Motor rotor with high safety performance

Abstract

The utility model discloses a motor rotor with high safety performance, which comprises a rotating shaft, the outer part of the rotating shaft is sleeved and fixedly connected with a connecting cylinder, and the outer part of the connecting cylinder is sleeved and fixedly provided with a motor iron core module. The rotating shaft rotates to drive the fixing sleeve, the connecting rod and the sliding ring to rotate, the sliding ring slides in the annular sliding rail fixedly installed on the inner wall of the motor, the annular sliding rail can play a role in limiting the position of the rotating shaft, and the rotating shaft drives the fan blades between the fixing sleeve and the sliding ring to rotate when rotating through the fan blades arranged between the fixing sleeve and the sliding ring. Compared with the prior art, the rotating shaft can be prevented from generating eccentricity during rotation, meanwhile, heat dissipation and cooling can be carried out, the service life of the motor is prolonged, faults of the motor are avoided, and the safety performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor rotor technology, and in particular to a motor rotor with high safety performance. Background Technology

[0002] The rotor of an electric motor is the rotating part of the motor. It works with the stationary stator to convert electrical energy into mechanical energy. Electric motor rotors can be divided into two types: motor rotors and generator rotors. The motor rotor is typically responsible for outputting torque, and its design and performance have a decisive impact on the efficiency and reliability of the entire motor system. The rotor's balance, material selection, manufacturing process, and the properties of the magnetic materials all directly affect the motor's operating condition and lifespan.

[0003] In the existing technology, the rotor of the existing motor will vibrate when it runs at high speed, which will cause rotor vibration and eccentricity. When the rotor vibrates and is eccentric, it is easy to rub against the stator, causing wear. In addition, the heat generated during high-speed operation cannot be dissipated in time, resulting in a reduced service life, easy failure of the motor, and low safety performance. Utility Model Content

[0004] The technical problem to be solved by this utility model is that in the prior art, the motor rotor is prone to vibration and eccentricity when running at high speed. The rotor rubbing against the stator will cause wear, and the heat generated during high-speed operation cannot be dissipated in time, resulting in a reduced service life.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a motor rotor with high safety performance, including a rotating shaft, a connecting cylinder fixedly connected to the outside of the rotating shaft, a motor core module fixedly installed on the outside of the connecting cylinder, two air blowing components arranged on the outer side wall of the rotating shaft and on both sides of the motor core module, a front bearing and a rear bearing fixedly installed at both ends of the rotating shaft respectively, and a connector fixedly connected to one end of the rotating shaft extending through to one side of the front bearing;

[0006] Both of the aforementioned blower assemblies include a fixed sleeve, which is fitted and fixedly connected to the outside of the rotating shaft. Multiple connecting rods are fixedly connected around the outer wall of the fixed sleeve. One end of the multiple connecting rods is fixedly connected to a sliding ring. An annular slide rail is fitted around the outside of the sliding ring. Fan blades are provided between two adjacent connecting rods. One end of the multiple fan blades is fixedly connected to the outer wall of the fixed sleeve, and the other end of the multiple fan blades is fixedly connected to the inner wall of the sliding ring. Multiple heat dissipation holes are provided through one side of the surface of the connecting cylinder.

[0007] Preferably, the rotating shaft has a plurality of first vent holes on the outer wall of the shaft located on one side of the front bearing, and a plurality of second vent holes on the outer wall of the shaft located on the other side of the front bearing. An air passage is formed inside the rotating shaft, and the plurality of first vent holes and the plurality of second vent holes are connected to each other through the air passage.

[0008] Preferably, multiple reinforcing ribs are fixedly connected to the inner sidewalls of the multiple heat dissipation holes, which can not only increase the strength, but also increase the heat dissipation area.

[0009] Preferably, the two sides of the surface of the sliding ring are slidably connected to the two sides of the inner surface of the annular slide rail, and multiple balls are movably installed between the outer wall of the sliding ring and the inner bottom of the annular slide rail, so that the sliding ring slides more smoothly.

[0010] Preferably, both annular slide rails have multiple threaded holes circumferentially formed on their outer walls for fixing and installing the annular slide rails.

[0011] Preferably, the fan blades are made of ABS plastic, which is lightweight and has high hardness.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention incorporates components such as a connecting cylinder, heat dissipation holes, an annular slide rail, and fan blades. The rotating shaft drives the fixed sleeve, connecting rod, and sliding ring to rotate. The sliding ring slides within the annular slide rail, which is fixedly installed on the inner wall of the motor. The annular slide rail serves to limit the position of the rotating shaft. The fan blades, positioned between the fixed sleeve and the sliding ring, rotate when the shaft rotates, generating airflow that blows through the heat dissipation holes to cool the connecting cylinder and the motor core module outside the connecting cylinder. Compared to existing technologies, this design avoids eccentricity during shaft rotation, effectively dissipates heat, extends motor lifespan, prevents motor malfunctions, and improves safety performance. Attached Figure Description

[0014] Figure 1 This is a perspective view of a motor rotor with high safety performance according to the present invention;

[0015] Figure 2 This is a structural schematic diagram of the connecting cylinder position of a motor rotor with high safety performance according to this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the annular slide rail of a motor rotor with high safety performance according to this utility model.

[0017] In the diagram: 1. Shaft; 101. First vent; 102. Second vent; 2. Connecting cylinder; 201. Heat dissipation hole; 202. Reinforcing rib; 3. Motor core module; 4. Front bearing; 5. Rear bearing; 6. Connector; 7. Fixing sleeve; 8. Connecting rod; 9. Sliding ring; 10. Annular slide rail; 11. Fan blade; 12. Ball bearing; 13. Threaded hole. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0019] Please see Figure 1 and Figure 2 A high-safety-performance motor rotor includes a rotating shaft 1, a connecting cylinder 2 fixedly connected to the outside of the rotating shaft 1, a motor core module 3 fixedly installed on the outside of the connecting cylinder 2, two air blowing components are provided on the outer side wall of the rotating shaft 1 and on both sides of the motor core module 3, the rotating shaft 1 can drive the two air blowing components to rotate, thereby generating airflow, the airflow blows towards the motor core module 3 to accelerate heat dissipation, a front bearing 4 and a rear bearing 5 are fixedly installed at both ends of the rotating shaft 1 respectively, and a connector 6 is fixedly connected to one end of the rotating shaft 1 through and extending to one side of the front bearing 4, the connector 6 is used to connect with the external structure that needs to be driven;

[0020] Both blower components include a fixed sleeve 7, which is fixedly connected to the outside of the rotating shaft 1. Multiple connecting rods 8 are fixedly connected around the outer wall of the fixed sleeve 7. One end of the multiple connecting rods 8 is fixedly connected to a sliding ring 9. The connecting rods 8 can play a role in fixing and supporting. An annular slide rail 10 is fitted on the outside of the sliding ring 9. Fan blades 11 are provided between two adjacent connecting rods 8. One end of the multiple fan blades 11 is fixedly connected to the outer wall of the fixed sleeve 7, and the other end of the multiple fan blades 11 is fixedly connected to the inner wall of the sliding ring 9. Multiple heat dissipation holes 201 are opened through one side of the surface of the connecting cylinder 2. The heat dissipation holes 201 can increase the contact area between the connecting cylinder 2 and the outside air. The airflow generated by the rotation of the blower component blows through the multiple heat dissipation holes 201, which can accelerate its heat dissipation.

[0021] like Figures 1 to 3As shown, the fan blade 11 is made of ABS plastic, which is lightweight and has high hardness. Multiple threaded holes 13 are provided around the outer walls of the two annular slide rails 10 for fixing the annular slide rails 10. The two sides of the surface of the sliding ring 9 are slidably connected to the two sides of the inner surface of the annular slide rail 10. Multiple balls 12 are movably installed between the outer wall of the sliding ring 9 and the inner bottom of the annular slide rail 10 to make the sliding ring 9 slide more smoothly. Multiple reinforcing ribs 202 are fixedly connected to the inner side walls of the multiple heat dissipation holes 201, which can not only increase the strength but also increase the heat dissipation area. Multiple first vent holes 101 are provided on the outer side wall of the shaft 1 located on one side of the front bearing 4, and multiple second vent holes 102 are provided on the outer side wall of the shaft 1 located on the other side of the front bearing 4. An air passage is provided inside the shaft 1, and the multiple first vent holes 101 and multiple second vent holes 102 are connected through the air passage.

[0022] In use, when the motor stator is energized, the motor core module 3, connecting cylinder 2, and rotating shaft 1 rotate. The rotating shaft 1 drives two fixed sleeves 7 and multiple connecting rods 8 fixedly connected to the outer wall of the fixed sleeves 7, as well as a sliding ring 9 fixedly connected to the multiple connecting rods 8. The annular slide rail 10 is fixed to the inner wall of the motor through a threaded hole 13. The sliding ring 9 slides on the inner wall of the annular slide rail 10, which can limit the high-speed rotating shaft 1 and prevent eccentricity. The fan blades 11 set between the fixed sleeves 7 and the sliding ring 9 can generate airflow as they rotate. The airflow blows through multiple heat dissipation holes 201 on one side of the surface of the connecting cylinder 2, which can dissipate heat and cool down the connecting cylinder 2 and the motor core module 3 installed on the outside of the connecting cylinder 2. Compared with the prior art, this invention can prevent the high-speed rotating shaft 1 from becoming eccentric, and can also better dissipate heat, extend service life, reduce motor failures, and improve safety performance.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-safety-performance motor rotor, comprising a shaft (1), characterized in that, A connecting cylinder (2) is fixedly connected to the outside of the rotating shaft (1). A motor core module (3) is fixedly installed on the outside of the connecting cylinder (2). Two air blowing components are provided on the outer side wall of the rotating shaft (1) and on both sides of the motor core module (3). A front bearing (4) and a rear bearing (5) are fixedly installed on both ends of the rotating shaft (1). A connector (6) is fixedly connected to one end of the rotating shaft (1) through and extending to one side of the front bearing (4). Both of the blower components include a fixed sleeve (7), which is fitted and fixedly connected to the outside of the rotating shaft (1). Multiple connecting rods (8) are fixedly connected around the outer wall of the fixed sleeve (7). One end of the multiple connecting rods (8) is fixedly connected to a sliding ring (9). An annular slide rail (10) is fitted around the outside of the sliding ring (9). Fan blades (11) are provided between two adjacent connecting rods (8). One end of the multiple fan blades (11) is fixedly connected to the outer wall of the fixed sleeve (7), and the other end of the multiple fan blades (11) is fixedly connected to the inner wall of the sliding ring (9). Multiple heat dissipation holes (201) are opened through one side of the surface of the connecting cylinder (2).

2. The high-safety-performance motor rotor according to claim 1, characterized in that: The rotating shaft (1) has multiple first vent holes (101) on the outer wall located on one side of the front bearing (4), and multiple second vent holes (102) on the outer wall located on the other side of the front bearing (4). An air passage is provided inside the rotating shaft (1), and the multiple first vent holes (101) and the multiple second vent holes (102) are connected through the air passage.

3. A high-safety-performance motor rotor according to claim 1, characterized in that: Multiple reinforcing ribs (202) are fixedly connected to the inner sidewalls of the multiple heat dissipation holes (201).

4. A high-safety-performance motor rotor according to claim 1, characterized in that: The two sides of the surface of the sliding ring (9) are slidably connected to the two sides of the inner surface of the annular slide rail (10), and a plurality of balls (12) are movably installed between the outer wall of the sliding ring (9) and the inner bottom of the annular slide rail (10).

5. A high-safety-performance motor rotor according to claim 1, characterized in that: Multiple threaded holes (13) are provided around the outer walls of both annular slide rails (10).

6. A high-safety-performance motor rotor according to claim 1, characterized in that: The fan blade (11) is made of ABS plastic.

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