CN113484323A - Bridge main push-towing rope detection device - Google Patents
Bridge main push-towing rope detection device Download PDFInfo
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- CN113484323A CN113484323A CN202110944877.6A CN202110944877A CN113484323A CN 113484323 A CN113484323 A CN 113484323A CN 202110944877 A CN202110944877 A CN 202110944877A CN 113484323 A CN113484323 A CN 113484323A
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- 238000005096 rolling process Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 description 7
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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Abstract
The application discloses a bridge main cable detection device, which comprises a motion module and a detection module; the detection module comprises an arc-shaped structure, a driving assembly, a flexible transmission part, an arc-shaped track and a detection instrument; the arc-shaped structures comprise fixed arc-shaped structures and group moving arc-shaped structures; the movement module is used for moving along a main cable of the bridge; the fixed arc-shaped structure is arranged on the motion module; a group of movable arc structures are arranged on the fixed arc structures; the flexible transmission part and the driving component which are matched with each other are respectively arranged on the adjacent arc-shaped structures, the arc-shaped track is arranged on the arc-shaped structures, and the driving component drives the moving arc-shaped structures in the adjacent arc-shaped structures to move along the arc-shaped track through the flexible transmission part matched with the driving component; the arc-shaped structure is provided with the detection instrument for detecting the bridge main cable. The automatic inspection device is short in inspection distance, high in efficiency and free of blind areas, and can realize automatic inspection without high-altitude operation of technicians.
Description
Technical Field
The application relates to the field of bridge detection, in particular to a bridge main cable detection device.
Background
With the development of Chinese economy, a large number of large-span bridges appear, the bridge safety becomes the core problem of national economy and national safety, and bridge damage detection is the premise of ensuring the bridge safety. The suspension bridge is a preferred scheme for the extra-large bridge due to flexible construction, attractive appearance, strong adaptability and good navigation. The main cable is the main bearing construction of the suspension bridge, and can be corroded to a certain extent under the action of natural factors such as wind, rain, freezing, temperature and humidity change all the year round, and the main cable is required to be detected and maintained regularly to ensure the safe operation of the bridge.
The existing inspection method mainly comprises the steps that technicians walk on a main cable for inspection or a telescope and other equipment is adopted on a bridge floor for inspection, the bottom of the main cable cannot be observed in a short distance, the inspection modes are low in efficiency and have blind areas, and great safety risks exist in high-altitude operation.
Disclosure of Invention
In order to overcome the defects in the prior art, the application provides a bridge main cable detection device using a flexible transmission part.
A bridge main cable detection device comprises a motion module and a detection module; the detection module comprises a plurality of arc-shaped structures, a plurality of driving components, a plurality of flexible transmission parts matched with the driving components, a plurality of arc-shaped tracks matched with the flexible transmission parts and a plurality of detection instruments; the arc-shaped structure comprises a fixed arc-shaped structure and a plurality of groups of movable arc-shaped structures;
the movement module is used for moving along a main cable of the bridge; the fixed arc-shaped structure is arranged on the motion module; at least one side of the fixed arc-shaped structure is provided with a group of movable arc-shaped structures; the group of moving arc-shaped structures comprises one moving arc-shaped structure or a plurality of moving arc-shaped structures which are connected in sequence;
the flexible transmission part and the driving component which are matched with each other are respectively arranged on the adjacent arc structures, the arc track is arranged on two or any one of the adjacent arc structures, and the driving component drives the moving arc structure in the adjacent arc structure to move along the arc track through the flexible transmission part matched with the driving component;
at least one the arc structure is installed detecting instrument, detecting instrument is used for detecting the bridge main push-towing rope.
As can be seen from the above technical solutions, the advantages of the present application include: the inspection distance is short, the efficiency is high, no blind area exists, and automatic inspection can be realized without high-altitude operation of technicians.
Optionally, the flexible drive comprises a belt drive, a chain drive, or a rope drive. The flexible drive is selected to be of an appropriate length as required by the distance of movement. Compared with the scheme of using gear and rack transmission or worm and gear transmission, the device has the advantages of low manufacturing cost, simple processing procedure and small weight.
Optionally, a driving assembly is mounted on the fixed arc-shaped structure, and the flexible transmission member which is matched with the driving assembly is mounted on the movable arc-shaped structure on at least one side of the fixed arc-shaped structure;
the drive assembly is mounted on the moving arcuate structure relatively close to the fixed arcuate structure, and the flexible drive member, which is cooperative with the drive assembly, is mounted on the moving arcuate structure relatively far from the fixed arcuate structure. The motor is relatively static, and the transmission is more stable. The transmission can be realized by the exchange of the installation positions of the driving component and the flexible transmission part in the scheme.
Optionally, the drive assembly comprises: a motor and a drive wheel; the motor drives the driving wheel to rotate, and the driving wheel is matched with the flexible transmission part. The motor comprises a stepping motor and a servo motor. The driving wheel comprises a belt wheel, a grooved wheel, a chain wheel and a gear. According to the requirement, a speed reducer can be arranged between the motor and the driving wheel, the output end of the motor is connected with the input end of the speed reducer, and the output end of the speed reducer is connected with the driving wheel. The use of a motor drive enables precise control of the motion.
Optionally, the drive assembly further comprises a tensioning wheel, the position of which relative to the drive wheel is adjustable. The take-up pulley can adjust the elasticity of flexible drive spare, prevents to skid.
Optionally, the drive assembly further comprises a guide wheel. The guide wheel can better guide the movement of the flexible transmission part, so that the movement of the movable arc-shaped structure is more stable.
Optionally, the arc-shaped structure is provided with a mechanical limiting device for limiting the maximum movement range of the arc-shaped structure. The mechanical limiting device comprises a stop block, a stop pillar or a limiting groove. The mechanical limiting device can prevent the movable arc-shaped structure from falling off, and the movable arc-shaped structure is prevented from exceeding the normal movement range to damage the driving assembly and the flexible transmission part.
Optionally, the arc structure is provided with a bearing which is matched with the arc track; the bearings are arranged in one row or multiple rows, the bearings in the same row are distributed along the same circumference, and the circumferences formed by the bearings in different rows have different radiuses and are concentric. And the bearings are used for connection, so that the friction is reduced, and the service life of the device is prolonged. The use of a single row of bearings is less costly. Two or more rows of bearings are used, so that the connection rigidity is good, and the requirement for measuring the main cable of the large bridge can be met.
Optionally, the bearings of the same row comprise several sets of bearings; the group of bearings comprises a first bearing and a second bearing; the axis of the first bearing is perpendicular to the plane of the arc-shaped track, and the axis of the second bearing passes through the center of a circle of the arc-shaped track. The first bearing limits the arc-shaped track to move along the radial direction of the circumference where the arc-shaped track is located, and the second bearing limits the arc-shaped track to move along the vertical direction of the plane where the arc-shaped track is located, so that the arc-shaped track can only move along the circumferential direction of the circumference where the arc-shaped track is located.
Optionally, the arc-shaped structure is provided with a sliding guide rail supporting block matched with the arc-shaped track, and the arc-shaped track is a sliding guide rail; alternatively, the first and second electrodes may be,
the arc-shaped structure is provided with a rolling guide rail supporting block matched with the arc-shaped track, and the arc-shaped track is a rolling guide rail. The sliding guide rail or the rolling guide rail is convenient to install and good in connection rigidity.
In summary, the bridge main cable detection device provided by the application has the advantages that the movement module can automatically move along the bridge main cable; the arc-shaped structure on the detection module can surround the bridge main cable when being unfolded, so that non-blind area detection is realized; when the bridge main cable passes through obstacles on the bridge main cable, the arc-shaped mechanism can be retracted, and flexible simultaneous movement is realized; the inspection distance is short, the efficiency is high, no blind area exists, and automatic inspection can be realized without high-altitude operation of technicians. Compared with the scheme of using a gear rack transmission or a worm gear transmission, the flexible transmission device has the advantages of low manufacturing cost, simple processing procedure and small weight.
Drawings
Fig. 1 is a schematic view of a working environment of a bridge main cable detection device according to an embodiment of the present application;
FIG. 2 is a diagram illustrating an expanded state of the bridge main cable inspection device according to the embodiment of the present invention;
FIG. 3 is another expanded view of the bridge main cable inspection device according to the embodiment of the present invention;
FIG. 4 is a schematic view illustrating a contracted state of the bridge main cable detection device according to the embodiment of the present application;
FIG. 5 is a schematic plan view of an expanded state of the bridge main cable inspection device according to the embodiment of the present application;
FIG. 6 is a schematic enlarged partial view of a region A of the bridge main cable detection device according to the embodiment of the present application;
FIG. 7 is a schematic view of a driving assembly of the bridge main cable inspection device according to the embodiment of the present application;
1-a detection module; 101-fixing the arc-shaped structure; 102-moving the arc-shaped structure; 103-a motor; 104-a drive wheel; 105-a tensioner; 106-a guide wheel; 107-flexible drive; 108-curved track; 109-a first bearing; 110-a second bearing; 111-a mount; 112-motor mount; 113-adjusting screws; 114-a speed reducer; 115-a stop; 116-a catch; 2-a motion module; 3-bridge main cable; 301-handrail rope; 302-a cable clamp; 303-cross brace; 304-a column; 305-lower railing rope; 306-upper railing rope.
Detailed Description
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the application provides a bridge main cable detection device for realize the main cable all standing and detect.
As shown in fig. 1 to 7, a bridge main cable detection device comprises a motion module 2 and a detection module 1; the motion module 2 is provided with a group of planet wheels which can effectively cross obstacles such as a cross brace 303 and the like; a group of side supporting wheels are respectively installed on two sides of the motion module 2, and the bridge main cable detection device can be prevented from deviating from the bridge main cable 3. It should be noted that motion module 2 can have multiple structure, hangs detection module 1 on motion module 2 such as dolly or robot for bridge main push-towing rope detection device along 3 motions of bridge main push-towing rope, prevent deviating, cross the obstacle, realize 3 non-blind areas of bridge main push-towing rope through installing visual sensor, laser sensor etc. on this application and detect.
The detection module 1 comprises 7 arc structures, 6 driving components, 6 flexible transmission parts 107 matched with the driving components, 12 arc tracks 108 matched with the flexible transmission parts 107, and detection instruments such as a visual sensor and the like are installed on each arc structure. The arc-shaped structures comprise 1 fixed arc- shaped structure 101 and 2 groups of moving arc-shaped structures 102; a group of movable arc structures 102 are respectively arranged on two sides of the fixed arc structure 101; the set of moving arc structures 102 includes 3 moving arc structures 102 connected in sequence; the flexible drive 107 is a timing belt. The fixed arc 101 is detachably mounted to the moving module 2. It should be noted that the number of the arc-shaped structures can be increased or decreased according to the needs; the mobile arc structure 102 may be mounted on only one side of the fixed arc structure 101; the flexible transmission member 107 can be made of different shapes and materials, the synchronous belt transmission can be replaced by a flat belt, a chain or a rope, and the structure which is unfolded along the circumferential direction of the main cable can also adopt gear rotation, worm and worm gear transmission and the like.
The flexible transmission piece 107 and the driving component which are matched with each other are respectively arranged on the adjacent arc-shaped structures, the flexible transmission piece 107 is arranged on the arc-shaped structure which is relatively far away from the fixed arc-shaped structure 101, and the driving component is arranged on the fixed arc-shaped structure 101 and the arc-shaped structure which is relatively close to the fixed arc-shaped structure 101; the arcuate rail 108 is mounted to an arcuate structure of the adjacent arcuate structures that is relatively far from the fixed arcuate structure 101. The drive assembly drives the moving arc structure 102 of the adjacent arc structures along the arc track 108 by means of a flexible drive 107 engaged therewith. A straight line is made through both ends of the flexible transmission member 107, which is parallel to the plane of the curved track 108. The upper side surface and the lower side surface of the arc-shaped structure are revolution surfaces; the flexible transmission 107 is fixed at both ends to one of the surfaces of revolution. It should be noted that the mounting positions of the flexible transmission 107 and the driving assembly are interchanged; the arcuate rails 108 may be mounted on the fixed arcuate structure 101 and the arcuate structure relatively close to the fixed arcuate structure 101, or the arcuate rails 108 may be mounted on all arcuate structures.
The arc-shaped structure is provided with the detection instrument, and the detection instrument is used for detecting the bridge main cable 3. It should be noted that the type and the number of the detection instruments can be adjusted according to the detection requirements.
The bridge main cable detection device according to the embodiment of the present application is described in detail below with reference to fig. 1 to 7.
As shown in fig. 1, the detection module 1 needs to be mounted on the motion module 2 to travel along the main cable, so as to realize full-coverage detection of the main cable and the cable clamp 302.
As shown in fig. 2, the detection module 1 is annular when being unfolded along the circumferential direction of the main cable, so that the main cable and the cable clamp 302 can be completely covered, and full-coverage detection can be realized through the visual sensor carried on the detection module. The large cylindrical object to be measured is axially unfolded to form an annular structure which completely covers the object to be measured along the circumferential direction. It should be noted that the object to be measured may be a columnar structure other than the main cable of the suspension bridge.
As shown in fig. 3, the detection module 1 is composed of a mounting seat 111, a fixed arc structure 101, a moving arc structure 102, a flexible transmission 107, a bearing, and a driving assembly. The mounting seat 111 is connected with the fixed arc-shaped structure 101 through a screw; the movable arc structures 102 are divided into two groups and are respectively arranged on two sides of the fixed arc structure 101; each set of moving arc structures 102 has three moving arc structures 102, with the moving arc structure 102 closest to the fixed arc structure 101 being the first moving arc structure 102, the moving arc structure 102 adjacent to the first moving arc structure 102 being the second moving arc structure 102, and the moving arc structure 102 furthest from the fixed arc structure 101 being the third moving arc structure 102; the first moving arc-shaped structure 102 is connected with the fixed arc-shaped structure 101 through a bearing and can slide along the fixed arc-shaped structure 101, and a mechanical limiting device is arranged in the first moving arc-shaped structure; the second moving arc-shaped structure 102 is connected with the first moving arc-shaped structure 102 through a bearing and can slide along the first moving arc-shaped structure 102, and a mechanical limiting device is arranged in the second moving arc-shaped structure; the third moving arc-shaped structure 102 is connected with the second moving arc-shaped structure 102 through a bearing and can slide along the second moving arc-shaped structure 102, and a mechanical limiting device is arranged in the third moving arc-shaped structure;
as shown in fig. 4, the detection module 1 can be contracted along the circumferential direction of the main cable and smoothly pass through obstacles such as the upright column 304, the cross brace 303 and the like. It can be seen that the detection module 1 has two states, an expanded state and a contracted state.
As shown in fig. 5 and 6, the fixed moving arc structure 101, the first moving arc structure 102, the second moving arc structure 102, and the third moving arc structure 102 are respectively installed with bearings in the radial and axial directions of the bridge main cable 3 such that the first moving arc structure 102, the second moving arc structure 102, and the third moving arc structure 102 slide along the respective rails. The two bearings of the same set are placed vertically. Two bearings of the set of bearings respectively limit the arc-shaped track 108 to move radially and axially relative to the circumference of the arc-shaped track 108, so that the arc-shaped track 108 can only move circumferentially relative to the circumference. Two ends of the fixed arc-shaped structure 101, the first movable arc-shaped structure 102, the second movable arc-shaped structure 102 and the third movable arc-shaped structure 102 are respectively provided with a stop column 116 and a stop block 115 which are used as mechanical limiting devices, so that the first movable arc-shaped structure 102, the second movable arc-shaped structure 102 and the third movable arc-shaped structure 102 can be mechanically limited. It should be noted that the bearing between the rings may be replaced by an annular slide rail.
The flexible transmission member 107 is a synchronous belt, and two ends of the synchronous belt are fixed on the first moving arc-shaped structure 102, the second moving arc-shaped structure 102 and the third moving arc-shaped structure 102 through screws and gaskets. The timing belt is passed through the lower part of two outermost guide wheels 106, and the driving wheel 104 is arranged in the middle of the guide wheels 106. And the synchronous belt is adopted for transmission, and the synchronous belt and the driving assembly need to enter and exit from the lower side of the guide wheel 106 when being connected.
As shown in fig. 7, the driving unit includes components such as a motor 103, a speed reducer 114, a guide pulley 106, a tension pulley 105, a driving wheel 104, a motor mounting base 112, and an adjustment screw 113. The motor 103 and the reducer 114 are fixed on the motor mounting base 112 through screws, the driving wheel 104 is mounted on an output shaft of the reducer 114, the guide wheel 106 and the tension wheel 105 are fixed on the motor mounting base 112 through shafts, bearings and screws, wherein the tension wheel 105 can move up and down through the adjusting screw 113.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. The utility model provides a bridge main push-towing rope detection device which characterized in that: the device comprises a motion module and a detection module; the detection module comprises a plurality of arc-shaped structures, a plurality of driving components, a plurality of flexible transmission parts matched with the driving components, a plurality of arc-shaped tracks matched with the flexible transmission parts and a plurality of detection instruments; the arc-shaped structure comprises a fixed arc-shaped structure and a plurality of groups of movable arc-shaped structures;
the movement module is used for moving along a main cable of the bridge; the fixed arc-shaped structure is arranged on the motion module; at least one side of the fixed arc-shaped structure is provided with a group of movable arc-shaped structures; the group of moving arc-shaped structures comprises one moving arc-shaped structure or a plurality of moving arc-shaped structures which are connected in sequence;
the flexible transmission part and the driving component which are matched with each other are respectively arranged on the adjacent arc structures, the arc track is arranged on two or any one of the adjacent arc structures, and the driving component drives the moving arc structure in the adjacent arc structure to move along the arc track through the flexible transmission part matched with the driving component;
at least one the arc structure is installed detecting instrument, detecting instrument is used for detecting the bridge main push-towing rope.
2. The bridge main cable detection device according to claim 1, wherein: the flexible drive comprises a belt drive, a chain drive, or a rope drive.
3. The bridge main cable detection device according to claim 1, wherein:
the flexible transmission piece matched with the driving component is arranged on the movable arc-shaped structure at least on one side of the fixed arc-shaped structure;
the drive assembly is mounted on the moving arcuate structure relatively close to the fixed arcuate structure, and the flexible drive member, which is cooperative with the drive assembly, is mounted on the moving arcuate structure relatively far from the fixed arcuate structure.
4. The bridge main cable detection device according to claim 1, wherein: the drive assembly includes: a motor and a drive wheel; the motor drives the driving wheel to rotate, and the driving wheel is matched with the flexible transmission part.
5. The bridge main cable detection device according to claim 4, wherein: the drive assembly further includes a tensioning wheel, the position of which relative to the drive wheel is adjustable.
6. The bridge main cable detection device according to claim 5, wherein: the drive assembly further includes a guide wheel.
7. The bridge main cable detection device according to claim 1, wherein: the arc-shaped structure is provided with a mechanical limiting device, and the mechanical limiting device is used for limiting the maximum movement range of the arc-shaped structure.
8. The bridge main cable detection device according to any one of claims 1 to 7, wherein: the arc-shaped structure is provided with a bearing matched with the arc-shaped track; the bearings are arranged in one row or multiple rows, the bearings in the same row are distributed along the same circumference, and the circumferences formed by the bearings in different rows have different radiuses and are concentric.
9. The bridge main cable detection device according to claim 8, wherein: the bearings in the same row comprise a plurality of groups of bearings; the group of bearings comprises a first bearing and a second bearing; the axis of the first bearing is perpendicular to the plane of the arc-shaped track, and the axis of the second bearing passes through the center of a circle of the arc-shaped track.
10. The bridge main cable detection device according to any one of claims 1 to 7, wherein:
the arc-shaped structure is provided with a sliding guide rail supporting block matched with the arc-shaped track, and the arc-shaped track is a sliding guide rail; alternatively, the first and second electrodes may be,
the arc-shaped structure is provided with a rolling guide rail supporting block matched with the arc-shaped track, and the arc-shaped track is a rolling guide rail.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110944877.6A CN113484323A (en) | 2021-08-17 | 2021-08-17 | Bridge main push-towing rope detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110944877.6A CN113484323A (en) | 2021-08-17 | 2021-08-17 | Bridge main push-towing rope detection device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347392A (en) * | 2020-03-17 | 2020-06-30 | 深圳市人工智能与机器人研究院 | Detection robot |
| CN112415018A (en) * | 2020-11-04 | 2021-02-26 | 广东电网有限责任公司东莞供电局 | Visual detection equipment with image collection function |
| CN215910350U (en) * | 2021-08-17 | 2022-02-25 | 香港中文大学（深圳） | Bridge main push-towing rope detection device |
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- 2021-08-17 CN CN202110944877.6A patent/CN113484323A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347392A (en) * | 2020-03-17 | 2020-06-30 | 深圳市人工智能与机器人研究院 | Detection robot |
| CN112415018A (en) * | 2020-11-04 | 2021-02-26 | 广东电网有限责任公司东莞供电局 | Visual detection equipment with image collection function |
| CN215910350U (en) * | 2021-08-17 | 2022-02-25 | 香港中文大学（深圳） | Bridge main push-towing rope detection device |
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