Direct current motor with an aluminum alloy shell

Abstract

This utility model relates to the field of DC motors and discloses an aluminum alloy shell internal drive DC motor, including an internal drive DC motor, a motor rotor rotatably mounted inside the internal drive DC motor, two sets of sealing plates slidably mounted between the inner walls on both sides of the internal drive DC motor, an output shaft slidably sleeved at the end of the motor rotor, a positioning strip fixed on the internal drive DC motor, a limiting disc sleeved on the outer wall of the output shaft, a synchronization groove opened at the end of the output shaft, and a disassembly assembly. When it is necessary to disassemble the output shaft, only two sets of fixing screws need to be removed by turning with a screwdriver, and then the two sets of limiting strips are pulled upward by the linkage plate, so that the bottom end of the limiting strips disengages from the positioning hole and side groove on the positioning strip. Then, the two sets of sealing plates are removed from inside the motor, so that the end of the output shaft is disengaged from the motor rotor, and the output shaft can be easily disassembled. The disassembly process of this motor is simple and quick, greatly improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of DC motors, specifically an internal drive DC motor with an aluminum alloy housing. Background Technology

[0002] In modern industry and daily life, electric motors, as key devices for converting electrical energy into mechanical energy, are widely used in various mechanical equipment, household appliances, and transportation vehicles. Currently, most internal drive DC motors on the market use a fixed connection or a simple key connection between the output shaft and the motor rotor. While this traditional connection method meets basic requirements during normal motor operation, it presents many inconveniences in special circumstances, such as when the motor needs maintenance or repair, or when the output shaft needs replacement due to wear and damage from long-term use. For internal drive DC motors with fixed or simple key connections, disassembling the output shaft often requires specialized tools and a significant amount of time and effort to remove the motor housing, rotor, and other related components. This process is cumbersome and inefficient. Moreover, improper operation during disassembly can easily damage other parts of the motor, increasing maintenance costs. Therefore, we propose an aluminum alloy housing internal drive DC motor. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides an aluminum alloy housing internal drive DC motor, which solves the aforementioned problems.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: an aluminum alloy shell internal drive DC motor, comprising an internal drive DC motor, a motor rotor rotatably mounted inside the internal drive DC motor, two sets of sealing plates slidably mounted between the inner walls of the two sides of the internal drive DC motor, an output shaft slidably sleeved at the end of the motor rotor, a positioning strip fixedly provided at one end of the internal drive DC motor near the bottom, an annular limiting disc sleeved on the outer wall of the output shaft, and a synchronization groove provided at the end of the output shaft, further comprising:

[0005] The disassembly assembly, located on the internal drive DC motor, is used to disassemble the output shaft.

[0006] Preferably, horizontal limiting strips are fixedly connected between the inner walls of the two sides of the internal drive DC motor, respectively, near the top and near the bottom, and one side of each limiting strip is in contact with the side of the sealing plate.

[0007] Preferably, the outer wall of the motor rotor is fixed with four sets of synchronized protrusions arranged in a cross shape near the end position, and the output shaft is provided with a synchronized groove near the end of the motor rotor. The end of the motor rotor is slidably inserted into the synchronized groove. The inner wall of the synchronized groove is provided with four sets of synchronized grooves that are adapted to the synchronized protrusions. The four sets of synchronized protrusions are slidably inserted into the four sets of synchronized grooves respectively.

[0008] Preferably, the disassembly assembly includes a circular groove, an arc groove, and a limiting disc. A half-circular groove is provided at the middle position of each side of the two sets of sealing plates that are close to each other. A half-circular arc groove is provided on the inner wall of each set of circular grooves. The output shaft is rotatably connected between the two sets of circular grooves, and the limiting disc is rotatably installed between the two sets of arc grooves.

[0009] Preferably, the disassembly assembly further includes a side groove, a limiting strip, a linkage plate, a component plate, and fixing screws. The two sets of sealing plates are provided with side grooves on the opposite sides. A limiting strip is slidably installed in each of the two sets of side grooves. The top of each of the two sets of limiting strips extends beyond the top of the internal drive DC motor, and a linkage plate is fixedly connected between the tops of the two sets of limiting strips. A horizontal component plate is fixedly connected to one side of the linkage plate corresponding to the top of the internal drive DC motor. Two sets of fixing screws are threadedly connected to the top of the component plate, and the bottoms of the two sets of fixing screws are threadedly connected to the top of the internal drive DC motor through the component plate.

[0010] Preferably, one side of each of the two sets of limiting strips is slidably engaged in the two sets of side grooves, the sides of the two sets of sealing plates that are close to each other are tightly fitted, and the sides of the two sets of sealing plates that are far from each other are respectively fitted to the inner walls of the two sides of the internal drive DC motor.

[0011] Preferably, the top of the positioning strip is provided with positioning holes near both ends, and the bottom ends of the two sets of limiting strips are slidably inserted into the two sets of positioning holes.

[0012] Compared with the prior art, this utility model provides an internally driven DC motor with an aluminum alloy shell, which has the following advantages:

[0013] 1. This aluminum alloy-cased DC motor allows for easy disassembly of the output shaft. Simply use a screwdriver to remove two sets of fixing screws, then pull up the two sets of retaining clips via the linkage plate. This disengages the bottom of the retaining clips from the positioning holes and side grooves on the positioning strip. Afterward, remove the two sets of sealing plates from inside the motor to detach the end of the output shaft from the motor rotor, making disassembly easy. Compared to traditional methods that require specialized tools and significant time and effort to remove the motor casing, rotor, and other components, this motor offers a simple and quick disassembly process, greatly improving work efficiency.

[0014] 2. This aluminum alloy-cased DC motor features four sets of synchronizing protrusions on the rotor that insert into synchronizing grooves within the synchronizing slots at the output shaft end, enabling the output shaft to effectively rotate synchronously with the motor rotor. Simultaneously, as the output shaft rotates between the circular grooves on the two sets of sealing plates, a limiting disc rotates within the arc grooves of both sets of circular grooves, further ensuring the stability of the output shaft's rotation. Furthermore, two sets of limiting strips and limiting clips are inserted into the side grooves to clamp the two sets of sealing plates, effectively preventing displacement of the output shaft during rotation. This ensures the stability and reliability of the output shaft during rotation, improving the overall performance and service life of the motor. Attached Figure Description

[0015] Figure 1 This is a side view of the present invention.

[0016] Figure 2 This is a cross-sectional schematic diagram of the internal drive DC motor of this utility model;

[0017] Figure 3 This is a schematic diagram of the motor rotor and the components on the output shaft of this utility model;

[0018] Figure 4 This is a schematic diagram of the restriction strip of this utility model;

[0019] Figure 5 This is a schematic diagram of the circular groove, arc groove, and limiting disc of this utility model.

[0020] In the diagram: 1. Internal drive DC motor; 2. Motor rotor; 3. Sealing plate; 4. Output shaft; 5. Restriction strip; 6. Positioning strip; 7. Positioning hole; 8. Synchronization protrusion; 9. Synchronization groove; 10. Synchronization recess; 11. Side groove; 12. Circular groove; 13. Arc groove; 14. Restriction disc; 15. Restriction clip; 16. Linkage plate; 17. Component plate; 18. Fixing screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5An aluminum alloy-cased internal drive DC motor includes an internal drive DC motor 1, a motor rotor 2 rotatably mounted inside the internal drive DC motor 1, two sets of sealing plates 3 slidably mounted between the inner walls on both sides of the internal drive DC motor 1, an output shaft 4 slidably sleeved at the end of the motor rotor 2, a positioning strip 6 fixedly provided at one end of the internal drive DC motor 1 near the bottom, an annular limiting disc 14 sleeved on the outer wall of the output shaft 4, and a synchronization groove 9 opened at the end of the output shaft 4. It also includes:

[0023] The disassembly assembly, which is mounted on the internal drive DC motor 1, is used to disassemble the output shaft 4.

[0024] Horizontal limiting strips 5 are fixed between the inner walls of the two sides of the internal drive DC motor 1, respectively, near the top and near the bottom. One side of each of the two limiting strips 5 is in contact with the side of the sealing plate 3.

[0025] Four sets of synchronizing protrusions 8 arranged in a cross shape are fixed on the outer wall of the motor rotor 2 near the end. A synchronizing groove 9 is opened on the output shaft 4 near the end of the motor rotor 2. The end of the motor rotor 2 is slidably inserted into the synchronizing groove 9. Four sets of synchronizing grooves 10 adapted to the synchronizing protrusions 8 are opened on the inner wall of the synchronizing groove 9. The four sets of synchronizing protrusions 8 are slidably inserted into the four sets of synchronizing grooves 10 respectively.

[0026] The disassembly assembly includes a circular groove 12, an arc groove 13, and a limiting disc 14. The two sets of sealing plates 3 are provided with a half-circle circular groove 12 at the middle position on the side that is close to each other. The inner wall of the two sets of circular grooves 12 is provided with an arc groove 13 that is half-circle. The output shaft 4 is rotatably connected between the two sets of circular grooves 12, and the limiting disc 14 is rotatably installed between the two sets of arc grooves 13.

[0027] The disassembly assembly also includes a side groove 11, a limiting strip 15, a linkage plate 16, a component plate 17, and fixing screws 18. The two sets of sealing plates 3 are provided with side grooves 11 on the opposite sides. The limiting strips 15 are slidably installed in the two sets of side grooves 11. The top of the two sets of limiting strips 15 extends out of the top of the internal drive DC motor 1, and the linkage plate 16 is fixed between the top of the two sets of limiting strips 15. A horizontal component plate 17 is fixed to one side of the linkage plate 16 corresponding to the top of the internal drive DC motor 1. The top of the component plate 17 is threaded with two sets of fixing screws 18, and the bottom of the two sets of fixing screws 18 is threaded to the top of the internal drive DC motor 1 through the component plate 17.

[0028] One side of each of the two sets of limiting strips 15 is slidably engaged in the two sets of side grooves 11. The two sets of sealing plates 3 are tightly fitted on the side that is close to each other, and the two sets of sealing plates 3 are respectively fitted to the inner walls of the two sides of the internal drive DC motor 1 on the side that is far away from each other.

[0029] Positioning holes 7 are provided at the top of the positioning strip 6 near both ends, and the bottom ends of the two sets of limiting strips 15 are slidably inserted into the two sets of positioning holes 7 respectively.

[0030] Structural Description: Internal Drive DC Motor 1: As the core power component of the entire device, it is used to convert electrical energy into mechanical energy to drive the operation of other components;

[0031] Motor rotor 2: Rotatably installed inside the internal drive DC motor 1, it is the key component for generating the rotating magnetic field of the motor. Its end is slidably sleeved with the output shaft 4. Through cooperation with the output shaft 4, the rotational motion is transmitted to the output shaft 4.

[0032] Sealing plate 3: used to support and restrict the output shaft 4 to ensure the stability of the output shaft 4 during rotation. At the same time, the two sets of sealing plates 3 are provided with side grooves 11 on the side away from each other to provide space for the installation and sliding of the retaining strip 15.

[0033] Output shaft 4: Slidably sleeved at the end of motor rotor 2, with a synchronization groove 9 at the end. The inner wall of the synchronization groove 9 has four sets of synchronization grooves 10 that are adapted to the synchronization protrusions 8. By cooperating with the synchronization protrusions 8 on the motor rotor 2, it achieves synchronous rotation with the motor rotor 2. The output shaft 4 is rotatably connected between the circular grooves 12 on the two sets of sealing plates 3. The limiting disc 14 is rotated between the two sets of circular arc grooves 13. The limiting disc 14 is sleeved on the outer wall of the output shaft 4 to further ensure the stability of the rotation of the output shaft 4.

[0034] Limiting strip 5: There are two sets, which are respectively fixed between the inner walls of the two sides of the internal drive DC motor 1 near the top and near the bottom. One side of each strip is attached to the side of the sealing plate 3. They are used to assist in clamping the sealing plate 3, preventing the sealing plate 3 from shaking during motor operation and ensuring the stability of the output shaft 4.

[0035] Positioning strip 6: It is fixed at one end of the internal drive DC motor 1 near the bottom. Positioning holes 7 are opened at the top near both ends. It is used to cooperate with the limiting strip 15 to position and fix the sealing plate 3, and prevent the sealing plate 3 from leaving its original position during motor operation.

[0036] Synchronous bumps 8: There are four sets, which are distributed in a cross shape on the outer wall of the motor rotor 2 near the end position. They are slidably inserted into the synchronous groove 10 in the synchronous groove 9 at the end of the output shaft 4, so that the output shaft 4 can effectively follow the synchronous rotation of the motor rotor 2.

[0037] Synchronous groove 9: It is opened at the end of the output shaft 4 near the motor rotor 2. The inner wall is provided with four sets of synchronous grooves 10 that are adapted to the synchronous protrusions 8, so as to provide space for the insertion of the synchronous protrusions 8 and realize the synchronous rotation of the output shaft 4 and the motor rotor 2.

[0038] Synchronous grooves 10: There are four sets, which are formed on the inner wall of the synchronous groove 9 and are adapted to the synchronous protrusions 8 so that the synchronous protrusions 8 can be smoothly inserted and achieve synchronous rotation.

[0039] Side groove 11: There are two sets, which are respectively opened on the side of the two sets of sealing plates 3 that are far apart from each other, to provide space for the sliding installation of the retaining strip 15;

[0040] Circular groove 12: There are two sets, which are respectively opened on the middle position of the two sets of sealing plates 3 that are close to each other, to provide space for the rotation of the output shaft 4;

[0041] Arc groove 13: There are two sets, which are respectively opened on the inner wall of the two sets of arc grooves 12 to provide space for restricting the rotation and installation of the disc 14;

[0042] Restriction disc 14: It is sleeved on the outer wall of the output shaft 4 and rotatably installed between two sets of arc grooves 13 to further ensure the stability of the rotation of the output shaft 4;

[0043] Restriction strip 15: Used to fix and restrict the sealing plate 3 to prevent the sealing plate 3 from shaking during motor operation;

[0044] Linkage plate 16: It is fixed between the tops of the two sets of limiting strips 15 and is used to simultaneously control the movement of the two sets of limiting strips 15, so as to facilitate the disassembly and installation of the sealing plate 3.

[0045] Component plate 17: used to fix the linkage plate 16 and the limiting strip 15 to the internal drive DC motor 1 to prevent it from shaking during motor operation;

[0046] Fixing screw 18: Used to fix the component board 17 and the linkage plate 16 to the internal drive DC motor 1 to ensure the stability of the entire disassembled component.

[0047] Working principle: During use, the four sets of synchronous protrusions 8 on the motor rotor 2 are inserted into the four sets of synchronous grooves 10, allowing the output shaft 4 to effectively rotate synchronously with the motor rotor 2. When the output shaft 4 rotates between the circular grooves 12 on the two sets of sealing plates 3, the limiting disc 14 simultaneously rotates within the circular arc grooves 13 on the two sets of sealing plates 3. Since the two sets of limiting strips 5 and limiting clips 15 are inserted into the side grooves 11, they clamp the two sets, preventing displacement of the output shaft 4 during rotation and ensuring the output shaft 4 rotates smoothly. To ensure stability during operation, when the output shaft 4 needs to be disassembled, use a screwdriver to rotate and remove the two sets of fixing screws 18. Pull the two sets of limiting clips 15 upward through the linkage plate 16 so that the bottom ends of the two sets of limiting clips 15 are respectively disengaged from the positioning holes 7 on the two sets of positioning strips 6, and then disengaged from the side groove 11. Then, take out the two sets of sealing plates 3 from inside the internal drive DC motor 1 so that the end of the output shaft 4 is disengaged from the motor rotor 2. Then, separate the two sets of sealing plates 3 and disassemble the output shaft 4.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aluminum alloy housing internal drive DC motor, comprising an internal drive DC motor (1), wherein a motor rotor (2) is rotatably mounted inside the internal drive DC motor (1), characterized in that: Two sets of sealing plates (3) are slidably installed between the inner walls of the two sides of the internal drive DC motor (1). An output shaft (4) is slidably sleeved at the end of the motor rotor (2). A positioning strip (6) is fixed at one end of the internal drive DC motor (1) near the bottom. A circular limiting disc (14) is sleeved on the outer wall of the output shaft (4). A synchronization groove (9) is opened at the end of the output shaft (4). It also includes: Disassembly assembly, which is mounted on the internal drive DC motor (1), is used to disassemble the output shaft (4).

2. The aluminum alloy housing internal drive DC motor according to claim 1, characterized in that: The inner walls of the internal drive DC motor (1) are respectively fixed with horizontal limiting strips (5) at positions near the top and near the bottom. One side of each of the two sets of limiting strips (5) is attached to the side of the sealing plate (3).

3. The aluminum alloy housing internal drive DC motor according to claim 1, characterized in that: Four sets of synchronized protrusions (8) arranged in a cross shape are fixed on the outer wall of the motor rotor (2) near the end. The output shaft (4) is provided with a synchronized groove (9) near the end of the motor rotor (2). The end of the motor rotor (2) is slidably inserted into the synchronized groove (9). The inner wall of the synchronized groove (9) is provided with four sets of synchronized grooves (10) that are adapted to the synchronized protrusions (8). The four sets of synchronized protrusions (8) are slidably inserted into the four sets of synchronized grooves (10).

4. The aluminum alloy housing internal drive DC motor according to claim 1, characterized in that: The disassembly assembly includes a circular groove (12), an arc groove (13), and a limiting disc (14). The two sets of sealing plates (3) are provided with a half-circle circular groove (12) at the middle position on the side that is close to each other. The inner wall of the two sets of circular grooves (12) is provided with a half-circle annular arc groove (13). The output shaft (4) is rotatably connected between the two sets of circular grooves (12), and the limiting disc (14) is rotatably installed between the two sets of arc grooves (13).

5. The aluminum alloy housing internal drive DC motor according to claim 4, characterized in that: The disassembly assembly also includes a side groove (11), a limiting strip (15), a linkage plate (16), a component plate (17), and fixing screws (18). The two sets of sealing plates (3) are provided with side grooves (11) on the side away from each other. The limiting strips (15) are slidably installed in the two sets of side grooves (11). The top of the two sets of limiting strips (15) extends out of the top of the internal drive DC motor (1), and the linkage plate (16) is fixed between the top of the two sets of limiting strips (15). A horizontal component plate (17) is fixed to one side of the linkage plate (16) corresponding to the top of the internal drive DC motor (1). The top of the component plate (17) is threaded with two sets of fixing screws (18), and the bottom of the two sets of fixing screws (18) is threaded to the top of the internal drive DC motor (1) through the component plate (17).

6. The aluminum alloy housing internal drive DC motor according to claim 5, characterized in that: One side of each of the two sets of limiting strips (15) is slidably engaged in the two sets of side grooves (11), the two sets of sealing plates (3) are tightly fitted on the side that is close to each other, and the two sets of sealing plates (3) are respectively fitted to the inner walls of the two sides of the internal drive DC motor (1).

7. The aluminum alloy housing internal drive DC motor according to claim 1, characterized in that: The top of the positioning strip (6) is provided with positioning holes (7) near both ends, and the bottom ends of the two sets of limiting strips (15) are slidably inserted into the two sets of positioning holes (7).

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