CN111366272B - Method for detecting stress of building steel structure - Google Patents
Method for detecting stress of building steel structure Download PDFInfo
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- CN111366272B CN111366272B CN202010238397.3A CN202010238397A CN111366272B CN 111366272 B CN111366272 B CN 111366272B CN 202010238397 A CN202010238397 A CN 202010238397A CN 111366272 B CN111366272 B CN 111366272B
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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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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
本发明公开了一种建筑钢结构应力检测方法，所述检测方法包括以下步骤：将需要检测的建筑钢搬运到检测装置处，通过控制柜控制第四驱动电机工作，第四驱动电机工作带动第三主动带轮转动，第三主动带轮通过第三传动皮带带动第三从动带轮转动，第三从动带轮带动转动轴正向转动，转动轴带动帘布收卷使外防护机壳上设置的入料口开启，将待检测结构应力的建筑钢放置在检测台上，调节检测台上放置的L型限位块对建筑钢四周进行固定，并通过控制柜控制电磁铁通电对L型限位块进行吸附固定，本发明通过丝杆传动原理进行水平和竖直方向的移动，方便对建筑钢进行不同位置的检测，从而提高检测效果，并且方便对不同大小的建筑钢进行很好的检测。
The invention discloses a stress detection method for a building steel structure. The detection method comprises the following steps: transporting building steel to be detected to a detection device, controlling a fourth drive motor to work through a control cabinet, and the fourth drive motor works to drive a fourth drive motor to work. The three driving pulleys rotate, the third driving pulley drives the third driven pulley to rotate through the third transmission belt, the third driven pulley drives the rotating shaft to rotate in the forward direction, and the rotating shaft drives the curtain cloth to wind up the outer protective casing. The set feeding port is opened, the building steel to be tested for structural stress is placed on the testing table, the L-shaped limit block placed on the testing table is adjusted to fix the surrounding of the building steel, and the electromagnet is energized through the control cabinet to energize the L-shaped steel. The limit block is adsorbed and fixed, and the invention moves horizontally and vertically through the principle of screw drive, which facilitates the detection of different positions of the construction steel, thereby improving the detection effect, and is convenient for the construction steel of different sizes. detection.
Description
Technical Field
The invention relates to the technical field of steel structure stress detection, in particular to a method for detecting the stress of a building steel structure.
Background
Stress detection generally refers to a technical means of detecting stress change of a stressed steel structure by using a detection instrument in the construction process of a building structure, such as the processes of steel structure installation, uninstallation, transformation, reinforcement, concrete pouring and the like, so that technicians can compare the stress change with a control value to ensure the safety of construction, and the stress detection can also be used for checking whether the construction process is reasonable or not.
The existing steel structure stress detection device is poor in detection effect, detection is inconvenient for different positions on the building steel with different specifications and sizes, the fixing effect of the building steel with different specifications is poor, and errors are easily caused in the detection process.
Disclosure of Invention
The invention aims to provide a method for detecting the stress of a building steel structure, wherein an electromagnet is arranged to adsorb or loosen an L-shaped limiting block, so that the position of the L-shaped limiting block can be conveniently adjusted to fix the building steel, meanwhile, the building steel with different sizes can be conveniently fixed, a stress detector and a visual detector can move in the horizontal and vertical directions through a screw rod transmission principle, the building steel can be conveniently detected at different positions, the detection effect is improved, and the building steel with different sizes can be conveniently and well detected.
The purpose of the invention can be realized by the following technical scheme:
a method for detecting stress of a building steel structure comprises the following steps:
the method comprises the following steps: carrying the building steel to be detected to a detection device, controlling a fourth driving motor to work through a control cabinet, driving a third driving belt pulley to rotate by the work of the fourth driving motor, driving a third driven belt pulley to rotate through a third driving belt, driving a rotating shaft to rotate in a forward direction by the third driven belt pulley, driving a curtain cloth to be wound by the rotating shaft to open a feeding port arranged on an outer protective shell, placing the building steel to be detected for structural stress on a detection table, adjusting an L-shaped limiting block arranged on the detection table to fix the periphery of the building steel, and controlling electromagnet to be electrified through the control cabinet to adsorb and fix the L-shaped limiting block;
step two: after the building steel is fixed on the detection table, a fourth driving motor works to drive the rotating shaft to rotate reversely, the rotating shaft drives the curtain cloth to unreel, so that a feeding hole formed in the outer protective casing is closed, the control cabinet controls a first driving motor to work to drive a first lead screw to rotate, a first connecting seat and a first sliding plate are driven to reciprocate along a first sliding rail through a lead screw transmission principle, a second driving motor works to drive a first driving belt wheel to rotate, the first driving belt wheel drives a first driven belt wheel to rotate through a first transmission belt, the first driven belt wheel drives a second lead screw to rotate, a second connecting seat and a second sliding plate are driven to reciprocate along a second sliding rail through the lead screw transmission principle, and a stress detector and a visual detector which are installed on the second sliding plate respectively detect the stress and the surface vision of the building steel structure;
step three: the control cabinet controls a third driving motor to work to drive a second driving belt wheel to rotate, the second driving belt wheel drives a second driven belt wheel to rotate through a second transmission belt, the second driven belt wheel drives a third screw rod to rotate, a third connecting seat and a detection platform are driven to slide along a third sliding rail in a reciprocating mode through the screw rod transmission principle, and the construction steel placed on the detection platform is detected under a stress detector and a visual detector;
step four: after the building steel is detected, the fourth driving motor works to drive the rotating shaft to rotate in the forward direction, the rotating shaft drives the curtain cloth to be rolled, so that a feeding opening formed in the outer protective casing is opened, the electromagnet is powered off and demagnetized, the L-shaped limiting block is loosened to fix the building steel, and the detected building steel is taken out and then is put into new building steel again for detection.
Preferably, the detection device comprises a device frame, an outer protective machine shell, a first sliding plate, a first motor base, a first bearing base, a first screw rod, a first connecting base, a vertical driving mechanism and a supporting plate; the outer protective casing is arranged outside the device frame, the lower end of the device frame is provided with the control cabinet, the top of the device frame is fixedly provided with a top plate, the middle part of the top plate is provided with a through hole, the front side and the back side of the top plate are fixedly provided with first slide rails, the lower end of the first slide plate is fixedly connected with slide blocks which are in sliding connection with the first slide rails, the first bearing seats are provided with two groups and are respectively and fixedly arranged on the left side and the right side of the top plate, bearings are arranged in the first bearing seats, two ends of a first lead screw are respectively and rotatably connected on the two groups of first bearing seats, a first motor seat is fixedly arranged on the top plate, a first driving motor is fixedly arranged on the first motor seat, the output end of the first driving motor is connected with the first lead screw, and a first, the first connecting seat is provided with a threaded through hole in threaded connection with the first screw rod;
the vertical driving mechanism comprises a connecting support, a second sliding plate, a fixed seat, a first driving belt and a second connecting seat, the connecting support is provided with two groups and fixedly connected to the lower end of the first connecting seat, a second sliding rail is fixedly arranged on the connecting support, two ends of the second sliding plate are slidably connected to the second sliding rail, the fixed seat is fixedly connected to the lower end of the first connecting seat, the fixed seat is provided with two groups, the lower end of one group of the fixed seat is fixedly provided with a second driving motor, the other group of the fixed seat is rotatably connected with a second lead screw, the output end of the second driving motor is connected with a first driving belt wheel, one end of the second lead screw is fixedly connected with a first driven belt wheel, the first driving belt wheel is connected with the first driven belt wheel through the first driving belt, and the second connecting seat is fixedly connected to the second sliding plate, the second connecting seat is in threaded connection with the second screw rod, and a stress detector and a visual detector are mounted on the second sliding plate; the supporting plate is horizontally and fixedly installed in the middle of the device rack, and the supporting plate is connected with a detection platform in a sliding mode.
Preferably, the front end and the rear end of the outer protective casing are rotatably connected with a device door, an observation window is arranged on the device door, and an alarm is arranged at the top end of the outer protective casing.
Preferably, a cooling fan is fixedly mounted on the outer protective casing, and the blowing direction of the cooling fan faces the control cabinet.
Preferably, the supporting plate is provided with a detection table driving mechanism, and the detection table driving mechanism comprises a third slide rail, a second motor base, a second transmission belt, a second driven belt wheel, a second bearing base, a third screw rod and a third connecting base; the third slide rail is provided with two sets of and fixed mounting and is in both ends around the backup pad, the secondary bearing frame is provided with two sets of and fixed mounting and is in both ends about the backup pad, the third lead screw both ends are rotated respectively and are connected on two sets of the secondary bearing frame, third lead screw one end fixedly connected with second driven pulleys, second motor cabinet fixed mounting is in the backup pad, fixed mounting has third driving motor on the second motor cabinet, third driving motor output is connected with second driving pulley, second driving pulley passes through second driving belt with second driven pulleys links to each other, third connecting seat threaded connection be in on the third lead screw, third connecting seat upper end with examine test table fixed connection, examine test table lower extreme sliding connection and be in on the third slide rail.
Preferably, outer protective housing side is provided with the pan feeding mouth, pan feeding mouth department fixed mounting has the third motor cabinet, fixed mounting has the fourth drive motor on the third motor cabinet, fourth drive motor output is connected with the third driving pulley, outer protective housing pan feeding mouth department both ends fixed mounting has the third bearing frame, it is connected with the axis of rotation to rotate on the third bearing frame, axis of rotation one end is connected with the third driven pulleys, be connected with third driving belt on the third driven pulleys, third driving belt with the third driving pulley links to each other, be connected with the curtain cloth in the axis of rotation, the curtain cloth is kept away from the one end of axis of rotation is connected with the balancing weight.
Preferably, the lower end of the detection table is provided with an electromagnet, a plurality of groups of L-shaped limiting blocks are placed on the detection table, and magnetic parts are arranged in the L-shaped limiting blocks.
The invention has the beneficial effects that: the construction steel to be detected is carried to a detection device, a fourth driving motor is controlled by a control cabinet to work, the fourth driving motor works to drive a third driving belt wheel to rotate, the third driving belt wheel drives a third driven belt wheel to rotate through a third transmission belt, the third driven belt wheel drives a rotating shaft to rotate in a forward direction, the rotating shaft drives a curtain cloth to roll so as to open a feeding port arranged on an outer protective casing, the fourth driving motor is arranged to drive the curtain cloth to fold and unfold, the stability during the detection of the construction steel is facilitated, the construction steel to be detected for structural stress is placed on a detection table, an L-shaped limiting block arranged on the detection table is adjusted to fix the periphery of the construction steel, the control cabinet is used for controlling electromagnet to be electrified to adsorb and fix an L-shaped limiting block, the L-shaped limiting block is adsorbed or loosened through the electromagnet, the position of the L-shaped limiting block can be conveniently adjusted to fix the construction steel, meanwhile, the building steels with different sizes can be well fixed conveniently;
after the building steel is fixed on the detection table, a fourth driving motor works to drive the rotating shaft to rotate reversely, the rotating shaft drives the curtain cloth to unreel so as to close a feeding hole arranged on the outer protective casing, the control cabinet controls a first driving motor to work to drive a first lead screw to rotate, a first connecting seat and a first sliding plate are driven to reciprocate along a first sliding rail by a lead screw transmission principle, a second driving motor works to drive a first driving belt wheel to rotate, the first driving belt wheel drives a first driven belt wheel to rotate through a first driving belt, the first driven belt wheel drives a second lead screw to rotate, a second connecting seat and a second sliding plate are driven to reciprocate along a second sliding rail by the lead screw transmission principle, a stress detector and a visual detector arranged on the second sliding plate respectively detect the stress and the surface vision of the building steel structure, and the stress detector and the visual detector can move in the horizontal and vertical directions by the lead screw transmission principle, the detection of different positions of the building steel is facilitated, so that the detection effect is improved, and the building steel with different sizes can be well detected;
the control cabinet controls a third driving motor to work to drive a second driving belt wheel to rotate, the second driving belt wheel drives a second driven belt wheel to rotate through a second transmission belt, the second driven belt wheel drives a third screw rod to rotate, a third connecting seat and a detection table are driven to slide along a third sliding rail in a reciprocating mode through the screw rod transmission principle, the construction steel placed on the detection table is detected under a stress detector and a visual detector, the detection table slides along the third sliding rail in a reciprocating mode under the screw rod transmission principle, different positions of the construction steel on the detection table can be detected conveniently, and therefore the detection effect is improved;
after the building steel is detected, the fourth driving motor works to drive the rotating shaft to rotate in the forward direction, the rotating shaft drives the curtain cloth to be rolled, so that a feeding opening formed in the outer protective casing is opened, the electromagnet is powered off and demagnetized, the L-shaped limiting block is loosened to fix the building steel, and the detected building steel is taken out and then is put into new building steel again for detection.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an isometric view of the present invention in its entirety;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is a schematic view of an internal axial structure of the present invention;
FIG. 5 is a schematic view of the vertical drive mechanism of the present invention;
FIG. 6 is a schematic axial view of the FIG. 5 embodiment of the present invention;
FIG. 7 is a schematic view of the driving mechanism of the inspection table according to the present invention;
FIG. 8 is a schematic view of the driving structure of the curtain of the present invention;
in the figure: 1. a device frame; 2. an outer protective housing; 3. a device door; 4. an observation window; 5. a control cabinet; 6. a heat radiation fan; 7. an alarm; 8. a top plate; 9. a first slide rail; 10. a first sliding plate; 11. a first motor mount; 12. a first drive motor; 13. a first bearing housing; 14. a first lead screw; 15. a first connecting seat; 16. connecting a bracket; 17. a second slide rail; 18. a second sliding plate; 19. a fixed seat; 20. a second drive motor; 21. a first driving pulley; 22. a first drive belt; 23. a first driven pulley; 24. a second lead screw; 25. a second connecting seat; 26. a support plate; 27. a detection table; 28. a third slide rail; 29. a second motor mount; 30. a third drive motor; 31. a second driving pulley; 32. a second drive belt; 33. a second driven pulley; 34. a second bearing housing; 35. a third screw rod; 36. a third connecting seat; 37. a third motor base; 38. a fourth drive motor; 39. a third driving pulley; 40. a third drive belt; 41. a third driven pulley; 42. a rotating shaft; 43. a cord fabric; 44. a balancing weight; 45. and a third bearing seat.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, a method for detecting stress of a building steel structure includes the following steps:
the method comprises the following steps: carrying the construction steel to be detected to a detection device, controlling the fourth driving motor 38 to work through the control cabinet 5, driving the third driving belt pulley 39 to rotate by the fourth driving motor 38, driving the third driven belt pulley 41 to rotate by the third driving belt 39 through the third driving belt 40, driving the rotating shaft 42 to rotate positively by the third driven belt pulley 41, driving the cord fabric 43 to roll by the rotating shaft 42 to open the feeding port arranged on the outer protective casing 2, placing the construction steel to be detected for structural stress on the detection table 27, adjusting the L-shaped limit block arranged on the detection table 27 to fix the periphery of the construction steel, and controlling the electromagnet to be electrified through the control cabinet 5 to adsorb and fix the L-shaped limit block;
step two: after the construction steel is fixed on the detection table 27, the fourth driving motor 38 works to drive the rotating shaft 42 to rotate reversely, the rotating shaft 42 drives the curtain cloth 43 to unreel, so that the feeding port arranged on the outer protective casing 2 is closed, the control cabinet 5 controls the first driving motor 12 to work to drive the first screw rod 14 to rotate, the first connecting seat 15 and the first sliding plate 10 are driven to reciprocate along the first sliding rail 9 by a screw rod transmission principle, the second driving motor 20 works to drive the first driving belt wheel 21 to rotate, the first driving belt wheel 21 drives the first driven belt wheel 23 to rotate by the first transmission belt 22, the first driven belt wheel 23 drives the second screw rod 24 to rotate, the second connecting seat 25 and the second sliding plate 18 are driven to slide back and forth along the second sliding rail 17 by a screw rod transmission principle, and a stress detector and a visual detector which are arranged on the second sliding plate 18 respectively detect the stress of the building steel structure and the surface vision;
step three: the control cabinet 5 controls the third driving motor 30 to work to drive the second driving belt wheel 31 to rotate, the second driving belt wheel 31 drives the second driven belt wheel 33 to rotate through the second transmission belt 32, the second driven belt wheel 33 drives the third screw rod 35 to rotate, the third connecting seat 36 and the detection platform 27 are driven to slide back and forth along the third slide rail 28 through the screw rod transmission principle, and the construction steel placed on the detection platform 27 is detected under the stress detector and the visual detector;
step four: after the building steel is detected, the fourth driving motor 38 works to drive the rotating shaft 42 to rotate in the forward direction, the rotating shaft 42 drives the curtain cloth 43 to roll, so that a feeding opening formed in the outer protective casing 2 is opened, the electromagnet is powered off and demagnetized, the L-shaped limiting block is loosened to fix the building steel, and the detected building steel is taken out and then is put in a new building steel again for detection.
The detection device comprises a device frame 1, an outer protective machine shell 2, a first sliding plate 10, a first motor seat 11, a first bearing seat 13, a first screw rod 14, a first connecting seat 15, a vertical driving mechanism and a supporting plate 26; the outer protective casing 2 is installed outside the device frame 1, the lower end of the device frame 1 is provided with the control cabinet 5, the top of the device frame 1 is fixedly provided with a top plate 8, the middle part of the top plate 8 is provided with a through hole, the front side and the rear side of the top plate 8 are both fixedly provided with first slide rails 9, the lower end of the first slide plate 10 is fixedly connected with slide blocks which are in sliding connection with the first slide rails 9, two groups of first bearing seats 13 are arranged and respectively fixedly installed at the left side and the right side of the top plate 8, bearings are installed in the first bearing seats 13, two ends of a first lead screw 14 are respectively and rotatably connected on the two groups of first bearing seats 13, a first motor seat 11 is fixedly installed on the top plate 8, a first driving motor 12 is fixedly installed on the first motor seat 11, and the output end of the first driving motor 12 is connected, the first connecting seat 15 is fixedly connected to the lower end of the first sliding plate 10, and a threaded through hole in threaded connection with the first lead screw 14 is formed in the first connecting seat 15;
the vertical driving mechanism comprises a connecting support 16, a second sliding plate 18, a fixed seat 19, a first driving belt 22 and a second connecting seat 25, wherein the connecting support 16 is provided with two groups and fixedly connected to the lower end of the first connecting seat 15, the connecting support 16 is fixedly provided with a second sliding rail 17, two ends of the second sliding plate 18 are slidably connected to the second sliding rail 17, the fixed seat 19 is fixedly connected to the lower end of the first connecting seat 15, the fixed seat 19 is provided with two groups, one group of the fixed seat 19 is fixedly provided with a second driving motor 20, the other group of the fixed seat 19 is rotatably connected with a second lead screw 24, the output end of the second driving motor 20 is connected with a first driving belt wheel 21, one end of the second lead screw 24 is fixedly connected with a first driven belt wheel 23, the first driving belt wheel 21 is connected with the first driven belt wheel 23 through the first driving belt 22, the second connecting seat 25 is fixedly connected to the second sliding plate 18, the second connecting seat 25 is in threaded connection with the second lead screw 24, and a stress detector and a visual detector are mounted on the second sliding plate 18; the supporting plate 26 is horizontally and fixedly installed in the middle of the device frame 1, and a detection table 27 is connected to the supporting plate 26 in a sliding mode.
The front end and the rear end of the outer protective casing 2 are rotatably connected with a device door 3, an observation window 4 is arranged on the device door 3, and an alarm 7 is arranged at the top end of the outer protective casing 2.
And a cooling fan 6 is fixedly installed on the outer protective casing 2, and the blowing direction of the cooling fan 6 faces the control cabinet 5.
A detection table driving mechanism is arranged on the supporting plate 26 and comprises a third slide rail 28, a second motor base 29, a second transmission belt 32, a second driven belt wheel 33, a second bearing base 34, a third screw rod 35 and a third connecting base 36; the third slide rails 28 are provided with two sets and are fixedly installed at the front and rear ends of the supporting plate 26, the second bearing blocks 34 are provided in two sets and are fixedly mounted at the left and right ends of the supporting plate 26, two ends of the third screw rod 35 are respectively and rotatably connected to the two groups of second bearing seats 34, one end of the third screw rod 35 is fixedly connected with a second driven belt wheel 33, the second motor base 29 is fixedly arranged on the supporting plate 26, a third driving motor 30 is fixedly arranged on the second motor base 29, the output end of the third driving motor 30 is connected with a second driving pulley 31, the second driving pulley 31 is connected with the second driven pulley 33 through the second transmission belt 32, the third connecting seat 36 is connected to the third screw rod 35 by screw threads, the upper end of the third connecting seat 36 is fixedly connected with the detection table 27, and the lower end of the detection table 27 is connected to the third slide rail 28 in a sliding manner.
2 sides of outer protection casing are provided with the pan feeding mouth, pan feeding mouth department fixed mounting has third motor cabinet 37, fixed mounting has fourth drive motor 38 on the third motor cabinet 37, fourth drive motor 38 output is connected with third driving pulley 39, 2 pan feeding mouth department both ends fixed mounting of outer protection casing has third bearing seat 45, rotate on the third bearing seat 45 and be connected with axis of rotation 42, axis of rotation 42 one end is connected with third driven pulley 41, be connected with third driving belt 40 on the third driven pulley 41, third driving belt 40 with third driving pulley 39 links to each other, be connected with curtain cloth 43 on the axis of rotation 42, curtain cloth 43 keeps away from the one end of axis of rotation 42 is connected with balancing weight 44.
Detect platform 27 lower extreme and be provided with the electro-magnet, it has placed a plurality of groups L type stoppers on the platform 27 to detect, be provided with magnetic part in the L type stopper.
When the building steel detection device is used, building steel to be detected is carried to a detection device, the control cabinet 5 controls the fourth driving motor 38 to work, the fourth driving motor 38 works to drive the third driving belt wheel 39 to rotate, the third driving belt wheel 39 drives the third driven belt wheel 41 to rotate through the third transmission belt 40, the third driven belt wheel 41 drives the rotating shaft 42 to rotate in the positive direction, the rotating shaft 42 drives the cord fabric 43 to roll so as to open a feeding port arranged on the outer protective casing 2, the building steel to be detected for structural stress is placed on the detection table 27, the L-shaped limiting block placed on the detection table 27 is adjusted to fix the periphery of the building steel, and the control cabinet 5 controls electromagnet to be electrified to adsorb and fix the L-shaped limiting block;
after the construction steel is fixed on the detection table 27, the fourth driving motor 38 works to drive the rotating shaft 42 to rotate reversely, the rotating shaft 42 drives the curtain cloth 43 to unreel, so that the feeding port arranged on the outer protective casing 2 is closed, the control cabinet 5 controls the first driving motor 12 to work to drive the first screw rod 14 to rotate, the first connecting seat 15 and the first sliding plate 10 are driven to reciprocate along the first sliding rail 9 by a screw rod transmission principle, the second driving motor 20 works to drive the first driving belt wheel 21 to rotate, the first driving belt wheel 21 drives the first driven belt wheel 23 to rotate by the first transmission belt 22, the first driven belt wheel 23 drives the second screw rod 24 to rotate, the second connecting seat 25 and the second sliding plate 18 are driven to slide back and forth along the second sliding rail 17 by a screw rod transmission principle, and a stress detector and a visual detector which are arranged on the second sliding plate 18 respectively detect the stress of the building steel structure and the surface vision;
the control cabinet 5 controls the third driving motor 30 to work to drive the second driving belt wheel 31 to rotate, the second driving belt wheel 31 drives the second driven belt wheel 33 to rotate through the second transmission belt 32, the second driven belt wheel 33 drives the third screw rod 35 to rotate, the third connecting seat 36 and the detection platform 27 are driven to slide back and forth along the third slide rail 28 through the screw rod transmission principle, and the construction steel placed on the detection platform 27 is detected under the stress detector and the visual detector;
after the building steel is detected, the fourth driving motor 38 works to drive the rotating shaft 42 to rotate in the forward direction, the rotating shaft 42 drives the curtain cloth 43 to roll, so that a feeding opening formed in the outer protective casing 2 is opened, the electromagnet is powered off and demagnetized, the L-shaped limiting block is loosened to fix the building steel, and the detected building steel is taken out and then is put in a new building steel again for detection.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
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| NO323931B1 (en) * | 2005-04-05 | 2007-07-23 | Harald Horn | Painting of the state in stable structures by the pressure of a pulse-shaped electric current and analysis of the voltage drop |
| JP2007303916A (en) * | 2006-05-10 | 2007-11-22 | K & T Consultant:Kk | Stress measurement method for structures |
| CN202299463U (en) * | 2011-09-08 | 2012-07-04 | 上海建科工程咨询有限公司 | Pre-stress detecting and adjusting device for steel structures |
| CN106839983B (en) * | 2017-03-06 | 2024-01-02 | 苏州精创光学仪器有限公司 | Stress quadratic element detects all-in-one |
| CN207351598U (en) * | 2017-11-08 | 2018-05-11 | 福建省永正工程质量检测有限公司 | One kind is used for steel construction prestress detection regulating device |
| CN209783791U (en) * | 2019-05-14 | 2019-12-13 | 北京市建设工程质量第二检测所有限公司 | Many regular steel construction stress detection device convenient to it is fixed |
| CN110160886A (en) * | 2019-07-02 | 2019-08-23 | 杭州戬威机电科技有限公司 | A kind of welding steel stress detection device |
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Effective date of registration: 20210531 Address after: Room 1-1712, ideal garden, 15612 Century Avenue, high tech Zone, Jinan City, Shandong Province Applicant after: Shandong Baoye Construction Co.,Ltd. Address before: 050000 room 1910, building 3, jueshishan, Beicheng District, Dingzhou City, Baoding City, Hebei Province Applicant before: Ma Lei |
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Denomination of invention: A stress detection method for building steel structures Granted publication date: 20210618 Pledgee: Jinan Rural Commercial Bank Co.,Ltd. Licheng sub branch Pledgor: Shandong Baoye Construction Co.,Ltd. Registration number: Y2025980015298 |