Large-torque direct-current permanent magnet synchronous servo motor and use method

Abstract

The invention discloses a large-torque direct-current permanent magnet synchronous servo motor and a use method, and relates to the technical field of servo motors. The discharged hot air is utilized to push the fan-shaped baffle I and the fan-shaped baffle II to rotate, and an included angle with a certain size is formed between the fan-shaped baffle I and the fan-shaped baffle II and the inner wall of the filter cartridge I, so that the effect of smoothly discharging the hot air is realized; the first fan-shaped baffle and the second fan-shaped baffle can automatically reset under the elastic force action of the first spring, the purpose of blocking an exhaust port of the first filter hole is achieved, the fluff can block a gap between the first fan-shaped baffle and the first filter cartridge, external dust cannot pass through, and the filter cartridge is convenient to use. Therefore, the internal environment and the external environment of the large-torque direct-current permanent-magnet synchronous servo motor are isolated. The first fan-shaped baffle and the second fan-shaped baffle can be automatically closed after losing the airflow power effect, manual opening or closing is not needed, and the situation that the heat dissipation window is forgotten to be opened or closed due to human reasons is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of servo motors, and in particular to a large-torque DC permanent magnet synchronous servo motor and a use method thereof. Background Art

[0002] High-torque DC permanent magnet synchronous servo motor is a type of permanent magnet synchronous servo motor that has the ability to generate large torque and is suitable for applications that require high torque output. This motor generates a magnetic field through permanent magnets, without the need for excitation coils and excitation current, thereby simplifying the motor structure and improving efficiency. When the motor is running, the motor speed and torque can be precisely controlled by controlling the frequency and phase of the input current.

[0003] A permanent magnet synchronous servo motor disclosed in a patent application with reference publication (announcement) number CN112290722B can facilitate disassembly and assembly between the tail cover and the outer shell through a disassembly and assembly mechanism, which can facilitate assembly in production, shorten assembly time, and improve productivity. It can also facilitate disassembly in later maintenance, solving the problem that traditional servo motors are difficult to disassemble due to thread slippage due to bolt fastening. The ventilation opening and closing mechanism enables the first sealing plate and the second sealing plate to be opened and closed, so that the overall sealing can be ensured when not in use, avoiding the entry of dust or foreign matter that affects the overall performance and service life of the servo motor. In the open state, the ventilation and heat dissipation effect can be improved, thereby increasing practicality.

[0004] A comprehensive analysis of the above patents reveals the following defects: The rectangular through slot in the above patent serves as a heat dissipation window, which needs to be opened manually when the motor is running and closed manually when the motor is powered off, which increases the operation steps of using the motor. It is very easy to ignore or forget the step of opening the rectangular through slot during actual use, which can easily lead to the heat inside the motor not being discharged in time and overheating damage. Moreover, the surface of the dustproof net in the rectangular through slot cannot be cleared in time after dust accumulates, and it is difficult for air to be discharged smoothly through the dustproof net, thereby increasing the difficulty of heat dissipation of the motor and shortening the service life of the motor. Secondly, the airflow direction blown by the heat dissipation fan blades inside the motor is fixed and single, and can only sweep local areas of the winding, and it is difficult to cover all areas of the winding surface, so it is impossible to evenly and effectively remove the heat accumulated at various positions on the winding surface, which easily causes the temperature of the local area of ​​the winding to be too high and damaged; Therefore, the present invention proposes a large-torque DC permanent magnet synchronous servo motor and a use method to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a large-torque DC permanent magnet synchronous servo motor and a method for using the same, which solves the problem that the heat dissipation window on the existing servo motor needs to be manually opened when the motor is running and manually closed when the motor is powered off, which increases the operating steps for using the motor. It is very easy to ignore or forget the step of opening the rectangular through slot during actual use, which can easily lead to the heat inside the motor not being discharged in time and overheating damage, and the surface of the dustproof net in the rectangular through slot cannot be cleared in time after dust accumulates, and air is difficult to be discharged smoothly through the dustproof net, which increases the difficulty of heat dissipation of the motor and shortens the service life of the motor; the airflow blown by the heat dissipation fan blades inside the motor is fixed and single in direction, and can only be used to purge local areas of the winding, and it is difficult to cover various areas of the winding surface, so that the heat accumulated at various positions on the winding surface cannot be evenly and effectively removed, which can easily cause the local area of ​​the winding to be damaged due to excessive temperature.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A high-torque DC permanent magnet synchronous servo motor includes a motor housing assembly, and the high-torque DC permanent magnet synchronous servo motor also includes: The exhaust channel and the intake channel are respectively opened on both sides of the outer wall of the motor housing assembly and are used for ventilation when the high-torque DC permanent magnet synchronous servo motor is running; A rotor and a stator, wherein the rotor is rotatably arranged inside the motor housing assembly through a bearing, and the stator is fixedly arranged on the inner wall of the motor housing assembly; An exhaust isolation mechanism is arranged inside the exhaust passage, and is used to automatically open or close the internal exhaust passage when the high-torque DC permanent magnet synchronous servo motor is running or shut down, so as to complete the normal exhaust of the motor housing assembly and isolate the external dust; The air intake isolation mechanism is arranged inside the air intake channel, and is used to filter the air from the outside that enters the motor housing assembly, and completes self-cleaning while filtering the air, discharges the filtered dust in the air, and at the same time controls the air flow direction inside the motor housing assembly, thereby completing the operation of uniformly dissipating the heat of the high-torque DC permanent magnet synchronous servo motor winding.

[0007] Furthermore, the motor housing assembly includes an outer shell, a tail cover and an end cover, and the tail cover and the end cover are detachably arranged at the two ends of the outer shell by bolts, and the tops of the outer shell and the tail cover are fixedly provided with terminal 1 and terminal 2 respectively, and the outer wall of the rotating shaft at one end of the rotor is fixedly provided with fan blades for accelerating the air flow speed inside the outer shell.

[0008] Furthermore, the exhaust isolation mechanism includes a filter cartridge detachably arranged inside the exhaust channel by bolts, a dust shielding assembly for preventing dust from entering is arranged at one end of the filter cartridge, and a cleaning assembly for sweeping out dust that has entered the filter cartridge is also arranged inside the filter cartridge, and limit blocks for limiting the dust shielding assembly from flipping toward the direction of the spiral frame are fixedly arranged on both sides of the inner wall of the filter cartridge.

[0009] Furthermore, the cleaning component includes a transmission shaft rotatably arranged inside a filter cartridge through a bracket, a spiral frame is provided on the outer sleeve of the transmission shaft, a plurality of bristles are evenly fixedly provided on the spiral frame close to the inner wall of the filter cartridge, and the spiral frame and the transmission shaft are fixedly connected via a support arm, and a fan blade is fixedly provided on the outer wall of the transmission shaft close to the dust shield component.

[0010] Furthermore, the dust shield assembly 1 includes two mounting seats detachably arranged on both sides of the inner wall of the filter cartridge 1, and two cross bars are fixedly arranged on the opposite side walls of the two mounting seats, and a fan-shaped baffle 1 is rotatably sleeved on the outer wall of one of the cross bars, and a fan-shaped baffle 2 is rotatably sleeved on the outer wall of the other cross bar, and a plurality of fluffs are fixedly arranged on the outer walls of the fan-shaped baffle 1 and the fan-shaped baffle 2 close to the inner wall of the filter cartridge 1, for preventing dust from entering the filter cartridge 1, and a support frame is fixedly arranged on the opposite inner walls of the two mounting seats and at a position close to the spiral frame 1, and a spring 1 is arranged between the support frame and the fan-shaped baffle 1 and the fan-shaped baffle 2.

[0011] Furthermore, the air intake isolation mechanism includes an air filter assembly detachably arranged inside the air intake passage and an air sweep assembly arranged inside the housing; the air sweep assembly and the air filter assembly are connected via a pipeline; The air filter assembly includes a second filter cartridge and an outer cartridge fixedly mounted on the outside of the second filter cartridge, an exhaust pipe connected to the interior of the outer cartridge is fixedly mounted on one end of the outer cartridge, an air transmission channel is formed between the outer wall of the second filter cartridge and the inner wall of the outer cartridge, and the air inside the second filter cartridge enters the air transmission channel and is discharged through the exhaust pipe, a second dust blocking assembly for blocking external dust from entering is arranged on one side of the interior of the second filter cartridge, and a second cleaning assembly for sweeping out dust entering the interior is arranged on the other side of the interior of the second filter cartridge.

[0012] Furthermore, the cleaning component 2 includes a transmission shaft 2 rotatably arranged inside the filter barrel 2 through a bracket, a spiral frame 2 is provided on the outer sleeve of the transmission shaft 2, a plurality of bristles are evenly fixedly arranged on the spiral frame 2 close to the side wall of the filter barrel 2, and the spiral frame 2 and the transmission shaft 2 are fixedly connected by a plurality of support arms 2, a fan blade 2 is fixedly arranged on the outer wall of the transmission shaft 2 close to the dust shield component 2, and two limit blocks for limiting the rotation angle of the dust shield component 2 are fixedly arranged on both sides of the inner wall of the filter barrel 2.

[0013] Furthermore, the wind sweeping assembly includes an annular air pipe fixedly arranged on the side wall of the tail cover, and a plurality of nozzle units 1 and 2 are alternately arranged on the outer wall of the annular air pipe close to the rotor, and the nozzle unit 1, the nozzle unit 2 and the annular air pipe are connected by a hose.

[0014] Furthermore, except for the different installation angles, the nozzle unit 1 and the nozzle unit 2 have the same structure. The nozzle unit 1 includes an air nozzle and an air inlet pipe fixedly arranged on the outer wall of the air nozzle. A spring 2 is movably arranged on the outer wall of the air nozzle. A spring mounting seat is movably arranged on an end of the spring 2 away from the air nozzle. A movable seat is rotatably arranged at one end of the air nozzle via a rotating shaft. A limit plate for limiting the rotation angle of the air nozzle is fixedly arranged on the top of the movable seat. The spring mounting seat and the movable seat are both fixedly arranged on the outer wall of the annular air pipe.

[0015] The present invention also discloses a method for using a large torque DC permanent magnet synchronous servo motor, the method comprising the following steps: Step 1: Connect the high-torque DC permanent magnet synchronous servo motor to a power source, and the rotor rotates inside the motor housing assembly. At the same time, the air inlet of the exhaust isolation mechanism is automatically opened under the action of the airflow; Step 2: After the external air is filtered by the exhaust isolation mechanism, the clean air enters the motor housing assembly and is blown in multiple directions inside the motor housing assembly; Step 3: The clean air input into the motor housing assembly through the exhaust isolation mechanism takes away the heat accumulated on the rotor surface. Under the action of the airflow, the exhaust port located in the air intake isolation mechanism is automatically opened, and the hot air is discharged through the exhaust port in the air intake isolation mechanism; Step 4: After the high-torque DC permanent magnet synchronous servo motor is disconnected from the power supply, the exhaust isolation mechanism and the air intake isolation mechanism lose the airflow power effect and automatically close, and the motor housing assembly forms an independent space relative to the external environment, and external dust cannot enter.

[0016] The present invention provides a large torque DC permanent magnet synchronous servo motor and a method of using the same. Compared with the prior art, the present invention has the following beneficial effects: 1. A high-torque DC permanent magnet synchronous servo motor and a method of using the same. By setting an exhaust isolation mechanism, when the servo motor is running, the exhaust hot air flow can be used to push the fan-shaped baffle plate 1 and the fan-shaped baffle plate 2 to rotate, so that a certain angle is formed between the fan-shaped baffle plate 1 and the inner wall of the filter cartridge 1, thereby achieving the effect of smooth exhaust of hot air. After the high-torque DC permanent magnet synchronous servo motor is powered off, the fan-shaped baffle plate 1 and the fan-shaped baffle plate 2 can automatically reset under the elastic force of the spring 1, so as to achieve the purpose of blocking the exhaust port of the filter hole 1. Moreover, the fluff can block the gap between the fan-shaped baffle plate and the filter cartridge 1, so that external dust cannot pass through, thereby achieving the effect of isolating the internal and external environments of the high-torque DC permanent magnet synchronous servo motor. Secondly, the fan-shaped baffle 1 and the fan-shaped baffle 2 are opened automatically by the airflow, that is, after the high-torque DC permanent magnet synchronous servo motor is running, air is discharged immediately from its interior, thereby providing power for the rotation of the fan-shaped baffle 1 and the fan-shaped baffle 2, achieving the effect of opening and closing immediately after use, and the fan-shaped baffle 1 and the fan-shaped baffle 2 can be automatically closed after losing the airflow power, without the need for manual opening or closing, avoiding the situation where the heat dissipation process or the dust prevention process is adversely affected due to human reasons forgetting to open or close the heat dissipation window.

[0017] 2. A large-torque DC permanent-magnet synchronous servo motor and a method of using the same. A spiral frame and a fan blade are arranged in a filter cartridge. The fan blade can convert the power of the airflow into the power to drive the transmission shaft and the spiral frame to rotate. When the spiral frame rotates, the bristles on the side wall can be used to clean the inner wall of the filter cartridge, thereby sweeping away the dust that enters the filter cartridge when the dust shield component is turned on, thereby ensuring that the filter cartridge always has good airflow permeability, which is beneficial to improving the heat dissipation capacity.

[0018] 3. A large-torque DC permanent magnet synchronous servo motor and a method of using the same. An air intake isolation mechanism is provided. When external air enters filter cartridge 2, the power of the airflow is used to push the dust shield component 2 to open, thereby increasing the passage for airflow to enter the interior thereof, thereby increasing the amount of air entering the servo motor and improving the heat dissipation effect. When no airflow passes through the air intake isolation mechanism, the dust shield component can automatically reset and automatically block the air inlet of the air intake isolation mechanism, thereby preventing external foreign matter from entering the interior of the air intake isolation mechanism, thereby protecting the air intake isolation mechanism and ensuring that the air intake isolation mechanism is always in an unobstructed state.

[0019] 4. A large-torque DC permanent-magnet synchronous servo motor and a method of using the same. A spiral frame 2 and a fan blade 2 are arranged inside a filter cartridge 2. The fan blade 2 can convert the power of the airflow into the power to drive the rotation of the spiral frame 2. When the spiral frame 2 rotates, it can use the bristles on the side wall to clean the inner wall of the filter cartridge 2, so that dust attached to the inner wall of the filter cartridge 2 falls off to avoid clogging the filter holes of the filter cartridge 2. Secondly, the spiral frame 2 is spiral-shaped, and when it rotates, it can push the swept dust and other debris to a position close to its air inlet, thereby facilitating the subsequent cleaning of the air intake isolation mechanism.

[0020] 5. A large torque DC permanent magnet synchronous servo motor and a method of using the same. By setting an annular air pipe, the air outputted through the air intake isolation mechanism can be outputted through the annular air pipe, and the annular air pipe can be discharged through a plurality of air nozzles. Since the plurality of air nozzles are distributed at a plurality of positions, the blown air can be distributed to a wider range of positions, thereby achieving the effect of fully covering the winding and fully dissipating the heat. Secondly, when the air flow is discharged through the air nozzle, the reaction force of the air flow can push the air nozzle to swing, and cooperate with the elastic force of spring 2 to realize the reciprocating swing of the air nozzle, thereby further increasing the blowing range of the air nozzle and achieving the heat dissipation effect of the winding in a larger range. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the first overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the second overall three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the structure of the housing in the first state of the present invention; Figure 4 This is a schematic diagram of the structure of the housing in the second state of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of part A; Figure 7 It is a schematic diagram of a first cross-sectional structure of the exhaust isolation mechanism of the present invention; Figure 8 It is a second cross-sectional structural schematic diagram of the exhaust isolation mechanism of the present invention; Fig. 9 This is a schematic diagram of the exhaust isolation mechanism of the present invention in a first decomposed state; Fig.10 It is a schematic diagram of the structure of the exhaust isolation mechanism of the present invention in the second decomposed state; Fig.11 This is a schematic diagram of the structure of a dust shield assembly of the present invention; Fig.12This is a schematic diagram of the structure of a dust shield assembly in a disassembled state according to the present invention; Fig.13 It is a schematic diagram of the structure of the air intake isolation mechanism in the first state of the present invention; Fig.14 It is a schematic diagram of the structure of the air intake isolation mechanism in the second state of the present invention; Fig.15 This is a schematic diagram of the first cross-sectional structure of the air filter assembly of the present invention; Fig.16 For the present invention Fig.15 A schematic diagram of the enlarged structure of part B in FIG. Fig.17 It is a second cross-sectional structural schematic diagram of the air filter assembly of the present invention; Fig.18 This is a schematic diagram of the structure of the air intake isolation mechanism of the present invention in a disassembled state; Fig.19 It is a structural schematic diagram of a nozzle unit of the present invention.

[0022] In the figure: 1, housing; 2, tail cover; 3, end cover; 4, rotor; 5, fan blade; 6, exhaust channel; 7, intake channel; 8, exhaust isolation mechanism; 81, filter cartridge 1; 82, dust shield assembly 1; 821, mounting seat; 822, cross bar; 823, fan baffle 1; 824, fan baffle 2; 825, fluff; 826, support frame; 827, spring 1; 83, transmission shaft 1; 84, spiral frame 1; 85, support arm 1; 86, fan blade 1; 87, limit block 1; 9, intake channel Air isolation mechanism; 91, air filter assembly; 911, filter cartridge 2; 912, outer cylinder; 913, air transmission channel; 914, dust shield assembly 2; 915, transmission shaft 2; 916, spiral frame 2; 917, support arm 2; 918, fan blade 2; 919, limit block 2; 92, annular air pipe; 93, nozzle unit 1; 931, air nozzle; 932, air intake pipe; 933, spring 2; 934, movable seat; 935, limit plate; 936, spring mounting seat; 94, nozzle unit 2. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figures 1 to 19 The present invention provides three technical solutions: a large torque DC permanent magnet synchronous servo motor, specifically including the following embodiments: Embodiment 1: A high-torque DC permanent magnet synchronous servo motor, comprising a motor housing assembly, the high-torque DC permanent magnet synchronous servo motor further comprising: The exhaust channel 6 and the intake channel 7 are respectively provided on both sides of the outer wall of the motor housing assembly and are used for ventilation when the high-torque DC permanent magnet synchronous servo motor is running; The rotor 4 and the stator are rotatably arranged inside the motor housing assembly through a bearing, and the stator is fixedly arranged on the inner wall of the motor housing assembly. The stator and the rotor 4 complete the conversion between electromagnetic energy and mechanical energy through the principle of electromagnetic induction; An exhaust isolation mechanism 8 is arranged inside the exhaust passage 6 and is used to automatically open or close the internal exhaust passage when the high-torque DC permanent magnet synchronous servo motor is running or shut down, so as to complete the normal exhaust of the motor housing assembly and isolate the external dust; The air inlet isolation mechanism 9 is arranged inside the air inlet passage 7, and is used to filter the air entering the motor housing assembly from the outside, and complete self-cleaning while filtering the air, discharge the dust filtered in the air, and control the air flow direction of the motor housing assembly at the same time, so as to complete the operation of uniformly dissipating the heat of the winding of the large torque DC permanent magnet synchronous servo motor. The motor housing assembly includes a housing 1, a tail cover 2 and an end cover 3, and the tail cover 2 and the end cover 3 are respectively detachably arranged at the two ends of the housing 1 by bolts, and the tops of the housing 1 and the tail cover 2 are respectively fixed with a connection terminal 1 and a connection terminal 2, and a fan blade 5 is fixedly sleeved on the outer wall of the rotating shaft at one end of the rotor 4, so as to accelerate the air flow speed inside the housing 1. The rotating shaft of the rotor 4 away from the end of the fan blade 5 rotates through the end cover 3 and extends to the outside, and the rotating shaft and the end cover 3 and the tail cover 2 are connected by bearings.

[0025] Embodiment 2: The main difference between this embodiment and the first technical solution is that: a large torque DC permanent magnet synchronous servo motor, the exhaust isolation mechanism 8 includes a filter cartridge 81 detachably arranged inside the exhaust channel 6 by bolts, one end of the filter cartridge 81 is provided with a dust shielding assembly 82 for preventing dust from entering, and the filter cartridge 81 is also provided with a cleaning assembly 1 for sweeping out dust that has entered the filter cartridge 81, and both sides of the inner wall of the filter cartridge 81 are fixedly provided with a limit block 87 for limiting the dust shielding assembly 82 from turning in the direction of the spiral frame 84. The cleaning assembly 1 includes a transmission shaft 83 rotatably arranged inside the filter cartridge 81 by a bracket, the outer sleeve of the transmission shaft 83 is provided with a spiral frame 84, and a plurality of bristles are evenly fixedly arranged on the spiral frame 84 near the inner wall of the filter cartridge 81, and the spiral frame 84 and the transmission shaft 83 are fixedly connected by a support arm 85, and a fan blade 86 is fixedly provided on the outer wall of the transmission shaft 83 near the dust shielding assembly 82. The outer wall of the support arm 85 is close to the inner wall of the filter cartridge 81, and the bristles arranged on the outer wall of the support arm 85 are close to the inner wall of the filter cartridge 81, so that the inner wall of the filter cartridge 81 can be cleaned when the support arm 85 rotates; the dust shielding assembly 82 includes two mounting seats 821 detachably arranged on both sides of the inner wall of the filter cartridge 81, and two cross bars 822 are fixedly arranged on the opposite side walls of the two mounting seats 821, and a fan-shaped baffle plate 82 is rotatably sleeved on the outer wall of one of the cross bars 822. 3. A second fan-shaped baffle plate 824 is rotatably sleeved on the outer wall of the other cross bar 822. A plurality of fluffs 825 are fixedly arranged on the outer walls of the first fan-shaped baffle plate 823 and the second fan-shaped baffle plate 824 close to the inner wall of the filter cartridge 81 to prevent dust from entering the filter cartridge 81. A support frame 826 is fixedly arranged on the opposite inner walls of the two mounting seats 821 and close to the spiral frame 84. A spring 827 is arranged between the support frame 826 and the first fan-shaped baffle plate 823 and the second fan-shaped baffle plate 824. The fan-shaped baffle 1 823 and the fan-shaped baffle 2 824 have the same structure, and a certain gap is preset between the edges of the two and the inner wall of the filter cartridge 1 81, so that they can be turned freely and smoothly without interfering with the inner wall of the filter cartridge 1 81. The setting of the fluff 825 can fill the preset gap between the fan-shaped baffle 1 823, the fan-shaped baffle 2 824 and the inner wall of the filter cartridge 1 81 to form a dense filter mesh layer, and dust and impurities in the air cannot pass through; when the rotor 4 operates at minimum power, the wind force generated by the rotation of the fan blades 5 can blow the fan-shaped baffle 1 823 and the fan-shaped baffle 2 824 to turn a certain angle when passing through the filter cartridge 1 81; the spring mounting seat 936 and the movable seat 934 are both fixedly arranged on the outer wall of the annular air pipe 92.

[0026] Embodiment 3: The main difference between this embodiment and the second technical solution is: a large torque DC permanent magnet synchronous servo motor, the air intake isolation mechanism 9 includes an air filter assembly 91 detachably arranged inside the air intake channel 7 and a wind sweeping assembly arranged inside the shell 1; the wind sweeping assembly and the air filter assembly 91 are connected by a pipeline to input the air inside the air filter assembly 91 into the annular air pipe 92; the air filter assembly 91 includes a second filter cartridge 911 and an outer cartridge 912 fixedly sleeved on the outside of the second filter cartridge 911, one end of the outer cartridge 912 is fixedly provided with an exhaust pipe connected to the interior thereof, an air delivery channel 913 is formed between the outer wall of the second filter cartridge 911 and the inner wall of the outer cartridge 912, the air inside the second filter cartridge 911 enters the air delivery channel 913 and is discharged through the exhaust pipe, a dust shield assembly 914 is provided on one side of the interior of the second filter cartridge 911 for blocking external dust from entering, and a cleaning assembly 914 is provided on the other side of the interior of the second filter cartridge 911 for sweeping out dust entering the interior thereof. The cleaning component 2 includes a transmission shaft 2 915 which is rotatably arranged inside the filter cartridge 2 911 through a bracket, and a spiral frame 2 916 is sleeved on the outside of the transmission shaft 2 915. A plurality of bristles are evenly fixedly arranged on the side wall of the spiral frame 2 916 close to the filter cartridge 2 911, and the spiral frame 2 916 and the transmission shaft 2 915 are fixedly connected by a plurality of support arms 2 917. A fan blade 2 918 is fixedly sleeved on the outer wall of the transmission shaft 2 915 close to the dust shield component 2 914, and a limit block 2 919 is fixedly arranged on both sides of the inner wall of the filter cartridge 2 911 for limiting the rotation angle of the dust shield component 2 914. The dust shield component 2 914 and the dust shield component 1 82 have the same structure except for the different installation directions. The outer wall of the spiral frame 2 916 is close to the inner wall of the filter cartridge 2 911, and the bristles on its outer wall are close to the inner wall of the filter cartridge 2 911. The air sweeping assembly includes an annular air pipe 92 fixedly arranged on the side wall of the tail cover 2, and a plurality of nozzle units 1 93 and nozzle units 2 94 are alternately arranged on the outer wall of the annular air pipe 92 close to the rotor 4, and the nozzle units 1 93, the nozzle units 2 94 and the annular air pipe 92 are connected by a hose. Except for the different installation angles, the nozzle units 1 93 and the nozzle units 2 94 have the same structure. The nozzle unit 1 93 includes an air nozzle 931 and an air inlet pipe 932 fixedly arranged on the outer wall of the air nozzle 931, and a spring 2 933 is movably arranged on the outer wall of the air nozzle 931, and a spring mounting seat 936 is movably arranged on the end of the spring 2 933 away from the air nozzle 931, and a movable seat 934 is rotatably arranged on one end of the air nozzle 931 through a rotating shaft, and a limit plate 935 for limiting the rotation angle of the air nozzle 931 is fixedly arranged on the top of the movable seat 934, and the spring mounting seat 936 and the movable seat 934 are both fixedly arranged on the outer wall of the annular air pipe 92.

[0027] The present invention also provides a method for using a large torque DC permanent magnet synchronous servo motor, the method comprising the following steps: Step 1: Connect the high-torque DC permanent magnet synchronous servo motor to the power supply, and the rotor 4 rotates inside the motor housing assembly. At the same time, the air inlet of the exhaust isolation mechanism 8 is automatically opened under the action of the airflow; the specific process is: connect the connection terminal 1 and the connection terminal 2 located at the top of the housing 1 and the tail cover 2 to the external power supply, encoder and other components respectively. This connection method is an existing known technology and will not be repeated here; After the power is turned on, the rotor 4 rotates and simultaneously drives the fan blades 5 to rotate. The wind force generated by the fan blades 5 when rotating blows toward the surface of the rotor 4. The heat accumulated on the surface of the rotor 4 is discharged through the exhaust isolation mechanism 8 along with the flowing air. When the airflow passes through the exhaust isolation mechanism 8, the hot air enters the interior through the filter holes on the outer wall surface of the filter cartridge 1 81. The flowing airflow simultaneously pushes the fan-shaped baffle 1 823 and the fan-shaped baffle 2 824 to rotate around the cross bar 822 at their respective corresponding positions by a certain angle. At this time, the spring 1 827 is stretched to produce elastic deformation. At the same time, a certain size of gap is formed between the fan-shaped baffle 1 823, the fan-shaped baffle 2 824 and the inner wall of the filter cartridge 1 81, and the airflow flows out through the gap formed between the fan-shaped baffle 1 823, the fan-shaped baffle 2 824 and the inner wall of the filter cartridge 1 81; At the same time, the airflow drives the fan blade 86 to rotate. Since the fan blade 86 and the spiral frame 84 are fixedly arranged on the transmission shaft 83 at the same time, when the fan blade 86 rotates, the bristles on the outer wall of the spiral frame 84 continuously clean the inner wall of the filter cartridge 81 to prevent dust from entering the filter cartridge 81 after the dust shielding assembly 82 is opened, thereby clogging the filter holes of the filter cartridge 81. Step 2: After the external air is filtered by the exhaust isolation mechanism 8, the clean air enters the motor housing assembly and is blown in multiple directions inside the motor housing assembly; the specific process is: as the amount of air inside the housing 1 decreases, its internal pressure decreases, and the external air flows into the interior of the housing 1 through the air intake isolation mechanism 9 under the action of atmospheric pressure; When air flows through the air intake isolation mechanism 9, the airflow pushes the fan-shaped baffle 1 823 and the fan-shaped baffle 2 824 in the dust shield assembly 2 914 to rotate a certain angle in the direction away from the support frame 826, so that a certain size of gap is formed between the side walls of the fan-shaped baffle 1 823 and the fan-shaped baffle 2 824 and the filter cartridge 1 81. At this time, the spring 1 827 connecting the fan-shaped baffle 1 823 and the fan-shaped baffle 2 824 in the air intake isolation mechanism 9 is stretched to produce elastic deformation, and the external air enters the interior of the filter cartridge 2 911 through the gap between the side walls of the fan-shaped baffle 1 823 and the fan-shaped baffle 2 824 and the filter cartridge 2 911. The dust and impurities mixed in the air are filtered by the filter cartridge 2 911 and then enter the interlayer gap between the filter cartridge 2 911 and the outer cartridge 912, and then are input into the annular air pipe 92 through the exhaust pipe fixedly arranged at one end of the outer cartridge 912 and connected to the interior of the outer cartridge 912. At the same time, the flowing airflow drives the second fan blade 918 to rotate. Since the second fan blade 918 and the second spiral frame 916 are fixedly arranged on the second transmission shaft 915, the second fan blade 918 rotates and simultaneously drives the second spiral frame 916 to rotate. The dust and impurities attached to the inner wall of the second filter cartridge 911 are gradually swept away by the bristles on the outer wall of the second spiral frame 916, and accumulate at the bottom of the inner cavity of the second filter cartridge 911 under the action of gravity. Since the second spiral frame 916 is spiral, when the second spiral frame 916 rotates in a preset direction, the dust and impurities inside the second filter cartridge 911 are gradually pushed toward the direction of the second dust shield component 914 by the rotating second spiral frame 916. The clean air exhausted through the air filter assembly 91 is input into the annular air pipe 92 through the pipeline. Since the annular air pipe 92 is provided with multiple air outlets facing different nozzle units 1 93 and nozzle units 2 94 alternately, and multiple nozzle units 1 93 and nozzle units 2 94 are connected to the air intake pipe 932 through a hose, the air enters the air nozzle 931 through the air intake pipe 932 and is then exhausted. Since the exhaust port of the air nozzle 931 forms a certain angle with the air nozzle 931 body, when the air is exhausted through the air nozzle 931, under the reaction force of the air flow, the air nozzle 931 revolves around the movable seat 934. The spring 933 is rotated in the opposite direction of the spring mounting seat 936 by a certain angle. At this time, the second spring 933 is stretched. Since the amount of air entering the air nozzle 931 and the flow rate are not always constant during actual operation, the amount of air discharged from the air nozzle 931 and the air flow rate are constantly changing, and the reaction force of the air flow relative to the air nozzle 931 is constantly fluctuating. At this time, under the elastic force of the second spring 933, the air nozzle 931 reciprocates up and down around the movable seat 934 at a non-constant angle, and the direction of the discharged air flow changes continuously with the swing of the air nozzle 931, blowing to different positions of the rotor 4; Step 3: The clean air input into the motor housing assembly through the exhaust isolation mechanism 8 takes away the heat accumulated on the surface of the rotor 4. Under the action of the airflow, the exhaust port located in the air intake isolation mechanism 9 is automatically opened, and the hot air is discharged through the exhaust port in the air intake isolation mechanism 9; Step 4: After the high-torque DC permanent magnet synchronous servo motor is disconnected from the power supply, the exhaust isolation mechanism 8 and the air intake isolation mechanism 9 lose the airflow power and automatically close, and the motor housing assembly forms an independent space relative to the external environment, and external dust cannot enter. The specific process is: after the high-torque DC permanent magnet synchronous servo motor is disconnected from the power supply, no air passes through the exhaust isolation mechanism 8 and the air intake isolation mechanism 9, and when there is no airflow pushing the fan-shaped baffle 1 823 and the fan-shaped baffle 2 824 in the exhaust isolation mechanism 8 and the air intake isolation mechanism 9, the spring 1 827 pulls the fan-shaped baffle 1 823 and the fan-shaped baffle 2 824 close to the support frame 826. Due to the limiting effect of the limit block 1 87 and the limit block 2 919 at the corresponding position, the fan-shaped baffle 1 823 and the fan-shaped baffle 2 824 are in a stable state when there is no airflow pushing, and the opening positions of the filter cartridge 1 81 and the filter cartridge 2 911 are blocked by the dust blocking assembly 1 82 and the dust blocking assembly 2 914 respectively, and external dust cannot enter.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-torque DC permanent magnet synchronous servo motor, comprising a motor housing assembly, Features: The high-torque DC permanent magnet synchronous servo motor also includes: The exhaust channel and the intake channel are respectively opened on both sides of the outer wall of the motor housing assembly and are used for ventilation when the high-torque DC permanent magnet synchronous servo motor is running; A rotor and a stator, wherein the rotor is rotatably arranged inside the motor housing assembly through a bearing, and the stator is fixedly arranged on the inner wall of the motor housing assembly; An exhaust isolation mechanism is arranged inside the exhaust passage, and is used to automatically open or close the internal exhaust passage when the high-torque DC permanent magnet synchronous servo motor is running or shut down, so as to complete the normal exhaust of the motor housing assembly and isolate the external dust; The air intake isolation mechanism is arranged inside the air intake channel, and is used to filter the air from the outside that enters the motor housing assembly, and completes self-cleaning while filtering the air, discharges the filtered dust in the air, and at the same time controls the air flow direction inside the motor housing assembly, thereby completing the operation of uniformly dissipating the heat of the high-torque DC permanent magnet synchronous servo motor winding.

2. A high torque DC permanent magnet synchronous servo motor according to claim 1, Features: The motor housing assembly includes an outer shell, a tail cover and an end cover, the tail cover and the end cover are detachably arranged at the two ends of the outer shell by bolts, the top of the outer shell and the tail cover are respectively fixed with a wiring terminal 1 and a wiring terminal 2, and a fan blade is fixedly sleeved on the outer wall of the rotating shaft at one end of the rotor to accelerate the air flow speed inside the outer shell.

3. A high torque DC permanent magnet synchronous servo motor according to claim 1, Features: The exhaust isolation mechanism includes a filter cartridge detachably arranged inside the exhaust channel by bolts, a dust shielding assembly for preventing dust from entering is arranged at one end of the filter cartridge, and a cleaning assembly for sweeping out dust that has entered the filter cartridge is also arranged inside the filter cartridge, and limit blocks for limiting the dust shielding assembly from flipping toward the spiral frame are fixedly arranged on both sides of the inner wall of the filter cartridge.

4. A high torque DC permanent magnet synchronous servo motor according to claim 3, Features: The cleaning component includes a transmission shaft rotatably arranged inside a filter cartridge through a bracket, a spiral frame is provided on the outside of the transmission shaft, a plurality of bristles are evenly and fixedly provided on the spiral frame close to the inner wall of the filter cartridge, and the spiral frame and the transmission shaft are fixedly connected via a support arm, and a fan blade is fixedly provided on the outer wall of the transmission shaft close to the dust shield component.

5. A high torque DC permanent magnet synchronous servo motor according to claim 3, Features: The dust shield assembly 1 includes two mounting seats detachably arranged on both sides of the inner wall of the filter cartridge 1, and two cross bars are fixedly arranged on the opposite side walls of the two mounting seats, a fan-shaped baffle 1 is rotatably sleeved on the outer wall of one of the cross bars, and a fan-shaped baffle 2 is rotatably sleeved on the outer wall of the other cross bar, and a plurality of fluffs are fixedly arranged on the outer walls of the fan-shaped baffle 1 and the fan-shaped baffle 2 close to the inner wall of the filter cartridge 1, for preventing dust from entering the filter cartridge 1, and a support frame is fixedly arranged on the opposite inner walls of the two mounting seats and close to the spiral frame 1, and a spring 1 is arranged between the support frame and the fan-shaped baffle 1 and the fan-shaped baffle 2.

6. A high torque DC permanent magnet synchronous servo motor according to claim 2, Features: The air intake isolation mechanism includes an air filter assembly detachably arranged inside the air intake passage and an air sweep assembly arranged inside the housing, and the air sweep assembly and the air filter assembly are connected via a pipeline; The air filter assembly includes a second filter cartridge and an outer cartridge fixedly mounted on the outside of the second filter cartridge, an exhaust pipe connected to the interior of the outer cartridge is fixedly mounted on one end of the outer cartridge, an air transmission channel is formed between the outer wall of the second filter cartridge and the inner wall of the outer cartridge, and the air inside the second filter cartridge enters the air transmission channel and is discharged through the exhaust pipe, a second dust blocking assembly for blocking external dust from entering is arranged on one side of the interior of the second filter cartridge, and a second cleaning assembly for sweeping out dust entering the interior is arranged on the other side of the interior of the second filter cartridge.

7. A high torque DC permanent magnet synchronous servo motor according to claim 6, Features: The cleaning component 2 includes a transmission shaft 2 which is rotatably arranged inside the filter barrel 2 through a bracket, a spiral frame 2 is provided on the outside of the transmission shaft 2, a plurality of bristles are evenly fixedly arranged on the spiral frame 2 close to the side wall of the filter barrel 2, and the spiral frame 2 and the transmission shaft 2 are fixedly connected by a plurality of support arms 2, a fan blade 2 is fixedly provided on the outer wall of the transmission shaft 2 close to the dust shield component 2, and two limit blocks for limiting the rotation angle of the dust shield component 2 are fixedly provided on both sides of the inner wall of the filter barrel 2.

8. A high torque DC permanent magnet synchronous servo motor according to claim 6, Features: The wind sweeping assembly includes an annular air pipe fixedly arranged on the side wall of the tail cover, and a plurality of nozzle units 1 and 2 are alternately arranged on the outer wall of the annular air pipe close to the rotor. The nozzle unit 1, the nozzle unit 2 and the annular air pipe are connected by a hose.

9. A high torque DC permanent magnet synchronous servo motor according to claim 8, Features: The nozzle unit 1 and the nozzle unit 2 have the same structure except for the different installation angles. The nozzle unit 1 includes an air nozzle and an air inlet pipe fixedly arranged on the outer wall of the air nozzle. A spring 2 is movably arranged on the outer wall of the air nozzle. A spring mounting seat is movably arranged on an end of the spring 2 away from the air nozzle. A movable seat is rotatably arranged at one end of the air nozzle via a rotating shaft. A limit plate for limiting the rotation angle of the air nozzle is fixedly arranged on the top of the movable seat. The spring mounting seat and the movable seat are both fixedly arranged on the outer wall of the annular air pipe.

10. A method for using the high-torque DC permanent magnet synchronous servo motor according to any one of claims 1 to 9, Features: The method comprises the following steps: Step 1: Connect the high-torque DC permanent magnet synchronous servo motor to a power source, and the rotor rotates inside the motor housing assembly. At the same time, the air inlet of the exhaust isolation mechanism is automatically opened under the action of the airflow; Step 2: After the external air is filtered by the exhaust isolation mechanism, the clean air enters the motor housing assembly and is blown in multiple directions inside the motor housing assembly; Step 3: The clean air input into the motor housing assembly through the exhaust isolation mechanism takes away the heat accumulated on the rotor surface. Under the action of the airflow, the exhaust port located in the air intake isolation mechanism is automatically opened, and the hot air is discharged through the exhaust port in the air intake isolation mechanism; Step 4: After the high-torque DC permanent magnet synchronous servo motor is disconnected from the power supply, the exhaust isolation mechanism and the air intake isolation mechanism lose the airflow power effect and automatically close, and the motor housing assembly forms an independent space relative to the external environment, and external dust cannot enter.

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