CN114684709A - Gantry group-hoisting operation method for track line - Google Patents

Abstract

The invention discloses a rail line gantry group-hoisting operation method, wherein a plurality of gantry cranes are longitudinally fixed on a first transport flat car through rotary mounting seats, new turnouts and hoisting tools are placed on a second transport flat car and are transported to designated positions of an operation site through a rail car. And the first transport flat car is pulled through the rail car, and the gantry cranes are sequentially deployed to the specified positions of the line by utilizing the rotary mounting seats. And the rail car pulls the second transport flat car to move to a specified position, the hoisting tool is connected with the hoisting mechanisms of the gantry cranes to realize group hoisting operation, and the hoisting tool moves and hoists a new turnout. The rail car pulls the first transport flat car and the second transport flat car to drive away, and the new turnout is transversely moved to one side close to the supporting legs through group hoisting by the aid of the gantry cranes. The invention can solve the technical problems of single function, low synchronous control precision, lack of load consistency control of the final position and the operation process of each crane and inconvenience for operation and maintenance of the existing method.

Description

A kind of rail line gantry group crane operation method

technical field

The invention relates to the technical field of railway construction machinery, in particular to a track line gantry group crane operation method for ballastless tracks of high-speed railways.

Background technique

Whether it is an existing line or a high-speed railway line, heavy objects need to be lifted when these railway lines are maintained or replaced. In particular, the replacement of large components on the track line requires the use of lifting equipment. These large components, such as turnout components, track slabs and rails, are often long and slender, and have poor rigidity. Special equipment is required for lifting operations. At present, rail cranes are mainly used for lifting heavy objects on rail lines in my country, and truck cranes and other simple spreaders can be used in places where operations are convenient. However, these equipments and machines all have common shortcomings: First, rail cranes are expensive and easy to touch the catenary, occupying adjacent line space, low operation safety, and unable to hoist long-sized line components; The place cannot be reached, the application situation is limited, and the lifting and transportation of long-sized circuit components cannot be realized; third, simple tools need to be assembled on site, which is inconvenient to use, and the operation efficiency is low, and the lifting and transportation of long-sized circuit components cannot be realized.

In the prior art, the following technical solutions are mainly related to the present invention:

Prior art 1 is a Chinese utility model patent filed by Shaanxi Jiangfeng Construction Engineering Co., Ltd. on April 29, 2014, and announced on November 19, 2014, with the announcement number of CN203950150U. The utility model discloses a synchronous control system for a group crane, comprising a control terminal, a main controller, a sub-controller, and a remote monitoring computer. The main controller is used for executing commands from the control terminal and receiving information fed back by the sub-controllers; Execute the command of the main controller and receive the information collected by the tension sensor; the wireless communication control method is adopted between the control terminal, the main controller and the remote monitoring computer; the main controller receives the control instructions sent by the remote monitoring computer, and realizes the control of all electric hoists. The control of the forward/reverse/stop of the motor; an A/D converter is provided to collect the output signal of the tension sensor, send it to the microcontroller through the SPI interface, convert it into a tension signal, and then send it to the remote monitoring computer for display to the user. The system is easy to operate, improves the safety performance of the group crane system, has overload and shutdown alarms, and has a response speed of milliseconds. However, the group crane synchronization control system of the prior art 1 is applied to the construction industry, and its control object is a tower crane, the synchronization control precision is not high, the system integration degree is low, and it is inconvenient to operate and maintain. The invention involves not many control items, but only controls the synchronization of a certain direction, with a single function; and lacks the consistent control of the final position of each crane in the group crane; There is a lack of control over the consistency of loads during operations between individual hoists.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide a rail line gantry group crane operation method, so as to solve the problem that the existing group crane method has single function, low synchronous control precision, and lacks the consistency of the final position of each crane and the load during the operation. performance control, technical problems that are inconvenient for operation and maintenance.

In order to achieve the above-mentioned purpose of the invention, the present invention specifically provides a technical implementation scheme of a rail line gantry group crane operation method, and the track line gantry group crane operation method includes the following steps:

S101) Several gantry cranes are longitudinally fixed on the first transport flat car through the rotating mounting seat, and the new switch and the lifting tool are placed on the second transport flat car, and transported to the designated position on the job site by rail car;

S102) pulling the first transport flat car by the rail car, and deploying the gantry crane to the designated position of the line in turn by using the rotating mounting seat;

S103) The rail car pulls the second transport flat car to move to a designated position, and the hoisting tool is connected with the hoisting mechanisms of several gantry cranes to realize group hoisting operation, and the hoisting tool moves and lifts the new switch;

S104) The rail car pulls the first transport flat car and the second transport flat car away, and several gantry cranes are used for group lifting to move the new turnout laterally to the side against the outriggers.

Further, the step S102) includes:

S1021) The rail car pulls the first transport flat car to move to the placement position of the first gantry crane, and the rotating mounting seat rotates 90° until the gantry crane is perpendicular to the line direction;

S1022) The outriggers of the gantry crane are moved to a designated position along the beam, and the swivel mounting base drives the gantry crane to descend; the outriggers are extended downward to be close to the ground, the locking of the gantry crane by the swivel installation base is released, and the support The legs continue to be extended and leveled to complete the deployment of a gantry crane;

S1023) The rail car pulls the first transport flat car to move in sequence, and step S1022) is repeated until all the gantry cranes are deployed to the designated position.

Further, the following process is also included after the step S104):

S105) Cut the rail, remove the fastener, and remove the old turnout;

S106) moving the hoisting tool to the old turnout by the gantry crane and hanging it, and placing the old turnout on the outrigger on the other side of the gantry crane;

S107) Move the hoisting tool to the new turnout by the gantry crane and hang it, and place the new turnout at the position of the old turnout; weld the new turnout with the rail, install the fastener, and the line is restored.

Further, the following process is also included after the step S107):

S108) moving the hoisting tool to the old turnout by the gantry crane and hanging it;

S109) the rail car pulls the second transport flat car into;

S110) Move the old switch and place it on the designated position of the second transport flat car through the hoisting tool.

Further, the following process is also included after the step S110):

S111) The rail car pulls the first transport flat car to move to the bottom of the gantry crane at the last position, and the beam of the gantry crane is aligned with the groove position of the rotating mounting seat;

S112) the outriggers of the gantry crane are contracted to the grooves where the beam enters the rotary mounting seat and is fixed;

S113) The outriggers of the gantry crane continue to shrink to the initial position, and the outriggers move to the initial position along the beam;

S114) Repeat steps S111) to S113) to complete the recovery process of the remaining gantry cranes;

S115) The rotating mounting base is rotated until the gantry crane is longitudinally fixed, and the rail car pulls the first flat carriage and the second flat carriage away.

Further, during the hoisting operation of the new turnout or the old turnout, synchronous control of lateral movement and vertical movement of the gantry hoisting and hoisting the new turnout is performed.

Further, the step S102) also includes:

After the first gantry crane is deployed in place, the gantry cranes deployed later acquire the distance from the adjacently arranged gantry cranes through the second distance sensors arranged on the two sliding frames or the outriggers, and adjust the rotating mounting seat by adjusting the gantry crane. The rotation angle of the two gantry cranes meets the parallelism requirements between the beams of the two gantry cranes.

Further, a first distance sensor is arranged on the hoisting mechanism, and when the gantry crane performs the hoisting operation, the first distance sensor obtains the distance between the hoisting mechanism and the outrigger, and controls the outrigger on the same side of each gantry crane by controlling the distance between the hoisting mechanism and the outrigger. The distance difference between the hoisting mechanism and the hoisting mechanism meets the set requirements, so as to realize the lateral position alignment when multiple gantry cranes synchronously hoist the turnout.

Further, an adjustable support foot is arranged at the lower part of the support leg, and the leveling function of the support leg and the gantry crane is realized through the adjustable support foot. A tilt sensor is arranged on the beam, and the tilt state data of the gantry crane is obtained through the tilt sensor during the deployment process of the gantry crane, and the leveling of the beam is realized by fine-tuning the adjustable feet.

Further, a force sensor is arranged on the hoisting mechanism, and when the gantry crane starts to hoist the new switch or the old switch, the hoisting mechanism of each gantry crane takes the value collected by the force sensor at this time as the reference value. If the change value in the subsequent hoisting process exceeds the standard value, by adjusting the motor speed of the hoisting mechanism, the collected value of the force sensor of the hoisting mechanism during the hoisting process is maintained to be basically the same as the reference value, so that multiple gantry cranes can synchronously hoist the turnout vertical stability control.

Further, the lifting tool includes a bearing beam, a mounting frame, a lifting ring and a lifting claw. The hoisting mechanism includes a hook that can move up and down in the vertical direction, the hoisting ring is arranged on the upper part of the bearing beam, and the hoisting hook is connected with the hoisting ring. The mounting bracket is arranged at the lower part of the bearing beam, and the hanging claws are arranged on the left and right sides of the mounting bracket along the line direction.

Further, the mounting frame and the bearing beam are movably connected, the two ends of the bearing beam along the line direction are provided with sprockets, and the two sprockets are connected by a chain. The chain is connected with the mounting frame, and one of the sprockets is driven to rotate by a longitudinal movement mechanism, and the rotation of the sprocket drives the chain to move in the direction of the line, thereby realizing the longitudinal movement of the mounting frame.

By implementing the technical scheme of the rail line gantry group crane operation method provided by the present invention, the following beneficial effects are obtained:

(1) The gantry group crane operation method of the track line of the present invention, the gantry crane has the functions of lateral movement, lifting and leveling of the outriggers, and the lateral span spacing of the outriggers, the height from the ground, the lifting position and the height can be precisely adjusted, which can meet the needs of different lines. The function required by ground conditions, and the height of the gantry crane is adjustable, there is no risk of touching the catenary during the lifting process, which is convenient for consistent control operation and maintenance;

(2) The operation method of the gantry group crane of the track line of the present invention is suitable for the replacement of the whole group of turnouts as well as the replacement of a single pointed rail, a switch center, etc., and the transportation of various line components of different lengths can be realized through the combination of multiple gantry cranes , placement, position adjustment and replacement; and the replacement of line components will not occupy the adjacent line space, the operation is flexible, there is no operation safety risk, and it can well adapt to the operation needs under complex line conditions;

(3) The operation method of the rail line gantry group crane of the present invention has the advantages of simple structure, high reliability, easy maintenance and repair, low manufacturing cost, high operation efficiency, small occupied space and light weight of the gantry crane, and the placement and recovery can be realized by the lifting platform, The transportation, placement, operation and recycling of the gantry crane can be controlled by wireless, with a high degree of integration and intelligence, and the operation efficiency is further improved;

(4) In the operation method of the rail line gantry group crane of the present invention, the inclination of the beam of the gantry crane is fed back by the inclination sensor, and the height of the outrigger is fine-tuned to make the inclination of the beam meet the requirements; by installing the distance measurement on the two legs or the sliding frame of the gantry crane The sensor can ensure the parallelism requirements of the front and rear gantry crane deployment; the hoisting mechanism is equipped with a lateral position sensor, so that the horizontal position of each hook is consistent; the hoisting mechanism shaft is equipped with a force sensor, which can meet the stability requirements of synchronous lifting.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other embodiments can also be obtained according to these drawings without creative efforts.

Fig. 1 is the three-dimensional structure schematic diagram of the gantry crane in a specific embodiment of the rail line gantry hoisting device on which the method of the present invention is based;

Fig. 2 is the front structure schematic diagram of the gantry crane in a specific embodiment of the rail line gantry hoisting device on which the method of the present invention is based;

Fig. 3 is the side structure schematic diagram of the gantry crane in a specific embodiment of the rail line gantry hoisting device on which the method of the present invention is based;

4 is a perspective view of the side structure of the gantry crane in a specific embodiment of the rail line gantry hoisting device on which the method of the present invention is based;

5 is a schematic top view of the structure of a gantry crane in a specific embodiment of a rail line gantry hoisting device on which the method of the present invention is based;

6 is a schematic diagram of the lateral structure of a hoisting tool in a specific embodiment of the rail line gantry hoisting device on which the method of the present invention is based;

Fig. 7 is the longitudinal structural schematic diagram of the hoisting tool in a specific embodiment of the rail line gantry hoisting device on which the method of the present invention is based;

8 is a schematic three-dimensional structural diagram of a hoisting tool in a specific embodiment of a rail line gantry hoisting device on which the method of the present invention is based;

9 is a schematic diagram of the installation structure of a gantry crane in a specific embodiment of a rail line gantry hoisting device on which the method of the present invention is based;

10 is a schematic structural diagram of a rotary mounting seat in a specific embodiment of the track line gantry group crane system on which the method of the present invention is based;

11 is a schematic three-dimensional structural diagram of a rotary mounting seat in a specific embodiment of a rail line gantry group crane system on which the method of the present invention is based;

12 is a schematic bottom view of the structure of the rotary mounting seat in a specific embodiment of the track line gantry group crane system on which the method of the present invention is based;

Fig. 13 is the side structure schematic diagram of the rotary mounting seat in a specific embodiment of the track line gantry group crane system on which the method of the present invention is based;

14 is a schematic side view of the structure of the rotary mounting seat from another perspective in a specific embodiment of the track line gantry group crane system on which the method of the present invention is based;

15 is a schematic structural diagram of a wireless remote control device in a specific embodiment of a track line gantry group crane system on which the method of the present invention is based;

16 is a schematic structural diagram of a specific embodiment of a rail line gantry group crane system based on the method of the present invention from a side view perspective;

17 is a schematic structural diagram of a specific embodiment of the track line gantry group crane system based on the method of the present invention from a top view;

Fig. 18 is a schematic diagram of a gantry crane transportation step in a specific embodiment of the rail line gantry group crane operation method of the present invention from a side view perspective;

19 is a schematic diagram of the transport steps of the gantry cranes in a specific embodiment of the rail line gantry group crane operation method of the present invention from a top view;

20 is a schematic diagram of the step of rotating the gantry crane to the lateral direction in a specific embodiment of the rail line gantry group crane operation method of the present invention from a side view perspective;

Fig. 21 is a schematic diagram of the step of rotating the gantry crane to the horizontal in a specific embodiment of the rail line gantry group crane operation method of the present invention from a top view;

22 is a schematic diagram of the step of telescopically disembarking the gantry crane in a specific embodiment of the rail line gantry group crane operation method of the present invention from a side view perspective;

Fig. 23 is a schematic diagram of the telescopic alighting step of the gantry crane in a specific embodiment of the rail line gantry group crane operation method of the present invention from a top view;

24 is a schematic diagram of the lifting step of the new switch in a specific embodiment of the rail line gantry group lifting operation method of the present invention from a side view perspective;

25 is a schematic diagram of the lifting step of a new switch in a specific embodiment of the rail line gantry group lifting operation method of the present invention from a top view;

26 is a schematic diagram of a new switch placement step in a specific embodiment of the track line gantry group crane operation method of the present invention from a side view perspective;

Figure 27 is a schematic diagram of a new switch placement step in a specific embodiment of the track line gantry crane operation method of the present invention from a top view;

Fig. 28 is a schematic diagram of the dismantling step of the old switch in a specific embodiment of the rail line gantry group crane operation method of the present invention from a top view;

29 is a schematic diagram of the lifting and placing steps of the old turnout in a specific embodiment of the rail line gantry group hoisting operation method of the present invention from a top view;

30 is a schematic diagram of the installation steps of a new switch in a specific embodiment of the rail line gantry group crane operation method of the present invention from a top view;

31 is a schematic diagram of the lifting step of the old switch in a specific embodiment of the rail line gantry group lifting operation method of the present invention from a side view perspective;

32 is a schematic diagram of the lifting step of the old turnout in a specific embodiment of the rail line gantry group lifting operation method of the present invention from a top view;

33 is a schematic view from a top view of a step of placing an old turnout on a flat car in a specific embodiment of the rail line gantry group crane operation method of the present invention;

34 is a schematic diagram of the step of driving the flat car to the recovery position of the gantry crane in a specific embodiment of the rail line gantry crane operation method of the present invention, from a side view perspective;

35 is a schematic view from a top view of the step of driving the flat car to the recovery position of the gantry crane in a specific embodiment of the rail line gantry group crane operation method of the present invention;

36 is a schematic diagram of the step of recovering the gantry crane to a flat car in a specific embodiment of the rail line gantry group crane operation method of the present invention from a side view perspective;

37 is a schematic view from a top view of the step of recovering the gantry crane to a flat car in a specific embodiment of the rail line gantry group crane operation method of the present invention;

Fig. 38 is a schematic diagram of the step of rotating the gantry crane to vertical fixing in a specific embodiment of the rail line gantry group crane operation method of the present invention, from a side view perspective;

39 is a schematic view from a top view of the step of rotating the gantry crane to the vertical fixing step in a specific embodiment of the rail line gantry group crane operation method of the present invention;

In the picture: 1-beam, 2-sliding frame, 3-sliding drive mechanism, 4-hoisting mechanism, 5-outrigger, 6-threaded barrel, 7-lifting drive mechanism, 8-adjustable foot, 9-screw , 10-support, 11-leg sleeve, 12-power cabinet, 13-bearing, 14-first distance sensor, 15-second distance sensor, 16-force sensor, 17-tilt sensor, 18-wedge lock Tightening mechanism, 19-lifting seat, 20-slewing bearing, 21-fixed mounting seat, 22-locking seat, 23-guide column seat, 24-lifting mechanism, 25-guide column, 26-locking mechanism, 27-slide Shifting mechanism, 28-groove, 29-stop, 30-guide protrusion, 31-guide groove, 32-rotation drive mechanism, 33-lifting tool, 34-turnout, 35-track plate, 36-bearing beam, 37-mounting frame, 38-hoisting ring, 39-lifting jaw, 40-rail car, 41-first transport flat car, 42-second transport flat car, 43-power unit, 44-new switch, 45-rail, 46 - Base, 47- Subgrade, 48- Longitudinal movement mechanism, 49- Fixed seat, 50- Sprocket, 51- Chain, 52- Locking mechanism, 53- Mounting seat, 54- Traverse support, 55- Hook, 56 -Old turnout, 57-wireless remote control device, 58-gantry crane operation area, 59-integrated operation operation area, 60-base plate, 100-gantry crane, 200-swivel mount.

Detailed ways

To make the purposes, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The following embodiments take the hoisting operation of railway turnout as an example to describe in detail the operation method of the track line gantry group hoisting operation of the present invention, but it should be noted that the technical solution of the present invention can also be applied to the hoisting operation of other track line components.

As shown in Figures 1 to 39, specific embodiments of the rail line gantry group crane operation method of the present invention are given, and the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Example 1

In order to solve the technical problems existing in the hoisting equipment for existing track lines, Embodiment 1 provides a gantry hoisting device for track lines based on gantry crane 100 hoisting with simple structure, low cost, and convenient and quick operation. The height-adjustable intelligent gantry crane can solve the technical problems of the existing lifting equipment for track lines. The rail line gantry hoisting device can use the skylight time to transport the gantry crane 100, the hoisting tool 33, and the objects that need to be operated (such as turnouts) to the job site for hoisting operation by using a transport flat car.

As shown in the accompanying drawings 1 to 9, an embodiment of the rail line gantry lifting device on which the method of the present invention is based specifically includes a gantry crane 100, and the gantry crane 100 further includes:

beam 1;

The sliding frames 2 are respectively movably arranged on the left and right ends of the beam 1, and the sliding frames 2 can move laterally along the beam 1 to adjust the lateral span of the gantry crane 100;

A hoisting mechanism 4 that is arranged on the beam 1 and is located between the two sliding frames 2 and can move laterally (as shown in the direction W in FIG. 1 ) along the beam 1 to adjust the hoisting position of the switch;

The outriggers 5 are respectively arranged below the two sliding frames 2 and can be extended and retracted along the vertical direction (as shown in the direction of H in FIG. 1 ) to adjust the height of the beam 1 from the roadbed 47;

The hoisting mechanism 4 is further provided with a first distance sensor 14 , and the first distance sensor 14 is used to obtain the distance between the hoisting mechanism 4 and the outriggers 5 , so as to realize the alignment of the lateral positions when the multiple gantry cranes 100 hoist the switch 34 . When the gantry crane 100 performs the hoisting operation, the first distance sensor 14 obtains the distance between the hoisting mechanism 4 and the outrigger 5, and the distance difference between the outrigger 5 and the hoisting mechanism 4 on the same side of each gantry crane 100 is controlled to satisfy the Requirements are set to achieve lateral alignment when multiple gantry cranes 100 synchronously lift the switch 34 .

As shown in FIG. 9 , when the gantry crane 100 is deployed from the first transport flat car 41 to the railway line, the gantry crane 100 is supported on the roadbed 47 on both sides of the railway line through the outriggers 5 . A rail plate 35 is provided, and a rail 45 is provided on the rail plate 35 . The total height H of the gantry crane 100 ≥ the height H1 of the bottom plate 57 of the first transport flat car 41 from the rail surface 45 + the height H2 of the rail surface of the rail 45 from the roadbed 47 + the clearance H3 of the hoisting mechanism 4 . The clearance H3 of the hoisting mechanism 4 is the distance from the beam 1 when the hook 55 of the gantry crane 100 is at the highest position.

The two sliding frames 2 or the outriggers 5 of the gantry crane 100 are further provided with a second distance sensor 15. The second distance sensor 15 is used to obtain the distance from the adjacently arranged gantry cranes 100 to meet the requirements of the two gantry cranes. 100 parallelism requirements between beams 1. After the first gantry crane 100 is deployed in place, the gantry cranes 100 deployed later acquire the distances from the adjacent gantry cranes 100 through the second distance sensors 15 provided on the two sliding frames 2 or the outriggers 5, and pass Adjust the rotation angle of the swivel mount 200 to meet the parallelism requirement between the beams 1 of the two gantry cranes 100 .

The hoisting mechanism 4 is further provided with a force sensor 16 to realize the stability control when the switch 34 is hoisted by the plurality of gantry cranes 100 . When the gantry crane 100 starts to hoist the new switch 44 or the old switch 56, the hoisting mechanism 4 of each gantry crane 100 takes the value collected by the force sensor 16 at this time (ie the load just lifted off the ground) as the reference value. If the change value in the subsequent hoisting process exceeds the standard value, by adjusting the motor speed of the hoisting mechanism 4 (which can be achieved by controlling the motor current), the collected value of the force sensor 16 of the hoisting mechanism 4 during the hoisting process is maintained to be basically equal to the reference value, so that The vertical stability control is realized when the multiple gantry cranes 100 synchronously lift the switch 34 .

The gantry crane 100 further includes a sliding drive mechanism 3 , the sliding frame 2 is sleeved on the beam 1 , one end of the sliding driving mechanism 3 is set on the beam 1 , and the other end is connected to the sliding frame 2 . The sliding frame 2 is provided with a transverse support 54 with internal threads, and the transverse beam 1 is provided with a mounting seat 53 . The sliding driving mechanism 3 adopts a power-driven screw mechanism, the power driving end of the sliding driving mechanism 3 is fixed on the mounting seat 53, the screw end of the sliding driving mechanism 3 is connected to the traverse support 54, and the screw is driven by power. The rotation drives the sliding frame 2 to achieve lateral movement.

As shown in FIG. 3 and FIG. 4 , the sliding frame 2 is further provided with a wedge-shaped locking mechanism 18 . The wedge-shaped locking mechanism 18 is located between the beam 1 and the sliding frame 2 and includes two wedge-shaped sliding blocks in contact with each other. piece. After the locking mechanism 52 passes through the sliding frame 2 , the two wedge-shaped sliding blocks are pressed to realize the locking of the position of the sliding frame 2 . After the lateral span of the two outriggers 5 is adjusted in place, the position locking of the sliding frame 2 is realized by the wedge-shaped locking mechanism 18 .

The outrigger 5 further includes a threaded barrel 6 , a screw 9 , a support 10 and a leg sleeve 11 . The threaded barrel 6 is connected below the sliding frame 2 , the outrigger sleeve 11 is sleeved on the lower part of the threaded barrel 6 , and the support 10 is arranged below the outrigger sleeve 11 . The screw 9 is arranged in the outrigger sleeve 11 , the upper end of the screw 9 is connected with the threaded barrel 6 through threads, and the lower end is connected with the lifting drive mechanism 7 . The support 10 is provided with a lift drive mechanism 7 , and the lift drive mechanism 7 drives the screw 9 to rotate to make the threaded barrel 6 move up and down, so as to realize the telescopic function of the outrigger 5 .

The lower part of the support leg 5 is further provided with an adjustable support foot 8 , through which the leveling function of the support leg 5 and the gantry crane 100 can be realized. The beam 1 is provided with a tilt sensor 17 . After the gantry crane 100 is unloaded from the first transport flat car 41 , the tilt state data of the gantry crane 100 is obtained through the tilt sensor 17 , and the horizontal beam 1 is leveled by fine-tuning the adjustable feet 8 .

The gantry crane 100 is mainly composed of an I-shaped beam 1, a sliding telescopic outrigger 5, a lifting mechanism (hoist crane) 4, a sliding mechanism (including a sliding frame 2 and a sliding driving mechanism 3), and a wedge-shaped locking mechanism 18. And the power cabinet 12 and other components. The outriggers 5 are slidably sleeved on the beam 1 of the I-shaped through the upper sliding frame 2 . The sliding drive mechanism 3 is driven by a motor or a lead screw to rotate to realize sliding, and is fixed on the beam 2 through the mounting seat 53 . The sliding frame 3 is provided with a wedge-shaped locking mechanism 18. After the lateral span is adjusted in place, the locking can be completed by a locking mechanism 52 (in the form of a motor or a motor-driven screw). A threaded barrel 6 is welded below the sliding frame 2 , and the threaded barrel 6 is connected with the screw 9 through threads. The lower end of the screw rod 9 is the lift driving mechanism 7, which is driven by a motor or a motor, and is fixed on the bracket of the outrigger through the bearing 13. When the driving screw rod rotates, the threaded barrel can move up and down to realize the telescopic function of the outrigger. The bottom end of the bracket is provided with a threaded adjustable foot, and the foot is connected with the bracket through a pin shaft to cope with the uneven ground environment.

As shown in FIGS. 7 and 8 , the rail line gantry hoisting device further includes a hoisting tool 33 , and the hoisting tool 33 further includes a bearing beam 36 , a mounting frame 37 , a hoisting ring 38 and a hoisting claw 39 . The hoisting mechanism 4 includes a hook 55 that can move up and down in the vertical direction. The hoisting ring 38 is arranged on the upper part of the bearing beam 36 , and the hoisting hook 55 is connected with the hoisting ring 38 . The mounting bracket 37 is arranged on the lower part of the bearing beam 36 , and the hanging claws 39 are arranged on the left and right sides of the mounting bracket 37 along the line direction (as shown by L in FIG. 7 and FIG. 8 ). The lifting ring 38 at the upper end of the hoisting tool 33 can be connected to the hooks 55 of the gantry cranes 100 through slings or hooks, and the lower end is connected to the switch 34 through a plurality of lifting points, as shown in FIG. 6 . The mounting frame 37 has a longitudinally movable function, and can move back and forth relative to the load beam 36 along the line direction after the switch 34 is lifted, so as to solve the problem of accurate positioning of the switch 34 .

When the gantry crane 100 performs the hoisting operation, the switch 34 is hoisted by the hoisting claw 39 . After the switch 34 is hoisted, the mounting frame 37 moves back and forth on the bearing beam 36 along the line direction, so that the switch 34 is hoisted to a designated longitudinal position. The mounting frame 37 is movably connected to the bearing beam 36 , the two ends of the bearing beam 36 along the line direction are provided with sprockets 50 , and the two sprockets 50 are connected by a chain 51 . The chain 51 is connected to the mounting frame 37, and one of the sprockets 50 is driven to rotate by the longitudinal shifting mechanism 48. The rotation of the sprocket 50 drives the chain 51 to move forward and backward along the line direction, thereby realizing the longitudinal direction of the mounting frame 37 (as shown in Figures 7 and 8). in the direction indicated by L) to solve the problem of accurate positioning of the switch 34.

The rail line gantry hoisting device described in Embodiment 1, its outriggers 5 are vertically retractable and can slide on the beam 1 to adjust the span and height of the gantry crane 100 to adapt to different site conditions and different sizes of turnouts 34 replacement. The outrigger 5 adopts a rotatable and leveling mechanism, and is realized by means of an oil cylinder or an electric screw. The hoisting mechanism 4 can use a hoist or other slings.

Example 2

In order to solve many problems in the replacement of existing railway lines, especially high-speed rail ballastless track turnout components, Embodiment 2 provides a simple structure, low cost, convenient and quick operation, and can be transported to the railway site by a rail flat car. The group hoisting system composed of intelligent gantry cranes adopts the method of group hoisting to smoothly lift heavy objects on the railway line. After the multiple gantry cranes 100 are unloaded from the rail flat car and deployed according to the distance requirements, the group crane control is used to solve the problems of synchronization of the lifting of the multiple gantry cranes 100 and the stability of the lifting process during the lifting process of the line components. The rail line gantry group crane system uses the skylight time to transport the gantry crane 100, the lifting tool 33 and the new turnout 44 to the operation site by using the transportation flat car, and place them in the appropriate position to carry out the lifting and replacement of the new and old turnouts, and then the old ones are transported. The switch 56 is transported away from the job site. When lifting the oversized objects of the turnout components, multiple gantry cranes are used for lifting, and the purpose of stable operation is achieved through reasonable control of the intelligent gantry crane group crane operation.

As shown in FIG. 16 and FIG. 17 , an embodiment of a rail line gantry group crane system on which the method of the present invention is based specifically includes: in an operating state, several In the gantry crane 100 described in Example 1, the gantry crane 100 is installed across the roadbed 47 on both sides of the railway line.

The gantry crane 100 is set on the first transport flat car 41 in the transport state, and the system further includes:

Rail car 40, first transport flat car 41 and second transport flat car 42;

The rotating mounting base 200 for fixing the gantry crane 100 is arranged on the first transport flat car 41 in the transport state;

The hoisting tool 33 and the switch 34 are arranged on the second transport flat car 42 in the transport state.

In the working state, the upper end of the lifting tool 33 is connected to the hooks 55 of the gantry cranes 100 through the lifting ring 38 , and the lower end of the lifting tool 33 is connected to the switch 34 through a plurality of lifting claws 39 . During operation, when several gantry cranes 100 are deployed to appropriate positions, the switch 34 is lifted by the lifting tool 33 . After the switch 34 is lifted, the mounting frame 37 is driven by the traction mechanism 40 to move forward and backward on the bearing beam 36 along the line direction, so as to lift the switch 34 to a designated longitudinal position.

The transportation adopts the rail car 40 for temporary hauling, one modified flat car (ie the first transport flat car 41 ) to transport multiple gantry cranes 100 , and two ordinary flat cars (ie the second transport flat car 42 ) to transport the old and new switches, as shown in the attached drawing 15 and Figure 16. The rail car 40 , the first transport flat car 41 or the second transport flat car 42 is further provided with a power device 43 for providing power to the rotating mount 200 . The power device 43 can be of different types: battery-driven or generator-driven, and the actuator can be electrically driven or hydraulically driven. Each swivel mount 200 can be driven individually or in a centralized unified power drive mode.

In the working state, several gantry cranes 100 are arranged at intervals along the line direction (as shown in the direction of L in FIG. 15 and FIG. 16 ). The lower part of the hoisting tool 33 is connected to the switch 34 through a plurality of hanging claws 39 . After the switch 34 is hoisted, the vertical movement mechanism 48 drives the mounting frame 37 to move back and forth relative to the bearing beam 36 along the line direction, so as to realize the accurate positioning of the switch 34 in the longitudinal direction.

The switch replacement system described in Embodiment 2 adopts a group lifting method of multiple (generally 3 to 5) gantry cranes 100, and 3-5 gantry cranes 100, lifting tool 33 and new switch 44 are passed through the rail flat car (including the rail car 40). , the first transport flat car 41 and the second transport flat car 42) are transported to the job site, and a plurality of gantry cranes 100 are disembarked to the designated position in sequence according to the position and order. Then, the new switch 44 is unloaded and placed under the gantry crane 100 by the group crane and the dedicated lifting tool 33 . The old switch 56 is then disassembled, and the old and new switches are replaced by the gantry crane 100 . After the line is restored, the old turnout 56 is hoisted to the second transport flat car 42 , and the multiple gantry cranes 100 get on the car in sequence and drive away in a fixed manner.

Example 3

As shown in FIG. 10 to FIG. 14 , an embodiment of the rotary fixing device 200 applied to the track plate replacement system described in Embodiment 2 specifically includes:

the fixed mounting seat 21 fixed on the first transport flat car 41;

The lifting seat 19 used for fixed installation of the gantry crane 100, the lifting seat 19 can be lifted and lowered relative to the fixed installation seat 21, so as to realize the first transport flat car 41 of the gantry crane 100 up and down;

The slewing bearing 20 disposed between the fixed mounting base 21 and the lifting base 19 enables the lifting base 19 to rotate horizontally relative to the fixed mounting base 21 through the slewing bearing 20 to adjust the installation direction of the gantry crane 100 .

The rotary fixing device 200 described in Embodiment 2 can fix multiple gantry cranes 100 on the rail flat car, and under the condition of ensuring that the transportation limit of the vehicle is not exceeded, the multiple gantry cranes 100 are transported by the rail flat car and deployed to the job site, Carry out lifting operations and then recycle.

When in the transport state, the gantry crane 100 is longitudinally fixed on the lifting base 19 . When in the deployed state, the gantry crane 100 is adjusted to a lateral arrangement by rotation through the slew bearing 20 .

The rotary fixing device 200 also includes a locking seat 22 arranged on the lifting seat 19. The locking seat 22 is provided with a number of grooves 28 for fixing the gantry crane 100. The number of the grooves 28 is determined according to the size of the gantry crane 100, generally. for 2 to 3 pairs. The rotary fixing device 200 further includes a guide post seat 23 disposed on the slewing bearing 20 , the inner ring of the slewing bearing 20 is fixedly mounted on the guide post seat 23 , and the outer ring of the slewing bearing 20 is fixedly installed on the fixed mounting seat 21 . A guide post 25 is installed on the guide post base 23 , and the guide post 25 passes through a through hole opened on the lift base 19 . The rotary fixing device 200 further includes a rotary driving mechanism 32 , one end of the rotary driving mechanism 32 is fixedly mounted on the fixed mounting seat 21 , and the other end drives the slewing bearing 20 with a gear on the outer ring to realize the rotation function through a gear.

The rotary fixing device 200 further includes a lifting mechanism 24 . One end of the lifting mechanism 24 is fixedly installed on the guide post base 23 , and the other end is connected to the lifting base 19 . A locking mechanism 26 is provided on the side of the locking seat 22 and near each pair of grooves 28. After the beam 1 of the gantry crane 100 is fixed in the grooves 28, the locking mechanism 26 presses the beam 1. The gantry crane 100 is locked and installed in the groove 28 . The locking mechanism 26 can be directly pressed laterally by an oil cylinder, or pressed by a lever structure. The two sets of locking mechanisms 26 press the beam 1 of the gantry crane 100 tightly into the groove 28 through the oil cylinder, thereby fixing the gantry crane 100 . The middle parts of the lifting seat 19 and the locking seat 22 are hollow to accommodate the hoisting mechanism 4 of the gantry crane 100 .

Two sliding mechanisms 27 are provided on the locking seat 22 opposite to each other, and a stopper 29 is provided on the lift seat 19 opposite to the sliding mechanism 27 , and the movable end of the sliding mechanism 27 is connected to the stopper 29 contact. When the movable end of one of the sliding mechanisms 27 is stretched, the movable end of the other sliding mechanism 27 is contracted, thereby driving the locking base 22 to slide relative to the lifting base 19 along the moving direction of the sliding mechanism 27 . Two guide protrusions 30 are provided on the lifting seat 19 opposite to each other along the moving direction of the sliding mechanism 27 , and two guide grooves 31 are provided on the locking seat 22 respectively corresponding to the guide protrusions 30 . The guide groove 31 slides on the guide protrusion 30 to guide the relative sliding between the locking seat 22 and the lifting seat 19 .

The base of the fixed mounting seat 21 is connected with the bottom plate 56 of the first transport flat car 41 by bolts, and the uppermost use bolts to install the slewing bearing 20 with gears on the outer ring, and the rotary driven gear mounted on the fixed mounting seat 21 drives the slewing bearing 20 to realize Rotation function. The upper part of the inner ring of the slewing bearing 20 is installed with the guide post seat 23 by bolts, and the upper part of the guide post seat 23 is installed with two guide posts 25 by interference fit. The lifting mechanism 24 is fixed on the guide column seat 23 (specifically, a lifting oil cylinder, an air cylinder or an electric cylinder), the piston rod of the lifting mechanism 24 is connected with the lifting seat 19, and the lifting seat 19 is sleeved on the two guide columns 25. The lifting and lowering function can be realized by extending and retracting the mechanism 24 . The lift seat 19 is provided with two guide protrusions 30, which function as guide rails. The locking seat 22 is provided with two guide grooves 31 , and the guide grooves 31 slide over the two guide protrusions 30 . Two sliding mechanisms 27 are installed on the locking seat 22 (specifically, a lifting oil cylinder, an air cylinder or an electric cylinder can be used). When the moving mechanism 27 is extended and retracted respectively, the entire locking base 22 can slide on the lifting base 19 .

The rotary fixing device 200 is composed of a locking seat 22 with a groove 28 , a lifting seat 19 , a slewing bearing 20 and a fixed mounting seat 21 and the like. The lifting and fixing mounting seat 21 is fixed on the bottom plate 60 of the first transport flat car 41 and connected by bolts. The rotary fixture 200 is powered by batteries, generators or flat carts. During transportation, the gantry crane 100 is locked and pressed in the groove 28 by the locking mechanism 26 . The slewing bearing 20 is driven to rotate by a motor or a motor, and the lifting seat 19 can use an oil cylinder to complete the lifting action. During operation, the rotary fixing device 200 can lift or lower the gantry crane 100 through the lifting seat 19. After driving and rotating, the gantry crane 100 can realize horizontal rotation at different angles. The disengagement is completed in the groove 28 . The position where the gantry crane 100 is installed in the forward direction on the first transport flat car 41 is taken as the starting point of the rotation of the slewing bearing 20, and the end point when the gantry crane 100 rotates 90° clockwise is used as the end point. When in place, it stops and locks.

When in the transport state, the gantry crane 100 is longitudinally locked and installed in the groove 28 of the fixed mount 21, as shown in FIG. 15 . When arriving at the job site, the gantry crane 100 is first driven by the lifting mechanism 24 to rise to the highest point, and then driven by the rotary drive mechanism 32 to rotate to the horizontal direction. The lifting mechanism 24 then drives the gantry crane 100 to descend to the working surface. When the outrigger 5 of the gantry crane 100 is lowered to the designated position, the locking mechanism 26 is released, and the gantry crane 100 is disengaged from the groove 28 to realize the operation deployment of the gantry crane 100 .

Example 4

In the operation method of the rail line gantry group crane given in Example 4, several gantry cranes 100 and other materials such as the hoisting tool 33 are transported to the operation site by the rail flat car according to the needs of the hoisting object. Multiple gantry cranes 100 are automatically unloaded and deployed in place in position and order, the rail flat car is driven away, and then the lifting operation can be carried out. Through the comprehensive control of the group crane, after the hoisting operation is completed, the flat car enters, the gantry crane 100 is recovered and loaded, and it is fixed on the flat car to drive away. In this embodiment, other auxiliary processes such as gantry crane support point confirmation, support point leveling, rail fastener removal, and rail cutting, welding, grinding, and leveling are omitted. The following specifically takes the fork center replacement process as an example to describe the track circuit of the present invention. The gantry group crane operation method is explained in detail.

Since the distance between each gantry crane 100 is relatively long, the wireless remote control device 57 is used to coordinately control the movement of each gantry crane 100 by means of centralized wireless remote control. Each gantry crane 100 is provided with a power supply cabinet 12 including a control system, with functions of signal reception and signal feedback. As shown in FIG. 15 , the operation interface of the wireless remote control device 57 includes a gantry crane operation area 58 and a comprehensive operation operation area 59 , and has signal receiving and transmitting functions, and is equipped with various action buttons of the gantry crane 100 . The synchronous control of group cranes mainly includes two aspects: synchronous horizontal hoisting and synchronous vertical hoisting. The vertical synchronous equidistant ascent and the horizontal equidistant movement of the multiple gantry cranes 100 depend on the sensors installed on the gantry cranes 100, and the rotating mounting base 200 makes the parallelism between the gantry cranes 100 basically meet the requirements after the gantry cranes 100 are vertically placed.

As shown in Fig. 18 to Fig. 39, an embodiment of the operation method of the rail line gantry group crane of the present invention specifically includes the following steps:

S100) Before the operation, according to the hoisting object and environmental conditions, make a hoisting plan, including how many gantry cranes 100 are needed, and mark the position where each gantry crane 100 is placed; The position of the starting point sensor is adjusted first, so that the beam 1 of each gantry crane 100 is parallel; the position of the rotation end sensor of each rotary mounting base 200 rotated by 90° is adjusted, and the beam 1 is parallel after each gantry crane 100 is rotated by 90°;

S101) Several gantry cranes 100 are fixed on the first transport flat car 41 in the longitudinal direction (as shown in the direction of L in FIG. 18 and FIG. 19 ) through the rotating mounting seat 200 (to adapt to the vehicle limit), and the new switch 44 and the hoisting The tooling 33 is placed on the second transport flat car 42, and is transported to the designated position on the job site by the rail car 40, as shown in FIG. 18 and FIG. 19;

S102) pulling the first transport flat car 41 by the rail car 40, and deploying the gantry crane 100 to the designated position of the line in turn by using the rotary mounting base 200;

Step S102) further includes:

S1021) The rail car 40 pulls the first transport flat car 41 to move to the placement position of the first gantry crane 100, and the rotating mount 200 rotates 90° until the gantry crane 100 is perpendicular to the line direction. At this time, the gantry crane 100 is horizontally ( As shown in the direction of W in FIG. 21) is fixed on the first transport flat car 41, as shown in FIG. 20 and FIG. 21;

S1022) The outrigger 5 of the gantry crane 100 moves to the designated position along the beam 1, and the rotating mounting base 200 drives the gantry crane 100 to descend; Continue to extend and level to complete the deployment of a gantry crane 100;

S1023) The rail car 40 pulls the first transport flat car 41 to move in sequence, and repeats step S1022) until all the gantry cranes 100 are deployed to the designated position, as shown in FIG. 22 and FIG. 23;

S103) The rail car 40 pulls the second transport flat car 42 to move to a designated position, connects the hoisting tool 33 with the hoisting mechanisms 4 of several gantry cranes 100 to realize the group hoisting operation, moves the hoisting tool 33 and lifts the new switch 44 , as shown in Figure 24 and Figure 25;

S104) The rail car 40 pulls the first transport flat car 41 and the second transport flat car 42 away from the switch replacement operation area, and uses several gantry cranes 100 to carry out group lifting to move the new switch 44 laterally to the side of the outrigger 5 and place it, As shown in Figure 26 and Figure 27.

The following process is also included after step S104):

S105) cutting the rail 45, removing the fastener, and removing the old switch 56;

S106) Move the hoisting tool 33 to the old turnout 56 by the gantry crane 100 and hang it up, and place the old turnout 56 on the outrigger 5 on the other side of the gantry crane 100, as shown in Figure 29;

S107) Move the hoisting tool 33 to the new switch 44 by the gantry crane 100 and hang it up, and place the new switch 44 at the position of the old switch 56, as shown in FIG. 30 and FIG. 31 . If there is any deviation, the position can be precisely adjusted by moving the mounting frame 37 of the lifting tool 33 . Then the new switch 44 and the rail 45 are welded, the fasteners are installed, and the line is restored.

After step S109), the following process is also included:

S108) Move the hoisting tool 33 to the old turnout 56 by the gantry crane 100 and hang it up;

S109) the rail car 40 pulls the second transport flat car 42 into;

S110) Move the old switch 56 by the lifting tool 33 and place it on the designated position of the second transport flat car 42, as shown in FIG. 32 and FIG. 33 .

The following process is also included after step S112):

S111) The rail car 40 pulls the first transport flat car 41 to move to the bottom of the gantry crane 100 at the final position, and the beam 1 of the gantry crane 100 is aligned with the groove 28 of the rotating mounting base 200, as shown in FIG. 34 and FIG. 35 ;

S112) The outriggers 5 of the gantry crane 100 are retracted to the grooves 28 of the cross beam 1 entering the rotary mounting base 200 and fixed;

S113) The outrigger 5 of the gantry crane 100 continues to shrink to the starting position, and the outrigger 5 moves to the starting position along the beam 1. At this time, the gantry crane 100 is fixed in a lateral direction (as shown in the direction W in FIG. 35 ) by rotating the mounting base 200 on the first transport flat car 41;

S114) Repeat steps S111) to S113) to complete the recovery process of the remaining gantry cranes 100, as shown in FIG. 36 and FIG. 37;

S115) The rotating mounting base 200 is rotated until the gantry crane 100 is fixed in the longitudinal direction (the direction indicated by L in Fig. 38 and Fig. 39 ), and the rail car 40 pulls the first transport flat car 41 and the second transport flat car 42 away , as shown in Figure 38 and Figure 39.

During the hoisting operation of the new turnout 44 or the old turnout 56 , the gantry crane 100 hoisting the new turnout 44 is synchronously controlled for lateral movement and vertical movement.

Step S102) also further includes:

After the first gantry crane 100 is deployed in place, the gantry cranes 100 deployed later acquire the distances from the adjacent gantry cranes 100 through the second distance sensors 15 provided on the two sliding frames 2 or the outriggers 5, and pass Adjust the rotation angle of the swivel mount 200 to meet the parallelism requirement between the beams 1 of the two gantry cranes 100 .

A first distance sensor 14 is provided on the hoisting mechanism 4. When the gantry crane 100 performs the hoisting operation, the first distance sensor 14 obtains the distance between the hoisting mechanism 4 and the outrigger 5, and controls the outrigger on the same side of each gantry crane 100 by controlling the distance between the hoisting mechanism 4 and the outrigger 5. The distance difference between 5 and the hoisting mechanism 4 satisfies the set requirements, so as to realize the lateral position alignment when the multiple gantry cranes 100 synchronously hoist the switch 34 .

An adjustable support foot 8 is arranged at the lower part of the support leg 5 , and the leveling function of the support leg 5 and the gantry crane 100 is realized through the adjustable support foot 8 . An inclination sensor 17 is provided on the beam 1 . During the deployment of the gantry crane 100 , the inclination state data of the gantry crane 100 is obtained through the inclination sensor 17 , and the horizontal beam 1 is leveled by fine-tuning the adjustable feet 8 .

A force sensor 16 is provided on the hoisting mechanism 4. When the gantry crane 100 starts to hoist the new switch 44 or the old switch 56, the hoisting mechanism 4 of each gantry crane 100 takes the value collected by the force sensor 16 as the reference value. If the change value in the subsequent hoisting process exceeds the standard value, by adjusting the motor speed of the hoisting mechanism 4, the value collected by the force sensor 16 of the hoisting mechanism 4 during the hoisting process is maintained to be basically equal to the reference value, so as to realize that multiple gantry cranes 100 pairs of switches 34 Vertical stability control during synchronous lifting.

The lifting tool 33 includes a bearing beam 36 , a mounting frame 37 , a lifting ring 38 and a lifting claw 39 . The hoisting mechanism 4 includes a hook 55 that can move up and down in the vertical direction. The hoisting ring 38 is arranged on the upper part of the bearing beam 36 , and the hoisting hook 55 is connected with the hoisting ring 38 . The mounting bracket 37 is arranged at the lower part of the bearing beam 36 , and the hanging claws 39 are arranged on the left and right sides of the mounting bracket 37 along the line direction. The mounting frame 37 is movably connected to the bearing beam 36 , the two ends of the bearing beam 36 along the line direction are provided with sprockets 50 , and the two sprockets 50 are connected by a chain 51 . The chain 51 is connected to the mounting frame 37 , and one of the sprockets 50 is driven to rotate by the longitudinal movement mechanism 48 .

In the description of this application, it should be noted that when an element is referred to as being "fixed" or "disposed on" another element, it can be directly or indirectly disposed on the other element; when an element is referred to as being "fixed" or "disposed on" another element An element is referred to as being "connected to" another element, and it can be directly connected to the other element or indirectly connected to the other element.

It is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "top", "bottom", "front", "rear", "left", The orientation or positional relationship indicated by "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for convenience Describe the application and simplify the description without indicating or implying that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the application.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present application, "plurality" and "several" mean two or more, unless otherwise expressly and specifically defined.

It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of those who are familiar with this technology, and are not used to limit the conditions that the application can implement. Therefore, it has no technical substantive significance. Any structural modification, proportional relationship change or size adjustment should still fall within the scope of the disclosure in this application, without affecting the effect that the application can produce and the purpose that can be achieved. The technical content can cover the scope.

By implementing the technical scheme of the rail line gantry group crane operation method described in the specific embodiment of the present invention, the following technical effects can be produced:

(1) The operation method of the rail line gantry group crane described in the specific embodiment of the present invention, the gantry crane has the functions of lateral movement, lifting and leveling of the outriggers, and the lateral span spacing of the outriggers, the height from the ground, the lifting position and the height can be precisely adjusted. , can meet the needs of different line ground conditions, and the height of the gantry crane is adjustable, there is no risk of touching the catenary during the lifting process, and it is convenient for consistent control operation and maintenance;

(2) The operation method of gantry group cranes for track lines described in the specific embodiments of the present invention is suitable for the replacement of the entire group of turnouts as well as the replacement of single pointed rails, switch cores, etc., through the combination of multiple gantry cranes, various The handling, placement, position adjustment and replacement of long line components; and the replacement of line components will not occupy the adjacent line space, the operation is flexible, there is no operation safety risk, and it can well adapt to the operation requirements under complex line conditions;

(3) The operation method of the rail line gantry group crane described in the specific embodiment of the present invention has the advantages of simple structure, high reliability, easy maintenance and repair, low manufacturing cost, high operation efficiency, small occupied space and light weight, and can be placed and recycled. Through the lifting platform, the transportation, placement, operation and recycling of the gantry crane can be controlled by wireless, with a high degree of integration and intelligence, and the operation efficiency is further improved;

(4) The operation method of the rail line gantry group crane described in the specific embodiment of the present invention, the inclination of the beam of the gantry crane is fed back by the inclination sensor, and the height of the outrigger is fine-tuned to make the inclination of the beam meet the requirements; The distance measuring sensor is installed on the frame shifting, which can ensure the parallelism requirements of the front and rear gantry cranes; the hoisting mechanism is equipped with a lateral position sensor, so that the horizontal position of each hook is consistent; the force sensor is set on the rotating shaft of the hoisting mechanism, which can meet the stability of synchronous lifting Require.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

The above descriptions are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art, without departing from the spirit and technical solutions of the present invention, can make many possible changes and modifications to the technical solutions of the present invention by using the methods and technical contents disclosed above, or modify them to be equivalent. Variant equivalent embodiments. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (12)

1. A rail line gantry group hoisting operation method is characterized by comprising the following steps:

s101) a plurality of gantry cranes (100) are longitudinally fixed on a first transport flat car (41) through a rotary mounting base (200), new turnouts (44) and a hoisting tool (33) are placed on a second transport flat car (42), and are transported to the designated positions of an operation site through a rail car (40);

s102) a first transport flat car (41) is pulled by the rail car (40), and the gantry cranes (100) are sequentially deployed to the designated positions of the line by using the rotary mounting bases (200);

s103) the rail car (40) pulls the second transport flat car (42) to move to a specified position, the lifting tool (33) is connected with the lifting mechanisms (4) of a plurality of gantry cranes (100) to realize group lifting operation, and the lifting tool (33) moves and lifts a new turnout (44);

s104) the rail car (40) pulls the first transport flat car (41) and the second transport flat car (42) to drive away, and the new turnout (44) is transversely moved to one side close to the supporting leg (5) to be placed through group hoisting by a plurality of gantry cranes (100).

2. The method of claim 1, wherein the step S102) further comprises:

s1021) the rail car (40) pulls the first transport flat car (41) to move to the placing position of the first gantry crane (100), and the rotary mounting seat (200) rotates for 90 degrees until the gantry crane (100) is vertical to the line direction;

s1022) moving the support legs (5) of the gantry crane (100) to a specified position along the cross beam (1), and driving the gantry crane (100) to descend by the rotary mounting base (200); the supporting legs (5) extend downwards to be close to the ground, the locking of the gantry crane (100) by the rotary mounting base (200) is released, the supporting legs (5) continue to extend and level, and the deployment of the gantry crane (100) is completed;

s1023) the rail vehicle (40) draws the first transport flat vehicle (41) to move in sequence, and the step S1022 is repeatedly executed until all the gantry cranes (100) are deployed to the specified positions.

3. A method for operating a railway line gantry crane according to claim 1 or 2, further comprising the following steps after step S104):

s105) cutting the steel rail (45), removing the fastener, and removing the old turnout (56);

s106) moving the lifting tool (33) to an old turnout (56) through the gantry crane (100) and hanging and lifting the old turnout, and placing the old turnout (56) on a supporting leg (5) close to the other side of the gantry crane (100);

s107) moving the lifting tool (33) to a new turnout (44) through the gantry crane (100), hanging and lifting the new turnout, and placing the new turnout (44) at the position of the old turnout (56); and welding the new turnout (44) and a steel rail (45), installing a fastener, and completing the restoration of the line.

4. The method of claim 3, further comprising the following steps after step S107):

s108) moving the lifting tool (33) to the old turnout (56) through the gantry crane (100) and hanging and lifting;

s109), the rail car (40) pulls a second transport flat car (42) to drive in;

s110) moving and placing the old turnout (56) at the designated position of the second transport flat car (42) through the lifting tool (33).

5. The method of claim 4, further comprising the following steps after the step S110):

s111) the rail car (40) pulls the first transport flat car (41) to move to the position below the gantry crane (100) at the last position, and the beam (1) of the gantry crane (100) is aligned to the position of the groove (28) of the rotary mounting base (200);

s112) the supporting legs (5) of the gantry crane (100) are contracted to the cross beam (1) and enter the groove (28) of the rotary mounting base (200) and are fixed;

s113) the supporting legs (5) of the gantry crane (100) continue to contract to the initial positions, and the supporting legs (5) move to the initial positions along the cross beam (1);

s114) repeating the steps S111-S113), and finishing the recovery process of the rest gantry cranes (100);

s115) the rotary mounting base (200) rotates to the gantry crane (100) to be longitudinally fixed, and the rail car (40) pulls the first transportation flat car (41) and the second transportation flat car (42) to drive away.

6. The method of claim 1, 2, 4 or 5, wherein: and in the hoisting operation process of the new turnout (44) or the old turnout (56), the gantry crane (100) is synchronously controlled to hoist the new turnout (44) by transverse movement and vertical movement.

7. The method of claim 6, wherein the step S102) further comprises:

after the first gantry crane (100) is deployed in place, the later-deployed gantry crane (100) acquires the distance between the next-deployed gantry crane (100) and the adjacently-deployed gantry crane (100) through the second distance sensors (15) arranged on the two sliding frames (2) or the supporting legs (5), and the rotating angle of the rotating installation base (200) is adjusted to meet the requirement of parallelism between the beams (1) of the two gantry cranes (100).

8. The method of claim 7, comprising: the turnout synchronous lifting device is characterized in that a first distance sensor (14) is arranged on the lifting mechanism (4), when the gantry cranes (100) carry out lifting operation, the first distance sensor (14) acquires the distance between the lifting mechanism (4) and the supporting legs (5), and the distance difference between the supporting legs (5) and the lifting mechanism (4) on the same side of each gantry crane (100) is controlled to meet the set requirement so as to realize the alignment of the transverse positions of the turnouts (34) by the gantry cranes (100).

9. The rail line gantry crane operation method according to claim 7 or 8, wherein: the lower part of the supporting leg (5) is provided with an adjustable supporting leg (8), and the leveling function of the supporting leg (5) and the gantry crane (100) is realized through the adjustable supporting leg (8); the method comprises the steps that an inclination sensor (17) is arranged on the cross beam (1), inclination state data of the gantry crane (100) are obtained through the inclination sensor (17) in the deployment process of the gantry crane (100), and the leveling of the cross beam (1) is achieved through fine adjustment of adjustable supporting legs (8).

10. The method of claim 9, comprising: the hoisting mechanism (4) is provided with a force sensor (16), and when the gantry crane (100) starts to hoist a new turnout (44) or an old turnout (56), the hoisting mechanism (4) of each gantry crane (100) takes the acquisition value of the force sensor (16) as a reference value; and if the change value exceeds the standard value in the subsequent hoisting process, the motor rotating speed of the hoisting mechanism (4) is adjusted, so that the acquisition value of the force sensor (16) of the hoisting mechanism (4) is maintained to be basically equivalent to the reference value in the hoisting process, and the vertical stability control of the turnout (34) by a plurality of gantry cranes (100) during the synchronous hoisting is realized.

11. The method of claim 1, 2, 4, 5, 7, 8 or 10, wherein: the lifting tool (33) comprises a bearing beam (36), a mounting frame (37), a lifting ring (38) and a lifting claw (39); the lifting mechanism (4) comprises a lifting hook (55) capable of lifting and moving along the vertical direction, the lifting ring (38) is arranged at the upper part of the bearing beam (36), and the lifting hook (55) is connected with the lifting ring (38); the mounting frame (37) is arranged at the lower part of the bearing beam (36), and the lifting claws (39) are arranged at the left side and the right side of the mounting frame (37) along the line direction.

12. The method of claim 11, wherein: the mounting frame (37) is movably connected with the bearing beam (36), chain wheels (50) are arranged at two ends of the bearing beam (36) along the line direction, and the two chain wheels (50) are connected through a chain (51); the chain (51) is connected with the mounting rack (37), one of the chain wheels (50) is driven to rotate through the longitudinal moving mechanism (48), and the chain wheel (50) rotates to drive the chain (51) to move along the line direction, so that the longitudinal movement of the mounting rack (37) is realized.

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