Servo motor actuator with wide speed regulation range

Abstract

The invention relates to the technical field of energy-saving motors, and discloses a wide-speed-regulation servo motor actuator which comprises a shell, the inner wall of the shell is rotationally connected with a rotor through a bearing, the outer wall of the shell is fixedly connected with a protective cover, and a time delay mechanism is arranged in the protective cover; the time-delay mechanism comprises a time-delay mechanism, and the outer wall of the supporting sleeve is fixedly connected with the inner wall of the protective cover, an assembling groove is formed in the inner wall of the supporting sleeve, a first magnet is fixedly connected to the groove wall of the assembling groove, and an exhaust mechanism is arranged in the supporting sleeve. The rotating inertia of the fan is increased through the balancing weight, the rotating duration of the fan is prolonged, and the stability of the fan in the rotating process is improved, so that the fan continuously dissipates heat for the servo motor when the motor moves in a short stroke, and the situation that the heat dissipation time of the fan for the motor is too short when the fan moves in the short stroke of the servo motor is prevented; therefore, the temperature of the motor rises during multi-section short-stroke movement, and the service life of the motor is affected.

Description

Technical Field

[0001] The present invention relates to the technical field of energy-saving electric motors, in particular to a servo motor actuator with wide speed regulation. Background Art

[0002] A servo motor is a device that converts electrical signals into mechanical motion. After an external control signal is input, the servo motor responds to the motion state and can change its own rotation angle, speed, and direction. By transmitting back the actual motion state information and comparing it with the input signal, the motion is adjusted to ensure that the output motion meets the preset requirements and achieve precise mechanical motion control.

[0003] The patent application with application number CN202123327686.X discloses a wide-speed regulation servo motor actuator, including a protective shell, an actuator body is arranged inside the protective shell, a heat dissipation mechanism is installed in the left side wall of the protective shell, and the heat dissipation mechanism includes a rotatable fan, and the fan is arranged on the left side of the actuator body, and a heat dissipation port is opened at the top of the protective shell.

[0004] However, servo motor actuators usually move in short strokes during operation, causing the heat dissipation device to stop when the motor is powered off. This causes the servo motor to heat up during short-stroke multi-stage output, thus shortening the service life of the servo motor. Summary of the Invention

[0005] The object of the present invention is to provide a servo motor actuator with wide speed regulation to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a servo motor actuator with wide speed regulation, comprising a housing, an inner wall of the housing being rotatably connected to a rotor via a bearing, an outer wall of the housing being fixedly connected to a protective cover, and a delay mechanism being provided inside the protective cover; The time delay mechanism comprises: A support sleeve, wherein the outer wall of the support sleeve is fixedly connected to the inner wall of the protective cover, the inner wall of the support sleeve is provided with an assembly groove, the wall of the assembly groove is fixedly connected to a magnet 1, and an exhaust mechanism is provided inside the support sleeve; The exhaust mechanism includes a fan, the outer wall of the fan is fixedly connected to a fixed sleeve, the inner wall of the fixed sleeve is fixedly connected to magnet 2, magnet 1 and magnet 2 drive the fan to rotate through the repulsion of magnetic poles, and the assembly groove is obliquely opened on the inner wall of the support sleeve, so that magnet 1 and magnet 2 generate a deflecting repulsive force.

[0007] According to the above technical solution, the outer wall of the fan is fixedly connected to a counterweight via reinforcing ribs, the inner wall of the fan is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to a docking plate via a slider, the outer wall of the docking plate is meshedly connected to a toothed plate, the inner wall of the toothed plate is fixedly connected to the outer wall of the rotor, the outer wall of the docking plate is fixedly connected to a spring, and the counterweight is used to increase the rotation time of the fan.

[0008] According to the above technical solution, a guide groove is provided on the outer wall of the support sleeve, a limit groove is provided on the outer wall of the support sleeve, the limit groove wall is slidably connected to the counterweight block, and the guide groove is used to guide the airflow.

[0009] According to the above technical solution, the stator is fixedly connected to the inner wall of the shell, the air inlet slot is opened on the outer wall of the shell, the air outlet slot is opened on the outer wall of the shell, and the limit block is fixedly connected to the outer wall of the rotor, and the limit block is used to limit the fan.

[0010] According to the above technical solution, the outer wall of the protective cover is fixedly connected to an electric drive, the outer wall of the protective cover is provided with an exhaust slot, the outer wall of the protective cover is provided with a filter port, and the inner wall of the protective cover is fixedly connected to a guide plate, and the guide plate is a bent shape, which is used to introduce the filter port into the airflow inside the protective cover to isolate the airflow and change the gas flow rate at the same time.

[0011] According to the above technical solution, the end of the spring away from the docking plate is fixedly connected to the outer wall of the limit block, the inner wall of the docking plate is slidingly connected to the outer wall of the rotor, the inner wall of the fan is rotatably connected to the outer wall of the chainring through a bearing, and the outer wall of the fan is rotatably connected to the outer wall of the limit block through a bearing.

[0012] According to the above technical solution, the inner wall of the support sleeve is fixedly connected to the outer wall of the shell, and the limiting groove is used to guide the counterweight block.

[0013] According to the above technical solution, the air inlet slot passes through the outer wall of the shell and is connected to the inside of the shell, the air outlet slot passes through the outer wall of the shell and is fixedly connected to the inside of the shell, and the opening position of the air outlet slot matches the position of the guide slot.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This wide-speed servo motor actuator uses a counterweight to increase the fan's rotational inertia, prolong the fan's rotation time, and increase the stability of the fan during rotation. This allows the fan to continuously dissipate heat from the servo motor during short-stroke motion, preventing the fan from having too little time to dissipate heat from the motor during short-stroke motion, causing the motor to heat up during multiple short-stroke motions and shortening its service life.

[0015] 2. This wide-speed servo motor actuator uses the repulsive force between magnet one and magnet two to reduce the starting force of the motor on the fan rotation, thereby reducing the load on the servo motor. At the same time, the repulsive force increases the rotation time of the fan, allowing the fan to continuously dissipate heat from the motor, ensuring that the fan continues to dissipate heat from the motor during short-stroke movement.

[0016] 3. This wide-speed servo motor actuator filters the cooling air through a protective cover and forms an air duct to dissipate heat from the motor, preventing the motor from being affected by dust during the cooling process, which would reduce the motor's lifespan. At the same time, the cooling air is diverted through a bent baffle, increasing the flow rate of the cooling air through the outer wall of the housing, allowing the motor to cool down quickly and ensure that the motor operates at a normal temperature.

[0017] 4. This wide-speed servo motor actuator transmits the driving force to the docking plate through the toothed plate, so that the docking plate drives the fan to rotate, separating the fan from the rotor, preventing the fan driving force from affecting the motor during high-frequency short-distance movement, ensuring continuous heat dissipation from the fan to the motor while ensuring normal rotation of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 It is a structural schematic diagram of the protective cover of the present invention; Figure 4 The structure of the present invention is schematically shown Figure 3 ; Figure 5 The structure of the present invention is schematically shown Figure 4 ; Figure 6 The cross-sectional view of the present invention Figure 1 ; Figure 7 The cross-sectional view of the present invention Figure 2 ; Figure 8 The cross-sectional view of the delay mechanism of the present invention Figure 1 ; Figure 9 The cross-sectional view of the delay mechanism of the present invention Figure 2 ; Figure 10 The cross-sectional view of the delay mechanism of the present invention Figure 3 ; Figure 11 It is a cross-sectional view of the exhaust mechanism of the present invention.

[0019] In the figure: 1. Shell; 101. Rotor; 102. Electric drive; 103. Air inlet slot; 104. Stator; 105. Air outlet slot; 106. Limit block; 2. Protective cover; 201. Exhaust slot; 202. Filter port; 203. Guide plate; 3. Delay mechanism; 301. Support sleeve; 302. Guide slot; 303. Limit slot; 304. Assembly slot; 305. Magnet 1; 31. Exhaust mechanism; 311. Fan; 312. Sliding slot; 313. Docking plate; 314. Tooth plate; 315. Spring; 316. Counterweight; 317. Fixing sleeve; 318. Magnet 2. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0021] For example 1, please refer to Figure 1 and Figures 8-11 The present invention provides a technical solution: a servo motor actuator with wide speed regulation, comprising a housing 1, an inner wall of the housing 1 being rotatably connected to a rotor 101 via a bearing, an outer wall of the housing 1 being fixedly connected to a protective cover 2, and a delay mechanism 3 being provided inside the protective cover 2; The delay mechanism 3 includes: The support sleeve 301 has an outer wall fixedly connected to the inner wall of the protective cover 2. The inner wall of the support sleeve 301 has an assembly groove 304, and the wall of the assembly groove 304 is fixedly connected to a magnet 305. The exhaust mechanism 31 is provided inside the support sleeve 301. The servo motor actuator usually moves in a short range during operation, causing the heat dissipation device to stop when the motor is powered off. This causes the servo motor to heat up during short-range multi-stage output, which affects the service life of the servo motor. Therefore, an exhaust mechanism 31 is provided to keep the fan 311 rotating continuously. The counterweight block 316 is added to increase the rotation time of the fan 311, thereby continuously cooling the motor. The exhaust mechanism 31 includes a fan 311, the outer wall of the fan 311 is fixedly connected to a fixed sleeve 317, the inner wall of the fixed sleeve 317 is fixedly connected to a second magnet 318, the magnet 1 305 and the magnet 2 318 drive the fan 311 to rotate through the magnetic pole repulsion, the assembly slot 304 is tilted and opened on the inner wall of the support sleeve 301, so that the magnet 1 305 generates a deflection repulsive force on the magnet 2 318. When the wide speed regulation servo motor actuator is put into use, the output end of the rotor 101 is connected to the transmission component, and the electric drive 102 is connected to the central control system through a wire. The central control system sends a pulse signal to make the rotor 101 rotate on the inner wall of the housing 1. When the rotor 101 rotates forward, the rotor 101 drives the tooth plate 314 to rotate, and the docking plate 313 is squeezed with the tooth plate 3 by the spring 315. 14 meshes, so that the toothed disc 314 drives the docking disc 313 to rotate synchronously, and the docking disc 313 is in the sliding groove 312 through the slider, so that the docking disc 313 drives the fan 311 to rotate inside the support sleeve 301 through the slider. During the rotation of the fan 311, the counterweight block 316 is limited by the limiting groove 303 and slides in the limiting groove 303 to limit the fan 311. At the same time, the fan 311 is limited by the limiting block 106 to reduce the vibration of the fan 311 during the rotation process. At the same time, the counterweight block 316 increases the counterweight of the fan 311, thereby increasing the centrifugal force when the fan 311 rotates and increasing the rotation time of the fan 311. When the rotor 101 reverses or stops rotating, the fan 311 is inertia generated by the counterweight block 316 and passes through the sliding groove 3 The limit of the 12 pairs of docking plates 313 causes the compression spring 315 of the docking plate 313 to slide on the inner wall of the sliding groove 312 and slide on the outer wall of the rotor 101 at the same time, so that the toothed plate 314 is disengaged from the toothed plate 314, and the fan 311 continues to rotate in the positive direction of the rotor 101 through inertia. In the process of the fan 311 rotating on the inner wall of the support sleeve 301, the fan 311 generates a deflected repulsive force on the magnet 1 305 against the magnet 2 318 through the inclined arrangement, thereby increasing the rotational force of the fan 311. When the rotor 101 is reversed or stationary, the fan 311 continues to rotate on the inner wall of the support sleeve 301 through the repulsive force of the magnet 1 305 against the magnet 2 318, thereby increasing the heat dissipation time of the motor and preventing the fan 311 from insufficiently cooling the motor during short-range motion, resulting in the motor 101 being out of service. The temperature rises, which affects the service life of the motor. During the rotation of the fan 311, the fan 311 guides the gas so that the gas passes through the filter port 202 and enters the interior of the protective cover 2 after being filtered. The air duct is formed on the outer wall of the shell 1 by the protective cover 2, and the gas is guided by the guide plate 203 arranged inside the protective cover 2 by bending, thereby increasing the flow rate of the gas inside the protective cover 2 and allowing the gas to pass quickly from the outer wall of the shell 1, thereby increasing the heat dissipation efficiency of the shell 1. During the rotation of the fan 311, the fan 311 extracts the gas inside the shell 1 through the air outlet slot 105, and guides part of the gas flowing into the interior of the protective cover 2 through the guide plate 203 and enters the interior of the shell 1 from the air inlet slot 103, so that the gas enters the shell 1 to dissipate heat for the rotor 101.After passing through the outer wall of the shell 1, the gas is guided into the support sleeve 301 through the guide groove 302. The gas inside the shell 1 is drawn out from the air outlet slot 105 by the rotation of the fan 311 and enters the support sleeve 301. The two groups of gas are rotated and guided by the fan 311 and discharged from the exhaust slot 201. The outer wall of the fan 311 is fixedly connected to the counterweight 316 through a reinforcing rib, and the inner wall of the fan 311 is provided with a sliding groove 312. The inner wall of the sliding groove 312 is slidably connected to the docking plate 313 through a slider. The outer wall of the docking plate 313 is meshed with a toothed plate 314. The inner wall of the toothed plate 314 is fixedly connected to the outer wall of the rotor 101. The outer wall of the docking plate 313 is fixedly connected to a spring 315. The counterweight 316 is used to increase the rotation time of the fan 311. During the rotation of the fan 311, the counterweight 316 is limited by the limiting groove 303 and slides in the limiting groove 303 to limit the fan 311. At the same time, the fan 311 is limited by the limiting groove 303. The block 106 is limited to reduce the vibration of the fan 311 during the rotation process. At the same time, the counterweight block 316 increases the counterweight of the fan 311, thereby increasing the centrifugal force when the fan 311 rotates and increasing the rotation time of the fan 311. When the rotor 101 reverses or stops rotating, the fan 311 is inertia generated by the counterweight block 316 and the sliding groove 312 limits the docking plate 313, so that the docking plate 313 compresses the spring 315 to slide on the inner wall of the sliding groove 312 and slides on the outer wall of the rotor 101, so that the toothed plate 314 is disengaged from the toothed plate 314, so that the fan 311 continues to rotate in the forward direction of the rotor 101 by inertia; The spring 315 is fixedly connected to the outer wall of the limit block 106 at one end away from the docking plate 313, the inner wall of the docking plate 313 is slidably connected to the outer wall of the rotor 101, the inner wall of the fan 311 is rotatably connected to the outer wall of the toothed plate 314 through a bearing, and the outer wall of the fan 311 is rotatably connected to the outer wall of the limit block 106 through a bearing. When the rotor 101 rotates forward, the rotor 101 drives the toothed plate 314 to rotate, and the docking plate 313 is squeezed and engaged with the toothed plate 314 by the spring 315, so that the toothed plate 314 drives the docking plate 313 to rotate synchronously, and the docking plate 313 is in the sliding groove 312 through the slider, so that the docking plate 313 drives the fan 311 to rotate inside the support sleeve 301 through the slider. During the rotation of the fan 311, the counterweight block 316 is limited by the limit groove 303 The fan 311 is limited by the limit block 106, and the fan 311 is limited by the limit block 106, so as to reduce the vibration of the fan 311 during the rotation. At the same time, the counterweight block 316 increases the counterweight of the fan 311, thereby increasing the centrifugal force when the fan 311 rotates and increasing the rotation time of the fan 311. When the rotor 101 reverses or stops rotating, the fan 311 is limited by the inertia generated by the counterweight block 316 and the sliding groove 312 on the docking plate 313, so that the docking plate 313 compresses the spring 315 to slide on the inner wall of the sliding groove 312 and slides on the outer wall of the rotor 101, so that the toothed plate 314 is disengaged from the toothed plate 314, so that the fan 311 continues to rotate in the forward direction of the rotor 101 by inertia. The outer wall of the support sleeve 301 is provided with a guide groove 302, and the outer wall of the support sleeve 301 is provided with a limit groove 303. The groove wall of the limit groove 303 is slidably connected with the counterweight block 316. The guide groove 302 is used to guide the airflow. When the fan 311 is rotating, the counterweight block 316 is limited by the limit groove 303 and slides in the limit groove 303 to limit the fan 311. At the same time, the fan 311 is limited by the limit block 106 to reduce the vibration of the fan 311 during the rotation. At the same time, the counterweight block 316 increases the counterweight of the fan 311, thereby increasing the centrifugal force when the fan 311 rotates and increasing the rotation time of the fan 311. When the rotor 101 reverses or stops rotating, the fan 311 is inertia generated by the counterweight block 316 and docks with the docking plate 3 through the sliding groove 312. 13 is limited, so that the docking plate 313 compresses the spring 315 to slide on the inner wall of the sliding groove 312 and slides on the outer wall of the rotor 101 at the same time, so that the toothed plate 314 is disengaged from the toothed plate 314, so that the fan 311 continues to rotate in the positive direction of the rotor 101 through inertia. During the rotation of the fan 311 on the inner wall of the support sleeve 301, the inclined magnet 1 305 generates a deflected repulsive force on the magnet 2 318, thereby increasing the rotational force of the fan 311. When the rotor 101 is reversed or stationary, the fan 311 continues to rotate on the inner wall of the support sleeve 301 through the repulsive force of the magnet 1 305 on the magnet 2 318, thereby increasing the heat dissipation time of the motor, thereby preventing the fan 311 from insufficiently cooling the motor during short-range motion, causing the motor to heat up and shortening the service life of the motor. The inner wall of the support sleeve 301 is fixedly connected to the outer wall of the shell 1, and the limiting groove 303 is used to guide the counterweight block 316. When the fan 311 rotates, the counterweight block 316 is limited by the limiting groove 303 and slides in the limiting groove 303 to limit the fan 311.

[0022] Example 2, based on Example 1, please refer to Figure 2-Figure 7 The present invention provides a technical solution: the motor is continuously cooled by the exhaust mechanism 31, and the cooling air guided by the exhaust mechanism 31 is guided by the air duct formed by the protective cover 2, thereby increasing the flow rate of the cooling air passing through the housing 1 and improving the cooling efficiency; The stator 104 is fixedly connected to the inner wall of the shell 1, the outer wall of the shell 1 is provided with an air inlet slot 103, the outer wall of the shell 1 is provided with an air outlet slot 105, the outer wall of the rotor 101 is fixedly connected to a limit block 106, the limit block 106 is used to limit the fan 311, and the output end of the rotor 101 is connected to the transmission component, and the electric drive 102 is connected to the central control system through a wire. The central control system sends a pulse signal to rotate the rotor 101 on the inner wall of the shell 1. After passing through the outer wall of the shell 1, the gas is guided into the support sleeve 301 through the guide slot 302. The gas inside the shell 1 is drawn out from the air outlet slot 105 by the rotation of the fan 311 and enters the support sleeve 301. The two groups of gas are rotated and guided by the fan 311 and discharged from the exhaust slot 201; The outer wall of the protective cover 2 is fixedly connected to the electric drive 102, the outer wall of the protective cover 2 is provided with an exhaust slot 201, the outer wall of the protective cover 2 is provided with a filter port 202, and the inner wall of the protective cover 2 is fixedly connected to the guide plate 203, which is in a bent shape and is used to isolate the air flow inside the protective cover 2 and change the gas flow rate. During the rotation of the fan 311, the fan 311 guides the gas so that the gas passes through the filter port 202 and enters the interior of the protective cover 2 after being filtered. The air duct formed on the outer wall of the shell 1 by the protective cover 2 is guided by the guide plate 203 set inside the protective cover 2 at the same time, thereby increasing the flow rate of the gas inside the protective cover 2 and allowing the gas to quickly pass through the outer wall of the shell 1. In order to increase the heat dissipation efficiency of the shell 1, during the rotation of the fan 311, the fan 311 extracts the internal gas of the shell 1 through the air outlet slot 105, so that part of the gas flowing into the interior of the protective cover 2 is guided by the guide plate 203 and enters the interior of the shell 1 from the air inlet slot 103, so that the gas enters the shell 1 to dissipate heat for the rotor 101. After passing through the outer wall of the shell 1, the gas is guided into the support sleeve 301 through the guide slot 302. The gas entering the shell 1 is extracted from the air outlet slot 105 by the rotation of the fan 311 and enters the support sleeve 301. The two groups of gas are rotated and guided by the fan 311 and discharged from the exhaust slot 201, so that the filter port 202 and the exhaust slot 201 form a heat dissipation duct for cooling the shell 1; The air inlet slot 103 passes through the outer wall of the shell 1 and is connected to the interior of the shell 1, and the air outlet slot 105 passes through the outer wall of the shell 1 and is fixedly connected to the interior of the shell 1. The position of the air outlet slot 105 matches the position of the guide slot 302. During the rotation of the fan 311, the fan 311 guides the gas so that the gas passes through the filter port 202 and enters the interior of the protective cover 2 after being filtered. The air duct is formed on the outer wall of the shell 1 by the protective cover 2, and the guide plate 203 arranged inside the protective cover 2 is bent to guide the gas, thereby increasing the flow rate of the gas inside the protective cover 2 and allowing the gas to pass quickly from the outer wall of the shell 1, thereby increasing the efficiency of heat dissipation of the shell 1. During the rotation of the fan 311, the fan 311 extracts the gas inside the shell 1 through the air outlet slot 105, so that part of the gas flowing into the interior of the protective cover 2 is guided through the guide plate 203 and enters the interior of the shell 1 from the air inlet slot 103, so that the gas enters the shell 1 to dissipate heat for the rotor 101.

[0023] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A servo motor actuator with wide speed regulation, comprising a housing (1), wherein the inner wall of the housing (1) is rotatably connected to a rotor (101) via a bearing, characterized in that: A protective cover (2) is fixedly connected to the outer wall of the housing (1), and a delay mechanism (3) is provided inside the protective cover (2); The delay mechanism (3) comprises: A support sleeve (301), wherein the outer wall of the support sleeve (301) is fixedly connected to the inner wall of the protective cover (2), the inner wall of the support sleeve (301) is provided with an assembly groove (304), the groove wall of the assembly groove (304) is fixedly connected with a magnet 1 (305), and an exhaust mechanism (31) is provided inside the support sleeve (301); The exhaust mechanism (31) includes a fan (311), the outer wall of the fan (311) is fixedly connected to a fixed sleeve (317), the inner wall of the fixed sleeve (317) is fixedly connected to a second magnet (318), the first magnet (305) and the second magnet (318) drive the fan (311) to rotate through the repulsion of the magnetic poles, and the assembly groove (304) is obliquely opened on the inner wall of the support sleeve (301), so that the first magnet (305) generates a repulsive force on the second magnet (318) to deflect.

2. The servo motor actuator with wide speed regulation according to claim 1, characterized in that: The outer wall of the fan (311) is fixedly connected to a counterweight (316) via a reinforcing rib, the inner wall of the fan (311) is provided with a sliding groove (312), the inner wall of the sliding groove (312) is slidably connected to a docking disc (313) via a slider, the outer wall of the docking disc (313) is meshedly connected to a toothed disc (314), the inner wall of the toothed disc (314) is fixedly connected to the outer wall of the rotor (101), the outer wall of the docking disc (313) is fixedly connected to a spring (315), and the counterweight (316) is used to increase the rotation time of the fan (311).

3. The servo motor actuator with wide speed regulation according to claim 1, characterized in that: The outer wall of the support sleeve (301) is provided with a guide groove (302), the outer wall of the support sleeve (301) is provided with a limit groove (303), the groove wall of the limit groove (303) is slidably connected to the counterweight block (316), and the guide groove (302) is used to guide the airflow.

4. The servo motor actuator with wide speed regulation according to claim 1, characterized in that: The inner wall of the housing (1) is fixedly connected to a stator (104), the outer wall of the housing (1) is provided with an air inlet slot (103), the outer wall of the housing (1) is provided with an air outlet slot (105), and the outer wall of the rotor (101) is fixedly connected to a limiting block (106), the limiting block (106) being used to limit the fan (311).

5. The servo motor actuator with wide speed regulation according to claim 1, characterized in that: The outer wall of the protective cover (2) is fixedly connected to an electric drive (102), the outer wall of the protective cover (2) is provided with an exhaust slot (201), the outer wall of the protective cover (2) is provided with a filter port (202), and the inner wall of the protective cover (2) is fixedly connected to a guide plate (203), the guide plate (203) is in a bent shape and is used to introduce the filter port (202) into the airflow inside the protective cover (2) to isolate the airflow and change the gas flow rate.

6. The servo motor actuator with wide speed regulation according to claim 2, characterized in that: One end of the spring (315) away from the docking plate (313) is fixedly connected to the outer wall of the limit block (106); the inner wall of the docking plate (313) is slidably connected to the outer wall of the rotor (101); the inner wall of the fan (311) is rotatably connected to the outer wall of the toothed plate (314) via a bearing; and the outer wall of the fan (311) is rotatably connected to the outer wall of the limit block (106) via a bearing.

7. The servo motor actuator with wide speed regulation according to claim 3, characterized in that: The inner wall of the support sleeve (301) is fixedly connected to the outer wall of the housing (1), and the limiting groove (303) is used to guide the counterweight (316).

8. The servo motor actuator with wide speed regulation according to claim 4, characterized in that: The air inlet slot (103) penetrates the outer wall of the shell (1) and is in communication with the interior of the shell (1); the air outlet slot (105) penetrates the outer wall of the shell (1) and is fixedly in communication with the interior of the shell (1); the opening position of the air outlet slot (105) matches the position of the guide slot (302).

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