Steam turbine magnetic ring stator blade with deviation prevention structure

Abstract

The utility model discloses a steam turbine magnetic ring stator blade with an anti-deviation structure, which comprises a mounting shaft, a magnetic ring is mounted on the outer ring of the mounting shaft, a stator blade body is fixedly mounted on the outer ring of the magnetic ring, a fixing ring is mounted on the other side of the stator blade body, and the anti-deviation mechanism is arranged on the inner wall of the fixing ring. And the anti-deviation mechanism comprises clamping plates, elastic springs, a plug plate and mounting grooves, a plurality of mounting grooves are formed in the inner wall of the fixing ring, the elastic springs are fixedly mounted on the inner walls of the two sides of the mounting grooves, and the clamping plates are fixedly mounted at the other ends of the two elastic springs. A plug plate on a stator blade body is installed in an installation groove, the plug plate can extrude a clamping plate, at the moment, under the potential energy effect of an elastic spring, the plug plate can be clamped, the effect of stabilizing the stator blade body is achieved, the stator blade body is prevented from deviating in the working process, by clamping and stabilizing the plug plate, the stator blade body is stabilized, and the service life of the stator blade body is prolonged. And the working efficiency of the stator blade body is improved.

Description

Technical Field

[0001] The utility model relates to the field of steam turbine magnetic ring stationary blades, in particular to a steam turbine magnetic ring stationary blade with an anti-deviation structure. Background Art

[0002] The magnetic ring stator blades of the steam turbine are mainly used to guide the flow, and the stator blades are referred to as stator blades. The stator blades in the steam turbine not only guide the steam flow, but also accelerate the steam, thereby improving the working efficiency of the steam turbine.

[0003] At present, when the magnetic ring stator blades are working, when the airflow or water flow is too large, it will cause a certain impact force on the stator blades. Long-term impact can easily cause the stator blades to deviate, thereby reducing the working efficiency of the magnetic ring stator blades. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a steam turbine magnetic ring stator blade with an anti-deviation structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model proposes a steam turbine magnetic ring stator blade with an anti-deviation structure, comprising a mounting shaft, wherein a magnetic ring is mounted on the outer ring of the mounting shaft;

[0006] The outer ring of the magnetic ring is fixedly installed with a stationary blade body, and a fixing ring is installed on the other side of the stationary blade body. The inner wall of the fixing ring is provided with an anti-deviation mechanism, and the anti-deviation mechanism includes a clamping plate, an elastic spring, a plug plate, and a mounting groove. The inner wall of the fixing ring is provided with a plurality of mounting grooves, and elastic springs are fixedly installed on the inner walls on both sides of the plurality of mounting grooves, and a clamping plate is fixedly installed on the other ends of the two elastic springs, and a plug plate fixedly connected to the stationary blade body is clamped on one side of the two clamping plates close to each other.

[0007] In one example, a groove is formed at the beginning of the outer ring of the installation shaft, and a fixing plate fixedly connected to the magnetic ring is installed on the inner wall of the groove.

[0008] In one example, a mounting plate is fixedly mounted on the outer ring of the mounting shaft, a threaded rod is threadedly connected to one side of the mounting plate, and the threaded rod penetrates and extends outside the mounting plate.

[0009] In one example, a rotating knob is fixedly mounted on one end of the threaded rod.

[0010] In one example, a torsion spring is fixedly mounted on one side of the mounting plate, and the torsion spring is sleeved with the threaded rod.

[0011] In one example, a mounting hole is opened on one side of the magnetic ring, and the mounting hole is threadedly connected to the threaded rod.

[0012] The steam turbine magnetic ring stator blade with an anti-deviation structure proposed by the utility model can bring the following beneficial effects:

[0013] 1. A steam turbine magnetic ring stator blade with an anti-deviation structure has a plug plate on the stator blade body installed in a mounting groove. The plug plate will press the clamping plate. At this time, under the action of the potential energy of the elastic spring, the plug plate will be clamped to achieve a stabilizing effect on the stator blade body to prevent it from deflecting during operation. By clamping the plug plate firmly, the stator blade body is stabilized, thereby improving the working efficiency of the stator blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the fixing ring of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the clamping plate of the utility model;

[0018] Figure 4 It is a schematic diagram of the enlarged structure of structure A of the utility model.

[0019] In the figure: 1. Mounting shaft; 2. Magnetic ring; 3. Mounting hole; 4. Threaded rod; 5. Rotating knob; 6. Mounting plate; 7. Torsion spring; 8. Stationary blade body; 9. Fixing ring; 10. Groove; 11. Fixing plate; 12. Mounting slot; 13. Plug plate; 14. Elastic spring; 15. Clamping plate. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0021] like Figure 1 to Figure 4 As shown, the embodiment of the utility model provides a steam turbine magnetic ring stator blade with an anti-deviation structure, comprising a mounting shaft 1, and a magnetic ring 2 is mounted on the outer ring of the mounting shaft 1;

[0022] The outer ring of the magnetic ring 2 is fixedly installed with a stationary blade body 8, and a fixing ring 9 is installed on the other side of the stationary blade body 8. The inner wall of the fixing ring 9 is provided with an anti-deviation mechanism, and the anti-deviation mechanism includes a clamping plate 15, an elastic spring 14, a plug plate 13, and an installation groove 12. The inner wall of the fixing ring 9 is provided with a plurality of installation grooves 12, and the inner walls on both sides of the plurality of installation grooves 12 are fixedly installed with elastic springs 14, and the other ends of the two elastic springs 14 are fixedly installed with clamping plates 15, and the two clamping plates 15 are clamped with a plug plate 13 fixedly connected to the stationary blade body 8 on one side where the two clamping plates 15 are close to each other.

[0023] Specifically, a groove 10 is formed on the outer ring of the mounting shaft 1 , and a fixing plate 11 fixedly connected to the magnetic ring 2 is installed on the inner wall of the groove 10 . The fixing plate 11 is fixed by the groove 10 , the fixing plate 11 fixes the magnetic ring 2 , and the magnetic ring 2 fixes the stationary blade body 8 .

[0024] Specifically, a mounting plate 6 is fixedly mounted on the outer ring of the mounting shaft 1 , a threaded rod 4 is threadedly connected to one side of the mounting plate 6 , and the threaded rod 4 passes through and extends outside the mounting plate 6 , the threaded rod 4 is fixed by the mounting plate 6 , and the threaded rod 4 is threadedly connected to the mounting hole 3 .

[0025] Specifically, a rotating knob 5 is fixedly mounted on one end of the threaded rod 4 , and the rotating knob 5 is rotated to drive the threaded rod 4 to rotate, and is firmly fixed to the mounting hole 3 .

[0026] Specifically, a torsion spring 7 is fixedly installed on one side of the mounting plate 6, and the torsion spring 7 is sleeved with the threaded rod 4. When the magnetic ring 2 is offset by the torsion spring 7, the threaded rod 4 will squeeze the torsion spring 7 to stabilize the magnetic ring 2, thereby preventing the stationary blade body 8 from offset.

[0027] Specifically, a mounting hole 3 is opened on one side of the magnetic ring 2 , and the mounting hole 3 is threadedly connected to the threaded rod 4 , and the threaded rod 4 is threadedly connected through the mounting hole 3 .

[0028] Working principle: By installing the plug plate 13 on the static blade body 8 in the installation groove 12, the plug plate 13 will squeeze the clamping plate 15. At this time, under the action of the potential energy of the elastic spring 14, the plug plate 13 will be clamped to achieve the effect of stabilizing the static blade body 8 to prevent it from deviating during operation. By clamping and securing the plug plate 13, the static blade body 8 is stabilized, and then the rotating knob 5 is installed to drive the threaded rod 4 to rotate, which is threadedly connected to the installation hole 3 to stabilize the magnetic ring 2. When the magnetic ring 2 deviates during operation, the torsion spring 7 will be squeezed by the threaded rod 4. At this time, it will return to its original position under the action of its potential energy to achieve the anti-deflection effect.

[0029] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0030] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A steam turbine magnetic ring stator blade provided with an anti-deviation structure, comprising a mounting shaft (1), wherein a magnetic ring (2) is mounted on an outer ring of the mounting shaft (1); Features: The outer ring of the magnetic ring (2) is fixedly mounted with a stationary blade body (8), and a fixing ring (9) is mounted on the other side of the stationary blade body (8). The inner wall of the fixing ring (9) is provided with an anti-deviating mechanism, and the anti-deviating mechanism comprises a clamping plate (15), an elastic spring (14), a plug plate (13), and a mounting groove (12). The inner wall of the fixing ring (9) is provided with a plurality of mounting grooves (12), and elastic springs (14) are fixedly mounted on the inner walls of both sides of the plurality of mounting grooves (12). The other ends of the two elastic springs (14) are fixedly mounted with a clamping plate (15), and the two clamping plates (15) are clamped with a plug plate (13) fixedly connected to the stationary blade body (8) on one side close to each other.

2. The steam turbine magnetic ring stator blade with an anti-deviation structure according to claim 1, characterized in that: The outer ring of the installation shaft (1) begins to have a groove (10), and the inner wall of the groove (10) is mounted with a fixing plate (11) fixedly connected to the magnetic ring (2).

3. The steam turbine magnetic ring stator blade with an anti-deviation structure according to claim 2, characterized in that: A mounting plate (6) is fixedly mounted on the outer ring of the mounting shaft (1); a threaded rod (4) is threadedly connected to one side of the mounting plate (6); and the threaded rod (4) passes through and extends outside the mounting plate (6).

4. The steam turbine magnetic ring stator blade with an anti-deviation structure according to claim 3, characterized in that: A rotating knob (5) is fixedly mounted on one end of the threaded rod (4).

5. The steam turbine magnetic ring stator blade with an anti-deviation structure according to claim 3, characterized in that: A torsion spring (7) is fixedly mounted on one side of the mounting plate (6), and the torsion spring (7) is sleeved with the threaded rod (4).

6. The steam turbine magnetic ring stator blade with an anti-deviation structure according to claim 1, characterized in that: A mounting hole (3) is provided on one side of the magnetic ring (2), and the mounting hole (3) is threadedly connected to the threaded rod (4).

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