CN113983254B - Variable internal diameter flange forging - Google Patents
Variable internal diameter flange forging Download PDFInfo
- Publication number
- CN113983254B CN113983254B CN202111272743.0A CN202111272743A CN113983254B CN 113983254 B CN113983254 B CN 113983254B CN 202111272743 A CN202111272743 A CN 202111272743A CN 113983254 B CN113983254 B CN 113983254B
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- Prior art keywords
- ring
- flange
- dovetail
- insert
- outer ring
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Forging (AREA)
Abstract
The invention discloses a flange forging with a variable inner diameter, which belongs to the technical field of flange forgings and comprises a flange outer ring, flange connecting holes and flange connecting rings, wherein a plurality of flange connecting holes are formed in an upper array of the flange outer ring, the flange connecting rings are inserted in the center of the flange outer ring, a flange inner ring is fixedly arranged in the center of the flange connecting rings, the flange outer ring and the flange connecting rings are fixedly connected with each other by using a dovetail connecting mechanism, the flange outer ring, the flange connecting rings and the flange inner ring are arranged in a split mode, the flange inner ring can be produced according to the inner diameter selected by requirements, the application range of the flange forging is improved, and the large flange forging can be produced in a mode of independent synchronous production and assembly of the flange outer ring, the flange connecting rings and the flange inner ring, so that the production efficiency of the flange forging is improved.
Description
Technical Field
The invention relates to the technical field of flange forgings, in particular to a variable inner diameter flange forgings.
Background
The forged flange is a product with the best mechanical property in flange products, and the raw material of the forged flange is generally a tube blank, and then continuous hammering is carried out after cutting so as to eliminate the defects of segregation, looseness and the like in steel ingots. The price and the mechanical property are one grade higher than those of the common casting flange. The flange is a part for connecting the pipe, the pipe and the valve with each other and is connected with the pipe end; there are also flanges for use in the ports of the apparatus, and the connection between the two apparatus is made by interconnecting the pipes to the pipe ends. Is an accessory product of the pipeline. The main materials of the forged flange are carbon steel, alloy steel and stainless steel. The main standards are national standard, electric standard, american standard, german standard, japanese standard and the like. The main corrosion-resistant treatments are oil coating and zinc coating. The forging flange has better pressure resistance and temperature resistance, and is generally suitable for high-pressure high-temperature working environments.
Most of the existing flanges are of an integrated structure, so that the corresponding flanges are used in the corresponding apertures, and convenience in use of the flanges is reduced; moreover, because the integral structure of the flange needs to be processed step by step during production, the large flange forging piece needs to frequently move and overturn blanks in the processing process, so that the processing efficiency of the large flange is lower.
Disclosure of Invention
The invention aims to provide a flange forging with a variable inner diameter, which can realize that the inner diameter of the flange forging at a production place is convenient to adjust, the applicability of the flange at the production place is convenient to improve, and the processing efficiency of the flange forging can be greatly improved through split processing.
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a variable internal diameter flange forging, includes flange outer lane, flange connecting hole and flange joint ring, a plurality of flange connecting holes have been seted up to the last array of flange outer lane, the center grafting of flange outer lane has the flange joint ring, the center fixed mounting of flange joint ring has the flange inner circle, all use forked tail coupling mechanism fixed connection between flange outer lane and flange joint ring and the flange inner circle.
As a preferable scheme of the invention, the dovetail connecting mechanism comprises a connecting ring dovetail insert block, an outer ring clamping groove is formed in one side of the center of the outer ring of the flange, a plurality of outer ring dovetail grooves are uniformly distributed at the bottom of the outer ring clamping groove, a plurality of connecting ring clamping edges are arranged at the end part of the flange connecting ring, the plurality of connecting ring dovetail insert blocks are arranged corresponding to the outer ring dovetail grooves, and are fixed on one side, facing the center of the flange connecting ring, of the connecting ring dovetail insert block, and the connecting ring dovetail insert block is clamped in the outer ring dovetail grooves.
As a preferable scheme of the invention, the dovetail connecting mechanism further comprises an inner ring dovetail insert block, the end part of the flange connecting ring corresponding to one side of the clamping edge of the connecting ring is provided with a connecting ring clamping groove, a plurality of connecting ring dovetail grooves are uniformly distributed at the bottom of the connecting ring clamping groove, a circle of convex edge is arranged at the end part of the inner ring of the flange, the plurality of inner ring dovetail insert blocks are uniformly distributed at the back side of the convex edge, and the plurality of inner ring dovetail insert blocks are correspondingly clamped in the connecting ring dovetail grooves one by one.
As a preferable mode of the invention, the plurality of connecting ring dovetail insert blocks and the plurality of inner ring dovetail insert blocks are arranged in a staggered manner.
As a preferable scheme of the invention, a tightening slope is arranged at the matching position of the inner side of the center of the outer ring of the flange and the flange connecting ring.
As a preferable scheme of the invention, the flange outer ring, the flange connecting ring and the flange inner ring are in interference fit.
As a preferable scheme of the invention, a transition ring is inserted in the center of the flange connection ring, and a flange inner ring is inserted in the center of the inner wall of the transition ring.
As a preferable scheme of the invention, a transition ring clamping groove is formed in the front face of the inner ring of the transition ring, a connection insert ring is inserted in the transition ring clamping groove, an inner ring expansion end is arranged at the end part of the outer wall of the flange inner ring, and the inner ring expansion end is matched with the connection insert ring.
As a preferable scheme of the invention, a plurality of circles of annular grooves are uniformly distributed on the inner wall of the connecting plug ring, a plurality of circles of annular protrusions are arranged on the outer wall of the expansion end of the inner ring, and the plurality of circles of annular grooves are meshed with the plurality of circles of annular protrusions.
As a preferable scheme of the invention, the inner end of the transition ring clamping groove is provided with a reinforcing slot, the inner end of the connecting insert ring is provided with a reinforcing insert ring, and the reinforcing insert ring is inserted into the reinforcing slot.
Compared with the prior art, the invention has the advantages that:
(1) This scheme is through the flange outer lane that sets up, flange joint hole on the flange outer lane can realize the connected function between two adjacent flanges, flange joint ring through setting up, flange joint ring can fixed flange inner circle, through setting up flange inner circle, flange inner circle can with pipeline end connection, flange outer lane, flange joint ring and the flange inner circle through split type setting, flange inner circle can select the internal diameter production of usefulness according to the demand, the application scope of flange forging has been improved, and can produce the large-scale flange forging through the independent synchronous production of flange outer lane, flange joint ring and flange inner circle then carry out the form production of equipment, improve the production efficiency of flange forging.
(2) According to the scheme, the transition ring is arranged, the inner diameter of the flange forging piece can be too small, the flange inner ring is mounted through the transition of the transition ring, the flange forging piece is further separated and produced, the production efficiency of the flange forging piece is further improved, and the maintenance cost of the flange can be reduced.
Drawings
Fig. 1 is a perspective view of a first embodiment of the present invention.
Fig. 2 is a layout view of a dovetail connection in accordance with a first embodiment of the present invention.
Fig. 3 is a front view of the flange outer ring of the present invention.
Fig. 4 is a front view of a flange connection ring of the present invention.
Fig. 5 is a side cross-sectional view of a dovetail insert of a corresponding attachment ring in accordance with a first embodiment of the present invention.
Fig. 6 is a side cross-sectional view of a corresponding inner race dovetail insert in accordance with a first embodiment of the present invention.
Fig. 7 is a side cross-sectional view of a second embodiment of the present invention.
The reference numerals in the figures illustrate:
1. a flange outer ring; 2. a flange connection hole; 3. a flange connection ring; 4. a flange inner ring; 5. a dovetail connection mechanism; 6. an outer ring clamping groove; 7. an outer ring dovetail groove; 8. the connecting ring is clamped with the edge; 9. a connecting ring clamping groove; 10. a connecting ring dovetail groove; 11. a connecting ring dovetail insert; 12. inner ring dovetail insert; 13. tightening the slope; 14. a transition ring; 15. a transition ring clamping groove; 16. connecting the insert ring; 17. an inner ring expansion end; 18. reinforcing the insert ring; 19. the slot is reinforced.
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. It is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Embodiment one:
referring to fig. 1-6, a variable inner diameter flange forging comprises a flange outer ring 1, flange connection holes 2 and flange connection rings 3, wherein a plurality of flange connection holes 2 are formed in an upper array of the flange outer ring 1, the flange connection rings 3 are inserted in the center of the flange outer ring 1, a flange inner ring 4 is fixedly arranged in the center of the flange connection rings 3, and the flange outer ring 1 is fixedly connected with the flange connection rings 3 and the flange inner ring 4 through dovetail connection mechanisms 5.
Specifically, the dovetail connection mechanism 5 comprises a connecting ring dovetail insert 11, an outer ring clamping groove 6 is formed in one side of the center of the flange outer ring 1, a plurality of outer ring dovetail grooves 7 are uniformly distributed at the bottom of the outer ring clamping groove 6, a plurality of connecting ring clamping edges 8 are arranged at the end part of the flange connection ring 3, the connecting ring dovetail insert 11 is provided with a plurality of connecting ring dovetail grooves 7 corresponding to the outer ring dovetail grooves 7, the plurality of connecting ring dovetail inserts 11 are all fixed on one side, facing the center of the flange connection ring 3, of the connecting ring clamping edges 8, and the connecting ring dovetail insert 11 is clamped in the outer ring dovetail grooves 7.
In the embodiment, the connecting ring dovetail insert 11 is matched with the outer ring dovetail groove 7, so that the flange outer ring 1 and the flange connecting ring 3 are conveniently connected and fixed.
Specifically, the dovetail connection mechanism 5 further comprises an inner ring dovetail insert 12, the end part of the flange connection ring 3 corresponding to one side of the connection ring clamping edge 8 is provided with a connection ring clamping groove 9, a plurality of connection ring dovetail grooves 10 are uniformly distributed at the bottom of the connection ring clamping groove 9, a circle of convex edge is arranged at the end part of the flange inner ring 4, the plurality of inner ring dovetail inserts 12 are uniformly distributed at the back side of the convex edge, and the plurality of inner ring dovetail inserts 12 are correspondingly clamped into the connection ring dovetail grooves 10 one by one.
In the embodiment, the connection and fixation of the flange connection ring 3 and the flange inner ring 4 are facilitated by the matching of the inner ring dovetail insert block 12 and the connection ring dovetail groove 10.
Specifically, the plurality of connection ring dovetail insert blocks 11 and the plurality of inner ring dovetail insert blocks 12 are staggered with each other.
In the embodiment, the connecting ring dovetail insert blocks 11 and the inner ring dovetail insert blocks 12 are arranged in a staggered mode, so that stress points at the connecting positions of the flange outer ring 1, the flange connecting ring 3 and the flange inner ring 4 are dispersed, fatigue damage caused by stress concentration is avoided, and the service life of the flange forging is prolonged.
Specifically, a tightening slope 13 is arranged at the matching position of the inner side of the center of the flange outer ring 1 and the flange connecting ring 3.
In this embodiment, through the tightening slope 13 that sets up for after the cooperation department of flange outer lane 1 and flange joint ring 3 pegged graft, utilize tightening slope 13's slope structure chucking, and through the pressure of flange outer lane 1 to flange joint ring 3, make flange joint ring 3's tip tighten up, indirectly exert pressure to flange inner circle 4, improved the compactness of being connected between flange joint ring 3 and the flange inner circle 4.
Specifically, the flange outer ring 1, the flange connecting ring 3 and the flange inner ring 4 are in interference fit.
In the embodiment, the tightness of the joint of the flange outer ring 1, the flange connecting ring 3 and the flange inner ring 4 is improved through interference fit.
Embodiment two:
referring to fig. 7, in the second embodiment, the other structure is the same as the first embodiment, except that the center of the flange connection ring 3 is inserted with a transition ring 14, and the center of the inner wall of the transition ring 14 is inserted with a flange inner ring 4.
In this embodiment, through setting up transition ring 14, transition ring 14 can be when the internal diameter of flange forging is too little, through the transitional mounting flange inner circle 4 of transition ring 14, further carries out the separation production to the flange forging, has further improved the production efficiency of flange forging to can reduce the maintenance cost of flange.
Specifically, a transition ring clamping groove 15 is formed in the front face of the inner ring of the transition ring 14, a connection insert ring 16 is inserted into the transition ring clamping groove 15, an inner ring expansion end 17 is arranged at the end part of the outer wall of the flange inner ring 4, and the inner ring expansion end 17 is matched with the connection insert ring 16.
In this embodiment, the inner ring expansion end 17 is matched with the connection insert ring 16, so that the inner ring expansion end expands in the transition ring clamping groove 15, and the tightness of the joint of the flange inner ring 4 and the transition ring 14 is ensured.
Specifically, the inner wall of the connecting insert ring 16 is uniformly provided with a plurality of annular grooves, the outer wall of the inner ring expansion end 17 is provided with a plurality of annular protrusions, and the annular grooves and the annular protrusions are meshed with each other.
In this embodiment, the firmness of the connection between the connection insert ring 16 and the inner ring expansion end 17 is improved by the engagement of the plurality of annular grooves and the plurality of annular protrusions.
Specifically, the inner end of the transition ring clamping groove 15 is provided with a reinforcing slot 19, the inner end of the connecting insert ring 16 is provided with a reinforcing insert ring 18, and the reinforcing insert ring 18 is inserted into the reinforcing slot 19.
In this embodiment, through the reinforcing insert ring 18 and the reinforcing insert groove 19 that set up, the transition ring 14 and the connecting insert ring 16 are all heated to reddish when assembling, are in the thermal expansion state, and after the cooling is accomplished in the assembly, the cooperation of reinforcing insert groove 19 and reinforcing insert ring 18 is inseparabler, has improved the firm degree of connection between connecting insert ring 16 and the transition ring draw-in groove 15.
Working principle: through the flange outer ring 1 that sets up, flange connecting hole 2 on the flange outer ring 1 can realize the connected function between two adjacent flanges, through the flange go-between 3 that set up, flange go-between 3 can fixed flange inner ring 4, through setting up flange inner ring 4, flange inner ring 4 can be connected with pipeline end, through the flange outer ring 1 that split type set up, flange go-between 3 and flange inner ring 4, flange inner ring 4 can be according to the internal diameter production of selecting usefulness of demand, the application scope of flange forging has been improved, and can produce large-scale flange forging through the independent synchronous production of flange outer ring 1, flange go-between 3 and flange inner ring 4 then carry out the form of equipment, improve the production efficiency of flange forging;
during the production of the flange forging, the flange outer ring 1, the flange connecting ring 3 and the flange inner ring 4 are respectively forged and formed, then the flange outer ring 1, the flange connecting ring 3 and the flange inner ring 4 are heated and then assembled and formed, after the flange outer ring 1, the flange connecting ring 3 and the flange inner ring 4 are cooled, the size is contracted, and the connecting ring dovetail insert 11 and the inner ring dovetail insert 12 are contracted, so that the connecting ring dovetail insert 11 is matched with the outer ring dovetail groove 7 and the inner ring dovetail insert 12 and the connecting ring dovetail groove 10 more tightly, and the connection firmness among the flange outer ring 1, the flange connecting ring 3 and the flange inner ring 4 is ensured.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the improved concept thereof, can be equivalently replaced or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a variable internal diameter flange forging which characterized in that: the flange outer ring (1), flange connecting holes (2) and flange connecting rings (3), wherein a plurality of flange connecting holes (2) are formed in an upper array of the flange outer ring (1), the flange connecting rings (3) are inserted in the center of the flange outer ring (1), a flange inner ring (4) is fixedly arranged in the center of the flange connecting rings (3), and the flange outer ring (1) is fixedly connected with the flange connecting rings (3) and the flange inner ring (4) through dovetail connecting mechanisms (5);
the dovetail connecting mechanism (5) comprises a connecting ring dovetail insert block (11), an outer ring clamping groove (6) is formed in one side of the center of the flange outer ring (1), a plurality of outer ring dovetail grooves (7) are uniformly distributed at the bottom of the outer ring clamping groove (6), connecting ring clamping edges (8) are arranged at the end part of the flange connecting ring (3), a plurality of connecting ring dovetail insert blocks (11) are arranged corresponding to the outer ring dovetail grooves (7), the plurality of connecting ring dovetail insert blocks (11) are all fixed on one side, facing the center of the flange connecting ring (3), of the connecting ring clamping edges (8), and the connecting ring dovetail insert blocks (11) are clamped in the outer ring dovetail grooves (7); the dovetail connecting mechanism (5) further comprises an inner ring dovetail insert block (12), a connecting ring clamping groove (9) is formed in the end portion, corresponding to one side of the connecting ring clamping edge (8), of the flange connecting ring (3), a plurality of connecting ring dovetail grooves (10) are uniformly distributed in the groove bottom of the connecting ring clamping groove (9), a circle of convex edge is formed in the end portion of the flange inner ring (4), the plurality of inner ring dovetail insert blocks (12) are uniformly distributed on the back side of the convex edge, and the plurality of inner ring dovetail insert blocks (12) are clamped in the connecting ring dovetail grooves (10) in a one-to-one correspondence mode; a tightening slope (13) is arranged at the matching position of the inner side of the center of the flange outer ring (1) and the flange connecting ring (3);
a transition ring (14) is inserted in the center of the flange connecting ring (3), and a flange inner ring (4) is inserted in the center of the inner wall of the transition ring (14);
the transition ring is characterized in that a transition ring clamping groove (15) is formed in the front face of the inner ring of the transition ring (14), a connecting insert ring (16) is inserted in the transition ring clamping groove (15), an inner ring expansion end (17) is arranged at the end part of the outer wall of the flange inner ring (4), and the inner ring expansion end (17) is matched with the connecting insert ring (16).
2. The variable inner diameter flange forging as recited in claim 1, wherein: the plurality of connecting ring dovetail plug blocks (11) and the plurality of inner ring dovetail plug blocks (12) are arranged in a staggered mode.
3. The variable inner diameter flange forging as recited in claim 1, wherein: the flange outer ring (1), the flange connecting ring (3) and the flange inner ring (4) are in interference fit.
4. The variable inner diameter flange forging as recited in claim 1, wherein: the inner wall of the connecting insertion ring (16) is uniformly provided with a plurality of annular grooves, the outer wall of the inner ring expansion end (17) is provided with a plurality of annular protrusions, and the annular grooves are meshed with the annular protrusions.
5. The variable inner diameter flange forging as recited in claim 4, wherein: the inner end of the transition ring clamping groove (15) is provided with a reinforcing slot (19), the inner end of the connecting insert ring (16) is provided with a reinforcing insert ring (18), and the reinforcing insert ring (18) is inserted into the reinforcing slot (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111272743.0A CN113983254B (en) | 2021-10-29 | 2021-10-29 | Variable internal diameter flange forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111272743.0A CN113983254B (en) | 2021-10-29 | 2021-10-29 | Variable internal diameter flange forging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113983254A CN113983254A (en) | 2022-01-28 |
| CN113983254B true CN113983254B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111272743.0A Active CN113983254B (en) | 2021-10-29 | 2021-10-29 | Variable internal diameter flange forging |
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| Country | Link |
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| CN (1) | CN113983254B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203202468U (en) * | 2013-04-23 | 2013-09-18 | 铜陵宏轩精密铸造有限公司 | Reducing connecting flange |
| CN109268591A (en) * | 2018-11-22 | 2019-01-25 | 泰州华然不锈钢制品有限公司 | A kind of reducing Ifold flange of bias |
| CN110529682A (en) * | 2019-09-12 | 2019-12-03 | 亚大塑料制品有限公司 | A kind of inside diameter-variable flange assembly |
| CN210661803U (en) * | 2019-10-30 | 2020-06-02 | 浙江温业法兰制造有限公司 | Variable-inner-diameter flange |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190055627A (en) * | 2017-11-15 | 2019-05-23 | 한국가스공사 | Gasket type variable orifice |
-
2021
- 2021-10-29 CN CN202111272743.0A patent/CN113983254B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203202468U (en) * | 2013-04-23 | 2013-09-18 | 铜陵宏轩精密铸造有限公司 | Reducing connecting flange |
| CN109268591A (en) * | 2018-11-22 | 2019-01-25 | 泰州华然不锈钢制品有限公司 | A kind of reducing Ifold flange of bias |
| CN110529682A (en) * | 2019-09-12 | 2019-12-03 | 亚大塑料制品有限公司 | A kind of inside diameter-variable flange assembly |
| CN210661803U (en) * | 2019-10-30 | 2020-06-02 | 浙江温业法兰制造有限公司 | Variable-inner-diameter flange |
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| Publication number | Publication date |
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| CN113983254A (en) | 2022-01-28 |
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