CN212579847U - Large-load flat car - Google Patents
Large-load flat car Download PDFInfo
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- CN212579847U CN212579847U CN202021255372.6U CN202021255372U CN212579847U CN 212579847 U CN212579847 U CN 212579847U CN 202021255372 U CN202021255372 U CN 202021255372U CN 212579847 U CN212579847 U CN 212579847U
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Abstract
The utility model discloses a big load flatcar. The three-axle bogie comprises a bogie body and a three-axle bogie, wherein the bogie body consists of an underframe and a floor, and the underframe is of an all-steel welded structure; the middle beam traction and bolster part of the underframe is of a variable cross-section box beam structure along the longitudinal direction of the car body to form a trapezoid-shaped groove thickness reducing structure, the axial center of the structure is positioned in the center of the three-axle bogie, the bevel edges at two ends of the structure are respectively obliquely arranged along two outer side wheel pairs, and a center pin is inserted into a traction elastic hinge arranged in the center of the three-axle bogie to be combined to form a horizontal stress structure; two ends of the sleeper beam are respectively arranged in parallel, and the sleeper beam is arranged on the three-axle bogie through two groups of side bearings to form a vertical bearing structure. The utility model meets the mounting dimension requirement of the bearing surface of the bogie, ensures the height of the central line of the car coupler and the height of the floor surface, and can realize the coupling with the existing vehicle; the load of the four-point side bearing structure is uniformly distributed, and the conical surface contact form of the traction elastic hinge transfers horizontal force by the conical surface, so that the contradiction between the axle weight increase of the bogie and the space structure limitation is better adapted.
Description
Technical Field
The utility model belongs to the technical field of rail vehicle manufacturing and designing, especially, belong to the manufacturing and designing technique of big load railway freight car, in particular to design structure of big load railway freight car flatcar.
Background
With the development of railway wagon technology and the continuous change of logistics transportation requirements, heavy load has become one of the main development directions of the current railway wagon technology. Most of general flatcars used for railway transportation in China are two-axle bogies, the loads are 60 tons and 70 tons, and the transportation capacity is low. The improvement of the vehicle bearing capacity by increasing the number of the axles of the bogie is an important approach, but the traditional three-axle bogie is difficult to be applied to a flat car with the existing structure due to the limitation of factors such as the height between a vehicle coupler and a ground plane and a rail surface and the like.
Disclosure of Invention
The utility model discloses a big load flatcar according to prior art's not enough. The utility model aims at providing a satisfy bogie loading end mounting dimension's requirement, can realize linking with existing vehicle, the bigger big load flatcar structure who is used for triaxial bogie of load.
The utility model discloses a following technical scheme realizes:
big load flatcar comprises automobile body, coupling buffer, arresting gear and triaxial bogie, its characterized in that: the vehicle body consists of an underframe and a floor paved on the underframe; the underframe is an all-steel welding structure and is formed by assembling and welding a middle beam, a side beam, an end beam, a sleeper beam, a large cross beam, a central large cross beam and an auxiliary beam;
wherein;
the traction and bolster part of the center sill is of a variable cross-section box girder structure along the longitudinal direction of the vehicle body to form a trapezoidal groove thickness reducing structure of the traction and bolster part of the center sill along the longitudinal direction of the vehicle body, the axial center of the trapezoidal groove thickness reducing structure is positioned at the center of the three-axle bogie, and the inclined edges at two ends are respectively arranged along two axle wheel pairs outside the three-axle bogie in an inclined manner;
the middle part of the trapezoid-shaped groove thickness reducing structure is inserted into a traction elastic hinge arranged at the center of the three-axle bogie through a central pin to form a horizontal stress structure;
the two ends of the sleeper beam along the longitudinal direction of the vehicle body are respectively provided with two sleeper beams in parallel; the three-axle bogie is characterized in that four groups of independent side bearings are symmetrically arranged on a peripheral framework of the three-axle bogie by taking a traction elastic hinge as a center, and the bottom surface of one of two sleeper beams at each end is respectively arranged on the three-axle bogie through two groups of side bearings to form a vertical bearing structure.
The inserting end of the center pin is a trapezoidal round table with an inclined surface, the traction elastic hinge of the three-axle bogie is a trapezoidal groove with an inclined surface, the surface of the trapezoidal groove is fixed with elastic materials through vulcanization, and the center pin and the traction elastic hinge form a conical surface contact horizontal driving structure.
The middle beam is arranged in a through mode along the longitudinal center of the vehicle body, the two side beams are arranged in parallel with the middle beam along the two longitudinal sides of the vehicle body, the two end beams are fixedly arranged at the two ends of the vehicle body, the two side beams and the middle beam, the two sleeper beams are respectively arranged on the inner sides of the two end beams, the large cross beam, the auxiliary beam and the central large cross beam are sequentially arranged on the inner sides of the sleeper beams, and the central large cross beam is located at the longitudinal center of the vehicle.
The edge of the floor is provided with a side pressing iron and an end pressing iron, the floor is provided with a pressing strip, and the pressing iron and the pressing strip are connected with the underframe steel structure through bolts and nuts.
The coupler buffer device comprises a G-type coupler and an SL76-1 type buffer.
An air braking device is arranged at the lower part of the underframe; one end of the underframe is provided with a hand brake device which adopts a 9300-3ECP type hand brake.
The side bearing assembly comprises an upper side bearing and a lower side bearing; the upper side bearing comprises an upper side bearing seat, an adjusting base plate, an upper side bearing body and a roller arranged in a groove of the upper side bearing body, wherein the upper side bearing seat, the adjusting base plate and the upper side bearing body are fixedly connected from top to bottom in sequence; three groups of rollers are arranged in parallel; the lower side bearing comprises an upper lining plate, an elastomer and a lower lining plate which are sequentially connected from top to bottom through vulcanization, and two fixing pins are arranged on the bottom surface of the lower lining plate; the roller rolling surfaces of the upper side bearing are in rolling contact with the upper liner plate surface of the lower side bearing.
The upper side bearing seat is fixedly connected with the bottom surface of the car body sleeper beam in a welding way; two fixing pins are arranged on the bottom surface of the lower lining plate and are connected with the bogie in a positioning mode.
The utility model discloses big load flatcar mainly comprises automobile body, coupling buffer, arresting gear and bogie. Wherein the vehicle body consists of an underframe and a wood floor. The underframe is of an all-steel welding structure and is mainly formed by assembling and welding a middle beam, side beams, end beams, sleeper beams, large cross beams, a central large cross beam, an auxiliary beam and the like, wherein the sleeper pulling part of the middle beam is of a variable cross-section structure, and the height of the central line of the car coupler and the height of the floor surface are ensured under the condition of meeting the requirement of the installation size of the bearing surface of the bogie. The pine wood floor is laid on the underframe, and the pine wood material is larch or pinus sylvestris. The edge of the floor is provided with a side pressing iron and an end pressing iron, the floor is provided with a pressing strip, and the pressing iron and the pressing strip are connected with the underframe steel structure through bolts and nuts. The coupler buffer device comprises a G-type coupler and an SL76-1 type buffer. The lower part of the underframe is provided with an air brake device. One end of the underframe is provided with a hand brake device which adopts a 9300-3ECP type hand brake. The novel three-axle bogie of the large-load wagon, which is borne by a full side bearing, is adopted, the lower part of an underframe is connected with two bogies through a center pin, and the center pin and a traction elastic hinge on the bogies are in a conical surface contact type and rely on a conical surface to transmit horizontal force.
The utility model discloses the bolster part that leads of flatcar center sill is variable cross section case girder construction, satisfies under the requirement of bogie loading end mounting dimension, has guaranteed the height of coupling central line and floor face height, can realize linking with existing vehicle and hang.
The utility model adopts a novel three-axle bogie of the large-load railway wagon, which is loaded by a full side bearing, compared with the traditional three-axle bogie of the railway wagon, the three-axle bogie can fully exert the whole structural strength of the framework, and the design difficulty of the structural strength of the framework is greatly reduced; the utility model discloses the flatcar is born by the heart dish single-point of traditional railway freight car three-axis bogie and is turned into four-point side bearing and bear, load evenly distributed, four-point side bearing bears whole vertical load, and there is not the heart dish at the bogie center, adopt and pull the elasticity hinge, only transmit the horizontal force, two bogies of center pin connection are passed through to flatcar chassis lower part, pull the elasticity hinge on center pin and the bogie and be conical surface contact form, rely on conical surface transmission horizontal force, because automobile body load evenly distributed is on the side bearing that is located the curb girder, the requirement of the beam structural strength directly over the axle reduces by a wide margin in the middle of being located, the reduction that the vertical cross-section height of crossbeam can great degree, the problem that this department of traditional railway freight car three-axis bogie bearing structure design space is not enough has effectively been solved, the contradiction between adaptation bogie axle load increase and.
The utility model discloses flatcar load 150t adapts to large-scale goods such as shipment electric power, metallurgy, chemical industry, heavy machinery.
Drawings
FIG. 1 is a front view of the flat car of the present invention;
fig. 2 is a schematic top view of the flat carriage of the present invention; FIG. 3 is a schematic partially enlarged cross-sectional view of the bogie coupling portion of the flatcar of the present invention;
FIG. 4 is an enlarged view of the portion I of the traction elastic hinge shown in FIG. 3;
fig. 5 is a schematic structural view of the bogie of the present invention;
fig. 6 is a schematic view of the structure of the side bearing of the present invention.
In the figure, 1-underframe, 2-floor, 3-coupler buffer device, 4-air brake device, 5-hand brake device, 6-bogie, 11-middle beam, 12-side beam, 13-end beam, 14-sleeper beam, 15-central large beam, 16-large beam, 17-auxiliary beam, 18-center pin, 19-traction elastic hinge, 20-side bearing, 21-upper side bearing, 22-lower side bearing, and X-center pin and traction elastic hinge contact inclined plane.
Detailed Description
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.
With reference to the attached drawings.
As shown in the figure, the large-load flat car comprises a car body, a car coupler buffer device 3, a braking device and a three-axle bogie 6, wherein the braking device comprises an air braking device 4 and a hand braking device 5; the vehicle body is composed of an underframe 1 and a floor 2 laid on the underframe 1, wherein the underframe 1 is of an all-steel welded structure and is formed by assembling and welding a middle beam 11, a side beam 12, an end beam 13, a sleeper beam 14, a central large cross beam 15, a large cross beam 16 and an auxiliary beam 17.
The traction and bolster part of the center sill 11 is of a variable cross-section box girder structure along the longitudinal direction of the vehicle body to form a trapezoidal groove thickness reducing structure of the traction and bolster part along the longitudinal direction of the vehicle body, the axial center of the trapezoidal groove thickness reducing structure is positioned at the center of the three-axle bogie 6, and bevel edges at two ends are respectively arranged along two outer side wheel pairs of the three-axle bogie 6 in an inclined mode.
The middle part of the trapezoid-shaped groove thickness reducing structure is inserted into a traction elastic hinge 19 arranged at the center of the three-axle bogie 6 through a central pin 18 to form a horizontal stress structure.
The two ends of the sleeper beam 14 in the longitudinal direction of the vehicle body are respectively arranged in parallel; four groups of independent side bearing assemblies 20 are symmetrically arranged on a peripheral framework of the three-axis bogie 6 by taking the traction elastic hinge 19 as a center, and the bottom surface of one of two sleeper beams at each end is respectively placed on the three-axis bogie 6 through two groups of side bearing assemblies to form a vertical bearing structure.
The inserting end of the center pin 18 is a trapezoidal round table with an inclined surface, the traction elastic hinge 19 of the three-axle bogie 6 is a trapezoidal groove with an inclined surface, the surface of the trapezoidal groove is fixed with elastic materials through vulcanization, and the center pin 18 and the traction elastic hinge 19 form a conical surface contact horizontal driving structure.
The middle beam 11 is arranged in a penetrating mode along the longitudinal center of the vehicle body, two side beams 12 are arranged on two sides of the vehicle body in parallel to the middle beam 11 along the longitudinal direction of the vehicle body, two end beams 13 are fixedly arranged at two ends of the vehicle body, the two side beams 12 and the middle beam 11, two sleeper beams 14 are respectively arranged on the inner sides of the two end beams 13, a large cross beam 16, an auxiliary beam 17 and a central large cross beam 15 are sequentially arranged on the longitudinal inner sides of the sleeper beams 14, and the central large cross beam 15 is located in the longitudinal center of.
The three-axle bogie 6 is a centerless disc, a traction elastic hinge 19 is adopted to transmit horizontal force, the lower part of the underframe 1 is connected with the two bogies 6 through a center pin 18, the center pin 18 and the traction elastic hinge 19 on the bogie 6 are in a conical surface contact type, the horizontal force is transmitted by means of the conical surface, and the load of a car body is uniformly distributed on a side bearing 20.
Claims (8)
1. The utility model provides a big load flatcar comprises automobile body, coupling buffer, arresting gear and triaxial bogie, its characterized in that: the vehicle body consists of an underframe and a floor paved on the underframe; the underframe is an all-steel welding structure and is formed by assembling and welding a middle beam, a side beam, an end beam, a sleeper beam, a large cross beam, a central large cross beam and an auxiliary beam;
wherein;
the traction and bolster part of the center sill is of a variable cross-section box girder structure along the longitudinal direction of the vehicle body to form a trapezoidal groove thickness reducing structure of the traction and bolster part of the center sill along the longitudinal direction of the vehicle body, the axial center of the trapezoidal groove thickness reducing structure is positioned at the center of the three-axle bogie, and the inclined edges at two ends are respectively arranged along two axle wheel pairs outside the three-axle bogie in an inclined manner;
the middle part of the trapezoid-shaped groove thickness reducing structure is inserted into a traction elastic hinge arranged at the center of the three-axle bogie through a central pin to form a horizontal stress structure;
the two ends of the sleeper beam along the longitudinal direction of the vehicle body are respectively provided with two sleeper beams in parallel; the three-axle bogie is characterized in that four groups of independent side bearings are symmetrically arranged on a peripheral framework of the three-axle bogie by taking a traction elastic hinge as a center, and the bottom surface of one of two sleeper beams at each end is respectively arranged on the three-axle bogie through two groups of side bearings to form a vertical bearing structure.
2. The heavy duty flat car of claim 1, wherein: the inserting end of the center pin is a trapezoidal round table with an inclined surface, the traction elastic hinge of the three-axle bogie is a trapezoidal groove with an inclined surface, the surface of the trapezoidal groove is fixed with elastic materials through vulcanization, and the center pin and the traction elastic hinge form a conical surface contact horizontal driving structure.
3. A heavy duty flat car according to claim 2 wherein: the middle beam is arranged in a through mode along the longitudinal center of the vehicle body, the two side beams are arranged in parallel with the middle beam along the two longitudinal sides of the vehicle body, the two end beams are fixedly arranged at the two ends of the vehicle body, the two side beams and the middle beam, the two sleeper beams are respectively arranged on the inner sides of the two end beams, the large cross beam, the auxiliary beam and the central large cross beam are sequentially arranged on the inner sides of the sleeper beams, and the central large cross beam is located at the longitudinal center of the vehicle.
4. A heavy duty flat car according to claim 3 wherein: the edge of the floor is provided with a side pressing iron and an end pressing iron, the floor is provided with a pressing strip, and the pressing iron and the pressing strip are connected with the underframe steel structure through bolts and nuts.
5. A heavy duty flat car according to claim 3 wherein: the coupler buffer device comprises a G-type coupler and an SL76-1 type buffer.
6. A heavy duty flat car according to claim 3 wherein: an air braking device is arranged at the lower part of the underframe; one end of the underframe is provided with a hand brake device which adopts a 9300-3ECP type hand brake.
7. A heavy duty flat car according to any one of claims 1 to 6 wherein: the side bearing assembly comprises an upper side bearing and a lower side bearing; the upper side bearing comprises an upper side bearing seat, an adjusting base plate, an upper side bearing body and a roller arranged in a groove of the upper side bearing body, wherein the upper side bearing seat, the adjusting base plate and the upper side bearing body are fixedly connected from top to bottom in sequence; three groups of rollers are arranged in parallel; the lower side bearing comprises an upper lining plate, an elastomer and a lower lining plate which are sequentially connected from top to bottom through vulcanization, and two fixing pins are arranged on the bottom surface of the lower lining plate; the roller rolling surfaces of the upper side bearing are in rolling contact with the upper liner plate surface of the lower side bearing.
8. The heavy duty flat car of claim 7, wherein: the upper side bearing seat is fixedly connected with the bottom surface of the car body sleeper beam in a welding way; two fixing pins are arranged on the bottom surface of the lower lining plate and are connected with the bogie in a positioning mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021255372.6U CN212579847U (en) | 2020-07-01 | 2020-07-01 | Large-load flat car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021255372.6U CN212579847U (en) | 2020-07-01 | 2020-07-01 | Large-load flat car |
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| CN212579847U true CN212579847U (en) | 2021-02-23 |
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| CN202021255372.6U Active CN212579847U (en) | 2020-07-01 | 2020-07-01 | Large-load flat car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111674417A (en) * | 2020-07-01 | 2020-09-18 | 中车眉山车辆有限公司 | Large-load flat car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111674417A (en) * | 2020-07-01 | 2020-09-18 | 中车眉山车辆有限公司 | Large-load flat car |
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