CN114993149A - Bridge health monitoring system based on satellite technology - Google Patents
Bridge health monitoring system based on satellite technology Download PDFInfo
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- CN114993149A CN114993149A CN202210623596.5A CN202210623596A CN114993149A CN 114993149 A CN114993149 A CN 114993149A CN 202210623596 A CN202210623596 A CN 202210623596A CN 114993149 A CN114993149 A CN 114993149A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/24—Measuring arrangements characterised by the use of fluids for measuring the deformation in a solid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The invention discloses a bridge health monitoring system based on a satellite technology, and particularly relates to the field of bridge health monitoring. According to the invention, the first monitoring mechanism is integrally placed in the crack of the bridge, whether the second air bag expands to extrude the crack is observed, so that a worker can observe the deformed crack in time, and meanwhile, when the first monitoring mechanism is taken out, the position of the gear block is observed, so that whether the crack is displaced can be rapidly judged.
Description
Technical Field
The invention relates to the technical field of bridge health monitoring, in particular to a bridge health monitoring system based on a satellite technology.
Background
The basic connotation of bridge health monitoring is that the bridge sends out an early warning signal under special climate and traffic conditions or when the bridge operation condition is abnormal and serious through monitoring and evaluating the bridge structure condition, and provides basis and guidance for maintenance and management decision of the bridge.
The invention relates to a bridge health monitoring system based on satellite technology, which solves the problems that when a bridge crack is monitored, not only can the surface condition of the bridge be monitored, but also whether the internal part of the bridge is deformed or not and cannot be monitored, so that the health condition of the bridge is judged to be wrong, and the bridge is damaged.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a bridge health monitoring system based on a satellite technology, which can determine whether a crack is deformed or not and also determine whether the crack is displaced when the crack of the bridge is monitored, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a bridge health monitoring system based on satellite technology comprises a moving mechanism, wherein a first monitoring mechanism and a second monitoring mechanism are arranged on one side of the moving mechanism, the moving mechanism comprises a base, a supporting rod is rotatably mounted at the top of the base, a first support and a second support are arranged on the outer wall of the supporting rod, the first monitoring mechanism comprises a first mounting sleeve which is in threaded connection with one side of the second support, a rotating rod is rotatably mounted on one side of the first mounting sleeve, and a limiting block is sleeved at the central position of the outer wall of the rotating rod;
the outer wall of the rotating rod is provided with a positive thread groove and a negative thread groove which are arranged in an opposite state, the outer wall of the positive thread groove is at least meshed with two first sleeves, the outer walls of the two first sleeves are hinged with first support rods, the outer wall of the negative thread groove is at least meshed with two second sleeves, the outer walls of the two second sleeves are hinged with second support rods, the first support rods and the second support rods are arranged in a mutually hinged state, two sides of the limiting block are respectively hinged with a plurality of third support rods connected with the first support rods and the second support rods, one side of each of the first support rods and one side of each of the second support rods are provided with limiting grooves, and sliding rods connected with the third support rods are slidably mounted in the inner cavities of the limiting grooves;
the two sides of each third supporting rod are hinged with fourth supporting rods which are arranged in an inclined state, the fourth supporting rods arranged on every two third supporting rods are arranged in a mutual hinged state, a first air bag is fixedly arranged on one side of each fourth supporting rod, turning plates are fixedly arranged on the two sides of the first air bag, vent pipes communicated with the first air bag are arranged in the turning plates in a penetrating mode, and one ends of the vent pipes are communicated with the second air bag;
articulated department fixed mounting of first vaulting pole and second vaulting pole has the limiting plate, one side fixed mounting of limiting plate has the wearing pad, the equal fixed mounting of first vaulting pole and second telescopic outer wall has the gear piece, and per two the gear piece that sets up on first vaulting pole and per two second sleeves is mutual coincidence state setting on same vertical face
In a preferred embodiment, the second monitoring mechanism includes a limiting clamping plate, an electric telescopic rod is fixedly mounted inside the limiting clamping plate, one end of the electric telescopic rod is fixedly connected with a driving motor used for driving the electric telescopic rod to stretch, a pressing block is fixedly mounted at one end of the electric telescopic rod far away from the driving motor, clamping sleeves are fixedly mounted on two sides of the limiting clamping plate, a bearing frame is inserted into the clamping sleeves, a measuring plate which is vertically arranged is fixedly mounted at the bottom of the bearing frame, a pressure sensor is fixedly mounted on the measuring plate, and a bracket connected with the pressing block is rotatably mounted on one side of the bearing frame.
In a preferred embodiment, the second monitoring mechanism further comprises a second mounting sleeve rotatably connected to one side of the first support, a towing bar frame perpendicular to the second mounting sleeve is fixedly mounted at the bottom of the second mounting sleeve, the towing bar frame is fixedly mounted at the top of the driving motor, and the vertical center lines of the towing bar frame and the limiting clamping plate are arranged on the same vertical plane.
Establishing a mathematical model of the driving motor, and controlling the motor, wherein the mathematical model expression of the stator voltage of the motor is as follows:
the stator flux linkage equation is:
ψ d ＝L d i d +ψ
ψ q ＝L q i q
in the formula, # d And psi q The components of the flux linkage in the d axis and the q axis respectively; u. u d ，u q And i d ，i q Voltage and current of d axis and q axis respectively, R is stator resistance; n is p Is the number of pole pairs; omega is the mechanical angular speed of the motor; l is q And L d D-axis and q-axis inductances, psi is the permanent magnet flux linkage, and t is the integral.
The electromagnetic torque equation of the motor is as follows:
wherein, T e Is an electromagnetic moment, n p Is a polar logarithm, /) d And psi q Components of the flux linkage in the d-and q-axes, i d ，i q Current of d-axis and q-axis respectively,. psi. permanent magnet flux linkage, L s Is the inductance of the s-axis.
The mechanical angular velocity equation of the motor is as follows:
wherein, T e Is an electromagnetic torque, T L Is load torque, J is moment of inertia, b m And omega is the mechanical angular velocity of the motor, and t is the integral.
The control model is operated based on the existing theoretical basis, is easy to understand, has strong operability on motor control, provides reliable technical support for normal use of the whole bridge health detection system, and is convenient for large-scale popularization.
In a preferred embodiment, the outer wall of the drawbar frame is fixedly provided with a connecting frame which is arranged in a vertical state, the bottom of the connecting frame is fixedly connected with two cameras which are symmetrically arranged, and the top of the connecting frame is fixedly provided with a storage connected with the cameras.
In a preferred embodiment, a plurality of positioning grooves are formed in one side of the second mounting sleeve and one side of the first support, a positioning rod is inserted into an inner cavity of the second mounting sleeve, a positioning plate is fixedly mounted on one side of the positioning rod, a positioning block is fixedly mounted on one side of the positioning plate close to the second mounting sleeve, and the positioning block is inserted into an inner cavity of the positioning groove.
In a preferred embodiment, a plurality of limiting slide rails are fixedly mounted on the inner wall of the first support, a plurality of limiting slide blocks matched with the limiting slide rails are fixedly mounted on the outer wall of the positioning rod, the limiting slide blocks are slidably mounted in the inner cavities of the limiting slide rails, and a spring connected with the inner wall of the second mounting sleeve is fixedly mounted at one end of the positioning rod.
In a preferred embodiment, a plurality of universal wheels are fixedly mounted at the bottom of the support rod, and a bobbin connected with the first bracket is sleeved on the outer wall of the support rod.
In a preferred embodiment, the inner wall of the bobbin is provided with a sliding groove, and the outer wall of the supporting rod is fixedly provided with a plurality of sliding strips which are matched with the sliding groove arranged on the bobbin.
In a preferred embodiment, a rotary seat connected with a second bracket is rotatably mounted at the top of the supporting rod, and a handle is fixedly mounted on the outer wall of the second bracket.
In a preferred embodiment, the number of the first air bags is four, every two first air bags are symmetrically arranged about a vertical center line of the rotating rod, and ports of the air vent pipes communicated with one ends of every two first air bags are arranged on the same vertical plane.
The invention has the technical effects and advantages that:
according to the invention, the first monitoring mechanism is integrally placed in the crack of the bridge, whether the second air bag expands or not to extrude out of the crack is observed, and the deformed crack is observed in time, so that a worker can repair the crack in time;
the control model is operated based on the existing theoretical basis, is easy to understand, has strong operability on motor control, provides reliable technical support for normal use of the whole bridge health detection system, and is convenient for large-scale popularization.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a bottom structure diagram of the present invention.
FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention.
Fig. 4 is a schematic overall structure diagram of the first monitoring mechanism of the present invention.
FIG. 5 is an enlarged view of the portion B of FIG. 4 according to the present invention.
Fig. 6 is a schematic side view of the first monitoring mechanism according to the present invention.
FIG. 7 is an enlarged view of the portion C of FIG. 6 according to the present invention.
Fig. 8 is a schematic structural diagram of a second monitoring mechanism according to the present invention.
Fig. 9 is a structural sectional view of a second monitoring mechanism of the present invention.
FIG. 10 is an enlarged view of the structure of the portion D in FIG. 9 according to the present invention.
The reference signs are: 1 moving mechanism, 101 base, 102 supporting rod, 103 first support, 104 second support, 105 handle, 106 universal wheel, 107 bobbin, 108 slide bar, 109 swivel base, 2 first monitoring mechanism, 21 first mounting sleeve, 22 swivel rod, 23 regular thread groove, 24 reverse thread groove, 25 stopper, 26 first sleeve, 27 first stay, 28 second sleeve, 29 second stay, 210 stopper plate, 211 wear pad, 212 third stay, 213 stopper groove, 214 slide rod, 215 fourth stay, 216 first air bag, 217 swivel plate, 218 vent pipe, 219 second air bag, 220 gear block, 3 second monitoring mechanism, 31 second mounting sleeve, 32 drag rod rack, 33 stopper clamp plate, 34 electric telescopic rod, 35 driving motor, 36, 37 support rack, 38 jacket plate, 39 pressure sensor, 310 press block, 311 bracket, 312 engagement rack, 313 camera, 314 positioning groove storage, 315 stopper slide rail, 316 positioning groove, 317 positioning rods, 318 positioning plates, 319 positioning blocks, 320 limiting sliding blocks and 321 springs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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 the attached drawings 1-10 of the specification, the bridge health monitoring system based on the satellite technology in one embodiment of the invention comprises a moving mechanism 1, wherein a first monitoring mechanism 2 and a second monitoring mechanism 3 are arranged on one side of the moving mechanism 1, the first monitoring mechanism 2 is used for detecting the deformation condition of a gap, the second monitoring mechanism 3 is used for detecting the trend size of the bridge deck gap, the first monitoring mechanism 2 and the second monitoring mechanism 3 are arranged on the moving mechanism 1, the two can be collected together, and the first monitoring mechanism 2 can be rapidly moved on the bridge floor during detection by the moving mechanism 1, so that the whole collection is convenient, and multiple functional, it is very convenient to operate, the in-service use of being more convenient for, combine fig. 2 to show, moving mechanism 1 includes base 101, and the top of base 101 is rotated and is installed bracing piece 102, and the outer wall of bracing piece 102 is equipped with first support 103 and second support 104.
Referring to fig. 4, the first monitoring mechanism 2 includes a first mounting sleeve 21 screwed on one side of the second bracket 104, the second bracket 104 is screwed into the inner cavity of the first mounting sleeve 21, so that the first mounting sleeve 21 and the second bracket 104 can be disassembled more conveniently, when needed, the first mounting sleeve 21 is turned out from the outer wall knob of the second bracket 104, and then disassembled, one side of the first mounting sleeve 21 is rotatably mounted with a rotating rod 22, a central position of the outer wall of the rotating rod 22 is sleeved with a limiting block 25, the limiting block 25 divides the rotating rod 22 into an upper part and a lower part, and the outer walls of the upper part and the lower part of the rotating rod 22 are respectively provided with a positive thread groove 23 and a negative thread groove 24 which are arranged in an opposite state, the outer wall of the positive thread groove 23 is at least engaged with two first sleeves 26, the outer wall of the negative thread groove 24 is at least engaged with two second sleeves 28, when the rotating rod 22 rotates clockwise, the first sleeve 26 and the second sleeve 28 respectively installed on the outer walls of the forward thread groove 23 and the reverse thread groove 24 can synchronously move towards the direction close to the limit block 25, when the rotating rod 22 rotates counterclockwise, the first sleeve 26 and the second sleeve 28 respectively installed on the outer walls of the forward thread groove 23 and the reverse thread groove 24 can simultaneously move towards the direction away from the limit block 25, the outer walls of the two first sleeves 26 are hinged with the first support rod 27, the outer walls of the two second sleeves 28 are hinged with the second support rod 29, the first support rod 27 and the second support rod 29 are arranged in a mutually hinged state, when the first sleeve 26 and the second sleeve 28 move on the outer wall of the rotating rod 22, the angle between the first support rod 27 and the second support rod 29 is gradually changed, so that the distance between the two first support rods 27 and the two second support rods 29 is changed, when the first sleeve 26 and the second sleeve 28 approach towards the center, the angle between the first support rod 27 and the second support rod 29 is gradually reduced, the distance between the two first support rods 27 and the two second support rods 29 is gradually increased, when the first sleeve 26 and the second sleeve 28 move from the position close to the center to the direction away from the limit block 25, the angle between the first support rod 27 and the second support rod 29 is gradually increased, the distance between the two first support rods 27 and the two second support rods 29 is gradually reduced, so that when the rotating rod 22 is placed in the gap, the first support rod 27 and the second support rod 29 can be firmly supported in the gap by adjusting the distance between the two first support rods 27 and the two second support rods 29, the two sides of the limit block 25 are respectively hinged with a plurality of third support rods 212 connected with the first support rod 27 and the second support rods 29, the third support rods 212 are arranged for supporting the first support rods 27 and the second support rods 29, wherein, limiting grooves 213 are formed in one sides of the first supporting rods 27 and the second supporting rods 29, sliding rods 214 connected with the third supporting rods 212 are slidably mounted in inner cavities of the limiting grooves 213, when the distance between the two first supporting rods 27 and the two second supporting rods 29 is increased, the third supporting rods 212 gradually tend to move in a horizontal state, so that the sliding rods 214 move towards the connecting positions close to the first supporting rods 27 and the second supporting rods 29, and when the distance between the two first supporting rods 27 and the two second supporting rods 29 is reduced, the third supporting rods 212 gradually tend to move in an inclined state, so that the sliding rods 214 move towards the connecting direction far away from the first supporting rods 27 and the second supporting rods 29.
Meanwhile, as shown in fig. 5, the two sides of the third brace 212 are hinged with the fourth braces 215 arranged in an inclined state, the fourth braces 215 arranged on every two third braces 212 are arranged in a mutually hinged state, one side of each fourth brace 215 is fixedly provided with the first air bag 216, the two sides of the first air bag 216 are fixedly provided with the turning plate 217, the inside of the turning plate 217 is penetrated with the air pipe 218 communicated with the first air bag 216, one end of the air pipe 218 is communicated with the second air bag 219, when the two third braces 212 change along with the angle of the distance between the first brace 27 and the second brace 29, the angle between the two fourth braces 215 changes, so that when the turning rod 22 is integrally placed in the gap of the bridge, the distance between the two first braces 27 and the two second braces 29 is increased by rotating the turning rod 22, and the third braces 212 gradually tend to a horizontal state and are supported between the limiting block 25 and the first braces 27, Between the second vaulting pole 29, make the junction of first vaulting pole 27 and second vaulting pole 29 laminate firmly behind the inner wall in gap, can stop rotatory bull stick 22, make first monitoring mechanism 2 whole put into detect inside the gap, when the inside deformation that takes place in gap, can be to first vaulting pole 27, second vaulting pole 29, third vaulting pole 212 and fourth vaulting pole 215 extrude, when fourth vaulting pole 215 receives the extrusion and takes place to warp, can extrude first gasbag 216, thereby make the gas of first gasbag 216 inner chamber transmit to inside second gasbag 219 via breather pipe 218, make outside second gasbag 219 take place to expand and extrude the gap, thereby be convenient for the staff in time to see, thereby can remedy the gap.
Further, as shown in fig. 5 and 7, a limiting plate 210 is fixedly installed at the hinged position of the first support rod 27 and the second support rod 29, a wear pad 211 is fixedly installed at one side of the limiting plate 210, when the first support rod 27 and the second support rod 29 are supported to the maximum state along with the internal width of the gap, the limiting plate 210 will abut against the inner wall of the gap, and the friction force between the limiting plate and the gap is increased by the wear pad 211, so that the first monitoring mechanism 2 cannot rotate and move in the gap as a whole, gear blocks 220 are fixedly installed on the outer walls of the first support rod 27 and the second sleeve 28, when the first monitoring mechanism 2 is installed in the gap as a whole, the gear blocks 220 installed on every two first support rods 27 and every two second sleeves 28 are arranged in a mutually overlapped state on the same vertical plane, and when the two sides of the gap are displaced asynchronously, the limiting plate 210 and the wear pad 211 abutting against different inner walls will be displaced up and down along with the wall of the gap, the corresponding first support rods 27 and the corresponding second support rods 29 are driven to rotate on the outer wall of the rotating rod 22, so that the gear blocks 220 arranged on every two first support rods 27 and every two second sleeves 28 are staggered, and when the first monitoring mechanism 2 is taken out, the positions of the gear blocks 220 are observed, and whether the inside of the gap is displaced up and down can be found.
In specific implementation, the rotating rod 22 is firstly put into the gap of the bridge, the distance between the two first support rods 27 and the two second support rods 29 is changed by rotating the rotating rod 22, so as to be suitable for gaps with different widths, then the rotating rod 22 is stopped rotating after the limiting plate 210 and the wear-resistant pad 211 are attached to the inner wall of the gap, when the gap is deformed, the first support rod 27, the second support rod 29, the third support rod 212 and the fourth support rod 215 are extruded, when the fourth support rod 215 is extruded and deformed, the first air bag 216 is extruded, so that the gas in the inner cavity of the first air bag 216 is transmitted to the inside of the second air bag 219 through the vent pipe 218, the second air bag 219 is expanded and extruded out of the gap, so that a worker can see the gap in time, and meanwhile, the limiting plate 210 and the wear-resistant pad 211 which are abutted against the different inner walls of the gap are changed along with the up-and-down displacement of the gap wall, the corresponding first support rod 27 and the second support rod 29 are driven to rotate on the outer wall of the rotating rod 22, and when the first monitoring mechanism 2 is taken out, the position of the gear block 220 is observed, so that whether the inside of the gap is displaced up and down or not can be found.
Further, as shown in fig. 8-9, the second monitoring mechanism 3 includes a limiting clamp plate 33, an electric telescopic rod 34 is fixedly installed inside the limiting clamp plate 33, one end of the electric telescopic rod 34 is fixedly connected with a driving motor 35 for driving the electric telescopic rod to extend and retract, one end of the electric telescopic rod 34 far away from the driving motor 35 is fixedly installed with a pressing block 310, two sides of the limiting clamp plate 33 are fixedly installed with clamping sleeves 36, a supporting frame 37 is inserted inside the clamping sleeves 36, a measuring plate 38 vertically arranged is fixedly installed at the bottom of the supporting frame 37, a pressure sensor 39 is fixedly installed on the measuring plate 38, and a bracket 311 connected with the pressing block 310 is rotatably installed at one side of the supporting frame 37, in a normal state, the two measuring plates 38 are attached together, and the electric telescopic rod 34 extends to be in a longest state, when a long gap is found on the bridge floor, by extending the measuring plate 38 into the gap, then the electric telescopic rod 34 is contracted upwards by controlling the driving motor 35, the bearing frame 37 moves upwards in the inner cavity of the jacket 36, the distance between the two measuring plates 38 is enlarged, the electric telescopic rod 34 is stopped when the electric telescopic rod abuts against the inner wall of the gap, the width of the gap is measured by the pressure sensor 39 on the measuring plate 38, the second monitoring mechanism 3 further comprises a second mounting sleeve 31 which is rotatably connected to one side of the first support 103, the bottom of the second mounting sleeve 31 is fixedly provided with a towing rod frame 32 which is perpendicular to the second mounting sleeve, the towing rod frame 32 is fixedly arranged at the top of the driving motor 35, the vertical center lines of the towing rod frame 32 and the limiting clamping plate 33 are arranged on the same vertical plane, and when the bridge is used, the measuring plates 38 can move along the gap track of the bridge floor by holding the towing rod frame 32 by hands;
establishing a mathematical model of the driving motor, and controlling the motor, wherein the mathematical model expression of the stator voltage of the motor is as follows:
the stator flux linkage equation is:
ψ d ＝L d i d +ψ
ψ q ＝L q i q
in the formula, # d And psi q The components of the flux linkage in the d axis and the q axis respectively; u. of d ，u q And i d ，i q Voltage and current of d axis and q axis respectively, R is stator resistance; n is p Is a pole pair number; omega is the mechanical angular speed of the motor; l is q And L d D-axis and q-axis inductances, psi is the permanent magnet flux linkage, and t is the integral.
The electromagnetic torque equation of the motor is as follows:
wherein, T e Is an electromagnetic moment, n p Is a logarithm of poles,. psi d And psi q Components of the flux linkage in the d-and q-axes, i d ，i q Current of d-axis and q-axis respectively,. psi. permanent magnet flux linkage, L s Is the inductance of the s-axis.
The mechanical angular velocity equation of the motor is as follows:
wherein, T e Is an electromagnetic torque, T L Is load torque, J is moment of inertia, b m And omega is the mechanical angular velocity of the motor.
The control model is operated based on the existing theoretical basis, is easy to understand, has strong operability on motor control, provides reliable technical support for normal use of the whole bridge health detection system, and is convenient for large-scale popularization.
Meanwhile, the outer wall of the towing rod frame 32 is fixedly provided with a connecting frame 312 which is arranged in a vertical state, the bottom of the connecting frame 312 is fixedly connected with two cameras 313 which are symmetrically arranged, the top of the connecting frame 312 is fixedly provided with a storage 314 which is connected with the cameras 313, when the measuring plate 38 moves along a gap track, the cameras 313 shoot at the top of the bridge floor, and meanwhile, gap information is stored in the storage 314, so that workers can check and maintain subsequently.
Wherein, in order to make the second sleeve 28 measure the gaps at different positions, as shown in fig. 10, a plurality of positioning grooves 316 are disposed on one side of the second mounting sleeve 31 and one side of the first bracket 103, when the second mounting sleeve 31 is mounted on the outer wall of the first bracket 103, one end of the first bracket 103 is attached to the same surface as the second mounting sleeve 31, and the second mounting sleeve 31 is fitted with the positioning groove 316 on one side of the first bracket 103, a positioning rod 317 is inserted into the inner cavity of the second mounting sleeve 31, a positioning plate 318 is fixedly mounted on one side of the positioning rod 317, a positioning block 319 is fixedly mounted on one side of the positioning plate 318 close to the second mounting sleeve 31, the positioning block 319 is inserted into the inner cavity of the positioning groove 316, when the position of the second mounting sleeve 31 needs to be adjusted, after the second mounting sleeve 31 is rotated to a corresponding angle, the positioning block 319 is inserted into the inner cavity of the corresponding positioning groove 316, so that the angle between the first bracket 103 and the first mounting sleeve 21 is fixed, thereby it is applicable in different positions, and the gap on different inclined planes uses, and fixed mounting has a plurality of spacing slide rails 315 on the inner wall of first support 103, the outer wall fixed mounting of locating lever 317 has a plurality of spacing slider 320 identical with spacing slide rail 315, spacing slider 320 slidable mounting is at the inner chamber of spacing slide rail 315, and the one end fixed mounting of locating lever 317 has the spring 321 that is connected with the 31 inner wall of second installation cover, make second installation cover 31 when first support 103 outer wall angle regulation, combine to peg graft spacing slider 320 at corresponding spacing slide rail 315 inner chamber, can make the inside and the outer wall of second installation cover 31 carry on spacing fixedly in step.
Further, as shown in fig. 2-3, a plurality of universal wheels 106 are fixedly mounted at the bottom of the supporting rod 102, the second monitoring mechanism 3 can move more smoothly along the track of the gap by arranging the universal wheels 106, a bobbin 107 connected with the first bracket 103 is sleeved on the outer wall of the supporting rod 102, by arranging the bobbin 107, when the device is used, the supporting rod 102 is held by hand, the first bracket 103 is rotated to lift the whole position of the second monitoring mechanism 3 upwards, so that when a gap with a higher height is measured, the device can be used for measurement without an external ladder, meanwhile, a sliding groove is formed in the inner wall of the bobbin 107, a plurality of sliding strips 108 matched with the sliding groove formed in the bobbin 107 are fixedly mounted on the outer wall of the supporting rod 102, so that when the measuring direction of the second monitoring mechanism 3 needs to be adjusted, the direction of the second monitoring mechanism 3 can be changed by sliding the bobbin 107 up and down, and rotating the supporting rod 102 at the same time, similarly, the top of the supporting rod 102 is rotatably provided with a rotating seat 109 connected with the second support 104, the outer wall of the second support 104 is fixedly provided with a handle 105, the position of the second support 104 can be adjusted through the rotating seat 109, and the base 101 can be pushed to move through the handle 105, so that the use is more convenient and labor-saving.
In specific implementation, the measuring plate 38 is extended into the gap, then the driving motor 35 is controlled to enable the electric telescopic rod 34 to contract upwards, the bearing frame 37 moves upwards in the inner cavity of the jacket 36, the distance between the two measuring plates 38 is enlarged, the electric telescopic rod 34 is stopped when the electric telescopic rod collides with the inner wall of the gap, the width of the gap is measured through the pressure sensor 39 on the measuring plate 38, and the gaps with different heights can be measured by adjusting the directions of the bobbin 107 and the second mounting sleeve 31.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," "connecting," and "connecting" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be directly connected, and "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. The utility model provides a bridge health monitoring system based on satellite technology, a serial communication port, including moving mechanism (1), one side of moving mechanism (1) is equipped with first monitoring mechanism (2) and second monitoring mechanism (3), moving mechanism (1) includes base (101), the top of base (101) is rotated and is installed bracing piece (102), the outer wall of bracing piece (102) is equipped with first support (103) and second support (104), first monitoring mechanism (2) connect first installation cover (21) in second support (104) one side including the screw thread, one side of first installation cover (21) is rotated and is installed bull stick (22), the central point of bull stick (22) outer wall puts the department cover and is equipped with stopper (25).
2. The bridge health monitoring system based on satellite technology of claim 1, wherein:
the outer wall of the rotating rod (22) is provided with a positive thread groove (23) and a negative thread groove (24) which are arranged in an opposite state, at least two first sleeves (26) are meshed with the outer wall of the positive thread groove (23), and the outer walls of the two first sleeves (26) are hinged with first support rods (27), at least two second sleeves (28) are meshed with the outer wall of the reverse thread groove (24), and the outer walls of the two second sleeves (28) are hinged with second support rods (29), the first stay bar (27) and the second stay bar (29) are hinged with each other, two sides of the limiting block (25) are respectively hinged with a plurality of third support rods (212) connected with the first support rods (27) and the second support rods (29), one side of the first support rod (27) and one side of the second support rod (29) are provided with limit grooves (213), and a sliding rod (214) connected with the third support rod (212) is slidably mounted in the inner cavity of the limiting groove (213).
3. The bridge health monitoring system based on satellite technology according to claim 2, characterized in that: fourth support rods (215) which are arranged in an inclined state are hinged to two sides of each third support rod (212), the fourth support rods (215) arranged on every two third support rods (212) are arranged in a mutually hinged state, a first air bag (216) is fixedly installed on one side of each fourth support rod (215), turning plates (217) are fixedly installed on two sides of the first air bag (216), air pipes (218) communicated with the first air bag (216) penetrate through the turning plates (217), and one ends of the air pipes (218) are communicated with a second air bag (219); a limiting plate (210) is fixedly mounted at the hinged position of the first supporting rod (27) and the second supporting rod (29), a wear-resistant pad (211) is fixedly mounted on one side of the limiting plate (210), gear blocks (220) are fixedly mounted on the outer walls of the first supporting rod (27) and the second sleeve (28), and the gear blocks (220) arranged on every two first supporting rods (27) and every two second sleeve (28) are arranged on the same vertical surface in a mutually overlapped state;
the second monitoring mechanism (3) comprises a limiting clamping plate (33), an electric telescopic rod (34) is fixedly installed inside the limiting clamping plate (33), one end of the electric telescopic rod (34) is fixedly connected with a driving motor (35) used for driving the electric telescopic rod to stretch, a pressing block (310) is fixedly installed at one end, away from the driving motor (35), of the electric telescopic rod (34), clamping sleeves (36) are fixedly installed on two sides of the limiting clamping plate (33), a bearing frame (37) is inserted into the clamping sleeves (36), a measuring plate (38) vertically arranged is fixedly installed at the bottom of the bearing frame (37), a pressure sensor (39) is fixedly installed on the measuring plate (38), and a bracket (311) connected with the pressing block (310) is rotatably installed on one side of the bearing frame (37);
the second monitoring mechanism (3) further comprises a second mounting sleeve (31) rotatably connected to one side of the first support (103), a drag rod frame (32) perpendicular to the second mounting sleeve is fixedly mounted at the bottom of the second mounting sleeve (31), the drag rod frame (32) is fixedly mounted at the top of the driving motor (35), and the vertical center lines of the drag rod frame (32) and the limiting clamp plate (33) are arranged on the same vertical plane; the outer wall of the towing rod frame (32) is fixedly provided with a connecting frame (312) which is arranged in a vertical state, the bottom of the connecting frame (312) is fixedly connected with two cameras (313) which are symmetrically arranged, and the top of the connecting frame (312) is fixedly provided with a storage (314) which is connected with the cameras (313).
4. The bridge health monitoring system based on satellite technology of claim 3, wherein: a plurality of locating grooves (316) are formed in one side of the second mounting sleeve (31) and one side of the first support (103), a locating rod (317) is inserted into an inner cavity of the second mounting sleeve (31), a locating plate (318) is fixedly mounted on one side of the locating rod (317), a locating block (319) is fixedly mounted on one side, close to the second mounting sleeve (31), of the locating plate (318), and the locating block (319) is inserted into an inner cavity of the locating groove (316).
5. The bridge health monitoring system based on satellite technology of claim 4, wherein: fixed mounting has a plurality of spacing slide rails (315) on the inner wall of first support (103), the outer wall fixed mounting of locating lever (317) has a plurality of spacing slider (320) identical with spacing slide rail (315), spacing slider (320) slidable mounting is in the inner chamber of spacing slide rail (315), just the one end fixed mounting of locating lever (317) has spring (321) that are connected with second installation cover (31) inner wall.
6. The bridge health monitoring system based on satellite technology of claim 5, wherein: the bottom of the supporting rod (102) is fixedly provided with a plurality of universal wheels (106), and the outer wall of the supporting rod (102) is sleeved with a bobbin (107) connected with the first support (103).
7. The bridge health monitoring system based on satellite technology of claim 6, wherein: the inner wall of the bobbin (107) is provided with a sliding groove, and the outer wall of the supporting rod (102) is fixedly provided with a plurality of sliding strips (108) which are matched with the sliding groove arranged on the bobbin (107).
8. The bridge health monitoring system based on satellite technology of claim 7, wherein: the top of the supporting rod (102) is rotatably provided with a rotating seat (109) connected with a second bracket (104), and the outer wall of the second bracket (104) is fixedly provided with a handle (105).
9. The bridge health monitoring system based on satellite technology of claim 8, wherein: the number of the first air bags (216) is four, every two first air bags (216) are symmetrically arranged relative to the vertical center line of the rotating rod (22), and the ports of the vent pipes (218) communicated with one ends of every two first air bags (216) are arranged on the same vertical plane.
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| CN114993149B (en) | 2023-06-27 |
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