WO2021051786A1

WO2021051786A1 - Bidirectional driving traction and cargo-carrying transport vehicle for use on both highway and railway

Info

Publication number: WO2021051786A1
Application number: PCT/CN2020/083795
Authority: WO
Inventors: 赵文君; 段德荣; 徐明发; 闫进虎; 刘元胜
Original assignee: 中铁上海工程局集团有限公司; 中铁上海工程局集团华海工程有限公司
Priority date: 2019-09-20
Filing date: 2020-04-08
Publication date: 2021-03-25
Also published as: DE202020102895U1; CN211032067U

Abstract

Disclosed is a bidirectional driving traction and cargo-carrying transport vehicle for use on both a highway and a railway, the vehicle comprising a vehicle frame (16), wherein a front cab (13) is arranged on a lower side of a front end of the vehicle frame (16); a rear cab (2) is arranged on a lower side of a rear end of the vehicle frame (16); vertically-arranged tooth rows (24) are respectively arranged on the sides of the front cab (13) and the rear cab (2) that face each other; lifting driving mechanisms and lifting driving gears (33) driven by the lifting driving mechanisms are arranged at the bottom of the vehicle frame (16); the lifting driving gears (33) are meshed with the tooth rows (24); a steering axle (11) and a drive axle (19) are symmetrically arranged at the bottom of the frame in a front and a rear direction; steering supporting wheels are arranged at two ends of the steering axle (11); drive supporting wheels (20) are arranged at two ends of the drive axle (19); the drive supporting wheels (20) are connected to a driving device arranged at the bottom of the vehicle frame; guide wheel sets (15, 21) are further respectively arranged at the bottom of the vehicle frame (16) behind the drive supporting wheels (20) and in front of the steering supporting wheels; and the guide wheel sets are connected to the lifting device to realize the lifting of the guide wheel sets. In the bidirectional driving traction and cargo-carrying transport vehicle for use on both a highway and a railway, the use of a flat car or a rail car is reduced, and the construction cost is also reduced.

Description

Road-rail dual-purpose two-way traveling traction and cargo transport vehicle

Technical field

The utility model relates to the technical field of track engineering, in particular to a road-rail dual-purpose two-way traveling traction and cargo transport vehicle.

Background technique

At present, in the track construction of urban rail transit projects in my country, the way of transporting track materials from the track laying base to the work surface is realized by the track-type traction locomotive hauling the track transportation flat car. Due to the relatively large size of the rail-type traction locomotive (length 10000mm, width 2600mm, height 3800mm), when the rail material is transported to the working surface, the push method is used for transportation (that is, the flatbed truck is in the front, and the traction locomotive is walking forward in the back. The transportation of materials is directional), and the observation of the driver driving the tractor is affected to a certain extent, and the loading, unloading and transportation of materials are subject to certain restrictions. Especially when pushing long objects such as transportation rails (length 25000mm, width 2100mm) and other long objects, the length of the vehicle reaches 30m-40m, and the driver cannot observe the traffic conditions of the road ahead well, which poses certain safety hazards. In addition, because the weight of the rail traction locomotive is restricted by the structure of the urban rail transit section and other restrictions on the axle load, it is generally about 25000kg. The driving force is formed by the friction between the steel wheel and the rail. When driving on the wet track section of the big ramp When the friction force between the steel wheel and the steel rail is reduced, the driving wheel of the rail tractor is idling (slipping), and the driving wheel cannot be driven normally or slipping occurs, which poses a major safety hazard. Furthermore, due to the relatively high height of the track tractor, the track laying machine (length 4000mm, width 4000mm, clear height 3500mm) for track laying cannot cross over the track tractor to perform other operations (such as hoisting and reversing the template) when operating on the working surface. , Concrete pump pipes, etc.), which imposes certain restrictions on the use of the track laying machine and cannot perform its maximum function well. In addition, because the rail tractor adopts a rail-mounted steel wheel structure, it can only travel on a track with a fixed gauge, which cannot be achieved for the transportation of rail materials (track plates, sleepers, and fasteners) on a flat structural floor. Furthermore, the short-distance transfer of the same construction site must be carried out with the help of automobile flatbed trucks.

To sum up, although the existing rail-type rail transport tractors are widely used in practical applications, they restrict the work efficiency of rail construction and increase the construction cost to a certain extent. There are certain safety risks and impacts on the construction when driving. The play of ergonomics. There are also super-high situations during long-distance highway transfers. With the rapid development of modern rail transit engineering construction technology today, slab track beds, prefabricated assembly structures and other structures will become the mainstream form of track structures. In order to meet the higher requirements for the efficiency of track laying construction, the adaptability, multi-function and flexibility of the transport vehicle equipment have higher requirements. It has become an inevitable trend to provide larger working space and effective working time for the main track laying. Therefore, the development of a new type of road-rail dual-purpose two-way traction and cargo transport vehicle can not only realize the transportation of rail materials, pre-products, assembled structures and other materials in the tunnel, but also transport rail plates, fasteners and other materials on the road. . At the same time, the energy-saving and environmentally-friendly road-rail dual-purpose two-way traction and cargo transport vehicle that can meet the needs of the whole machine to avoid disassembly and rapid transfer and realize long-distance transportation transfer has become an inevitable trend and urgent matter.

Utility model content

The purpose of the utility model is to solve the shortcomings of the prior art and provide a road-rail dual-purpose two-way traction and cargo transport vehicle, which is both a tractor and a flatbed transport vehicle, which helps to improve the work efficiency of track construction.

In order to achieve the above objectives, a road-rail dual-purpose two-way traction and cargo transport vehicle is designed, including a frame, the front end of the frame is provided with a front cab, and the rear end of the frame is underside There is a rear cab. The front cab and the rear cab are respectively provided with vertically arranged tooth rows on the adjacent side. The bottom of the frame is provided with a lifting drive mechanism and a lifting drive driven by the lifting drive mechanism. Drive gear, the lifting drive gear meshes with the gear row; a steering axle and a drive axle are symmetrically arranged at the bottom of the frame, and both ends of the steering axle are equipped with steering support wheels, and both ends of the drive axle It is provided with a driving roller, and the driving roller is connected with a driving device arranged at the bottom of the frame, and the bottom of the frame is also provided on the rear side of the driving roller and the front side of the steering roller There is a pair of guide wheels, and the pair of guide wheels is connected with the lifting device to realize the lifting of the pair of guide wheels.

The lifting drive mechanism includes a lifting drive motor, a chain, a lifting drive shaft, and two bearing seats. The lifting drive motor and the bearing seat are fixed at the bottom of the frame. A lifting drive shaft is connected between the two bearing seats. The transmission shaft and the lifting drive motor are connected by a chain to realize synchronous movement. The lifting drive shaft is provided with the lifting drive gear, and the lifting drive gear can rotate synchronously with the lifting drive shaft.

The driving device includes a driving motor, a gearbox, and a reversing box. One side of the gearbox is connected to the driving motor, and the other side of the gearbox is connected to the reversing box through a transmission shaft, and the reversing box is connected through another transmission. The shaft is connected to the gearbox of the drive axle.

The driving roller and the steering roller adopt rubber pneumatic tires, and the guide wheel pair is a railway wheel pair made of rigid materials.

The lifting device includes a guide wheel fixed support rod connected to the bottom of the frame, a lifting device hydraulic cylinder connected to the bottom of the frame, and a guide wheel lifting device swing arm assembly. The guide wheel pair consists of a horizontal axis and a horizontal axis. The two ends are provided with guide wheels, the horizontal axis is rotatably connected to one end of the guide wheel lifting device swing arm assembly, the other end of the guide wheel lifting device swing arm assembly is connected with the lifting device hydraulic cylinder, and the guide wheel lifting device swing arm The middle part of the assembly is connected with the guide wheel fixed support rod.

The transport vehicle further includes an airbag compensator, the airbag compensator includes an airbag, and the airbag is arranged between the hydraulic cylinder of the lifting device and the other end of the swing arm assembly of the lifting device.

The airbag compensator also includes an air pump, which is connected to the airbag to inflate and deflate the airbag.

The bottom of the frame is also provided with a battery pack and an inverter for supplying power to the transport vehicle.

The front and rear ends of the transport vehicle are also provided with hooks for connecting with the flatbed vehicle.

The said transport vehicle is also provided with a hoisting point for hoisting.

The utility model itself is both a tractor and a flatbed transporter, which completely changes the way that the current track construction must use a special track tractor to pull the track flatbed transporter to transport track materials, improves the work efficiency of the track construction, reduces the construction investment and construction cost, and reduces the operation Compared with the prior art, the advantages of light labor of personnel and reduction of potential safety hazards in track construction are as follows:

1. It adopts the combined structure of driving and traveling-cargo loading, which realizes its own cargo transportation, reduces the use of flatbed trucks or rail cars, and reduces construction costs.

2. Preferably, it can be driven by electric power, which reduces air pollution, saves energy, and the total volume of the vehicle is light, and the environmental protection advantage is more prominent.

3. It is preferable to use rubber wheels as the driving wheels, the friction between rubber and steel is greater, and the large ramp is more practical, the wet state is, and the driving is safer and more reliable.

4. It adopts a dual-purpose structure of road and rail, which can drive on steel rails and concrete roads, and has a wider range of applications.

5. The ultra-low structure is adopted, and it is more convenient to be used as a long rail transportation train after being linked with ordinary flatbed cars. Because the train power is distributed and arranged, the traction is greater, which is more conducive to the transportation on large slopes.

Description of the drawings

Figure 1 is a front view of a road-rail dual-purpose two-way driving traction and cargo transport vehicle;

Figure 2 is a side view of a road-rail dual-purpose traction and cargo transport vehicle;

Figure 3 is a top view of a road-rail dual-purpose traction and cargo transport vehicle;

Figure 4a is a top view of the frame of a road-rail dual-purpose traction and cargo transport vehicle;

Figure 4b is a front view of the frame of a road-rail dual-purpose traction and cargo transport vehicle;

Figure 4c is a side view of the frame of a road-rail dual-purpose traction and cargo transport vehicle;

Figure 5a is a side view of the drive axle and drive support wheels of a road-rail dual-purpose two-way traction and cargo transport vehicle;

Figure 5b is a top view of the drive axle and drive support wheels of a road-rail dual-purpose traction and cargo transport vehicle;

Figure 5c is a front view of the drive axle and drive support wheels of a road-rail dual-purpose traction and cargo transport vehicle;

Figure 6a is a side view of the steering axle and steering support wheels of a road-rail dual-purpose traction and cargo transport vehicle;

Figure 6b is a top view of the steering axle and steering support wheels of a road-rail dual-purpose traction and cargo transport vehicle;

Figure 6c is a front view of the steering axle and steering support wheels of a road-rail dual-purpose two-way traction and cargo transport vehicle;

Figure 7a is a side view of the swing arm assembly, the horizontal shaft and the guide wheels of the road-rail dual-purpose two-way traction and cargo transport vehicle;

Figure 7b is a top view of the swing arm assembly, the horizontal shaft and the guide wheel pair of the road-rail dual-purpose two-way traction and cargo transport vehicle;

Figure 7c is a front view of the swing arm assembly, the horizontal shaft and the guide wheels of the road-rail dual-purpose two-way traction and cargo transport vehicle;

Figure 8a is a schematic diagram of the cab of a road-rail dual-purpose traction and cargo transport vehicle;

Figure 8b is a view from the A-A direction of Figure 8a;

Figure 9a is a schematic diagram of the cab door of a road-rail dual-purpose traction and cargo transport vehicle;

Figure 9b is a side view of Figure 9a;

Figure 10 is a schematic diagram of the lifting and lowering of the road-rail dual-purpose two-way driving traction and cargo transport vehicle;

Figure 11a is a side view of the lifting drive mechanism of the road-rail dual-purpose two-way traction and cargo transport vehicle;

Figure 11b is a top view of the lifting drive mechanism of the road-rail dual-purpose two-way traveling traction and cargo transport vehicle;

Figure 12 is a schematic diagram of the power transmission of a road-rail dual-purpose two-way driving traction and cargo transport vehicle;

Figure 13 is a schematic diagram of the brake and parking brake of a dual-purpose road-rail two-way traction and freight transport vehicle;

Figure 14 is a schematic diagram of the hydraulic system of the guide wheel lifting and lowering of the road-rail dual-purpose two-way traction and cargo transport vehicle;

Figure 15 is a schematic diagram of the lifting operation of the cab of a road-rail dual-purpose two-way traction and cargo transport vehicle;

Figure 16 is a schematic diagram of road driving of a road-rail dual-purpose two-way driving traction and cargo transport vehicle;

Figure 17 is a schematic diagram of the operation of the road-rail dual-purpose two-way driving traction and the transportation of the track slab of the cargo carrier;

Figure 18 is a schematic diagram of the operation of road-rail dual-purpose two-way driving and unloading track slabs of cargo transport vehicles;

Figure 19 is a schematic diagram of the operation of the dual-purpose two-way driving traction of road and rail and the continuous hanging transportation rail row of the cargo transport vehicle;

Figure 20 is a schematic diagram of the operation of road-rail dual-purpose two-way driving traction and unloading of the rail row of the cargo transport vehicle;

Figure 21 is a schematic diagram of the special operation of the new track laying machine for road-rail dual-purpose two-way driving and cargo transport vehicle transportation;

Figure 22a is a schematic diagram of road-rail dual-purpose two-way driving traction and long-distance transfer loading of a cargo transporter;

Figure 22b is a side view of Figure 22a;

Figure 23 is a schematic diagram of the operation of a gantry crane hoisting a road-rail dual-purpose two-way traction and cargo transporter;

Figure 24 is a schematic diagram of the operation of a truck crane hoisting a road-rail dual-purpose two-way traction and cargo transporter.

Figure 25 is a schematic diagram of the operation when the road-rail dual-purpose two-way driving traction and the cargo transporter push the flatbed car back;

Figure 26 is a schematic diagram of the loading preparation when the road-rail dual-purpose two-way driving traction and the cargo transporter are loaded and the track-laying machine is transferred;

Figure 27 is a partial schematic diagram of the long rail train transporting the long rail by the road-rail dual-purpose two-way traction and freight transport vehicle;

Figure 28 is a partial schematic diagram of the road-rail dual-purpose two-way driving traction and the long-rail train of the freight transport vehicle returning without load.

As shown in the figure, in the figure: 1. Rear coupler 2. Rear cab 3. Guide wheel fixed support rod 4. Rear lifting point 5. Traveling drive differential gear box 6. Transmission shaft 7. Transmission assembly 8. Battery pack box 9. Steering axle suspension support assembly 10. Front suspension point 11. Steering axle steering mechanism assembly 12. Guide wheel airbag shock absorber assembly 13. Front cab 14. Front hook 15. Front guide wheel pair 16. Vehicle Frame structure components 17. Electrical components integrated control box 18. Drive motor 19. Drive axle assembly 20. Drive roller 21. Rear guide wheel pair 22. Guide wheel lifting device swing arm assembly 23. Guide wheel lifting device hydraulic cylinder 24. Tooth row 25. Cab lifting guide column 26. Cab lifting device positioning slide assembly 26-1. Cab lifting device positioning slide (moving section) 26-2. Cab lifting device positioning slide (fixed section) ) 27. Lifting drive motor 28. Steering tie rod 29. Guide wheel lifting hydraulic pump and fuel tank assembly 30. Brake cylinder assembly 31. Bearing seat 32. Sprocket 33. Lifting drive gear 34. Power flatbed truck driving obstacle Component 35. Parking brake sub-cylinder assembly 36. Power switch 37. Baffle 38. Long rail 39. Cantilever crane 40. Support pad and lateral limit device No. 41.1 transport vehicle.

detailed description

The following is a further description of the present utility model in conjunction with the accompanying drawings. The structure and principle of this device are very clear to those in the field. It should be understood that the specific embodiments described here are only used to explain the present utility model, and are not used to limit the present utility model.

Refer to Figures 1-3. This embodiment provides a road-rail dual-purpose traction and cargo transport vehicle, which is mainly composed of a frame, a road-rail dual-purpose walking system, a lifting rail wheel guided walking system, and a battery pack and The inverter is composed of several parts. Place the cab under the frame to realize lifting driving as required. The height of the slab of the vehicle loaded with goods is less than 1.3 meters, which meets the general truck loading requirements. Since the cargo is a deck-type structure with large space and no shelter, it is conducive to the construction and transportation of large and ultra-wide materials. At the same time, it takes into account the two modes of track driving and road driving. The track can be walked on the track in the track, and the track can be walked on the flat structural floor or flat cushion. And the car adopts two-way driving mode, which can meet the requirements of material transportation in the environment of narrow tunnel space. The vehicle is reserved for a centralized control walking signal connection interface, which can realize the connection of multiple powered flat cars and ordinary flat cars to form a long rail train EMU, which can transport, for example, long rails of more than 100 meters and meet the tasks of unloading and recycling. Claim.

Referring to Figures 4a-4c, in this embodiment, the frame of the road-rail dual-purpose two-way traction and cargo transport vehicle is welded with I-shaped steel, and the frame is 2.4 meters wide and long. 11.5 meters. The frame is not only the installation platform for the road-rail dual-purpose walking system, the elevating track wheel guided walking system, the power system such as battery packs and inverters, and other operating systems, control systems, etc., it is also a cargo carrying platform. Therefore, the frame should have certain strength, rigidity and toughness. The road-rail dual-purpose walking system, the lifting track wheel guided walking system, the battery pack and the inverter are all installed in the lower part or inside of the frame, and the upper part of the frame is the carrying position of the goods. And the frame adopts a fully symmetrical design, and the front and rear cabs are installed under the front and rear ends of the frame respectively, and the cab is a sinking arrangement. In addition, the front and rear ends of the frame of the transport vehicle are also provided with hooks for connecting with the flatbed vehicle, and the frame is also provided with lifting points for hoisting.

And, referring to Figures 8a-8b in conjunction with Figures 9a, 9b and 10, the front cab and the rear cab are respectively provided with vertically arranged tooth rows on the adjacent side, and the bottom of the frame A lifting drive mechanism and a lifting drive gear driven by the lifting drive mechanism are provided, and the lifting drive gear meshes with the gear row to realize the lifting of the front cab and the rear cab. For example, in one embodiment, referring to Figures 11a and 11b in conjunction with Figure 14, the lifting drive mechanism includes a lifting drive motor, a chain, a lifting drive shaft and two bearing seats, the lifting drive motor and the bearing seat Fixed at the bottom of the frame, a lifting transmission shaft is connected between the two bearing seats, the lifting transmission shaft is connected with the lifting drive motor through a chain to achieve synchronous movement, and the lifting transmission shaft is provided with the Lifting driving gear, the lifting driving gear can rotate synchronously with the lifting transmission shaft. In addition, the front cab and the rear cab are respectively provided with vertical cab lifting guide posts fixed on the lower side of the frame at the opposite side positions, and correspondingly set on the front cab and the rear cab. There is a through hole matched with the lifting guide column to ensure the accuracy of the lifting direction. In addition, the position of the front cab and the rear cab can also be provided with a positioning slider assembly for the cab lifting device, and the positioning slider assembly for the cab lifting device includes mutually cooperating positioning sliders for the cab lifting device. (Movable end) and the positioning slider (fixed end) of the cab lifting device. On the side of the cab is the positioning slider (moving end) of the cab lifting device, which can be moved, and the positioning slider of the cab lifting device on the other side ( The fixed end) is fixed to the frame, and can also be used to ensure the accuracy of the lifting direction of the cab.

The road-rail dual-purpose walking system includes a steering bridge and a drive axle symmetrically arranged at the bottom of the frame. In conjunction with Figures 5a-5c, steering rollers are provided at both ends of the steering bridge, and the steering bridge passes The rigid suspension is installed on the frame, and the steering axle bridge of off-road vehicles can be used. With reference to Figures 6a-6c, both ends of the drive axle are provided with drive support wheels, and the drive axle can be the drive axle of a truck, and the drive axle and the frame are rigidly connected. The driving roller and the steering roller adopt rubber pneumatic tires, and as shown in FIG. 12, the driving roller is connected to a driving device provided at the bottom of the frame. In another embodiment, The drive device includes a drive motor, a gearbox and a reversing box. One side of the gearbox is connected to the drive motor, and the other side of the gearbox is connected to the reversing box through a drive shaft, and the reversing box is connected to another drive shaft. Connected to the gearbox of the drive axle. The two-way driving of the vehicle can be realized by operating the reversing box, and the driving of the vehicle can be realized at different speeds by operating the gearbox.

In this embodiment, with reference to Figures 7a-7c, the lifting track wheel guide walking system includes a pair of guide wheels, and the bottom of the frame is also on the rear side of the driving roller and the front side of the steering roller. The guide wheel pairs are respectively provided, and the guide wheel pairs are connected with the lifting device to realize the lifting of the guide wheel pairs, and the guide wheel pairs can be railway wheels made of rigid materials. The lifting device includes a guide wheel fixed support rod connected to the bottom of the frame, a lifting device hydraulic cylinder connected to the bottom of the frame, and a guide wheel lifting device swing arm assembly. The guide wheel pair consists of a horizontal axis and a horizontal axis. The two ends are provided with guide wheels, the horizontal axis is rotatably connected to one end of the guide wheel lifting device swing arm assembly, the other end of the guide wheel lifting device swing arm assembly is connected with the lifting device hydraulic cylinder, and the guide wheel lifting device swing arm The middle part of the assembly is connected with the fixed support rod of the guide wheel, and the lifting of the guide wheel pair can be realized by swinging the swing arm through the action of the hydraulic cylinder of the lifting device. Preferably, the elevating track wheel guiding walking system further includes an airbag compensator. The airbag compensator includes an airbag and an air pump. The air pump is connected to the airbag to inflate and deflate the airbag. Between the hydraulic cylinder of the lifting device and the other end of the swing arm assembly of the lifting device,

When driving on the highway, raise the guide wheel pair, and the transporter can drive on the highway. When the guide wheel pair is lowered, the radial center of the driving roller and steering roller tread overlaps with the rail tread center, the driving roller and steering roller are supported on the rail tread, and the guide wheel pair is supported on the rail. Tread. Lock the steering lock of the steering bridge, and the vehicle will drive along the rails under the guidance of the guide wheels to complete the material transportation.

In addition, the vehicle uses a battery pack power source as a power source, and the battery uses a lithium battery with a large capacity. The inverter is used to convert the input and output of the battery's electric energy through frequency conversion and other methods to realize the power allocation of the vehicle. And the transport vehicle also includes general vehicle brakes and parking brakes. For example, Figure 13 shows a schematic diagram of a brake and parking brake circuit. The air storage tank is charged and discharged through a wind pump to change the air storage. The pressure applied by the tank to the parking brake cylinder and the brake cylinder can push the brake pads to make the brake pads rub against the brake drum, so as to reduce the speed of the vehicle or keep the vehicle stationary. There is also a vehicle in the transport vehicle. The operation control system, the operating system is installed in the cab on the front and rear sides of the vehicle. The operating system includes a steering wheel, a variable box operating lever, a reversing box operating button, as well as a motor, an inverter operating button, a brake and parking controller, etc. The front and rear ends of the transport vehicle are also provided with a platform for connecting with the flatbed vehicle. A hook is also provided with a lifting point for hoisting.

Example 1: Road-rail dual-purpose two-way traveling traction and cargo transport vehicle track in place traveling and carrying track materials

Two gantry cranes at the track-laying base are used to slowly hoist the road-rail dual-purpose two-way traction and cargo transporter and drop it onto the formed track under the discharge opening. The driving roller and the steering roller are collectively called rubber running wheels. , Align the tread center of the rubber walking wheel with the center of the rail, and operate the hydraulic system of the power flatbed car, so that the rigid guide wheel pair slowly descends on the rail tread under the action of the lifting hydraulic cylinder, so that the rigid guide wheel tread is completely in line with the rail The treads of the rail heads are the same. Remove the hoisting ring and wire rope of the powered flatbed truck. Complete the track walking and positioning work of the powered flatbed truck.

Load the rail materials (rebars, templates, etc.) on the cargo slab of the road-rail dual-purpose two-way traction and cargo transporter, that is, the steel plate laid on the frame, and tie it with ropes to make it firm. The operator enters the cab, turns on the power of the vehicle, starts the air compressor to inflate the brake air tank, when the air pressure reaches the rated value. Operate the steering wheel lock switch to lock the direction so that the steering wheel cannot be deflected. Operate the airbag damping device control valve to inflate the airbag, operate the walking direction selector switch to make the vehicle in the forward direction, operate the vehicle speed selector switch to select the starting gear, operate the parking brake switch to release the parking brake, and operate the acceleration control valve to enable The vehicle starts to move. During driving, adjust the speed according to the road conditions to make the vehicle safely reach the designated position on the working surface to park. The above-mentioned walking operation control button returns to the original position, and the parking brake is controlled to stop the vehicle safely at the designated position. The on-site track laying unit is used to lift the track material to the designed installation location to complete the transportation operation. As shown in Figure 17, Figure 18.

When the vehicle returns to the base, the driver enters the cab in the return direction and repeats the above actions to return the vehicle to the base position and continue the operation.

Example 2: Road-rail dual-purpose two-way driving traction and cargo transport vehicles connected to ordinary flatbed trucks or two road-rail dual-purpose two-way driving and cargo transport vehicles connected to carry out rail platoon long material transportation

When it is necessary to transport long and large rail materials such as rail rows (25m*2.1m*0.4m), proceed as follows: connect the road-rail dual-purpose two-way traction and cargo transporter with a flatbed truck of the same height ( The road-rail dual-purpose two-way traction and cargo transport vehicle is the first vehicle in the forward direction), or two road-rail dual-purpose two-way traction and cargo transport vehicles are linked together for braking and acceleration control linkage. At this time, the length of the cargo vehicle is 25m, which meets the requirements of transporting rail materials. Place the two bogies required for the transportation of large cargoes in the appropriate positions of the two trains and fix them.

As shown in Figure 19, the rail row is hoisted and placed on the pallet of the rail row transport vehicle bogie for fixing. The operator enters the cab, turns on the power of the vehicle, starts the air compressor to inflate the brake air tank, when the air pressure reaches the rated value. Operate the steering wheel lock switch to lock the direction so that the steering wheel cannot be deflected. Operate the airbag damping device control valve to inflate the airbag, operate the walking direction selector switch to make the vehicle in the forward direction, operate the vehicle speed selector switch to select the starting gear, operate the parking brake switch to release the parking brake, and operate the acceleration control valve to enable The vehicle starts to move. During driving, adjust the speed according to the road conditions to make the vehicle stop at the designated position after safely reaching the working surface. The above-mentioned walking operation switch returns to the original position, and the parking brake control valve is controlled to safely stop the vehicle at the designated position. Use the on-site track laying unit Lift the rail row and transport it to the designed installation location to complete the transportation operation.

When the vehicle returns to the base, the driver enters the driver's cab in the direction of return, such as an ordinary flatbed vehicle. In order to ensure that the driver's line of sight is not affected and the line of sight is good, the driver's cab can be raised at this time. The operation actions are as follows: turn on the main power switch of the vehicle, operate the cab lift control button to slowly raise the cab upwards, and stop the lift when it reaches a certain height, as shown in Figure 15 and Figure 16, repeat the above walking actions. Switches and buttons make the vehicle return to the base position and continue to work again, as shown in Figure 25.

Example 3: Road-rail dual-purpose two-way traction and cargo transport vehicles travel on the flat structural floor or cushion plane to transport materials such as track slabs

When it is necessary to travel and transport track slabs or other materials on a flat structural bottom plate or concrete road mattress layer, follow the steps below: hoist the road-rail dual-purpose two-way traction and cargo transporter on the structural bottom plate or concrete cushion layer on. Turn on the main power switch of the road-rail dual-purpose two-way driving traction and cargo transport vehicle. Operate the start air compressor switch to make the air compressor work to inflate the brake air tank, when the air pressure reaches the rated value. Start the rigid guide wheel hydraulic system to make it work, operate the rigid guide wheel lift control valve, so that the rigid guide wheel slowly rises to the highest position to stop. Operate the steering wheel lock switch to release the direction lock device, so that the steering wheel meets the working requirements. Operate the airbag shock absorber control valve to stop the airbag inflation. Load the materials to be transported on a powered flatbed truck and bind them to make them firm and reliable.

Operate the walking direction selector switch to make the vehicle in the forward direction, operate the vehicle speed selector switch to select the starting gear, operate the parking brake switch to release the parking brake, and operate the acceleration control valve to make the vehicle start moving smoothly. Adjust the speed according to the road conditions during driving. Make the vehicle stop at the designated position after reaching the working surface safely, return the above-mentioned walking operation switches and buttons to the original position, operate the parking brake control valve to stop the vehicle safely at the designated position, and use the on-site track laying unit to lift the rails to the designated position. Design the installation location and complete the transportation operation, as shown in Figure 17 and Figure 18.

When the road and rail dual-purpose two-way traction and the cargo transporter return to the loading point, the driver enters the cab in the returning direction, and repeats the above-mentioned walking operation buttons and actions to return the power flatbed to the loading point position and continue to work again .

Example 4: Two road-rail dual-purpose two-way driving traction and cargo transport vehicles synchronously transport the track laying unit

When the track-laying unit needs to be transferred to another work surface to continue the track-laying operation after the construction of the section track is completed, the road-rail dual-purpose two-way traction and cargo transport vehicle can be used for rapid special operation at this time. The specific operations are as follows:

1. Connect the two road-rail dual-purpose two-way driving and cargo transport vehicles and then drive to the track laying unit to park and stand by.

2. Operate the track laying unit to make it in the state of hoisting the rail row material (the walking wheel of the walking trolley is higher than the load position of the power flatbed by a certain height) and stop, as shown in Figure 26.

3. Drive two road-rail dual-purpose two-way traction and cargo transport vehicles respectively to park under the walking trolley of the track laying unit.

4. Operate the track laying unit to lower the front and rear traveling trolley to the load-bearing top surface of the power flatbed. Tuck the vertical support to the transfer position and lock it.

5. The front and rear walking trolleys of the track laying unit and the two road-rail dual-purpose two-way traction and cargo transport vehicles are respectively bound to make them firm and stable.

6. Remove the power supply cable of the track laying unit and retract it into the cable drum, as shown in Figure 27.

7. Check the lashing and firmness of the track-laying unit and the dual-use road-rail dual-purpose traction and the cargo carrier. After everything is correct, you can transfer.

8. Two drivers of road-rail dual-purpose two-way traction and cargo transport vehicles use walkie-talkies to communicate and coordinate.

9. Two operators enter their respective cabs, turn on the power of the vehicle, start the air compressor to inflate the brake air tank, when the air pressure reaches the rated value. Operate the steering wheel lock switch to lock the direction so that the steering wheel cannot be deflected. Operate the airbag damping device control valve to inflate the airbag, operate the walking direction selector switch to make the vehicle in the forward direction, operate the vehicle shift selector switch to select the starting gear, and operate the parking brake switch to release the parking brake. After the preparations are completed, Use the walkie-talkie to communicate and operate the acceleration control valve synchronously to make the vehicle start slowly. During the driving process, according to the road conditions, the speed will be adjusted after contact, so that the vehicle will stop at the designated location after reaching the working surface safely. The above-mentioned walking operation switch button returns to the original position, and the parking brake control valve is operated to safely stop the vehicle at the designated position to complete the transportation operation.

10. Release the binding and restraint between the track-laying unit and the dual-purpose two-way traction of road and rail and the cargo transporter, so that the track laying unit and the dual-purpose two-way traction of the road and rail and the cargo transporter are in a separate state. Pull out the power supply cable of the track laying unit from the cable reel, turn on the power supply of the track laying machine, operate the track laying unit to extend the vertical support of the walking trolley of the track laying unit downwards, and stably support it on the formed concrete monolithic track bed , Continue to operate to raise the walking trolley together with the hoisting beam, and stop the operation after the walking wheel of the walking trolley is higher than the power flatbed by a certain height.

11. Command the road-rail dual-purpose two-way traction and cargo transport vehicles to prepare for travel. After all preparations are completed, they will drive out of the track laying unit. Operate the vertical support of the walking trolley of the track laying unit to lower it, and finally park the track running wheel of the track laying unit on the main track smoothly. Complete the rapid transfer operation of the track laying unit.

Example 5: Road-rail dual-purpose two-way driving traction and cargo transport vehicles are connected with ordinary flatbed vehicles to form an EMU to transport long rails

The replacement of worn-out rails in the maintenance construction of the existing urban rail transit lines is the key construction content of the maintenance construction. In order to quickly replace the worn-out rails on existing lines, to reduce the operating time between sections, 100-meter-long rails are often used as the basic rails for operations. The transportation of 100-meter-long rails is the key link. The use of multiple road-rail dual-purpose two-way traction and cargo transport vehicles and ordinary flatbed vehicles for marshalling and connecting to form a long rail transportation EMU train can well solve the transportation problem of long rails. Proceed as follows:

1. The one-hundred-meter-long rail transport vehicle is composed of two-way road-rail dual-purpose traction and cargo transport vehicles and ordinary flatbed vehicles, that is, 3 road-rail dual-purpose two-way traction and cargo transport vehicles plus 6 ordinary flatbed vehicles. And 9 vehicles with a length of 12.5 meters.

2. According to the marshalling mode of a road-rail dual-purpose two-way traction and cargo transporter at the front, middle and rear, and 3 ordinary flatbed wagons in the middle, the marshalling mode (1+3+1+3+1).

3. Install a cantilever crane for hoisting long rails at a suitable position of each flat car, and connect the cantilever crane and the flat car firmly.

4. In the long rail storage yard, use the long rail loading and unloading group crane to load and unload the 100-meter long rails on both sides of the cantilever crane of the long rail transportation train, and install the anti-long rails at the appropriate positions of the power flat cars at both ends of the long rail transportation train. Serial moving limit baffle device. A limit device to prevent lateral movement of the rail is installed on each carriage.

5. The three road-rail dual-purpose two-way traction and cargo transport vehicles are operated by three drivers, operating the No. 1, No. 2 and No. 3 power flatbeds respectively. The intercom system is used to communicate and dispatch between drivers.

6. The commander shall be the driver of the first road-rail dual-purpose two-way traction and cargo transporter (Car No. 1) in the direction of travel, and uniformly dispatch the No. 2 and No. 3 road-rail dual-purpose traction and cargo transport vehicles. The drive control is shown in Figure 27 and Figure 28.

7. When the long-rail train is running, operate in accordance with the rules of the rail vehicle. Drive the vehicle to the designated unloading position according to the requirements specified in the driving command. After the train is stopped and braked, the commander (the driver of No. 1 train) informs the person in charge of long rail unloading personnel to prepare for unloading, and the person in charge of long rail unloading directs the operator to operate the cantilever crane on the long rail train and will be numbered The long rails are unloaded to both sides of the track bed according to the design requirements. After unloading the long rail at this position, the cantilever crane returns to the vehicle driving position and fixes it. The personnel evacuated to a safe area, and the long rail transport vehicle was instructed to stop and brake after driving to the next unloading position. The commander informs the person in charge of long rail unloading to prepare for unloading, and the person in charge of unloading directs the operator to operate the cantilever crane on the long rail train to unload the numbered long rails to both sides of the track bed according to the design requirements. This continues to circulate until all the long rails on the long rail train are unloaded.

8. After the long rails are unloaded, return all the cantilever cranes on the train to the driving position and fix them, and place the rail support pad limiting device safely. Personnel evacuated the long-track transport train.

9. When the train returns to the base, the vehicle driving commander shall be the driver of the No. 3 road-rail dual-purpose two-way driving and cargo transporter. The driver of No. 3 car lifts the vehicle cab from under the flatbed to the top of the flatbed to fix it. Use the walkie-talkie to communicate with the drivers of No. 2 and No. 1 to prepare for the direction of travel. After everything is confirmed, the driver of No. 3 will notify the drivers of No. 2 and No. 1 to operate synchronously and start the long-track transportation train to travel back to the base. Or the long rail storage yard, carry out the long rail transportation and unloading operation again, as shown in Figure 27 and Figure 28.

10. Repeat all the steps in 4, 5, 6, 7, 8, and 9 above until all the long rails are transported and unloaded to both sides of the track bed where the rails are replaced. Complete long rail transportation and rail unloading operations.

Example 6: Road-rail dual-purpose two-way driving traction and long-distance transportation of cargo transport vehicles.

When the road-rail dual-purpose two-way traction and cargo transporter completes the track construction of the project and needs to be transferred to another project for track construction, the transfer is carried out according to the following steps.

1. Park the road-rail dual-purpose two-way traction and cargo transporter on the main track below the rail unloading port of the track laying base, stop the brake, and turn off the main power supply of the vehicle. The two gantry cranes of the track laying base are respectively hung on the front and rear lifting points of the road-rail dual-purpose two-way traction and cargo transporter, and the gantry crane driver is instructed to lift synchronously, and the road-rail dual-purpose two-way traction and cargo transporter are lifted from The rail is hoisted to the ground of the track laying base, as shown in Figure 23. Or use a large-tonnage truck crane to hoist the road-rail dual-purpose two-way traction and cargo transporter from the track below the rail material discharge port to the ground of the track laying base, as shown in Figure 24

2. For long-distance transportation, a 15-meter-long semi-trailer truck is used for transportation.

3. Use two gantry cranes at the base to hoist the road-rail dual-purpose two-way traction and cargo transporter, load it on the semi-trailer flat car, and use the skid to support and fix the 4 walking wheels of the power flatbed. Or use a large-tonnage truck crane to hoist and load the road-rail dual-purpose two-way traction and cargo transporter onto the semi-trailer truck, and use the skids to support and fix the 4 running wheels of the power truck, as shown in Figure 22a and Shown in Figure 22b.

4. Because the road-rail dual-purpose two-way traction and cargo transporter is an ultra-low structure, one car semi-trailer flatbed transporter can transport two road-rail dual-purpose two-way traction and cargo transport vehicles at a time. Use two gantry cranes at the base to hoist the road-rail dual-purpose two-way traction and cargo transporter, and load it on the road-rail dual-purpose two-way traction and cargo transporter that has been loaded on the semi-trailer truck, and use skids. Support and fix the 4 walking wheels of the powered flatbed truck. Or use a large-tonnage truck crane to hoist and load the road-rail dual-purpose traction and cargo transporter onto the road-rail dual-purpose traction and cargo transporter that has been loaded on the semi-trailer truck, and use a skid to move The 4 walking wheels of the powered flatbed car are cushioned and fixed, as shown in Figure 22a and Figure 22b.

5. Use wire ropes, wire tensioners, etc. to plate and fix the power flatbed truck and the power flatbed truck, and the power flatbed truck and the automobile semi-trailer flatbed to make it firm and stable. Long-distance transportation can be carried out after everything is correct.

6. Command the truck semi-trailer to transport the road-rail dual-purpose two-way traction and cargo transporter to the new construction site and unload the truck. Complete long-distance transfer transportation.

Claims

A road-rail dual-purpose two-way traveling traction and cargo transport vehicle, which is characterized by comprising a frame, the front end of the frame is provided with a front cab, and the rear end of the frame is provided with a rear The driver’s cab, the front driver’s cab and the rear driver’s cab are respectively provided with vertically arranged tooth rows on the adjacent side, and the bottom of the frame is provided with a lifting drive mechanism and a lifting drive gear driven by the lifting drive mechanism, The lifting drive gear meshes with the gear row;

At the bottom of the frame, a steering bridge and a drive axle are symmetrically provided at the front and rear. Both ends of the steering bridge are provided with steering support wheels, and both ends of the drive bridge are provided with driving support wheels. The driving device at the bottom of the frame is connected, and the bottom of the frame is further provided with a pair of guide wheels on the rear side of the driving roller and the front side of the steering roller, and the pair of guide wheels is connected with the lifting device to realize the guidance. The lifting of the wheel set.
A road-rail dual-purpose two-way traction and cargo transport vehicle according to claim 1, wherein the lifting drive mechanism includes a lifting drive motor, a chain, a lifting drive shaft and two bearing seats. The lifting drive motor and the bearing seat are fixed at the bottom of the frame, a lifting drive shaft is connected between the two bearing seats, and the lifting drive shaft and the lifting drive motor are connected by a chain to realize synchronous movement. The lifting drive shaft The lifting driving gear is provided on the upper part, and the lifting driving gear can rotate synchronously with the lifting transmission shaft.
The road-rail dual-purpose two-way traction and cargo transport vehicle according to claim 1, wherein the driving device includes a driving motor, a gearbox and a reversing box, and one side of the gearbox is connected to the driving motor. Connected, the other side of the gearbox is connected with the reversing box through a transmission shaft, and the reversing box is connected with the gear box of the drive axle through another transmission shaft.
The road-rail dual-purpose two-way traction and cargo transport vehicle according to claim 1, wherein the driving roller and the steering roller adopt rubber pneumatic tires, and the guide wheel pair adopts rubber pneumatic tires. Railway wheelsets made of rigid materials.
A road-rail dual-purpose traction and cargo transport vehicle according to claim 1, wherein the lifting device comprises a guide wheel fixed support rod connected to the bottom of the frame, and a lifting device connected to the bottom of the frame. The device hydraulic oil cylinder and the guide wheel lifting device swing arm assembly, the guide wheel pair is composed of a horizontal shaft and the guide wheels provided at both ends of the horizontal shaft, and the horizontal shaft is rotatably connected to the guide wheel lifting device swing arm assembly At one end, the other end of the swing arm assembly of the guide wheel lifting device is connected with the hydraulic cylinder of the lifting device, and the middle part of the swing arm assembly of the guide wheel lifting device is connected with the fixed support rod of the guide wheel.
The road-rail dual-purpose two-way traction and cargo transport vehicle according to claim 5, further comprising an airbag compensator, the airbag compensator includes an airbag, and the airbag is arranged on the lift Between the hydraulic oil cylinder of the device and the other end of the swing arm assembly of the lifting device.
The road-rail dual-purpose traction and cargo transport vehicle according to claim 6, wherein the airbag compensator further comprises an air pump, and the air pump is connected with the airbag to realize the inflation and deflation of the airbag.
The road-rail dual-purpose two-way traction and cargo transport vehicle according to claim 1, wherein the bottom of the frame is further provided with a battery pack and an inverter for supplying power to the transport vehicle.
The road-rail dual-purpose traction and cargo transport vehicle according to claim 1, wherein the front and rear ends of the transport vehicle are also provided with hooks for connecting with the flatbed vehicle.
The road-rail dual-purpose two-way traveling traction and cargo transport vehicle according to claim 1, characterized in that the said transport vehicle is also provided with a hoisting point for hoisting.