Universal tool for turn-to-turn insulation of pole coil pad

Abstract

The utility model relates to the technical field of water turbine generators, and discloses a pole coil pad turn-to-turn insulation universal tool which comprises two winding assemblies, each winding assembly comprises a bottom plate, a supporting column and at least two movable stand columns, a T-shaped groove is formed in the upper surface of each bottom plate, the movable stand columns are movably connected into the T-shaped grooves through elastic pieces, and the elastic pieces are arranged on the supporting columns. A row of supporting column mounting holes are formed in the side face, making contact with the coil, of the movable stand column. The requirements of coils of different sizes are met, complete generalization is achieved, and the design and manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic turbine generators, in particular to a universal tool for insulating magnetic pole coil turns. Background Art

[0002] The winding process typically involves several steps: first, selecting a suitable insulating material as a liner to ensure inter-turn insulation; then, cutting the insulating material into appropriate sizes and placing it between each turn; then, using a winding machine to evenly wind the wire around the insulating material, ensuring a tight coil and uniform turn-to-turn spacing; and finally, inspecting the coil's integrity and insulation performance to ensure it meets design requirements. This requires the use of winding tools, which facilitate the installation of liner insulation between turns after the coil has completed the cold pressing process.

[0003] Chinese patent document CN201830121U discloses a heat dissipation turn structure of a synchronous motor pole coil, including ordinary turns, heat dissipation turns, pads and inter-turn insulation. The heat dissipation turns are arranged between the ordinary turns, and a pad is placed at the end of each heat dissipation turn so that a part of the width of the heat dissipation turn protrudes beyond the ordinary turn.

[0004] Chinese patent document CN117748858A discloses a production process for magnetic pole coils, which includes the following steps in sequence: coil winding or welding preliminary processing → cold pressing → inter-turn insulation → inter-turn hot pressing → pole body insulation → planing parallelism, wherein milling of the support block position is performed before the inter-turn insulation step.

[0005] The winding molds currently in use, such as Figure 1 and Figure 2 As shown, the winding tool is a cuboid made of wooden boards glued together. Holes for installing support columns are provided on the side of the cuboid. The coil can be wound around the winding tool in circles to be formed and fixed.

[0006] This prior art has the following disadvantages: since the sizes of different magnetic pole coils are different, winding tools need to be redesigned and manufactured for each unit, resulting in cost waste. Utility Model Content

[0007] In order to solve the technical problem of poor versatility of pole coil winding tools, the utility model provides a universal tool for insulating the turns of pole coil pads, which is characterized in that it includes two winding components, each of the winding components includes a base plate, a support column and at least two movable columns, the upper surface of the base plate is provided with a T-shaped slot, the movable columns are movably connected in the T-shaped slot through elastic members, and a row of support column mounting holes are provided on the side of the movable column that contacts the coil.

[0008] In order to facilitate the adjustment of the movable column, a base is fixed to the bottom of the movable column, and both ends of the base are connected to the T-slot through elastic members.

[0009] Preferably, the tightening member includes a bolt and a nut, the head of the bolt is located in the T-slot, and the bolt passes through the base and is connected to the nut.

[0010] Preferably, the elastic member on the base close to one end of the support column is hidden in the base.

[0011] In order to avoid coil deformation and improve production efficiency, two T-slots are provided on the upper surface of the base plate, and each T-slot is connected to at least two movable columns.

[0012] Preferably, the two T-slots on the bottom plate are arranged parallel to each other.

[0013] Preferably, the movable column is a square tube.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model's multiple movable columns jointly form the outer contour of the coil. The width of the outer contour can be adjusted on the base plate by the movable columns according to the actual width and length of the coil, meeting the needs of coils of different sizes, achieving complete universalization and reducing design and manufacturing costs. By using the improved universal tool, the requirements for inter-turn insulation can be met. The use of the universal tool can save approximately 20-30 wooden cores each year. The manufacturing and material costs of each wooden core are approximately 200 yuan, resulting in an annual expenditure of 4,000-6,000 yuan on wooden cores.

[0016] 2. Save space. According to the above data, the new support tool can be directly fixed on the workbench and can be used repeatedly after adjusting the position, avoiding the need to process and stack the old wooden core unit after it is used up, which takes up warehouse space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of an existing winding tool;

[0018] Figure 2 for Figure 1 A top view of

[0019] Figure 3 A schematic diagram of an embodiment of a universal tool for insulating magnetic pole coil turns insulators according to the present invention;

[0020] Figure 4 It is a front view of the winding assembly;

[0021] Figure 5A side view of the winding assembly. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific implementation methods:

[0023] 1. The reference numerals in the drawings of the specification include: base plate 1, support column 2, movable column 3, T-slot 4, support column mounting hole 5, base 6, hidden hole 7, bolt 8, nut 9, coil 10.

[0024] Example 1

[0025] like Figure 3-5 As shown, a universal tool for insulating the turns of a magnetic pole coil pad is provided, comprising two winding assemblies, wherein the two winding assemblies are not connected to each other and the relative distance between them can be adjusted. Each winding assembly comprises a base plate 1, a support column 2 and four movable columns 3, wherein the movable columns 3 are square tubes, and two T-slots 4 are provided on the upper surface of the base plate 1. The two T-slots 4 on the base plate 1 are arranged parallel to each other, and each T-slot 4 connects two movable columns 3. The movable columns 3 are movably connected in the T-slots 4 through elastic members, and a row of support column mounting holes 5 are provided on the side of the movable column 3 in contact with the coil 10. The movable columns 3 are distributed in a rectangular shape to fit the outer contour of the coil 10. After adjusting the movable columns 3 to ensure that they fit the outer contour of the coil 10, the winding assembly is directly fixed on the workbench by a clamp.

[0026] A base 6 is inserted and fixed at the bottom of the movable column 3, and both ends of the base 6 are connected to the T-slot 4 through elastic members, wherein the base 6 has a hidden hole 7 on one end close to the support column 2, and the elastic member on the base 6 close to one end of the support column 2 is hidden in the base 6 through the hidden hole 7 to avoid interfering with the installation of the support column 2.

[0027] The tightening member includes a bolt 8 and a nut 9 . The head of the bolt 8 is located in the T-slot 4 . The bolt 8 passes through the base 6 and is connected to the nut 9 .

[0028] The design size of the base plate 1 is 600mm×400mm×40mm, and two T-slots 4 are designed in the width direction of 400mm to enable the movable column 3 to be freely adjusted in the 600mm size.

[0029] The above is only an embodiment of the present utility model. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field are aware of all common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the inspiration given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the scope of protection of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A universal tool for insulating the turns of magnetic pole coils, characterized by: It includes two winding assemblies, each of which includes a base plate, a support column and at least two movable columns. The upper surface of the base plate is provided with a T-shaped slot. The movable columns are movably connected in the T-shaped slot through elastic members. A row of support column mounting holes is provided on the side of the movable column that contacts the coil.

2. The universal tool for insulating the magnetic pole coil turns according to claim 1, characterized in that: A base is fixed at the bottom of the movable column, and both ends of the base are connected to the T-slot through elastic members.

3. The universal tool for insulating the magnetic pole coil turns according to claim 2, characterized in that: The tightening member includes a bolt and a nut, the head of the bolt is located in the T-slot, and the bolt passes through the base and is connected to the nut.

4. The universal tool for insulating the magnetic pole coil turns according to claim 3, characterized in that: An elastic member on the base close to one end of the support column is hidden in the base.

5. The universal tool for insulating the magnetic pole coil turns according to any one of claims 1 to 4, characterized in that: The upper surface of the bottom plate is provided with two T-slots, and each T-slot is connected to at least two movable columns.

6. The universal tool for insulating the magnetic pole coil turns according to claim 5, characterized in that: The two T-slots on the bottom plate are arranged parallel to each other.

7. The universal tool for insulating the pole coil turns according to claim 6, characterized in that: The movable column is a square tube.

Images