A thrust detection device for electric actuator

Abstract

The present invention belongs to the technical field of detection devices, and in particular discloses a thrust detection device for an electric actuator, comprising a fixed column, a compression spring, an adjusting bolt, a scale bar, a pointer, a guide plate and a contact disk, a buffer cavity being provided inside the fixed column near one side edge, an inner wall of one side of the buffer cavity extending to the outer side of the fixed column, a movable cavity being provided on the other side of the fixed column, a movable column being provided between the movable cavity and the buffer cavity, a hexagonal cavity being provided inside the movable column, an adjusting member being provided inside the hexagonal cavity, and an alarm device being provided on the outer surface of the fixed column; the present invention, by providing an adjusting member, an alarm device, a feedback assembly and a limit assembly, is advantageous for testing the thrust of the electric actuator, and when the thrust of the electric actuator is greater than the upper limit of the test thrust adjusted by the adjusting member, an alarm is promptly issued and the equipment is limited, so as to prevent the electric actuator from continuing to push forward and causing damage to the equipment.

Description

Technical Field

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

[0002] Electric actuators are indispensable in the operation of industrial automation equipment. Whether the thrust of the electric actuator meets the design requirements directly affects whether it can drive the load to work normally. Therefore, thrust testing of the electric actuator is required during its production.

[0003] Currently, most methods for detecting the thrust of electric actuators use dynamometers to measure them. The internal structure of the existing dynamometer consists of a force-measuring spring and an adjusting bolt. During the measurement process, when the thrust of the electric actuator is large, the force-measuring spring will be compressed. After the force-measuring spring is compressed to the limit position, the force-measuring mechanism still moves forward. At this time, the dynamometer can easily be damaged, resulting in an inability to measure accurate data. Summary of the Invention

[0004] The purpose of the present invention is to provide an electric actuator thrust detection device, which solves the problem in the current thrust test process that when the thrust of the electric actuator is large, the force measuring spring will be compressed. After the force measuring spring is compressed to the limit position, the force measuring mechanism still moves forward, which easily damages the dynamometer.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: a thrust detection device for an electric actuator, comprising a fixed column, a compression spring, an adjusting bolt, a scale bar, a pointer, a guide plate, and a contact plate; a buffer cavity is defined inside the fixed column near one side edge; an inner wall of one side of the buffer cavity extends through to the outside of the fixed column; a movable cavity is defined on the other side of the fixed column; a movable column is disposed between the movable cavity and the buffer cavity; a hexagonal cavity is defined inside the movable column; an adjusting member is disposed inside the hexagonal cavity; and an alarm device is disposed on the outer surface of the fixed column;

[0006] A conical block is fixed at one end of the movable column, a feedback component is provided inside the conical block, a limiting component is provided on the inner wall of the fixed column, a flange ring is fixed on the outer surface of the fixed column near one side edge, a buffer ring is fixed on the outer surface of the movable column near one side edge, a retaining ring is fixed in the middle between the inner walls of the buffer cavity, a buffer spring is fixed on one side of the buffer ring, and one end of the buffer spring is fixed on one inner wall of the buffer cavity.

[0007] Preferably, the adjusting member includes a hexagonal base plate, which is slidably connected to the inside of the hexagonal cavity, the compression spring is fixed to one side of the hexagonal base plate, and a hexagonal push plate is fixed to one end of the compression spring, which is slidably connected to the inside of the hexagonal cavity, the adjusting bolt is rotatably connected to one end of the hexagonal push plate, and a cylindrical cavity is opened at the other end of the movable column, and one end of the adjusting bolt is threaded through the inside of the cylindrical cavity.

[0008] Preferably, a connecting rod is fixed to the other side of the hexagonal base plate, one end of the connecting rod slides through to one side of the conical block, the contact disk is fixed to one end of the connecting rod, the contact disk is located inside the movable cavity, a scale bar is fixed to the outer surface of the fixed column near one side edge, the through-hole is opened at the top of the scale bar and passes through to the interior of the movable cavity, the guide plate is fixed to the outer surface of the contact disk, the guide plate is located inside the through-hole, and the top of the guide plate extends to the top of the scale bar, and the pointer is fixed to the top of the guide plate.

[0009] Preferably, the alarm device includes an annular light cover, which is fixed on the outer surface of the fixed column, and three light strips are fixed on the outer surface of the annular light cover at equal intervals, and the outer surface of the fixed column is provided with multiple movable rods that slide through the inside of the movable cavity at equal intervals along the circumferential direction, and the outer surface of the annular light cover is provided with multiple interfaces that penetrate to the inside at equal intervals along the circumferential direction, and multiple copper contacts are fixed on the inner walls on both sides of the multiple interfaces.

[0010] Preferably, one end of each of the movable rods extends to the interior of the interface, and the other end of each of the movable rods is fixed with a contact block, and each of the contact blocks is located inside the movable cavity. Copper blocks are fixed on both sides of each of the movable rods, and each of the copper blocks is correspondingly fitted with the copper contacts. A wedge-shaped groove is provided on the top of each of the movable rods close to the contact block.

[0011] Preferably, the limiting assembly includes a plurality of positioning rods, the inner wall of the fixed column is provided with a plurality of inner cavities, the plurality of positioning rods are located inside the inner cavities, one end of the plurality of positioning rods slides through to fit the outer surface of the movable rod, the outer surface of one side of the plurality of positioning rods is inclined near the edge of one end, the outer surfaces of the plurality of positioning rods are fixed with sliding rings, and a downward pressure spring is fixed between the top of the plurality of sliding rings and the internal top surface of the inner cavity.

[0012] Preferably, the feedback assembly includes a plurality of lifting rods, a plurality of reciprocating cavities are opened at equal intervals along the circumferential direction inside the conical block, an adjustment cavity is opened in the middle of the conical block, the connecting rod is located inside the adjustment cavity, and the plurality of lifting rods are all located inside the reciprocating cavity, and one end of the plurality of lifting rods passes through the interior of the adjustment cavity.

[0013] Preferably, a conical ring is fixed to the outer surface of the connecting rod, and one end of the plurality of lifting rods located inside the regulating cavity is in the shape of an arc surface, and the arc surface of the lifting rod is opposite to one side of the conical ring.

[0014] Preferably, a fixing plate is fixed to the outer surface of each of the lifting rods, each of the fixing plates is correspondingly located inside the reciprocating cavity, and a lifting spring is fixed between the bottom of each of the fixing plates and the inner bottom surface of the reciprocating cavity.

[0015] Preferably, the other ends of the multiple lifting rods slide through the outside of the conical block, and the outer surface of the conical block is provided with multiple notches equidistantly along the circumferential direction, and spring paddles are fixed inside the multiple notches, and the other ends of the multiple lifting rods are in contact with the inner walls of the spring paddles.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with an adjusting member, an alarm device, a feedback assembly and a limit assembly, which is conducive to the thrust test of the electric actuator. When the thrust of the electric actuator exceeds the test thrust upper limit adjusted by the adjusting member, an alarm is promptly issued and the equipment is limited, thereby preventing the electric actuator from continuing to push forward and causing damage to the equipment;

[0018] 2. The present invention is provided with an adjusting member, which can adjust the upper limit of the maximum thrust of the test. When the adjusting member is working, the compression spring is compressed by rotating the adjusting bolt, thereby changing the upper limit of the maximum thrust test;

[0019] 3. The present invention is provided with an alarm device and a feedback assembly. When the thrust of the electric actuator is large, the alarm device can be triggered by the feedback assembly to alert people. When the feedback assembly is working, when the thrust of the electric actuator is large, the contact plate will be pushed toward the side of the flange ring. During the pushing process, the connecting rod will be driven to move, thereby driving the movable rod to slide and control the on and off of the alarm device. When the alarm device is working, the extension length of the movable rod changes the contact between the copper block and the copper contacts at different positions, so that light strips with different extensions are turned on. People can infer the thrust of the electric actuator by observing the colors of the different light strips.

[0020] 4. The present invention is provided with a limit assembly, which can position the movable rod when the thrust of the electric actuator is large, thereby preventing the electric actuator from continuing to push forward. When the limit assembly is working, when the length of the movable rod extending outward is large, the movable rod can be positioned by the mutual engagement of the positioning rod and the wedge-shaped groove, and then the contact block and the tapered block are mutually limited, so that the electric actuator can be prevented from continuing to push forward. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of one side of a thrust detection device for an electric actuator proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the other side of the three-dimensional structure of the thrust detection device of the electric actuator proposed by the present invention;

[0023] Figure 3 The present invention provides a schematic diagram of a cross-sectional three-dimensional structure of a thrust detection device for an electric actuator;

[0024] Figure 4 The present invention provides a schematic diagram of a cross-sectional three-dimensional structure of a fixed column in a thrust detection device for an electric actuator;

[0025] Figure 5 The present invention provides a schematic cross-sectional perspective view of a movable column and a tapered block in a thrust detection device for an electric actuator;

[0026] Figure 6 The present invention provides a schematic top view of a three-dimensional structure of a movable rod in a thrust detection device for an electric actuator;

[0027] Figure 7 For the present invention Figure 3 A partial enlarged view of point A in the middle;

[0028] Figure 8 For the present invention Figure 4 A magnified partial view of point B in the middle.

[0029] Figure: 1, fixed column; 2, flange ring; 3, annular lamp cover; 4, lamp strip; 5, scale bar; 6, through-hole; 7, pointer; 8, guide plate; 9, contact plate; 10, movable cavity; 11, buffer cavity; 12, movable column; 13, buffer spring; 14, retaining ring; 15, interface; 16, copper contact; 17, tapered block; 18, cylindrical cavity; 19, buffer ring; 20, adjusting bolt; 21, movable rod; 2 2. Contact block; 23. Wedge-shaped groove; 24. Copper block; 25. Down-pressure spring; 26. Hexagonal cavity; 27. Hexagonal push plate; 28. Compression spring; 29. ​​Hexagonal bottom plate; 30. Adjustment cavity; 31. Spring pick; 32. Notch; 33. Connecting rod; 34. Reciprocating cavity; 35. Lifting rod; 36. Lifting spring; 37. Fixed plate; 38. Inner cavity; 39. Positioning rod; 40. Conical ring; 41. Sliding ring. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying 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, those skilled in the art who do not make innovative embodiments are still within the scope of protection of the present invention.

[0031] See also Figure 1-8 The present invention provides a technical solution: a thrust detection device for an electric actuator, comprising a fixed column 1, a compression spring 28, an adjusting bolt 20, a scale bar 5, a pointer 7, a guide plate 8, and a contact plate 9. A buffer cavity 11 is provided inside the fixed column 1 near one edge. The inner wall of one side of the buffer cavity 11 extends through the outer side of the fixed column 1. A movable cavity 10 is provided on the other side of the fixed column 1. A movable column 12 is provided between the movable cavity 10 and the buffer cavity 11. A hexagonal cavity 26 is provided inside the movable column 12. An adjusting member is provided inside the hexagonal cavity 26. An alarm device is provided on the outer surface of the fixed column 1.

[0032] A conical block 17 is fixed to one end of the movable column 12, and a feedback component is provided inside the conical block 17. A limiting component is provided on the inner wall of the fixed column 1. A flange ring 2 is fixed to the outer surface of the fixed column 1 near one edge. A buffer ring 19 is fixed to the outer surface of the movable column 12 near one edge. A retaining ring 14 is fixed in the middle between the inner walls of the buffer cavity 11. A buffer spring 13 is fixed to one side of the buffer ring 19, and one end of the buffer spring 13 is fixed to one inner wall of the buffer cavity 11.

[0033] The effect achieved is that, by providing an adjusting part, the maximum thrust upper limit of the test can be adjusted, and through the alarm device and the feedback component, when the thrust of the electric actuator is large, the alarm device can be triggered by the feedback component to alarm people, and by setting a limit component, the movable rod 21 can be positioned when the thrust of the electric actuator is large, thereby preventing the electric actuator from continuing to push forward. The entire device is conducive to the thrust test of the electric actuator. When the thrust of the electric actuator is greater than the test thrust upper limit adjusted by the adjusting part, an alarm is issued in time and the equipment is limited at the same time, preventing the electric actuator from continuing to push forward and causing damage to the equipment. Before triggering the alarm device and the positioning component, since the thrust of the electric actuator is too large, when it continues to push forward, it will drive the conical block 17 to move to one side, thereby stretching the buffer spring 13 outward, so that the thrust of the electric actuator is buffered.

[0034] like Figure 1 、 Figure 3 and Figure 5As shown, the adjusting member includes a hexagonal base plate 29, which is slidably connected to the inside of the hexagonal cavity 26, a compression spring 28 is fixed to one side of the hexagonal base plate 29, one end of the compression spring 28 is fixed with a hexagonal push plate 27, the hexagonal push plate 27 is slidably connected to the inside of the hexagonal cavity 26, an adjusting bolt 20 is rotatably connected to one end of the hexagonal push plate 27, the other end of the movable column 12 is provided with a cylindrical cavity 18, one end of the adjusting bolt 20 is threadedly penetrated into the inside of the cylindrical cavity 18, and the other side of the hexagonal base plate 29 is fixed with a connecting bolt. Rod 33, one end of the connecting rod 33 slides through to one side of the tapered block 17, the contact disk 9 is fixed to one end of the connecting rod 33, the contact disk 9 is located inside the active cavity 10, the outer surface of the fixed column 1 is fixed with a scale bar 5 near one side edge, the through-hole 6 is opened at the top of the scale bar 5 and penetrates into the interior of the active cavity 10, the guide plate 8 is fixed to the outer surface of the contact disk 9, the guide plate 8 is located inside the through-hole 6, and the top of the guide plate 8 extends to the top of the scale bar 5, and the pointer 7 is fixed to the top of the guide plate 8.

[0035] The effect achieved is that by rotating the adjusting bolt 20, the compression spring 28 is compressed, thereby changing the test upper limit of its maximum thrust. During the test, the output end of the electric actuator is engaged with the contact disk 9, and then the contact disk 9 is driven to slide to one side during the pushing process of the electric actuator. During the sliding process, the pointer 7 is driven to slide on the scale bar 5 through the guide plate 8. People judge the thrust size of the electric actuator by observing the position of the pointer 7 on the scale bar 5.

[0036] like Figure 3 、 Figure 5 and Figure 7 As shown, the feedback assembly includes multiple lifting rods 35, multiple reciprocating cavities 34 are equidistantly opened inside the conical block 17 along the circumferential direction, an adjustment cavity 30 is opened in the middle of the conical block 17, a connecting rod 33 is located inside the adjustment cavity 30, multiple lifting rods 35 are all located inside the reciprocating cavity 34, one end of multiple lifting rods 35 is correspondingly passed through the inside of the adjustment cavity 30, a conical ring 40 is fixed to the outer surface of the connecting rod 33, and one end of multiple lifting rods 35 located inside the adjustment cavity 30 is all in an arc shape, and the arc surface of the lifting rod 35 is aligned with the arc of the conical ring 40. On one side, the outer surfaces of the multiple lifting rods 35 are fixed with fixed plates 37, and the multiple fixed plates 37 are correspondingly located inside the reciprocating cavity 34. Lifting springs 36 are fixed between the bottoms of the multiple fixed plates 37 and the inner bottom surface of the reciprocating cavity 34. The other ends of the multiple lifting rods 35 slide through the outside of the conical block 17. The outer surface of the conical block 17 is provided with multiple recesses 32 at equal intervals along the circumferential direction. Spring picks 31 are fixed inside the multiple recesses 32, and the other ends of the multiple lifting rods 35 are in contact with the inner wall of the spring pick 31.

[0037] The effect achieved is that when the thrust of the electric actuator is large, the contact plate 9 will be pushed toward the side of the flange ring 2, and the connecting rod 33 will be driven to move during the pushing process. During the movement of the connecting rod 33, when the inclined surface on one side of the conical ring 40 contacts the arc surface at the bottom of the lifting rod 35, the lifting rod 35 will be lifted outward. In the process of the lifting rod 35 being lifted outward, the spring pick 31 will be lifted outward, thereby pushing the contact block 22 together with the movable rod 21 outward, and the alarm device and the limit assembly will be triggered in the process of pushing the movable rod 21 outward.

[0038] like Figure 3 and Figure 6 As shown, the alarm device includes an annular light cover 3, which is fixed on the outer surface of the fixed column 1, and three light strips 4 are fixed on the outer surface of the annular light cover 3 at equal intervals. The outer surface of the fixed column 1 is provided with multiple movable rods 21 that slide through the inside of the movable cavity 10 at equal intervals along the circumferential direction. The outer surface of the annular light cover 3 is provided with multiple interfaces 15 that penetrate to the inside at equal intervals along the circumferential direction, and multiple copper contacts 16 are fixed to the inner walls on both sides of the multiple interfaces 15. One end of the multiple movable rods 21 extends to the inside of the interface 15, and the other end of the multiple movable rods 21 is fixed with a contact block 22. The multiple contact blocks 22 are all located inside the movable cavity 10. Copper blocks 24 are fixed on both sides of the multiple movable rods 21, and the multiple copper blocks 24 are correspondingly fitted with the copper contacts 16. The top of the multiple movable rods 21 is provided with a wedge-shaped groove 23 near the side of the contact block 22.

[0039] The effect achieved is that the three light strips 4 on the alarm device are green, yellow and red respectively, where green represents normal thrust, the green light strip 4 is located at the bottom, and the copper contact 16 for controlling the green light strip 4 is close to the innermost side of the interface 15, the red light strip 4 is located at the top, and the copper contact 16 for controlling the red light strip 4 is close to the outermost side of the interface 15, the yellow light strip 4 is located between the green light strip 4 and the green light strip 4, and the copper contact 16 for controlling the yellow light strip 4 is in the middle of the interface 15, when the movable rod 21 is in the initial position, the copper block 24 on the movable rod 21 contacts the copper contact 16 of the green light strip 4, and when the thrust of the electric actuator does not reach the maximum thrust upper limit adjusted by the regulating component, as the electric actuator extends, the movable rod 21 will also extend outward accordingly, at the arc of the conical ring 40 and one end of the lifting rod 35. When the surfaces contact each other, the lifting rod 35 will be lifted outward, and the spring pick 31 will be lifted outward during the lifting process of the lifting rod 35, thereby pushing the contact block 22 together with the movable rod 21 outward until they come into contact with the copper contact 16 of the yellow light strip 4. When the thrust of the electric actuator reaches the maximum thrust upper limit adjusted by the adjustment component, the conical block 17 will be driven to slide to one side, so that the buffer spring 13 is stretched outward, and the thrust of the electric actuator is buffered by the elastic tension of the buffer spring 13. At the same time, when the conical block 17 slides to one side, the movable rod 21 will be further lifted outward, so that the copper block 24 on the movable rod 21 comes into contact with the copper contact 16 of the red light strip 4. After the red light strip 4 lights up, it can alert people and trigger the limit assembly to limit and fix the movable rod 21.

[0040] like Figure 3 、 Figure 4 and Figure 8 As shown, the limiting assembly includes multiple positioning rods 39, and the inner wall of the fixed column 1 is provided with multiple inner cavities 38. The multiple positioning rods 39 are all located inside the inner cavity 38. One end of the multiple positioning rods 39 slides through to fit the outer surface of the movable rod 21. The outer surface of one side of the multiple positioning rods 39 is inclined near the edge of one end. The outer surface of the multiple positioning rods 39 is fixed with a sliding ring 41, and a downward pressure spring 25 is fixed between the top of the multiple sliding rings 41 and the internal top surface of the inner cavity 38.

[0041] The effect achieved is that when the movable rod 21 extends outward to a large extent, the movable rod 21 can be positioned by the mutual engagement of the positioning rod 39 and the wedge-shaped groove 23, and then the mutual limitation of the contact block 22 and the conical block 17 can prevent the electric actuator from continuing to push forward.

[0042] Working principle: When using this device, the compression spring 28 is compressed by rotating the adjusting bolt 20, thereby changing the upper limit of the test of its maximum thrust. During the test, the output end of the electric actuator is engaged with the contact disc 9, and then the contact disc 9 is driven to slide to one side during the pushing process of the electric actuator. During the sliding process, the pointer 7 is driven to slide on the scale bar 5 through the guide plate 8. People judge the thrust of the electric actuator by observing the position of the pointer 7 on the scale bar 5. When the electric actuator is When the thrust is in a normal state, the contact plate 9 and the connecting rod 33 will be driven to slide to one side. At this time, the copper block 24 on the movable rod 21 will contact the copper contact 16 of the green light strip 4, and the green light strip 4 will light up. As the output end of the electric actuator extends outward, the connecting rod 33 will be driven to slide to one side. In the process of the connecting rod 33 sliding to one side, the conical ring 40 will be driven to move. When the conical ring 40 contacts the arc surface of one end of the lifting rod 35, the lifting rod 35 will be lifted outward. In the process of the lifting rod 35 lifting outward, the spring pick 31 will be pushed to the The outer side is lifted, thereby pushing the contact block 22 together with the movable rod 21 outward until they come into contact with the copper contact 16 of the yellow light strip 4. When the thrust of the electric actuator reaches the maximum thrust upper limit of the adjustment component, the conical block 17 is driven to slide to one side, so that the buffer spring 13 is stretched outward, and the thrust of the electric actuator is buffered by the elastic tension of the buffer spring 13. At the same time, when the conical block 17 slides to one side, the movable rod 21 is further lifted outward, so that the copper block 24 on the movable rod 21 is in contact with the red light strip 4. When the copper contact 16 of the movable rod 21 comes into contact, the red light strip 4 lights up to alert people. At the same time, when the wedge-shaped groove 23 slides to a position opposite to one end of the positioning rod 39 during the sliding process of the movable rod 21, the bottom of the positioning rod 39 is pressed into the interior of the wedge-shaped groove 23 under the elastic pressure of the downward spring 25, thereby positioning the movable rod 21 and preventing the movable rod 21 from continuing to extend outward. When the positioning rod 39 extends into the interior of the wedge-shaped groove 23, the inclined surface inside the wedge-shaped groove 23 and the inclined surface at the bottom end of the positioning rod 39 fit together, facilitating subsequent resetting. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or 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 scope of protection of the present invention.

Claims

1. A thrust detection device for an electric actuator, characterized in that: The invention comprises a fixed column (1), a compression spring (28), an adjusting bolt (20), a scale bar (5), a pointer (7), a guide plate (8) and a contact plate (9), wherein a buffer cavity (11) is provided inside the fixed column (1) near one side edge, an inner wall of one side of the buffer cavity (11) penetrates to the outside of the fixed column (1), a movable cavity (10) is provided on the other side of the fixed column (1), a movable column (12) is provided between the movable cavity (10) and the buffer cavity (11), a hexagonal cavity (26) is provided inside the movable column (12), an adjusting member is provided inside the hexagonal cavity (26), and an alarm device is provided on the outer surface of the fixed column (1); A conical block (17) is fixed to one end of the movable column (12), a feedback component is provided inside the conical block (17), a limit component is provided on the inner wall of the fixed column (1), a flange ring (2) is fixed to the outer surface of the fixed column (1) near one side edge, a buffer ring (19) is fixed to the outer surface of the movable column (12) near one side edge, a retaining ring (14) is fixed in the middle between the inner walls of the buffer cavity (11), a buffer spring (13) is fixed to one side of the buffer ring (19), and one end of the buffer spring (13) is fixed to one side inner wall of the buffer cavity (11); The alarm device comprises an annular light cover (3), the annular light cover (3) being fixed on the outer surface of a fixed column (1), three light strips (4) being fixed on the outer surface of the annular light cover (3) at equal intervals, a plurality of movable rods (21) slidingly penetrating into the interior of the movable cavity (10) being provided on the outer surface of the fixed column (1) at equal intervals along the circumferential direction, a plurality of interfaces (15) penetrating into the inner side of the annular light cover (3) being provided at equal intervals along the circumferential direction, and a plurality of copper contacts being fixed on the inner walls of both sides of the plurality of interfaces (15) (16), one end of each of the movable rods (21) extends to the inside of the interface (15), the other end of each of the movable rods (21) is fixed with a contact block (22), and each of the contact blocks (22) is located inside the movable cavity (10). Copper blocks (24) are fixed on both sides of each of the movable rods (21), and each of the copper blocks (24) is correspondingly fitted with the copper contact (16). A wedge-shaped groove (23) is provided on the top of each of the movable rods (21) near the contact block (22).

2. The electric actuator thrust detection device according to claim 1, characterized in that: The adjusting member includes a hexagonal base plate (29), the hexagonal base plate (29) is slidably connected to the inside of the hexagonal cavity (26), the compression spring (28) is fixed to one side of the hexagonal base plate (29), one end of the compression spring (28) is fixed with a hexagonal push plate (27), the hexagonal push plate (27) is slidably connected to the inside of the hexagonal cavity (26), the adjusting bolt (20) is rotatably connected to one end of the hexagonal push plate (27), the other end of the movable column (12) is provided with a cylindrical cavity (18), and one end of the adjusting bolt (20) is threadedly penetrated into the inside of the cylindrical cavity (18).

3. The electric actuator thrust detection device according to claim 2, characterized in that: A connecting rod (33) is fixed to the other side of the hexagonal base plate (29), and one end of the connecting rod (33) slides through one side of the conical block (17). The contact disk (9) is fixed to one end of the connecting rod (33), and the contact disk (9) is located inside the movable cavity (10). A scale bar (5) is fixed to the outer surface of the fixed column (1) near one side edge, and the through hole (6) is opened at the top of the scale bar (5) and penetrates into the inside of the movable cavity (10). The guide plate (8) is fixed to the outer surface of the contact disk (9), and the guide plate (8) is located inside the through hole (6), and the top of the guide plate (8) extends to the top of the scale bar (5). The pointer (7) is fixed to the top of the guide plate (8).

4. The electric actuator thrust detection device according to claim 3, characterized in that: The limiting assembly includes a plurality of positioning rods (39), the inner wall of the fixed column (1) is provided with a plurality of inner cavities (38), the plurality of positioning rods (39) are all located inside the inner cavities (38), one end of the plurality of positioning rods (39) slides through to fit the outer surface of the movable rod (21), the outer surface of one side of the plurality of positioning rods (39) is inclined near the edge of one end, the outer surface of the plurality of positioning rods (39) is fixed with a sliding ring (41), and a downward pressure spring (25) is fixed between the top of the plurality of sliding rings (41) and the inner top surface of the inner cavity (38).

5. The electric actuator thrust detection device according to claim 4, characterized in that: The feedback assembly includes a plurality of lifting rods (35), a plurality of reciprocating cavities (34) are equidistantly provided inside the conical block (17) along the circumferential direction, an adjusting cavity (30) is provided in the middle of the conical block (17), the connecting rod (33) is located inside the adjusting cavity (30), the plurality of lifting rods (35) are all located inside the reciprocating cavity (34), and one end of the plurality of lifting rods (35) is correspondingly passed through the inside of the adjusting cavity (30).

6. The electric actuator thrust detection device according to claim 5, characterized in that: A conical ring (40) is fixed to the outer surface of the connecting rod (33), and one end of each of the plurality of lifting rods (35) located inside the regulating cavity (30) is in the shape of an arc surface, and the arc surface of the lifting rod (35) is opposite to one side of the conical ring (40).

7. The electric actuator thrust detection device according to claim 6, characterized in that: A fixing plate (37) is fixed to the outer surface of each of the plurality of lifting rods (35), each of the plurality of fixing plates (37) is correspondingly located inside the reciprocating cavity (34), and a lifting spring (36) is fixed between the bottom of each of the plurality of fixing plates (37) and the inner bottom surface of the reciprocating cavity (34).

8. The electric actuator thrust detection device according to claim 7, characterized in that: The other ends of the plurality of lifting rods (35) slide through the outside of the conical block (17), and the outer surface of the conical block (17) is provided with a plurality of notches (32) equidistantly along the circumferential direction, and a spring pick (31) is fixed inside the plurality of notches (32), and the other ends of the plurality of lifting rods (35) are in contact with the inner wall of the spring pick (31).

Images