CN112026823A - 150t depressed center flat car and long and large goods car marshalling - Google Patents
150t depressed center flat car and long and large goods car marshalling Download PDFInfo
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- CN112026823A CN112026823A CN202010873096.8A CN202010873096A CN112026823A CN 112026823 A CN112026823 A CN 112026823A CN 202010873096 A CN202010873096 A CN 202010873096A CN 112026823 A CN112026823 A CN 112026823A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/14—Side bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B1/00—General arrangement of stations, platforms, or sidings; Railway networks; Rail vehicle marshalling systems
- B61B1/005—Rail vehicle marshalling systems; Rail freight terminals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
- B61C17/12—Control gear; Arrangements for controlling locomotives from remote points in the train or when operating in multiple units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F1/00—Underframes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
- B61F5/52—Bogie frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
- B61H11/08—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes comprising a pump or the like circulating fluid, braking being effected by throttling of the circulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
- B61H11/10—Aerodynamic brakes with control flaps, e.g. spoilers, attached to the vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Engineering & Computer Science (AREA)
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a marshalling of a 150t concave flat car and a long and large freight car, which solves the problems of high manufacturing and maintenance cost and low integration level of a braking system of the conventional 150t load concave flat car. The 150t concave bottom flat car comprises an underframe assembly, a bogie, a wind braking device, a hand braking device and a car coupler buffer device, wherein a DAB type integrated braking device is integrated on the bogie, and a brake cylinder and a brake lever of the wind braking device are integrated in the DAB type integrated braking device. According to the 150t concave bottom flat car and the large and large cargo car marshalling, due to the fact that the bogie integrated with the DAB type integrated brake device is adopted, the dead weight of the car is reduced, the loading capacity of the car is increased, the running stability of the car is improved, and the operation income is improved.
Description
Technical Field
The application belongs to the technical field of railway long and large cargo vehicles, and particularly relates to a 150t depressed center flat car and a long and large cargo vehicle marshalling.
Background
The long and large goods vehicle is a special vehicle used in railway transportation and is used for loading and transporting long and large goods which can not be loaded and transported by a general truck. According to different vehicle body structure types, the existing long and large cargo vehicles in China can be divided into depressed center flat vehicles, long and large flat vehicles, drop hole vehicles, clamp vehicles and the like.
China develops a railway depressed center flat car from the last 70 th century, and the main car types are as follows: d10, D10A, D15, D15A, D15B, D26, D26A, D28, D32, D32A, D37D, and the like. The depressed center flat car with the load of 150t has three types of cars, D15, D15A and D15B.
The existing three-model 150t load-carrying concave bottom flat car adopts a welded framework type bogie, a traditional basic braking device and a chain type hand brake, wherein the basic braking device consists of a series of transmission levers, a brake beam and a brake shoe (or a brake shoe and a brake disc). The method has the defects of poor capability of adapting to the line distortion, high requirement on manufacturing precision, high manufacturing cost and maintenance cost and low braking efficiency.
Disclosure of Invention
In order to solve the technical problems, the invention provides a 150t depressed center flat car and a large and large goods car marshalling, which solves the problems of high manufacturing and maintenance costs and low integration level of a braking system of the existing 150t depressed center flat car.
The technical scheme adopted for achieving the purpose of the invention is that the 150t depressed center flat car comprises an underframe assembly, a bogie, a wind braking device, a hand braking device and a car coupler buffer device, wherein the bogie, the wind braking device, the hand braking device and the car coupler buffer device are arranged on the underframe assembly, a DAB type integrated braking device is integrated on the bogie, and a brake cylinder and a brake lever of the wind braking device are integrated in the DAB type integrated braking device.
Optionally, the bogie is a three-piece bogie.
Optionally, the three-piece bogie is a K-turn 5 type bogie or a K-turn 6 type bogie.
Optionally, the K5 type bogie that changes includes that two wheel sets constitute, two side bearer constitutions, damping device, bolster constitute DAB type integrated brake equipment, rolling bearing device, elasticity side bearing, bearing spring group and spring supporting plate constitute, wherein:
the swing bolster assembly and the two side frame assemblies are connected through the bearing spring group, the whole swing bolster assembly and the two side frame assemblies are I-shaped, and the bearing spring group is connected with the side frame assemblies through the spring supporting plate assembly; the vibration damper is arranged at the joint of the swing bolster assembly and the two side frames;
the two wheel sets are distributed on two sides of the swing bolster assembly, and two ends of each wheel set assembly are respectively connected with the two side frame assemblies through the rolling bearing devices;
the DAB type integrated brake device is arranged in the swing bolster assembly; the elastic side bearings are arranged on the swing bolster assembly and distributed on two sides of a center plate formed by the swing bolster.
Optionally, the K5-type bogie further comprises a monitoring device, and the monitoring device comprises an axle temperature monitoring device.
Optionally, the monitoring device further includes a self-generating device for supplying power to the shaft temperature monitoring device, the self-generating device is a shaft end generating device and/or a vibration generating device, the shaft end generating device is mounted on the rolling bearing device, and the vibration generating device is mounted at a joint between the bolster assembly and the two side frames.
Optionally, the DAB type integrated brake device includes the brake cylinder, two the brake levers, two brake beams and four brake shoes, wherein:
the brake cylinder penetrates through a mounting hole formed in the middle of the swing bolster assembly, and two ends of the brake cylinder are hinged to the middle of the two brake levers respectively;
the two brake levers are arranged in parallel, one end of each brake lever is hinged with a fixed fulcrum seat arranged on the swing bolster assembly, and the other end of each brake lever is hinged with the brake beam;
the two brake beams are respectively arranged below the two brake levers; the four brake shoes are respectively arranged at two ends of the two brake beams;
the DAB type integrated brake device is selectively provided with a hand brake pull rod, and the hand brake device is connected with the DAB type integrated brake device through the hand brake pull rod.
Optionally, the air brake device includes an air control valve, an air reservoir, a combined dust collector, a cock, and a pressure release valve, wherein:
the air cylinder, the air control valve and the pressure release valve are communicated through an air pipe, the pressure release valve is connected into the brake cylinder through a communication pipe,
the combined dust collector and the cock are both arranged on the air pipe.
Optionally, the K5-type bogie further comprises a cross beam assembly, wherein the cross beam assembly is parallel to the bolster assembly, and two ends of the cross beam assembly are respectively connected with the two side frame assemblies;
the wind braking device further comprises an automatic empty-load vehicle adjusting device, the automatic empty-load vehicle adjusting device is installed on the wind pipe, and a contact of the automatic empty-load vehicle adjusting device is connected with a contact plate formed by the cross beam.
Optionally, the bottom frame assembly comprises a concave bottom frame and two small bottom frames, the two small bottom frames are respectively arranged below two ends of the concave bottom frame, one end of each small bottom frame extends into the position below an end arm of the concave bottom frame and is connected with the end arm, and the other end of each small bottom frame extends out of the concave bottom frame;
the bogie is provided with 4, and 4 the bogie is installed respectively in two the below of little chassis.
Based on the same inventive concept, the invention also provides a large and large freight car marshalling, which comprises a locomotive, at least 1 isolation car, at least 1 large and large freight car, at least 1 isolation car and a worker operation car which are sequentially connected; at least one of the large and large cargo vehicles is the 150t depressed center flat car.
Optionally, be provided with on-vehicle intelligent security monitoring and information transmission system on the goods car of growing up, on-vehicle intelligent security monitoring and information transmission system includes:
the video monitoring system is used for monitoring the appearance of the marshalling of the long and large goods vehicles and the goods carried by the marshalling in real time;
the cargo parameter monitoring system is used for monitoring the special parameters of the cargo in real time;
the bogie shaft temperature monitoring system is used for monitoring the bearing temperature of a bogie in the long and large freight car grouping in real time;
and the centralized display platform is used for displaying the signals generated by the video monitoring system, the cargo parameter monitoring system and the bogie axle temperature monitoring system in real time and transmitting the data to a monitoring center of a user.
Optionally, the video monitoring system includes front and rear end vehicle-mounted cameras, a vehicle-mounted video monitoring host, a vehicle-mounted video display, and a video transmission line; the front and rear end vehicle-mounted cameras monitor vehicles and goods transported by the vehicles in real time, the front and rear end vehicle-mounted cameras are connected with a vehicle-mounted video monitoring host through video transmission lines, the vehicle-mounted video monitoring host can store video images in a certain time period, and the vehicle-mounted video monitoring host is connected with the vehicle-mounted video display through the video transmission lines.
Optionally, the cargo parameter monitoring system includes a cargo parameter detection sensor, a signal transmission network, a terminal server and a terminal display; the cargo parameter detection sensor is arranged on the cargo and is connected with the signal transmission network through an electric connector; and the signal transmission network transmits the cargo parameter signal to the terminal server and displays cargo parameter data through the terminal display.
Optionally, the bogie axle temperature monitoring system comprises a temperature sensor, an axle temperature converter, an axle temperature processor and an axle temperature host; the temperature sensor is arranged on an axle box of the bogie and detects the temperature of a bearing through a probe of the temperature sensor, and the temperature sensor transmits a temperature signal to the axle temperature converter; the shaft temperature converter transmits a temperature signal to the shaft temperature processor; the shaft temperature processor transmits a temperature signal to the shaft temperature host; the shaft temperature host is used for displaying the temperature of each bearing in turn, and automatically popping up the temperature of the bearing and giving an alarm when the temperature of the bearing exceeds a normal value.
Optionally, the worker operating vehicle comprises a escort vehicle and a sleeper vehicle which are connected, and the centralized display platform is mounted on the escort vehicle;
the host computer and/or the display of the video monitoring system, the cargo parameter monitoring system and the bogie axle temperature monitoring system are integrated on the centralized display platform;
the centralized display platform is also integrated with an alarm, a leakage protector, a power supply alternating current power supply wired plug, a socket for connecting the front and rear end vehicle-mounted camera jumper cable plugs and a socket for connecting the jumper cable plug of the main transmission line;
the centralized display platform is internally provided with a wireless network module which is used for transmitting the data displayed by the centralized display platform to a monitoring center of a user through a wireless network.
According to the technical scheme, the 150t depressed center flat car provided by the invention has the advantages that the overall structural configuration is kept unchanged, the 150t depressed center flat car comprises an underframe assembly, a bogie, a wind braking device, a hand braking device and a car coupler buffering device, and the 150t depressed center flat car is different from the prior art, and a DAB type integrated braking device is integrated on the bogie to replace an original basic braking device. Compared with the traditional basic braking device, the DAB type integrated braking device has the advantages that the transmission efficiency is up to more than 80%, the matched auxiliary air cylinder has small volume, the braking air consumption can be reduced by 20-30%, larger braking force can be obtained under the same braking driving condition, and the running safety of a train on a long and large downhill path can be improved. Meanwhile, a large amount of space is reserved for the vehicle body during the design of the whole structure, and the optimization of the vehicle body structure is facilitated.
Because of the DAB type integrated brake device, the structure of the wind brake device can be simplified. The conventional wind brake device comprises an air distribution valve, an auxiliary reservoir, a brake cylinder, a brake lever, a brake pull rod and the like, wherein when a brake pipe is decompressed, the air distribution valve enables compressed air in the auxiliary reservoir to enter the brake cylinder to push a piston, and a brake shoe (or a brake pad) is pressed against a wheel tread (or a brake disc) through the action of the brake lever and the brake pull rod. According to the invention, the DAB integrated brake device is integrated on the bogie, the brake cylinder and the brake lever of the wind brake device can be integrated in the DAB integrated brake device, namely, the wind pipe of the wind brake device is directly connected to the brake cylinder of the DAB integrated brake device, and the brake cylinder and the brake lever are integrated in the DAB integrated brake device, so that the brake force transmission distance is shortened, and the brake pull rod in the traditional wind brake device can be cancelled. Because the wind braking device reduces parts such as a brake cylinder, a brake lever, a brake pull rod and the like, the corresponding installation of stress chassis accessories (generally welding installation, and welding has adverse effect on a chassis structure) is correspondingly cancelled, the braking structure is simplified, the braking transmission efficiency is improved, and the problems of large energy consumption, difficult organization and assembly, complex process, part crack fault and the like caused by multiple pieces of production are avoided, so that the manufacturing cost of the whole vehicle is reduced, the manufacturing time is shortened, and the vehicle fault rate is reduced.
On the other hand, because the DAB type integrated brake device is integrated on the bogie, the center of gravity of the whole vehicle moves downwards, and the stability is higher. When the 150t concave bottom flat car is used as a long and large goods car for train marshalling, compared with the prior art, the whole train marshalling bearing capacity and the train operation stability are improved.
Compared with the prior art, the 150t depressed center flat car and the large and large goods car marshalling provided by the invention have the advantages that the dead weight of the car is reduced, the loading capacity of the car is increased, the running stability of the car is improved and the operation income is improved due to the adoption of the bogie integrated with the DAB type integrated brake device.
Drawings
FIG. 1 is a schematic structural view of a 150t depressed center flat car in embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of the truck of FIG. 1;
FIG. 3 is a schematic structural view of the DAB type integrated brake apparatus of FIG. 2;
fig. 4 is a schematic view of the structure of the wind braking device of fig. 1.
Fig. 5 is a block diagram of a configuration of a long and large freight car consist in embodiment 2 of the present invention;
fig. 6 is an additional schematic block diagram of the vehicle-mounted intelligent security monitoring and information transmission system in embodiment 2 of the present invention;
FIG. 7 is a functional block diagram of the bogie axle temperature monitoring system of FIG. 6.
Detailed Description
In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.
The 150t depressed center flat car of prior art has following technical problem: the existing 150t depressed center flat car adopts a welding framework type bogie, a traditional foundation brake device and a chain type hand brake. Compared with a three-piece bogie, the welding framework type bogie has the advantages that the capacity of adapting to line distortion is poor, the requirement on manufacturing precision is high, and the manufacturing cost and the maintenance cost are high; the traditional foundation brake device has the advantages of complex structure, high energy consumption, difficult assembly, high overhaul cost, low integration degree and low efficiency; the chain type hand brake has low braking efficiency.
In order to solve the technical problems, the overall concept of the invention is as follows:
the invention provides a 150t depressed center flat car, which has the same whole structure configuration and comprises an underframe assembly, a bogie, a wind braking device, a hand braking device and a car coupler buffering device, wherein a DAB type integrated braking device is integrated on the bogie to replace the original basic braking device. Compared with the traditional basic braking device, the DAB type integrated braking device has high transmission efficiency and less braking wind consumption, and can improve the running safety of the train on long and large downhill slopes. Meanwhile, a large amount of space is reserved for the vehicle body during the design of the whole structure, and the optimization of the vehicle body structure is facilitated. Because of the DAB type integrated brake device, the structure of the wind brake device can be simplified. The brake cylinder and the brake lever of the wind brake device can be integrated in the DAB type integrated brake device, namely, the wind pipe of the wind brake device is directly connected into the brake cylinder of the DAB type integrated brake device. The wind braking device reduces parts such as a brake cylinder, a brake lever and the like, reduces the installation of stress underframe accessories, simplifies the braking structure, improves the braking transmission efficiency, reduces the crack fault of the parts, and avoids the problems of large energy consumption, difficult organization and assembly, complex process and the like caused by the production of a plurality of parts, thereby reducing the manufacturing cost of the whole vehicle, shortening the manufacturing time and reducing the fault rate of the vehicle.
The invention is described in detail below with reference to an exemplary embodiment:
example 1:
the embodiment of the invention provides a 150t depressed center flat car which is structurally shown in figure 1 and comprises an underframe assembly, a bogie C, a wind braking device D, a hand braking device E and a car coupler buffering device F, wherein the bogie C, the wind braking device D, the hand braking device E and the car coupler buffering device F are arranged on the underframe assembly. The chassis assembly can directly adopt a concave chassis, or two ends of the concave chassis are respectively provided with a small chassis, and the invention does not improve the framework of the chassis, so the invention does not limit the specific structure of the chassis assembly.
Referring to fig. 1, in this embodiment, the bottom frame assembly includes a concave bottom frame a and two small bottom frames B, the two small bottom frames B are disposed below two ends of the concave bottom frame a, that is, one end of the small bottom frame B extends below an end arm of the concave bottom frame a and is connected with the end arm, and the other end of the small bottom frame B extends outside the concave bottom frame a. In consideration of the load of the vehicle, 4 bogies C are provided, and the 4 bogies C are respectively installed below the two small undercarriages B, namely, an eight-axle load structure is adopted. The corresponding hand braking device E and the corresponding car coupler buffer device F are respectively provided with 2 sets, wherein one set is arranged at the front end of the concave underframe A, and the other set is arranged at the rear end of the concave underframe A. The wind braking device D is provided with 1 set, and 1 set of wind braking device D includes two wind braking units that the structure is the same, and two wind braking units set up both ends around concave chassis A respectively to it is continuous through the tuber pipe that runs through concave chassis A.
Referring to fig. 2, a DAB integrated brake device is integrated on the bogie C, and a brake cylinder and a brake lever of the air brake device are integrated in the DAB integrated brake device, i.e., parts such as the brake cylinder, the brake lever and the brake pull rod are not arranged in the two air brake units, and an air pipe of the air brake device D is directly connected into the brake cylinder of the DAB integrated brake device. The braking structure can be applied to any type of existing bogie, and the specific structure of the bogie is not limited by the invention.
Specifically, the bogie C in this embodiment is a three-piece bogie, and two three-piece bogies, i.e., a K5-turning bogie or a K6-turning bogie, may be adopted, and the K5-turning bogie is specifically adopted in this embodiment. Compared with the welding framework type bogie adopted by the existing 150t depressed center flat car, the bogie C of the rotary K5 type belongs to a three-piece bogie, and has the advantages of good uniform load performance and transverse movement performance, high universality and low manufacturing and maintenance cost.
Referring to fig. 2, the bogie of the rotary K5 type includes two wheel sets C1, two side frames C2, a vibration damper C3 (four), a bolster C4, a DAB type integrated brake C5, a rolling bearing C6 (four), an elastic side bearing C7 (two), two groups of load bearing spring groups C10 and a spring support plate C8. The swing bolster component C4 and the two side frame components C2 are connected through two groups of bearing spring groups C10 and spring supporting plates C8, the whole is I-shaped, the two groups of bearing spring groups C10 are respectively installed on the two side frame components C2 through the integral spring supporting plate component C8, each group of bearing spring groups C10 comprises a plurality of bearing springs, the load of the swing bolster component C4 is sequentially transmitted to the two side frame components C2 and the two wheel pair components C1 through the two groups of bearing spring groups C10. The two end side surfaces of the bolster assembly C4 and the two side surfaces of the central frame of the side frame assembly C2 are respectively provided with a damping device C3, and the damping device C3 in the embodiment comprises a two-stage stiffness spiral spring and a wedge type variable friction damper. The two wheel set assemblies C1 are distributed on two sides of the bolster assembly C4, and two ends of each wheel set assembly C1 are respectively connected with the two side frame assemblies C2 through rolling bearing devices C6. The DAB type integrated brake device C5 is installed in a swing bolster assembly C4, specifically installed in a mounting hole C4-1 formed in the middle of a swing bolster assembly C4 and hinged with a fixed fulcrum seat C4-3 arranged on the swing bolster assembly C4. The elastic side bearings C7 are arranged on the swing bolster assembly C4 and are distributed on two sides of a center plate C4-2 of the swing bolster assembly C4.
As an expansion, a cross beam component C9 can be further arranged on the K5 type bogie, a cross beam component C9 is parallel to a swing bolster component C4, two ends of the cross beam component C4 are respectively connected with two side frame components C2, a touch panel C9-1 is arranged in the middle of a cross beam component C9, and the touch panel C9-1 is used for being in contact with a contact of an automatic empty and heavy vehicle adjusting device so as to measure the loading condition of a vehicle.
In addition, the K5 type bogie of changeing of this embodiment still includes monitoring device C11, and monitoring device C11 includes axle temperature monitoring devices, and axle temperature monitoring devices is arranged in the temperature of real-time supervision antifriction bearing device C6 well bearing, and this axle temperature monitoring devices can adopt on the whole other consumer external power supplies, also can adopt the self-generating electricity, and this embodiment adopts the self-generating electricity to supply power.
Specifically, referring to fig. 2, in the bogie of the K5-turn model according to the present embodiment, the monitoring device further includes a self-generating device for supplying power to the axle temperature monitoring device, the self-generating device is an axle end generating device and/or a vibration generating device, and the present embodiment uses the axle end generating device and the vibration generating device to supply power together. Referring to fig. 2 specifically, an axle end power generation device (an axle end generator) is mounted on a rolling bearing device C6, the axle end generator is a modular product and has universality by combining structural characteristics of domestic truck main type bogies K5 and K6 and considering the difference of the structures of K5 and K6, a motor support is designed to be suitable for a K5 bearing saddle and a K6 bearing saddle, a C1 axle formed by bogie wheel pairs rotates to drive a motor shaft and a rotor to rotate, magnetic lines of force are cut by using an electromagnetic induction principle to obtain three alternating current outputs, and a self-powered system is formed by converting, power supply control, charge and discharge control and an energy storage battery to realize power supply to a load. The vibration power generation device is arranged at the joint of a swing bolster component C4 and a side frame component C2, namely a central spring suspension part, and is specifically positioned at the end part of a swing bolster component C4 and a spring supporting plate component C8, the upper part of the vibration power generation device is connected with a mounting seat on the swing bolster component C4, and the lower part of the vibration power generation device is connected with a mounting seat on the spring supporting plate component C8, so that the vibration of a spring is converted into the rotation (rotating magnetic field) motion of a rotor in the power generation device, and the purpose of converting the vibration energy storage of a vehicle body into electric.
The DAB type integrated braking device C5 is used for carrying out friction braking on four wheels forming a C1 wheel pair, and compared with the traditional basic braking device adopted by the existing 150t concave bottom flat car, the DAB type integrated braking device C5 is simple and compact in structure, high in integration degree, light in weight, high in transmission efficiency, easy to assemble and superior in technical performance. And more wearing parts are eliminated, so that the cost and the workload for checking, replacing or repairing the wearing parts to the limit are reduced, the maintenance cost is reduced, the overhaul time is shortened, and the turnover rate of the vehicle is accelerated. The specific structure of the DAB type integrated brake C5 is as follows:
referring to fig. 3, the DAB type integrated brake apparatus C5 includes a brake cylinder C5-2, two brake levers C5-1, two brake beams C5-3/4 and four brake shoes C5-6. The brake cylinder C5-2 adopts a DAB unit brake cylinder, and the brake cylinder C5-2 penetrates through a mounting hole C4-1 formed in the middle of the bolster assembly C4, as shown in FIG. 2. Two ends of the brake cylinder C5-2 are respectively hinged with the middle parts of two brake levers C5-1, the two brake levers C5-1 are arranged in parallel, one end of the brake lever C5-1 is hinged with a fixed fulcrum seat C4-3 arranged on a swing bolster component C4 through a chain shoe ring C5-5, and the other end of the brake lever C5-1 is hinged with a brake beam. The two brake beams are respectively an L-B1 type right combined brake beam C5-3 and an L-B1 type left combined brake beam C5-4, and an L-B1 type right combined brake beam C5-3 and an L-B1 type left combined brake beam C5-4 are respectively arranged below the brake lever C5-1 positioned on the same side; four brake shoes C5-6 are respectively arranged at two ends of a right combined brake beam C5-3 of an L-B1 model and a left combined brake beam C5-4 of an L-B1 model.
In the four DAB integrated brake devices C5 of the 150t depressed center flat car, 2 DAB integrated brake devices C5 positioned at the outer side are respectively connected with 2 hand brake devices E, and the 2 DAB integrated brake devices C5 positioned at the outer side are provided with hand brake pull rods C5-7 besides the composition structure. Hand brake pull rod C5-7 is located at one end of brake cylinder C5-2 as shown in FIG. 3. The DAB integrated brake C5 is connected with the hand brake E through a hand brake pull rod C5-7. In a depressed center flat car without the DAB integrated brake, the hand brake lever C5-7 is disposed in the hand brake. The 2 DAB integrated brake C5 located on the inside is not connected to the hand brake E, and accordingly no hand brake lever is provided.
In the embodiment, compared with the structure before the DAB integrated brake device is not installed, the wind brake device D reduces parts such as a brake cylinder, a brake lever, a brake pull rod and the like, removes the installation of accessories of a stressed underframe, simplifies the structure, improves the brake transmission efficiency, reduces the crack fault of the parts, and avoids the problems of large energy consumption, difficult organization and assembly, complex process and the like caused by multiple pieces of production, so that the manufacturing cost of the whole vehicle is reduced, the manufacturing time is shortened, and the fault rate of the vehicle is reduced. Due to the fact that DAB integrated braking is adopted, parts such as a brake cylinder and a brake lever are reduced through the wind braking device, the dead weight of the vehicle is reduced, the load carrying capacity of the vehicle is improved, and the operation income can be improved. The specific structure of the wind braking device D is as follows:
referring to fig. 4, the air brake device D comprises an air control valve D-1, an automatic empty and heavy vehicle adjusting device D-2, an air cylinder D-3, a combined dust collector D-4, a cock D-5 and a pressure release valve D-6. The air control valve D-1 adopts a 120 type truck air control valve, the empty and heavy vehicle automatic adjusting device D-2 adopts a KZW type empty and heavy vehicle automatic adjusting device, a contact of the empty and heavy vehicle automatic adjusting device D-2 is connected with a contact plate C9-1 of a cross beam component C9, an air cylinder D-3 adopts a stainless steel three-chamber air cylinder, and a cock D-5 adopts a ball core angle cock. The air cylinder D-3, the air control valve D-1 and the pressure relief valve D-6 are communicated through an air pipe, and the pressure relief valve is connected to a brake cylinder C5-2 of the DAB integrated brake device through a communicating pipe (preferably a hose). The empty and heavy vehicle automatic adjusting device D-2, the combined dust collector D-4 and the cock D-5 are all arranged on the air pipe.
In this embodiment, the hand brake device E adopts an NSW type hand brake, and compared with the existing chain type hand brake, the hand brake has the advantages of increased braking force, compact structure and convenient operation. The NSW type hand brake is the hand brake adopted by 70 t-grade railway freight cars in China at present, and has high universality and low manufacturing and maintenance cost.
Other non-detailed structures of the 150t depressed center flat car are considered as prior art, and the details thereof will not be described herein.
Example 2:
based on the same inventive concept, the present embodiments provide a large freight car consist for shipping large heavy goods that a utility truck cannot ship, such as nuclear industrial materials or equipment, generators of large power plants, and the like.
Referring to fig. 5, the large freight car consist comprises a locomotive, at least 1 isolation car, at least 1 large freight car, at least 1 isolation car and a worker operating car which are connected in sequence. The locomotive is positioned at the head of the train consist and is used for providing running driving force for the train consist. The long and large goods vehicle is positioned in the middle of the whole train, and at least one isolation vehicle is arranged in front of and behind the long and large goods vehicle. Realize effects such as isolation, buffering, long big goods car is used for carrying cargo, and at least one of the big goods car of growing up adopts the 150t depressed center flatcars of above-mentioned embodiment 1, can improve the goods volume of carrying cargo, and the operation is more steady. The staff operation car supplies staff monitoring operation and rest to use, and in this embodiment, the staff operation car is including the escort car and the sleeping berth car of connecting, and the escort car mainly used monitors the operation, and the sleeping berth car is used for staff's rest to use.
Most of the existing railway large and large goods vehicles are shaped products more than ten years ago, do not meet the requirements of the integrated information service platform of the railway freight car, and can not realize the unified management of vehicle monitoring, operation, maintenance, health management and even logistics and the like. In addition, the goods transported by the long and large railway trucks have particularity and high economic value, and vehicles and goods in the transportation process need to be monitored in real time to ensure the safety of the transported goods.
In view of this, the necessary vehicle-mounted intelligent safety monitoring and information transmission system is additionally installed on the long and large cargo vehicle in the embodiment, so that unified management of vehicle monitoring, operation, maintenance, health management and even logistics and the like can be realized, and the vehicle application safety performance and the information management level of application and maintenance are improved.
Referring to fig. 6, in this embodiment, be provided with on-vehicle intelligent security monitoring and information transmission system on the goods car of growing up, on-vehicle intelligent security monitoring and information transmission system include: the video monitoring system is used for monitoring the appearance of the marshalling of the long and large goods vehicles and the goods carried by the marshalling in real time; the cargo parameter monitoring system is used for monitoring special parameters of the cargo in real time; the bogie shaft temperature monitoring system is used for monitoring the bearing temperature of the bogie in the grouping of the long and large freight cars in real time; and the centralized display platform is used for displaying signals generated by the video monitoring system, the cargo parameter monitoring system and the bogie axle temperature monitoring system in real time and transmitting the data to a monitoring center of a user.
The following describes in detail a specific implementation of the vehicle-mounted intelligent security monitoring and information transmission system, taking a loaded cargo as a nuclear industrial raw material or equipment as an example:
specifically, referring to fig. 5 and 6, the video surveillance system includes front and rear end vehicle-mounted cameras, a vehicle-mounted video surveillance host (i.e., a video controller in fig. 6), a vehicle-mounted video display, and a video transmission line. The front end and the rear end of the vehicle-mounted cameras monitor the vehicle and the goods transported by the vehicle in real time, the number and the installation positions of the cameras are determined according to actual needs, in the embodiment, the front camera is installed on the isolation vehicle in front of the marshalling long and large goods vehicle, the rear camera is installed on the isolation vehicle behind the marshalling long and large goods vehicle, the shooting range of the front camera and the shooting range of the rear camera are overlapped, and therefore the shooting range of the front camera and the shooting range of the rear camera covers the marshalling surface condition and the goods surface condition of the train. The front and rear end vehicle-mounted cameras are connected with the vehicle-mounted video monitoring host through a video transmission line, the vehicle-mounted video monitoring host can store video images in a certain time period and can play back the whole transportation process, and the problem in the whole transportation process can be guaranteed to be recorded and checked. The vehicle-mounted video monitoring host computer is connected with the vehicle-mounted video display through a video transmission line.
Specifically, the cargo parameter monitoring system can monitor the special parameters (including parameters such as radiation amount, temperature, acceleration, etc., in this embodiment, the radiation amount is taken as an example) of the cargo in real time. Referring to fig. 6, the cargo parameter monitoring system includes a cargo parameter detection sensor, a signal transmission network (i.e., RS485 radiation sensor network cable in fig. 6), a terminal server, and a terminal display. Cargo parameter detection sensor installs on the goods, link to each other with signal transmission network through the electric connector, and is concrete, and the detection index of this embodiment is the radiant quantity, and radiant quantity detection sensor installs on the goods package, links to each other with signal transmission network through the socket, as preferred, can install radiant quantity detection sensor, temperature sensor, acceleration sensor simultaneously on the long and large goods car (this embodiment is the last long and large goods car, as shown in fig. 6) that loads the goods, inserts signal transmission network with the sensor that uses as required. The signal transmission network transmits the goods parameter signal to the terminal server, the terminal server displays the data of the radiation quantity of the goods package on the terminal display through data processing, and the data can be transmitted to the monitoring center of a user in real time through a 4G network module installed in the centralized display platform.
Specifically, referring to fig. 6 and 7, the bogie axle temperature monitoring system includes a temperature sensor, an axle temperature converter, an axle temperature processor and an axle temperature host (including an alarm). The temperature sensor is arranged on an axle box of the bogie, a probe of the temperature sensor is connected into the bearing to detect the temperature of the bearing, and the temperature sensor transmits a temperature signal to the axle temperature converter; the shaft temperature converter transmits the temperature signal to the shaft temperature processor; the shaft temperature processor transmits a temperature signal to the shaft temperature host through an FSK bus; the shaft temperature host is used for displaying the temperature of each bearing in turn, and if the temperature of the bearing exceeds a normal value, the shaft temperature host automatically pops up the temperature of the bearing and gives an alarm. Referring to fig. 7, in this embodiment, taking the 150t depressed center flat car of embodiment 1 as an example, the 150t depressed center flat car is an eight-axle car, and includes 4 turning K5 type bogies, each turning K5 type bogie is provided with two sets of wheel pairs, i.e. 4 wheels, and correspondingly, 4 bearings are required to be configured. Then 4 × 4 axle temperature sensors, 4 axle temperature converters (one for each bogie), 2 axle temperature processors (2 bogies at the front end of the concave chassis share one axle temperature processor, 2 bogies at the rear end share one axle temperature processor), and 1 axle temperature host (one 150t concave chassis share one).
The centralized display platform is arranged on the escort vehicle, and the host computer and/or the display of the video monitoring system, the cargo parameter monitoring system and the bogie axle temperature monitoring system are integrated on the centralized display platform. In the embodiment, the centralized display platform integrates the vehicle-mounted video monitoring host, the vehicle-mounted video display, the terminal server, the terminal display and the axle temperature host. In addition, an alarm, a leakage protector, a power supply alternating current power supply wired plug, a socket for connecting front and rear end vehicle-mounted camera jumper cable plugs and a socket for connecting main transmission line jumper cable plugs are integrated on the centralized display table, so that front connection is convenient to monitor and transport.
The centralized display platform is internally provided with a wireless network module, the wireless network module is used for transmitting data displayed by the centralized display platform to a monitoring center of a user through a wireless network, the wireless network module can adopt any existing module capable of realizing wireless data transmission, the 4G network module is adopted in the embodiment, and the 4G network module transmits the data displayed by the centralized display platform to the monitoring center of the user through the 4G network.
Through the embodiment, the invention has the following beneficial effects or advantages:
1) the 150t depressed center flat car provided by the invention is provided with a steering K5 type bogie of a DAB integrated brake device, belongs to three large-piece type bogies, has good uniform load performance and lateral movement performance, is a bogie adopted by 70t railway wagons in China at present, and has high universality and low manufacturing and maintenance cost. The steering K5 type bogie equipped with the DAB integrated brake device can not generate deflection moment, and can reduce the abrasion of the wheel rim; the adjustment operation is not needed during loading and application and after the wheel spin repair, the self-adaptability is good, the workload is small, and the assembly quality is easy to guarantee. The tile changing force is small, and the overhaul period is long.
2) The 150t concave bottom flat wagon provided by the invention adopts a DAB type integrated brake device, and has the advantages of simple and compact structure, high integration degree, light weight, high transmission efficiency, easiness in assembly, small wheel abrasion, long overhaul period and excellent technical performance. And more wearing parts are eliminated, so that the cost and the workload for checking, replacing or repairing the wearing parts to the limit are reduced, the maintenance cost is reduced, the overhaul time is shortened, and the turnover rate of the vehicle is accelerated.
3) According to the 150t depressed center flat car, the wind braking device reduces parts such as a brake cylinder, a brake lever and a brake pull rod, the self weight of the car is reduced, the load carrying capacity of the car is increased, and the operation income can be improved.
4) The 150t depressed center flat car provided by the invention adopts the NSW type hand brake, so that the braking force is increased, the structure is compact, and the operation is convenient. The manual brake is a manual brake adopted by 70 t-grade railway trucks in China at present, and has high universality and low manufacturing and maintenance cost.
5) The long and large freight train marshalling provided by the invention is additionally provided with a necessary vehicle-mounted intelligent safety monitoring and information transmission system, can realize unified management of vehicle monitoring, operation, maintenance, health management and even logistics and the like, effectively improves the application safety performance and the application and maintenance informatization management level of the long and large freight trains, meets the requirements of an integrated information service platform of the railway freight train, and realizes unified management of vehicle monitoring, operation, maintenance, health management and even logistics and the like.
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. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (16)
1. The utility model provides a 150t depressed center flatcar which characterized in that: constitute including the chassis, and install in bogie, wind arresting gear, hand brake equipment and coupling buffer on the chassis is constituteed, the integration has the integrated arresting gear of DAB type on the bogie, the brake cylinder and the brake lever integration of wind arresting gear in among the integrated arresting gear of DAB type.
2. A 150t depressed center flat car as claimed in claim 1, wherein: the bogie is a three-piece bogie.
3. A 150t depressed center flat car as claimed in claim 2, wherein: the three-piece bogie is a K5-turning bogie or a K6-turning bogie.
4. A 150t depressed center flat car as claimed in claim 3, wherein: turn K5 type bogie and include that two wheel sets constitute, two side bearer constitutions, damping device, swing bolster constitute DAB type integrated brake equipment, rolling bearing device, elasticity side bearing, bearing spring group and spring supporting plate constitute, wherein:
the swing bolster assembly and the two side frame assemblies are connected through the bearing spring group, the whole swing bolster assembly and the two side frame assemblies are I-shaped, and the bearing spring group is connected with the side frame assemblies through the spring supporting plate assembly; the vibration damper is arranged at the joint of the swing bolster assembly and the two side frames;
the two wheel sets are distributed on two sides of the swing bolster assembly, and two ends of each wheel set assembly are respectively connected with the two side frame assemblies through the rolling bearing devices;
the DAB type integrated brake device is arranged in the swing bolster assembly; the elastic side bearings are arranged on the swing bolster assembly and distributed on two sides of a center plate formed by the swing bolster.
5. A150 t depressed center flat car as claimed in claim 4, wherein: the K5 type bogie that changes still includes monitoring device, monitoring device includes axle temperature monitoring devices.
6. A150 t depressed center flat car as claimed in claim 5, wherein: the monitoring device further comprises a self-generating device used for supplying power to the shaft temperature monitoring device, the self-generating device is a shaft end generating device and/or a vibration generating device, the shaft end generating device is installed on the rolling bearing device, and the vibration generating device is installed at the joint of the swing bolster assembly and the two side frames.
7. A150 t depressed center flat car according to any one of claims 4-6, wherein: the DAB type integrated brake device comprises the brake cylinder, two brake levers, two brake beams and four brake shoes, wherein:
the brake cylinder penetrates through a mounting hole formed in the middle of the swing bolster assembly, and two ends of the brake cylinder are hinged to the middle of the two brake levers respectively;
the two brake levers are arranged in parallel, one end of each brake lever is hinged with a fixed fulcrum seat arranged on the swing bolster assembly, and the other end of each brake lever is hinged with the brake beam;
the two brake beams are respectively arranged below the two brake levers; the four brake shoes are respectively arranged at two ends of the two brake beams;
the DAB type integrated brake device is selectively provided with a hand brake pull rod, and the hand brake device is connected with the DAB type integrated brake device through the hand brake pull rod.
8. A 150t depressed center flat car as claimed in claim 7, wherein: the wind arresting gear includes air control valve, reservoir, combination formula dust arrester, cock and relief valve, wherein:
the air cylinder, the air control valve and the pressure release valve are communicated through an air pipe, the pressure release valve is connected into the brake cylinder through a communication pipe,
the combined dust collector and the cock are both arranged on the air pipe.
9. A 150t depressed center flat car as claimed in claim 8, wherein: the K5 type bogie further comprises a cross beam assembly, wherein the cross beam assembly is parallel to the swing bolster assembly, and two ends of the cross beam assembly are respectively connected with the two side frame assemblies;
the wind braking device further comprises an automatic empty-load vehicle adjusting device, the automatic empty-load vehicle adjusting device is installed on the wind pipe, and a contact of the automatic empty-load vehicle adjusting device is connected with a contact plate formed by the cross beam.
10. A 150t depressed center flat car as claimed in any one of claims 1-6, 8-9, wherein: the chassis assembly comprises a concave chassis and two small chassis, the two small chassis are respectively arranged below two ends of the concave chassis, one end of the small chassis extends into the lower part of an end arm of the concave chassis and is connected with the end arm, and the other end of the small chassis extends out of the concave chassis;
the bogie is provided with 4, and 4 the bogie is installed respectively in two the below of little chassis.
11. The utility model provides a long and large goods car marshalling which characterized in that: the system comprises a locomotive, at least 1 isolation vehicle, at least 1 long and large goods vehicle, at least 1 isolation vehicle and a worker operation vehicle which are connected in sequence; at least one of the large cargo vehicles is a 150t depressed center flat vehicle as claimed in any one of claims 1-10.
12. A large freight car consist as defined in claim 11 wherein: be provided with on-vehicle intelligent security monitoring and information transmission system on the goods car of growing up, on-vehicle intelligent security monitoring and information transmission system include:
the video monitoring system is used for monitoring the appearance of the marshalling of the long and large goods vehicles and the goods carried by the marshalling in real time;
the cargo parameter monitoring system is used for monitoring the special parameters of the cargo in real time;
the bogie shaft temperature monitoring system is used for monitoring the bearing temperature of a bogie in the long and large freight car grouping in real time;
and the centralized display platform is used for displaying the signals generated by the video monitoring system, the cargo parameter monitoring system and the bogie axle temperature monitoring system in real time and transmitting the data to a monitoring center of a user.
13. A large freight car consist as defined in claim 12 wherein: the video monitoring system comprises front and rear end vehicle-mounted cameras, a vehicle-mounted video monitoring host, a vehicle-mounted video display and a video transmission line; the front and rear end vehicle-mounted cameras monitor vehicles and goods transported by the vehicles in real time, the front and rear end vehicle-mounted cameras are connected with a vehicle-mounted video monitoring host through video transmission lines, the vehicle-mounted video monitoring host can store video images in a certain time period, and the vehicle-mounted video monitoring host is connected with the vehicle-mounted video display through the video transmission lines.
14. A large freight car consist as defined in claim 12 wherein: the cargo parameter monitoring system comprises a cargo parameter detection sensor, a signal transmission network, a terminal server and a terminal display; the cargo parameter detection sensor is arranged on the cargo and is connected with the signal transmission network through an electric connector; and the signal transmission network transmits the cargo parameter signal to the terminal server and displays cargo parameter data through the terminal display.
15. A large freight car consist as defined in claim 12 wherein: the bogie axle temperature monitoring system comprises a temperature sensor, an axle temperature converter, an axle temperature processor and an axle temperature host; the temperature sensor is arranged on an axle box of the bogie and detects the temperature of a bearing through a probe of the temperature sensor, and the temperature sensor transmits a temperature signal to the axle temperature converter; the shaft temperature converter transmits a temperature signal to the shaft temperature processor; the shaft temperature processor transmits a temperature signal to the shaft temperature host; the shaft temperature host is used for displaying the temperature of each bearing in turn, and automatically popping up the temperature of the bearing and giving an alarm when the temperature of the bearing exceeds a normal value.
16. A large freight car consist as defined in any one of claims 12 to 15 wherein: the working personnel operating vehicle comprises a escort vehicle and a sleeper vehicle which are connected, and the centralized display platform is arranged on the escort vehicle;
the host computer and/or the display of the video monitoring system, the cargo parameter monitoring system and the bogie axle temperature monitoring system are integrated on the centralized display platform;
the centralized display platform is also integrated with an alarm, a leakage protector, a power supply alternating current power supply wired plug, a socket for connecting the front and rear end vehicle-mounted camera jumper cable plugs and a socket for connecting the jumper cable plug of the main transmission line;
the centralized display platform is internally provided with a wireless network module which is used for transmitting the data displayed by the centralized display platform to a monitoring center of a user through a wireless network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010873096.8A CN112026823B (en) | 2020-08-26 | 150T concave bottom flatcar and long and large cargo car marshalling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010873096.8A CN112026823B (en) | 2020-08-26 | 150T concave bottom flatcar and long and large cargo car marshalling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112026823A true CN112026823A (en) | 2020-12-04 |
| CN112026823B CN112026823B (en) | 2024-07-16 |
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| CN114670887A (en) * | 2022-04-12 | 2022-06-28 | 中车眉山车辆有限公司 | Framework suitable for from electricity generation railway freight car bogie |
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| WO2023087752A1 (en) * | 2021-11-18 | 2023-05-25 | 中车长江运输设备集团有限公司 | Wheel-axle-brake-type railway wagon bogie |
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