Tool for cutting insulation paper of stator slot of wind driven generator

Abstract

The utility model discloses a tool for cutting insulation paper of a stator slot of a wind driven generator. The tool comprises a tool rest, a blade and a handle, the handle is connected with the knife rest; the knife rest comprises a top frame, a middle frame and a bottom frame; the top frame comprises two strip-shaped top plates arranged at intervals, and the two sides of the top of the middle frame are fixedly connected with the two strip-shaped top plates correspondingly. The bottom side face of the middle frame is fixedly connected with a bottom frame, a gap used for installing a blade is formed between the bottom frame and the middle frame, and a first paper feeding gap and a second paper feeding gap used for embedding stator slot insulation paper are formed in the bottom frame in the length direction of the bottom frame; a mounting hole for mounting a blade is formed in the middle frame; the blade is arranged in a gap between the bottom frame and the middle frame, and the blade is connected with a mounting hole in the middle frame through a fastener; the tool can meet the requirement that the cut slot paper is lower than the outer surface of an iron core, the cutting size can be fixed, two pieces of slot paper on the two sides of a single slot can be cut at the same time, the production efficiency is improved, the cutting size is controlled, and the safety problem caused by directly using an art knife for cutting is avoided.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, specifically a tooling for cutting insulation paper for stator slots of wind turbine generators. This tooling can efficiently and accurately cut the slot insulation paper while ensuring the cutting dimensions. Background Technology

[0002] In the stator components of wind turbine generators, after the coils are unwound, the excess slot insulation paper (referred to as slot paper) needs to be cut to the required size so that it can be folded to fit the coil during the subsequent slot wedge process. Traditional cutting tools can only cut the part of the slot insulation paper that protrudes from the core surface, or a utility knife with a backing plate can be used. These two cutting methods will cause the following problems:

[0003] 1. Traditional cutting tools can only cut products where the groove paper protrudes from the surface of the iron core, and cannot be used universally for new products where the groove paper is lower than the surface of the iron core;

[0004] 2. Although a utility knife with a cutting mat can be used, it can only cut the groove paper on one side. The groove paper on both sides of a single groove needs to be cut separately, which is inefficient.

[0005] 3. Using a utility knife with a backing plate presents safety concerns. One is the potential risk of personal injury, and the other is the risk of accidental cuts to the product's insulation. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a tooling for cutting the insulating paper of the stator slot of a wind turbine generator, which addresses the shortcomings of the prior art. This tooling can meet the requirement that the cut slot paper is lower than the outer surface of the iron core; it can cut two slot papers on both sides of a single slot at the same time, improving production efficiency; and it avoids the safety problem of directly using a utility knife for cutting.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0008] A tooling for cutting insulation paper for wind turbine stator slots includes a knife holder, a blade, and a handle;

[0009] The handle is fixedly connected to the tool holder;

[0010] The tool holder includes a top frame, a middle frame, and a bottom frame. The top frame includes two spaced-apart strip top plates, and the two sides of the middle frame are fixedly connected to the two strip top plates respectively.

[0011] A base frame is fixedly connected to the bottom side of the intermediate frame. A gap for installing the blade is provided between the base frame and the intermediate frame. The base frame has two paper feeding slots, one for embedding the stator slot insulation paper, along its length. The paper feeding slots are strip-shaped and parallel to each other. Both paper feeding slots are connected to the gap for installing the blade.

[0012] The intermediate frame has mounting holes for mounting blades; the blades are placed in the gap between the base frame and the intermediate frame, and the blades are connected to the mounting holes on the intermediate frame by fasteners.

[0013] As a further improvement of this utility model, the handle is welded and fixed between the two strip-shaped top plates of the tool holder.

[0014] As a further improvement of this utility model, the blade is connected to the mounting hole on the intermediate frame by a set screw.

[0015] As a further improvement of the present invention, paper feeding gap one and paper feeding gap two divide the base frame into a left frame, a middle frame and a right frame, and guide slopes are provided on the left frame and the right frame in the direction of the middle frame.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention utilizes M6 slotted set screws to install the blade onto the tool holder. The handle is welded and fixed to the tool holder for handheld use. In use, the insulating paper on both sides of the core slot (containing a coil with insulating paper between the coil and the core) is aligned and placed into the corresponding paper feed slots one and two of the tool holder. During the cutting process, the protruding parts below the top frame (i.e., the middle and bottom frames) are engaged in the core slot. The two strip-shaped top plates of the top frame are placed on the core surface on both sides of the core slot. Then, the blade slides along the direction the insulating paper needs to be cut, cutting the entire slotted paper. The cutting is complete after the blade has slid across the entire core slot. This fixture ensures that the cut paper is below the outer surface of the core and can fix the cutting size. It can simultaneously cut two pieces of paper on both sides of a single slot, improving production efficiency, controlling cutting size, and avoiding the safety issues associated with directly using a utility knife.

[0018] In summary, this utility model's tooling can cut the slot paper below the core surface, solving the problem of traditional paper cutters being unable to cut the slot paper below the core surface in new products. The tooling provides accurate positioning, ensuring the required dimensions of the overlapping portion after folding. It allows simultaneous cutting of both sides of a single slot, significantly improving cutting efficiency and increasing production productivity. The handle allows the operator to grip and control the cutting dimensions, avoiding potential safety issues associated with using a utility knife and the risk of accidental cuts to the product insulation. The tooling has low manufacturing costs, high efficiency, and convenient cutting; it also offers high safety, ensuring both personnel safety and product quality. Attached Figure Description

[0019] Figure 1 A cross-sectional view of the tooling used for cutting insulation paper for the stator slots of a wind turbine.

[0020] Figure 2 A schematic diagram of the handle structure in the tooling for cutting insulation paper for the stator slots of a wind turbine generator.

[0021] Figure 3 The main view of the tool holder in the tooling for cutting insulation paper for the stator slots of a wind turbine generator.

[0022] Figure 4 Rear view of the tool holder in the tooling for cutting insulation paper for wind turbine stator slots.

[0023] Figure 5 for Figure 4 CC cross-section view.

[0024] Figure 6 A top view of the tool holder in the tooling for cutting insulation paper for wind turbine stator slots.

[0025] Figure 7 A schematic diagram of the blade structure in a tooling used for cutting insulation paper for wind turbine stator slots.

[0026] Figure 7 (a) is the front view of the blade in the tooling for cutting the insulation paper of the stator slot of a wind turbine generator.

[0027] Figure 7 (b) is a top view of the blade in the tooling for cutting the insulating paper of the stator slot of a wind turbine generator. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0029] like Figure 1 As shown, a tooling for cutting insulation paper for wind turbine stator slots includes a knife holder 1, a blade 2, and a handle 3.

[0030] The handle 3 is fixedly connected to the tool holder 1. The structure of the handle 3 is as follows: Figure 2 As shown.

[0031] like Figure 3-6 As shown, the tool holder 1 includes a top frame, an intermediate frame 102 and a bottom frame 103 arranged sequentially from top to bottom. The top frame includes two spaced strip top plates 101. The two sides of the intermediate frame 102 are fixedly connected to the two strip top plates 101 respectively. The bottom side of the intermediate frame 102 protrudes from one side of the strip top plate 101.

[0032] A base frame 103 is fixedly connected to the bottom side of the intermediate frame 102. A gap 104 for installing the blade 2 is provided between the base frame 103 and the intermediate frame 102. The base frame 103 has a paper feeding slot 105 and a paper feeding slot 2 106 for embedding the stator slot insulation paper along its length direction. The paper feeding slot 105 and the paper feeding slot 2 106 are strip-shaped and parallel to each other. Both the paper feeding slot 105 and the paper feeding slot 2 106 are connected to the gap 104 for installing the blade 2.

[0033] The intermediate frame 102 has mounting holes 107 for mounting the blade 2. The blade 2 is placed in the gap 104 between the base frame 103 and the intermediate frame 102, and the blade 2 is connected to the mounting holes 107 on the intermediate frame 102 by fasteners.

[0034] In this embodiment, the handle 3 is welded and fixed between the two strip-shaped top plates 101 of the tool holder 1.

[0035] In this embodiment, the blade 2 has the following structure: Figure 7 As shown, the blade 2 is connected to the mounting hole 107 on the intermediate frame 102 by a set screw 4.

[0036] In this embodiment, the base frame 103 is divided into a left frame 108, a middle frame 109, and a right frame 110 by paper feeding slot one 105 and paper feeding slot two 106. Guide ramps 111 are provided on both the left frame 108 and the right frame 110 in the direction closest to the middle frame 109. The guide ramps 111 serve a guiding function, facilitating the entry of the slotted insulating paper into paper feeding slot one 105 or paper feeding slot two 106.

[0037] The blade holder 1 is used to position the groove paper for cutting to the required length and limit the cutting groove paper; the blade 2 is used to cut the cutting groove paper; the handle 3 is used for the operator to hold and operate.

[0038] The working principle of this utility model is as follows: The blade 2 is installed on the tool holder 1 using an M6 slotted set screw. The handle 3 is welded and fixed to the tool holder 1 for handheld use. When in use, the slot paper on both sides of the iron core slot (containing a coil, with slot insulating paper between the coil and the iron core) is aligned with the guide slope 111 and placed into the corresponding paper feeding gap 105 and paper feeding gap 106 of the tool holder. When cutting and sliding, the protruding part below the top frame (i.e., the middle frame 102 and the bottom frame 103) is inserted into the iron core slot. The two strip-shaped top plates 101 of the top frame are placed on the iron core surface on both sides of the iron core slot. One end of the slot paper is directly opposite the blade head of the blade 2. Then, it slides along the direction in which the slot insulating paper needs to be cut, so that the slot paper is cut by the blade 2. That is, the blade 2 cuts the entire slot paper. The cutting is completed after sliding through the entire iron core slot. This tooling set can meet the requirement that the grooved paper is lower than the outer surface of the iron core after cutting and can fix the cutting size. It can cut two grooved papers on both sides of a single groove at the same time, improving production efficiency, controlling the cutting size, and avoiding the safety issues of directly using a utility knife for cutting.

[0039] The tooling for cutting the insulating paper for the stator slots of the wind turbine generator has low manufacturing cost, high work efficiency, convenient cutting, and high safety, ensuring product quality while guaranteeing personnel safety.

[0040] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection of this utility model is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.

Claims

1. A tool for cutting wind power generator stator slot insulation paper, characterized in that, The utility model relates to a cutting tool, which comprises a holder, a blade and a handle. The handle is fixedly connected with the holder. The holder comprises a top holder, a middle holder and a bottom holder. The bottom side of the middle holder is fixedly connected with the bottom holder, and a gap for mounting the blade is arranged between the bottom holder and the middle holder. Paper slot one and paper slot two are arranged on the bottom holder along the length direction of the bottom holder for embedding stator slot insulation paper.

2. The tooling for cutting of wind generator stator slot insulation paper according to claim 1, characterized in that, The blade is arranged in the gap between the bottom holder and the middle holder, and the blade and the mounting hole on the middle holder are connected through a fastener.

3. The tooling for cutting of wind generator stator slot insulation paper according to claim 1, characterized in that, The handle is fixedly connected between the two strip-shaped top plates of the holder.

4. The tooling for cutting of wind generator stator slot insulation paper according to claim 1, characterized in that, The blade and the mounting hole on the middle holder are connected through a set screw. Paper slot one and paper slot two divide the bottom holder into a left holder, a middle holder and a right holder. The left holder and the right holder are both provided with a guide inclined surface near the middle holder.

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