CN215204881U - Multipurpose flatcar suitable for plateau, high and cold, long and large descending ramp - Google Patents

Abstract

A multipurpose flat car suitable for plateaus, high cold and long steep ramps comprises a car body, a bogie, a car coupler buffer device, a braking system and an intelligent detection system; the bogie is a built-in axle box suspension welding bogie and consists of an axle device, an axle box, a suspension device of the axle box, a framework, a braking device, elastic side bearings and a center plate connecting device, wherein the axle device consists of an axle, wheels, a brake disc and bearings, the two bearings are arranged on the inner sides of the two wheels, the brake disc is arranged on the inner sides of the two bearings, and the axle box and the suspension device thereof are arranged on the inner sides of the wheels; the coupler buffer device is an intelligent coupling device; the intelligent detection system is arranged on the bogie and comprises a power generation device and a detection device. This multipurpose flatcar collects intellectual detection system, intelligence and links to hang in an organic whole, under adverse circumstances, has reduced manual operation, has greatly reduced artificial intensity of labour, and can be strong through the curve, is applicable to plateau, high and cold, the ramp environment of growing up.

Description

Multipurpose flatcar suitable for plateau, high and cold, long and large descending ramp

The technical field is as follows:

the utility model relates to a railway transportation equipment makes technical field, especially relates to the railway freight car that is suitable for ramp of growing up makes technical field, specific theory, is a multipurpose flatcar suitable for plateau, high and cold, ramp of growing up.

Background art:

the railway in plateau and alpine regions is different from the existing railway in China, the environmental condition is severe, the characteristics of plateau, alpine and long and large downhill slopes are achieved, the road rescue is difficult, the braking heat load is large when the railway grows and steep downhill slopes, new requirements are provided for a bogie, a braking system, a coupler buffer device, vehicle-mounted monitoring and the like, and the existing flat car cannot be suitable for severe environments.

The utility model has the following contents:

the utility model provides a multipurpose flatcar suitable for plateau, high and cold, the ramp of growing up, collect intellectual detection system, intelligence even hang in an organic whole, under adverse circumstances, reduced manual operation, greatly reduced artificial intensity of labour, and through curve performance strong, be applicable to plateau, high and cold, the ramp environment of growing up.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

the utility model provides a multipurpose flat car suitable for plateaus, severe cold and long and large downhill slopes, which comprises a car body, a bogie, a car coupler buffer device and a brake system; the vehicle body consists of an underframe, an end door, a wood floor and a container locking device; the underframe consists of a middle beam, an end beam, a sleeper beam, a side beam, a large cross beam, a central large cross beam and an auxiliary beam; the chassis lower part is passed through the heart dish and is connected two bogies, and coupling buffer sets up the both ends at the chassis, and braking system sets up below the chassis, and its key technology is: the bogie of the multipurpose flat car is a built-in axle box suspension welding bogie which consists of an axle shaft device, an axle box and a suspension device thereof, a framework, a braking device, an elastic side bearing and a center plate connecting device, wherein the axle shaft device consists of an axle, wheels, a brake disc and bearings, the two bearings are arranged at the inner sides of the two wheels, the brake disc is positioned at the inner sides of the two bearings, and the axle box and the suspension device thereof are arranged at the inner sides of the wheels; the car coupler buffer device is an intelligent coupling device, and the brake system comprises an air brake system and an automatic parking device; the multipurpose flat car is provided with an intelligent detection system, is arranged on a bogie and comprises a power generation device and a detection device.

The axle end of the axle is provided with an assembly process hole or a sealing hole; a gland is additionally arranged on the outer side of each wheel to axially press the wheel, and the gland is fixed at the end part of the axle through three axle end bolts; the axle shaft body is provided with a mounting seat and a baffle, the mounting seat comprises a wheel seat, a bearing seat and a brake disc seat, the baffle comprises a bearing baffle shoulder, and the mounting seat and the baffle arranged on the axle are gradually increased from two ends to the middle.

The number of the brake discs can be selected to be 1 disc, 2 discs or 3 discs per shaft according to the requirement of the running braking distance of the vehicle.

The bearing adopts a rolling bearing device, and the axial position of the rolling bearing device is clamped and positioned by a bearing retaining shoulder on the axle and a wheel hub of the wheel.

The frame assembly of the bogie comprises a main body structure, a lower center plate of the frame assembly, a guide frame and a brake hanging seat, wherein the main body structure comprises 1 bogie sleeper beam and 2 bogie side beams, and the middle part of an upper cover plate of the bogie sleeper beam is provided with an operation hole for installing the lower center plate of the frame assembly; two ends of the upper surface of the bogie sleeper beam are provided with side bearing mounting positions for mounting elastic side bearings; the two ends of the lower surface of each of the 2 bogie side beams are provided with guide frames, the guide frames are in contact with the axle boxes and springs of the suspension devices of the axle boxes, and two sides of the middle section of the bogie sleeper beam are respectively provided with 2 brake hanging seats. The axle box and the suspension device of the bogie are composed of an axle box, an inner spring, an outer spring, a spring cap, a lifting ring pin, a top, a wearing plate and a locking block, wherein the axle box is arranged at the inner side of a wheel, an axle box bearing saddle surface is arranged on the axle box and is matched with a bearing arranged on a wheel shaft device through the axle box bearing saddle surface, the locking block is fixedly connected with the axle box, the inner spring and the outer spring are arranged on bearing platforms at the inner side and the outer side of each axle box, and the spring cap is connected with a guide frame formed by a framework through the lifting ring; the framework assembly is integrally arranged on the springs of the 4 axle boxes. The braking device of the bogie is hung on the braking hanging seat through a fastening piece and consists of a brake cylinder, a clamp and a brake pad; brake pads of the braking device are uniformly arranged on two sides of the brake disc. Two elastic side bearings of the bogie are arranged outside the center line of a sleeper beam of the bogie formed by the framework, and each elastic side bearing comprises a spring, a side bearing seat and a side bearing cover. The center plate connecting device of the bogie is arranged on a bogie sleeper beam formed by a framework, the center plate connecting device comprises an upper center plate, a wear liner, a lower center plate, a center pin, a pin lock and a bolt fastener, the upper center plate is connected with the upper center plate formed by the framework arranged on the bogie sleeper beam through the center pin, the wear liner is arranged between the upper center plate and the lower center plate, the cushion block and the center pin are placed in a spherical concave surface of the upper center plate, and the center pin is connected with the belly of the bogie sleeper beam through an operation hole in the bogie sleeper beam.

The axle box is in a shape of a Chinese character ji, the locking block is in a three-layer step shape, bearing platforms and bolt holes are arranged at two ends of the axle box, the bolt holes are arranged at two ends of the locking block, and the axle box is connected with the locking block through bolts; the clearance between the bearing and the boss of the locking block is smaller than the height of the bearing shoulder of the axle box; the free state height of the outer spring on the bearing platforms at the inner side and the outer side of the axle box is higher than that of the inner spring. A circular vertical stop is arranged in the center of the top of the axle box; two lifting threaded holes are formed in the inner side of the top of the axle box; wear plate welding surfaces are arranged on the left side and the right side of the axle box saddle part.

The axle box and the suspension device adopt a unilateral benoll shock absorber, and the benoll shock absorber is arranged on the outer side of the axle box, namely the far centrifugal disc side.

The framework is an integral H-shaped welded framework; the braking device adopts unit disc brake and is a clamp braking unit.

The lower center plate, the upper center plate and the lower center plate which are formed by the framework are all spherical center plates.

The side bearing seat is provided with a stop, a positioning block and a positioning pin column, and the elastic side bearing is positioned and installed at two ends of the sleeper beam of the bogie through the positioning pin column.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses an intelligence coupling buffer can realize that coupling, braking are responsible for and electric elements's intelligence is even hung and intelligent unblock. And simultaneously, the utility model discloses possess one set of intellectual detection system, can realize the on-vehicle electricity generation, can real-time supervision braking system pressure everywhere, can monitor vehicle operation quality, including but not limited to the unbalance loading condition, acceleration, axle temperature etc.. The utility model discloses collect intellectual detection system, intelligence even hang in an organic whole, under adverse circumstances, reduced manual operation, greatly reduced artificial intensity of labour, be applicable to plateau, high and cold, the ramp environment of growing up.

2. The utility model discloses a bogie adopts a built-in railway freight car welding bogie that hangs, therefore bogie compact structure, light in weight because the axle journal centre-to-centre spacing shortens, axletree length size shortens, and the wheel pair quality reduces to the unsprung mass of bogie reduces. Simultaneously, be favorable to improving the curve trafficability characteristic of vehicle, wheel rail wearing and tearing and noise when also having reduced the vehicle and passing through the curve circuit, consequently the utility model discloses a curve capacity reinforcing can satisfy wheel heat load requirement under the ramp circulation braking operating mode of growing up.

3. The utility model discloses not only can be used to load 20ft, 40ft and 45ft container, still can ship goods such as steel, car, tractor, one-tenth case goods, large-scale concrete bridge and military equipment.

4. The utility model discloses dispose automatic parking device, can realize automatic parking in the ramp of growing up, and contain the manual function of alleviating, reduced the intensity of labour of artificial manipulation hand brake.

5. The utility model discloses an axle box of bogie and linkage divide into two parts from top to bottom, for the switching formula axle box, the axle box can be removed under the condition of not withdrawing the wheel to bearing maintenance to the equipment of being convenient for and maintenance. The utility model discloses an axle box and linkage are split type axle box, for both sides bearing mode, axle box, latch segment are detachable installation, are convenient for assemble, dismantle and overhaul. Axle box, latch segment form through the cooperation of sufficient little, bear the weight of atress overall structure, and when axle box both sides cushion cap bore the atress, provide vertical support by the cooperation of sufficient little latch segment, prevent that the axle box atress is too big and deformation damage. The additional increase of the transverse assembling bolt fastening is to prevent the locking block from falling off due to vibration during the running process of the vehicle.

6. The utility model discloses a bogie adopts the rim plate braking, does not exert braking force on the wheel, reduces heat load and wheel wearing and tearing to improve wheel life.

Description of the drawings:

FIG. 1 is a front view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a schematic view of the three-dimensional structure of the bogie of the present invention;

fig. 4 is a schematic structural view of the axle device of the bogie of the present invention;

fig. 5 is a schematic structural view of an axle box suspension device of the bogie of the present invention;

FIG. 6 is a schematic view of the structure of the bogie frame of the present invention;

fig. 7 is a schematic structural view of a braking device of the bogie of the present invention;

FIG. 8 is a schematic view of the structure of the elastic side bearing of the bogie of the present invention;

FIG. 9 is a front view of the resilient side bearing of the truck of the present invention;

fig. 10 is a schematic view of the connection of the center plate connection device of the bogie of the present invention to the bogie sleeper beam;

fig. 11 is a front view of the core plate connecting device of the bogie of the present invention;

fig. 12 is a schematic view showing the connection between the axle box and the locking block of the axle box and its suspension device according to the present invention.

Reference numbers in the figures:

the system comprises a car body 1, a bogie 2, a car coupler buffer device 3, a brake system 4 and an intelligent detection system 5.

1.1-underframe, 1.2-end door, 1.3-wood floor, 1.4-container locking device.

1.1.1-middle beam, 1.1.2-end beam, 1.1.3-sleeper beam, 1.1.4-side beam, 1.1.5-large beam, 1.1.6-central large beam and 1.1.7-auxiliary beam.

2.1-wheel shaft device, 2.2-axle box and its suspension device, 2.3-frame component, 2.4-brake device, 2.5-elastic side bearing and 2.6-core disk connecting device.

2.1.1-axle, 2.1.2-wheel, 2.1.3-brake disc, 2.1.4-bearing, 2.1.5-gland, 2.1.6-axle end bolt, 2.1.7-bearing shoulder and 2.1.8-hub.

2.2.1-axle box, 2.2.2-inner spring, 2.2.3-outer spring, 2.2.4-spring cap, 2.2.5-hanging ring,

2.2.6-hanging ring pin, 2.2.7-top, 2.2.8-wearing plate, 2.2.9-axle box bearing saddle surface, 2.2.10-locking block, 2.2.11-vertical stop, 2.2.12-lifting threaded hole and 2.2.13-wearing plate welding surface.

2.3.1-bogie sleeper beam, 2.3.2-bogie side beam, 2.3.3-framework composition lower center plate, 2.3.4-guide frame, 2.3.5-brake hanging seat and 2.3.6-operation hole.

2.4.1-brake cylinder, 2.4.2-clamp and 2.4.3-brake pad.

2.5.1-spring, 2.5.2 side bearing, 2.5.3-side bearing cover, 2.5.4-stop, 2.5.5-positioning block and 2.5.6-positioning pin.

2.6.1-upper center plate, 2.6.2-abrasion liner, 2.6.3-lower center plate, 2.6.4-center pin, 2.6.5-pin lock, 2.6.6-bolt fastener and 2.6.7-cushion block.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following embodiments, which are intended to illustrate the principles of the present invention without limiting the present invention in any way, and the present invention is not beyond the scope of the present invention.

Referring to fig. 1-2, the utility model provides a multipurpose flatcar suitable for plateau, high and cold, long and large downhill path, this multipurpose flatcar includes automobile body 1, bogie 2, coupling buffer 3, braking system 4, intellectual detection system 5. The vehicle body 1 consists of an underframe 1.1, an end door 1.2, a wood floor 1.3 and a container locking device 1.4; the underframe 1.1 consists of a center sill 1.1.1, an end sill 1.1.2, a sleeper beam 1.1.3, a side sill 1.1.4, a large cross beam 1.1.5, a central large cross beam 1.1.6 and an auxiliary beam 1.1.7, and the lower part of the underframe 1.1 is connected with two bogies 2 through a center plate. The coupler buffer device 3 is an intelligent coupling device and is arranged at two ends of the underframe 1.1, and intelligent coupling and intelligent unlocking of a coupler, a brake main pipe and electrical elements can be realized. The brake system 4 is arranged below the chassis 1.1 and comprises an air brake system and an automatic parking device. The intelligent detection system 5 is arranged on the bogie 2 and comprises a power generation device and a detection device, so that vehicle-mounted power generation can be realized, and the running condition of the brake system 4 and the running quality of a vehicle can be monitored in real time in the running process.

Referring to fig. 3-12, the bogie 2 of the present invention is a built-in axle box suspension welding bogie, which mainly comprises an axle device 2.1, an axle box and its suspension device 2.2, a frame component 2.3, a brake device 2.4, an elastic side bearing 2.5, a core plate connecting device 2.6, etc.

The wheel shaft device 2.1 consists of an axle 2.1.1, a wheel 2.1.2, a brake disc 2.1.3 and a bearing 2.1.4, the brake disc 2.1.3, the bearing 2.1.4 and the wheel 2.1.2 are sequentially pressed and assembled, and the three parts are in interference fit with the axle 2.1.1. The wheels 2.1.2 are provided with two wheels which are symmetrically arranged at two shaft ends of the axle 2.1.1. The two bearings 2.1.4 are inside the two wheels 2.1.2. The axle 2.1.1 axle end is equipped with the assembly fabrication hole or sealed hole, installs gland 2.1.5 additional outside every wheel 2.1.2 and pushes down wheel 2.1.2 axially, and gland 2.1.5 is fixed in axle 2.1.1 end through three axle head bolts 2.1.6. The bogie adopts axle disc braking, the number of the brake discs 2.1.3 can be selected to be 1 disc, 2 discs or 3 discs per axle according to the requirement of the running braking distance of the vehicle, the brake discs 2.1.3 are pressed on the axle 2.1.1 through interference, and the brake discs 2.1.3 are positioned at the inner sides of the two bearings 2.1.4. The axletree 2.1.1 is provided with the mount pad on one's body and keeps off, and the mount pad includes wheel seat, bearing frame, brake disc seat, keeps off including bearing fender shoulder 2.1.7, and the mount pad that sets up on the axletree 2.1.1 reaches and keeps off, increases gradually from both ends to the centre. The bearing 2.1.4 adopts a rolling bearing device, and the axial position of the rolling bearing device is clamped and positioned by a bearing retaining shoulder 2.1.7 on the axle 2.1.1 and a hub 2.1.8 of the wheel 2.1.2.

The frame assembly 2.3 is an integral H-shaped welded frame, the frame assembly 2.3 comprises a main structure, a lower center plate 2.3.3 consisting of the frame assembly, a guide frame 2.3.4 and a brake hanging seat 2.3.5, the main structure is formed by welding 1 bogie sleeper beam 2.3.1 and 2 bogie side beams 2.3.2, and the middle part of an upper cover plate of the bogie sleeper beam 2.3.1 is provided with an operation hole 2.3.6 for installing the frame assembly lower center plate 2.3.3; the bearing surface of the lower center plate 2.3.3 formed by the framework is designed to be a spherical surface, the degree of freedom of the vehicle body 1 relative to the bogie 2 is increased due to spherical surface contact, when the vehicle body 1 performs side rolling motion, the vehicle body 1 generates a certain inclination angle, the spherical center plate is still well matched, the spherical surface of the upper center plate is still closely attached to the spherical surface of the lower center plate, sufficient contact area is ensured, and the sudden increase of the pressure of the center plate caused by side rolling of the vehicle body 1 of a similar plane center plate is avoided. And side bearing mounting positions are arranged at two ends of the upper surface of the bogie sleeper beam 2.3.1 and used for mounting the elastic side bearings 2.5. When the vehicle body and the bogie fall, the spherical center plate and the elastic side bearing 2.5 share the load of the vehicle body together. The two ends of the lower surface of the 2 bogie side beams 2.3.2 are provided with guide frames 2.3.4, the guide frames 2.3.4 are in contact with the axle boxes and the springs of the suspension devices 2.2 thereof, and the vertical load borne by the framework assembly 2.3 is transmitted to the axle boxes 2.2.1. Two sides of the middle section of the bogie sleeper beam 2.3.1 are respectively provided with 2 braking hanging seats 2.3.5 for installing a braking device 2.4.

The axle box and the suspension device 2.2 thereof are split type axle boxes, the axle box and the suspension device 2.2 thereof are arranged on the inner side of the wheel 2.1.2 and are composed of an axle box 2.2.1, an inner spring 2.2.2, an outer spring 2.2.3, a spring cap 2.2.4, a lifting ring 2.2.5, a lifting ring pin 2.2.6, a top 2.2.7, a wearing plate 2.2.8 and a locking block 2.2.10, the axle box 2.2.1 is arranged on the inner side of the wheel 2.1.2, the axle box 2.2.1 is provided with an axle box bearing saddle surface 2.2.9, and the axle box bearing saddle surface 2.2.9 is matched with a bearing 2.1.4 arranged on the axle device 2.1. The center of the top of the axle box 2.2.1 is provided with a round vertical stop 2.2.11; the inner side of the top of the axle box 2.2.1 is provided with two hoisting threaded holes 2.2.12 for installing an axle box crane, so that the hoisting operation is facilitated; the left side and the right side of the saddle part of the axle box 2.2.1 are provided with wear plate welding surfaces 2.2.13 for welding wear-resistant metal plates and prolonging the service life of the axle box 2.2.1 body. The axle box 2.2.1 is in a shape of Chinese character ji, the locking block 2.2.10 is in a three-layer ladder shape, bearing platforms and bolt holes are arranged at two ends of the axle box 2.2.1, the bolt holes are arranged at two ends of the locking block 2.2.10, after the axle box 2.2.1 is formed, the locking block 2.2.10 is connected with the axle box 2.2.1 through bolts, the gap between the bearing 2.1.4 and the boss of the locking block 2.2.10 is smaller than the height of a bearing shoulder of the axle box 2.2.1, the bearing 2.1.4 is locked inside the axle box 2.2.1, and the bearing 2.1.4 is prevented from jumping out in the movement process. The inner spring 2.2.2 and the outer spring 2.2.3 are arranged on bearing platforms at the inner side and the outer side of each axle box 2.2.1. Wherein, the free state height of the outer spring 2.2.3 is higher than that of the inner spring 2.2.2, and only the outer spring 2.2.3 is stressed and compressed when the vehicle is in an empty state; when the vehicle is in a heavy-duty state, after the outer spring 2.2.3 is pressed to the same height as the inner spring 2.2.2, the inner spring 2.2.2 participates in bearing stress and is compressed and loaded with the outer spring 2.2.3. The axle box suspension 2.2 uses unilateral lenoer dampers, which are arranged outside the axle box 2.2.1 (remote disc side), avoiding spatial interference with the brake 2.4 of the suspended unit, i.e. avoiding positional interference with the movement of the clamp 2.4.2. The spring cap 2.2.4 is connected with a guide frame 2.3.4 on the framework assembly 2.3 through a hanging ring 2.2.5; the frame assembly 2.3 is integrally mounted on the springs of the 4 axle boxes 2.2.1. The axle box and the suspension device 2.2 thereof adopt an openable axle box, and the axle box 2.2.1 can be removed under the condition of not withdrawing the wheels 2.1.2 when the bearing 2.1.4 is overhauled and maintained, thereby being convenient for assembly and overhaul.

The brake device 2.4 adopts a unit disc brake, is a clamp brake unit and mainly comprises a brake cylinder 2.4.1, a clamp 2.4.2 and brake pads 2.4.3, and the brake pads 2.4.3 of the brake device 2.4 are uniformly arranged on two sides of a brake disc 2.1.3. The braking device 2.4 is hung on the braking hanging seat 2.3.5 through a fastener. When the vehicle needs to be braked (relieved), the clamp 2.4.2 is controlled to clamp (loosen) the brake disc 2.1.3 through inflation (deflation) of the brake cylinder 2.4.1, and therefore the vehicle is braked (relieved).

Two elastic side bearings 2.5 of the bogie are arranged on the outer side of the center line of a bogie sleeper beam 2.3.1 of a framework assembly 2.3, each elastic side bearing 2.5 consists of a spring 2.5.1, a side bearing seat 2.5.2 and a side bearing cover 2.5.3, a stop 2.5.4, a positioning block 2.5.5 and a positioning pin 2.5.6 are arranged on each side bearing seat 2.5.2, and the elastic side bearings 2.5 are positioned and installed at the two ends of the bogie sleeper beam 2.3.1 through positioning pins 2.5.6. The size of the bearing load of the side bearing in the working state is adjusted by setting the height difference between the upper surface of the elastic side bearing 2.5 (side bearing cover 2.5.3) and the spherical center plate. Meanwhile, the vertical stop 2.5.4 is arranged on the side bearing seat 2.5.2, so that the vehicle is prevented from overturning due to the fact that the inclination angle of the vehicle body is too large when the vehicle rolls.

The core plate connecting device 2.6 is arranged on a bogie sleeper beam 2.3.1 of the framework assembly 2.3, the core plate connecting device 2.6 comprises an upper core plate 2.6.1, a wear liner 2.6.2, a lower core plate 2.6.3, a center pin 2.6.4, a pin lock 2.6.5 and a bolt fastener 2.6.6, and the upper core plate 2.6.1 and the lower core plate 2.6.3 are spherical core plates. The upper center plate 2.6.1 is connected with an upper center plate 2.3.3 formed by a framework installed on a truck sleeper beam 2.3.1 through a center pin 2.6.4, a wear liner 2.6.2 is arranged between the upper center plate 2.6.1 and a lower center plate 2.6.3, the upper center plate 2.6.3 is installed and fixed in front of a truck chassis sleeper beam, a cushion block 2.6.7 and a center pin 2.6.4 are placed in a spherical concave surface of an upper center plate 2.6.3 in advance, after a truck body and the truck are fallen, the center pin 2.6.4 is connected and operated on the belly of the truck sleeper beam 2.3.1 through an operation hole 2.3.6 reserved in the truck sleeper beam 2.3.1, and an operation hole 2.3.6 is arranged on the truck sleeper beam 2.3.1, so that the upper center plate 2.6.1 and the lower center plate 2.6.3 can be conveniently connected and loosened.

Claims (10)

1. A multipurpose flat car suitable for plateaus, high cold and long steep slopes comprises a car body (1), a bogie (2), a car coupler buffer device (3) and a braking system (4); the vehicle body (1) consists of an underframe (1.1), an end door (1.2), a wood floor (1.3) and a container locking device (1.4); the underframe (1.1) consists of a middle beam (1.1.1), an end beam (1.1.2), a sleeper beam (1.1.3), a side beam (1.1.4), a large cross beam (1.1.5), a central large cross beam (1.1.6) and an auxiliary beam (1.1.7); two bogies (2) are connected through the heart dish in chassis (1.1) lower part, and coupling buffer (3) set up the both ends at chassis (1.1), and braking system (4) set up below chassis (1.1), characterized by: the bogie (2) of the multipurpose flatcar is a built-in axle box suspension welding bogie and consists of an axle device (2.1), axle boxes and a suspension device (2.2) thereof, a framework composition (2.3), a braking device (2.4), elastic side bearings (2.5) and a center plate connecting device (2.6), wherein the axle device (2.1) consists of an axle (2.1.1), wheels (2.1.2), a brake disc (2.1.3) and bearings (2.1.4), the two bearings (2.1.4) are arranged at the inner sides of the two wheels (2.1.2), the brake disc (2.1.3) is arranged at the inner sides of the two bearings (2.1.4), and the axle boxes and the suspension device (2.2) thereof are arranged at the inner sides of the wheels (2.1.2); the car coupler buffer device (3) is an intelligent coupling device, and the brake system (4) comprises an air brake system and an automatic parking device; the multipurpose flat car is provided with an intelligent detection system (5) which is arranged on a bogie (2) and comprises a power generation device and a detection device.

2. The multi-purpose flat car suitable for plateaus, alpine and long steep slopes according to claim 1, wherein: the shaft end of the axle (2.1.1) is provided with an assembly process hole or a sealing hole; a gland (2.1.5) is additionally arranged on the outer side of each wheel (2.1.2) to axially press the wheel (2.1.2), and the gland (2.1.5) is fixed at the end part of the axle (2.1.1) through three shaft end bolts (2.1.6); the axletree (2.1.1) is provided with the mount pad on the shaft body and keeps off, and the mount pad includes wheel seat, bearing frame, brake disc seat, keeps off including bearing fender shoulder (2.1.7), and the mount pad and the fender that set up on axletree (2.1.1) increase gradually from both ends to the centre.

3. The multi-purpose flat car suitable for plateaus, alpine and long steep slopes according to claim 1, wherein: the number of the brake discs (2.1.3) can be selected to be 1 disc, 2 discs or 3 discs per shaft according to the requirement of the running braking distance of the vehicle.

4. The multi-purpose flat car suitable for plateaus, alpine and long steep slopes according to claim 1, wherein: the bearing (2.1.4) adopts a rolling bearing device, and the axial position of the rolling bearing device is clamped and positioned by a bearing retaining shoulder (2.1.7) on the axle (2.1.1) and a hub (2.1.8) of the wheel (2.1.2).

5. The multi-purpose flat car suitable for plateaus, alpine and long steep slopes according to claim 1, wherein: the frame assembly (2.3) of the bogie (2) comprises a main body structure, a lower center plate (2.3.3) consisting of the frame assembly, a guide frame (2.3.4) and a brake hanging seat (2.3.5), wherein the main body structure consists of 1 bogie sleeper beam (2.3.1) and 2 bogie side beams (2.3.2), and the middle part of an upper cover plate of the bogie sleeper beam (2.3.1) is provided with an operation hole (2.3.6) for installing the frame assembly lower center plate (2.3.3); two ends of the upper surface of the bogie sleeper beam (2.3.1) are provided with side bearing mounting positions for mounting elastic side bearings (2.5); both ends of the lower surface of each of the 2 bogie side beams (2.3.2) are provided with a guide frame (2.3.4), the guide frames (2.3.4) are in contact with the axle boxes and springs of suspension devices (2.2) of the axle boxes, and two sides of the middle section of each bogie sleeper beam (2.3.1) are respectively provided with 2 brake hanging seats (2.3.5);

the axle box of the bogie (2) and the suspension device (2.2) thereof are composed of an axle box (2.2.1), an inner spring (2.2.2), an outer spring (2.2.3), a spring cap (2.2.4), a lifting ring (2.2.5), a lifting ring pin (2.2.6), a top (2.2.7), a wearing plate (2.2.8) and a locking block (2.2.10), wherein the axle box (2.2.1) is arranged at the inner side of a wheel (2.1.2), an axle box bearing saddle surface (2.2.9) is arranged on the axle box (2.2.1), the axle box bearing saddle surface (2.2.9) is matched with a bearing (2.1.4) arranged on the axle device (2.1), the locking block (2.2.10) is fixedly connected with the axle box (2.2.2.1), the inner spring (2.2.2.2.2.2.1) and the outer spring cap (2.2.2.2.1) are arranged on bearing platforms at two sides of each axle box (2.2.1), and a frame (2.2.2.2.5) is connected with a lifting ring (3.2.2.4) frame; the framework assembly (2.3) is integrally arranged on the springs of 4 axle boxes (2.2.1);

the braking device (2.4) of the bogie (2) is hung on the braking hanging seat (2.3.5) through a fastening piece, and the braking device (2.4) consists of a brake cylinder (2.4.1), a clamp (2.4.2) and a brake pad (2.4.3); brake pads (2.4.3) of the brake device (2.4) are uniformly arranged on two sides of the brake disc (2.1.3);

two elastic side bearings (2.5) of the bogie (2) are arranged outside the center line of a bogie sleeper beam (2.3.1) of the framework assembly (2.3), and each elastic side bearing (2.5) consists of a spring (2.5.1), a side bearing seat (2.5.2) and a side bearing cover (2.5.3);

a center plate connecting device (2.6) of the bogie (2) is arranged on a bogie sleeper beam (2.3.1) of a framework assembly (2.3), the center plate connecting device (2.6) comprises an upper center plate (2.6.1), an abrasion liner (2.6.2), a lower center plate (2.6.3), a center pin (2.6.4), a pin lock (2.6.5) and a bolt fastener (2.6.6), the upper center plate (2.3.3) and the framework assembly arranged on the bogie sleeper beam (2.3.1) are connected through the center pin (2.6.4), the abrasion liner (2.6.2) is arranged between the upper center plate (2.6.1) and the lower center plate (2.6.3), the center pin (2.6.7) and the center pin (2.6.4) are placed in a spherical concave surface of the upper center plate (2.6.3), and the center pin (2.6.4) is connected with the bogie sleeper beam (2.3.3.3.3) through an operation sleeper hole (2.3.1) on the bogie sleeper beam (2.3.3.1).

6. The multi-purpose flat car suitable for plateaus, alpine and long steep slopes as claimed in claim 5, wherein: the axle box (2.2.1) is in a shape of Chinese character ji, the locking block (2.2.10) is in a three-layer ladder shape, bearing platforms and bolt holes are arranged at two ends of the axle box (2.2.1), bolt holes are arranged at two ends of the locking block (2.2.10), and the axle box (2.2.1) and the locking block (2.2.10) are connected through bolts; the clearance between the bearing (2.1.4) and the boss of the locking block (2.2.10) is less than the height of the bearing shoulder of the axle box (2.2.1); the free state height of the outer spring (2.2.3) on the bearing platforms at the inner side and the outer side of the axle box (2.2.1) is higher than that of the inner spring (2.2.2); a circular vertical stop (2.2.11) is arranged at the center of the top of the axle box (2.2.1); two lifting threaded holes (2.2.12) are formed in the inner side of the top of the axle box (2.2.1); wear plate welding surfaces (2.2.13) are arranged on the left side and the right side of the saddle part of the axle box (2.2.1).

7. The multi-purpose flat car suitable for plateaus, alpine and long steep slopes as claimed in claim 5, wherein: the axle box and the suspension device (2.2) adopt a unilateral Reynolds damper, and the Renol damper is arranged at the outer side of the axle box (2.2.1), namely the far centrifugal disc side.

8. The multi-purpose flat car suitable for plateaus, alpine and long steep slopes as claimed in claim 5, wherein: the framework composition (2.3) is an integral H-shaped welded framework; the braking device (2.4) adopts unit disc brake and is a clamp braking unit.

9. The multi-purpose flat car suitable for plateaus, alpine and long steep slopes as claimed in claim 5, wherein: the lower center plate (2.3.3), the upper center plate (2.6.1) and the lower center plate (2.6.3) which are formed by the framework are spherical center plates.

10. The multi-purpose flat car suitable for plateaus, alpine and long steep slopes as claimed in claim 5, wherein: the side bearing (2.5.2) is provided with a stop (2.5.4), a positioning block (2.5.5) and a positioning pin (2.5.6), and the elastic side bearing (2.5) is positioned and installed at two ends of the bogie sleeper beam (2.3.1) through the positioning pin (2.5.6).

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