CN102983684A - Installation method of split base seat high speed long shaft big motor - Google Patents
Installation method of split base seat high speed long shaft big motor Download PDFInfo
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- CN102983684A CN102983684A CN2011102632055A CN201110263205A CN102983684A CN 102983684 A CN102983684 A CN 102983684A CN 2011102632055 A CN2011102632055 A CN 2011102632055A CN 201110263205 A CN201110263205 A CN 201110263205A CN 102983684 A CN102983684 A CN 102983684A
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Abstract
An installation method of a split base seat high speed long shaft big motor is characterized in that the method includes the following steps: a, placing a trolley rail; b, fixing stator on the trolley; c, enabling a rotor to penetrate a stator; d, adjusting a motor; e, aligning a motor long shaft coupling. The installation method of the split base seat high speed long shaft big motor has the advantages of being reasonable in design, accurate in penetration of the rotor, easy to operate, accurate in indication display and capable of saving a large amount of construction time and reducing installation cost due to the fact that a shaft laser alignment is used.
Description
Technical field
The present invention relates to a kind of electric motor mounting method, specifically, is the large electric motor mounting method of a kind of split base high speed major axis.
Background technology
Rotor and stator are to twine silicon steel sheet by copper coil to process, the gap only has 20mm around stator and the rotor, require rotor to pass across stator during the rotor punching, and can not wipe and run into stator coil, possibly can't run well or leak electricity if wipe the whole motor of the words run into stator coil or insulating barrier, be difficult to rotor is packed in the stator courage with known method lifting, rotor is conducted oneself with dignity just 17 tons, and the rotor gap is too small, is difficult to accomplish that safety and stability, fast punching put in place.At least need two hoisting equipments to lift according to prior art motor piercing core hanging, rotor bit by bit need to be sent into stator, need repeatedly change suspension centre, be difficult to realize rotor safety, the stable stator interior that penetrates, working hour is very long, and on-the-spot place can not allow two hoisting equipment punchings.Utilize prior art to be difficult to control simultaneously the data such as motor bearing gap, end play, rotor breath, magnetic force center, mix up bush gap after, the end play that has mixed up probably changes, and need readjust again, does so time-consuming.
Utilize known dial gauge method of adjustment that a lot of difficulties are also arranged, the first major axis of the present invention is 5000mm, be difficult to set up instrument with the dial gauge measurement, adjustment can't operate substantially for the universal method dial gauge, dial gauge can't set up, and more can not talk deviation range and control, and the installation accuracy of the large motor of its two split base high speed major axis of the present invention is 0.1mm, be difficult to accomplish the aligning of major axis with the method for dial gauge adjustment, its general deviation is at 0.8mm.
Therefore known electric motor mounting method exists above-mentioned all inconvenience and problem.
Summary of the invention
Purpose of the present invention is to propose a kind ofly to adopt rotor+stator to move+drive a vehicle the lifting hanging beam to make the large electric motor mounting method of split base high speed major axis that the motor punching puts the motor one piece in place.
Another object of the present invention is to propose a kind of split type stator and is connected with the major axis of rotor base and the aligning large electric motor mounting method of split base high speed major axis that to reach its shaft coupling alignment deviation be 0.1mm.
Another purpose of the present invention is to propose a kind of laser alignment instrument that utilizes and detects the large electric motor mounting method of split base high speed major axis of adjusting split type stator and rotor base.
For achieving the above object, technical solution of the present invention is:
The large electric motor mounting method of a kind of split base high speed major axis is characterized in that may further comprise the steps:
A, laying trolley track
Centered by the main motor shaft line, lay the stator trolley track;
B, stator is fixed in chassis
Stator hoisting on chassis, is carried out the adjustment location of stator absolute altitude, center, levelness, and adjust the depth of parallelism of main motor shaft line and stator;
C, rotor punching
Rotor dummy shaft and relevant coupling bolt are installed, are used driving, hanging beam and assembly pulley that rotor is sling, make described rotor center absolute altitude consistent with the stator center absolute altitude, stator slowly is pushed into the lifting rope limit from rotor dummy shaft end carries out punching; Change the outer suspension centre on the hanging beam, take off inner rope, stator is continued slowly to be pushed into the equilibrium point of iron core; Free side dado and bearing are installed; Pad is with the vulcan fibre lath in the air gap, putting down steel cable with driving slings rotor, stator and rotor synchronous are sling, integral body winches to station with motor, and hoist cable tension force is consistent and prevents from the extruding phenomenon occurs between stator and rotor, then falls stator, pierce into anchor bolt, remove the rotor dummy shaft, fall into lower bearing (bearing pedestal), rotor is put down in driving;
D, motor adjustment
Adjust rotor with the adjustment bearing pedestal first, the rotor location can not be moved rotor behind the motor long shaft coupler aligning, adjusts stator again, and mobile stator is adjusted bush gap, mobile stator is adjusted stator and rotor end-face gap, rotor breath, magnetic force center again, and motor is adjusted the test post-grouting fully;
E, motor long shaft coupler aligning
Data with the generating laser emission are received by the receiver, two shaft couplings rotate synchronously, the deviation that very clearly reflects center between two shaft couplings of motor and equipment, the lower shaft bearing of the load side pedestal of mounted motor, traction hanging beam, the upper roller motor of first lifting, roller motor under the rear installation, lower roller motor carries out adjustment in place with transmission long axis before installing, and uses German FAG laser alignment instrument to detect and adjusts.
The large electric motor mounting method of split base high speed major axis of the present invention can also be further achieved by the following technical measures.
Aforesaid method, among the wherein said step a, the stator trolley track lays that precision is 0.1/1000, levelness 0.1/1000, interorbital levelness 0.1/1000.
Aforesaid method, in the wherein said steps d, stator and rotor breath adjustment make the gap between rotor outer ring silicon steel sheet index plane and the stator inner ring silicon steel sheet index plane even, and permissible variation is ± 1mm.
Aforesaid method, in the wherein said steps d, stator and rotor end-face gap make the distance all around between stator and rotor axial end face and the end face even, and permissible variation is ± 0.5mm.
Aforesaid method, in the wherein said steps d, magnetic force center makes the magnet-wire center of stator coil and rotor coil, and by adjusting axle journal end and stator faces distance, permissible variation is ± 0.5mm.
Aforesaid method, in the wherein said steps d, bush gap makes that the gap is 0 under the lower bearing, and gap, upper and lower bearing shell both sides is 1.5mm.
Aforesaid method, among the wherein said step e, transmission long axis carries out the long shaft coupler adjustment of adjustment in place and uses German FAG laser alignment instrument to detect adjustment;
Aforesaid method, wherein said use Germany FAG laser alignment instrument detects method of adjustment and may further comprise the steps:
(1), input needs Type for Coupling, shaft size, shaft coupling size, anchor bolt number, motor size and the rotary speed data of adjustment;
(2), reflector, receiver are fixed with special chain, guaranteed the stability in the adjustment process, centering is adjusted to when beginning to measure zero point, the inspection of carrying out weak foot (only need to be loosening with each anchor bolt, the deviation of each anchor bolt of instrument meeting automatic diagnosis, adjust parallels and remove deviation), there namely do not have urgent parallels to carry out to be urgent;
(3), to any direction or less than 120 degree axles rotations with the axle of measuring assembly to any three positions 9,12,3 or 6 the time (press enter key) input data;
(4), clear the demonstrating of instrument eliminated the required adjustment data communication device of angle and crossed the lifting inclined sizing block and adjust.
After adopting technique scheme, the large electric motor mounting method of split base high speed major axis of the present invention has the following advantages:
1, installation steps are reasonable in design, simple to operate, make punching accurate, and the equipment of not damaging reduces the lifting operation difficulty.
2, it is clear and definite to utilize the laser alignment instrument reading to show, adjusts accurately simple.
3, save a large amount of engineering times, reduce installation cost.
Description of drawings
Fig. 1 is that the stator of the embodiment of the invention is fixed on the schematic diagram on the track chassis;
Fig. 2 is that hoist cable C replaces hoist cable B schematic diagram in the rotor punching process of the embodiment of the invention;
Fig. 3 is that P among Fig. 2 is to view;
Fig. 4 is the main motor schematic diagram of slinging after the punching of the embodiment of the invention finishes;
Fig. 5 is that Q among Fig. 4 is to view;
Fig. 6 is once schematic diagram in place of the main motor of slinging of the embodiment of the invention;
Fig. 7 be the embodiment of the invention install the roller motor schematic diagram.
Among the figure: 1 stator, 2 stators are mobile trolley used, the mobile trolley used track of 3 stators, 4 hanging beams, 5 rotors, 6 dummy shafts, 7 endless cables (Φ 50mm endless cable), 8(20t) assembly pulley, 95t jack, 10 hanging beams, 11 sliding panels, 12 motors, 13 vulcan fibre backing plate δ=4～5mm, the 1450t jack, 15 wooden voussoirs, 16 Φ, 45 steel wire ropes, 17 free side dado and bearings, 18 base plates, 19 load side pedestal and bearings.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof the present invention is illustrated further.
The large electric motor mounting method of split base high speed major axis of the present invention is characterized in that may further comprise the steps:
A, laying trolley track
Fig. 1 is that the stator of the embodiment of the invention is fixed on the schematic diagram on the track chassis, lays the stator trolley track centered by the main motor shaft line, and the stator trolley track is laid precision 0.1/1000, levelness 0.1/1000, interorbital levelness 0.1/1000;
B, stator is fixed in chassis
Stator hoisting on chassis, is carried out the adjustment location of stator absolute altitude, center, levelness, and adjust the depth of parallelism of main motor shaft line and stator;
C, rotor punching
Now see also Fig. 2～Fig. 4, Fig. 2 is that hoist cable C replaces hoist cable B schematic diagram in the rotor punching process of the embodiment of the invention, Fig. 3 be P among Fig. 2 to view, Fig. 4 is the main motor schematic diagram of slinging after the punching of the embodiment of the invention finishes, Fig. 5 is that Q among Fig. 4 is to view.Safe safety during in order to ensure the rotor punching adopts the travelling crane truck location, and the punching of driving carriage walking needs the construction method to construction location is lifted by crane rotor in rotor leveling levelling more synchronously after the rotor movement punching puts in place.
Rotor dummy shaft and relevant coupling bolt are installed, are used driving, hanging beam and assembly pulley that rotor is sling, make described rotor center absolute altitude consistent with the stator center absolute altitude, stator slowly is pushed into the lifting rope limit from rotor dummy shaft end carries out punching; Hoist cable C is installed, cancellation hoist cable B, the concentricity of detection, adjustment stator and rotor; Free side dado and bearing are installed simultaneously; Hoist cable B is installed again, gets hoist cable C, with vulcanized fiber board and wooden voussoir the air gap between rotor and stator is padded.Hoist cable D, E are installed.Strain simultaneously hoist cable A, B, D, E, make uniform tension in order, put down steel cable with driving rotor is sling, stator and rotor synchronous are sling, integral body winches to station with motor, falls stator, pierces into anchor bolt, remove the rotor dummy shaft, fall into lower bearing (bearing pedestal), rotor is put down in driving.
D, motor adjustment
Adjust rotor with the adjustment bearing pedestal first, the rotor location can not be moved rotor behind the motor long shaft coupler aligning, adjusts stator again, and mobile stator is adjusted bush gap, mobile stator is adjusted stator and rotor end-face gap, rotor breath, magnetic force center again, and motor is adjusted the test post-grouting fully;
E, motor long shaft coupler aligning
Data with the generating laser emission are received by the receiver, two shaft couplings rotate synchronously, the deviation that very clearly reflects center between two shaft couplings of motor and equipment, the lower shaft bearing of the load side pedestal of mounted motor, traction hanging beam, the upper roller motor of first lifting, roller motor under the rear installation, lower roller motor carries out adjustment in place with transmission long axis before installing, and uses German FAG laser alignment instrument to detect and adjusts; The stator rotor breath: the gap between rotor outer ring silicon steel sheet index plane and the stator inner ring silicon steel sheet index plane, the gap is even around requiring, and permissible variation is ± 1mm; The stator rotor end clearance: the distance between stator and rotor axial end face and the end face, distance must be evenly all around, and permissible variation is ± 0.5mm; Magnetic force center: the magnet-wire center of stator coil and rotor coil, require in theory two center superpositions, after the motor coil energising, rotor coil is rotated by electromagnetic field effect generation electromagnetic torque power, confirm by adjusting axle journal end and stator faces distance, fixed value is provided on the design drawing, and permissible variation is ± 0.5mm; Bush gap: minute top bearing shell gap and lower bearing gap.The lower bearing gap, owing to the complete forward rear bearing block of rotor supports, two of bearing shaft watt-minutes, the gap is 0 under the lower bearing, gap, upper and lower bearing shell both sides is 1.5.
Major axis of the present invention connects and aligning, because rolling mill line driving side and fore side are distributed between two of factory building strides, distant, so that driving shaft is the longest is 5040mm, and the motor maximum (top) speed is 1500r/min, requires the shaft coupling alignment deviation minimum, is 0.1mm, because stator and rotor base are split type, and adjustment is caused very big difficulty.Carry out the long shaft coupler adjustment of adjustment in place at transmission long axis and use German FAG laser alignment instrument to detect adjustment, use German FAG laser alignment instrument to detect method of adjustment and may further comprise the steps:
(1), input needs Type for Coupling, shaft size, shaft coupling size, anchor bolt number, motor size and the rotary speed data of adjustment;
(2), reflector, receiver are fixed with special chain, guaranteed the stability in the adjustment process, centering is adjusted to when beginning to measure zero point, the inspection of carrying out weak foot (only need to be loosening with each anchor bolt, the deviation of each anchor bolt of instrument meeting automatic diagnosis, adjust parallels and remove deviation), there namely do not have urgent parallels to carry out to be urgent;
(3), to any direction or less than 120 degree axles rotations with the axle of measuring assembly to any three positions 9,12,3 or 6 the time (press enter key) input data;
(4), clear the demonstrating of instrument eliminated the required adjustment data communication device of angle and crossed the lifting inclined sizing block and adjust.
It is simple to operate to use laser alignment instrument detection adjustment to make, and uses easily, and is all automatic measurement navigation system, and it adjusts more accurate than conventional method (ruler, dial gauge).
Above embodiment is only for explanation the present invention, but not limitation of the present invention, person skilled in the relevant technique in the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or variation.Therefore, all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (8)
1. large electric motor mounting method of split base high speed major axis is characterized in that may further comprise the steps:
A, laying trolley track
Centered by the main motor shaft line, lay the stator trolley track;
B, stator is fixed in chassis
Stator hoisting on chassis, is carried out the adjustment location of stator absolute altitude, center, levelness, and adjust the depth of parallelism of main motor shaft line and stator;
C, rotor punching
Rotor dummy shaft and relevant coupling bolt are installed, are used driving, hanging beam and assembly pulley that rotor is sling, make described rotor center absolute altitude consistent with the stator center absolute altitude, stator slowly is pushed into the lifting rope limit from rotor dummy shaft end carries out punching; Change the outer suspension centre on the hanging beam, take off inner rope, stator is continued slowly to be pushed into the equilibrium point of iron core; Free side dado and bearing are installed; Pad puts down steel cable with driving rotor is sling with the vulcan fibre lath in the air gap, and stator and rotor synchronous are sling, and integral body winches to station with motor, falls stator, pierces into anchor bolt, removes the rotor dummy shaft, falls into lower bearing, and rotor is put down in driving;
D, motor adjustment
Adjust rotor with the adjustment bearing pedestal first, the rotor location can not be moved rotor behind the motor long shaft coupler aligning, adjusts stator again, and mobile stator is adjusted bush gap, mobile stator is adjusted stator and rotor end-face gap, rotor breath, magnetic force center again, and motor is adjusted the test post-grouting fully;
E, motor long shaft coupler aligning
Data with the generating laser emission are received by the receiver, two shaft couplings rotate synchronously, the deviation that very clearly reflects center between two shaft couplings of motor and equipment, the lower shaft bearing of the load side pedestal of mounted motor, traction hanging beam, the upper roller motor of first lifting, roller motor under the rear installation, lower roller motor carries out adjustment in place with transmission long axis before installing, and uses German FAG laser alignment instrument to detect and adjusts.
2. the large electric motor mounting method of split base high speed major axis as claimed in claim 1 is characterized in that, among the described step a, the stator trolley track lays that precision is 0.1/1000, levelness 0.1/1000, interorbital levelness 0.1/1000.
3. the large electric motor mounting method of split base high speed major axis as claimed in claim 1, it is characterized in that, in the described steps d, stator and rotor breath adjustment make the gap between rotor outer ring silicon steel sheet index plane and the stator inner ring silicon steel sheet index plane even, and permissible variation is ± 1mm.
4. the large electric motor mounting method of split base high speed major axis as claimed in claim 1 is characterized in that, in the described steps d, stator and rotor end-face gap make the distance all around between stator and rotor axial end face and the end face even, and permissible variation is ± 0.5mm.
5. the large electric motor mounting method of split base high speed major axis as claimed in claim 1, it is characterized in that in the described steps d, magnetic force center makes the magnet-wire center of stator coil and rotor coil, by adjusting axle journal end and stator faces distance, permissible variation is ± 0.5mm.
6. the large electric motor mounting method of split base high speed major axis as claimed in claim 1 is characterized in that, in the described steps d, bush gap makes that the gap is 0 under the lower bearing, and gap, upper and lower bearing shell both sides is 1.5mm.
7. the large electric motor mounting method of split base high speed major axis as claimed in claim 1 is characterized in that, among the described step e, transmission long axis carries out the long shaft coupler adjustment of adjustment in place and uses German FAG laser alignment instrument to detect adjustment.
8. the large electric motor mounting method of split base high speed major axis as claimed in claim 7 is characterized in that, the German FAG laser alignment instrument of described use detects method of adjustment and may further comprise the steps:
(1), input needs Type for Coupling, shaft size, shaft coupling size, anchor bolt number, motor size and the rotary speed data of adjustment;
(2), reflector, receiver fix with special chain, centering is adjusted to when beginning to measure zero point, carries out the inspection of weak foot, there do not have urgent parallels to carry out to be urgent;
(3), to any direction or less than 120 degree axles rotations with the axle of measuring assembly input data to any three positions 9,12,3 or 6 time;
(4), clear the demonstrating of instrument eliminated the required adjustment data communication device of angle and crossed the lifting inclined sizing block and adjust.
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| CN103967947A (en) * | 2014-04-21 | 2014-08-06 | 鞍钢股份有限公司 | Method for improving coaxiality of couplers |
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| CN103411592A (en) * | 2013-08-28 | 2013-11-27 | 南京南化建设有限公司 | Laser centering device and centering method thereof |
| CN104716799A (en) * | 2013-12-12 | 2015-06-17 | 五冶集团上海有限公司 | Rotor adjusting support, manufacturing method of rotor adjusting support and application of rotator adjusting support in on-site core perforation |
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| CN109274232B (en) * | 2018-11-30 | 2021-01-19 | 上海宝冶集团有限公司 | Hydraulic gantry crane core-penetrating installation method for large motor |
| CN112072865A (en) * | 2020-08-08 | 2020-12-11 | 广东韶钢工程技术有限公司 | Large-scale motor online core-pulling device and application method thereof |
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| CN113872397B (en) * | 2021-10-29 | 2022-11-04 | 中广核核电运营有限公司 | Generator rotor moving method and generator rotor drawing-through method |
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