CN215879760U - Positioning structure of hollow blade - Google Patents
Positioning structure of hollow blade Download PDFInfo
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- CN215879760U CN215879760U CN202122107636.4U CN202122107636U CN215879760U CN 215879760 U CN215879760 U CN 215879760U CN 202122107636 U CN202122107636 U CN 202122107636U CN 215879760 U CN215879760 U CN 215879760U
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- positioning
- wax
- blade
- core
- hollow blade
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Abstract
The utility model provides a positioning structure of a hollow blade, which comprises a prefabricated core, a wax mould and a positioning clamp, wherein the core is arranged in the wax mould; the length of the positioning clamp is 11-31mm, and the positioning clamp is arranged at the most easily deformed maximum bending torsion position of the blade; the positioning clamp is cylindrical. According to the utility model, the positioning fixture arranged between the wax mould and the mould shell is utilized to synchronously drive the core part and the outer contour in the process flow, so that the deformation of the blade core part can be effectively controlled.
Description
Technical Field
The utility model mainly relates to the field of positioning of blade cores, in particular to a positioning structure of a hollow blade.
Background
The core part of the conventional hollow blade has small deformation and cannot influence the wall thickness; however, the outline and the core part of the 875 hollow blade are in a bending and twisting state, the deformation is large, the wall thickness is quite uneven, and the qualified wall thickness cannot be obtained.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a positioning structure of a hollow blade, which comprises a prefabricated core 1, a wax mold 2 and a positioning clamp 3, wherein the core 1 is arranged in the wax mold 2, a mold shell 4 is arranged outside the wax mold 2, the positioning clamp 3 is arranged on the core 1, and the other end of the positioning clamp 3 is arranged on the mold shell 4;
the length of the positioning clamp 3 is 11-31mm
The positioning fixture 3 is arranged at the most easily deformed bending maximum position of the blade;
the positioning jig 3 is cylindrical.
Preferably, the wax pattern 2 has the same profile as the blade profile.
Preferably, the positioning fixture 3 penetrates through the wax pattern and is higher than the wax pattern 2, and the part higher than the wax pattern 2 is arranged in the formwork 4.
Preferably, the positioning jig 3 has a diameter of 10 mm.
Preferably, the length of the positioning jig 3 is 20 mm.
Preferably, the maximum bending torsion is arranged at the positions 210mm and 460mm away from the big head end surface of the blade blank.
Preferably, the positioning jig 3 is made of the same material as the blade.
The utility model has the beneficial effects that: the positioning fixture arranged between the wax mould and the mould shell is utilized to synchronously drive the core part and the outer contour in the process flow, so that the deformation of the blade core part can be effectively controlled.
Drawings
FIG. 1 is a view showing a construction of a wax pattern according to the present invention;
FIG. 2 is a sectional view of the wax pressed state A-A of FIG. 1;
FIG. 3 is a sectional view of the paint finish state taken along line B in FIG. 1;
FIG. 4 is a cross-sectional view of C-C of FIG. 3;
in the figure, the position of the upper end of the main shaft,
1. a core; 2. wax pattern; 3. positioning a clamp; 4. a mold shell.
Detailed Description
In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the utility model only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 4, the present invention includes: the device comprises a prefabricated core 1, a wax mould 2 and a positioning clamp 3, wherein the core 1 is arranged in the wax mould 2, a mould shell 4 is arranged outside the wax mould 2, the positioning clamp 3 is arranged on the core 1, and the other end of the positioning clamp 3 is arranged on the mould shell 4;
the length of the positioning clamp 3 is 11-31mm
The positioning fixture 3 is arranged at the most easily deformed bending maximum position of the blade;
the positioning jig 3 is cylindrical.
In this embodiment, the wax pattern 2 preferably has the same outer shape as the blade.
In this embodiment, it is preferable that the positioning fixture 3 is inserted through the wax pattern and is higher than the wax pattern 2, and the portion higher than the wax pattern 2 is disposed in the mold shell 4.
Set up above-mentioned structure, positioning fixture's one end supports the core, and the other end exceeds the wax matrix, can guarantee that positioning fixture combines as an organic wholely with the outside shell of wax matrix, and then guarantees that it does not take place the displacement under the stress.
In the present embodiment, the diameter of the positioning jig 3 is preferably 10 mm.
By setting the sizes, through a large number of tests, the positioning clamp with the diameter of 10mm is the most appropriate size, and the positioning clamp with the size can play a limiting role and can be combined with molten steel in the casting process into a whole.
In the present embodiment, the length of the positioning jig 3 is preferably 20 mm.
In this embodiment, the wall thickness of blade is 10mm, and the thickness of mould shell is 32mm, and according to these data, the length size of the most suitable positioning fixture is 20mm, can guarantee that spacing effect can not reduce, can reduce the cost again.
In the implementation, the maximum bending torsion is preferably arranged at the positions 210mm and 460mm away from the large end face of the blade blank.
The positions are set, and through experiments, the positions can be placed to obtain the best expected effect.
In this embodiment, the positioning jig 3 is preferably made of the same material as the blade.
By adopting the structure, the positioning fixture is made of the material consistent with the blade, so that the positioning fixture and the molten steel can be integrally melted in the roasting and casting processes, and the quality of the blade can not be influenced.
When in use, a prefabricated core is embedded in a wax mould, and a positioning clamp is placed on the wax mould to limit the core part in all subsequent process flows, such as dewaxing, roasting and casting; the selection of the position of the positioning fixture is based on the principle that the relative deformation of the core part and the outer contour of the part with the largest blade deformation is ensured not to occur, and then in the embodiment, two point positions are selected for the inner arc and the back arc of the wax mold and are both at the position with the largest blade thickness, so that the deformation of the core part can be controlled in the process flow.
The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.
Claims (7)
1. The positioning structure of the hollow blade is characterized by comprising a prefabricated core (1), a wax mold (2) and a positioning clamp (3), wherein the core (1) is arranged in the wax mold (2), a mold shell (4) is arranged outside the wax mold (2), the positioning clamp (3) is arranged on the core (1), and the other end of the positioning clamp (3) is arranged on the mold shell (4);
the length of the positioning clamp (3) is 11-31mm
The positioning fixture (3) is arranged at the most easily deformed bending maximum position of the blade;
the positioning clamp (3) is cylindrical.
2. The positioning structure of a hollow blade according to claim 1, wherein: the shape of the wax mould (2) is the same as that of the blade.
3. The positioning structure of a hollow blade according to claim 2, wherein: the positioning fixture (3) penetrates through the wax mould and is higher than the wax mould (2), and the part higher than the wax mould (2) is arranged in the mould shell (4).
4. The positioning structure of the hollow blade according to claim 3, wherein: the diameter of the positioning clamp (3) is 10 mm.
5. The positioning structure of the hollow blade according to claim 4, wherein: the length of the positioning clamp (3) is 20 mm.
6. The positioning structure of the hollow blade according to claim 5, wherein: the maximum bending position is arranged at the positions 210mm and 460mm away from the end surface of the big head of the blade blank.
7. The positioning structure of the hollow blade according to claim 6, wherein: the positioning fixture (3) is consistent with the blades in material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122107636.4U CN215879760U (en) | 2021-09-02 | 2021-09-02 | Positioning structure of hollow blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122107636.4U CN215879760U (en) | 2021-09-02 | 2021-09-02 | Positioning structure of hollow blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215879760U true CN215879760U (en) | 2022-02-22 |
Family
ID=80340760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122107636.4U Active CN215879760U (en) | 2021-09-02 | 2021-09-02 | Positioning structure of hollow blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215879760U (en) |
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2021
- 2021-09-02 CN CN202122107636.4U patent/CN215879760U/en active Active
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