High-speed ultrahigh bridge safety detection equipment

Abstract

The invention discloses high-speed ultrahigh bridge safety detection equipment which comprises a truss body vertically erected on one side of an ultrahigh bridge, and the upper end of the truss body and a detection vehicle on the ultrahigh bridge are installed and fixed; the guide shaft is vertically and rotatably connected to one side of the lower end face of the truss body, a transverse frame is horizontally fixed to the guide shaft, and a supporting rib is obliquely connected between the lower portion of the transverse frame and the guide shaft; the sliding seat is connected to the transverse frame in a sliding mode, a guide wheel is rotationally connected into the sliding seat, a driving motor is fixed to the sliding seat, and the output end of the driving motor is connected with the guide wheel in a transmission mode through the gear meshing effect; the grinding mechanism is mounted on one side of the upper end surface of the sliding seat; and the resiliometer detection unit is mounted on the upper end surface of the sliding seat and is positioned behind the station of the grinding mechanism.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge detection, and specifically relates to a safety detection device for high-speed and ultra-high bridges. Background Art

[0002] As an important part of modern transportation infrastructure, high-speed and ultra-high bridges undertake key tasks such as connecting cities, crossing rivers and canyons. Due to their height and technical complexity, the safety of these bridges is of crucial importance. In order to ensure the safe operation of bridges, regular inspections and maintenance must be carried out;

[0003] Currently, during the inspection and repair of elevated bridges, it mainly relies on manual visual inspection, simple tool measurement, and regular structural assessment; and using a bridge inspection vehicle as a platform for working at height has extremely high requirements for operation safety. Inspection personnel need to work in a high-altitude environment for a long time, which not only has a high labor intensity but also cannot comprehensively and systematically monitor the bridge, possibly resulting in the omission of some key parts; Therefore, it is necessary to provide a safety detection device for high-speed and ultra-high bridges to solve the problems raised in the above background art. Summary of the Invention

[0004] To achieve the above object, the present invention provides the following technical solution: A safety detection device for high-speed and ultra-high bridges, which includes:

[0005] A truss main body, vertically erected on one side of the ultra-high bridge, and the upper end of the truss main body is fixedly installed with an inspection vehicle on the ultra-high bridge;

[0006] A guide shaft, vertically rotatably connected to one side of the lower end surface of the truss main body, a cross frame is horizontally fixed on the guide shaft, and a support rib is obliquely connected between the lower part of the cross frame and the guide shaft;

[0007] A sliding seat, slidably connected to the cross frame, a guide wheel is rotatably connected inside the sliding seat, and a driving motor is fixed on the sliding seat, and the output end of the driving motor is connected and driven to the guide wheel through the meshing action of gears;

[0008] A grinding mechanism, installed on one side of the upper end surface of the sliding seat;

[0009] A rebound hammer detection unit, installed on the upper end surface of the sliding seat behind the working position of the grinding mechanism.

[0010] Further, as a preference, a control motor is fixed on the truss main body, a transmission gear is fixed on the guide shaft, and the output end of the control motor is meshed with the transmission gear through an external gear;

[0011] The rotation angle of the guide shaft is not less than 180°.

[0012] Further, as a preference, the grinding mechanism includes:

[0013] A fixed seat is fixed on the sliding seat. A central shaft is vertically rotatably connected in the fixed seat through a bearing. A driving part is arranged outside the fixed seat, and the driving part is connected and driven to the central shaft through a transmission belt;

[0014] An upper shaft disc is coaxially arranged above the fixed seat. An inner shaft is coaxially connected in the central shaft, and the upper end of the inner shaft is connected to the upper shaft disc;

[0015] A grinding plate is detachably installed on the upper shaft disc;

[0016] A toothed ring seat is rotatably connected to the fixed seat. Two shaft tubes are symmetrically distributed on the left and right in the fixed seat. Each shaft tube is vertically rotatably connected to the fixed seat. A driven gear is sleeved outside the shaft tube, and a driving gear is fixed on the central shaft. The driving gears are all meshed with the driven gears and are connected and driven to the toothed ring seat through the driven gears;

[0017] A ring frame is fixed outside the toothed ring seat, and a plurality of brush bundles are circumferentially distributed on the ring frame.

[0018] Further, as a preference, a liquid storage chamber is arranged in the upper shaft disc. A sealing plug is hermetically slidably connected in the liquid storage chamber. The upper end of the inner shaft is connected to the sealing plug, and an inner spring is connected to the lower end surface of the sealing plug;

[0019] A liquid guiding channel is opened in the inner shaft. The liquid guiding channel passes through the sealing plug and is communicated with the liquid storage chamber. A liquid supply cavity is arranged below the fixed seat. A liquid pipe is vertically rotatably connected in the liquid supply cavity, and the upper end of the liquid pipe is hermetically communicated with the liquid guiding channel.

[0020] Further, as a preference, a plurality of clamping grooves are opened on the inner wall of the central shaft. The lower end of the inner shaft is installed in the clamping grooves, and soft rubber pads are distributed up and down between it and the clamping grooves;

[0021] Linear oscillators are vertically connected in both of the two shaft tubes. The lower ends of the linear oscillators are fixed to the fixed seat, and balls are rotatably installed at their upper ends.

[0022] Further, as a preference, the telescopic working states of the two linear oscillators are arranged in the opposite direction.

[0023] Further, as a preference, the rebound instrument detection unit includes:

[0024] Positioning frames, two of them are arranged in parallel. Both of the two positioning frames are horizontally arranged above the sliding seat;

[0025] Side brackets, two of them are symmetrically arranged. Both of the two side brackets are vertically fixed on the sliding seat, and both ends of the positioning frame are slidably connected to the side brackets;

[0026] A threaded rod is rotatably connected inside the positioning frame. A micro motor is fixed on one side of the positioning frame, and the output end of the micro motor is connected to the threaded rod;

[0027] Sliders, a plurality of which are evenly distributed. Each slider is slidably connected to the positioning frame and is threadedly connected to the threaded rod;

[0028] Clamping frames are fixed on each slider, and vertical rebound testers are provided on the clamping frames.

[0029] Furthermore, as a preference, two clamping frames are bolted to each slider, and a first rebound tester and a second rebound tester are correspondingly installed on the clamping frames.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] In the present invention, a cross frame is mainly arranged on the truss main body. A rebound tester detection unit is installed on the cross frame through a sliding seat. The rebound tester detection unit uses a plurality of rebound testers to perform concrete rebound testing on the bottom of the super-high bridge. Thus, when the rebound tester detection unit slides freely along the cross frame, it can cover different positions at the bottom of the bridge to evaluate the overall strength and uniformity of the concrete;

[0032] The abrasive mechanism provided in the present invention can perform abrasive treatment on the bottom of the super-high bridge, thereby removing pollutants such as dust and oil stains accumulated on the surface of the concrete at the bottom of the super-high bridge and improving the subsequent detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the present invention;

[0034] Figure 2 is a schematic diagram of the overall structure of the present invention;

[0035] Figure 3 is a schematic structural diagram of the guide wheel in the present invention;

[0036] Figure 4 is a schematic structural diagram of the abrasive mechanism in the present invention;

[0037] Figure 5 is Figure 4 a schematic enlarged view of the structure at A in

[0038] Figure 6 is Figure 2 a schematic enlarged view of the structure at B in

[0039] In the figure: 1. Truss main body; 11. Cross frame; 12. Guide shaft; 13. Control motor; 2. Slide seat; 21. Guide wheel; 22. Driving motor; 3. Grinding mechanism; 31. Fixed seat; 32. Central shaft; 33. Inner shaft; 34. Upper shaft disc; 35. Grinding plate; 36. Tooth ring seat; 37. Ring frame; 38. Brush bundle; 4. Rebound instrument detection unit; 41. Positioning frame; 42. Side support; 43. Micro motor; 44. Slide block; 45. Clamping frame; 46. Rebound instrument; 5. Shaft tube; 51. Driven gear; 52. Ball; 53. Linear oscillator; 6. Plug; 61. Inner spring; 62. Liquid guide channel; 63. Liquid supply cavity; 64. Liquid pipe; 65. Soft rubber pad. Specific implementation mode

[0040] Please refer to Figures 1-6 , in the embodiment of the present invention, a high-speed and ultra-high bridge safety detection device includes:

[0041] The truss main body 1 is vertically erected on one side of the ultra-high bridge, and the upper end of the truss main body 1 is fixedly installed with a detection vehicle (not shown in the figure) on the ultra-high bridge; the main tooling part of the detection vehicle is composed of a vehicle body, a flipping table board, a large turntable, a counterweight part, etc., and it can stop on both sides of the ultra-high bridge road, so that the truss main body 1 can be adjusted vertically downward from one side of the high bridge road and gradually reach the bottom of the bridge;

[0042] The guide shaft 12 is vertically and rotatably connected to one side of the lower end surface of the truss main body 1. A cross frame 11 is horizontally fixed on the guide shaft 12, and a support rib is obliquely connected between the lower part of the cross frame 11 and the guide shaft 12;

[0043] The slide seat 2 is slidably connected to the cross frame 11. A guide wheel 21 is rotatably connected inside the slide seat 2, and a driving motor 22 is fixed on the slide seat 2. The output end of the driving motor 22 is connected and driven to the guide wheel 21 through the meshing of gears;

[0044] The grinding mechanism 3 is installed on one side of the upper end surface of the slide seat 2; the grinding mechanism 3 can grind and clean the bottom of the ultra-high bridge during the horizontal sliding of the slide seat 2 along the cross frame 11. On the one hand, it can remove the impurities on the surface of the bridge concrete through physical friction, enhance the cleanliness and flatness of the bridge bottom, improve the subsequent bridge detection accuracy, and on the other hand, it can remove the oxide layer and pollutants on the surface of the bridge bottom, which can effectively prevent further corrosion and extend the service life of the bridge.

[0045] The rebound instrument detection unit 4 is installed on the upper end surface of the slide seat behind the working position of the grinding mechanism 3. The rebound instrument in the rebound instrument detection unit 4 is a commonly used non-destructive testing tool, mainly used to evaluate the surface hardness and strength of concrete.

[0046] In this embodiment, a control motor 13 is fixed on the truss main body 1, and a transmission gear is fixed on the guide shaft 12. The output end of the control motor 13 is meshed with the transmission gear through an external gear. That is to say, the cross frame 11 on the guide shaft 12 can rotate and extend from one side of the ultra-high bridge to the bottom of the bridge under the drive of the control motor 13, so that the sliding seat 2 on the cross frame 11 can slide along the cross frame 11 and displace to different positions at the bottom of the bridge;

[0047] The rotation angle of the guide shaft 12 is not less than 180°.

[0048] As a preferred embodiment, the grinding mechanism 3 includes:

[0049] A fixed seat 31 is fixed on the sliding seat 2. A central shaft 32 is vertically rotatably connected in the fixed seat 31 through a bearing. A driving part (not shown in the figure) is arranged outside the fixed seat 31, and the driving part is connected and driven with the central shaft 32 through a transmission belt;

[0050] An upper shaft disc 34 is coaxially arranged above the fixed seat 31. An inner shaft 33 is coaxially connected in the central shaft 32, and the upper end of the inner shaft 33 is connected to the upper shaft disc 34;

[0051] A grinding plate 35 is detachably installed on the upper shaft disc 34. Different specifications and types of grinding plates 35 can be adopted. When the upper shaft disc 34 rotates with the central shaft 32, the grinding plate 35 on the upper shaft disc 34 can quickly grind the surface of the bridge. By selecting the corresponding grinding plate for targeted treatment, the overall treatment effect can be improved, so as to timely remove the dust, oil stains and aging coatings accumulated at the bottom of the bridge and make the surface cleaner and smoother;

[0052] A tooth ring seat 36 is rotatably connected to the fixed seat 31. Two shaft tubes 5 are symmetrically distributed left and right in the fixed seat 31. Each shaft tube 5 is vertically rotatably connected to the fixed seat 31. A driven gear 51 is sleeved on the shaft tube 5, and a driving gear is fixed on the central shaft 32. The driving gears are meshed with the driven gears 51 respectively, and are connected and driven with the tooth ring seat 36 through the driven gears 51;

[0053] A ring frame 37 is fixed outside the tooth ring seat 37. A plurality of brush bundles 38 are circumferentially distributed on the ring frame 37. Among them, the ring frame 37 can rotate synchronously with the tooth ring seat 36 under the meshing action of the driven gear 51 and the tooth ring seat 36, and its rotation direction is opposite to that of the grinding plate 35, so as to improve the surface dust cleaning effect. In particular, during the sliding displacement of the sliding seat 2, the brush bundles 38 can first clean the bottom of the bridge before the grinding plate 35, and then the grinding plate 35 grinds the cleaned position. After the treatment is completed, the brush bundles 38 on the ring frame 37 further clean the surface of the grinding area, improving the surface cleaning effect of the bottom of the bridge and the subsequent detection accuracy.

[0054] In this embodiment, a liquid chamber is provided inside the upper shaft disc 34. A plug 6 is hermetically and slidably connected inside the liquid chamber. The upper end of the inner shaft 33 is connected to the plug 6, and a inner spring 61 is connected to the lower end surface of the plug 6.

[0055] A liquid guiding channel 62 is formed inside the inner shaft 33. The liquid guiding channel 62 passes through the plug 6 and is communicated with the liquid chamber. A liquid supply chamber 63 is arranged below the fixed seat 31. A liquid pipe 64 is vertically and rotatably connected inside the liquid supply chamber 63. The upper end of the liquid pipe 64 is hermetically communicated with the liquid guiding channel 62. When the hydraulic oil in the liquid supply chamber 63 enters the liquid chamber through the liquid guiding channel 62 by an external liquid pump, the upper shaft disc 34 is gradually lifted upward, increasing the grinding pressure of the grinding plate 35 on the upper shaft disc 34 and improving the grinding strength.

[0056] In this embodiment, a plurality of clamping grooves are formed in the inner wall of the central shaft 32. The lower end of the inner shaft 33 is installed in the clamping groove, and soft rubber pads 65 are distributed above and below it and the clamping groove; the soft rubber pads 65 have a certain elastic supporting effect.

[0057] Linear oscillators 53 are vertically connected inside both of the shaft tubes 5. The lower end of the linear oscillator 53 is fixed to the fixed seat 31, and a ball 52 is rotatably installed at its upper end.

[0058] In this embodiment, the telescopic working states of the two linear oscillators 53 are arranged in opposite directions. Therefore, when the two linear oscillators 53 are working, they can roll and contact the upper shaft disc 34 through the balls 52, so as to provide pulsed lifting power from both sides of the upper shaft disc 34. The soft rubber pads 65 in the clamping groove are correspondingly compressed and rebounded, so that the grinding plate 35 on the upper shaft disc 34 can fully grind and clean the area to be contacted and detected at the bottom of the bridge.

[0059] As a preferred embodiment, the rebound hammer detection unit 4 includes:

[0060] Two positioning frames 41 which are arranged in parallel. Both of the two positioning frames 41 are horizontally arranged above the sliding seat 2.

[0061] Two side brackets 42 which are symmetrically arranged. Both of the two side brackets 42 are vertically fixed on the sliding seat 2. Both ends of the positioning frame 41 are slidably connected to the side brackets 42.

[0062] A threaded rod is rotatably connected inside each of the positioning frames 41. A micro motor 43 is fixed to one side of the positioning frame 41. The output end of the micro motor 43 is connected to the threaded rod.

[0063] The sliding blocks 44 are multiple and evenly distributed. Each of the sliding blocks 44 is slidably connected to the positioning frame 41 and is threadedly connected to the threaded rod.

[0064] The clamping frame 45 is fixed on each of the sliding blocks 44. A rebound hammer 46 vertically arranged is provided on the clamping frame 45. That is to say, after the impact hammer driven by the built-in spring in the rebound hammer impacts, the impact hammer will rebound due to the hardness of the concrete surface. The sensor inside the rebound hammer will record the rebound distance of the impact hammer, so as to test the compressive strength of the concrete according to the rebound distance.

[0065] In this embodiment, two clamping frames 45 are bolted to each of the sliding blocks 44, and a first rebound hammer and a second rebound hammer are correspondingly installed on the clamping frames 45. Especially during the detection, when the sliding seat 2 is displaced to the detection position, the distance between each of the sliding blocks 44 is constant. At this time, the first rebound hammer and the second rebound hammer on each of the sliding blocks 44 respectively perform preliminary fixed-point tests. Then, when the threaded rod rotates, it drives each of the sliding blocks 44 to slide synchronously. At this time, the first rebound hammer is displaced to a new detection point, while the second rebound hammer is displaced to the initial detection point of the first rebound hammer, so as to perform a secondary test on the initial detection point. Then, when the threaded rod rotates reversely, it can drive the second rebound hammer to be displaced to a new detection point, while the first rebound hammer is displaced to the initial detection point of the second rebound hammer, so as to perform a secondary test on another initial detection point. After repeating 3 - 5 times, the concrete strength at the bottom of the bridge in the current area is obtained, improving the detection accuracy.

[0066] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A high-speed super-high bridge safety detection equipment, characterized in that: It includes: A truss body (1) is vertically erected on one side of the superelevated bridge, and the upper end of the truss body (1) is fixedly mounted on a detection vehicle on the superelevated bridge; A guide shaft (12) is vertically rotatably connected to one side of the lower end surface of the truss body (1), a cross frame (11) is horizontally fixed on the guide shaft (12), and a support rib is obliquely connected between the lower part of the cross frame (11) and the guide shaft (12); A slide seat (2) is slidably connected to the cross frame (11), a guide wheel (21) is rotatably connected inside the slide seat (2), and a drive motor (22) is fixed on the slide seat (2), and an output end of the drive motor (22) is connected to the guide wheel (21) for transmission through gear meshing; A grinding mechanism (3) is mounted on one side of the upper end surface of the slide seat (2); The rebound test unit (4) is installed on the upper end surface of the slide seat and is located behind the working position of the grinding mechanism (3).

2. A high-speed super-high bridge safety detection device according to claim 1, characterized in that: A control motor (13) is fixed on the truss body (1), a transmission tooth is fixed on the guide shaft (12), and an output end of the control motor (13) is meshed with the transmission tooth via an external gear; The rotation angle of the guide shaft (12) is not less than 180°.

3. The high-speed super-high bridge safety detection equipment according to claim 1 is characterized by: The grinding mechanism (3) comprises: A fixed seat (31) is fixed on the sliding seat (2); a central shaft (32) is vertically rotatably connected inside the fixed seat (31) via a bearing; a driving unit is provided outside the fixed seat (31); the driving unit is connected to the central shaft (32) for transmission via a transmission belt; An upper shaft disk (34) is coaxially arranged above the fixing seat (31), an inner shaft (33) is coaxially connected inside the central shaft (32), and an upper end of the inner shaft (33) is connected to the upper shaft disk (34); A grinding plate (35) is detachably mounted on the upper shaft disc (34); A gear ring seat (36) is rotatably connected to the fixed seat (31), two shaft tubes (5) are symmetrically distributed in the fixed seat (31), each of the shaft tubes (5) is vertically rotatably connected to the fixed seat (31), the outer sleeve of the shaft tube (5) is provided with a driven tooth (51), and a driving tooth is fixed on the central shaft (32), the driving tooth is meshed with each of the driven teeth (51), and is connected to the gear ring seat (36) for transmission through the driven teeth (51); The ring frame (37) is fixed outside the gear ring seat (37), and a plurality of brush bundles (38) are distributed circumferentially on the ring frame (37).

4. The high-speed super-high bridge safety detection equipment according to claim 3 is characterized by: A liquid tank is provided in the upper shaft disc (34), a sealing plug (6) is sealingly and slidably connected in the liquid tank, the upper end of the inner shaft (33) is connected to the sealing plug (6), and the lower end surface of the sealing plug (6) is connected to an inner spring (61); A liquid conducting channel (62) is provided in the inner shaft (33), the liquid conducting channel (62) passes through the sealing plug (6) and is connected to the liquid storage chamber, and a liquid supply cavity (63) is provided below the fixed seat (31), a liquid tube (64) is vertically rotatably connected in the liquid supply cavity (63), and the upper end of the liquid tube (64) is sealed and connected to the liquid conducting channel (62).

5. The high-speed super-high bridge safety detection equipment according to claim 3 is characterized by: The inner wall of the central shaft (32) is provided with a plurality of slots, the lower end of the inner shaft (33) is mounted in the slots, and soft rubber pads (65) are distributed above and below the inner shaft and the slots; A linear oscillator (53) is vertically connected to each of the two shaft tubes (5); the lower end of the linear oscillator (53) is fixed to the fixing seat (31), and a ball (52) is rotatably mounted on the upper end.

6. The high-speed super-high bridge safety detection equipment according to claim 5 is characterized by: The telescopic working states of the two linear oscillators (53) are arranged in opposite directions.

7. The high-speed super-high bridge safety detection equipment according to claim 1 is characterized by: The rebound test unit (4) comprises: Two positioning frames (41) are arranged in parallel, and the two positioning frames (41) are both arranged horizontally above the slide seat (2); Two side brackets (42) are symmetrically arranged, and both side brackets (42) are vertically fixed on the slide seat (2), and both ends of the positioning frame (41) are slidably connected to the side brackets (42); A threaded rod is rotatably connected in the positioning frame (41); a micro motor (43) is fixed on one side of the positioning frame (41); and an output end of the micro motor (43) is connected to the threaded rod; A plurality of sliders (44) are equidistantly distributed, each of the sliders (44) is slidably connected to the positioning frame (41) and is threadedly connected to the threaded rod; The clamping frame (45) is fixed on each of the slide blocks (44), and each of the clamping frames (45) is provided with a vertically arranged rebound hammer (46).

8. The high-speed super-high bridge safety detection equipment according to claim 7 is characterized by: Two clamping frames (45) are bolted to each of the slide blocks (44), and the clamping frames (45) are correspondingly mounted with a first rebound hammer and a second rebound hammer.

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