CN214577218U

CN214577218U - High-frequency magnetic ring blade of steam turbine

Info

Publication number: CN214577218U
Application number: CN202120895536.XU
Authority: CN
Inventors: 王通; 刘峰; 马成辉
Original assignee: Jining Huayuan Thermal Power Co Ltd
Current assignee: Jining Huayuan Thermal Power Co Ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-11-02
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a high frequency magnetic ring blade of steam turbine, including the main shaft, the main shaft has seted up first dead slot inside, the first dead slot inboard is provided with disassembly body, disassembly body includes the turning block, the turning block is located the first dead slot inboard, and the turning block rotates and connects in the main shaft, the turning block outside fixedly connected with connecting block, the second dead slot has been seted up inside the connecting block, the inboard fixedly connected with spring of second dead slot, the spring other end terminal surface fixedly connected with fixture block, the inboard swing joint of first dead slot has the blade, a draw-in groove has been seted up on a side surface of the blade, the inboard swing joint of draw-in groove is in a side surface of fixture block, a section of blade is located the main shaft outside; the utility model discloses a when the disassembly body that sets up can guarantee that the contact between main shaft and the blade keeps certain intensity, let the blade can be better dismantle and maintain or safeguard, let the whole more decentralization of device, the part of being convenient for change reduces cost of maintenance, improves the user and uses and feel.

Description

High-frequency magnetic ring blade of steam turbine

Technical Field

The utility model relates to a blade technical field especially relates to high frequency magnetic ring blade of steam turbine.

Background

The stationary blade is a stationary blade fixed to a diaphragm or a vane carrier ring. The stator vanes not only guide the steam flow in the steam turbine, but also accelerate the steam. The static blades in the steam chamber are called nozzles, and the static blades are used as guide blades in a speed stage to change the direction of the steam flow into the next row of movable blades;

the utility model discloses a monolithic magnetic ring stator blade of steam turbine like utility model discloses of grant publication No. CN210509300U, it can guarantee the firm installation intensity of stator blade outside the main shaft, but does not solve the too loaded down with trivial details problem when the blade is replaced, for this reason we propose the high frequency magnetic ring blade of steam turbine.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above object, the utility model adopts the following technical scheme: the high-frequency magnetic ring blade of the steam turbine comprises a main shaft, wherein a first empty groove is formed in the main shaft, a dismounting mechanism is arranged on the inner side of the first empty groove and comprises a rotating block, the rotating block is located on the inner side of the first empty groove and is rotatably connected to the main shaft, a connecting block is fixedly connected to the outer side of the rotating block, a second empty groove is formed in the connecting block, a spring is fixedly connected to the inner side of the second empty groove, a clamping block is fixedly connected to the end face of the other end of the spring, a blade is movably connected to the inner side of the first empty groove, a clamping groove is formed in the surface of one side of the blade, the inner side of the clamping groove is movably connected to the surface of one side of the clamping block, and one section of the blade is located on the outer side of the main shaft.

As a preferred technical scheme of the utility model, still include complementary unit, complementary unit includes the insertion groove, the insertion groove is seted up in commentaries on classics piece top surface, the inboard fixedly connected with lug of insertion groove, the third dead slot has been seted up to the lug inside, the inboard fixedly connected with magnetic path of third dead slot.

As the utility model discloses a preferred technical scheme, anti-skidding line has been seted up in the fixture block outside, the spring outside is provided with the anti-rust paint.

As a preferred technical scheme of the utility model, the connecting block is the trapezium structure, just the connecting block is cyclic annular distribution around changeing the piece.

As a preferred technical scheme of the utility model, blade other end terminal surface fixedly connected with outer lane, the blade is the same with connecting block quantity.

As a preferred technical solution of the present invention, the bump is provided three around the inner side of the insertion groove, and three the sum of the circumference of the bump is forty-five percent of the circumference of the insertion groove

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model can ensure the connection between the main shaft and the blade to keep certain strength through the arranged dismounting mechanism, and simultaneously, the blade can be better dismounted and maintained, the whole device can be more dispersed, the parts can be conveniently exchanged, the maintenance cost is reduced, and the use feeling of users is improved;

(2) the utility model discloses an complementary unit who sets up, the dismantlement of blade is carried out to the assistance disassembly body that can be better, and when need not to dismantle the blade, and this device whole outward appearance is not influenced, levels more.

Drawings

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

fig. 2 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

fig. 3 is an enlarged schematic structural view of the present invention at B in fig. 1;

fig. 4 is a schematic perspective view of the present invention;

wherein, the names corresponding to the reference numbers are:

1. a main shaft; 2. a blade; 3. an outer ring; 4. rotating the block; 11. a first empty slot; 21. a card slot; 41. connecting blocks; 42. a second empty slot; 43. a spring; 44. a clamping block; 46. inserting the groove; 47. a bump; 48. a third empty slot; 49. a magnetic block.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

Example (b):

as shown in fig. 1, 2, and 4, a high-frequency magnetic ring blade of a steam turbine includes a main shaft 1, a first hollow groove 11 is formed in the main shaft 1, a dismounting mechanism is disposed inside the first hollow groove 11, the dismounting mechanism includes a rotating block 4, the rotating block 4 is located inside the first hollow groove 11, the rotating block 4 is rotatably connected to the main shaft 1, a connecting block 41 is fixedly connected to an outer side of the rotating block 4, a second hollow groove 42 is formed in the connecting block 41, a spring 43 is fixedly connected to an inner side of the second hollow groove 42, a clamping block 44 is fixedly connected to an end face of the other end of the spring 43, a blade 2 is movably connected to an inner side of the first hollow groove 11, a clamping groove 21 is formed in a side surface of the blade 2, an inner side of the clamping groove 21 is movably connected to a side surface of the clamping block 44, and a section of the blade 2 is located outside the main shaft 1;

when the blade 2 needs to be detached, the rotating block 4 is rotated to drive the connecting block 41 to rotate, the clamping block 44 touches the edge of the blade 2 and is stressed to extrude the spring 43, the spring 43 contracts, the clamping block 44 leaves the clamping groove 21 to return to the second empty groove 42, and then the blade 2 is rotated to be separated from the first empty groove 11; can guarantee when the contact between main shaft 1 and the blade 2 keeps certain intensity, let the blade 2 can be better dismantle and maintain or maintain, let the whole more decentralization of device, be convenient for change the part, reduce cost of maintenance, improve user's use and feel.

In other embodiments, as shown in fig. 1 and fig. 3, the present embodiment discloses that the present invention further includes an auxiliary mechanism, the auxiliary mechanism includes an insertion groove 46, the insertion groove 46 is opened on the top surface of the rotating block 4, a protrusion 47 is fixedly connected to the inner side of the insertion groove 46, a third empty groove 48 is formed inside the protrusion 47, and a magnetic block 49 is fixedly connected to the inner side of the third empty groove 48;

after the tool is inserted into the insertion groove 46, the tool is rotated to enable part of the tool to enter the third empty groove 48 to be combined with the magnetic block 49, and the tool can be rotated to drive the rotating block 4 to rotate; the disassembly of blade 2 can be better assisted by the disassembly mechanism, and when blade 2 is not required to be disassembled, the whole appearance of the device is not affected and is smoother.

In other embodiments, as shown in fig. 2, the embodiment discloses that the outer side of the clamping block 44 is provided with anti-slip threads, and the outer side of the spring 43 is provided with anti-rust paint; through this design, can let the friction between fixture block 44 and the draw-in groove 21 increase, can not deviate under no very big external force influence again, prolong spring 43 life simultaneously.

In other embodiments, as shown in fig. 1, the connection block 41 has a trapezoidal structure, and the connection blocks 41 are annularly distributed around the rotation block 4; with this design, the occupied space within the main shaft 1 can be reduced while contacting the blades 2.

In other embodiments, as shown in fig. 1, the present embodiment discloses that the end surface of the other end of the blade 2 is fixedly connected with the outer ring 3, and the number of the blades 2 is the same as that of the connecting blocks 41; through this design, let this device more complete, every blade 2 can both be blocked by connecting block 41 respectively simultaneously.

In other embodiments, as shown in fig. 3, three bumps 47 are disposed around the inner side of the insertion slot 46, and the sum of the circumferences of the three bumps 47 is forty-five percent of the circumference of the insertion slot 46; by this design, the tool can be more tightly connected to the insertion slot 46, while allowing more space for movement.

The above embodiment is only one of the preferred embodiments of the present invention, and all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention are consistent with the present invention and all the technical problems solved by the present invention should be included in the protection scope of the present invention.

Claims

1. High frequency magnetic ring blade of steam turbine, including main shaft (1), its characterized in that: a first empty groove (11) is arranged in the main shaft (1), a dismounting mechanism is arranged at the inner side of the first empty groove (11), the disassembly mechanism comprises a rotating block (4), the rotating block (4) is positioned at the inner side of the first empty groove (11), the rotating block (4) is rotationally connected with the main shaft (1), the outer side of the rotating block (4) is fixedly connected with a connecting block (41), a second empty groove (42) is formed in the connecting block (41), a spring (43) is fixedly connected to the inner side of the second empty groove (42), a clamping block (44) is fixedly connected with the end face of the other end of the spring (43), the inner side of the first empty groove (11) is movably connected with a blade (2), the novel spindle is characterized in that a clamping groove (21) is formed in the surface of one side of the blade (2), the inner side of the clamping groove (21) is movably connected to the surface of one side of the clamping block (44), and one section of the blade (2) is located on the outer side of the spindle (1).

2. The high frequency magnetic ring blade for steam turbine as claimed in claim 1, wherein: still include complementary unit, complementary unit includes insertion slot (46), insertion slot (46) are seted up in commentaries on classics piece (4) top surface, insertion slot (46) inboard fixedly connected with lug (47), third dead slot (48) have been seted up to lug (47) inside, third dead slot (48) inboard fixedly connected with magnetic path (49).

3. The high frequency magnetic ring blade for steam turbine as claimed in claim 1, wherein: anti-skid lines are formed in the outer side of the clamping block (44), and anti-rust paint is arranged on the outer side of the spring (43).

4. The high frequency magnetic ring blade for steam turbine as claimed in claim 1, wherein: the connecting block (41) is of a trapezoidal structure, and the connecting block (41) is annularly distributed around the rotating block (4).

5. The high frequency magnetic ring blade for steam turbine as claimed in claim 4, wherein: the end face of the other end of the blade (2) is fixedly connected with an outer ring (3), and the number of the blades (2) is the same as that of the connecting blocks (41).

6. The high frequency magnetic ring blade for steam turbine as claimed in claim 2, wherein: the protrusions (47) are arranged in three numbers around the inner side of the insertion groove (46), and the sum of the circumferences of the three protrusions (47) is forty-five percent of the circumference of the insertion groove (46).