Excitation rotor slot bottom insulation paper modified plastic framework

Abstract

The utility model discloses an excitation rotor slot bottom insulation paper modified plastic skeleton, comprising an iron core, the outer side of the iron core is provided with a plurality of slots, and an upper skeleton and a lower skeleton are inserted in the slots; the upper framework and the lower framework are symmetrically arranged on the iron core, and adjacent ends of the upper framework and the lower framework abut against each other; clamping blocks matched with the slots are connected to the upper framework and the lower framework; a clamping groove is further formed in the clamping block; the shape of the clamping groove is matched with that of the slot, and the clamping groove is communicated with the outer side of the iron core; a plurality of fixing plates are fixedly connected to the inner sides of the upper framework and the lower framework; the multiple fixing plates are arranged in a central symmetry mode. And the two opposite fixing plates are fixedly connected through threads. According to the utility model, the insulation paper is divided into the upper framework and the lower framework which are made of plastic materials, and the upper framework and the lower framework which are customized in advance are respectively inserted into the slots in use, so that the connection of the insulation framework is quickly completed, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of excitation rotor installation, in particular to an excitation rotor slot bottom insulating paper-modified plastic frame. Background Art

[0002] The main functions of the exciter rotor insulation paper are to provide electrical insulation, support and fixation, filling and heat insulation, protection, and moisture and dust prevention. The existing exciter rotor slot bottom insulation uses insulation paper to insulate the winding and the core, but the insertion of insulation paper into the core slot is cumbersome, and individual pieces of insulation paper need to be inserted into the slot one by one, which is inefficient. Utility Model Content

[0003] The utility model aims to solve the problems in the prior art and proposes a plastic frame for replacing insulating paper at the bottom of an excitation rotor slot.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An insulating paper-to-plastic frame at the bottom of an excitation rotor slot comprises an iron core, a plurality of slots are provided on the outer side of the iron core, an upper frame and a lower frame are inserted into the slots; the upper frame and the lower frame are symmetrically arranged on the iron core and abut against one adjacent end; a card block matching the slot is connected to the upper frame and the lower frame; a card slot is also provided on the card block; the shape of the card slot matches the slot and is communicated with the outer side of the iron core; a plurality of fixing plates are fixedly connected to the inner sides of the upper frame and the lower frame; the plurality of fixing plates are centrally symmetrically arranged; and two opposite fixing plates are fixedly connected by threads.

[0006] Preferably, a center hole is provided in the middle of the iron core; a plurality of connection holes are also provided on the iron core; and the connection holes are centrally symmetrically arranged on the iron core.

[0007] Preferably, a plug-in is plugged into the fixing plate located on the upper frame; and the plug-in matches the connecting hole; and the plug-in passes through the fixing plate into the connecting hole.

[0008] Preferably, a threaded hole is provided at the lower end of the plug-in; a screw matching the threaded hole is inserted into the fixing plate located on the lower frame; and the two opposite fixing plates are fixedly connected by the plug-in and the screw.

[0009] Preferably, the outer sides of the plug-in and the screw rod are both connected with limiting blocks; the plug-in and the screw rod are respectively abutted against the fixing plate through the limiting blocks.

[0010] Preferably, the lower end of the upper frame is connected with a connecting rod; the upper end of the lower frame is provided with a connecting groove matching the connecting rod; the upper frame and the lower frame are plugged in through the connecting rod and the connecting groove.

[0011] Preferably, a plurality of the connecting rods are provided and are arranged in central symmetry; and the connecting rods are arranged on the clamping blocks close to the fixing plate.

[0012] Compared with the prior art, the utility model provides a plastic skeleton for replacing the insulating paper at the bottom of the slot of the exciting rotor, and has the following beneficial effects:

[0013] For the plastic skeleton for replacing the insulating paper at the bottom of the slot of the exciting rotor, by dividing the insulating paper into an upper skeleton and a lower skeleton made of plastic material, the pre-customized upper skeleton and lower skeleton are respectively inserted into the slots during use, so as to quickly complete the connection of the insulating skeleton, improve the work efficiency; and a plug and a screw are arranged between the upper skeleton and the lower skeleton and are connected by threads to prevent the upper skeleton and the lower skeleton from falling off, and the connecting rod and the connecting slot are combined and used to improve the stability between the upper skeleton and the lower skeleton and facilitate disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the utility model;

[0015] Figure 2 is an exploded view of the utility model;

[0016] Figure 3 is a top view of the utility model;

[0017] Figure 4 is a structural schematic diagram of the connection of the plug of the utility model;

[0018] Figure 5 is a structural schematic diagram of the connecting rod of the utility model.

[0019] In the figure: 10, iron core; 11, slot; 12, central hole; 13, connection hole; 21, upper skeleton; 22, lower skeleton; 23, clamping block; 24, clamping groove; 31, fixing plate; 32, plug; 33, threaded hole; 34, screw; 35, limiting block; 36, connecting rod; 37, connecting slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will refer to Figures 1-4, the specific implementation of replacing the insulating paper at the bottom of the excitation rotor slot with a plastic skeleton in the present utility model is introduced, including an iron core 10, with a number of slots 11 provided on the outer side of the iron core 10, and an upper skeleton 21 and a lower skeleton 22 are inserted into the slots 11; the upper skeleton 21 and the lower skeleton 22 are symmetrically arranged on the iron core 10 and the adjacent ends are in contact; both the upper skeleton 21 and the lower skeleton 22 are connected with a clamping block 23 matching the slot 11; a clamping groove 24 is further provided on the clamping block 23; the shape of the clamping groove 24 matches the slot 11 and is communicated with the outer side of the iron core 10; during use, the pre-customized upper skeleton 21 and lower skeleton 22 are respectively inserted into the slot 11 to quickly complete the connection of the insulating skeleton.

[0021] To prevent the upper skeleton 21 and the lower skeleton 22 from falling off, a plurality of fixing plates 31 are fixedly connected to the inner sides of both the upper skeleton 21 and the lower skeleton 22; the plurality of fixing plates 31 are arranged in central symmetry; and two opposite fixing plates 31 are fixedly connected by threads.

[0022] A central hole 12 is provided in the middle of the iron core 10; a number of connecting holes 13 are also provided on the iron core 10; the connecting holes 13 are arranged in central symmetry on the iron core 10; a plug-in part 32 is inserted into the fixing plate 31 of the upper skeleton 21; and the plug-in part 32 matches the connecting hole 13; the plug-in part 32 passes through the fixing plate 31 into the connecting hole 13; a threaded hole 33 is provided at the lower end of the plug-in part 32; a screw rod 34 matching the threaded hole 33 is inserted into the fixing plate 31 of the lower skeleton 22; two opposite fixing plates 31 are fixedly connected by the plug-in part 32 and the screw rod 34; limiting blocks 35 are connected to the outer sides of both the plug-in part 32 and the screw rod 34; the plug-in part 32 and the screw rod 34 are respectively in contact with the fixing plate 31 through the limiting blocks 35.

[0023] To strengthen the stability between the upper skeleton 21 and the lower skeleton 22, a connecting rod 36 is connected to the lower end of the upper skeleton 21; a connecting groove 37 matching the connecting rod 36 is provided at the upper end of the lower skeleton 22; the upper skeleton 21 and the lower skeleton 22 are inserted and connected through the connecting rod 36 and the connecting groove 37; a number of connecting rods 36 are provided and arranged in central symmetry; and the connecting rods 36 are arranged on the clamping blocks 23 close to the fixing plates 31.

[0024] The above is only the preferred specific implementation of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An excitation rotor slot bottom insulating paper-to-plastic frame, comprising an iron core (10), wherein a plurality of slots (11) are arranged on the outer side of the iron core (10), characterized in that: An upper frame (21) and a lower frame (22) are inserted into the slot (11); the upper frame (21) and the lower frame (22) are symmetrically arranged on the iron core (10) and abut against one adjacent end; a clamping block (23) matching the slot (11) is connected to the upper frame (21) and the lower frame (22); a clamping slot (24) is also provided on the clamping block (23); the shape of the clamping slot (24) matches the slot (11) and is communicated with the outer side of the iron core (10); a plurality of fixing plates (31) are fixedly connected to the inner side of the upper frame (21) and the lower frame (22); the plurality of fixing plates (31) are centrally symmetrically arranged; and two opposite fixing plates (31) are fixedly connected by threads.

2. The excitation rotor slot bottom insulating paper-to-plastic frame according to claim 1, characterized in that: A central hole (12) is provided in the middle of the iron core (10); a plurality of connection holes (13) are also provided on the iron core (10); and the connection holes (13) are centrally symmetrically arranged on the iron core (10).

3. The excitation rotor slot bottom insulating paper-to-plastic frame according to claim 2, characterized in that: A plug-in unit (32) is plugged into the fixing plate (31) located on the upper frame (21); the plug-in unit (32) matches the connecting hole (13); and the plug-in unit (32) passes through the fixing plate (31) into the connecting hole (13).

4. The excitation rotor slot bottom insulating paper-to-plastic frame according to claim 3, characterized in that: A threaded hole (33) is provided at the lower end of the plug-in (32); a screw rod (34) matching the threaded hole (33) is inserted into the fixing plate (31) located on the lower frame (22); and two opposite fixing plates (31) are fixedly connected via the plug-in (32) and the screw rod (34).

5. The excitation rotor slot bottom insulating paper-to-plastic frame according to claim 3, characterized in that: The outer sides of the plug-in unit (32) and the screw rod (34) are both connected to limiting blocks (35); the plug-in unit (32) and the screw rod (34) are respectively in contact with the fixing plate (31) via the limiting blocks (35).

6. The excitation rotor slot bottom insulating paper-to-plastic frame according to claim 1, characterized in that: The lower end of the upper frame (21) is connected to a connecting rod (36); the upper end of the lower frame (22) is provided with a connecting groove (37) matching the connecting rod (36); the upper frame (21) and the lower frame (22) are plugged together via the connecting rod (36) and the connecting groove (37).

7. The excitation rotor slot bottom insulating paper-to-plastic frame according to claim 6, characterized in that: The connecting rods (36) are provided in plurality and are arranged in a centrally symmetrical manner; and the connecting rods (36) are arranged on a clamping block (23) close to the fixing plate (31).

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