CN112326072A - Stress detection device - Google Patents
Stress detection device Download PDFInfo
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- CN112326072A CN112326072A CN202110000553.7A CN202110000553A CN112326072A CN 112326072 A CN112326072 A CN 112326072A CN 202110000553 A CN202110000553 A CN 202110000553A CN 112326072 A CN112326072 A CN 112326072A
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- micro motor
- adsorption mechanism
- foot rest
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a stress detection device, and aims to solve the technical problem that the existing stress detection device can be manually held to detect the stress of large buildings or structures such as bridges and gates in use. The adopted technical scheme is as follows: a stress-detecting device, comprising: the device comprises a main frame, a first foot rest and a second foot rest which are arranged at the upper end and the lower end of the main frame, a first micro motor for driving the main frame to rotate relative to the first foot rest, a second micro motor for driving the main frame to rotate relative to the second foot rest, a detection mechanism arranged on the main frame, a first adsorption mechanism arranged on the first foot rest, a third micro motor for driving the first foot rest and the first adsorption mechanism to rotate relative to each other, a second adsorption mechanism arranged on the second foot rest, and a fourth micro motor for driving the second foot rest and the second adsorption mechanism to rotate relative to each other; and the rotating shafts of the first micro motor, the second micro motor, the third micro motor and the fourth micro motor are parallel to each other. The invention can reduce labor intensity and improve safety.
Description
Technical Field
The invention relates to the technical field of stress detection equipment, in particular to a stress detection device.
Background
When an object is deformed due to external forces such as stress, humidity, and temperature field change, an internal force acting between each part in the object is generated, and the internal force per unit area is referred to as stress. Stress may cause cracking, warping or deformation of the object and further induce safety accidents, so that stress detection of the object is necessary.
For large-scale steel structure bridges, gates, steel structure roofs and other truss structures, stress detection is carried out on assembled structural members in the production process, and stress detection is carried out after assembly and in the using process, so that safety and reliability are ensured, and safety accidents are avoided. Most of the existing stress detection devices cannot walk along the detection object, and are often required to be manually held, climb or dive to detect the stress, so that the labor intensity is high, and certain dangerousness exists.
Disclosure of Invention
The invention aims to provide a stress detection device which can walk along the surface of a detected object to detect stress, reduce labor intensity and improve safety.
In order to achieve the purpose, the invention adopts the technical scheme that:
a stress-detecting device, comprising: the device comprises a main frame, a first foot rest arranged at the upper end of the main frame, a first micro motor for driving the main frame to rotate relative to the first foot rest, a second foot rest arranged at the lower end of the main frame, a second micro motor for driving the main frame to rotate relative to the second foot rest, a detection mechanism arranged on the main frame, a first adsorption mechanism arranged on the first foot rest, a third micro motor for driving the first foot rest to rotate relative to the first adsorption mechanism, a second adsorption mechanism arranged on the second foot rest, and a fourth micro motor for driving the second foot rest to rotate relative to the second adsorption mechanism; and the rotating shafts of the first micro motor, the second micro motor, the third micro motor and the fourth micro motor are parallel to each other and are parallel to the adsorption surface of the detection object.
Optionally, the left side of the main frame is connected with the end of the rotating part and is adapted to drive the fifth micro motor to rotate relatively; the other end of the rotating part is connected with the third tripod and is matched with the sixth micro motor for driving the rotating part and the third tripod to rotate relatively; the third tripod is provided with a third adsorption mechanism and is matched with a seventh micro motor for driving the third adsorption mechanism and the seventh micro motor to rotate relatively; the rotating shafts of the fifth micro motor and the sixth micro motor are vertical to the adsorption surface of the detected object; and a rotating shaft of the seventh micro motor is parallel to the first micro motor.
Optionally, the first adsorption mechanism comprises an air chamber and a suction nozzle communicated with the air chamber; the air chamber is communicated with an inlet of the micro pump through a vacuum pumping pipe; the vacuum pumping pipe is provided with an air return branch pipe, and the air return branch pipe is provided with an air return valve; and a vacuum pumping valve is arranged at one section of the vacuum pumping pipe between the air return branch pipe and the micro pump.
Optionally, the first adsorption mechanism, the second adsorption mechanism and the third adsorption mechanism have the same structure, and the air chambers of the first adsorption mechanism, the second adsorption mechanism and the third adsorption mechanism are respectively communicated with the same micropump through a vacuum pumping tube.
Optionally, the suction nozzle includes a horn portion, an annular portion communicated with an open end of the horn portion, and a tube portion communicated with a constricted end of the horn portion; the horn part, the annular part and the pipe part are of an integrated structure; the annular part is provided with an elastic layer on one surface corresponding to the detection object, and the elastic layer is connected with the annular part into a whole through gluing.
Optionally, the pipe part of the suction nozzle is communicated with the air chamber through a telescopic pipe; the periphery of the extension tube is sleeved with a spring, the outer wall of the tube part is provided with a limiting bulge, and the limiting bulge is matched with the air chamber to limit the spring; the air chamber is provided with a guide rod extending towards the limiting protrusion, and the limiting protrusion is provided with a guide through hole matched with the guide rod.
Optionally, the detection mechanism includes a probe for detecting stress of the object to be detected, a micro cylinder for driving the probe to move, an eighth micro motor for driving the micro cylinder to rotate, a first lead screw for driving the eighth micro motor to move in the up-down direction, and a second lead screw for driving the first lead screw to move in the left-right direction; the rotating shaft of the eighth micro motor is parallel to the adsorption surface of the detected object and is vertical to the rotating shaft of the first micro motor; the telescopic direction of the micro cylinder is perpendicular to the rotating shaft of the eighth micro motor.
Optionally, the side of the air chamber provided with the suction nozzle and the end of the micro cylinder provided with the probe are both provided with a camera and a light source.
Optionally, the main frame, the first foot rest, the second foot rest and the third tripod are respectively provided with an air bag communicated with each other, and the air bag is communicated with the gas production bottle; the gas generating bottle is provided with a sealing film, and gas generating medicine is filled in the gas generating bottle; and an electric heating wire for igniting the gas production medicine and fusing the sealing film is arranged in the gas production bottle.
Optionally, the air bag is respectively communicated with the gas generating bottle and the micro pump through a three-way pipe, and an air extracting valve is arranged at one end of the three-way pipe corresponding to the micro pump; the three-way pipe is correspondingly provided with an annular ridge surrounding the periphery corresponding to one end of the gas production bottle and the bottle opening of the gas production bottle and is fixedly connected through a screw penetrating through the annular ridge; the sealing film is made of thermoplastic elastomer and clamped between the two annular ribs.
The working principle of the invention is as follows: the first adsorption mechanism and the second adsorption mechanism are alternately adsorbed on the surface of the detection object. When the first adsorption mechanism is positioned above and adsorbed on the surface of a detection object, the first micro motor drives the main frame to turn over 180 degrees upwards, the second micro motor drives the second foot rest to turn over 180 degrees in the same direction, and then the second adsorption mechanism can be turned over to the position above the first adsorption mechanism. When the second adsorption mechanism is positioned above and adsorbed on the surface of the detection object, the second micro motor drives the main frame to turn upwards by 180 degrees, the first micro motor drives the first foot frame to turn 180 degrees in the same direction, and then the first adsorption mechanism can be turned over above the second adsorption mechanism; the stress detection device can move upwards along the surface of the object to be detected by repeating the above steps. Conversely, the stress detection device can also move upwards along the surface of the object to be detected. In a similar way, the stress detection device can also move towards other directions along the surface of the detection object by adjusting the orientation of the initial placing position. The stress detection device can detect the stress of the surface of a detected object through the detection mechanism in the moving process. In addition, by adjusting the rotation angle of the main frame, the first foot rest, the second foot rest, the first adsorption mechanism or the second adsorption mechanism, the stress detection device can be switched from being adsorbed on the side surface of the object to be detected to being adsorbed on the bottom surface or the upper surface of the object to be detected, can also be switched from being adsorbed on the bottom surface of the object to being adsorbed on the side surface or the upper surface of the object to be detected, and can also be switched from being adsorbed on the upper surface of the object to being adsorbed on the side surface or the bottom.
Therefore, the beneficial effects of the invention are as follows: the device can move along the surfaces of detection objects such as gates, trusses and the like, so that stress detection is carried out on the detection objects, the labor intensity of detection personnel is reduced, and the safety is improved; and can cross the protrusion on the surface of the detection object without obstacles, and has better applicability.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the present invention switching between adsorption on the top surface of a test article and adsorption on the bottom surface of a test article;
FIG. 3 is a schematic view of the present invention switching between adsorption on the side of the test object and adsorption on the bottom of the test object;
FIG. 4 is a schematic view of the present invention switching between adsorption on the top surface of the assay and adsorption on the side of the assay;
FIG. 5 is a schematic view of the main frame connecting with the first, second and third stands;
FIG. 6 is a schematic view of the present invention showing the adjustment of the direction of travel by the third tripod and the third adsorption mechanism;
FIG. 7 is a schematic view of the rotational member connecting the main frame to a third tripod;
FIG. 8 is a schematic structural view of a first adsorption mechanism;
FIG. 9 is a schematic structural view of a third adsorption mechanism;
FIG. 10 is a schematic view of the communication of the gas chamber with the micro-pump;
FIG. 11 is a schematic view of the nozzle and air chamber assembly;
FIG. 12 is a schematic view of the mainframe setting detection mechanism;
FIG. 13 is an enlarged view of portion A of FIG. 1;
reference numerals: 1. a main frame; 2. a first leg frame; 3. a first micro motor; 4. a second leg frame; 5. a second micro motor; 6. a first adsorption mechanism; 7. a third micro motor; 8. a second adsorption mechanism; 9. a fourth micro motor; 10. a rotating member; 11. a fifth micro motor; 12. a third tripod; 13. a sixth micro motor; 14. a third adsorption mechanism; 15. a seventh micro motor; 16. an air chamber; 17. a suction nozzle; 18. vacuumizing a tube; 19. a micro-pump; 20. a return air branch pipe; 21. an air return valve; 22. a vacuum pumping valve; 23. a horn section; 24. an annular portion; 25. a tube portion; 26. an elastic layer; 27. a telescopic pipe; 28. a spring; 29. a limiting bulge; 30. a guide bar; 31. a probe; 32. a micro cylinder; 33. an eighth micro motor; 34. a first lead screw; 35. a second lead screw; 36. a camera; 37. a light source; 38. an air bag; 39. a gas generating bottle; 40. sealing films; 41. a three-way pipe; 42. an air extraction valve; 43. and (4) an annular edge.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in fig. 1 to facilitate the description of the invention and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Embodiments of the present invention will be described in detail below with reference to fig. 1 to 13.
As shown in fig. 1 to 5, an embodiment of the invention provides a stress detection device, which includes a main frame 1 and a first foot frame 2 mounted on an upper end of the main frame 1; and a first micro motor 3 driving the main frame 1 and the first foot frame 2 to rotate relatively. It should be understood that the housing of the first micro-motor 3 can be fixedly connected to the main frame 1, and the rotating shaft thereof is fixedly connected to the first stand 2; or the shell of the first micro motor 3 can be fixedly connected with the first foot rest 2, so that the rotating shaft is fixedly connected with the main frame 1.
The second foot rest 4 is arranged at the lower end of the main frame 1; and a second micro motor 5 adapted to drive the main frame 1 and the second foot rest 4 to rotate relatively. It should be understood that the housing of the second micro-motor 5 can be fixedly connected to the main frame 1, and the rotating shaft thereof is fixedly connected to the second foot rest 4; or the shell of the second micro motor 5 is fixedly connected with the second foot rest 4, so that the rotating shaft is fixedly connected with the main frame 1.
The device also comprises a detection mechanism arranged on the main frame 1; it should be understood that the detection mechanism is provided with a probe 31 for detecting the stress of the test object. The probe 31 may be provided in plural numbers facing forward and backward; only one traveling mechanism may be provided and adapted to drive the probe 31 to move and rotate.
The device also comprises a first adsorption mechanism 6 arranged on the first foot rest 2; a third micro motor 7 which is adapted to drive the first foot frame 2 and the first adsorption mechanism 6 to rotate relatively; it should be understood that the housing of the third micro-motor 7 can be fixedly connected to the first stand 2, and the rotating shaft thereof is fixedly connected to the first adsorption mechanism 6; the housing of the third micro-motor 7 can also be fixed to the first adsorption mechanism 6, so that the rotation shaft thereof is fixed to the first stand 2. The third micro motor 7 is used for driving the first adsorption mechanism 6 to rotate or separate from the adsorption surface of the detected object.
The device also comprises a second adsorption mechanism 8 arranged on the second foot rest 4; it should be understood that the first adsorption mechanism 6 and the second adsorption mechanism 8 can be adsorbed on the surface of the object to be detected by a suction nozzle 17 or a suction cup communicating with a micro pump 19; when the object to be detected can be magnetically attracted, the first adsorption mechanism 6 and the second adsorption mechanism 8 can also be adsorbed on the surface of the object to be detected through the electromagnet.
The device also comprises a fourth micro motor 9 for driving the second foot rest 4 and the second adsorption mechanism 8 to rotate relatively; it should be understood that the housing of the fourth micro-motor 9 can be fixedly connected to the second foot rest 4, and the rotating shaft thereof is fixedly connected to the second adsorption mechanism 8; the housing of the fourth micro-motor 9 can also be fixedly connected to the second adsorption mechanism 8, so that the rotation shaft thereof is fixedly connected with the second foot rest 4. The fourth micro motor 9 is used for driving the second adsorption mechanism 8 to rotate towards or away from the surface of the detected object.
The rotating shafts of the first micro motor 3, the second micro motor 5, the third micro motor 7 and the fourth micro motor 9 are parallel to each other and parallel to the adsorption surface of the detection object. It should be understood that when the stroke is short, the first micro motor 3, the second micro motor 5, the third micro motor 7, the fourth micro motor 9, the detection mechanism, the first adsorption mechanism 6, the second adsorption mechanism 8 and other components can be powered by the pulling wires; preferably, the power supply for each component can be realized by loading a storage battery. When power is supplied in a wire pulling mode, instructions can be sent to each component through wired communication, and information can be received; when the power is supplied in a manner of loading the storage battery, a wireless communication module can be arranged on the stress detection device, and the stress detection device sends instructions to each component in a wireless communication manner and receives information.
In the following, the first adsorption means 6 and the second adsorption means 8 are alternately adsorbed on the surface of the analyte according to the embodiment of the present invention. When the first adsorption mechanism 6 is positioned above and adsorbed on the surface of a detected object, the first micro motor 3 drives the main frame 1 to turn 180 degrees upwards, the second micro motor 5 drives the second foot rest 4 to turn 180 degrees in the same direction, and then the second adsorption mechanism 8 can be turned over to the position above the first adsorption mechanism 6. When the second adsorption mechanism 8 is positioned above and adsorbed on the surface of a detected object, the second micro motor 5 drives the main frame 1 to turn 180 degrees upwards, the first micro motor 3 drives the first foot rest 2 to turn 180 degrees in the same direction, and then the first adsorption mechanism 6 can be turned over above the second adsorption mechanism 8; the stress detection device can move upwards along the surface of the object to be detected by repeating the above steps. Conversely, the stress detection device can also move upwards along the surface of the object to be detected. In a similar way, the stress detection device can also move towards other directions along the surface of the detection object by adjusting the orientation of the initial placing position. The stress detection device can detect the stress of the surface of a detected object through the detection mechanism in the moving process. In addition, by adjusting the rotation angle of the main frame 1, the first foot rest 2, the second foot rest 4, the first adsorption mechanism 6 or the second adsorption mechanism 8, the stress detection device can be switched from being adsorbed on the side surface of the object to be detected to being adsorbed on the bottom surface or the upper surface of the object to be detected, can also be switched from being adsorbed on the bottom surface of the object to being adsorbed on the side surface or the upper surface of the object to be detected, and can also be switched from being adsorbed on the upper surface of the object to be detected to being adsorbed on the side surface. The invention can move along the surface of the detection objects such as gates, trusses and the like, thereby carrying out stress detection on the detection objects; and can cross the protrusion on the surface of the detection object without obstacles, and has better applicability.
As shown in fig. 5 to 7, in one embodiment of the present application, the left side of the main frame 1 is connected to the end of the rotating member 10, and is adapted to drive a fifth micro motor 11 for rotating the two members; the other end of the rotating part 10 is connected with a third tripod 12 and is adapted to drive a sixth micro motor 13 which rotates oppositely; the third tripod 12 is provided with a third adsorption mechanism 14 and is adapted to drive a seventh micro motor 15 to rotate relatively; the rotating shafts of the fifth micro motor 11 and the sixth micro motor 13 are vertical to the adsorption surface of the detected object; the rotating shaft of the seventh micro motor 15 is parallel to the first micro motor 3. It should be understood that the third adsorption mechanism 14 can be adsorbed on the surface of the object to be detected by a suction nozzle 17 or a suction cup communicating with the micro pump 19; when the object to be detected can be magnetically attracted, the third adsorption mechanism 14 can also be adsorbed on the surface of the object to be detected through the electromagnet. The present invention is generally moved by the cooperation of the first adsorption mechanism 6 and the second adsorption mechanism 8, and the third adsorption mechanism 14 is normally in a closed state. When the moving direction or the traveling route of the stress detection device needs to be adjusted; firstly, the rotating part 10 is driven to rotate relative to the main frame 1 through the fifth micro motor 11, and the included angle between the rotating part 10 and the main frame 1 is adjusted; the sixth micro motor 13 drives the third tripod 12 to rotate relative to the rotating part 10, and the included angle between the third tripod 12 and the rotating part 10 is adjusted; then, the seventh micro motor 15 drives the third adsorption mechanism 14 to rotate, so that the third adsorption mechanism 14 faces the detected object and is adsorbed on the surface of the detected object; then, the first adsorption mechanism 6 and the second adsorption mechanism 8 are released from the surface of the detected object; the main frame 1 is driven to rotate relative to the rotating part 10 through a fifth micro motor 11, and the rotating part 10 is driven to rotate relative to a third tripod 12 through a sixth micro motor 13; and finally, enabling the first adsorption mechanism 6 or the second adsorption mechanism 8 to be adsorbed on the surface of the detected object again, and enabling the third adsorption mechanism 14 to be released from the surface of the detected object. In this way, the moving direction and the traveling path of the first adsorption mechanism 6 and the second adsorption mechanism 8 can be adjusted.
As shown in FIGS. 8-10, in one embodiment of the present application, the first adsorption mechanism 6 comprises an air chamber 16 and a suction nozzle 17 communicated with the air chamber 16; the air chamber 16 is communicated with an inlet of a micro pump 19 through an evacuation tube 18; the vacuum-pumping pipe 18 is provided with an air return branch pipe 20, and the air return branch pipe 20 is provided with an air return valve 21; the evacuation tube 18 is provided with an evacuation valve 22 in a section between the return manifold 20 and the micro-pump 19. It should be understood that when the stress detection apparatus is used for detecting an onshore test object such as a truss, the micropump 19 may be a conventional vacuum pump; when the stress detection device is used for underwater operation, the micro pump 19 can be a micro vacuum water pump. The air return valve 21 is closed, the vacuumizing valve 22 is opened, and the micro pump 19 can vacuumize the suction nozzle 17 attached to the surface of the detected object, so that the suction nozzle 17 is adsorbed on the surface of the detected object; when the vacuum-pumping valve 22 is closed and the air return valve 21 is opened, the outside air or water flows through the air return branch pipe 20, the vacuum-pumping pipe 18 and the air chamber 16 and then flows into the suction nozzle 17 again, so that the suction nozzle 17 is released from the surface of the object to be detected. The air return valve 21 and the vacuum pumping valve 22 are usually solenoid valves, and may be pneumatic valves. The evacuation tube 18 has a flexible or bendable section, which may be formed by a bellows 27, a bellows or a hose.
Furthermore, the first adsorption mechanism 6, the second adsorption mechanism 8 and the third adsorption mechanism 14 have the same structure, and the air chambers 16 of the three adsorption mechanisms are respectively communicated with the same micro pump 19 through a vacuum pumping tube 18. It should be understood that an inlet tube having a plurality of branch tubes may be provided at the inlet of the micro-pump 19.
As shown in fig. 11, in one embodiment of the present application, the suction nozzle 17 includes a trumpet portion 23, an annular portion 24 communicating with an open end of the trumpet portion 23, and a tube portion 25 communicating with a constricted end of the trumpet portion 23; the horn part 23, the annular part 24 and the pipe part 25 are of an integrated structure; the ring portion 24 is provided with an elastic layer 26 on a side corresponding to the object to be detected, and the elastic layer 26 is integrally connected to the ring portion 24 by gluing. It should be understood that the trumpet portion 23, the annular portion 24 and the pipe portion 25 are made of hard materials, the trumpet portion 23 can press the elastic layer 26 to prevent the elastic layer 26 from tilting, and the elastic layer 26 is ensured to be attached to the surface of the object to be detected, so that the length of a sealing path is increased, and leakage of the suction nozzle 17 is avoided.
Further, the pipe portion 25 of the suction nozzle 17 communicates with the air chamber 16 through a bellows 27; a spring 28 is sleeved on the periphery of the extension tube 27, a limiting bulge 29 is arranged on the outer wall of the tube part 25, and the limiting bulge 29 is matched with the air chamber 16 to limit the spring 28; the air chamber 16 is provided with a guide rod 30 extending towards a limiting protrusion 29, and the limiting protrusion 29 is provided with a guide through hole matched with the guide rod 30. It should be understood that the air chamber 16 of the first adsorption mechanism 6, the air chamber 16 of the second adsorption mechanism 8, and the air chamber 16 of the third adsorption mechanism 14 are respectively communicated with a plurality of suction nozzles 17. The suction nozzles 17 are communicated with the corresponding air chambers 16 through the extension tubes 27, and are matched with springs 28 which support the suction nozzles 17 and guide rods 30 which limit the suction nozzles 17, and the distances between each suction nozzle 17 and the corresponding air chamber 16 can be different, so that the suction nozzles 17 are adsorbed on the surface of an uneven detection object.
As shown in fig. 12, in one embodiment of the present application, the detecting mechanism includes a probe 31 for detecting stress of an object to be detected, a micro cylinder 32 for driving the probe 31 to move, an eighth micro motor 33 for driving the micro cylinder 32 to rotate, a first lead screw 34 for driving the eighth micro motor 33 to move in an up-down direction, and a second lead screw 35 for driving the first lead screw 34 to move in a left-right direction; the rotating shaft of the eighth micro motor 33 is parallel to the adsorption surface of the detected object and is perpendicular to the rotating shaft of the first micro motor 3; the expansion direction of the micro cylinder 32 is perpendicular to the rotating shaft of the eighth micro motor 33. It should be understood that the probe 31 may be a non-contact stress detecting probe 31, and a contact stress detecting probe 31 may also be used.
Further, a camera 36 and a light source 37 are arranged on one side of the air chamber 16 provided with the suction nozzle 17 and one end of the micro cylinder 32 provided with the probe 31. It should be understood that by providing the camera 36 and the light source 37, the surface of the object under test can be better observed and the stress detection device can be better controlled. The light source 37 may be an artificial light source 37 such as a small bulb, a searchlight, an LED lamp, or the like.
As shown in fig. 1 and 13, in one embodiment provided by the present application, the main frame 1, the first foot rest 2, the second foot rest 4 and the third foot rest 12 are respectively provided with an air bag 38 which is communicated, and the air bag 38 is communicated with an air generating bottle 39; the gas generating bottle 39 is provided with a sealing film 40, and gas generating medicine is filled in the gas generating bottle; an electric heating wire for igniting the gas generating agent and fusing the sealing film 40 is arranged in the gas generating bottle 39. It should be appreciated that the heating wire may be energized to ignite the gas generant composition to produce gas and melt the sealing film 40 to produce a void, thereby inflating the airbag 38; the air bags 38 are distributed along the outer edge of the whole stress detection device; when the stress detection device falls from high altitude accidentally, the device can play a role in buffering and protecting; when the stress detection device falls off accidentally in underwater operation, buoyancy can be generated, so that the stress detection device floats on the water surface, and fishing is facilitated. In addition, the gas generating bottle 39 is sealed by the sealing film 40 and is fused by the electric heating wire, so that an electromagnetic valve or a pneumatic valve is not required to be additionally arranged to control the opening and closing of the gas generating bottle 39, and the weight of the whole device is reduced.
Further, the air bag 38 is respectively communicated with the gas generating bottle 39 and the inlet of the micro pump 19 through a three-way pipe 41, and one end of the three-way pipe 41 corresponding to the micro pump 19 is provided with an air extracting valve 42; the three-way pipe 41 is correspondingly provided with an annular ridge 43 surrounding the periphery corresponding to one end of the gas production bottle 39 and the bottle mouth of the gas production bottle 39 and is fixedly connected through a screw penetrating through the annular ridge 43; the sealing film 40 is made of a thermoplastic elastomer and is clamped between two annular ribs 43. It should be understood that the air bags 38 are connected to each other and to the same port of the tee 41, and the remaining two ports of the tee 41 are connected to the micro pump 19 and the gas generating bottle 39, respectively. The heating wire fuses only the portion of the sealing film 40 located on the inner periphery of the opening of the gas generating bottle 39. The gas generating bottle 39 is detachably connected with the three-way pipe 41, the gas generating medicine and the sealing film 40 can be repeatedly used through replacement, and the clamping is convenient and fast. After the replacement of the gas generating agent and the sealing film 40 is completed, the air extracting valve 42 is opened, the air bag 38 is vacuumized through the micro pump 19, and the air extracting valve 42 is closed after the vacuumization is completed; thus, the air bag 38 can be kept in a maximally deflated state, and the occupied space can be reduced, thereby facilitating the stress detection device to smoothly and conveniently perform the stress detection operation. In addition, a plurality of tying ropes or tying belts for limiting and fixing the air bag 38 can be arranged along the length direction of the air bag 38.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that changes or modifications may be made to these embodiments without departing from the principles and spirit of the invention, and that such changes and modifications are within the scope of the invention.
Claims (10)
1. A stress detecting device, comprising:
a main frame (1); and
a first foot rest (2) arranged at the upper end of the main frame (1); and
a first micro motor (3) which drives the main frame (1) and the first foot rest (2) to rotate relatively; and
a second foot rest (4) arranged at the lower end of the main frame (1); and
a second micro motor (5) which drives the main frame (1) and the second foot rest (4) to rotate relatively; and
a detection mechanism mounted on the main frame (1); and
a first adsorption mechanism (6) mounted on the first foot rest (2); and
a third micro motor (7) which drives the first foot rest (2) and the first adsorption mechanism (6) to rotate relatively; and
a second adsorption mechanism (8) mounted on the second foot rest (4); and
a fourth micro motor (9) for driving the second foot rest (4) and the second adsorption mechanism (8) to rotate relatively;
the rotating shafts of the first micro motor (3), the second micro motor (5), the third micro motor (7) and the fourth micro motor (9) are parallel to each other and are parallel to the adsorption surface of the detection object.
2. The stress detecting apparatus according to claim 1, wherein: the left side of the main frame (1) is connected with the end part of the rotating part (10) and is matched with a fifth micro motor (11) which drives the rotating part and the rotating part to rotate relatively; the other end of the rotating part (10) is connected with a third tripod (12) and is matched with a sixth micro motor (13) which drives the rotating part and the third tripod to rotate relatively; the third tripod (12) is provided with a third adsorption mechanism (14) and is matched with a seventh micro motor (15) for driving the third adsorption mechanism and the seventh micro motor to rotate relatively; the rotating shafts of the fifth micro motor (11) and the sixth micro motor (13) are vertical to the adsorption surface of the detected object; and the rotating shaft of the seventh micro motor (15) is parallel to the first micro motor (3).
3. The stress detection apparatus according to claim 2, wherein the first adsorption mechanism (6) comprises:
an air chamber (16); and
a suction nozzle (17) communicated with the air chamber (16);
wherein the air chamber (16) is communicated with an inlet of a micro pump (19) through an evacuation tube (18);
the vacuum-pumping pipe (18) is provided with an air return branch pipe (20), and the air return branch pipe (20) is provided with an air return valve (21);
the vacuum-pumping pipe (18) is provided with a vacuum-pumping valve (22) at a section between the air return branch pipe (20) and the micro pump (19).
4. The stress detecting apparatus according to claim 3, wherein: the first adsorption mechanism (6), the second adsorption mechanism (8) and the third adsorption mechanism (14) are identical in structure, and air chambers (16) of the first adsorption mechanism, the second adsorption mechanism and the third adsorption mechanism are respectively communicated with the same micropump (19) through a vacuum pumping pipe (18).
5. Stress-detecting device according to claim 3 or 4, characterized in that the suction nozzle (17) comprises:
a horn section (23); and
an annular portion (24) communicating with the open end of the horn portion (23); and
a tube part (25) communicating with the convergent end of the horn part (23);
the horn part (23), the annular part (24) and the pipe part (25) are of an integrated structure;
the annular part (24) is provided with an elastic layer (26) on one surface corresponding to the detection object, and the elastic layer (26) is connected with the annular part (24) into a whole through gluing.
6. The stress detecting apparatus according to claim 5, wherein: the pipe part (25) of the suction nozzle (17) is communicated with the air chamber (16) through a telescopic pipe (27); a spring (28) is sleeved on the periphery of the telescopic pipe (27), a limiting protrusion (29) is arranged on the outer wall of the pipe part (25), and the limiting protrusion (29) is matched with the air chamber (16) to limit the spring (28); the air chamber (16) is provided with a guide rod (30) extending towards the limiting protrusion (29), and the limiting protrusion (29) is provided with a guide through hole matched with the guide rod (30).
7. The stress detecting apparatus according to any one of claims 3 or 4, wherein the detecting mechanism comprises:
a probe (31) for detecting the stress of the object; and
a micro cylinder (32) for driving the probe (31) to move; and
an eighth micro motor (33) for driving the micro cylinder (32) to rotate; and
a first lead screw (34) for driving the eighth micro motor (33) to move in the vertical direction; and
a second lead screw (35) that drives the first lead screw (34) to move in the left-right direction;
wherein, the rotating shaft of the eighth micro motor (33) is parallel to the adsorption surface of the detected object and is vertical to the rotating shaft of the first micro motor (3); the telescopic direction of the micro cylinder (32) is perpendicular to the rotating shaft of the eighth micro motor (33).
8. The stress detecting apparatus according to claim 7, wherein: the side of the air chamber (16) provided with the suction nozzle (17) and the end of the micro cylinder (32) provided with the probe (31) are both provided with a camera (36) and a light source (37).
9. The stress detecting apparatus according to any one of claims 1 to 4, wherein: the main frame (1), the first foot rest (2), the second foot rest (4) and the third foot rest (12) are respectively provided with an air bag (38) which is communicated with each other, and the air bag (38) is communicated with an air generating bottle (39); the gas generating bottle (39) is provided with a sealing film (40), and the gas generating bottle is filled with a gas generating medicine; an electric heating wire used for igniting gas production medicine and fusing the sealing film (40) is arranged in the gas production bottle (39).
10. The stress detecting apparatus according to claim 9, wherein: the air bag (38) is respectively communicated with the gas generating bottle (39) and the micro pump (19) through a three-way pipe (41), and one end of the three-way pipe (41) corresponding to the micro pump (19) is provided with an air suction valve (42); the three-way pipe (41) is correspondingly provided with an annular ridge (43) surrounding the periphery corresponding to one end of the gas production bottle (39) and the opening of the gas production bottle (39), and is fixedly connected through a screw penetrating through the annular ridge (43); the sealing film (40) is made of a thermoplastic elastomer and is clamped between two annular ribs (43).
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Denomination of invention: A stress detection device Effective date of registration: 20230705 Granted publication date: 20210319 Pledgee: Bank of Chengdu science and technology branch of Limited by Share Ltd. Pledgor: CHENGDU VEESUN SCIENCE & TECH DEV. CO.,LTD. Registration number: Y2023980047522 |
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