Drive and control integrated direct drive motor system

Abstract

The utility model discloses a drive-control integrated direct drive motor system, which belongs to the technical field of direct drive equipment, and comprises a motor assembly and a drive-control assembly, the motor assembly comprises a main body part and a magnetic shaft assembly, the drive-control assembly is arranged in the main body part, and the drive-control assembly is used for driving the main body part of the motor assembly and the magnetic shaft assembly to generate relative motion. Meanwhile, the drive control assembly is further used for detecting the relative position between the main body part and the magnetic shaft assembly in the using process and feeding back a position signal to the drive control assembly. The drive control assembly and the motor assembly are integrally designed, so that the motor is light in weight and convenient to install and use; and the limitation of the direct-drive motor on a use scene is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of direct drive equipment, in particular to a drive-control integrated direct drive motor system. Background Art

[0002] A direct-drive device refers to a form in which the motor is directly connected to the actuator, eliminating the intermediate transmission structure. This type of device can adapt to a variety of usage scenarios through servo control, and has the characteristics of fast effect speed and high motion accuracy. It is the core pillar of industrial automation. For example, linear motors have irreplaceable advantages in scenarios that require high frequency and fast response. Current linear motors need to be configured with separate drivers and encoders when in use. The entire device occupies a large space and has confusing wiring, which is not convenient for use on integrated automation equipment. Therefore, the utility model provides an integrated drive and control direct-drive motor system. Utility Model Content

[0003] In response to the above technical problems, the technical solution adopted by the utility model is: a drive-control integrated direct-drive motor system, including a motor assembly and a drive-control component, the motor assembly includes a main body and a magnetic axis component, the drive-control component is arranged inside the main body, the drive-control component is used to drive the main body and the magnetic axis component of the motor assembly to produce relative motion, and at the same time, the drive-control component is also used to detect the relative position between the main body and the magnetic axis component during use, and feed back the position signal to the drive-control component.

[0004] Furthermore, the main body part includes a motor housing, the motor housing includes a housing side plate, both ends of the housing side plate are respectively provided with housing end plates, a coil winding is provided inside the motor housing, the coil winding is sleeved on the outside of the winding support shaft, the winding support shaft is provided between the housing end plates, the drive control component is provided above the winding support shaft, and a cover plate is provided at the opening above the motor housing, and the cover plate is used to encapsulate the drive control component inside the main body part.

[0005] Furthermore, a step is provided above the end plate of the shell, and both ends of the drive control assembly are provided on the step of the end plate of the shell, and the cover plate is fixedly connected to the end plates of the shell at both ends by screws.

[0006] Furthermore, the magnetic axis assembly is arranged inside the winding support shaft, and the magnetic axis assembly includes a magnetic axis sleeve, and a plurality of magnetic steels are arranged inside the magnetic axis sleeve. Magnetic axis end covers are arranged at both ends of the magnetic axis sleeve, and the magnetic axis end covers are used to fix the magnetic steels inside the magnetic axis sleeve.

[0007] Furthermore, the drive and control component is integrated on a circuit board, and the drive and control component includes a drive module, a main control module, a communication module and a Hall sensor. Two Hall sensors are provided, and the connection line of the two Hall sensors is parallel to the axial direction of the magnetic axis assembly. The Hall sensor is used to detect the relative position between the main part of the motor assembly and the magnetic axis assembly and transmit the collected signal to the main control module.

[0008] Furthermore, the main control module includes a microprocessor and a step-down module. The microprocessor stores the main control code internally. The step-down module is used to provide the voltage required by the microprocessor. The microprocessor is used to receive the signal collected by the Hall sensor and send a control signal to the drive module.

[0009] Furthermore, the driving module includes multiple MOS tubes and sampling resistors. The MOS tubes control the current on each phase of the motor under the control signal sent by the main control module. The sampling resistors are used to collect output current signals of each phase of the motor and transmit the collected signals to the main control module.

[0010] Furthermore, the main control module also includes a step-down module, an amplifier, an indicator light, a reset button and a main interface. The step-down module is used to provide voltage to the main control module, the amplifier is used to amplify the collected signal, the indicator light is used to display the working status, the reset button is used to achieve a reset effect, the main interface is connected to an external power supply to power the circuit board, and is connected to the main control module and the communication module at the same time for data transmission. An aviation plug is provided on the cover plate, and the aviation plug is connected to the main interface on the main control module.

[0011] Furthermore, the communication module is used to realize the connection between the motor assembly and external hardware.

[0012] Compared with the prior art, the beneficial effect of the utility model is that the technical solution of the utility model integrates the drive control components on a circuit board, and then encapsulates them inside the motor assembly. The entire motor system is reduced to a size similar to the motor assembly, which greatly saves the use space and facilitates the construction of large-scale automation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 This is a schematic diagram of the overall structure of the utility model after the cover plate is removed.

[0015] Figure 3 It is a schematic diagram of the internal structure of the utility model after cutting.

[0016] Figure 4 The structure of the drive control component of the utility model is shown in FIG. Figure 1 .

[0017] Figure 5 The structure of the drive control component of the utility model is shown in FIG. Figure 2 .

[0018] Figure numbers: 1-magnetic axis assembly; 2-housing end plate; 3-housing side plate; 4-cover plate; 5-aviation plug; 6-circuit board; 7-coil winding; 8-winding support shaft; 9-drive module; 10-main control module; 11-communication module; 12-Hall sensor. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below in conjunction with the accompanying drawings.

[0020] Example: Reference Figure 1-Figure 5 As shown, a drive-control integrated direct-drive motor system includes a motor assembly and a drive-control component. The motor assembly includes a main body and a magnetic axis component 1. The drive-control component is arranged inside the main body. The drive-control component is used to drive the main body of the motor assembly and the magnetic axis component 1 to produce relative motion. At the same time, the drive-control component is also used to detect the relative position between the main body and the magnetic axis component 1 during use, and feed back the position signal to the drive-control component.

[0021] The main part includes a motor housing, which includes a housing side plate 3. Housing end plates 2 are respectively arranged at both ends of the housing side plate 3. A coil winding 7 is arranged inside the motor housing. The coil winding 7 is sleeved on the outside of a winding support shaft 8. The winding support shaft 8 is arranged between the housing end plates 2. The drive control component is arranged above the winding support shaft 8. A cover plate 4 is arranged at the opening above the motor housing. The cover plate 4 is used to encapsulate the drive control component inside the main part. A step is arranged above the housing end plate 2. Both ends of the drive control component are arranged on the steps of the housing end plate 2. The cover plate 4 is fixedly connected to the housing end plates 2 at both ends by screws.

[0022] The magnetic axis assembly 1 is arranged inside the winding support shaft 8. The magnetic axis assembly 1 includes a magnetic axis sleeve. A plurality of magnetic steels are arranged inside the magnetic axis sleeve. Magnetic axis end covers are arranged at both ends of the magnetic axis sleeve. The magnetic axis end covers are used to fix the magnetic steels inside the magnetic axis sleeve.

[0023] The drive control component is integrated on the circuit board 6, and the drive control component includes a drive module 9, a main control module 10, a communication module 11 and a Hall sensor 12. Two Hall sensors 12 are provided, and the connection line of the two Hall sensors 12 is parallel to the axial direction of the magnetic axis component 1. The Hall sensor 12 is used to detect the relative position between the main part of the motor assembly and the magnetic axis component 1 and transmit the collected signal to the main control module 10.

[0024] The main control module 10 includes a microprocessor and a step-down module. The microprocessor stores the main control code. The step-down module is used to provide the voltage required by the microprocessor. The microprocessor is used to receive the signal collected by the Hall sensor 12 and send a control signal to the drive module 9.

[0025] The driving module 9 includes multiple MOS tubes and sampling resistors. The MOS tubes control the current on each phase of the motor under the control signal sent by the main control module 10. The sampling resistors are used to collect the output current signals of each phase of the motor and transmit the collected signals to the main control module 10.

[0026] The main control module 10 also includes a step-down module, an amplifier, an indicator light, a reset button and a main interface. The step-down module is used to provide voltage to the main control module 10, the amplifier is used to amplify the collected signal, the indicator light is used to display the working status, the reset button is used to achieve a reset effect, the main interface is connected to an external power supply to power the circuit board 6, and is connected to the main control module 10 and the communication module 11 at the same time for data transmission. An aviation plug 5 is provided on the cover plate 4, and the aviation plug 5 is connected to the main interface on the main control module 10.

[0027] The communication module 11 is used to realize the connection between the motor assembly and external hardware.

[0028] When the drive control component is working, a control signal is sent to the drive module 9 through the main control module 10 to control the on and off of the MOS tube in the drive module 9 to control the current of each phase of the motor, drive the main body and the magnetic axis component 1 to move relative to each other, and the sampling resistor is used to collect the output current signal of each phase of the motor, and feed the signal back to the main control module 10. The main control module 10 adjusts the main control signal sent to the drive module 9 according to the feedback current signal. When relative movement occurs between the main body of the motor assembly and the magnetic axis component 1, the two Hall sensors 12 return corresponding signals according to the magnetic field strength. In this embodiment, linear Hall elements are used. The sinusoidal signals emitted by the two linear Hall elements have a phase difference of 1 / 4 cycle. The signal is transmitted to the main control module 10. In the main control module 10, the relative position between the main body of the motor and the magnetic axis component 1 is calculated by analyzing the phase difference between the two groups of signals, and the position and speed signals are obtained to realize closed-loop control of the motor position and speed.

Claims

1. A drive-control integrated direct-drive motor system, characterized in that: The invention comprises a motor assembly and a drive control component, wherein the motor assembly comprises a main body and a magnetic axis component (1), and the drive control component is arranged inside the main body, and is used to drive the main body of the motor assembly and the magnetic axis component (1) to generate relative motion, and at the same time, the drive control component is also used to detect the relative position between the main body and the magnetic axis component (1) during use, and to feed back a position signal to the drive control component; The main body portion comprises a motor housing, the motor housing comprises a housing side plate (3), both ends of the housing side plate (3) are respectively provided with housing end plates (2), a coil winding (7) is provided inside the motor housing, the coil winding (7) is sleeved on the outside of a winding support shaft (8), the winding support shaft (8) is provided between the housing end plates (2), the drive control component is provided above the winding support shaft (8), a cover plate (4) is provided at the opening above the motor housing, and the cover plate (4) is used to encapsulate the drive control component inside the main body portion; The magnetic axis assembly (1) is arranged inside the winding support shaft (8), and the magnetic axis assembly (1) comprises a magnetic axis outer sleeve, a plurality of magnetic steels are arranged inside the magnetic axis outer sleeve, and magnetic axis end covers are arranged at both ends of the magnetic axis outer sleeve, and the magnetic axis end covers are used to fix the magnetic steels inside the magnetic axis outer sleeve; The drive control component is integrated on a circuit board (6), and comprises a drive module (9), a main control module (10), a communication module (11) and a Hall sensor (12). Two Hall sensors (12) are provided, and the connection line of the two Hall sensors (12) is parallel to the axis direction of the magnetic axis component (1). The Hall sensor (12) is used to detect the relative position between the main part of the motor assembly and the magnetic axis component (1) and transmit the collected signal to the main control module (10).

2. The drive-control integrated direct-drive motor system according to claim 1, characterized in that: A step is provided above the shell end plate (2), two ends of the drive control assembly are arranged on the step of the shell end plate (2), and the cover plate (4) is fixedly connected to the shell end plates (2) at the two ends by means of screws.

3. The drive-control integrated direct-drive motor system according to claim 1, characterized in that: The main control module (10) comprises a microprocessor and a voltage reduction module. The microprocessor stores a main control code internally. The voltage reduction module is used to provide the voltage required by the microprocessor. The microprocessor is used to receive signals collected by the Hall sensor (12) and to send control signals to the drive module (9).

4. The drive-control integrated direct-drive motor system according to claim 1, characterized in that: The driving module (9) comprises a plurality of MOSFETs and sampling resistors. The MOSFETs control the current on each phase of the motor under the control of a control signal sent by the main control module (10). The sampling resistors are used to collect output current signals of each phase of the motor and transmit the collected signals to the main control module (10).

5. The drive-control integrated direct-drive motor system according to claim 1, characterized in that: The main control module (10) further comprises a step-down module, an amplifier, an indicator light, a reset button and a main interface. The step-down module is used to provide voltage to the main control module (10), the amplifier is used to amplify the collected signal, the indicator light is used to display the working status, the reset button is used to achieve a reset function, the main interface is connected to an external power supply to supply power to the circuit board (6), and is connected to the main control module (10) and the communication module (11) to perform data transmission. The cover plate (4) is provided with an aviation plug (5), and the aviation plug (5) is connected to the main interface on the main control module (10).

6. The drive-control integrated direct-drive motor system according to claim 1, characterized in that: The communication module (11) is used to realize the connection between the motor assembly and external hardware.

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