CN211655848U

CN211655848U - High-rotating-speed servo motor

Info

Publication number: CN211655848U
Application number: CN202020574022.XU
Authority: CN
Inventors: 黄华林; 尹告民
Original assignee: Shenzhen Sankatec Technology Co ltd
Current assignee: Shenzhen Sankatec Technology Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-10-09
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a high-speed servo motor, which comprises a shell, a bearing part, a stator part and a rotor part; the stator part is arranged in the shell and comprises a rotor magnetic yoke, a plurality of main permanent magnets and a plurality of auxiliary permanent magnets, the rotor magnetic yoke is arranged in the stator part and connected with the bearing part, and the main permanent magnets and the auxiliary permanent magnets are arranged in the rotor magnetic yoke. According to the utility model provides a high rotational speed servo motor, simple structure, and the rotational speed is fast, has great spreading value.

Description

High-rotating-speed servo motor

Technical Field

The utility model relates to a motor field especially relates to a high rotational speed servo motor.

Background

The servo motor can control the speed and position accuracy accurately, and can convert the voltage signal into torque and rotating speed to drive a control object. The rotation speed of the rotor of the servo motor is controlled by an input signal and can quickly respond, the servo motor is used as an actuating element in an automatic control system, has the characteristics of small electromechanical time constant, high linearity, starting voltage and the like, and can convert a received electric signal into angular displacement or angular speed on a motor shaft for output.

The application range of the servo motor is wide, and with the development of the society, the market demands the servo motor with high rotating speed. The rotating speed of the existing high-rotating-speed servo motor is generally about 5000-6000 revolutions, the servo motor of the type can meet part of production requirements, the requirement on the rotating speed is higher, and the servo motor is obviously not suitable for use.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model aims at providing a no tooth's socket power high rotational speed servo motor.

To achieve the above object, a non-cogging high-speed servo motor according to an embodiment of the present invention includes a surgical and bearing component, and further includes:

a stator component disposed within the housing;

the rotor part comprises a rotor magnetic yoke, a plurality of main permanent magnets and a plurality of auxiliary permanent magnets, the rotor magnetic yoke is arranged in the stator part and connected with the bearing part, and the main permanent magnets and the auxiliary permanent magnets are arranged in the rotor magnetic yoke.

According to the utility model provides a high rotational speed servo motor, simple structure, and the rotational speed is fast, has great spreading value.

In addition, according to the utility model discloses no tooth groove high rotational speed servo motor of above-mentioned embodiment can also have following additional technical characterstic:

according to an embodiment of the invention, the stator component comprises:

the stator magnetic yoke is of a tubular structure;

and the coils are uniformly arranged on the inner wall of the stator magnetic yoke, and two adjacent coils are abutted against each other.

According to the utility model discloses an embodiment, a plurality of coils pass through epoxy and install on the stator yoke.

According to an embodiment of the present invention, a plurality of V-shaped holes are formed on the upper surface of the rotor yoke at regular intervals, and a bar-shaped hole is formed between two ends of each V-shaped hole;

two main permanent magnets are symmetrically arranged in each V-shaped hole, and an auxiliary permanent magnet is arranged in each strip-shaped hole.

According to the utility model discloses an embodiment, be provided with magnetic isolation bridge in two in the V type hole between main permanent magnet.

According to the utility model discloses an embodiment, all pack in V type hole and the bar hole has epoxy.

According to the utility model discloses an embodiment, the upper surface of rotor yoke has seted up an auxiliary hole between two adjacent V type holes, the auxiliary hole intussuseption is filled with epoxy.

Drawings

Fig. 1 is a schematic structural view of a stator component and a rotor component according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a stator component according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a rotor component according to an embodiment of the present invention.

Reference numerals:

a stator part 10;

a stator yoke 11;

a coil 12;

a rotor component 20;

a rotor yoke 21;

a V-shaped hole 211;

a strip-shaped hole 212;

a magnetic isolation bridge 213;

the auxiliary holes 214;

a main permanent magnet 22;

auxiliary permanent magnets 23.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 3, an embodiment of the present invention provides a toothless slot high rotational speed servo motor, which includes a housing, a bearing component, a stator component 10 and a rotor component 20;

specifically, the stator component 10 is disposed within the housing;

the rotor part 20 includes a rotor yoke 21, a plurality of main permanent magnets 22 and a plurality of auxiliary permanent magnets 23, the rotor yoke 21 is disposed in the stator part 10 and connected to the bearing part, and the plurality of main permanent magnets 22 and the plurality of auxiliary permanent magnets 23 are disposed in the rotor yoke 21.

More specifically, the bearing member is connected to an external rotary platform, so that when the rotor member 20 rotates, the bearing member can be driven to rotate, and further, the rotary platform is driven to rotate through the bearing member, thereby realizing a corresponding driving function. The plurality of main permanent magnets 22 and the plurality of auxiliary permanent magnets 23 are arranged in the rotor yoke 21, so that the magnetic field intensity can be improved, and a large driving force is provided for the rotation of the rotor part 20, so that the rotor part 20 keeps rotating at a high speed, and the maximum rotating speed can reach 12000 revolutions.

Advantageously, in one embodiment of the invention, the stator component 10 comprises a stator yoke 11 and a plurality of coils 12;

the stator yoke 11 is a tubular structure;

the plurality of coils 12 are uniformly arranged on the inner wall of the stator yoke 11, and adjacent two coils 12 abut against each other.

Preferably, the plurality of coils 12 are mounted on the stator yoke 11 by epoxy resin.

So, fix a plurality of coils 12 on the inner wall of active cell yoke through epoxy for fixed effectual, firm inseparable, be difficult for droing. When the coil 12 is installed, an open slot is not required, and accordingly, the influence of the cogging force can be reduced, thereby being beneficial to improving the rotating speed of the stator component 10.

Advantageously, in another embodiment of the present invention, a plurality of V-shaped holes 211 are formed on the upper surface of the rotor yoke 21 at uniform intervals, and a bar-shaped hole 212 is formed between two ends of each V-shaped hole 211;

two main permanent magnets 22 are symmetrically arranged in each V-shaped hole 211, and an auxiliary permanent magnet 23 is arranged in each strip-shaped hole 212.

That is, two adjacent main permanent magnets 22 are formed into a V-shaped structure, so that the main permanent magnet 22 unit formed by two adjacent main permanent magnets 22 can play a role of concentrating magnetism, and the auxiliary permanent magnet 23 arranged between the two main permanent magnets 22 can enhance the magnetic field strength, and at the same time, adjust the sine of the magnetic field, thereby being beneficial to increasing the rotating speed of the rotor component 20.

Advantageously, in another embodiment of the present invention, a magnetic isolation bridge 213 is provided in the V-shaped hole 211 between the two main permanent magnets 22.

In this way, by providing the magnetic isolation bridge 213 between the two main permanent magnets 22 in the V-shaped hole 211, it is possible to prevent the magnetic leakage phenomenon from occurring, to ensure the magnetic field strength, and to ensure that the rotor can maintain high-speed rotation.

Advantageously, in some embodiments of the present invention, the V-shaped holes 211 and the bar-shaped holes 212 are filled with epoxy resin.

In this way, by filling the V-shaped holes 211 and the bar-shaped holes 212 with the epoxy resin, the main permanent magnets 22 and the auxiliary permanent magnets 23 can be tightly and firmly mounted in the rotor yoke 21, thereby preventing the permanent magnets from falling off.

Advantageously, in some embodiments of the present invention, an auxiliary hole 214 is opened on the upper surface of the rotor yoke 21 between two adjacent V-shaped holes 211, and the auxiliary hole 214 is filled with epoxy resin.

So, through filling epoxy in supplementary empty, to a certain extent, can strengthen the holistic rigidity of rotor and intensity to can improve life.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims

1. The utility model provides a high rotational speed servo motor, includes shell and bearing part, its characterized in that still includes:

a stator component disposed within the housing;

2. A high speed servo motor as in claim 1 wherein the stator component comprises:

the stator magnetic yoke is of a tubular structure;

3. A high speed servo motor as in claim 2 wherein the plurality of coils are mounted on the stator yoke by epoxy.

4. The high-speed servo motor as claimed in claim 1, wherein a plurality of V-shaped holes are formed on the upper surface of the rotor yoke at regular intervals, and a strip-shaped hole is formed between two ends of each V-shaped hole;

5. A high speed servo motor as claimed in claim 4, wherein a magnetic isolation bridge is provided in the V-shaped hole between the two main permanent magnets.

6. The high-speed servo motor of claim 4 wherein the V-shaped holes and the bar-shaped holes are filled with epoxy resin.

7. The high-speed servo motor of claim 6, wherein an auxiliary hole is formed on the upper surface of the rotor yoke between two adjacent V-shaped holes, and the auxiliary hole is filled with epoxy resin.