CN113879350B - Male and rail intermodal transportation system and railway transportation vehicle - Google Patents

Abstract

The invention discloses a highway-railway intermodal system and a railway transportation vehicle, wherein the highway-railway intermodal system comprises a highway-railway conversion station, a boarding platform and the railway transportation vehicle, wherein the highway-railway conversion station is in butt joint with the end floor of the railway transportation vehicle through the boarding platform so as to enable goods to be transported between the highway-railway conversion station and the railway transportation vehicle; the railway transportation vehicle comprises a vehicle body component, and a lifting platform and a lifting driving device which are arranged on the vehicle body component, wherein the lifting platform is driven by the lifting driving device to switch between two positions of being lifted to be flush with the end floor and being lowered to the bottom of the vehicle body component. In the highway and railway intermodal system, railway transport vehicles are matched with related self-elevating platforms, so that rapid transportation of highway transport vehicles or various container transportation can be realized, construction and change of ground infrastructure are not needed, and rapid butt joint of cargo transportation between highway and railway vehicles can be realized only by matching with boarding platforms.

Description

Male and rail intermodal transportation system and railway transportation vehicle

Technical Field

The application belongs to the technical field of railway vehicles, and particularly relates to a highway-railway intermodal transportation system and a railway transportation vehicle.

Background

With the development of transportation capability, the demands of owners on timeliness of goods delivery are increasing, railways of various countries are continuously striving to increase the speed of goods delivery, strive to form the speed advantage of goods delivery, and gradually form door-to-door transportation represented by container transportation.

Because the starting is late, the development of the transportation logistics industry in China is lagged behind abroad, and the railway door-to-door transportation equipment is only transported by using railway containers. However, railway container transportation is always wander and dissociated between door-to-station and station-to-door transportation, and door-to-door transportation in the true sense is not realized. The condition makes railway freight in the current logistics age of high-speed development difficult to form a complete logistics chain, cannot form whole logistics service, severely restricts the exertion of railway transportation advantages, and causes obvious hysteresis of railway transportation in the development of modern logistics industry. Along with the development of national economy in China, the railway technology policy clearly proposes that various types of goods trains are put into operation, intermodal extension service is developed, and centralized transportation and door-to-door transportation are promoted.

At present, the main mode of realizing door-to-door transportation in China is public and railway combined transportation of containers, and the transportation process is as follows: firstly, the road automobiles transport the containers from the gathering and distributing place to the railway container gathering station, then the railway transport the containers to the container distribution station, and finally the road automobiles transport the containers to the collection station, wherein the road transport containers are generally transported by using road container semitrailers, and the railway transport containers are generally transported by using container flatcars or open cars. The common-rail combined transportation of the existing container requires the related hoisting equipment to be matched to complete the transfer of the container between the common-rail vehicles.

The common rail transportation modes at present are as follows:

piggyback transport: the concave underframe of the vehicle has a horizontal side shifting function, and the concave underframe moves out of the limit of the railway vehicle, so that the rapid butt joint of the cargo transportation between the railway vehicles is realized.

And (3) carrying a supporting plate: the vehicle is driven into the special supporting plate, the supporting plate for bearing the vehicle is arranged in the matched railway vehicle in a hoisting mode, the vehicle is hoisted out after reaching the destination, and the vehicle is driven away from the supporting plate by itself.

Road and railway dual-purpose vehicle: the device consists of a road container semitrailer, a one-position traction pillow assembly, a two-position traction pillow assembly, a wind hand braking device, a car coupler buffer device and a bogie; the two ends of the traction device are respectively connected with a traction device and a two-position traction device, the end part and the lower part of the traction device are respectively provided with a car coupler buffer device and a bogie, and a wind hand brake device is arranged on the traction device, so that railway transportation of the highway and railway dual-purpose car can be realized; when the container semitrailer is used for road transportation, the container semitrailer is separated from one traction pillow assembly and two-position traction pillow assembly, and is connected with a road tractor to form an automobile train, so that the road transportation is realized.

The common rail-road transportation mode at present has the following defects: the humpback transport vehicle is limited by a mechanism, has large dead weight, low reliability, poor maintainability and lower economic efficiency; the pallet transport vehicle needs a special hoisting tool matched with a station, the occupied area of the station is large, and the investment and maintenance cost of ground infrastructure is high; when the railway of the highway and railway dual-purpose vehicle is transferred to the highway for transportation, one-position traction sleeper assembly, two-position traction sleeper assembly and a bogie are required to be removed, so that the transfer time is prolonged, a special bogie storage place is required to be arranged at a railway station, and the number of railway stations capable of using the highway and railway for conversion is limited.

To sum up, the existing intermodal approach to intermodal transportation is time consuming to switch between rail and rail transportation and the "door-to-station, station-to-door" distance cannot be minimized. Thus, there is an urgent need to develop more convenient "door-to-door" transportation equipment that can participate in rail yards.

Disclosure of Invention

In order to solve the technical problems, the invention provides the highway-railway intermodal transportation system and the railway transport vehicle, so that the highway-railway intermodal transportation system can realize rapid transportation of highway transport vehicles and improve transportation efficiency. Meanwhile, various containers can be transported, and the container conversion transportation between highway and railway transportation can be realized rapidly.

The technical scheme adopted for achieving the purpose of the invention is that the combined rail transport system comprises a rail-rail conversion station, a boarding platform and a railway transport vehicle, wherein the rail-rail conversion station is in butt joint with the end floor of the railway transport vehicle through the boarding platform so as to enable goods to be transported between the rail-rail conversion station and the railway transport vehicle; the railway transportation vehicle comprises a vehicle body component, and a lifting platform and a lifting driving device which are arranged on the vehicle body component, wherein the lifting platform is driven by the lifting driving device to switch between two positions of being lifted to be flush with the end floor and being lowered to the bottom of the vehicle body component.

Optionally, the boarding platform is a movable boarding axle or a station cement boarding platform; the railway transportation vehicle and/or the boarding platform are/is provided with a cab apron, and the cab apron is used for butting the boarding platform with the end floor of the railway transportation vehicle.

Optionally, a power supply system for supplying power is arranged on the railway transportation vehicle, and the power supply system comprises a rechargeable battery; and a quick charging pile for charging the rechargeable battery is arranged in the public-railway converting station.

Based on the same inventive concept, the application also correspondingly provides a railway transportation vehicle applied to the highway-railway intermodal system, wherein the railway transportation vehicle comprises a vehicle body composition, a lifting platform and a lifting driving device; the vehicle body comprises a concave underframe and end underframes positioned at two ends of the concave underframe, side walls are arranged at two sides of the concave underframe, and the top end of the end underframe is provided with the end floor; the lifting platform is arranged in the concave underframe, the lifting driving device is arranged on the side wall of the concave underframe, and the lifting platform is driven by the lifting driving device to switch between two positions of being lifted to be flush with the end floor and being lowered to the bottom of the concave underframe.

Optionally, the lifting driving devices are provided with more than 2, and more than 2 lifting driving devices are distributed on the side wall of the concave underframe at intervals.

Optionally, the lifting driving devices are provided with an even number, and the even number of lifting driving devices are symmetrically distributed on the two side walls of the concave underframe.

Optionally, the lifting driving device comprises a power device, a chain wheel and a chain, wherein: the power device is a telescopic mechanism; the chain wheel is arranged on the side wall and used for supporting the chain; the chain is meshed with the chain wheel, one end of the chain is connected with the output end of the power device, and the other end of the chain is connected with the lifting platform.

Optionally, the railway transportation vehicle further comprises a rotary saddle rotatably mounted on the side wall of the concave chassis to switch between two positions of rotation below the lifting platform and rotation outside the coverage area of the lifting platform.

Optionally, the even number is provided with to rotatory saddle, and even number rotatory saddle symmetry distributes on two side walls of concave chassis.

Optionally, the rotary saddle includes flexible power device, rotates seat, fixed axle and saddle, flexible power device's output with it is articulated to rotate the seat, rotate the seat activity suit in on the fixed axle, the fixed axle install in on the side wall, the saddle with rotate seat fixed connection.

Optionally, the railway transportation vehicle further comprises a cab apron movably mounted at least one end of the body assembly to switch between two positions extending out of the body assembly and retracting into the body assembly.

Optionally, two cab apron are provided, and the two cab apron are respectively hinged with two ends of the vehicle body component, so that the cab apron can be overturned and extended out of the vehicle body component or overturned and retracted into the vehicle body component;

or two cab apron are provided, and the two cab apron are respectively connected with two ends of the vehicle body component in a sliding way, so that the cab apron extends out of the vehicle body component in a sliding way or is retracted into the vehicle body component in a sliding way.

Optionally, the railway transportation vehicle further comprises a cab apron driving device, and the cab apron driving device is installed on the vehicle body component and is used for driving the cab apron to extend out of the vehicle body component or retract into the vehicle body component.

Optionally, the vehicle body is formed as an integral structure; the end chassis is hollow to form an installation space inside the end chassis.

Optionally, the railway transportation vehicle further comprises a power supply system for supplying power, wherein the power supply system comprises a rechargeable battery;

the railway transportation vehicle further comprises an electrical system and a communication system, wherein the electrical system is used for being electrically connected with each electrical component of the railway transportation vehicle, and the communication system is used for realizing data communication between the railway transportation vehicle and a control console or a dispatching room.

According to the technical scheme, in the combined rail transport system provided by the invention, the lifting platform is arranged in the railway transport vehicle, and the lifting platform can be lifted to be flush with the end floor or lowered to the bottom of the vehicle body under the action of the lifting driving device, so that the loaded goods (container or road transport vehicle) can avoid the limit of the railway vehicle. When the highway-railway intermodal transportation system is applied to highway-railway intermodal transportation for rapid butt joint, a boarding platform is arranged between the highway-railway conversion station and the railway transportation vehicle, and the highway-railway conversion station and the railway transportation vehicle are connected through the boarding platform in a butt joint mode, so that highway-railway rapid transportation of highway transportation vehicle cargoes can be realized, and transportation efficiency is improved.

Compared with the intermodal tool developed in recent years, the highway-railway intermodal system provided by the invention has the advantages that the highway-railway transportation vehicle is allowed to directly drive in/out of the lifting platform of the railway transportation vehicle, so that the transportation efficiency is greatly improved, the related facility investment of the multi-type intermodal station is further reduced, the operation cost is reduced, the delivery of goods is accelerated, the characteristics of long distance, low cost and flexible highway transportation, door-to-door transportation and the like are integrated, and the system is simple and efficient, and has good economic and social benefits. Is an ideal transportation system which is suitable for urgent needs of China economy and transportation industry development and is efficient.

The invention provides a railway transportation vehicle, essentially a piggyback transportation vehicle, which integrally comprises a vehicle body component, a lifting platform and a lifting driving device, wherein the vehicle body component comprises a concave underframe and end underframes positioned at two ends of the concave underframe, the concave underframe is positioned in the middle of the vehicle body component, the concave underframe is downwards sunken to form a concave underframe structure, side walls are arranged at two sides of the concave underframe, and an end floor is arranged at the top end of the end underframe. According to the railway transportation vehicle, the lifting platform and the lifting driving device are additionally arranged in the concave underframe, the lifting platform is arranged in the concave underframe and can move in a lifting mode in a concave cavity of the concave underframe, the lifting driving device is arranged on the side wall of the concave underframe so as to avoid lifting operation space of the lifting platform, and the lifting operation space of the lifting platform is not occupied, so that descending displacement of the lifting platform is increased. The lifting platform is driven by a lifting driving device to switch between two positions of lifting to be flush with the end floor and lowering to the bottom of the concave underframe.

When the lifting driving device drives the lifting platform to be lifted to a position flush with the end floor, the lifting platform and the end floor of the concave underframe are combined together to form a whole floor, so that the road transport vehicle can directly run, namely in the state, the road transport vehicle can automatically run on the lifting platform or automatically run out of the lifting platform; when the lifting driving device drives the lifting platform to descend to the bottom of the concave underframe, the lifting platform is parked on the concave underfloor of the concave underframe. The height of the lifting platform of the railway transportation vehicle is reduced to be positioned at a low position in the transportation process, so that the height limit of the railway vehicle can be avoided, and the railway transportation vehicle is particularly suitable for transporting various containers, and can rapidly realize container conversion transportation between highway and railway transportation.

Drawings

Fig. 1 is a front view of a railway transportation vehicle in embodiment 1 of the present invention.

Fig. 2 is a left side view of the railway transportation vehicle in embodiment 1 of the present invention.

Fig. 3 is a plan view of a railway transportation vehicle in embodiment 1 of the present invention.

Fig. 4 is a front view of the railway transportation vehicle (with the side wall outer panel removed) in embodiment 1 of the present invention when the lifting platform is lifted to the loading position.

Fig. 5 is a front view of the railway transportation vehicle (with the side wall outer panel removed) in embodiment 1 of the present invention when the lifting platform is lowered to the bottom of the pit.

Fig. 6 is a perspective view of the railway transportation vehicle according to embodiment 1 of the present invention when the lifting platform is lifted to the loading position.

Fig. 7 is a perspective view of the railway transportation vehicle in embodiment 1 of the present invention when the lifting platform is lowered to the bottom of the pit.

Fig. 8 is a schematic structural view of a lifting drive device in a railway transportation vehicle according to an embodiment of the present invention.

Fig. 9 is a schematic view of a structure of a rotary pallet in a railway transportation vehicle according to an embodiment of the present invention.

Fig. 10 is a front view of a railway transportation vehicle in accordance with embodiment 1 of the present invention when transporting 3 20-foot containers.

Fig. 11 is a front view of a railway transportation vehicle in accordance with embodiment 1 of the present invention when transporting 1 40 feet container.

Fig. 12 is a front view of the railway transportation vehicle in embodiment 1 of the present invention when the railway transportation vehicle is transported.

Fig. 13 is a front view showing the docking of a railway transportation vehicle with a boarding station in the intermodal system of embodiment 2 of the present invention.

Fig. 14 is a partial enlarged view at a in fig. 13.

Fig. 15 is a top view of the docking station of the railway transportation vehicle in the intermodal system of the present invention in example 2.

Reference numerals illustrate: 100-railway transportation vehicles; 10-vehicle body components, 11-concave underframe, 111-side walls, 1111-side beams, 1112-upper side posts, 12-end underframe and 121-end floor; 20-lifting platform, 21-container lock, 22-connecting seat; 30-lifting driving device, 31-power device, 32-sprocket, 33-chain, 34-mounting seat 34; 40-railway vehicle hitch; 50-bogie; 60-a coupler buffer system; 70-ferrying plates; 80-rotating support, 81-telescopic power device, 82-rotating seat, 83-fixed shaft and 84-support; 90-cab apron driving device; 200-boarding platform.

Detailed Description

In order to make the technical solution more clearly understood by those skilled in the art, the following detailed description is made with reference to the accompanying drawings.

In order to solve the technical problems that the conversion is time-consuming and the distance between the door and the station cannot be minimized in the existing common rail intermodal transportation mode, the invention provides a railway transportation vehicle, and the basic inventive concept is as follows:

a railway transportation vehicle comprises a vehicle body component, a lifting platform and a lifting driving device; the vehicle body component comprises a concave underframe and end underframes positioned at two ends of the concave underframe, the concave underframe is positioned in the middle of the vehicle body component, the concave underframe is downwards sunken to form a concave bottom structure, side walls are arranged at two sides of the concave underframe, and an end floor is arranged at the top end of the end underframe; the lifting platform is arranged in the concave underframe, the lifting driving device is arranged on the side wall of the concave underframe, and the lifting platform is driven by the lifting driving device to switch between two positions of lifting to be flush with the end floor and lowering to the bottom of the concave underframe.

According to the railway transport vehicle, the lifting platform is arranged in the concave underframe in the middle of the vehicle, and can be lifted to be flush with the end floor or lowered to the bottom of the concave underframe under the action of the lifting driving device arranged on the side wall, so that the loaded road transport vehicle avoids the limit of the railway vehicle. When the railway transport vehicle is applied to the highway-railway intermodal transportation system, only a boarding platform is required to be arranged between the highway-railway switching station and the railway transport vehicle, so that the highway-railway transport vehicle can rapidly transport the highway and the railway, and the transport efficiency is improved. Meanwhile, various containers can be transported, and the container conversion transportation between highway and railway transportation can be realized rapidly. The highway-railway intermodal system provided by the invention greatly improves the transportation efficiency because the highway transportation vehicle is allowed to directly drive in/out on the lifting platform of the railway transportation vehicle, further reduces the related facility investment of the multi-type intermodal station, reduces the operation cost and accelerates the delivery of goods. Therefore, the defects that the conversion is time-consuming and the distance between the door and the station cannot be minimized in the existing common rail intermodal transportation mode are overcome.

The following describes the technical scheme of the present invention in detail with reference to specific embodiments:

example 1:

the embodiment of the invention provides a railway transport vehicle 100, which is different from the existing railway piggyback-container transport flat vehicle in overall architecture and working principle.

Referring to fig. 1 to 3, the railway transportation vehicle 100 provided by the present invention includes a body assembly 10, a lift platform 20, and a lift driving device 30. The vehicle body assembly 10 comprises a concave underframe 11 and end underframe 12 positioned at two ends of the concave underframe 11, the concave underframe 11 is positioned in the middle of the vehicle body assembly 10, the concave underframe 11 is downwards concave to be in a concave bottom structure, and side walls 111 are arranged at two sides of the concave underframe 11. Since the railway transportation vehicle 100 provided by the invention needs to be provided with the lifting platform 20 and the lifting driving device 30, the two side walls 111 of the concave bottom frame 11 need to be subjected to reinforcement design. The tip of the end chassis 12 has an end floor 121, and the end chassis 12 is preferably hollow in structure so as to form an installation space inside the end chassis 12. According to the railway transportation vehicle 100 and the rated load, in this embodiment, the vehicle body assembly 10 is of an integral structure, that is, the concave underframe 11 and the end underframe 12 are fixedly connected together, and the concave underframe 11 and the end underframe 12 share an integral side wall. The body assembly 10 is preferably symmetrical, for example, in the transverse direction (transverse to the width of the vehicle in a railway vehicle) and/or in the longitudinal direction (transverse to the length of the vehicle in a railway vehicle), to optimize the overall load bearing.

The basic configuration of the railway vehicle such as a braking device, a railway vehicle coupling 40, a coupler buffer system 60, a bogie 50 and the like is also arranged on the vehicle body assembly 10, and the concrete arrangement form is that the railway vehicle coupling 40 and the coupler buffer system 60 are additionally arranged at two ends of the vehicle body assembly 10, the bogie 50 is arranged on the end underframe 12, and the braking device can be selectively arranged inside the end underframe 12. Since the structure of the brake device, the railway car hitch 40, the coupler buffer system 60 and the bogie 50 is not modified in the present invention, the structure of the brake device, the railway car hitch 40, the coupler buffer system 60 and the bogie 50 can be referred to in the prior art, and the detailed description thereof will not be described herein.

Referring to fig. 4 to 7, in the railway transportation vehicle 100 provided by the present invention, the lift platform 20 and the lift driving device 30 are both provided on the concave chassis 11, wherein the lift platform 20 is located in the concave chassis 11, the lift driving device 30 is mounted on the side wall 111 of the concave chassis 11, and the lift platform 20 is driven by the lift driving device 30 to switch between two positions of being raised to be flush with the end floor 121 and lowered to the bottom of the concave chassis 11.

The lift platform 20 is a component provided independently of the concave chassis 11, and HG785D high-strength steel is used as a main body material of the lift platform 20 for securing structural strength. The lift platform 20 may alternatively be provided in a unitary or split construction depending on the railway transportation vehicle 100 and the rated load. The specific structure of the lifting platform 20 is set according to the design bearing capacity, for example, the underframe structure of a common railway flatcar or the structure of the carriage floor of the railway flatcar can be referred, and the specific structural form of the lifting platform 20 is not limited by the invention. In this embodiment, the lifting platform 20 adopts a split structure, specifically, the lifting platform 20 is formed by two symmetrically arranged split platforms, and the gap between the two split platforms at the butt joint position should meet the requirement of normal running of the vehicle.

In the railway transportation vehicle 100 provided by the present invention, the lifting platform 20 is not only capable of carrying an on-road transportation vehicle, but also has a function of transporting a container, so that a mechanism for fixing a load such as a container lock 21 (e.g., a general-purpose flip-type container lock 21 head) and a tire fixing device needs to be provided on the top surface of the lifting platform 20, and accordingly, the corresponding container lock 21 and tire fixing device are omitted on the side wall 111 and/or the concave floor of the concave bottom frame 11. The structure and distribution of the mechanism for fixing the load may refer to the prior art, and the details are not described herein.

The lifting driving device 30 is used for driving the lifting platform 20 to move up and down in the concave bottom cavity of the concave bottom frame 11. The elevation driving device 30 is installed on the side wall 111 of the concave chassis 11 to avoid an elevation operation space of the elevation platform 20, and does not occupy the elevation operation space of the elevation platform 20, thereby increasing a descending displacement of the elevation platform 20. The elevating platform 20 is driven by the elevating driving means 30 to switch between two positions of being raised to be flush with the end floor 121 and lowered to the bottom of the concave chassis 11. When the lifting driving device 30 drives the lifting platform 20 to be lifted to a position flush with the end floor 121, the lifting platform 20 and the end floor 121 of the concave underframe 11 are combined together into a whole floor for the road transport vehicle to directly travel, that is, in the state, the road transport vehicle automatically travels into the lifting platform 20 or automatically travels out of the lifting platform 20; when the lifting driving device 30 drives the lifting platform 20 to descend to the bottom of the concave underframe 11, the lifting platform 20 is parked on the concave underfloor of the concave underframe 11, and the height limit of the railway vehicle can be avoided due to the reduction of the height, in which state the railway transportation vehicle 100 provided by the invention can also be used for transporting containers.

Since the lifting driving device 30 is mounted on the side wall 111 of the concave chassis 11, that is, on the side wall 111 of the concave chassis 11, the lifting driving device 30 is preferably provided with 2 or more lifting driving devices 30 spaced apart on the side wall 111 of the concave chassis 11 in consideration of the overall size of the lifting platform 20 and the stability of the lifting movement.

In view of the installation position provided by the concave chassis 11, in this embodiment, an even number of the lifting driving devices 30 are provided, and the even number of the lifting driving devices 30 are symmetrically distributed on the two side walls 111 of the concave chassis 11. For example, fig. 4 to 7 show an implementation of the present example: the concave underframe 11 is provided with 8 lifting driving devices 30 in total, the 8 lifting driving devices 30 are symmetrically distributed on the side walls 111 on two sides, and the 4 lifting driving devices 30 on the same side wall 111 are symmetrically distributed along the transverse central line of the concave underframe 11 in pairs, so that the lifting platform 20 is uniformly stressed in the transverse and longitudinal directions.

The lifting drive device 30 may be any conventional lifting movement mechanism, such as a hydraulic cylinder, an air cylinder, an electric push rod, a jack, a motor-driven rack and pinion mechanism, a motor-driven chain transmission mechanism, or a combination of the above mechanisms. The specific embodiment of the elevation driving apparatus 30 is not limited in the present invention.

Referring to fig. 8, in the present embodiment, the lifting driving device 30 adopts a sprocket 32 lifting mechanism, and specifically includes a power device 31, a sprocket 32 and a chain 33. The power device 31 is a telescopic mechanism, such as a hydraulic cylinder, a cylinder, an electric push rod, a jack, etc., and the hydraulic cylinder is adopted in the embodiment. The sprocket 32 is mounted on the concave chassis 11 for supporting the chain 33, and specifically, a mounting seat 34 is provided on the top surface of the side wall 111 of the concave chassis 11, and the sprocket 32 is rotatably mounted on the mounting seat 34. The chain 33 is meshed with the chain wheel 32, one end of the chain 33 is connected with the output end of the power device 31, the other end of the chain is connected with the lifting platform 20, and the power device 31 drives the lifting platform 20 to lift by utilizing the principle of a fixed pulley.

For convenience of connection, in this embodiment, the sides of the lifting platform 20 are provided with the same number of connection seats 22 as the lifting driving devices 30, and the chains 33 are connected with the connection seats 22, which can be realized by adopting a fixed connection or a hinged connection manner. Preferably, 8 sliding ways for lifting 8 lock chains 33 are arranged in the side wall 111 of the concave underframe 11, for example, the inner part of the upper side column 1112 of the side wall 111 of the vehicle body is used as a sliding way, so that the lifting driving device 30 and the connecting seat 22 are prevented from occupying the actual cargo space, and the upper side column 1112 of the side wall 111 can also protect the lock chains 33. Further, as a preferable solution, 8 outer shells are disposed at the top of the side wall 111 of the concave bottom frame 11, for protecting the power device 31, for example, the power device 31 is mounted in a side beam 1111 (located at the top of the side wall 111 and protruding out of the end floor 121) of the side wall 111, and the side beam 1111 limits the connection seat 22, so as to limit the maximum stroke of the lifting platform 20 lifted under the drive of the lifting driving device 30.

In order to improve the stability of the lifting platform 20 in the loading position (lifted to be flush with the end floor 121) and the overall loading capacity of the vehicle, the railway transportation vehicle 100 according to the present embodiment further includes a rotating pallet 80, and the rotating pallet 80 is rotatably mounted on the side wall 111 of the concave chassis 11 to switch between two positions of rotating below the lifting platform 20 and rotating outside the coverage area of the lifting platform 20. When the lift driving device 30 drives the lift platform 20 to rise to a position flush with the end floor 121, the rotary gantry 80 rotates below the lift platform 20 to support the lift platform 20, as shown in fig. 4, where the load of the load is mainly borne by the rotary gantry 80. When the lifting driving device 30 drives the lifting platform 20 to descend to the bottom of the concave chassis 11, the rotating gantry 80 rotates outside the coverage area of the lifting platform 20, as shown in fig. 5, so as to avoid interference with the descending of the lifting platform 20.

In view of the installation position provided by the concave chassis 11, in this embodiment, an even number of the rotary pallets 80 are provided, and the even number of the rotary pallets 80 are symmetrically distributed on the two side walls 111 of the concave chassis 11. For example, fig. 4 to 7 show an implementation of the present example: the concave underframe 11 is provided with 8 rotary brackets 80,8, the rotary brackets 80 are symmetrically distributed on the side walls 111 on two sides, and the 4 rotary brackets 80 on the same side wall 111 are distributed in pairs and symmetrically along the transverse central line of the concave underframe 11, so that the lifting platform 20 is uniformly stressed in the transverse and longitudinal directions.

The rotary gantry 80 can adopt any conventional rotary motion mechanism, and in general, a motor or a telescopic mechanism is used to provide driving force, and a link mechanism is used to realize rotation, so that the conventional rotary motion mechanism satisfying the above-described operation principle can be applied to the present invention. Embodiments of the rotating gantry 80 are not limiting of the invention.

Referring to fig. 9, in the present embodiment, the rotary gantry 80 includes a telescopic power device 81, a rotary base 82, a fixed shaft 83, and a gantry 84, and the telescopic power device 81 is a telescopic mechanism, such as a hydraulic cylinder, an air cylinder, an electric push rod, a jack, and the like, and the present embodiment adopts the hydraulic cylinder. The output end of the telescopic power device 81 is hinged with the rotating seat 82, the rotating seat 82 is movably sleeved on the fixed shaft 83, the fixed shaft 83 is mounted on the side wall 111, the supporting table 84 is fixedly connected with the rotating seat 82, the hinged point of the output end of the telescopic power device 81 and the rotating seat 82 is a certain distance away from the fixed connecting point of the supporting table 84 and the rotating seat 82, the rotating seat 82 serves as a rocker, and under the driving of the telescopic power device 81, the rotating seat 82 rotates around the fixed shaft 83 in a fixed shaft manner, so that the supporting table 84 is driven to rotate below the lifting platform 20 to support the lifting platform 20, or the supporting table is driven to rotate outside the coverage area of the lifting platform 20 to avoid the lifting platform 20.

Considering that the railway transportation vehicle 100 often has a certain gap with a platform after being at a stop, and after a plurality of sections of railway vehicles are connected through the railway vehicle coupling 40 and the coupler buffering system 60, a gap of 700 mm-800 mm exists between the two sections of vehicles, so that the traffic of the road transportation vehicles is affected. Referring to fig. 2, the railway transportation vehicle 100 further includes, as a preferred embodiment, a cab apron 70 movably mounted to at least one end of the body assembly 10 for switching between two positions extending out of the body assembly 10 and retracted into the body assembly 10. When the railway transportation vehicle 100 is at the stop, the cab apron 70 is extended out of the vehicle body assembly 10 and is leveled, so that the cab apron 70 is level with the end floor 121 and the top surface of the platform, and the traffic of the railway transportation vehicle is facilitated. The cab apron 70 is retracted into the body assembly 10 during travel of the railway transportation vehicle 100 without affecting normal travel of the railway transportation vehicle 100.

The number of the cab apron 70 is preferably two, the two cab apron 70 are respectively and movably connected with two ends of the vehicle body assembly 10, specifically, the cab apron 70 can be hinged or slidably connected with the end underframe 12, so that the cab apron 70 can extend out of the vehicle body assembly 10 in a turnover/sliding manner or retract into the vehicle body assembly 10 in a turnover/sliding manner. The movement form of the cab apron 70 is designed according to the actual structure of the body composition 10, and the present invention is not limited. The two cab apron 70 are preferably identical in structure, size, and manner of connection to the car body, so that the railway transportation vehicle 100 provided with the cab apron 70 has better versatility. In this embodiment, two symmetrical turnover cab apron plates with identical shape and size are adopted, and the cab apron plate 70 is hinged to the end of the vehicle body assembly 10 (preferably the end of the end floor 121) and can be turned to a horizontal state or a vertical state.

As a preferred embodiment, the railway transportation vehicle 100 further includes a cab apron driving device 90, and the cab apron driving device 90 is mounted on the car body assembly 10 for driving the cab apron 70 to extend out of the car body assembly 10 or retract into the car body assembly 10. The cab apron driving device 90 is preferably a hydraulic cylinder, an air cylinder, an electric push rod, a jack or other mechanism using hydraulic oil, air pressure, electric power as energy sources, and is convenient to implement on the railway transportation vehicle 100. The hydraulic actuators (e.g., hydraulic cylinders, hydraulic motors, etc.) in the railway transportation vehicle 100 need to be configured with corresponding hydraulic systems, which may be selectively installed inside the end floors 121, that is, as a most preferred solution, the hydraulic systems and the brake devices are installed inside the two end floors 121 of the railway transportation vehicle 100, respectively.

For automated operation, the railway transportation vehicle 100 further includes, as a preferred embodiment, an electrical system for electrically connecting all of the power components of the railway transportation vehicle 100, a communication system, and a power supply system; the communication system realizes the data communication between the railway transportation vehicle 100 and the control console or the dispatching room, and can specifically adopt a wired communication mode such as a data cable or a wireless communication mode such as a 4G/5G communication technology, bluetooth, wiFi and the like. The power supply system may employ a rechargeable battery, a solar battery system, or an axial end power generation device, etc., which the present invention is not limited to. In this embodiment, the power supply system is preferably a rechargeable battery, and the rechargeable battery is charged by a quick charging pile arranged at a receiving point or a delivering point of a rail transit station.

Example 2:

based on the same inventive concept, the present embodiment provides a common rail intermodal system including a common rail conversion yard (not shown), a boarding station 200, and a railway transportation vehicle 100, see fig. 13 and 15. Boarding station 200 is used to dock a rail transit yard with rail transit vehicle 100 to transfer cargo between the rail transit yard and rail transit vehicle 100. Boarding station 200 may employ any of the existing rail transit docks such as a mobile dock bridge or a yard cement boarding station.

The railway transportation vehicle 100 includes a vehicle body component, and a lift platform and a lift driving device mounted on the vehicle body component, the lift platform is driven by the lift driving device to switch between two positions of rising to be flush with the end floor of the railway transportation vehicle 100 and falling to the bottom of the vehicle body component, when the lift platform rises to be flush with the end floor of the railway transportation vehicle 100, the rail transit yard, the boarding platform 200, the end floor of the railway transportation vehicle 100, and the lift platform are sequentially butted to form a complete driving road, and the rail transportation vehicle can travel into the railway transportation vehicle 100 from the rail transit yard or travel into the rail transit yard from the railway transportation vehicle 100.

The lifting driving device of the railway transportation vehicle 100 may be a mechanical lifting device, an air pressure lifting device or a hydraulic lifting device, and the specific structure is not limited in this application. In this embodiment, the railway transportation vehicle 100 adopts the railway transportation vehicle 100 of the above embodiment 1, and the detailed structure refers to embodiment 1 and will not be described here again. The cab apron is disposed on the railway transportation vehicle 100 and/or the boarding platform 200, and is used for docking the railway transportation vehicle 100 with the boarding platform 200, and the specific structure and the installation manner of the cab apron can refer to embodiment 1, and details are not repeated here.

In this embodiment, the cab apron is disposed on the railway transportation vehicle 100, that is, the cab apron 70, and the boarding platform 200 specifically adopts a mobile boarding bridge. The railway transportation vehicle 100 is provided with a controller and a rechargeable battery for supplying power, wherein the controller is used for being electrically connected with all power utilization components of the railway transportation vehicle 100, and realizing remote communication between the railway transportation vehicle 100 and a control console or a dispatching room. A fast charging stake is provided in the rail transit yard to charge the rechargeable battery, thereby allowing the railway transportation vehicle 100 to be powered by the vehicle's own battery in a manner that provides kinetic energy. Of course, in other embodiments, the rail transit vehicle 100 may also be powered by a train consist of powered vehicles or other rail vehicle powered modes. It should be appreciated that the rail wagon power supply and communication equipment commonly used in the art can be utilized with the rail transit vehicle 100 of the present invention.

Application example:

a certain type of railway transportation vehicle adopts the railway transportation vehicle 100 of the embodiment 1, the vehicle body is of an all-steel welded structure, and the main body comprises at least 1 concave underframe 11, 2 liftable platforms, 2 turnover ferry plates 70 and 8 sets of side chain wheel 32 lifting mechanisms (namely a lifting driving device 30). The whole vehicle is of a symmetrical structure, 8 sets of side chain wheel 32 lifting mechanisms are respectively arranged in 2 groups in the side column 1112 on the side wall 111 of the vehicle body, and 2 liftable platforms are in seamless butt joint to form the lifting platform 20. The high-strength steel is adopted as the main body material of the lifting platform 20, under the condition of meeting the requirement of external dimensions, the high super performance of the lifting platform 20 under the condition of dead weight of 1.6 tons and maximum bearing weight of 20t is realized by means of refining and analyzing stress conditions, optimizing structural forms and the like, and the lifting platform is in an advanced level in the same field.

Referring to fig. 13 to 15, the common rail intermodal system including the railway transportation vehicle 100 described above operates as follows:

1. firstly, the turnover cab apron 70 of the railway transportation vehicle 100 shown in fig. 1 is put on a flat surface and is connected with a movable dock bridge or a station cement boarding platform (boarding platform 200) to form a straight plane, as shown in fig. 13 and 15;

2. lifting platform 20 is started to rise to a position slightly higher than the bearing position;

3. the rotating gantry 80 rotates to the load position and remains stationary;

4. the lifting platform 20 falls onto the rotary supporting platform 80, the hydraulic system discharges force, the lifting platform 20 is carried by the rotary supporting platform 80, and the vehicle state is shown in fig. 4 and 6;

5. the road transport vehicle is driven onto the lift platform 20 by itself from a mobile dock bridge or yard cement boarding platform;

6. lifting platform 20 is started to rise to a position slightly higher than the bearing position;

7. the rotary gantry 80 rotates back to the initial position;

8. the lift platform 20 starts to descend until the initial position, and the landing signal is synchronously transmitted to the control system, at which time the vehicle state is as shown in fig. 5 and 7.

Through the embodiment, the invention has the following beneficial effects or advantages:

1) According to the railway transportation vehicle provided by the embodiment of the invention, the technology of the built-in lifting platform of the concave underframe is innovated, 2 20 feet or 1 40 feet containers are placed into the concave underframe (shown in fig. 11) for transportation, 3 20 feet containers (not fully loaded) are sequentially discharged under the condition of lifting the platform (shown in fig. 10), the function of transporting containers with different specifications is realized, the whole upper end surface adopts a concave bottom structure so as to facilitate the transportation of the vehicle in a planar structure mode, the built-in lifting platform of the concave underframe is used for bearing the highway transportation vehicle (shown in fig. 12), the highway transportation vehicle is realized without the assistance of a station lifting appliance, the autonomous boarding loading is realized, and the gap that the railway vehicle cannot transport a highway truck in any line is filled.

2) According to the railway transportation vehicle provided by the embodiment of the invention, the lifting driving device is arranged at the upper end of the side wall, the sliding way for lifting the lifting platform is arranged in the side wall, and the power is transmitted to the lifting platform through the chain wheel system, so that the lifting action of the lifting platform is realized, the condition that the transportation route of a railway flatcar type vehicle is limited due to the fact that a transportation highway truck exceeds the limit is avoided, and the railway transportation vehicle is advanced in the same field.

3) The railway transportation vehicle provided by the embodiment of the invention adopts the technology that the rotary supporting platform is adopted to support the lifting platform in a lifting state, the supporting platform is retracted in the processes of descending and transporting the platform, the supporting platform is provided with rotary power by the electric push rod, the rotary actions are synchronous, 2 working positions of unscrewing and returning are provided with a self-locking function (realized by a hydraulic system), the supporting performance of the lifting platform for loading and walking of a highway truck is realized, and the lifting platform is in an advanced level in the same field.

4) According to the railway transportation vehicle provided by the embodiment of the invention, the high-strength steel is adopted as the main body material of the lifting platform, under the condition of meeting the requirement of external dimensions, the high super performance of the platform with the maximum bearing weight of 20t under the condition of dead weight of 1.6 tons is realized by means of thinning and analyzing the stress condition, optimizing the structural form and the like, and the railway transportation vehicle is in an advanced level in the same field.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims (14)

1. A public rail intermodal system, characterized in that: the system comprises a rail transit station, a boarding platform and railway transportation vehicles, wherein the rail transit station is in butt joint with the end floors of the railway transportation vehicles through the boarding platform so as to enable goods to be transported between the rail transit station and the railway transportation vehicles; the railway transportation vehicle comprises a vehicle body component, and a lifting platform and a lifting driving device which are arranged on the vehicle body component, wherein the lifting platform is driven by the lifting driving device to switch between two positions of being lifted to be flush with the end floor and being lowered to the bottom of the vehicle body component; the vehicle body comprises a concave underframe and end underframes positioned at two ends of the concave underframe, side walls are arranged at two sides of the concave underframe, and the top end of the end underframe is provided with the end floor; the lifting platform is arranged in the concave underframe, the lifting driving device is arranged on the side wall of the concave underframe, and the lifting platform is driven by the lifting driving device to switch between two positions of being lifted to be flush with the end floor and being lowered to the bottom of the concave underframe; wherein, lift drive includes power device, sprocket and chain, wherein: the power device is a telescopic mechanism; the chain wheel is arranged on the side wall and used for supporting the chain; the chain is meshed with the chain wheel, one end of the chain is connected with the output end of the power device, and the other end of the chain is connected with the lifting platform.

2. The intermodal system as set forth in claim 1 wherein: the boarding platform is a movable boarding axle or a station cement boarding platform; the railway transportation vehicle and/or the boarding platform are/is provided with a cab apron, and the cab apron is used for butting the boarding platform with the end floor of the railway transportation vehicle.

3. The intermodal system of claim 1 or 2 wherein: the railway transportation vehicle is provided with a power supply system for supplying power, and the power supply system comprises a rechargeable battery; and a quick charging pile for charging the rechargeable battery is arranged in the public-railway converting station.

4. The railway transportation vehicle applied to the intermodal system of any one of claims 1 to 3.

5. The railway transportation vehicle of claim 4, wherein: the lifting driving devices are arranged at more than 2, and the lifting driving devices are distributed on the side wall of the concave underframe at intervals.

6. The railway transportation vehicle of claim 5, wherein: the lifting driving devices are arranged in an even number, and the lifting driving devices are symmetrically distributed on the two side walls of the concave underframe.

7. Railway transportation vehicle according to any of the claims 4-6, characterized in that: the railway transportation vehicle further comprises a rotary supporting platform which is rotatably arranged on the side wall of the concave underframe so as to switch between two positions of rotating below the lifting platform and rotating outside the coverage area of the lifting platform.

8. The railway transportation vehicle of claim 7, wherein: the rotary pallets are arranged in an even number, and the rotary pallets are symmetrically distributed on the two side walls of the concave underframe.

9. The railway transportation vehicle of claim 7, wherein: the rotary saddle comprises a telescopic power device, a rotating seat, a fixed shaft and a saddle, wherein the output end of the telescopic power device is hinged with the rotating seat, the rotating seat is movably sleeved on the fixed shaft, the fixed shaft is mounted on the side wall, and the saddle is fixedly connected with the rotating seat.

10. Railway transportation vehicle according to any of claims 4-6, 8-9, characterized in that: the railway transportation vehicle further comprises a cab apron movably mounted at least one end of the body assembly for switching between two positions extending out of the body assembly and retracting into the body assembly.

11. The railway transportation vehicle of claim 10, wherein: the two cab apron plates are hinged with two ends of the vehicle body component respectively, so that the cab apron plates extend out of the vehicle body component in a turnover manner or retract into the vehicle body component in a turnover manner;

or two cab apron are provided, and the two cab apron are respectively connected with two ends of the vehicle body component in a sliding way, so that the cab apron extends out of the vehicle body component in a sliding way or is retracted into the vehicle body component in a sliding way.

12. The railway transportation vehicle of claim 10, wherein: the railway transportation vehicle further comprises a cab apron driving device which is arranged on the vehicle body component and used for driving the cab apron to extend out of the vehicle body component or retract into the vehicle body component.

13. Railway transportation vehicle according to any of claims 4-6, 8-9, 11-12, characterized in that: the vehicle body is formed into an integrated structure; the end chassis is hollow to form an installation space inside the end chassis.

14. Railway transportation vehicle according to any of claims 4-6, 8-9, 11-12, characterized in that: the railway transportation vehicle further comprises a power supply system for supplying power, the power supply system comprising a rechargeable battery;

the railway transportation vehicle further comprises an electrical system and a communication system, wherein the electrical system is used for being electrically connected with each electrical component of the railway transportation vehicle, and the communication system is used for realizing data communication between the railway transportation vehicle and a control console or a dispatching room.

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