Permanent magnet direct drive cutting roller motor with rotating speed adjustable function

Abstract

The utility model discloses a permanent-magnet direct-drive cutting drum motor with a rotating speed adjustable function, which comprises a main body assembly, and the main body assembly comprises a motor shaft, a variable-frequency controller, a Hall sensor and a magnet. A variable frequency controller is installed on the outer side wall of the motor shaft, and a Hall sensor is installed on the outer side wall of the motor shaft. The rotating speed of the permanent magnet direct drive cutting roller motor is monitored through the Hall sensor, and when the motor carries out mining cutting work, after the rotating speed is reduced due to load increase, the variable frequency controller automatically changes the input power of the motor, adjusts the rotating speed of the motor, and keeps stable overall performance and operation efficiency; the micro pump works to drive the cooling liquid to circularly flow, the spiral guide plate is utilized to increase the liquid stroke, the cooling liquid is enabled to fully exchange heat, the heat dissipation plate is utilized to quickly dissipate heat, the heat exchange effect of the cooling liquid is ensured, and the performance and the service life of the motor are prevented from being influenced by over-high internal temperature of the motor.

Description

Technical Field

[0001] The utility model relates to a motor, in particular to a permanent magnet direct drive cutting drum motor with a speed adjustable function, belonging to the technical field of drum motors. Background Technique

[0002] A drum motor is a motor designed specifically for driving a drum and is widely used in fields such as logistics, manufacturing, and mining. The permanent magnet direct drive cutting drum motor uses a permanent magnet synchronous motor as the power source to directly drive the drum to rotate without traditional mechanical transmission devices such as reducers and gears. This design makes the energy transfer between the motor and the drum more direct and efficient.

[0003] During the working process of the existing permanent magnet direct drive cutting drum motor, it is impossible to obtain the rotational speed information of the motor in real time and accurately, and adjust its working state according to the rotational speed change, which affects the overall performance and operation efficiency of the equipment. At the same time, the heat dissipation effect of the existing permanent magnet direct drive cutting drum motor is not good, which will cause the internal temperature of the motor to be too high, affecting the performance and service life of the motor. For this reason, a permanent magnet direct drive cutting drum motor with a speed adjustable function is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a permanent magnet direct drive cutting drum motor with a speed adjustable function to solve one of the problems raised in the above background technique.

[0005] The utility model is implemented by the following technical solutions: A permanent magnet direct drive cutting drum motor with a speed adjustable function includes a main body assembly, and the main body assembly includes a motor shaft, a frequency conversion controller, a Hall sensor, and a magnet; the frequency conversion controller is installed on the outer side wall of the motor shaft, the Hall sensor is installed on the outer side wall of the motor shaft, the signal output end of the Hall sensor is signal-connected to the signal input end of the frequency conversion controller, and a magnet is arranged on one side of the Hall sensor;

[0006] A cooling assembly is arranged on one side and inside of the main body assembly, and the cooling assembly includes a heat dissipation plate, a liquid inlet pipe, a micro pump, a heat exchange cavity, a spiral guide plate, and a liquid return pipe; the liquid inlet pipe is communicated with one side of the heat dissipation plate, the micro pump is installed on the liquid inlet pipe, one end of the liquid inlet pipe is communicated with the heat exchange cavity, the spiral guide plate is fixedly connected to the inner side wall of the heat exchange cavity, the liquid return pipe is communicated with the outer side wall of the heat exchange cavity, and one end of the liquid return pipe is communicated with the heat dissipation plate.

[0007] As a further preference of this technical solution: The heat dissipation plate is fixedly connected to one end of the motor shaft, the heat dissipation plate is a hollow structure inside, and heat dissipation fins are uniformly fixedly connected to the outer side wall of the heat dissipation plate.

[0008] As a further preference of this technical solution: The heat exchange cavity is arranged inside the motor shaft.

[0009] As a further preference of this technical solution: Symmetrically fixed to the outer side wall of the motor shaft are supports.

[0010] As a further preference of this technical solution: A through groove is arranged inside the motor shaft, and the liquid inlet pipe and the liquid return pipe are arranged inside the through groove.

[0011] As a further preference of this technical solution: A stator is installed on the outer side wall of the motor shaft.

[0012] As a further preference of this technical solution: Bearings are symmetrically installed on the outer side wall of the motor shaft. Rotatably connected to the outer side wall of the bearings is a drum. Fixedly connected to the inner side wall of the drum is a rotor, and the rotor is arranged outside the stator.

[0013] As a further preference of this technical solution: The magnet is fixedly connected to one side of the drum.

[0014] Advantages of the present utility model:

[0015] 1. The present utility model monitors the rotation speed of the permanent magnet direct drive cutting drum motor through a Hall sensor. When the motor is performing mining cutting work and the rotation speed decreases due to an increase in load, the frequency conversion controller automatically changes the input power of the motor, adjusts the rotation speed of the motor, and maintains stable overall performance and operation efficiency.

[0016] 2. The present utility model operates through a micro pump, drives the coolant to circulate, uses a spiral deflector to increase the liquid travel, enables the coolant to fully exchange heat, and quickly dissipates heat through a heat dissipation plate, ensuring the heat exchange effect of the coolant, thereby preventing the internal temperature of the motor from being too high and affecting the performance and lifespan of the motor. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a structural schematic diagram of the present utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the drum of the present utility model;

[0020] Figure 3 It is a top view structural schematic diagram of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of the cooling component of the present utility model.

[0022] In the figure: 10, main body component; 11, motor shaft; 12, support; 13, through groove; 14, stator; 15, bearing; 16, drum; 17, rotor; 18, frequency conversion controller; 19, Hall sensor; 110, magnet; 20, cooling component; 21, heat dissipation plate; 22, liquid inlet pipe; 23, micro pump; 24, heat exchange cavity; 25, spiral guide plate; 26, liquid return pipe. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment

[0025] Please refer to Figures 1-4 , the present utility model provides a technical solution: a permanent magnet direct drive cutting drum motor with adjustable speed function, including a main body component 10, the main body component 10 includes a motor shaft 11, a frequency conversion controller 18, a Hall sensor 19 and a magnet 110; a frequency conversion controller 18 is installed on the outer side wall of the motor shaft 11, a Hall sensor 19 is installed on the outer side wall of the motor shaft 11, the signal output end of the Hall sensor 19 is signal-connected to the signal input end of the frequency conversion controller 18, and a magnet 110 is arranged on one side of the Hall sensor 19;

[0026] A cooling component 20 is arranged on one side and inside of the main body component 10, the cooling component 20 includes a heat dissipation plate 21, a liquid inlet pipe 22, a micro pump 23, a heat exchange cavity 24, a spiral guide plate 25 and a liquid return pipe 26; a liquid inlet pipe 22 is communicated with one side of the heat dissipation plate 21, a micro pump 23 is installed on the liquid inlet pipe 22, one end of the liquid inlet pipe 22 is communicated with the heat exchange cavity 24, a spiral guide plate 25 is fixedly connected to the inner side wall of the heat exchange cavity 24, a liquid return pipe 26 is communicated with the outer side wall of the heat exchange cavity 24, one end of the liquid return pipe 26 is communicated with the heat dissipation plate 21, the liquid inlet pipe 22 and the liquid return pipe 26 are used for transporting coolant, the micro pump 23 works to drive the coolant to circulate, and the spiral guide plate 25 is used to increase the liquid travel to enable the coolant to fully exchange heat.

[0027] In this embodiment, specifically: The heat dissipation plate 21 is fixedly connected to one end of the motor shaft 11. The heat dissipation plate 21 has a hollow internal structure, and heat dissipation fins are uniformly and fixedly connected to the outer side wall of the heat dissipation plate 21. The heat dissipation fins are used to improve the heat dissipation efficiency of the heat dissipation plate 21.

[0028] In this embodiment, specifically: The heat exchange cavity 24 is arranged inside the motor shaft 11.

[0029] In this embodiment, specifically: Supports 12 are symmetrically and fixedly connected to the outer side wall of the motor shaft 11.

[0030] In this embodiment, specifically: A through groove 13 is arranged inside the motor shaft 11. The liquid inlet pipe 22 and the liquid return pipe 26 are arranged inside the through groove 13. The through groove 13 facilitates the layout of pipelines.

[0031] In this embodiment, specifically: A stator 14 is installed on the outer side wall of the motor shaft 11, and the stator 14 is equipped with windings.

[0032] In this embodiment, specifically: Bearings 15 are symmetrically installed on the outer side wall of the motor shaft 11. A roller 16 is rotatably connected to the outer side wall of the bearing 15. A rotor 17 is fixedly connected to the inner side wall of the roller 16. The rotor 17 is arranged outside the stator 14. After the external windings of the stator 14 are electrified, the rotor 17 and the roller 16 are driven to rotate under the action of the magnetic field.

[0033] In this embodiment, specifically: A magnet 110 is fixedly connected to one side of the roller 16. By cooperating with the Hall sensor 19 and the magnet 110, the rotation speed of the permanent magnet direct drive cutting drum motor is monitored.

[0034] Working principle or structural principle: During use, after the external windings of the stator 14 are electrified, the rotor 17 and the roller 16 are driven to rotate under the action of the magnetic field. By cooperating with the Hall sensor 19 and the magnet 110, the rotation speed of the permanent magnet direct drive cutting drum motor is monitored. When the load increases and the rotation speed decreases during the mining and cutting work of the motor, the Hall sensor 19 sends a signal to the frequency conversion controller 18. The frequency conversion controller 18 automatically changes the input power of the motor and adjusts the rotation speed of the motor to maintain stable overall performance and operation efficiency. By the operation of the micro pump 23, the coolant is driven to circulate. The spiral guide plate 25 is used to increase the liquid travel distance, so that the coolant is fully heat exchanged, and is quickly dissipated by the heat dissipation plate 21 to ensure the heat exchange effect of the coolant, thereby preventing the internal temperature of the motor from being too high and affecting the performance and service life of the motor.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A permanent magnet direct drive cutting drum motor with adjustable speed function, comprising a main body assembly (10), characterized in that, The main body component (10) includes a motor shaft (11), a variable frequency controller (18), a Hall sensor (19), and a magnet (110); a variable frequency controller (18) is installed on the outer side wall of the motor shaft (11), a Hall sensor (19) is installed on the outer side wall of the motor shaft (11), the signal output end of the Hall sensor (19) is signal-connected to the signal input end of the variable frequency controller (18), and a magnet (110) is arranged on one side of the Hall sensor (19); On one side and inside of the main body component (10), a cooling component (20) is provided. The cooling component (20) includes a heat dissipation plate (21), a liquid inlet pipe (22), a micro pump (23), a heat exchange cavity (24), a spiral guide plate (25), and a liquid return pipe (26); a liquid inlet pipe (22) is communicated with one side of the heat dissipation plate (21), a micro pump (23) is installed on the liquid inlet pipe (22), one end of the liquid inlet pipe (22) is communicated with the heat exchange cavity (24), a spiral guide plate (25) is fixedly connected to the inner side wall of the heat exchange cavity (24), a liquid return pipe (26) is communicated with the outer side wall of the heat exchange cavity (24), and one end of the liquid return pipe (26) is communicated with the heat dissipation plate (21).

2. The permanent magnet direct drive cutting drum motor with adjustable speed function according to claim 1, characterized in that, The heat dissipation plate (21) is fixedly connected to one end of the motor shaft (11). The heat dissipation plate (21) has a hollow internal structure, and heat dissipation fins are uniformly and fixedly connected to the outer side wall of the heat dissipation plate (21).

3. The permanent magnet direct drive cutting drum motor with adjustable speed function according to claim 2, characterized in that, The heat exchange cavity (24) is arranged inside the motor shaft (11).

4. A permanent magnet direct drive cutting drum motor with a speed adjustable function according to claim 3, characterized in that, Supports (12) are symmetrically and fixedly connected to the outer side wall of the motor shaft (11).

5. The permanent magnet direct drive cutting drum motor with adjustable speed function according to claim 4, characterized in that A through groove (13) is arranged inside the motor shaft (11), and the liquid inlet pipe (22) and the liquid return pipe (26) are arranged inside the through groove (13).

6. A permanent magnet direct drive cutting drum motor with a function of adjustable rotational speed according to claim 5, characterized in that, A stator (14) is installed on the outer side wall of the motor shaft (11).

7. A permanent magnet direct drive cutting drum motor with adjustable speed function according to claim 1, characterized in that, Bearings (15) are symmetrically installed on the outer side wall of the motor shaft (11). The outer side wall of the bearing (15) is rotationally connected to a drum (16), and a rotor (17) is fixedly connected to the inner side wall of the drum (16). The rotor (17) is arranged outside the stator (14).

8. A permanent magnet direct drive cutting drum motor with a speed adjustable function according to claim 7, characterized in that, The magnet (110) is fixedly connected to one side of the drum (16).

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