CN113740177B - Bending performance detection device for steel box girder for road bridge construction - Google Patents
Bending performance detection device for steel box girder for road bridge construction Download PDFInfo
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- CN113740177B CN113740177B CN202110825167.1A CN202110825167A CN113740177B CN 113740177 B CN113740177 B CN 113740177B CN 202110825167 A CN202110825167 A CN 202110825167A CN 113740177 B CN113740177 B CN 113740177B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 102
- 239000010959 steel Substances 0.000 title claims abstract description 102
- 238000001514 detection method Methods 0.000 title claims abstract description 44
- 238000005452 bending Methods 0.000 title claims abstract description 27
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 37
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a steel box girder bending performance detection device for road and bridge construction, which comprises a connecting seat, a frame, a starting switch, a reset switch, a telescopic component and a pressure testing component. According to the invention, the steel box girder is placed in the frame, the starting switch is pressed, the starting switch sends out a signal, the control module firstly controls the pressure testing assembly to operate for two seconds after receiving the signal, the control module further controls the telescopic assembly to operate, the telescopic assembly operates to drive the pressure testing assembly to move downwards to contact the steel box girder, and the pressure testing assembly is used for detecting the bending of the steel box girder, so that the bending of the steel box girder can be detected, and the unqualified steel box girder is avoided.
Description
Technical Field
The invention relates to a detection device, in particular to a steel box girder bending performance detection device for road and bridge construction.
Background
In road bridge construction, the steel box girder is required to be used, but in order to ensure construction quality, the bending performance of the steel box girder is required to be detected in advance, the unqualified steel box girder cannot be used, at present, the steel box girder is a common object in engineering, the steel box girder is widely used in road bridge construction, but the steel box girder has a complex structure, the quality of the steel box girder is required to be ensured, the reworking problem caused by unqualified phenomenon is avoided, and the construction cost and the time cost are increased.
Therefore, it is necessary to design and develop a steel box girder bending performance detection device for road and bridge construction, which can detect the bending of the steel box girder and avoid the increase of construction cost and time cost caused by the unqualified phenomenon.
Disclosure of Invention
In order to overcome the defect that the construction cost and the time cost are increased due to the fact that the quality of the steel box girder is ensured and the reworking problem caused by unqualified phenomenon is avoided, the technical problem of the invention is that: the steel box girder bending performance detection device for road and bridge construction can detect the bending of the steel box girder, and avoids the increase of construction cost and time cost caused by unqualified phenomenon.
The technical scheme is as follows: the utility model provides a steel case roof beam survey bending property detection device for road bridge construction, includes connecting seat, frame, start switch, reset switch, expansion assembly and pressure test assembly, the outside both sides of frame all rigid coupling has the connecting seat, and expansion assembly installs one side in the frame, and start switch rigid coupling is in the outside one side of frame, and the reset switch rigid coupling is in the outside one side of frame that is close to start switch.
The telescopic assembly comprises a first electric push rod, a connecting sleeve and a first distance sensor, wherein the first electric push rod is fixedly connected to the edge position of the middle part of one side of the frame, the connecting sleeve is fixedly connected to the end part of the telescopic rod of the first electric push rod, the connecting sleeve is connected with the pressure testing assembly in a matched mode, and the first distance sensor is fixedly sleeved on one side of the first electric push rod in the circumferential direction.
The pressure testing assembly comprises a second electric push rod, a first pressure sensor, a first L-shaped connecting rod, an LCD display screen and a buzzer, wherein the second electric push rod is fixedly connected with the inner circumference of the connecting sleeve in a penetrating manner, the first pressure sensor is fixedly connected with the end part of a telescopic rod of the second electric push rod, the first L-shaped connecting rod is fixedly sleeved on one circumference of the telescopic rod of the first electric push rod, one end of the first L-shaped connecting rod is slidably sleeved on the telescopic rod of the second electric push rod, the buzzer is installed in the middle of one side outside the frame, and the LCD display screen is installed on one side outside the frame, which is close to the reset switch.
Preferably, still including detection component, detection component is including uide bushing, slide bar, first spring, first backup pad, solid fixed ring and second distance sensor, uide bushing rigid coupling is in one side middle part in the frame, and slide bar slidingtype is established in the uide bushing, and first backup pad rigid coupling is in the slide bar tip towards first pressure sensor, and first spring coupling is in between slide bar one end and the frame one side middle part in, and first spring is located the uide bushing, and gu fixed cover is in uide bushing outer side circumference, and second distance sensor installs in gu fixed ring outer one side.
Preferably, the device further comprises an auxiliary supporting component, the auxiliary supporting component comprises a third electric push rod, an L-shaped supporting rod and a second supporting plate, the third electric push rod is symmetrically and fixedly connected to one side in the frame, the second supporting plate is fixedly connected to the end part of a telescopic rod of the third electric push rod, the L-shaped supporting rod is fixedly sleeved on one side of the third electric push rod in the circumferential direction, and one end of the L-shaped supporting rod is fixedly connected with one side in the frame.
Preferably, the device further comprises a limiting assembly, wherein the limiting assembly comprises an L-shaped sliding sleeve, a limiting plate, a second spring and a movable rod, the L-shaped sliding sleeve is fixedly connected to two sides outside the frame, the movable rod is slidably connected to one side of the L-shaped sliding sleeve in a penetrating mode, the limiting plate is fixedly connected to one end of the movable rod, the second spring is connected between one side of the limiting plate and one inner side of the L-shaped sliding sleeve, and the second spring is wound on the movable rod.
Preferably, still including the screens subassembly, the screens subassembly is including guide rail, slider, third spring, auxiliary roller, electromagnetic lock, second L type connecting rod, fifth spring and second pressure sensor, the embedded rigid coupling of guide rail symmetry is in the frame that is close to the second backup pad, slider slidingtype suit is on the guide rail, third spring is connected between slider one side and frame inboard, electromagnetic lock installs in the slider inboard, auxiliary roller pivoted connection is between two slider one sides in every side, second L type connecting rod slidingtype suit is in first electric putter's telescopic link circumference upward, fifth spring is connected between the outer side of second L type connecting rod and the outer side of first L type connecting rod, the fifth spring winds in first electric putter's telescopic link circumference upward, second pressure sensor installs in the frame that is close to first electric putter one side, second pressure sensor cooperates with the second L type connecting rod.
Preferably, still including the control box, the control box is installed in frame outside one side, including switching power supply in the control box, power module and control module, switching power supply is whole detection device power supply, switching power supply's output and power module pass through electric connection, there is the power master switch through the line connection on power module's the output, power module and control module pass through electric connection, be connected with DS1302 clock circuit and 24C02 circuit on the control module, start-up switch, reset switch, a distance sensor, a pressure sensor, LCD display screen and bee calling organ all pass through electric connection with control module, a motor-driven push rod and electromagnetic lock all pass through peripheral circuit connection with control module.
The beneficial effects are that:
1. the steel box girder is placed in the frame, the starting switch is pressed, the starting switch sends out a signal, the control module firstly controls the pressure testing assembly to operate for two seconds after receiving the signal, the control module controls the telescopic assembly to operate, the telescopic assembly operates to drive the pressure testing assembly to move downwards to contact with the steel box girder, the pressure testing assembly is used for detecting bending of the steel box girder, and therefore the steel box girder can be detected, and unqualified steel box girders are avoided.
2. Under the effect of the detection assembly, when the steel box girder is bent, the steel box girder drives the first supporting plate to move downwards, and the second distance sensor starts to detect the bending movement distance of the steel box girder, so that an operator can know more clearly how much force is used, and how much distance the steel box girder can be bent.
3. Under the action of the clamping component, the steel box girder can be sucked and fixed when moving to the appointed position, so that the phenomenon that the steel box girder moves can be avoided to influence the detection.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a schematic cross-sectional perspective view of the present invention.
Fig. 4 is a schematic perspective view of a first embodiment of the telescopic assembly of the present invention.
Fig. 5 is a schematic view of a second perspective structure of the telescopic assembly of the present invention.
Fig. 6 is a schematic diagram of a first perspective structure of the pressure testing assembly of the present invention.
FIG. 7 is a schematic diagram of a second perspective view of the pressure testing assembly of the present invention.
Fig. 8 is a schematic perspective view of a detection assembly according to the present invention.
FIG. 9 is a schematic perspective view of a cross-section of a detection assembly of the present invention.
Fig. 10 is a schematic perspective view of an auxiliary supporting assembly according to the present invention.
Fig. 11 is a schematic perspective view of a limiting assembly according to the present invention.
Fig. 12 is a schematic perspective view of a detent assembly of the present invention.
Fig. 13 is a schematic cross-sectional perspective view of a detent assembly of the present invention.
Fig. 14 is an enlarged perspective view of fig. 13 a according to the present invention.
Fig. 15 is a schematic view of a second perspective structure of the detent assembly of the present invention.
Fig. 16 is a circuit block diagram of the present invention.
Fig. 17 is a schematic circuit diagram of the present invention.
Wherein the above figures include the following reference numerals: 1. the device comprises a connecting seat, 2, a frame, 3, a control box, 31, a starting switch, 32, a reset switch, 4, a telescopic component, 43, a first electric push rod, 44, a connecting sleeve, 45, a first distance sensor, 5, a pressure testing component, 51, a second electric push rod, 52, a first pressure sensor, 53, a first L-shaped connecting rod, 54, an LCD display screen, 55, a buzzer, 6, a detection component, 61, a guide sleeve, 62, a slide rod, 63, a first spring, 64, a first support plate, 65, a fixed ring, 66, a second distance sensor, 7, an auxiliary support component, 71, a third electric push rod, 72, an L-shaped support rod, 73, a second support plate, 8, a limiting component, 81, an L-shaped sliding sleeve, 82, a limiting plate, 83, a second spring, 84, a movable rod, 9, a clamping component, 91, a guide rail, 92, a sliding block, 93, a third spring, 94, an auxiliary roller, 95, an electromagnetic lock, 96, a second L-shaped connecting rod, 97, a fifth spring, 98 and a second pressure sensor.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
Examples: a steel case roof beam bending performance detection device for road bridge construction.
Referring to fig. 1-7, the device comprises a connecting seat 1, a frame 2, a starting switch 31, a reset switch 32, a telescopic component 4 and a pressure testing component 5, wherein the lower parts of the left side surface and the right side surface outside the frame 2 are fixedly connected with the connecting seat 1, the front side of the bottom inside the frame 2 is provided with the telescopic component 4, the pressure testing component 5 is arranged between the telescopic component 4 and the frame 2, the upper part of the right side surface of the front side surface outside the frame 2 is fixedly connected with the starting switch 31 and the reset switch 32, and the starting switch 31 is positioned on the right side of the reset switch 32.
The telescopic assembly 4 comprises a first electric push rod 43, a connecting sleeve 44 and a first distance sensor 45, the middle of the front side of the bottom in the frame 2 is fixedly connected with the first electric push rod 43, the first distance sensor 45 is fixedly sleeved on the upper part of the first electric push rod 43 in a circumferential direction, the connecting sleeve 44 is fixedly connected with the end part of the telescopic rod of the first electric push rod 43, and the connecting sleeve 44 is connected with the pressure testing assembly 5.
The pressure testing assembly 5 comprises a second electric push rod 51, a first pressure sensor 52, a first L-shaped connecting rod 53, an LCD display screen 54 and a buzzer 55, wherein the second electric push rod 51 is fixedly connected in the connecting sleeve 44 in a penetrating manner, the first pressure sensor 52 is fixedly connected to the end part of a telescopic rod of the second electric push rod 51, the first L-shaped connecting rod 53 is circumferentially fixedly connected to the upper part of the telescopic rod of the first electric push rod 43, the upper part of the first L-shaped connecting rod 53 is sleeved on the telescopic rod of the second electric push rod 51, the first L-shaped connecting rod 53 is in sliding fit with the telescopic rod of the second electric push rod 51, the LCD display screen 54 is arranged on the right side of the outer front side of the frame 2, and the buzzer 55 is fixedly connected to the middle part of the upper part of the outer right side of the frame 2.
The power master switch is pressed down by people to power on the detection device, firstly, an operator puts a steel box girder into the frame 2, presses the starting switch 31 once, the starting switch 31 sends out signals, the control module firstly controls the pressure test assembly 5 to move backwards for two seconds after receiving the signals, and then controls the pressure test assembly 5 to stop moving after two seconds, meanwhile, the control module also controls the telescopic assembly 4 to operate after receiving the signals, the telescopic assembly 4 operates to drive the pressure test assembly 5 to move downwards, when the pressure test assembly 5 moves downwards to be in contact with the steel box girder, the pressure test assembly 5 continuously extrudes the steel box girder, the pressure test assembly 5 displays the used force, after five seconds, the control module controls the telescopic assembly 4 to stop operating, and the operator can know whether the bent force of the steel box girder reaches the required value through the force displayed on the pressure test assembly 5, so that whether the steel box girder is qualified or not can be known. When the data displayed on the pressure testing component 5 is recorded, the reset switch 32 is pressed once, the reset switch 32 sends out a signal, the control module receives the signal and then controls the pressure testing component 5 to operate for two seconds to reset, the control module controls the pressure testing component 5 to stop operating after two seconds, meanwhile, the control module also controls the telescopic component 4 to operate for five seconds, the telescopic component 4 is reset after five seconds, the control module controls the telescopic component 4 to stop operating, and the steel box girder after detection is completed can be taken down, so that the operation is repeated, and the bending of the steel box girder can be continuously detected.
When the detection device is electrified, the control module controls the first distance sensor 45 to work, when an operator presses the start switch 31 once, the control module controls the pressure test assembly 5 to operate for two seconds after receiving a signal, after two seconds, the control module controls the pressure test assembly 5 to stop operating, and controls the telescopic rod of the first electric push rod 43 to shorten for five seconds, the telescopic rod of the first electric push rod 43 shortens and drives the connecting sleeve 44 to move downwards, the connecting sleeve 44 moves downwards and drives the pressure test assembly 5 to move downwards, the pressure test assembly 5 moves downwards to contact with a steel box girder for bending detection, after five seconds, the control module controls the telescopic rod of the first electric push rod 43 to stop moving downwards, detection on bending of the steel box girder is completed, the reset switch 32 is pressed, the reset switch 32 sends a signal, after receiving the signal, the control module controls the pressure test assembly 5 to operate for two seconds to reset, after two seconds, the control module controls the telescopic rod of the first electric push rod 43 to stop operating, the telescopic rod of the first electric push rod 43 extends for five seconds, the telescopic rod of the first electric push rod 43 drives the connecting sleeve 44 to move upwards, the telescopic rod of the connecting sleeve 44 moves upwards, the telescopic rod of the first electric push rod 43 moves upwards and drives the pressure test assembly 5 to move upwards, the five seconds to move upwards, and the distance sensor 45 stops moving after the first distance sensor 45 receives the signal, and the rated value is detected, and the distance sensor 45 moves.
When the detection device is electrified, the first pressure sensor 52 starts to work, after the steel box girder is placed, an operator presses the starting switch 31 once, the starting switch 31 sends out a signal, the control module receives the signal and then controls the expansion link of the second electric push rod 51 to extend for two seconds, the expansion link of the second electric push rod 51 extends to drive the first pressure sensor 52 to move backwards, after two seconds, the control module controls the expansion link of the second electric push rod 51 to stop moving backwards, the first pressure sensor 52 stops moving backwards, when the connecting sleeve 44 moves downwards, the connecting sleeve 44 drives the second electric push rod 51 to move downwards, the second electric push rod 51 moves downwards to drive the first pressure sensor 52 to move downwards, the first pressure sensor 52 moves downwards to contact the steel box girder, the first pressure sensor 52 carries out bending detection on the steel box girder, the first pressure sensor 52 sends out a signal, the control module receives the signal and then controls the LCD display screen 54 to display the using force, five seconds later, the connecting sleeve 44 stops moving downwards, the second electric push rod 51 stops driving the first pressure sensor 52 to move downwards, meanwhile, the control module controls the buzzer 55 to sound, the steel box girder is detected, three seconds later, the control module controls the buzzer 55 to be closed, an operator can record the data displayed on the LCD display screen 54, knows whether the steel box girder is qualified for bending detection or not through the data, presses the reset switch 32, the reset switch 32 sends out a signal, the control module receives the signal and then controls the telescopic rod of the second electric push rod 51 to shorten for two seconds, the telescopic rod of the second electric push rod 51 shortens and drives the first pressure sensor 52 to move forwards, after two seconds, the control module controls the telescopic rod of the second electric push rod 51 to stop shortening, the first pressure sensor 52 is reset, and the connecting sleeve 44 moves upwards to drive the first pressure sensor 52 to move upwards for resetting through the second electric push rod 51.
Referring to fig. 1, fig. 2, fig. 3, fig. 8, fig. 9 and fig. 10, the detecting device further comprises a detecting component 6, the detecting component 6 comprises a guide sleeve 61, a slide bar 62, a first spring 63, a first support plate 64, a fixed ring 65 and a second distance sensor 66, the guide sleeve 61 is fixedly connected in the middle of the bottom in the frame 2, the slide bar 62 is slidably arranged in the guide sleeve 61, the first support plate 64 is fixedly connected at the top end of the slide bar 62, the first spring 63 is connected between the bottom end of the slide bar 62 and the bottom in the frame 2, the first spring 63 is positioned in the guide sleeve 61, the fixed ring 65 is fixedly connected at the circumferential upper part of the outer part of the guide sleeve 61, and the second distance sensor 66 is mounted at the right end of the fixed ring 65.
The auxiliary supporting assembly 7 comprises a third electric push rod 71, an L-shaped supporting rod 72 and a second supporting plate 73, wherein the third electric push rod 71 is fixedly connected between the left side and the right side of the inner bottom of the frame 2, the second supporting plate 73 is fixedly connected with the end part of a telescopic rod of the third electric push rod 71, the second supporting plate 73 is positioned in the frame 2, the L-shaped supporting rod 72 is fixedly connected with the upper part of the third electric push rod 71 in the circumferential direction, and the bottom end of the L-shaped supporting rod 72 is fixedly connected with the inner bottom of the frame 2.
When the detection device is electrified, the control module controls the second distance sensor 66 to work, and then the steel box girder is placed in the frame 2 for detection, the steel box girder is contacted with the first support plate 64, and then the first pressure sensor 52 moves downwards to carry out bending detection on the steel box girder, the steel box girder bends to drive the first support plate 64 to move downwards, the first support plate 64 moves downwards to drive the slide rod 62 to move downwards, the first spring 63 is compressed, the distance value detected by the second distance sensor 66 changes along with the continuous downward movement of the first support plate 64, the second distance sensor 66 sends out a signal, the control module receives the signal and then controls the LCD display screen 54 to display the detected distance, an operator can record the distance displayed on the LCD display screen 54, after the steel box girder is detected, the operator takes out the steel box girder from the frame 2, the steel box girder is separated from the first support plate 64, the slide rod 62 drives the first support plate 64 to move upwards to reset due to the action of the first spring 63, and the distance value detected by the second distance sensor 66 is equal to the rated value in the control module. Therefore, an operator can know more clearly how much force is applied, and how much distance the steel box girder can be bent.
Firstly, an operator puts the steel box girder between two second support plates 73, presses the start switch 31, the start switch 31 sends out a signal, after receiving the signal, the control module firstly controls the telescopic rod of the third electric push rod 71 to shorten seven seconds, the telescopic rod of the third electric push rod 71 shortens and drives the second support plates 73 to move downwards, the second support plates 73 move downwards and drive the steel box girder to move downwards into the frame 2, after seven seconds, the control module controls the telescopic rod of the third electric push rod 71 to stop shortening, the second support plates 73 also stop driving the steel box girder to move downwards, and therefore the steel box girder is indicated to move to a designated position, and the first pressure sensor 52 starts to perform bending detection on the steel box girder. After the steel box girder bending detection is completed, the reset switch 32 is pressed once, after the first pressure sensor 52 moves upwards and resets, the control module controls the expansion link of the third electric push rod 71 to extend for seven seconds, the expansion link of the third electric push rod 71 extends to drive the second support plate 73 to move upwards, the second support plate 73 moves upwards to drive the steel box girder to move upwards, after seven seconds, the control module controls the expansion link of the third electric push rod 71 to stop extending, the second support plate 73 stops driving the steel box girder to move upwards, and an operator can take down the steel box girder. Therefore, the steel box girder after detection is more convenient for operators to take down.
Referring to fig. 1, fig. 2, fig. 3, fig. 11, fig. 12, fig. 13, fig. 14 and fig. 15, the device further comprises a limiting component 8, the limiting component 8 comprises an L-shaped sliding sleeve 81, a limiting plate 82, a second spring 83 and a movable rod 84, the left side and the right side of the upper portion of the outer front side face of the frame 2 are fixedly connected with the L-shaped sliding sleeve 81, the upper portion of the L-shaped sliding sleeve 81 is slidably connected with the movable rod 84 in a penetrating manner, the rear end of the movable rod 84 is fixedly connected with the limiting plate 82, the second spring 83 is connected between the front side face of the limiting plate 82 and the upper portion of the inner front side face of the L-shaped sliding sleeve 81, and the second spring 83 is wound on the movable rod 84.
The clamping assembly 9 comprises a guide rail 91, a slide block 92, a third spring 93, an auxiliary roller 94, an electromagnetic lock 95, a second L-shaped connecting rod 96, a fifth spring 97 and a second pressure sensor 98, wherein the upper parts of the left side and the right side of the frame 2 are symmetrically embedded and fixedly connected with the guide rail 91, the slide block 92 is sleeved on the guide rail 91 in a sliding manner, the third spring 93 is connected between the outer side of the slide block 92 and the inside of the frame 2, the third spring 93 is wound on the guide rail 91, the electromagnetic lock 95 is fixedly connected on the inner side surfaces of the front side and the rear side of the slide block 92, the auxiliary roller 94 is rotatably connected between the middle parts of the inner side surfaces of the front side and the rear side of the slide block 92, the second L-shaped connecting rod 96 is sleeved on the telescopic rod of the first electric push rod 43 in a sliding manner, the fifth spring 97 is connected between the outer top of the second L-shaped connecting rod 96 and the bottom of the first L-shaped connecting rod 53, the fifth spring 97 is wound on the telescopic rod of the first electric push rod 43, the front side of the bottom of the frame 2 is fixedly connected with the second pressure sensor 98, and the second pressure sensor 98 is matched with the second L-shaped connecting rod 96.
When the operator puts the steel box girder between the two second support plates 73, the steel box girder is pushed to move forward to be in contact with the limiting plate 82, and the limiting plate 82 can be tightly in contact with the steel box girder to limit the steel box girder due to the action of the second springs 83. When the steel box girder moves downwards into the frame 2, the steel box girder is separated from the limiting plate 82, and then after the steel box girder is detected, the steel box girder is driven to move upwards to reset to be contacted with the limiting plate 82, and the steel box girder is taken down to be separated from the limiting plate 82. Thus, the steel box girder can be accurately placed between the two second supporting plates 73, and the position deviation is avoided to influence the detection.
When the detection device is powered on, the second pressure sensor 98 starts to work, and then the second supporting plate 73 moves downwards to drive the steel box girder to move downwards, the steel box girder moves downwards to be in contact with the auxiliary roller 94, the steel box girder moves downwards to drive the auxiliary roller 94 to move outwards, the auxiliary roller 94 moves outwards to drive the sliding block 92 to move outwards, the third spring 93 is compressed, the steel box girder continues to move downwards and is not in contact with the auxiliary roller 94, the sliding block 92 moves inwards to drive the auxiliary roller 94 to move inwards to reset due to the effect of the third spring 93, the sliding block 92 drives the electromagnetic lock 95 to be in contact with the inner wall of the steel box girder, and then when the telescopic rod of the first electric push rod 43 is shortened, the telescopic rod of the first electric push rod 43 shortens to drive the first L-shaped connecting rod 53 to move downwards, the first L-shaped connecting rod 53 moves downwards to drive the second L-shaped connecting rod 96 to move downwards through the fifth spring 97, when the second L-shaped connecting rod 96 moves downwards to be in contact with the second pressure sensor 98, the second pressure sensor 98 sends a signal, the control module receives the signal to control the signal to reset the lock 95, the electromagnetic lock 95 is in operation, the electromagnetic lock 95 is driven to suck the steel box girder, the second L-shaped connecting rod 98 is fixed, and the second L-shaped connecting rod moves downwards to move downwards to the second L-shaped connecting rod 96 to be compressed downwards. When the steel box girder is detected, the reset switch 32 is pressed, the expansion link of the first electric push rod 43 extends to drive the first L-shaped connecting rod 53 to move upwards for reset, the first L-shaped connecting rod 53 resets to enable the fifth spring 97 to stretch for reset, the first L-shaped connecting rod 53 resets to drive the second L-shaped connecting rod 96 to move upwards for reset through the fifth spring 97, the second L-shaped connecting rod 96 resets to be separated from the second pressure sensor 98, the second pressure sensor 98 sends out a signal, the control module receives the signal and then controls the electromagnetic lock 95 to stop operating, the electromagnetic lock 95 loosens the steel box girder, the second support plate 73 drives the steel box girder to move upwards for reset, and the steel box girder moves upwards to slide from the auxiliary roller 94 due to the action of the third spring 93. Therefore, the phenomenon that the steel box girder moves can be avoided from influencing detection.
Referring to fig. 1, 16 and 17, the device further comprises a control box 3, the control box 3 is installed on the upper portion of the left side of the front side of the outer side of the frame 2, the control box 3 comprises a switch power supply, a power supply module and a control module, the switch power supply supplies power to the whole detection device, the output end of the switch power supply is electrically connected with the power supply module, the output end of the power supply module is connected with a power supply main switch through a circuit, the power supply module is electrically connected with the control module, the control module is connected with a DS1302 clock circuit and a 24C02 circuit, and the starting switch 31, the reset switch 32, the first distance sensor 45, the second distance sensor 66, the first pressure sensor 52, the second pressure sensor 98, the LCD display screen 54 and the buzzer 55 are electrically connected with the control module, and the first electric push rod 43, the second electric push rod 51, the third electric push rod 71 and the electromagnetic lock 95 are electrically connected with the control module through peripheral circuits.
It should be understood that this example is only illustrative of the invention and is not intended to limit the scope of the invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
Claims (2)
1. The steel box girder bending performance detection device for road and bridge construction is characterized by comprising a connecting seat (1), a frame (2), a starting switch (31), a reset switch (32), a telescopic component (4) and a pressure test component (5), wherein the connecting seat (1) is fixedly connected to the outer two sides of the frame (2), the telescopic component (4) is arranged on the front side of the inner bottom of the frame (2), the starting switch (31) is fixedly connected to the upper part of the right side of the outer front side of the frame (2), and the reset switch (32) is fixedly connected to the outer left side of the frame (2) close to the starting switch (31); the telescopic assembly (4) comprises a first electric push rod (43), a connecting sleeve (44) and a first distance sensor (45), wherein the first electric push rod (43) is fixedly connected to the middle of the front side of the inner bottom of the frame (2), the connecting sleeve (44) is fixedly connected to the end part of the telescopic rod of the first electric push rod (43), the connecting sleeve (44) is connected and matched with the pressure testing assembly (5), and the first distance sensor (45) is fixedly sleeved on the upper circumference of the first electric push rod (43); the pressure testing assembly (5) comprises a second electric push rod (51), a first pressure sensor (52), a first L-shaped connecting rod (53), an LCD display screen (54) and a buzzer (55), wherein the second electric push rod (51) is fixedly connected with the inner circumference of the connecting sleeve (44) in a penetrating way, the first pressure sensor (52) is fixedly connected with the end part of a telescopic rod of the second electric push rod (51), the first L-shaped connecting rod (53) is fixedly sleeved on the upper circumference of the telescopic rod of the first electric push rod (43), the upper part of the first L-shaped connecting rod (53) is slidably sleeved on the telescopic rod of the second electric push rod (51), the buzzer (55) is installed in the middle of the upper part of the outer right side surface of the frame (2), and the LCD display screen (54) is installed on the outer left side of the frame (2) close to the reset switch (32); the detection device drives a first pressure sensor (52) to move backwards through the extension of a telescopic rod of a second electric push rod (51), the telescopic rod of the first electric push rod (43) shortens to drive a connecting sleeve (44) to move downwards, the connecting sleeve (44) drives the second electric push rod (51) to move downwards, the second electric push rod (51) moves downwards to drive the first pressure sensor (52) to move downwards, the first pressure sensor (52) moves downwards to be in contact with a steel box girder, and the first pressure sensor (52) carries out bending detection on the steel box girder; the device comprises a frame (2), and is characterized by further comprising a detection assembly (6), wherein the detection assembly (6) comprises a guide sleeve (61), a slide bar (62), a first spring (63), a first support plate (64), a fixed ring (65) and a second distance sensor (66), the guide sleeve (61) is fixedly connected in the middle of the bottom of the frame (2), the slide bar (62) is slidably arranged in the guide sleeve (61), the first support plate (64) is fixedly connected at the end part of the slide bar (62) facing the first pressure sensor (52), the first spring (63) is connected between the bottom end of the slide bar (62) and the bottom inside the frame (2), the first spring (63) is positioned in the guide sleeve (61), the fixed ring (65) is fixedly sleeved on the circumference of the outer upper part of the guide sleeve (61), and the second distance sensor (66) is arranged at the right end of the fixed ring (65); when the steel box girder is placed in the frame (2) for detection, the steel box girder is contacted with the first supporting plate (64), and then when the first pressure sensor (52) moves downwards to detect bending of the steel box girder, the steel box girder bends to drive the first supporting plate (64) to move downwards, the first supporting plate (64) moves downwards to drive the sliding rod (62) to move downwards, the first spring (63) is compressed, and the distance value detected by the second distance sensor (66) changes along with the continuous downward movement of the first supporting plate (64); the device comprises a frame (2), and is characterized by further comprising an auxiliary supporting component (7), wherein the auxiliary supporting component (7) comprises a third electric push rod (71), L-shaped supporting rods (72) and a second supporting plate (73), the third electric push rod (71) is fixedly connected between the left side and the right side of the inner bottom of the frame (2), the second supporting plate (73) is fixedly connected to the end part of a telescopic rod of the third electric push rod (71), the L-shaped supporting rods (72) are fixedly sleeved on the circumference of the upper part of the third electric push rod (71), and the bottom ends of the L-shaped supporting rods (72) are fixedly connected with the inner bottom of the frame (2); during testing, the steel box girder is placed between two second support plates (73), the telescopic rod of the third electric push rod (71) is shortened to drive the second support plates (73) to move downwards, and the second support plates (73) move downwards to drive the steel box girder to move downwards into the frame (2); the device is characterized by further comprising a limiting assembly (8), wherein the limiting assembly (8) comprises an L-shaped sliding sleeve (81), a limiting plate (82), a second spring (83) and a movable rod (84), the L-shaped sliding sleeve (81) is fixedly connected to the left side and the right side of the upper part of the outer front side surface of the frame (2), the movable rod (84) is slidably connected to the upper part of the L-shaped sliding sleeve (81) in a penetrating manner, the limiting plate (82) is fixedly connected to the rear end of the movable rod (84), the second spring (83) is connected between the front side surface of the limiting plate (82) and the upper part of the inner front side surface of the L-shaped sliding sleeve (81), and the second spring (83) is wound on the movable rod (84); the device comprises a frame (2), and is characterized by further comprising a clamping assembly (9), wherein the clamping assembly (9) comprises a guide rail (91), a sliding block (92), a third spring (93), an auxiliary roller (94), an electromagnetic lock (95), a second L-shaped connecting rod (96), a fifth spring (97) and a second pressure sensor (98), wherein the guide rail (91) is fixedly connected to the upper parts of the left side and the right side of the frame (2) in a symmetrical manner, the sliding block (92) is sleeved on the guide rail (91) in a sliding manner, the third spring (93) is connected between the outer side of the sliding block (92) and the inside of the frame (2), the electromagnetic lock (95) is mounted on the inner side of the sliding block (92), the auxiliary roller (94) is rotatably connected between the middle parts of the inner side surfaces of the sliding blocks (92) at the front side and the rear side, the second L-shaped connecting rod (96) is sleeved on the circumference of a telescopic rod of the first electric push rod (43), the fifth spring (97) is connected between the outer top of the second L-shaped connecting rod (96) and the first L-shaped connecting rod (53), the fifth spring (97) is wound on the first electric push rod (43) in a sliding manner, and the telescopic rod is mounted on the circumference of the second electric push rod (98) near the outer bottom of the first electric push rod (96) and is matched with the second outer bottom (98); after the detection device is electrified, the second pressure sensor (98) starts to work, when the second supporting plate (73) moves downwards to drive the steel box girder to move downwards, the steel box girder moves downwards to be in contact with the auxiliary roller (94), the steel box girder moves downwards to drive the auxiliary roller (94) to move outwards, the auxiliary roller (94) moves outwards to drive the sliding block (92) to move outwards, the third spring (93) is compressed, when the steel box girder continues to move downwards and does not contact with the auxiliary roller (94), the sliding block (92) moves inwards to drive the auxiliary roller (94) to move inwards to reset due to the action of the third spring (93), the sliding block (92) drives the electromagnetic lock (95) to contact with the inner wall of the steel box girder, and then when the telescopic rod of the first electric push rod (43) is shortened, the telescopic rod of the first electric push rod (43) also drives the first L-shaped connecting rod (53) to move downwards, the second L-shaped connecting rod (96) is driven by the fifth spring (97), the second L-shaped connecting rod (96) moves downwards, when the second L-shaped connecting rod (96) moves downwards to be in contact with the second pressure sensor (98), the second electromagnetic lock (95) is controlled to stop to move, a signal is sent by the second electromagnetic lock (95) to the second electromagnetic lock (98) to stop to act, and the second electromagnetic lock (95) is controlled to move downwards, the first L-shaped link (53) moves downward such that the fifth spring (97) is compressed.
2. The steel box girder bending performance detection device for road and bridge construction according to claim 1, further comprising a control box (3), wherein the control box (3) is installed on one side outside the frame (2), a switch power supply, a power supply module and a control module are arranged in the control box (3), the switch power supply supplies power to the whole detection device, an output end of the switch power supply and the power supply module are electrically connected, a power supply main switch is connected to an output end of the power supply module through a circuit, the power supply module and the control module are electrically connected, a DS1302 clock circuit and a 24C02 circuit are connected to the control module, a starting switch (31), a reset switch (32), a first distance sensor (45), a second distance sensor (66), a first pressure sensor (52), a second pressure sensor (98), an LCD display screen (54) and a buzzer (55) are electrically connected to the control module, and a first electric push rod (43), a second electric push rod (51), a third electric push rod (71) and an electromagnetic lock (95) are connected to the control module through peripheral circuits.
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