CN201161588Y - Flat car for railway container - Google Patents

Abstract

A special flat car for railway containers, including a car body steel structure with fishbone-type equal-strength structure without side beams, a container locking device, a brake device, a bogie and a coupler buffer device; the car body steel structure includes an end beam and a corbel , middle sill, large crossbeam and small crossbeam; the middle sill adopts a fish-belly variable cross-section structure; In the middle part of the longitudinal direction, the end beams are located at both ends of the middle beam, and the two corbels are close to the inside of the end beams at both ends. Between the two corbels, the small crossbeam is located between the large crossbeam and the corbel, and a safety fence design structure is installed on both sides parallel to the middle beam. The utility model adopts lightweight design, reasonable structure and good performance, which is much better than similar models.

Description

Flat car for railway container

technical field

The utility model relates to a flat car for railway freight, in particular to a special flat car for railway containers.

Background technique

As an advanced and standardized mode of transportation, container transportation has developed greatly at home and abroad since it came out in the early 20th century. Developed countries such as the United States, Canada, Australia and other countries have successively developed railway container transportation, basically adopting the form of special container trains. At present, for large-scale cargo such as containers, railway transportation mostly uses flat cars. In order to carry the weight of the container, the bottom beam of the flat car adopts the structure of the middle beam, the side beam and multiple sets of beams for load-bearing support, resulting in a large body weight and a high self-weight coefficient, which limits the weight of the container it carries. , which affects the efficiency of shipment and increases the cost of container freight transportation.

Utility model content

The purpose of the utility model is to provide a special flat car for railway containers with small self-weight, large carrying capacity and high self-weight coefficient.

The purpose of this utility model is achieved by implementing the following technical solutions:

A special flat car for railway containers, including a car body steel structure, a container locking device, a braking device and a bogie, characterized in that: the car body steel structure includes an end beam, a corbel, a middle beam, a large beam and a small beam; The center sill is located in the middle of the longitudinal direction of the car body, the end beams are located at both ends of the center sill, the two corbels are close to the inside of the end beams at both ends, the longitudinal beams are parallel to both sides of the center sill, and are located between the end beams and the corbels. The two large crossbeams are located between the two corbels, the small crossbeam is located between the large crossbeam and the corbel, and safety guardrails are installed on both sides parallel to the middle beam.

The steel structure of the whole car body adopts a fishbone-shaped structure with the center beam as the main bone, and the end beams, corbel beams, large beams, and small beams are distributed on both sides of the center beam; the center beam is narrow and thin at both ends and wide and wide in the middle. Thick fish-belly structure with variable cross-section, end beam, corbel, large beam and small beam adopt variable cross-section double-web box girder structure.

In the container locking device, a fully automatic twist lock is used.

The vented angled plugs are used in the braking system.

130A type brake valve is used in the brake device.

The bogie adopts the sub-frame radial bogie with self-guiding function.

The structure of the utility model is optimized, adopting a fishbone-type structure without side beams, the middle beam adopts a fish-belly structure, and each beam adopts a variable-section double-web box-shaped beam structure; the design structure considers no stress concentration area , the stress gradient is small; the lightweight design is applied to reduce the weight of the vehicle. The self-weight of the vehicle is less than 20 tons, while the load reaches 72 tons, and the self-weight coefficient is less than 0.28, which is much better than the current domestic similar models. The container locking device, especially the container automatic twist lock that can be automatically loaded and unloaded and tightened, does not require manual operation, which greatly improves the operating efficiency and safety and reliability of container loading and unloading. The air-exhausting angled plug door is adopted. When the angled plug door is closed, the pressure air in the inter-vehicle connecting hose will be automatically discharged, which can avoid the possible personal injury accident caused by the hose bounce caused by the sudden discharge of the pressure air in the hose. Arranging guardrails between the corbels can prevent pedestrians from approaching, and setting safety guardrails on both sides of the corbels can prevent workers from being scratched and bruised by corners when they are repaired and maintained. The 130A type control valve is used in the brake device, which is an improved type of the 120 type control valve for general trucks in my country. This valve integrates the adjustment valve for empty and heavy trucks, and is installed with a manual pressure maintenance valve, which can adapt to braking on long and large ramps. Parking use. The flat car has reasonable design and good performance, and can be widely used in container transportation for railway freight.

Description of drawings

Fig. 1 is a schematic diagram of the use state of three 20' standard containers of the utility model.

Fig. 2 is a schematic diagram of the use state of the utility model carrying one 40' and one 20' standard container.

Fig. 3 is a schematic diagram of the usage state of one 40' and one 48' standard container of the utility model.

Fig. 4 is a top view of the utility model.

Fig. 5 is a front view of the steel structure of the vehicle body.

Figure 6 is a top view of the steel structure of the vehicle body.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further elaborated:

Referring to FIGS. 1-6 , the utility model includes a coupler buffer device 1 , a bogie 2 , a car body steel structure 3 , a container locking device 4 and a braking device 5 .

The steel structure of the vehicle body includes an end beam 11 , a corbel 12 , a middle beam 13 , a large crossbeam 14 and a small crossbeam 15 . The longitudinal beam 21 is parallel to both sides of the middle beam 11 and is located between the end beam 11 and the corbel 12 . The end beams 11 are located at both ends of the center beam 13, the two large beams 14 are located between the two corbels 12, the small beam 15 is located between the large beams 14 and the corbels 12, and safety protection is installed on both sides parallel to the center beam. Column 16. The two ends of the bolster are installed with arc-shaped transitional crash barriers 22 to prevent the staff from being hurt by the car body when overhauling or observing the bogie. A container anti-theft device 23 is respectively installed at both ends of the center beam 13 . The middle beam 13 adopts a weather-resistant steel plate with a yield strength of 345MPa and welds it into a variable-section fish-belly structure; the end beam 11, corbel 12, large beam 14, and small beam 15 are double-web box-shaped variable-section structures.

The main profiles and plates of the above-mentioned car body steel structure are high-strength atmospheric corrosion-resistant steel Q345GNHL approved by the document No. [2003] No.

Twelve sets of container locking devices 4 are arranged on the underframe, and full-automatic container twist locks are adopted. When loading containers, the automatic twist locks will automatically lock the containers without any operation on the twist locks.

The air brake device adopts the 130 type air brake system, mainly including the 130A type control valve, the manual pressure maintaining valve suitable for braking on long and large slopes, the automatic empty-load vehicle adjustment device, and the 10-inch spinning sealed brake cylinder. Two-way brake shoe clearance automatic adjuster, exhaust type corner plug, hose connector, auxiliary air cylinder, working air cylinder, branch pipe cut-off plug, stainless steel brake piping, flange joints, high-grinding synthetic brake shoes, etc. The braking rate meets the RSU standard, the braking rate of empty vehicles is less than 35%, and the braking rate of heavy vehicles is greater than 13%.

The hand brake is installed at the end of the car body, and the FSW type vertical wheel chain transmission hand brake is adopted.

The sub-frame bogie is a 25t axle load sub-frame radial bogie. The axle box suspension is composed of rubber pads, which realize the elastic positioning between the side frame and the wheel set, effectively reduce the unsprung mass, improve the action force between the wheel and rail and the running quality of the vehicle.

The container special flat car of the utility model adopts the sub-frame radial bogie with excellent self-guiding performance, imported rolling bearings and container automatic twist lock; adopts air brake system; FSW type hand brake; conforms to AAR 10-A Automatic coupler and high-capacity buffer that connects to the profile. The steel structure of the entire car body adopts a fishbone structure, the middle beam adopts a fish-belly variable-section structure, and each beam adopts a double-web box-shaped beam structure with a variable cross-section. The stress gradient is reduced and the weight of the vehicle is reduced, so that the whole vehicle has a self-weight of less than 20 tons, while the load reaches 72 tons, and the self-weight coefficient is less than 0.28, which is much better than the current domestic similar models. It can transport 20-foot, 40-foot, 45-foot and 48-foot containers; the maximum load is 72t, the axle load is 23t; the designed commercial operating speed is 115km/h.

Claims (6)

1. A special flat car for railway containers, comprising car body steel structure (3), container locking device (4), braking device (5), bogie (2) and coupler buffer device (1), characterized in that The steel structure of the car body includes end beams (11), corbels (12), middle beams (13), large beams (14) and small beams (15); the middle beams (13) are located in the middle of the car body in the longitudinal direction, The end beams (11) are located at both ends of the middle beam, two corbels (12) are close to the inside of the end beams at both ends, the longitudinal beams (21) are parallel to both sides of the middle beam, and are located between the end beams and the corbels, two Large crossbeam (14) is positioned between two corbels, and small crossbeam (15) is positioned between large crossbeam and corbel, and safety fence (16) is installed on both sides parallel to middle beam. 2. The special flat car for railway containers according to claim 1, characterized in that the steel structure of the whole car body adopts the center beam (13) as the main bone, the end beam (11), the corbel (12), the large beam ( 14), the small beam (15) is distributed on both sides of the middle beam; the middle beam adopts a variable cross-section structure with narrow and thin ends and a wide and thick middle Double-web box girder structure with variable cross-section. 3. The special flat car for container transportation according to claim 2, characterized in that the container locking device (4) uses a fully automatic twist lock. 4. The special flat car for railway containers according to claim 3, characterized in that the braking device (5) adopts an exhaust type corner plug. 5. The special flat car for railway containers according to claim 4, characterized in that the brake device (5) uses a 130A brake valve. 6. The special flat car for railway containers according to claim 5, characterized in that the bogie adopts a sub-frame radial bogie (2) with self-guiding function.

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