CN220444957U - Forging device for end cover of wind power gear box - Google Patents
Forging device for end cover of wind power gear box Download PDFInfo
- Publication number
- CN220444957U CN220444957U CN202321890075.2U CN202321890075U CN220444957U CN 220444957 U CN220444957 U CN 220444957U CN 202321890075 U CN202321890075 U CN 202321890075U CN 220444957 U CN220444957 U CN 220444957U
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- Prior art keywords
- die
- inner hole
- gear box
- end cover
- forging
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- 238000005242 forging Methods 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Forging (AREA)
- Gears, Cams (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model belongs to the technical field of machine manufacturing, and provides a forging device for an end cover of a wind power gear box, which comprises a special die, wherein the special die comprises an outer die, an inner die, a bottom plate and a core, and the outer die is in a shape of an inner hole ring with a step; the inner die is in the shape of an outer circle and a ring with a step in height, the outer circle size of the step is in clearance fit with the inner hole of the outer die, each step of the end face of the height is the size of each step of a forging blank of the end cover of the gear box, and meanwhile, the height difference between the inner die and the bottom plate is also used as the step for forming the end cover of the gear box; the bottom plate is a cake forging with holes, the outer diameter of the bottom plate is matched with the inner hole of the inner die, the inner hole is a step inner hole, and the size of the inner hole is matched with the core; the mold core is a short cylindrical forging with inclination and steps, the step of the mold core is matched with the inner hole of the bottom plate, and the outer diameter of the mold core is the blank size of the inner hole of the end cover of the wind power gear box; the die has the advantages of simple structure, easily obtained materials, easy manufacture, convenient operation, effective improvement of production efficiency and reduction of production cost.
Description
Technical Field
The utility model belongs to the technical field of machine manufacturing, and particularly relates to a forging device for an end cover of a wind power gear box.
Background
Wind power generation is taken as a new clean energy source, the wind power industry is vigorously developed, a wind power gear box is taken as an important mechanical component in a wind power unit, the wind power gear box is mainly used for transmitting power generated by wind wheels under the action of wind power to a generator and enabling the power to obtain corresponding rotating speed, a gear box end cover is a 'gate' of the gear box and plays a role in protecting and sealing important parts in the gear box, the structure of the wind power gear box is a plurality of small-step disc forgings, and all parts of the small-step disc forgings are assembled and sealed by matching with a gear box body, so that the quality temperature at the small steps is related to the stable operation of the whole gear box. The traditional production method comprises the following steps: forging the gear box end cover into a round cake shape, and machining small steps of each part in the gear box end cover to the size of a part.
The disadvantages of the traditional process are: because the gear box end cover has a plurality of small steps, the small steps are small in height and different in diameter difference, the steps cannot be produced through free forging, the free forging production efficiency is low, the forging allowance is large, the weight of a forging piece is large, raw materials are wasted, meanwhile, a forging piece fiber streamline is damaged due to machining forming, the mechanical property is poor, and the quality stability is reduced.
Disclosure of Invention
In order to solve at least one technical problem in the background art, the utility model provides a forging device for a wind power gear box end cover, which aims to solve the problems that a plurality of small steps cannot be forged on the wind power gear box end cover produced by the prior art, and a forging fiber streamline is damaged and the mechanical property is poor due to mechanical processing and forming, and reduce raw material consumption.
The technical scheme adopted for solving the technical problems is that a special die is adopted, and the technical steps of forging the wind power gear box end cover by using the tool are designed. The special die designed by the utility model has the advantages of simple structure, easily obtained materials, easy manufacture and convenient operation, and the size of the end cover of the gear box is also fixed due to the relative fixation of the wind power gear box, so that the special die is suitable for forming, the production efficiency can be effectively improved, and the production cost is reduced.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the forging device for the wind power gear box end cover comprises a special die, wherein the special die comprises an outer die, an inner die, a bottom plate and a core, and the outer die is in a shape of an inner hole with a step ring;
the inner die is in the shape of an outer circle and a ring with a step in height, the outer circle size of the step is in clearance fit with the inner hole of the outer die, each step of the end face of the height is the size of each step of a forging blank of the end cover of the gear box, and meanwhile, the height difference between the inner die and the bottom plate is also used as the step for forming the end cover of the gear box;
the bottom plate is a cake forging with holes, the outer diameter of the bottom plate is matched with the inner hole of the inner die, the inner hole is a step inner hole, and the size of the inner hole is matched with the core;
the mold core is a short cylindrical forging with inclination and steps, the step of the mold core is matched with the inner hole of the bottom plate, and the outer diameter of the mold core is the blank size of the inner hole of the end cover of the wind power gear box;
furthermore, the small inner hole step of the outer die is matched with the inner die, the large inner hole size is the diameter size of a gear box end cover forge piece blank finished product, and the gradient of the large inner hole size is 2-3 degrees.
Further, the core is designed to have a slope shape with a slope of 3-4.
The beneficial effects of the utility model are as follows:
the forging device for the wind power gear box end cover comprises a special die, wherein the special die comprises an outer die, an inner die, a bottom plate and a core, the outer die is in the shape of an inner hole ring with steps, the inner die is in the shape of an outer circle and a high ring with steps, the bottom plate is a cake forging with holes, the core is a short cylindrical forging with inclination and steps, the die is simple in structure, materials are easy to obtain, the manufacturing is easy, the operation is convenient, the problems that a plurality of small steps cannot be forged out in the wind power gear box end cover produced in the prior art, a forging fiber streamline is damaged due to machining forming, the mechanical property is poor and the like are solved, and meanwhile raw material consumption is reduced; because wind-powered electricity generation gear box is relatively fixed, the gear box end cover size is also fixed, is fit for adopting special mould shaping, can effectively improve production efficiency, reduction in production cost.
Additional aspects of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic diagram of a placement mode of a special die and a gear box end cover during forging forming;
FIG. 2 is a blank shape of a gear case end cap;
FIG. 3 is a diagram of a forging after the end cap of the gear box of the present utility model is stepped;
FIG. 4 is a diagram of an original gearbox end cap forging
FIG. 5 is a block diagram of a dedicated mold according to the present utility model
The reference numerals in the figures are: 1. an outer mold; 2. an inner mold; 3. a bottom plate; 4. a core; 5. and (5) blank.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. refer to an orientation or a positional relationship based on that shown in the drawings, and are merely relational terms, which are used for convenience in describing structural relationships of various components or elements of the present utility model, and do not denote any one of the components or elements of the present utility model, and are not to be construed as limiting the present utility model.
In the present utility model, terms such as "fixedly attached," "connected," "coupled," and the like are to be construed broadly and refer to either a fixed connection or an integral or removable connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present utility model can be determined according to circumstances by a person skilled in the relevant art or the art, and is not to be construed as limiting the present utility model.
Examples
As shown in fig. 1-5, the embodiment provides a forging device for an end cover of a wind power gear box, which comprises a special die, wherein the special die comprises an outer die 1, an inner die 2, a bottom plate 3 and a core 4, the outer die 1 is in a shape of a stepped ring in an inner hole, a small inner hole step is matched with the inner die 2, a large inner hole size is the diameter size of a finished product of a forging blank 5 of the end cover of the gear box, and the gradient of the large inner hole size is 2-3 degrees; the inner die 2 is in the shape of an outer circle and a ring with a step in height, the outer circle size of the step is in clearance fit with the inner hole of the outer die 1, each step of the end face of the height is the size of each step of the forging blank 5 of the end cover of the gear box, and meanwhile, the height difference between the inner die 2 and the bottom plate 3 is also used as the step for forming the end cover of the gear box;
the bottom plate 3 is a cake forging with holes, the outer diameter of the bottom plate is matched with the inner hole of the inner die 2, the inner hole is a step inner hole, and the size of the inner hole is matched with the core 4; the core 4 is a short cylindrical forging with inclination and steps, the step of the core 4 is matched with the inner hole of the bottom plate 3, the outer diameter of the core 4 is the size of a blank 5 of the inner hole of the end cover of the wind power gear box, and in order to facilitate demoulding of the end cover of the wind power gear box after being formed, the core 4 is designed into an inclination shape, and the inclination is 3-4 degrees.
The working process is as follows: forging the steel ingot to a round billet with holes, wherein the size of an inner hole of the round billet is consistent with the diameter of the tooling core 4, the outer diameter of the round billet is provided with a slope, the slope height is half of the thickness of the billet, and the slope size is 45-50 degrees, so that the billet is convenient to fill a die cavity, as shown in fig. 2, h1=h/2;
aligning the inner hole of the blank with the core 4, and placing the blank into a special die;
and (3) spinning the blank by using a flat anvil, so that the die cavity is full of the blank, the lower end face of the blank is attached to the upper end face of the inner die 2 and the upper end face of the bottom plate 3, the inner hole of the blank is attached to the outer diameter of the core 4, the outer diameter of the blank is attached to the inner diameter of the outer die 1, the height of the blank is flush with the height of the outer die 1, and the sizes of all parts of the die cavity are formed into the shape of the wind power gear box end cover.
As shown in fig. 5, the outer mold 1 is in the shape of a ring with a step in an inner hole, the small inner hole step is matched with the inner mold 2, the large inner hole size is the diameter size of a finished product of a gear box end cover forging blank 5, and the gradient of the large inner hole size is 2-3 degrees;
the internal mold 2 is in the shape of an outer circle and a ring with a height step, the size of the outer circle of the step is in clearance fit with the inner hole of the external mold 1, so that an iron scale can be cleaned after the internal mold 1 and the external mold 1 are separated, pits or cracks are prevented from being generated on a forge piece blank 5 because the iron scale is not cleaned, each step of the height end face is the size of each step of the forge piece blank 5 of the end cover of the gearbox, meanwhile, the height difference between the internal mold 2 and the bottom plate 3 is also used as the step of the end cover of the formed gearbox, and the stress concentration of the mold is avoided at each step, and chamfering and rounding treatment are carried out.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (3)
1. The forging device for the wind power gear box end cover is characterized by comprising a special die, wherein the special die comprises an outer die, an inner die, a bottom plate and a core, and the outer die is in a shape of an inner hole with a step ring;
the inner die is in the shape of an outer circle and a ring with a step in height, the outer circle size of the step is in clearance fit with the inner hole of the outer die, each step of the end face of the height is the size of each step of a forging blank of the end cover of the gear box, and meanwhile, the height difference between the inner die and the bottom plate is also used as the step for forming the end cover of the gear box;
the bottom plate is a cake forging with holes, the outer diameter of the bottom plate is matched with the inner hole of the inner die, the inner hole is a step inner hole, and the size of the inner hole is matched with the core;
the mold core is a short cylindrical forging with inclination and steps, the step of the mold core is matched with the inner hole of the bottom plate, and the outer diameter of the mold core is the blank size of the inner hole of the end cover of the wind power gear box.
2. The forging device for the end cover of the wind power gear box according to claim 1, wherein the small inner hole step of the outer die is matched with the inner die, the large inner hole size is the diameter size of a blank finished product of the end cover forging of the gear box, and the gradient of the large inner hole size is 2-3 degrees.
3. The wind power gearbox end cap forging apparatus of claim 1, wherein the core is designed in a taper shape having a taper of 3-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321890075.2U CN220444957U (en) | 2023-07-18 | 2023-07-18 | Forging device for end cover of wind power gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321890075.2U CN220444957U (en) | 2023-07-18 | 2023-07-18 | Forging device for end cover of wind power gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220444957U true CN220444957U (en) | 2024-02-06 |
Family
ID=89732149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321890075.2U Active CN220444957U (en) | 2023-07-18 | 2023-07-18 | Forging device for end cover of wind power gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220444957U (en) |
-
2023
- 2023-07-18 CN CN202321890075.2U patent/CN220444957U/en active Active
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