A steam turbine rotor support device

Abstract

The present application discloses a steam turbine rotor support device, which relates to the field of steam turbine maintenance, and comprises a device bottom plate, a vertical support mechanism is arranged on the top of the device bottom plate, and a clamping mechanism is arranged on the top of the device bottom plate. Through the above-mentioned structural arrangement, the steam turbine rotor support device can realize synchronous rotation of the threaded rod by rotating the knob, thereby driving the driving plate to move along the direction of the threaded rod, thereby driving the fixed plate to fit to the side wall of the rotor through the sliding plate, so that the rotor is squeezed on multiple surfaces, so that the rotor is always in a stationary state, thereby facilitating the staff to repair other parts of the steam turbine, and the rotor will not rotate due to the touch of the staff.

Description

Technical Field

[0001] The present application relates to the field of steam turbine maintenance, and in particular to a steam turbine rotor support device. Background Art

[0002] As a key and important equipment in the secondary circuit of a nuclear power plant, the steam turbine is a prime mover that converts the thermal energy of nuclear steam into mechanical energy and drives the generator to rotate.

[0003] For example, the rotor support device for the maintenance of a steam turbine bearing in Publication No. 202021834471.X includes a bracket with a support structure, a semicircular support ring and a stud; a row of through holes is opened on the left and right sides of the bracket, and a stud runs through each through hole; threaded holes are opened on both sides of the support ring, and the support ring is connected to the stud through the threaded holes, so as to be installed under the bracket. However, the following deficiencies still exist in actual use:

[0004] When the steam turbine rotor support device of the above patent is actually used, the rotor is only lifted from the bottom and cannot be fixed. As a result, the rotor may rotate due to the touch of the staff during the inspection and maintenance process, making it inconvenient to inspect and repair other parts of the steam turbine. Utility Model Content

[0005] In order to facilitate maintenance work by staff, the present application provides a steam turbine rotor support device.

[0006] A steam turbine rotor support device provided in this application adopts the following technical solution:

[0007] A steam turbine rotor support device comprises a device bottom plate, a vertical support mechanism is arranged on the top of the device bottom plate, and a clamping mechanism is arranged on the top of the device bottom plate;

[0008] The vertical support mechanism comprises a vertical box, a telescopic plate is slidably connected inside the vertical box, and a locking column is movably penetrated through the side wall of the telescopic plate;

[0009] The clamping mechanism comprises two sliding plates, a driving plate is fixedly connected between the two sliding plates, and one end of the sliding plate passing through the arc-shaped side plate is fixedly connected to a fixing plate.

[0010] By adopting the above technical solution, it is possible to prevent the staff from causing the rotor to rotate when performing maintenance, thereby affecting the normal maintenance work.

[0011] Preferably, the vertical box is fixedly connected to the top of the device bottom plate through a diagonal support plate fixedly connected to the side wall of the vertical box.

[0012] By adopting the above technical solution, the bottom of the device base plate is in contact with the ground, thereby providing vertical support for the overall structure.

[0013] Preferably, one end of the locking column away from the telescopic plate is fixedly connected to a pulling ring, a support plate is movably penetrated through the outer wall of the locking column close to the pulling ring, and a connecting piece is fixedly connected to the top of the telescopic plate.

[0014] By adopting the above technical solution, the vertical height of the upper structure can be adjusted through the vertical movement of the telescopic plate, so that it is suitable for maintenance environments in different situations.

[0015] Preferably, the clamping mechanism further comprises a clamping block fixedly connected to the top of the connecting member, a screw 1 is threadedly connected through a side wall of the clamping block, and one end of the screw 1 extends to the outer wall and is threadedly connected to a nut 1.

[0016] By adopting the above technical solution, it is convenient for workers to thread-fasten the side wall of the clamping block by screw one.

[0017] Preferably, the outer wall of the clamping block is clamped with a connecting block, the side wall of the connecting block is threadedly connected to a screw, the top of the connecting block is fixedly connected to an arc-shaped bottom plate, the side wall of the arc-shaped bottom plate is fixedly connected to a rotating block, the middle part of the rotating block is rotatably connected to a connecting plate, and the side wall of the connecting plate is fixedly connected to a horizontal plate.

[0018] By adopting the above technical solution, the rotor is supported from the bottom of the rotor through the connecting block, so that the rotor will not fall suddenly when the staff performs maintenance.

[0019] Preferably, a curved side plate is fixedly connected to a side of the horizontal plate away from the connecting plate, the bottom of the curved side plate is fitted with the top of the curved bottom plate, and the side wall of the curved side plate movably passes through the sliding plate.

[0020] By adopting the above technical solution, the rotor is fastened from the upper end of the rotor through the arc-shaped side plate, and a complete circular ring is formed by the arc-shaped side plate being fitted with the arc-shaped bottom plate.

[0021] Preferably, a threaded rod is threaded through the top center thread of the driving plate, one end of the threaded rod close to the arcuate side plate is non-penetratingly rotatably connected to the arcuate side plate, and one end of the threaded rod away from the arcuate side plate is fixedly connected to a knob.

[0022] By adopting the above technical solution, the driving plate can be driven to move along the direction of the threaded rod by rotating the knob.

[0023] Preferably, one side of the fixing plate close to the arc-shaped side plate is fitted with the inner wall of the arc-shaped side plate, a vertical block is fixedly connected to the top of the arc-shaped side plate, two side walls of the vertical blocks are threadedly connected with screw 2, and screw 2 passes through the other end of the two vertical blocks, extends to the outside and is threadedly connected with nut 2.

[0024] By adopting the above technical solution, the threaded connection between the second screw and the second nut enables the two vertical blocks to fit tightly.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The threaded rod is driven to rotate synchronously by rotating the knob, thereby driving the driving plate to move along the direction of the threaded rod, thereby driving the fixed plate to fit the rotor side wall through the sliding plate, so that the rotor is squeezed on multiple surfaces, so that the rotor is always in a stationary state, which makes it convenient for the staff to inspect other parts of the steam turbine, and the rotor will not rotate due to the touch of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an overall display diagram of the steam turbine rotor support device of this application;

[0028] Figure 2 This is an overall display diagram of the steam turbine rotor support device of the present application from another perspective;

[0029] Figure 3 This is a partial illustration of the vertical box of the steam turbine rotor support device of this application;

[0030] Figure 4 This is a partial illustration of the locking column of the steam turbine rotor support device of this application;

[0031] Figure 5 This is a partial exploded view of a screw of the turbine rotor support device of this application;

[0032] Figure 6 This is a partial illustration of the connection plate of the steam turbine rotor support device of this application;

[0033] Figure 7 This is a partial display diagram of the arc plate of the turbine rotor support device of this application.

[0034] Reference numerals: 1, device bottom plate;

[0035] 2. Vertical support mechanism; 21. Vertical box; 22. Diagonal support plate; 23. Telescopic plate; 24. Locking column; 25. Pull ring; 26. Support plate; 27. Connector;

[0036] 3. Clamping mechanism; 31. Snap-on block; 32. Screw one; 33. Nut one; 34. Connecting block; 35. Arc bottom plate; 36. Rotating block; 37. Connecting plate; 38. Horizontal plate; 39. Arc side plate; 310. Sliding plate; 311. Driving plate; 312. Threaded rod; 313. Knob; 314. Fixed plate; 315. Vertical block; 316. Screw two; 317. Nut two. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-7 This application is described in further detail.

[0038] The embodiment of the present application discloses a steam turbine rotor supporting device.

[0039] Example 1

[0040] Reference Figure 1 A steam turbine rotor supporting device comprises a device bottom plate 1, a vertical supporting mechanism 2 is arranged on the top of the device bottom plate 1, and a clamping mechanism 3 is arranged on the top of the device bottom plate 1.

[0041] Through the above arrangement, the staff places the device base plate 1 at the bottom of the rotor.

[0042] Reference Figure 2 , 3, 4, the vertical support mechanism 2 includes a vertical box 21 fixedly connected to the top of the device bottom plate 1, a square vertical slide groove is opened inside the vertical box 21, the outer wall of the telescopic plate 23 is fitted with the inner wall of the square vertical slide groove opened inside the vertical box 21, so that the telescopic plate 23 is slidably connected to the vertical box 21, and the side wall of the telescopic plate 23 is vertically opened with a plurality of circular through holes, and the locking column 24 is movable through the side wall of the telescopic plate 23. The circular through holes are opened vertically, so that the locking column 24 is slidably connected to the telescopic plate 23, and the upper end of the side wall of the vertical box 21 is connected to the top of the diagonal support plate 22 The bottom of the diagonal support plate 22 is fixedly connected to the top of the device bottom plate 1, and the diagonal support plate 22 is inclined so as to support the telescopic plate 23 from the side wall. The end of the locking column 24 away from the telescopic plate 23 is fixedly connected to the side of the pulling ring 25 close to the telescopic plate 23. A circular through hole is penetrated through the upper end of the side wall of the support plate 26. The side of the locking column 24 close to the pulling ring 25 movably penetrates the circular through hole penetrated through the upper end of the side wall of the support plate 26, so that the support plate 26 is slidably connected to the locking column 24, and the top of the telescopic plate 23 is fixedly connected to the bottom of the connecting piece 27.

[0043] Through the above arrangement, the staff will lift the connecting piece 27, and the connecting piece 27 will drive the telescopic plate 23 to move vertically. The telescopic plate 23 is limited by the vertical box 21. When it moves to the required height, the staff will push the pulling ring 25, and the pulling ring 25 will drive the locking column 24 to move horizontally so that the locking column 24 slides through the circular hole of the corresponding height on the side wall of the telescopic plate 23, thereby locking the height of the telescopic plate 23.

[0044] Reference Figure 5 The clamping mechanism 3 includes two sliding plates 310, and the side wall between the two sliding plates 310 is fixedly connected to the ends of both sides of the driving plate 311. One end of the sliding plate 310 passes through the arc-shaped side plate 39 and is fixedly connected to the side of the fixed plate 314 close to the arc-shaped side plate 39. The clamping mechanism 3 also includes a clamping block 31 fixedly connected to the top of the connecting member 27. The side wall of the clamping block 31 is penetrated with an internal threaded hole. A screw 32 passes through the internal threaded hole opened in the side wall of the clamping block 31 and is threadedly connected with the screw 32. The screw 32 threadedly passes through the internal threaded hole opened in the side wall of the clamping block 31 and extends to one end of the outside and is threadedly connected with a nut 33. A square The outer wall of the clamping block 31 fits with the square groove at the bottom of the connecting block 34, so that the clamping block 31 is clamped with the connecting block 34, and the arc bottom plate 35 and the arc side plate 39 of the clamping mechanism 3 are conveniently disassembled and replaced by screws 32 and nuts 33. By adopting arc bottom plates 35 and arc side plates 39 of different arc sizes, the clamping mechanism 3 can adapt to rotors with different diameter sections. The side wall of the connecting block 34 is penetrated with an internal threaded hole, and screws 32 penetrate the internal threaded hole opened in the side wall of the connecting block 34, so that the connecting block 34 is threadedly connected with screws 32, and the top of the connecting block 34 is fixedly connected with the bottom of the arc bottom plate 35.

[0045] The screw 32 is then rotated through the side wall of one side of the connecting block 34 and then rotated through the clamping block 31 and then rotated out from the other side wall of the connecting block 34, thereby completing the threaded connection between the screw 32 and the connecting block 34 and the clamping block 31. The nut 33 is then rotated again to make the nut 33 threadably connected to the connecting block 34, thereby fixing the connecting block 34 to the clamping block 31. When the connecting member 27 is lifted vertically, the connecting member 27 will drive the clamping block 31 to lift synchronously, and then the connecting member 27 will also drive the connecting block 34 to lift vertically, so that the connecting block 34 drives the arc bottom plate 35 to lift vertically, so that the top of the arc bottom plate 35 fits with the bottom of the rotor. When the top of the arc bottom plate 35 is completely fitted with the bottom of the rotor, it is the height required for the support of the telescopic plate 23.

[0046] refer to Figure 6, 7, the side wall of the arc bottom plate 35 is fixedly connected to the side of the rotating block 36 close to the arc bottom plate 35, the middle part of the rotating block 36 is rotatably connected to the bottom of the connecting plate 37, the side wall of the connecting plate 37 is fixedly connected to the side of the horizontal plate 38 close to the connecting plate 37, and the side of the horizontal plate 38 away from the connecting plate 37 is fixedly connected to the outer wall of the arc side plate 39, the bottom of the arc side plate 39 is fitted with the top of the arc bottom plate 35, and the bottom of the arc side plate 39 and the top of the arc bottom plate 35 are both set to smooth surfaces, so as not to cause wear on the side wall of the rotor and not to affect the normal use of the rotor, the side wall of the arc side plate 39 is penetrated with a square groove, and the sliding plate 310 is slidably connected with the square groove penetrated through the side wall of the arc side plate 39, so that the sliding plate 310 is slidably connected with the arc side plate 39, and the center top of the driving plate 311 is penetrated with an internal threaded hole, and the threaded rod 312 is connected to the driving plate 3 The inner threaded hole 312 is threadedly connected through the center top of 11, and the end of the threaded rod 312 close to the arc-shaped side plate 39 is non-penetratingly rotatably connected to the outer wall of the arc-shaped side plate 39. The rotation connection between the threaded rod 312 and the arc-shaped side plate 39 is set to a smooth surface, so that the connection is more stable. The end of the threaded rod 312 away from the arc-shaped side plate 39 is fixedly connected to the end of the knob 313 close to the threaded rod 312. The side of the fixing plate 314 close to the arc-shaped side plate 39 is fitted with the inner wall of the arc-shaped side plate 39. The top of the arc-shaped side plate 39 is fixedly connected to the bottom of the vertical block 315. A threaded hole is penetrated through the side wall of the vertical block 315. The second screw 316 is threadedly connected to the threaded hole penetrated through the side wall of the vertical block 315, so that the second screw 316 is threadedly connected to the vertical block 315, and the other end of the second screw 316 passes through the vertical block 315 and is threadedly connected to the center of the second nut 317.

[0047] With the above arrangement, the staff then flips the arc-shaped side panel 39, and the arc-shaped side panel 39 rotates through the horizontal panel 38 and the connecting panel 37, so that the bottom of the arc-shaped side panel 39 fits with the top of the arc-shaped bottom panel 35, and the top side walls of the arc-shaped side panels 39 on both sides fit together, and then the staff sequentially passes the screw 2 316 through the two vertical blocks 315, so that the screw 2 316 is threadedly connected with the vertical block 315, and then the nut 2 317 is threadedly connected with the screw 2 316, so that the two vertical blocks 315 fit tightly together, and then the staff rotates the knob 313 again, and the knob 313 will drive the threaded rod 312 to rotate, and the threaded rod 312 will drive the driving plate 311 to move along the rod direction of the threaded rod 312, and the driving plate 311 will drive the sliding plate 310 to slide, and the sliding plate 310 will drive the fixing plate 314 to fit against the rotor side wall, and when the fixing plate 314 fits against the rotor side wall, the rotor side wall is clamped and fixed.

[0048] The implementation principle of a turbine rotor support device in an embodiment of the present application is as follows: the staff lifts the connecting piece 27 to drive the telescopic plate 23 to move vertically. When the specified height is reached, the staff pushes the pulling ring 25 to drive the locking column 24 to move horizontally to complete the vertical locking of the telescopic plate 23. Subsequently, with the vertical movement of the telescopic plate 23, the arc-shaped bottom plate 35 will be driven to fit the bottom of the rotor to vertically support the rotor, and then the arc-shaped side plate 39 will be rotated to seal the upper surface of the rotor, and then the knob 313 will be rotated to drive the fixed plate 314 to fit the outer wall of the rotor to clamp the rotor to prevent the rotor from rotating on its own.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steam turbine rotor support device, comprising a device base plate (1), characterized in that: A vertical support mechanism (2) is provided on the top of the device bottom plate (1), and a clamping mechanism (3) is provided on the top of the device bottom plate (1); The vertical support mechanism (2) comprises a vertical box (21), a telescopic plate (23) is slidably connected inside the vertical box (21), and a locking column (24) is movably penetrated through the side wall of the telescopic plate (23); The clamping mechanism (3) comprises two sliding plates (310), a driving plate (311) is fixedly connected between the two sliding plates (310), and one end of the sliding plate (310) that passes through the arc-shaped side plate (39) is fixedly connected to a fixing plate (314).

2. A steam turbine rotor support device according to claim 1, characterized in that: The vertical box (21) is fixedly connected to the top of the device bottom plate (1) via a diagonal support plate (22) fixedly connected to the side wall of the vertical box (21).

3. A steam turbine rotor support device according to claim 2, characterized in that: The end of the locking column (24) away from the telescopic plate (23) is fixedly connected to a pulling ring (25), the outer wall of the locking column (24) close to the pulling ring (25) is movably penetrated by a supporting plate (26), and the top of the telescopic plate (23) is fixedly connected to a connecting piece (27).

4. A steam turbine rotor support device according to claim 1, characterized in that: The clamping mechanism (3) further comprises a clamping block (31) fixedly connected to the top of the connecting member (27), a screw (32) being threadedly connected through a side wall of the clamping block (31), and a nut (33) being threadedly connected to one end of one side of the screw (32) extending to the outside.

5. A steam turbine rotor support device according to claim 4, characterized in that: The outer wall of the clamping block (31) is clamped with a connecting block (34); the top of the connecting block (34) is fixedly connected with an arc-shaped bottom plate (35); the side wall of the connecting block (34) is threadedly connected with a screw (32); the side wall of the arc-shaped bottom plate (35) is fixedly connected with a rotating block (36); the middle part of the rotating block (36) is rotatably connected with a connecting plate (37); and the side wall of the connecting plate (37) is fixedly connected with a horizontal plate (38).

6. A steam turbine rotor support device according to claim 5, characterized in that: The horizontal plate (38) is fixedly connected to a curved side plate (39) on one side away from the connecting plate (37); the bottom of the curved side plate (39) is in contact with the top of the curved bottom plate (35); and the side wall of the curved side plate (39) movably penetrates the sliding plate (310).

7. A steam turbine rotor support device according to claim 6, characterized in that: A threaded rod (312) is threadedly penetrated through the top center of the driving plate (311); one end of the threaded rod (312) close to the arcuate side plate (39) is non-penetratingly rotatably connected to the arcuate side plate (39); and one end of the threaded rod (312) away from the arcuate side plate (39) is fixedly connected to a knob (313).

8. A steam turbine rotor support device according to claim 7, characterized in that: The side of the fixing plate (314) close to the arc-shaped side plate (39) is fitted with the inner wall of the arc-shaped side plate (39), and the top of the arc-shaped side plate (39) is fixedly connected with a vertical block (315), and the side walls of the two vertical blocks (315) are threadedly connected with a second screw (316), and the other end of the second screw (316) passes through the two vertical blocks (315) and extends to the outside and is threadedly connected with a second nut (317).

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