CN111852932A - Static balance detection device and method for large-scale blade adjustable water pump hub assembly of nuclear power plant - Google Patents
Static balance detection device and method for large-scale blade adjustable water pump hub assembly of nuclear power plant Download PDFInfo
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- CN111852932A CN111852932A CN202010714298.8A CN202010714298A CN111852932A CN 111852932 A CN111852932 A CN 111852932A CN 202010714298 A CN202010714298 A CN 202010714298A CN 111852932 A CN111852932 A CN 111852932A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 230000003068 static effect Effects 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 230000007704 transition Effects 0.000 claims abstract description 57
- 230000001360 synchronised effect Effects 0.000 claims abstract description 40
- 239000010687 lubricating oil Substances 0.000 claims description 22
- 238000009826 distribution Methods 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 4
- 230000009194 climbing Effects 0.000 description 7
- 230000005484 gravity Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/041—Axial thrust balancing
- F04D29/0416—Axial thrust balancing balancing pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Balance (AREA)
Abstract
A static balance detection device and method for a large-scale blade adjustable water pump hub assembly of a nuclear power plant relate to the technical field of detection. The static balance detection device for the large-scale blade adjustable water pump hub assembly of the nuclear power plant comprises a hoisting mechanism, a support base and an operation station; the supporting base comprises an adjusting table, a supporting table, a stress rod assembly, a first transition flange, a second transition flange and a synchronous jacking mechanism; the supporting table and the synchronous jacking mechanism are arranged on the adjusting table; the lower end of the stress rod assembly is connected with the second transition flange, and the upper end of the stress rod assembly is connected with the first transition flange; the second transition flange is arranged on the support platform; the first transition flange supports the water pump hub assembly of flip-chip, and first transition flange upper end meets with water pump hub's shaft hole. The static balance detection method of the large-scale blade adjustable water pump hub assembly of the nuclear power plant is realized through the device. The invention can verify and mark whether the detected position and quality of the weight to be increased are accurate in time, and has stable detection and small error.
Description
Technical Field
The invention belongs to the technical field of detection, and particularly relates to a static balance detection device and method for a large water pump hub assembly of a nuclear power plant.
Background
Due to the casting and processing errors of the hub blades, mass eccentricity can occur after the blades of the hub assembly of the large-scale blade adjustable circulating water pump of a certain nuclear power plant are replaced. The presence of mass eccentricity produces an eccentricity of the hub center of gravity from the hub axis. When the circulating water pump operates, the mass eccentricity can generate an additional centrifugal force on a rotating part of the pump, and if the centrifugal force is large, the throw of the rotating part of the unit can be increased, so that the vibration of the pump and the abrasion of a bearing are increased, and the stable operation of the circulating water pump is influenced.
Therefore, after the blade of the hub assembly is replaced, a static balance test must be carried out, the mass eccentricity of the hub is found through the static balance test, and the mass eccentricity of the hub assembly is reduced to be within an error allowable range by adding a balance weight or removing the weight in a 180-degree symmetrical direction of the eccentric direction.
For example, the invention discloses equipment for detecting the static balance of a propeller and an error compensation method thereof, wherein the equipment comprises a detection device, the detection device comprises a bearing plate, the center of the upper surface of the bearing plate is provided with a rotating platform fixing end, a rotating platform output end, a rotating platform, a guide rail and an industrial camera, the rotating platform fixing end, the rotating platform output end, the guide rail and the industrial camera are sequentially arranged from bottom to top, the rotating platform output end drives the rotating platform to rotate, the guide rail is provided with a guide bar, one end of the guide rail is provided with a motor, the guide bar is provided with a laser triangulation ranging instrument, and the industrial camera is positioned at the rotating center of the rotating platform; a hydraulic suspension module is arranged at the center of the lower surface of the bearing plate, a sensor conversion platform motor is arranged at the side part of the hydraulic suspension module, a sensor conversion platform is arranged between the hydraulic suspension module and the bearing plate, a mass measurement sensor and a weighing sensor are arranged at the edge position of the sensor conversion platform, and a servo electric cylinder is arranged at the lower part of the weighing sensor; the edge position of the bearing plate is provided with a plurality of electric push rods. The influence of the eccentricity on the unbalanced quality of the final detection result is eliminated by compensating the eccentricity between the center of the propeller and the center of the detection platform in the later period. Although the invention can greatly improve the precision of the propeller static balance detection, the final error is in a very small range, the detection of the unbalanced mass also needs to search the weight position to be removed at the later stage, the efficiency is not high, and the error is easy to generate at the later stage.
Disclosure of Invention
The invention solves the problems that the position and the quality which need to be increased cannot be detected again in time in the detection process during static balance detection in the prior art, and errors are easy to occur, and provides the static balance detection device and the method for the large-scale blade adjustable water pump hub assembly of the nuclear power plant, which can timely verify whether the detected position and the detected quality which need to be increased are accurate and marked, and have stable detection and small errors.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the static balance detection device for the large-scale blade adjustable water pump hub assembly of the nuclear power plant comprises a hoisting mechanism, a support base and an operation station; the supporting base comprises an adjusting table, a supporting table, a stress rod assembly, a first transition flange, a second transition flange and a synchronous jacking mechanism; the supporting table and the synchronous jacking mechanism are arranged on the adjusting table; the lower end of the stress rod assembly is connected with the second transition flange, and the upper end of the stress rod assembly is connected with the first transition flange; the second transition flange is arranged on the support platform; the first transition flange supports the inverted water pump hub assembly, and the upper end of the first transition flange is connected with a shaft hole of the water pump hub; the operation station controls the hoisting mechanism to hoist the water pump hub assembly to be placed on the support base; the operation station receives a deformation signal of the stress rod assembly so as to perform static balance detection on the water pump hub assembly; and the operation station controls the synchronous jacking mechanism to support the water pump hub assembly after the stress of the stress rod assembly is balanced.
The hoisting mechanism is used for hoisting the water pump hub assembly, so that the water pump hub assembly can be conveniently adjusted in position by reaching the supporting base. The adjusting platform is used for adjusting the supporting base to enable the supporting base to be in a horizontal position, and stability of the device on the uneven ground is guaranteed conveniently. And the first transition flange supports the inverted water pump hub assembly. The upper end of the first transition flange is connected with a shaft hole of the water pump hub, and the weight is transmitted to the stress rod assembly. Stress pieces on the stress rod assembly can change after sensing the unbalance of the water pump hub assembly, and the stress size and the stress direction of the stress rod can be measured after the operating station receives the deformation signal, so that the mass and the corresponding position required by unbalance elimination can be sensed, and the weight removing position can be accurately positioned. Synchronous climbing mechanism can be used for the location of water pump wheel hub subassembly, the placing of water pump wheel hub subassembly of being convenient for can support the water pump wheel hub subassembly after detecting simultaneously, has the function of preventing toppling simultaneously.
Preferably, a pressure sensor is arranged on the synchronous jacking mechanism.
When setting up pressure sensor and making synchronous climbing mechanism support water pump wheel hub subassembly, can in time respond to whether the weight that bears surpasss synchronous climbing mechanism's predetermineeing can the biggest bearing pressure, effectively prevent the damage of synchronous climbing mechanism of jacking.
Preferably, the synchronous jacking mechanism comprises two or more hydraulic cylinders, the hydraulic cylinders are connected with the lubricating oil station, and a hydraulic distribution valve is arranged at an outlet of the lubricating oil station.
The hydraulic distribution valve is convenient for remote control, so that the hydraulic cylinders can be synchronously stretched and contracted better, and the stretching condition of the hydraulic cylinders can be monitored in time.
Preferably, the upper end of the first transition flange is provided with a conical structure, and the conical structure is matched with a shaft hole of the water pump hub.
Such setting up can be so that the better coincidence in water pump wheel hub subassembly axle center and supporting pedestal axle center, the accurate location when placing water pump wheel hub subassembly of being convenient for.
Preferably, a plurality of adjustable bolts are arranged on the adjusting table.
The adjustable bolt is adjusted to enable the adjusting platform to be in a horizontal position, so that the supporting base can better work on uneven ground.
The static balance detection method of the large-scale blade adjustable water pump hub assembly of the nuclear power plant adopts the static balance detection device of the large-scale blade adjustable water pump hub assembly of the nuclear power plant as claimed in claim 1, and the method comprises the following steps:
step S01, the operation station controls the hoisting mechanism to hoist the water pump hub assembly with the uniformly adjusted blade angle and reversely rotate, so that the water pump hub assembly is inverted, and simultaneously the operation station controls the synchronous jacking mechanism to return to an auxiliary supporting position;
s02, the operation station controls the hoisting mechanism to place the inverted water pump hub assembly on the first transition flange, the shaft hole of the water pump hub is connected with the upper end of the first transition flange through the adjusting platform in the hoisting process, and the step S03 is executed;
step S03, the operation station receives the stress signal of the stress bar assembly after the tool bolt on the first transition flange is screwed, and transmits the stress signal to the operation station, and the operation station sends out a test reminding signal after receiving the analyzed weight to be removed and the phase angle of the weight;
step S04, after the operation station receives a stress signal of the stress rod assembly after the water pump hub assembly is placed with a balancing weight, the operation station analyzes that no weight needs to be removed, and then the operation station enters step S05, otherwise, the operation station returns to step S02;
and step S05, controlling the synchronous jacking mechanism to support the water pump hub assembly by the operating station, and controlling the hoisting mechanism to hoist the water pump hub assembly to be placed on the storage rack after the tooling bolt on the first transition flange is loosened.
The water pump hub assembly is inverted, the working gravity center of the supporting base can be reduced, and the stability is improved. The blade angle of the water pump hub assembly is uniformly adjusted, so that the mass eccentricity is conveniently measured. The synchronous jacking mechanism of the water pump hub component has a positioning effect and strong overturn prevention capacity, and effective support is provided when the hoisting mechanism hoists the water pump hub component. Make water pump hub's shaft hole and first transition flange upper end meet through the adjustment platform, make the eccentric condition of quality that the stress bar detected water pump hub subassembly better. The operation station receives a stress signal of the stress rod assembly after the balancing weight is placed on the water pump hub assembly and transmits the stress signal to the stress analysis instrument, the weight of the water pump hub assembly needing to be removed and the phase angle of the weight are detected, the detection error is prevented, and the accuracy of the detection result is improved.
Preferably, a pressure sensor is disposed on the synchronous jacking mechanism, and step S02 further includes: when the pressure sensor on the synchronous jacking mechanism receives pressure exceeding the preset pressure, an alarm is sent to the operating station, and the operating station controls the hoisting mechanism to hoist the water pump hub assembly to move away.
Therefore, the synchronous jacking mechanism, the transition flange and the stress rod assembly can be prevented from being damaged.
Preferably, the synchronous jacking mechanism comprises two or more hydraulic cylinders, the hydraulic cylinders are connected with the lubricating oil station, and a hydraulic distribution valve is arranged at an outlet of the lubricating oil station; step S01 specifically includes: the operating station controls the lubricating oil station to uniformly pump out the lubricating oil in the hydraulic cylinder after passing through the hydraulic distribution valve, so that the hydraulic cylinder returns to an auxiliary supporting position; step S05 specifically includes: and the operating station controls the lubricating oil station to uniformly input lubricating oil into the hydraulic cylinder after passing through the hydraulic distribution valve, so that the hydraulic cylinder jacks up the water pump hub assembly.
The hydraulic distribution valve enables the hydraulic cylinders to ascend and descend synchronously, and support is facilitated.
Preferably, a plurality of adjustable bolts are arranged on the adjusting platform; step S02 specifically includes: and the adjusting platform enables a pump shaft matching hole on the water pump hub assembly to be connected with the upper end of the first transition flange by adjusting the adjustable bolt.
The pump shaft matching hole in the water pump hub assembly is smoothly connected with the upper end of the stress rod by adjusting the adjustable bolt, so that the stress rod assembly can be conveniently sensed and measured.
Preferably, step S05 specifically includes: and after the de-weight mark is added on the water pump hub assembly, the operation station controls the synchronous jacking mechanism to support the water pump hub assembly.
Set up the heavy mark of going and be convenient for the later stage to the heavy of going of water pump wheel hub subassembly, need not the later stage again to go to look for the weight and the position that need remove.
Compared with the prior art, the invention has the advantages that:
(1) utilize hoisting machine to hoist water pump wheel hub subassembly, more make water pump wheel hub subassembly more conveniently obtain to reach the support pedestal and also be convenient for position adjustment, more be applicable to large-scale device and measure.
(2) Synchronous climbing mechanism can be used for the location of water pump wheel hub subassembly, the placing of water pump wheel hub subassembly of being convenient for can support the water pump wheel hub subassembly after detecting simultaneously, has the function of preventing toppling simultaneously.
(3) During detection, the water pump hub assembly is inverted, the working gravity center of the supporting base can be reduced, and the stability is improved.
(4) The operation station receives a stress signal of the stress rod assembly after the balancing weight is placed on the water pump hub assembly, and further verification is carried out after the weight needing to be removed and the phase angle of the weight position are detected, so that the detection error is prevented, and the accuracy of the detection result is improved.
(5) The pump shaft preparation hole on the water pump hub assembly is connected with the upper end of the first transition flange, so that the water pump hub assembly can be accurately positioned and the measurement of mass eccentricity is facilitated.
(6) After placing the balancing weight test, on relevant position can add the heavy mark of going on the water pump hub subassembly to the later stage of being convenient for is removed the heavy to the going of water pump hub subassembly, and the later stage is removed again and is sought the weight position that needs remove.
(7) The adjustable bolt is adjusted to enable the adjusting platform to be in a horizontal position, so that the supporting base can better work on uneven ground.
Drawings
FIG. 1 is a schematic diagram of a static balance detection device of a large-scale blade adjustable water pump hub assembly of a nuclear power plant.
FIG. 2 is a schematic diagram of a water pump hub assembly of the static balance detection device of the large-scale blade adjustable water pump hub assembly of the nuclear power plant.
FIG. 3 is a flow chart of a static balance detection method of a large-scale blade adjustable water pump hub assembly of a nuclear power plant.
In the figure: 1-a water pump hub component, 11-blades, 12-an axle hole, 2-an adjusting table, 21-an adjustable bolt, 3-a tooling bolt, 4-a supporting table, 5-a stress rod component, 6-a first transition flange, 7-a second transition flange, 8-a hydraulic cylinder and 81-a pressure sensor.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in FIG. 1, the static balance detection device for the large-scale blade adjustable water pump hub assembly of the nuclear power plant comprises a hoisting mechanism, a support base and an operation station; the supporting base comprises an adjusting table 2, a supporting table 4, a stress rod assembly 5, a first transition flange 6, a second transition flange 7 and a synchronous jacking mechanism; the supporting table 4 and the synchronous jacking mechanism are arranged on the adjusting table 2; the lower end of the stress rod assembly 5 is connected with a second transition flange 7, and the upper end of the stress rod assembly is connected with a first transition flange 6; the second transition flange 7 is arranged on the support table 4; the first transition flange 6 supports the inverted water pump hub assembly 1, and the upper end of the first transition flange 6 is connected with a shaft hole 12 of the water pump hub; the operation station controls the hoisting mechanism to hoist the water pump hub assembly 1 to be placed on the support base; the operation station receives a deformation signal of the stress rod assembly 5 so as to perform static balance detection on the water pump hub assembly 1; and the operation station controls the synchronous jacking mechanism to support the water pump hub assembly 1 after the stress of the stress rod assembly 5 is balanced.
The hoisting mechanism is used for hoisting the water pump hub assembly 1, so that the water pump hub assembly 1 can be conveniently adjusted in position by reaching the supporting base, and the water pump hub assembly is more suitable for measuring large-scale devices.
The adjusting table 2 is used for adjusting the supporting base to enable the supporting base to be in a horizontal position, the device is convenient to guarantee stability on the ground due to unevenness, sixteen adjustable bolts 21 are arranged on the adjusting table 2, the four corners of the adjusting table 2 are provided with the adjustable bolts 21, three adjustable bolts 21 are evenly arranged among the four adjustable bolts 21, and the adjusting table 2 is adjustable in accuracy and can be kept horizontal more easily when adjusted due to the arrangement.
The supporting table 4 is placed in the middle of the adjusting table 2, so that the weight borne by the supporting table 4 can be uniformly transmitted to the adjusting table 2, and the bearing capacity of the adjusting table 2 is improved. The side surface of the support platform 4 is trapezoidal, and the arrangement is to prevent the support platform 4 from deforming and falling or breaking when a heavy object is placed.
And the first transition flange 6 supports the water pump hub assembly 1 and transfers its weight to the stress rod assembly 5. The stress rod assembly 5 comprises a stress rod and a stress sheet on the stress rod. The stress sheet can be changed after sensing the unbalance of the water pump hub assembly 1, and the stress size and the stress direction of the stress rod can be measured after the operating station receives the deformation signal, so that the mass and the corresponding position required by unbalance elimination can be sensed, and the weight removing position can be accurately positioned. The upper end of the first transition flange 6 is provided with a conical structure, and the conical structure is matched with the shaft hole 12 of the water pump hub. Such setting can make 1 axle center of water pump wheel hub subassembly and the better coincidence of support base axle center, be convenient for accurate location when placing water pump wheel hub subassembly 1. The second transition flange 7 connects the stress bar with the support table 4, so that the stress bar can be fixed conveniently.
Synchronous climbing mechanism can be used for the location of water pump wheel hub subassembly 1, the placing of water pump wheel hub subassembly 1 of being convenient for can support water pump wheel hub subassembly 1 after detecting simultaneously, has the function of preventing toppling simultaneously.
The synchronous jacking mechanism comprises four hydraulic cylinders 8, the hydraulic cylinders 8 are all connected with a lubricating oil station, and a hydraulic distribution valve is arranged at an outlet of the lubricating oil station. The hydraulic distribution valve is convenient for remote control, so that the hydraulic cylinders 8 can be synchronously stretched and contracted better, and the stretching condition of the hydraulic cylinders 8 can be monitored in time. The hydraulic cylinders 8 are four in number, so that if one hydraulic cylinder 8 breaks down, the lifting operation can still be completed by the residual hydraulic cylinders 8, and the safety is guaranteed.
Be provided with pressure sensor 81 on four pneumatic cylinders 8 for when pneumatic cylinder 8 supported water pump wheel hub subassembly 1, whether can in time respond to the weight that bears surpass pneumatic cylinder 8 predetermine can the biggest bearing pressure, effectively prevent pneumatic cylinder 8's damage.
The static balance detection method for the large-scale blade adjustable water pump hub assembly of the nuclear power plant comprises the following steps:
and step S01, the operation station controls the hoisting mechanism to hoist the water pump hub assembly 1 with the uniformly adjusted angle of the blades 11 and reversely rotate, so that the water pump hub assembly 1 is inverted, and simultaneously the operation station controls the lubricating oil station to uniformly pump out the lubricating oil in the hydraulic cylinder 8 after passing through the hydraulic distribution valve, so that the hydraulic cylinder 8 returns to the auxiliary supporting position. The angle adjustment of the blades 11 of the water pump hub assembly 1 is to fix the hub assembly by using a hub assembly opening adjusting tool and rotate the hub assembly to a fixed opening position and a fixed rotating angle, and then fix the opening of the hub assembly by using a copper wedge block. The water pump hub assembly 1 is inverted, the working gravity center of the supporting base can be reduced, and the stability is improved.
Step S02, the operation station controls the hoisting mechanism to place the inverted water pump hub assembly 1 on the first transition flange 6, the shaft hole 12 of the water pump hub is connected with the upper end of the first transition flange 6 through the adjusting platform 2 in the hoisting process, and the step S03 is carried out;
be provided with pressure sensor 81 on the synchronous climbing mechanism, step S02 still includes: when the pressure sensor 81 on the synchronous jacking mechanism receives pressure exceeding the preset pressure, an alarm is sent to the operating station, and the operating station controls the hoisting mechanism to hoist the water pump hub assembly 1 to move away. Thereby preventing the damage of the synchronous jacking mechanism, the first transition flange 6 and the stress rod assembly 5.
The adjusting platform 2 enables a pump shaft matching hole on the water pump hub component 1 to be connected with the upper end of the stress rod component 5 by adjusting the adjustable bolt 21, so that the axis of the water pump hub component 1 is coincided with the axis of the supporting base. The shaft hole 12 on the water pump hub assembly 1 is connected with the upper end of the stress rod, so that the water pump hub assembly 1 can be placed more conveniently, the accurate positioning is realized, and the measurement of mass eccentricity is more convenient. The pump shaft matching hole on the water pump hub component 1 is smoothly connected with the upper end of the stress rod by adjusting the adjustable bolt 21, so that the induction measurement of the stress rod component 5 is facilitated.
Step S03, the operation station receives the stress signal of the stress bar component 5 after the tool bolt 3 on the first transition flange 6 is screwed up, and transmits the stress signal to the operation station, and the operation station sends out a test reminding signal after receiving the analyzed weight to be removed and the phase angle of the weight;
and step S04, after the operation station receives the stress signal of the stress rod assembly 5 after the water pump hub assembly 1 is placed with the balancing weight, the operation station analyzes that no weight needs to be removed, and then the operation station enters step S05, otherwise, the operation station returns to step S02.
The stress signal that the operating station received stress rod subassembly 5 after the balancing weight was placed at water pump wheel hub subassembly 1 is transmitted to the operating station, carries out further verification after the phase angle in order to detect the weight that water pump wheel hub subassembly 1 need be got rid of and weight department, prevents the production of detection error, has improved the accuracy of testing result.
And step S05, after the de-weighting mark is added on the water pump hub assembly 1, the operation station controls the synchronous jacking mechanism to support the water pump hub assembly 1. After the tool bolt 3 on the first transition flange 6 is loosened, the hoisting mechanism is controlled to hoist the water pump hub assembly 1 and place the water pump hub assembly on a storage rack.
Add the heavy mark of going, the later stage of being convenient for is gone again to the heavy of going of water pump wheel hub subassembly 1 and is look for the weight position that needs remove in the later stage. The weight removal mark can be added by marking the mass data on the balancing weight on the water pump hub assembly 1 through printing and dyeing, or marking the position where the balancing weight is correspondingly placed by a worker after the weight is not required to be removed.
And finally, according to the test result and the mark on the hub, finishing the duplicate removal operation.
After the static balance detection is started, the wheel hub assembly is fixed by the wheel hub assembly opening adjusting tool and rotates to a fixed opening position and a fixed rotating angle, and the opening of the wheel hub assembly is fixed by the copper wedge blocks. The operation station controls the hoisting mechanism to hoist the water pump hub assembly 1 with the blades 11 uniformly adjusted in angle and reversely rotate, so that the water pump hub assembly 1 is inverted, meanwhile, the operation station controls the lubricating oil station to uniformly pump out lubricating oil in the hydraulic cylinders 8 after passing through the hydraulic distribution valve, and the four hydraulic cylinders 8 return to auxiliary supporting positions. Then, the operation station controls the hoisting mechanism to place the inverted water pump hub assembly 1 on the first transition flange 6, the shaft hole 12 of the water pump hub is connected with the upper end of the first transition flange 6 through the adjusting platform 2 in the hoisting process, so that the shaft center of the water pump hub assembly 1 is superposed with the shaft center of the supporting base, the tooling bolt 3 is screwed, and the water pump hub assembly 1 is hoisted if the pressure sensor gives an alarm. The stress rod assembly 5 senses the pressure and sends a stress signal to the operation station. And the operation station sends out a test reminding signal after receiving the analyzed weight to be removed and the phase angle of the weight, and then carries out verification test. The water pump hub assembly 1 places the balancing weight according to the weight needing to be removed obtained through analysis and the phase angle where the weight is located, after placement is completed, the stress rod assembly 5 sends a current stress signal to the operation station, the operation station conducts de-weighting marking if analysis shows that the information of the weight needing to be removed does not exist, and otherwise, the water pump hub assembly 1 begins to be detected again. After the weight removal mark is finished, the hydraulic cylinder 8 jacks up the water pump hub assembly 1, and after all the tooling bolts 3 are loosened, the hoisting mechanism is controlled to hoist the water pump hub assembly 1 and place the water pump hub assembly on a storage rack. And finally, according to the test result and the mark on the hub, finishing the duplicate removal operation.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. Large-scale adjustable water pump hub subassembly static balance detection device of blade of nuclear power plant, its characterized in that: comprises a hoisting mechanism, a supporting base and an operating station; the supporting base comprises an adjusting table, a supporting table, a stress rod assembly, a first transition flange, a second transition flange and a synchronous jacking mechanism; the supporting table and the synchronous jacking mechanism are arranged on the adjusting table; the lower end of the stress rod assembly is connected with the second transition flange, and the upper end of the stress rod assembly is connected with the first transition flange; the second transition flange is arranged on the support platform; the first transition flange supports the inverted water pump hub assembly, and the upper end of the first transition flange is connected with a shaft hole of the water pump hub; the operation station controls the hoisting mechanism to hoist the water pump hub assembly to be placed on the support base; the operation station receives a deformation signal of the stress rod assembly so as to perform static balance detection on the water pump hub assembly; and the operation station controls the synchronous jacking mechanism to support the water pump hub assembly after the stress of the stress rod assembly is balanced.
2. The nuclear power plant large blade adjustable water pump hub assembly static balance detection device as recited in claim 1, wherein the synchronous jacking mechanism is provided with a pressure sensor.
3. The device for detecting the static balance of the large-scale blade adjustable water pump hub assembly of the nuclear power plant according to claim 1, wherein the synchronous jacking mechanism comprises two or more hydraulic cylinders, the hydraulic cylinders are connected with a lubricating oil station, and a hydraulic distribution valve is arranged at an outlet of the lubricating oil station.
4. The device for detecting the static balance of the large-scale blade adjustable water pump hub assembly of the nuclear power plant as claimed in claim 1, wherein a conical structure is arranged at the upper end of the first transition flange, and the conical structure is matched with a shaft hole of the water pump hub.
5. The device for detecting the static balance of the large-scale blade adjustable water pump hub assembly of the nuclear power plant as claimed in claim 1, wherein a plurality of adjustable bolts are arranged on the adjusting platform.
6. The static balance detection method of the large-scale blade adjustable water pump hub assembly of the nuclear power plant adopts the static balance detection device of the large-scale blade adjustable water pump hub assembly of the nuclear power plant as claimed in claim 1, and is characterized by comprising the following steps:
step S01, the operation station controls the hoisting mechanism to hoist the water pump hub assembly with the uniformly adjusted blade angle and reversely rotate, so that the water pump hub assembly is inverted, and simultaneously the operation station controls the synchronous jacking mechanism to return to an auxiliary supporting position;
s02, the operation station controls the hoisting mechanism to place the inverted water pump hub assembly on the first transition flange, the shaft hole of the water pump hub is connected with the upper end of the first transition flange through the adjusting platform in the hoisting process, and the step S03 is executed;
step S03, the operation station receives the stress signal of the stress bar assembly after the tool bolt on the first transition flange is screwed, and transmits the stress signal to the operation station, and the operation station sends out a test reminding signal after receiving the analyzed weight to be removed and the phase angle of the weight;
step S04, after the operation station receives a stress signal of the stress rod assembly after the water pump hub assembly is placed with a balancing weight, the operation station analyzes that no weight needs to be removed, and then the operation station enters step S05, otherwise, the operation station returns to step S02;
and step S05, controlling the synchronous jacking mechanism to support the water pump hub assembly by the operating station, and controlling the hoisting mechanism to hoist the water pump hub assembly to be placed on the storage rack after the tooling bolt on the first transition flange is loosened.
7. The method for detecting the static balance of the hub assembly of the large water pump of the nuclear power plant according to claim 6, wherein the synchronous jacking mechanism is provided with a pressure sensor, and the step S02 further comprises: when the pressure sensor on the synchronous jacking mechanism receives pressure exceeding the preset pressure, an alarm is sent to the operating station, and the operating station controls the hoisting mechanism to hoist the water pump hub assembly to move away.
8. The method for detecting the static balance of the large water pump hub assembly of the nuclear power plant according to claim 6, wherein the synchronous jacking mechanism comprises two or more hydraulic cylinders, the hydraulic cylinders are connected with a lubricating oil station, and a hydraulic distribution valve is arranged at an outlet of the lubricating oil station; step S01 specifically includes: the operating station controls the lubricating oil station to uniformly pump out the lubricating oil in the hydraulic cylinder after passing through the hydraulic distribution valve, so that the hydraulic cylinder returns to an auxiliary supporting position; step S05 specifically includes: and the operating station controls the lubricating oil station to uniformly input lubricating oil into the hydraulic cylinder after passing through the hydraulic distribution valve, so that the hydraulic cylinder jacks up the water pump hub assembly.
9. The method for detecting the static balance of the hub assembly of the large-scale water pump of the nuclear power plant according to claim 6, wherein a plurality of adjustable bolts are arranged on the adjusting platform; step S02 specifically includes: and the adjusting platform enables a pump shaft matching hole on the water pump hub assembly to be connected with the upper end of the first transition flange by adjusting the adjustable bolt.
10. The method for detecting the static balance of the hub assembly of the large water pump of the nuclear power plant according to claim 6, wherein the step S05 specifically comprises the following steps: and after the de-weight mark is added on the water pump hub assembly, the operation station controls the synchronous jacking mechanism to support the water pump hub assembly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010714298.8A CN111852932A (en) | 2020-07-23 | 2020-07-23 | Static balance detection device and method for large-scale blade adjustable water pump hub assembly of nuclear power plant |
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| CN202010714298.8A CN111852932A (en) | 2020-07-23 | 2020-07-23 | Static balance detection device and method for large-scale blade adjustable water pump hub assembly of nuclear power plant |
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