CN111845825A - Draw beam framework, chassis front end structure and rail vehicle - Google Patents
Draw beam framework, chassis front end structure and rail vehicle Download PDFInfo
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- CN111845825A CN111845825A CN202010750107.3A CN202010750107A CN111845825A CN 111845825 A CN111845825 A CN 111845825A CN 202010750107 A CN202010750107 A CN 202010750107A CN 111845825 A CN111845825 A CN 111845825A
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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
- B61F1/08—Details
- B61F1/10—End constructions
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Abstract
The invention provides a traction beam framework, an underframe front end structure and a railway vehicle, and relates to the technical field of traction beams of railway vehicles, wherein the traction beam framework comprises an upper cover plate, two vertical plates, a middle partition plate, a lower cover plate and a mounting plate, the middle partition plate is arranged below the upper cover plate, one end of the lower cover plate is connected with a sleeper beam, and the other end of the lower cover plate extends to the lower part of the middle partition plate; the mounting panel sets up between the extension end of apron and median septum down, still is equipped with the coupling mounting hole on the mounting panel. According to the traction beam framework provided by the invention, the mounting plate is fixed in the space formed by the middle partition plate, the lower cover plate and the two vertical plates, the original mounting seat is omitted, the space occupation is reduced, and the lightweight design is realized; the height of the position where the middle partition plate is connected with the mounting plate can be correspondingly adjusted through the bending shape of the middle partition plate, the structure can not only ensure the position accuracy of the mounting plate and the mounting hole, but also reduce the overall height of the mounting plate, and the effect of saving materials is achieved.
Description
Technical Field
The invention belongs to the technical field of traction beams of railway vehicles, and particularly relates to a traction beam framework, an underframe front end structure provided with the traction beam framework and a railway vehicle provided with the underframe front end structure.
Background
At present, the body structure of the urban rail vehicle in China is designed in a lightweight mode. In the design of a stainless steel vehicle body, the stainless steel vehicle body has the advantages of high strength and rigidity, strong corrosion resistance, low maintenance cost and the like. In the research of vehicle body light weight, generally, light weight design is respectively carried out on each component of a vehicle body structure, such as a component structure of an underframe, a side wall, a roof, an end wall and the like, and although the design mode contributes to the reduction of the vehicle body weight, the problem of poor integrity of the vehicle body structure is easily caused.
For a subway vehicle body, the front end part of the underframe generally comprises a sleeper beam, a draft sill, a side beam, an end beam, a supporting beam and part of reinforcing accessories, wherein the draft sill is a connecting part for installing a car coupler and is also the key point for loading and checking the vehicle body. The common draft sill generally adopts a symmetrical outward groove type plate structure, rivets a coupler mounting seat with rivets, and additionally adds a reinforcing plate according to requirements. The front end part of the whole underframe plays a role in fixing the frame, and the compression and tension working conditions borne by the coupler mounting seat can be transmitted to the whole car body structure. However, the coupler mounting seat is large in size and weight, and the arrangement of the rivets needs to be adjusted and optimized for multiple times, so that the light weight improvement of the underframe towing beam framework is difficult.
Disclosure of Invention
The invention aims to provide a draft sill framework, which aims to solve the technical problems that the draft sill framework in the prior art is greatly influenced by space and is difficult to design in a light weight mode.
In order to achieve the purpose, the invention adopts the technical scheme that: the traction beam framework is arranged on an underframe and comprises an upper cover plate, two vertical plates, a middle clapboard, a lower cover plate and a mounting plate, wherein the upper cover plate is connected to the underframe; the upper edges of the two vertical plates are connected with the bottom surface of the upper cover plate, and the two vertical plates are arranged in parallel along the direction of the vehicle body and are arranged at intervals along the width direction of the vehicle body; the middle partition plate is arranged between the two vertical plates and is positioned below the upper cover plate, one end of the middle partition plate is used for being connected with an end beam of the underframe, and the other end of the middle partition plate is inclined upwards and is connected with the bottom surface of the upper cover plate; the lower cover plate is arranged between the two vertical plates and 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 extends to the position below the middle partition plate; the mounting plate is arranged between the extending end of the lower cover plate and the extending end of the middle partition plate, and a coupler mounting hole is formed in the mounting plate; lightening holes are respectively arranged on the upper cover plate, the middle clapboard and the lower cover plate.
As another embodiment of the present application, the lower cover plate is obliquely disposed downward from the bolster to the end beam.
As another embodiment of this application, the extension end of lower apron is equipped with the face setting of perpendicular to the mounting panel and the connecting portion that link to each other with the lower terminal surface of mounting panel.
As another embodiment of the application, the end of the middle partition plate connected with the mounting plate is provided with a downward bent bulge, the bulge is provided with a plane used for being connected with the mounting plate, and an acute included angle is formed between the end of the middle partition plate connected with the upper cover plate and the upper cover plate.
As another embodiment of this application, the one end of median septum is equipped with and link up from top to bottom and the opening sets up towards the end beam first opening, and the other end is equipped with and link up from top to bottom and the opening sets up towards the second opening of upper cover plate setting.
As another embodiment of the present application, a third opening is further provided at the end of the upper cover plate connected to the end beam.
As another embodiment of this application, be equipped with two faces between riser and the end beam and follow the supplementary reinforcing plate that the horizontal direction set up, two supplementary reinforcing plates are located the outside of two risers respectively and correspond inside and outside with the median septum.
As another embodiment of the application, the two side edges of the upper cover plate respectively protrude out of the outer side surfaces of the two vertical plates, the bottom surface of the upper cover plate is used for being connected with the cross beam of the underframe, and the outer side surfaces of the vertical plates are used for being connected with the inner ends of the cross beam.
The invention provides a traction beam framework which has the beneficial effects that: compared with the prior art, the draft sill framework provided by the invention has the advantages that the mounting plate for connecting with the car coupler is fixed in the space formed by the middle partition plate, the lower cover plate and the two vertical plates, the original mounting seat is omitted while the connection strength with the car coupler is ensured, the space occupation is greatly reduced, the lightweight design is realized, and the material usage amount is reduced; the height of the position where the middle partition plate is connected with the mounting plate can be correspondingly adjusted through the bending shape of the middle partition plate, the structure can not only ensure the position accuracy of the mounting plate and the mounting hole, but also reduce the overall height of the mounting plate, and the effect of saving materials is achieved.
The invention also provides a front end structure of the underframe, and the front end structure of the underframe is provided with a traction beam framework.
The invention also provides a rail vehicle which is provided with the chassis front end structure.
The chassis front end structure and the rail vehicle provided by the invention have the beneficial effects that: compared with the prior art, the underframe front end structure and the railway vehicle provided by the invention have the advantages that the mounting plate for connecting the car coupler is fixed in the space formed by the middle partition plate, the lower cover plate and the two vertical plates, so that the connection strength with the car coupler is ensured, the space occupation is greatly reduced, the lightweight design of the traction beam and the underframe is realized, the energy conservation and emission reduction in the running process of the railway vehicle are facilitated, and the good economic benefit is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural view of a draft sill frame according to an embodiment of the present invention in one state;
FIG. 2 is a schematic structural view of another state of the trailing beam frame provided by an embodiment of the present invention;
FIG. 3 is a schematic structural view of the middle partition plate in FIG. 2;
FIG. 4 is a schematic structural view of the lower cover plate of FIG. 2;
FIG. 5 is a front cross-sectional structural view of FIG. 1;
FIG. 6 is a schematic view of the first plate of FIG. 5;
FIG. 7 is a schematic view of the second plate of FIG. 5;
fig. 8 is a schematic front view of the conventional draft sill and mounting bracket.
Wherein, in the figures, the respective reference numerals:
1. an upper cover plate; 11. a third opening; 12. lightening holes; 2. a vertical plate; 21. an auxiliary reinforcing plate; 3. a middle partition plate; 31. a protrusion; 32. a first opening; 33. a second opening; 34. a plate body; 4. a lower cover plate; 41. a connecting portion; 411. an anti-wear cushion layer; 5. mounting a plate; 51. a coupler mounting hole; 6. a chassis; 61. a cross beam; 62. an end beam; 63. a bolster; 71. a first reinforcing plate; 711. a first hole; 712. a second hole; 72. a second reinforcing plate; 721. a third aperture; 8. and (7) mounting a seat.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings and are used merely for convenience in describing and simplifying the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus are not to be considered limiting of the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a number" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 8 together, a draft sill frame, an underframe front end structure and a railway vehicle according to the present invention will now be described. The traction beam framework is used for being connected to the bottom frame 6 and comprises an upper cover plate 1, two vertical plates 2, a middle partition plate 3, a lower cover plate 4 and a mounting plate 5, wherein the upper cover plate 1 is used for being connected to the bottom frame 6; the upper edges of the two vertical plates 2 are connected with the bottom surface of the upper cover plate 1, and the two vertical plates 2 are arranged in parallel along the direction of the vehicle body and are arranged at intervals along the width direction of the vehicle body; the middle partition plate 3 is arranged between the two vertical plates 2 and is positioned below the upper cover plate 1, one end of the middle partition plate 3 is used for being connected with an end beam 62 of the underframe 6, and the other end of the middle partition plate 3 inclines upwards and is connected with the bottom surface of the upper cover plate 1; the lower cover plate 4 is arranged between the two vertical plates 2 and is positioned below the upper cover plate 1, one end of the lower cover plate 4 is used for being connected with a sleeper beam 63 of the underframe 6, and the other end of the lower cover plate 4 extends to the position below the middle partition plate 3; the mounting plate 5 is arranged between the extending end of the lower cover plate 4 and the extending end of the middle partition plate 3, and a coupler mounting hole 51 is further formed in the mounting plate 5; lightening holes 12 are respectively arranged on the upper cover plate 1, the middle clapboard 3 and the lower cover plate 4.
In this embodiment, cancelled the mount pad 8 among the current draw beam structure, effectively reduced the whole weight of draw beam framework, utilize upper cover plate 1, riser 2, median septum 3 and apron 4 to enclose the synthetic space that is used for placing mounting panel 5 down, adopt welded connection between each part. When the mounting plate 5 is pulled by a car coupler, the integral structure formed by the upper cover plate 1, the vertical plate 2, the middle partition plate 3 and the lower cover plate 4 can uniformly disperse force to the bottom frame 6 above, so that the stress of the mounting plate 5 is homogenized, and the stability of the integral structure of the traction beam framework is ensured.
The underframe 6 is an existing component arranged at the bottom of the vehicle, and the traction beam is arranged in the middle of the underframe 6 along the direction of the vehicle body. The two ends of the underframe 6 are respectively an end beam 62 and a sleeper beam 63 which are perpendicular to the running direction of the car body, a plurality of cross beams 61 are further distributed between the end beam 62 and the sleeper beam 63, and the cross beams 61 are respectively positioned at the two sides of the traction beam framework and used for realizing the reliable connection between the underframe 6 and the traction beam framework.
Compared with the prior art, the draft sill framework provided by the invention has the advantages that the mounting plate 5 for connecting with the car coupler is fixed in the space formed by the middle partition plate 3, the lower cover plate 4 and the two vertical plates 2, the original mounting seat 8 is omitted while the connection strength with the car coupler is ensured, the space occupation is greatly reduced, the lightweight design is realized, and the material usage amount is reduced; the height of the position where the middle partition plate 3 is connected with the mounting plate 5 can be correspondingly adjusted through the bending shape of the middle partition plate 3, the structure can not only ensure the position accuracy of the mounting plate 5 and the mounting hole, but also reduce the overall height of the mounting plate 5, and the material saving effect is achieved.
Referring to fig. 8, the original draft sill is welded by a plurality of plate-shaped members, and then the mounting base 8 is connected to the lower portion of the draft sill by riveting a plurality of rivets, so that the connection process is relatively complicated, the connection precision requirement is high, and the quick installation is not facilitated. In addition, in order to ensure the connection reliability with the coupler, the mounting seat 8 is provided as a unitary member having a large strength, which greatly increases the weight of the vehicle body. In addition, due to the existence of the plurality of riveted joints, the draft sill needs to have a large thickness to ensure the rigidity thereof, which is not favorable for realizing a lightweight design.
In this embodiment, in order to ensure the connection strength between the mounting plate 5 and the coupler, the thickness of the mounting plate 5 is greater than the thicknesses of the vertical plate 2, the middle partition plate 3 and the lower cover plate 4. The thickness of the mounting plate 5 is 25-40 mm, the thickness of other components is 8-12 mm, and the increase of the thickness of the mounting plate 5 is convenient for increasing the connection strength with the car coupler and ensures the connection reliability.
In this embodiment, the lower cover plate 4, the mounting plate 5 and the middle partition plate 3 are respectively provided with lightening holes 12. The position of lightening hole 12 should avoid the position that links to each other with mounting panel 5, and the shape of lightening hole 12 is set for according to actual space size, can be the round hole also can be the slot hole, all can realize the effect that lightens structure weight, is convenient for realize the lightweight of automobile body.
Furthermore, according to the installation requirements of the coupler system, a coupler installation hole 51 and a lightening hole 12 are formed in the installation plate 5, wherein the lightening hole 12 is difficult to be used as an inspection hole at the same time, and is selected and set according to the actual inspection position.
As a specific embodiment of the present invention, referring to fig. 2, 4 and 5, the lower cover plate 4 is obliquely disposed downward from the bolster beams 63 to the end beams 62. In this embodiment, one end of the lower cover plate 4 is connected to the sleeper beam 63, and the other end thereof gradually inclines downward to extend to the lower part of the middle partition plate 3, and is matched with the middle partition plate 3 and the vertical plate 2 to form a space for accommodating the mounting plate 5, and the space is fixedly connected with each edge of the mounting plate 5 through the above components. The mode of setting that the 4 syncline below of lower cover plate extended not only can save more spaces for 6 below of chassis, avoid taking place relative position with the bogie and interfere, the laying of other parts of also being convenient for simultaneously guarantees to leave great maintenance operation space.
In order to improve the reliability of being connected between apron 4 and upper cover plate 1 and riser 2 down, set up the first stiffening plate 71 that the face set up along upper and lower direction down between apron 4 and upper cover plate 1 down, the top edge and the upper cover plate 1 rigid coupling of first stiffening plate 71, the bottom edge and apron 4 rigid coupling down, both sides limit links to each other with the inboard face of riser 2 respectively, the setting of first stiffening plate 71 can be injectd the relative position of upper cover plate 1 and apron 4 down, when apron 4 both sides are connected with riser 2 down, still link to each other apron 4 and upper cover plate 1 down, in order to guarantee apron 4's positional stability down, realize the effective bearing to mounting panel 5.
Further, in order to achieve light weight, a first hole 711 is formed through the first reinforcing plate 71, the first hole 711 is located in the middle of the first reinforcing plate 71, and the first hole 711 is located near one side of the upper cover plate 1, so as to ensure the connection strength between the lower edge of the first reinforcing plate 71 and the lower cover plate 4. The two sides of the first hole 711 are symmetrically provided with second holes 712, the area of the second holes 712 is larger than that of the first holes 711, and the arrangement of the second holes 712 can not only realize weight reduction, but also realize through arrangement of pipelines. The edge of the second hole 712 is chamfered to prevent the second hole 712 from scratching the pipeline.
As a specific implementation manner of the embodiment of the present invention, referring to fig. 2, fig. 4 and fig. 5, the extending end of the lower cover plate 4 is provided with a connecting portion 41 which is perpendicular to the plate surface of the mounting plate 5 and connected to the lower end surface of the mounting plate 5. In this embodiment, the face of mounting panel 5 sets up along upper and lower direction, and the setting of connecting portion 41 can provide reliable mounting plane for the lower limb of mounting panel 5, has reliable bearing effect. When the mounting plate 5 is subjected to the pulling force of the car coupler in the subsequent process, the force can be dispersed to the middle partition plate 3, the lower cover plate 4 and the vertical plate 2, the uniform stress of the whole traction beam framework is realized, and the effect of uniformly bearing the load is realized.
Further, in order to avoid the connection strength between the lower cover plate 4 and the other external members, which affects the lower cover plate 4 and the mounting plate 5 due to friction, the anti-abrasion cushion layer 411 is arranged below the connecting portion 41, and the cushion layer can be made of a common flat steel plate or a patterned steel plate, so that the bottom surface of the connecting portion 41 can be protected, the integral integrity of the lower cover plate 4 is ensured, and the use performance of the structure is ensured.
Further, the design of bellied radian is carried out according to actual demand to lower apron 4, can cooperate the spatial arrangement of mounting panel 5 on the one hand, and the below space of apron 4 under the effectual increase of ability simultaneously provides reliable guarantee for the bogie turns to. Compare the form of direct downward slope, be equipped with the bellied radian that makes progress and be equivalent to and carry out the arching setting to apron 4 down, when mounting panel 5 received the pulling force of coupling, have the comprehensive action that apron 4 combines first stiffening plate 71 under the arching setting, can bear bigger tensile force, avoid the fracture that the pulling force was too big to be caused between each part, the effectual bulk strength that has improved the structure has guaranteed the stability and the reliability of draw beam pulling action.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3 and 5, a downward bent protrusion 31 is disposed at one end of the middle partition plate 3 connected to the mounting plate 5, the protrusion 31 is provided with a plane for connecting to the mounting plate 5, and an acute included angle is disposed between one end of the middle partition plate 3 connected to the upper cover plate 1 and the upper cover plate 1.
In this embodiment, the middle partition plate 3 is used for the position that links to each other with mounting panel 5 and buckles downwards and forms arch 31, on the one hand can cooperate the actual height of coupling to need, reduces the effect of mounting panel 5 height as far as possible, because mounting panel 5 has great thickness, under the prerequisite that does not change thickness, reduces the high lightweight of being convenient for realize the automobile body of mounting panel 5. On the other hand, when the mounting panel 5 is drawn by the coupler, the mounting panel 5 is drawn by the end beam 62, at the moment, the mounting panel 5 has an upward jacking effect on the middle partition plate 3, the middle partition plate 3 forms a jacking with one end of the end beam 62 in a butting manner, and an acute angle included angle is formed between the middle partition plate 3 and the upper cover plate 1, so that a reliable jacking effect can be realized, and the connection reliability between the upper cover plate 1 and the middle partition plate 3 is further improved on the basis of the mutual fixed connection between the middle partition plate 3 and the bottom surface of the upper cover plate 1.
A second stiffening plate 72 is also arranged between the middle partition plate 3 and the upper cover plate 1, and the plate surface of the second stiffening plate 72 is perpendicular to the trend of the vehicle body. The second reinforcing plate 72 connects the middle partition plate 3 with the upper cover plate 1, so that the stability of the bending shape of the middle partition plate 3 is guaranteed, and the accuracy of the installation position of the installation plate 5 is further guaranteed, so that accurate connection between the installation plate and a coupler is achieved. Be equipped with third hole 721 on the second stiffening plate 72, third hole 721 is equipped with two, and two third holes 721 symmetry settings on second stiffening plate 72 can reduce the weight of second stiffening plate 72, guarantee that lightweight design is required, can also reserve great space for wearing to establish of pipeline.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 3, one end of the middle partition plate 3 is provided with a first opening 32 penetrating up and down and having an opening facing the end beam 62, and the other end is provided with a second opening 33 penetrating up and down and having an opening facing the upper cover plate 1.
The median septum 3 sets up between both sides riser 2, and is located the below of upper cover plate 1, and the tip of median septum 3 and the medial surface welded connection of end beam 62 are the butt state between the two. On the one hand, the first opening 32 on the middle partition plate 3 can play a good weight reduction role, and meanwhile, effective jacking of the inner side faces of the middle partition plate 3 and the end beam 62 can be achieved, when the mounting plate 5 is pulled by the coupler on one side of the end beam 62, the middle partition plate 3 has a tendency of stretching towards two sides, and the middle partition plate 3 and the end beam 62 can have a more reliable jacking effect due to the arrangement of the first opening 32. After setting up first opening 32, form the effect of similar gusset between median septum 3 and the end beam 62, compare through the whole side of median septum 3 and end beam 62 butt, have better shoring stability, and then can utilize the butt effect between the two to guarantee the joint strength of the two, play the effect that increases structural strength.
Further, the opening width of the first opening 32 is smaller than the inner cavity width of the first opening 32, the opening end of the first opening 32 is provided with a plate body 34 extending inwards, the plate body 34 is in arc transition with the middle partition plate 3, the outer end of the first opening 32 is folded towards the center, on one hand, the connection area of the middle partition plate 3 and the end beam 62 is increased, meanwhile, the abutting effect can be improved, and the reliable jacking effect between the middle partition plate 3 and the end beam 62 is guaranteed.
The first opening 32 and the second opening 33 are arranged to ensure light weight, and meanwhile, a large operation space is provided for welding connection of subsequent components and arrangement of pipelines, installation operation is facilitated, and operation efficiency can be effectively improved. A circular lightening hole 12 with an area smaller than that of the first opening 32 and the second opening 33 is further arranged between the first opening 32 and the second opening 33, so that the overall weight of the middle clapboard 3 is further reduced, and the effect of lightening is realized.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, one end of the upper cover plate 1 connected to the end beam 62 is further provided with a third opening 11, and an opening width of the third opening 11 is smaller than an inner cavity width of the third opening 11. The third opening 11 can effectively reduce the self weight of the upper cover plate 1, and the part of the third opening 11 contacting with the end beam 62 is folded inwards, so that the contact area between the upper cover plate 1 and the end beam 62 is conveniently increased, and the connection reliability of the upper cover plate 1 and the end beam 62 is improved. Further, the opening width of the third opening 11 gradually increases from the side close to the bolster 63 to the side close to the end beam 62, so that the portions of the upper cover plate 1 located at the two sides of the third opening 11 form a structure of a support plate which opens outwards, which is convenient for enhancing the overall strength of the upper cover plate 1.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 3, two auxiliary reinforcing plates 21 are disposed between the vertical plate 2 and the end beam 62, and the two auxiliary reinforcing plates 21 are respectively located at the outer sides of the two vertical plates 2 and correspond to the inner and outer sides of the middle partition plate 3.
In this embodiment, the auxiliary reinforcing plate 21 is disposed on one side of the vertical plate 2 departing from the middle partition plate 3, and is flush with the middle partition plate 3, and the auxiliary reinforcing plate 21 and the middle partition plate 3 are welded to two side surfaces of the vertical plate 2 respectively. When the mounting panel 5 receives the pulling force of coupling, well baffle 3 very easily produces the effect of power to riser 2, supplementary reinforcing plate 21 then through with be connected between riser 2, can effectually offset the 3 influence to riser 2 of well baffle, improve the overall stability of component connection.
As a specific implementation manner of the embodiment of the present invention, two side edges of the upper cover plate 1 respectively protrude outward from outer side surfaces of the two vertical plates 2, a bottom surface of the upper cover plate 1 is used for being connected with a cross beam 61 of the underframe 6, and outer side surfaces of the vertical plates 2 are used for being connected with an inner end of the cross beam 61.
In this embodiment, the cross beams 61 on the bottom frame 6 are located at two sides below the upper cover plate 1, and the top surfaces of the inner ends of the cross beams 61 can form an effective support for the upper cover plate 1, so that the upper cover plate 1 can be stably kept at the position even when stressed. In addition, the inner of crossbeam 61 still links to each other with the lateral surface of riser 2, and when riser 2 upper edge links to each other with upper cover plate 1, the outside face to riser 2 carries on spacingly and guarantees that riser 2 is stable in vertical state, guarantees the reliable and stable of structure.
The invention also provides a front end structure of the underframe, and the front end structure of the underframe is provided with a traction beam framework.
The draw beam framework with the structure is arranged on the bottom frame 6, and the structure of the draw beam framework is greatly simplified compared with the traditional structure, so that the whole weight of the draw beam framework is effectively reduced, and the complex procedures of the mounting seat 8 during connection are omitted, so that the whole weight of the bottom frame 6 can be reduced, and the structural stability of the draw beam in the drawing process is improved.
The invention also provides a rail vehicle which is provided with the underframe front end structure. The rail vehicle adopts the chassis front end structure that has above-mentioned draw beam framework, under chassis front end structure bulk strength and structural stability's prerequisite, has reduced chassis front end structure's whole weight, has huge effect to the steady operation of guaranteeing the train, helps realizing the lightweight demand of vehicle.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The draw beam framework for set up on the chassis, its characterized in that includes:
the upper cover plate is connected to the bottom frame;
the upper edges of the two vertical plates are connected with the bottom surface of the upper cover plate, and the two vertical plates are arranged in parallel along the direction of the vehicle body and are arranged at intervals along the width direction of the vehicle body;
the middle partition plate is arranged between the two vertical plates and is positioned below the upper cover plate, one end of the middle partition plate is used for being connected with the end beam of the underframe, and the other end of the middle partition plate is inclined upwards and is connected with the bottom surface of the upper cover plate;
the lower cover plate is arranged between the two vertical plates and 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 extends to the position below the middle partition plate; and
the mounting plate is arranged between the extending end of the lower cover plate and the extending end of the middle partition plate, and a coupler mounting hole is formed in the mounting plate;
and the upper cover plate, the middle partition plate and the lower cover plate are respectively provided with lightening holes.
2. The trailing beam frame of claim 1, wherein the under cover plate is disposed obliquely downward from the bolster to the end beam.
3. The trailing beam structure of claim 2, wherein the extended end of the lower cover plate is provided with a coupling portion disposed perpendicular to the plate surface of the mounting plate and coupled to the lower end surface of the mounting plate.
4. The trailing beam frame of claim 1, wherein the end of the center spacer attached to the mounting plate has a downwardly bent protrusion with a flat surface for attachment to the mounting plate, and the end of the center spacer attached to the upper cover plate has an acute included angle with the upper cover plate.
5. The trailing beam frame according to claim 4, wherein the center spacer has a first opening extending therethrough in a vertical direction with the opening being disposed toward the end beam at one end thereof and a second opening extending therethrough in a vertical direction with the opening being disposed toward the upper cover plate at the other end thereof.
6. The trailing beam frame of claim 5, wherein the end of the upper cover plate attached to the end beam is further provided with a third opening.
7. The trailing beam framework of any one of claims 1-6, wherein two auxiliary reinforcing plates are disposed between the vertical plates and the end beams, the two auxiliary reinforcing plates being disposed horizontally on the outer sides of the vertical plates and corresponding to the inner and outer sides of the middle partition plate.
8. The draft sill frame according to any of claims 1 to 6, wherein both side edges of said upper cover plate are respectively protruded outwardly of outer side surfaces of said vertical plates, a bottom surface of said upper cover plate is adapted to be connected to a cross member of said underframe, and outer side surfaces of said vertical plates are adapted to be connected to inner ends of said cross member.
9. Undercarriage front end structure characterized in that it is provided with a trailing beam frame according to any one of claims 1-8.
10. Rail vehicle, characterized in that it is provided with an underframe front end structure according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010750107.3A CN111845825B (en) | 2020-07-30 | 2020-07-30 | Draw beam framework, chassis front end structure and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010750107.3A CN111845825B (en) | 2020-07-30 | 2020-07-30 | Draw beam framework, chassis front end structure and rail vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111845825A true CN111845825A (en) | 2020-10-30 |
| CN111845825B CN111845825B (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010750107.3A Active CN111845825B (en) | 2020-07-30 | 2020-07-30 | Draw beam framework, chassis front end structure and rail vehicle |
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| CN107856688A (en) * | 2017-11-14 | 2018-03-30 | 中车长春轨道客车股份有限公司 | Delay the lightweight Subway Body of structure with new pillow pulling |
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| CN202147694U (en) * | 2010-12-10 | 2012-02-22 | 南车青岛四方机车车辆股份有限公司 | Rail vehicle traction beam |
| CN202703611U (en) * | 2012-05-24 | 2013-01-30 | 长春轨道客车股份有限公司 | Car underframe draft sill mechanism |
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| CN111845825B (en) | 2021-06-29 |
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