A monitoring device and system for electric actuator

Abstract

The present invention relates to the field of electric actuator monitoring technology, and specifically, to a monitoring device and system for electric actuators. It includes an inner ring, a plurality of gas collecting grooves and an outer ring. The present invention drives the outer ring to rotate along the outer side of the inner ring through a driving component, adjusts the temperature monitoring component to different positions, and monitors the heat flow at the inner end of the gas collecting groove at different positions to obtain the temperature value. The time points at which the temperature monitoring component passes through the gas collecting grooves at different positions are different. Correspondingly, the farther the inner end of the gas collecting groove is from the temperature monitoring component, the more heat flow is accumulated. Not only can the heat generated at different time points when the motor is running be monitored, but also the heat accumulated at the inner end of the gas collecting groove at different positions can be monitored to form multiple control groups, thereby further improving the monitoring accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of electric actuator monitoring, and in particular to a monitoring device and system for an electric actuator. Background Art

[0002] An electric actuator is a driving device that can provide linear or rotary motion. It uses a certain driving energy and works under a certain control signal. The electric actuator uses liquid, gas, electricity or other energy and converts it into a driving action through a motor, cylinder or other device.

[0003] The most common electric actuator is the motor, which is also the electric actuator we come into contact with in daily life. The working principle of the motor is based on the law of electromagnetic induction: when current passes through the stator of the motor, a magnetic field is generated. This magnetic field interacts with the conductor in the rotor to generate a torque, causing the rotor to start rotating. In this process, heat is generated inside the motor, and the increase in heat will affect the efficiency of the motor. Therefore, a heat dissipation structure is configured inside the motor. The traditional heat dissipation structure mainly uses a heat dissipation fan to form a diversion, and the heat generated during the movement of the motor is discharged through the heat dissipation holes. Therefore, the setting of the heat dissipation holes plays a vital role in the heat dissipation inside the motor.

[0004] Research has shown that the number and location of cooling holes directly affect the heat dissipation efficiency of the motor. In actual applications, different cooling hole configurations are tested and the heat dissipation efficiency is verified through temperature measurement, with adjustments made if necessary. Traditional temperature monitoring devices primarily use temperature monitoring equipment to collect the temperature around the cooling holes to determine the heat dissipation efficiency of different cooling holes. This monitoring method has the following problems:

[0005] First, due to the change in the position and number of heat dissipation holes, the direction of the discharged heat flow changes. The accuracy of the heat flow value collected by temperature monitoring at a fixed position is low. It is difficult to determine the direction of heat flow through manual adjustment, resulting in the inability to obtain the heat flow temperature value in the first time, affecting the final monitoring effect.

[0006] Second, positioning monitoring can only obtain the temperature value of a single area, and the value is too single. For the two groups of experiments with smaller heat dissipation hole adjustments, the value changes are small. Monitoring at a single position cannot intuitively determine the value change, which affects the final judgment.

[0007] In order to address the above problems, there is an urgent need for a monitoring device and system for an electric actuator. Summary of the Invention

[0008] The object of the present invention is to provide a monitoring device and system for an electric actuator to solve the problems raised in the above background technology.

[0009] To achieve the above objectives, one of the objectives of the present invention is to provide a monitoring device for an electric actuator, comprising a monitoring box, wherein a bracket for supporting the electric actuator is provided at the inner end of the monitoring box, an inner ring is provided in the middle of the monitoring box, and a plurality of gas collecting grooves are provided in an array on the outer side of the inner ring for collecting heat flow discharged from the electric actuator in a zoned manner;

[0010] An outer ring is sleeved on the outer side of the inner ring, and a temperature monitoring component is provided on the outer side of the outer ring. A driving mechanism is connected between the outer ring and the top of the monitoring box to drive the outer ring to rotate along the outer side of the inner ring, adjust the position of the temperature monitoring component, and monitor the temperature of the heat flow at the inner end of the gas collecting tank at different positions;

[0011] An inner frame is provided at the inner end of the monitoring box, a cavity for conducting flow is provided in the middle of the inner frame, and a conducting component is connected between the inner end of the cavity and each gas collecting tank to guide the heat flow to the inner end of each gas collecting tank.

[0012] As a further improvement of the present technical solution, the temperature monitoring assembly includes a thermometer and a probe installed at the bottom of the thermometer. An inner groove is provided on the inner side of the outer ring at the bottom of the thermometer, and the probe passes through the outer ring and extends into the inner end of the inner groove.

[0013] As a further improvement of the present technical solution, the driving mechanism includes a servo motor and a gear installed on the side of the servo motor, the gear is coaxially connected to the side of the servo motor, a plurality of tooth grooves are provided in an array at the outer edge position of the outer ring, and the outer ring is meshed with the gear through the tooth grooves.

[0014] As a further improvement of the present technical solution, a partition is provided at one end of the inner frame, and a connecting groove is opened in the middle of the partition for the heat dissipation end of the motor to be tested to extend therein, so as to expose the heat dissipation position to the inner end of the cavity, and cooperate with the side of the baffle to isolate the cavity.

[0015] As a further improvement of the present technical solution, a baffle is slidingly provided at the inner end of the other end of the inner frame. The cross-sectional size of the baffle is consistent with the cross-sectional size formed at the inner end of the inner frame. The baffle forms an isolation surface at the inner end of the cavity. The heat flow flowing at the inner end of the cavity drives the baffle to slide along the inner end of the cavity, and evenly guides the heat flow to various areas on the side of the baffle. The heat flow is evenly introduced into the inner end of each gas collecting groove in conjunction with the conduction component. A reset component is connected between the baffle and the inner wall of the inner frame to drive the baffle that has lost kinetic energy to reset.

[0016] As a further improvement of the present technical solution, the conduction assembly includes a plurality of connecting pipes, one end of the connecting pipe is connected to the inner end of the gas collecting tank, the inner side of the inner frame is provided with a plurality of exhaust grooves connected to the other end of the connecting pipe, and the baffle is provided with a plurality of notches on a side close to the partition;

[0017] In the initial state, the baffle is located in the middle of the inner end of the inner frame, and each notch is staggered with the exhaust slot at the corresponding position;

[0018] When the heat flow flows along the inner end of the cavity, the isolation surface formed by the side of the baffle drives the baffle to slide away from the partition, and drives the baffle to move to the edge of the inner end of the inner frame, and each notch is aligned with the exhaust slot at the corresponding position.

[0019] As a further improvement of the present technical solution, the side surface of the baffle is an arc-shaped structure, and the cross-sectional dimension of the distal end of the side surface of the baffle is smaller than the cross-sectional dimension of the proximal end thereof.

[0020] A second object of the present invention is to provide a system for controlling a monitoring device for an electric actuator, comprising a ventilation zone division module, a temperature monitoring platform, a monitoring data integration module, and a data model simulation module;

[0021] The ventilation zone division module is used to obtain the position and number of heat dissipation holes in each experiment and perform marking processing;

[0022] The temperature monitoring platform includes a temperature monitoring module, a monitoring area adjustment module, and a servo motor control module. The temperature monitoring module is arranged at the inner end of the thermometer and is used to obtain the temperature value of the inner end of the probe. The monitoring area adjustment module is used to locate the position of each gas collecting slot, mark each gas collecting slot, and divide the monitoring area. The servo motor control module is arranged at the inner end of the servo motor and is used to control the rotation state of the gear, customize the number of gear turns, cooperate with the gear to drive the outer ring to rotate, and set the pause point of the thermometer.

[0023] The monitoring data integration module obtains the temperature values ​​of the heat dissipation holes at different positions and quantities, divides the temperature values ​​according to the monitoring area, and obtains different temperature values ​​corresponding to the gas collecting slots at the same position;

[0024] The data model simulation module combines the integrated temperature values ​​to develop a temperature value distribution simulation diagram. The temperature value distribution simulation diagram is used to obtain the heat dissipation change state of the heat dissipation holes in different positions and quantities, and the corresponding heat dissipation efficiency is determined. The specific steps are as follows:

[0025] S1. Obtain the position and quantity status of the heat dissipation holes and mark the generated state point State;

[0026] S2, control the servo motor rotation state through the servo motor control module, and obtain the number of rotations of the gear each time Rot number and the interval time T;

[0027] S3. Obtain the marking point Mk of each gas collecting tank points , get the corresponding mark point Mk under different state points State points The temperature value Te values ;

[0028] S4. Get adjacent marker points Mk points The temperature growth rate between in is the adjacent marker point Mk points One of the markers Mk points The temperature value, is the adjacent marker point Mk points Another marker point Mk points Temperature value;

[0029] S5. Calculate the average temperature growth rate corresponding to each state point State in to is the growth rate of each temperature value corresponding to the state point State, and n is the total number of gas collecting tanks set minus 1;

[0030] S6. For the average temperature numerical growth rates corresponding to the state points State, the state point State with the lowest average temperature numerical growth rate is marked as the best state point, and the state point State with the highest average temperature numerical growth rate is marked as the worst state point.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. In the monitoring device and system for the electric actuator, the outer ring is driven to rotate along the outer side of the inner ring by the driving mechanism, the temperature monitoring component is adjusted to different positions, and the heat flow at the inner end of the gas collecting tank at different positions is monitored to obtain the temperature value. The time points at which the temperature monitoring component passes through the gas collecting tank at different positions are different. Correspondingly, the farther the inner end of the gas collecting tank is from the temperature monitoring component, the more heat flow is accumulated. Not only can the heat generated at different time points when the motor is running be monitored, but also the heat accumulated at the inner end of the gas collecting tank at different positions can be monitored to form multiple control groups, thereby further improving the monitoring accuracy.

[0033] 2. In the monitoring device and system for the electric actuator, the baffle, reset assembly and inner frame are arranged to concentrate heat flows in different directions to the inner end of the cavity. The baffle is used to evenly guide the heat flow so that it is evenly diffused to different positions in the cavity, ensuring that each gas collecting slot can collect an equal amount of heat flow, thereby reducing the influence of irrelevant variables on the temperature monitoring experiment and improving monitoring accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of the monitoring box of the present invention;

[0036] Figure 3 This is a schematic diagram of the outer ring structure of the present invention;

[0037] Figure 4 This is a disassembled diagram of the inner frame structure of the present invention;

[0038] Figure 5 This is a schematic diagram of the connection between the inner ring and the outer ring of the present invention;

[0039] Figure 6 It is a flowchart of the overall system of the present invention.

[0040] The meaning of each number in the figure is:

[0041] 10. Monitoring box; 110. Bracket; 120. Inner ring; 121. Gas collecting tank; 130. Connecting pipe; 140. Servo motor; 141. Gear;

[0042] 20, outer ring; 210, thermometer; 211, probe; 220, tooth groove;

[0043] 30. Inner frame; 310. Exhaust slot; 320. Partition; 321. Connecting slot; 330. Baffle; 331. Notch. DETAILED DESCRIPTION

[0044] 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 any creative efforts shall fall within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] See also Figure 1-Figure 2 As shown, one of the purposes of the present invention is to provide a monitoring device for an electric actuator, comprising a monitoring box 10, wherein a bracket 110 for supporting the electric actuator is provided at the inner end of the monitoring box 10, an inner ring 120 is provided in the middle of the monitoring box 10, and a plurality of gas collecting grooves 121 are provided in an array on the outer side of the inner ring 120 for collecting the heat flow discharged from the electric actuator in a zoned manner;

[0047] The outer ring 20 is sleeved on the outer side of the inner ring 120, and a temperature monitoring component is provided on the outer side of the outer ring 20. A driving mechanism is connected between the outer ring 20 and the top of the monitoring box 10, which drives the outer ring 20 to rotate along the outer side of the inner ring 120, adjusts the position of the temperature monitoring component, and monitors the heat flow at the inner end of the gas collecting groove 121 at different positions;

[0048] An inner frame 30 is provided at the inner end of the monitoring box 10, and a cavity for conducting flow is provided in the middle position of the inner frame 30. A conducting component is connected between the inner end of the cavity and each gas collecting groove 121 to guide the heat flow to the inner end of each gas collecting groove 121.

[0049] In specific use, when monitoring the heat dissipation efficiency of the motor heat dissipation holes, the motor to be monitored is first placed above the bracket 110 so that the heat dissipation position of the motor is directly opposite the cavity formed at the inner end of the inner frame 30. At this time, the motor is started. In order to ensure the accuracy of the monitoring results, it is necessary to consider the actual application of the motor, so it is necessary to connect different loads to the output shaft of the motor.

[0050] During the operation of the motor, the heat generated inside it will be guided by the internal fan and discharged to the cavity at the inner end of the inner frame 30 through the heat dissipation holes, and the heat flow at the inner end of the cavity will be guided to the inner ends of each gas collecting groove 121 for storage through the conductive component. At this time, the outer ring 20 is driven by the driving mechanism to rotate along the outside of the inner ring 120, the temperature monitoring component is adjusted to different positions, and the heat flow at the inner ends of the gas collecting grooves 121 at different positions is monitored to obtain temperature values.

[0051] It is worth noting that it takes time for the outer ring 20 to rotate, so the time points when the temperature monitoring component passes through the air collecting slots 121 at different positions are different. Correspondingly, the farther the inner end of the air collecting slot 121 is from the temperature monitoring component, the more accumulated heat flow. This can not only monitor the heat generated at different time points when the motor is running, but also form multiple control groups by monitoring the heat accumulated at the inner ends of the air collecting slots 121 at different positions, thereby further improving the monitoring accuracy.

[0052] In addition, if Figure 3 As shown, the temperature monitoring assembly includes a thermometer 210 and a probe 211 installed at the bottom end of the thermometer 210. An inner groove is opened on the inner side of the outer ring 20 at the bottom end of the thermometer 210. The probe 211 passes through the outer ring 20 and extends into the inner end of the inner groove.

[0053] like Figure 2 As shown, the drive mechanism includes a servo motor 140 and a gear 141 mounted on the side of the servo motor 140. The gear 141 is coaxially connected to the side of the servo motor 140. A plurality of tooth grooves 220 are formed in an array along the outer edge of the outer ring 20. The outer ring 20 is meshed with the gear 141 through the tooth grooves 220.

[0054] During specific use, when monitoring the heat flow at the inner ends of different gas collecting grooves 121, the servo motor 140 drives the gear 141 to rotate. Since the gear 141 maintains a meshing connection with the outer ring 20, the gear 141 in the rotating state will drive the outer ring 20 to rotate along the outer side of the inner ring 120. The inner groove opened on the inner side of the outer ring 20 exposes the tooth groove 220 therein. Therefore, when the inner groove is aligned with the top of the gas collecting groove 121 at the corresponding position as the outer ring 20 rotates, the end of the gear 141 located at the inner end of the inner groove will directly contact the heat flow collected at the inner end of the gas collecting groove 121 and collect the temperature of the current heat flow. Since the rotation speed of the outer ring 20 is constant, the time consumed by the tooth groove 220 to stay at the inner end of the gas collecting groove 121 at different positions is the same during each experiment, thereby eliminating the influence of irrelevant variables in the monitoring experiment on the experiment, and further improving the accuracy of the monitoring process.

[0055] Further, such as Figure 4 As shown, a partition 320 is provided at one end of the inner frame 30, and a connecting groove 321 is provided in the middle of the partition 320 for the heat dissipation end of the motor to be tested to extend therein, so as to expose the heat dissipation position to the inner end of the cavity, and cooperate with the side of the baffle 330 to isolate the cavity;

[0056] like Figure 4As shown, a baffle 330 is slidably provided at the inner end of the other end of the inner frame 30. The cross-sectional dimensions of the baffle 330 are consistent with the cross-sectional dimensions formed at the inner end of the inner frame 30. The baffle 330 forms an isolation surface at the inner end of the cavity. The heat flow flowing at the inner end of the cavity drives the baffle 330 to slide along the inner end of the cavity, and evenly guides the heat flow to various areas on the side of the baffle 330. The heat flow is evenly introduced into the inner ends of the gas collecting grooves 121 in conjunction with the conduction component. A reset component is connected between the baffle 330 and the inner wall of the inner frame 30 to drive the baffle 330 that has lost kinetic energy to reset.

[0057] like Figure 2 As shown, the conduction assembly includes a plurality of connecting pipes 130, one end of the connecting pipe 130 is connected to the inner end of the gas collecting tank 121, the inner side of the inner frame 30 is provided with a plurality of exhaust grooves 310 connected to the other end of the connecting pipe 130, and a baffle 330 is provided with a plurality of notches 331 on the side close to the partition 320;

[0058] In the initial state, the baffle 330 is located in the middle of the inner end of the inner frame 30, and each notch 331 is staggered with the exhaust slot 310 at the corresponding position;

[0059] When the heat flow flows along the inner end of the cavity, the side of the baffle 330 forms an isolation surface to drive the baffle 330 to slide away from the partition 320, and drives the baffle 330 to move to the inner edge of the inner frame 30, so that each notch 331 is aligned with the exhaust slot 310 at the corresponding position;

[0060] The side surface of the baffle 330 is an arc-shaped structure, and the cross-sectional dimension of the distal end of the side surface of the baffle 330 is smaller than the cross-sectional dimension of the proximal end thereof.

[0061] During specific use, during the heat flow guidance process, in order to ensure that the heat flow flowing to the inner end of each air collecting groove 121 is constant, after the heat flow is generated, the heat flow will be driven by the fan inside the motor to flow along the inner end of the cavity and gradually flow toward the side of the baffle 330, forming a thrust that will overcome the restriction of the reset component on the baffle 330. The reset component here can be a spring or a spring, which drives the baffle 330 to slide along the inner end of the cavity. At this time, each notch 331 follows the baffle 330 and gradually moves toward the position of the exhaust groove 310 until the notch 331 is aligned with the exhaust groove 310 port at the corresponding position. The heat flow gathered between the cavity and the side of the exhaust groove 310 will flow into the inner end of the exhaust groove 310. Since the heat flow discharged from the heat dissipation end of the motor continues to increase, the initial heat flow forms a pressure in the inner cavity that is not enough to overcome the restriction of the reset component on the baffle 330. Therefore, it will gather on the side of the baffle 330, the cavity and the side of the partition 320 to form the inner end of the space, and be evenly dispersed in different areas thereof until the pressure in the space is reduced with the heat. When the heat flow continues to flow in and reaches a level sufficient to overcome the restriction of the reset assembly on the baffle 330, the baffle 330 moves along the direction of the heat flow, driving the baffle 330 to move evenly, and the heat flow at different positions on the side of the baffle 330 is uniform, until the notch 331 on the side of the baffle 330 moves to align with the exhaust slot 310 at the corresponding position. At this time, the heat flow at the inner end of the cavity will flow along the channel connected by the notch 331 and the exhaust slot 310, and escape from the inner end of the cavity. The heat flow at the inner end of the cavity is evenly introduced into the inner ends of each gas collecting slot 121 through the connecting pipe 130, thereby preventing the heat flow direction from being changed due to heat dissipation holes in different positions, so that the monitoring equipment at a single position cannot obtain the heat flow in time. The baffle 330, the reset assembly and the inner frame 30 can concentrate the heat flow in different directions to the inner end of the cavity, and the baffle 330 evenly guides the heat flow so that it is evenly diffused to different positions of the cavity, ensuring that each gas collecting slot 121 can collect a uniform amount of heat flow, thereby reducing the influence of irrelevant variables on the temperature monitoring experiment and improving the monitoring accuracy.

[0062] Another object of the present invention is to provide a system for controlling a monitoring device for an electric actuator, such as Figure 6 As shown, it includes ventilation zone division module, temperature monitoring platform, monitoring data integration module and data model simulation module;

[0063] The ventilation zone division module is used to obtain the location and number of heat dissipation holes in each experiment and mark them;

[0064] The temperature monitoring platform includes a temperature monitoring module, a monitoring area adjustment module, and a servo motor control module. The temperature monitoring module is located at the inner end of the thermometer 210 and is used to obtain the temperature value at the inner end of the probe 211. The monitoring area adjustment module is used to locate the position of each gas collecting slot 121, mark each gas collecting slot 121, and divide the monitoring area. The servo motor control module is configured at the inner end of the servo motor 140 and is used to control the rotation state of the gear 141, customize the number of gear turns, cooperate with the gear 141 to drive the outer ring 20 to rotate, and set the pause point of the thermometer 210.

[0065] The monitoring data integration module obtains the temperature values ​​of the heat dissipation holes at different positions and quantities, divides the temperature values ​​according to the monitoring area, and obtains different temperature values ​​corresponding to the gas collecting slot 121 at the same position;

[0066] The data model simulation module combines the integrated temperature values ​​to develop a temperature value distribution simulation diagram. The temperature value distribution simulation diagram is used to obtain the heat dissipation change state of the heat dissipation holes in different positions and quantities, and determine the corresponding heat dissipation efficiency. The specific steps are as follows:

[0067] S1. Obtain the position and quantity status of the heat dissipation holes and mark the generated state point State;

[0068] S2, control the rotation state of the servo motor 140 through the servo motor control module, and obtain the number of revolutions of the gear 141 each time Rot number and the interval time T;

[0069] S3. Obtain the marking point Mk of each gas collecting tank 121 points , get the corresponding mark point Mk under different state points State points The temperature value Te values ;

[0070] S4. Get adjacent marker points Mk points The temperature growth rate between in is the adjacent marker point Mk points One of the markers Mk points The temperature value, is the adjacent marker point Mk points Another marker point Mk points Temperature value;

[0071] S5. Calculate the average temperature growth rate corresponding to each state point State in to is the growth rate of each temperature value corresponding to the state point State, and n is the total number of gas collecting slots 121 minus 1;

[0072] S6. For the average temperature numerical growth rates corresponding to the state points State, the state point State with the lowest average temperature numerical growth rate is marked as the best state point, and the state point State with the highest average temperature numerical growth rate is marked as the worst state point.

[0073] During specific use, in the process of controlling the monitoring experiment, in order to facilitate the identification of temperature values ​​at different monitoring positions, it is necessary to use the ventilation zone division module to obtain the position and number of the heat dissipation holes in each experiment and perform marking processing, that is, each time a heat exchange shell is replaced, the corresponding number and setting position of the heat dissipation holes will change, and the heat dissipation holes in different states will be marked as state points State. Subsequently, when the servo motor 140 drives the gear 141 to rotate, the servo motor control module controls the rotation state of the gear 141, customizes the number of gear turns, and cooperates with the gear 141 to drive the outer ring 20 to rotate, and sets the pause point of the thermometer 210, that is, defines the number of turns Rot of the gear 141 each time. number The interval time T is used for the probe 211 to monitor the temperature of the heat flow collected at the inner end of the gas collecting tank 121, and obtain the corresponding temperature value Te through the temperature monitoring module. values , because the temperature values ​​Te obtained at the inner end of different gas collecting tanks 121 during monitoring values This is because it takes a certain amount of time for the thermometer 210 to move to the adjacent gas collecting slot 121. During this process, the inner end of the gas collecting slot 121 will continue to flow with heat, causing the temperature to rise compared to the previous gas collecting slot 121. At this time, the adjacent mark point Mk is obtained. points The temperature growth rate between That is, the temperature change of the adjacent gas collecting slots 121, and finally calculate the average temperature value growth rate corresponding to each state point State The average temperature growth rate Inversely proportional to the heat dissipation efficiency of the state point State, the average temperature value growth rate The higher it is, the lower the heat dissipation efficiency of the state point State is, and the corresponding average temperature value growth rate The lower it is, the higher the heat dissipation efficiency of the state point State is.

[0074] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A monitoring device for an electric actuator, comprising a monitoring box (10), wherein an inner end of the monitoring box (10) is provided with a bracket (110) for supporting the electric actuator, wherein: An inner ring (120) is arranged in the middle of the monitoring box (10), and a plurality of gas collecting grooves (121) are arranged in an array outside the inner ring (120) for collecting heat flow discharged by the electric actuator in different zones; An outer ring (20) is sleeved on the outer side of the inner ring (120), a temperature monitoring component is arranged on the outer side of the outer ring (20), a driving mechanism is connected between the outer ring (20) and the top of the monitoring box (10), driving the outer ring (20) to rotate along the outer side of the inner ring (120), adjusting the position of the temperature monitoring component, and performing temperature monitoring on the heat flow at the inner end of the gas collecting groove (121) at different positions; An inner frame (30) is provided at the inner end of the monitoring box (10), a cavity for conducting flow is provided at the middle position of the inner frame (30), and a conducting component is connected between the inner end of the cavity and each of the gas collecting grooves (121) to guide the heat flow to the inner end of each of the gas collecting grooves (121); A partition (320) is provided at one end of the inner frame (30), and a connecting groove (321) is provided in the middle of the partition (320) for the heat dissipation end of the motor to be tested to extend therein, so as to expose the heat dissipation position to the inner end of the cavity, and cooperate with the side of the baffle (330) to isolate the cavity; A baffle (330) is slidably provided at the inner end of the other end of the inner frame (30); the cross-sectional dimensions of the baffle (330) are consistent with the cross-sectional dimensions formed at the inner end of the inner frame (30); the baffle (330) forms an isolation surface at the inner end of the cavity; the baffle (330) is driven to slide along the inner end of the cavity by the action of the heat flow flowing at the inner end of the cavity, and the heat flow is evenly guided to various areas on the side of the baffle (330); the heat flow is evenly guided to the inner ends of various gas collecting grooves (121) in cooperation with the conduction component; a reset component is connected between the baffle (330) and the inner wall of the inner frame (30) to drive the baffle (330) that has lost kinetic energy to reset.

2. The monitoring device for an electric actuator according to claim 1, characterized in that: The temperature monitoring component comprises a thermometer (210) and a probe (211) installed at the bottom end of the thermometer (210); an inner groove is provided on the inner side of the outer ring (20) at the bottom end of the thermometer (210); and the probe (211) passes through the outer ring (20) and extends into the inner end of the inner groove.

3. The monitoring device for an electric actuator according to claim 2, characterized in that: The driving mechanism comprises a servo motor (140) and a gear (141) mounted on a side of the servo motor (140); the gear (141) is coaxially connected to the side of the servo motor (140); a plurality of tooth grooves (220) are arranged in an array at an outer edge position of the outer ring (20); and the outer ring (20) is meshedly connected to the gear (141) via the tooth grooves (220).

4. The monitoring device for an electric actuator according to claim 3, characterized in that: The conduction assembly comprises a plurality of connecting pipes (130), one end of the connecting pipe (130) being in communication with the inner end of the gas collecting groove (121), a plurality of exhaust grooves (310) being in communication with the other end of the connecting pipe (130) being provided on the inner side of the inner frame (30), and a plurality of notches (331) being provided on a side of the baffle (330) close to the partition (320); In the initial state, the baffle (330) is located at the middle position of the inner end of the inner frame (30), and each notch (331) is arranged alternately with the exhaust slot (310) at the corresponding position; When the heat flow flows along the inner end of the cavity, the isolation surface formed by the side of the baffle (330) drives the baffle (330) to slide away from the partition (320), and drives the baffle (330) to move to the edge position of the inner end of the inner frame (30), and each notch (331) is aligned with the exhaust groove (310) at the corresponding position.

5. The monitoring device for electric actuator according to claim 4, characterized in that: The side surface of the baffle plate (330) is an arc-shaped structure, and the cross-sectional dimension of the distal end of the side surface of the baffle plate (330) is smaller than the cross-sectional dimension of the proximal end thereof.

6. A system for controlling the monitoring device for an electric actuator as claimed in claim 5, characterized in that: It includes ventilation zone division module, temperature monitoring platform, monitoring data integration module and data model simulation module; The ventilation area division module is used to obtain the position and number of heat dissipation holes in each experiment and perform marking processing; The temperature monitoring platform comprises a temperature monitoring module, a monitoring area adjustment module and a servo motor control module. The temperature monitoring module is arranged at the inner end of the thermometer (210) and is used to obtain the temperature value of the inner end of the probe (211). The monitoring area adjustment module is used to locate the position of each gas collecting slot (121), mark each gas collecting slot (121) and divide the monitoring area. The servo motor control module is arranged at the inner end of the servo motor (140) and is used to control the rotation state of the gear (141), customize the number of gear turns, cooperate with the gear (141) to drive the outer ring (20) to rotate, and set the pause point of the thermometer (210); The monitoring data integration module obtains temperature values ​​of the heat dissipation holes at different positions and quantities, divides the temperature values ​​according to the monitoring area division, and obtains different temperature values ​​corresponding to the gas collecting slot (121) at the same position; The data model simulation module combines the integrated temperature values ​​to formulate a temperature value distribution simulation diagram, obtains the heat dissipation change state of the heat dissipation holes in different positions and quantities through the temperature value distribution simulation diagram, and determines the corresponding heat dissipation efficiency. The specific steps are as follows: S1. Obtain the position status and quantity status of the heat dissipation holes, and mark the generated state point State; S2. Control the rotation state of the servo motor (140) through the servo motor control module to obtain the number of revolutions of the gear (141) each time Rot number and the interval time T; S3. Obtaining the marking point Mk of each gas collecting tank (121) points , get the corresponding mark point Mk under different state points State points The temperature value Te values ; S4. Get adjacent marking points Mk points The temperature growth rate between in is the adjacent marker point Mk points One of the markers Mk points The temperature value, is the adjacent marker point Mk points Another marker point Mk points The temperature value of S5. Calculate the average temperature value growth rate corresponding to each state point State in to is the growth rate of each temperature value corresponding to the state point State, and n is the total number of gas collecting slots (121) set minus 1; S6. For the average temperature value growth rates corresponding to the state points State, the state point State with the lowest average temperature value growth rate is marked as the best state point, and the state point State with the highest average temperature value growth rate is marked as the worst state point.

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