CN212154877U - Shock-absorbing structure of steam turbine - Google Patents
Shock-absorbing structure of steam turbine Download PDFInfo
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- CN212154877U CN212154877U CN202020928799.1U CN202020928799U CN212154877U CN 212154877 U CN212154877 U CN 212154877U CN 202020928799 U CN202020928799 U CN 202020928799U CN 212154877 U CN212154877 U CN 212154877U
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Abstract
The utility model relates to a shock-absorbing structure of steam turbine, the technical field of steam turbine, including the base, the base is placed on the shock attenuation frame, is provided with on the shock attenuation frame and carries out absorbing damper to the base, shock-absorbing mechanism includes first shock attenuation board, first shock attenuation piece, second shock attenuation board, second shock attenuation piece, and the vertical setting of sliding of first shock attenuation board just supports on the base bottom on the shock attenuation frame, and first shock attenuation piece both ends are connected with shock attenuation frame and first shock attenuation board respectively, and the setting of second shock attenuation board horizontal sliding just contradicts on the shock attenuation frame on the both sides wall that the base is relative, and second shock attenuation piece both ends are connected with the lateral wall that shock attenuation frame and second shock attenuation board are relative one side respectively. The utility model discloses a first shock attenuation board comes the base from vertical side to carry out the shock attenuation, and the second shock attenuation board comes to carry out the shock attenuation to the base from the horizontal direction simultaneously to this comes to carry out the shock attenuation to the base from a plurality of directions, has reduced the probability of steam turbine vibration, has improved the life of steam turbine.
Description
Technical Field
The utility model belongs to the technical field of the technique of steam turbine and specifically relates to a shock-absorbing structure of steam turbine is related to.
Background
The steam turbine is also called as steam turbine engine, and is a rotary steam power equipment, and the high-temperature high-pressure steam is passed through fixed nozzle, becomes accelerated air flow, and is sprayed on the blade to make the rotor equipped with blade row rotate, at the same time, it can do work for exterior. Steam turbines are the main equipment of modern thermal power plants, and are also used in the metallurgical industry, chemical industry and ship power plants.
In the prior art, the patent of Chinese utility model with the grant publication number of CN205400824U can be referred to, and discloses a novel thermal power plant steam turbine condenser fixing base, which comprises a left base and a right base, wherein the right side of the left base is provided with 2-4 rectangular closed left slots which are parallel to each other, the left side of the right base is provided with a right slot, the right side of the left base is connected with a left magnetic plate, the left side of the right base is connected with a right magnetic plate, the rectangular closed left slot is connected with a connecting inserted bar, the connecting inserted bar is connected with a rectangular closed right slot, the left base and the right base are fixed through a left magnetic plate suction right magnetic plate, the left base is provided with a left moving wheel channel, the right base is provided with a right moving wheel channel, and the left moving wheel and the right moving wheel are both connected at the bottom of the thermal power.
The technical scheme has the following defects: the steam turbine usually operates at a high rotation speed, and vibrations in multiple directions are generated during operation, so that components of the steam turbine are easily damaged, and the service life of the steam turbine is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a shock-absorbing structure of steam turbine comes to the base from a plurality of directions and subtracts the shock attenuation, has reduced the probability of steam turbine vibration, has improved the life of steam turbine.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a shock-absorbing structure of steam turbine, includes the base, the base is placed on the shock attenuation frame, be provided with on the shock attenuation frame and carry out absorbing damper to the base, shock-absorbing damper includes first shock attenuation board, first shock attenuation piece, second shock attenuation board, second shock attenuation piece, first shock attenuation board vertical sliding sets up on the shock attenuation frame and supports on the base bottom, first shock attenuation piece both ends are connected with the lateral wall that shock attenuation frame and first shock attenuation board are relative one side respectively, second shock attenuation board horizontal sliding sets up on the shock attenuation frame and contradicts on the relative both sides wall of base, second shock attenuation piece both ends are connected with the lateral wall that shock attenuation frame and second shock attenuation board are relative one side respectively.
Through adopting above-mentioned technical scheme, first shock attenuation board comes the base from vertical direction to carry out the shock attenuation, and the second shock attenuation board comes the base to carry out the shock attenuation from the horizontal direction simultaneously to this comes to carry out the shock attenuation to the base from a plurality of directions, has reduced the probability of steam turbine vibration, has improved the life of steam turbine.
The present invention may be further configured in a preferred embodiment as: the adjusting screw rod is penetrated through the upper horizontal sliding of the damping frame, the second damping plate is in threaded connection with the adjusting screw rod, the second damping piece is sleeved on the adjusting screw rod, and two ends of the second damping piece respectively abut against the side wall of one side, opposite to the damping frame and the second damping plate, of the damping frame.
After the second damping piece is used for a period of time, the elasticity is weakened, so that the damping effect of the second damping piece on the steam turbine is reduced, and therefore the second damping piece needs to be replaced;
through adopting above-mentioned technical scheme, twist and move adjusting screw and dismantle adjusting screw, then change second shock attenuation piece, change the completion back, pass second shock attenuation piece threaded connection with adjusting screw on the second shock attenuation board to this changes second shock attenuation piece, has improved the shock attenuation effect of second shock attenuation piece to the steam turbine.
The present invention may be further configured in a preferred embodiment as: the two ends of the first damping piece are abutted against the side wall of one side, opposite to the damping frame and the first damping plate, of the damping frame, and a lifting assembly for lifting the base is arranged on the side wall of the base.
After the first damping piece is used for a period of time, the elastic force is weakened, so that the damping effect of the first damping piece on the steam turbine is reduced, and therefore the first damping piece needs to be replaced;
through adopting above-mentioned technical scheme, the lifting unit starts to drive the base and shifts up, then can take off first shock attenuation board and change first shock attenuation piece, changes the completion back, and the lifting unit starts to drive the base and moves down and make the base support and press to first shock attenuation board to this is accomplished and is changed first shock attenuation piece, has improved the shock attenuation effect of first shock attenuation piece to the steam turbine.
The present invention may be further configured in a preferred embodiment as: the lifting assembly comprises an electric push rod and a push block, the electric push rod is arranged on two opposite side walls of the base, a piston rod is vertically downward, and the push block is arranged on the piston rod of the electric push rod and used for driving the base to lift.
Through adopting above-mentioned technical scheme, the electric push rod starts to drive the ejector pad and removes towards ground for the ejector pad is contradicted subaerially, make the base keep away from first shock attenuation board with this lifting base, then can dismantle first shock attenuation board, change first shock attenuation piece after that, change the completion back, install first shock attenuation board, last electric push rod piston rod is retracted and is driven the base and move down, with this place first shock attenuation board with the base, reach the purpose that goes up and down to the base with this.
The present invention may be further configured in a preferred embodiment as: the bottom of ejector pad is rotated and is provided with the gyro wheel, be provided with the brake on the gyro wheel.
By adopting the technical scheme, the base can be pushed to move the steam turbine after being far away from the first damping plate, and meanwhile, in the moving process, when the steam turbine needs to stop, the roller can be fixed by using a brake, so that the convenience in moving the steam turbine is improved; after the movement is finished, the electric push rod drives the first damping plate placed on the base.
The present invention may be further configured in a preferred embodiment as: the base is provided with a supporting component for supporting the push block.
Through adopting above-mentioned technical scheme, because the base is heavier, therefore the pressure that electric push rod received is great, and electric push rod damages easily, consequently supports the ejector pad through supporting component, has reduced the pressure that electric push rod received, has improved electric push rod's life.
The present invention may be further configured in a preferred embodiment as: the supporting component comprises a positioning block, a positioning screw rod and a locking nut, the positioning block is arranged on the pushing block and provided with a positioning groove, the positioning screw rod is rotatably arranged on the base and is clamped and installed on the positioning groove, and the locking nut is in threaded connection with the positioning screw rod and tightly abuts against the positioning block.
Through adopting above-mentioned technical scheme, twist lock nut and keep away from the locating piece, then rotate the positioning screw and break away from the constant head tank, then the ejector pad can remove, remove the completion back, rotate positioning screw joint and install on the constant head tank, then twist lock nut and support tightly on the locating piece to this reaches the purpose that supports the ejector pad.
The present invention may be further configured in a preferred embodiment as: the locking nut is a butterfly nut.
Through adopting above-mentioned technical scheme, need not the instrument and can twist lock nut, convenience when having improved the twist lock nut.
To sum up, the utility model discloses a beneficial technological effect does:
1. the base is damped from the vertical direction through the first damping plate, and meanwhile, the base is damped from the horizontal direction through the second damping plate, so that the base is damped from multiple directions, the vibration probability of the steam turbine is reduced, and the service life of the steam turbine is prolonged;
2. the adjusting screw rod is detached, then the second damping piece is replaced, and after the replacement is completed, the adjusting screw rod is connected to the second damping plate in a threaded mode, so that the second damping piece is replaced, and the damping effect of the second damping piece on the steam turbine is improved; the base is driven to be away from the first damping plate through the starting of the electric push rod, then the first damping piece can be replaced, and after the replacement is completed, the electric push rod is started to place the base on the first damping plate, so that the replacement of the first damping piece is completed, and the damping effect of the first damping piece on the steam turbine is improved;
3. the electric push rod is started to drive the roller to abut against the ground, so that the base can be pushed to move the steam turbine after being far away from the first damping plate, and meanwhile, in the moving process, when the steam turbine needs to stop, the roller can be fixed by using a brake, so that the convenience in moving the steam turbine is improved;
4. move lock nut through twisting and keep away from the locating piece, then rotate positioning screw and break away from the constant head tank, then the ejector pad can remove, removes to accomplish the back, rotates positioning screw joint and installs on the constant head tank, then twists lock nut and supports tightly on the locating piece to this comes to support the ejector pad, has reduced the pressure that the electric push rod received, has improved the life of electric push rod.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a partial exploded view of the present invention, with the lifting assembly and support assembly omitted;
fig. 3 is a schematic structural view of the lifting assembly and the supporting assembly of the present invention.
Reference numerals: 1. a base; 11. a shock-absorbing mount; 12. mounting holes; 13. a support plate; 14. a slide bar; 15. mounting a plate; 16. a fixing plate; 2. a damping mechanism; 21. a first damper plate; 211. adjusting the screw rod; 212. a handle; 213. chamfering; 22. a first damper; 23. a second damper plate; 24. a second damping member; 3. a lifting assembly; 31. an electric push rod; 32. a push block; 321. a roller; 5. a support assembly; 51. positioning blocks; 511. positioning a groove; 52. positioning a screw rod; 53. and locking the nut.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for utility model's a shock-absorbing structure of steam turbine, including base 1, base 1 places on 11 tops of shock attenuation frame, and shock attenuation frame 11 places subaerial, and the mounting hole 12 that link up both sides wall about 11 is offered to shock attenuation frame 11 middle part position, and the projection of the vertical side of shock attenuation frame 11 is back the font, is provided with on the shock attenuation frame 11 and carries out absorbing damper 2 to base 1.
Referring to fig. 1 and 2, the damping mechanism 2 includes a first damping plate 21, a first damping member 22, a second damping plate 23 and a second damping member 24, a plurality of support plates 13 are fixedly mounted on the mounting hole 12 of the damping frame 11, the support plates 13 are horizontally and uniformly distributed, the first damping plate 21 is vertically slidably mounted on the support plates 13, a plurality of sliding rods 14 vertically slidably mounted on the support plates 13 are fixedly mounted at the bottom end of the first damping plate 21, and the first damping plate 21 is located above the damping frame 11; the first damping member 22 is sleeved on the sliding rod 14, and two ends of the first damping member 22 respectively abut against the side walls of the first damping plate 21 and the opposite side of the supporting plate 13.
The side walls of the periphery of the shock absorption frame 11 are all fixedly provided with L-shaped mounting plates 15, adjusting screws 211 are horizontally slidably arranged on the vertical side walls of the mounting plates 15 and above the first shock absorption plates 21, and handles 212 are fixedly arranged at one ends, far away from the base 1, of the adjusting screws 211; the second damping plate 23 is in threaded connection with one end of the adjusting screw 211 close to the base 1, the second damping piece 24 is sleeved on the adjusting screw 211, two ends of the second damping piece 24 are respectively abutted against the side wall of one side of the mounting plate 15 opposite to the second damping plate 23, meanwhile, the first damping piece 22 and the second damping piece 24 are both damping springs, and the second damping plate 23 is abutted against the side wall of the base 1 under the action of the second damping piece 24.
The first damping plate 21 damps the base 1 from the vertical direction, and the second damping plate 23 damps the base 1 from the horizontal direction, so that the base 1 is damped from multiple directions, and the vibration probability of the steam turbine is reduced; meanwhile, the adjusting screw 211 is screwed to detach the adjusting screw 211, then the second damping member 24 is replaced, and after the replacement is completed, the adjusting screw 211 penetrates through the second damping member 24 and is connected to the second damping plate 23 in a threaded manner, so that the second damping member 24 is replaced.
Referring to fig. 1 and 3, a lifting assembly 3 for lifting the base 1 is arranged on the side wall of the base 1, the lifting assembly 3 comprises an electric push rod 31 and a push block 32, two opposite side walls of the base 1 are fixedly provided with a fixed plate 16, and two fixed plates 16 on the side wall of the base 1 on the same side are horizontally arranged in an array manner; electric putter 31 fixed mounting is on fixed plate 16, and the piston rod of electric putter 31 is vertical downwards, ejector pad 32 fixed mounting is on electric putter 31's piston rod, and ejector pad 32 can contradict subaerial the drive base 1 lift of driving under electric putter 31's effect, and ejector pad 32 and electric putter 31 are at the ascending projection of vertical side and 11 vertical ascending projections of shock attenuation frame and do not have the intersection simultaneously, and fixed mounting has gyro wheel 321 on ejector pad 32's the bottom, installs the brake on the gyro wheel 321.
The electric push rod 31 is started to drive the push block 32 to move towards the ground, so that the roller 321 is abutted to the ground, the base 1 is lifted to enable the base 1 to be far away from the first damping plate 21, then the first damping plate 21 can be detached, then the first damping piece 22 is replaced, after the replacement is completed, the first damping plate 21 is installed, and finally the piston rod of the electric push rod 31 retracts to drive the base 1 to move downwards, so that the base 1 is placed on the first damping plate 21; meanwhile, after the base 1 is far away from the first damping plate 21, the base 1 can be pushed to move the steam turbine, and when the steam turbine needs to stop, the roller 321 can be fixed by using a brake, so that the position of the steam turbine can be conveniently moved. The chamfer 213 is opened at the top end of the second damping plate 23 and on the side close to the base 1, and the chamfer 213 guides the base 1 when being placed between the second damping plates 23.
A supporting component 5 for supporting the push block 32 is arranged on the base 1, the supporting component 5 comprises a positioning block 51, a positioning screw 52 and a locking nut 53, the positioning block 51 is fixedly arranged on the side wall of the push block 32, and one end of the positioning block 51, which is far away from the push block 32, is provided with a positioning groove 511 which penetrates through the upper side wall and the lower side wall of the positioning block 51; one end of the positioning screw 52 is rotatably mounted on the bottom end of the support plate 13, the rotation axis of the positioning screw 52 is horizontal, and the positioning screw 52 is vertical and is clamped and mounted on the positioning groove 511; the locking nut 53 is connected to the positioning screw 52 by a screw thread, and the locking nut 53 is tightly pressed against the top end of the positioning block 51, and meanwhile, the locking nut 53 is a butterfly nut.
The locking nut 53 is screwed to move away from the positioning block 51, the positioning screw 52 is rotated to be separated from the positioning groove 511, then the pushing block 32 can move, after the movement is completed, the positioning screw 52 is rotated to be clamped and installed on the positioning groove 511, and then the locking nut 53 is screwed to be tightly abutted against the positioning block 51, so that the pushing block 32 is supported.
The implementation principle of the embodiment is as follows:
first shock attenuation board 21 comes base 1 from the vertical direction to carry out the shock attenuation, and second shock attenuation board 23 comes base 1 from the horizontal direction to carry out the shock attenuation simultaneously to this comes to carry out the shock attenuation to base 1 from a plurality of directions, has reduced the probability of steam turbine vibration, has improved the life of steam turbine.
The electric push rod 31 is started to enable the roller 321 to abut against the ground, so that the base 1 is far away from the first damping plate 21, then the first damping piece 22 can be replaced, after replacement is completed, the electric push rod 31 is started to place the base 1 on the first damping plate 21, so that the first damping piece 22 is replaced, and the damping effect of the first damping piece 22 on the steam turbine is improved; meanwhile, after the base 1 is far away from the first damping plate 21, the base 1 can be pushed to move the steam turbine, in the moving process, when the steam turbine needs to stop, the roller 321 can be fixed through a brake, and convenience in moving the steam turbine is improved.
The locking nut 53 is screwed to be away from the positioning block 51, the positioning screw 52 is rotated to be separated from the positioning groove 511, then the pushing block 32 can move, after the movement is completed, the positioning screw 52 is rotated to be clamped and mounted on the positioning groove 511, and then the locking nut 53 is screwed to be tightly abutted to the positioning block 51, so that the pushing block 32 is supported, the pressure on the electric push rod 31 is reduced, and the service life of the electric push rod 31 is prolonged.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a shock-absorbing structure of steam turbine, includes base (1), its characterized in that: base (1) is placed on shock attenuation frame (11), be provided with on shock attenuation frame (11) and carry out absorbing damper (2) to base (1), damper (2) are including first shock attenuation board (21), first shock attenuation piece (22), second shock attenuation board (23), second shock attenuation piece (24), vertical the sliding setting of first shock attenuation board (21) is on shock attenuation frame (11) and support on base (1) bottom, first shock attenuation piece (22) both ends are connected with the lateral wall of shock attenuation frame (11) and the relative one side of first shock attenuation board (21) respectively, second shock attenuation board (23) horizontal sliding sets up on shock attenuation frame (11) and contradicts on the both sides wall that base (1) is relative, second shock attenuation piece (24) both ends are connected with the lateral wall that shock attenuation frame (11) and the relative one side of second shock attenuation board (23) respectively.
2. The structure of claim 1, wherein: adjusting screw (211) are penetrated to horizontal slip on shock attenuation frame (11), second shock attenuation board (23) threaded connection is on adjusting screw (211), second shock attenuation piece (24) cover is established on adjusting screw (211) and both ends support tightly respectively on the lateral wall of shock attenuation frame (11) and the relative one side of second shock attenuation board (23).
3. The structure of claim 1, wherein: the two ends of the first damping piece (22) are abutted against the side wall of one side, opposite to the damping frame (11) and the first damping plate (21), of the damping frame, and the side wall of the base (1) is provided with a lifting assembly (3) for lifting the base (1).
4. A vibration reducing structure of a steam turbine according to claim 3, wherein: the lifting assembly (3) comprises an electric push rod (31) and a push block (32), the electric push rod (31) is arranged on two opposite side walls of the base (1), a piston rod is vertically downward, and the push block (32) is arranged on the piston rod of the electric push rod (31) and is used for driving the base (1) to lift.
5. The vibration reducing structure of a steam turbine according to claim 4, wherein: the bottom of ejector pad (32) rotates and is provided with gyro wheel (321), be provided with the brake on gyro wheel (321).
6. The vibration reducing structure of a steam turbine according to claim 5, wherein: the base (1) is provided with a supporting component (5) for supporting the push block (32).
7. The vibration reducing structure of a steam turbine according to claim 6, wherein: supporting component (5) are including locating piece (51), positioning screw (52), lock nut (53), locating piece (51) set up on ejector pad (32) and seted up constant head tank (511), positioning screw (52) rotate to set up on base (1) and the joint is installed on constant head tank (511), lock nut (53) threaded connection just supports tightly on locating piece (51) on positioning screw (52).
8. The vibration reducing structure of a steam turbine according to claim 7, wherein: the locking nut (53) is a butterfly nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020928799.1U CN212154877U (en) | 2020-05-27 | 2020-05-27 | Shock-absorbing structure of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020928799.1U CN212154877U (en) | 2020-05-27 | 2020-05-27 | Shock-absorbing structure of steam turbine |
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| Publication Number | Publication Date |
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| CN212154877U true CN212154877U (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020928799.1U Active CN212154877U (en) | 2020-05-27 | 2020-05-27 | Shock-absorbing structure of steam turbine |
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| CN (1) | CN212154877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215615A (en) * | 2021-11-30 | 2022-03-22 | 天津国能津能热电有限公司 | Damping mounting base of power plant steam turbine and application method thereof |
-
2020
- 2020-05-27 CN CN202020928799.1U patent/CN212154877U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215615A (en) * | 2021-11-30 | 2022-03-22 | 天津国能津能热电有限公司 | Damping mounting base of power plant steam turbine and application method thereof |
| CN114215615B (en) * | 2021-11-30 | 2023-07-21 | 天津国能津能热电有限公司 | Damping mounting base of power plant steam turbine and application method thereof |
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