CN116427265A - A pier-passing maintenance vehicle and its working method - Google Patents

Abstract

The invention discloses a pier-passing maintenance vehicle and a working method thereof. A longitudinal moving track is arranged at the bottom of each span of a steel beam, a transverse moving rail frame is arranged under the longitudinal moving track, and a hanging basket is connected to the sliding rail frame Next, there is a lifting platform that can change the construction height in the hanging basket. The maintenance personnel move with the hanging basket, and connect and pass the pier between the adjacent two-span steel beams through the pier-passing platform, so as to realize the comprehensive inspection range of the bottom of the steel beam. Coverage, through the set-up overhaul vehicle, the maintenance personnel can move the position at any time, and enter the working position safely, quickly and efficiently for flow detection or maintenance operations, without affecting the traffic during work. The hanging basket is used to hang and walk. The equipment Lightweight, easy to install and operate, easy to move, simple to manufacture, low construction and maintenance costs.

Description

A pier-passing maintenance vehicle and its working method

technical field

The invention relates to the technical field of bridge maintenance. More specifically, the present invention relates to a pier overhaul vehicle and its working method.

Background technique

With the rapid development of my country's modern steel industry and the rapid development of steel structure processing and manufacturing technology, steel components are widely used because of their small cross-section, light weight, good plasticity and toughness, and relatively high compressive and shear strength. Bridge design and construction. Compared with traditional concrete beams, steel beams have the characteristics of high degree of assembly, high construction precision, good economic benefits, and short construction period. The excellent characteristics of steel structures make steel beams the preferred beam type for long-span bridges. However, steel structure bridges are prone to corrosion and rust, and require regular repairs and maintenance.

In order to ensure the use effect of steel structure bridges and prolong the service life of bridges, it is necessary to design a device or equipment to assist the inspection and maintenance of steel structure bridges. The device or equipment should have the characteristics of simple operation, high safety factor and good stability. The device or equipment does not affect driving under the bridge or navigation under the bridge when it is working. The working range of the device or equipment can cover the steel girder bottom plate, web plate and flange area, so as to ensure bridge maintenance in an all-round way. For different bridge section forms, the difficulty of covering the bottom of the bridge in all directions is also different. For example, when the bridge section is a pair of steel girders close to splicing, the overall bridge width is relatively large, and a large range of movement is required in the upward direction of the cross bridge, and Corresponding to a pair of bridge piers at the bottom of a pair of steel girders, the blocking width is also very large. If the traditional technology is used to install maintenance vehicles downward on both sides of the cross bridge, the upper end of the maintenance vehicle uses the walking track set at the edge of the bridge deck. The form of moving along the longitudinal bridge is not only inconvenient for maintenance in the area near the center line of the bridge, but also unable to pass the pier. When passing the pier, it needs to frequently go up and down or adjust the posture of the maintenance vehicle. The overall maintenance cost is high, the space is large, and the safety risk It is also high. At present, there is no good solution to the problems of large maintenance range and difficult maintenance of long-span bridges with this cross-section form.

Contents of the invention

It is an object of the present invention to solve at least the above-mentioned problems and to provide at least the advantages which will be described later.

Another object of the present invention is to provide a pier-passing maintenance vehicle and its working method, so as to solve the technical problems of insufficient maintenance coverage and low maintenance efficiency for existing wide and large steel structure bridges.

In order to achieve these objects and other advantages according to the present invention, a pier-passing maintenance vehicle is provided, comprising:

Vertical moving track system, which includes a pair of inner beam bottom tracks, a pair of outer beam bottom tracks and connecting bases, the inner beam bottom tracks are arranged symmetrically at the bottom of the steel girder floor along the longitudinal bridge direction, and the outer beam bottom tracks are symmetrically arranged along the longitudinal bridge direction It is arranged at the bottom of the wing plate of the steel beam, and the bottom track of the inner beam and the bottom track of the outer beam are respectively fixedly connected with the steel beam through the connection base;

Traversing track system, which includes traversing rails arranged along the direction of the bridge at the bottom of each steel girder. The length of the traversing rails is slightly greater than the maximum width of the bridge deck, and the two ends of the traversing rails are respectively connected upwards. There are suspenders, the suspenders are suspended on the outer longitudinal track on the corresponding side and are slidingly connected with the outer longitudinal track, and the position near the middle of the traversing rail frame is symmetrically equipped with a traversing walking system, which is connected to the corresponding position through the traversing walking system The bottom track of the inner beam can move along the extension direction of the bottom track of the inner beam. The bottom of the traversing rail frame is provided with traveling equipment. The walking equipment includes a walking wheel set and a driving wheel that can rotate along the length direction of the traversing rail frame. Drive motor for group movement;

The pier suspension system includes a pier platform arranged between two adjacent piers in the upward direction of the transverse bridge. The pier platform is provided with a pier-passing track along the longitudinal bridge direction;

The hanging basket walking system includes a hanging basket and a lifting platform. The top of the hanging basket is suspended on the bottom of the walking wheel set and a height space for detaching from the suspension is provided at the bottom of the walking wheel set. The hanging basket is equipped with a generator, an electric control Cabinet, electric control cabinet is electrically connected with the generator, the lifting platform is set in the hanging basket, the bottom of the hanging basket is provided with a vertical jack downwards, and the bottom of the hanging basket is equipped with walking casters corresponding to the pier track, walking casters, and traversing walking system , The driving motor is electrically connected to the electric control cabinet, and the lengths of the two ends of the pier-crossing track beyond the pier are greater than the length of the hanging basket upwards on the longitudinal bridge;

The upper and lower bridge channels are arranged outside the upper end of the steel girder and the lower end extends downward to the end top surface of the traverse rail frame.

Preferably, the traversing rail frame includes a pair of horizontal hanging rods arranged in parallel, and a plurality of supporting frame rods are connected between the pair of horizontal hanging rods. Through the plane space, the support frame rod at the end of the horizontal hanging rod includes a pair of longitudinal rods arranged at intervals. Multiple spacers.

Preferably, the upper and lower bridge passages include vertical bars arranged at intervals along the longitudinal bridge direction, adjacent vertical bars are respectively connected with horizontally arranged connecting bars at intervals, and a ladder is connected to the side of the vertical bars away from the steel beam. The side of the vertical bar facing the steel beam is connected with a horizontally arranged middle bar, the other end of the middle bar is connected with the suspender, and the bottom of each vertical bar is fixedly connected with the upper surface of one of the transverse spacers. The upper surface of the end of the rail shifting frame is provided with a docking platform corresponding to the bottom of the ladder.

Preferably, the pier platform includes two rows of vertical hanging rods arranged oppositely along the longitudinal direction of the bridge, the top of each row of vertical hanging rods is connected to the bottom of the steel beam flange on the corresponding side, and the top of each row of vertical hanging rods is connected There are multiple side bars, and the multiple side bars on each side are integrally connected to form an isosceles triangle frame. The bottoms of the two isosceles triangle frames and the bottoms of the two rows of vertical hanging bars are jointly connected with a horizontal pier bottom plate. , the pier-passing track is fixed on the upper surface of the pier-passing bottom plate, and the lengths of the two ends of the pier-passing track respectively exceeding the outermost vertical hanging rods of the corresponding ends are greater than the length of the hanging basket upward on the longitudinal bridge, so An adjusting screw is connected between the outer side of the vertical hanging rod and the web of the steel beam on the corresponding side.

Preferably, the traveling wheel sets on each of the traversing rails include:

Four sets of rollers are arranged symmetrically corresponding to the top angles of the hanging basket. The cross-section of the horizontal hanging rod is an I-shaped structure arranged vertically. both ends;

The C-shaped piece, whose opening direction is set upwards, includes a pair of vertical plates at both ends and a hanging basket hanging rod connected between the pair of vertical plates. Each set of rollers is correspondingly integrated on a C-shaped piece. Each set of rollers All the rollers on the same side in the group are connected to the same vertical plate through bearings, the drive motor is fixed on the outside of one of the vertical plates and the output end is used to drive all the rollers on the corresponding side to rotate, above the hanging rod of the hanging basket The height space is separated from the bottom of the horizontal hanging rod;

Each top corner of the hanging basket is provided with a hook corresponding to the C-shaped piece upwards, and the hook passes through the height space and is hung on the hanging basket hanging rod and is provided with a hook lock.

The present invention also provides a working method of a pier-passing overhaul vehicle, which includes the following steps:

S1: synchronously install the longitudinal moving track and the pier passing platform before the construction of the steel beam, and install the horizontal moving rail frame and the horizontal moving walking system after the steel beam construction is completed;

S2: Assembling the hanging basket walking system, installing and connecting the walking equipment and the hanging basket on the bottom of one end of the traverse rail frame close to the upper and lower bridge passages;

S3: Maintenance workers enter the hanging basket through the upper and lower bridge passages, start the generator, open the control cabinet to transmit power to the line, and control the walking equipment to carry the hanging basket on the traversing rail frame Moving up, starting the traversing walking system, and moving the traversing rail frame along the longitudinal moving track system, and controlling the rise and fall of the lifting platform, so that the maintenance work can cover the flange of the steel beam;

S4: The hanging basket moves longitudinally to the range of the pier-passing platform, lifts the vertical jack, makes the top of the hanging basket break away from the suspension of the walking wheel set, and operates the walking equipment to leave the The top of the hanging basket is at the plane position, the vertical jack slowly returns oil, the walking casters of the hanging basket slowly fall on the pier rail, and the walking casters are controlled by the control cabinet so that all The hanging basket moves slowly along the pier passing track, so as to realize pier passing;

S5: After the gondola trolley passes the pier, lift the vertical jack, and operate the walking equipment on the next traverse rail frame to move close to the gondola until the top of the gondola enters the gondola The above-mentioned height space, the vertical jack slowly returns the oil, makes the hanging basket hang on the described action wheel set on the traverse rail frame of the next span, and starts the maintenance work of the next span.

The present invention at least includes the following beneficial effects: the pier-passing maintenance vehicle of the present invention sets a longitudinal moving track at the bottom of each span of the steel beam, sets a transverse moving rail frame under the longitudinal moving track, and then connects the hanging basket to the sliding rail frame Next, the hanging platform is equipped with a lifting platform that can change the construction height. The maintenance personnel move with the hanging platform, and connect and pass the pier between the adjacent two-span steel beams through the pier platform, so as to realize the comprehensive inspection range of the bottom of the steel beam. Coverage, through the pier-passing maintenance vehicle, the maintenance personnel can move the position at any time, and enter the working position safely, quickly and efficiently for flow detection or maintenance operations, without affecting the traffic during work. The hanging basket is used to hang and walk. Lightweight, easy to install and operate, easy to move, simple to manufacture, and low in construction and maintenance costs.

Other advantages, objectives and features of the present invention will partly be embodied through the following descriptions, and partly will be understood by those skilled in the art through the research and practice of the present invention.

Description of drawings

Fig. 1 is the front structural view of the pier overhaul vehicle of the present invention installed on the bottom of the steel beam;

Fig. 2 is a side view structure diagram of the pier overhaul vehicle of the present invention installed at the bottom of the steel beam;

Fig. 3 is the side view structure diagram of the pier platform of the present invention;

Fig. 4 is the top structural view of the traversing rail frame of the present invention;

Reference signs in the manual: 1. Steel beam, 2. Bridge pier, 3. Bottom track of inner beam, 4. Bottom track of outer beam, 5. Connection base, 6. Traversing rail frame, 7. Suspension rod, 8. Traveling equipment, 9. Walking wheel set, 10. Drive motor, 11. Pier-passing platform, 12. Pier-passing track, 13. Hanging basket, 14. Lifting platform, 15. Generator, 16. Electric control cabinet, 17. Vertical jack, 18, walking casters, 19, upper and lower bridge passages, 20, horizontal hanging rods, 21, support frame rods, 22, vertical rods, 23, transverse partition rods, 24, vertical rods, 25, climbing ladders, 26, middle rods, 27, Docking platform, 28, vertical hanging rod, 29, side rod, 30, pier bottom plate, 31, adjusting screw mandrel, 32, roller, 33, vertical plate, 34, hanging basket hanging rod, 35, hook.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are conventional methods, and the reagents and materials, if not otherwise specified, can be obtained from commercial sources; in the description of the present invention, The terms "landscape", "portrait", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", The orientation or positional relationship indicated by "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have Certain orientations, constructed and operative in certain orientations, therefore are not to be construed as limitations on the invention.

As shown in Figures 1-3, the present invention provides a pier-passing maintenance vehicle, including:

The longitudinal track system includes a pair of inner girder bottom rails 3, a pair of outer girder bottom rails 4 and a connecting base 5, the inner girder bottom rails 3 are arranged symmetrically on the bottom of the steel girder 1 floor along the longitudinal bridge direction, and the outer girder bottom rails 4 symmetrically arranged at the bottom of the wing plate of the steel beam 1 along the longitudinal bridge direction, the inner beam bottom track 3 and the outer beam bottom track 4 are respectively fixedly connected to the steel beam 1 through the connection base 5;

The traversing track system includes traversing rail frames 6 arranged in the direction of the bridge at the bottom of each steel girder 1. The length of the traversing rail frames 6 is slightly greater than the maximum width of the bridge deck. Suspenders 7 are connected upwards at the ends respectively, and the suspenders 7 are suspended on the outer longitudinal moving track on the corresponding side and are slidably connected with the outer longitudinal moving track. The moving walking system is connected to the inner beam bottom track 3 at the corresponding position and can move along the extension direction of the inner beam bottom track 3. The bottom of the traversing rail frame 6 is provided with a walking device 8, which includes a The traveling wheel group 9 that rotates in the length direction of 6 and the drive motor 10 that drives the traveling wheel group 9 to move;

The suspension system through the pier, which includes the pier platform 11 arranged between two adjacent piers 2 upward of the cross bridge, and the two ends of the top of the pier platform 11 are suspended and supported on the two side wings adjacent to the two steel beams 1 located at the pier 2 At the bottom of the plate, a pier-passing track 12 is provided along the longitudinal bridge direction on the pier-passing platform 11;

Hanging basket 13 walking system, it comprises hanging basket 13, lifting platform 14, and the top of hanging basket 13 is suspended on the bottom of walking wheel set 9 and is provided with the height space that is used to break away from suspension at the bottom of walking wheel set 9, and hanging basket 13 A generator 15 and an electric control cabinet 16 are provided, and the electric control cabinet 16 is electrically connected with the generator 15. The lifting platform 14 is arranged in the hanging basket 13, and the bottom of the hanging basket 13 is provided with a vertical jack 17 downwards. Corresponding to the pier track 12 at the bottom, there are walking casters 18, the walking casters 18, the traversing walking system, the drive motor 10 are electrically connected to the electric control cabinet 16, and the lengths of the two ends of the pier track 12 beyond the pier 2 are longer than the length of the hanging basket 13. the upward length of the longitudinal bridge;

The upper and lower bridge channels 19 are arranged outside the upper end of the steel girder 1 and the lower end extends downward to the end top surface of the traverse rail frame 6 .

The vertical moving track, the horizontal moving rail frame 6, the hanging basket 13, and the upper and lower bridge passages 19 are mainly made of section steel, which is easy to connect with the steel beam 1, and has high structural strength and light weight. , the height is slightly higher than the height of normal people, which plays a closed and protective effect, while the height of the pier track 12 on the pier platform 11 is slightly lower than the height of the lowest point after the hanging basket 13 is suspended on the traversing rail frame 6, and The length extends to at least one hanging basket 13 before and after the pier 2, which is convenient for receiving the hanging basket 13. The maximum design height of the lifting platform 14 needs to reach the flange of the steel beam 1, so that the maintenance vehicle can achieve full coverage of the steel beam 1. The hanging basket 13 is powered by a portable generator 15 to provide power for the vertical movement and lateral movement of the hanging basket 13 and the work of the lifting platform 14. The circuit of the entire device is controlled by the electric control cabinet 16, and the walking system and the drive motor 10 are moved horizontally. The peripheral power supply inlet is convenient to connect with the generator 15 circuit, and the setting of the portable generator 15 and the electric control cabinet 16 makes the whole structural system not need an external circuit, which solves the difficult problem of bridge deck wiring.

The traversing rail frame 6 moves upward along the vertical moving track through the traversing walking system. The hanging basket 13 moves up the horizontal bridge along the traversing rail frame 6 through the set walking equipment 8 . The maintenance personnel stand on the lifting platform 14 It can move up and down, and the maintenance personnel go down from the bridge deck to the traversing rail frame 6 through the upper and lower bridge passages 19, and dock with the lifting platform 14 in the hanging basket 13, and move the hanging basket 13 to the pier passing platform when passing the pier Above 11, lift up the entire hanging basket 13 through the vertical jack 17, break away from the suspension connection with the walking equipment 8, release the suspension connection with the horizontal moving rail frame 6, and then make the vertical jack 17 return oil and drop until the hanging basket 13 falls on the pier track 12 completely, walks to the other end along the pier track 12, thereby realizes the pier, and re-suspends and connects after approaching the next span rail frame 6.

The pier-passing maintenance vehicle of the present invention is provided with a vertical moving track at the bottom of each span of the steel beam 1, and a horizontal moving rail frame 6 is arranged under the vertical moving track, and then the hanging basket 13 is connected under the sliding rail frame, and the hanging basket 13 There is a lifting platform 14 that can change the construction height. The maintenance personnel move with the hanging basket 13, and connect and pass the pier between the adjacent two-span steel beams 1 through the pier platform 11, so as to realize the full inspection range of the bottom of the steel beam 1. Azimuth coverage, through the set-up pier-type maintenance vehicle, the maintenance personnel can move the position at any time, safely, quickly and efficiently enter the work position for flow detection or maintenance operations, and the traffic will not be affected during work. The hanging basket 13 is used to hang and walk , The equipment is lightweight, easy to install and operate, easy to move, simple to manufacture, and low in construction and maintenance costs.

In another technical solution, as shown in FIG. 4 , the traverse rail frame 6 includes a pair of horizontal hanging rods 20 arranged in parallel, and a plurality of support frame rods 21 are connected between the pair of horizontal hanging rods 20 . Adjacent support frame rods 21 are spaced out for the plane space through which the lifting platform 14 passes up and down, and the support frame rods 21 positioned at the ends of the horizontal hanging rods 20 include a pair of vertical rods 22 arranged at intervals, and the ends of the vertical rods 22 Fixedly connected to the inner side of the horizontal hanging rod 20 , a plurality of transverse spacer rods 23 are connected between the pair of longitudinal rods 22 at intervals.

By setting the traversing rail frame 6 in the form of a frame structure, the structural weight is reduced, and it is convenient to move along the vertical moving track. For the maintenance and construction of the plane space up and down, for the two supporting frame rods 21 arranged at the ends, the form of double longitudinal rods 22 is adopted, and a transverse bar 23 is arranged to strengthen the structural connection strength of the ends.

In another technical solution, as shown in FIG. 1 , the upper and lower bridge passages 19 include vertical bars 24 arranged at intervals along the longitudinal bridge direction, and adjacent vertical bars 24 are respectively connected with horizontally arranged connecting rods at intervals, A ladder 25 is connected to the side of the vertical rod 24 away from the steel beam 1, and a horizontally arranged middle rod 26 is connected to the side of the vertical rod 24 facing the steel beam 1. The other end of the middle rod 26 is connected with the suspension rod 7, each The bottom of the vertical bar 24 is fixedly connected to the upper surface of one of the transverse spacers 23 , and a docking platform 27 is arranged below the upper surface of the end of the traverse rail frame 6 corresponding to the ladder 25 .

The upper and lower bridge channels 19 are externally arranged on the outer edge of the steel beam 1, connected to the traversing rail frame 6, and move synchronously with the traversing rail frame 6. The bottom of the upper and lower bridge channels 19 is just in the same vertical direction as the transverse partition bar 23 for fixed connection. The side is connected with the suspension rod 7, and the docking platform 27 is convenient for standing. From the side of the bridge deck, it passes through the space between the ladder 25, the docking platform 27, the bottom of the middle pole 26 and the traversing rail frame 6, and a pair of support rods at the end. 21. The lifting platform 14 enters the hanging basket 13.

In another technical solution, as shown in Fig. 1 and Fig. 3, the pier platform 11 includes two rows of vertical hanging rods 28 arranged oppositely along the longitudinal bridge direction, and the top of each row of vertical hanging rods 28 is connected to the corresponding At the bottom of the steel beam 1 wing plate on the side, a plurality of side bars 29 are connected on each row of vertical hanging bars 28, and a plurality of side bars 29 on each side are integrally connected into an isosceles triangle frame, and between the bottoms of the two isosceles triangle frames Between the bottoms of the two rows of vertical hanging rods 28, there is a horizontally arranged pier base plate 30, the pier track 12 is fixed on the upper surface of the pier base plate 30, and the two ends of the pier track 12 respectively exceed The length of the vertical hanging rod 28 on the outermost side of the corresponding end is greater than the length of the hanging basket 13 upward on the longitudinal bridge, and an adjustment wire is connected between the outer side of the vertical hanging rod 28 and the web of the steel beam 1 on the corresponding side. Rod 31.

The side rods 29 on both sides of the pier platform 11 are connected with the vertical hanging rods 28 to form an isosceles triangle truss structure, which is mainly supported by hanging under the steel beam 1 wing plate, and the two sides are connected with the steel beam 1 web support , and adjust the length of the adjusting screw 31 according to the distance between the webs of the adjacent steel beam 1 to ensure the stability of the structural connection of the pier platform 11. The adjusting screw 31 can generally include a ball screw and a pair of screw nuts. The rod nut is sleeved on the ball screw of the transmission connection seat, and a support sleeve is respectively sleeved outside the two screw nuts, and the support sleeves at both ends are respectively connected with the steel beam 1 web and the vertical hanging rod 28.

In another technical solution, as shown in FIG. 2 , the traveling wheel sets 9 on each of the traversing rail frames 6 include:

32 groups of rollers, four groups are arranged symmetrically corresponding to the top angles of the hanging basket 13, the section of the horizontal hanging rod 20 is a vertically arranged I-shaped structure, and 32 groups of rollers are slidably arranged on the horizontal hanging rod 20 The two ends of the lower side panel;

The C-shaped piece, whose opening direction is set upwards, includes a pair of vertical plates 33 located at both ends and a hanging basket hanging rod 34 connected between the pair of vertical plates 33, and each group of rollers 32 is correspondingly integrated on a C-shaped piece , all the rollers 32 on the same side in each group of rollers 32 are connected to the same vertical plate 33 through bearings, the drive motor 10 is fixed on the outside of one of the vertical plates 33 and the output end is used to drive all the rollers on the corresponding side 32 rotations, the height space is spaced between the top of the hanging basket hanging rod 34 and the bottom of the horizontal hanging rod 20;

Each top corner of the hanging basket 13 is provided with a hook 35 upwards corresponding to the C-shaped piece. The hook 35 passes through the height space and hangs on the hanging basket hanging rod 34 and is provided with a hook 35 lock.

The horizontal hanging bar 20 is an I-shaped structure, the upper wing plate and the upper half of the web are fixedly connected with the support frame rod 21, and the lower half of the web and the lower wing plate form an inverted T-shaped structure, which is convenient for the roller 32 sets of support, each of the plurality of rollers 32 is fixedly connected to a rotating gear coaxially, and a transmission gear is meshed between adjacent gears, and the transmission gear is meshed with the driving gear provided at the output end of the driving motor 10 , so as to realize that the driving motor 10 synchronously drives a plurality of rollers 32 to rotate, and moves along the horizontal hanging rod 20. The rotating gear, the transmission gear, and the driving gear are installed on the vertical plate 33 of the C-shaped piece through bearings respectively, and the driving motor 10 is fixed on the vertical plate 33, the bottoms of the vertical plates 33 are fixedly connected and are connected with hanging basket hanging rods 34, one of which has a higher strength hanging basket hanging rod 34 for flexible connection with the top of the hanging basket 13, and the hook 35 is supported on the hanging basket After the hanging rod 34 is installed, it is locked and connected by the hook 35 lock. When the connection needs to be released, first unlock the hook 35 lock, then lift the hanging basket 13 to raise the position of the hook 35, leave the height of the hanging basket hanging rod 34, and translate the hanging basket hanging rod 34, make hook 35 descend again.

The present invention also provides a working method of the pier-passing maintenance vehicle, as shown in Figure 1-4, including the following steps:

S1: Before the construction of the steel beam 1, the longitudinal moving track and the pier passing platform 11 are installed synchronously, and the horizontal moving rail frame 6 and the horizontal moving walking system are installed after the construction of the steel beam 1 is completed. The traversing walking system is generally also in the form of driving wheels and motors or walking dollies similar to the walking equipment 8, and only needs to realize driving the traversing rail frame 6 to move.

S2: Assemble the walking system of the hanging basket 13, install and connect the walking equipment 8 and the hanging basket 13 on the bottom of one end of the traverse rail frame 6 close to the upper and lower bridge passages 19.

S3: Maintenance workers enter the hanging basket 13 through the upper and lower bridge passages 19, start the generator 15, open the control cabinet to transmit power to the line, and control the walking equipment 8 to carry the hanging basket 13 in the place. Move on the traversing rail frame 6, start the traversing walking system, move the traversing rail frame 6 along the vertical moving track system, and control the rise and fall of the lifting platform 14, so that maintenance The work can cover the steel beam 1 flange.

S4: The hanging basket 13 moves longitudinally to the range of the pier-passing platform 11, lifts the vertical jack 17, makes the top of the hanging basket 13 detached from the suspension of the walking wheel set 9, and operates the The walking equipment 8 leaves the plane position where the top of the hanging basket 13 is located, the vertical jack 17 returns oil slowly, and the walking casters 18 of the hanging basket 13 slowly fall on the pier rail 12, passing through The control cabinet controls the walking casters 18 to make the hanging basket 13 move slowly along the pier passing track 12, thereby realizing pier passing.

S5: After the hanging basket 13 has passed the pier, lift the vertical jack 17, and operate the walking equipment 8 on the next traverse rail frame 6 to move close to the hanging basket 13 until the hanging basket 13 The top of the basket 13 enters the height space, and the vertical jack 17 returns oil slowly, so that the hanging basket 13 is hung on the moving wheel set on the traverse rail frame 6 of the next span, and the maintenance of the next span is started Work.

According to the design and layout of the steel beam 1, the vertical moving track of the pier supporting structure, the horizontal moving rail frame 6 and the pier passing platform 11 are used as the movement track of the hanging basket 13, and the lifting platform 14 is set in the hanging basket 13, so that the pier can pass smoothly , to realize the coverage of the whole range of maintenance on the bottom surface of the whole bridge, set the generator 15 in the hanging basket 13 to supply power, when it needs to move, control the power supply of the line and the operation of the walking equipment 8 through the electric control cabinet 16, and use the steel beam 1 wing plate And the space at the web is provided with the upper and lower bridge passages 19 to guide the maintenance workers up and down, so that they can enter the hanging basket 13 safely and conveniently, and move in translation with the traverse rail frame 6 and the hanging basket 13, which provides great convenience for the maintenance work. The layout of work and structural equipment occupies a small space and does not affect the passage of existing traffic up and down the bridge. A microprocessor and a remote controller connected by communication can be arranged correspondingly in the traverse walking system, the upgrade platform, and the walking equipment 8, which is further convenient for remote control. Hanging baskets 13 can also be installed at the bottom of steel beams 1 of different spans for simultaneous construction as required, so as to improve maintenance efficiency.

Although the embodiment of the present invention has been disclosed as above, it is not limited to the use listed in the specification and implementation, it can be applied to various fields suitable for the present invention, and it can be easily understood by those skilled in the art Therefore, the invention is not limited to the specific details and examples shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims (6)

1. The pier-passing type maintenance vehicle is characterized by comprising:

the longitudinal moving track system comprises a pair of inner beam bottom tracks, a pair of outer beam bottom tracks and a connecting base, wherein the inner beam bottom tracks are symmetrically arranged at the bottom of a bottom plate of the steel beam along the longitudinal bridge direction, the outer beam bottom tracks are symmetrically arranged at the bottoms of wing plates of the steel beam along the longitudinal bridge direction, and the inner beam bottom tracks and the outer beam bottom tracks are fixedly connected with the steel beam through the connecting base respectively;

the transverse moving rail system comprises transverse moving rail frames which are respectively arranged at the bottoms of each cross steel beam along the transverse bridge direction, the lengths of the transverse moving rail frames are slightly larger than the maximum width of a bridge deck, two ends of each transverse moving rail frame are respectively connected with a hanging rod upwards, the hanging rods are hung on outer longitudinal moving rails on corresponding sides and are in sliding connection with the outer longitudinal moving rails, transverse moving running systems are symmetrically arranged at positions, close to the middle parts, of the transverse moving rail frames, the transverse moving systems are connected to inner beam bottom rails on corresponding positions and can move along the extending directions of the inner beam bottom rails, and running equipment is arranged at the bottoms of the transverse moving rail frames and comprises running wheel groups capable of rotating along the length directions of the transverse moving rail frames and driving motors for driving the running wheel groups to move;

the pier crossing suspension system comprises pier crossing platforms arranged between two adjacent piers upwards of the transverse bridge, two ends of the tops of the pier crossing platforms are suspended and supported at the bottoms of wing plates on two adjacent sides of the two steel beams at the piers, and pier crossing tracks are arranged on the pier crossing platforms along the longitudinal bridge direction;

the hanging basket traveling system comprises a hanging basket and a lifting platform, wherein the top of the hanging basket is hung at the bottom of a traveling wheel set, a height space for separating from the hanging is formed in the bottom of the traveling wheel set, a generator and an electric control cabinet are arranged on the hanging basket, the electric control cabinet is electrically connected with the generator, the lifting platform is arranged in the hanging basket, a vertical jack is downwards arranged at the bottom of the hanging basket, traveling casters are arranged at the bottom of the hanging basket corresponding to pier passing tracks, the traveling casters, a transverse traveling system, a driving motor and the electric control cabinet are electrically connected, and the lengths of the pier passing tracks, which exceed the length of the hanging basket in the longitudinal bridge direction, are respectively;

and the upper bridge channel and the lower bridge channel are arranged outside the upper end of the steel beam, and the lower end of the upper bridge channel extends downwards to the top surface of the end part of the transverse moving rail frame.

2. The pier-passing type maintenance vehicle according to claim 1, wherein the transverse rail comprises a pair of transverse hanging rods which are arranged in parallel, a plurality of support rods are connected between the pair of transverse hanging rods, a plane space for the lifting platform to pass through up and down is separated by the adjacent support rods, the support rods positioned at the end parts of the transverse hanging rods comprise a pair of longitudinal rods which are arranged at intervals, the end parts of the longitudinal rods are fixedly connected with the inner sides of the transverse hanging rods, and a plurality of transverse rods are connected between the pair of longitudinal rods at intervals.

3. The pier-passing type maintenance vehicle according to claim 2, wherein the upper bridge channel and the lower bridge channel comprise vertical rods which are arranged at intervals along the longitudinal bridge direction, connecting rods which are arranged horizontally are respectively connected between the adjacent vertical rods at intervals, a ladder stand is connected to one surface of each vertical rod, which is far away from the steel beam, a middle rod which is arranged horizontally is connected to one surface of each vertical rod, which faces the steel beam, the other end of each middle rod is connected with the hanging rod, the bottom of each vertical rod is fixedly connected with the upper surface of one transverse rod, and a butt-joint platform is arranged below the corresponding ladder stand on the upper surface of the end part of the transverse rail frame.

4. The pier-passing type maintenance vehicle according to claim 3, wherein the pier-passing platform comprises two rows of vertical hanging rods which are arranged along the longitudinal bridge direction and are opposite to each other, the top of each row of vertical hanging rods is connected to the bottom of a steel beam wing plate on the corresponding side, a plurality of side rods are connected to each row of vertical hanging rods, the side rods on each side are integrally connected to form an isosceles triangle frame, a pier-passing bottom plate which is horizontally arranged is commonly connected between the bottoms of the two isosceles triangle frames and between the bottoms of the two rows of vertical hanging rods, pier-passing tracks are fixed on the upper surface of the pier-passing bottom plate, the lengths of the vertical hanging rods, which respectively exceed the outermost sides of the corresponding ends, of the pier-passing tracks are larger than the lengths of the hanging baskets in the longitudinal bridge direction, and adjusting screw rods are connected between the outer sides of the vertical hanging rods and webs of the steel beams on the corresponding sides.

5. The pier passing service truck of claim 3, wherein the running wheel set on each of the traversing rails comprises:

the roller groups are symmetrically arranged corresponding to the top angles of the hanging basket, the cross section of the transverse hanging rod is of a vertically arranged I-shaped structure, and each roller group is arranged at two ends of a lower wing plate of the transverse hanging rod in a sliding manner;

the C-shaped piece is upwards arranged in the opening direction and comprises a pair of vertical plates positioned at two ends and a hanging basket hanging rod connected between the pair of vertical plates, each group of roller groups is correspondingly and integrally arranged on one C-shaped piece, all rollers positioned at the same side in each group of roller groups are connected to the same vertical plate through bearings, the driving motor is fixed at the outer side of one vertical plate, the output end of the driving motor is used for driving all rollers at the corresponding side to rotate, and a height space is formed between the upper part of the hanging basket hanging rod and the bottom of the transverse hanging rod;

and hooks which penetrate through the height space and are hung on hanging rods of the hanging basket are respectively and upwards arranged at the positions of each vertex angle of the hanging basket corresponding to the C-shaped pieces, and hook locks are arranged on the hooks.

6. A method of operating a pier passing service vehicle of claim 3, comprising the steps of:

s1: the longitudinal moving rail and the pier passing platform are synchronously installed before steel beam construction, and the transverse moving rail frame and the transverse moving travelling system are installed after the steel beam construction is completed;

s2: assembling the hanging basket traveling system, namely installing and connecting the traveling equipment and the hanging basket to the bottom of one end, close to the upper bridge channel and the lower bridge channel, of the transverse moving rail frame;

s3: the maintenance worker enters the hanging basket through the upper bridge channel and the lower bridge channel, starts the generator, starts the control cabinet to transmit power to a line, controls the traveling equipment to move on the transverse moving rail frame with the hanging basket, starts the transverse moving system to longitudinally move along the longitudinal moving rail system with the transverse moving rail frame, and enables maintenance work to cover the flange of the steel beam by controlling the lifting platform to ascend and descend;

s4: the hanging basket longitudinally moves to the range of the pier passing platform, the vertical jack is lifted, the top of the hanging basket is separated from the suspension of the travelling wheel set, the travelling equipment is operated to leave the plane position where the top of the hanging basket is located, the vertical jack slowly returns oil, the travelling castor of the hanging basket slowly falls on the pier passing track, and the travelling castor is controlled by the control cabinet to enable the hanging basket to slowly move along the pier passing track, so that pier passing is realized;

s5: after the hanging basket car passes the pier, the vertical jack is lifted, the next travelling equipment on the transverse moving rail frame is operated to move close to the hanging basket until the top of the hanging basket enters the height space, and the vertical jack returns oil slowly, so that the hanging basket is hung on the action wheel set on the transverse moving rail frame of the next span, and the next span overhauling work is started.

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