阅读说明：本技术 一种公铁两用运输车组及其编组方法 (Highway-railway dual-purpose transport vehicle set and marshalling method thereof ) 是由 张超德 李冬 杨发先 祝笈 陆强 李嘉乐 周炯 徐誌 杨清帆 吴畅 黄瑞 袁亮 于 2019-12-04 设计创作，主要内容包括：本发明公开了一种公铁两用运输车组及其编组方法,涉及铁路货车技术领域；其包括至少两辆公铁两用半挂车、至少一台关节转向架及两台端部转向架,每个关节转向架位于相邻两辆公铁两用半挂车之间,关节转向架通过其车组连挂装置与其两侧的公铁两用半挂车连接；端部转向架位于车组两端,端部转向架的一端通过其端部连挂装置与公铁两用半挂车连挂,另一端通过其车钩缓冲装置与铁路机车或铁路货车连挂；通过实施本技术方案,可有效解决现有公铁两用运输车组内无效自重较重、车辆端部间隙较大、列车纵向力传递不均匀的技术问题,可实现车组快速编组连挂,降低车组无效自重,可减小车辆端部间隙,列车纵向力传递均匀,可有效提高车组性能和运输经济性。(The invention discloses a highway and railway dual-purpose transport vehicle set and a marshalling method thereof, relating to the technical field of railway freight cars; the device comprises at least two highway-railway semitrailers, at least one knuckle bogie and two end bogies, wherein each knuckle bogie is positioned between two adjacent highway-railway semitrailers and is connected with the highway-railway semitrailers on two sides of the knuckle bogie through a train set coupling device; the end part bogies are positioned at two ends of the train set, one end of each end part bogie is connected with the road-railway dual-purpose semitrailer through an end part connecting and hanging device, and the other end of each end part bogie is connected and hung with the railway locomotive or the railway wagon through a coupler buffer device; through implementing this technical scheme, can effectively solve in the dual-purpose transport vechicle group of current highway railway invalid dead weight heavier, the vehicle tip clearance is great, the inhomogeneous technical problem of the vertical power transmission of train, can realize that the group of cars marshals fast and even hangs, reduces the invalid dead weight of group of cars, can reduce the vehicle tip clearance, the vertical power transmission of train is even, can effectively improve group of cars performance and transportation economy.)

1. The utility model provides a highway-railway dual-purpose transport vechicle group which characterized in that: comprises that

The highway-railway semitrailers are sequentially arranged along the advancing direction of the highway-railway semitrailer;

each joint bogie is positioned between two adjacent highway-railway dual-purpose semitrailers, and a train set coupling device is arranged on each joint bogie, and each joint bogie is respectively connected with the highway-railway dual-purpose semitrailers on two sides of the train set coupling device through two ends of the train set coupling device so as to complete coupling of the joint bogie and the two adjacent highway-railway dual-purpose semitrailers on two sides of the joint bogie in the advancing direction;

the two end part bogies are respectively positioned at two ends of a train set, an end part coupling device and a coupler buffer device are arranged on the end part bogies, one end of each end part bogie is coupled with a road-rail dual-purpose semitrailer through the end part coupling device, and the other end of each end part bogie is coupled with a railway locomotive or a railway wagon through the coupler buffer device.

2. The combination for road and rail transport as set forth in claim 1, wherein: the joint bogie is a two-shaft welding framework type bogie, the joint bogie comprises a joint welding framework, two ends of the joint welding framework are symmetrically arranged about the center, the train set coupling device comprises a train set coupling hanging plate, a train set coupling seat and a train set connecting round pin, the middle of the train set coupling hanging plate is connected with the joint welding framework, two ends of the train set coupling hanging plate are provided with train set coupling sections, and the train set coupling hanging seat is arranged in an end beam of a highway-railway dual-purpose semitrailer; the train set coupling sections at two ends of the train set coupling plate are respectively inserted into train set coupling seats in the end beams of the highway-railway dual-purpose semitrailer at two sides of the traveling direction of the train set coupling sections, and respectively penetrate through the train set coupling plate and corresponding train set coupling seat pin holes from bottom to top through the train set connecting round pins so as to finish coupling of the knuckle bogie and two adjacent highway-railway dual-purpose semitrailers at two sides of the traveling direction of the knuckle bogie.

3. The combination for road and rail transport as defined in claim 2, wherein: the joint welding truss comprises a joint truss longitudinal beam and a joint truss cross beam symmetrically arranged about the center of the joint truss longitudinal beam, joint truss slopes and joint truss bearing platforms are symmetrically arranged at two ends of the joint truss longitudinal beam, and the joint truss slopes are inclined downwards from the middle part of the joint welding truss along one side close to the highway-railway dual-purpose semitrailer; the joint frame bearing platform is located on the top end, close to the joint frame slope, of the joint frame longitudinal beam, and the joint frame bearing platform is of a horizontally arranged plane structure and is used for bearing vertical loads of the highway-railway dual-purpose semitrailer.

4. The combination for road and rail transport as set forth in claim 3, wherein: the slope of the joint frame of the joint welding frame has two-stage slopes, and the slope of the lower portion of the joint frame is larger than that of the upper portion of the joint frame, so that when the joint bogie is pushed into the lower plane of the end beam of the dual-purpose semitrailer for highway and railway through the slope of the joint frame to be connected and hung, the frame of the dual-purpose semitrailer for highway and railway can be automatically lifted to be separated from a rail.

5. The combination for road and rail transport as defined in claim 2, wherein: the train set connecting and hanging plate is of a dumbbell-shaped symmetrical flat plate structure, a fixed mounting seat is arranged in the middle of the train set connecting and hanging plate, and the train set connecting and hanging plate is fixed on the joint welding framework through the fixed mounting seat; and the coupling centers of the train unit coupling sections at the two ends of the train unit coupling plate are symmetrically arranged around the center of the train unit coupling plate, the heights of the coupling centers at the two ends of the train unit coupling plate are the same, and the train unit coupling seats at the two ends are positioned on the same horizontal plane, so that additional bending moment is not generated in the high direction in the advancing process of the train unit of the highway-railway dual-purpose transport vehicle.

6. The combination for road and rail transport as set forth in claim 1, wherein: the end part bogie is a two-axle welding framework type bogie, the end part bogie comprises an end part welding framework, an end part coupling device and a traditional railway wagon coupler buffering device, the end part coupling device comprises an end part coupling plate, an end part coupling seat and an end part connecting round pin, the end part coupling plate comprises a fixed section and an end part coupling section, the end part coupling plate is connected with the end part welding framework through the fixed section, the end part coupling seat is positioned in an end beam at the end part of the semitrailer for both public and railway, one end of the end part bogie is inserted into the end part coupling seat through the end part coupling section and penetrates through the end part coupling plate and an end part coupling seat pin hole from bottom to top through the end part connecting round pin so as to finish coupling of the end part bogie and the semitrailer for both public and railway; the other end of the end bogie is provided with a car coupler buffer device; the end part welding frame comprises an end part frame longitudinal beam and four sections of end part frame cross beams distributed along the length direction of the end part frame longitudinal beam, the four sections of end part frame cross beams are vertically connected with the end part frame longitudinal beam, the end part frame cross beams on two sides of the end part frame longitudinal beam are symmetrically arranged relative to the end part frame longitudinal beam, an end part frame slope and an end part frame bearing platform are arranged on the end part frame longitudinal beam, the end part frame slope inclines downwards from the middle part of the end part welding frame along one side close to the highway-railway dual-purpose semitrailer, the end part frame bearing platform is located at the top end of the end part frame longitudinal beam close to the end part frame slope, and the end part frame bearing platform is of a plane; the coupling position of the end coupling device and the road-railway dual-purpose semitrailer is positioned at the middle point of two shafts of the end bogie; and the car coupler buffer device is arranged at one end of the end part framework longitudinal beam, which is far away from the semitrailer for both highway and railway.

7. The combination for road and rail transport as set forth in claim 6, wherein: the end part framework slope has two-stage slopes, and its lower part slope is greater than the upper portion slope to when making the tip bogie push the dual-purpose semitrailer end beam lower plane of highway and railway through the end part framework slope and couple, the frame of dual-purpose semitrailer of highway and railway can rise in order to break away from the rail automatically.

8. The combination for road and rail transport as set forth in claim 6, wherein: the center of the end part coupling device is higher than the center of the car coupler buffering device, the gravity center of the end part bogie is arranged at the coupling center of the end part coupling device and the combined car of the rail-road vehicle and close to one side of the car coupler buffering device, and the end part framework bearing platform is arranged at the other side of the end part bogie.

9. The combination for road and rail transport as set forth in claim 1, wherein: the highway-railway semitrailer comprises a frame, an automobile wheel shaft, a protective device, a supporting device and a wheel shaft air suspension device with a lifting function, wherein the frame comprises a front end beam, a rear end beam and a middle beam connected with the front end beam and the rear end beam, so that the frame forms a gooseneck structure with a high front part and a low rear part.

10. The method for marshalling a train on a highway or railway vehicle as claimed in any one of claims 1 to 9, wherein: which comprises the following steps:

1) placing an end bogie which is woven into the tail part of the train set on a straight track of a grouping field;

2) the method comprises the following steps that after a first highway-railway semitrailer is pulled to a straight track of a marshalling yard to be centered by a tractor, landing legs of the first highway-railway semitrailer are put down to be supported, the tractor and the first highway-railway semitrailer are unhooked and pulled out, and the tractor is withdrawn;

3) pushing an end part bogie positioned at the tail part of the train set into the lower plane of the front end part of the frame of the first highway-railway dual-purpose semitrailer by the train, penetrating an end part connecting round pin, and connecting an end part connecting device positioned on the end part bogie at the tail part of the train set with an end part connecting seat at the front end of the first highway-railway dual-purpose semitrailer;

4) placing a first knuckle bogie on a tail track of a first highway-railway dual-purpose semitrailer and centering, and using a tractor to pull a second highway-railway dual-purpose semitrailer to back up to one side of the first knuckle bogie, which is far away from the first highway-railway dual-purpose semitrailer;

5) the second highway-railway dual-purpose semitrailer is pulled by a tractor to continue backing up, the slope of the joint welding framework of the first joint bogie is climbed, and the first joint bogie is pushed to move along the direction of the first highway-railway dual-purpose semitrailer; until the rear end of a train set connecting and hanging plate of a first knuckle bogie train set connecting and hanging device is pushed to be inserted into a train set connecting and hanging seat at the tail part of a first rail-road semi-trailer frame, the front end of the train set connecting and hanging plate is inserted into a train set connecting and hanging seat at the tail part of a second rail-road semi-trailer frame, and train set connecting round pins respectively penetrate through the train set connecting and hanging plate and the corresponding train set connecting and hanging seat from bottom to top to complete the connecting and hanging marshalling of the tail part of the first rail-road semi-trailer and the tail part of the second rail-road semi-trailer;

6) putting down the landing legs of the second highway-railway dual-purpose semitrailer for landing and supporting, and unhooking and driving out the tractor and the second highway-railway dual-purpose semitrailer;

repeating the steps 4) to 6 by analogy, and finishing the grouping of the (N-1) joint bogie and the N highway-railway dual-purpose semitrailers;

7) pushing an end part bogie which is woven into the head of the train set into the lower plane of the front end part of the frame of the Nth combined semitrailer for the highway and railway, penetrating an end part connecting round pin, and carrying out coupling marshalling on an end part coupling device of the end part bogie positioned at the head of the train set and an end part coupling seat at the front end of the Nth combined semitrailer for the highway and railway to finish marshalling of the end part bogie positioned at the head of the train set and the Nth combined semitrailer for the highway and railway of the train set;

8) the locomotive is connected with a hook buffer device of an end bogie positioned at the head of the locomotive group to finish the marshalling of two end bogies, a (N-1) middle joint bogie and the locomotive group of N highway-railway dual-purpose semitrailers.

Technical Field

The invention relates to the technical field of railway wagons, in particular to a highway-railway dual-purpose transport vehicle set and a marshalling method thereof.

Background

The multi-type intermodal transportation can give full play to the overall advantages and the combination efficiency of various transportation modes, reduces the loading and unloading times of goods in different transportation modes through the rapid transportation of the transportation units, provides seamless connection 'door-to-door' service for goods owners, and represents the development direction of comprehensive transportation. The existing highway and railway dual-purpose truck comprises two special bogies and a highway and railway dual-purpose semitrailer, wherein two ends of the highway and railway dual-purpose semitrailer are respectively connected with the coupling devices of the special bogies, and if a plurality of highway and railway dual-purpose semitrailers need to be marshalled, the car coupler buffer devices of the adjacent special bogies need to be mutually connected to form a transport vehicle set.

However, in the process of implementing the embodiment of the present invention, the inventor of the present application finds that the above prior art has at least the following technical problems: on one hand, the conventional railway wagon coupler buffer devices are adopted for connection and conversion between the conventional highway and railway dual-purpose transport vehicle groups, the connection structure is complex, the dead weight of the transport vehicle groups is heavy, the gap between vehicles is large, meanwhile, the railway wagon coupler buffer devices are installed in a traction beam of a special bogie frame, and a coupling device coupled with a highway and railway dual-purpose semitrailer is installed on the upper plane of the special bogie frame, so that the height of the coupling center inside the transport vehicle groups is changed in a gradient alternating manner, the longitudinal force of a train is transmitted unevenly, additional bending moment is generated in the height direction of the vehicle groups, and the influence on the running performance of the transport vehicle groups is; on the other hand, when the existing highway and railway dual-purpose transport vehicle set is marshalled, the coupler buffer device end of the special bogie cannot be in coupling with the highway and railway dual-purpose semitrailer, the special bogie can only be in unidirectional marshalling according to the swinging direction of the special bogie, the marshalling coupling efficiency is low, difficulty is brought to the use and management of the transport vehicle set, the marshalling speed is low, and the transport economy is low.

Disclosure of Invention

In order to solve the technical problems that the existing highway-railway dual-purpose transport vehicle set has heavy dead weight and large gaps among vehicles, the existing special bogie can only realize one-way marshalling, and the longitudinal force in the vehicle set is transmitted unevenly, the invention aims to provide a highway-railway dual-purpose transport vehicle set, which aims to simplify the internal connecting device of the highway-railway dual-purpose vehicle set, reduce the dead weight of the vehicle set, reduce the gaps among the vehicles, increase the vehicle marshalling quantity and improve the transport economy; the second purpose is that the arbitrary bidirectional coupling marshalling of the special bogie in the vehicle set and the highway-railway dual-purpose semitrailer can be effectively realized, the marshalling speed is improved, and the use and the management of the vehicle set are convenient; the third purpose is that the height of the coupling center in the road-rail dual-purpose transport vehicle set can be effectively ensured to be consistent, the longitudinal force of the train is uniformly transmitted, the horizontal direction of the vehicle set cannot generate additional resistance, multiple gradient transfer in height on the longitudinal force of the train can be effectively avoided, the attenuation of the longitudinal force is reduced, the transport energy loss is further reduced, the transport economy is improved, and the train operation performance is good; the fourth purpose is that the marshalling and coupling efficiency of the combined transport vehicle set for the highway and railway can be effectively improved, and the requirements of the freedom degrees of nodding, shaking and rolling of the railway operation working condition of the combined transport vehicle set for the highway and railway can be met.

The technical scheme adopted by the invention is as follows:

a road-rail dual-purpose transport vehicle set comprises

The highway-railway semitrailers are sequentially arranged along the advancing direction of the highway-railway semitrailer;

each joint bogie is positioned between two adjacent highway-railway dual-purpose semitrailers, and a train set coupling device is arranged on each joint bogie, and each joint bogie is respectively connected with the highway-railway dual-purpose semitrailers on two sides of the train set coupling device through two ends of the train set coupling device so as to complete coupling of the joint bogie and the two adjacent highway-railway dual-purpose semitrailers on two sides of the joint bogie in the advancing direction;

the two end part bogies are respectively positioned at two ends of a train set, an end part coupling device and a coupler buffer device are arranged on the end part bogies, one end of each end part bogie is coupled with a road-rail dual-purpose semitrailer through the end part coupling device, and the other end of each end part bogie is coupled with a railway locomotive or a railway wagon through the coupler buffer device.

Optionally, the joint bogie is a two-axle welding frame type bogie, the joint bogie comprises a joint welding frame, two ends of the joint welding frame are symmetrically arranged about the center, the train set coupling device comprises a train set coupling hanging plate, a train set coupling hanging seat and a train set connecting round pin, the middle of the train set coupling hanging plate is connected with the joint welding frame, two ends of the train set coupling hanging plate are respectively provided with a train set coupling section, and the train set coupling hanging seat is arranged in an end beam of the highway-railway dual-purpose semitrailer; the train set coupling sections at two ends of the train set coupling plate are respectively inserted into train set coupling seats in the end beams of the highway-railway dual-purpose semitrailer at two sides of the traveling direction of the train set coupling sections, and respectively penetrate through the train set coupling plate and corresponding train set coupling seat pin holes from bottom to top through the train set connecting round pins so as to finish coupling of the knuckle bogie and two adjacent highway-railway dual-purpose semitrailers at two sides of the traveling direction of the knuckle bogie. The technical scheme simplifies the internal traction coupling structure of the road-rail dual-purpose transport vehicle set, reduces the invalid dead weight of the transport vehicle set, reduces the gaps among the vehicles in the train, increases the vehicle marshalling quantity and improves the transportation economy of the vehicle set; meanwhile, the joint bogie can be effectively connected with the highway and railway semitrailer in any two directions, the marshalling speed is improved, and the use and the management of a transport vehicle set are facilitated; in addition, according to the technical scheme, the train unit coupling sections arranged at two ends of the same train unit coupling plate are connected with the train unit coupling seats in the end beams of the highway-railway semitrailer at two sides of the advancing direction of the same train unit coupling plate, so that the rapid marshalling and coupling between the highway-railway semitrailers are realized, the existing mode that the traditional railway wagon train coupler coupling device or the auxiliary connecting device needs to be used for marshalling and coupling inside a transport train unit is eliminated, the technical problems that the longitudinal force of a train is transmitted unevenly and the additional resistance is easily generated in the horizontal direction of the train unit due to the fact that the height of the coupler coupling device and the coupling center of the highway-railway combined transport coupling device are not consistent can be effectively avoided, the train operation safety is improved, and the train operation.

Optionally, the joint welding truss comprises a joint truss longitudinal beam and a joint truss cross beam symmetrically arranged about the center of the joint truss longitudinal beam, joint truss slopes and a joint truss bearing platform are symmetrically arranged at two ends of the joint truss longitudinal beam, and the joint truss slopes are inclined downwards from the middle of the joint welding truss along one side close to the highway-railway dual-purpose semitrailer; the joint frame bearing platform is located on the top end, close to the joint frame slope, of the joint frame longitudinal beam, and the joint frame bearing platform is of a horizontally arranged plane structure and is used for bearing vertical loads of the highway-railway dual-purpose semitrailer.

Optionally, the joint frame slope of the joint welding frame has two-stage slopes, and the lower slope of the joint frame slope is larger than the upper slope of the joint welding frame, so that when the joint bogie is pushed into the lower plane of the end beam of the dual-purpose semitrailer for highway and railway through the joint frame slope to be connected, the frame of the dual-purpose semitrailer for highway and railway can be automatically lifted to be separated from the rail, and in the design process, the height of the joint frame slope meets the safety distance between the dual-purpose semitrailer for highway and railway and the rail surface after.

Optionally, the train set connection hanging plate is of a dumbbell-shaped symmetrical flat plate structure, a fixed mounting seat is arranged in the middle of the train set connection hanging plate, and the train set connection hanging plate is fixed on the joint welding framework through the fixed mounting seat; and the coupling centers of the train unit coupling sections at the two ends of the train unit coupling plate are symmetrically arranged around the center of the train unit coupling plate, the heights of the coupling centers at the two ends of the train unit coupling plate are the same, and the train unit coupling seats at the two ends are positioned on the same horizontal plane, so that additional bending moment is not generated in the high direction in the advancing process of the train unit of the highway-railway dual-purpose transport vehicle. Specifically, the vehicle group coupling section wedge-shaped horizontal direction guide profiles and the vertical direction guide profiles at the two ends of the vehicle group coupling plate are symmetrically arranged around the center of the vehicle group coupling plate, so that the vehicle group coupling plate integrally forms a dumbbell-shaped symmetrical structure, and additional stress is not generated in the horizontal direction of the train.

Furthermore, the car group hitch section mounting holes at the two ends of the car group hitch plate are internally embedded with spherical hinges, the spherical hinges are positioned between the car group connecting round pins and the mounting holes during hitching, the spherical hinges comprise a spherical core and two outer spherical sleeves, the middle of the spherical core is provided with a pin hole for the car group connecting round pins to pass through, the upper end surface and the lower end surface of each outer spherical sleeve are respectively provided with a blocking shoulder, and a gap is arranged between the spherical core and the outer spherical sleeve, so that the spherical core has head shaking freedom and limited side rolling and point head freedom relative to the outer spherical sleeves. So the ball pivot makes the dual-purpose semitrailer frame of highway railway become the second force pole structure to combine the train set to link the project organization of link plate, realize the direction of the longitudinal force of train set along linking the line all the time ingeniously, and the train set links the link point at link plate both ends and is located same horizontal direction, the round pin is connected to the train set and only bears the shear force and does not bear the moment of flexure, and keep linking the central altitude unanimity of linking the device both ends, the even direction of height of the longitudinal force transmission of train set can not produce additional moment of flexure, can effectively improve transport vehicle set running performance.

Further, both ends at the joint welding framework all are provided with the elasticity uide bushing, the group of cars connects the round pin and passes the elasticity uide bushing from bottom to top in proper order, group of cars link plate and group of cars link the seat and in order to accomplish the joint bogie and the connection of two adjacent road-railway semitrailers of direction of travel both sides rather than, concretely, the elasticity uide bushing includes middle elastomer and inside and outside steel bushing, the both ends of joint welding framework all are provided with the mounting hole that is used for installing the elasticity uide bushing, the elasticity uide bushing is used for constraining group of cars to connect the round pin and only produces vertical motion for the joint welding framework when the up-and-down motion, when group of cars connects the round pin, the ball core is linked the seat and is linked together for group of cars to link the board and take place some head and side roll, group of cars.

Further, have in the train set linking and hanging seat with the train set linking and hanging section adaptation's of the train set linking and hanging plate direction interface, and the both sides inner wall along the train set linking and hanging section insertion direction of the train set linking and hanging plate in the direction interface installs side wearing plate symmetrically, and the atress shoulder and the contact of side wearing plate of train set linking and hanging section both sides, the mounting hole that the train set links the hanging plate both ends is coaxial setting rather than the train set connection round pin hole on the corresponding train set linking and hanging seat respectively, just direction interface and inserted train set linking and hanging section up end and terminal surface down all have the clearance to make the train set linking and hanging seat have the some head degree of freedom for the mounting hole that the train set links the hanging plate. Specifically, the guide interface is embedded in an end beam of the highway-railway dual-purpose frame, the horizontal cross section of the guide interface forms a concave shape similar to a V shape, and the side abrasion plates on the two sides can play a reliable guide connection role in a train set connection hanging section of a train set connection hanging plate; the side abrasion plate countersunk head is connected with the tenon bolt and the inner side wall of the guide connecting port, so that the connection is reliable, the disassembly, the maintenance and the replacement are convenient, and the limit stability is ensured; compared with the existing traction coupling structure, the coupling mode adopting the technical scheme can effectively avoid the additional increase of invalid weight, ensure the stability of rail transportation of the rail-road dual-purpose wagon, and further greatly improve the economic efficiency of rail transportation.

Optionally, the end bogie is a two-axle welded frame bogie, the end bogie comprises an end welded frame, the end coupling device comprises an end coupling plate, an end coupling seat and an end coupling round pin, the end coupling plate comprises a fixing section and an end coupling section, the end coupling plate is connected with the end welded frame through the fixing section, the end coupling seat is located in an end beam at the end of the semitrailer for both public and railway, one end of the end bogie is inserted into the end coupling seat through the end coupling section and penetrates through the end coupling plate and an end coupling seat pin hole from bottom to top through the end coupling round pin, so that coupling of the end bogie and the semitrailer for both public and railway is completed; and a car coupler buffer device is arranged at the other end of the end part bogie.

Optionally, the end welding frame comprises an end frame longitudinal beam and four sections of end frame cross beams distributed along the length direction of the end frame longitudinal beam, the four sections of end frame cross beams are all vertically connected with the end frame longitudinal beam, the end frame cross beams on two sides of the end frame longitudinal beam are symmetrically arranged relative to the end frame longitudinal beam, an end frame slope and an end frame bearing platform are arranged on the end frame longitudinal beam, the end frame slope inclines downwards from the middle of the end welding frame along one side of the end welding frame close to the highway-railway dual-purpose semitrailer, the end frame bearing platform is located at the top end of the end frame longitudinal beam close to the end frame slope, and the end frame bearing platform is of a plane structure and is used for bearing vertical load of the highway-railway; the coupling position of the end coupling device and the road-railway dual-purpose semitrailer is positioned at the middle point of two shafts of the end bogie; and the car coupler buffer device is arranged at one end of the end part framework longitudinal beam, which is far away from the semitrailer for both highway and railway.

Optionally, the end frame slope has a two-stage slope, and the lower slope is greater than the upper slope, so that when the end bogie is pushed into the lower plane of the end beam of the semitrailer for highway and railway through the end frame slope for coupling, the frame of the semitrailer for highway and railway can be automatically lifted to separate from the rail, and in the design process, the height of the end frame slope meets the safety distance from the rail surface after the semitrailer for highway and railway is lifted.

Optionally, the center of the end coupling device is higher than the center of the coupler buffer device, the center of gravity of the end bogie is arranged on one side of the coupling center of the end coupling device and the convertible car, which is close to the coupler buffer device, and the end frame bearing platform is arranged on the other side of the end bogie frame.

Furthermore, the contour of the end connecting section of the end connecting plate is the same as the contour structures of the train unit connecting sections at the two ends of the train unit connecting plate of the train unit connecting and hanging device, and the end connecting and hanging seat and the end connecting round pin in the end connecting and hanging device are the same as the structure of the train unit connecting and hanging seat and the train unit connecting round pin in the train unit connecting and hanging device and the principle of the connecting and hanging mode of the end connecting and hanging device.

Optionally, the semitrailer for highway and railway comprises a frame, a vehicle axle, a protective device, a supporting device and an axle air suspension device with a lifting function, wherein the frame comprises a front end beam, a rear end beam and a middle beam connecting the front end beam and the rear end beam, so that the frame forms a gooseneck structure with a high front part and a low rear part.

In another aspect, the present invention further provides a marshalling method for a train and highway dual-purpose transport vehicle set, which includes the following steps:

1) placing an end bogie which is woven into the tail part of the train set on a straight track of a grouping field;

2) the method comprises the following steps that after a first highway-railway semitrailer is pulled to a straight track of a marshalling yard to be centered by a tractor, landing legs of the first highway-railway semitrailer are put down to be supported, the tractor and the first highway-railway semitrailer are unhooked and pulled out, and the tractor is withdrawn;

3) pushing an end part bogie positioned at the tail part of the train set into the lower plane of the front end part of the frame of the first combined semitrailer, penetrating an end part connecting round pin, and connecting an end part connecting device positioned on the end part bogie at the tail part of the train set with an end part connecting seat at the front end of the first combined semitrailer;

4) placing a first knuckle bogie on a tail track of a first highway-railway dual-purpose semitrailer and centering, and using a tractor to pull a second highway-railway dual-purpose semitrailer to back up to one side of the first knuckle bogie, which is far away from the first highway-railway dual-purpose semitrailer;

5) the second highway-railway dual-purpose semitrailer is pulled by a tractor to continue backing up, the slope of the joint welding framework of the first joint bogie is climbed, and the first joint bogie is pushed to move along the direction of the first highway-railway dual-purpose semitrailer; until the rear end of a train set connecting and hanging plate of a first knuckle bogie train set connecting and hanging device is pushed to be inserted into a train set connecting and hanging seat at the tail part of a first rail-road semi-trailer frame, the front end of the train set connecting and hanging plate is inserted into a train set connecting and hanging seat at the tail part of a second rail-road semi-trailer frame, and train set connecting round pins respectively penetrate through the train set connecting and hanging plate and the corresponding train set connecting and hanging seat from bottom to top to complete the connecting and hanging marshalling of the tail part of the first rail-road semi-trailer and the tail part of the second rail-road semi-trailer;

6) putting down the landing legs of the second highway-railway dual-purpose semitrailer for landing and supporting, and unhooking and driving out the tractor and the second highway-railway dual-purpose semitrailer;

repeating the steps 4) to 6 by analogy, and finishing the grouping of the (N-1) joint bogie and the N highway-railway dual-purpose semitrailers;

7) pushing an end part bogie which is woven into the head of the train set into the lower plane of the front end part of the frame of the Nth combined semitrailer for the highway and railway, penetrating an end part connecting round pin, and carrying out coupling marshalling on an end part coupling device of the end part bogie positioned at the head of the train set and an end part coupling seat at the front end of the Nth combined semitrailer for the highway and railway to finish marshalling of the end part bogie positioned at the head of the train set and the Nth combined semitrailer for the highway and railway of the train set;

9) the locomotive is connected with a hook buffer device of an end bogie positioned at the head of the locomotive group to finish the marshalling of two end bogies, a (N-1) middle joint bogie and the locomotive group of N highway-railway dual-purpose semitrailers.

As described above, the present invention has at least the following advantages over the prior art:

1. the invention can realize that N road-rail dual-purpose semitrailers are marshalled into a group of railway carrying unit trains through the two end bogies and the (N-1) middle joint bogie, wherein the two end bogies, the middle joint bogie and the two road-rail dual-purpose semitrailers form a shortest transport vehicle group, the number of the road-rail dual-purpose semitrailers in the transport vehicle group can be increased or decreased according to the condition of a cargo source organization, the marshalling, connecting, disassembling and hanging-reducing of the road-rail dual-purpose semitrailer are convenient and flexible, the requirement of grouped operation of the cargo source railway transportation is met, the transportation performance is improved, the transportation energy loss is reduced to improve the transportation economy, and the advantage of long transportation distance and large transportation capacity of the railway is fully.

2. The invention can realize quick marshalling and coupling between the semitrailers for both highway and railway and quick marshalling and coupling between the semitrailer for both highway and railway and a railway locomotive or a railway wagon, so that a train set can run in a single train and can also run in marshalling with the railway wagon, thereby being beneficial to railway train organization; the rail-road semitrailer can be effectively connected and marshalled in two directions, the marshalling requirements of any two directions of the knuckle bogies and the rail-road semitrailer are met, the rail-road semitrailer can directly run on a highway after being unpackaged, the problems of 'the first kilometer' and 'the last kilometer' in railway freight transportation can be solved, the 'door-to-door' transportation of one vehicle to the bottom and integral loading and unloading is realized, the freight reversing frequency is reduced, and the comprehensive transportation benefit is improved.

3. The marshalling coupling structure of the rail-road transport vehicle set is simple, the traditional mode that a traditional railway wagon coupler coupling device or an auxiliary connecting device needs to be adopted in the transport vehicle set for marshalling coupling is cancelled, the internal traction coupling structure of the rail-road transport vehicle set is simplified, the technical problem that the dead weight of the transport vehicle set is heavy due to the fact that the marshalling coupling structure is complex is avoided, more importantly, the technical problems that the longitudinal force transmission of a train is uneven and the additional resistance is easily generated in the horizontal direction of the vehicle set due to the fact that the height of coupling centers of the coupler coupling device and the rail-road coupling device is not consistent can be effectively avoided, the operation safety of the train is improved, and the operation performance of the train can be effectively improved.

4. The coupling centers of the coupling sections of the train sets at the two ends of the train set coupling device are symmetrically arranged relative to the center of the train set coupling plate, the coupling centers at the two ends of the train set coupling plate are consistent in height, longitudinal force in the height direction is transmitted uniformly, additional resistance cannot be generated in the horizontal direction of the train set, the longitudinal force of a train can be transmitted in the train set without multiple gradient transfer in the height direction, the attenuation is small, and the train performance can be obviously improved; meanwhile, the clearance between the vehicles in the train is reduced, the number of vehicle marshalling is increased, and the train operation capacity and the transportation economy are improved; the device can effectively realize the arbitrary bidirectional coupling marshalling of the special bogie in the train set and the highway-railway dual-purpose semitrailer, improve the marshalling speed and facilitate the use and the management of the transport train set.

5. The invention provides a transport vehicle set formed by traction and coupling of an end coupling device and a vehicle set coupling device, which skillfully realizes that the direction of the longitudinal force of the vehicle set is always along the coupling point connection line, the end coupling device and the vehicle set coupling device are always positioned in the same horizontal direction with the coupling point of a highway-railway dual-purpose semitrailer, and the frame of the highway-railway dual-purpose semitrailer has the freedom degrees of swinging, nodding and rolling relative to a bogie by combining the design of a spherical hinge structure; the design of combining the elastic guide sleeve structure keeps the height of the center of the coupling consistent, the longitudinal force of the vehicle set is transmitted uniformly, no additional bending moment is generated in the height direction, the running performance of the vehicle set can be effectively improved, the snake-shaped motion of the road and railway dual-purpose vehicle set is inhibited, the composition and action principle of the coupling buffer coupling device are completely different from the mode of realizing that the vehicle set pulls the coupling through the vehicle coupler buffer coupling device or the auxiliary connecting device, the economic benefit of an enterprise can be obviously improved, and the coupling buffer coupling device is suitable for popularization and application.

Drawings

The invention will be described by way of specific embodiments and with reference to the accompanying drawings, in which

FIG. 1 is a front view of a shortest rail-road transport consist of an embodiment of the present invention;

FIG. 2 is a side view of an axle of the dual-purpose semitrailer for highway and railway applications in accordance with an embodiment of the present invention;

FIG. 3 is an isometric view of a knuckle bogie in an embodiment of the invention;

FIG. 4 is an isometric view of the hitch of the set hitch on the knuckle bogie in an embodiment of the present invention;

FIG. 5 is a sectional view of the train unit connecting and hanging device on the knuckle bogie in the embodiment of the invention along the longitudinal center of the train unit connecting and hanging plate;

FIG. 6 is a horizontal center sectional view of the set hitch on the knuckle bogie in an embodiment of the present invention along the set hitch mount;

FIG. 7 is an end bogie axonometric view of an embodiment of the invention;

FIG. 8 is an isometric view of an end truck upper end hitch coupling configuration in an embodiment of the present invention;

FIG. 9 is a cross-sectional view of the end hitch assembly of the upper end of the end truck of the embodiment of the present invention taken along the longitudinal center of the end hitch plate;

FIG. 10 is a horizontal center cross-sectional view of the end hitch upper end of the end truck along the end hitch mount in an embodiment of the present invention;

FIG. 11 is a flow diagram illustrating a grouping method in accordance with an embodiment of the present invention;

fig. 12 is a flow chart of a grouping method in a further embodiment of the present invention.

Description of reference numerals: 1-a highway and railway semitrailer; 11-a frame; 111-a front end beam; 112-centre sill; 113-a rear end beam; 12-a vehicle axle; 13-a guard; 14-a support means; 15-wheel axle air suspension means; 2-knuckle bogies; 21-knuckle welded frame; 211-knuckle truss stringers; 212-a joint frame ramp; 213-joint frame bearing table; 214-knuckle frame beam; 22-train set coupling device; 221-vehicle assembly hanging plates; 222-vehicle group connecting hanging seats; 223-the train set is connected with a round pin; 224-knuckle truss pin holes; 225-spherical hinge; 226-elastic guide sleeve; 227-a steering interface; 228-side wear plates; 23-fixing the mounting seat; 3-end bogie; 31-end welding of the frame; 311-end truss stringers; 312-end truss ramps; 313-end frame carrier; 314-end frame beams; 32-end coupling means; 321-connecting the end part with a hanging plate; 322-end part connecting with a hanging seat; 323-end connection round pin; 324-end connecting hanging seat pin holes; 33-coupler buffer device.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.