Turbine rotor structure

Abstract

The utility model discloses a steam turbine rotor structure, and relates to the field of steam turbine rotors, a rotor comprises a first rotating block and a second rotating block which are disassembled and separated, a clamping mechanism and a fixing cavity formed in the first rotating block and the second rotating block, and an annular groove is formed in the outer portion of the fixing cavity formed in the first rotating block; according to the steam turbine rotor, by means of the clamping mechanism, the stability and reliability of the steam turbine rotor structure can be ensured, the first rotating block and the second rotating block can be stably connected, separation caused by centrifugal force is avoided, and the stability and reliability of the steam turbine rotor structure are improved. According to the utility model, equipment damage caused by mutual collision and friction of parts is reduced, the service life of the equipment is prolonged, the maintenance cost and the equipment replacement frequency are reduced, the risk of serious damage caused by separation and flying-out of the parts during high-speed rotation is eliminated, and the reliability of rotor segmentation is improved at the same time.

Description

Technical Field

[0001] This application relates to the field of steam turbine rotors, and particularly to a steam turbine rotor structure. Background Art

[0002] A steam turbine rotor usually consists of a main shaft, impellers, moving blades, etc. Its main function is to convert the energy of steam into mechanical energy, thereby driving a generator or other equipment to operate, which can reduce energy loss and improve the efficiency of the entire steam turbine system.

[0003] For example, in a steam turbine rotor structure with the patent number 202120549729.X, the rotor body includes a front rotor section and a rear rotor section. A guide post is fixedly installed in the middle of one side of the rear rotor section, and the guide post is movably clamped in the middle of one side of the front rotor section. A connection component is movably clamped in the middle of the end of the rear rotor section away from the front rotor section; the connection component includes a sleeve frame. A guide rod is fixedly installed in the middle of one side of the sleeve frame, and the guide rod is movably clamped in the middle of the end of the rear rotor section away from the front rotor section. A bearing is fixedly sleeved on the outside of the sleeve frame; a fixing bolt is threadedly inserted into the side of the rear rotor section away from the front rotor section. There are still the following deficiencies in actual use:

[0004] In the steam turbine rotor structure of the above patent, during actual use, the front section and the rear section of the rotor cannot be fixed together. Only the middle parts of the front and rear sections of the rotor are inserted together. Even if the outer sides of the front and rear sections of the rotor are fixedly connected to the bearing and the thrust disc, to a certain extent, it will cause great stress on the connection part due to the huge centrifugal force generated during high-speed rotation of the rotor, resulting in the separation of the front and rear sections of the rotor. When the rotor separates during high-speed operation, the internal components of the rotor will collide and rub against each other, thus causing serious damage to the equipment. Moreover, the separated high-speed rotating components will fly out with great force, causing serious harm to the surrounding personnel and equipment. Summary of the Utility Model

[0005] In order to improve the connection method between the front and rear sections of the rotor, this application provides a steam turbine rotor structure.

[0006] The steam turbine rotor structure provided by this application adopts the following technical solution:

[0007] A steam turbine rotor structure, the rotor itself includes a rotatable block one and a rotatable block two that are disassembled and separated, and a clamping mechanism, including fixed cavities opened inside the rotatable block one and the rotatable block two. An annular groove is opened outside the fixed cavity opened in the rotatable block one. An annular block rotatably connected to the inside of the annular groove is fixedly connected to one side of the rotatable block two. A U-shaped block is arranged inside the fixed cavity.

[0008] By adopting the above technical solution, through the provided U-shaped block, a fixed and detachable connection can be made at the segmented part of the rotor.

[0009] Preferably, a fixed block is fixedly connected to the side wall of the fixed cavity. An activity groove is formed at one end of the fixed block away from the side wall of the fixed cavity, and sliding grooves are formed at the upper and lower ends of the activity groove.

[0010] By adopting the above technical solution, through the provided sliding grooves, the bottom clamping block can be clamped in the bottom sliding groove to prevent the sliding column from rotating.

[0011] Preferably, a first fixing column penetrating through one side of the activity groove is provided on one side of the fixed block. One side of the U-shaped block is rotatably connected to the outer wall of the first fixing column, and an extension block is fixedly connected to one end of one side of the U-shaped block.

[0012] By adopting the above technical solution, through the provided first fixing column, the rotation range of the U-shaped block can be fixed.

[0013] Preferably, a sliding column is slidably connected inside the sliding groove. A clamping block clamped on the surface of the extension block is fixedly connected to one side of the sliding column, and a hollow column is fixedly connected to the upper end of the sliding column.

[0014] By adopting the above technical solution, through the cooperation of the provided clamping block and the extension block, when two U-shaped blocks are clamped with each other, the mutually clamped U-shaped blocks can be fixed.

[0015] Preferably, a threaded column is threadedly connected to the surfaces of the first rotating block and the second rotating block. A circular plate rotatably connected inside the hollow column is fixedly connected to the bottom of the threaded column.

[0016] By adopting the above technical solution, through the provided circular plate, the threaded column can control the up and down movement of the sliding column. Through the provided threaded column, the two U-shaped blocks can be fixed and separated.

[0017] Preferably, a circular groove is formed on one side of the second rotating block away from the first rotating block. A second fixing column is slidably connected inside the circular groove, and a bearing is fixedly connected to one side of the second fixing column away from the circular groove.

[0018] By adopting the above technical solution, through the provided circular groove and the second fixing column, the second rotating block can be clamped with the bearing.

[0019] Preferably, a threaded circular column is fixedly connected to one side of the second rotating block close to the circular groove. An L-shaped groove is formed on one side of the threaded circular column away from the second rotating block, and a butting block butting against the surface of the bearing is clamped inside the L-shaped groove.

[0020] By adopting the above technical solution, through the arranged abutting block, the rotating block two can be fixedly connected to the bearing together.

[0021] Preferably, an externally threaded rotating column that rotates on the outer wall of the bearing is threadedly connected to the outer part of the threaded circular column, and a tapered hole that abuts against the outer wall of the abutting block is formed inside the rotating column.

[0022] By adopting the above technical solution, through the arranged rotating column, the abutting block can be used to abut and fix or disassemble and separate the bearing.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By using the clamping mechanism, the stability and reliability of the steam turbine rotor structure can be ensured. The rotating block one and the rotating block two can be firmly connected, avoiding separation caused by centrifugal force, reducing equipment damage caused by mutual collision and friction of components, extending the service life of the equipment, reducing maintenance costs and equipment replacement frequency, eliminating the serious injury risk caused by the separation and flying out of components during high-speed rotation, and at the same time improving the reliability of rotor segmentation. Brief Description of the Drawings

[0025] Figure 1 It is a three-dimensional structure diagram of a steam turbine rotor structure of the present application;

[0026] Figure 2 It is a schematic diagram of the clamping mechanism of a steam turbine rotor structure of the present application;

[0027] Figure 3 It is a disassembly diagram of the clamping mechanism of a steam turbine rotor structure of the present application;

[0028] Figure 4 It is a partial view of the clamping mechanism of a steam turbine rotor structure of the present application.

[0029] Reference numerals: 1, rotating block one; 101, rotating block two;

[0030] 2, clamping mechanism; 201, fixed cavity; 202, annular groove; 203, annular block; 204, fixed block; 205, movable groove; 206, sliding groove; 207, fixed column one; 208, U-shaped block; 209, extension block; 210, sliding column; 211, clamping block; 212, hollow column; 213, threaded column; 214, circular plate; 215, circular groove; 216, fixed column two; 217, threaded circular column; 218, L-shaped groove; 219, abutting block; 220, rotating column; 221, tapered hole;

[0031] 3, bearing. Detailed Description of the Embodiment

[0032] The following is combined with the attachedFigure 1 — Further details of this application will be described below.

[0033] An embodiment of this application discloses a steam turbine rotor structure.

[0034] The observation views (front, rear, left, right) of this device are based on the attached Figure 1 as a reference benchmark.

[0035] Embodiment 1

[0036] Referring to Figures 1-4 , a steam turbine rotor structure includes a rotating block 1. The rotor itself includes a disassembled and separated rotating block 1 and a rotating block 101. A clamping mechanism 2 includes a fixed cavity 201 opened inside the rotating block 1 and the rotating block 101. An annular groove 202 is opened on the outer wall of the rotating block 1 close to the rotating block 101. One side of an annular block 203 is fixedly connected to the side of the rotating block 101 close to the rotating block 1. The annular block 203 is slidably connected inside the annular groove 202. One side of a fixed block 204 is fixedly connected inside the fixed cavity 201 opened by the rotating block 1 and the rotating block 101. A non-through moving groove 205 is opened on the other side of the fixed block 204. Sliding grooves 206 are opened at the upper and lower ends of the moving groove 205. The sliding groove 206 runs through the upper end of the fixed block 204. The middle part of a fixed column 207 runs through one side of the fixed block 204. The upper and lower ends of the fixed column 207 are clamped at the upper and lower ends of the fixed block 204. The middle part of one side of a U-shaped block 208 is rotatably connected to the outer wall of the middle part of the fixed column 207. The bottom of the U-shaped block 208 is slidably connected to the surface of the moving groove 205 through the fixed column 207.

[0037] One side of an extension block 209 is fixedly connected to the outer wall of one end of the other side of the U-shaped block 208. At the same time, the extension block 209 and the U-shaped block 208 are both slidably connected to the surface of the moving groove 205. The middle and lower part of the outer wall of a sliding column 210 is slidably connected inside the sliding groove 206. One side of a clamping block 211 is fixedly connected to the outer wall of the sliding column 210. The lower clamping block 211 is slidably connected and clamped inside the lower sliding groove 206. The upper clamping block 211 is clamped on the surface of the extension block 209. The bottom of a hollow column 212 is fixedly connected to the top of the sliding column 210. The outer parts of two threaded columns 213 are respectively threadedly connected to the inner surface of the surface of the rotating block 1 and the rotating block 101. The bottom of the threaded column 213 is fixedly connected to the top of a disc 214 and rotates inside the hollow column 212 at the same time. The top of the disc 214 is fixedly connected to the bottom of the threaded column 213. The outer wall of the disc 214 is rotatably connected and clamped inside the hollow column 212.

[0038] The circular groove 215 is opened on the side wall of the second rotating block 101 away from the first rotating block 1. The outer wall of the second fixing column 216 is slidably connected inside the circular groove 215. One side of the second fixing column 216 is fixedly connected to one side of the bearing 3. Both sides of the bearing 3 are respectively fixedly connected to the power source and one side of the second fixing column 216. One side of the threaded circular column 217 is fixedly connected to the side wall of the second rotating block 101. The middle part of the threaded circular column 217 is slidably connected to the outer wall of the bearing 3. The L-shaped groove 218 is opened on the other side wall of the threaded circular column 217. One end of the abutting block 219 is provided with an L-shaped block adapted to the L-shaped groove 218. The abutting block 219 is slidably connected inside the L-shaped groove 218 through the L-shaped block. The inner wall of the abutting block 219 abuts against the outer wall of the bearing 3. One side of the rotating column 220 is threadedly connected to the outside of the threaded circular column 217. The other side of the rotating column 220 is clamped on the outer wall of the bearing 3. The tapered hole 221 is penetrated and opened inside the rotating column 220. The inner wall of the tapered hole 221 abuts against the outer wall of the abutting block 219.

[0039] The material of the abutting block 219 is soft silicone. Since this material is an existing material, it will not be described in detail here. In addition, the other end of the bearing 3 is closely attached to the journal of the main shaft to achieve the support and positioning of the main shaft. Since it is not a main technical feature, it will not be described in detail here.

[0040] By setting, when the operator needs to disassemble the first rotating block 1 and the second rotating block 101, the operator manually rotates the threaded column 213 with a screwdriver, so that the threaded column 213 rotates and moves upward inside the surfaces of the first rotating block 1 and the second rotating block 101. Through the rotation and upward movement of the threaded column 213, the disc 214 drives the hollow column 212 to rotate and move upward. Through the upward movement of the hollow column 212, the sliding column 210, through the clamping block 211 clamped inside the sliding groove 206, makes the sliding column 210 unable to rotate and can only slide upward inside the sliding groove 206. Through the sliding of the sliding column 210, the upper clamping block 211 no longer fixes one side of the U-shaped block 208 through the extension block 209. When the upper clamping blocks 211 no longer clamp the U-shaped block 208 through the extension block 209, the operator can manually pull out the first rotating block 1 away from the second rotating block 101. By pulling out the first rotating block 1 outward, since one side of the U-shaped block 208 is no longer resisted by the clamping block 211, at this time, the two U-shaped blocks 208 start to rotate on the outer wall of the first fixing column 207, and the annular block 203 starts to slide outward inside the annular groove 202 until the two U-shaped blocks 208 no longer clamp each other, and the disassembly of the first rotating block 1 can be completed;

[0041] When it is necessary to install the first rotating block 1 and the second rotating block 101, the operator manually keeps the two U-shaped blocks 208 horizontal, and then the operator manually brings the first rotating block 1 and the second rotating block 101 closer. Through the approximation of the first rotating block 1 and the second rotating block 101, the annular block 203 begins to slide into the interior of the annular groove 202, and the U-shaped block 208 begins to rotate on the outer wall of the first fixed column 207 until the two U-shaped blocks 208 are buckled with each other. When the U-shaped blocks 208 are buckled with each other, the operator rotates the threaded column 213 downward with a screwdriver. Through the downward rotation of the threaded column 213, the hollow column 212 pushes the sliding column 210 to move downward inside the sliding groove 206. Through the downward movement of the sliding column 210, the upper clamping block 211 fits on the surface of the extension block 209 to fix the U-shaped block 208, and the lower clamping block 211 slides inside the lower sliding groove 206 to prevent the sliding column 210 from rotating. When both threaded columns 213 can no longer move downward, the first rotating block 1 and the second rotating block 101 can be fixed.

[0042] When it is necessary to remove the second rotating block 101 and the bearing 3, the operator manually rotates the rotating column 220 in the reverse direction. Through the rotation of the rotating column 220, the tapered hole 221 begins to loosen or tighten the abutting block 219. Through the loosening or tightening of the abutting block 219 by the tapered hole 221, the abutting block 219 no longer abuts against the bearing 3. Through the abutting block 219 no longer abutting against the bearing 3, the second rotating block 101 can be removed.

[0043] When it is necessary to assemble the second rotating block 101 and the bearing 3, by inserting the second fixed column 216 into the circular groove 215, and then rotating the rotating column 220 in the forward direction, the abutting block 219 begins to abut against the bearing 3. When the rotating column 220 can no longer rotate, the assembly of the second rotating block 101 and the bearing 3 can be completed.

[0044] The implementation principle of a steam turbine rotor structure of the embodiment of the present application is as follows: when it is necessary to separate the rotating block 1 from the rotating block 2 101, the operator rotates the threaded column 213 with a screwdriver. By rotating the threaded column 213, the disc 214 begins to move upward with the hollow column 212 and the sliding column 210. When the clamping block 211 no longer interferes with the U-shaped block 208, the rotating block 1 can be manually pulled out from the inside of the rotating block 2 101. When it is necessary to assemble the rotating block 1 with the rotating block 2 101, it is necessary to keep the U-shaped block 208 inside the rotating block 1 and the rotating block 2 101. Keep it horizontal, then manually move the rotating block 1 and the rotating block 2 101 closer so that the U-shaped blocks 208 are engaged with each other. At this time, rotate the threaded column 213 to fix the U-shaped block 208, and the assembly of the rotating block 1 and the rotating block 2 101 can be completed. When it is necessary to remove or assemble the rotating block 2 101 and the bearing 3 (before assembling the rotating block 2 101 and the bearing 3, the fixing column 216 needs to be slid inside the circular groove 215), and then rotate the rotating column 220 to make the abutment block 219 abut or loosen the bearing 3, and the rotating block 2 101 and the bearing 3 can be removed or assembled.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A steam turbine rotor structure, the rotor itself includes a rotating block one (1) and a rotating block two (101) that are disassembled and separated, and is characterized in that: A clamping mechanism (2), including a fixed cavity (201) opened inside the rotating block one (1) and the rotating block two (101), an annular groove (202) is opened outside the fixed cavity (201) opened in the rotating block one (1), and a side of the rotating block two (101) is fixedly connected with an annular block (203) rotatably connected inside the annular groove (202), and a U-shaped block (208) is arranged inside the fixed cavity (201).

2. A steam turbine rotor structure according to claim 1, characterized in that: A fixed block (204) is fixedly connected to the side wall of the fixed cavity (201), a movable groove (205) is opened at one end of the fixed block (204) away from the side wall of the fixed cavity (201), and sliding grooves (206) are opened at the upper and lower ends of the movable groove (205).

3. A steam turbine rotor structure according to claim 2, characterized in that: A fixed column one (207) penetrating through one side of the movable groove (205) penetrates through one side of the fixed block (204), one side of the U-shaped block (208) is rotatably connected to the outer wall of the fixed column one (207), and one end of one side of the U-shaped block (208) is fixedly connected with an extension block (209).

4. A steam turbine rotor structure according to claim 2, characterized in that: A sliding column (210) is slidably connected inside the sliding groove (206), a clamping block (211) clamped on the surface of the extension block (209) is fixedly connected to one side of the sliding column (210), and a hollow column (212) is fixedly connected to the upper end of the sliding column (210).

5. A steam turbine rotor structure according to claim 1, characterized in that: A threaded column (213) is threadedly connected to the surfaces of the rotating block one (1) and the rotating block two (101), and a round plate (214) rotatably connected inside the hollow column (212) is fixedly connected to the bottom of the threaded column (213).

6. The steam turbine rotor structure according to claim 1, characterized in that: A circular groove (215) is opened on one side of the rotating block two (101) away from the rotating block one (1), a fixed column two (216) is slidably connected inside the circular groove (215), and a bearing (3) is fixedly connected to one side of the fixed column two (216) away from the circular groove (215).

7. A steam turbine rotor structure according to claim 1, characterized in that: A threaded circular column (217) is fixedly connected to one side of the rotating block two (101) close to the circular groove (215), an L-shaped groove (218) is opened on one side of the threaded circular column (217) away from the rotating block two (101), and a butting block (219) butting against the surface of the bearing (3) is clamped inside the L-shaped groove (218).

8. A steam turbine rotor structure according to claim 7, characterized in that: A rotating column (220) rotatably connected to the outer wall of the bearing (3) is threadedly connected to the outside of the threaded circular column (217), and a tapered hole (221) butting against the outer wall of the butting block (219) is opened inside the rotating column (220).

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