Intelligent torque tracking type motor power saving system

Abstract

The invention relates to the field of motors, in particular to an intelligent torque tracking type motor power saving system which comprises a motor, a torque monitoring device installed on an output shaft of the motor and a processing module installed on the motor. The processing module calculates the torque value of the output shaft of the motor according to the monitoring signal, and then controls the power supply system to supply power to the motor according to the torque value, thereby achieving the intelligent power saving of the motor. The motor comprises a shell with a built-in stator and a rotor rotating in the shell, an output shaft is arranged at the front end of the center of the rotor, and the output shaft penetrates through a front blocking plate of the shell. The power supply quantity can be controlled according to the load torque, so that intelligent power saving is realized.

Description

Technical Field

[0001] The invention relates to the field of motors, and in particular to an intelligent torque tracking motor power saving system. Background Art

[0002] The motor is an important device that converts electrical energy into mechanical kinetic energy. It is widely used due to its low cost, durability, high reliability and ease of use. However, in actual use, the output torque of the motor often does not match the load torque, resulting in low motor efficiency and waste of electrical energy. Therefore, there is a need for a motor device that can control the power supply according to the load torque to achieve intelligent power saving. Summary of the invention

[0003] The purpose of the present invention is to provide an intelligent torque tracking motor power saving system, which can control the power supply according to the load torque, thereby performing intelligent power saving.

[0004] The purpose of the present invention is achieved through the following technical solutions: An intelligent torque tracking motor power saving system includes a motor, a torque monitoring device installed on the motor output shaft, and a processing module unit installed on the motor, wherein the torque monitoring device sends a monitoring signal to the processing module unit, and the processing module unit calculates the torque value of the motor output shaft according to the monitoring signal, and then the processing module unit controls the power supply of the power supply system to the motor according to the torque value, thereby forming intelligent power saving for the motor; The motor comprises a housing with a built-in stator, and a rotor rotating in the housing, an output shaft is provided at the front end of the rotor center, and the output shaft passes through the front blocking plate of the housing; The torque monitoring device includes two ring plates fixed side by side on the output shaft, linear Hall sensors and permanent magnets are installed on opposite surfaces of the two ring plates, and the linear Hall sensors receive magnetic field changes of the permanent magnets and output monitoring signals to the processing module unit.

[0005] Furthermore, it also includes a current module for monitoring the power supply current of the power supply system, a voltage module for monitoring the power supply voltage of the power supply system, and a thyristor voltage regulator module connected to the motor input end for adjusting the motor input voltage. The current module and the voltage module transmit the monitoring data to the processing module unit, so that the processing module unit controls the thyristor voltage regulator module to adjust the motor input voltage.

[0006] Furthermore, a key block is provided on the output shaft, and one end of the key block is fixedly connected to a ring plate located at the front end and mounted with a permanent magnet.

[0007] Furthermore, a balancing shaft is provided at the rear end of the center of the rotor, and a fan is installed on the balancing shaft. When the motor is running, air is blown toward the rotor for heat dissipation. A rear cover is rotated through the rear end of the balancing shaft, and three mounting blocks are circumferentially provided at the rear port of the outer shell. The rear cover is buckled into the rear port of the outer shell and is threadedly fixed to the three mounting blocks by three screws.

[0008] Furthermore, a ring mesh plate is fitted on the inner side of the front blocking plate; a plurality of mesh plates are provided on the rear cover, and a plurality of ventilation holes are provided on the front blocking plate, so that air can enter through the mesh plates and flow out from the ventilation holes to dissipate heat from the motor.

[0009] Furthermore, two conical wheels I are installed opposite to each other on the balancing shaft, and a sliding seat is provided for axial limiting sliding at the rear end of the shell, and multiple transmission shafts are rotated on the sliding seat. A torsion spring is provided between each transmission shaft and the sliding seat, and a conical wheel II is installed on each transmission shaft near the end of the balancing shaft through a one-way bearing. Conical wheel II is located between the two conical wheels I. When the motor is braked, the sliding seat slides forward to make the conical wheel II contact with the conical wheel I at the front end, so that the torsion spring elastically torsional stores energy. When the motor is started, the sliding seat slides backward quickly to make the conical wheel II contact with the conical wheel I at the rear end. The elastic force of the torsion spring will push the conical wheel I at the rear end to drive the rotor to rotate, so that the motor braking energy is stored, and the stored energy is used to assist the motor starting, thereby saving starting electricity.

[0010] Furthermore, a connecting frame is provided at the rear end of the sliding seat, and a transmission sleeve is rotated at the center of the connecting frame. The transmission sleeve is arranged on the balance shaft, and a spring is provided between the transmission sleeve and the cone wheel I at the rear end. An electromagnet is provided inside the outer shell. When the motor brakes, the processing module unit controls the electromagnet to start the magnetic attraction sliding seat to slide forward. When the motor starts, the processing module unit controls the electromagnet to close, and the sliding seat slides backward quickly under the influence of the spring force.

[0011] Furthermore, three electromagnets are provided, and the three electromagnets correspond to the three mounting blocks one by one.

[0012] Furthermore, a spacer sleeve is provided between the two cone wheels I and between the cone wheel I at the front end and the rotor.

[0013] Furthermore, the system also includes a speed detector for detecting the speed of the motor output shaft to obtain a motor speed signal; a current detector for detecting the motor current to obtain a motor current signal; a power detector for detecting the motor power to obtain a motor power signal; the processing module unit 405 can receive the speed signal, current signal, and power signal in real time for storage, and analyze a large amount of historical data, automatically identify and predict the operating trend of the motor, and automatically adjust the control strategy to adapt to different working conditions and load changes, to ensure that the motor can achieve the best operating state under different working conditions.

[0014] Beneficial effects of the present invention: The load torque of the motor output shaft is monitored by a linear Hall sensor and a permanent magnet, and then the torque value of the motor output shaft is calculated by the processing module unit according to the monitoring signal. Then, the processing module unit controls the power supply of the power supply system to the motor according to the torque value, thereby forming an intelligent power saving for the motor. When the motor brakes, the bevel wheel II contacts the bevel wheel I at the front end, and the rotating bevel wheel I drives the bevel wheel II to drive the transmission shaft to rotate, thereby storing the kinetic energy of the motor braking and deceleration in the elastic potential energy of the torsion spring. When the motor starts, the bevel wheel II contacts the bevel wheel I at the rear end, and the elastic potential energy of the torsion spring causes the bevel wheel II to drive the bevel wheel I at the rear end to drive the balance shaft to rotate, thereby forming an auxiliary rotor rotation, reducing the initial rotation energy consumption of the rotor, and further achieving the purpose of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 and Figure 2 It is a structural diagram of the intelligent torque tracking motor power saving system; Figure 3 It is a partial structural diagram of the intelligent torque tracking motor power saving system; Figure 4 It is a schematic diagram of the structure of the rotor; Figure 5 yes Figure 3 A schematic diagram of the local structure; Figure 6 and Figure 7 It is a schematic diagram of the structure of the shell; Figure 8 It is a schematic diagram of the partial cross-sectional structure of the shell; Fig. 9 and Fig.10 It is a structural schematic diagram of the sliding seat; Fig.11 It is a schematic diagram of the structure of the back cover; Fig.12 It is a structural diagram of the ring network board.

[0016] In the figure: Rotor 101; output shaft 102; balance shaft 103; cone wheel I 104; key block 105; ring plate 201; linear Hall sensor 202; permanent magnet 203; spacer sleeve 301; transmission sleeve 302; spring 303; fan 304; housing 401; front blocking plate 402; ventilation hole 403; mounting block 404; processing module unit 405; electromagnet 406; sliding seat 501; connecting frame 502; transmission shaft 503; torsion spring 504; cone wheel II 505; rear cover 601; mesh plate 602; ring mesh plate 603. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1-12 As shown, the intelligent torque tracking motor power saving system controls the power supply according to the load torque, thereby performing intelligent power saving. An intelligent torque tracking motor power saving system includes a motor, a torque monitoring device installed on the motor output shaft, and a processing module unit 405 installed on the motor, wherein the torque monitoring device sends a monitoring signal to the processing module unit 405, and the processing module unit 405 calculates the torque value of the motor output shaft according to the monitoring signal, and then the processing module unit 405 controls the power supply of the power supply system to the motor according to the torque value, thereby forming intelligent power saving for the motor; The motor comprises a housing 401 with a built-in stator, and a rotor 101 rotating in the housing 401. An output shaft 102 is provided at the front end of the center of the rotor 101. The output shaft 102 passes through a front blocking plate 402 of the housing 401. The torque monitoring device includes two ring plates 201 installed side by side and fixed on the output shaft 102. The linear Hall sensors 202 and permanent magnets 203 are installed on opposite surfaces of the two ring plates 201. The linear Hall sensors 202 receive the magnetic field changes of the permanent magnets 203 and output monitoring signals to the processing module unit 405.

[0020] When in use, the motor is fixed by the housing 401, and the output shaft 102 is used to connect the load. When the motor starts, the rotor 101 rotates in the housing 401, and then drives the output shaft 102 to rotate. Since there is a load on the output shaft 102, the output shaft 102 produces circumferential deformation, so that the two ring plates 201 located on the output shaft 102 are misaligned, so that the linear Hall sensor 202 and the permanent magnet 203 are misaligned, and then the magnetic field of the permanent magnet 203 received by the linear Hall sensor 202 changes, and then the signal sent by the linear Hall sensor 202 changes. The processing module unit 405 calculates the torque value of the motor output shaft through the received monitoring signal, and then the processing module unit 405 controls the power supply of the power supply system to the motor according to the torque value, so that the output torque of the motor matches the load torque, thereby achieving intelligent power saving of the motor.

[0021] Further: It also includes a current module for monitoring the power supply current of the power supply system, a voltage module for monitoring the power supply voltage of the power supply system, and a thyristor voltage regulator module connected to the motor input end for adjusting the motor input voltage. The current module and the voltage module transmit the monitoring data to the processing module unit 405. The processing module unit 405 processes the monitoring data and the monitoring signal of the linear Hall sensor 202, and then the processing module unit 405 controls the thyristor voltage regulator module to adjust the motor input voltage, thereby further saving power.

[0022] Further: When the output shaft 102 is connected to the load device, a key is mostly used, so a key block 105 is provided on the output shaft 102. The output shaft 102 is limitedly connected to the load device through the key block 105, and then fixedly connected to the ring plate 201 located at the front end and equipped with the permanent magnet 203 through one end of the key block 105, so that the ring plate 201 equipped with the permanent magnet 203 can keep synchronization with the load device, and then better deform and dislocate with the ring plate 201 of another linear Hall sensor 202, so that the monitoring between the linear Hall sensor 202 and the permanent magnet 203 is more accurate.

[0023] like Figure 1-12 As shown, an embodiment of the intelligent torque tracking motor power saving system for cooling the motor when in use is described: A balancing shaft 103 is provided at the rear end of the center of the rotor 101, and a fan 304 is installed on the balancing shaft 103. When the motor is running, air is blown toward the rotor 101 for heat dissipation. A rear cover 601 is rotated through the rear end of the balancing shaft 103, and three mounting blocks 404 are circumferentially provided at the rear port of the shell 401. The rear cover 601 is buckled into the rear port of the shell 401 and is threadedly fixed to the three mounting blocks 404 by three screws.

[0024] The balancing shaft 103 is coaxially arranged with the rotor 101 and the output shaft 102, and the rotation of the output shaft 102 on the front blocking plate 402 and the rotation of the balancing shaft 103 on the rear cover 601 form support for the rotor 101, ensuring that the rotor 101 can rotate in the housing 401, and through the setting of the fan 304, when the rotor 101 rotates, the fan 304 can blow air to the rotor 101 to dissipate heat.

[0025] Further: The rear cover 601 is provided with a plurality of mesh plates 602, and the front blocking plate 402 is provided with a plurality of ventilation holes 403, so that when the fan 304 rotates, air can be sucked into the motor through the plurality of mesh plates 602, and then flow out through the ventilation holes 403 through the gap between the rotor 101 and the stator, thereby further improving the efficiency and effect of heat dissipation of the motor. At the same time, the mesh plates 602 can prevent impurities from entering the motor.

[0026] Further: By fitting the ring mesh plate 603 on the inner side of the front blocking plate 402 , it is possible to prevent impurities from entering the motor through the ventilation holes 403 .

[0027] like Figure 1-12 As shown, the intelligent torque tracking motor power saving system recovers the motor kinetic energy during braking, and when the motor starts, the recovered kinetic energy assists the motor to start, further forming an energy-saving embodiment for explanation: Two cone wheels I104 are oppositely mounted on the balancing shaft 103, a sliding seat 501 is axially limited and slidable inside the rear end of the housing 401, a transmission shaft 503 rotates on the sliding seat 501, a torsion spring 504 is arranged between the transmission shaft 503 and the sliding seat 501, a cone wheel II505 is mounted on the end of the transmission shaft 503 close to the balancing shaft 103 through a one-way bearing, and the cone wheel II505 is located between the two cone wheels I104; The rear end of the sliding seat 501 is provided with a connecting frame 502, and a transmission sleeve 302 is rotated at the center of the connecting frame 502. The transmission sleeve 302 is sleeved on the balance shaft 103, and a spring 303 is provided between the transmission sleeve 302 and the cone wheel I 104 at the rear end. An electromagnet 406 is provided inside the housing 401; When the motor brakes, the processing module unit 405 controls the electromagnet 406 to start generating magnetic force, and the magnetic sliding seat 501 slides forward. The sliding seat 501 slides forward to make the bevel wheel II 505 contact the bevel wheel I 104 at the front end. The motor that is rotating at a reduced speed will drive the bevel wheel II 505 through the bevel wheel I 104 at the front end to drive the transmission shaft 503 to rotate relative to the sliding seat 501, so that the torsion spring 504 is elastically twisted, and then the kinetic energy of the motor braking process is converted into the elastic potential energy of the torsion spring 504 for storage. In this process, the elastic force of the torsion spring 504 can further brake the motor quickly. When the motor starts, the processing module unit 405 controls the electromagnet 406 to close, and the sliding seat 501 loses the magnetic attraction of the electromagnet 406, and slides backward quickly under the influence of the elastic force of the spring 303, and drives the bevel wheel II 505 to contact the bevel wheel I 104 at the rear end. The torsion spring 504 that stores elastic potential energy will release the elastic force, so that the transmission shaft 503 drives the bevel wheel II 505 to rotate in the opposite direction, and then drives the bevel wheel I 104 at the rear end to rotate, so that the rotor 101 starts to rotate, and assists the motor to start, so that the elastic potential energy obtained by the torsion spring 504 through braking recovery conversion is converted into kinetic energy for motor starting again, thereby achieving the purpose of saving motor starting electric energy.

[0028] Among them, affected by the elastic force of the spring 303, when the electromagnet 406 is closed, the bevel wheel II 505 is always in contact with the bevel wheel I 104 at the rear end. Since a one-way bearing is provided between the bevel wheel II 505 and the transmission shaft 503, when the bevel wheel II 505 assists the rotor 101 to rotate and the rotor 101 rotates rapidly faster than the bevel wheel II 505, the bevel wheel II 505 performs idling motion on the transmission shaft 503 along with the bevel wheel I 104 at the rear end. Therefore, during braking, when the bevel wheel II 505 contacts the bevel wheel I 104 at the front end, the two rotate in opposite directions, further braking the motor until the bevel wheel II 505 first drops to zero speed and then rotates in the opposite direction to store energy.

[0029] By evenly disposing a plurality of transmission shafts 503 on the sliding seat 501, a plurality of cone wheels II 505 work together to better convert and store the kinetic energy after the motor is braked, thereby better assisting the motor in starting and better saving electricity.

[0030] Further: The electromagnets 406 are provided with three, and the three electromagnets 406 correspond to the three mounting blocks 404 one by one, so that the electromagnets 406 can be wired and controlled through the three mounting blocks 404. Further: A spacer sleeve 301 is provided between the two cone wheels Ⅰ104 and between the cone wheel Ⅰ104 at the front end and the rotor 101. The spacer sleeve 301 can limit the axial position of the two cone wheels Ⅰ104 and the rotor 101 and keep them stationary.

[0031] Further: The system also includes a speed detector for detecting the speed of the motor output shaft to obtain a motor speed signal; a current detector for detecting the motor current to obtain a motor current signal; a power detector for detecting the motor power to obtain a motor power signal; the processing module unit 405 can receive the speed signal, current signal, and power signal in real time for storage, and analyze a large amount of historical data, automatically identify and predict the operating trend of the motor, and automatically adjust the control strategy to adapt to different working conditions and load changes, to ensure that the motor can reach the best operating state under different working conditions.

[0032] An intelligent torque tracking motor power saving system, which works in coordination with the processing module unit 405 and the torque monitoring device, enables the system to effectively complete the task of driving the motor through torque intelligent power saving; Moreover, the intelligent torque tracking motor power saving system has a high level of intelligence. It uses intelligent algorithms to monitor the running status of the motor in real time through the speed detector, current detector, and power detector, and automatically adjusts the working parameters according to the actual situation. This intelligent design enables the system to better adapt to various complex working environments and improves the stability and reliability of the motor.

[0033] Of course, the above description is not a limitation of the instructions for use, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the scope of protection of the present invention.

Claims

1. Intelligent torque tracking motor power saving system, characterized by: It comprises a motor, a torque monitoring device installed on the motor output shaft, and a plurality of processing module units (405) installed in a bypass independent box on the motor, wherein the torque monitoring device sends a monitoring signal to the processing module unit (405), the processing module unit (405) calculates the torque value of the motor output shaft according to the monitoring signal, and then the processing module unit (405) controls the power supply of the power supply system to the motor according to the torque value, thereby realizing intelligent power saving for the motor; The motor comprises a housing (401) with a built-in stator, and a rotor (101) rotating in the housing (401); an output shaft (102) is provided at the front end of the center of the rotor (101); and the output shaft (102) passes through a front blocking plate (402) of the housing (401); The torque monitoring device comprises two ring plates (201) mounted side by side and fixed on an output shaft (102); linear Hall sensors (202) and permanent magnets (203) are mounted on opposite surfaces of the two ring plates (201); the linear Hall sensors (202) receive magnetic field changes of the permanent magnets (203) and output monitoring signals to a processing module unit (405).

2. The intelligent torque tracking motor power saving system according to claim 1, characterized in that: It also includes a current module for monitoring the power supply current of the power supply system, a voltage module for monitoring the power supply voltage of the power supply system, and a thyristor voltage regulating module connected to the motor input end for regulating the motor input voltage. The current module and the voltage module transmit monitoring data to the processing module unit (405), so that the processing module unit (405) controls the thyristor voltage regulating module to regulate the motor input voltage.

3. The intelligent torque tracking motor power saving system according to claim 1, characterized in that: A balancing shaft (103) is provided at the rear end of the center of the rotor (101). A fan (304) is installed on the balancing shaft (103). When the motor is running, air is blown toward the rotor (101) to dissipate heat. A rear cover (601) is rotatably passed through the rear end of the balancing shaft (103). Three mounting blocks (404) are circumferentially provided at the rear end of the housing (401). The rear cover (601) is buckled into the rear end of the housing (401) and is threadedly mounted and fixed to the three mounting blocks (404) by three screws.

4. The intelligent torque tracking motor power saving system according to claim 3 is characterized in that: The rear cover (601) is provided with a plurality of mesh plates (602), and the front blocking plate (402) is provided with a plurality of ventilation holes (403), so that air can enter through the mesh plates (602) and flow out through the ventilation holes (403) to dissipate heat from the motor.

5. The intelligent torque tracking motor power saving system according to claim 4, characterized in that: A ring mesh plate (603) is fitted on the inner side of the front blocking plate (402).

6. The intelligent torque tracking motor power saving system according to claim 4, characterized in that: Two cone wheels I (104) are mounted opposite to each other on the balancing shaft (103); a sliding seat (501) is provided at the rear end of the housing (401) for axial limiting sliding; a plurality of transmission shafts (503) are rotatably mounted on the sliding seat (501); a torsion spring (504) is provided between each transmission shaft (503) and the sliding seat (501); a cone wheel II (505) is mounted at the end of each transmission shaft (503) close to the balancing shaft (103) via a one-way bearing; the cone wheel II (505) is located between the two cone wheels I (104); When the motor is started, the sliding seat (501) slides forward so that the cone wheel II (505) contacts the cone wheel I (104) at the front end, so that the torsion spring (504) stores energy by elastic torsion. When the motor is started, the sliding seat (501) slides backward quickly so that the cone wheel II (505) contacts the cone wheel I (104) at the rear end. The elastic force of the torsion spring (504) pushes the cone wheel I (104) at the rear end to drive the rotor (101) to rotate, so that the motor braking energy is stored, and the stored energy assists the motor starting, thereby saving starting electric energy.

7. The intelligent torque tracking motor power saving system according to claim 6, characterized in that: A connecting frame (502) is provided at the rear end of the sliding seat (501), and a transmission sleeve (302) is rotatably provided at the center of the connecting frame (502). The transmission sleeve (302) is sleeved on the balance shaft (103), and a spring (303) is provided between the transmission sleeve (302) and the cone wheel I (104) located at the rear end. An electromagnet (406) is provided inside the housing (401). When the motor is braked, the processing module unit (405) controls the electromagnet (406) to start the magnetic attraction sliding seat (501) to slide forward. When the motor is started, the processing module unit (405) controls the electromagnet (406) to close, and the sliding seat (501) slides backward quickly under the influence of the elastic force of the spring (303).

8. The intelligent torque tracking motor power saving system according to claim 6, characterized in that: There are three electromagnets (406), and the three electromagnets (406) correspond one to one to the three mounting blocks (404).

9. The intelligent torque tracking motor power saving system according to claim 6, characterized in that: A spacing sleeve (301) is provided between the two conical wheels I (104) and between the conical wheel I (104) located at the front end and the rotor (101).

10. The intelligent torque tracking motor power saving system according to claim 6, characterized in that: The system also includes The speed detector is used to detect the speed of the motor output shaft and obtain the motor speed signal; A current detector is used to detect the motor current and obtain a motor current signal; A power detector is used to detect the motor power and obtain a motor power signal; The processing module unit (405) is capable of receiving speed signals, current signals, and power signals in real time for storage, and analyzing a large amount of historical data, automatically identifying and predicting the operating trend of the motor, and automatically adjusting the control strategy to adapt to different operating conditions and load changes, thereby ensuring that the motor can achieve the best operating state under different operating conditions.

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