CN209144651U - Bridge stay cable detects trolley - Google Patents

Abstract

The bridge stay cable inspection trolley includes an upper snap ring and a lower snap ring with the same centerline. The upper snap ring and the lower snap ring are both provided with a notch for penetrating the stay cable. Connected by three vertically arranged support rods, two of which are fixedly connected to the left and right ends of the upper snap ring and the lower snap ring respectively, and the top of the upper snap ring is provided with at least three evenly arranged along the circumferential direction of the upper snap ring Detection device, the inner side of the upper and lower ends of the three support rods are hinged with a pressure rod that can be rotated up and down, the inner end of each pressure rod is rotatably connected with a pressure wheel, and the upper snap ring is provided with a pressure wheel in the middle to drive The connected traveling drive motor has a linkage mechanism between the upper three pressing rods and the lower three pressing rods. The utility model has the advantages of compact structure, small volume, light weight and convenient operation, improves the detection efficiency and detection effect of the stay cable, and ensures the safety performance of the bridge.

Description

Bridge stay cable inspection trolley

technical field

The utility model belongs to the technical field of mechanical detection, in particular to a bridge stay cable detection trolley.

Background technique

The cable-stayed cable is the main load-bearing part of the cable-stayed bridge and is in a very critical and core position. The integrity of its external PE protection is the guarantee for the safe operation of the cable-stayed cable. Once the PE protection of the stay cable is damaged, rainwater or water vapor will penetrate into the interior of the stay cable, which may cause corrosion and fracture of the bridge stay cable. The existing inspection method of bridge stay cables generally adopts manual visual inspection method: it is completed by the staff through the telescope from the bridge deck, and there is a blind spot only by relying on the visual inspection equipment, and all parts of the surface of the stay cables cannot be clearly inspected; It cannot be detected along the stay cable and cannot meet the current usage requirements.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a bridge cable-stayed cable detection trolley which can move along the cable-stayed cable, has no dead angle in detection, and has high detection efficiency.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: the bridge stay cable detection trolley includes an upper snap ring and a lower snap ring with the same center line, and the upper snap ring and the lower snap ring are both provided with holes for penetrating the oblique cable. The gap of the cable, the upper snap ring and the lower snap ring are connected by three vertically arranged support rods, two of which are fixedly connected to the left and right ends of the upper snap ring and the lower snap ring respectively, and the top of the upper snap ring is connected. A rechargeable battery pack and at least three detection devices are arranged evenly along the circumference of the upper snap ring. The inner sides of the upper and lower ends of the three support rods are hinged with a pressure rod that can be rotated up and down, and the inner ends of each pressure rod are connected by rotation. There is a pressing wheel, the upper snap ring is provided with a walking drive motor that is connected with a pressing wheel in the middle of the upper part, and a linkage mechanism is set between the three pressing rods on the upper part and the three pressing rods on the lower part, and the rechargeable battery pack is separated by wires. The power supply is connected to the detection device, the walking drive motor and the power drive mechanism of the linkage mechanism.

The linkage mechanism includes a pressing drive motor, a slider, a C-type linkage rod, an active link, an active pull rod, a driven link and a driven pull rod. A chute is respectively opened in the middle of the three struts along the length direction. A sliding block is slidably arranged inside, and the pressing drive motor is fixedly arranged on the outside of the support rod and is located above the sliding block. The slider in the middle is threadedly connected, the three sliders are connected by the C-type linkage rod, the upper end of the active pull rod, the upper end of the active link and the middle part of the upper intermediate pressure rod are hinged through the first pin shaft, and the lower end of the active pull rod and the middle part are hinged. The inner part of the sliding block is hinged through the second pin shaft, and the lower end of the active link and the middle part of the lower intermediate pressure rod are hinged through the third pin shaft;

Both the driven link and the driven pull rod are provided with two; the upper end of the driven pull rod, the upper end of the driven link and the middle of the upper left pressure rod are hinged through the fourth pin, and the lower end of the driven pull rod is connected with The inner part of the slider on the left is hinged through the fifth pin, the lower end of the driven link and the middle part of the lower left pressure rod are hinged through the sixth pin; the upper end of the other driven pull rod and the other driven link are hinged. The upper end of the rod and the middle part of the upper right pressing rod are hinged through the seventh pin, the lower end of the driven rod is hinged with the inner part of the slider on the right side through the eighth pin, and the lower end of the driven link is pressed with the lower right side. The middle of the rod is hinged through the ninth pin.

Each detection device includes a detection rod, the lower end of the detection rod is fixed on the upper snap ring, and the upper end of the detection rod is provided with a camera and/or a metal detector.

The central angle of the notch is 120°, and the distance between the left and right ends of the upper snap ring, that is, the width of the notch is greater than the diameter of the stay cable.

The support rod is made of a rectangular tube, the chute is a long hole which is open on the inner and outer sides of the rectangular tube and is transparent inside and out, and the slider passes through the long hole and is slidably connected in the inner hole of the rectangular tube.

By adopting the above technical solution, when the utility model is in use, the utility model is firstly sleeved on the stay cable through the notch, and then the pressing and driving motor is started, and the pressing and driving motor drives the screw rod to rotate. If the block is threadedly connected, the slider moves upward along the middle chute, and the active pull rod also moves upward. The active pull rod drives the upper middle pressure rod to rotate upward, and the lower end of the active link pulls up the middle lower pressure rod to rotate upward. The pressing rollers connected by the inner ends of the upper and lower middle pressing rods are pressed to the outside of the stay cable; When moving up, the sliders on the left and right sides are also moved up by the C-type linkage rod, the driven rod moves up, the driven rod drives the upper pressure rod on the left and right sides to rotate upward, and the lower end of the driven rod pulls the left and right sides upward. The lower pressure rod also rotates upwards, and the pressure rollers connected to the inner ends of the upper and lower pressure rods on the left and right sides are tightly pressed to the outside of the stay cable. The pressing wheel can be a rubber wheel, which has anti-skid and certain elasticity, and has a better pressing effect. Then, the walking drive motor can be started, and the walking drive motor drives a pressing wheel in the upper middle to rotate, so that the other five pressing wheels can be driven to move up along the stay cable at the same time. The upper end of the detection rod is provided with a camera and/or a metal detector. The outer circumference of the stay cable can be inspected and detected without gaps. The control of the utility model can be wired or wireless remote control.

The linkage mechanism in the utility model has the function of simultaneously compressing the oblique stay cables or simultaneously releasing them, and each rod member can be made of light-weight aluminum alloy material, which is light in weight.

To sum up, the utility model has the advantages of compact structure, small volume, light weight, convenient operation, improved detection efficiency and detection effect of stay cables, and guaranteed safety performance of bridges.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the left side view of Fig. 1;

FIG. 4 is a schematic view of the three-dimensional structure of the present invention.

Detailed ways

As shown in Figures 1 to 4, the bridge stay cable detection trolley of the present invention includes an upper snap ring 1 and a lower snap ring 2 with the same centerline. Both the upper snap ring 1 and the lower snap ring 2 are provided with Passing into the gap 4 of the stay cable 3, the upper snap ring 1 and the lower snap ring 2 are connected by three vertically arranged struts 5, wherein two struts 5 are fixedly connected to the upper snap ring 1 and the lower snap ring respectively. At the left and right ends of 2, the top of the upper snap ring 1 is provided with a rechargeable battery pack 6 and at least three detection devices evenly arranged along the circumferential direction of the upper snap ring 1, and the inner sides of the upper and lower ends of the three struts 5 are hinged with a rechargeable battery pack 6. The pressure rod 7 that rotates up and down, the inner end of each pressure rod 7 is rotatably connected with a pressure wheel 8, and the upper snap ring 1 is provided with a walking drive motor 9 that is connected to a pressure wheel 8 in the middle of the upper part. A linkage mechanism is arranged between the rod 7 and the three lower pressure rods 7, and the rechargeable battery pack 6 is connected to the detection device, the walking drive motor 9 and the power drive mechanism of the linkage mechanism through wires respectively for power supply.

The linkage mechanism includes a pressing drive motor 10, a sliding block 11, a C-shaped linkage rod 12, an active link 13, an active pull rod 14, a driven link 15 and a driven pull rod 16. The middle of the three support rods 5 are respectively provided with a longitudinal direction. A sliding groove 17, each sliding groove 17 is slidably provided with a sliding block 11, the pressing drive motor 10 is fixedly arranged outside the support rod 5 and is located above the sliding block 11, and the main shaft of the pressing driving motor 10 is the same as the A screw rod 18 parallel to the support rod 5 is axially connected. The screw rod 18 is threadedly connected with the middle slider 11. The three sliders 11 are connected by the C-type linkage rod 12. The upper end of the connecting rod 13 and the middle part of the upper intermediate pressure rod 7 are hinged through the first pin shaft, the lower end of the active pull rod 14 and the inner part of the middle slider 11 are hinged through the second pin shaft, and the lower end of the active link 13 and the lower intermediate pressure rod 7 are hinged. The middle is hinged through the third pin;

Both the driven link 15 and the driven pull rod 16 are provided with two; the upper end of the driven pull rod 16, the upper end of the driven link 15 and the middle of the upper left pressure rod 7 are hinged through a fourth pin. The lower end of the driven pull rod 16 is hinged with the inner part of the slider 11 on the left side through a fifth pin, and the lower end of the driven link 15 is hinged with the middle part of the lower left pressure rod 7 through a sixth pin; The upper end of the pull rod 16, the upper end of the other driven link 15 and the middle part of the upper right pressure rod 7 are hinged through the seventh pin, and the lower end of the driven pull rod 16 and the inner part of the slider 11 on the right pass through the eighth pin Hinged, the lower end of the driven link 15 is hinged with the middle of the lower right pressing rod 7 through the ninth pin.

Each detection device includes a detection rod 19 , the lower end of the detection rod 19 is fixed on the upper snap ring 1 , and the upper end of the detection rod 19 is provided with a camera and/or a metal detector 20 .

The central angle of the notch 4 is 120°, and the distance between the left and right ends of the upper snap ring 1 , that is, the width of the notch 4 is greater than the diameter of the stay cable 3 .

The support rod 5 is made of a rectangular tube. The chute 17 is a long hole that is open on the inner and outer sides of the rectangular tube. The slider 11 passes through the long hole and is slidably connected to the inner hole of the rectangular tube.

When the utility model is in use, the utility model is first put on the stay cable 3 through the notch 4, and then the pressing and driving motor 10 is activated, and the pressing and driving motor 10 drives the screw rod 18 to rotate. The slider 11 is threadedly connected, the slider 11 moves upward along the middle chute 17, the active pull rod 14 also moves upward, the active pull rod 14 drives the upper middle pressure rod 7 to rotate upward, and the lower end of the active link 13 pulls the middle upward The lower pressing rod 7 also rotates upward, and the pressing wheel 8 connected to the inner ends of the middle upper and lower pressing rods 7 is pressed to the outside of the stay cable 3; The sliders 11 are connected by the C-type linkage rod 12. When the middle slider 11 moves upward, it also drives the left and right sliders 11 to move up through the C-type linkage rod 12. The driven pull rod 16 moves upward, and the driven pull rod 16 drives The upper pressure rods 7 on the left and right sides rotate upward, and the lower end of the driven link 15 pulls up the lower pressure rods 7 on the left and right sides and also rotates upward, and the inner ends of the upper and lower pressure rods 7 on the left and right sides rotate and connect the pressure wheel 8. Press firmly to the outside of stay cable 3. The pressing wheel 8 can be a rubber wheel, which has anti-skid and certain elasticity, and has a better pressing effect. Then, the walking driving motor 9 can be started, and the walking driving motor 9 drives the upper middle pressing wheel 8 to rotate, so that the other five pressing wheels 8 can be driven to move up along the stay cable 3 at the same time. The upper end of the detection rod 19 is provided with a camera and a camera. /Or the metal detector 20 can inspect and detect the outer circumference of the stay cable 3 without any gap. The control of the utility model can be wired or wireless remote control.

This embodiment does not limit the shape, material, structure, etc. of the present invention in any form, and any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention belong to the technology of the present invention. The scope of protection of the program.

Claims (5)

1. The bridge stay cable detection trolley is characterized in that: it includes an upper snap ring and a lower snap ring with the same center line, and the upper snap ring and the lower snap ring are both provided with a notch for penetrating the stay cable, and the upper snap ring It is connected with the lower snap ring through three vertically arranged support rods, two of which are fixedly connected to the left and right ends of the upper snap ring and the lower snap ring respectively. The top of the upper snap ring is provided with a rechargeable battery pack and along the At least three detection devices are evenly arranged in the circumferential direction of the upper snap ring. The inner sides of the upper and lower ends of the three struts are hinged with a pressure rod that can be rotated up and down, and a pressure wheel is rotatably connected to the inner end of each pressure rod. The upper snap ring There is a walking drive motor connected to a pressing wheel in the middle of the upper part, a linkage mechanism is arranged between the three pressing rods on the upper part and the three pressing rods on the lower part, and the rechargeable battery pack is connected to the detection device, the walking driving motor and the The power drive mechanism of the linkage mechanism is connected to power supply. 2. The bridge stay cable detection trolley according to claim 1 is characterized in that: the linkage mechanism comprises a pressing drive motor, a slider, a C-type linkage rod, an active link, an active pull rod, a driven link and a driven link Pull rod, the middle of the three struts are respectively provided with a chute along the length direction, each chute is slidably provided with a sliding block, and the pressing drive motor is fixed to the outside of the strut and is located above the sliding block, press The main shaft of the drive motor is coaxially connected with a screw rod parallel to the support rod. The screw rod is threadedly connected with the middle slider. The three sliders are connected by the C-type linkage rod. The upper end of the active pull rod and the active link The upper end and the middle part of the upper intermediate pressure rod are hinged through the first pin shaft, the lower end of the active pull rod and the inner part of the middle slider are hinged through the second pin shaft, and the lower end of the active link and the middle part of the lower intermediate pressure rod are hinged through the third pin shaft; Both the driven link and the driven pull rod are provided with two; the upper end of the driven pull rod, the upper end of the driven link and the middle of the upper left pressure rod are hinged through the fourth pin, and the lower end of the driven pull rod is connected with The inner part of the slider on the left is hinged through the fifth pin, the lower end of the driven link and the middle part of the lower left pressure rod are hinged through the sixth pin; the upper end of the other driven pull rod and the other driven link are hinged. The upper end of the rod and the middle part of the upper right pressing rod are hinged through the seventh pin, the lower end of the driven rod is hinged with the inner part of the slider on the right side through the eighth pin, and the lower end of the driven link is pressed with the lower right side. The middle of the rod is hinged through the ninth pin. 3. The bridge stay cable detection trolley according to claim 1 is characterized in that: each detection device comprises a detection rod, the lower end of the detection rod is fixed on the upper snap ring, and the upper end of the detection rod is provided with a camera and/or a metal detector. 4 . The bridge stay cable detection trolley according to claim 1 , wherein the central angle of the notch is 120°, and the distance between the left and right ends of the upper snap ring, that is, the width of the notch is greater than the diameter of the stay cable. 5 . 5. The bridge stay cable detection trolley according to claim 2 is characterized in that: the support rod is made of a rectangular tube, the chute is a long hole with internal and external permeability opened on the inner and outer sides of the rectangular tube, and the slider passes through the long hole and It is slidingly connected in the inner hole of the rectangular tube.