A precisely controllable high speed motor drive

Abstract

The application discloses a high-speed motor driving device with accurate control, which comprises a motor body, a counting module, a signal receiving module, a signal processing module, a driving control module and a transmission mechanism, the counting module is arranged on the motor body and is used for counting the rotation turns of the motor body, and the signal receiving module is used for receiving the data signals collected by the counting module, the motor body is arranged, the counting module is arranged on the motor body and is used for counting the rotation turns of the motor body, the collected data is collected through the signal receiving module, the collected data is analyzed and processed through the signal processing module, the motor body is controlled to stop working through the control module when the calibration value is reached, and the high-speed motor driving device has the characteristics of high convenience, high sensitivity, high reliability, high stability, high accuracy and high flexibility.

Description

Technical Field

[0001] This invention relates to the field of motor control technology, specifically to a high-speed motor drive device that can be precisely controlled. Background Technology

[0002] Micro high-speed motors are essential basic products in various fields such as industrial automation, agricultural modernization, weaponry modernization, office automation, and home modernization. Their application range is very wide and will be further expanded with the development of the economy and technological progress.

[0003] Micro-high-speed motors refer to motors with a diameter less than 160mm, a rated power less than 750W, or those with special performance or applications. Micro-high-speed motors integrate high technologies from multiple disciplines, including motors, microelectronics, power electronics, computers, automatic control, precision machinery, and new materials. The application of electronic and new materials technologies, in particular, has promoted the technological advancement of micro-high-speed motors. Micro-high-speed motors come in numerous varieties (over 5000 types), with complex specifications and a wide range of market applications, covering all aspects of the national economy, defense equipment, and daily life. They can be found wherever electric drive is required. The manufacturing process of micro-high-speed motors involves many steps, including precision machinery, fine chemicals, micro-machining, magnetic material processing, winding manufacturing, and insulation treatment. It requires a large number of high-precision process equipment, and a series of precise testing instruments are needed to ensure product quality. Therefore, it is a highly investment-intensive industry.

[0004] However, due to their high-speed characteristics, micro high-speed motors are often difficult to control during use. For example, in the production process, under-processing or over-processing frequently occurs. Therefore, how to accurately control high-speed motors has become an urgent problem to be solved.

[0005] To address this, a high-speed motor drive device with precise control is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a high-speed motor drive device that can be precisely controlled, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-speed motor drive device with precise control, comprising a motor body, a counting module, a signal receiving module, a signal processing module, a drive control module, and a transmission mechanism. The counting module is disposed on the motor body and is used to count the number of rotations of the motor body. The signal receiving module is used to receive data signals collected by the counting module. The signal processing module is used to process and analyze the data signals and issue instructions to the control module. The control module is used to control the start and stop of the motor body.

[0008] Preferably, the counting module includes a mounting plate, which is fixedly connected to one end of the motor body near the output shaft. A rotating disk is rotatably mounted on the mounting plate, and a through groove is provided through the end face of the rotating disk. There are multiple through grooves, and the through grooves are evenly distributed in a ring around the rotation axis of the rotating disk. A sensor for detecting the passage of the through groove is fixedly connected to the surface of the mounting plate, and the sensor is electrically connected to the signal receiving module.

[0009] Preferably, the transmission mechanism includes a drive gear and a transmission gear. The drive gear is fixedly connected to the output shaft of the motor body, and the transmission gear is fixedly connected to one side surface of the rotating disk. The transmission gear is coaxial with the rotating disk, and the drive gear meshes with the transmission gear.

[0010] Preferably, the number of through slots is four, and a baffle is provided on the side surface of the rotating disk away from the transmission gear.

[0011] Preferably, a fixed shaft is fixedly connected to the mounting plate, the fixed shaft passing through the end face of the rotating disk and the transmission gear, and the rotating disk and the transmission gear are respectively rotatably connected to the fixed shaft.

[0012] Preferably, a limiting plate is fixedly connected to the end of the fixed shaft away from the mounting plate, a movable sleeve is sleeved on the outer side of the fixed shaft, a limiting gear is fixedly connected to the side surface of the rotating disk away from the transmission gear, a positioning tooth is fixedly connected to the inner circumferential surface of the movable sleeve, a limiting spring is provided between the movable sleeve and the limiting plate, and the baffle is fixedly connected to the outer circumferential surface of the movable sleeve.

[0013] Compared with the prior art, the beneficial effects of the present invention are: a high-speed motor drive device that can be precisely controlled, by setting a motor body, setting a counting module on the motor body to count the number of rotations of the motor body, collecting the collected data through a signal receiving module, analyzing and processing the collected data through a signal processing module, and controlling the motor body to stop working when the calibrated value is reached, which has the characteristics of high convenience, high sensitivity, high reliability, high stability, high accuracy, and high flexibility. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the working principle of the present invention;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0016] Figure 3 This is a top view of the structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the rotating disk structure of the present invention;

[0018] Figure 5 This is a top view cross-sectional structural diagram of the movable sleeve of the present invention.

[0019] In the diagram: 1-Motor body, 2-Signal receiving module, 3-Signal processing module, 4-Control module, 5-Mounting plate, 6-Rotating disk, 7-Through slot, 8-Sensor, 9-Driving gear, 10-Transmission gear, 11-Baffle, 12-Fixed shaft, 13-Limiting plate, 14-Movable sleeve, 15-Limiting gear, 16-Positioning tooth, 17-Limiting spring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-5 This invention provides a technical solution: a high-speed motor drive device with precise control, comprising a motor body 1, a counting module, a signal receiving module 2, a signal processing module 3, a drive control module 4, and a transmission mechanism. The counting module is mounted on the motor body 1 and is used to count the number of rotations of the motor body 1. The signal receiving module 2 is used to receive data signals collected by the counting module. The signal processing module 3 is used to process and analyze the data signals and issue commands to the control module 4. The control module 4 is used to control the start and stop of the motor body 1. In specific operation, a target number of rotations can be preset. When the motor body 1 rotates, the signal processing module 3 detects rapid rotation of the motor body 1. When the target number of revolutions is reached, the control module 4 controls the speed of the motor body 1 to decrease. When the target number of revolutions is reached, the control module 4 controls the motor body 1 to stop working, thereby achieving precise control of the motor body 1. The signal processing module 3 is an FPGA. The signal receiving module 2 is equipped with a signal detection module and a voltage conversion module. The signal receiving module 2 receives the speed data transmitted by the optical counting module. The speed data is detected by the signal detection module and converted by the voltage conversion module to obtain the converted data signal information. The signal receiving module 2 transmits the data signal information to the signal processing module 3. The signal receiving module 2, the signal processing module 3, and the control module 4 are all existing technologies and will not be described in detail.

[0022] Specifically, the counting module includes a mounting plate 5, such as Figure 2 As shown, the mounting plate 5 is a long strip-shaped plate, and it is fixedly connected to the end of the motor body 1 near the output shaft. The output shaft of the motor body 1 passes through the end face of the mounting plate 5 to ensure that the mounting plate 5 does not affect the rotation of the output shaft of the motor body 1. A rotating disk 6 is rotatably mounted on the mounting plate 5. The rotating disk 6 is located on the side of the mounting plate 5 opposite to the motor body 1. The rotating disk 6 is a circular plate, and a through groove 7 is provided through the end face of the rotating disk 6. Figure 3 As shown, the through groove 7 is located at the edge of the rotating disk 6. The through groove 7 is elongated to facilitate detection by the sensor 8. There are multiple through grooves 7, and they are evenly distributed in a ring around the rotation axis of the rotating disk 6. The surface of the mounting plate 5 is fixedly connected to the sensor 8 for detecting the passage of the through groove 7. The sensor 8 is electrically connected to the signal receiving module 2. When the rotating disk 6 is driven to rotate by the transmission mechanism, when the through groove 7 passes through the sensor 8, the sensor 8 detects a signal output. The sensor 8 transmits the signal to the signal processing module 3 through the signal receiving module 2. Then, by detecting the number of times the through groove 7 passes through the sensor 8, the number of rotations of the motor body 1 is detected. The sensor 8 has a fan-shaped structure and a groove is provided on the side wall. The edge of the rotating disk 6 is located inside the groove, and the sensor 8 is fixedly connected to the mounting plate 5 through a connecting rod.

[0023] Specifically, the transmission mechanism includes a drive gear 9 and a transmission gear 10. In order to ensure that the rotation speed of the rotating disk 6 and the output shaft of the motor body 1 are consistent, the drive gear 9 and the transmission gear 10 are set with the same module, thereby ensuring that when the motor body 1 rotates, the rotation speed of the rotating disk 6 and the motor body 1 are consistent. The drive gear 9 is fixedly connected to the output shaft of the motor body 1, and the transmission gear 10 is fixedly connected to one side surface of the rotating disk 6. The transmission gear 10 is coaxially arranged with the rotating disk 6, and the drive gear 9 and the transmission gear 10 mesh with each other.

[0024] Specifically, there are four through slots 7, and a baffle 11 is rotatably provided on the side of the rotating disk 6 away from the transmission gear 10, such as... Figure 4 As shown, the baffle 11 consists of two sector-shaped plates, which are symmetrically arranged with the rotation axis of the rotating disk 6 as the center, ensuring that the rotating disk 6 can rotate smoothly. Under normal conditions, when the rotating disk 6 is rotated to the position shown... Figure 3The positions shown ensure that the four through slots 7 are not blocked by the baffle 11. Thus, when the sensor 8 detects that the through slot 7 has passed four times, it is recorded as one rotation of the output shaft of the motor body 1, ensuring accurate detection of the speed of the motor body 1. When the speed of the motor body 1 is too high, in order to ensure accurate detection by the sensor 8, the baffle 11 can be rotated to cover two of the through slots 7. Thus, when the sensor 8 detects that the through slot 7 has passed both sides, it is recorded as one rotation of the motor body 1. Therefore, even if the speed of the motor body 1 is too high, the detection performance of the sensor 8 will not be reduced.

[0025] Specifically, a fixed shaft 12 is fixedly connected to the mounting plate 5, such as... Figure 2 As shown, the fixed shaft 12 is fixedly connected to the surface of the mounting plate 5 away from the motor body 1. The axis of the fixed shaft 12 is perpendicular to the plane of the mounting plate 5. The fixed shaft 12 passes through the end face of the rotating disk 6 and the transmission gear 10. Therefore, the rotating disk 6 and the transmission gear 10 are rotatably connected to the surface of the mounting plate 5 through the fixed shaft 12, and the rotating disk 6 and the transmission gear 10 are rotatably connected to the fixed shaft 12 respectively.

[0026] Specifically, a limiting plate 13 is fixedly connected to the end of the fixed shaft 12 away from the mounting plate 5. The limiting plate 13 is a circular plate with an outer diameter larger than that of the fixed shaft 12, and is coaxial with the fixed shaft 12. A movable sleeve 14 is sleeved on the outer side of the fixed shaft 12, with a certain gap between the movable sleeve 14 and the fixed shaft 12, and is coaxial with the fixed shaft 12. The movable sleeve 14 can slide up and down along the fixed shaft 12. A limiting gear 15 is fixedly connected to the surface of the rotating disk 6 away from the transmission gear 10. The limiting gear 15 is coaxial with the rotating disk 6, and the fixed shaft 12 passes through the end face of the limiting gear 15. When the rotating disk 6 rotates, it also drives the limiting gear 15 to rotate synchronously. A positioning tooth 16 is fixedly connected to the inner circumferential surface of the movable sleeve 14. A limiting spring 17 is provided between the movable sleeve 14 and the limiting plate 13. The limiting spring 17 is sleeved on the outside of the fixed shaft 12, and both ends of the limiting spring 17 are in contact with the limiting plate 13 and the movable sleeve 14, respectively. The limiting spring 17 is in a compressed state. Under the action of the limiting spring 17, the movable sleeve 14 is positioned closer to the rotating disk 6. The movable sleeve 14 is sleeved on the outside of the limiting gear 15. At this time, the positioning tooth 16 is inserted into the teeth of the limiting gear 15, so that the movable sleeve 14 and the rotating disk 6 rotate synchronously. When the position of the baffle 11 is adjusted, the position of the baffle 11 will not shift during the rotation of the rotating disk 6, and the limiting gear 15 is in uniform contact with the inner circumferential surface of the movable sleeve 14, ensuring that the movable sleeve 14 is always coaxial with the fixed shaft 12, and preventing vibration when the rotating disk 6 rotates. Figure 3As shown, a column is fixedly connected to the upper surface of the movable sleeve 14. The column is also sleeved on the outside of the fixed shaft 12, which facilitates its control. When it is necessary to change the deflection angle of the baffle 11, the column is held and slid upward along the fixed shaft 12. The limiting spring 17 is compressed. At this time, the movable sleeve 14 disengages from the limiting gear 15, so that the positioning tooth 16 disengages from the limiting gear 15. After rotating to a suitable angle, the column is released. Under the action of the limiting spring 17, the movable sleeve 14 is re-sleeved on the outside of the limiting gear 15, so that the positioning tooth 16 and the limiting gear 15 re-engage, so that the position of the movable sleeve 14 and the rotating disk 6 is relatively fixed. The baffle 11 is fixedly connected to the outer circumferential surface of the movable sleeve 14.

[0027] Working Principle: In this invention, a target number of revolutions is preset. When the motor body 1 rotates, the signal processing module 3 detects that the motor body 1 is about to reach the target number of revolutions. The control module 4 then controls the motor body 1 to reduce its speed until the target number of revolutions is reached. At this point, the control module 4 stops the motor body 1, thus achieving precise control of the motor body 1. Under normal conditions, the four through slots 7 are not blocked by the baffle 11. Therefore, when the sensor 8 detects that the through slots 7 have passed through four times, it is recorded as one revolution of the output shaft of the motor body 1, ensuring accurate detection of the motor body 1's speed. However, when the motor body 1's speed is too high, to ensure accurate detection by the sensor 8, the baffle 11 can be rotated to prevent it from being blocked. The two through slots 7 are covered, so when the sensor 8 detects that the through slot 7 has passed both sides, it is recorded as one revolution of the motor body 1. Therefore, even if the speed of the motor body 1 is too high, the detection performance of the sensor 8 will not be reduced. When it is necessary to change the deflection angle of the baffle 11, when the column is held and slid upward along the fixed shaft 12, the limiting spring 17 is compressed. At this time, the movable sleeve 14 is disengaged from the limiting gear 15, so that the positioning tooth 16 is disengaged from the limiting gear 15. After rotating to a suitable angle, the column is released. Under the action of the limiting spring 17, the movable sleeve 14 is re-sleeved on the outside of the limiting gear 15, so that the positioning tooth 16 and the limiting gear 15 are re-engaged, so that the position of the movable sleeve 14 and the rotating disk 6 is relatively fixed.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed motor drive device capable of precise control, comprising a motor body (1), characterized in that: It also includes a counting module, a signal receiving module (2), a signal processing module (3), a drive control module (4), and a transmission mechanism. The counting module is installed on the motor body (1) and is used to count the number of rotations of the motor body (1). The signal receiving module (2) is used to receive the data signal collected by the counting module. The signal processing module (3) is used to process and analyze the data signal and issue instructions to the control module (4). The control module (4) is used to control the start and stop of the motor body (1). The counting module includes a mounting plate (5), which is fixedly connected to one end of the motor body (1) near the output shaft. A rotating disk (6) is rotatably mounted on the mounting plate (5). A through groove (7) is provided through the end face of the rotating disk (6). There are multiple through grooves (7), and the through grooves (7) are evenly distributed in a ring around the rotation axis of the rotating disk (6). A sensor (8) for detecting the passage of the through groove (7) is fixedly connected to the surface of the mounting plate (5). The sensor (8) is electrically connected to the signal receiving module (2). The transmission mechanism includes a drive gear (9) and a transmission gear (10). The drive gear (9) is fixedly connected to the output shaft of the motor body (1), and the transmission gear (10) is fixedly connected to one side surface of the rotating disk (6). The transmission gear (10) is coaxially arranged with the rotating disk (6), and the drive gear (9) meshes with the transmission gear (10). The number of through slots (7) is four, and a baffle (11) is rotatably provided on the side surface of the rotating disk (6) away from the transmission gear (10); A fixed shaft (12) is fixedly connected to the mounting plate (5). The fixed shaft (12) passes through the end face of the rotating disk (6) and the transmission gear (10), and the rotating disk (6) and the transmission gear (10) are rotatably connected to the fixed shaft (12) respectively. A limiting plate (13) is fixedly connected to one end of the fixed shaft (12) away from the mounting plate (5). A movable sleeve (14) is sleeved on the outer side of the fixed shaft (12). A limiting gear (15) is fixedly connected to the side surface of the rotating disk (6) away from the transmission gear (10). A positioning tooth (16) is fixedly connected to the inner circumferential surface of the movable sleeve (14). A limiting spring (17) is provided between the movable sleeve (14) and the limiting plate (13). The baffle (11) is fixedly connected to the outer circumferential surface of the movable sleeve (14).

Images