阅读说明：本技术 发电机转子隐极式线圈端部整形压紧工装及整形压紧方法 (Shaping and pressing tool and shaping and pressing method for end part of non-salient pole type coil of generator rotor ) 是由 张蕊莉 董源利 王晓勤 王海岗 郗玉新 聂和林 于 2019-08-24 设计创作，主要内容包括：本发明公开了一种发电机转子隐极式线圈端部整形压紧工装及整形压紧方法,解决了现有技术在进行发电机转子隐极式端部线圈整形压紧时需要逐一对每个U形卡口内的线圈端部进行压紧整形所存在的费时耗力的问题。在发电机转子隐极式线圈端部所设置的几个U型钢卡附近,均匀设置两个整形压紧龙门架,在整形压紧龙门架上设置可手动下压的压杆,通过两压杆的下压,将松散的线圈端部同时分别压入到对应的U型钢卡的槽口中,从而改变了传统的需要逐一下压每个U型钢卡的槽口中松散的线圈端部的操作方法,节省了整形时间,提高了整形效率。(The invention discloses a shaping and compressing tool and a shaping and compressing method for the end part of a non-salient pole type coil of a generator rotor, and solves the problems of time and labor consumption in the prior art that the end part of the coil in each U-shaped bayonet needs to be compressed and shaped one by one when the non-salient pole type end coil of the generator rotor is shaped and compressed. Two shaping compression portal frames are uniformly arranged near a plurality of U-shaped steel clamps arranged at the end part of a non-salient pole type coil of a generator rotor, compression rods capable of being manually pressed are arranged on the shaping compression portal frames, loose coil end parts are simultaneously and respectively pressed into notches of corresponding U-shaped steel clamps through pressing of the two compression rods, and therefore the traditional operation method that loose coil end parts in the notches of all the U-shaped steel clamps need to be pressed one by one is changed, shaping time is saved, and shaping efficiency is improved.)

1. The utility model provides a shaping of generator rotor salient pole formula coil tip compresses tightly frock, including rotor core (1), be provided with salient pole formula coil long limit embedded groove (2) on rotor core (1), salient pole formula coil long limit (3) are embedded into salient pole formula coil long limit embedded groove (2), the tip at rotor core (1) is provided with salient pole formula coil minor face inboard group (4) and salient pole formula coil minor face outside group (5), be provided with first inboard U-shaped card (6) and second inboard U-shaped card (7) respectively on salient pole formula coil minor face inboard group (4), be provided with third outside U-shaped card (8) respectively on salient pole formula coil minor face outside group (5), fourth outside U-shaped card (9) and fifth outside U-shaped card (10), its characterized in that, there is cup jointed between salient pole formula coil minor face inboard group (4) of the rear side of first inboard U-shaped card (6) and the salient pole formula coil minor face outside group (5) of the front side of third outside U-shaped card (8) salient pole formula coil minor face inboard U-shaped card (5) A right rear shaping portal frame (11), a right front shaping portal frame (12) is sleeved between a hidden pole type coil short edge inner side group (4) at the front side of the second inner side U-shaped card (7) and a hidden pole type coil short edge outer side group (5) at the rear side of the fifth outer side U-shaped card (10), the structure of the right rear shaping portal frame (11) is completely the same as that of the right front shaping portal frame (12), the bottom end of the right front shaping portal frame (12) is provided with a movable inserted bar (19) at the lower end of the right front shaping portal frame, a top end beam of a portal frame (18) of a right front shaping portal frame (12) is provided with a crimping screw bolt threaded hole (20), the crimping screw (21) is screwed in the crimping screw screwing hole (20), the bottom end of the crimping screw (21) is connected with a pressure lever (22), and the pressure lever (22) is crimped on the inner side group (4) of the short side of the non-salient pole type coil and the outer side group (5) of the short side of the non-salient pole type coil.

2. The shaping and compacting tool for the end part of the non-salient pole coil of the generator rotor as claimed in claim 1, wherein two upright posts of the portal frame (18) are respectively provided with a guide strip hole (23), and the end part of the pressure lever (22) is movably arranged in the guide strip hole (23); the pressing rod (22) is provided with pressing fulcrum connecting holes (24) which are connected with the pressing screw rod (21) at equal intervals.

3. A shaping and compacting method for the end part of a non-salient pole type coil of a generator rotor comprises the following steps:

firstly, a right rear shaping portal frame (11) is sleeved between a salient pole type coil short edge inner side group (4) at the rear side of a first inner side U-shaped card (6) and a salient pole type coil short edge outer side group (5) at the front side of a third outer side U-shaped card (8), a right front shaping portal frame (12) is sleeved between the salient pole type coil short edge inner side group (4) at the front side of a second inner side U-shaped card (7) and the salient pole type coil short edge outer side group (5) at the rear side of a fifth outer side U-shaped card (10), and the structure of the right rear shaping portal frame (11) is completely the same as that of the right front shaping portal frame (12); the bottom end of a right front shaping portal frame (12) is provided with a movable inserting rod (19) at the lower end of the right front shaping portal frame, a crimping screw (21) is screwed in a crimping screw screwing hole (20), the bottom end of the crimping screw (21) is connected with a pressing rod (22), and the pressing rod (22) is crimped on a hidden pole type coil short edge inner side group (4) and a hidden pole type coil short edge outer side group (5);

secondly, pressing a pressing rod (22) on the inner side group (4) of the short side of the non-salient pole type coil and the outer side group (5) of the short side of the non-salient pole type coil by rotating a pressing screw rod (21) on a right front shaping portal frame (12); by rotating a right rear shaping portal frame crimping screw rod on a right rear shaping portal frame (11), a pressure rod on the right rear shaping portal frame is crimped on a hidden pole type coil short edge inner side group (4) and a hidden pole type coil short edge outer side group (5), so that the hidden pole type coil short edge inner side group (4) and the hidden pole type coil short edge outer side group (5) enter into corresponding U-shaped bayonet sockets;

thirdly, covering and connecting a first inner side U-shaped card top cover plate (13) to a top port of a first inner side U-shaped card (6), covering and connecting a second inner side U-shaped card top cover plate (14) to a top port of a second inner side U-shaped card (7), covering and connecting a third outer side U-shaped card top cover plate (15) to a top port of a third outer side U-shaped card (8), covering and connecting a fourth outer side U-shaped card top cover plate (16) to a top port of a fourth outer side U-shaped card (9), and covering and connecting a fifth outer side U-shaped card top cover plate (17) to a top port of a fourth outer side U-shaped card (10);

and fourthly, drawing out a movable inserted bar (19) at the lower end of the right front reshaping portal frame, detaching the right front reshaping portal frame (12), drawing out a movable inserted bar at the lower end of the right rear reshaping portal frame, and detaching the right rear reshaping portal frame (11).

Technical Field

The invention relates to a shaping tool for an end part of a non-salient pole type coil on a generator rotor, in particular to a shaping and pressing tool and a shaping and pressing method for the end part of the non-salient pole type coil of the generator rotor.

Background

The rotor of the high-speed generator usually adopts a non-salient pole type coil structure, each magnetic pole on the rotor is formed by embedding a rotor coil into a wire embedding groove on a rotor iron core, each magnetic pole rotor coil is formed by winding a concentric multi-turn winding, the long edge of each magnetic pole rotor coil is embedded into the wire embedding groove on the rotor iron core, and the short edge of each magnetic pole rotor coil is exposed out of the outer sides of two end faces of the rotor iron core to form a coil end part; in order to prevent the coil end from shifting along the radiation direction under the action of larger centrifugal force when the motor runs, in the assembly of the motor, the rotor coil end must be fastened, the existing fastening mode generally adopts U-shaped steel clamps, a plurality of U-shaped steel clamps are fixed on a steel ring on the outer side surface of a rotor core in advance, the rotor coil end is embedded into the U-shaped steel clamps in groups, then a fastening cover plate is arranged on the port of each U-shaped steel clamp, and the fastening cover plate is matched with the U-shaped steel clamps to fix the coil end firmly; because rotor coil tip is for following the axial layering arrangement, inside coil tip and outside coil tip need set up U shaped steel card separately and fix, after embedding the coil successive layer in the U type groove of U shaped steel card, the coil tip of U shaped steel card port department is in loose state, especially have heavily, the leading-out terminal of interelectrode line, its loose state is more serious, loose coil leads to the unable direct insertion of the fastening apron of U shaped steel card on the notch of U shaped steel card, can't realize cramping to the coil tip, in order to make the U shaped steel card fasten the apron and can smoothly block in, current conventional process is: the coil end part in the loose U-shaped steel card port is manually knocked and shaped, so that the coil end part completely enters the U-shaped steel card port, and the coil end part in the U-shaped steel card is required to be pressed, shaped and fastened one by one due to the fact that the reserved space of the coil end part is small, and the defects that shaping work is time-consuming and labor-consuming exist.

Disclosure of Invention

The invention provides a shaping and compressing tool and a shaping and compressing method for the end part of a non-salient pole type coil of a generator rotor, and solves the technical problems of time and labor consumption in the prior art that the end part of the coil in each U-shaped bayonet needs to be compressed and shaped one by one when the non-salient pole type end coil of the generator rotor is shaped and compressed.

The invention solves the technical problems by the following technical scheme:

the general concept of the invention is: two shaping compression portal frames are uniformly arranged near a plurality of U-shaped steel clamps arranged at the end part of a non-salient pole type coil of a generator rotor, compression rods capable of being manually pressed are arranged on the shaping compression portal frames, loose coil end parts are simultaneously and respectively pressed into notches of corresponding U-shaped steel clamps through pressing of the two compression rods, and therefore the traditional operation method that loose coil end parts in the notches of all the U-shaped steel clamps need to be pressed one by one is changed, shaping time is saved, and shaping efficiency is improved.

A shaping and pressing tool for the hidden-pole coil end of generator rotor is composed of rotor core, hidden-pole long-edge embedding slot on rotor core, hidden-pole long-edge embedding slot in hidden-pole long-edge embedding slot, hidden-pole short-edge internal group and hidden-pole short-edge external group on rotor core, the first and the second internal U-shaped clamps on the hidden-pole short-edge internal group, the third, the fourth and the fifth external U-shaped clamps on the hidden-pole short-edge external group, the right shaping portal frame between the hidden-pole short-edge internal group on the back side of the first U-shaped clamp and the hidden-pole short-edge external group on the front side of the third U-shaped clamp, and the hidden-pole short-edge external group on the back side of the second U-shaped clamp, the structure of the right rear shaping portal frame is completely the same as that of the right front shaping portal frame, a movable insertion rod at the lower end of the right front shaping portal frame is arranged at the bottom end of the right front shaping portal frame, a crimping screw rod screwing hole is formed in a top end beam of a portal frame of the right front shaping portal frame, a crimping screw rod is screwed in the crimping screw rod screwing hole, a pressing rod is connected to the bottom end of the crimping screw rod, and the pressing rod is in crimping connection with the inner side group of the short edge of the non-salient pole type coil and the outer side group of the short edge of the non-salient pole type coil.

The two upright posts of the portal frame are both provided with a guide strip hole, and the end part of the pressure lever is movably arranged in the guide strip hole; and jacking fulcrum connecting holes for connecting the crimping screw rods are arranged on the pressure rod at equal intervals.

A shaping and compacting method for the end part of a non-salient pole type coil of a generator rotor comprises the following steps:

the method comprises the following steps that firstly, a right rear shaping portal frame is sleeved between a hidden pole type coil short edge inner side group on the rear side of a first inner side U-shaped card and a hidden pole type coil short edge outer side group on the front side of a third outer side U-shaped card, a right front shaping portal frame is sleeved between a hidden pole type coil short edge inner side group on the front side of a second inner side U-shaped card and a hidden pole type coil short edge outer side group on the rear side of a fifth outer side U-shaped card, and the structure of the right rear shaping portal frame is completely the same as that of the right front shaping portal frame; the bottom end of the right front shaping portal frame is provided with a movable inserting rod at the lower end of the right front shaping portal frame, a crimping screw is screwed in a crimping screw thread hole, the bottom end of the crimping screw is connected with a pressing rod, and the pressing rod is crimped on the inner side group of the short edge of the non-salient pole type coil and the outer side group of the short edge of the non-salient pole type coil;

secondly, pressing a pressure rod on the inner side group of the short edge of the non-salient pole type coil and the outer side group of the short edge of the non-salient pole type coil by rotating a pressing screw rod on a right front shaping portal frame; the compression bar on the right rear shaping portal frame is pressed on the inner side group of the short edge of the non-salient pole type coil and the outer side group of the short edge of the non-salient pole type coil by rotating a compression screw of the right rear shaping portal frame on the right rear shaping portal frame, so that the inner side group of the short edge of the non-salient pole type coil and the outer side group of the short edge of the non-salient pole type coil enter the corresponding U-shaped bayonet;

thirdly, covering and connecting a top cover plate of the first inner side U-shaped card to a top port of the first inner side U-shaped card, covering and connecting a top cover plate of the second inner side U-shaped card to a top port of the second inner side U-shaped card, covering and connecting a top cover plate of the third outer side U-shaped card to a top port of the third outer side U-shaped card, covering and connecting a top cover plate of the fourth outer side U-shaped card to a top port of the fourth outer side U-shaped card, and covering and connecting a top cover plate of the fifth outer side U-shaped card to a top port of the fourth outer side U-shaped card;

and fourthly, drawing out the movable inserted rod at the lower end of the right front reshaping portal frame, unloading the right front reshaping portal frame, drawing out the movable inserted rod at the lower end of the right rear reshaping portal frame, and unloading the right rear reshaping portal frame.

The invention has the advantages of easy field realization and simple operation process, greatly improves the working efficiency of the coil end fixing process, and reduces the probability of easy damage of the insulating layer caused by coil shaping.

Drawings

FIG. 1 is a schematic structural view of the present invention after the top cover plate of the U-shaped card is covered on the top port of the U-shaped card after the fastening and shaping are completed;

FIG. 2 is a schematic structural view of the coil end of the present invention before fastening and shaping;

FIG. 3 is a schematic structural view of a reforming gantry of the present invention;

FIG. 4 is a schematic structural view of a column of the reforming gantry of the present invention;

FIG. 5 is a schematic structural view of the strut 22 of the present invention;

fig. 6 is a cross-sectional view taken along line B-B of fig. 1, showing the U-shaped clip of the present invention in secure engagement with the coil end.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings:

the utility model provides a shaping of generator rotor non-salient pole formula coil tip compresses tightly frock, including rotor core 1, be provided with non-salient pole formula coil long limit embedded groove 2 on rotor core 1, non-salient pole formula coil long limit 3 is embedded into non-salient pole formula coil long limit embedded groove 2, the tip at rotor core 1 is provided with non-salient pole formula coil minor face inboard group 4 and non-salient pole formula coil minor face outside group 5, be provided with first inboard U-shaped card 6 and second inboard U-shaped card 7 on non-salient pole formula coil minor face inboard group 4 respectively, be provided with third outside U-shaped card 8 on non-salient pole formula coil minor face outside group 5 respectively, fourth outside U-shaped card 9 and fifth outside U-shaped card 10, non-salient pole formula coil minor face inboard group 4 of first inboard U-shaped card 6 rear side and non-salient pole formula coil minor face outside group 5 of third outside U-shaped card 8 front side cup joint have right back plastic portal frame 11, non-salient pole formula coil minor face inboard group 4 of second inboard U-shaped card 7 front side and non-salient pole formula coil minor face outside U-shaped card 10 rear side U-shaped card A right front shaping portal frame 12 is sleeved between the type coil short edge outer side groups 5, the structure of the right rear shaping portal frame 11 is completely the same as that of the right front shaping portal frame 12, a movable insertion rod 19 at the lower end of the right front shaping portal frame is arranged at the bottom end of the right front shaping portal frame 12, a crimping screw bolt threaded hole 20 is arranged on a top end beam of a portal frame 18 of the right front shaping portal frame 12, a crimping screw bolt 21 is screwed in the crimping screw bolt threaded hole 20, a compression rod 22 is connected at the bottom end of the crimping screw bolt 21, and the compression rod 22 is crimped on the salient pole type coil short edge inner side group 4 and the salient pole type coil short edge outer side group 5.

The two upright posts of the portal frame 18 are both provided with a guide strip hole 23, and the end part of the pressure lever 22 is movably arranged in the guide strip hole 23; the pressing lever 22 is provided with pressing fulcrum connection holes 24 at equal intervals for connecting the pressing screw 21.

A shaping and compacting method for the end part of a non-salient pole type coil of a generator rotor comprises the following steps:

firstly, a right rear shaping portal frame 11 is sleeved between a hidden pole type coil short side inner side group 4 at the rear side of a first inner side U-shaped card 6 and a hidden pole type coil short side outer side group 5 at the front side of a third outer side U-shaped card 8, a right front shaping portal frame 12 is sleeved between a hidden pole type coil short side inner side group 4 at the front side of a second inner side U-shaped card 7 and a hidden pole type coil short side outer side group 5 at the rear side of a fifth outer side U-shaped card 10, and the structure of the right rear shaping portal frame 11 is completely the same as that of the right front shaping portal frame 12; a movable inserting rod 19 at the lower end of the right front shaping portal frame is arranged at the bottom end of the right front shaping portal frame 12, a crimping screw 21 is screwed in a crimping screw screwing hole 20, a pressing rod 22 is connected to the bottom end of the crimping screw 21, and the pressing rod 22 is crimped on the inner side group 4 of the short side of the non-salient pole coil and the outer side group 5 of the short side of the non-salient pole coil;

secondly, pressing a pressing rod 22 on the inner side group 4 of the short edge of the non-salient pole type coil and the outer side group 5 of the short edge of the non-salient pole type coil by rotating a pressing screw 21 on the right front shaping portal frame 12; by rotating a right rear shaping portal frame crimping screw rod on a right rear shaping portal frame 11, a pressure rod on the right rear shaping portal frame is crimped on the hidden pole type coil short edge inner side group 4 and the hidden pole type coil short edge outer side group 5, so that the hidden pole type coil short edge inner side group 4 and the hidden pole type coil short edge outer side group 5 enter into corresponding U-shaped bayonet sockets;

thirdly, covering and connecting a top end cover plate 13 of the first inner side U-shaped card to a top end port of the first inner side U-shaped card 6, covering and connecting a top end cover plate 14 of the second inner side U-shaped card to a top end port of the second inner side U-shaped card 7, covering and connecting a top end cover plate 15 of the third outer side U-shaped card to a top end port of the third outer side U-shaped card 8, covering and connecting a top end cover plate 16 of the fourth outer side U-shaped card to a top end port of the fourth outer side U-shaped card 9, and covering and connecting a top end cover plate 17 of the fifth outer side U-shaped card to a top end port of the fourth outer side U-shaped card 10;

and fourthly, extracting the movable inserted rod 19 at the lower end of the right front shaping portal frame, detaching the right front shaping portal frame 12, extracting the movable inserted rod at the lower end of the right rear shaping portal frame, and detaching the right rear shaping portal frame 11.