Motor rotor and rotor processing technology

Abstract

The application relates to the technical field of motor rotors, in particular to a motor rotor which comprises a rotor shell, the inner side of the rotor shell is provided with a mounting column, the inner side of the mounting column is provided with a rotor shaft in a plug-in mode, the inner side of the mounting column is provided with a plurality of limiting insertion grooves, the inner side of the limiting insertion grooves is provided with limiting insertion sheets in a plug-in mode, one side of the limiting insertion sheets is fixedly connected to the outer side of the rotor shaft, one side of the limiting insertion sheets is provided with detachable electromagnetic windings, a connecting strip is plugged into one side of the limiting insertion sheets, one side of the connecting strip is provided with a plurality of I-shaped grooves, the inner side of the I-shaped grooves is provided with rubber sleeves in a plug-in mode, the inner side of the rubber sleeves is provided with a plurality of springs, the two sides of the rubber sleeves are both provided with clamping plates, one side of the rubber sleeves is fixedly provided with an insertion plate, one side of the insertion plate is provided with winding blocks in a plug-in mode. The motor rotor has the advantages that the internal winding position can be disassembled and replaced when overloading and burning occur, the situation that the whole rotor is discarded after burning is avoided, the rotor as a whole can be disassembled and assembled, and the rotor is not integrally arranged.

Description

Technical Field

[0001] This invention relates to the field of motor rotor technology, and in particular to a motor rotor and rotor processing technology. Background Technology

[0002] In layman's terms, the motor rotor is the rotating part of a motor; it's also the rotating component. A motor consists of two parts: the rotor and the stator. It's a device used to convert electrical energy into mechanical energy and vice versa. Motor rotors are divided into electric motor rotors and generator rotors, and further categorized into two types based on their rotation mechanism: internal rotor and external rotor. In an internal rotor rotor, the core of the motor is the rotating body, outputting torque (for an electric motor) or receiving energy (for a generator). In an external rotor rotor rotor, the outer body of the motor is the rotating body. These different methods facilitate applications in various situations.

[0003] Existing motor rotors are all integrated units, which are inconvenient to disassemble and reassemble. If an overload occurs and the rotor burns out, the entire motor rotor needs to be replaced. Discarding the entire rotor is costly and wasteful. The integrated structure makes maintenance difficult, and most of them are injection molded, resulting in a short service life. Therefore, we propose a motor rotor and rotor processing technology. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing motor rotors, which are all integrated units, making them inconvenient to disassemble and assemble. If an overload occurs and the rotor burns out, the entire motor rotor needs to be replaced, resulting in high costs and unnecessary waste. The integrated structure also makes maintenance difficult, and most of them are injection molded, leading to a short service life. This invention proposes a motor rotor and rotor processing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design an electric motor rotor, including a rotor housing, an inner mounting column on the inner side of the rotor housing, a rotor shaft inserted into the inner side of the mounting column, a plurality of limiting slots on the inner side of the mounting column, limiting inserts inserted into the inner side of the limiting slots, one side of the limiting inserts being fixedly connected to the outer side of the rotor shaft, and a detachable electromagnetic winding on one side of the limiting inserts.

[0007] Preferably, the detachable electromagnetic winding includes: a connecting strip, which is inserted into one side of the limiting insert, a plurality of I-shaped grooves on one side of the connecting strip, a rubber sleeve inserted into the inner side of the I-shaped grooves, a plurality of springs on the inner side of the rubber sleeve, clamps on both sides of the rubber sleeve, an insert plate fixedly provided on one side of the rubber sleeve, and a winding block inserted into one side of the insert plate.

[0008] Preferably, a top cover is bolted to the upper side of the rotor housing, and a bottom cover is bolted to the lower side of the rotor housing.

[0009] Preferably, a plurality of elastic plates are fixedly provided on the lower side of the top cover, and a pressure block is fixedly provided on the lower side of the elastic plates. A connecting groove is provided at the position opposite to the pressure block of the rotor housing, and a permanent magnet is inserted into the inner side of the connecting groove.

[0010] Preferably, a plurality of magnetic strips are fixedly provided on the outer side of the mounting column.

[0011] Preferably, one side of the bottom cover is provided with several diamond-shaped air holes, a turbine blade is fixedly provided on the lower side of the bottom cover, a spring buckle is fixedly provided on the side of the turbine blade near the bottom cover, one side of the spring buckle is inserted into one side of the bottom cover, and one side of the top cover is provided with several hexagonal air holes.

[0012] Preferably, both the rhomboid and hexagonal air vents are provided with waterproof and breathable membranes, and both the top cover and the bottom cover are provided with expansion sealing rings on one side.

[0013] A motor rotor machining process, the specific steps of which are as follows:

[0014] S1. First, the rotor housing is formed by forging, die casting, and drilling.

[0015] S2. Then, the mounting column is forged and milled to form the mounting column, which is then inserted and installed inside the rotor housing.

[0016] S3. Next, install the detachable electromagnetic winding on the limiting plate on the outside of the rotor shaft.

[0017] S4. Finally, use the limiting insert on the outside of the rotor shaft to insert into the limiting slot on the inside of the mounting column.

[0018] The present invention proposes a motor rotor with the following advantages: by setting connecting strips, I-beam slots, rubber sleeves, springs, clamps, inserts, and winding blocks, it can provide a function for quick disassembly and assembly of a winding, facilitating maintenance and replacement at designated locations. By setting a rotor housing, mounting column, rotor shaft, limit slots, limit inserts, top cover, and bottom cover, it can provide a detachable rotor, making disassembly and assembly simple and quick. The internal winding positions of this motor rotor can be disassembled and assembled, and can be disassembled and replaced in case of overload burnout, avoiding the situation of discarding the entire rotor after burnout. The rotor as a whole can be disassembled and assembled, and is not an integrated design. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall front axonometric structure of a motor rotor proposed in this invention;

[0020] Figure 2This is a schematic diagram of the overall upper side cross-sectional isometric structure of a motor rotor proposed in this invention;

[0021] Figure 3 This invention proposes a motor rotor. Figure 2 A schematic diagram of the structure of A in the middle;

[0022] Figure 4 This is a schematic diagram of the explosion-type structure of an electric motor rotor proposed in this invention;

[0023] Figure 5 This is a partial structural diagram of a motor rotor proposed in this invention;

[0024] Figure 6 This is a schematic diagram of the blast-cut structure of an electric motor rotor proposed in this invention.

[0025] In the diagram: 1 Rotor housing, 2 Mounting column, 3 Rotor shaft, 4 Limiting slot, 5 Limiting insert, 6 Top cover, 7 Bottom cover, 8 Connecting strip, 9 I-beam groove, 10 Rubber sleeve, 11 Spring, 12 Clamping plate, 13 Inserting plate, 14 Winding block, 15 Connecting groove, 16 Permanent magnet, 17 Elastic plate, 18 Pressure block. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Reference Figure 1-6 An electric motor rotor includes a rotor housing 1. An inner mounting post 2 is provided on the inner side of the rotor housing 1. A rotor shaft 3 is inserted into the inner side of the mounting post 2. Several limiting slots 4 are provided on the inner side of the mounting post 2. Limiting inserts 5 are inserted into the inner side of the limiting slots 4. One side of the limiting insert 5 is fixedly connected to the outer side of the rotor shaft 3. A detachable electromagnetic winding is provided on one side of the limiting insert 5. Using the limiting inserts 5 on the outer side of the rotor shaft 3, the limiting inserts 5 are inserted into the limiting slots 4 on the inner side of the mounting post 2. When the rotor shaft 3 rotates, it can drive the mounting post 2 to rotate. In conjunction with the detachable electromagnetic winding, it is easy to install and replace, and is not a one-piece structure, making replacement and maintenance convenient.

[0028] To provide a detachable electromagnetic winding function for easy replacement and maintenance, a detachable electromagnetic winding is provided, comprising: a connecting strip 8, which is inserted into one side of the limiting insert 5; several I-shaped slots 9 on one side of the connecting strip 8; rubber sleeves 10 inserted into the inner side of the I-shaped slots 9; several springs 11 on the inner side of the rubber sleeves 10; clamping plates 12 on both sides of the rubber sleeves 10; and an insert plate 13 fixedly attached to one side of the rubber sleeves 10. A winding block 14 is inserted into one side of the insert plate 13. During installation, first insert the connecting strip 8 into one side of the limiting insert 5, then squeeze the clamping plate 12 against the rubber sleeve. The spring 11 inside the 10 is squeezed, causing the rubber sleeve 10 to be compressed and then inserted into the I-shaped groove 9 on one side of the connecting bar 8. The pressure of the finger on the clamp 12 is released, and the rebound force of the spring 11 causes the rubber sleeve 10 to fill the I-shaped groove 9 (the opening diameter of the I-shaped groove 9 is smaller than the internal diameter of the I-shaped groove 9), thereby achieving a limiting function. Then the winding block 14 is inserted into the plug plate 13 to complete the installation. The winding block 14 is formed by winding pure copper wire, which improves the service life. There are five I-shaped grooves 9 on the connecting bar 8, which provides an electromagnetic winding for easy disassembly and assembly of the motor rotor, making it convenient for replacement and maintenance.

[0029] To improve the stability of the internal connection and prevent internal loosening, a top cover 6 is bolted to the upper side of the rotor housing 1, and a bottom cover 7 is bolted to the lower side of the rotor housing 1. A clamping strip is fixedly provided on the lower side of the top cover 6 and at the position opposite to the limiting slot 4. The clamping strip matches the limiting slot 4 and abuts against the limiting insert 5.

[0030] To provide a convenient disassembly function for the permanent magnet 16, several elastic plates 17 are fixedly provided on the lower side of the top cover 6, and pressure blocks 18 are fixedly provided on the lower side of the elastic plates 17. The rotor housing 1 and the pressure blocks 18 are provided with connecting grooves 15 at the positions opposite to each other, and the permanent magnet 16 is inserted into the inner side of the connecting grooves 15.

[0031] To facilitate the use of winding blocks at various positions, several magnetic shielding strips are fixedly provided on the outer side of the mounting column 2.

[0032] To provide a heat dissipation function, the bottom cover 7 has several diamond-shaped air holes on one side, and a turbine blade is fixedly installed on the lower side of the bottom cover 7. A spring clip is fixedly installed on the side of the turbine blade near the bottom cover 7, and one side of the spring clip is inserted into the side of the bottom cover 7. The top cover 6 has several hexagonal air holes on one side. When rotated, the turbine blade is driven to rotate, and the turbine blade performs a suction operation, introducing airflow into the hexagonal air holes and then exhausting it out through the diamond-shaped air holes, thereby providing a wind-cooling function.

[0033] To provide a waterproof function, waterproof and breathable membranes are installed inside both the diamond-shaped and hexagonal air vents, and expansion sealing rings are installed on one side of the top cover 6 and the bottom cover 7.

[0034] A motor rotor machining process, the specific steps of which are as follows:

[0035] S1. First, steel is forged at high temperature, and then die-cast to form a cylindrical structure. The die-cast product is then drilled using a drilling device to form the rotor housing 1.

[0036] S2. Then, the steel is forged at high temperature, and after forging, it is die-cast to form a cylindrical structure. The structure is then milled using a milling machine to form the mounting column 2, and the mounting column 2 is inserted and installed in the rotor housing 1.

[0037] S3. Next, install the detachable electromagnetic winding on the limiting insert 5 on the outside of the rotor shaft 3.

[0038] S4. Finally, the limiting insert 5 on the outside of the rotor shaft 3 is inserted into the limiting slot 4 on the inside of the mounting column 2.

[0039] When assembling this invention, firstly, the connecting strip 8 is inserted into one side of the limiting insert 5. Then, the fingers squeeze the clamp 12 to compress the spring 11 inside the rubber sleeve 10, causing the rubber sleeve 10 to be compressed and inserted into the I-shaped groove 9 on one side of the connecting strip 8. The pressure of the fingers on the clamp 12 is released, and the rebound force of the spring 11 causes the rubber sleeve 10 to fill the I-shaped groove 9. Then, the winding block 14 is inserted into the insert 13 to complete the installation. The rotor shaft 3 with the winding block 14 installed is inserted into the mounting column 2, utilizing the limiting insert 5 and the limiting... The permanent magnet 16 is then inserted into the connecting groove 15 on the outside of the rotor housing 1 by fitting the slots 4 together. Next, the top cover 6 and the bottom cover 7 are aligned and installed on the upper and lower sides of the rotor housing 1 respectively, and connected and fixed with hexagonal bolts. After installation, an integral motor rotor is formed. This motor rotor is easy and quick to disassemble and assemble, and the internal parts can be disassembled and replaced individually. When the winding is overloaded and burned, the specified winding can be replaced according to the location of the burn. Compared with traditional motors, it can reduce cost waste.

[0040] The entire outer surface of the motor rotor is coated with a wear-resistant coating. This wear-resistant coating is a new type of functional coating with special properties, exhibiting excellent wear resistance. For example, when this wear-resistant coating is applied to glass and lenses, the glass and lenses will no longer be scratched. In the machinery industry, the use of wear-resistant functional coating technology to treat the metal surfaces of key mechanical components can improve the wear resistance, hardness, and service life of mechanical equipment.

[0041] It should be noted that drilling equipment refers to a general term for equipment used to process holes in solid materials. Common drilling equipment includes electric drills and drilling machines. This invention uses a drilling machine, which is a machine tool that mainly uses a drill bit to process holes in a workpiece. Typically, the rotation of the drill bit is the main motion, and the axial movement of the drill bit is the feed motion. Drilling machines have a simple structure and relatively low machining accuracy. They can drill through holes and blind holes. By changing special tools, they can perform reaming, countersinking, boring, or tapping. During machining, the workpiece remains stationary while the tool moves, aligning the tool center with the hole center and rotating the tool (main motion). The characteristic of a drilling machine is that the workpiece is stationary while the tool rotates.

[0042] A milling machine is a CNC milling machine, which is an automated machining equipment developed from a general milling machine. The machining processes of the two are basically the same, and their structures are also somewhat similar. CNC milling machines are further divided into two main categories: those without a tool magazine and those with a tool magazine. CNC milling machines with a tool magazine are also called machining centers.

[0043] Both forging and die casting are carried out using existing technologies.

[0044] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An electric motor rotor, comprising a rotor housing (1), characterized in that, The inner side of the rotor housing (1) is provided with a mounting column (2), and a rotor shaft (3) is inserted into the inner side of the mounting column (2). The inner side of the mounting column (2) is provided with several limiting slots (4), and a limiting insert (5) is inserted into the inner side of the limiting slots (4). One side of the limiting insert (5) is fixedly connected to the outer side of the rotor shaft (3). One side of the limiting insert (5) is provided with a detachable electromagnetic winding, which includes a connecting strip (8). The connecting strip (8) is inserted into the rotor housing (1). Connected to one side of the limiting insert (5), the connecting strip (8) has several I-shaped grooves (9) on one side, a rubber sleeve (10) is inserted into the inner side of the I-shaped groove (9), several springs (11) are provided on the inner side of the rubber sleeve (10), clamps (12) are provided on both sides of the rubber sleeve (10), a plug plate (13) is fixedly provided on one side of the rubber sleeve (10), a winding block (14) is inserted into one side of the plug plate (13), and several magnetic strips are fixedly provided on the outer side of the mounting column (2).

2. The motor rotor according to claim 1, characterized in that, The upper side of the rotor housing (1) is provided with a top cover (6) by bolt connection, and the lower side of the rotor housing (1) is provided with a bottom cover (7) by bolt connection.

3. A motor rotor according to claim 2, characterized in that, The top cover (6) is fixedly provided with several elastic plates (17) on the lower side, and a pressure block (18) is fixedly provided on the lower side of the elastic plate (17). The rotor housing (1) and the pressure block (18) are provided with connecting grooves (15) at opposite positions. A permanent magnet (16) is inserted into the inner side of the connecting groove (15).

4. A motor rotor machining process, characterized in that, The aforementioned motor rotor machining process is applicable to the motor rotor according to any one of claims 1-3, and the specific steps of the motor rotor machining process are as follows: S1. First, the rotor housing is formed by forging, die casting, and drilling (1). S2. Then forging and milling to form the mounting column (2), and the mounting column (2) is inserted and installed in the rotor housing (1); S3. Next, install the detachable electromagnetic winding on the limiting insert (5) on the outside of the rotor shaft (3); S4. Finally, the limiting insert (5) on the outside of the rotor shaft (3) is inserted into the limiting slot (4) on the inside of the mounting column (2).

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