A middle movable frame of a double-layer automobile transport vehicle

Abstract

The present invention discloses a middle movable frame of a double-layer automobile transport vehicle. It includes a lower chassis and a bogie, a brake device and a coupler buffer device for realizing railway operation. The transport vehicle frame is a double-layer chassis structure, wherein the upper chassis at both ends of the vehicle body are detachable structures, the upper chassis in the middle of the vehicle body is a liftable structure, and the lower chassis longitudinal middle part forms a concave bottom structure for double-layer transportation and matches with the lowered middle upper chassis to form a single-layer vehicle body with a flat car structure for automobile or container package transportation. The middle upper chassis of the present invention adopts a liftable arrangement and matches the chassis structure, which can realize a large span arrangement of the upper chassis support device. When the middle upper chassis is lowered for single-layer transportation, the spacing of the chassis support devices is much larger than the length of the container, so that the middle part of the vehicle body is similar to an ordinary flat car, and the container transportation function is added. Other goods can be loaded through the container, avoiding empty vehicle return transportation and improving vehicle utilization.

Description

Technical Field

[0001] The invention belongs to the technical field of railway vehicle design and manufacturing, in particular to the technical field of design and manufacturing of integrated multifunctional transport vehicles, and particularly relates to an upper middle movable frame of a detachable automobile and container double-layer transport vehicle. Background Art

[0002] In recent years, my country's automobile industry has developed by leaps and bounds, and the volume of automobile transportation has increased year by year. In order to adapt to the market demand for automobile transportation and highlight their advantages in the fierce market competition to gain more market share, freight companies and logistics companies strive for low transportation costs and high transportation efficiency.

[0003] Domestic railway car transport vehicles have been booming in the vigorous growth of the car consumption market. Due to the use of an all-steel closed riveted structure, other goods cannot be loaded, resulting in most vehicles being sent back empty, and in the off-season, the vehicles can only be idle, occupying the line. Therefore, the vehicle utilization rate is low, the use cost increases, and the transportation capacity of the railway line is greatly wasted. In recent years, the country has vigorously promoted the development of multimodal transport, and multimodal transport is mainly based on container transportation. If the two can complement each other, the equipment efficiency can be maximized. Patent Publication No. CN 104802811 A discloses a special transport vehicle for car-container sharing. The vehicle can only be used to load one 40ft container by turning down through the middle movable chassis. The vehicle chassis length utilization rate is 50% lower than that of a flat car, and the economic benefit is not high. In addition, the side wall of the vehicle is high, and it is not easy to observe when loading the container, and it is easy to hit the side wall or the container, which is difficult to operate, which is not conducive to the promotion and application of dual-purpose vehicles.

[0004] Railways have various problems in the transportation process due to the transportation positioning and vehicle structure limitations of existing car transport vehicles. Therefore, it is necessary to design a new type of middle movable chassis and matching lifting device of a large-span dual-purpose car and container transport vehicle with exquisite structure, convenient operation and high transportation efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a middle movable frame of a double-layer automobile container transport vehicle. The present invention is used in conjunction with a car-container dual-purpose concave bottom transport vehicle, which can not only transport cars in double layers, but also load large cars, and can also transport containers with the full length of the bottom frame. The container is equipped with other goods, solving the problems of the existing railway transportation car special vehicle in the prior art, which has strong speciality, low utilization rate and high use cost.

[0006] The present invention is achieved through the following technical solutions:

[0007] The middle movable frame of the double-decker automobile transport vehicle includes a lower chassis and a bogie, a braking device and a coupler buffer device for realizing railway operation. It is characterized in that the transport vehicle frame is a double-layer chassis structure, wherein the upper chassis at both ends of the vehicle body are detachable structures, the upper chassis in the middle of the vehicle body is a liftable structure, and the lower chassis has a concave bottom structure in the longitudinal middle for double-layer transportation and matches with the lowered middle upper chassis to form a single-layer vehicle body with a flat car structure for whole-load transportation of automobiles or containers.

[0008] The middle upper frame is symmetrically arranged in two independent front and rear sections along the longitudinal direction of the transport vehicle, and each section has a lifting cylinder driving the lifting and flipping support system on both sides along the longitudinal direction of the transport vehicle; the lifting cylinder is fixed to the lower frame, and the driving piston is connected to the middle upper frame; the flipping support system includes a support arm that can be folded and flipped along the transverse direction of the transport vehicle, the bottom end of the support arm is hinged to the lower frame, and the top end can slide along the slide groove arranged laterally on the middle upper frame and be locked when the support is fixed.

[0009] The bottom end of the support arm is hinged to a hinge seat fixed on the lower frame through a rotating shaft arranged along the longitudinal direction of the transport vehicle, and the top end of the support arm slides in a slide rail arranged transversely along the middle upper frame through the two ends of a cylindrical slider arranged along the longitudinal direction of the transport vehicle. A transverse positioning seat plate is arranged on the outer side of the top end of the support arm for passing through a locking rod to lock and fix it with the middle upper frame.

[0010] Both sides of the bottom end of the support arm are provided with longitudinal fixed diagonal braces which can be folded and flipped synchronously with the support arm; the longitudinal fixed diagonal brace includes a diagonal brace lower mounting seat, a diagonal brace upper mounting seat and a diagonal brace connecting rod, and the lower end of the diagonal brace connecting rod is hinged to the diagonal brace lower mounting seat through an axis arranged along the longitudinal direction of the transport vehicle.

[0011] Furthermore, the middle upper chassis is composed of an upper side beam, a connecting beam at the outer end, a small cross beam and a small longitudinal beam arranged on the bottom surface, and a floor paved on the surface.

[0012] The middle upper chassis is also provided with a container corner piece mounting seat, a longitudinal positioning axle seat and a container locking device.

[0013] Fixed railings are arranged on both sides of the middle upper chassis.

[0014] The benefits of the invention: The middle upper chassis of the invention adopts a liftable arrangement and is used in conjunction with a car-container dual-purpose concave bottom transport vehicle, which solves the defect that existing vehicles can only transport cars, adds a container transportation function, and can load other goods through the container, avoiding empty vehicle return, improving vehicle utilization, reducing transportation costs for users, and having significant economic benefits.

[0015] The middle upper chassis of the present invention is used in conjunction with the chassis of the automobile-container dual-purpose concave bottom transport vehicle, which can realize the large span arrangement of the upper chassis support device. When the middle upper chassis is lowered for single-layer transportation, the spacing of the chassis support devices is much larger than the length of the container, making the middle part of the vehicle body similar to an ordinary flat car, which is convenient for loading containers; in addition, it can also meet the transportation of large vehicles and enrich the types of transport vehicles. In conjunction with the detachable end support device, the container loading function of the full chassis length can be realized, and the transportation capacity is the same as that of a flat car, avoiding empty vehicle return and off-season idleness, improving vehicle utilization, reducing use costs, and improving the transportation capacity of the railway line.

[0016] The lifting of the movable frame of the present invention is carried out in the form of pneumatic, hydraulic or electric gear rack, which reduces the labor intensity of the operator, saves effort, is safe and reliable. The present invention has a more reasonable structure and is safer and more stable in operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the entire structure of the transport vehicle of the present invention;

[0018] Figure 2 A schematic diagram of loading a transport vehicle and a car according to the present invention;

[0019] Figure 3 A schematic diagram of a large vehicle being loaded after the middle upper chassis of the present invention is lowered and the end side walls are dismantled;

[0020] Figure 4 Schematic diagram of container loading after the middle upper chassis of the present invention is lowered and the end side walls are dismantled;

[0021] Figure 5 Schematic diagram of the middle upper chassis and lifting system of the present invention;

[0022] Figure 6 Schematic diagram of the lifting system of the present invention;

[0023] Figure 7 A partially enlarged schematic diagram of the lifting system of the present invention.

[0024] In the figure, 1 is the middle upper chassis, 2 is the flip support system, 3 is the fixed railing, 4 is the lower chassis, 5 is the lifting cylinder, 6 is the container rotary lock, 7 is the support seat, 11 is the upper side beam, 12 is the connecting beam, 13 is the small cross beam, 14 is the small longitudinal beam, 15 is the container corner fitting mounting seat, 16 is the floor, 17 is the longitudinal positioning seat, 18 is the container locking device, 19 is the long hole, 22 is the support arm, 23 is the longitudinal fixed diagonal brace, 222 is the cylindrical slider, 223 is the transverse positioning seat plate, 224 is the longitudinal fixing device mounting seat composition, 225 is the slide guide rail, 231 is the diagonal brace lower mounting seat, 232 is the diagonal brace upper mounting seat, 233 is the diagonal brace connecting rod, 31 is the railing longitudinal beam, and 32 is the railing column. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies that are the same or similar to the present invention do not exceed the scope of protection of the present invention.

[0026] Combined with the attached pictures.

[0027] As shown in the figure, Figure 1 The transport vehicle body diagram of the movable chassis and lifting device of the present invention is as follows: Figure 1 The present invention is shown as a middle upper chassis 1, a lifting cylinder 5, a flip support system 2, a fixed railing 3, and a lower chassis 4; wherein: the middle upper chassis 1 and the lifting cylinder 5 are connected by pins, the middle upper chassis 1 and the flip support system 2 are supported by a connecting support seat, and the middle upper chassis 1 and the fixed railing 3 are connected by welding. Figure 2 , Figure 3 and Figure 4 Shown is a schematic diagram of the middle movable chassis and lifting device of a large-span automobile-collector dual-purpose transport vehicle and the loading of the automobile-collector dual-purpose transport vehicle.

[0028] like Figure 1 , Figure 5 As shown, the middle upper chassis 1 adopts a plate beam structure, which is composed of a large-section side beam 11, a connecting beam 12, a small cross beam 13, a small longitudinal beam 14, a container corner fitting mounting seat 15 and a steel floor 16 with a flanged long hole 19; an upper chassis movable chassis longitudinal positioning seat 17 and a container locking device 18 are provided. Long holes 19 are provided on the movable chassis floor 16 to avoid the mounting seat on the upper chassis support device in the center of the vehicle body, and a slide rail 225 is provided on the middle upper chassis 1. The middle upper chassis 1 at both ends of the vehicle body is vertically supported by a reversible support system 2. The structure of the middle upper chassis 1 and the lower chassis 4 is in a parallel concave bottom form, ensuring that after the hinge points of the upper chassis at both ends are moved outward, the height of the lower loading vehicle remains consistent with the existing vehicle. A fixed railing 3 is arranged within the length of the movable chassis, which is composed of a railing longitudinal beam 31 and a railing column 32 that follow the shape of the middle upper chassis 1. When loading a car, it protects the safety of the loading personnel and the loading process and prevents the car from rushing out of the upper chassis.

[0029] like Figure 5 , Figure 6 , Figure 7As shown, the middle upper chassis 1 is equipped with a special lifting system to realize the lifting of the chassis; it includes a lifting cylinder 5 to drive the lifting and tilting support system 2; the tilting support system 2 structural parts adopt a triangular self-stabilizing structure formed by a slide groove and a slider, and the bottom end of the support arm 22 is hinged to the longitudinal fixing device mounting seat 224 fixed on the lower chassis 4 through a rotating shaft arranged along the longitudinal direction of the transport vehicle, and the top end of the support arm 22 slides in the slide groove guide rail 225 arranged horizontally along the middle upper chassis 1 through the two ends of the cylindrical slider 222 arranged along the longitudinal direction of the transport vehicle, and a horizontal positioning seat plate 223 is arranged on the outer side of the top end of the support arm 22 for passing through a locking rod to lock and fix with the middle upper chassis 1. The bottom of the support arm 22 is provided with longitudinal fixed diagonal braces 23 which can be folded and turned synchronously with the support arm; the longitudinal fixed diagonal braces 23 include diagonal brace lower mounting seat 231, diagonal brace upper mounting seat 232 and diagonal brace connecting rod 233, and the lower end of the diagonal brace connecting rod 233 is hinged to the diagonal brace lower mounting seat 231 through an axis arranged along the longitudinal direction of the transport vehicle. The moving parts in the lifting device can be in the form of cylinders, oil cylinders, gear racks, etc. In this example, the oil cylinder is used as an example, and the stroke of the multi-stage oil cylinder is used to meet the middle movable chassis can be lowered to the mounting seat of the upper side beam of the chassis, meeting the loading requirements of 1AAA wide body high box. In the figure, the cylindrical slider 222 is automatically lifted and lowered during the lifting process of the middle upper chassis 1 by cooperating with the slide groove of the slide groove guide rail 225. After rising to the specified position, the upper chassis is fixed in the height direction through the horizontal positioning seat plate 223 and the middle upper chassis 1 pinned, ensuring the rigidity of the large-span upper chassis after loading. The longitudinal fixed diagonal brace 23 bears the longitudinal force of the middle movable underframe along the forward direction of the vehicle to provide stable and safe operation.

Claims

1. A middle movable frame of a double-deck automobile transport vehicle, comprising a lower chassis and a bogie, a brake device and a coupler buffer device for realizing railway operation, characterized in that: The transport vehicle frame is a double-layer chassis structure, in which the upper chassis at both ends of the vehicle body are detachable structures, the upper chassis in the middle of the vehicle body is a liftable structure, and the lower chassis has a concave bottom structure in the middle for double-layer transportation and matches the lowered middle upper chassis to form a single-layer vehicle body with a flat car structure for transporting cars or containers; The middle upper chassis is symmetrically arranged in two independent front and rear sections along the longitudinal direction of the transport vehicle, and each section has a lifting cylinder driving the lifting and flipping support system along both sides of the longitudinal direction of the transport vehicle; The lifting cylinder is fixed to the lower frame, and the driving piston is drivingly connected to the middle upper frame; The flip support system includes a support arm that can be folded and flipped laterally along the transport vehicle. The bottom end of the support arm is hinged to the lower chassis, and the top end can slide along a slide groove laterally arranged on the middle upper chassis and be locked and fixed when the support is fixed.

2. The middle movable frame of the double-deck automobile transport vehicle according to claim 1 is characterized in that: The bottom end of the support arm is hinged to a hinge seat fixed on the lower frame through a rotating shaft arranged along the longitudinal direction of the transport vehicle, and the top end of the support arm slides in a slide rail arranged transversely along the middle upper frame through the two ends of a cylindrical slider arranged along the longitudinal direction of the transport vehicle. A transverse positioning seat plate is arranged on the outer side of the top end of the support arm for passing through a locking rod to lock and fix it with the middle upper frame.

3. The middle movable frame of the double-deck automobile transport vehicle according to claim 2 is characterized in that: Both sides of the bottom end of the support arm are provided with longitudinal fixed diagonal braces which can be folded and flipped synchronously with the support arm; the longitudinal fixed diagonal brace includes a diagonal brace lower mounting seat, a diagonal brace upper mounting seat and a diagonal brace connecting rod, and the lower end of the diagonal brace connecting rod is hinged to the diagonal brace lower mounting seat through an axis arranged along the longitudinal direction of the transport vehicle.

4. The middle movable frame of the double-deck automobile transport vehicle according to any one of claims 1 to 3, characterized in that: The middle upper layer chassis is composed of upper side beams, connecting beams at the outer ends, small cross beams and small longitudinal beams arranged on the bottom surface, and floors paved on the surface.

5. The middle movable frame of the double-deck automobile transport vehicle according to claim 4 is characterized in that: The middle upper chassis is also provided with a container corner piece mounting seat, a longitudinal positioning axle seat and a container locking device.

6. The middle movable frame of the double-deck automobile transport vehicle according to claim 4 is characterized in that: Fixed railings are arranged on both sides of the middle upper chassis.

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