Shaft core of brushless motor

Abstract

The utility model relates to the field of brushless motor assemblies, in particular to a shaft core of a brushless motor, which comprises a first shaft body, one side of the first shaft body is connected with a second shaft body, the surface of one side, far away from the first shaft body, of the second shaft body is provided with an installation insertion hole, and a reinforcing column is inserted into the installation insertion hole of the second shaft body. A pouring block is arranged on the side, located on the reinforcing column, of the interior of the installation insertion hole, and a first arc chamfering part is arranged on the outer wall of the end of the side, away from the second shaft body, of the first shaft body, and the installation insertion hole is formed in the shaft core, so that the reinforcing column made of but not limited to a titanium alloy material is inserted into the shaft core; therefore, while the strength of the shaft core main body is improved, the whole material does not need to be replaced by titanium alloy, and the first shaft body and the second shaft body which are made of tungsten-cobalt alloy are matched, so that the overall hardness and strength of the shaft core are effectively improved, and the shaft core is prevented from being deformed or fractured in the operation process to influence the overall performance and the service life of the motor.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless motor components, in particular to a shaft core of a brushless motor. Background Art

[0002] A brushless motor is a mechatronic product consisting of a motor and a drive. It operates autonomously, eliminating the need for traditional brushes and commutators, resulting in high reliability and low maintenance.

[0003] The components of a brushless motor include the shaft core. Some shaft cores are now made of poor materials, resulting in low strength and hardness, which can cause the shaft core to deform or break during operation, thereby affecting the overall performance and life of the motor. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a shaft core for a brushless motor.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The shaft core of the brushless motor includes a first shaft body, a second shaft body is connected to one side of the first shaft body, a mounting hole is opened on the surface of the second shaft body away from the first shaft body, a reinforcing column is inserted into the mounting hole of the second shaft body, and a casting block is set on one side of the reinforcing column in the mounting hole.

[0007] In addition, a preferred structure is that a first arc chamfered portion is provided on the outer wall of the end of the first shaft away from the second shaft.

[0008] In addition, a preferred structure is that an arc groove is provided on the outer wall of the end of the first shaft away from the second shaft.

[0009] In addition, a preferred structure is that an assembly groove is provided on the outer wall of the second shaft body, and a second arc chamfered portion is provided on the outer wall of the end of the second shaft body away from the first shaft body.

[0010] In addition, a preferred structure is that the reinforcing column is made of a material including but not limited to titanium alloy.

[0011] In addition, a preferred structure is that both the first shaft and the second shaft are made of a material including but not limited to tungsten-cobalt alloy.

[0012] The beneficial effects of the present invention are as follows: the present invention opens an installation socket in the shaft core, so that a reinforcing column made of materials including but not limited to titanium alloy is inserted into the interior thereof. In this way, while improving the strength of the shaft core body, there is no need to replace the entire material with titanium alloy. In combination with the first shaft body and the second shaft body made of tungsten-cobalt alloy, the overall hardness and strength of the shaft core are effectively improved, preventing it from deformation or breakage during operation, thereby affecting the overall performance and life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the shaft core structure Figure 1 ;

[0014] Figure 2 Schematic diagram of the shaft core structure Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the structure after the reinforcement column and the shaft core are separated;

[0016] Figure 4 Schematic diagram of the structure inside the shaft core.

[0017] In the figure: 1 first shaft body, 11 first arc chamfered portion, 12 arc groove, 2 second shaft body, 21 assembly groove, 22 second arc chamfered portion, 23 installation socket, 3 reinforcement column, 4 pouring block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-4 The shaft core of the brushless motor includes a first shaft body 1, a second shaft body 2 is connected to one side of the first shaft body 1, a mounting hole 23 is opened on the surface of the second shaft body 2 away from the first shaft body 1, a reinforcing column 3 is inserted into the mounting hole 23 of the second shaft body 2, and a pouring block 4 is set on one side of the reinforcing column 3 in the mounting hole 23.

[0020] A first arc chamfered portion 11 is provided on the outer wall of the end of the first shaft body 1 away from the second shaft body 2 , and an arc groove 12 is provided on the outer wall of the end of the first shaft body 1 away from the second shaft body 2 , and the arc groove 12 is used for limiting.

[0021] Moreover, an assembly groove 21 is provided on the outer wall of the second shaft body 2 , and a second arc chamfered portion 22 is provided on the outer wall of the end of the second shaft body 2 away from the first shaft body 1 , and the assembly groove 21 is used for assembly.

[0022] In addition, the reinforcing column 3 is made of a material including but not limited to titanium alloy, which has high strength, good corrosion resistance and excellent torsional performance.

[0023] Moreover, the first shaft 1 and the second shaft 2 are both made of a material including but not limited to tungsten-cobalt alloy, which has high hardness and good wear resistance.

[0024] In this embodiment, a mounting socket 23 is opened in the shaft core, so that a reinforcing column 3 made of a material including but not limited to titanium alloy is inserted into the shaft core. In this way, while improving the strength of the shaft core body, there is no need to replace the entire material with titanium alloy. After inserting the reinforcing column 3, molten tungsten-cobalt alloy is poured into the entrance of the mounting socket 23 to form a pouring block 4, which is fixed inside. This can effectively improve the strength of the shaft core.

[0025] In the present invention, a mounting socket 23 is provided in the shaft core, so that a reinforcing column 3 made of a material including but not limited to titanium alloy is inserted into the shaft core. In this way, while improving the strength of the shaft core body, there is no need to replace the entire material with titanium alloy. In combination with the first shaft body 1 and the second shaft body 2 made of tungsten-cobalt alloy, the overall hardness and strength of the shaft core are effectively improved, preventing it from deformation or breakage during operation, thereby affecting the overall performance and life of the motor.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A brushless motor shaft core, comprising a first shaft body (1), characterized in that: A second shaft (2) is connected to one side of the first shaft (1); a mounting hole (23) is provided on a surface of the second shaft (2) away from the first shaft (1); a reinforcing column (3) is inserted into the mounting hole (23) of the second shaft (2); and a pouring block (4) is provided on one side of the reinforcing column (3) in the mounting hole (23).

2. The shaft core of the brushless motor according to claim 1, characterized in that: A first arc chamfered portion (11) is provided on the outer wall of the end of the first shaft body (1) away from the second shaft body (2).

3. The shaft core of the brushless motor according to claim 2, characterized in that: An arc groove (12) is provided on the outer wall of the end of the first shaft (1) away from the second shaft (2).

4. The shaft core of the brushless motor according to claim 3, characterized in that: An assembly groove (21) is provided on the outer wall of the second shaft body (2), and a second arc chamfered portion (22) is provided on the outer wall of the end of the second shaft body (2) away from the first shaft body (1).

5. The shaft core of the brushless motor according to claim 1, characterized in that: The reinforcing column (3) is made of a material including but not limited to titanium alloy.

6. The shaft core of the brushless motor according to claim 1, characterized in that: The first shaft (1) and the second shaft (2) are both made of a material including but not limited to tungsten-cobalt alloy.

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