CN112919300B - Large-scale generator motor rotor magnetic pole lifts by crane instrument of standing up - Google Patents
Large-scale generator motor rotor magnetic pole lifts by crane instrument of standing up Download PDFInfo
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- CN112919300B CN112919300B CN202110143376.8A CN202110143376A CN112919300B CN 112919300 B CN112919300 B CN 112919300B CN 202110143376 A CN202110143376 A CN 202110143376A CN 112919300 B CN112919300 B CN 112919300B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- Mechanical Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a large-scale generator motor rotor magnetic pole hoisting and turning-over tool, which comprises a flat hoisting tool and a turning-over tool, wherein the flat hoisting tool comprises two flat hoisting plates which are connected through a connecting rod and have the same structure, two ends of the bottom of each flat hoisting plate are provided with L-shaped limiting blocks bent inwards, an inverted T-shaped clamping block is arranged between the two limiting blocks, and a T-shaped groove for clamping a T-shaped strip of a rotor magnetic pole is formed between the clamping block and the limiting blocks; the instrument of standing up includes the reinforcement frame, the upper end top of reinforcement frame be equipped with the first fixed strip of the T tail groove joint of rotor magnetic pole, the lower extreme of reinforcement frame is equipped with the frame that stands up of U type, stand up the frame by the upper end portion that connects gradually, arc portion and lower tip constitute, the upper end position is in the top of reinforcement frame, arc portion is located the outside of reinforcement frame, the lower tip is located the below of reinforcement frame, the bottom of upper end portion is equipped with the second fixed strip of the T tail inslot of embedding rotor magnetic pole. The invention has the characteristics of high safety factor, high working efficiency, good stability and effective protection of the magnetic pole of the rotor.
Description
Technical Field
The invention relates to a magnetic pole hoisting and turning tool, in particular to a magnetic pole hoisting and turning tool for a rotor of a large generator motor.
Background
The rotor is one of the important components of the hydraulic generator of the hydropower station, the magnetic poles are the important components of the rotor, the magnetic circuit and certain rotational inertia are formed, and the rotor is high in technical content and high in price. The rotor of the large and medium-sized generator needs to be assembled on the site, and the horizontal magnetic poles need to be adjusted vertically in advance when the rotor magnetic poles are hoisted, and then the rotor magnetic poles can be inserted into the rotor magnetic yoke. At present, in the hoisting process of rotor magnetic poles of most power stations, a horizontal hoisting tool is needed to transfer the rotor magnetic poles to a turning-over tool, and then the turning-over tool is used to turn over the rotor magnetic poles to be vertical for hoisting. In the flat lifting tool and the turning-over tool in the prior art, the fixity of the rotor magnetic pole is poor, the rotor magnetic pole is tightly bound only by the soft hanging strip, the safety factor is low, the magnetic pole is inclined and deviated on the tool in the flat lifting or turning-over process frequently, so that the accurate assembly of the rotor magnetic pole is influenced, the working efficiency is reduced, and even the rotor magnetic pole falls off from the tool, the rotor magnetic pole is broken, the practicability is poor, and the safety factor is low; and the rotor magnetic pole is not high enough in stability in the process of turning over, and the rotor magnetic pole is not well protected and is easy to damage.
Therefore, the existing rotor magnetic pole hoisting and turning tool has the problems of low safety coefficient, low working efficiency, poor stability and easy damage to the rotor magnetic pole.
Disclosure of Invention
The invention aims to provide a tool for lifting and turning over a rotor magnetic pole of a large generator motor. The invention has the characteristics of high safety coefficient, high working efficiency, good stability and effective protection of the magnetic poles of the rotor.
The technical scheme of the invention is as follows: the tool for lifting and turning over the rotor magnetic pole of the large-scale generator motor comprises a flat lifting tool and a turning-over tool, wherein the flat lifting tool comprises two flat lifting plates which are connected through a connecting rod and have the same structure, L-shaped limiting blocks which are bent inwards are arranged at two ends of the bottom of each flat lifting plate, an inverted T-shaped clamping block is arranged between the two limiting blocks, and a T-shaped groove for clamping a T-shaped strip of the rotor magnetic pole is formed between the clamping block and the limiting blocks;
the turnover tool comprises a reinforcing frame, a first fixing strip clamped with a T-shaped tail groove of the rotor magnetic pole is arranged at the top of the upper end of the reinforcing frame, a U-shaped turnover frame is arranged at the lower end of the reinforcing frame, the turnover frame is composed of an upper end portion, an arc portion and a lower end portion which are connected in sequence, the upper end portion is located above the reinforcing frame, the arc portion is located outside the reinforcing frame, the lower end portion is located below the reinforcing frame, and a second fixing strip embedded into the T-shaped tail groove of the rotor magnetic pole is arranged at the bottom of the upper end portion.
In the rotor magnetic pole hoisting and turning tool for the large generator motor, the flat hanging plate is triangular, and the top of the flat hanging plate is provided with the first hoisting hole.
In the rotor magnetic pole hoisting and turning tool for the large-scale generator motor, the limiting block is provided with the through hole, and the through hole is internally provided with the transverse fastening bolt which is used for tightly jacking the rotor magnetic pole.
In the tool for lifting and turning over the magnetic pole of the rotor of the large generator motor, the outer side of the upper end of the reinforcing frame is provided with the lifting lug, and the lifting lug is provided with the second lifting hole.
In the tool for lifting and turning over the rotor magnetic pole of the large generator motor, the reinforcing frame is of a frame structure formed by connecting the upper cross beam, the lower cross beam, the left side plate and the right side plate through bolts, the inner side surface of the upper cross beam is provided with the upper base plate, the upper base plate is provided with the groove matched with the rotor magnetic pole, and the inner side surface of the lower cross beam is provided with the lower base plate.
In the rotor magnetic pole hoisting and turning tool for the large generator motor, the length of the upper end part is greater than that of the lower end part, and the lower end part does not protrude out of the position of the lower base plate.
In the tool for lifting and turning over the magnetic pole of the rotor of the large generator motor, the upper end part and the lower end part are both provided with the reinforcing rods.
In the tool for lifting and turning over the magnetic pole of the rotor of the large generator motor, the arc-shaped anti-skid plate is arranged on the outer arc surface of the arc-shaped part, and the surface of the arc-shaped anti-skid plate is a rough surface.
In the tool for hoisting and turning over the magnetic pole of the rotor of the large generator motor, the reinforcing frame is also provided with a fastening belt for binding the magnetic pole of the rotor.
In the tool for hoisting and turning over the magnetic pole of the rotor of the large generator motor, the first fixing strip and the second fixing strip are both sleeved with the buffer sleeves.
Compared with the prior art, the large rotor magnetic pole is accurately and horizontally adjusted to the reinforcing frame of the turnover tool through the horizontal hanging tool, wherein the horizontal hanging tool adopts two horizontal hanging plates, the clamping blocks on the horizontal hanging plates are clamped with the T-shaped tail grooves of the rotor magnetic pole, and the T-shaped strips of the rotor magnetic pole are clamped with the T-shaped grooves on the horizontal hanging tool, so that the rotor magnetic pole is firmly fixed, the stable horizontal hanging state can be kept, and the safety coefficient is high;
the bottom of the rotor magnetic pole is fixed through the reinforcing frame, the two ends of the surface of the rotor magnetic pole are fixed through the first fixing strip and the second fixing strip, and the rotor magnetic pole is fastened through the fastening belt, so that the fixing is firm and stable; the lifting hook of bridge crane is connected with the lug, lifts up the one end of enhancement frame to make the turnover frame ground connection of the enhancement frame other end, the arc portion and the ground butt of turning over the frame in the upset process, along the extrados upset of arc portion, thereby make the rotor magnetic pole stand up to the vertical state by the horizontality, the upset is steady, the condition of rocking, jolting can not appear, also can not cause the damage to the rotor magnetic pole, work efficiency is high.
The invention has the characteristics of simple integral structure, convenient use, low cost, high safety coefficient, high working efficiency, good stability and effective protection of the magnetic poles of the rotor.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a flat hanger plate;
FIG. 3 is a schematic view of the connection structure of the flat hanger plate and the rotor magnetic pole;
FIG. 4 is a schematic view of a flat lifting structure of a flat lifting tool and a rotor magnetic pole;
FIG. 5 is a schematic view of the construction of the turn-over tool;
FIG. 6 is a schematic view of a first fixing strip;
FIG. 7 is a schematic structural view of the overturn frame;
FIG. 8 is a schematic view of the connection structure of the turning tool and the rotor magnetic pole;
fig. 9 is a schematic view of the turning structure of the turning tool and the rotor magnetic pole.
The labels in the figures are: 1. a hanging plate is horizontally hung; 11. a connecting rod; 12. a first hoisting hole; 2. a limiting block; 21. a clamping block; 22. a T-shaped groove; 23. a through hole; 24. fastening a bolt; 3. a reinforcing frame; 31. a first fixing strip; 32. lifting lugs; 33. a second hoisting hole; 34. an upper cross beam; 341. an upper base plate; 342. a groove; 35. a lower cross beam; 351. a lower base plate; 36. a left side plate; 37. a right side plate; 4. a turning frame; 41. an upper end portion; 42. an arcuate portion; 421. an arc-shaped antiskid plate; 43. a lower end portion; 44. a second fixing strip; 45. a reinforcing rod; 46. a buffer sleeve; 5. fastening the belt; 6. and a rotor magnetic pole.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Examples are given.
As shown in fig. 1-8, the tool for lifting and turning over a rotor magnetic pole of a large generator motor comprises a flat lifting tool and a turning-over tool, wherein the flat lifting tool comprises two flat lifting plates 1 which are connected through a connecting rod 11 and have the same structure, two ends of the bottom of each flat lifting plate 1 are provided with L-shaped limiting blocks 2 which are bent inwards, an inverted T-shaped fixture block 21 is arranged between the two limiting blocks 2, the fixture block 21 is clamped with a T-shaped tail groove of a rotor magnetic pole 6, and a T-shaped groove 22 for clamping a T-shaped strip of the rotor magnetic pole 6 is formed between the fixture block 21 and the limiting blocks 2;
the turnover tool comprises a reinforcing frame 3, two first fixing strips 31 clamped with a T-shaped tail groove of a rotor magnetic pole 6 are arranged at the top of the upper end of the reinforcing frame 3, a U-shaped turnover frame 4 is arranged at the lower end of the reinforcing frame 3, the turnover frame 4 is composed of an upper end part 41, an arc part 42 and a lower end part 43 which are sequentially connected, the upper end part 41 is positioned above the reinforcing frame 3, the arc part 42 is positioned outside the reinforcing frame 3, the lower end part 43 is positioned below the reinforcing frame 3, and two second fixing strips 44 embedded into the T-shaped tail groove of the rotor magnetic pole 6 are arranged at the bottom of the upper end part 41. The corners of the turning frame 4 are all in a round corner structure.
The flat hanger plate 1 is triangular, and a first hoisting hole 12 is formed in the top of the flat hanger plate 1. The triangular flat hanging plate 1 is stable in structure, adopts two flat hanging plates for hanging, is stable in hanging and is not easy to deviate. The bottom length of the flat hanger plate 1 is matched with the width of the rotor magnetic pole 6, the T-shaped strips on two sides of the rotor magnetic pole 6 are clamped in the T-shaped grooves 22 respectively, the T-shaped strip in the middle of the rotor magnetic pole 6 is located between the two clamping blocks 21, and on the premise of stable connection, the structure is simple, materials are saved, and cost is reduced.
The limiting block 2 is provided with a through hole 23, a transverse fastening bolt 24 is arranged in the through hole 23, and the fastening bolt 24 is used for tightly jacking the rotor magnetic pole 6. The rotor magnetic pole 6 and the flat hanging tool are further fixed through the fastening bolt 24, and the fixing firmness is improved.
Lifting lugs 32 are arranged on the outer side of the upper end of the reinforcing frame 3, and second lifting holes 33 are formed in the lifting lugs 32.
The reinforcing frame 3 is a frame structure formed by connecting an upper cross beam 34, a lower cross beam 35, a left side plate 36 and a right side plate 37 with each other through bolts, an upper backing plate 341 is arranged on the inner side surface of the upper cross beam 34, a groove 342 matched with the rotor magnetic pole 6 is arranged on the upper backing plate 341, and a lower backing plate 351 is arranged on the inner side surface of the lower cross beam 35. The strengthening frame can be dismantled, and upper padding plate 341 and lower padding plate 351 have the cushioning effect for rotor magnetic pole 6 changes the rigid connection with strengthening frame 3 into flexonics, protects rotor magnetic pole 6's both ends, reduces the damage at rotor magnetic pole 6 both ends, makes rotor magnetic pole 6 stand up simultaneously and lifts by crane more steadily, safer.
The length of the upper end 41 is greater than that of the lower end 43, and the lower end 43 does not protrude from the lower pad 351.
Reinforcing rods 45 are arranged on the upper end part 41 and the lower end part 43. The strength of the body turning frame 4 is improved.
An arc-shaped antiskid plate 421 is arranged on the outer arc surface of the arc-shaped part 42, and the surface of the arc-shaped antiskid plate 421 is a rough surface. The bridge crane hook is prevented from slipping when the bridge crane hook returns to the right in the process of turning over and lifting the magnetic pole, so that the vibration or damage of the magnetic pole in the process of turning over and lifting the magnetic pole is avoided, and the stability is improved.
And a fastening belt 5 for binding the rotor magnetic pole is further arranged on the reinforcing frame 3, so that the fixing firmness is improved. The fastening band 5 is of conventional construction and will therefore not be described in detail here.
The first fixing strip 31 and the second fixing strip 44 are both provided with a buffer sleeve 46. When the first fixing strip 31 or the second fixing strip 44 is embedded into the T-shaped tail slot of the rotor magnetic pole, the buffer sleeve 46 can avoid rigid collision and protect the T-shaped tail slot of the rotor magnetic pole from being damaged; the first fixing strip 31 or the second fixing strip 44 can be attached to the T-shaped tail slot of the rotor magnetic pole more tightly, so that the magnetic pole can be turned over and lifted more stably and safely.
The working process is as follows: the flat hoisting tool is placed in the middle of the rotor magnetic pole 6, the fixture block 21 on the flat hoisting plate 1 is clamped with the T-shaped tail groove of the rotor magnetic pole 6, the T-shaped strips on two sides of the rotor magnetic pole 6 are respectively clamped into the T-shaped grooves 22, and then the fastening bolts 24 on two sides are used for further jacking and fixing, so that the rotor magnetic pole 6 is firmly fixed, stable hoisting in a horizontal state can be kept, the rotor magnetic pole 6 is accurately and stably hoisted into the reinforcing frame 3 assembled through bolts, and the safety factor is high;
the two ends of the surface of the rotor magnetic pole 6 are fixed through the first fixing strip 31 and the second fixing strip 44, and the rotor magnetic pole 6 is further fastened through the fastening belt 5, so that the fixing is firm and stable, and the phenomena of falling and slipping are avoided; the lifting hook of bridge crane is connected with lug 32, lifts the one end of reinforcement 3 to make 3 other ends of reinforcement stand 4 ground connection, stand 4 arc portion 42 and the ground butt of standing up frame in the upset process, along the extrados upset of arc portion 42, thereby make rotor magnetic pole 6 stand up to the vertical state by the horizontality, the upset is steady, the condition of rocking, jolting can not appear, also can not cause the damage to rotor magnetic pole 6, work efficiency is high.
Claims (7)
1. Large-scale generator motor rotor magnetic pole lifts by crane instrument of standing up, its characterized in that: the turning tool comprises a horizontal hanging tool and a turning tool, wherein the horizontal hanging tool comprises two horizontal hanging plates (1) which are connected through a connecting rod (11) and have the same structure, two ends of the bottom of each horizontal hanging plate (1) are provided with inward-bent L-shaped limiting blocks (2), an inverted T-shaped clamping block (21) is arranged between the two limiting blocks (2), and a T-shaped groove (22) for clamping a T-shaped strip of a rotor magnetic pole (6) is formed between each clamping block (21) and each limiting block (2);
the turnover tool comprises a reinforcing frame (3), wherein a first fixing strip (31) clamped with a T-shaped tail groove of a rotor magnetic pole (6) is arranged at the top of the upper end of the reinforcing frame (3), a U-shaped turnover frame (4) is arranged at the lower end of the reinforcing frame (3), the turnover frame (4) is composed of an upper end part (41), an arc part (42) and a lower end part (43) which are sequentially connected, the upper end part (41) is positioned above the reinforcing frame (3), the arc part (42) is positioned outside the reinforcing frame (3) and extends to the lower part of the reinforcing frame (3) to form a lower end part (43), and a second fixing strip (44) embedded into the T-shaped tail groove of the rotor magnetic pole (6) is arranged at the bottom of the upper end part (41); the length of the upper end part (41) is greater than that of the lower end part (43), and the lower end part (43) does not protrude out of the position of the lower cushion plate (351);
the reinforcing frame (3) is of a frame-shaped structure formed by mutually connecting an upper cross beam (34), a lower cross beam (35), a left side plate (36) and a right side plate (37) through bolts, an upper base plate (341) is arranged on the inner side surface of the upper cross beam (34), a groove (342) matched with the rotor magnetic pole (6) is formed in the upper base plate (341), and a lower base plate (351) is arranged on the inner side surface of the lower cross beam (35);
an arc-shaped antiskid plate (421) is arranged on the outer arc surface of the arc-shaped part (42), and the surface of the arc-shaped antiskid plate (421) is a rough surface.
2. The large generator-motor rotor pole lifting and turning tool according to claim 1, characterized in that: the flat hanger plate (1) is triangular, and a first hoisting hole (12) is formed in the top of the flat hanger plate (1).
3. The large generator-motor rotor pole lifting and turning tool according to claim 1, characterized in that: the limiting block (2) is provided with a through hole (23), a transverse fastening bolt (24) is arranged in the through hole (23), and the fastening bolt (24) is used for tightly jacking the rotor magnetic pole (6).
4. The large generator-motor rotor magnetic pole hoisting and turning tool according to claim 1, characterized in that: lifting lugs (32) are arranged on the outer sides of the upper ends of the reinforcing frames (3), and second lifting holes (33) are formed in the lifting lugs (32).
5. The large generator-motor rotor pole lifting and turning tool according to claim 1, characterized in that: and reinforcing rods (45) are arranged on the upper end part (41) and the lower end part (43).
6. The large generator-motor rotor pole lifting and turning tool according to claim 1, characterized in that: and a tightening belt (5) for binding the rotor magnetic pole (6) is also arranged on the reinforcing frame (3).
7. The large generator-motor rotor pole lifting and turning tool according to claim 1, characterized in that: and the first fixing strip (31) and the second fixing strip (44) are both sleeved with buffer sleeves (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110143376.8A CN112919300B (en) | 2021-02-02 | 2021-02-02 | Large-scale generator motor rotor magnetic pole lifts by crane instrument of standing up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110143376.8A CN112919300B (en) | 2021-02-02 | 2021-02-02 | Large-scale generator motor rotor magnetic pole lifts by crane instrument of standing up |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112919300A CN112919300A (en) | 2021-06-08 |
| CN112919300B true CN112919300B (en) | 2022-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110143376.8A Active CN112919300B (en) | 2021-02-02 | 2021-02-02 | Large-scale generator motor rotor magnetic pole lifts by crane instrument of standing up |
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| CN (1) | CN112919300B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6125388U (en) * | 1984-07-23 | 1986-02-15 | 株式会社東芝 | Rotor lifting device for rotating electric machines |
| CN202245722U (en) * | 2011-07-26 | 2012-05-30 | 辽宁蒲石河抽水蓄能有限公司 | Hoisting tool for hoisting and transporting magnet pole of rotor of hydraulic generator |
| CN206569899U (en) * | 2017-03-20 | 2017-10-20 | 中国水利水电第十四工程局有限公司 | It is a kind of can vertical lifting rotor magnetic pole instrument |
| CN208265592U (en) * | 2018-05-28 | 2018-12-21 | 中国水利水电第四工程局有限公司 | A kind of magnetic pole lifting auxiliary tool |
| CN209815490U (en) * | 2019-02-26 | 2019-12-20 | 华能澜沧江水电股份有限公司 | Hoisting device for rotor magnetic pole in hydraulic generator pit |
-
2021
- 2021-02-02 CN CN202110143376.8A patent/CN112919300B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6125388U (en) * | 1984-07-23 | 1986-02-15 | 株式会社東芝 | Rotor lifting device for rotating electric machines |
| CN202245722U (en) * | 2011-07-26 | 2012-05-30 | 辽宁蒲石河抽水蓄能有限公司 | Hoisting tool for hoisting and transporting magnet pole of rotor of hydraulic generator |
| CN206569899U (en) * | 2017-03-20 | 2017-10-20 | 中国水利水电第十四工程局有限公司 | It is a kind of can vertical lifting rotor magnetic pole instrument |
| CN208265592U (en) * | 2018-05-28 | 2018-12-21 | 中国水利水电第四工程局有限公司 | A kind of magnetic pole lifting auxiliary tool |
| CN209815490U (en) * | 2019-02-26 | 2019-12-20 | 华能澜沧江水电股份有限公司 | Hoisting device for rotor magnetic pole in hydraulic generator pit |
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| Publication number | Publication date |
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| CN112919300A (en) | 2021-06-08 |
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