CN210509457U - 3D surfacing structure of impact type runner - Google Patents

3D surfacing structure of impact type runner Download PDF

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Publication number
CN210509457U
CN210509457U CN201921112294.1U CN201921112294U CN210509457U CN 210509457 U CN210509457 U CN 210509457U CN 201921112294 U CN201921112294 U CN 201921112294U CN 210509457 U CN210509457 U CN 210509457U
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Prior art keywords
interface
bucket
connecting portion
build
disc
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CN201921112294.1U
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Inventor
施旭明
金小锋
庄文进
花雷生
白振宇
张伟华
廖芳芳
马建峰
熊建军
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Zhejiang Fuchunjiang Hydropower Equipment Co ltd
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Zhejiang Fuchunjiang Hydropower Equipment Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Hydraulic Turbines (AREA)

Abstract

The utility model discloses an impacted style runner 3D build-up welding structure, which comprises a disc, the outer fringe of disc is equipped with the bucket connecting portion around angular arrangement such as the outer circumference of disc, the outer end of bucket connecting portion is equipped with the build-up welding interface, be equipped with layered build-up welding's bucket portion on the build-up welding interface, bucket portion is connected as an organic wholely with bucket connecting portion. The utility model aims at providing a reduce and forge the degree of difficulty, satisfy the impacted style runner 3D build-up welding structure that present forging apparatus manufacturing capability required.

Description

3D surfacing structure of impact type runner
Technical Field
The utility model belongs to the hydraulic turbine field especially relates to an impacted style runner 3D build-up welding structure.
Background
The impact runner is subjected to alternating stress with large amplitude, fatigue failure is easy to generate, and bucket breakage accidents occur in a plurality of power station casting water buckets historically. The main production mode of the impact machine set rotating wheel at the present stage is forging and numerical control machining forming, the machining mode basically has no material defects, the power station has good operation feedback, and the method is the main mode of the existing impact rotating wheel production.
The material of the rotating wheel is stainless steel, the forging resistance is too large, the weight of the domestic maximum forging performance forging blank is less than 40 tons, and the diameter is not more than 4 meters. The single machine capacity of the domestic largest impact type water turbine is 10 tens of thousands kilowatts at present, the maximum diameter of the corresponding rotating wheel is less than 4 meters, and the production requirement of the machine set at the present stage can be met. However, with the development of technology and the demand of domestic power stations, the single impact unit is urgently required to be expanded to the million kilowatts level, the weight of the corresponding whole forging blank reaches more than 200 tons, and the diameter reaches more than 6 meters. At present, the maximum theoretical production capacity of stainless steel forgings of a domestic maximum free forging press (18500 ton press) is 100 tons, and the actual demand of products far exceeds the manufacturing capacity of equipment.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome the above-mentioned not enough among the prior art, provide an impacted style runner 3D build-up welding structure that reduces the forging degree of difficulty, satisfies present forging apparatus manufacturing capability requirement.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an impacted style runner 3D build-up welding structure, includes the disc, the outer fringe of disc is equipped with the bucket connecting portion of angular arrangement such as around the outer circumference of disc, the outer end of bucket connecting portion is equipped with the build-up welding interface, be equipped with layered build-up welding's bucket portion on the build-up welding interface, bucket portion is connected as an organic whole with bucket connecting portion.
Preferably, the surfacing interface is in an I shape, and the surfacing interface is parallel to the axis of the disc.
Preferably, the surfacing interface is U-shaped and comprises an outer interface positioned at the outer end of the water bucket connecting part, and an upper interface and a lower interface which are positioned at the upper side and the lower side of the outer end of the water bucket connecting part and are respectively vertical to the outer interface.
Preferably, the build-up welding boundary surface is V-shaped and comprises an outer boundary surface positioned at the outer end of the water bucket connecting part, an upper boundary inclined surface and a lower boundary inclined surface which are positioned at the upper side and the lower side of the outer end of the water bucket connecting part, wherein the upper boundary inclined surface and the lower boundary inclined surface are respectively inclined to the outer boundary surface.
The utility model has the advantages that: (1) the water bucket structure is conveniently formed by forging the disc and overlaying the disc, the weight of the forged disc is reduced to more than 80 tons, the requirement on the manufacturing capacity of forging equipment is met, and the production difficulty is reduced; (2) the surfacing position is positioned in a low stress area, so that the strength of the root of the water bucket is effectively improved, and the integral reliability of the rotating wheel is ensured; (3) and 3D surfacing structure is adopted, so that materials required by bucket forming are reduced, and the production cost is saved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a structural sectional view of embodiment 1 of the present invention;
FIG. 3 is a structural sectional view of a disc according to embodiment 1 of the present invention;
fig. 4 is a structural sectional view of embodiment 2 of the present invention;
fig. 5 is a structural sectional view of a disc of embodiment 2 of the present invention;
fig. 6 is a structural sectional view of embodiment 3 of the present invention;
fig. 7 is a structural sectional view of a disc in embodiment 3 of the present invention.
In the figure: the water bucket structure comprises a disc 1, a water bucket connecting part 1a, a surfacing interface 11, an upper interface 11a, an outer interface 11b, a lower interface 11c, an upper boundary inclined plane 111, a lower boundary inclined plane 112 and a water bucket part 2.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
Example 1:
in the embodiment shown in fig. 1, the 3D overlaying structure of the impulse runner comprises a disc 1, and in combination with the outer edge of the disc 1 shown in fig. 2 and 3, bucket connecting portions 1a which are arranged around the outer circumference of the disc 1 at equal angles are arranged, the bucket connecting portions 1a protrude out of the outer circumference of the disc 1, an overlaying interface 11 is arranged at the outer end of the bucket connecting portions 1a, the overlaying interface 11 is a plane, and the overlaying interface 11 is parallel to the axis of the disc 1. The surfacing interface 11 is provided with a bucket part which is subjected to layered surfacing, and the bucket part is connected with the bucket connecting part 1a into a whole.
Example 2
The difference between the embodiment 2 and the embodiment 1 is that, as shown in fig. 4 and 5, the surfacing interface 11 is U-shaped, and includes an outer interface 11b located at the outer end of the bucket connecting portion 1a, and an upper interface 11a and a lower interface 11c located at the upper and lower sides of the outer end of the bucket connecting portion 1a, and the upper interface 11a and the lower interface 11c are perpendicular to the outer interface 11b, respectively.
Example 3
The difference between embodiment 3 and embodiment 1 is that, as shown in fig. 6 and 7, the weld deposit interface 11 is V-shaped, and includes an outer interface 11b located at the outer end of the bucket connecting portion 1a, and an upper boundary inclined surface 111 and a lower boundary inclined surface 112 located at the upper and lower sides of the outer end of the bucket connecting portion 1a, and the upper boundary inclined surface 111 and the lower boundary inclined surface 112 are respectively inclined to the outer interface 11 b.

Claims (4)

1. The utility model provides an impacted style runner 3D build-up welding structure, characterized by, includes disc (1), the outer fringe of disc (1) is equipped with around disc (1) outer circumference equiangular arrangement's bucket connecting portion (1 a), the outer end of bucket connecting portion (1 a) is equipped with build-up welding interface (11), be equipped with layered build-up welding's bucket portion on build-up welding interface (11), bucket portion is connected as an organic whole with bucket connecting portion (1 a).
2. 3D weld overlay structure according to claim 1, wherein the weld overlay interface (11) is I-shaped, the weld overlay interface (11) being parallel to the axis of the disc (1).
3. The 3D overlaying structure for the impulse runner according to claim 1, wherein the overlaying interface (11) is U-shaped and comprises an outer interface (11 b) located at the outer end of the bucket connecting portion (1 a) and an upper interface (11 a) and a lower interface (11 c) located at the upper side and the lower side of the outer end of the bucket connecting portion (1 a), and the upper interface (11 a) and the lower interface (11 c) are respectively perpendicular to the outer interface (11 b).
4. The 3D overlaying structure for the impulse runner according to claim 1, wherein the overlaying interface (11) is V-shaped and comprises an outer boundary surface (11 b) located at the outer end of the bucket connecting portion (1 a) and an upper boundary inclined surface (111) and a lower boundary inclined surface (112) located at the upper side and the lower side of the outer end of the bucket connecting portion (1 a), and the upper boundary inclined surface (111) and the lower boundary inclined surface (112) are respectively inclined to the outer boundary surface (11 b).
CN201921112294.1U 2019-07-16 2019-07-16 3D surfacing structure of impact type runner Active CN210509457U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921112294.1U CN210509457U (en) 2019-07-16 2019-07-16 3D surfacing structure of impact type runner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921112294.1U CN210509457U (en) 2019-07-16 2019-07-16 3D surfacing structure of impact type runner

Publications (1)

Publication Number Publication Date
CN210509457U true CN210509457U (en) 2020-05-12

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CN201921112294.1U Active CN210509457U (en) 2019-07-16 2019-07-16 3D surfacing structure of impact type runner

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110449761A (en) * 2019-07-16 2019-11-15 浙江富春江水电设备有限公司 A kind of impact runner 3D overlaying method and structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110449761A (en) * 2019-07-16 2019-11-15 浙江富春江水电设备有限公司 A kind of impact runner 3D overlaying method and structure

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