CN114499070A - Phase modifier rotor mounting method - Google Patents
Phase modifier rotor mounting method Download PDFInfo
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- CN114499070A CN114499070A CN202111602462.7A CN202111602462A CN114499070A CN 114499070 A CN114499070 A CN 114499070A CN 202111602462 A CN202111602462 A CN 202111602462A CN 114499070 A CN114499070 A CN 114499070A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 29
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- 238000006073 displacement reaction Methods 0.000 claims description 20
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 239000000314 lubricant Substances 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims 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 claims 1
- 230000001012 protector Effects 0.000 claims 1
- 239000004677 Nylon Substances 0.000 description 7
- 229920001778 nylon Polymers 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- 230000035515 penetration Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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Abstract
The invention relates to a phase modifier rotor mounting method, because when mounting the rotor, the stator can hinder the rotor from hanging and pulling and moving, use arc slide plate, arc layer board, journal bracket, in order to when can't raise the non-leading-out terminal of rotor, use the inner wall of the chamber of the stator to support the rotor and form a fulcrum, the bearing bracket and rolling rod of the leading-out terminal of the rotor form another fulcrum, the axial level along the chamber of the stator draws the leading-out terminal of the rotor, make the rotor expose in the chamber of the stator. Specifically, the fulcrum between stator bore inner wall and the rotor is through arc slide and axle journal bracket, perhaps keeps the distance between rotor bottom and the stator bore inner wall to form through arc slide and arc layer board, and arc slide protects stator bore inner wall, and axle journal bracket or arc layer board protect the rotor bottom surface, so, can be convenient install the rotor into the stator bore intracavity.
Description
Technical Field
The invention relates to the technical field of phase modulator maintenance, in particular to a phase modulator rotor installation method.
Background
The phase modifier is a synchronous motor in a special operation state. When the reactive power regulator works, the magnitude of the reactive power generated by the reactive power regulator is adjusted by adjusting the phase angle difference between the voltage and the current of the reactive power regulator, and the magnitude of the voltage is adjusted by the reactive power regulator to an external power grid.
When the phase modifier is overhauled, the rotor needs to be extracted from the stator. The 300Mvar phase modifier is large in size, collision needs to be avoided when a rotor is drawn out, multiple persons need to be matched and large-scale hoisting equipment and large-scale tooling equipment need to be equipped, the efficiency is low, and the construction period is long. Further, when a tool such as a traveling crane is used, the stator interferes with a traveling crane point, and therefore, a rotor mounting method is required to be installed in a targeted manner.
Disclosure of Invention
The invention aims to provide a phase modifier rotor mounting method, which is used for mounting a rotor in a stator bore cavity.
The technical scheme of the invention is as follows:
a phase modifier rotor mounting method comprises the following steps:
laying an iron core protection plate on the surface of a stator iron core, fixedly laying an arc-shaped sliding plate in a cavity of a stator bore, and arranging a lubricant on the upper surface of the arc-shaped sliding plate;
a journal bracket is mounted on a bearing stop at a non-leading-out end of the rotor, the journal bracket is provided with an arc-shaped surface matched with the arc-shaped sliding plate, a traction lifting bar is mounted on the end surface of a gear of the rotor turning machine at the non-leading-out end of the rotor, and a first rotor bracket is mounted on an oil stop in the leading-out end of the rotor;
enabling the central line of a magnetic pole of the rotor to be in a vertical position, lifting the rotor by double ropes, enabling the journal bracket to fall on the arc-shaped sliding plate, keeping the axis of the rotor and the axis of the stator chamber to be arranged in a collinear manner, maintaining the state of lifting the rotor by the double ropes, sending the rotor into the stator chamber along the axis direction of the stator chamber, supporting the first rotor bracket when the lifting rope is 80-150 mm away from the end surface of the stator, and withdrawing the lifting rope;
the first rotor bracket is hoisted, the axis of the rotor and the axis of the stator bore cavity are kept to be arranged in a collinear manner, and the journal bracket is horizontally pulled along the axis direction of the stator bore cavity;
when the plate-shaped supporting plate can be arranged 80-120 mm away from the inner side of the rotor non-leading-out end retaining ring, the arc-shaped supporting plate is arranged between the rotor and the arc-shaped sliding plate, the hanging and pulling height of the first rotor bracket is reduced, and therefore when the journal bracket is horizontally pulled along the axial direction of the stator chamber, the arc-shaped supporting plate and the rotor synchronously advance;
when the journal bracket is about to be separated from the arc-shaped sliding plate, the suspension height of the first rotor bracket is continuously reduced, so that the weight of a non-leading-out end of a rotor is transferred to the arc-shaped supporting plate from the journal bracket, and the journal bracket is horizontally pulled along the axial direction of the stator chamber;
when the non-leading-out end of the rotor is exposed out of the stator chamber, the hoisting height of the first rotor bracket is increased, the arc-shaped supporting plate is taken out of the leading-out end of the rotor, a rolling rod is arranged at the bottom of a bearing seat of the leading-out end, the hoisting height of the first rotor bracket is reduced, the rolling rod supports the bearing seat of the leading-out end, and at the moment, the rotor is horizontal and a gap is formed between the rotor and a stator core;
hoisting the non-leading-out end of the rotor, dismantling the journal bracket, taking out the arc-shaped sliding plate and the iron core protection plate from the non-leading-out end of the rotor, and drawing the non-leading-out end of the rotor while hoisting the non-leading-out end of the rotor so as to enable the center of the rotor to coincide with the center of the stator;
supporting a non-leading-out terminal of the rotor, installing a non-leading-out terminal bearing block on a non-leading-out terminal bedplate, after a non-leading-out terminal bearing bush is arranged on the non-leading-out terminal bearing block, hoisting the non-leading-out terminal of the rotor, taking out the non-leading-out terminal support of the rotor, reducing the height of the non-leading-out terminal of the rotor, and placing a rotating shaft on the non-leading-out terminal bearing bush;
and (4) hoisting the outlet end of the rotor, taking out the rolling rod, and installing the outlet end bearing seat on the outlet end bedplate.
Preferably, a rubber protection plate is arranged between the journal bracket and the rotor non-leading-out end bearing block.
Preferably, the iron core protection plate is a rubber pad, one side of the rubber pad is a rough surface, the other side of the rubber pad is a smooth surface, and the smooth surface is attached to the surface of the stator iron core.
Preferably, the outer diameter of the roller is 30 mm.
Preferably, the phase modifier rotor mounting auxiliary tool comprises a fixing frame, a collinear positioner and a central deviation detector, the fixing frame is provided with a rotor through hole, the central deviation detector comprises a non-contact sensor module fixed on the fixing frame, the non-contact sensor module comprises at least two non-contact sensors, sensing lines of the at least two non-contact sensors are arranged on a detection surface and intersect at a reference point, the collinear positioner is provided with a stator bore cavity embedding side surface and a rotor through hole embedding side surface, the stator bore cavity embedding side surface is connected with the stator bore cavity in an embedding manner, when the rotor through hole embedding side surface is connected with the rotor through hole in an embedding manner, the reference point is arranged on a central line extension line of the stator bore cavity, when the detection surface is a detection plane, the detection plane is arranged on a plane vertical to the central line of the stator bore cavity, when the detection surface is a detection conical surface, the axis of the detection conical surface and the central line of the stator bore cavity are arranged in a collinear manner;
before the rotor is mounted in a penetrating manner, the stator bore embedding side face is connected with the stator bore embedding, the rotor through hole embedding side face is connected with the rotor through hole embedding, the stator and the fixed frame are kept to be relatively static in the axial direction of the stator bore embedding, and the collinear positioner is taken out;
when the rotor penetrates through the rotor through hole, the intersection point between the axis of the rotor and the detection surface is a point A, the center deviation detector is used for detecting the deviation displacement between the point A and the reference point, when the deviation displacement reaches a dangerous distance, the rotor is stopped to be inserted into the rotor through hole, the position of the rotor is adjusted along the reverse direction of the deviation displacement, after the deviation displacement is within a safe distance, the rotor is continuously inserted into the rotor through hole until the rotor is arranged in the cavity of the stator.
A phase modifier rotor mounting method comprises the following steps:
laying an iron core protection plate on the surface of a stator iron core, fixedly laying an arc-shaped sliding plate in a cavity of a stator bore, and arranging a lubricant on the upper surface of the arc-shaped sliding plate;
a journal bracket is mounted on a bearing stop at the non-leading-out end of the rotor, the journal bracket is provided with an arc-shaped surface used for being matched with the arc-shaped sliding plate, and a traction lifting bar is mounted on the end surface of a gear of the rotor turning machine at the non-leading-out end of the rotor;
enabling the central line of a magnetic pole of the rotor to be in a vertical position, hoisting the rotor by double ropes, enabling the journal bracket to be arranged above the arc-shaped sliding plate, arranging a rolling rod below a bearing seat at a wire outlet end, enabling the axis of the rolling rod to be perpendicular to the axis of a cavity of the stator, descending the rotor, supporting the journal bracket by the arc-shaped sliding plate, enabling the axis of the rotor and the axis of the cavity of the stator to be arranged in a collinear manner when the rolling rod supports the bearing seat at the wire outlet end, withdrawing the hoisting ropes, and horizontally drawing the journal bracket along the axis direction of the cavity of the stator;
when the plate-shaped supporting plate can be arranged 80-120 mm away from the inner side of the rotor non-leading-out end retaining ring, the height of the rotor leading-out end is increased, the arc-shaped supporting plate is arranged between the rotor and the arc-shaped sliding plate, the height of the rotor leading-out end is reduced, so that the rolling rod supports a leading-out end bearing seat, and the arc-shaped supporting plate supports the rotor and horizontally pulls the shaft neck bracket along the axial direction of the stator chamber;
when the non-outlet end of the rotor is exposed out of the cavity of the stator, the height of the outlet end of the rotor is increased, the arc-shaped supporting plate is taken out of the outlet end of the rotor, the height of the outlet end of the rotor is reduced, and the roller supports the bearing seat of the outlet end;
hoisting the non-leading-out end of the rotor, dismantling the journal bracket, taking out the arc-shaped sliding plate and the iron core protection plate from the non-leading-out end of the rotor, and drawing the non-leading-out end of the rotor while hoisting the non-leading-out end of the rotor so as to enable the center of the rotor to coincide with the center of the stator;
supporting a non-leading-out terminal of the rotor, installing a non-leading-out terminal bearing block on a non-leading-out terminal bedplate, after a non-leading-out terminal bearing bush is arranged on the non-leading-out terminal bearing block, hoisting the non-leading-out terminal of the rotor, taking out the non-leading-out terminal support of the rotor, reducing the height of the non-leading-out terminal of the rotor, and placing a rotating shaft on the non-leading-out terminal bearing bush;
and (4) hoisting the outlet end of the rotor, taking out the rolling rod, and installing the outlet end bearing seat on the outlet end bedplate.
Preferably, a rubber protection plate is arranged between the journal bracket and the rotor non-leading-out end bearing block.
Preferably, the iron core protection plate is a rubber pad, one side of the rubber pad is a rough surface, the other side of the rubber pad is a smooth surface, and the smooth surface is attached to the surface of the stator iron core.
Preferably, the outer diameter of the roller is 30 mm.
Preferably, the phase modifier rotor mounting auxiliary tool comprises a fixing frame, a collinear positioner and a central deviation detector, the fixing frame is provided with a rotor through hole, the central deviation detector comprises a non-contact sensor module fixed on the fixing frame, the non-contact sensor module comprises at least two non-contact sensors, sensing lines of the at least two non-contact sensors are arranged on a detection surface and intersect at a reference point, the collinear positioner is provided with a stator bore cavity embedding side surface and a rotor through hole embedding side surface, the stator bore cavity embedding side surface is connected with the stator bore cavity in an embedding manner, when the rotor through hole embedding side surface is connected with the rotor through hole in an embedding manner, the reference point is arranged on a central line extension line of the stator bore cavity, when the detection surface is a detection plane, the detection plane is arranged on a plane vertical to the central line of the stator bore cavity, when the detection surface is a detection conical surface, the axis of the detection conical surface and the central line of the stator bore cavity are arranged in a collinear manner;
before the rotor is mounted in a penetrating manner, the stator bore embedding side face is connected with the stator bore embedding, the rotor through hole embedding side face is connected with the rotor through hole embedding, the stator and the fixed frame are kept to be relatively static in the axial direction of the stator bore embedding, and the collinear positioner is taken out;
when the rotor penetrates through the rotor through hole, the intersection point between the axis of the rotor and the detection surface is a point A, the center deviation detector is used for detecting the deviation displacement between the point A and the reference point, when the deviation displacement reaches a dangerous distance, the rotor is stopped to be inserted into the rotor through hole, the position of the rotor is adjusted along the reverse direction of the deviation displacement, after the deviation displacement is within a safe distance, the rotor is continuously inserted into the rotor through hole until the rotor is arranged in the cavity of the stator.
The side wall of the rotor through hole can be open or closed, the aperture of the rotor through hole can meet the requirement that the A point coincides with the datum point, and when the rotor is pushed along the central line of the stator bore cavity, the rotor does not collide with the stator. The stator bore embedding side face is not necessarily connected with the whole embedding of the inner wall of the stator bore, the rotor perforated embedding side face is not necessarily connected with the whole embedding of the inner wall of the rotor perforated, as long as the reference point can be arranged on the extension line of the central line of the stator bore, when the detection face is a detection plane, the detection plane is arranged on a plane which passes through the reference point and is perpendicular to the central line of the stator bore, when the detection face is a detection conical face, the axis of the detection conical face and the central line of the stator bore are arranged in a collinear mode, and the reference point is arranged at the conical tip of the detection conical face.
The invention has the beneficial effects that:
1. because the stator can hinder the lifting movement of the rotor when the rotor is installed, the arc-shaped sliding plate, the arc-shaped supporting plate and the journal bracket are used, when the non-leading-out end of the rotor cannot be lifted, the inner wall of the cavity of the stator is used for supporting the rotor to form a fulcrum, the bearing seat and the rolling rod of the leading-out end of the rotor form another fulcrum, and the leading-out end of the rotor is horizontally pulled along the axial direction of the cavity of the stator, so that the rotor is exposed out of the cavity of the stator. Specifically, the fulcrum between stator bore inner wall and the rotor is through arc slide and axle journal bracket, perhaps keeps the distance between rotor bottom and the stator bore inner wall to form through arc slide and arc layer board, and arc slide protects stator bore inner wall, and axle journal bracket or arc layer board protect the rotor bottom surface, so, can be convenient install the rotor into the stator bore intracavity.
Drawings
Fig. 1 is a perspective view of a matched state of an arc-shaped sliding plate and an arc-shaped supporting plate.
Fig. 2 is a perspective view of a journal bracket.
Fig. 3 is a perspective view of a rotor bracket.
Fig. 4 shows the position of the stator bore support shaft diameter bracket in step 9.
Fig. 5 shows the relative positions of the arc-shaped blade and the rotor in step 12.
Fig. 6 is a schematic view of the step 13 of mounting the outlet end bearing seat on the rotor.
Fig. 7 is a schematic view of the preparation for removing the arc-shaped pallet in step 15.
Fig. 8 is a schematic diagram of the arc-shaped sliding plate and the stator core protection plate to be taken out in step 16.
Fig. 9 is a schematic view of the non-outlet end bearing block ready for installation in step 17.
Fig. 10 is a schematic diagram of the step 18 of installing the non-outlet end bearing shell.
Fig. 11 is a schematic structural diagram of a fixing frame and a non-contact sensor module of a phase modulator rotor penetration auxiliary tool.
Fig. 12 is a sectional view a-a of fig. 11.
FIG. 13 is a cross-sectional view of a collinear alignment fixture for threading a rotor of a phase modulator into an auxiliary fixture.
Fig. 14 is a reference diagram of a phase modifier rotor mounting auxiliary tool in a use state.
Fig. 15 is a second reference view of a phase modulation machine rotor mounting auxiliary tool in use.
The reference numbers indicate, 1-fixed frame, 11-cylindrical hole, 12-flaring taper hole, 2-non-contact distance sensor, 3-base, 4-collinear positioner, 5-stator, 6-rotor, 61-leading-out end bearing seat, 62-cushion block, 71-arc slide plate, 72-arc supporting plate, 8-journal bracket, 81-arc bottom wall, 82-first rotor fixing hole, 83-hanging pull hole, 9-rotor bracket, 91-base, 92-second rotor fixing hole.
Detailed Description
The present invention is described below in terms of embodiments in conjunction with the accompanying drawings to assist those skilled in the art in understanding and implementing the present invention. Unless otherwise indicated, the following embodiments and technical terms therein should not be understood to depart from the background of the technical knowledge in the technical field.
Example 1: a phase modifier rotor mounting method comprises the following steps:
1. prerequisites for threading rotor
a) And completing the special inspection of the rotor, including an electrical test, a water pressure and water flow test and the like.
b) And finishing the special inspection of the stator, including the special inspection of the iron core, the inner part and the end part of the stator chamber, a hydraulic test and the like.
c) And disassembling the parts, checking and cleaning.
d) The construction scheme and the safety measures are compiled and approved by the examination.
e) Safety, quality and technical commitments have been made to all constructors.
2. Other conditions of rotor-through construction
a) The seat bearing is qualified, and the insulation of the bearing seat to the ground meets the requirement.
b) And the tightness test and the electrical test of the stator and the rotor are qualified.
c) And finishing the cleanness check of the interior of the stator bore cavity.
d) Safety protection measures are implemented in place.
3. Nylon ropes are bound on two sides of the iron core protection plate (rubber gasket) and then are tiled at the bottom of the stator iron core. Note that the protection plate is rough-faced up and smooth-faced down (iron core).
4. Paving an arc-shaped sliding plate and smearing a lubricant. Lubricating grease is evenly paintd at arc slide upper surface, places the arc slide on the iron core protection shield and use the high strength nylon rope with arc slide four corners be fixed in both ends bearing frame bottom plate bolt on, the nylon rope must not contact the tooth district of iron core to in the damage iron core, also can not fix the nylon rope on insulating leading water pipe, prevent that lubricating grease from polluting the stator. And after the arc-shaped sliding plate is installed, the exposed parts of the end part of the stator coil and the stator core are covered by rubber pads. The shape of the arcuate sled 71 can be seen in fig. 1, which is a sliding fit with the arcuate blade 72 shown.
5. And a pulling lifting bar is arranged at the non-leading-out end of the rotor. And installing a traction lifting bar on the end face of the rotor turning gear.
6. And (4) installing a journal bracket. The shaft neck bracket is arranged on a bearing stop at the non-leading-out end of the rotor, and the middle of the shaft neck bracket and the shaft is protected by a rubber plate. The journal bracket shape can be seen in fig. 2.
7. And (5) mounting a rotor bracket. The rotor bracket is arranged on an oil baffle in the rotor wire outlet end, and the shaft neck of the rotor bracket is protected by a rubber plate. The rotor carrier shape can be seen in fig. 3.
8. And (5) hoisting the rotor. And a proper amount of hard board or rubber strip is wrapped at the position lifted on the rotor body for protection. Note that during the hoisting process of the rotor, the center line of the magnetic pole of the rotor should be in a vertical position.
9. Referring to fig. 4, the rotor is lifted with the journal bracket into the stator bore and supported on the arcuate slide of the core. The step-shaped positions of two ends of the stator core are about 200mm, the rotor gravity cannot be borne, when the rotor is worn, the rotor axis, the stator bore cavity axis and the axial traction direction must always keep a straight line, the rotor is prevented from rolling by paying attention at any time in the wearing process, the gap between the stator and the rotor is paid attention at any time, and collision is strictly prevented.
10. When the rotor lifting rope is 100mm away from the end face of the stator, the rotor bracket is supported by a 50t jack at the wire outlet end, and the travelling crane lifting rope is put down.
11. And changing the position of the lifting rope, and lifting the rotor at the position of the rotor bracket at the wire outlet end. And selecting a proper position at the non-outgoing line end as an anchoring point for penetrating the rotor, and using the chain block to enable the rotor to slide towards the non-outgoing line end.
12. When the space of the wire outlet end is enough, the wire outlet end of the rotor is slightly lifted, the arc-shaped supporting plate 72 is plugged below the rotor body until the arc-shaped supporting plate 72 is about 100mm away from the inner side of the protecting ring of the non-wire outlet end (before the arc-shaped supporting plate 72 is plugged, nylon ropes are tied at two sides of the arc-shaped supporting plate 72, enough length is reserved so that the arc-shaped supporting plate 72 can be finally pulled out), the wire outlet end lifting rope is descended, the wire outlet end of the rotor is slightly lower, the rotor is supported by the journal bracket and the arc-shaped supporting plate 72 together, the non-wire outlet end continues to be pulled to advance, whether the arc-shaped supporting plate 72 advances along with the rotor or not is observed, and the position of the arc-shaped supporting plate 72 is always in the center of the bottom. The arc shaped blade 72 is mounted as shown in fig. 5.
13. The bearing seat of the wire outlet end slides into the position of the shaft neck from the end part of the wire outlet end of the rotor, and the center of the bearing bush sleeve is strictly controlled to be consistent with the center of the rotor in the process, so that the bearing bush sleeve and the rotor are prevented from being scraped. The bearing seat of the outlet end is arranged on the journal of the outlet end, the journal is wrapped by a layer of white cloth and protected by a rubber plate, the oil baffle of the bearing seat needs to be removed, the mounting position of the bearing seat where the bearing bush and the journal need to be tightly compacted is the outermost side of the bottom plate of the collecting ring, and at the moment, the rotor bracket 9 is fixed at the edge of the air outlet of the collecting ring, as shown in fig. 6.
14. When the journal bracket is about to be separated from the end of the arc-shaped sliding plate of the non-outlet end, the lifting rope is descended to enable the outlet end of the rotor to be slightly lower. At this time, the weight of the rotor is transferred to the arc-shaped supporting plate 72 by the journal bracket and continues to be pulled by the non-leading-out end to advance, and the weight of the rotor is carried by the arc-shaped supporting plate 72.
15. The rotor is moved continuously after the outer side of the bearing of the outlet end is hoisted by the travelling crane, when the rotor of the non-outlet end extends out of the base for a certain distance, the rotor of the outlet end is hoisted by the travelling crane, the rotor bracket 9 is installed at the non-outlet end of the rotor and supported, and the arc-shaped supporting plate 72 is pulled out of the outlet end by a nylon rope, as shown in fig. 7.
16. After the arc-shaped supporting plate 72 is pulled out, a 30mm rolling rod is added to the bottom of the bearing seat of the outgoing line end, the bearing of the outgoing line end is located on the rolling rod (the rotor is horizontal and cannot collide with a stator core), a lifting point is changed to the non-outgoing line end of the rotor, a journal bracket 8 of the non-outgoing line end is removed, finally the rotor of the non-outgoing line end is lifted by a travelling crane without touching the core, the arc-shaped sliding plate and the core protecting plate are pulled out from the non-outgoing line end by a nylon rope, and the arc-shaped sliding plate and the core protecting plate of the stator are pulled out as shown in fig. 8.
17. And continuously moving the rotor to a position where the magnetic centers of the rotor and the stator are overlapped. The rotor non-outlet end is supported by the rotor bracket 9, the bottom of the non-outlet end bearing seat and the bedplate are cleaned and inspected, and the non-outlet end bearing seat (bearing bush and oil block can not be installed) is installed on the bedplate by using a travelling crane, as shown in fig. 9.
18. And (3) installing a bearing seat and a bearing bush at the non-outgoing line end, and placing the rotating shaft on the bearing bush at the non-outgoing line end, as shown in figure 10.
19. And after the outlet end bearing block is installed in place, the upper half of the outlet end bearing block is detached, the rubber plate wrapped on the journal is taken out, and the outlet end journal falls onto the bearing bush after the journal and the bearing bush are cleaned.
20. Checking the tool for penetrating the rotor, storing and returning in a classified mode, and finishing the work of penetrating the rotor by the phase modifier.
Example 2: a phase modifier rotor mounting method comprises the following steps:
laying an iron core protection plate on the surface of a stator iron core, fixedly laying an arc-shaped sliding plate in a cavity of a stator bore, and arranging a lubricant on the upper surface of the arc-shaped sliding plate;
a journal bracket is mounted on a bearing stop at the non-leading-out end of the rotor, the journal bracket is provided with an arc-shaped surface used for being matched with the arc-shaped sliding plate, and a traction lifting bar is mounted on the end surface of a gear of the rotor turning machine at the non-leading-out end of the rotor;
enabling the central line of a magnetic pole of the rotor to be in a vertical position, hoisting the rotor by double ropes, enabling the journal bracket to be arranged above the arc-shaped sliding plate, arranging a rolling rod below a bearing seat at a wire outlet end, enabling the axis of the rolling rod to be perpendicular to the axis of a cavity of the stator, descending the rotor, supporting the journal bracket by the arc-shaped sliding plate, enabling the axis of the rotor and the axis of the cavity of the stator to be arranged in a collinear manner when the rolling rod supports the bearing seat at the wire outlet end, withdrawing the hoisting ropes, and horizontally drawing the journal bracket along the axis direction of the cavity of the stator;
when the plate-shaped supporting plate can be arranged 80-120 mm away from the inner side of the rotor non-leading-out end retaining ring, the height of a rotor leading-out end is increased, the arc-shaped supporting plate is arranged between the rotor and the arc-shaped sliding plate, the height of the rotor leading-out end is reduced, so that the rolling rod supports a leading-out end bearing seat, and the arc-shaped supporting plate supports the rotor and horizontally pulls the journal bracket along the axial direction of the stator chamber;
when the non-outlet end of the rotor is exposed out of the cavity of the stator, the height of the outlet end of the rotor is increased, the arc-shaped supporting plate is taken out of the outlet end of the rotor, the height of the outlet end of the rotor is reduced, and the roller supports the bearing seat of the outlet end;
hoisting the non-leading-out end of the rotor, dismantling the journal bracket, taking out the arc-shaped sliding plate and the iron core protection plate from the non-leading-out end of the rotor, and drawing the non-leading-out end of the rotor while hoisting the non-leading-out end of the rotor so as to enable the center of the rotor to coincide with the center of the stator;
supporting a non-leading-out terminal of the rotor, installing a non-leading-out terminal bearing block on a non-leading-out terminal bedplate, after a non-leading-out terminal bearing bush is arranged on the non-leading-out terminal bearing block, hoisting the non-leading-out terminal of the rotor, taking out the non-leading-out terminal support of the rotor, reducing the height of the non-leading-out terminal of the rotor, and placing a rotating shaft on the non-leading-out terminal bearing bush;
and (4) hoisting the outlet end of the rotor, taking out the rolling rod, and installing the outlet end bearing seat on the outlet end bedplate.
Preferably, a rubber protection plate is arranged between the journal bracket and the rotor non-leading-out end bearing block.
Preferably, the iron core protection plate is a rubber pad, one side of the rubber pad is a rough surface, the other side of the rubber pad is a smooth surface, and the smooth surface is attached to the surface of the stator iron core.
Preferably, the outer diameter of the roller is 30 mm.
Example 3: a phase modifier rotor wears to adorn auxiliary fixtures, refers to fig. 1-3, includes mount 1, base 3, collineation locator 4 and central skew detector.
The fixing frame 1 is provided with a rotor through hole. In the embodiment, the rotor through hole is formed by a cylindrical hole 11 and a flaring taper hole 12 which are coaxially arranged, the cylindrical hole 11 and the flaring taper hole 12 are in smooth transition, and the flaring taper hole 12 is arranged at the rotor inserting side of the rotor through hole. The inner diameter of the cylindrical hole 11 is equal to the inner diameter of the chamber of the stator 5, so that the collinear positioner 4 can be simplified into a cylinder or a round tube, and the manufacturing difficulty is low.
The material principle of the fixing frame 1 can not damage the rotor, and certain toughness and hardness are required to ensure that the fixing frame 1 is not damaged. In this embodiment, the fixing frame main body is an aluminum alloy shell, and an elastic protection layer is fixedly disposed on an inner wall of the aluminum alloy shell corresponding to the rotor through hole 11. In the embodiment, the elastic protection layer is made of silicon rubber materials, and the silicon rubber is soft in texture, impact-resistant and good in toughness. The elastic protection layer is set to be about 10mm, and after the elastic protection layer is set, the inner diameter of the cylindrical hole 11 is equal to the inner diameter of the chamber of the stator 5.
In this embodiment, the collinear positioner 4 is a circular tube.
In this embodiment, the center shift detector includes a non-contact sensor module fixed to the fixing frame 1. In this embodiment, the non-contact sensor module has 4 non-contact distance sensors 2, and sensing lines of the 4 non-contact distance sensors are disposed on the detection plane and intersect at the reference point. In the present embodiment, 4 noncontact distance sensors are disposed at the four corners of a square, so the reference point is disposed at the center of the square. Referring to fig. 1-2, the non-contact distance sensors 2 are installed at positions of the fixed frame 1 corresponding to the flaring taper holes 12 and at 3 o 'clock, 6 o' clock, 9 o 'clock and 12 o' clock positions of the flaring taper holes 12, respectively. When the non-contact distance sensor 2 is arranged at the position of the fixed frame 1 corresponding to the flaring taper hole 12 and the inner diameter of the cylindrical hole 11 is close to the inner diameter of the chamber of the stator 5, the diameter of the flaring taper hole is larger than that of the cylindrical hole, so that the gap between the rotor and the inner wall of the flaring taper hole at the detection plane is larger than the gap between the rotor and the chamber of the stator after the rotor moves to the chamber of the stator, the position of the rotor can be conveniently adjusted before the rotor collides with the inner wall of the cylindrical hole 11 and the inner wall of the chamber of the stator, and the damage is reduced.
In this embodiment, the taper angle of the flaring taper hole 12 is 60 °.
In other embodiments, the non-contact sensor module comprises at least three non-contact distance sensors, the three non-contact distance sensors are arranged at three corners of a triangle, and sensing lines emitted by the three non-contact distance sensors are arranged on the detection surface and intersect at the reference point.
In some specific embodiments, the non-contact sensor module comprises two non-contact distance sensors, the sensing lines of the two non-contact distance sensors are both arranged on a horizontal plane passing through the reference point, and the sensing lines of the two non-contact distance sensors are both arranged on the detection plane and intersect at the reference point. In these particular embodiments, it is also possible that, when the rotor is inserted into the stator bore, one end of the rotor is slidably connected to the stator bore via a first support member and the other end of the rotor is slidably connected to the ground via a second support member, which indirectly ensures that the axis of the rotor is at a distance from the stator bore in the height direction.
In this embodiment, the base 3 is connected to the fixing frame 1 through a lifting device having a leveling function. In this embodiment, the lifting device with the leveling function is a triangular leveling component.
The use method of the phase modifier rotor penetrating auxiliary tool comprises the following steps:
the stator chamber embedding side face is connected with the stator chamber in an embedding manner, the rotor through hole embedding side face is connected with the rotor through hole in an embedding manner, the stator 5 and the fixing frame 2 are fixed, or the stator 5 and the fixing frame 2 are both fixed on the ground so as to keep the stator 5 and the fixing frame 2 relatively static, and the collinear positioner 4 is taken out;
and hoisting the rotor 6, inserting the non-outgoing line end of the rotor 6 into the rotor through hole, and when the rotor 6 passes through the rotor through hole, taking the intersection point between the axis of the rotor 6 and the detection surface as a point A, and detecting the deviation displacement between the point A and the reference point by using a center deviation detector. And when the deviation displacement reaches a dangerous distance, stopping inserting the rotor 6 into the rotor through hole, adjusting the position of the rotor 6 along the reverse direction of the deviation displacement, and continuing inserting the rotor 6 into the rotor through hole until the rotor 6 is arranged in the bore cavity of the stator 5 after the deviation displacement is within a safe distance.
The invention is described in detail above with reference to the figures and examples. It should be understood that in practice the description of all possible embodiments is not exhaustive and that the inventive concepts are described herein as far as possible by way of illustration. Without departing from the inventive concept of the present invention and without any creative work, a person skilled in the art should, in all of the embodiments, make optional combinations of technical features and experimental changes of specific parameters, or make a routine replacement of the disclosed technical means by using the prior art in the technical field to form specific embodiments, which belong to the content implicitly disclosed by the present invention.
Claims (10)
1. A phase modifier rotor mounting method is characterized by comprising the following steps:
laying an iron core protection plate on the surface of a stator iron core, fixedly laying an arc-shaped sliding plate in a cavity of a stator bore, and arranging a lubricant on the upper surface of the arc-shaped sliding plate;
a journal bracket is mounted on a bearing stop of a non-leading-out end of the rotor, the journal bracket is provided with an arc-shaped surface used for being matched with the arc-shaped sliding plate, a traction lifting bar is mounted on the end surface of a gear of the rotor turning machine at the non-leading-out end of the rotor, and a first rotor bracket is mounted on an oil stop in the leading-out end of the rotor;
enabling the central line of a magnetic pole of the rotor to be in a vertical position, lifting the rotor by double ropes, enabling the journal bracket to fall on the arc-shaped sliding plate, keeping the axis of the rotor and the axis of the stator chamber to be arranged in a collinear manner, maintaining the state of lifting the rotor by the double ropes, sending the rotor into the stator chamber along the axis direction of the stator chamber, supporting the first rotor bracket when the lifting rope is 80-150 mm away from the end surface of the stator, and withdrawing the lifting rope;
the first rotor bracket is hoisted, the axis of the rotor and the axis of the stator bore cavity are kept to be arranged in a collinear manner, and the journal bracket is horizontally pulled along the axis direction of the stator bore cavity;
when the plate-shaped supporting plate can be arranged 80-120 mm away from the inner side of the rotor non-leading-out end retaining ring, the arc-shaped supporting plate is arranged between the rotor and the arc-shaped sliding plate, the hanging and pulling height of the first rotor bracket is reduced, and therefore when the journal bracket is horizontally pulled along the axial direction of the stator chamber, the arc-shaped supporting plate and the rotor synchronously advance;
when the journal bracket is about to be separated from the arc-shaped sliding plate, the suspension height of the first rotor bracket is continuously reduced, so that the weight of a non-leading-out end of a rotor is transferred to the arc-shaped supporting plate from the journal bracket, and the journal bracket is horizontally pulled along the axial direction of the stator chamber;
when the non-leading-out end of the rotor is exposed out of the stator chamber, the hoisting height of the first rotor bracket is increased, the arc-shaped supporting plate is taken out of the leading-out end of the rotor, a rolling rod is arranged at the bottom of a bearing seat of the leading-out end, the hoisting height of the first rotor bracket is reduced, the rolling rod supports the bearing seat of the leading-out end, and at the moment, the rotor is horizontal and a gap is formed between the rotor and a stator core;
hoisting the non-leading-out end of the rotor, dismantling the journal bracket, taking out the arc-shaped sliding plate and the iron core protection plate from the non-leading-out end of the rotor, and drawing the non-leading-out end of the rotor while hoisting the non-leading-out end of the rotor so as to enable the center of the rotor to coincide with the center of the stator;
supporting a non-outgoing line end of the rotor, installing a non-outgoing line end bearing block on a non-outgoing line end bedplate, after a non-outgoing line end bearing bush is arranged on the non-outgoing line end bearing block, hoisting and pulling the non-outgoing line end of the rotor, taking out the non-outgoing line end support of the rotor, reducing the height of the non-outgoing line end of the rotor, and placing a rotating shaft on the non-outgoing line end bearing bush;
and (4) hoisting the outlet end of the rotor, taking out the rolling rod, and installing the outlet end bearing pedestal on the outlet end platen.
2. A phase modifier rotor mounting method as claimed in claim 1, wherein a rubber protector plate is provided between said journal bracket and the rotor non-outgoing end bearing stop.
3. The phase modulator rotor mounting method according to claim 1, wherein the core protection plate is a rubber pad having a rough surface on one side and a smooth surface on the other side, and the smooth surface is disposed to be adhered to the surface of the stator core.
4. A phase modifier rotor mounting method as claimed in claim 1, wherein said roller has an outer diameter of 30 mm.
5. The phase modifier rotor mounting method according to claim 1, wherein the phase modifier rotor mounting auxiliary tool includes a mounting bracket, a collinear positioner and a center deviation detector, the mounting bracket is provided with a rotor through hole, the center deviation detector includes a non-contact sensor module fixed on the mounting bracket, the non-contact sensor module includes at least two non-contact sensors, sensing lines of the at least two non-contact sensors are arranged on a detection surface and intersect at a reference point, the collinear positioner is provided with a stator bore engaging side surface and a rotor through hole engaging side surface, the stator bore engaging side surface is engaged with a stator bore, when the rotor through hole engaging side surface is engaged with the rotor through hole, the reference point is arranged on a center line extension line of the stator bore, when the detection surface is a detection plane, the detection plane is arranged on a plane perpendicular to the center line of the stator bore cavity, and when the detection plane is a detection conical surface, the axis of the detection conical surface and the center line of the stator bore cavity are arranged in a collinear manner;
before the rotor is mounted in a penetrating manner, the stator bore embedding side face is connected with the stator bore embedding, the rotor through hole embedding side face is connected with the rotor through hole embedding, the stator and the fixed frame are kept to be relatively static in the axial direction of the stator bore embedding, and the collinear positioner is taken out;
when the rotor penetrates through the rotor through hole, the intersection point between the axis of the rotor and the detection surface is a point A, the center deviation detector is used for detecting the deviation displacement between the point A and the reference point, when the deviation displacement reaches a dangerous distance, the rotor is stopped to be inserted into the rotor through hole, the position of the rotor is adjusted along the reverse direction of the deviation displacement, after the deviation displacement is within a safe distance, the rotor is continuously inserted into the rotor through hole until the rotor is arranged in the cavity of the stator.
6. A phase modifier rotor mounting method is characterized by comprising the following steps:
laying an iron core protection plate on the surface of a stator iron core, fixedly laying an arc-shaped sliding plate in a cavity of a stator bore, and arranging a lubricant on the upper surface of the arc-shaped sliding plate;
a journal bracket is mounted on a bearing stop at the non-leading-out end of the rotor, the journal bracket is provided with an arc-shaped surface used for being matched with the arc-shaped sliding plate, and a traction lifting bar is mounted on the end surface of a gear of the rotor turning machine at the non-leading-out end of the rotor;
enabling the central line of a magnetic pole of the rotor to be in a vertical position, hoisting the rotor by double ropes, enabling the journal bracket to be arranged above the arc-shaped sliding plate, arranging a rolling rod below a bearing seat at a wire outlet end, enabling the axis of the rolling rod to be perpendicular to the axis of a cavity of the stator, descending the rotor, supporting the journal bracket by the arc-shaped sliding plate, enabling the axis of the rotor and the axis of the cavity of the stator to be arranged in a collinear manner when the rolling rod supports the bearing seat at the wire outlet end, withdrawing the hoisting ropes, and horizontally drawing the journal bracket along the axis direction of the cavity of the stator;
when the plate-shaped supporting plate can be arranged 80-120 mm away from the inner side of the rotor non-leading-out end retaining ring, the height of a rotor leading-out end is increased, the arc-shaped supporting plate is arranged between the rotor and the arc-shaped sliding plate, the height of the rotor leading-out end is reduced, so that the rolling rod supports a leading-out end bearing seat, and the arc-shaped supporting plate supports the rotor and horizontally pulls the journal bracket along the axial direction of the stator chamber;
when the non-outlet end of the rotor is exposed out of the cavity of the stator, the height of the outlet end of the rotor is increased, the arc-shaped supporting plate is taken out of the outlet end of the rotor, the height of the outlet end of the rotor is reduced, and the roller supports the bearing seat of the outlet end;
hoisting the non-leading-out end of the rotor, dismantling the journal bracket, taking out the arc-shaped sliding plate and the iron core protection plate from the non-leading-out end of the rotor, and drawing the non-leading-out end of the rotor while hoisting the non-leading-out end of the rotor so as to enable the center of the rotor to coincide with the center of the stator;
supporting a non-leading-out terminal of the rotor, installing a non-leading-out terminal bearing block on a non-leading-out terminal bedplate, after a non-leading-out terminal bearing bush is arranged on the non-leading-out terminal bearing block, hoisting the non-leading-out terminal of the rotor, taking out the non-leading-out terminal support of the rotor, reducing the height of the non-leading-out terminal of the rotor, and placing a rotating shaft on the non-leading-out terminal bearing bush;
and (4) hoisting the outlet end of the rotor, taking out the rolling rod, and installing the outlet end bearing seat on the outlet end bedplate.
7. The phase modulation rotor mounting method according to claim 6, wherein a rubber protection plate is provided between said journal bracket and a rotor non-outgoing end bearing stop.
8. The phase modulator rotor mounting method according to claim 6, wherein the core protection plate is a rubber pad, one side of the rubber pad is a rough surface, and the other side of the rubber pad is a smooth surface, and the smooth surface is arranged to be attached to the surface of the stator core.
9. A phase modifier rotor mounting method according to claim 6, wherein said roller has an outer diameter of 30 mm.
10. The phase modifier rotor mounting method according to claim 6, wherein the phase modifier rotor mounting auxiliary tool includes a mounting bracket, a collinear positioner and a center deviation detector, the mounting bracket is provided with a rotor through hole, the center deviation detector includes a non-contact sensor module fixed on the mounting bracket, the non-contact sensor module includes at least two non-contact sensors, sensing lines of the at least two non-contact sensors are arranged on a detection surface and intersect at a reference point, the collinear positioner is provided with a stator bore engaging side surface and a rotor through hole engaging side surface, the stator bore engaging side surface is engaged with a stator bore, when the rotor through hole engaging side surface is engaged with the rotor through hole, the reference point is arranged on a center line extension line of the stator bore, when the detection surface is a detection plane, the detection plane is arranged on a plane perpendicular to the center line of the stator bore cavity, and when the detection plane is a detection conical surface, the axis of the detection conical surface and the center line of the stator bore cavity are arranged in a collinear manner;
before the rotor is mounted in a penetrating manner, the stator bore embedding side face is connected with the stator bore embedding, the rotor through hole embedding side face is connected with the rotor through hole embedding, the stator and the fixed frame are kept to be relatively static in the axial direction of the stator bore embedding, and the collinear positioner is taken out;
when the rotor penetrates through the rotor through hole, the intersection point between the axis of the rotor and the detection surface is a point A, the center deviation detector is used for detecting the deviation displacement between the point A and the reference point, when the deviation displacement reaches a dangerous distance, the rotor is stopped to be inserted into the rotor through hole, the position of the rotor is adjusted along the reverse direction of the deviation displacement, after the deviation displacement is within a safe distance, the rotor is continuously inserted into the rotor through hole until the rotor is arranged in the cavity of the stator.
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| CN202111602462.7A CN114499070B (en) | 2021-12-24 | 2021-12-24 | Mounting method of camera rotor |
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| CN202111602462.7A CN114499070B (en) | 2021-12-24 | 2021-12-24 | Mounting method of camera rotor |
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