CN217708641U

CN217708641U - Track slab replacing device and system

Info

Publication number: CN217708641U
Application number: CN202221085863.XU
Authority: CN
Inventors: 晏红文; 李石平; 陈亮陪; 卢云波; 朱利君; 罗前星; 吴青考
Original assignee: Zhuzhou CSR Times Electric Co Ltd
Current assignee: Zhuzhou CRRC Times Electric Co Ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-11-01
Anticipated expiration: 2032-05-07

Abstract

The utility model discloses a device and system are changed to track board, the device includes: and the gantry cranes are arranged at intervals along the direction of the railway line and span the roadbed on two sides of the steel rail. The gantry crane further comprises: a cross beam; the sliding frames are respectively movably arranged at the left end and the right end of the cross beam and can transversely move along the cross beam; the hoisting mechanism is arranged on the cross beam, is positioned between the two sliding frames and can move transversely along the cross beam; set up respectively in two frame belows that slide, can follow the landing leg that vertically stretches out and draws back. The track slab replacing device further comprises: the lifting tool is connected with the lifting mechanism in an operating state and used for lifting the track plate, and the longitudinal position of the track plate can be adjusted through the lifting tool. The utility model discloses can solve current change device and system and change inefficiency, intensity of labour is big, drops into the technical problem that the manpower is many.

Description

Track slab replacing device and system

Technical Field

The utility model relates to a railway engineering machine tool technical field especially relates to a device and system are changed to track board for high-speed railway ballastless track.

Background

The high-speed rail line mainly adopts ballastless tracks, and the plate-type ballastless tracks are the main structural form of the high-speed rail line. The track slab of the ballastless track of the high-speed rail is of a concrete structure, and is not only a main support piece of a steel rail, but also the most main part of a high-speed rail line. However, as the working time increases, the rail slab will gradually crack and damage, such as map-like cracks, large-area chipping, peeling and the like, and the safe operation of the high-speed rail is seriously affected. The plate-type ballastless track plate in China mainly has three forms, which are respectively as follows: the three types of structures are not very different, and the steel rail is mainly characterized by large size, heavy weight (the heaviest weight reaches 9 tons), and very difficult to replace manually under the steel rail. At present, two movable modes of a gantry crane and a cantilever crane are generally adopted for replacing the track slab. The gantry crane is directly connected with the new and old track plates through the steel wire rope, the gantry crane can automatically run after being lifted, and the replacement mode has obvious defects: firstly, the space on two sides of a high-speed rail line is narrow, the walking is difficult, unstable and the safety is poor; secondly, the operation restriction is large, and the place with the obstacle can not be replaced. The cantilever crane mode can only work on the line, which not only has poor safety, but also occupies the line space.

In the prior art, the following technical scheme is mainly related to the utility model:

prior art 1 is a chinese utility model patent that is published in 2018, 05 and 25 by the fifth engineering limited company of twenty times group of middle iron, published in 2017, 10 and 09, and has a publication number of CN 207404758U. The utility model discloses a change track board or take off small-size gantry crane of board, including the crossbeam, the middle part of crossbeam is provided with lifts by crane the motor, lift by crane the first couple of fixedly connected with on the motor, a pair of support frame of lateral wall fixed connection of crossbeam, the equal fixed connection bottom support in bottom of a pair of support frame, the wire-wrap has a pair of second to connect the steel cable on the first couple, the equal fixedly connected with U type connecting piece of one end that first couple was kept away from to a pair of second, the outer wall of U type connecting piece is pegged graft there is the bolt, the below of first couple is provided with the gallows, the equal joint of four U type connecting pieces is on the gallows and through the bolt fastening, the small-size gantry crane that should change track board or take off the board can be through the road bed that is under construction, the bridge, the tunnel, it is safe, convenience, the ballastless track type II is repeatedly transported and is changed, III, convenient operation, the factor of safety is high, the transport speed is fast, the characteristics that construction cost is low. However, the gantry crane is directly connected with a new and old track slab through a steel wire rope, so that the traveling is difficult, the operation is unstable, the safety is poor, and the place with obstacles cannot be replaced.

The prior art 2 is the chinese utility model patent of china railway headquarters, the scientific and technical institute of china regional office group ltd, xu-engineering group engineering machinery ltd, applied for 16 days 08 and month 2019, and announced at 07 days 08 and month 2020 with the announcement number CN 211199932U. The utility model discloses a ballastless track board changes operation platform, including ballastless track board access arrangement and hoisting apparatus, ballastless track board access arrangement includes two at least access subassemblies, and the access subassembly is along the direction of height superpose, and every access subassembly comprises access storehouse frame and storage plate storehouse, and the storage plate storehouse constitutes sliding fit through constituting between a slide mechanism and the storehouse frame and makes the storage plate storehouse can follow the length direction who accesses the storehouse frame and slide, and the movable route of davit among the hoisting apparatus is in the access storehouse frame and need to trade between the track board. However, the working platform mainly utilizes the cantilever crane mounted on the flatcar to replace the overhead line, the overhead line is easy to touch, the structure is also huge and complex, and the cost is high. Meanwhile, the single point crane of the cantilever is unstable and unsafe, and is not convenient for the accurate positioning of the track slab.

The prior art 3 is an application of the china railway science institute on the railway building in 2017, 16 th 05 and 14 th 2017, and an application of the china invention with the publication number CN106948228a on 14 th 2017. The invention discloses a system and a method for quickly replacing a ballastless track plate. The replacing method comprises the steps of jacking a steel rail on a track plate to be replaced to a certain height, jacking the track plate by using a cross-top, moving the track plate out of the range of the steel rail by using a track plate translation device and placing the track plate on a tray, moving the track plate to be replaced by adopting hoisting equipment, placing a new track plate on the tray, moving the new track plate into the position of an original track plate to be in place, and finally recovering the limit of the track plate and the bonding between the track plate and a filling layer. However, the link of the high-speed rail line is complex, some places have obstacles, the space at two sides of the line is narrow, the tray is not easy to place and is not convenient to move, and therefore, the replacing system is low in replacing efficiency, high in labor intensity and large in manpower input.

Prior art 4 is a chinese invention application published in 2013 on 03 and 29 of the regional group ltd of central iron, and in 2013 on 06 and 12 of the regional group ltd of central iron, with publication number CN103147370 a. The invention discloses a replacing device and a replacing method for a track slab of a plate-type ballastless track. The transverse sliding mechanism is erected above the base plate where the damaged track slab is located through the temporary supporting structure. The method comprises the following steps: 1. moving the steel rail upwards; 2. moving up the damaged track slab; 3. erecting a transverse sliding mechanism; 4. flatly placing the damaged track slab; 5. moving the damaged track slab to the right; 6. hoisting the damaged track slab and hoisting a new track slab; 7. moving the new track plate to the left; 8. dismantling the transverse sliding mechanism; 9. installing a new track plate; 10. and (5) downwards translating and mounting the steel rail. However, the link of the high-speed rail line is complex, some places have obstacles, and the space at two sides of the line is narrow, so that the transverse sliding mechanism is not easy to install and move, and the new track slab is difficult to place. In addition, the transportation, the unloading and the placement of the new and old track slabs are complex, and the device also has the technical problems of low replacement efficiency, high labor intensity and large input of manpower.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a device and system are changed to track board to it is low to solve current change device and system change efficiency, and intensity of labour is big, drops into the technical problem that the manpower is many.

In order to realize the above utility model purpose, the utility model particularly provides a technical implementation scheme of device is changed to track board, the device is changed to the track board, include: and the gantry cranes are arranged at intervals along the direction of a railway line and span the roadbed on two sides of the steel rail.

The gantry crane further comprises:

a cross beam;

the sliding frames are respectively movably arranged at the left end and the right end of the cross beam and can transversely move along the cross beam;

the lifting mechanism is arranged on the cross beam, is positioned between the two sliding frames and can move transversely along the cross beam;

the supporting legs are respectively arranged below the two sliding frames and can stretch out and draw back along the vertical direction;

the track slab replacing device further comprises: and the hoisting tool is connected with the hoisting mechanism in an operating state and is used for hoisting the track slab.

Furthermore, the lifting tool comprises a lifting beam, a longitudinal moving mechanism, a lifting ring and a traction mechanism. The lifting mechanism comprises a lifting hook capable of vertically lifting, the lifting ring is arranged on the upper portion of the lifting beam, and the lifting hook is connected with the lifting ring. The longitudinal moving mechanism is movably arranged at the lower part of the hanging beam and used for hoisting the track slab. And after the plurality of gantry cranes are deployed to proper positions, hoisting the track slab by the longitudinal moving mechanism. And after the track slab is hoisted, the longitudinal moving mechanism is driven by the traction mechanism to move back and forth on the hoisting beam along the line direction.

Further, the handling frock still includes sprocket, chain sling and pulley, the bottom left and right sides of hanging beam is provided with the track along the line direction. The longitudinal moving mechanism is used for hoisting the track plate through a hoisting chain and longitudinally moves on the track through a pulley. The two ends of the hanging beam along the line direction are provided with chain wheels, and the two chain wheels are connected through a chain. The chain is connected with the longitudinal moving mechanism, one of the chain wheels is driven to rotate through the traction mechanism, and the chain wheels rotate to drive the chain to move along the line direction, so that the longitudinal movement of the track slab is realized.

Furthermore, the gantry crane further comprises a sliding driving mechanism, the sliding frame is sleeved on the cross beam, one end of the sliding driving mechanism is arranged on the cross beam, and the other end of the sliding driving mechanism is connected with the sliding frame.

Furthermore, a transverse moving support with internal threads is arranged on the sliding frame, and a mounting seat is arranged on the cross beam. The sliding driving mechanism adopts a power-driven lead screw mechanism, a power driving end of the sliding driving mechanism is fixed on the mounting seat, and a lead screw end of the sliding driving mechanism is connected to the transverse moving support.

Furthermore, a wedge-shaped locking mechanism is arranged in the sliding frame, is positioned between the cross beam and the sliding frame and comprises two wedge-shaped sliding blocks which are in mutual contact. After the locking mechanism penetrates through the sliding frame, the two wedge-shaped sliding blocks are compressed to lock the position of the sliding frame.

Further, the landing leg comprises a threaded cylinder, a screw, a support and a landing leg sleeve. The screw thread section of thick bamboo is connected in the below of frame that slides, the lower part of screw thread section of thick bamboo is located to the landing leg cover barrel casing, the support sets up in the telescopic below of landing leg. The screw rod is arranged in the supporting leg sleeve, the upper end of the screw rod is connected with the thread cylinder through threads, and the lower end of the screw rod is connected with the lifting driving mechanism. And a lifting driving mechanism is arranged in the support, and drives the screw rod to rotate through the lifting driving mechanism so as to enable the threaded cylinder to move up and down.

Further, a bearing is arranged between the screw rod and the support.

Furthermore, the lower parts of the supporting legs are provided with adjustable supporting feet, and the supporting legs and the gantry crane can be leveled through the adjustable supporting feet.

The utility model discloses still specifically provide a technical implementation scheme of track board change system in addition, track board change system, include:

the system comprises a rail car, a first transport flat car and a second transport flat car;

the track plate replacing device is arranged on the first transportation flat car in the transportation state;

the rotary mounting seat is arranged on the first transport flat car in a transport state and used for fixing the gantry crane;

and the hoisting tool and the track plate are arranged on the second transport flat car in a transport state.

Through implementing the aforesaid the utility model provides a technical scheme of device and system is changed to track board has following beneficial effect:

(1) The utility model discloses track board changes device and system, portal crane landing leg stride locate the both sides of railway circuit, need not to occupy the adjacent line operation, does not have the safe risk that the operation surpassed the boundary limit, and device simple structure, easy operation, reliability are high simultaneously, the maintenance of being convenient for, and the operating personnel that need are few, and the operating efficiency is high, can realize that jumbo size switch part lifts by crane;

(2) The utility model discloses track slab changes device and system, the operation is safe and reliable, not only is applicable to whole group switch change but also is adapted to the change of single switch rail, switch center etc. and can realize the transport, place, position adjustment and change to various different length circuit parts through the combination of a plurality of portal cranes, especially can realize that jumbo size switch part lifts by crane;

(3) The utility model discloses track board changes device and system, portal crane possess landing leg sideslip, go up and down, leveling function, and landing leg transverse span interval, apart from ground height all adjustable, can satisfy the function of different circuit ground operating mode demands, and portal crane device height-adjustable can guarantee that the handling is steady, does not have the risk of touching the contact net in the lifting process;

(4) The utility model discloses track board changes device and system, portal crane low in manufacturing cost, change swiftly, efficient, when the portal crane transports, vertically install on the flatcar not overtaking the vehicle gauge limit, the handling frock has the longitudinal movement mechanism can realize track board long distance longitudinal movement, makes the location of track board more accurate, can solve the technical problem that portal crane moved security low and operation environment adaptability is poor;

(5) The utility model discloses track slab changes device and system, handling frock are equipped with from walking indulging and move the mechanism, can solve the technical problem that the security that the portal crane moved is low and operation environment adaptability is poor; the hoisting beam is of a rectangular tubular structure and made of high-strength materials, so that the hoisting tool has enough rigidity and strength, the self weight is light, and the load of the gantry crane is reduced;

(6) The utility model discloses device and system are changed to the track board, and the hanging beam of handling frock adopts the rectangle to hang, and when the portal crane had the skew in longitudinal position, the rectangle was hung and vertically has enough size and can make the corresponding removal certain distance of lifting hook to eliminate the skew influence, make the lifting mechanism of every portal crane keep parallel basically, guarantee that the handling is steady.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, from which other embodiments can be derived by a person skilled in the art without inventive effort.

Fig. 1 is a schematic three-dimensional structure of a gantry crane in one embodiment of the track slab replacing device of the present invention;

fig. 2 is a schematic front structural view of a gantry crane in one embodiment of the track slab replacing device of the present invention;

fig. 3 is a schematic side view of a gantry crane according to an embodiment of the track slab replacing apparatus of the present invention;

fig. 4 is a perspective view of a side structure of a gantry crane in an embodiment of the track slab replacing device of the present invention;

fig. 5 is a schematic top view of a gantry crane according to an embodiment of the track slab replacing apparatus of the present invention;

fig. 6 is a schematic transverse structure diagram of a hoisting tool in an embodiment of the track slab replacing device of the present invention;

fig. 7 is a schematic longitudinal structure diagram of a hoisting tool in an embodiment of the track slab replacing device of the present invention;

fig. 8 is a schematic perspective view of a hoisting tool in an embodiment of the track slab replacing device of the present invention;

fig. 9 is a schematic view of a mounting structure of a gantry crane in one embodiment of the track slab replacing system of the present invention;

figure 10 is a schematic block diagram of a swivel mount in an embodiment of the track slab replacement system of the present invention;

fig. 11 is a schematic perspective view of a swivel mount in an embodiment of the track slab replacing system according to the present invention;

fig. 12 is a schematic bottom view of a swivel mount in an embodiment of the track slab replacement system of the present invention;

fig. 13 is a schematic side view of a rotary mounting base in an embodiment of the track slab replacing system of the present invention;

fig. 14 is a schematic side view of a swivel mount of an embodiment of the track slab replacement system of the present invention at another viewing angle;

fig. 15 is a schematic structural view of an embodiment of the track slab replacing system according to the present invention from a top view;

fig. 16 is a schematic view of the transportation step of the track slab replacing device in a top view according to an embodiment of the operation method of the track slab replacing system of the present invention;

fig. 17 is a schematic view of a top view of a gantry crane reaching an operating position and rotating to a horizontal position in an embodiment of a method for operating a track slab replacement system of the present invention;

fig. 18 is a schematic view of a step of getting off the gantry crane in a telescopic manner in a top view in an embodiment of the operation method of the track slab replacing system of the present invention;

fig. 19 is a schematic view of a new track plate hoisting step in a side view in an embodiment of the operation method of the track plate replacing system of the present invention;

fig. 20 is a schematic side view of a new track plate placed to an adjacent plate in a side view according to an embodiment of the method of the present invention;

fig. 21 is a schematic top view of a new track slab placed to an adjacent slab in accordance with an exemplary embodiment of the method of the present invention;

fig. 22 is a schematic view of an old track slab removing step in a top view according to an embodiment of the operation method of the track slab replacing system of the present invention;

fig. 23 is a schematic view of an old track slab hoisting step in a side view in an embodiment of the operation method of the track slab replacing system of the present invention;

fig. 24 is a schematic view of the step of placing the old turnout to the adjacent slab in a side view according to an embodiment of the operation method of the track slab replacing system of the present invention;

fig. 25 is a schematic view of a new track plate in place step in a top view according to an embodiment of the operation method of the track plate replacing system of the present invention;

fig. 26 is a schematic view of an old track slab hoisting step in a top view according to an embodiment of the operation method of the track slab replacing system of the present invention;

fig. 27 is a schematic view of a side view of a step of recovering an old track slab to a flatcar in an embodiment of the operation method of the track slab replacing system of the present invention;

fig. 28 is a schematic view of the track slab replacing device in a top view in a recovering step according to an embodiment of the operation method of the track slab replacing system of the present invention;

fig. 29 is a schematic view of a step of locking the gantry crane to the rotary mounting base in a top view in an embodiment of the operation method of the track slab replacing system of the present invention;

fig. 30 is a schematic view of a step of rotating the gantry crane to the longitudinal fixing in the top view according to an embodiment of the operation method of the track slab replacing system of the present invention;

in the figure: 1-a cross beam, 2-a sliding frame, 3-a sliding drive mechanism, 4-a hoisting mechanism, 5-a support leg, 6-a threaded cylinder, 7-a lifting drive mechanism, 8-an adjustable support leg, 9-a screw, 10-a support, 11-a support leg sleeve, 12-a power supply cabinet, 13-a bearing, 14-a first distance sensor, 15-a second distance sensor, 16-a force sensor, 17-an inclination sensor, 18-a wedge locking mechanism, 19-a lifting seat, 20-a rotary bearing, 21-a fixed mounting seat, 22-a locking seat, 23-a guide post seat, 24-a lifting mechanism, 25-a guide post, 26-a locking mechanism, 27-a sliding mechanism, 28-a groove, 29-a stop, 30-guide projection, 31-guide groove, 32-rotary driving mechanism, 33-lifting tool, 34-lifting beam, 35-longitudinal moving mechanism, 36-track plate, 37-chain wheel, 38-chain, 39-lifting ring, 40-traction mechanism, 41-lifting chain, 42-pulley, 43-track, 44-first transport flat car, 45-steel rail, 46-base, 47-roadbed, 48-locking mechanism, 49-mounting seat, 50-track car, 51-second transport flat car, 52-power device, 53-support, 54-supporting plate, 55-telescopic rod, 56-lifting hook, 57-transverse moving support seat, 58-bottom plate, 361-new track plate, 362-old track plate, 363-adjacent plate, 100-gantry crane and 200-rotary mounting seat.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention will be combined below to carry out clear and complete description on the technical solution in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 30, a specific embodiment of the track slab replacing device and system according to the present invention is shown, and the present invention will be further described with reference to the drawings and the specific embodiment.

Example 1

In order to solve the technical problems of the existing hoisting equipment for the track line, embodiment 1 provides a track slab replacing device based on the hoisting of a gantry crane 100, which has the advantages of simple structure, low cost and convenient and fast operation. The track slab replacing device can utilize skylight time, and a transporting flat car is adopted to transport the gantry crane 100, the hoisting tool 33, objects needing operation and the like to an operation site for hoisting operation.

As shown in fig. 1 to fig. 9, an embodiment of the track slab replacing device of the present invention specifically includes:

and the gantry cranes 100 are arranged at intervals along the railway line direction, and the gantry cranes 100 are arranged on the roadbed 47 at two sides of the steel rail 45 in a spanning manner.

Gantry crane 100 further comprises:

a cross beam 1;

the sliding frames 2 are respectively movably arranged at the left end and the right end of the beam 1, and the sliding frames 2 can transversely move (in the direction W shown in the attached drawing 1) along the beam 1 so as to adjust the transverse span of the gantry crane 100;

the hoisting mechanism 4 is arranged on the cross beam 1, is positioned between the two sliding frames 2 and can move transversely along the cross beam 1 so as to adjust the transverse hoisting position of the track slab 36;

and the supporting legs 5 are respectively arranged below the two sliding frames 2 and can extend and retract along the vertical direction (the direction is H in the attached drawing 1) so as to adjust the height of the cross beam 1 from the roadbed 47.

The track slab replacing device further comprises: the lifting tool 33 is connected with the lifting mechanism 4 in an operation state and used for lifting the track plate 36, and the longitudinal position of the track plate 36 can be adjusted through the lifting tool 33.

As shown in fig. 9, when the gantry crane 100 is deployed from the first transport flat car 44 to the railway line, the gantry crane 100 is supported on the roadbed 47 at both sides of the railway line by the support legs 5, the roadbed 47 is provided with the base 46, the base 46 is provided with the track plate 36, and the steel rail 45 is arranged on the track plate 36. The total height H of the gantry crane 100 is more than or equal to the height H1 between the bottom plate 58 of the first transport flat car 44 and the rail surface of the steel rail 45, the height H2 between the rail surface of the steel rail 45 and the roadbed 47 and the clearance H3 of the hoisting mechanism 4. The clearance H3 of the hoisting mechanism 4 is the distance from the hook 56 of the gantry crane 100 to the beam 1 at the highest position.

As shown in fig. 2, the lower portion of the supporting leg 5 is further provided with an adjustable supporting leg 8, and the leveling function of the supporting leg 5 and the gantry crane 100 can be realized through the adjustable supporting leg 8. The cross beam 1 is provided with an inclination sensor 17, inclination state data of the gantry crane 100 are obtained through the inclination sensor 17, and the leveling of the cross beam 1 is realized through fine adjustment of the adjustable support legs 8.

The lifting mechanism 4 is further provided with a first distance sensor 14, and the first distance sensor 14 is used for acquiring the distance between the lifting mechanism 4 and the supporting leg 5, so as to realize the alignment of the transverse positions when the multiple gantry cranes 100 lift the turnout 34. When the gantry cranes 100 perform 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 that the transverse positions of the turnouts 34 can be aligned when the gantry cranes 100 synchronously lift the turnouts 34.

And the two sliding frames 2 or the supporting legs 5 of the gantry cranes 100 are further provided with second distance sensors 15, and the second distance sensors 15 are used for acquiring the distance between the adjacent gantry cranes 100 so as to meet the requirement on the parallelism between the beams 1 of the two gantry cranes 100. After the first gantry crane 100 is deployed in place, the later deployed gantry cranes 100 acquire the distance between the gantry cranes 100 which are adjacently arranged through the second distance sensors 15 arranged on the two sliding frames 2 or the supporting legs 5, and the requirement on the parallelism between the beams 1 of the two gantry cranes 100 is met by adjusting the rotation angle of the rotary mounting base 200.

The hoisting mechanism 4 is further provided with a force sensor 16 to realize the stability control of the multiple gantry cranes 100 when hoisting the turnout 34. When the gantry crane 100 starts to hoist a new turnout 55 or an old turnout, the hoisting mechanism 4 of each gantry crane 100 takes the acquired value of the force sensor 16 at that time as a reference value. If the variation value exceeds the standard value in the subsequent hoisting process, the rotation speed of the motor 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 is realized when the turnout 34 is synchronously hoisted.

The gantry crane 100 further comprises a sliding driving mechanism 3, the sliding frame 2 is sleeved on the beam 1, one end of the sliding driving mechanism 3 is arranged on the beam 1, and the other end of the sliding driving mechanism is connected with the sliding frame 2. The sliding frame 2 is provided with a traversing support 57 with internal threads, and the crossbeam 1 is provided with a mounting seat 49. The sliding driving mechanism 3 adopts a power-driven screw mechanism, a power-driven end of the sliding driving mechanism 3 is fixed on the mounting seat 49, a screw end is connected to the transverse moving support 57, and the sliding frame 2 is driven to move transversely by the rotation of the power-driven screw.

As shown in fig. 3 and fig. 4, a wedge-shaped locking mechanism 18 is further arranged in the sliding frame 2, and the wedge-shaped locking mechanism 18 is located between the cross beam 1 and the sliding frame 2 and comprises two wedge-shaped sliding blocks which are in contact with each other. The locking mechanism 48 passes through the sliding frame 2 and then compresses the two wedge-shaped sliding blocks to lock the position of the sliding frame 2. When the transverse span of the two support legs 5 is adjusted in place, the position of the sliding frame 2 is locked by the wedge-shaped locking mechanism 18.

The leg 5 further comprises a threaded barrel 6, a screw 9, a seat 10 and a leg sleeve 11. The threaded cylinder 6 is connected below the sliding frame 2, the lower part of the threaded cylinder 6 is sleeved with the supporting leg sleeve 11, and the support 10 is arranged below the supporting leg sleeve 11. The screw rod 9 is arranged in the supporting leg sleeve 11, the upper end of the screw rod 9 is connected with the thread cylinder 6 through threads, and the lower end of the screw rod 9 is connected with the lifting driving mechanism 7. A lifting driving mechanism 7 is arranged in the support 10, and the lifting driving mechanism 7 drives the screw rod 9 to rotate so as to enable the threaded cylinder 6 to move up and down, so that the telescopic function of the supporting leg 5 is realized.

As shown in fig. 6, 7 and 8, the lifting tool 33 further includes a lifting beam 34, a longitudinal moving mechanism 35, a lifting ring 39 and a traction mechanism 40. The hoisting mechanism 4 includes a hook 56 capable of vertically moving, and a hoisting ring 39 is provided on the upper portion of the hoisting beam 34, and the hook 56 is connected to the hoisting ring 39. The longitudinal moving mechanism 35 is movably disposed at a lower portion of the hanging beam 34, and is used for hoisting the track slab 36. After several gantry cranes 100 are deployed to the proper positions, the rail plate 36 is lifted by the longitudinal moving mechanism 35. After the track slab 36 is lifted, the traction mechanism 40 drives the longitudinal moving mechanism 35 to move back and forth on the hanging beam 34 along the line direction (the direction shown as L in fig. 7 and 8), so that the track slab 36 is lifted to the designated longitudinal position.

The hoisting tool 33 further comprises a chain wheel 37, a chain 38, a hoisting chain 41 and a pulley 42, and rails 43 are arranged on the left side and the right side of the bottom of the hoisting beam 34 along the line direction. The vertical movement mechanism 35 swings the rail plate 36 by a hoist chain 41, and the vertical movement mechanism 35 moves vertically on a rail 43 by a pulley 42. Both ends of the hanging beam 34 in the line direction are provided with chain wheels 37, and the two chain wheels 37 are connected by a chain 38. The chain 38 is connected to the longitudinal moving mechanism 35, and the traction mechanism 40 drives one of the sprockets 37 to rotate, and the sprocket 37 rotates to drive the chain 38 to move along the line direction, so as to realize longitudinal (as shown by L in fig. 7 and 8) movement of the track plate 36, so as to solve the technical problem of accurate positioning of the track plate 36. The traction mechanism 40 can adopt a chain sprocket or a winch and the like, so that the structure is simpler, the cost is lower, the operation is simple, and the safety and the reliability are realized.

The hoisting tool 33 is composed of a hollow hoisting beam 34, a longitudinal moving mechanism 35, a traction mechanism 40 and the like. The hollow hanging beam 34 is of a rectangular tubular structure, is made of high-strength materials, has enough wall thickness to ensure the strength and rigidity, is welded with a steel plate at the bottom and is provided with running rails at two sides. The longitudinal moving mechanism 35 (i.e., a moving trolley) is composed of a trolley body and wheels, and 2 to 4 pairs of wheels are symmetrically arranged on the left side and the right side of the trolley body and can run on a running rail. The two sides of the longitudinal moving mechanism 35 are provided with enough chain hangers with hooks to hang the track plate 36. The traction mechanism 40 can adopt a chain wheel and chain or a winch structure, a chain or a steel wire rope is fastened with the longitudinal movement mechanism 35, and the longitudinal movement of the longitudinal movement mechanism 35 is realized through the forward and backward rotation of the traction mechanism 40. The longitudinal moving mechanism 35 adopts a motor or a motor with a gear box and a brake device, and a chain or a steel wire rope penetrates through the rectangular legal hanging beam 34. The plurality of hooks 56 are welded on the upper part of the hanging beam 34 and can be hooked by the hooks 56 of the gantry crane 100, so that certain deviation of the gantry crane 100 in the longitudinal position can be met. During operation, when the group crane composed of the gantry crane 100 firstly hoists the hoisting tool 33 to a proper position, the hoisting chain 41 of the hoisting tool 33 can hook the track plate 36, and then the hoisting tool 33 and the track plate 36 are hoisted together by the group crane. When the pulling mechanism 40 is activated, the longitudinal moving mechanism 35 can move the track plate 36 in the line direction and place the track plate at the replacement position.

The track slab replacing device described in embodiment 1 has the support legs 5 that are vertically retractable and can slide on the cross beam 1 to adjust the span and height of the gantry crane 100 to adapt to different field conditions and replacement of track slabs 36 with different sizes. The supporting legs 5 adopt a rotatable and leveling mechanism and are realized by adopting oil cylinders or electric screw rods and the like. The hoisting mechanism 4 can be a hoist or other hoist.

Example 2

As shown in fig. 15, an embodiment of the track slab replacing system of the present invention specifically includes:

a rail car 50, a first transport flat car 44 and a second transport flat car 51;

a track board replacing device provided on the first transport level 44 in the transport state as described in embodiment 1;

a rotary mounting seat 200 which is arranged on the first transport flat car 44 in a transport state and is used for fixing the gantry crane 100;

the lifting tool 33 and the track plate 36 are arranged on the second transport flat car 51 in a transport state.

The transportation is temporarily hauled by the rail car 50, one modified flat car (i.e. the first transportation flat car 44) transports a plurality of gantry cranes 100, and two common flat cars (i.e. the second transportation flat car 51) transport new and old switches, as shown in fig. 15. The rail car 50, the first transport flat car 44 or the second transport flat car 51 is further provided with a power device 52 for powering the rotary mount 200. The power plant 52 may take different types: the electric motor is driven by a battery or a generator, and the actuating mechanism can be electrically driven or hydraulically driven. A single drive or a centralized unified power drive mode for each rotary mount 200 may be employed.

In an operating state, a plurality of gantry cranes 100 are arranged at intervals along a line direction (such as a direction L shown in fig. 15), the upper part of the hoisting tool 33 is connected with the lifting hooks 56 of the gantry cranes 100 through the hoisting rings 39, and the lower part of the hoisting tool 33 is connected with the track plate 36 through a plurality of hoisting chains 41. After the track plate 36 is lifted, the longitudinal moving mechanism 35 is driven by the traction mechanism 40 to move back and forth along the line direction relative to the hanging beam 34, so that the track plate 36 is accurately positioned in the longitudinal direction.

The track slab replacing system described in embodiment 2 adopts a group-hoisting mode of a plurality of (generally 3 to 5) gantry cranes 100, and transports 3 to 5 gantry cranes 100, a hoisting tool 33 and a new track slab 361 to a working site by a track flat car (including a track car 50, a first transport flat car 44 and a second transport flat car 51), and the gantry cranes 100 sequentially get off to designated positions according to positions and sequence. Then, the new track plate 361 is unloaded and placed under the gantry crane 100 by the group crane and the dedicated hoisting tool 33. The old track plate 362 is removed, and the gantry crane 100 is used to replace the old track plate with a new one. After the line is recovered, the old turnout 362 is lifted to the second transport flat car 51, and the multiple gantry cranes 100 are sequentially loaded and fixedly driven away.

Example 3

As shown in fig. 10 to 14, an embodiment of a rotating fixture 200 applied to the track slab replacing system of embodiment 2 specifically includes:

a fixed mounting base 21 fixed to the first transport flat car 44;

the lifting seat 19 is used for fixedly mounting the gantry crane 100, and the lifting seat 19 can perform lifting motion relative to the fixed mounting seat 21 so as to realize the up-and-down movement of the gantry crane 100 on the first transport flat car 44;

the swivel bearing 20 is disposed between the fixed mounting base 21 and the lifting base 19, and the lifting base 19 can perform a horizontal rotation motion with respect to the fixed mounting base 21 through the swivel bearing 20, so as to adjust the mounting direction of the gantry crane 100.

The rotating and fixing device 200 described in embodiment 3 can fix a plurality of gantry cranes 100 to a railway flat car, and transport the plurality of gantry cranes 100 by the railway flat car while ensuring that the transportation limit of the vehicle is not exceeded, and deploy the gantry cranes to a work site to perform a hoisting operation, and then recover the cranes.

When in the transportation state, the gantry crane 100 is longitudinally fixed on the lifting seat 19. When in the deployed state, gantry crane 100 is adjusted to the transverse disposition by rotating slewing bearing 20.

The rotating fixing device 200 further includes a locking base 22 disposed on the lifting base 19, the locking base 22 is provided with a plurality of grooves 28 for fixing the gantry crane 100, and the number of the grooves 28 is determined according to the size of the gantry crane 100, and is generally 2 to 3 pairs. The rotation fixing device 200 further includes a guide post seat 23 disposed on the rotary bearing 20, an inner ring of the rotary bearing 20 is fixedly mounted on the guide post seat 23, and an outer ring of the rotary bearing 20 is fixedly mounted on the fixed mounting seat 21. The guide post base 23 is provided with a guide post 25, the guide post 25 passes through a through hole formed on the lifting base 19, and when the lifting mechanism 24 performs telescopic motion, the guide post 25 realizes lifting guide of the lifting base 19. The rotation fixing device 200 further comprises a rotation driving mechanism 32, one end of the rotation driving mechanism 32 is fixedly installed on the fixed installation base 21, and the other end of the rotation driving mechanism realizes a rotation function through the gear rotation driving slewing bearing 20 with a gear on the outer ring.

The rotating and fixing device 200 further comprises a lifting mechanism 24, one end of the lifting mechanism 24 is fixedly installed on the guide post base 23, the other end of the lifting mechanism 24 is connected to the lifting base 19, and the lifting function of the gantry crane 100 is realized through the telescopic motion of the lifting mechanism 24. A locking mechanism 26 is arranged on the side of the locking seat 22 and near each pair of the grooves 28, and when the beam 1 of the gantry crane 100 is fixed in the groove 28, the gantry crane 100 is locked and installed in the groove 28 by the compression of the beam 1 by the locking mechanism 26. The locking mechanism 26 may be directly laterally compressed by a cylinder or may be compressed by a lever structure. Two sets of locking mechanisms 26 tightly press the beam 1 of the gantry crane 100 into the groove 28 through the oil cylinder, so as to fix the gantry crane 100. The lifting seat 19 and the locking seat 22 are hollow in the middle to accommodate the hoisting mechanism 4 of the gantry crane 100.

Two sliding mechanisms 27 are arranged on the locking seat 22 opposite to each other, a stopping part 29 is arranged on the lifting seat 19 opposite to the sliding mechanisms 27, and the movable end of the sliding mechanism 27 is contacted with the stopping part 29. When the movable end of one of the sliding mechanisms 27 is stretched, the movable end of the other sliding mechanism 27 is contracted, so that the locking seat 22 is driven to slide relative to the lifting seat 19 along the moving direction of the sliding mechanism 27. Two guide protrusions 30 are formed on the elevating base 19 to face each other in the moving direction of the sliding mechanism 27, and two guide grooves 31 corresponding to the guide protrusions 30 are formed on the locking base 22. The guide groove 31 is slid on the guide projection 30 to guide the relative sliding movement between the locking base 22 and the elevating base 19.

The base of the fixed mounting base 21 is connected to the bottom plate 56 of the first transport flat car 44 by bolts, the outer ring of the slewing bearing 20 with gears is mounted on the top by using bolts, and the slewing bearing 20 driven by the rotation of the gear mounted on the fixed mounting base 21 realizes the rotation function. The upper part of the inner ring of the slewing bearing 20 is provided with a guide post seat 23 through a bolt, and the upper part of the guide post seat 23 is provided with two guide posts 25 through interference fit. A lifting mechanism 24 (a lifting oil cylinder, an air cylinder or an electric cylinder can be specifically adopted) is fixed on the guide post seat 23, a piston rod of the lifting mechanism 24 is connected with the lifting seat 19, the lifting seat 19 is sleeved on the two guide posts 25, and the lifting function can be realized by the telescopic action of the lifting mechanism 24. Two guide protrusions 30 are provided on the elevating base 19 to function as a guide rail. The locking seat 22 is provided with two guide grooves 31, and the guide grooves 31 are slipped on the two guide protrusions 30. Two sliding mechanisms 27 (a lifting oil cylinder, an air cylinder or an electric cylinder can be specifically adopted) are installed on the locking seat 22, a piston rod of the sliding mechanism 27 is connected with a stopping portion 29 on the lifting seat 19, and the sliding of the whole locking seat 22 on the lifting seat 19 can be realized as soon as the two sliding mechanisms 27 extend and retract respectively.

When in the transport position, gantry crane 100 is longitudinally locked in recess 28 of fixed mount 21, as shown in fig. 15. After the working site is reached, the lifting mechanism 24 drives the gantry crane 100 to ascend to the highest point, the rotary driving mechanism 32 drives the gantry crane 100 to rotate transversely, and the lifting mechanism 24 drives the gantry crane 100 to descend to the working surface. When the support legs 5 of the gantry crane 100 are lowered to the designated positions, the locking mechanisms 26 are released, and the gantry crane 100 is disengaged from the grooves 28, so that the operation and the deployment of the gantry crane 100 are realized.

Example 4

In order to solve the technical problems of the existing track slab replacing process, the embodiment provides a multi-gantry crane track slab replacing operation method which is simple in structure, low in cost, convenient and fast to operate. The basic process of the operation method is as follows: and (3) transporting a plurality of (such as 3-5) gantry cranes 100, a hoisting tool 33 and a new track plate 361 to an operation site by using the skylight time by using a transporting flat car, getting off the gantry cranes 100 in place according to positions and sequences, and uniformly deploying the gantry cranes 100 at the track plate to be replaced along a track line. Then, a group hoisting system composed of a plurality of gantry cranes 100 hoists and places a new track plate 361 at a designated position through a special hoisting tool 33, removes fasteners with a certain length of two steel rails 45, and shifts the steel rails 45 at the position of the track plate to be replaced to two sides of the track plate 36. The hoisting tool 33 is hoisted through a group hoisting system consisting of a plurality of gantry cranes 100, and new and old track slabs are hoisted through the longitudinal moving mechanism 35 capable of walking on the hoisting tool 33, so that the track slabs 36 are replaced. Finally, the old track slab 362 is hoisted to the second transport flat car 51, and the gantry cranes 100 are sequentially loaded, fixed and driven away. After the track slab replacing device is hoisted by a group, new and old track slabs can be stably loaded and unloaded from the transportation flat car, and the hoisted track slabs 36 can move for a certain distance along the line direction, so that the replacement of the new and old track slabs is completed. The gantry crane 100 does not need to travel by itself, but travels through the longitudinal movement mechanism 35 to realize longitudinal movement of the track slab 36, so that the hoisting operation safety is high, and the adaptability to the line replacement environment is good.

In this embodiment, save other for example portal crane strong point affirmation, strong point flattening, rail fastener dismantlement and rail cutting welding auxiliary process flows such as leveling of polishing, it is following right the utility model discloses the track slab changes the operation method and carries out the detailed description.

As shown in fig. 16 to 30, an embodiment of a track slab replacing operation method based on the system of embodiment 3 specifically includes the following steps:

s101) a plurality of gantry cranes 100 are longitudinally fixed on the first transport flat car 44 through the rotary mounting base 200, and the new track plate 361 and the hoisting tool 33 are placed on the second transport flat car 51 and transported to a designated position of a working site through the track car 50, as shown in fig. 16;

s102) the rail car 50 pulls the first transport flat car 44 to move to the placing position of the first gantry crane 100, and the rotary mounting base 200 rotates for 90 degrees until the gantry crane 100 is vertical to the line direction, as shown in figure 17;

s103) the rotary mounting base 200 pulls the gantry crane 100 to descend, and the support legs 5 of the gantry crane 100 move to the designated positions along the cross beam 1; 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, as shown in fig. 18;

s104) the rail cars 50 draw the first transport flat cars 44 to move sequentially, and the step S103) is repeatedly executed until all the gantry cranes 100 are deployed to the specified positions;

s105) the rail car 50 pulls the second transportation flat car 51 to move to a designated position, the gantry crane 100 lifts the lifting tool 33, and the lifting tool 33 moves and lifts the new rail plate 361, as shown in fig. 19;

s106) the rail car 50 pulls the first transportation flat car 44 and the second transportation flat car 51 to leave the rail plate replacement work area, and the lifting tool 33 pulls the new rail plate 361 to the adjacent plate 363 of the old rail plate 362 to be replaced, as shown in fig. 20;

s107) arranging the supports 53 on the adjacent plates 363 in a cushioning mode, descending the lifting tool 33, and placing the new track plates 361 on the adjacent plates 363 through the supports 53, as shown in the attached drawing 21.

The following procedure is also included after step S107):

s108) detaching the fastener, mounting the supporting plate 54 by using a screw hole of the fastener, and pulling the steel rail 45 away from two sides of the rail plate 36 by using the telescopic rod 55, as shown in the attached drawing 22;

s109) removing the old track plate 362, and the gantry crane 100 lifts the old track plate 362 by the lifting tool 33, as shown in fig. 23;

s110) arranging a support 53 on another adjacent plate 363 in a cushioning manner, and moving the old rail plate 362 to the another adjacent plate 363 by the gantry crane 100 through the lifting tool 33 and placing the old rail plate on the another adjacent plate 363 through the support 53, as shown in fig. 24;

s111) the lifting tool 33 moves to the new track plate 361 and lifts the new track plate 361, and the new track plate 361 is lifted to the position to be replaced and is replaced, as shown in the attached drawing 25.

The following procedure is also included after step S111):

s112) the steel rail 45 is pulled back to the original position through the telescopic rod 55, the supporting plate 54 is detached, and fastener installation is carried out, as shown in the attached drawing 26;

s113) the gantry crane 100 lifts the old track slab 362 by the lifting tool 33, and the track car 50 pulls the second transportation flat car 51 to drive in, as shown in fig. 27;

s114) the handling tool 33 places the old rail plate 362 on the second transportation flat car 51, as shown in fig. 28.

The following process is also included after step S114):

s115) the rail car 50 pulls the second transport flat car 51 to drive away, and pulls the first transport flat car 44 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 seat 200;

s116) the supporting legs 5 of the gantry crane 100 contract, and the rotary mounting base 200 is lifted until the cross beam 1 enters the groove 28 of the rotary mounting base 200 and is fixed;

s117) 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;

s118) repeating the steps S115) to S117), and finishing the recovery process of the rest gantry cranes 100, as shown in the attached figure 29;

s119) rotating the rotating mounting seat 200 by 90 degrees until the gantry crane 100 is longitudinally fixed, and dragging the first transport flat car 44 and the second transport flat car 51 to get away by the rail car 50, as shown in the attached figure 30.

The lifting tool 33 comprises a lifting beam 34, a longitudinal moving mechanism 35, a lifting ring 39 and a traction mechanism 40. The hoisting mechanism 4 includes a hook 56 that can be vertically moved up and down, and the hoisting ring 39 is provided on the upper portion of the hoisting beam 34, and the hook 56 is connected to the hoisting ring 39. The longitudinal moving mechanism 35 is movably disposed at a lower portion of the hanging beam 34, and is used for hoisting the track plate 36. After several gantry cranes 100 are deployed to the proper positions, the rail plate 36 is lifted by the longitudinal moving mechanism 35. After the track slab 36 is lifted, the traction mechanism 40 drives the longitudinal movement mechanism 35 to move back and forth on the hanging beam 34 along the line direction, so that the track slab 36 is lifted to a specified longitudinal position.

The hoisting tool 33 further comprises a chain wheel 37, a chain 38, a hoisting chain 41 and a pulley 42, and rails 43 are arranged on the left side and the right side of the bottom of the hoisting beam 34 along the line direction. The vertical movement mechanism 35 hoists the rail plate 36 by a hoist chain 41, and the vertical movement mechanism 35 moves vertically on a rail 43 by a pulley 42. Chain wheels 37 are provided at both ends of the suspension beam 34 in the line direction, and the two chain wheels 37 are connected by a chain 38. The chain 38 is connected with the longitudinal movement mechanism 35, one of the chain wheels 37 is driven to rotate by the traction mechanism 40, and the chain wheel 37 rotates to drive the chain 38 to move along the line direction, so that the longitudinal movement of the track plate 36 is realized.

Gantry crane 100 still includes frame 2 and the hoisting mechanism 4 that slides, and both ends movably set up frame 2 about crossbeam 1, and frame 2 that slides can carry out lateral shifting along crossbeam 1. A hoisting mechanism 4 is arranged on the cross beam 1 between the two sliding frames 2, and the hoisting mechanism 4 can move transversely along the cross beam 1. And supporting legs 5 which can stretch out and draw back along the vertical direction are respectively arranged below the two sliding frames 2. A sliding driving mechanism 3 is arranged between the cross beam 1 and the sliding frame 2.

A traverse support 57 with internal threads is provided on the slide frame 2, and a mounting seat 49 is provided on the cross beam 1. The sliding driving mechanism 3 adopts a power-driven screw mechanism, a power-driven end of the sliding driving mechanism 3 is fixed on the mounting seat 49, a screw end is connected to the transverse moving support 57, and the sliding frame 2 is driven to move transversely by the rotation of the power-driven screw. A wedge-shaped locking mechanism 18 is arranged in the sliding frame 2, and the wedge-shaped locking mechanism 18 is positioned between the cross beam 1 and the sliding frame 2 and comprises two wedge-shaped sliding blocks which are in mutual contact. The locking mechanism 48 passes through the sliding frame 2 and then compresses the two wedge-shaped sliding blocks to lock the position of the sliding frame 2. When the transverse span of the two support legs 5 is adjusted in place, the position of the sliding frame 2 is locked by the wedge-shaped locking mechanism 18.

The leg 5 further comprises a threaded barrel 6, a screw 9, a seat 10 and a leg sleeve 11. A threaded cylinder 6 is connected below the sliding frame 2, a support leg sleeve 11 is sleeved below the threaded cylinder 6, and a support 10 is arranged below the support leg sleeve 11. A lifting driving mechanism 7 is arranged in the support 10, a screw rod 9 is arranged in the supporting leg sleeve 11, the upper end of the screw rod 9 is connected with the threaded cylinder 6 through threads, and the lower end of the screw rod 9 is connected with the lifting driving mechanism 7. A bearing 13 is arranged between the screw 9 and the carrier 10. The screw rod 9 is driven by the lifting driving mechanism 7 to rotate so that the thread cylinder 6 moves up and down, and the telescopic function of the supporting leg 5 is realized. The lower parts of the supporting legs 5 are provided with adjustable supporting feet 8, and in the process of deploying the gantry crane 100, the supporting legs 5 and the gantry crane 100 can be leveled through the adjustable supporting feet 8.

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

It will be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

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

It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present application can be implemented, so that the present application has no technical significance.

Through implementing the utility model discloses technical scheme of device and system is changed to track board that concrete embodiment described can produce following technological effect:

(1) The track slab replacing device and the track slab replacing system described in the specific embodiment of the utility model have the advantages that the support legs of the gantry crane span two sides of a railway line, the occupation of adjacent line operation is not needed, the safety risk of operation exceeding a limit is avoided, meanwhile, the device has simple structure, simple operation, high reliability and convenient maintenance, the required operators are few, the operation efficiency is high, and the lifting of large-size turnout parts can be realized;

(2) The track slab replacing device and the track slab replacing system described in the specific embodiment of the utility model have safe and reliable operation, are suitable for replacing the whole set of turnouts and also suitable for replacing single switch rails, turnout centers and the like, and can realize the transportation, placement, position adjustment and replacement of various line parts with different lengths through the combination of a plurality of gantry cranes, in particular can realize the lifting of large-size turnout parts;

(3) According to the track slab replacing device and system described in the specific embodiment of the utility model, the gantry crane has the functions of support leg transverse movement, lifting and leveling, the transverse span distance and the ground distance height of the support legs are adjustable, the requirements of different line ground working conditions can be met, the height of the gantry crane is adjustable, the lifting stability can be ensured, and the risk of touching a contact net is avoided in the lifting process;

(4) The track plate replacing device and the track plate replacing system described in the specific embodiment of the utility model have the advantages that the portal crane is low in manufacturing cost, quick to replace and high in efficiency, the portal crane is longitudinally arranged on a flat car during transportation and does not exceed the vehicle limit, and the hoisting tool is provided with the longitudinal moving mechanism to realize long-distance longitudinal movement of the track plate, so that the track plate is more accurately positioned, and the technical problems of low moving safety and poor operation environment adaptability of the portal crane can be solved;

(5) According to the track slab replacing device and system described in the specific embodiment of the utility model, the hoisting tool is provided with the self-walking longitudinal moving mechanism, so that the technical problems of low safety of gantry crane movement and poor adaptability to operation environment can be solved; the hoisting beam is of a rectangular tubular structure and made of high-strength materials, so that the hoisting tool has enough rigidity and strength, the self weight is light, and the load of the gantry crane is reduced;

(6) The utility model discloses device and system are changed to track board that concrete embodiment described, the hanging beam of handling frock adopts the rectangle to hang, and when the portal crane had the skew in longitudinal position, the rectangle was hung and vertically has enough size and can make the corresponding certain distance that removes of lifting hook to eliminate the skew influence, make the lifting mechanism of every portal crane keep parallel basically, guarantee that the handling is steady.

In the present specification, the embodiments are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. Those skilled in the art can make numerous changes and modifications to the disclosed embodiments, or modify equivalent embodiments, without departing from the spirit and scope of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. A track plate replacing device, comprising: the device comprises a plurality of gantry cranes (100) which are arranged at intervals along the direction of a railway line, wherein the gantry cranes (100) are arranged on roadbed (47) at two sides of a steel rail (45) in a spanning manner;

the gantry crane (100) further comprises:

a cross beam (1);

the sliding frames (2) are respectively and movably arranged at the left end and the right end of the cross beam (1), and the sliding frames (2) can transversely move along the cross beam (1);

the hoisting mechanism (4) is arranged on the cross beam (1), is positioned between the two sliding frames (2) and can move transversely along the cross beam (1);

the supporting legs (5) are respectively arranged below the two sliding frames (2) and can stretch out and draw back along the vertical direction;

the track plate replacing device further comprises: and the hoisting tool (33) is connected with the hoisting mechanism (4) in an operation state and is used for hoisting the track plate (36).

2. The track plate replacing device according to claim 1, wherein: the lifting tool (33) comprises a lifting beam (34), a longitudinal moving mechanism (35), a lifting ring (39) and a traction mechanism (40); the lifting mechanism (4) comprises a lifting hook (56) capable of lifting and moving along the vertical direction, the lifting ring (39) is arranged at the upper part of the lifting beam (34), and the lifting hook (56) is connected with the lifting ring (39); the longitudinal moving mechanism (35) is movably arranged at the lower part of the hanging beam (34) and is used for hoisting the track slab (36); after a plurality of gantry cranes (100) are deployed to proper positions, hoisting the track slab (36) through the longitudinal moving mechanism (35); after the track plate (36) is hoisted, the longitudinal moving mechanism (35) is driven by the traction mechanism (40) to move back and forth on the hanging beam (34) along the line direction.

3. The track plate replacing device according to claim 2, wherein: the hoisting tool (33) further comprises a chain wheel (37), a chain (38), a hoisting chain (41) and pulleys (42), and rails (43) are arranged on the left side and the right side of the bottom of the hoisting beam (34) along the line direction; the longitudinal moving mechanism (35) is used for hoisting the track plate (36) through a hoisting chain (41), and the longitudinal moving mechanism (35) is used for longitudinally moving on a track (43) through a pulley (42); two ends of the hanging beam (34) along the line direction are provided with chain wheels (37), and the two chain wheels (37) are connected through a chain (38); the chain (38) is connected with the longitudinal moving mechanism (35), one of the chain wheels (37) is driven to rotate through the traction mechanism (40), and the chain wheel (37) rotates to drive the chain (38) to move along the line direction, so that the longitudinal movement of the track plate (36) is realized.

4. A track plate changing device according to claim 1, 2 or 3, wherein: the gantry crane (100) further comprises a sliding driving mechanism (3), the sliding frame (2) is sleeved on the cross beam (1), one end of the sliding driving mechanism (3) is arranged on the cross beam (1), and the other end of the sliding driving mechanism is connected with the sliding frame (2).

5. The track plate replacing device according to claim 4, wherein: a transverse moving support (57) with internal threads is arranged on the sliding frame (2), and a mounting seat (49) is arranged on the cross beam (1); the sliding driving mechanism (3) adopts a power driving screw mechanism, a power driving end of the sliding driving mechanism (3) is fixed on the mounting seat (49), and a screw end of the sliding driving mechanism (3) is connected to the transverse moving support (57).

6. The track plate replacing device according to claim 5, wherein: a wedge-shaped locking mechanism (18) is arranged in the sliding frame (2), and the wedge-shaped locking mechanism (18) is positioned between the cross beam (1) and the sliding frame (2) and comprises two wedge-shaped sliding blocks which are in mutual contact; after the locking mechanism (48) penetrates through the sliding frame (2), the two wedge-shaped sliding blocks are pressed tightly to lock the position of the sliding frame (2).

7. The track plate replacing device according to claim 5 or 6, wherein: the supporting leg (5) comprises a threaded cylinder (6), a screw (9), a support (10) and a supporting leg sleeve (11); the threaded cylinder (6) is connected below the sliding frame (2), the support leg sleeve (11) is sleeved on the lower portion of the threaded cylinder (6), and the support seat (10) is arranged below the support leg sleeve (11); the screw (9) is arranged in the supporting leg sleeve (11), the upper end of the screw (9) is connected with the thread cylinder (6) through threads, and the lower end of the screw is connected with the lifting driving mechanism (7); and a lifting driving mechanism (7) is arranged in the support (10), and the lifting driving mechanism (7) drives the screw rod (9) to rotate so as to enable the threaded cylinder (6) to move up and down.

8. The track plate replacing device according to claim 7, wherein: and a bearing (13) is arranged between the screw rod (9) and the support (10).

9. The track plate replacing device according to claim 1, 2, 3, 5, 6 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) can be realized through the adjustable supporting leg (8).

10. A track slab replacement system, comprising:

a rail car (50), a first transport flat car (44) and a second transport flat car (51);

the rail plate changing device according to any one of claims 1 to 9 arranged on a first transport carriage (44) in a transport state;

the rotary mounting seat (200) is arranged on the first transport flat car (44) in a transport state and used for fixing the gantry crane (100);

and the lifting tool (33) and the track plate (36) are arranged on the second transport flat car (51) in a transport state.