High-efficiency electric actuating mechanism detection equipment

Abstract

The invention discloses efficient electric actuating mechanism detection equipment which comprises an equipment base, a hysteresis brake, a dynamic torque sensor, a clamp, an air blower and an equipment control box, an air outlet of the air blower is fixedly communicated with an air inlet pipe, and an automatic adjusting mechanism is arranged outside a rotating shaft of the hysteresis brake. The other rotating shaft of the dynamic torque sensor and the output shaft of the electric actuating mechanism are movably mounted through a centering mounting mechanism; and an automatic sealing mechanism is arranged above the equipment base. The automatic adjusting mechanism can adjust the heat dissipation effect of the hysteresis brake according to the rotating speed of the rotating shaft of the hysteresis brake; the centering mounting mechanism can be matched with the clamping effect of the clamping plate to realize quick disassembly and assembly of the electric actuating mechanism so as to realize efficient detection; the self-sealing mechanism can be matched with the clamping effect or the loosening effect of the clamping plates so as to relieve the sealing effect on the hysteresis air gap or achieve the sealing effect on the hysteresis air gap.

Description

Technical Field

[0001] The present invention relates to the technical field of actuator detection, and particularly to an efficient electric actuator detection device. Background Art

[0002] An actuator is an essential and important part of an automatic control system. Its function is to receive the control signal sent by the controller, change the magnitude of the controlled medium, so as to maintain the controlled variable at the required value or within a certain range. Actuators can be divided into three categories according to their energy forms: pneumatic, hydraulic, and electric. Among them, the electric actuator is usually installed outside the valve to drive the valve. When the output torque of the electric actuator reaches the value of the load torque, it can cut off the power supply to stop the electric actuator, thus ensuring that the electric actuator can protect the valve and the actuator itself in case of over-torque failure. Therefore, to ensure that the electric actuator can work normally to improve the control quality of the valve, multiple parameters need to be detected before its actual application. Among them, the detection of the load torque is a mandatory inspection item.

[0003] The existing electric actuator load torque detection equipment mainly includes a hysteresis brake, a dynamic torque sensor, a fixture, an equipment control box for controlling the hysteresis current of the hysteresis brake, and an air-cooling mechanism for dissipating heat from the hysteresis brake. The rotating shafts of the hysteresis brake, the output shaft of the electric actuator, and the two rotating shafts of the dynamic torque sensor are all installed through couplings and screws. The electric actuator is centered and fixed by the fixture. After starting the electric actuator through an external controller, the hysteresis current input to the hysteresis brake can be changed through the equipment control box, so that the hysteresis brake generates a braking torque on the output shaft of the electric actuator, and the dynamic torque sensor can detect the torque, speed, and output power of the electric actuator in real time. When the torque value detected by the dynamic torque sensor reaches the value range of the load torque of the electric actuator, if the electric actuator can cut off the power supply and stop rotating, it indicates that this product is qualified; otherwise, this product is unqualified.

[0004] During the process of detecting the load torque of the above-mentioned electric actuator, a blower needs to be installed outside it to dissipate heat by introducing high-speed air flow into the hysteresis brake. However, the continuous and non-discriminatory operation of the blower will consume a large amount of electric energy; moreover, the installation method between the output shaft of the electric actuator and the rotating shaft of the dynamic torque sensor through a coupling and screws will affect the disassembly and assembly efficiency of the electric actuator, thus reducing the detection efficiency of the electric actuator; in addition, the sealing of the hysteresis air gap of the hysteresis brake after use needs to be manually carried out by the tester, and the manual sealing of the hysteresis air gap, as the last step of the detection process, is very easy to be ignored. Therefore, there is a need for an efficient electric actuator detection device that can autonomously adjust the operating state of the blower, quickly align and install the electric actuator, and autonomously seal the hysteresis air gap. Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantages in the prior art that the continuous and non-discriminatory operation of the blower will consume a large amount of electric energy, the installation method between the output shaft of the electric actuator and the rotating shaft of the dynamic torque sensor through a coupling and screws will affect the disassembly and assembly efficiency of the electric actuator, and the manual sealing of the hysteresis air gap, as the last step of the detection process, is very easy to be ignored, and to propose an efficient electric actuator detection device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions: An efficient electric actuator detection device includes a device base, a hysteresis brake, a dynamic torque sensor, a fixture, a blower and a device control box installed above the device base. The air outlet of the blower is fixedly connected to an air inlet pipe extending into the hysteresis brake. An autonomous adjustment mechanism for autonomously adjusting the air volume of the blower is arranged outside the rotating shaft of the hysteresis brake. The autonomous adjustment mechanism includes an insulating ring sleeved outside the rotating shaft of the hysteresis brake through an insulating bracket. A resistance wire electrically connected to the blower is installed outside the insulating ring. Electrically conductive sliders electrically connected to the blower are symmetrically arranged outside the resistance wire. An autonomous adjustment part is arranged outside the electrically conductive sliders; The rotating shaft of the hysteresis brake is fixedly installed with one rotating shaft of the dynamic torque sensor through a coupling and screws. The other rotating shaft of the dynamic torque sensor is movably installed with the output shaft of the electric actuator through an alignment installation mechanism. The alignment installation mechanism includes a connection sleeve fixedly connected to the outside of the rotating shaft of the dynamic torque sensor. A connection column is movably connected inside the connection sleeve. Symmetrically axially fixed to the outside of the connection column are alignment rods adapted to the installation holes outside the output shaft of the electric actuator; Above the device base, there is a self-sealing mechanism for autonomously sealing the hysteresis air gap of the hysteresis brake. The self-sealing mechanism includes sealing rings symmetrically and closely attached to the outside of the hysteresis air gap.

[0007] The above technical solution further includes: The device control box is used to synchronously open and close the hysteresis brake, the dynamic torque sensor, and the blower and is used to control the hysteresis current of the hysteresis brake; the hysteresis brake can generate a braking torque on the output shaft of the electric actuator, and the dynamic torque sensor can real-time detect the torque, speed, and output power of the electric actuator.

[0008] The self-adjusting component includes a fixed ring fixedly connected to the outside of the rotating shaft of the hysteresis brake and a movable ring movably connected to the outside of the rotating shaft of the hysteresis brake. An elastic telescopic rod is symmetrically and fixedly connected between the fixed ring and the movable ring. The outside of the fixed ring is symmetrically hinged with a main hinged rod, and the outside of the movable ring is symmetrically hinged with a secondary hinged rod. One end of the secondary hinged rod away from the movable ring is hinged to the middle of the main hinged rod, and a counterweight ball is fixedly connected to the end of the main hinged rod away from the fixed ring; when the fixed ring and the movable ring rotate with the rotating shaft of the hysteresis brake, the axially symmetric counterweight balls will be subjected to an outward centrifugal force and drive the movable ring away from the resistance wire through the main hinged rod and the secondary hinged rod.

[0009] The outside of the movable ring is rotatably connected with a sliding ring, and symmetrically fixed to the outside of the sliding ring are insulating limiting rods fixedly connected to the conductive sliders. The insulating limiting rods are slidably connected inside the insulating frame; the movable ring, the sliding ring, the insulating limiting rods, and the conductive sliders slide synchronously.

[0010] The fixture includes a placement table slidably connected to the top of the device base and an internally threaded block fixedly connected to the top of the device base. Symmetrically fixed to the top of the placement table are clamping plates for clamping the electric actuator. The outside of the placement table is rotatably connected with a locking screw threadedly connected to the internally threaded block, and a knob is fixedly connected to the end of the locking screw away from the internally threaded block; by rotating the knob, the locking screw can drive the clamping plates to clamp on the outside of the electric actuator.

[0011] An external abutting spring is fixedly connected between the connecting sleeve and the connecting column. Rectangular driving grooves are symmetrically formed on the inner side of the connecting sleeve. Rectangular accommodating grooves are symmetrically formed on the outer side of the connecting column. A rectangular driving block is slidably connected inside the rectangular accommodating groove. Abutting inclined surfaces are arranged above the left and right sides of the rectangular driving block. A reset spring is fixedly connected between the rectangular driving block and the rectangular accommodating groove. The centering of the electric actuator can be achieved by inserting the centering rod into the installation hole. With the clamping action of the clamping plate, the connecting column can be completely pressed against the end of the reset spring, and the connecting sleeve can be driven to rotate through the rectangular driving block.

[0012] A vertical connecting arm is fixedly connected to the outer side of the sealing ring. A horizontal meshing tooth bar that is slidably connected to the top of the equipment base is fixedly connected to the outer side of the vertical connecting arm. A meshing gear that is rotatably connected to the top of the equipment base is meshingly connected to the outer side of the horizontal meshing tooth bar. The meshing gears rotating towards each other can drive the sealing ring away from the hysteresis air gap through the symmetric horizontal meshing tooth bars and vertical connecting arms to stop blocking.

[0013] The self-sealing mechanism further includes a U-shaped connecting frame fixedly connected to the outer side of the placing table. The U-shaped connecting frame is slidably connected to the top of the equipment base. A horizontal double-sided tooth bar is fixedly connected to the outer side of the U-shaped connecting frame. The horizontal double-sided tooth bar meshes with the symmetric meshing gears. The horizontal double-sided tooth bar moves with the placing table and the clamping plate through the U-shaped connecting frame, causing the symmetric meshing gears to rotate towards each other.

[0014] The present invention has the following beneficial effects: 1. The self-adjusting mechanism in the present invention can adjust the centrifugal force received by the counterweight ball according to the rotational speed of the shaft of the hysteresis brake, that is, it can adjust the moving distance of the conductive slider outside the resistance wire to change the resistance value of the resistance wire connected to the blower circuit, thereby changing the current passing through the blower, and further changing the air volume of the blower, so as to enhance or weaken the heat dissipation effect of the hysteresis brake, avoiding excessive power consumption due to the continuous and undifferentiated operation of the blower.

[0015] 2. The middle installation mechanism in the present invention can achieve the centering installation and fixation of the electric actuator with the cooperation of the clamping action of the clamping plate. By turning the knob to loosen the clamping plate, the connecting column can be reset to the initial position state, that is, the electric actuator can be quickly disassembled and assembled, so as to improve the detection efficiency of the electric actuator and achieve efficient detection.

[0016] 3. The self-sealing mechanism in the present invention can cooperate with the clamping or loosening action of the clamping plate, so that the sealing ring moves away from or approaches the hysteresis air gap. That is, when centering and fixing the electric actuator, the sealing effect of the symmetric sealing ring on the hysteresis air gap can be automatically released, and when releasing the centering and fixing of the electric actuator, the sealing effect of the symmetric sealing ring on the hysteresis air gap can be automatically achieved, without manually sealing the hysteresis air gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic diagram of the overall structure of a high-efficiency electric actuator detection device proposed by the present invention; Figure 2 FIG. is a partial structure schematic diagram of Embodiment 1 in the present invention; Figure 3 is Figure 2 a schematic enlarged view of the structure at A in Figure 4 FIG. is a schematic diagram of the structure of the self-adjusting mechanism in the present invention; Figure 5 FIG. is a partial structure schematic diagram of Embodiment 2 in the present invention; Figure 6 is Figure 5 a schematic enlarged view of the structure at B in Figure 7 FIG. is a partial structure schematic diagram of Embodiment 3 in the present invention.

[0018] In the figure: 1. Equipment base; 2. Hysteresis brake; 21. Hysteresis air gap; 3. Dynamic torque sensor; 4. Fixture; 41. Placement table; 42. Internal thread block; 43. Clamping plate; 44. Locking screw; 45. Knob; 5. Blower; 6. Equipment control box; 7. Air inlet pipe; 8. Self-adjusting mechanism; 81. Insulating frame; 82. Insulating ring; 83. Resistance wire; 84. Conductive slider; 85. Self-adjusting member; 851. Fixed ring; 852. Movable ring; 853. Elastic telescopic rod; 854. Main hinge rod; 855. Sub-hinge rod; 856. Counterweight ball; 857. Sliding ring; 858. Insulating limit rod; 9. Coupling; 10. Screw; 11. Electric actuator; 12. Centering and mounting mechanism; 121. Connecting sleeve; 122. Connecting column; 123. Centering rod; 124. Outer compression spring; 125. Rectangular driving groove; 126. Rectangular accommodating groove; 127. Rectangular driving block; 128. Abutting inclined surface; 129. Reset spring; 13. Mounting hole; 14. Self-sealing mechanism; 141. Sealing ring; 142. Vertical connecting arm; 143. Horizontal meshing rack; 144. Meshing gear; 145. U-shaped connecting frame; 146. Horizontal double-sided rack; 15. Protective cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1 As Figures 1-4 shown, a high-efficiency electric actuator detection device proposed by the present invention includes a device base 1, a hysteresis brake 2 installed above the device base 1, a dynamic torque sensor 3, a fixture 4, a blower 5, and a device control box 6. A protective cover 15 located outside the self-adjusting mechanism 8 is fixedly connected to the outside of the device base 1. The rotating shaft of the hysteresis brake 2 and one rotating shaft of the dynamic torque sensor 3 are fixedly installed through a coupling 9 and a screw 10. The other rotating shaft of the dynamic torque sensor 3 and the output shaft of the electric actuator 11 are movably installed through a centering installation mechanism 12. The hysteresis brake 2 can generate a braking torque on the output shaft of the electric actuator 11, and the dynamic torque sensor 3 can detect the torque, speed, and output power of the electric actuator 11 in real time. The electric actuator 11 can be centered and fixed through the fixture 4. The air outlet of the blower 5 is fixedly connected to an intake pipe 7 extending into the hysteresis brake 2. By starting the blower 5, outside cool air can enter the hysteresis brake 2 through the intake pipe 7 for heat dissipation. The device control box 6 is used to synchronously turn on and off the hysteresis brake 2, the dynamic torque sensor 3, and the blower 5 and is used to control the hysteresis current of the hysteresis brake 2; A self-adjusting mechanism 8 for independently adjusting the air volume of the blower 5 is arranged outside the rotating shaft of the hysteresis brake 2. The self-adjusting mechanism 8 includes an insulating ring 82 sleeved outside the rotating shaft of the hysteresis brake 2 through an insulating bracket 81. A resistance wire 83 electrically connected to the blower 5 is installed outside the insulating ring 82. Electrically conductive sliders 84 electrically connected to the blower 5 are symmetrically arranged outside the resistance wire 83. The farther the electrically conductive slider 84 is from the self-adjusting member 85, the smaller the resistance value of the resistance wire 83 connected to the blower 5 circuit, the greater the current passing through the blower 5, the greater the air volume of the blower 5, and the more cool air enters the hysteresis brake 2 through the intake pipe 7, so that the heat dissipation effect of the hysteresis brake 2 is better; An independent adjustment member 85 is provided outside the conductive slider 84. The independent adjustment member 85 includes a fixed ring 851 fixedly connected to the outside of the rotating shaft of the hysteresis brake 2 and a movable ring 852 movably connected to the outside of the rotating shaft of the hysteresis brake 2. The movable ring 852 can rotate and slide on the outside of the rotating shaft of the hysteresis brake 2. An elastic telescopic rod 853 is axially symmetrically fixedly connected between the fixed ring 851 and the movable ring 852. A sliding ring 857 is rotatably connected to the outside of the movable ring 852. Insulating limit rods 858 fixedly connected to the conductive slider 84 are symmetrically fixedly connected to the outside of the sliding ring 857. The insulating limit rods 858 are slidably connected to the inside of the insulating frame 81. The movable ring 852, the sliding ring 857, the insulating limit rods 858 and the conductive slider 84 slide synchronously. Main hinge rods 854 are axially symmetrically hinged to the outside of the fixed ring 851. Sub-hinge rods 855 are axially symmetrically hinged to the outside of the movable ring 852. One end of the sub-hinge rod 855 away from the movable ring 852 is hinged to the middle of the main hinge rod 854. A counterweight ball 856 is fixedly connected to the end of the main hinge rod 854 away from the fixed ring 851. When the fixed ring 851 and the movable ring 852 rotate with the rotating shaft of the hysteresis brake 2, the axially symmetric counterweight balls 856 are subjected to an outward centrifugal force and drive the movable ring 852 away from the resistance wire 83.

[0021] In this embodiment: After the rotating shaft of the dynamic torque sensor 3 and the output shaft of the electric actuator 11 are installed by the centering installation mechanism 12 and the electric actuator 11 is centered and fixed by the clamp 4, that is, after the electric actuator 11 is completed with centering installation and fixation, the hysteresis brake 2, the dynamic torque sensor 3, and the blower 5 can be started through the equipment control box 6, and then the electric actuator 11 is started so that the output shaft of the electric actuator 11, the two rotating shafts of the dynamic torque sensor 3, and the rotating shaft of the hysteresis brake 2 rotate, and the hysteresis brake 2 generates a braking torque on the output shaft of the electric actuator 11, while the dynamic torque sensor 3 detects the torque, speed, and output power of the electric actuator 11 in real time. During this process, the heat inside the hysteresis brake 2 can be dissipated by the cool air entering through the intake pipe 7, and the hysteresis current input to the hysteresis brake 2 can be changed through the equipment control box 6. When the torque value detected on the dynamic torque sensor 3 reaches the numerical range of the load torque of the electric actuator 11, if the electric actuator 11 can cut off the power supply and stop rotating, it indicates that this product is qualified, otherwise this product is unqualified; During the rotation of the rotating shaft of the hysteresis brake 2, the fixed ring 851 and the movable ring 852 rotate with the rotating shaft of the hysteresis brake 2, causing the axially symmetric counterweight balls 856 to be subjected to centrifugal force and deflect outwards, so that the main hinge rod 854 and the secondary hinge rod 855 deflect and drive the movable ring 852 away from the resistance wire 83. The movable ring 852 drives the conductive slider 84 to move through the sliding ring 857 and the insulating limiting rod 858. The movement of the conductive slider 84 outside the resistance wire 83 can change the resistance value of the resistance wire 83 connected to the circuit of the blower 5, thereby changing the current passing through the blower 5, and further changing the air volume of the blower 5 and the air intake volume entering the intake pipe 7; During the process of changing the hysteresis current input to the hysteresis brake 2, the greater the hysteresis current input to the hysteresis brake 2, the greater the braking torque of the hysteresis brake 2, the lower the rotational speed of the rotating shaft of the hysteresis brake 2, but the more heat generated inside the hysteresis brake 2. The lower the rotational speed of the rotating shaft of the hysteresis brake 2, the smaller the centrifugal force received by the counterweight ball 856 and the smaller the deflection amplitude outwards, that is, the smaller the distance that the movable ring 852 drives the conductive slider 84 to move through the sliding ring 857 and the insulating limiting rod 858. Then the resistance value of the resistance wire 83 connected to the circuit of the blower 5 is smaller, the current passing through the blower 5 is larger, the air volume of the blower 5 is larger, and the cooler air entering the inside of the hysteresis brake 2 through the intake pipe 7 is more, thereby enhancing the heat dissipation effect of the hysteresis brake 2. On the contrary, the smaller the hysteresis current input to the hysteresis brake 2, the larger the resistance value of the resistance wire 83 connected to the circuit of the blower 5, the smaller the current passing through the blower 5, the smaller the air volume of the blower 5, and the less cooler air entering the inside of the hysteresis brake 2 through the intake pipe 7, thereby weakening the heat dissipation effect of the hysteresis brake 2; The self-adjusting mechanism 5 in this high-efficiency electric actuator detection device can enhance or weaken the heat dissipation effect of the hysteresis brake 2 according to the rotational speed of the rotating shaft of the hysteresis brake 2, so as to prevent the blower 5 from continuously running and running without discrimination and consuming more electric energy.

[0022] Embodiment 2 As Figure 1 、 Figures 5-6 shown, based on Embodiment 1, the fixture 4 includes a placement table 41 slidably connected to the top of the device base 1 and an internally threaded block 42 fixedly connected to the top of the device base 1. Symmetrically fixed to the top of the placement table 41 are clamping plates 43 for clamping the electric actuator 11. Rotatably connected to the outside of the placement table 41 is a locking screw 44 threadedly connected to the internally threaded block 42. One end of the locking screw 44 away from the internally threaded block 42 is fixedly connected to a knob 45. By rotating the knob 45, the locking screw 44 can drive the clamping plates 43 to clamp outside the electric actuator 11; The centering installation mechanism 12 includes a connecting sleeve 121 fixedly connected to the outside of the rotating shaft of the dynamic torque sensor 3. A connecting column 122 is movably connected inside the connecting sleeve 121. An external abutting spring 124 is fixedly connected between the connecting sleeve 121 and the connecting column 122. Rectangular driving grooves 125 are symmetrically formed on the inner side of the connecting sleeve 121. Symmetrically fixed to the outside of the connecting column 122 are centering rods 123 adapted to the mounting holes 13 on the outside of the output shaft of the electric actuator 11. Symmetrically formed on the outside of the connecting column 122 are rectangular accommodating grooves 126. Slidably connected inside the rectangular accommodating grooves 126 are rectangular driving blocks 127. On the upper left and right sides of the rectangular driving blocks 127 are provided abutting inclined surfaces 128. The arrangement of the abutting inclined surfaces 128 can assist the rectangular driving blocks 127 to enter and exit the rectangular driving grooves 125. A return spring 129 is fixedly connected between the rectangular driving blocks 127 and the rectangular accommodating grooves 126. By the centering rod 123 entering the inside of the mounting hole 13, the centering of the electric actuator 11 can be achieved. With the clamping action of the clamping plate 43, the connecting column 122 can be completely pressed against the end of the return spring 129 and drive the connecting sleeve 121 to rotate through the rectangular driving block 127.

[0023] In this embodiment: Based on the first embodiment, when installing the rotating shaft of the dynamic torque sensor 3 and the output shaft of the electric actuator 11 through the centering installation mechanism 12, the electric actuator 11 can be placed on the placement table 41, and the connecting column 122 can be rotated so that the centering rod 123 enters the inside of the mounting hole 13 to achieve centering. At the same time, the knob 45 is rotated so that the locking screw 44 drives the clamping plate 43 to clamp on the outside of the electric actuator 11, so that the connecting column 122 enters the inside of the connecting sleeve 121, and the rectangular driving block 127 enters the inside of the rectangular accommodating groove 126 through the abutting inclined surface 128 and compresses the return spring 129 until the external abutting spring 124 is completely compressed. In this way, the centering installation and fixation of the electric actuator 11 can be completed; When the electric actuator 11 is started, the output end of the electric actuator 11 drives the connecting column 122 to rotate through the centering rod 123. When the rectangular driving block 127 rotates and aligns with the rectangular driving groove 125, the compressed return spring 129 drives the rectangular driving block 127 to enter the inside of the rectangular driving groove 125. Thereafter, the connecting column 122 drives the connecting sleeve 121 and the dynamic torque sensor 3 to rotate through the rectangular driving block 127 for subsequent torque detection; When the knob 45 is rotated to make the locking screw 44 drive the clamping plate 43 to loosen, the compressed external abutting spring 124 immediately drives the connecting column 122 to pop out of the connecting sleeve 121, and the rectangular driving block 127 enters the inside of the rectangular accommodating groove 126 through the abutting inclined surface 128 and compresses the return spring 129 until the external abutting spring 124 drives the connecting column 122 to reset to the initial position state; In the centering and installation mechanism 12 of this high-efficiency electric actuator detection device, it can cooperate with the clamping action of the clamping plate 43 to achieve the rapid disassembly and assembly of the electric actuator 11, so as to improve the detection efficiency of the electric actuator 11 and achieve efficient detection.

[0024] Embodiment III As Figure 1 and Figure 7 shown, based on Embodiment I and Embodiment II, an autonomous sealing mechanism 14 for autonomously sealing the hysteresis air gap 21 of the hysteresis brake 2 is provided above the equipment base 1. The autonomous sealing mechanism 14 includes sealing rings 141 symmetrically attached to the outside of the hysteresis air gap 21 to prevent dust, metal particles, etc. from entering the hysteresis air gap 21 and affecting the rotational stability of the rotating shaft of the hysteresis brake 2. The autonomous sealing mechanism 14 further includes a U-shaped connecting frame 145 fixedly connected to the outside of the placement table 41. The U-shaped connecting frame 145 is slidably connected to the top of the equipment base 1. A horizontal double-sided tooth bar 146 is fixedly connected to the outside of the U-shaped connecting frame 145. The horizontal double-sided tooth bar 146 moves along with the placement table 41 and the clamping plate 43 through the U-shaped connecting frame 145 and causes the symmetrical meshing gears 144 to rotate towards each other. A vertical connecting arm 142 is fixedly connected to the outside of the sealing ring 141. A horizontal meshing tooth bar 143 slidably connected to the top of the equipment base 1 is fixedly connected to the outside of the vertical connecting arm 142. The outside of the horizontal meshing tooth bar 143 is meshed with a meshing gear 144 rotatably connected to the top of the equipment base 1. The horizontal double-sided tooth bar 146 meshes with the symmetrical meshing gears 144. The meshing gears 144 rotating towards each other drive the sealing ring 141 away from the hysteresis air gap 21 through the symmetrical horizontal meshing tooth bars 143 and the vertical connecting arms 142 and no longer block it.

[0025] In this embodiment: Based on Embodiment I and Embodiment II, when rotating the knob 45 to center and fix the electric actuator 11, the placement table 41 can drive the horizontal double-sided tooth bar 146 to move towards the hysteresis brake 2 through the U-shaped connecting frame 145, causing the symmetrical meshing gears 144 to rotate towards each other. The meshing gears 144 rotating towards each other drive the symmetrical horizontal meshing tooth bars 143 to move towards the hysteresis brake 2, enabling the vertical connecting arm 142 to drive the sealing ring 141 away from the hysteresis air gap 21 and no longer block it, that is, the sealing effect of the symmetrical sealing rings 141 on the hysteresis air gap 21 can be automatically released when centering and fixing the electric actuator 11. Similarly, when rotating the knob 45 in the reverse direction to remove the electric actuator 11, the sealing ring 141 can approach the hysteresis air gap 21 and block it outside, that is, the sealing effect of the symmetrical sealing rings 141 on the hysteresis air gap 21 can be automatically achieved when releasing the centering and fixing of the electric actuator 11. The autonomous sealing mechanism 14 in the present high-efficiency electric actuator detection equipment can cooperate with the clamping action or loosening action of the clamping plate 43 so that the sealing ring 141 moves away from the hysteresis air gap 21 to release the sealing effect on the hysteresis air gap 21 or moves close to the hysteresis air gap 21 to achieve the sealing effect on the hysteresis air gap 21, without the need for manual sealing of the hysteresis air gap 21.

[0026] 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. An efficient electric actuator detection device, comprising a device base (1), a hysteresis brake (2), a dynamic torque sensor (3), a fixture (4), a blower (5) and a device control box (6) installed above the device base (1), characterized in that: The air outlet of the blower (5) is fixedly communicated with an air inlet pipe (7) extending into the interior of the hysteresis brake (2). An automatic adjustment mechanism (8) for automatically adjusting the air volume of the blower (5) is arranged outside the rotating shaft of the hysteresis brake (2). The automatic adjustment mechanism (8) includes an insulating ring (82) sleeved outside the rotating shaft of the hysteresis brake (2) through an insulating bracket (81). A resistance wire (83) electrically connected to the blower (5) is installed outside the insulating ring (82). Electrically conductive sliders (84) electrically connected to the blower (5) are symmetrically arranged outside the resistance wire (83). An automatic adjustment member (85) is arranged outside the electrically conductive slider (84). The rotating shaft of the hysteresis brake (2) and one rotating shaft of the dynamic torque sensor (3) are fixedly installed through a coupling (9) and a screw (10). The other rotating shaft of the dynamic torque sensor (3) and the output shaft of the electric actuator (11) are movably installed through a centering installation mechanism (12). The centering installation mechanism (12) includes a connecting sleeve (121) fixedly connected to the outside of the rotating shaft of the dynamic torque sensor (3). A connecting column (122) is movably connected inside the connecting sleeve (121). Centering rods (123) axially symmetrically fixedly connected to the outside of the connecting column (122) and adapted to the mounting holes (13) outside the output shaft of the electric actuator (11) are provided. An automatic sealing mechanism (14) for automatically sealing the hysteresis air gap (21) of the hysteresis brake (2) is arranged above the equipment base (1). The automatic sealing mechanism (14) includes sealing rings (141) symmetrically attached to the outside of the hysteresis air gap (21).

2. An efficient electric actuator detection device according to claim 1, characterized in that: The equipment control box (6) is used to synchronously open and close the hysteresis brake (2), the dynamic torque sensor (3), and the blower (5) and to control the hysteresis current of the hysteresis brake (2).

3. An efficient electric actuator detection device according to claim 1, characterized in that: The automatic adjustment member (85) includes a fixed ring (851) fixedly connected to the outside of the rotating shaft of the hysteresis brake (2) and a movable ring (852) movably connected to the outside of the rotating shaft of the hysteresis brake (2). Elastic telescopic rods (853) are axially symmetrically fixedly connected between the fixed ring (851) and the movable ring (852). Main hinge rods (854) are axially symmetrically hinged to the outside of the fixed ring (851). Sub-hinge rods (855) are axially symmetrically hinged to the outside of the movable ring (852). One end of the sub-hinge rod (855) away from the movable ring (852) is hinged to the middle of the main hinge rod (854). A counterweight ball (856) is fixedly connected to the end of the main hinge rod (854) away from the fixed ring (851).

4. An efficient electric actuator detection device according to claim 3, characterized in that: A sliding ring (857) is rotatably connected to the outside of the movable ring (852). Insulating limit rods (858) fixedly connected to the electrically conductive sliders (84) are symmetrically fixedly connected to the outside of the sliding ring (857). The insulating limit rods (858) are slidably connected inside the insulating bracket (81).

5. An efficient electric actuator detection device according to claim 1, characterized in that: The fixture (4) includes a placement table (41) slidably connected to the top of the equipment base (1) and an internally threaded block (42) fixedly connected to the top of the equipment base (1). Clamping plates (43) for clamping the electric actuator (11) are symmetrically and fixedly connected to the top of the placement table (41). A locking screw rod (44) threadedly connected to the internally threaded block (42) is rotatably connected to the outside of the placement table (41). A knob (45) is fixedly connected to one end of the locking screw rod (44) away from the internally threaded block (42).

6. An efficient electric actuator detection device according to claim 1, characterized in that: An external abutting spring (124) is fixedly connected between the connecting sleeve (121) and the connecting column (122). Rectangular driving grooves (125) are axially symmetrically formed inside the connecting sleeve (121). Rectangular accommodating grooves (126) are axially symmetrically formed on the outside of the connecting column (122). A rectangular driving block (127) is slidably connected inside the rectangular accommodating groove (126). Abutting inclined surfaces (128) are arranged above the left and right sides of the rectangular driving block (127). A return spring (129) is fixedly connected between the rectangular driving block (127) and the rectangular accommodating groove (126).

7. An efficient electric actuator detection device according to claim 5, characterized in that: A vertical connecting arm (142) is fixedly connected to the outside of the sealing ring (141). A horizontal meshing tooth bar (143) slidably connected to the top of the equipment base (1) is fixedly connected to the outside of the vertical connecting arm (142). A meshing gear (144) rotatably connected to the top of the equipment base (1) is meshed with the outside of the horizontal meshing tooth bar (143).

8. An efficient electric actuator detection device according to claim 7, characterized in that: The self-sealing mechanism (14) further includes a U-shaped connecting frame (145) fixedly connected to the outside of the placement table (41). The U-shaped connecting frame (145) is slidably connected to the top of the equipment base (1). A horizontal double-sided tooth bar (146) is fixedly connected to the outside of the U-shaped connecting frame (145). The horizontal double-sided tooth bar (146) is meshed with the symmetric meshing gears (144).

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