Easily-installed motor punching sheet with sheet stack limiting structure

Abstract

The utility model discloses an easy-to-install motor punching sheet with a sheet stack limiting structure, which comprises a punching sheet body, an iron core hole is arranged on the outer surface of the punching sheet body in a penetrating manner, a heat dissipation groove is arranged on the outer surface of the punching sheet body in a penetrating manner, and a fixed limiting mechanism is arranged on the outer surface of the punching sheet body. And the punching sheet bodies can be accurately positioned and combined during stacking through the fixing and limiting mechanism. According to the easy-to-install motor punching sheet with the sheet stacking limiting structure, when the punching sheet bodies are assembled and stacked, the positioning grooves in the outer surfaces of the punching sheet bodies can be found, and the positioning grooves are aligned and pressed downwards, so that the positioning grooves can be inserted into the punching sheet bodies; therefore, the punching sheet bodies can be stacked neatly without deviation, a shaft and a key of a motor can directly penetrate through the key groove and the iron core hole in subsequent assembly and cannot be clamped and cannot be installed, and the punching sheet bodies can be stacked together accurately and stably.

Description

Technical Field

[0001] The utility model relates to the technical field of motor punching sheets, in particular to an easy-to-install motor punching sheet provided with a sheet stacking limiting structure. Background Art

[0002] The motor rotor is the rotating part of the motor. The motor consists of two parts, the rotor and the stator. It is a conversion device used to convert electrical energy into mechanical energy. The motor rotor is divided into a motor rotor and a generator rotor. The motor rotor is mainly made of multiple rotor punchings stacked and fixed. Punchings of different specifications are suitable for motor stators and rotors of different powers. However, when manufacturing the motor rotor, the punchings are divided into multiple individuals, and it will be difficult to completely align the punchings during assembly, making it difficult to align the stacked punchings during assembly, resulting in greater installation difficulty. Utility Model Content

[0003] The utility model aims to provide an easy-to-install motor punching sheet with a sheet stacking limiting structure to solve the problem in the above background technology that multiple punching sheets are difficult to stack and align during assembly.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an easy-to-install motor punching sheet with a sheet stacking limiting structure, comprising a punching sheet body, an iron core hole is penetrated through the outer surface of the punching sheet body, and the iron core hole and the punching sheet body are designed concentrically, a heat dissipation groove is penetrated through the outer surface of the punching sheet body, and the heat dissipation groove is designed around the iron core hole as the center of the circle, a winding post is fixedly installed on the outer surface of the punching sheet body, and the winding post is designed around the iron core hole as the center of the circle on the outer surface of the punching sheet body, an embedding groove is provided between the winding posts, and the embedding groove is designed as an inverted triangular arc, and a fixed limiting mechanism is provided on the outer surface of the punching sheet body, through which the punching sheet body can be accurately positioned and combined when stacked.

[0005] Preferably, the fixed limiting mechanism includes: a positioning groove, the positioning groove is fixedly opened on the outer surface of the punching sheet body, and the positioning groove is arranged on the outer surface of the punching sheet body with the iron core hole as the center, the positioning groove is engaged with the outer surface of the punching sheet body, and the outer surface of the punching sheet body is fitted with the outer surface of the positioning groove, and the outer surface of the punching sheet body is fixedly opened with a key groove, and the key groove is located on the inner side of the iron core hole.

[0006] By adopting the above technical scheme, when the punching sheet body is assembled, the positioning groove can be used to overlap with the punching sheet body so that the punching sheet body and the positioning groove can be engaged, so that the punching sheet bodies can be overlapped with each other and positioned for easy combined positioning, and the keyway can be used to fix the shaft again when it passes through the core hole for easy assembly.

[0007] Preferably, a fixing hole is fixedly opened on the outer surface of the punching sheet body, and the fixing hole is arranged on the outer surface of the punching sheet body around the iron core hole as the center of the circle, a positioning pin is fixedly inserted inside the fixing hole, and the side surface of the positioning pin is tightly fitted with the inner surface of the fixing hole, the two ends of the positioning pin are inclined, and the positioning pin and the fixing hole are interference fit.

[0008] By adopting the above technical solution, the locating pin can be installed into the fixing hole, and the punch body can be assembled and fixed through the interference fit between the fixing hole and the locating pin. The locating pin is designed to be inclined so that the locating pin can be better knocked into the punch body.

[0009] Preferably, an arc-shaped spring piece is arranged between the winding posts, and an elastic snap mechanism is arranged between the winding posts and the arc-shaped spring piece, and the arc-shaped spring piece is fixed in the winding post by the elastic snap mechanism, so as to protect the wound copper wire from being scratched and causing a short circuit.

[0010] By adopting the above technical solution, the arc-shaped spring piece can be placed inside the embedding groove, and the arc-shaped spring piece can prevent the burrs on the outer surface of the winding column from scratching the enameled wire and causing a short circuit.

[0011] Preferably, the elastic locking mechanism includes: a locking block, which is fixedly arranged on the outer surface of the arc-shaped spring piece, and the outer surface of the arc-shaped spring piece is in contact with the outer surface of the embedded groove, and a locking groove is arranged at one end of the winding column away from the core hole, and the locking groove is located on both sides of the winding column, and the outer surface of the locking groove is engaged with the locking block.

[0012] By adopting the above technical solution, the blocks on both sides of the arc-shaped spring piece can be inserted into the slots through the elasticity of the arc-shaped spring piece, so that the arc-shaped spring piece can be fixed in the slot.

[0013] Preferably, a mounting mechanism is provided at one end of the arc-shaped spring piece away from the core hole, through which the enameled wire can pass smoothly when passing through the punching sheet body for winding, and the arc-shaped spring piece can be adjusted and replaced according to different enameled wire diameters.

[0014] By adopting the above technical solution, the arc-shaped spring piece can be clamped and gathered through the clamping installation hole, so that the clamping blocks and the clamping slots on both sides of the arc-shaped spring piece can be disengaged, and the arc-shaped spring piece can be conveniently installed and disassembled.

[0015] Preferably, the mounting mechanism includes: a limit baffle, which is fixedly mounted on one end side surface of the arc-shaped spring piece, the limit baffle is arc-shaped, and a clamping mounting hole is provided on the outer surface of the limit baffle, and arc-shaped surfaces are provided on both side outer surfaces of the arc-shaped spring piece.

[0016] By adopting the above technical solution, the curved surfaces on both sides of the curved spring piece can make the inserted enameled wire slide into the interior of the curved spring piece along the curved surface, reducing the scratches on the enameled wire by the curved spring piece and reducing the probability of short circuit of the enameled wire. At the same time, the diameter of the enameled wire passing through can be limited by the limit baffle to adapt to the number of windings with different numbers of turns.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the easy-to-install motor punching sheet with a sheet stacking limiting structure:

[0018] 1. When assembling and stacking the punching sheet bodies, you can find the positioning grooves on the outer surface of the punching sheet bodies, align the positioning grooves with each other and press them down, so that the positioning grooves can be inserted into the inside of the punching sheet bodies, so that the punching sheet bodies can be neatly stacked and placed without offset, which is convenient for the motor shaft and key to directly pass through the keyway and the core hole during subsequent assembly without getting stuck and unable to be installed, so that the punching sheet bodies can be accurately and stably stacked together;

[0019] 2. Before winding the enameled wire around the punch body, the positioning pin needs to be pressed into the fixing hole. The inclined design at both ends of the positioning pin allows the positioning pin to quickly and automatically find the correct position when it is pressed into the fixing hole. At the same time, the fixing holes are interlocked to connect the punch body branches, so that the punch bodies are fixed to each other and will not fall apart.

[0020] 3. After the punch body is fixed, the arc spring piece can be clamped and gathered into the inserting groove through the clamping installation hole, and then the elastic force of the arc spring piece is released to make the clamping block and the clamping groove engage with each other, and the arc spring piece is fixed in the inserting groove, so that when the enameled wire is wound on the winding column, the burrs on the side surface of the punch body will not scratch the insulation layer on the outer surface of the enameled wire to cause leakage and short circuit;

[0021] 4. The arc surface and the arc spring piece can make the enameled wire passing through the winding column automatically lean toward the heat dissipation slot during winding, and be neatly arranged in the slot. The diameter of the wound enameled wire can be limited by the limit baffle so that the overly thick enameled wire cannot pass through the limit baffle and is not easy to fall out. At the same time, the arc surface can reduce the pressure on the enameled wire when passing through the corner during winding, prevent the insulation layer of the enameled wire from being cut, and reduce the probability of the enameled wire being broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front view structure of the punching plate body and the winding column of the utility model;

[0023] Figure 2 This is a schematic diagram of the front view structure of the punch body and the arc-shaped spring piece of the utility model;

[0024] Figure 3 This is a schematic diagram of the front view structure of the limit baffle and the clamping block of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the punch body and the positioning pin of the utility model;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the punch body and the arc-shaped spring piece of the utility model;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the arc-shaped spring piece and the arc-shaped surface of the utility model.

[0028] In the figure: 1. punch body; 2. keyway; 3. core hole; 4. heat dissipation groove; 5. winding column; 6. positioning groove; 7. fixing hole; 8. card slot; 9. insert slot; 10. limit baffle; 11. clamping installation hole; 12. card block; 13. arc-shaped spring piece; 14. positioning pin; 15. arc-shaped surface. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-6 The utility model provides a technical solution: an easy-to-install motor punching sheet with a sheet stacking limiting structure, comprising a punching sheet body 1, an iron core hole 3 is penetrated through the outer surface of the punching sheet body 1, and the iron core hole 3 and the punching sheet body 1 are designed concentrically, a heat dissipation groove 4 is penetrated through the outer surface of the punching sheet body 1, and the heat dissipation groove 4 is designed to surround the iron core hole 3 as the center of the circle, a winding post 5 is fixedly installed on the outer surface of the punching sheet body 1, and the winding post 5 is designed to surround the outer surface of the punching sheet body 1 with the iron core hole 3 as the center of the circle, an embedded groove 9 is provided between the winding posts 5, and the embedded groove 9 is designed to be an inverted triangular arc, and a fixed limiting mechanism is provided on the outer surface of the punching sheet body 1, through which the punching sheet body 1 can be accurately positioned and combined when stacked.

[0031] The heat dissipation slots 4 can reduce the heat generated by the rotor during operation, so that the heat can be dissipated through the heat dissipation slots 4, the temperature of the punch body 1 can be reduced, and the temperature of the motor can be dissipated to stably operate without generating high temperature.

[0032] The fixed limiting mechanism includes: a positioning groove 6, which is fixedly opened on the outer surface of the punching sheet body 1, and the positioning groove 6 is arranged on the outer surface of the punching sheet body 1 with the iron core hole 3 as the center, the positioning groove 6 is engaged with the outer surface of the punching sheet body 1, and the outer surface of the punching sheet body 1 is in contact with the outer surface of the positioning groove 6, and a key groove 2 is fixedly opened on the outer surface of the punching sheet body 1, and the key groove 2 is located on the inner side of the iron core hole 3.

[0033] When assembling the punch body 1, it is only necessary to find and align the positioning groove 6 and snap it in place, so that the positioning groove 6 and the punch body 1 can be engaged with each other and overlapped, so that the punch body 1 can be neatly stacked together without offset, which is convenient for the subsequent installation of the motor shaft through the core hole 3. At the same time, the key on the outer surface of the shaft can be engaged with the key groove 2 through the key groove 2, so that the punch body 1 will not slip and cannot rotate with the shaft when the rotor rotates, which is convenient for the stacking and installation of the punch body 1.

[0034] A fixing hole 7 is fixedly opened on the outer surface of the punch body 1, and the fixing hole 7 is arranged on the outer surface of the punch body 1 around the iron core hole 3, and a positioning pin 14 is fixedly inserted inside the fixing hole 7, and the side surface of the positioning pin 14 is tightly fitted with the inner surface of the fixing hole 7, the two ends of the positioning pin 14 are inclined, and the positioning pin 14 and the fixing hole 7 are interference fit.

[0035] After the punch body 1 is stacked, the positioning pin 14 can be pressed into the fixing hole 7. The inclined design at both ends of the positioning pin 14 allows the positioning pin 14 to automatically find the correct position when pressed into the fixing hole 7, so that the fixing hole 7 and the positioning pin 14 are fixed to each other, so that the punch body 1 will not fall apart as a whole.

[0036] An arc-shaped spring piece 13 is arranged between the winding poles 5, and an elastic clamping mechanism is arranged between the winding pole 5 and the arc-shaped spring piece 13. The arc-shaped spring piece 13 is fixed in the winding pole 5 by the elastic clamping mechanism to protect the wound copper wire from being scratched and causing a short circuit. The elastic clamping mechanism includes: a clamping block 12, which is fixedly arranged on the outer surface of the arc-shaped spring piece 13, and the outer surface of the arc-shaped spring piece 13 is in contact with the outer surface of the embedded groove 9. A clamping groove 8 is arranged at one end of the winding pole 5 away from the core hole 3, and the clamping groove 8 is located on both sides of the winding pole 5, and the outer surface of the clamping groove 8 is clamped with the clamping block 12.

[0037] Before winding the punch body 1, the block 12 is inserted into the slot 8 to fix the arc-shaped spring piece 13 in the slot 9. Then, the enameled wire can be wound on the outer surface of the winding column 5, which can reduce the probability of the burrs on the side surface of the punch body 1 scratching the enameled wire and causing a short circuit.

[0038] An installation mechanism is provided at one end of the arc spring piece 13 away from the core hole 3, through which the enameled wire can pass smoothly when passing through the punch body 1 for winding, and the arc spring piece 13 can be adjusted and replaced according to different enameled wire diameters.

[0039] The limit baffle 10 can limit the diameter of the enameled wire passing through, so that the enameled wire can move closer to the core hole 3 along the arc surface and the arc-shaped surface 15 of the limit baffle 10, so that the wound enameled wire can be neatly wound on the outer surface of the winding pole 5, and the design of the arc-shaped surface 15 can reduce the cutting of the enameled wire by the corners when the enameled wire passes through the winding pole 5, and at the same time reduce the breakage caused by excessive pulling force.

[0040] The mounting mechanism includes: a limit baffle 10, which is fixedly mounted on one end side surface of the arc-shaped spring piece 13. The limit baffle 10 is arc-shaped, and a clamping mounting hole 11 is penetrated on the outer surface of the limit baffle 10, and arc-shaped surfaces 15 are set on the outer surfaces of both sides of the arc-shaped spring piece 13.

[0041] The arc-shaped spring piece 13 can also be clamped and retracted through the clamping installation hole 11 to disengage the slot 8 and the block 12, so that the arc-shaped spring piece 13 can be removed and replaced with a limit baffle 10 of different lengths, and the limit baffles 10 and arc-shaped spring pieces 13 of different specifications and lengths can be installed and replaced to produce motor rotors of different specifications.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An easy-to-install motor punching sheet with a sheet stacking limiting structure, comprising a punching sheet body (1), an iron core hole (3) is provided through the outer surface of the punching sheet body (1), and the iron core hole (3) and the punching sheet body (1) are designed to be concentric, a heat dissipation groove (4) is provided through the outer surface of the punching sheet body (1), and the heat dissipation groove (4) is designed to surround the iron core hole (3) as the center of the circle, a winding post (5) is fixedly installed on the outer surface of the punching sheet body (1), and the winding post (5) is designed to surround the outer surface of the punching sheet body (1) with the iron core hole (3) as the center of the circle, and an insert groove (9) is provided between the winding posts (5), and the insert groove (9) is designed to be an inverted triangular arc, characterized in that: The outer surface of the punch body (1) is provided with a fixed limiting mechanism, and the fixed limiting mechanism enables the punch bodies (1) to be accurately positioned and combined when being stacked.

2. The easy-to-install motor punching sheet with a sheet stacking limiting structure according to claim 1, characterized in that: The fixed limiting mechanism comprises: a positioning groove (6), the positioning groove (6) is fixedly provided on the outer surface of the punch body (1), and the positioning groove (6) is arranged on the outer surface of the punch body (1) with the iron core hole (3) as the center of the circle, the positioning groove (6) is engaged with the outer surface of the punch body (1), and the outer surface of the punch body (1) is in contact with the outer surface of the positioning groove (6), and the outer surface of the punch body (1) is fixedly provided with a key groove (2), and the key groove (2) is located on the inner side of the iron core hole (3).

3. The easy-to-install motor punching sheet with a sheet stacking limiting structure according to claim 1, characterized in that: The outer surface of the punch body (1) is fixedly provided with a fixing hole (7), and the fixing hole (7) is arranged on the outer surface of the punch body (1) around the iron core hole (3) as the center of a circle, and a positioning pin (14) is fixedly inserted inside the fixing hole (7), and the side surface of the positioning pin (14) is tightly fitted with the inner surface of the fixing hole (7), the two ends of the positioning pin (14) are inclined, and the positioning pin (14) and the fixing hole (7) are interference fit.

4. The easy-to-install motor punching sheet with a sheet stacking limiting structure according to claim 1, characterized in that: An arc-shaped spring piece (13) is arranged between the winding posts (5), and an elastic snap-fit ​​mechanism is provided between the winding posts (5) and the arc-shaped spring piece (13). The arc-shaped spring piece (13) is fixed inside the winding posts (5) by the elastic snap-fit ​​mechanism, thereby protecting the wound copper wire from scratches that may cause a short circuit.

5. The easy-to-install motor punching sheet with a sheet stacking limiting structure according to claim 4, characterized in that: The elastic locking mechanism comprises: a locking block (12), the locking block (12) being fixedly arranged on the outer surface of the arc-shaped spring sheet (13), and the outer surface of the arc-shaped spring sheet (13) is in contact with the outer surface of the inserting groove (9), and a locking groove (8) is arranged at one end of the winding column (5) away from the core hole (3), and the locking groove (8) is located on both sides of the winding column (5), and the outer surface of the locking groove (8) is in contact with the locking block (12).

6. The easy-to-install motor punching sheet with a sheet stacking limiting structure according to claim 4, characterized in that: An installation mechanism is provided at one end of the arc-shaped spring piece (13) away from the core hole (3), through which the enameled wire can pass smoothly when passing through the punching sheet body (1) for winding, and the arc-shaped spring piece (13) can be adjusted and replaced according to different enameled wire diameters.

7. The easy-to-install motor punching sheet with a sheet stacking limiting structure according to claim 6, characterized in that: The mounting mechanism comprises: a limit baffle (10), the limit baffle (10) being fixedly mounted on a side surface of one end of an arc-shaped spring piece (13), the limit baffle (10) being arc-shaped, and a clamping mounting hole (11) being provided through the outer surface of the limit baffle (10), and arc-shaped surfaces (15) being provided on the outer surfaces of both sides of the arc-shaped spring piece (13).

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