CN213676689U - Draw beam structure, chassis structure and rail vehicle - Google Patents
Draw beam structure, chassis structure and rail vehicle Download PDFInfo
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- CN213676689U CN213676689U CN202022159300.8U CN202022159300U CN213676689U CN 213676689 U CN213676689 U CN 213676689U CN 202022159300 U CN202022159300 U CN 202022159300U CN 213676689 U CN213676689 U CN 213676689U
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Abstract
The utility model provides a draw beam structure, which comprises a plate body frame and a car coupler seat plate; the plate body frame is arranged on the bottom frame; the car coupler seat plate is used for being connected with a car coupler and arranged in the plate body frame, and the plate surface of the car coupler seat plate is vertical to the extending direction of the plate body frame; the peripheral surface of the coupler seat plate is provided with a groove, the groove is provided with a dividing groove which penetrates along the extending direction of the groove, the dividing groove divides the groove into two bevel surfaces, and the coupler seat plate is welded with the inner surface of the plate body frame through the bevel surfaces. The utility model also provides an underframe structure and rail vehicle with above-mentioned draw beam structure. The utility model can reduce welding input and is easy to control welding deformation by welding the groove and the inner surface of the plate body frame; the groove is divided into two bevel faces by the dividing groove, which is equivalent to reducing the thickness of the welding part of the car coupler seat plate corresponding to the plate body frame, thereby reducing the phenomena of non-fusion and crack of welding seams caused by different plate thicknesses and avoiding the whole deformation of the car coupler seat plate.
Description
Technical Field
The utility model belongs to the technical field of rail vehicle draw beam, more specifically say, relate to a draw beam structure, chassis structure and rail vehicle.
Background
With the increasing call for energy conservation and emission reduction in the global scope, the railway vehicle has the characteristics of light weight, high strength, bearing resistance, impact resistance, fatigue resistance and the like. In the research of vehicle body light weight, each component of the vehicle body structure, such as the chassis, the side wall, the roof, the end wall, etc., is generally designed to be light weight.
Aiming at the underframe structure, the underframe generally comprises a sleeper beam, a draft sill, a boundary beam, an end beam, a supporting beam and part of reinforcing accessories, wherein the draft sill is a connecting part for installing the car coupler and is also the key point for loading and checking the car body. The conventional draft sill generally adopts a symmetrical plate body frame structure, and a coupler seat plate is arranged in the draft sill and is used for being connected with a coupler. The plate body frame can transmit the compression and tension working conditions of the car coupler seat plate to the whole car body structure.
In the prior art, the coupler seat plate is welded in the plate body frame in a fillet welding mode, and the coupler seat plate is thicker than the plate body frame and has different thicknesses, so that larger welding stress and welding defects (such as welding seams which are not fused and cracks) can occur during welding, and the plate body frame can also deform.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a draw beam structure aims at solving the coupler bedplate that exists among the prior art and the plate body frame thickness difference and the technical problem that welding defect and plate body frame warp can appear during the welding that leads to.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a draft sill structure including:
the plate body frame is arranged on the bottom frame;
the car coupler seat plate is connected with a car coupler, arranged in the plate body frame and vertical to the extending direction of the plate body frame; the outer peripheral surface of the coupler seat plate is provided with a groove, the groove is provided with a dividing groove which penetrates through the groove along the extending direction of the groove, the dividing groove divides the groove into two bevel surfaces, and the coupler seat plate is welded with the inner surface of the plate body frame through the bevel surfaces.
As another embodiment of the present invention, two the bevel surfaces are symmetrically disposed along the center line of the dividing groove, and two the bevel surfaces are welded to the inner surface of the plate frame, respectively.
As another embodiment of the present invention, the groove is provided around the outer peripheral surface of the coupler seat plate.
As another embodiment of the present invention, each corner point of the two side walls of the dividing groove is provided with a chamfer.
As another embodiment of the present invention, the plate body frame includes:
the upper cover plate is connected to the underframe and extends along the direction of the vehicle body;
the lower cover plate is positioned below the upper cover plate; one end of the lower cover plate is used for being connected with a sleeper beam of the underframe, and the other end of the lower cover plate is bent downwards and extends to be connected with the groove on the outer peripheral surface of the bottom of the coupler seat plate in a welding mode;
the two side plates are arranged between the upper cover plate and the lower cover plate at intervals and are respectively connected with the upper cover plate and the lower cover plate; the inner surfaces of the two side plates are respectively welded and connected with the grooves on the outer peripheral surfaces of the side parts of the coupler seat plate; and
the force transmission plate is connected between the two side plates; one end of the force transmission plate is connected with the end beam of the underframe, and the other end of the force transmission plate is inclined upwards and extends to be connected with the lower surface of the upper cover plate; the force transmission plate is further connected with the plate surface of the coupler seat plate or the peripheral surface of the top of the coupler seat plate.
As another embodiment of the present invention, the top of the coupler seat plate extends upward to be welded to the lower surface of the upper cover plate; and the force transmission plate is connected with the plate surface of the car coupler seat plate in a welding mode.
As another embodiment of the present invention, the force transmission plate includes:
one end of the first plate is used for being connected with an end beam of the underframe, and the other end of the first plate extends downwards obliquely and is connected with one plate surface of the coupler seat plate;
one end of the second plate is connected with the other plate surface of the coupler seat plate, and the other end of the second plate is inclined upwards and extends to be connected with the lower surface of the upper cover plate;
the first plate and the second plate are connected to the same height position of the coupler seat plate.
As another embodiment of the present invention, each of the outer sides of the side plates is further connected with a reinforcing plate.
The utility model provides a draw beam structure's beneficial effect lies in: compared with the prior art, the traction beam structure of the utility model has the advantages that the groove is arranged on the outer peripheral surface of the car coupler seat plate, and the groove is welded with the inner surface of the plate body frame, so that the welding input can be reduced, and the welding deformation control is easy; set up the cut-off groove that runs through along its extending direction on the groove, the cut-off groove divides into two bevel face with the groove, has reduced the thickness that the welding position of coupler bedplate corresponding plate body frame in other words, and the thickness of bevel face is roughly the same with the thickness of plate body frame to reducible welding seam that produces because the different cooling rates of plate thickness do not fuse and the crackle phenomenon, and can also avoid coupler bedplate whole deformation.
The utility model also provides an underframe structure, including foretell draw beam structure.
The utility model also provides a rail vehicle, including foretell chassis structure.
The utility model provides an underframe structure, rail vehicle's beneficial effect is the same with foretell draw beam structure's beneficial effect, no longer gives unnecessary details here.
Drawings
Fig. 1 is a schematic structural view of a draft sill structure provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of a coupler seat plate of a draft sill structure according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structural view of a coupler seat plate of a draft sill structure according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 2 taken along circle A;
fig. 5 is an exploded schematic view of a draft sill structure according to an embodiment of the present invention;
FIG. 6 is a schematic semi-sectional structural view of FIG. 1;
FIG. 7 is an enlarged view of the structure of FIG. 6 at circle B;
fig. 8 is a front view of fig. 6.
In the figure: 1. a plate body frame; 11. an upper cover plate; 12. a lower cover plate; 13. a side plate; 14. a force transmission plate; 141. a first plate; 142. a second plate; 15. a reinforcing plate; 16. a support plate; 2. a coupler seat plate; 21. beveling; 211. a bevel face; 22. dividing the groove; 221. and (6) chamfering.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3 together, a draft sill structure according to the present invention will now be described. The draft sill structure comprises a plate body frame 1 and a coupler seat plate 2. The plate body frame 1 is arranged on the underframe; the coupler seat plate 2 is used for being connected with a coupler, the coupler seat plate 2 is arranged in the plate body frame 1, and the plate surface is vertical to the extending direction of the plate body frame 1; the outer peripheral surface of the coupler seat plate 2 is provided with a groove 21, the groove 21 is provided with a dividing groove 22 penetrating along the extending direction of the groove, the dividing groove 22 divides the groove 21 into two groove surfaces 211, and the coupler seat plate 2 is welded with the inner surface of the plate body frame 1 through the groove surfaces 211.
It should be noted that, in order to satisfy the lightweight design requirement of automobile body, the utility model discloses a plate body frame 1 adopts a plurality of panel welding to form, preferably, chooses for use the sheet metal, and the thickness of each panel equals. In addition, because the coupler seat plate 2 is used for connecting the coupler, tensile and compressive forces of the coupler need to be borne, in order to improve the bearing performance of the coupler seat plate 2, the coupler seat plate 2 is made of thick plates, and the thickness of the coupler seat plate 2 is larger than that of a single plate of the plate body frame 1. The coupler seat plate 2 is also provided with a mounting hole for connecting with a coupler.
The plate surface of the coupler seat plate 2 is perpendicular to the extending direction of the plate body frame 1, that is, the plates of the coupler seat plate 2 and the plate body frame 1 are welded in a T shape. When a thick plate (i.e., the coupler seat plate 2) is welded to a base material (i.e., a plate of the plate frame 1), welding defects may occur due to the difference in thickness, and even deformation of the base material may be caused. In the draft sill structure provided by the utility model, the groove 21 is arranged on the outer peripheral surface of the coupler seat plate 2, and the groove 21 is welded with the inner surface of the plate body frame 1, so that the welding input can be reduced, and the welding deformation control is easy; the groove 21 is provided with the dividing groove 22 penetrating along the extending direction of the groove, the dividing groove 22 divides the groove 21 into two groove surfaces 211, the thickness of the welding part of the coupler seat plate 2 corresponding to the plate body frame 1 is reduced equivalently, the thickness of the groove surfaces 211 is approximately the same as that of the plate body frame 1, therefore, the phenomena of non-fusion and crack of welding seams caused by different cooling speeds of plate thicknesses can be reduced, and the integral deformation of the coupler seat plate 2 can be avoided.
Referring to fig. 2 and 3, as a specific embodiment of the draft sill structure of the present invention, two bevel surfaces 211 are symmetrically disposed along the center line of the dividing groove 22, and the two bevel surfaces 211 are respectively welded to the inner surface of the plate frame 1.
Two bevel face 211 all with the internal surface welding of plate body frame 1, increased welding area, promoted the fixed strength of coupling bedplate 2. In addition, the two bevel surfaces 211 are symmetrically arranged, so that the stress of the bevel 21 is uniform, and the dividing groove 22 is easy to machine and form.
Specifically, the notch surface 211 is a flat surface and is disposed obliquely to the plate surface of the coupling seat plate 2.
Referring to fig. 2 and 3, in the above embodiment, the bevel 21 is disposed around the outer peripheral surface of the coupler base plate 2. In order to transmit the load received by the coupler base plate 2 to each part of the plate frame 1, it is preferable that the outer circumferential surface of the coupler base plate 2 is entirely welded to the inner surface of the plate frame 1, and therefore, the groove 21 is provided around the outer circumferential surface of the coupler base plate 2 so as to meet the welding requirement.
Referring to fig. 4, in the above embodiment, a chamfer 221 is provided at each corner of the two side walls of the dividing groove 22. The provision of the chamfer 221 eliminates a sharp corner structure at the corner of the dividing groove 22 and prevents interference when the coupling seat plate 2 is assembled with the plate body frame 1.
Referring to fig. 5 to 8, as an embodiment of the draft sill structure of the present invention, the plate frame 1 includes an upper cover plate 11, a lower cover plate 12, two side plates 13 and a force transmission plate 14. The upper cover plate 11 is used for being connected to the underframe and extends along the direction of the vehicle body; the lower cover plate 12 is positioned below the upper cover plate 11, and the extending direction of the lower cover plate is the same as that of the upper cover plate 11; one end of the lower cover plate 12 is used for connecting with a sleeper beam of the underframe, and the other end is bent downwards and extends to be connected with a groove 21 on the outer peripheral surface of the bottom of the coupler seat plate 2 in a welding way; the two side plates 13 are arranged between the upper cover plate 11 and the lower cover plate 12 at intervals and are respectively connected with the upper cover plate 11 and the lower cover plate 12; the inner surfaces of the two side plates 13 are respectively welded and connected with a groove 21 on the outer peripheral surface of the side part of the coupler seat plate 2; the force transmission plate 14 is connected between the two side plates 13; one end of the force transmission plate 14 is used for being connected with an end beam of the underframe, and the other end of the force transmission plate is inclined upwards and extends to be connected with the lower surface of the upper cover plate 11; the force transmission plate 14 is also connected to the plate surface of the coupling head plate 2 or the top peripheral surface of the coupling head plate 2.
The thicknesses of the upper cover plate 11, the lower cover plate 12, the two side plates 13, and the force transmission plate 14 in this embodiment are substantially the same. All the plates are connected through welding. In order to reduce the weight of the panel frame 1, lightening holes are provided in each panel.
The underframe is an existing component arranged at the bottom of the vehicle, and the towing beam structure of the embodiment is arranged in the middle of the underframe along the running direction of the vehicle body. The two ends of the underframe are respectively an end beam and a sleeper beam which are perpendicular to the running direction of the car body, a plurality of cross beams are distributed between the end beam and the sleeper beam and are respectively positioned at the two sides of the traction beam framework for realizing the reliable connection between the underframe and the traction beam structure.
The upper cover plate 11, the lower cover plate 12 and the two side plates 13 enclose a space for placing the coupler base plate 2. When the coupler base plate 2 is subjected to loads (including static loads, dynamic loads and impact loads of a vehicle), the loads are upwards transmitted to the upper cover plate 11 through the force transmission plate 14, the loads are downwards transmitted to the sleeper beam through the lower cover plate 12, the loads are horizontally transmitted to the sleeper beam through the two side plates 13, and the sleeper beam decomposes the loads to the middle beam and the side beams.
The plate body frame 1 formed by the lower cover plate 12, the two side plates 13 and the force transfer plate 14 can uniformly disperse force to the bottom frame, so that the stress of the coupler seat plate 2 is homogenized, and the stability of the draft sill structure is ensured.
Referring to fig. 6 and 8, as a specific embodiment of the draft sill structure of the present invention, the top of the car coupler seat plate 2 extends upward to be welded to the lower surface of the upper cover plate 11; the force transmission plate 14 is welded with the plate surface of the coupler seat plate 2.
Aiming at the vehicle model with higher load bearing requirement or the vehicle model with the car coupler seat plate 2 being shorter than the end beam, the part of the force transfer plate 14 connecting the end beam and the car coupler seat plate 2 is smaller in size and poorer in force transfer performance, so that the car coupler seat plate 2 is upwards extended to be welded with the upper cover plate 11, and the load can be directly transferred to the upper cover plate 11 through the car coupler seat plate 2 and also can be transferred to the upper cover plate 11 through the force transfer plate 14.
Specifically, the force transfer plate 14 includes a first plate 141 and a second plate 142, one end of the first plate 141 is used for connecting with an end beam of the underframe, and the other end extends obliquely downward to be connected with one of the plate surfaces of the coupler seat plate 2; one end of the second plate 142 is connected with the other plate surface of the coupler seat plate 2, and the other end is inclined upwards and extends to be connected with the lower surface of the upper cover plate 11; the first plate 141 and the second plate 142 are connected to the same height position of the coupling seat plate 2, as shown in fig. 8.
This is accomplished by extending the coupler base plate 2 upward to be welded to the lower surface of the upper cover plate 11, and connecting the coupler base plate 2 to the force transfer plate 14 to separate the force transfer plate 14 into a first plate 141 and a second plate 142. In addition, the first plate 141 and the second plate 142 are connected to the same height position of the coupler base plate 2, so that the stress of the coupler base plate 2 is balanced, and deformation of two side plate surfaces of the coupler base plate 2 due to different force transmission positions is avoided.
Referring to fig. 1 and 5, as a specific embodiment of the draft sill structure of the present invention, a reinforcing plate 15 is further connected to an outer side of each side plate 13. The reinforcing plate 15 serves to reinforce the overall strength of the panel frame 1. In addition, a supporting plate 16 is arranged between the two side plates 13, and the supporting plate 16 is also used for enhancing the overall strength of the plate body frame 1.
The utility model also provides an underframe structure, including foretell draw beam structure.
The utility model also provides a rail vehicle, including foretell chassis structure.
Compared with the prior art, the underframe structure and the rail vehicle provided by the utility model have the advantages that the groove 21 is arranged on the outer peripheral surface of the car coupler seat plate 2, and the welding input can be reduced and the welding deformation control is easy through the welding of the groove 21 and the inner surface of the plate body frame 1; the groove 21 is provided with the dividing groove 22 penetrating along the extending direction of the groove, the dividing groove 22 divides the groove 21 into two groove surfaces 211, the thickness of the welding part of the coupler seat plate 2 corresponding to the plate body frame 1 is reduced equivalently, the thickness of the groove surfaces 211 is approximately the same as that of the plate body frame 1, therefore, the phenomena of non-fusion and crack of welding seams caused by different cooling speeds of plate thicknesses can be reduced, and the integral deformation of the coupler seat plate 2 can be avoided.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A draft sill structure, comprising:
the plate body frame is arranged on the bottom frame;
the car coupler seat plate is connected with a car coupler, arranged in the plate body frame and vertical to the extending direction of the plate body frame; the outer peripheral surface of the coupler seat plate is provided with a groove, the groove is provided with a dividing groove which penetrates through the groove along the extending direction of the groove, the dividing groove divides the groove into two bevel surfaces, and the coupler seat plate is welded with the inner surface of the plate body frame through the bevel surfaces.
2. The draft sill structure according to claim 1, wherein two of said bevel surfaces are symmetrically disposed along a center line of said dividing groove, and both of said bevel surfaces are welded to an inner surface of said panel frame, respectively.
3. The draft sill structure of claim 2, wherein said bevel is disposed around an outer peripheral surface of said draft sill plate.
4. The draft sill structure of claim 3, wherein a chamfer is provided at each corner point of both side groove walls of said dividing groove.
5. The draft sill structure, according to any one of claims 1-4, wherein said deck frame includes:
the upper cover plate is connected to the underframe and extends along the direction of the vehicle body;
the lower cover plate is positioned below the upper cover plate; one end of the lower cover plate is used for being connected with a sleeper beam of the underframe, and the other end of the lower cover plate is bent downwards and extends to be connected with the groove on the outer peripheral surface of the bottom of the coupler seat plate in a welding mode;
the two side plates are arranged between the upper cover plate and the lower cover plate at intervals and are respectively connected with the upper cover plate and the lower cover plate; the inner surfaces of the two side plates are respectively welded and connected with the grooves on the outer peripheral surfaces of the side parts of the coupler seat plate; and
the force transmission plate is connected between the two side plates; one end of the force transmission plate is connected with the end beam of the underframe, and the other end of the force transmission plate is inclined upwards and extends to be connected with the lower surface of the upper cover plate; the force transmission plate is further connected with the plate surface of the coupler seat plate or the peripheral surface of the top of the coupler seat plate.
6. The draft sill structure of claim 5, wherein a top portion of said draft sill plate extends upwardly into welded connection with a lower surface of said upper deck plate; and the force transmission plate is connected with the plate surface of the car coupler seat plate in a welding mode.
7. The draft sill structure of claim 6, wherein said force transfer plate comprises:
one end of the first plate is used for being connected with an end beam of the underframe, and the other end of the first plate extends downwards obliquely and is connected with one plate surface of the coupler seat plate;
one end of the second plate is connected with the other plate surface of the coupler seat plate, and the other end of the second plate is inclined upwards and extends to be connected with the lower surface of the upper cover plate;
the first plate and the second plate are connected to the same height position of the coupler seat plate.
8. The draft sill structure of claim 5, wherein a reinforcing plate is further attached to an outer side of each of said side plates.
9. Undercarriage construction, characterized in that a draft sill construction according to any of the claims 1-8 is provided.
10. Rail vehicle, characterized in that an undercarriage construction according to claim 9 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022159300.8U CN213676689U (en) | 2020-09-27 | 2020-09-27 | Draw beam structure, chassis structure and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022159300.8U CN213676689U (en) | 2020-09-27 | 2020-09-27 | Draw beam structure, chassis structure and rail vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN213676689U true CN213676689U (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022159300.8U Active CN213676689U (en) | 2020-09-27 | 2020-09-27 | Draw beam structure, chassis structure and rail vehicle |
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| CN (1) | CN213676689U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113829007A (en) * | 2021-09-09 | 2021-12-24 | 中车石家庄车辆有限公司 | End-widening type single-piece middle beam and manufacturing method thereof |
| CN115027524A (en) * | 2022-05-14 | 2022-09-09 | 中车眉山车辆有限公司 | Lightweight draw beam assembly for heavy-duty truck |
-
2020
- 2020-09-27 CN CN202022159300.8U patent/CN213676689U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113829007A (en) * | 2021-09-09 | 2021-12-24 | 中车石家庄车辆有限公司 | End-widening type single-piece middle beam and manufacturing method thereof |
| CN115027524A (en) * | 2022-05-14 | 2022-09-09 | 中车眉山车辆有限公司 | Lightweight draw beam assembly for heavy-duty truck |
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