Comprehensive testing device of electric actuating mechanism

Abstract

The invention belongs to the technical field of electric actuating mechanism testing, and particularly discloses a comprehensive testing device of an electric actuating mechanism, which comprises a base plate, an operation table is fixed at the top of the base plate, a first adjusting groove is formed in the top of the operation table close to the edge of one side, and a second adjusting groove is formed in the top of the base plate. A second adjusting block is slidably connected into the second adjusting groove, a fixing plate is fixed to the top of the second adjusting block, and an oil tank is fixed to the position, close to the edge of one side, of the top of the fixing plate. According to the invention, by arranging the adjusting assembly, the feedback assembly and the protection assembly, the maximum value of the torque during testing of electric equipment with different powers can be adjusted, and meanwhile, in the torque testing process of the electric equipment, when the torque of the electric equipment reaches the maximum value, the electric equipment operates normally, interference is prevented, and the testing efficiency is improved. Moreover, the contact part of the feedback assembly is protected during normal operation after the electric equipment is tested, and the contact part is prevented from being damaged by dry friction.

Description

Technical Field

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

[0002] Comprehensive testing of electric actuators is very important. It can be used to determine whether new product development meets technical standards and requirements during new product development. Comprehensive factory testing of each electric actuator is the basis for judging whether the electric actuator meets factory standards.

[0003] Currently, when selecting electric equipment, it is necessary to perform a torque test on it before installation. During the torque test, existing test equipment cannot adjust the maximum torque limit of its test according to the power size of the test equipment, resulting in limitations in actual use. Summary of the invention

[0004] The purpose of the present invention is to provide a comprehensive testing device for an electric actuator, which solves the problem that the existing testing equipment cannot adjust the maximum torque limit of its test according to the power size of the testing equipment during the torque test process, resulting in limitations in actual use.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a comprehensive test device for an electric actuator, comprising a pad, an operating table is fixed on the top of the pad, a first adjustment groove is provided on the top of the operating table near one side edge, a second adjustment groove is provided on the top of the pad, a second adjustment block is slidably connected inside the second adjustment groove, a fixed plate is fixed on the top of the second adjustment block, an oil tank is fixed on the top of the fixed plate near one side edge, an oil filling pipe is connected to the top of the oil tank, a cylindrical cavity is provided inside the fixed plate and penetrates to one side, and an adjustment component for adjusting the upper limit of the maximum test torque is arranged inside the cylindrical cavity; A docking block is rotatably connected between the inner walls of the cylindrical cavity near one side edge, a fixing column is fixed between the inner walls of the cylindrical cavity near one side of the docking block, a feedback component is arranged inside the fixing column, and a protective component is arranged between the bottom of the oil tank and the fixing column.

[0006] Preferably, a first screw is rotatably connected between the inner walls on both sides of the first adjusting groove, and a second screw is rotatably connected between the inner walls on both sides of the second adjusting groove, one end of the first screw and one end of the second screw extend to the outside of the operating table, one end of the first screw and one end of the second screw are fixed with adjustment knobs, two first adjustment blocks are slidably connected inside the first adjusting groove, the two first adjustment blocks are threadedly connected to the outer surface of the first screw, and the threaded engagement directions of the two first adjustment blocks and the first screw are opposite, a splint is fixed on the top of the two first adjustment blocks, and the second adjustment block is threadedly connected to the second screw.

[0007] Preferably, the adjustment assembly includes an adjustment plate, which is slidably connected to the inside of the cylindrical cavity. Limiting grooves are provided on the inner walls on both sides of the cylindrical cavity. Both sides of the adjustment plate are correspondingly slidably engaged in the limiting grooves. One side of the adjustment plate is rotatably connected to a third screw, and one end of the third screw is threaded through the outside of the fixed plate.

[0008] Preferably, a scale groove is provided on the top of the fixed plate, and scale bars are provided on the inner bottom surface of the scale groove near the edges on both sides, and a through opening is provided on the inner bottom surface of the scale groove that penetrates into the interior of the cylindrical cavity, and a guide plate is fixed to the outer surface of the adjustment plate, the guide plate is located inside the through opening, and the top of the guide plate extends to the interior of the scale groove, a pointer is fixed on the top of the guide plate, and a first spring is fixed to the other side of the adjustment plate.

[0009] Preferably, the feedback component includes a movable disk, an inner cavity is opened inside the fixed column, the movable disk is slidably arranged inside the inner cavity, a hexagonal rod is fixed on one side of the movable disk, one end of the hexagonal rod slides through to the outside of the fixed column, a circular plate is fixed on one end of the hexagonal rod, and one side of the circular plate is fixed to one end of the first spring.

[0010] Preferably, an annular slide is provided on one side of the fixed column, and a plurality of pressing blocks are fixed at equal intervals along the circumferential direction on the other side of the movable disk, one end of each of the pressing blocks slides through the interior of the annular slide, one side of each of the pressing blocks is inclined, the edge of the outer surface of the movable disk is inclined on one side close to the hexagonal rod, and an arc groove is provided on the outer surface of the movable disk.

[0011] Preferably, an annular groove is provided between the inner walls of the cylindrical cavity near one side edge, an annular ring which is engaged in the annular groove is fixed on the outer surface of the docking block, a docking slot is provided on the outer surface of one side of the docking block, and a plurality of contact blocks are fixed on the outer surface of the other side of the docking block at equal intervals along the circumferential direction, one side of the plurality of contact blocks are inclined, one end of the plurality of contact blocks slides and extends to the inside of the annular slide, and the inclined surfaces of the plurality of contact blocks correspond to and fit into the inclined surface of the pressing block.

[0012] Preferably, the protective assembly includes a guide rod, an adjustment cavity is opened inside the fixed plate above the fixed column, the guide rod is located inside the adjustment cavity, the top of the guide rod slides through the inner bottom surface of the oil tank, the bottom of the guide rod slides through the inside of the cylindrical cavity, and the bottom of the guide rod is in contact with the inclined surface on the outer surface of the movable disk.

[0013] Preferably, a hexagonal plate is fixed on the outer surface of the guide rod, and the outer surface of the hexagonal plate is slidably fitted with the outer surface of the adjustment cavity. A second spring is fixed between the top of the hexagonal plate and the inner top surface of the adjustment cavity. A buffer cavity is opened inside the guide rod near the top edge, and the inner wall of the buffer cavity is provided with multiple side openings equidistantly along the circumferential direction that penetrate to the outer surface of the guide rod.

[0014] Preferably, a guide hole is provided on the inner bottom surface of the buffer cavity, and the bottom of the guide hole penetrates to the outer surface of the guide rod near the bottom edge, and an oil inlet hole is provided inside the fixed plate below the oil tank, one end of the oil inlet hole penetrates into the inside of the annular slide, and the other end of the oil inlet hole penetrates to the fitting part with the outer surface of the guide rod, and the other end of the oil inlet hole is offset and opposite to the lower outlet of the guide hole, and an oil outlet hole is provided at the bottom of the fixed plate and penetrates to the inside of the annular slide.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with an adjustment component, a feedback component and a protection component, which is conducive to adjusting the maximum value of the torque when testing electric devices of different powers. At the same time, during the torque test of the electric device, when the torque of the electric device reaches the maximum value, the electric device is operated normally to prevent interference, and when the electric device is operated normally after the test, the contact part of the feedback component is protected to prevent dry friction from damaging the contact part; 2. The present invention can adjust the maximum torque test value of electric equipment with different powers by providing an adjustment component. When the adjustment component is working, the third screw is rotated to push the adjustment plate to slide, thereby changing the pressing force on the first spring, and then changing the support strength of the feedback component, so as to achieve the purpose of adjusting the maximum test torque of the test equipment; 3. The present invention is provided with a feedback component, so that the test device can operate normally after the test device reaches the maximum test torque. When the feedback component is working, when the test device drives the docking block to rotate and reaches the maximum torque, the mutual constraint of the inclined surface can be released, and the pressing block can be pushed toward the first spring by the push of the inclined surface, and the movable disk can also be driven to slide to one side, so that the bottom of the guide rod is engaged in the arc groove, and the movable disk is limited; 4. The present invention is provided with a protective component to prevent wear at the joint of the feedback component during normal operation after the test equipment reaches the maximum torque. When the protective component is working, the movable disk slides to one side when the feedback component is working, and the guide rod is lifted upward under the action of the inclined surface at the edge. During the lifting process, the side port on the outer surface of the guide rod is lifted to the inside of the oil tank. At this time, the oil inside the oil tank can be introduced into the annular slide to lubricate its connection parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a three-dimensional structure of one side of a comprehensive testing device for an electric actuator proposed by the present invention; Figure 2 The other side of the three-dimensional structural schematic diagram of the comprehensive testing device for the electric actuator proposed by the present invention; Figure 3 The present invention provides a top-view stereoscopic structural diagram of a fixing plate in a comprehensive testing device for an electric actuator; Figure 4 A three-dimensional structural schematic diagram of one side of a fixed plate in a comprehensive testing device for an electric actuator proposed by the present invention; Figure 5 The present invention provides a schematic cross-sectional three-dimensional structural diagram of a fixing plate in a comprehensive testing device for an electric actuator; Figure 6 The present invention provides a cross-sectional three-dimensional structural schematic diagram of a feedback component in a comprehensive testing device for an electric actuator; Figure 7 The present invention provides a cross-sectional three-dimensional structural schematic diagram of a fixed column in a comprehensive testing device for an electric actuator; Figure 8 The present invention provides a cross-sectional three-dimensional structural schematic diagram of a docking block in a comprehensive testing device for an electric actuator; Fig. 9 The present invention provides a schematic diagram of the main three-dimensional structure of a movable disk in a comprehensive testing device for an electric actuator; Fig.10 For the present invention Figure 5 A magnified partial view of point A in the middle.

[0017] In the figure: 1, pad; 2, operating table; 3, first adjustment slot; 4, first adjustment block; 5, clamping plate; 6, first screw; 7, adjustment knob; 8, second adjustment slot; 9, second screw; 10, second adjustment block; 11, fixed plate; 12, oil tank; 13, oil filling pipe; 14, scale slot; 15, scale bar; 16, pointer; 17, third screw; 18, through-hole; 19, guide plate; 20, limit slot; 21, adjustment plate; 22, fixed column; 23 , docking block; 24, annular groove; 25, annular ring; 26, cylindrical cavity; 27, circular plate; 28, first spring; 29, hexagonal rod; 30, inner cavity; 31, movable disk; 32, arc groove; 33, annular slide; 34, pressing block; 35, adjusting cavity; 36, hexagonal plate; 37, second spring; 38, guide rod; 39, buffer cavity; 40, side port; 41, guide hole; 42, oil inlet hole; 43, docking bayonet; 44, contact block; 45, oil outlet hole. DETAILED DESCRIPTION

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

[0019] See also Figure 1-10 The present invention provides a technical solution: a comprehensive test device for an electric actuator, comprising a backing plate 1, an operating table 2 is fixed on the top of the backing plate 1, a first adjusting groove 3 is opened on the top of the operating table 2 near one side edge, a second adjusting groove 8 is opened on the top of the backing plate 1, a second adjusting block 10 is slidably connected inside the second adjusting groove 8, a fixing plate 11 is fixed on the top of the second adjusting block 10, an oil tank 12 is fixed on the top of the fixing plate 11 near one side edge, an oil filling pipe 13 is connected to the top of the oil tank 12, a cylindrical cavity 26 penetrating to one side is opened inside the fixing plate 11, and an adjusting component for adjusting the upper limit of the maximum test torque is arranged inside the cylindrical cavity 26; A docking block 23 is rotatably connected between the inner walls of the cylindrical cavity 26 near one side edge, a fixing column 22 is fixed between the inner walls of the cylindrical cavity 26 near one side of the docking block 23, a feedback component is arranged inside the fixing column 22, a protective component is arranged between the bottom of the oil tank 12 and the fixing column 22, a first screw 6 is rotatably connected between the inner walls on both sides of the first adjusting groove 3, a second screw 9 is rotatably connected between the inner walls on both sides of the second adjusting groove 8, one end of the first screw 6 and one end of the second screw 9 both extend to the outside of the operating table 2, one end of the first screw 6 and one end of the second screw 9 are fixed with an adjusting knob 7, two first adjusting blocks 4 are slidably connected inside the first adjusting groove 3, the two first adjusting blocks 4 are threadedly connected to the outer surface of the first screw 6, and the threaded engagement directions between the two first adjusting blocks 4 and the first screw 6 are opposite, a clamping plate 5 is fixed on the top of the two first adjusting blocks 4, and the second adjusting block 10 is threadedly connected to the second screw 9.

[0020] The effect achieved is that the maximum torque test value of electric devices with different powers can be adjusted through the adjustment component, the feedback component can make the test device operate normally after the test device reaches the maximum test torque, and the protective component can prevent the docking part of the feedback component from being worn during the normal operation of the test device after reaching the maximum torque. When the entire device is in use, the first screw 6 is rotated by the adjustment knob 7 to drive the two clamps 5 to clamp and fix the electric device to be tested, and then the second screw 9 is driven to make the fixing plate 11 move toward one end of the electric device to be tested until the output end of the electric device is inserted into the docking bayonet 43 on the docking block 23. When adjusting, the threaded engagement direction between the two first adjustment blocks 4 and the first screw 6 is opposite, so that when the first screw 6 is rotated, the two first adjustment blocks 4 can be driven to move relative to each other.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the adjustment component includes an adjustment plate 21, which is slidably connected to the inside of the cylindrical cavity 26. The inner walls on both sides of the cylindrical cavity 26 are provided with limit grooves 20. Both sides of the adjustment plate 21 are correspondingly slidably engaged in the inside of the limit grooves 20. One side of the adjustment plate 21 is rotatably connected with a third screw 17, one end of the third screw 17 is threadedly penetrated to the outside of the fixed plate 11, and a scale groove 14 is provided on the top of the fixed plate 11. The inner bottom surface of the scale groove 14 is provided with scale bars 15 near the edges on both sides. The inner bottom surface of the scale groove 14 is provided with a through hole 18 that penetrates into the inside of the cylindrical cavity 26. A guide plate 19 is fixed to the outer surface of the adjustment plate 21. The guide plate 19 is located inside the through hole 18, and the top of the guide plate 19 extends to the inside of the scale groove 14. A pointer 16 is fixed to the top of the guide plate 19, and a first spring 28 is fixed to the other side of the adjustment plate 21.

[0022] The effect achieved is that the third screw 17 is rotated to push the adjustment plate 21 to slide, thereby changing the pressing force on the first spring 28, and then changing the supporting strength of the feedback component, so as to achieve the purpose of adjusting the maximum test torque of the test equipment. While pushing the adjustment plate 21 to slide, the guide plate 19 will drive the pointer 16 to slide. When the pointer 16 slides, the value on the corresponding scale bar 15 will change in a certain way. People can obtain the maximum torque size of the adjustment by observing the change in the value.

[0023] like Figure 5-10 As shown, the feedback component includes a movable disk 31, an inner cavity 30 is provided inside the fixed column 22, and the movable disk 31 is slidably arranged inside the inner cavity 30. A hexagonal rod 29 is fixed to one side of the movable disk 31, and one end of the hexagonal rod 29 slides through the outside of the fixed column 22, and a circular plate 27 is fixed to one end of the hexagonal rod 29, and one side of the circular plate 27 is fixed to one end of the first spring 28. An annular slide 33 is provided on one side of the fixed column 22, and a plurality of pressing blocks 34 are fixed to the other side of the movable disk 31 at equal distances along the circumferential direction, and one end of the plurality of pressing blocks 34 slides through the inside of the annular slide 33, and one side of the plurality of pressing blocks 34 is inclined. 1 is inclined at one side near the hexagonal rod 29, an arc groove 32 is provided on the outer surface of the movable disk 31, an annular groove 24 is provided between the inner walls of the cylindrical cavity 26 near one side edge, an annular ring 25 is fixed on the outer surface of the docking block 23 and is engaged in the annular groove 24, a docking bayonet 43 is provided on one side outer surface of the docking block 23, and a plurality of contact blocks 44 are fixed on the other side outer surface of the docking block 23 at equal intervals along the circumferential direction, one side of the plurality of contact blocks 44 are all inclined, one end of the plurality of contact blocks 44 slides and extends to the inside of the annular slideway 33, and the inclined surfaces of the plurality of contact blocks 44 correspond to and fit with the inclined surface of the pressing block 34.

[0024] The effect achieved is that when the test equipment drives the docking block 23 to rotate, since the inclined surface of the contact block 44 corresponds to the inclined surface of the pressing block 34 and fits each other, the mutual constraint of the inclined surfaces can be released when the maximum torque is reached. The pressing block 34 can be pushed toward the first spring 28 by the push of the inclined surface, and the movable disk 31 can also be driven to slide to one side, so that the bottom of the guide rod 38 is engaged in the arc groove 32, thereby limiting the movable disk 31 and triggering the protection component to work.

[0025] like Figure 2 , Figure 5 , Figure 6 and Fig.10As shown, the protection assembly includes a guide rod 38, an adjustment cavity 35 is opened inside the fixing plate 11 above the fixing column 22, the guide rod 38 is located inside the adjustment cavity 35, the top of the guide rod 38 slides through the inner bottom surface of the oil tank 12, the bottom of the guide rod 38 slides through the inside of the cylindrical cavity 26, and the bottom of the guide rod 38 and the inclined surface on the outer surface of the movable plate 31 are fitted with each other, a hexagonal plate 36 is fixed on the outer surface of the guide rod 38, the outer surface of the hexagonal plate 36 and the outer surface of the adjustment cavity 35 are slidably fitted, a second spring 37 is fixed between the top of the hexagonal plate 36 and the inner top surface of the adjustment cavity 35, and the inner portion of the guide rod 38 is opened near the top edge There is a buffer chamber 39, and the inner wall of the buffer chamber 39 is equidistantly provided with a plurality of side openings 40 penetrating to the outer surface of the guide rod 38 along the circumferential direction. A guide hole 41 is provided on the inner bottom surface of the buffer chamber 39, and the bottom of the guide hole 41 penetrates to the outer surface of the guide rod 38 near the bottom edge. An oil inlet hole 42 is provided inside the fixed plate 11 below the oil tank 12, and one end of the oil inlet hole 42 penetrates to the inside of the annular slide 33, and the other end of the oil inlet hole 42 penetrates to the fitting part with the outer surface of the guide rod 38, and the other end of the oil inlet hole 42 is offset and opposite to the lower outlet of the guide hole 41, and an oil outlet hole 45 penetrating to the inside of the annular slide 33 is provided at the bottom of the fixed plate 11.

[0026] The effect achieved is that the movable disk 31 slides to one side and lifts the guide rod 38 upward under the action of the inclined surface at the edge. During the lifting process, the side port 40 on the outer surface of the guide rod 38 is lifted to the inside of the oil tank 12. At this time, the oil inside the oil tank 12 enters the buffer chamber 39 from the side port 40, and then enters the oil inlet hole 42 through the guide hole 41 inside the buffer chamber 39, and finally enters the annular slide 33 from the oil inlet hole 42 to lubricate the rotation of the multiple contact blocks 44 to prevent dry friction. The lubricated oil is discharged from the annular slide 33 through the oil outlet hole 45. During the upward lifting process of the guide rod 38, the lower opening of the guide hole 41 is interconnected with the side opening of the oil inlet hole 42. When the guide rod 38 is not lifted upward, the lower opening of the guide hole 41 is offset relative to the side opening of the oil inlet hole 42, and the side opening of the oil inlet hole 42 is closed under the adhesion of the outer surface of the guide rod 38.

[0027] Working principle: This device converts the torsional moment generated when the electric device rotates into a horizontal thrust on the feedback component by making the inclined surface of the contact block 44 correspond to the inclined surface of the pressing block 34 and fit each other, so that the adjustment component can be used to test whether the adjusted maximum torque has been reached. The conversion size between the torque force and the horizontal thrust on the feedback component is related to the inclination of the inclined surface, and the value can be obtained through force analysis. In actual use, it is first necessary to insert the output end of the electric device into the docking bayonet 43 on the docking block 23, and then when the electric device rotates, it will drive the docking block 23 to rotate. When the torsional moment of the electric device reaches the maximum torque set by the adjustment component, the mutual constraint of the inclined surface between the contact block 44 and the pressing block 34 can be released. The pressing block 34 can be pushed toward the first spring 28 by the push of the inclined surface, and the movable disk 31 will also be driven to slide to one side, so that the bottom of the guide rod 38 is engaged in the arc groove 32 to limit the movable disk 31. During the lifting process, the side opening 40 on the outer surface of the guide rod 38 is lifted to the inside of the oil tank 12. At this time, the oil in the oil tank 12 will enter the buffer chamber 39 from the side opening 40, and then enter the oil inlet hole 42 through the guide hole 41 in the buffer chamber 39, and finally enter the annular slide 33 from the oil inlet hole 42 to lubricate the rotation of the multiple contact blocks 44 to prevent dry friction. The lubricated oil is discharged from the annular slide 33 through the oil outlet hole 45. When it is reset after the test, since the inner bottom surface of the arc groove 32 is an arc surface, the constraint force on the bottom of the guide rod 38 has a maximum value. When the horizontal thrust on the movable disk 31 is greater than the maximum value of the constraint, the guide rod 38 can slide out from the inner bottom surface of the arc groove 32. At this time, it is only necessary to rotate the maximum test torque of the adjustment component to the maximum value, and the movable disk 31 can be pushed to one side of the annular slide 33 by the elastic force of the first spring 28, so as to release the constraint between the arc groove 32 and the bottom of the guide rod 38, and complete the reset of the entire equipment, which is convenient for subsequent reuse.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A comprehensive testing device for an electric actuator, characterized in that: The invention comprises a backing plate (1), an operating table (2) is fixed on the top of the backing plate (1), a first adjustment groove (3) is provided on the top of the operating table (2) near one side edge, a second adjustment groove (8) is provided on the top of the backing plate (1), a second adjustment block (10) is slidably connected inside the second adjustment groove (8), a fixing plate (11) is fixed on the top of the second adjustment block (10), an oil tank (12) is fixed on the top of the fixing plate (11) near one side edge, an oil filling pipe (13) is connected to the top of the oil tank (12), a cylindrical cavity (26) is provided inside the fixing plate (11) and penetrates to one side, and an adjustment component for adjusting the upper limit of the maximum test torque is arranged inside the cylindrical cavity (26); A docking block (23) is rotatably connected between the inner walls of the cylindrical cavity (26) near one side edge, a fixing column (22) is fixed between the inner walls of the cylindrical cavity (26) near one side of the docking block (23), a feedback component is arranged inside the fixing column (22), and a protection component is arranged between the bottom of the oil tank (12) and the fixing column (22).

2. The comprehensive testing device for an electric actuator according to claim 1, characterized in that: A first screw (6) is rotatably connected between the inner walls on both sides of the first adjustment groove (3), and a second screw (9) is rotatably connected between the inner walls on both sides of the second adjustment groove (8). One end of the first screw (6) and one end of the second screw (9) both extend to the outside of the operating table (2). One end of the first screw (6) and one end of the second screw (9) are both fixed with an adjustment knob (7). Two first adjustment blocks (4) are slidably connected inside the first adjustment groove (3). The two first adjustment blocks (4) are both threadedly connected to the outer surface of the first screw (6), and the threads of the two first adjustment blocks (4) and the first screw (6) are screwed in opposite directions. A clamping plate (5) is fixed to the top of the two first adjustment blocks (4), and the second adjustment block (10) is threadedly connected to the second screw (9).

3. The comprehensive testing device for an electric actuator according to claim 1, characterized in that: The adjustment assembly comprises an adjustment plate (21), the adjustment plate (21) being slidably connected to the inside of the cylindrical cavity (26), the inner walls on both sides of the cylindrical cavity (26) being provided with limit grooves (20), the two sides of the adjustment plate (21) being correspondingly slidably engaged in the inside of the limit grooves (20), one side of the adjustment plate (21) being rotatably connected to a third screw rod (17), one end of the third screw rod (17) being threadedly penetrated to the outside of the fixed plate (11).

4. The comprehensive testing device for an electric actuator according to claim 3, characterized in that: The top of the fixed plate (11) is provided with a scale groove (14), and the inner bottom surface of the scale groove (14) is provided with scale bars (15) near the two side edges. The inner bottom surface of the scale groove (14) is provided with a through hole (18) penetrating into the cylindrical cavity (26). The outer surface of the adjustment plate (21) is fixed with a guide plate (19), the guide plate (19) is located inside the through hole (18), and the top of the guide plate (19) extends into the scale groove (14). The top of the guide plate (19) is fixed with a pointer (16), and the other side of the adjustment plate (21) is fixed with a first spring (28).

5. The comprehensive testing device for an electric actuator according to claim 4, characterized in that: The feedback component includes a movable disk (31), an inner cavity (30) is opened inside the fixed column (22), and the movable disk (31) is slidably arranged inside the inner cavity (30). A hexagonal rod (29) is fixed to one side of the movable disk (31), and one end of the hexagonal rod (29) slides through the outside of the fixed column (22). A circular plate (27) is fixed to one end of the hexagonal rod (29), and one side of the circular plate (27) is fixed to one end of the first spring (28).

6. The comprehensive testing device for an electric actuator according to claim 5, characterized in that: An annular slideway (33) is provided on one side of the fixed column (22), and a plurality of pressing blocks (34) are fixed at equal intervals along the circumferential direction on the other side of the movable disk (31). One end of each of the pressing blocks (34) slides through the inside of the annular slideway (33), and one side of each of the pressing blocks (34) is inclined. The outer surface edge of the movable disk (31) is inclined on one side close to the hexagonal rod (29), and an arc groove (32) is provided on the outer surface of the movable disk (31).

7. The comprehensive testing device for an electric actuator according to claim 6, characterized in that: An annular groove (24) is provided between the inner walls of the cylindrical cavity (26) near one side edge, an annular ring (25) is fixed on the outer surface of the docking block (23) and is engaged with the inside of the annular groove (24), a docking bayonet (43) is provided on the outer surface of one side of the docking block (23), and a plurality of contact blocks (44) are fixed to the outer surface of the other side of the docking block (23) at equal intervals along the circumferential direction, one side of the plurality of contact blocks (44) are all inclined, one end of the plurality of contact blocks (44) is slidably extended to the inside of the annular slideway (33), and the inclined surfaces of the plurality of contact blocks (44) are corresponding to and mutually engaged with the inclined surface of the pressing block (34).

8. The comprehensive testing device for an electric actuator according to claim 7, characterized in that: The protection component comprises a guide rod (38). An adjustment cavity (35) is provided inside the fixing plate (11) above the fixing column (22). The guide rod (38) is located inside the adjustment cavity (35). The top of the guide rod (38) slides through the bottom surface of the oil tank (12). The bottom of the guide rod (38) slides through the inside of the cylindrical cavity (26). The bottom of the guide rod (38) fits the inclined surface on the outer surface of the movable plate (31).

9. The comprehensive testing device for an electric actuator according to claim 8, characterized in that: A hexagonal plate (36) is fixed to the outer surface of the guide rod (38), the outer surface of the hexagonal plate (36) is slidably fitted with the outer surface of the adjustment cavity (35), a second spring (37) is fixed between the top of the hexagonal plate (36) and the inner top surface of the adjustment cavity (35), a buffer cavity (39) is provided inside the guide rod (38) near the top edge, and a plurality of side openings (40) are provided on the inner wall of the buffer cavity (39) at equal intervals along the circumferential direction and penetrate to the outer surface of the guide rod (38).

10. The comprehensive testing device for electric actuator according to claim 9, characterized in that: The bottom surface of the buffer chamber (39) is provided with a guide hole (41), the bottom of the guide hole (41) penetrates to the outer surface of the guide rod (38) near the bottom edge, the interior of the fixed plate (11) is provided with an oil inlet hole (42) located below the oil tank (12), one end of the oil inlet hole (42) penetrates to the inside of the annular slideway (33), the other end of the oil inlet hole (42) penetrates to the part in contact with the outer surface of the guide rod (38), and the other end of the oil inlet hole (42) is offset and opposite to the lower outlet of the guide hole (41), and the bottom of the fixed plate (11) is provided with an oil outlet hole (45) penetrating to the inside of the annular slideway (33).

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