Novel motor rotating shaft for direct-current motor

Abstract

The utility model provides a novel motor rotating shaft used for a DC motor, and relates to the motor rotating shaft technology field, the novel motor rotating shaft comprises a rotating shaft body, two ends of the rotating shaft body are provided with first ring grooves, the surface of each first ring groove is provided with a second ring groove close to one end, and the surface of each first ring groove is sleeved and slidably connected with a wear-resistant sleeve. A circular groove is formed in one end of the rotating shaft body, and a fan blade plate is fixed in the circular groove; according to the motor rotating shaft, the wear-resisting sleeve is located at the position, connected with the bearing, of the bearing, when the wear-resisting sleeve is abraded, the wear-resisting sleeve can be independently replaced, the effect of prolonging the service life of the rotating shaft body can be achieved, meanwhile, the effect of reducing the replacement cost can be achieved, and the fan blade plate rotates along with the motor rotating shaft body; the air flow can be generated, and through the air flow, air can be pushed to a relatively hot area in the circular groove, so that heat is taken away, and the working temperature of the equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of motor shaft technology, and in particular to a novel motor shaft for DC motors. Background Technology

[0002] A DC motor is an electric motor that converts DC electrical energy into mechanical energy. Due to its excellent speed regulation performance, it is widely used in electric drives. DC motors are classified into three types according to their excitation method: permanent magnet, separately excited, and self-excited. Among them, self-excited motors are further divided into three types: shunt excited, series excited, and compound excited. The motor shaft is a crucial part of a DC motor.

[0003] In current DC motors, the motor shaft is usually in direct contact with the bearing during operation. This friction over a long period of time will lead to wear, which will affect the motor's operating efficiency and service life. At the same time, the shaft will generate heat during operation, especially under high load. If the heat dissipation is not handled properly, it may overheat, which will affect the motor's efficiency and life. Therefore, a new type of motor shaft for DC motors is needed to solve the above problems. Utility Model Content

[0004] This utility model mainly provides a new type of motor shaft where worn parts can be replaced individually.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel motor shaft for a DC motor, comprising: a shaft body, wherein a first annular groove is formed at both ends of the shaft body, a second annular groove is formed on the surface of the first annular groove and near one end, a wear-resistant sleeve is fitted and slidably connected to the surface of the first annular groove, and a circular groove is formed at one end of the shaft body, wherein a fan blade plate is fixed inside the circular groove.

[0006] Preferably, the surface of the second annular groove is symmetrically provided with grooves, and the mounting block is embedded and slidably connected inside the groove. The mounting block is fixedly connected to the wear-resistant sleeve. With the above arrangement, the wear-resistant sleeve can be easily fitted and slid on the surface of the second annular groove, and it can be positioned during the sliding process.

[0007] Preferably, the surface of the mounting block is threaded through and connected to the mounting component, and one end of the mounting component is embedded in the inner wall of one side of the groove and threadedly connected thereto. Through the above arrangement, the wear-resistant sleeve can be fixed.

[0008] Preferably, the surface of the first annular groove is provided with equal-spaced limiting grooves, and each limiting groove is embedded in and slidably connected with a limiting plate. The limiting plate is fixedly connected to the inner wall of the wear-resistant sleeve. Through the above arrangement, the wear-resistant sleeve can be limited.

[0009] Preferably, there are six groups of fan blades, with four fan blades in each group, and the distance between the four fan blades is equal. This arrangement can achieve the effect of positioning the fan blades.

[0010] Compared with existing technologies, the advantages and positive effects of this utility model are as follows:

[0011] 1. In this utility model, by placing the wear-resistant sleeve at the bearing and its contact point, when the wear-resistant sleeve is worn, it can be replaced separately, thereby improving the service life of the shaft body and reducing replacement costs.

[0012] 2. In this utility model, the fan blades generate airflow as the motor shaft rotates. This airflow pushes the air to the relatively hot area inside the circular groove, thereby carrying away heat and reducing the operating temperature of the equipment. Attached Figure Description

[0013] Figure 1 A three-dimensional view of the overall structure of a novel motor shaft for a DC motor is provided for this utility model.

[0014] Figure 2 This utility model provides an overall structural cross-sectional view of a novel motor shaft for a DC motor.

[0015] Figure 3 This utility model presents a partial three-dimensional view of a novel motor shaft for a DC motor.

[0016] Figure 4 This utility model presents a three-dimensional view of a novel wear-resistant sleeve structure for a DC motor shaft.

[0017] Legend: 1. Shaft body; 2. First annular groove; 3. Wear-resistant sleeve; 4. Second annular groove; 5. Groove; 6. Mounting block; 7. Mounting component; 8. Circular groove; 9. Fan blade plate; 10. Limiting groove; 11. Limiting plate. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a novel motor shaft for a DC motor, comprising: a shaft body 1, with first annular grooves 2 at both ends of the shaft body 1, and second annular grooves 4 on the surface of the first annular grooves 2 and near one end, a wear-resistant sleeve 3 fitted and slidably connected to the surface of the first annular grooves 2, and a circular groove 8 at one end of the shaft body 1, with a fan blade 9 fixed inside the circular groove 8. This configuration allows the wear-resistant sleeve 3 to be replaced individually when it wears, thereby increasing the service life of the shaft body 1 and reducing replacement costs. When the shaft body 1 is running, it drives the fan blade 9 to rotate. As the shaft body 1 rotates, the fan blade 9 generates airflow, which pushes the air to the relatively hot area inside the circular groove 8, thus carrying away heat and reducing the operating temperature of the equipment.

[0021] like Figure 1 and Figure 2 As shown, grooves 5 are symmetrically opened on the surface of the second annular groove 4. The mounting block 6 is embedded and slidably connected inside the groove 5. The mounting block 6 is fixedly connected to the wear-resistant sleeve 3. Through the above arrangement, the wear-resistant sleeve 3 can be easily fitted and slid on the surface of the second annular groove 4, and can be positioned during the sliding process.

[0022] like Figure 2 As shown, the surface of the mounting block 6 is threaded through and connected to the mounting part 7. One end of the mounting part 7 is embedded in the inner wall of one side of the groove 5 and threadedly connected to it. Through the above arrangement, the wear-resistant sleeve 3 can be fixed.

[0023] like Figure 3 and Figure 4 As shown, the surface of the first annular groove 2 is provided with equal spacing of limiting grooves 10. The limiting grooves 10 are all embedded in and slidably connected with limiting plates 11. The limiting plates 11 are fixedly connected to the inner wall of the wear-resistant sleeve 3. Through the above arrangement, the wear-resistant sleeve 3 can be limited.

[0024] like Figure 2 As shown, there are six groups of fan blades 9, with four fan blades 9 in each group. The distance between the four fan blades 9 is equal. Through the above setting, the fan blades 9 can be positioned.

[0025] The usage and working principle of this device are as follows: By installing the rotating shaft body 1 inside the motor, the wear-resistant sleeve 3 can be placed in contact with the bearing. When the wear-resistant sleeve 3 wears, the mounting part can be disassembled and the wear-resistant sleeve 3 can be replaced separately, thereby improving the service life of the rotating shaft body 1 and reducing replacement costs. When the rotating shaft body 1 is running, it can drive the fan blade 9 to rotate. As the rotating shaft body 1 rotates, the fan blade 9 can generate airflow. Through this airflow, the air is pushed to the relatively hot area inside the circular groove 8, thereby carrying away heat and reducing the operating temperature of the equipment.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A novel motor shaft for a DC motor, characterized in that, include: The rotating shaft body (1) has a first annular groove (2) at both ends. A second annular groove (4) is opened on the surface of the first annular groove (2) and near one end. A wear-resistant sleeve (3) is fitted and slidably connected to the surface of the first annular groove (2). A circular groove (8) is opened at one end of the rotating shaft body (1). A fan blade plate (9) is fixed inside the circular groove (8).

2. A novel motor shaft for a DC motor according to claim 1, characterized in that: The surface of the second annular groove (4) is symmetrically provided with grooves (5), and the mounting block (6) is embedded and slidably connected inside the groove (5). The mounting block (6) is fixedly connected to the wear-resistant sleeve (3).

3. A novel motor shaft for a DC motor according to claim 2, characterized in that: The surface of the mounting block (6) is threaded through and connected to the mounting component (7), and one end of the mounting component (7) is embedded in the inner wall of one side of the groove (5) and threadedly connected to it.

4. A novel motor shaft for a DC motor according to claim 2, characterized in that: The surface of the first annular groove (2) is provided with equal spacing of limiting grooves (10), and the limiting plates (11) are embedded and slidably connected inside the limiting grooves (10). The limiting plates (11) are fixedly connected to the inner wall of the wear-resistant sleeve (3).

5. A novel motor shaft for a DC motor according to claim 2, characterized in that: The fan blades (9) are in six groups, with four fan blades (9) in each group, and the distance between the four fan blades (9) is equal.

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