CN211287947U

CN211287947U - Wear-resisting cast joint structure stator of hydraulic turbine

Info

Publication number: CN211287947U
Application number: CN201921897853.4U
Authority: CN
Inventors: 蔡雪和
Original assignee: Zhejiang Xunhe Machinery Manufacture Co ltd
Current assignee: Zhejiang Xunhe Machinery Manufacture Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-08-18
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a wear-resisting cast joint structure stator of hydraulic turbine relates to hydraulic turbine stator technical field, including the center pin, the outside of center pin is provided with the support ring, one side of support ring is provided with first bracing piece, one side that first bracing piece was kept away from to the support ring is provided with the second bracing piece, the outside of first bracing piece and second bracing piece all is provided with multiunit branch, the one end that the support ring was kept away from to first bracing piece is provided with first lug. The utility model discloses a first lug welding is in the one end of first supporting block, with the one end of second lug welding at the second bracing piece, wrap up the aluminium alloy plate in the outside of first bracing piece, second bracing piece, branch to set up the filling layer between aluminium alloy plate and first bracing piece, second bracing piece, branch, the bulk quality of the at utmost reduction stator when making the support nature of stator better, thereby reduce the problem of stator production difficulty, the people's of being convenient for installation.

Description

Wear-resisting cast joint structure stator of hydraulic turbine

Technical Field

The utility model relates to a hydraulic turbine stator technical field specifically is a wear-resisting cast joint structure stator of hydraulic turbine.

Background

The guide vane of the water turbine is a key part of the water distributor of the water turbine; the water turbine water distributor controls the total water flow flowing to the wheel blades of the water turbine wheel on one hand and annular impulse on the other hand through a plurality of water turbine guide vanes which are annularly distributed around the water turbine wheel, converts the kinetic energy of fluid in the volute into static pressure energy flowing to the wheel blades of the wheel, and realizes the shutdown function of the water turbine in an emergency state through the guide vanes.

The guide vane of the existing water turbine is heavy in weight, difficult in installation and manufacturing process, seriously affects the working efficiency of installation and manufacture, and when the guide vane is used for a long time, because the water contains a large amount of broken stone particles, the guide vane is continuously abraded, the service life of the guide vane is shorter, the use effect of the guide vane is influenced, and the use efficiency of the guide vane of the water turbine is poorer.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the guide vane with the wear-resistant cast-weld structure of the water turbine is provided for solving the problems that the guide vane is difficult to install and manufacture, the work efficiency of installation and manufacture is seriously influenced, a large amount of broken stone particles are contained in water, the guide vane is continuously abraded, and the service life of the guide vane is short.

In order to achieve the above object, the utility model provides a following technical scheme: a guide vane of a wear-resistant cast-weld structure of a water turbine comprises a central shaft, wherein a support ring is arranged on the outer side of the central shaft, a first support rod is arranged on one side of the support ring, a second support rod is arranged on one side of the support ring, which is far away from the first support rod, a plurality of groups of support rods are arranged on the outer sides of the first support rod and the second support rod, a first lug is arranged at one end of the first support rod, which is far away from the support ring, a second lug is arranged at one end of the second support rod, which is far away from the support ring, an aluminum alloy plate is arranged on the outer sides of the first support rod, the second support rod and the support rods, a filling layer is arranged among the aluminum alloy plate, the first support rod, the second support rod and the support rods, a lower shaft neck plating surface is arranged at the top of the outer, the inside of lower axle journal plating surface is provided with the draw-in groove, the inboard of draw-in groove is provided with multiunit tooth mouth.

Preferably, the both ends of aluminium alloy plate all are provided with the connecting block, the face is plated through connecting block and aluminium alloy plate fixed connection to the journal down, well journal plate the face through connecting block and aluminium alloy plate fixed connection.

Preferably, the first support rod and the second support rod are welded to the support ring, and the support rod is fixedly connected with the support ring through the first support rod and the second support rod.

Preferably, the ends of the first lug and the second lug, which are far away from the support ring, are arc-shaped structures, the first lug is connected with the first support rod in a welding manner, and the second lug is connected with the second support rod in a welding manner.

Preferably, the filling layer comprises sponge and rubber, and the outer side of the aluminum alloy plate is coated with wear-resistant waterproof paint.

Preferably, the cross-sectional area of the inside of the aluminum alloy plate near one end of the second projection is larger than the cross-sectional area near one end of the first projection.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a first lug welding is in the one end of first supporting block, with the one end of second lug welding at the second bracing piece, wrap up aluminum alloy plate in first bracing piece, the second bracing piece, the outside of branch, and at aluminum alloy plate and first bracing piece, the second bracing piece, set up the filling layer between the branch, the at utmost reduce the whole quality of stator when making the support nature of stator better, thereby reduce the problem of stator production difficulty, be convenient for people's installation, through making the stator main part with aluminum alloy plate, aluminum alloy plate has hardness height, the characteristics that plasticity is strong, better wearability has, again through mutually supporting with the wear-resisting waterproof coating on aluminum alloy plate surface, the wearability of stator main part has been improved, reduce the corruption of water to the metal simultaneously, the life of stator has been improved.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention.

In the figure: 1. a central shaft; 2. a support ring; 3. a first support bar; 4. a second support bar; 5. a strut; 6. a first bump; 7. a second bump; 8. aluminum alloy plate; 9. a filling layer; 10. connecting blocks; 11. plating the surface of the lower shaft neck; 12. plating the middle shaft neck; 13. plating the upper journal; 14. a card slot; 15. a tooth mouth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a guide vane of a wear-resistant cast-weld structure of a water turbine comprises a central shaft 1, a support ring 2 is arranged on the outer side of the central shaft 1, a first support rod 3 is arranged on one side of the support ring 2, a second support rod 4 is arranged on one side of the support ring 2 away from the first support rod 3, a plurality of groups of support rods 5 are arranged on the outer sides of the first support rod 3 and the second support rod 4, a first lug 6 is arranged at one end of the first support rod 3 away from the support ring 2, a second lug 7 is arranged at one end of the second support rod 4 away from the support ring 2, aluminum alloy plates 8 are arranged on the outer sides of the first support rod 3, the second support rod 4 and the support rods 5, a filling layer 9 is arranged between the aluminum alloy plate 8 and the first support rod 3, the second support rod 4 and the support rods 5, a lower journal plating surface 11 is arranged on the top of the outer side of the central shaft, the bottom in the 1 outside of center pin is provided with axle journal plated surface 13, and the inside of lower axle journal plated surface 11 is provided with draw-in groove 14, and the inboard of draw-in groove 14 is provided with multiunit tooth mouth 15, is convenient for fix the stator, prevents that the stator from independently taking place to rotate, has improved the stability of stator.

Please refer to fig. 1 and fig. 2, two ends of the aluminum alloy plate 8 are both provided with a connecting block 10, the lower journal plating surface 11 is fixedly connected with the aluminum alloy plate 8 through the connecting block 10, and the middle journal plating surface 12 is fixedly connected with the aluminum alloy plate 8 through the connecting block 10, so as to fix the aluminum alloy plate 8 firmly and prevent the aluminum alloy plate 8 from falling off.

Please refer to fig. 1, the first support rod 3 and the second support rod 4 are welded to the support ring 2, so that the first support rod 3 and the second support rod 4 are fixed to the support ring 2, and the support rod 5 is fixed to the support ring 2 through the first support rod 3 and the second support rod 4, so as to manufacture the aluminum alloy plate 8.

Please refer to fig. 1, the ends of the first bump 6 and the second bump 7 far away from the support ring 2 are arc-shaped structures to avoid damage to the aluminum alloy plate 8, the first bump 6 is connected to the first support rod 3 by welding, and the second bump 7 is connected to the second support rod 4 by welding, so that the first bump 6 and the second bump 7 are fixed firmly.

Please refer to fig. 1 and fig. 2, the filling layer 9 is made of sponge and rubber to reduce the overall quality of the guide vane, and the outer side of the aluminum alloy plate 8 is coated with the wear-resistant waterproof coating to improve the wear resistance and the waterproof property of the guide vane and prolong the service life of the guide vane.

Please refer to fig. 1 and fig. 3, the cross-sectional area of the inner portion of the aluminum alloy plate 8 near the second protrusion 7 is larger than the cross-sectional area near the first protrusion 6, so as to form a wing-shaped structure, thereby improving the flow guiding effect of the guide vane and facilitating the use of people.

The working principle is as follows: before use, the support ring 2 is sleeved outside the central shaft 1, the first support rod 3 and the second support rod 4 are respectively welded on two sides of the support ring 2, the support rod 5 is respectively welded on the outer sides of the first support rod 3 and the second support rod 4, the first lug 6 is welded at one end of the first support rod 3, the second lug 7 is welded at one end of the second support rod 4, the aluminum alloy plate 8 is wrapped on the outer sides of the first support rod 3, the second support rod 4 and the support rod 5, and the filling layer 9 is arranged between the aluminum alloy plate 8 and the first support rod 3, the second support rod 4 and the support rod 5, so that the whole quality of the guide vane is reduced to the maximum extent while the support performance of the guide vane is better, the problem of difficult production of the guide vane is reduced, the installation of people is convenient, the lower shaft neck plating surface 11 and the aluminum alloy plate 8 are fixed through the connecting block 10, and the central shaft neck plating surface 12 and the aluminum alloy plate 8 are fixed through the, prevent that aluminum alloy plate 8 from taking place to rotate, aluminum alloy plate 8 has the characteristics that hardness is high, plasticity is strong, has better wearability, and the rethread is mutually supported with the wear-resisting water proof coating on aluminum alloy plate 8 surface, has improved the wearability of stator main part, reduces the corruption of water to the metal simultaneously, has improved the life of stator.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a wear-resisting cast joint structure stator of hydraulic turbine, includes center pin (1), its characterized in that: the outer side of the central shaft (1) is provided with a support ring (2), one side of the support ring (2) is provided with a first support rod (3), one side of the support ring (2) far away from the first support rod (3) is provided with a second support rod (4), the outer sides of the first support rod (3) and the second support rod (4) are provided with a plurality of groups of support rods (5), one end of the first support rod (3) far away from the support ring (2) is provided with a first lug (6), one end of the second support rod (4) far away from the support ring (2) is provided with a second lug (7), the outer sides of the first support rod (3), the second support rod (4) and the support rods (5) are provided with aluminum alloy plates (8), and filling layers (9) are arranged among the aluminum alloy plates (8), the first support rod (3), the second support rod (4) and the support rods (, the top in the center pin (1) outside is provided with down axle journal plating surface (11), the bottom that the center pin (1) outside is located aluminum alloy plate (8) is provided with well axle journal plating surface (12), the bottom in the center pin (1) outside is provided with upper axle journal plating surface (13), the inside of axle journal plating surface (11) is provided with draw-in groove (14) down, the inboard of draw-in groove (14) is provided with multiunit tooth mouth (15).

2. The wear-resistant cast-weld structural guide vane of a water turbine as claimed in claim 1, wherein: the both ends of aluminium alloy plate (8) all are provided with connecting block (10), axle journal plating surface (11) are through connecting block (10) and aluminium alloy plate (8) fixed connection down, axle journal plating surface (12) are through connecting block (10) and aluminium alloy plate (8) fixed connection.

3. The wear-resistant cast-weld structural guide vane of a water turbine as claimed in claim 1, wherein: first bracing piece (3) and second bracing piece (4) and support ring (2) welded connection, branch (5) are through first bracing piece (3) and second bracing piece (4) and support ring (2) fixed connection.

4. The wear-resistant cast-weld structural guide vane of a water turbine as claimed in claim 1, wherein: the one end that support ring (2) were kept away from to first lug (6) and second lug (7) is circular-arc structure, first lug (6) and first bracing piece (3) welded connection, second lug (7) and second bracing piece (4) welded connection.

5. The wear-resistant cast-weld structural guide vane of a water turbine as claimed in claim 1, wherein: the filling layer (9) comprises sponge and rubber, and the outer side of the aluminum alloy plate (8) is coated with wear-resistant waterproof paint.

6. The wear-resistant cast-weld structural guide vane of a water turbine as claimed in claim 1, wherein: the cross sectional area of one end, close to the second lug (7), of the inside of the aluminum alloy plate (8) is larger than the cross sectional area of one end, close to the first lug (6).