CN217710105U - Railway roadbed filler cutting and replacing construction device - Google Patents

Abstract

The utility model relates to a railway roadbed filler cutting replacement construction equipment belongs to railway roadbed engineering field. Cutting roadbed filling in an area needing to be renovated by using a chain saw, and carrying out construction operations such as supporting, falling track deviation rectifying, grouting repairing, line restoring and the like on a track structure in a cutting seam according to design requirements. The utility model has the advantages that: the cutting device is convenient to carry, convenient to install and easy to operate, particularly, the cutting device is convenient to move up and down when the skylight point of the operation railway is constructed, and in the cutting process, the rotating speed can be controlled by adopting hydraulic stepless speed change according to the hardness of a roadbed to be cut and the height of a required cutting seam, so that the cutting efficiency is improved.

Description

Railway roadbed filler cutting and replacing construction device

Technical Field

The utility model belongs to railway roadbed engineering field, in particular to railway roadbed filler cutting replacement construction equipment.

Background

Along with the rapid development of national social economy, the scale of railway engineering construction and the operating mileage are increased day by day, china is wide in regions, geological conditions between regions are complex and changeable, and the problems of subgrade settlement, upwarping, slurry turning, mud pumping and the like are revealed day by day.

The existing roadbed replacement method is to integrally break a roadbed slab, a supporting layer and a roadbed and then rebuild, and the renovation method has the disadvantages of large engineering, high comprehensive cost and adverse social influence, and vehicles need to be stopped during construction, so that normal operation is seriously influenced.

Chinese patent 201810410371.5, a method for repairing high-speed railway roadbed damage deformation, which adopts transverse drilling holes in a roadbed and inserts circular pipes. Although the normal operation of the railway is not affected, the following defects exist: the deformation of the upper arch of the roadbed is ensured to be within a controllable range by replacing the large circular pipe with the small circular pipe, even if the deformation of a small section of line is different, the required specifications are more when the diameter of the circular pipe is prepared, and the implementation is difficult.

Chinese patent 201721556116.9, a high-speed railway roadbed deformation repairing structure, which is characterized in that a connecting steel plate is arranged at the top of the surface layer of a foundation bed, a concrete bottom layer is laid at the top of the connecting steel plate, and an anchor cable downwards stretches and positions the connecting steel plate through a fixing soil nail, so that the deformation of an upper arch of the high-speed railway roadbed is repaired. It has the following disadvantages: the repair structure is characterized in that steel plates for connecting anchor cables are placed under a bed plate and construction of soil nails in a basement is completed when a railway is newly built, the repair structure is prepared in advance, if an upwarp deformation area exists, the repair structure is implemented, the construction difficulty is high, the repair structure only pulls the steel plates through the anchor cables to limit the upwarp of a roadbed, and the passive control is realized.

Chinese patent 201410042388.1, a high-speed railway roadbed is upwarped and repaired reinforced structure, the structure drills pressure relief holes from the bottoms of roadbeds at the side ditches at the two sides of a cutting, utilizes the pressure relief holes to release expansive force of expansive rock soil, is favorable for downward deformation of a ballastless track supporting layer when an anchor is pulled, is favorable for tensile force of an anchor rope, and presses the ballastless track supporting layer downward, but has the following defects: the track supporting layer is pressed downwards through the tensile force of the anchor cable to restore the target position of the upper arch road base elevation, the tensile force of the anchor cable is not easy to control, the target elevation cannot be reduced, and the target elevation can be lower than the target elevation if the tensile force of the anchor cable is larger.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome foretell defect, provide a construction equipment of railway roadbed filler cutting replacement, be convenient for accurate, the fly-cutting road bed and the relevant problem of renovation road bed deformation, can implement in operation railway skylight point, need not to interrupt the driving.

The utility model aims at realizing through the following technical scheme: the utility model provides a railway roadbed filler cutting replacement construction equipment which characterized in that: the chain saw comprises two chain saw brackets and a chain saw arranged between the two chain saw brackets, wherein a chain saw power device and a traction power device are arranged at the bottom of each chain saw bracket, a transmission device is arranged on an output shaft of each chain saw power device, and each traction power device is connected with a traction rope; the chain saw bracket consists of a chain saw support and a chain saw frame, the bottom of the chain saw support is provided with a support wheel, the inner side surface of the chain saw support is provided with a roller, and the chain saw is connected with a transmission device.

The chain saw consists of a chain plate and a cutting tooth chain, wherein two ends of the chain plate are provided with supporting heads which are respectively fixed on chain saw power devices on two sides, two side surfaces of the chain plate are provided with grooves, the cutting tooth chain is annular and surrounds the periphery of the chain plate and is arranged in the grooves on two sides of the chain plate, and two ends of the cutting tooth chain are sleeved on the transmission device.

The cutting tooth chain is formed by connecting a plurality of sections of cutting tooth units.

The cutting pick unit is formed by connecting a plurality of cutting picks with different sizes in sequence from small to large.

The cutting tooth chain is formed by sequentially connecting a plurality of sections of cutting tooth units according to the same cutting tooth direction.

The utility model has the advantages that:

1. construction cutting device simple structure, the transport is convenient, and the equipment is convenient.

2. The height of the cutting seam can be determined according to the replacement thickness of the roadbed filler, so that the engineering quantity can be controlled conveniently, the original roadbed can be protected to the maximum extent, the construction materials are saved, and the energy conservation, emission reduction, low carbon and environmental protection are facilitated.

3. The device is used for construction, the damage to original equipment facilities of the railway is small, and the problems related to deformation of the railway subgrade can be remedied under the condition of operating the skylight of the railway.

Drawings

Fig. 1 is a schematic structural diagram of the device of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a side view of fig. 1.

Figure 4 is an elevation view of a cut subgrade.

Fig. 5 is a top view of a cut subgrade.

Fig. 6 is a side view of a cut subgrade.

FIG. 7 is a view of the placement of a chainsaw bracket in the cutting apparatus.

FIG. 8 is a plan view of the remedial work.

FIG. 9 is a sectional view of the remedial work.

FIG. 10 is a partial configuration diagram of the reaction force device.

Wherein:

1-chain saw bracket, 2-chain saw power device, 3-traction power device, 4-chain saw, 5-chain plate, 6-cutting tooth chain, 7-transmission device, 8-bracket wheel, 9-roller, 10-bracket head, 11-traction rope, 12-ground anchor, 13-steel rail, 14-track bed plate, 15-bearing layer, 16-cutting seam, 17-walking groove, 17-1-shoulder walking groove, 17-2-line walking groove, 18-roadbed, 19-mounting groove, 20-track structure limiting device, 21-cushion block, 22-steel support, 23-high polymer mortar, 24-track plate, 25-adjustable bolt, 26-anchor rod and 27-anchor rod anchoring length.

Detailed Description

Example (b): as shown in fig. 1 to 3, in the construction device for cutting and replacing the railway roadbed filling material, 2 chain saw brackets 1 which are oppositely arranged are positioned at two sides of a track bed plate 14, each chain saw bracket 1 consists of a chain saw support and a chain saw frame, the chain saw supports are respectively placed on supporting layers 15 at two sides of the track bed plate 14, a plurality of bracket wheels 8 are installed at the bottom of each chain saw support, the bracket wheels 8 move on the supporting layers 15, and a plurality of rollers 9 are installed at the inner side surface of each chain saw support, which is close to one side of the track bed plate 14, so that the chain saw brackets 1 can move conveniently; the bottom of the chain saw bracket is provided with a chain saw power device 2 and a traction power device 3, the chain saw power device 2 is provided by a hydraulic motor, the hydraulic motor is connected with a hydraulic pump station through a high-pressure oil pipe and provides driving power for a chain saw, a transmission device 7 selects a five-star wheel, the output shaft of the hydraulic motor is provided with the five-star wheel, and the traction power device 3 is connected with a traction rope 11; a chain saw 4 is arranged between the two chain saw brackets 1, the chain saw 4 consists of a chain plate 5 and a cutting tooth chain 6, grooves are formed in two side faces of the chain plate 5, the cutting tooth chain surrounds the periphery of the chain plate 5 and is arranged in the grooves in the two side faces of the chain plate 5, the grooves play a role in guiding the operation of the chain saw cutting tooth chain 6 in the process of cutting a roadbed, two ends of the cutting tooth chain 6 are sleeved on a five-star wheel 7, and the five-star wheel and the chain saw are driven to rotate through the rotation of a hydraulic motor; according to the length of the required chain saw 4, the cutting pick chain 6 is formed by connecting a plurality of cutting pick units, each cutting pick unit is formed by connecting a plurality of cutting picks with different sizes in sequence from small to large, and the plurality of cutting pick units are sequentially connected into a ring shape in the same cutting pick direction; supporting heads 10 are installed at two ends of each chain plate 5, the supporting heads 10 are respectively fixed on hydraulic motors at two sides, and the length of each chain plate 5 is adjusted by adjusting screw threads on the supporting heads 10, so that the cutting tooth chain 6 installed on each chain plate 5 is tensioned and compacted.

As shown in fig. 4 to 10, the method for constructing by using the apparatus for cutting and replacing fillers in railroad bed includes the following steps, taking the single file of the upper arch road base section 10m as an example:

step 1: in the range of a roadbed replacement region 10m, a shoulder walking groove 17-1 and an interline walking groove 17-2 with certain depth and width are respectively dug in a shoulder and an interline close to one side of a supporting layer 15, mounting grooves 19 with certain depth and width are dug in two sides of the supporting layer 15 at one end of the region to be replaced and a roadbed surface layer 18 below the supporting layer 15, the mounting grooves are used for mounting a cutting replacement construction device, and steel supports 22 are mounted in the mounting grooves 19 below the supporting layer 15 to vertically support a track structure;

step 2: respectively carrying the cutting replacement construction device to an on-line assembly, connecting a hydraulic motor and a traction power device 3 with a hydraulic pump station through high-pressure oil pipes, symmetrically fixing ground anchors 12 at certain distances in a road shoulder and an inter-line walking groove 17 in a replacement region along the longitudinal direction of a line, connecting a traction rope 11 with the ground anchors 12, and placing a chain saw support of a chain saw bracket 1 on supporting layers 15 at two sides at a mounting groove 19;

and step 3: starting a hydraulic motor, driving a chain saw cutting tooth chain 6 to rotate through a five-star wheel, starting a traction power device 3 after the chain saw cutting tooth chain 6 runs stably, pulling a chain saw 4 to reach a length through a traction rope 11 under the action of the traction power device 3 and the counter force provided by a ground anchor 12, cutting a cutting seam 16 with a certain width on the surface layer of a roadbed 18, and placing a plurality of cushion blocks 21 in the cutting seam 16 at intervals for vertical support;

and 4, step 4: the steel structure track structure limiting devices 20 are symmetrically arranged in the longitudinal road shoulders along the line and in the line-to-line walking grooves 17 at certain intervals in the replacement area range, the steel structure track structure limiting devices 20 are embedded with anchor rods 26 in the walking grooves 17 to certain anchoring depth 27, and are connected with the track bed board 14 through adjustable bolts 25 and used for correcting the track structure and limiting the track structure transversely;

and 5: after the roadbed 18 is cut in the range of the replacement area to form a through cutting gap, firstly measuring the track elevation and the plane position before adjusting the track structure elevation and the plane, and determining the target geometric state; along the same cross section, in a cutting seam at the bottom of a supporting layer 15, installing ultrathin jacks at intervals at certain distances under the corresponding steel rail, removing an original vertical steel support 22, a cushion block 21 and a transverse track structure limiting device 20, performing track structure elevation adjustment operation, measuring the geometric state of a track structure in real time in the adjustment process, ensuring the adjustment precision, and installing a limiting cushion block 21 in the cutting seam 16 for vertical support after reaching an elevation target position; after the elevation adjustment is finished, the transverse limiting constraint of the track structure limiting device 20 is released, and the track structure is transversely pushed to the target plane position by taking the track structure limiting device 20 as a counter force basis, and then the transverse limiting is recovered;

step 6: after the adjustment of the elevation and the plane position is finished, filling and repairing the cut seam 16 by adopting high polymer mortar 23 below the supporting layer 15;

and 7: then, the walking groove 17 and the mounting grooves 19 at the two sides of the walking groove are tamped by adopting broken stones; the walking grooves 17 are tamped by adopting concrete to seal and backfill to form a sealing layer; filling and repairing the cut seam 16 by using high polymer mortar; filling the mounting groove 19 below the supporting layer 15 with polymer concrete; and (3) adopting a polyurethane caulking material to perform caulking sealing on the replacement area track plate 24, the supporting layer 15 and the walking groove 17 sealing layer, finishing the arch-up treatment of the railway of the road section and restoring the line.

Claims (5)

1. The utility model provides a railway roadbed filler cutting replacement construction equipment which characterized in that: the chain saw comprises two chain saw brackets and a chain saw arranged between the two chain saw brackets, wherein a chain saw power device and a traction power device are arranged at the bottom of each chain saw bracket, a transmission device is arranged on an output shaft of each chain saw power device, and each traction power device is connected with a traction rope; the chain saw bracket consists of a chain saw support and a chain saw frame, the bottom of the chain saw support is provided with a support wheel, the inner side surface of the chain saw support is provided with a roller, and the chain saw is connected with a transmission device.

2. The railroad bed filler cutting and replacing construction device according to claim 1, wherein: the chain saw consists of a chain plate and a cutting tooth chain, wherein two ends of the chain plate are provided with supporting heads which are respectively fixed on chain saw power devices on two sides, two side surfaces of the chain plate are provided with grooves, the cutting tooth chain is annular and surrounds the periphery of the chain plate and is arranged in the grooves on two sides of the chain plate, and two ends of the cutting tooth chain are sleeved on the transmission device.

3. The cutting and replacing construction device for the filler of the railway roadbed of claim 2, wherein: the cutting tooth chain is formed by connecting a plurality of sections of cutting tooth units.

4. The railroad bed filler cutting and replacing construction device according to claim 3, wherein: the cutting pick unit is formed by connecting a plurality of cutting picks with different sizes in sequence from small to large.

5. The railroad bed filler cutting and replacing construction device according to claim 4, wherein: the cutting tooth chain is formed by sequentially connecting a plurality of sections of cutting tooth units according to the same cutting tooth direction.

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