1.
In the figure: 1. a clamp handle; 2. a first shaft body; 3. a conical region; 4. a second shaft body; 5. and (6) facing the plane.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, a third generation nuclear power coolant pump casing profiling forging stepped core rod comprises a clamp handle 1, wherein the diameter of the clamp handle 1 is 1130mm, the clamp handle 1 has no draft angle, and the length can be freely adjusted according to actual conditions; the right side of the clamp handle 1 is provided with a first shaft body 2, the diameter of the first shaft body 2 is 1130mm, the outer part of the first shaft body 2 is provided with 1-degree drawing slope, the right side of the first shaft body 2 is provided with a conical area 3, the single-side taper angle of the conical area 3 is 55 degrees, the stepped shafts are connected through the inclined conical area, the pressure borne by the stepped core rod during punch forming can be reduced, the stepped core rod is matched with the equipment capacity of the existing ten thousand-ton press, the blank can be prevented from being sheared during punch forming, the blank is mainly extruded, the forming of a straight nozzle part is completed, the total length of the first shaft body 2 and the conical area 3 is 1700mm, the right side of the conical area 3 is provided with a second shaft body 4, the diameter of the second shaft body 4 is 500mm, the length is 800mm, the outer part of the second shaft body 4 is provided with 1-degree drawing slope, the front and back two sides of the clamp handle 1 and the first shaft body 2 are provided with opposite-, the length is 1050mm, and the plane direction is consistent with the side nozzle direction, can avoid effectively that the hole leads to the not enough condition of size because of local size inflation when one-way die mould.
The stepped core rod for the third-generation nuclear power coolant pump shell profiling forging is applied as a profiling mold in the third-generation nuclear power coolant pump shell profiling forging process. The method is mainly used for pump shell punch forming and pump shell die forming.
The invention is suitable for a third-generation nuclear power coolant pump shell profile forging stepped core rod, adopts a non-uniform diameter stepped shaft form with the diameter of 1130mm and the diameter of 500mm, can realize profile modeling of different sections of an inner cavity of a pump shell and an inner hole of a straight pipe nozzle, and a conical area 3 is designed between a first shaft body 2 and a second shaft body 4, so that the pressure borne by the stepped core rod during stamping forming can be reduced, the stepped core rod is matched with the equipment capacity of the existing ten thousand-ton press, the blank can be prevented from being sheared during stamping forming, and the blank is mainly extruded, thereby completing the forming of the straight pipe nozzle.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a third generation nuclear power coolant pump case profile modeling is forged and is used ladder plug, its characterized in that, including pincers (1), pincers are equipped with first axis body (2) to the right side of (1), and the right side of first axis body (2) is equipped with cone area (3), and the right side of cone area (3) is equipped with second axis body (4), pincers are equipped with butt flat face (5) to both sides around (1) and first axis body (2).
2. The stepped core rod for the profile forging of the pump shell of the third-generation nuclear power coolant pump and the application of the stepped core rod according to claim 1 are characterized in that the diameter of the second shaft body (4) is 500mm, and the length of the second shaft body (4) is 800 mm.
3. The stepped core rod for the profile forging of the pump shell of the third-generation nuclear power coolant pump of claim 2, characterized in that the outer part of the second shaft body (4) is provided with a 1-degree draft angle.
4. The stepped core rod for profile forging of a pump shell of a third-generation nuclear power coolant pump according to claim 1, characterized in that the single-side taper angle of the conical zone (3) is 55 °.
5. The stepped core rod for profile forging of the pump shell of the third-generation nuclear power coolant pump according to claim 1, characterized in that the diameter of the first shaft body (2) is 1130 mm.
6. The stepped core rod for profiling forging of the pump shell of the third-generation nuclear power coolant pump according to claim 5, wherein the outer part of the first shaft body (2) is provided with a 1-degree draft angle.
7. The stepped core rod for profile forging of a pump shell of a third-generation nuclear power coolant pump according to claim 5 or 6, characterized in that the total length of the first shaft body (2) and the conical area (3) is 1700 mm.
8. The stepped core rod for profile forging of a pump shell of a third-generation nuclear power coolant pump of claim 1, characterized in that the counter-cut plane (5) has a draft angle of 1 degree, and the length of the counter-cut plane (5) is 1050 mm.
9. The stepped core rod for the profile forging of the pump shell of the third-generation nuclear power coolant pump of claim 1, wherein the diameter of the clamp handle (1) is 1130mm, and the clamp handle (1) has no draft angle.
10. The application of the stepped core rod for the contour forging of the pump shell of the third-generation nuclear power coolant pump according to claim 1 is applied as a contour die in the contour forging process of the pump shell of the third-generation nuclear power coolant pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010002745.7A CN111112534A (en) | 2020-01-02 | 2020-01-02 | Third-generation nuclear power coolant pump shell profile forging stepped core rod and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010002745.7A CN111112534A (en) | 2020-01-02 | 2020-01-02 | Third-generation nuclear power coolant pump shell profile forging stepped core rod and application |
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| CN111112534A true CN111112534A (en) | 2020-05-08 |
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| CN202010002745.7A Pending CN111112534A (en) | 2020-01-02 | 2020-01-02 | Third-generation nuclear power coolant pump shell profile forging stepped core rod and application |
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Citations (8)
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|---|---|---|---|---|
| JP2003193168A (en) * | 2001-12-28 | 2003-07-09 | Honda Motor Co Ltd | Functionally graded composite material and its manufacturing method |
| CN202079182U (en) * | 2011-03-04 | 2011-12-21 | 中信重工机械股份有限公司 | Combined core rod used for conical cylinder body forging with form copying method |
| CN104174798B (en) * | 2014-07-24 | 2016-01-20 | 二重集团（德阳）重型装备股份有限公司 | Main nuclear power pipeline pipe short route forging method |
| RU2014152745A (en) * | 2014-12-24 | 2016-07-20 | федеральное государственное автономное образовательное учреждение высшего образования "Самарский государственный аэрокосмический университет имени академика С.П. Королева (национальный исследовательский университет)" (СГАУ) | METHOD FOR EXTRACTING DETAILS OF GLASS TYPE AND DEVICE FOR ITS IMPLEMENTATION |
| CN206083729U (en) * | 2016-08-31 | 2017-04-12 | 天津天海精密锻造有限公司 | Hollow semi -axis forging former |
| CN108160905A (en) * | 2017-12-25 | 2018-06-15 | 株洲中车天力锻业有限公司 | A kind of locomotive shaft forging molding process |
| CN108500189A (en) * | 2018-03-07 | 2018-09-07 | 东南大学 | A kind of molding die with straight-edge conical cylinder forging and forging process for fuel method |
| CN109290503A (en) * | 2018-08-27 | 2019-02-01 | 山东莱芜金雷风电科技股份有限公司 | The hollow nearly molding forging method of big MW wind power principal axis |
-
2020
- 2020-01-02 CN CN202010002745.7A patent/CN111112534A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003193168A (en) * | 2001-12-28 | 2003-07-09 | Honda Motor Co Ltd | Functionally graded composite material and its manufacturing method |
| CN202079182U (en) * | 2011-03-04 | 2011-12-21 | 中信重工机械股份有限公司 | Combined core rod used for conical cylinder body forging with form copying method |
| CN104174798B (en) * | 2014-07-24 | 2016-01-20 | 二重集团（德阳）重型装备股份有限公司 | Main nuclear power pipeline pipe short route forging method |
| RU2014152745A (en) * | 2014-12-24 | 2016-07-20 | федеральное государственное автономное образовательное учреждение высшего образования "Самарский государственный аэрокосмический университет имени академика С.П. Королева (национальный исследовательский университет)" (СГАУ) | METHOD FOR EXTRACTING DETAILS OF GLASS TYPE AND DEVICE FOR ITS IMPLEMENTATION |
| CN206083729U (en) * | 2016-08-31 | 2017-04-12 | 天津天海精密锻造有限公司 | Hollow semi -axis forging former |
| CN108160905A (en) * | 2017-12-25 | 2018-06-15 | 株洲中车天力锻业有限公司 | A kind of locomotive shaft forging molding process |
| CN108500189A (en) * | 2018-03-07 | 2018-09-07 | 东南大学 | A kind of molding die with straight-edge conical cylinder forging and forging process for fuel method |
| CN109290503A (en) * | 2018-08-27 | 2019-02-01 | 山东莱芜金雷风电科技股份有限公司 | The hollow nearly molding forging method of big MW wind power principal axis |
Non-Patent Citations (1)
| Title |
|---|
| 刘静安等: "《铝合金锻造技术》", 30 June 2012 * |
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Application publication date: 20200508 |