CN111439280A - Novel universal construction transport vehicle for subway main track and use method thereof - Google Patents
Novel universal construction transport vehicle for subway main track and use method thereof Download PDFInfo
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- CN111439280A CN111439280A CN202010184222.9A CN202010184222A CN111439280A CN 111439280 A CN111439280 A CN 111439280A CN 202010184222 A CN202010184222 A CN 202010184222A CN 111439280 A CN111439280 A CN 111439280A
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- 238000010276 construction Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000032258 transport Effects 0.000 claims description 107
- 229910000831 Steel Inorganic materials 0.000 claims description 90
- 239000010959 steel Substances 0.000 claims description 90
- 238000003466 welding Methods 0.000 claims description 67
- 239000000463 material Substances 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000003137 locomotive effect Effects 0.000 claims description 11
- 230000005674 electromagnetic induction Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 7
- 238000013016 damping Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 241000361919 Metaphire sieboldi Species 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 241001669679 Eleotris Species 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D3/00—Wagons or vans
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2203/00—Devices for working the railway-superstructure
- E01B2203/14—Way of locomotion or support
- E01B2203/141—Way of locomotion or support on the track to be treated
Abstract
The invention relates to the technical field of urban rail transit engineering, in particular to a novel universal construction transport vehicle for subway main track and a use method thereof, wherein the transport vehicle comprises a power traction vehicle head, a carrying flat plate, a rear wheel set and a hydraulic lifting device, and is characterized in that the transport vehicle adopts an assembled structure, the power traction vehicle head provides driving force for the traveling of the whole vehicle, the power traction vehicle head and the rear wheel set are movably connected with the carrying flat plate through an upper central disc, a lower central disc and a central pin, the hydraulic lifting device can be used for lifting or reducing the height of the carrying flat plate to adjust the operation position during construction operation, and is fixedly connected to the tail part of the carrying flat plate through bolts; the whole machine is convenient to hoist, transfer and transport, occupies less resources and is convenient to save cost.
Description
Technical Field
The invention relates to the technical field of urban rail transit engineering, in particular to a novel universal construction transport vehicle for subway main track and a use method thereof.
Background
At present, in the construction operation of the subway main line of the urban rail transit in China, the transportation mode of the combination of a rail car and a flat car or special carrying equipment is mostly adopted for transporting materials and equipment. In the combined transportation of the rail car and the flat car, the rail car mainly provides traction power, and the flat car is used as a main material or equipment bearing transportation platform and can transport rail welding containers, concrete mixing tanks, electromagnetic induction normalizing devices, rail paving machines, concrete pumps, reinforcing steel bars, sleepers, rail adjusting supports, supporting screw rods, ditch templates and the like; the required auxiliary assembly of this kind of transportation is more, occupies railcar and flatcar time in a large number in the operation process, and whole car is bulky can't pass the portal hoisting equipment in the tunnel, and equipment overweight is unfavorable for the operation in the main track section of track section that the accent rail support supported, and whole car transition cost of transportation is high. The special carrying equipment adopts an individually customized automobile chassis structure with power to carry operation devices such as a welded rail container, a stirring tank or a ground pump and the like, so that the construction efficiency of welded rail or concrete transportation or concrete pouring is improved; only can improve to the single process operating efficiency among this kind of operation mode, equipment performance is single, and the commonality is not enough, is not convenient for transport materials such as required reinforcing bar of construction, sleeper, accent rail support, support lead screw, ditch template, and the total repacking cost is higher.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a novel subway main track construction transport vehicle and a using method thereof, the novel subway main track construction transport vehicle is provided with a basic small-sized general transport structure with functions of self-powered carrying, carrying and operating equipment, transporting materials and towing, and can be used for selecting carrying and welding operation devices such as a track container, a concrete stirring tank, a track laying machine, a concrete pump and the like according to construction working conditions, dragging and transporting materials such as reinforcing steel bars, sleepers, track adjusting supports, supporting screw rods, ditch templates and the like, so that the labor intensity of operators is reduced, and the construction operation efficiency is improved.
In order to realize above-mentioned purpose, design a novel general construction transport vechicle of subway main track, including power traction locomotive, delivery flat board, back wheelset and hydraulic lifting device, its characterized in that for adopting the pin-connected panel structure, power traction locomotive advances for whole car and provides drive power, and power traction locomotive, back wheelset form swing joint through upper and lower heart dish, core pin with the delivery flat board, and hydraulic lifting device can be used to the lifting or reduce the dull and stereotyped height of delivery and adjust the operation position when construction operation, through bolt fixed connection at the dull and stereotyped afterbody of delivery.
The power tractor head comprises a frame, a transmission structure, a drive axle, a bearing platform, guide wheels, a control console, a hydraulic system and a pneumatic system, wherein the frame is used as a carrier of the power tractor head, the transmission structure is arranged in a box-shaped structure inside the frame, the bearing platform is welded at the rear half part of the frame, a lower center plate, a center pin and a lower side bearing are welded on the bearing platform, the drive axle is arranged below the bearing platform and connected with the transmission structure to output power, the guide wheels are arranged in the front of the frame and below the two rear ends, the control console and the hydraulic system are arranged on the two sides of the box-shaped structure of the transmission structure, and pneumatic system accessories are arranged at the rear of the control.
The carrying flat plate is used as a bearing and transporting structure of a whole vehicle and is formed by welding channel steel, I-shaped steel and steel plates, and comprises main beams, cross beams, end beams, supporting beams and cover plates, wherein the four main beams are longitudinally arranged in an aligned mode according to a certain interval, the cross beams are transversely aligned to connect adjacent main beams to form a main body frame of the carrying flat plate, the end beams are respectively welded at two ends of the main body frame, the supporting beams are welded at positions close to the end beams, the main body frame is used as a bearing structure for connecting the carrying flat plate with a power traction vehicle head and a rear wheel set, an upper center plate and an upper side bearing.
The rear wheel set is movably hinged with a carrying flat plate through a lower center plate and a center pin welded on the swing bolster and simultaneously bears the pressure of the carrying flat plate, the cross beam and the swing bolster form a non-swing-table device to limit the displacement of the swing bolster, four groups of double-coil spiral springs are arranged between the cross beam and the swing bolster for vibration reduction, two pairs of side frames are symmetrically fixed below two ends of the cross beam and are reinforced through the end beams, two ends of each side frame are respectively provided with a group of pneumatic brake sub-pumps, and two groups of wheel sets are subjected to speed reduction braking through tread braking.
The hydraulic lifting device is used for adjusting the height of a carrying flat plate, and comprises a mounting seat, a box beam, a cross beam, box sleeves and hydraulic support legs, wherein the mounting seat is integrally of a door-shaped structure, the mounting seat is fixed at the tail end of the carrying flat plate through bolts, the box beam is fixed under the mounting seat, the cross beam is nested in the box beam, the box sleeves are welded at two ends of the cross beam, the hydraulic support legs penetrate through the box sleeves from the inside, the bottoms of the box sleeves are fixed through the bolts, and the lifting of the hydraulic support legs is controlled by a hydraulic system of a power traction vehicle head.
1. A use method of a novel universal construction transport vehicle for subway main track is characterized by comprising the following steps:
A. hoisting the general construction transport vehicle from a feed opening of a track laying base into a subway main track,
a-1, hoisting a power traction vehicle head to an underground main track, enabling front and rear guide wheels to respectively contact the main track, enabling rubber wheels on a drive axle to be tightly attached to the main track, and starting the power traction vehicle head to normally advance for a certain distance along the track direction;
a-2, integrally hoisting a rear wheel set to a main track, enabling two groups of wheel sets in the rear wheel set to be respectively contacted with the main track of a subway, moving a power traction headstock to the position of the rear wheel set, dragging the rear wheel set to retreat for a part of distance by using a traction structure, fixing the wheel sets of the rear wheel set on the main track by using braking iron shoes, preventing sliding, loosening the traction structure between the power traction headstock and the rear wheel set, and starting the power traction headstock to travel for a proper distance;
a-3, hoisting the carrying flat plate to the underground by the base gantry crane, gradually adjusting the position of the carrying flat plate, aligning an upper center plate and a pin hole with a power traction headstock, a lower center plate and a center pin on a rear wheel set, respectively connecting an air pressure pipeline and a hydraulic pipeline of the rear wheel set with a hydraulic system and an air pressure system of the power traction headstock, starting the power traction headstock after the carrying flat plate is installed, driving the whole vehicle to travel on a subway main track, and completing the assembly work of the general construction transport vehicle;
B. the general construction transport vehicle operates on the main track of the subway,
b-1, when the universal construction transport vehicle carries out rail welding operation on a subway main line track, the universal construction transport vehicle moves to a position right below a feed opening, a base gantry crane hoists a welded rail container to a carrying flat plate, the installation stability of the welded rail container is ensured through a guide groove on the welded rail container and a twist lock installed on a beam of the carrying flat plate, the universal construction transport vehicle transports the welded rail container to a rail welding position along the subway main line track, brakes and stops the vehicle stably, a fastener near a rail joint is removed, the end surface and a welding area of the rail joint are ground, the horizontal and the direction of the rail joint are adjusted by a support pad, after the position of the rail joint is adjusted, a hydraulic support leg is controlled to adjust the height of the carrying flat plate, so that the carrying flat plate is separated from a wheel set, the rail welding operation height is lifted up, and a hydraulic telescopic arm in the welded rail container adjusts a rail welding machine to the rail welding position, the welding of the rail joints is completed according to a rail welding operation program, after the welding of a rail structure is completed, the rail welding machine is retracted into a rail welding container, the hydraulic support legs are controlled to be retracted, the tail of the carrying flat plate is placed back onto the rear wheel set, the hydraulic support legs are retracted to be in a suspended state, the power traction vehicle head is started, the whole vehicle is moved to the next rail welding operation position, a layer of steel plate is padded at the rail welding seam during traveling, the rubber wheels are prevented from being scalded, and the steel plate is removed after the whole vehicle passes through;
b-2, when the general construction transport vehicle carries out concrete transportation operation on the subway main track, the general construction transport vehicle runs to the position under the feed opening, the base gantry crane hoists the concrete mixing tank (8-1) to the carrying flat plate (1-2), the installation stability of the concrete mixing tank (8-1) is ensured through a support of the concrete mixing tank (8-1) and a U-shaped clamp (3-9) arranged on a main beam (3-1) of the carrying flat plate (1-2), the general construction transport vehicle transports the concrete mixing tank (8-1) to the operation position of the concrete pump (11-1) along the subway main track (6-2), the vehicle is braked and stopped stably, the discharge opening of the concrete mixing tank (8-1) is aligned to the feed opening of the concrete pump (11-1), the height of the tail end of the carrying flat plate (1-2) is jacked up by the hydraulic support legs (5-5), so that the carrying flat plate (1-2) is separated from the rear wheel set (1-3), the relative position between the discharge opening of the concrete mixing tank (8-1) and the feed opening of the concrete pump (11-1) is adjusted, the rotation of the mixing drum is controlled to carry out concrete discharging and dumping until the concrete in the mixing drum is dumped and after the concrete dumping is finished, controlling the hydraulic support legs (5-5) to contract, putting the carrying flat plate (1-2) back to the rear wheel set (1-3), contracting the hydraulic support legs (5-5) to a suspended state, starting the power traction vehicle head (1-1), returning the whole vehicle to the position of the feed opening, reloading the concrete stirring tank (8-1) with concrete, and repeating the concrete transportation work;
b-3, when the general construction transport vehicle carries out the normalizing operation of the steel rail joint on the subway main track (6-2), two sets of electromagnetic induction normalizing electric boxes (9-1), a water chiller (9-2), a profiling bracket (9-3) and an auxiliary machine tool are arranged and fixed on a carrying flat plate (1-2), the steel rail welding joints on the left and right sides of the main track (6-2) can carry out the normalizing heat treatment at the same time, a power traction locomotive (1-1) is started, the whole vehicle is moved to the welding line of the steel rail, a steel rail clamping device is used for clamping the steel rail, the steel rail is lifted to the horizontal state, the profiling bracket (9-3) is installed, the electromagnetic induction normalizing electric boxes (9-1) are operated to carry out the high-frequency electromagnetic normalizing operation, the profiling bracket (9-3) is removed after the normalizing operation is finished, placing and installing a steel rail, starting a power traction vehicle head (1-1) and running to the position of the next operation point;
b-4, when the general construction transport vehicle drags the track laying machine (10-1) on the subway main line track (6-2), hoisting the track laying machine (10-1) with the contracted support legs onto the subway main line track (6-2), combining a traction structure (2-9) welded on a rear wheel set (1-3) with a dragging traction structure on the support legs of the track laying machine (10-1) by the general construction transport vehicle, starting a power traction locomotive (1-1), and dragging the track laying machine (10-1) to a track laying operation position;
b-5, when the general construction transport vehicle tows the concrete pump (11-1) on the subway main track (6-2), combining a traction structure (2-9) welded on a rear wheel set (1-3) with a towing traction structure on the concrete pump (11-1) by the general construction transport vehicle, starting a power traction vehicle head (1-1), and towing the concrete pump (11-1) to a concrete pouring operation position;
b-6, when the universal construction transport vehicle transports materials on a subway main track (6-2), a base gantry crane (6-1) hoists materials such as a steel bar (12-1), a sleeper (12-2), a track adjusting support (12-3), a supporting screw rod (12-4), a ditch template (12-5) and the like to a carrying flat plate (1-2) of the universal construction transport vehicle at a feed opening, a power traction vehicle head (1-1) is started, the materials are transported to an operation point for unloading, and when the universal construction transport vehicle carries other equipment, a traction structure (2-9) arranged on the tail of the whole vehicle can be used for dragging the material transport plate vehicle and considering material transportation operation;
b-7, when the universal construction transport vehicle needs to be hoisted to the ground on the subway main track (6-2), two base earthworm gantry cranes (6-1) can be selected to simultaneously and integrally hoist the whole universal construction transport vehicle, the lifting tools and the steel wire ropes of the two gantry cranes respectively pass through the lifting lug structures arranged on the power traction vehicle head (1-1) and the rear wheel set (1-3), and simultaneously, the contraction operation is carried out, so that the whole universal construction transport vehicle is hoisted to the ground from the subway main track;
and B-8, when the universal construction transport vehicle is used for transition transportation, the whole machine is hoisted to a long-distance freight transport trailer (14-2) by using a base gantry crane (6-1) or a truck crane (14-1), and the long-distance freight transport vehicle can be transported to the next working site after being bound and fixed.
Compared with the prior art, the invention has the advantages that:
1. compared with a rail car and a flat car, the general construction transport car has smaller and more compact overall size, and is convenient for passing through hoisting equipment such as a track laying machine and the like erected in a tunnel;
2. the whole machine of the general construction transport vehicle is self-powered and can carry various operation devices, including a welded rail container, a concrete mixing tank, an electromagnetic induction normalizing device, a rail paving machine, a concrete pump and the like;
3. the universal construction transport vehicle adopts a low-position trailer, so that materials, including reinforcing steel bars, sleepers, rail adjusting supports, supporting screw rods, ditch templates and the like, can be conveniently hauled between a feed opening and an operation point;
4. the whole machine is convenient to hoist, transfer and transport, occupies less resources and is convenient to save cost.
Drawings
FIG. 1(a) is a schematic view of a general construction truck;
FIG. 1(b) is a front view of the general construction vehicle in the tunnel;
FIG. 1(c) is a left side view of the operation in the tunnel of the general construction truck;
FIG. 2(a) is a front view of a power tractor head;
FIG. 2(b) is a top view of a power traction cab;
FIG. 2(c) is a left side view of the power traction vehicle head;
FIG. 2(d) is a right side view of the power traction cab;
FIG. 3(a) is an isometric view of a carrier plate;
FIG. 3(b) is a front view of the carrier plate;
FIG. 3(c) is a top view of the carrier plate;
FIG. 4(a) is a front view of a rear wheel set;
FIG. 4(b) is a left side view of the rear wheel set;
fig. 5(a) is a front view of the hydraulic lifting device;
FIG. 5(b) is a left side view of the hydraulic lifting device;
FIG. 6(a) is a dynamic traction vehicle head hoisted by a base gantry crane;
FIG. 6(b) shows a rear wheel set hoisted by a base gantry crane;
fig. 6(c) shows a base gantry crane lifting and carrying a flat plate and a hydraulic lifting device;
FIG. 7(a) is a front view of a welded rail container carried by a general construction transport vehicle;
FIG. 7(b) is a left side view of a welded rail container carried by the general construction transportation vehicle;
FIG. 8 is a general construction truck carrying a concrete mixing tank;
FIG. 9 shows a general construction transportation vehicle carrying an electromagnetic induction normalizing device;
FIG. 10 is a general construction vehicle carrying a track laying machine;
FIG. 11 is a concrete ground pump carried by a general construction truck;
FIG. 12 illustrates a general construction vehicle transporting materials;
FIG. 13 is a general construction truck complete machine hoist;
FIG. 14(a) is a general construction transportation vehicle for truck crane hoisting;
FIG. 14(b) is a universal construction transport vehicle for long haul freight trailer transition transportation;
in the figure: 1-1, a power traction vehicle head 1-2 carries a flat plate 1-3, a rear wheel set 1-4 hydraulic lifting device 1-5 in a circular tunnel region;
2-1, a frame 2-2, a transmission structure 2-3, a drive axle 2-4, a bearing platform 2-5, a guide wheel 2-6, a control console 2-7, a hydraulic system 2-8, an air pressure system 2-9, a traction structure 2-10, a lower center plate 2-11, and a lower side bearing 2-12 of a center pin;
3-1 main beam 3-2 cross beam 3-3 end beam 3-4 support beam 3-5 lifting lug 3-6 cover plate 3-7 spacing device 3-8 neck 3-9U-shaped clamp 3-10 twist lock 3-11 upper side bearing of upper center plate 3-12;
4-1 bolster 4-2 cross frame 4-3 side frame 4-4 end beam 4-5 wheel pair 4-6 damping device 4-7 brake device;
5-1 mounting seat 5-2 box beam 5-3 crossbeam 5-4 box sleeve 5-5 hydraulic support leg;
6-1 base gantry crane 6-2 is the positive track;
7-1 welding rail container 7-2 hydraulic telescopic arm 7-3 welding rail machine;
8-1 concrete mixing tank;
9-1 electromagnetic induction normalizing electric box 9-2 water chiller 9-3 copying bracket;
10-1, a track laying machine;
11-1 concrete ground pump;
12-1 steel bar 12-2 sleeper 12-3 rail adjusting bracket 12-4 supporting screw rod 12-5 ditch template;
14-1 truck crane 14-2 long haul freight trailer.
Detailed Description
The construction and principles of such a device will be apparent to those skilled in the art from the following further description of the invention taken in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1: novel general construction transport vechicle structure of subway main track is constituteed
In order to achieve the purpose, the general construction transport vehicle designed by the invention adopts an assembled structure as a whole, and mainly comprises a power traction vehicle head (1-1), a carrying flat plate (1-2), a rear wheel set (1-3) and a hydraulic lifting device (1-4), wherein the power traction vehicle head (1-1) and the rear wheel set (1-3) are movably connected with the carrying flat plate (1-2) through an upper central disc, a lower central disc and a central pin and are used for bearing the weight of the carrying flat plate (1-2) and simultaneously meeting the steering function, the power traction vehicle head (1-1) provides forward driving force for the whole vehicle, the carrying flat plate (1-2) mainly carries equipment or transports materials, and the hydraulic lifting device (1-4) can be used for lifting or reducing the height of the carrying flat plate (1-2) to adjust the operation position during construction operation, is fixedly connected with the tail part of the carrying flat plate (1-2) through bolts. As shown in fig. 1.
The power traction vehicle head (1-1) is used as a whole vehicle driving structure and mainly comprises a vehicle frame (2-1), a transmission structure (2-2), a drive axle (2-3), a bearing platform (2-4), guide wheels (2-5), a control console (2-6), a hydraulic system (2-7) and an air pressure system (2-8). The frame (2-1) is a box-shaped carrier welded by steel plates, I-steel and channel steel, a main transmission structure (2-2) is installed inside the frame, consoles (2-6), hydraulic systems (2-7), air pressure systems (2-8) and other accessories are arranged on platforms on two sides of the frame, the rear half portion of the frame (2-1) is used as a bearing platform (2-4) of a carrying flat plate (1-2), a drive axle (2-3) for power output is installed below the bearing platform (2-4), guide wheels (2-5) are installed at the bottoms of the front end and the rear end of the frame (2-1), and traction structures (2-9) are welded at the front end and the rear end of the frame (2-1). An engine in the transmission structure (2-2) is mainly used for providing output power for a power traction vehicle head and is connected with a drive axle (2-3) to transmit rotating speed and output torque. The bearing platform (2-4) mainly centralizes the pressure of carrying equipment or transporting materials of the carrying flat plate (1-2) through the structures of the lower center plate (2-10), the center pin (2-11) and the lower side bearing (2-12). The guide wheels (2-5) are used as a traveling wheel pair for the power traction vehicle head (1-1) to travel on the subway main track. The control console (2-6) is arranged at the left front end of the frame (2-1), adopts a left driving position and is responsible for controlling the actions of starting, braking, gear shifting, hydraulic lifting and the like of the whole vehicle. The hydraulic system (2-7) controls the state of a hydraulic clutch in the transmission structure (2-2) to realize the gear shifting and speed changing of the whole vehicle. The pneumatic system (2-8) is responsible for controlling the pneumatic brake of the power traction vehicle head (1-1) and the rear wheel set (1-3). As shown in fig. 2.
The carrying flat plate (1-2) is a bearing and transporting structure of a whole vehicle, is formed by welding channel steel, I-shaped steel and steel plates, and mainly comprises a main beam (3-1), a cross beam (3-2), an end beam (3-3), a supporting beam (3-4), a lifting lug (3-5), a cover plate (3-6), a limiting device (3-7) and a traction structure (2-9). Four long I-shaped steels are longitudinally arranged to serve as main beams (3-1) of a carrying flat plate (1-2), and short channel steels and I-shaped steels serving as cross beams (3-2) are welded between the adjacent two I-shaped steels of the main beams (3-1) to be connected. The end beams (3-3) adopt channel steel and I-steel as the connecting beams at the front end and the rear end of the main beam (3-1), and traction structures (2-9) are welded between the front end beam and the rear end beam (3-3). The supporting beam (3-4) is positioned on two short I-shaped steel beams (3-2) welded at a position close to the end beam (3-3), the lower part and two end positions of the supporting beam (3-4) are respectively welded with an upper center plate (3-11) and an upper side bearing (3-12) which are used for being movably connected with and bearing the power traction vehicle head (1-1) and the rear wheel set (1-3) and transferring the pressure of carrying equipment and transporting materials to the power traction vehicle head (1-1) and the rear wheel set (1-3). Cover plates (3-6) are welded and laid above the whole carrying flat plate (1-2), equipment mounting limiting devices (3-7) carried on the cover plates (3-6) according to working conditions are welded, and lifting lugs (3-5) for lifting are welded on the outer sides of the two main beams (3-1) at the edges. The limiting device (3-7) can select the twist lock (3-10), the U-shaped card (3-9) and the clamping groove (3-8) according to the condition of the carried equipment, and can fix and limit the carried equipment; the twistlocks (3-10) are fixed at the positions of the preformed holes on the cover plates (3-6), and the container guide grooves are fixed through the cover plates (3-6); the U-shaped card (3-9) fixes the main beam (3-1) and the equipment together through the cover plate (3-6); the clamping groove (3-8) is welded on the cover plate (3-6) and limits the equipment installation edge. As shown in fig. 3.
The rear wheel set (1-3) mainly adopts a two-axle bogie structure and is used for supporting a carrying flat plate (1-2), and mainly comprises a swing bolster (4-1), a cross frame (4-2), side frames (4-3), end beams (4-4), wheel sets (4-5), vibration dampers (4-6) and brake devices (4-7). The swing bolster (4-1) is welded into a box-shaped structure by adopting steel plates, and the upper part of the swing bolster (4-1) bears the pressure from the carrying flat plate (1-2) through a lower center plate (2-10), a center pin (2-11) and a lower side bearing (2-12) which are welded. The cross frame (4-2) is fixed on the side frames (4-3) at two sides by two I-steel bolts at intervals, the swing bolster (4-3) is wrapped in a concave shape to limit the movement of the swing bolster (4-3), and the swing bolster (4-3) and the cross frame (4-2) transmit pressure through vibration dampers (4-6) arranged at two sides of the cross frame (4-2). The side frames (4-3) are fixed right below two ends of the cross frame (4-2) through bolts, the whole body is in a bilateral symmetry structure, a single side frame (4-3) is formed by welding steel plates and I-shaped steel, and the side frames (4-3) and the wheel pairs (4-5) are fixedly positioned and arranged in the middle of the I-shaped steel. The end beams (4-4) are formed by welding round pipes and T-shaped steel and are used for connecting and fixing two ends of the side frames (4-3), the front end beam and the rear end beam (4-4) are respectively welded with traction structures (2-9), the traction structures (2-9) are formed by welding steel plates and bolts, and can be hauled in a low-position towing mode. The whole rear wheel set (1-3) adopts a series of spring damping structures, is arranged at two ends between the swing bolster (4-1) and the cross frame (4-2), and realizes the damping effect by connecting double-coil spiral springs formed by combining four groups of cylindrical compression springs with opposite inner and outer spiral directions in parallel. The brake device (4-7) adopts four groups of brake shoes to brake the tread of the steel wheel of the rear wheel set (1-3), a pneumatic system (2-8) is formed by a brake pedal, an air pump, an air storage tank and a pneumatic valve which are arranged on the power traction vehicle head (1-1), and the brake shoes are held tightly and loosened by controlling the extension and contraction of push rods of brake sub-pumps arranged at the two ends of a side frame (4-3) of the rear wheel set (1-3). As shown in fig. 4.
The hydraulic lifting device (1-4) is used for adjusting the height of a carrying flat plate (1-2), mainly comprises a mounting seat (5-1), a box girder (5-2), a cross beam (5-3), a box type sleeve (5-4) and hydraulic support legs (5-5), and is integrally of a door-shaped structure. The mounting seats (5-1) are formed by welding channel steel and steel plates and are fixedly connected to a cross beam (3-2) and an end beam (3-3) at the tail end of the carrying flat plate (1-2) through bolts, and the two mounting seats (5-1) are fixedly welded by four rectangular steel pipes. The box girder (5-2) is formed into a box structure by connecting two channel steels and two layers of steel plates through bolts, the channel steels are arranged outwards and symmetrically and fixed below the mounting seat (5-1) through bolts. The cross beam (5-3) is formed by welding two channel steel and two layers of steel plates, the channel steel is arranged inwards and symmetrically in a C shape, and the cross beam (5-3) is nested inside the box beam (5-2). The box-type sleeves (5-4) are formed by welding channel steel and steel plates and are fixed at two ends of the cross beam (5-3) in a welding mode. The hydraulic support legs (5-5) are arranged in the box-type sleeves (5-4) and fixedly connected with bolts at the bottoms of the box-type sleeves (5-4), and the extension and retraction of the hydraulic support legs (5-5) are controlled by a hydraulic system (2-7) of the power traction vehicle head (1-1). As shown in fig. 5.
Example 2: application method of novel universal construction transport vehicle for subway main track
When the general construction transport vehicle is hoisted to enter a subway main track (6-2) from a discharge opening of a track laying base, the general construction transport vehicle can be disassembled and hoisted, the general construction transport vehicle is unloaded from a long-distance freight trailer (14-2) by using a base gantry crane (6-1), and a carrying flat plate (1-2), a power traction vehicle head (1-1) and a rear wheel set (1-3) are respectively hoisted to the flat ground. Firstly, hoisting a power traction vehicle head (1-1) to an underground main track (6-2), respectively contacting front and rear guide wheels (2-5) with the main track (6-2), enabling rubber wheels on a drive axle (2-3) to be tightly attached to the main track (6-2), starting the power traction vehicle head (1-1), and normally advancing for a certain distance along the track direction to prepare for subsequent hoisting. And hoisting the rear wheel set (1-3) to the front track (6-2) integrally, enabling two groups of wheel sets (4-5) in the rear wheel set (1-3) to be in contact with the front track (6-2) of the subway respectively, moving the power traction vehicle head (1-1) to the position of the rear wheel set (1-3), dragging the rear wheel set (1-3) to retreat for a part of distance by using a traction structure (2-9), fixing the wheel sets (4-5) of the rear wheel set (1-3) on the front track (6-2) by using brake shoes to prevent vehicle sliding, releasing the traction structure (2-9) between the power traction vehicle head (1-1) and the rear wheel set (1-3), and starting the power traction vehicle head (1-1) to travel for a proper distance. Finally, the base gantry crane (6-1) hoists the carrying flat plate (1-2) to the underground, the position of the carrying flat plate (1-2) is gradually adjusted to enable the upper center plate (3-11) and the pin hole to align with the power traction headstock (1-1), the lower center plate (2-10) and the center pin (2-11) on the rear wheel set (1-3) are respectively connected with the air pressure pipeline and the hydraulic pipeline of the rear wheel set (1-3) and the hydraulic system (2-7) and the air pressure system (2-8) of the power traction vehicle head (1-1), the power traction vehicle head (1-1) is started after the carrying flat plate (1-2) is installed, the whole vehicle is driven to normally move on the subway main track (6-2), and the assembling work of the general construction transport vehicle is completed at the moment. As shown in fig. 6.
When the general construction transport vehicle performs rail welding operation on the subway main track (6-2), the general construction transport vehicle runs to the position right below a feed opening, the base gantry crane (6-1) hoists the rail welding container (7-1) to the carrying flat plate (1-2), and the installation stability of the rail welding container (7-1) is ensured through a guide groove on the rail welding container (7-1) and a twist lock (3-10) installed on a cross beam (3-2) of the carrying flat plate (1-2). The general construction transport vehicle transports the welded rail container (7-1) to the welding position of the steel rail along the subway main track (6-2), brakes and stops the vehicle stably, removes the fasteners near the steel rail joint, derusts and polishes the end surface and the welding area of the steel rail joint, and adjusts the level and the direction of the steel rail joint by using the support pad. After the position of the steel rail joint is adjusted, the hydraulic support legs (5-5) are controlled to adjust the height of the carrying flat plate (1-2), the carrying flat plate (1-2) is separated from the rear wheel set (1-3), the carrying flat plate is jacked to the height of rail welding operation, the rail welding machine (7-3) is adjusted to the position of the steel rail welding by the hydraulic telescopic arms (7-2) in the rail welding container (7-1), and the welding of the steel rail joint is completed according to a rail welding operation program. After the welding of the steel rail structure is completed, the rail welding machine (7-3) is retracted to the rail welding container (7-1), the hydraulic support legs (5-5) are controlled to shrink, the tail of the carrying flat plate (1-2) is placed back to the rear wheel set (1-3), the hydraulic support legs (5-5) are shrunk to a suspended state, the power traction vehicle head (1-1) is started, the whole vehicle is moved to the next rail welding operation position, a layer of steel plate is padded at the position of a steel rail welding line during advancing, the rubber wheels are prevented from being scalded, and the steel plate is removed after the whole vehicle passes through. As shown in fig. 7.
When the general construction transport vehicle carries out concrete transportation operation on the subway main track (6-2), the general construction transport vehicle runs to the position under the feed opening, the base gantry crane (6-1) hoists the concrete mixing tank (8-1) to the carrying flat plate (1-2), and the installation stability of the concrete mixing tank (8-1) is ensured through the support of the concrete mixing tank (8-1) and the U-shaped clamp (3-9) installed on the main beam (3-1) of the carrying flat plate (1-2). The general construction transport vehicle transports the concrete mixing tank (8-1) to the operation position of the concrete pump (11-1) along the subway front track (6-2), brakes and stops the vehicle stably, the discharge opening of the concrete mixing tank (8-1) is aligned with the feed opening of the concrete pump (11-1), and the height of the tail end of the carrying flat plate (1-2) is lifted up through the hydraulic support legs (5-5), so that the carrying flat plate (1-2) is separated from the rear wheel set (1-3). And adjusting the relative position between the discharge opening of the concrete mixing tank (8-1) and the feed opening of the concrete pump (11-1), and controlling the rotation of the mixing drum to discharge and dump the concrete until the concrete in the mixing drum is dumped. After the concrete is poured, the hydraulic support legs (5-5) are controlled to shrink, the carrying flat plate (1-2) is placed back to the rear wheel set (1-3), the hydraulic support legs (5-5) are shrunk to be in a suspended state, the power traction vehicle head (1-1) is started, the whole vehicle is returned to the position of the feed opening, the concrete mixing tank (8-1) is reloaded with the concrete, and the concrete transportation work is repeated. As shown in fig. 8.
When the general construction transport vehicle carries out the normalizing operation of the steel rail joint on the subway main track (6-2), two sets of electromagnetic induction normalizing electric boxes (9-1), a water chiller (9-2), a profiling bracket (9-3) and an auxiliary machine tool are arranged and fixed on a carrying flat plate (1-2), the normalizing heat treatment can be simultaneously carried out on the steel rail welding joints on the left and right sides of the main track (6-2), a power traction locomotive (1-1) is started, the whole vehicle is moved to the welding seam of the steel rail, the steel rail is clamped by a steel rail clamping device, the steel rail is lifted to be in a horizontal state, the profiling bracket (9-3) is installed, the electromagnetic induction normalizing electric boxes (9-1) are operated to carry out the high-frequency electromagnetic normalizing operation, the profiling bracket (9-3) is dismantled after the normalizing operation is finished, the steel rail is placed and installed, and starting the power traction headstock (1-1) to move to the next working point position. As shown in fig. 9.
When the general construction transport vehicle drags the track laying machine (10-1) on the subway main line track (6-2), the track laying machine (10-1) with the contracted support legs is hoisted to the subway main line track (6-2), the general construction transport vehicle combines a traction structure (2-9) welded on a rear wheel set (1-3) with a dragging traction structure on the support legs of the track laying machine (10-1), a power traction vehicle head (1-1) is started, and the track laying machine (10-1) is dragged to a track laying operation position. As shown in fig. 10.
When the general construction transport vehicle is used for hauling the concrete pump (11-1) on the subway main track (6-2), the general construction transport vehicle combines a traction structure (2-9) welded on the rear wheel set (1-3) with a traction structure on the concrete pump (11-1), starts a power traction vehicle head (1-1), and hauls the concrete pump (11-1) to a concrete pouring operation position. As shown in fig. 11.
When the general construction transport vehicle transports materials on a subway main track (6-2), a base gantry crane (6-1) hoists the materials such as a steel bar (12-1), a sleeper (12-2), a track adjusting support (12-3), a support screw rod (12-4), a ditch template (12-5) and the like to a carrying flat plate (1-2) of the general construction transport vehicle at a feed opening, a power traction vehicle head (1-1) is started, and the materials are transported to an operation point for unloading. When the general construction transport vehicle carries other equipment, the traction structure (2-9) arranged on the tail of the whole vehicle can be used for dragging the material transport plate vehicle, and the material transport operation is considered. As shown in fig. 12.
When the universal construction transport vehicle needs to be hoisted to the ground on the subway main track (6-2), two base earthworm gantry cranes (6-1) can be selected to simultaneously and integrally hoist the whole universal construction transport vehicle, the lifting tools and the steel wire ropes of the two gantry cranes respectively pass through the lifting lug structures arranged on the power traction vehicle head (1-1) and the rear wheel set (1-3), and simultaneously, the contraction operation is carried out, so that the whole universal construction transport vehicle is hoisted to the ground from the subway main track. As shown in fig. 13.
When the general construction transport vehicle is used for transition transportation, the whole machine is hoisted to a long-distance freight trailer (14-2) by using a base gantry crane (6-1) or a truck crane (14-1), and the whole machine can be transported to the next working site after being bound and fixed. As shown in fig. 14.
Claims (6)
1. The utility model provides a novel general construction transport vechicle of subway main track, draws locomotive, delivery flat board, back wheelset and hydraulic lifting device including power, its characterized in that for adopting the pin-connected panel structure, power draws the locomotive to advance for whole car and provides drive power, and power draws locomotive, back wheelset to form swing joint through upper and lower heart dish, core pin with the delivery flat board, and hydraulic lifting device can be used to the lifting or reduces the dull and stereotyped height of delivery and adjust the operation position when construction operation, through bolt fixed connection at the dull and stereotyped afterbody of delivery.
2. The utility model discloses a novel subway main track general construction transport vechicle of claim 1, characterized in that power tractor head comprises frame, transmission structure, transaxle, load-bearing platform, leading wheel, control cabinet, hydraulic system, pneumatic system, the frame is as the carrier of power tractor head, transmission structure embeds in the inside box structure of frame, load-bearing platform welding is in frame latter half, lower heart dish, king pin, lower side bearing welding is on load-bearing platform, the transaxle is installed below load-bearing platform, be connected with transmission structure output power, the leading wheel is installed in the frame front, rear both ends below, the control cabinet, hydraulic system installs in transmission structure's box structure both sides, pneumatic system accessory is installed at the control cabinet rear and frame tail end.
3. A novel subway main track general construction transport vehicle as claimed in claim 1, wherein said carrying plate is welded by channel steel, I-steel and steel plate as the carrying and transporting structure of the whole vehicle, and comprises main beams, cross beams, end beams, supporting beams and cover plates, wherein four main beams are arranged in longitudinal alignment at a certain interval, and the cross beams are transversely aligned to connect adjacent main beams to form the main frame of the carrying plate, the end beams are respectively welded at both ends, the supporting beams are welded at the positions close to the end beams, and as the carrying plate and the connecting and carrying structure of the power traction vehicle head and the rear wheel set, the upper center plate and the upper side bearing are welded on the supporting beams, and the cover plate is welded on the carrying plate for transportation.
4. The utility model discloses a novel general construction transport vechicle of subway main track of claim 1, characterized in that back wheelset is as the load-bearing of whole car, walk the structure, including bolster, crossbearer, side bearer, end beam, wheel pair, damping device, arresting gear, back wheelset passes through the welded lower center plate on the bolster and central pin constitutes the activity hinge joint with the carrying flat board, bear the pressure of carrying flat board simultaneously, crossbeam and bolster constitute no shaking platform device and restrict the bolster displacement, carry out the damping through the left and right sides respectively four groups of two coil of helical springs between crossbeam and the bolster, two pairs of side bearers symmetry are fixed below the crossbeam both ends, consolidate through the end beam, the side bearer both ends are installed a set of pneumatic brake branch pump respectively, carry out the speed reduction braking through tread brake to two sets of wheel pairs.
5. The novel subway main track general construction transport vehicle as claimed in claim 1, wherein the hydraulic lifting device is used for adjusting the height of the carrying plate, and comprises a mounting seat, a box beam, a cross beam, box sleeves and hydraulic support legs, the whole body is of a door-shaped structure, wherein the mounting seat is fixed at the tail end of the carrying plate through bolts, the box beam is fixed under the mounting seat, the cross beam is nested in the box beam, the box sleeves are welded at two ends of the cross beam, the hydraulic support legs penetrate through the box sleeves from the inside, the bottom of the hydraulic support legs are fixed through bolt connection, and the lifting of the hydraulic support legs is controlled by a hydraulic system of a power traction vehicle head.
6. A use method of a novel universal construction transport vehicle for subway main track is characterized by comprising the following steps:
A. hoisting the general construction transport vehicle from a feed opening of a track laying base into a subway main track,
a-1, hoisting a power traction vehicle head to an underground main track, enabling front and rear guide wheels to respectively contact the main track, enabling rubber wheels on a drive axle to be tightly attached to the main track, and starting the power traction vehicle head to normally advance for a certain distance along the track direction;
a-2, integrally hoisting a rear wheel set to a main track, enabling two groups of wheel sets in the rear wheel set to be respectively contacted with the main track of a subway, moving a power traction headstock to the position of the rear wheel set, dragging the rear wheel set to retreat for a part of distance by using a traction structure, fixing the wheel sets of the rear wheel set on the main track by using braking iron shoes, preventing sliding, loosening the traction structure between the power traction headstock and the rear wheel set, and starting the power traction headstock to travel for a proper distance;
a-3, hoisting the carrying flat plate to the underground by the base gantry crane, gradually adjusting the position of the carrying flat plate, aligning an upper center plate and a pin hole with a power traction headstock, a lower center plate and a center pin on a rear wheel set, respectively connecting an air pressure pipeline and a hydraulic pipeline of the rear wheel set with a hydraulic system and an air pressure system of the power traction headstock, starting the power traction headstock after the carrying flat plate is installed, driving the whole vehicle to travel on a subway main track, and completing the assembly work of the general construction transport vehicle;
B. the general construction transport vehicle operates on the main track of the subway,
b-1, when the general construction transport vehicle performs rail welding operation on the subway main track (6-2), the general construction transport vehicle runs to the position right below a feed opening, the base gantry crane (6-1) hoists the rail welding container (7-1) to the carrying flat plate (1-2), and the installation stability of the rail welding container (7-1) is ensured through a guide groove on the rail welding container (7-1) and a twist lock (3-10) installed on a cross beam (3-2) of the carrying flat plate (1-2). The general construction transport vehicle transports the welded rail container (7-1) to the welding position of the steel rail along the subway main track (6-2), brakes and stops the vehicle stably, removes the fasteners near the steel rail joint, derusts and polishes the end surface and the welding area of the steel rail joint, and adjusts the level and the direction of the steel rail joint by using the support pad. After the position of the steel rail joint is adjusted, the hydraulic support legs (5-5) are controlled to adjust the height of the carrying flat plate (1-2), the carrying flat plate (1-2) is separated from the rear wheel set (1-3), the carrying flat plate is jacked to the height of rail welding operation, the rail welding machine (7-3) is adjusted to the position of the steel rail welding by the hydraulic telescopic arms (7-2) in the rail welding container (7-1), and the welding of the steel rail joint is completed according to a rail welding operation program. After the steel rail structure is welded, a rail welding machine (7-3) is retracted into a rail welding container (7-1), the hydraulic support legs (5-5) are controlled to shrink, the tail part of a carrying flat plate (1-2) is placed back onto a rear wheel set (1-3), the hydraulic support legs (5-5) are shrunk to be suspended, a power traction vehicle head (1-1) is started, a whole vehicle is moved to the next rail welding operation position, a layer of steel plate is padded at the welding seam of the steel rail during moving, the rubber wheels are prevented from being scalded, and the steel plate is removed after the whole vehicle passes through;
b-2, when the general construction transport vehicle carries out concrete transportation operation on the subway main track (6-2), the general construction transport vehicle runs to the position right below the feed opening, the base gantry crane (6-1) hoists the concrete mixing tank (8-1) to the carrying flat plate (1-2), and the installation stability of the concrete mixing tank (8-1) is ensured through a support of the concrete mixing tank (8-1) and a U-shaped clamp (3-9) arranged on a main beam (3-1) of the carrying flat plate (1-2). The general construction transport vehicle transports the concrete mixing tank (8-1) to the operation position of the concrete pump (11-1) along the subway front track (6-2), brakes and stops the vehicle stably, the discharge opening of the concrete mixing tank (8-1) is aligned with the feed opening of the concrete pump (11-1), and the height of the tail end of the carrying flat plate (1-2) is lifted up through the hydraulic support legs (5-5), so that the carrying flat plate (1-2) is separated from the rear wheel set (1-3). And adjusting the relative position between the discharge opening of the concrete mixing tank (8-1) and the feed opening of the concrete pump (11-1), and controlling the rotation of the mixing drum to discharge and dump the concrete until the concrete in the mixing drum is dumped. After the concrete is poured, controlling the hydraulic support legs (5-5) to shrink, placing the carrying flat plate (1-2) back onto the rear wheel set (1-3), shrinking the hydraulic support legs (5-5) to be in a suspended state, starting the power traction vehicle head (1-1), returning the whole vehicle to the position of a feed opening, reloading the concrete stirring tank (8-1) with concrete, and repeating the transportation work of the concrete;
b-3, when the general construction transport vehicle carries out the normalizing operation of the steel rail joint on the subway main track (6-2), two sets of electromagnetic induction normalizing electric boxes (9-1), a water chiller (9-2), a profiling bracket (9-3) and an auxiliary machine tool are arranged and fixed on a carrying flat plate (1-2), the steel rail welding joints on the left and right sides of the main track (6-2) can carry out the normalizing heat treatment at the same time, a power traction locomotive (1-1) is started, the whole vehicle is moved to the welding line of the steel rail, a steel rail clamping device is used for clamping the steel rail, the steel rail is lifted to the horizontal state, the profiling bracket (9-3) is installed, the electromagnetic induction normalizing electric boxes (9-1) are operated to carry out the high-frequency electromagnetic normalizing operation, the profiling bracket (9-3) is removed after the normalizing operation is finished, placing and installing a steel rail, starting a power traction vehicle head (1-1) and running to the position of the next operation point;
b-4, when the general construction transport vehicle drags the track laying machine (10-1) on the subway main line track (6-2), hoisting the track laying machine (10-1) with the contracted support legs onto the subway main line track (6-2), combining a traction structure (2-9) welded on a rear wheel set (1-3) with a dragging traction structure on the support legs of the track laying machine (10-1) by the general construction transport vehicle, starting a power traction locomotive (1-1), and dragging the track laying machine (10-1) to a track laying operation position;
b-5, when the general construction transport vehicle tows the concrete pump (11-1) on the subway main track (6-2), combining a traction structure (2-9) welded on a rear wheel set (1-3) with a towing traction structure on the concrete pump (11-1) by the general construction transport vehicle, starting a power traction vehicle head (1-1), and towing the concrete pump (11-1) to a concrete pouring operation position;
and B-6, when the general construction transport vehicle transports materials on the subway main track (6-2), the base gantry crane (6-1) hoists the materials such as the steel bars (12-1), the sleepers (12-2), the track adjusting supports (12-3), the supporting screw rods (12-4), the ditch templates (12-5) and the like to a carrying flat plate (1-2) of the general construction transport vehicle at a feed opening, the power traction vehicle head (1-1) is started, and the materials are transported to an operation point for unloading. When the universal construction transport vehicle carries other equipment, the traction structure (2-9) arranged on the tail of the whole vehicle can be used for dragging the material transport plate vehicle, so that the material transport operation is considered;
b-7, when the universal construction transport vehicle needs to be hoisted to the ground on the subway main track (6-2), two base earthworm gantry cranes (6-1) can be selected to simultaneously and integrally hoist the whole universal construction transport vehicle, the lifting tools and the steel wire ropes of the two gantry cranes respectively pass through the lifting lug structures arranged on the power traction vehicle head (1-1) and the rear wheel set (1-3), and simultaneously, the contraction operation is carried out, so that the whole universal construction transport vehicle is hoisted to the ground from the subway main track;
and B-8, when the universal construction transport vehicle is used for transition transportation, the whole machine is hoisted to a long-distance freight transport trailer (14-2) by using a base gantry crane (6-1) or a truck crane (14-1), and the long-distance freight transport vehicle can be transported to the next working site after being bound and fixed.
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| CN113200064A (en) * | 2021-05-08 | 2021-08-03 | 合肥神马科技集团有限公司 | Pull type driving rail car |
| CN113346412A (en) * | 2021-04-28 | 2021-09-03 | 甘肃路桥建设集团有限公司 | Highway tunnel hogging moment truss cable trench template tractor and manufacturing method thereof |
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| CN113346412A (en) * | 2021-04-28 | 2021-09-03 | 甘肃路桥建设集团有限公司 | Highway tunnel hogging moment truss cable trench template tractor and manufacturing method thereof |
| CN113200064A (en) * | 2021-05-08 | 2021-08-03 | 合肥神马科技集团有限公司 | Pull type driving rail car |
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