CN118273172A - Beam erecting and transporting device and beam erecting method for magnetic levitation track beam - Google Patents

Abstract

The invention discloses a beam-erecting transportation device and a beam-erecting method for a magnetic levitation track beam, comprising a transportation Liang Chezu and a transportation Liang Chezu, wherein the transportation Liang Chezu consists of two bicycles; the bicycle comprises a frame, a plurality of groups of wheel groups arranged on the frame and a bracket arranged on the frame, wherein the bracket is connected with the frame in a sliding fit manner, so that the bracket can move up and down on the frame along the vertical direction; the bracket is provided with the bracket arm which is arranged on the frame in a cantilever structure along the horizontal direction, and the bracket arm is connected with the bracket in a sliding fit manner, so that the bracket arm can horizontally move towards two sides of the frame along the longitudinal direction. Through changing the height of roof beam, make the roof beam can stride across the beam position that has already put forward and transport the roof beam to wait to put forward on the beam position, and place the roof beam and wait to put forward on the beam position with the roof beam, through removing the connection between two bicycles of fortune Liang Chezu to take out the trailing arm from the roof beam bottom, make things convenient for each bicycle to withdraw from corresponding position department, thereby made things convenient for the transportation of magnetic levitation track roof beam greatly to put forward the beam operation.

Description

Maglev track beam erection and transportation device and beam erection method

Technical Field

The invention belongs to the technical field of magnetic levitation track beams, and in particular relates to a beam erection and transportation device and a beam erection method for magnetic levitation track beams.

Background technique

The beam-rail separated maglev track structure can effectively solve the emergency evacuation problems and track beam manufacturing accuracy problems existing in the traditional maglev track "beam-rail integrated" structural mode, and provides a new construction plan for the application of high-speed maglev tracks.

During the construction of the maglev track beams, the progress of each construction point on the line is taken into consideration and intermittent beam erection operations are often required. At this time, the use of traditional gun carriages to transport beams will be difficult to meet the needs of the maglev track beam transportation and erection operations.

Summary of the invention

The object of the present invention is to provide a beam erection and transportation device for a maglev track beam and a beam erection method to solve the problem that intermittent beam erection on a beam erection line is difficult to operate.

The present invention is achieved through the following technical solutions:

The maglev track beam erection and transportation device comprises a beam transport vehicle set, which is composed of two single vehicles;

The bicycle comprises a frame, a plurality of wheel groups arranged on the frame, and a bracket arranged on the frame, wherein the bracket is connected to the frame in a sliding manner so that the bracket can move up and down on the frame in a vertical direction;

The bracket is provided with a support arm, which is arranged on the frame in a cantilever structure along the horizontal direction, and the support arm is connected to the bracket in a sliding manner, so that the support arm can move horizontally toward both sides of the frame along its longitudinal direction;

A lifting drive mechanism for driving the lifting movement of the bracket is arranged between the frame and the bracket;

A horizontal driving mechanism for driving the support arm to move horizontally is provided between the bracket and the support arm;

The supporting arms of two single vehicles are connected to form a beam transport vehicle group.

In some embodiments, the two bicycle arms are connected by an interlocking mechanism, which locks and connects the two arms when subjected to relative squeezing force from the arms, and unlocks and separates the two arms when the arms move away from each other.

In some embodiments, the interlocking mechanism includes a lock body disposed on a supporting arm, the lock body is provided with a lock slot and a lock head matched with the lock slot, the lock bodies on the two supporting arms cooperate with each other to form a lock, and locking components for limiting the lock body in the lock slot are arranged on both sides of the lock slot in a relative manner;

The locking assembly includes a slide and a locking rod assembly. The slide is made of an elastic metal sheet. The locking rod assembly includes a locking rod that slides with the lock body. A spring is arranged between the lock body and the locking rod. The spring provides a force for the locking rod to move toward the slide, so that the locking rod protrudes the slide toward the center of the lock groove.

In some embodiments, an anti-slip mechanism is provided on the support arm, and the anti-slip mechanism utilizes the π-shaped beam structure of the maglev track beam to stably connect the support arm, the bicycle and the maglev track beam.

In some embodiments, the anti-slip mechanism includes a hydraulic cylinder and an anti-slip bracket connected to a driving end of the hydraulic cylinder, and the anti-slip bracket can extend into a groove in the maglev track beam.

In some embodiments, further comprising a control system;

The bicycle comprises a driving mechanism for driving the wheel set to rotate;

The control system includes an independent control module and a linkage control module. The independent control module is used to independently control the driving mechanism of each single vehicle, and the linkage control module is used to linkage control the driving mechanisms of the two single vehicles of the beam transport vehicle group.

In some embodiments, when the supporting arms of two bicycles are locked by the interlocking mechanism, the control system automatically switches to the control of the linkage control module;

When the interlocking mechanism between the supporting arms of the two bicycles is unlocked, the control system automatically switches to control by the independent control module.

On the other hand, the present invention further provides a beam erection method, using the beam erection and transportation device, comprising the following steps:

At least two beam transport vehicle groups are used to load the beams;

When it is necessary to pass the position where the beam has been erected, control the supporting arm to lift the height of the upper beam of the beam transport vehicle group so that the beam can pass the position where the beam has been erected and deliver the beam to the position to be erected;

Control the supporting arm to lower the height of the upper beam of the beam transport vehicle and place the beam on the support where the beam is to be erected;

Release the connection between the supporting arms of the two vehicles on the beam transport vehicle group, control the supporting arms to move horizontally along the transverse direction of the beam, and pull the supporting arms of the two vehicles out from the bottom of the beam respectively.

In some embodiments, each bicycle is moved to the position where the beam is located, and two bicycles used to form a beam transport vehicle group are arranged opposite to each other on both sides of the beam, and the support arms are controlled to move so that the support arms are respectively extended into the bottom of the beam and the support arms of the two bicycles are connected to form a beam transport vehicle group;

Control the supporting arms of the beam transport vehicle group to lift simultaneously to complete the loading of the beams.

In some embodiments, a three-dimensional adjustment jack is provided at the position where the beam is to be erected, and the beam is placed on the three-dimensional adjustment jack;

The position of the beam is adjusted by a three-dimensional adjustment jack. After the beam is adjusted into place, the beam is placed on the support.

In some embodiments, the step of adjusting the position of the beam by the three-dimensional adjustment jack includes:

Install a target mirror on the beam surface detection point of the beam, measure the position of the target mirror through the GTS laser tracker, compare the measured data with the target position data, control the movement of the three-dimensional adjustment jack, and adjust the beam to the target position.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

The use of the beam erection and transportation device can change the height of the beam so that the beam can cross the erected beam position and be transported to the position to be erected. After the beam is placed at the position to be erected, the connection between the two vehicles of the beam transport vehicle group is released, and the support arm is pulled out from the bottom of the beam, so that each vehicle can withdraw from the corresponding position, thereby greatly facilitating the transportation and beam erection operations of the maglev track beam.

The invention is not only applicable to the transportation and beam erection operation of the magnetic levitation track beam on the beam body, but also can meet the transportation and beam erection requirements of the magnetic levitation track beam in the roadbed or tunnel.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

FIG. 1 is a schematic structural diagram of a beam erection and transportation device according to an embodiment of the present invention.

FIG. 2 is a side view of a single vehicle structure in a beam transport device according to an embodiment of the present invention.

FIG. 3 is a front view of a single vehicle structure in a beam transport device according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of the structure of the interlocking mechanism in the beam transport device according to an embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a beam transporting state of a beam erection and transporting device in an embodiment of the present invention.

FIG6 is a schematic structural diagram of another beam transporting state of the beam erection and transporting device in an embodiment of the present invention.

FIG. 7 is a side view of the structure shown in FIG. 5 and FIG. 6 in the beam transport state.

FIG8 is a schematic structural diagram of a beam erection operation in one state according to an embodiment of the present invention.

FIG. 9 is a schematic structural diagram of another state of beam erection operation in an embodiment of the present invention.

10 is a front view of the structure of the beam position adjustment operation during the beam erection operation according to an embodiment of the present invention.

11 is a top view of the structure of the beam position adjustment operation during the beam erection operation in an embodiment of the present invention.

FIG. 12 is a front view of the three-dimensional adjustment jack structure in an embodiment of the present invention.

13 is a schematic diagram of the longitudinal electric push rod arrangement structure on the three-dimensional adjustment jack in an embodiment of the present invention.

in:

10, beam, 101, trough, 11, beams erected, 12, beams to be erected;

20. beam transport vehicle group, 21. single vehicle, 211. vehicle frame, 212. bracket, 213. supporting arm, 214. chassis, 215. wheel group, 216. horizontal driving mechanism;

30. interlocking mechanism, 31. lock body, 32. slide plate, 33. lock rod, 34. spring, 35. lock slot, 36. lock head;

40. Anti-slip mechanism, 41. Hydraulic cylinder, 42. Anti-slip bracket;

50. Three-dimensional adjustment jack, 51. Base, 52. Sliding seat, 53. Sliding wedge, 54. Horizontal electric push rod, 55. Vertical electric push rod, 56. Longitudinal electric push rod, 57. Notch;

61. GTS laser tracker, 62. Target mirror.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

In view of the construction characteristics of intermittent beam erection of the maglev track beam in the beam-rail separated maglev track beam structure, in order to solve the problem that intermittent beam erection on the beam erection line is difficult to operate, the beam erection and transportation device in the present invention changes the height of the beam so that the beam can cross the erected beam position and transport the beam to the position to be erected. After the beam is placed at the position to be erected, the connection between the two vehicles of the beam transport vehicle group is released, and the support arm is pulled out from the bottom of the beam to facilitate the withdrawal of each vehicle from the corresponding position, thereby well solving the above-mentioned existing problems.

In some embodiments, referring to FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 , and FIG. 6 , a maglev rail beam transport device comprises a plurality of beam transport vehicle groups 20 , each beam transport vehicle group 20 being composed of two single vehicles 21 ;

The bicycle 21 includes a frame 211, a plurality of wheel sets arranged on the frame and a bracket 212 arranged on the frame. The bracket 212 is connected to the frame 211 by sliding fit, so that the bracket can move up and down on the frame in a vertical direction; wherein the frame 211 and the wheel sets 215 are respectively arranged on the chassis 214.

A support arm 213 is provided on the bracket 212. The support arm 213 is arranged on the frame in a cantilever structure along the horizontal direction. The support arm 213 and the bracket 212 are connected by a sliding fit, so that the support arm can move horizontally toward both sides of the frame along its longitudinal direction, that is, it can move in a direction perpendicular to the movement direction of the bicycle and the bracket 212.

A lifting drive mechanism for driving the lifting movement of the bracket is arranged between the frame 211 and the bracket 212. The lifting drive mechanism here can adopt a hydraulic cylinder or a pneumatic cylinder or an electric strut that can drive the bracket to achieve the lifting and lowering adjustment of the position of the bracket on the frame. Of course, the lifting drive mechanism here can also adopt a screw transmission mechanism, which can also achieve the lifting and lowering adjustment of the bracket.

A horizontal driving mechanism 216 for driving the horizontal movement of the supporting arm is provided between the bracket 212 and the supporting arm 213. The horizontal driving mechanism here can adopt a screw transmission structure, and the movement of the supporting arm in the horizontal direction is controlled by the rotation of the screw, and the supporting arm can have a large movement stroke in this direction. Of course, a driving device such as an electric push rod can also be used to drive the supporting arm, which can also achieve the above-mentioned adjustment function.

The supporting arms 213 of the two single vehicles 21 are connected to form a beam transport vehicle group 20.

The beam erection and transportation device can change the height of the beam so that the beam can cross the erected beam position and transport the beam to the position to be erected. After the beam is placed at the position to be erected, the connection between the two vehicles of the beam transport vehicle group is released and the support arm is pulled out from the bottom of the beam, so that each vehicle can withdraw from the corresponding position, thereby greatly facilitating the transportation and beam erection operations of the maglev track beam.

In some embodiments, the support arms 213 of two bicycles 21 are connected via an interlocking mechanism 30. The interlocking mechanism 30 is locked and connects the two support arms when subjected to relative squeezing force from the support arms, and is unlocked and separates the two support arms when the support arms move away from each other.

As a structure of an interlocking mechanism to achieve the above-mentioned function, the interlocking mechanism may include a lock body 31 arranged on a supporting arm, a lock groove 35 and a lock head 36 matched with the lock groove are arranged on the lock body 31, the lock bodies 31 on the two supporting arms cooperate with each other to form a lock, and locking components for limiting the lock body in the lock groove are arranged on both sides of the lock groove 35 in a relative manner;

Among them, the locking assembly may include a slide 32 and a locking rod assembly. The slide 32 is made of elastic metal sheet. The locking rod assembly includes a locking rod 33 that slides with the lock body. A spring 34 is arranged between the lock body 31 and the locking rod 33. The spring provides a force for the locking rod to move in the direction of the slide, so that the locking rod protrudes the slide toward the center of the lock groove, restricts the lock head 36 in the groove, and realizes the connection and locking between the two lock bodies.

In this interlocking mechanism, under the squeezing force between the two support arms, the lock head on one lock body is pressed into the lock groove on the other lock body, and the lock head is locked in the lock groove through the locking assembly. At this time, the connection between the lock bodies on the two support arms is realized, and the connection between the two support arms is realized.

In some embodiments, an anti-slip mechanism 40 is provided on the support arm 213, and the anti-slip mechanism 40 utilizes the π-shaped beam structure of the maglev track beam to stably connect the support arm, the bicycle and the maglev track beam.

As an implementable structure, the anti-slip mechanism 40 includes a hydraulic cylinder 41 and an anti-slip bracket 42 connected to the driving end of the hydraulic cylinder, and the anti-slip bracket 42 can extend into the groove 101 in the maglev track beam 10. Combined with the π-shaped structural characteristics of the maglev track beam, the anti-slip brackets are driven by the hydraulic cylinder to move toward the outside of the beam. At this time, the anti-slip brackets on the two vehicles respectively apply outward forces to the maglev track beam, thereby forming a stable connection between the maglev track beam and the beam transport vehicle group, and at the same time, the connection between the two vehicles of the beam transport vehicle group can be made more stable, so that the two vehicles and the beam form a good overall structure, ensuring stability and safety during transportation.

In some embodiments, further comprising a control system;

The bicycle includes a driving mechanism for driving the wheel set to rotate. The driving mechanism may be a motor, which drives the wheel set to rotate and provides a power source for the movement of the bicycle.

The control system includes an independent control module and a linkage control module. The independent control module is used to independently control the driving mechanism of each vehicle, that is, only the movement of one vehicle can be controlled individually; the linkage control module is used to linkage control the driving mechanism of the two vehicles of the beam transport vehicle group, that is, it can realize synchronous control of the two vehicles, so that the two vehicles can maintain good synchronization when the beam transport vehicle group is transporting beams.

When the arms of the two vehicles are locked by the interlocking mechanism, the control system automatically switches to the control mode of the linkage control module; when the interlocking mechanism between the arms of the two vehicles is unlocked, the control system automatically switches to the control mode of the independent control module. This can effectively avoid misoperation during the beam transport operation and ensure the safety of on-site equipment and personnel.

On the other hand, the present invention also provides a beam erection method, which adopts the beam erection and transportation device in the above embodiment.

In some embodiments, referring to FIGS. 7 , 8 and 9 , the beam erection method includes the following steps:

At least two beam transport vehicle groups are used to load the beams;

When it is necessary to pass the position where the beam has been erected, control the supporting arm to lift the height of the upper beam of the beam transport vehicle group so that the beam can pass the position where the beam has been erected and deliver the beam to the position to be erected;

Control the supporting arm to lower the height of the upper beam of the beam transport vehicle and place the beam on the support where the beam is to be erected;

Release the connection between the supporting arms of the two vehicles on the beam transport vehicle group, control the supporting arms to move horizontally along the lateral direction of the beam, pull the supporting arms of the two vehicles out from the bottom of the beam respectively, complete the beam erection operation, and then control each vehicle to withdraw respectively.

After placing the beam to be erected on the support, the function of the support arm to move laterally in the horizontal direction can prevent interference between the bicycle and the support or other devices when exiting, thereby facilitating the withdrawal of the bicycle after the beam erection is completed, making the on-site operation of the beam erection and transportation device more convenient and better meeting the requirements of on-site beam erection construction.

The beam transport vehicle group can use the following methods to load the beams during the beam transport operation:

Each bicycle is moved to the position where the beam is located, and two bicycles used to form a beam transport vehicle group are arranged opposite to each other on both sides of the beam, and the support arms are controlled to move so that the support arms are respectively extended into the bottom of the beam, so that the two support arms are connected through an interlocking mechanism to form a beam transport vehicle group;

Control the supporting arms of the beam transport vehicle group to lift simultaneously to complete the loading of the beams.

In this way, the structural characteristics of the beam erection and transportation device can be utilized to realize the loading and transportation operations of the beams placed on the platform.

Of course, after setting the positions of each beam transport vehicle group and the height of the upper support arm of the beam transport vehicle group, the beams can be hoisted onto the beam transport vehicle group by a crane to achieve loading of the beams.

In some embodiments, in order to facilitate the adjustment of the beam position so as to adjust the beam to the designed position, a three-dimensional adjustment jack is provided at the position where the beam is to be erected, and the beam is placed on the three-dimensional adjustment jack;

The position of the beam is adjusted by a three-dimensional adjustment jack. After the beam is adjusted into place, the beam is placed on the support.

The three-dimensional adjustable jack here can adopt a three-dimensional adjustable jack device such as that in CN104894977A, or other existing structures.

12 and 13, a structure of a three-dimensional adjustment jack is shown. The three-dimensional adjustment jack 50 includes a base 51, a sliding seat 52 arranged on the base, and two sliding wedges 53 arranged in the sliding seat; two transverse electric push rods 54 are arranged between the base 51 and the sliding seat 52, and the two transverse electric push rods 54 are arranged on both sides of the sliding seat 52. The sliding seat is pushed to move in the transverse direction by the two transverse electric push rods to adjust the position of the sliding wedges in the transverse direction; the wedge-shaped surfaces of the two sliding wedges 53 cooperate with each other and are stacked on the sliding seat 52. A vertical electric push rod 55 is arranged between the sliding wedge block 53 at the bottom and the base 51. When the sliding wedge block 53 is driven to move in the horizontal direction by the vertical electric push rod, the sliding wedge block at the top is driven to move in the vertical direction through the cooperation between the two sliding wedge blocks 53, so as to adjust the position of the sliding wedge block in the vertical direction; a longitudinal electric push rod 56 is arranged between the sliding wedge block 53 at the top and the sliding seat 52. When the sliding wedge block is driven to slide on another sliding wedge block by the longitudinal electric push rod, the position of the sliding wedge block in the longitudinal direction is adjusted.

In the transverse direction, the sliding wedge 53 cooperates with the sliding seat 52 to limit the movement of the sliding wedge 53 located above in the sliding seat along the transverse direction. Accordingly, a slot 57 can be set on the sliding seat 52 to provide space for the sliding wedge to move in the transverse direction in the sliding seat.

When the beam is placed on the three-dimensional adjustment jack, the sliding wedge located above supports the beam. The position of the sliding seat and the sliding wedge is adjusted by the horizontal electric push rod, the vertical electric push rod and the longitudinal electric push rod, so that the beam at this position can be adjusted in three directions.

In some embodiments, referring to FIG. 10 and FIG. 11 , the step of adjusting the position of the beam by the three-dimensional adjustment jack includes:

A target mirror 62 is installed at the beam surface detection point of the beam to be erected 12, and a GTS laser tracker 61 is installed on the track beam at the position of the erected beam 11. The position of the target mirror is measured by the GTS laser tracker, and the measurement data is transmitted to the measurement control system. By comparing the measurement data with the target position data, the measurement control system automatically controls the action of the three-dimensional adjustment jack to adjust the beam to the target position.

The GTS laser tracker system consists of a computer, a tracking measurement station, and a target mirror. It combines the angle measurement in the horizontal and vertical directions with the distance measurement to form a spherical coordinate measurement system. The target mirror is used to obtain the information of the measurement points of the spatial geometric elements, and the three-dimensional data analysis software is used to complete the analysis and calculation of the dimensions, dimensional tolerances, form and position tolerances, spatial surfaces and curves of the spatial geometric elements, so as to achieve the measurement of the beam position. According to the automatic positioning and capture measurement function of the GTS laser tracker, not only the measurement automation is realized, but also the measurement accuracy of the GTS laser tracker is as high as μm level, which fully meets the design error requirements of high-speed maglev in terms of accuracy. In terms of measurement, the GTS laser tracker is small, easy to carry, simple to operate, and occupies a small area. It saves time and reduces the input of measurement personnel during the measurement process. The measured data can be directly fed back to the computer, and the three-dimensional adjustment jack can be directly instructed through the computer.

In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship commonly placed when the product of the invention is used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims (11)

1. The beam transportation device of the magnetic levitation track beam is characterized by comprising a transportation Liang Chezu and a transportation Liang Chezu, wherein the transportation Liang Chezu consists of two bicycles;

The bicycle comprises a frame, a plurality of groups of wheel groups arranged on the frame and a bracket arranged on the frame, wherein the bracket is connected with the frame in a sliding fit manner, so that the bracket can move up and down on the frame along the vertical direction;

The bracket is provided with a bracket arm which is arranged on the frame in a cantilever structure along the horizontal direction, and the bracket arm is connected with the bracket in a sliding fit manner, so that the bracket arm can horizontally move towards two sides of the frame along the longitudinal direction;

A lifting driving mechanism for driving the bracket to move up and down is arranged between the frame and the bracket;

a horizontal driving mechanism for driving the bracket arm to horizontally move is arranged between the bracket and the bracket arm;

the supporting arms of the two bicycles are connected to form a carrying Liang Chezu.

2. The apparatus of claim 1, wherein the two bicycle brackets are connected by an interlocking mechanism that locks and connects the brackets when subjected to a relative compressive force of the brackets, unlocks and separates the brackets when moved relatively far apart.

3. The transportation device for the magnetic levitation track beam frame according to claim 2, wherein the interlocking mechanism comprises lock bodies arranged on the supporting arms, lock grooves and locking heads matched with the lock grooves are arranged on the lock bodies, the lock bodies on the two supporting arms are mutually matched to form locking, and locking components used for limiting the lock bodies in the lock grooves are oppositely arranged on two sides in the lock grooves;

The locking assembly comprises a sliding sheet and a locking rod assembly, the sliding sheet is made of an elastic metal sheet, the locking rod assembly comprises a locking rod in sliding fit with a lock body, a spring is arranged between the lock body and the locking rod, and the spring provides acting force for the locking rod to move towards the sliding sheet direction, so that the locking rod protrudes out of the sliding sheet towards the center of a locking groove.

4. The beam transportation device for the magnetic levitation track beam according to claim 1, wherein the bracket arm is provided with an anti-disengaging mechanism, and the anti-disengaging mechanism utilizes a pi-shaped beam structure of the magnetic levitation track beam to stably connect the bracket arm, the bicycle and the magnetic levitation track beam.

5. The beam transport device for the magnetic levitation track beam according to claim 4, wherein the anti-disengaging mechanism comprises a hydraulic cylinder and an anti-disengaging bracket connected to the driving end of the hydraulic cylinder, and the anti-disengaging bracket can extend into a groove in the magnetic levitation track beam.

6. The magnetically levitated track beam-transporting apparatus of claim 1, further comprising a control system;

The bicycle comprises a driving mechanism for driving the wheel set to rotate;

The control system comprises an independent control module and a linkage control module, wherein the independent control module is used for independently controlling driving mechanisms of all the bicycles, and the linkage control module is used for carrying out linkage control on driving mechanisms of two bicycles of Liang Chezu.

7. The apparatus according to claim 6, wherein the control system is automatically switched to the control of the interlock control module when the trailing arms of the two bicycles are locked by the interlock mechanism;

when the interlocking mechanism between the supporting arms of the two bicycles is unlocked, the control system is automatically switched to be controlled by the independent control module.

8. A girder erection method, characterized in that the girder erection transportation device according to any one of claims 1 to 7 is adopted, comprising the steps of:

Loading the beam by means of transport Liang Chezu using at least two sets of transport Liang Chezu;

When the beam is required to pass over the erected beam position, controlling the height of the upper beam of the bracket arm lifting carriage Liang Chezu, so that the beam can pass over the erected beam position, and conveying the beam to the beam position to be erected;

controlling the supporting arm to lower the height of the girder on the carrying Liang Chezu, and placing the girder on a support seat at the girder position to be erected;

and (3) the connection between the supporting arms of the two bicycles on the beam transporting set is released, the supporting arms are controlled to move along the transverse direction of the beam in the horizontal direction, and the supporting arms of the two bicycles are respectively pulled out from the bottom of the beam.

9. The girder erection method according to claim 8, wherein each bicycle is moved to a position where the girder is located, and two bicycles for constituting the transportation Liang Chezu are disposed opposite to each other on both sides of the girder, the movement of the supporting arms is controlled such that the supporting arms respectively extend into the bottom of the girder and the supporting arms of the two bicycles are connected to form the transportation Liang Chezu;

and controlling the supporting arms of the carrying Liang Chezu to lift simultaneously, and completing the loading of the beam.

10. The girder erection method according to claim 8, wherein a three-dimensional adjusting jack is provided at a girder erection site, and the girder is placed on the three-dimensional adjusting jack;

The position of the beam is adjusted by the three-dimensional adjusting jack, and the beam is placed on the support after being adjusted in place.

11. The girder erection method of claim 10, wherein the step of adjusting the position of the girder by the three-dimensional adjusting jack comprises:

and installing a target mirror on a beam surface detection point of the beam, measuring the position of the target mirror by using a GTS laser tracker, comparing the measured data with target position data, controlling the action of a three-dimensional adjusting jack, and adjusting the beam to the target position.