CN113215976A - Bridge detection device suitable for load detection of girder - Google Patents
Bridge detection device suitable for load detection of girder Download PDFInfo
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- CN113215976A CN113215976A CN202110443920.0A CN202110443920A CN113215976A CN 113215976 A CN113215976 A CN 113215976A CN 202110443920 A CN202110443920 A CN 202110443920A CN 113215976 A CN113215976 A CN 113215976A
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- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000004804 winding Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000012360 testing method Methods 0.000 description 8
- 210000003781 tooth socket Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a bridge detection device suitable for load detection of a main beam, which comprises a vehicle body, wherein supporting mechanisms are arranged on two sides of the vehicle body, a cavity A is formed in one side of the top of the vehicle body, a transmission device is arranged in the cavity A, and a turntable is fixedly arranged at the top end of the transmission device through the cavity A. According to the invention, the lifting mechanism is arranged to drive the rectangular sleeve rod to lift, the lifting mechanism is arranged to drive the transverse plate to lift, the vibration pickup arranged at the top end of the transverse plate is enabled to be in contact with the bottom end of the bridge, the servo motor B is arranged to rotate to drive the second bevel gear to rotate, the second bevel gear is meshed with the first bevel gear, so that the positive and negative screw rods are driven to rotate, the slider is driven to move through the rotation of the positive and negative screw rods, the two side plates are driven to move through the movement of the slider, the strain sensors arranged on the side plates are tightly attached to the side surfaces of the bridge trough, and the accuracy of detection data of the bridge in the dynamic load detection process is effectively ensured.
Description
Technical Field
The invention relates to the technical field of bridges, in particular to a bridge detection device suitable for load detection of a main beam.
Background
The bridge is generally a structure which is erected on rivers, lakes and seas and allows vehicles, pedestrians and the like to smoothly pass through. In order to adapt to the modern high-speed developed traffic industry, bridges are also extended to be constructed to span mountain stream, unfavorable geology or meet other traffic needs, so that the buildings are convenient to pass. The bridge generally comprises an upper structure, a lower structure, a support and an auxiliary structure, wherein the upper structure is also called a bridge span structure and is a main structure for spanning obstacles; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting positions of the bridge span structure and the bridge pier or the bridge abutment; the auxiliary structures refer to bridge end butt straps, tapered revetments, diversion works and the like.
At present bridge is at the in-process that detects, generally carries out dynamic load and static load to the bridge and detects, and the unable sensor of guaranteeing of current in-process is closely laminated with the bridge outer wall, can't guarantee the stability of automobile body simultaneously in dynamic load test process to influence bridge measured data's accuracy, consequently need design a bridge detection device that is applicable to the load detection of girder and uses.
Disclosure of Invention
The invention aims to provide a bridge detection device suitable for load detection of a main beam, and aims to solve the problems that the accuracy of bridge measurement data is influenced because a sensor cannot be tightly attached to the outer wall of a bridge in the detection process of the conventional bridge and the stability of a vehicle body cannot be ensured in the dynamic load test process.
In order to achieve the purpose, the invention provides a bridge detection device for detecting the load of a main beam, which comprises a vehicle body, wherein supporting mechanisms are arranged on two sides of the vehicle body, a vertical cavity A is formed in one side of the vehicle body close to the top of the vehicle body, a transmission device is arranged in the cavity A, a rotary disc is fixedly arranged at the top end of the transmission device through the cavity A, a fixed seat is fixedly arranged at the top end of the rotary disc through a screw, rectangular casing sleeves are fixedly arranged on two sides of the top end of the fixed seat close to the supporting mechanisms, one side of each rectangular casing sleeve, which faces the middle part of the vehicle body, is in a half-opening shape, rectangular sleeve rods are sleeved and connected in the two rectangular casing sleeves, a lifting mechanism is fixedly arranged between each rectangular sleeve rod and the rectangular casing sleeve, and transverse plates are fixedly arranged at the top ends of the two rectangular sleeve rods, the mid-mounting of diaphragm has the vibration pickup, the internally mounted of diaphragm has moving mechanism, moving mechanism's removal end fixed mounting has the curb plate, the curb plate with there is preset inclination, two between the diaphragm the equal fixed mounting in middle part of curb plate has the inductor of meeting an emergency, the output of inductor of meeting an emergency and vibration pickup all is connected with the data line, data line and PLC controller electric connection.
According to a preferred technical scheme, the supporting mechanism comprises four cross rods, four electric hydraulic cylinders and four base plates, slots are formed in two sides, close to the supporting mechanism, of the vehicle body, cross rods are connected inside the four slots in an inserting mode, the electric hydraulic cylinders are fixedly installed on one sides of the bottom ends of the four cross rods, the base plates are fixedly installed at telescopic ends of the four electric hydraulic cylinders, and the telescopic mechanisms are arranged among the four cross rods.
As a preferred technical scheme, the telescopic mechanism comprises two connecting shafts, two meshing gears, two transmission gears, a chain and a servo motor D, a cavity B is formed in the vehicle body close to the transverse rod, the two sides of the bottom end of the cavity B are rotatably connected with the connecting shafts, the transmission gears and the meshing gears are sleeved on the surfaces of the two connecting shafts, the chain is connected between the two transmission gears in a transmission mode, the servo motor D is installed at the bottom of the cavity B, an output shaft of the servo motor D is fixedly connected with one end of the connecting shaft at an aligned position, grooves are formed in one ends of the four transverse rods, tooth sockets are formed in one side of each groove, and the meshing gears are in meshing connection with the two tooth sockets at the aligned position.
As a preferred technical scheme, the end heads of one side of the two aligned transverse rods are fixedly provided with limiting blocks B, the groove walls of the other side of the two aligned grooves are provided with limiting grooves B, and the limiting blocks B are connected with the limiting grooves B in a sliding mode.
As a preferred technical scheme of the invention, the transmission device comprises a rotating shaft, a worm wheel, a worm and a servo motor C, the middle part of the cavity a is vertically connected with the rotating shaft, the worm wheel is sleeved in the middle part of the rotating shaft, the worm is rotatably connected with the two side cavity walls of the cavity a, the worm is meshed with the worm wheel, an installation groove is formed in one side cavity wall of the cavity a close to the end face of the worm, the servo motor C is fixedly installed inside the installation groove, an output shaft of the servo motor C is fixedly connected with one end of the worm, and one end of the rotating shaft penetrates through the cavity a and is fixedly connected with the center of the bottom end of the rotary table.
As a preferred technical scheme of the invention, the lifting mechanism comprises a transmission shaft, two winding wheels, two steel wire ropes, two limiting blocks A, two fixed pulleys and a servo motor A, the transmission shaft is rotatably connected between the two rectangular casing shells, winding wheels are sleeved at two ends of the transmission shaft, a steel wire rope is wound and connected between the two winding wheels, limiting grooves A are formed in one side of the inner wall of each rectangular sleeve, fixed pulleys are fixedly mounted at the tops of the two limiting grooves A, limiting blocks A are connected inside the two limiting grooves A in a sliding mode, one sides of the two limiting blocks A are fixedly connected with the bottoms of the corresponding rectangular sleeve rods, the two steel wire ropes are fixedly connected with the top ends of the corresponding limiting blocks A by bypassing the fixed pulleys, one side fixed mounting of one of them rectangle cover shell has servo motor A, servo motor A's output shaft and the one end fixed connection of transmission shaft.
As a preferred technical scheme of the invention, the moving mechanism comprises a positive and negative screw rod, two sliding blocks, a first helical gear, a second helical gear and a servo motor B, sliding grooves are formed in two sides of the top end of the transverse plate, the sliding blocks are connected inside the two sliding grooves in a sliding manner, the top ends of the two sliding blocks are fixedly connected with the bottom end of the side plate, the positive and negative screw rod is rotatably connected between the two sliding grooves, two ends of the positive and negative screw rod are in threaded connection with the middle part of the corresponding sliding block, the first helical gear is sleeved in the middle part of the positive and negative screw rod, the servo motor B is fixedly installed in the middle part of the bottom end of the transverse plate, a second helical gear is fixedly installed on an output shaft of the servo motor B, and the second helical gear is in meshed connection with the first helical gear.
As a preferable technical scheme of the invention, two sides of the opening of each rectangular casing close to the casing are fixedly provided with a fixing frame, and the bottom ends of the four fixing frames are fixedly connected with the top end of the fixing seat.
As a preferred technical solution of the present invention, the PLC controller is electrically connected to the electric hydraulic cylinder, the servo motor a, the servo motor B, the servo motor C, and the servo motor D, respectively.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the bridge detection device for detecting the load of the girder, the lifting mechanism is arranged to drive the rectangular sleeve rod to lift, the rectangular sleeve rod is driven to lift, the transverse plate is driven to lift by the lifting of the rectangular sleeve rod, the vibration pickup arranged at the top end of the transverse plate is in contact with the bottom end of the bridge, the servo motor B is arranged to rotate and drive the second bevel gear to rotate, the second bevel gear is meshed with the first bevel gear, so that the positive and negative screw rods are driven to rotate, the slider is driven to move by the rotation of the positive and negative screw rods, the two side plates are driven to move by the movement of the slider, the strain sensors arranged on the side plates are tightly attached to the side faces of the bridge groove, and the accuracy of detection data of the bridge in the dynamic load detection process is effectively guaranteed.
2. According to the bridge detection device suitable for detecting the load of the main beam, the servo motor D rotates to drive the connecting shafts to rotate, the two connecting shafts are in transmission connection with the chain through the transmission gears, so that the two meshing gears are driven to rotate, the meshing gears rotate to drive the cross rods to stretch and retract, the electric hydraulic cylinders arranged at the corners of the bottom ends of the cross rods drive the chassis to lift, the chassis is made to be in contact with the ground, the stability of a vehicle body in the bridge detection process is effectively guaranteed, and the bridge detection is prevented from being influenced by the shaking of the vehicle body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic partial structure diagram of an embodiment of the present invention;
FIG. 3 is a schematic view of a vehicle body structure according to an embodiment of the present invention;
FIG. 4 is a schematic view of a worm gear and worm engagement structure according to an embodiment of the present invention;
FIG. 5 is a schematic view of a rectangular case structure according to an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at A in accordance with an embodiment of the present invention;
FIG. 7 is a cross sectional view of the cross plate in an embodiment of the present invention;
FIG. 8 is a schematic view of the internal structure of the cavity B in one embodiment of the present invention;
FIG. 9 is a cross bar configuration in accordance with an embodiment of the present invention;
FIG. 10 is a schematic view of a meshing structure of a transmission gear and a chain according to an embodiment of the present invention.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
The reference numbers illustrate:
1. a vehicle body; 2. a PLC controller; 3. a cross bar; 4. an electric hydraulic cylinder; 5. a chassis; 6. a turntable; 7. a fixed seat; 8. a fixed mount; 9. a drive shaft; 10. a servo motor A; 11. a rectangular casing; 12. a rectangular loop bar; 13. a transverse plate; 14. a chute; 15. a side plate; 16. a strain sensor; 17. a positive and negative screw rod; 18. a vibration pickup; 19. a servo motor B; 20. a data line; 21. a rotating shaft; 22. a cavity A; 23. a servo motor C; 24. a worm gear; 25. a worm; 26. a limiting groove A; 27. a fixed pulley; 28. a wire rope; 29. a limiting block A; 30. a winding wheel; 31. a slider; 32. a first helical gear; 33. a second helical gear; 34. a cavity B; 35. a limiting groove B; 36. a limiting block B; 37. a meshing gear; 38. a tooth socket; 39. a chain; 40. a transmission gear; 41. a servo motor D; 42. and (7) connecting the shafts.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 10, the present invention provides a bridge detection device for detecting a load of a main beam, which has a technical scheme:
according to the drawings of fig. 1-10, the vehicle comprises a vehicle body 1, supporting mechanisms are installed on two sides of the vehicle body 1, a vertical cavity a22 is formed in one side of the vehicle body 1 close to the top of the vehicle body, a transmission device is installed inside the cavity a22, a rotary table 6 is fixedly installed on the top end of the transmission device through a cavity a22, a fixed seat 7 is fixedly installed on the top end of the rotary table 6 through a screw, rectangular sleeve cases 11 are fixedly installed on two sides of the top end of the fixed seat 7 close to the supporting mechanisms, one side of each rectangular sleeve case 11 facing the middle of the vehicle body is semi-open, rectangular sleeve rods 12 are sleeved inside the two rectangular sleeve cases 11, a lifting mechanism is fixedly installed between the rectangular sleeve rods 12 and the rectangular sleeve cases 11, transverse plates 13 are fixedly installed on the top ends of the two rectangular sleeve rods 12, vibration pickers 18 are installed in the middle parts of the top ends of the transverse plates 13, and a moving mechanism is installed inside the transverse plates 13, moving mechanism's removal end fixed mounting has curb plate 15, curb plate 15 with there is preset inclination between the diaphragm 13, and the equal fixed mounting in two curb plates 15 middle parts has strain inductor 16, and strain inductor 16 and the output of vibration pickup 18 all are connected with data line 20, data line 20 and 2 electric connection of PLC controller, and strain inductor 16 and vibration pickup 18 pass through data line 20 and 2 electric connection of PLC controller, are convenient for test the straining force and the vibration of bridge in the dynamic load test process, confirm the dynamic load of bridge.
According to the drawings of fig. 1, fig. 3, fig. 7 and fig. 8, the supporting mechanism comprises four cross rods 3, four electric hydraulic cylinders 4 and four chassis 5, slots are respectively arranged on two sides of the vehicle body 1 close to the supporting mechanism, the cross rods 3 are respectively inserted and connected in the four slots, the electric hydraulic cylinders 4 are fixedly arranged on one side of the bottom ends of the four cross rods 3, the chassis 5 are respectively fixedly arranged at the telescopic ends of the four electric hydraulic cylinders 4, a telescopic mechanism is arranged between the four cross rods 3, the telescopic mechanism comprises two connecting shafts 42, two meshing gears 37, two transmission gears 40, a chain 39 and a servo motor D41, a cavity B34 is arranged in the vehicle body 1 close to the cross rods 3, the two sides of the bottom end of the cavity B34 are rotatably connected with the connecting shafts 42, the transmission gears 40 and the meshing gears 37 are respectively sleeved on the surfaces of the two connecting shafts 42, the chain 39 is in transmission connection between the two transmission gears 40, a servo motor D41 is arranged at the bottom of the cavity B34, an output shaft of a servo motor D41 is fixedly connected with one end of a connecting shaft 42 at the position aligned, one end of each of four cross rods 3 is provided with a groove, one side of each groove is provided with a tooth socket 38, an engaging gear 37 is meshed with the two tooth sockets 38 at the position aligned, the end heads of one side of the two cross rods 3 at the position aligned are respectively and fixedly provided with a limiting block B36, the groove walls of the other side of the two grooves at the position aligned are respectively provided with a limiting groove B35, a limiting block B36 is in sliding connection with a limiting groove B35, the connecting shaft 42 is driven to rotate by the rotation of the servo motor D41, the two connecting shafts 42 are driven to be in transmission with a chain 39 through a transmission gear 40, so as to drive the two connecting shafts 42 to synchronously rotate, the engaging gear 37 is driven to rotate by the rotation of the engaging gear 37, the movement of the cross rods 3 is convenient for the expansion of the cross rods 3, the chassis 5 is driven to be contacted with the ground by the expansion of the electric hydraulic cylinder 4, facilitating the stabilization of the vehicle body 1 during the test.
According to the drawings of fig. 1, fig. 3 and fig. 4, the transmission device comprises a rotating shaft 21, a worm wheel 24, a worm 25 and a servo motor C23, the rotating shaft 21 is vertically connected to the middle of a cavity a22, the worm wheel 24 is sleeved on the middle of the rotating shaft 21, the worm 25 is rotatably connected to two side cavity walls of the cavity a22, the worm 25 is meshed with the worm wheel 24, a mounting groove is formed in one side cavity wall of the cavity a22 close to the end surface of the worm 25, the servo motor C23 is fixedly mounted inside the mounting groove, an output shaft of the servo motor C23 is fixedly connected with one end of the worm 25, one end of the rotating shaft 21 penetrates through the cavity a22 to be fixedly connected with the center of the bottom end of the rotary disc 6, the worm 25 is driven to rotate by the servo motor C23, the worm wheel 24 is driven to rotate by the rotation of the worm 25, the rotary disc 6 is driven to rotate by the rotation of the worm wheel 24, the fixing seat 7 is driven to rotate by the rotary disc 6, thereby driving the transverse plate 13 to rotate, the angle of the transverse plate 13 can be conveniently adjusted to form a 90-degree included angle with the bridge.
As shown in fig. 1, 2, 5 and 6, the lifting mechanism includes a transmission shaft 9, two winding wheels 30, two steel cables 28, two limit blocks a29, two fixed pulleys 27 and a servo motor a10, the transmission shaft 9 is rotatably connected between two rectangular sleeves 11, the winding wheels 30 are respectively sleeved at two ends of the transmission shaft 9, the steel cables 28 are wound between the two winding wheels 30, limit grooves a26 are respectively formed at one side of the inner walls of the two rectangular sleeves 11, the fixed pulleys 27 are respectively fixedly installed at the tops of the two limit grooves a26, the limit blocks a29 are respectively slidably connected inside the two limit grooves a26, one sides of the two limit blocks a29 are fixedly connected with the bottom of the corresponding rectangular loop bar 12, the two steel cables 28 are fixedly connected with the top ends of the corresponding limit blocks a29 by bypassing the fixed pulleys 27, the servo motor a10 is fixedly installed at one side of one of the rectangular sleeve 11, the output shaft of the servo motor a10 is fixedly connected with one end of the transmission shaft 9, the servo motor A10 rotates to drive the transmission shaft 9 to rotate, the transmission shaft 9 rotates to drive the winding wheel 30 to wind the steel wire rope 28, the steel wire rope 28 contracts to drive the limiting block A29 to lift, and the limiting block A29 lifts to drive the rectangular loop bar 12 to lift, so that the vibration pickup 18 at the center of the top end of the transverse plate 13 is attached to the bottom of the bridge, and the type of the vibration pickup 18 can be 'YD-104'.
According to the drawings of fig. 1, fig. 2 and fig. 7, the moving mechanism comprises a positive and negative screw rod 17, two sliding blocks 31, a first helical gear 32, a second helical gear 33 and a servo motor B19, sliding grooves 14 are respectively arranged on both sides of the top end of a transverse plate 13, the sliding blocks 31 are respectively connected inside the two sliding grooves 14 in a sliding manner, the top ends of the two sliding blocks 31 are fixedly connected with the bottom end of a side plate 15, the positive and negative screw rod 17 is rotatably connected between the two sliding grooves 14, both ends of the positive and negative screw rod 17 are in threaded connection with the middle part of the corresponding sliding block 31, the first helical gear 32 is sleeved on the middle part of the positive and negative screw rod 17, the servo motor B19 is fixedly installed on the middle part of the bottom end of the transverse plate 13, a second helical gear 33 is fixedly installed on an output shaft of a servo motor B19, the second helical gear 33 is in meshed connection with the first helical gear 32, the second helical gear 33 is driven to rotate by the rotation of the servo motor B19, the second helical gear 33 is meshed with the first helical gear 32 so as to drive the rotation of the positive and negative screw rod 17, rotation through positive and negative lead screw 17 drives two sliders 31 and removes, removes through slider 31 and drives curb plate 15 and remove, makes curb plate 15 and bridge side laminating, and being close to of two rectangle cover shells 11 the equal fixed mounting in opening both sides of cover shell 11 has mount 8, the bottom of four mount 8 and the top fixed connection of fixing base 7, PLC controller 2 respectively with electric hydraulic cylinder 4, servo motor A10, servo motor B19, servo motor C23, servo motor D41 electric connection, the model of PLC controller 2 can be "BR 010-11T 8X".
When the bridge detection device is used, firstly, a power supply is switched on to turn on a servo motor D41, the servo motor D41 rotates to drive a corresponding connecting shaft 42 to rotate, the two connecting shafts 42 are driven by a transmission gear 40 and a chain 39, so that the two connecting shafts 42 synchronously rotate, the connecting shafts 42 rotate to drive two meshing gears 37 to rotate, the meshing gears 37 rotate to drive the cross rod 3 to extend, the cross rod 3 is limited by a limiting block A29 in the extending process, when the bridge detection device moves to a specified distance, the electric hydraulic cylinder 4 is turned on, the electric hydraulic cylinder 4 stretches to drive the chassis 5 to stretch, so that the chassis 5 is in contact with the ground, the vehicle body 1 is fixed, and the condition that the vehicle body 1 shakes during the dynamic load test of the bridge to influence the accuracy of load test data is avoided;
then, a servo motor C23 is manually opened, the servo motor C23 rotates to drive the worm 25 to rotate, the worm 25 rotates to drive the worm wheel 24 to rotate, the worm wheel 24 rotates to drive the rotating shaft 21 to rotate, the rotating shaft 21 rotates to drive the rotating disc 6 to rotate, the rotating disc 6 rotates to drive the fixed seat 7 to rotate, the fixed seat 7 rotates to drive the transverse plate 13 to rotate, a 90-degree included angle is formed between the transverse plate 13 and the bridge, and the strain sensor 16 mounted on one side of the side plate 15 is ensured to be attached to the side face of the bridge in the later period;
only then the servo motor A10 is opened, the transmission shaft 9 is driven to rotate through the rotation of the servo motor A10, the transmission shaft 9 is driven to rotate to drive the winding wheel 30 to rotate, the steel wire rope 28 is wound through the rotation of the winding wheel 30, the limiting block A29 is driven to lift through the winding of the steel wire rope 28, the rectangular loop bar 12 is driven to lift through the lifting of the limiting block A29, the transverse plate 13 is driven to lift through the lifting of the rectangular loop bar 12, and the vibration pickup 18 at the top end of the transverse plate 13 is in contact with the bottom of the bridge;
then the servo motor B19 is turned on, the servo motor B19 rotates to drive the second bevel gear 33 to rotate, the second bevel gear 33 is meshed with the first bevel gear 32, so as to drive the positive and negative screw rod 17 to rotate, the two sliding blocks 31 are driven to move through the rotation of the positive and negative screw rod 17, the sliding blocks 31 move to drive the side plate 15 to move, so that the strain sensor 16 which is arranged on the side surface of the side plate 15 and can be 11 is attached to the side surface of the bridge, then when the vehicle passes through the bridge, the bridge power test data are transmitted to the PLC 2 through the strain sensor 16 and the vibration pickup 18 to be processed and displayed, and the bridge detection is completed.
In the description of the present invention, it is to be understood that the ease of description and simplicity of description are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and is not to be considered limiting.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The bridge detection device comprises a vehicle body (1) and is characterized in that supporting mechanisms are mounted on two sides of the vehicle body (1), a vertical cavity A (22) is formed in one side, close to the top of the vehicle body, of the vehicle body (1), a transmission device is mounted inside the cavity A (22), a turntable (6) is fixedly mounted at the top end of the transmission device through the cavity A (22), a fixing seat (7) is fixedly mounted at the top end of the turntable (6) through screws, rectangular casing sleeves (11) are fixedly mounted on two sides, close to the supporting mechanisms, of the top end of the fixing seat (7), the rectangular casing sleeves (11) are semi-open towards one side of the middle of the vehicle body, rectangular casing rods (12) are connected to the insides of the two rectangular casing sleeves (11) in a sleeved mode, and a lifting mechanism is fixedly mounted between the rectangular casing rods (12) and the rectangular casing sleeves (11), two the equal fixed mounting in top of rectangle loop bar (12) has diaphragm (13), the mid-mounting of diaphragm (13) has vibration pickup (18), the internally mounted of diaphragm (13) has moving mechanism, moving mechanism's removal end fixed mounting has curb plate (15), curb plate (15) with there is preset inclination between diaphragm (13), two the equal fixed mounting in middle part of curb plate (15) has strain inductor (16), the output of strain inductor (16) and vibration pickup (18) all is connected with data line (20), data line (20) and PLC controller (2) electric connection.
2. The bridge detection device for detecting the load of the main beam according to claim 1, wherein: the supporting mechanism comprises four cross rods (3), four electric hydraulic cylinders (4) and four chassis (5), the automobile body (1) is close to the two sides of the supporting mechanism are provided with slots, four slots are formed in the inner portions of the slots, the cross rods (3) and the four slots are alternately arranged inside the slots, one side of the bottom end of each cross rod (3) is fixedly provided with the electric hydraulic cylinders (4) and the four telescopic mechanisms are arranged between the cross rods (3), and the chassis (5) and the four telescopic ends of the electric hydraulic cylinders (4) are fixedly provided with the chassis (5).
3. The bridge detection device for detecting the load of the main beam according to claim 2, wherein: the telescopic mechanism comprises two connecting shafts (42), two meshing gears (37), two transmission gears (40), a chain (39) and a servo motor D (41), a cavity B (34) is arranged in the vehicle body (1) and close to the cross bar (3), two sides of the bottom end of the cavity B (34) are rotatably connected with connecting shafts (42), the surfaces of the two connecting shafts (42) are respectively sleeved with a transmission gear (40) and a meshing gear (37), a chain (39) is connected between the two transmission gears (40) in a transmission way, a servo motor D (41) is arranged at the bottom of the cavity B (34), an output shaft of the servo motor D (41) is fixedly connected with one end of a connecting shaft (42) at the alignment position, one end of each of the four cross rods (3) is provided with a groove, tooth grooves (38) are formed in one side of each groove, and the meshing gear (37) is in meshing connection with the two tooth grooves (38) which are aligned in position.
4. The bridge detection device for detecting the load of the main beam according to claim 3, wherein: the end of one side of the cross rod (3) is fixedly provided with a limiting block B (36), the other side of the groove is provided with a limiting groove B (35), and the limiting block B (36) is connected with the limiting groove B (35) in a sliding manner.
5. The bridge detection device for detecting the load of the main beam according to claim 1, wherein: transmission includes pivot (21), worm wheel (24), worm (25) and servo motor C (23), the middle part of cavity A (22) is connected with pivot (21) vertically, the middle part cover of pivot (21) is equipped with worm wheel (24), the both sides chamber wall of cavity A (22) rotates and is connected with worm (25), worm (25) are connected with worm wheel (24) meshing, being close to of cavity A (22) the mounting groove has been seted up to one side chamber wall of worm (25) terminal surface, the inside fixed mounting of mounting groove has servo motor C (23), the output shaft of servo motor C (23) and the one end fixed connection of worm (25), the one end of pivot (21) is passed cavity A (22) and is located fixed connection with the center of carousel (6) bottom.
6. The bridge detection device for detecting the load of the main beam according to claim 1, wherein: the lifting mechanism comprises a transmission shaft (9), two winding wheels (30), two steel wire ropes (28), two limiting blocks A (29), two fixed pulleys (27) and a servo motor A (10), the transmission shaft (9) is rotatably connected between the two rectangular casing bodies (11), the winding wheels (30) are sleeved at the two ends of the transmission shaft (9), the steel wire ropes (28) are wound between the two winding wheels (30), limiting grooves A (26) are formed in one sides of the inner walls of the two rectangular casing bodies (11), the fixed pulleys (27) are fixedly mounted at the tops of the two limiting grooves A (26), the limiting blocks A (29) are slidably connected inside the two limiting grooves A (26), one sides of the two limiting blocks A (29) are fixedly connected with the bottoms of the corresponding rectangular sleeve rods (12), and the two steel wire ropes (28) are fixedly connected with the tops of the fixed pulleys (27) and the corresponding limiting blocks A (29) in a bypassing manner, one side of one of them rectangle cover (11) is fixed mounting has servo motor A (10), the output shaft of servo motor A (10) and the one end fixed connection of transmission shaft (9).
7. The bridge detection device for detecting the load of the main beam according to claim 1, wherein: the moving mechanism comprises a positive and negative screw rod (17), two sliding blocks (31), a first bevel gear (32), a second bevel gear (33) and a servo motor B (19), the two sides of the top end of the transverse plate (13) are respectively provided with a sliding chute (14), the insides of the two sliding chutes (14) are respectively connected with a sliding block (31) in a sliding way, the top ends of the two sliding blocks (31) are fixedly connected with the bottom end of the side plate (15), a positive and negative screw rod (17) is rotatably connected between the two sliding chutes (14), two ends of the positive and negative screw rods (17) are in threaded connection with the middle part of the corresponding slide block (31), a first helical gear (32) is sleeved in the middle of the positive and negative screw rod (17), a servo motor B (19) is fixedly arranged in the middle of the bottom end of the transverse plate (13), a second bevel gear (33) is fixedly arranged on an output shaft of the servo motor B (19), the second bevel gear (33) is in meshed connection with the first bevel gear (32).
8. The bridge detection device for detecting the load of the main beam according to claim 1, wherein: two be close to of rectangle cover shell (11) the equal fixed mounting in opening both sides of cover shell (11) has mount (8), four the bottom of mount (8) and the top fixed connection of fixing base (7).
9. The bridge detection device for detecting the load of the main beam according to claim 1, wherein: the PLC controller (2) is respectively electrically connected with the electric hydraulic cylinder (4), the servo motor A (10), the servo motor B (19), the servo motor C (23) and the servo motor D (41).
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| CN202110443920.0A CN113215976B (en) | 2021-04-23 | 2021-04-23 | Bridge detection device suitable for load detection of girder |
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| CN202110443920.0A CN113215976B (en) | 2021-04-23 | 2021-04-23 | Bridge detection device suitable for load detection of girder |
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| CN113215976B CN113215976B (en) | 2024-06-14 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112095577A (en) * | 2020-09-23 | 2020-12-18 | 温州源铭振跃科技有限公司 | A ramming device that vibrates for road construction |
| CN112482750A (en) * | 2020-11-04 | 2021-03-12 | 金章明 | Support piece for mounting beam aluminum die |
| CN212771932U (en) * | 2020-07-28 | 2021-03-23 | 惠州市天堃道路桥梁工程检测有限公司 | Auxiliary device for bridge load test detection |
| CN214939263U (en) * | 2021-04-23 | 2021-11-30 | 湖南省交通建设质量监督检测有限公司 | Bridge detection device suitable for load detection of girder |
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2021
- 2021-04-23 CN CN202110443920.0A patent/CN113215976B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212771932U (en) * | 2020-07-28 | 2021-03-23 | 惠州市天堃道路桥梁工程检测有限公司 | Auxiliary device for bridge load test detection |
| CN112095577A (en) * | 2020-09-23 | 2020-12-18 | 温州源铭振跃科技有限公司 | A ramming device that vibrates for road construction |
| CN112482750A (en) * | 2020-11-04 | 2021-03-12 | 金章明 | Support piece for mounting beam aluminum die |
| CN214939263U (en) * | 2021-04-23 | 2021-11-30 | 湖南省交通建设质量监督检测有限公司 | Bridge detection device suitable for load detection of girder |
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