CN109261879A - A kind of inner hole protector for preventing hollow forging inner hole of spindle from deforming - Google Patents
A kind of inner hole protector for preventing hollow forging inner hole of spindle from deforming Download PDFInfo
- Publication number
- CN109261879A CN109261879A CN201810978769.9A CN201810978769A CN109261879A CN 109261879 A CN109261879 A CN 109261879A CN 201810978769 A CN201810978769 A CN 201810978769A CN 109261879 A CN109261879 A CN 109261879A
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- CN
- China
- Prior art keywords
- inner hole
- spindle
- flange
- hollow
- cuticula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B21J13/08—Accessories for handling work or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/06—Making machine elements axles or shafts
- B21K1/063—Making machine elements axles or shafts hollow
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
A kind of inner hole protector for preventing hollow forging inner hole of spindle from deforming, including fetal membrane, hollow spindle and inner hole of spindle, the upper end setting inner hole of hollow spindle protects mould, the inner hole cuticula is T-type, inner hole cuticula is made of the stop flange of the support rod and upper part that are vertically arranged, the stop flange reverse frustoconic small in the big lower part in top, support rod are located in inner hole of spindle.Different since inner hole does not have plug support in flange forming process and axle body core bar drawing process, the deformation of inner hole flange end is inevitable, of the invention design to support inner hole during inner hole guarantee flange forming indeformable.The problem of the invention avoids during hollow forging, inner hole of spindle is deformed.The configuration of the present invention is simple, cost is relatively low, very simple and practical in actual operation, can effectively prevent the deformation of inner hole during hollow spindle upsetting flange.Equipment of the size to adapt to different abilities, strong applicability can be changed with structure type according to the present invention.
Description
Technical field
The present invention, which relates to, belongs to hollow forging technical field, and specifically one kind prevents hollow forging
The inner hole protector of inner hole of spindle deformation.
Background technique
Wind-power electricity generation is quickly grown in recent years, and the model of blower also tends to enlargement, while wind power principal axis specification
Also enlarged, the inner hole of main shaft is also increasing.Wind power principal axis is mainly divided into two parts, flange and axle body, and forging at present is substantially all
It is flange socket form moulding, the free forging molding of axle body, and be solid forging, inner hole passes through subsequent machining completion.But with
Inner hole constantly increases, and solid forging is increasingly severe to the waste of material, and the hollow forging of main shaft is imperative, hollow forging and
Solid forging process is almost the same and the molding of flange fetal membrane, the free forging molding of axle body, difference are that axle body is core bar drawing
Molding.
But during flange forming, inner hole can be severely deformed, this can bring a great deal of trouble to subsequent machining,
Increase difficulty of processing.
Summary of the invention
In order to solve the above-mentioned technical problem deficiency prevents hollow forging inner hole of spindle from deforming the present invention provides a kind of
Inner hole protector.During the protector avoids hollow forging, inner hole of spindle deform the problem of.
To achieve the goals above, the technical solution adopted by the present invention are as follows: including fetal membrane, hollow spindle and inner hole of spindle,
It is characterized by: the upper end setting inner hole of hollow spindle protects mould, the inner hole cuticula is T-type, and inner hole cuticula is by being vertically arranged
Support rod and the stop flange of upper part composition, the stop flange reverse frustoconic small in the big lower part in top, support rod are located at main shaft
In inner hole.
Further, handle is arranged in the top of the stop flange of the inner hole cuticula.
The invention has the benefit that the invention avoids during hollow forging, the problem of inner hole of spindle deforms.This hair
Bright structure is simple, and cost is relatively low, very simple and practical in actual operation, can effectively prevent inner hole during hollow spindle upsetting flange
Deformation.Equipment of the size to adapt to different abilities can be changed with structure type according to the present invention, applicability is very strong.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is using shield mould rear flange molding front and back comparison diagram before and after common flange cuticula；
Fig. 3 is the LOAD FOR schematic diagram of common stop flange forming process；
Fig. 4 is the LOAD FOR schematic diagram of the stop flange forming process in the present invention；
Fig. 5 is using the flange forming schematic diagram after cuticula of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of inner hole protector for preventing hollow forging inner hole of spindle from deforming, as shown in Figure 1, including fetal membrane 2, hollow spindle 3
With inner hole of spindle 4, it is characterised in that: the upper end setting inner hole of hollow spindle 3 protects mould 1, and the inner hole cuticula 1 is T-type, inner hole shield
Film is made of the stop flange of the support rod and upper part that are vertically arranged, the stop flange reverse frustoconic small in the big lower part in top,
Support rod is located in inner hole of spindle 4.It is different since inner hole does not have plug in flange forming process and axle body core bar drawing process
Support, the deformation of inner hole flange end are inevitable, of the invention designs to support inner hole during inner hole guarantee flange forming
It is indeformable.The problem of the invention avoids during hollow forging, inner hole of spindle is deformed.The configuration of the present invention is simple, cost is relatively low,
It is very simple and practical in actual operation, it can effectively prevent the deformation of inner hole during hollow spindle upsetting flange.It can be according to this hair
Bright structure type changes equipment of the size to adapt to different abilities, strong applicability.
In order to further facilitate to use of the invention, handle 5 is arranged in the top of the horizon bar of the inner hole cuticula 1.
Flange forming process and axle body core bar drawing process are different since inner hole does not have plug support, inner hole flange end
Deformation be inevitable, but inner hole becomes smaller, then can be before upsetting flange by the expansion that inner hole is artificial, with a taper
Transition, Internal Hole Deformation makes moderate progress after molding, is proximate to exterior end surface portion and forms larger arc, although can guarantee subsequent
Processing dimension, but it is also less desirable.Inner hole shield mould of the invention can be made in upsetting flange so to prevent the change of inner hole
Shape, after the protection of inner hole shield mould, the deformation of inner hole reaches good control when flange forming, as shown in figure 3, but passing through meter
After the simulation of calculation machine calculates, simulated according to actual product size, flange diameter 1900mm has found the load of forming process too
Height, it can be seen that load has arrived at 100MN when forming more than half from Fig. 3, to the molding later period, load be even more close to 300MN,
It cannot achieve at all on general free forging press.Flange as a whole forms to be contacted when load is highly difficult to be mainly flange forming greatly
Area is too big caused, then improves to inner hole shield mould of the invention, under the stop flange of this inner hole cuticula uses top big
The small reverse frustoconic in portion, reduces contact area, protects mould upsetting flange using improved inner hole, contact area is small, hence it is evident that
Have dropped required load, as shown in figure 4, one 5000 tons of free forging press is it is achieved that so only formed middle part
Point, but border only needs to protect inner hole after mould takes out and be flattened one by one with narrow flat anvil, farther out far from center due to periphery, such as Fig. 5
It is shown, it can be seen that the deformation of centre bore not to be influenced substantially when pushing left side periphery, it is often more important that the pressure of equipment
It is required that reducing, operate also very simple and practical.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (2)
1. a kind of inner hole protector for preventing hollow forging inner hole of spindle from deforming, including in fetal membrane (2), hollow spindle (3) and main shaft
Hole (4), it is characterised in that: the upper end setting inner hole of hollow spindle (3) protects mould (1), and the inner hole cuticula (1) is T-type, inner hole shield
Film is made of the stop flange of the support rod and upper part that are vertically arranged, the stop flange reverse frustoconic small in the big lower part in top,
Support rod is located in inner hole of spindle (4).
2. a kind of inner hole protector for preventing hollow forging inner hole of spindle from deforming according to claim 1, it is characterised in that: institute
Handle (5) are arranged in the top of the stop flange for the inner hole cuticula (1) stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810978769.9A CN109261879B (en) | 2018-08-27 | 2018-08-27 | Inner hole protective tool for preventing deformation of inner hole of hollow forging spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810978769.9A CN109261879B (en) | 2018-08-27 | 2018-08-27 | Inner hole protective tool for preventing deformation of inner hole of hollow forging spindle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109261879A true CN109261879A (en) | 2019-01-25 |
| CN109261879B CN109261879B (en) | 2021-03-23 |
Family
ID=65154229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810978769.9A Active CN109261879B (en) | 2018-08-27 | 2018-08-27 | Inner hole protective tool for preventing deformation of inner hole of hollow forging spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109261879B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433777A (en) * | 2022-02-09 | 2022-05-06 | 通裕重工股份有限公司 | Wind power hollow main shaft inner hole extruding and expanding forming process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1199511B (en) * | 1961-07-07 | 1965-08-26 | Rota App Und Maschb Dr Hennig | Process for the production of measuring tubes for variable area flow meters |
| CN1654140A (en) * | 2005-03-04 | 2005-08-17 | 宝钢集团上海五钢有限公司 | Hot-forming and forging method for large-sized high-temperature alloy turbine disc |
| CN1736654A (en) * | 2004-08-19 | 2006-02-22 | 中国北车集团大同电力机车有限责任公司 | Integrated forging method of flange type step thin wall long sheath forging |
| CN102029350A (en) * | 2010-12-17 | 2011-04-27 | 重庆大学 | Progressive forging forming method for large cake forged pieces |
| CN103909423A (en) * | 2013-01-03 | 2014-07-09 | 庆南科技园公司 | Manufacturing method of main shaft for wind turbine |
| CN105057529A (en) * | 2015-08-20 | 2015-11-18 | 西北工业大学 | Extrusion forming method for hollow shaft forged piece with variable cross section |
| CN106238661A (en) * | 2016-08-26 | 2016-12-21 | 江阴振宏重型锻造有限公司 | The hollow forging technique of large-scale wind electricity main-axis |
| CN106493282A (en) * | 2016-12-01 | 2017-03-15 | 贵州安大航空锻造有限责任公司 | Ti1023 titanium alloy tubular journal forging near isothermal forging manufacturing process |
-
2018
- 2018-08-27 CN CN201810978769.9A patent/CN109261879B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1199511B (en) * | 1961-07-07 | 1965-08-26 | Rota App Und Maschb Dr Hennig | Process for the production of measuring tubes for variable area flow meters |
| CN1736654A (en) * | 2004-08-19 | 2006-02-22 | 中国北车集团大同电力机车有限责任公司 | Integrated forging method of flange type step thin wall long sheath forging |
| CN1654140A (en) * | 2005-03-04 | 2005-08-17 | 宝钢集团上海五钢有限公司 | Hot-forming and forging method for large-sized high-temperature alloy turbine disc |
| CN102029350A (en) * | 2010-12-17 | 2011-04-27 | 重庆大学 | Progressive forging forming method for large cake forged pieces |
| CN103909423A (en) * | 2013-01-03 | 2014-07-09 | 庆南科技园公司 | Manufacturing method of main shaft for wind turbine |
| CN105057529A (en) * | 2015-08-20 | 2015-11-18 | 西北工业大学 | Extrusion forming method for hollow shaft forged piece with variable cross section |
| CN106238661A (en) * | 2016-08-26 | 2016-12-21 | 江阴振宏重型锻造有限公司 | The hollow forging technique of large-scale wind electricity main-axis |
| CN106493282A (en) * | 2016-12-01 | 2017-03-15 | 贵州安大航空锻造有限责任公司 | Ti1023 titanium alloy tubular journal forging near isothermal forging manufacturing process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433777A (en) * | 2022-02-09 | 2022-05-06 | 通裕重工股份有限公司 | Wind power hollow main shaft inner hole extruding and expanding forming process |
| CN114433777B (en) * | 2022-02-09 | 2023-09-19 | 通裕重工股份有限公司 | Wind power hollow main shaft inner hole extrusion-expansion forming process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109261879B (en) | 2021-03-23 |
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