CN110027586B - Car body chassis boundary beam structure and car body with same - Google Patents
Car body chassis boundary beam structure and car body with same Download PDFInfo
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- CN110027586B CN110027586B CN201910378348.7A CN201910378348A CN110027586B CN 110027586 B CN110027586 B CN 110027586B CN 201910378348 A CN201910378348 A CN 201910378348A CN 110027586 B CN110027586 B CN 110027586B
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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
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Abstract
The invention relates to the technical field of railway vehicle manufacturing, and discloses a vehicle body underframe boundary beam structure and a vehicle body with the same, wherein the vehicle body underframe boundary beam structure comprises: the car body underframe upper side beam structure comprises a car body inner side rib plate which is arranged on the upper plane of a car body floor and extends upwards; and a lower side beam structure of the vehicle body underframe, which comprises an upper plane arranged on the vehicle body floor and a vehicle body outer side main bearing vertical rib extending downwards and a vehicle body inner side main bearing vertical rib arranged oppositely to the vehicle body outer side main bearing vertical rib, wherein the thickness of the vehicle body outer side main bearing vertical rib is equal to and greater than the thickness of the vehicle body inner side main bearing vertical rib. The side beam structure of the vehicle body underframe has the advantages of high structural strength, good rigidity and capability of meeting the requirements of hanging and installing the side beam of the equipment under the train of the urban subway platform train.
Description
Technical Field
The invention relates to the technical field of railway vehicle manufacturing, in particular to a vehicle body underframe boundary beam structure and a vehicle body with the same.
Background
The weight of single equipment installed on the boundary beam of the existing urban rail vehicle underframe is generally less than 2 tons, when the equipment is applied to a 25kV (kilovolt) line, a traction transformer with the weight close to 4 tons and a current transformer with the weight exceeding 2 tons need to be specially installed, and the original boundary beam structure cannot bear the load.
The motor train unit applied to the 25kV line is generally only provided with passenger room doors (except for the sleeper beam) at two ends, the transformer under the motor train unit is integrally supported by the side beams of the underframe and the side walls, and the existing side beam structure can bear the load.
The inter-city motor train unit under-train equipment also reaches the level of 4 tons, but the scheme of hanging the cross beam of the underframe is adopted, and the requirement on the side beam is not high.
However, urban subway platform trains up to 140 km and above are generally applied to 25kV lines, and the weight of equipment under the train is no more than that of ordinary subways; and urban subway train generally sets up two to three pairs of passenger room doors within the sleeper beam, and the structural strength in automobile body chassis boundary beam and the sleeper inner door district is often weaker, therefore, can't satisfy the requirement that the equipment boundary beam hangs and installs under the car of urban subway platform train.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a vehicle body underframe boundary beam structure and a vehicle body with the same, and at least solves the technical problem that the requirements of hanging and installing boundary beams of equipment under a subway platform train in a city area cannot be met due to weak structural strength of the vehicle body underframe boundary beam and a sleeper inner door area in the prior art.
(II) technical scheme
In order to solve the above-described technical problem, according to a first aspect of the present invention, there is provided a vehicle body underframe side sill structure comprising: the car body underframe upper side beam structure comprises a car body inner side rib plate which is arranged on the upper plane of a car body floor and extends upwards; and a lower side beam structure of the vehicle body underframe, which comprises an upper plane arranged on the vehicle body floor and a vehicle body outer side main bearing vertical rib extending downwards and a vehicle body inner side main bearing vertical rib arranged oppositely to the vehicle body outer side main bearing vertical rib, wherein the thickness of the vehicle body outer side main bearing vertical rib is equal to and greater than the thickness of the vehicle body inner side main bearing vertical rib.
The upper edge beam structure of the car body underframe further comprises a car body outer side rib plate which is arranged on the upper plane of the car body floor and extends upwards, and the thickness of the car body inner side rib plate is larger than that of the car body outer side rib plate.
The vehicle body outer side rib plate is connected with the vehicle body outer side main bearing vertical rib in an integrated mode.
The vehicle chassis upper boundary beam structure further comprises a horizontal rib arranged between the vehicle body outer side rib plate and the vehicle body inner side rib plate, wherein the first end of the horizontal rib is integrally connected with the vehicle body inner side rib plate, and the second end of the horizontal rib is integrally connected with the vehicle body outer side rib plate.
Wherein, the horizontal muscle is a plurality of and is vertical from the bottom up in proper order and is the interval formula setting.
The upper edge beam structure of the car body underframe further comprises first inclined ribs arranged between the inner side rib plate of the car body and the outer side rib plate of the car body, wherein one first inclined rib is additionally arranged between every two adjacent horizontal ribs.
The vehicle chassis lower edge beam structure comprises a vehicle body outer side main bearing vertical rib and a vehicle body inner side main bearing vertical rib, wherein the vehicle body outer side main bearing vertical rib and the vehicle body inner side main bearing vertical rib are connected with the lower edge rib at the bottom end of the vehicle body outer side main bearing vertical rib and the vehicle body inner side main bearing vertical rib respectively.
The vehicle body chassis lower edge beam structure further comprises a second horizontal rib arranged above the lower edge rib and a third horizontal rib arranged above the second horizontal rib, wherein the thickness of the second horizontal rib is equal to that of the third horizontal rib, and the thickness of the third horizontal rib is smaller than that of the lower edge rib.
The main bearing vertical rib on the outer side of the vehicle body comprises a first section of vertical rib arranged between the lower edge rib and the second horizontal rib, a second section of vertical rib arranged between the second horizontal rib and the third horizontal rib, and a third section of vertical rib arranged between the third horizontal rib and the vehicle body floor, wherein the thickness of the first section of vertical rib and the thickness of the second section of vertical rib are equal and are all larger than that of the third section of vertical rib.
The lower edge beam structure of the car body underframe further comprises a first connecting rib which is arranged on the inner side of the car body and is arranged at intervals with the third section of vertical rib along the width direction of the car body, wherein the lower end of the first connecting rib is connected with the third horizontal rib in an integrated manner, and the upper end of the first connecting rib is connected with the upper plane of the car body floor in an integrated manner.
The vehicle body underframe lower edge beam structure further comprises a first oblique rib arranged between the first connecting rib and the third section of vertical rib.
The vehicle body chassis lower boundary beam structure further comprises a top wall rib used for supporting and installing electrical equipment, the top wall rib is located on the inner side of the vehicle body and connected with the second horizontal rib in an integrated mode, and the height of the horizontal plane where the top wall rib is located is the same as that of the horizontal plane where the second horizontal rib is located.
And the thickness of the top wall rib is more than or equal to that of the first section of vertical rib and less than or equal to that of the second horizontal rib.
The vehicle body chassis lower boundary beam structure further comprises a second oblique rib, the first end of the second oblique rib is connected with the top wall rib in an integrated mode, and the second end of the second oblique rib is connected with the bottom end of the vehicle body inner side main bearing vertical rib in an integrated mode.
The lower edge beam structure of the car body underframe further comprises a second connecting rib arranged below the car body floor, the first end of the second connecting rib is connected with the first connecting rib in an integrated mode, and the second end of the second connecting rib is constructed as a free end.
The side beam structure of the car body underframe further comprises a car body floor mounting groove, and the outer side wall of the car body floor mounting groove is connected with the free end of the second connecting rib in an integrated mode.
The side beam structure of the car body underframe further comprises a car body side wall mounting groove arranged at the upper end between the car body inner side rib plate and the car body outer side rib plate.
The vehicle body underframe boundary beam structure also comprises an interior floor mounting groove which is arranged on the upper plane of the vehicle body floor and is positioned at the inner side of the rib plate at the inner side of the vehicle body.
Wherein, lower doorways which are arranged oppositely are respectively constructed on the inner side rib plate and the outer side rib plate of the vehicle body, and passenger room door corners are respectively constructed in the lower areas of the left side and the right side of the lower doorways.
According to the second aspect of the application, the vehicle body is further provided and comprises the vehicle body underframe boundary beam structure.
(III) advantageous effects
Compared with the prior art, the side beam structure of the underframe of the car body provided by the invention has the following advantages:
this application is according to the load condition and the condition of stress distribution of automobile body chassis boundary beam structure, comes each gusset in to automobile body chassis boundary beam structure to carry out the optimal combination to reach the mesh that strengthens automobile body chassis boundary beam structure's overall structure intensity. Namely, the side beam structure of the vehicle body underframe is thinned at the place with smaller stress, the side beam structure of the vehicle body underframe is thickened at the place with larger stress, because the side beam structure of the underframe of the car body has larger contribution to the rigidity in the height direction, by enabling the thickness of the main bearing vertical rib at the outer side of the car body to be equal to the thickness of the main bearing vertical rib at the inner side of the car body and to be larger than the thickness of the rib at the inner side of the car body, thus, on the basis of the prior art, the thickness of the main bearing vertical rib at the outer side of the vehicle body and the thickness of the main bearing vertical rib at the inner side of the vehicle body are respectively thickened correspondingly, therefore, the rigidity of the side beam structure of the vehicle body underframe in the longitudinal direction is greatly improved, and further, the overall structural strength of the side beam structure of the vehicle body underframe is effectively enhanced, so that the side beam hanging and installing requirements of under-vehicle equipment of a subway platform train in a city area can be met.
Drawings
FIG. 1 is a schematic cross-sectional structural view of a vehicle body underframe side beam structure according to an embodiment of the application;
FIG. 2 is a schematic view of a lower doorway for a body underframe side beam structure according to an embodiment of the present application;
fig. 3 is a schematic view of an installation structure of a vehicle body underframe side beam structure and a mounted electrical device according to an embodiment of the application.
In the figure, 1: an upper side beam structure of the underframe of the vehicle body; 11: a rib plate at the inner side of the vehicle body; 12: a vehicle body outer side rib plate; 13: horizontal ribs; 14: a first diagonal rib; 2: a lower side beam structure of a vehicle body underframe; 21: the outer side of the vehicle body mainly bears vertical ribs; 211: a first section of vertical ribs; 212: a second section of vertical ribs; 213: a third section of vertical ribs; 22: the inner side of the vehicle body mainly bears vertical ribs; 23: a lower edge rib; 24: a second horizontal rib; 25: a third horizontal rib; 26: a first connecting rib; 27: a first diagonal rib; 28: a top wall rib; 29: a second diagonal rib; 3: a second connecting rib; 4: a vehicle body floor mounting groove; 5: a vehicle body side wall mounting groove; 6: a floor mounting groove is arranged in the inner part; 200: an upper plane of the vehicle body floor; 400: a lower doorway; 401: a passenger room door corner; 500: an electrical appliance.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 3, the vehicle body underframe side sill structure is schematically shown to include a vehicle body underframe upper side sill structure 1 and a vehicle body underframe lower side sill structure 2.
In the embodiment of the present application, the vehicle body underframe roof side rail structure 1 includes an inboard side rib plate 11 provided on the upper plane 200 of the vehicle body floor and extending upward. Wherein, the inner side rib plate 11 of the vehicle body and the upper plane 200 of the vehicle body floor are manufactured as an integral body.
The vehicle chassis lower beam structure 2 includes a vehicle outer side main bearing vertical rib 21 which is arranged on an upper plane 200 of a vehicle floor and extends downwards and a vehicle inner side main bearing vertical rib 22 which is arranged oppositely to the vehicle outer side main bearing vertical rib 21, wherein the thickness of the vehicle outer side main bearing vertical rib 21 is equal to the thickness of the vehicle inner side main bearing vertical rib 22 and is larger than the thickness of the vehicle inner side rib plate 11. Specifically, this application is according to the load condition and the condition of stress distribution of automobile body chassis boundary beam structure, comes to optimize the combination to each gusset in the automobile body chassis boundary beam structure to reach the mesh that strengthens automobile body chassis boundary beam structure's overall structure intensity. Namely, the side beam structure of the vehicle body underframe is thinned at the place with smaller stress, the side beam structure of the vehicle body underframe is thickened at the place with larger stress, since the body underframe side beam structure contributes greatly to the rigidity in the height direction, by making the thickness of the body outside main bearing vertical rib 21 equal to the thickness of the body inside main bearing vertical rib 22 and both greater than the thickness of the body inside rib plate 11, thus, on the basis of the prior art, the thickness of the main bearing vertical rib 21 at the outer side of the vehicle body and the thickness of the main bearing vertical rib 22 at the inner side of the vehicle body are respectively thickened correspondingly, therefore, the rigidity of the side beam structure of the vehicle body underframe in the longitudinal direction is greatly improved, and further, the overall structural strength of the side beam structure of the vehicle body underframe is effectively enhanced, so that the side beam hanging and installing requirements of under-vehicle equipment of a subway platform train in a city area can be met.
In a preferred embodiment, the thickening of the vehicle body outside main load-bearing vertical bead 21 and the vehicle body inside main load-bearing vertical bead 22 relative to the vehicle body vertical bead of the prior art is in a range of 8 mm or more and 10 mm or less. Of these, a thickening of 10 mm is preferred.
The size range of the thickening of the vehicle body inner side rib plate 11 is greater than or equal to 6 mm and less than or equal to 8 mm, wherein the thickening is preferably 8 mm.
It should be further noted that the preferred aluminum alloy material that adopts of this car body chassis roof side rail structure 1 and car body chassis rocker structure 2 is made and is formed, because the aluminum alloy material has the advantage that structural strength is high, therefore for car body chassis roof side rail structure 1 and car body chassis rocker structure 2 all adopt the aluminum alloy material to make and form, can effectively improve holistic structural strength and the rigidity of car body chassis rocker structure.
As shown in fig. 1 and 3, in a preferred embodiment of the present application, the vehicle body underframe roof side rail structure 1 further includes an outer side car body gusset 12 disposed on an upper plane 200 of the car body floor and extending upward. The thickness of the inner side gusset 11 is larger than that of the outer side gusset 12. Specifically, through thickening the inboard gusset 11 of automobile body, on the one hand, can satisfy the longitudinal load requirement of automobile body chassis boundary beam structure, and on the other hand, in the in-process of making automobile body chassis boundary beam structure, door 400 can directly be processed out in the region that this automobile body chassis boundary beam structure corresponds the passenger room door to lower part region mill out passenger room door angle 401 in door 400 both sides down, through carrying out thickening to inboard gusset 11 of automobile body, can ensure to process out door 400 and passenger room door angle 401 down after, also can satisfy the structural strength requirement in automobile body and door district.
In a preferred embodiment, the outboard rib 12 is integrally connected to the outboard main load-bearing vertical rib 21. The term "integrally joined" means integrally extrusion molding. The mode of adopting integral type extrusion, can not have the welding seam between interconnect's part to also indirectly reached the mesh that effectively improves the overall structure intensity of automobile body chassis boundary beam structure.
In a preferred embodiment of the present application, as shown in fig. 1, in order to further optimize the roof side rail structure 1 of the vehicle body underframe in the above technical solution, on the basis of the above technical solution, the roof side rail structure 1 of the vehicle body underframe further includes a horizontal rib 13 disposed between the outer side rib plate 12 of the vehicle body and the inner side rib plate 11 of the vehicle body. Wherein, the first end of the horizontal rib 13 is connected with the inner side rib plate 11 of the vehicle body in an integrated manner, and the second end of the horizontal rib 13 is connected with the outer side rib plate 12 of the vehicle body in an integrated manner. Specifically, the horizontal rib 13 is also integrally extruded. The horizontal ribs 13 can enhance the connection strength between the rib plates 11 on the inner side of the car body and the rib plates 12 on the outer side of the car body on the one hand, and can effectively control the deformation degree of the rib plates 11 on the inner side of the car body and the rib plates 12 on the outer side of the car body on the other hand, and meanwhile, can effectively reduce the stress of a door corner area of a passenger room, and avoid the condition that the door corner area of the passenger room has structural failure due to overlarge stress of the door corner area of the passenger room.
In a preferred embodiment of the present application, the horizontal ribs 13 are plural and are arranged at intervals in the longitudinal direction from bottom to top. It should be noted that the number of the horizontal ribs 13 can be flexibly adjusted according to the actual longitudinal load requirement of the side beam structure of the car body underframe, and the number of the horizontal ribs 13 is not specifically limited.
In a preferred embodiment, the roof side rail structure 1 of the car body underframe further comprises a first diagonal rib 14 arranged between the inner side rib plate 11 and the outer side rib plate 12 of the car body, wherein one first diagonal rib 14 is additionally arranged between two adjacent horizontal ribs 13. Specifically, the first tilted rib 14 is arranged to further enhance the connection strength between the inner side rib 11 and the outer side rib 12 of the vehicle body on the basis of the horizontal rib 13, and to further effectively control the deformation degree of the inner side rib 11 and the outer side rib 12 of the vehicle body under the condition of the overload.
As shown in fig. 1 and 3, in a preferred embodiment of the present application, the vehicle body underframe rocker structure 2 includes a lower rib 23 disposed between and connecting bottom ends of the vehicle body outside main load-bearing vertical rib 21 and the vehicle body inside main load-bearing vertical rib 22, respectively. It should be noted that, in order to enhance the structural strength of the lower bead 23, the lower bead 23 may be thickened, that is, the lower bead 23 may be thickened by 8 mm to 10 mm.
In a preferred embodiment, the vehicle body underframe rocker structure 2 further comprises a second horizontal bead 24 disposed above the lower bead 23 and a third horizontal bead 25 disposed above the second horizontal bead 24.
Wherein, the thickness of the second horizontal rib 24 and the thickness of the third horizontal rib 25 are equal and are both smaller than the thickness 23 of the lower edge rib. Like this, according to the load condition and the stress distribution condition of automobile body chassis boundary beam structure on vertical, come to optimize each gusset thickness in the automobile body chassis boundary beam structure, promptly, carry out thickening to the great gusset of atress, carry out attenuate to the less gusset of atress and handle to under the unchangeable condition of the whole weight of guaranteeing automobile body chassis boundary beam structure, reach the purpose that improves the overall structure intensity of automobile body chassis boundary beam structure effectively.
It should be noted that, because the stress strength of the second horizontal rib 24 and the third horizontal rib 25 is smaller than the stress strength of the lower edge rib 23, the second horizontal rib 24 and the third horizontal rib 25 can be thinned, and the lower edge rib 23 can be thickened. It should be noted that it is preferable that the thinned thickness is equal to the thickened thickness or slightly different from the thickened thickness.
It should be noted that, the specific range of thickening and thinning is not limited in the present application, and can be flexibly changed according to the actual situation.
As shown in fig. 1, in a preferred embodiment of the present application, the main vehicle body outer side load-bearing vertical rib 21 includes a first section vertical rib 211 disposed between the lower rib 23 and the second horizontal rib 24, a second section vertical rib 212 disposed between the second horizontal rib 24 and the third horizontal rib 25, and a third section vertical rib 213 disposed between the third horizontal rib 25 and the vehicle body floor.
The thicknesses of the first section of vertical rib 211 and the second section of vertical rib 212 are equal and are both greater than the thickness of the third section of vertical rib 213. It should be noted that, for the thinning processing of the first section of vertical rib 211, the second section of vertical rib 212, and the third section of vertical rib 213, the thickness should not be greater than 2 mm, and the thickness is in smooth transition, so as to avoid the situation that the stress is concentrated due to the abrupt change of the thickness.
In a preferred embodiment, the vehicle body underframe rocker structure 2 further comprises a first connecting rib 26 disposed on the vehicle body inner side and spaced from the third-stage vertical rib 213 in the width direction of the vehicle body.
Wherein, the lower end of the first connecting rib 26 is connected with the third horizontal rib 25 in an integrated manner, and the upper end of the first connecting rib 26 is connected with the upper plane 200 of the vehicle body floor in an integrated manner. The first connecting rib 26, the third horizontal rib 25, the third section of vertical rib 213 and the vehicle body floor together form a first quadrilateral structure, and the first quadrilateral structure is similar to an irregular quadrilateral structure.
Similarly, the second horizontal rib 24, the second section of the vertical rib 212, the third horizontal rib 25 and the upper portion of the main bearing vertical rib 22 on the inner side of the vehicle body form a second quadrilateral structure, and the second quadrilateral structure is similar to a square or rectangular structure.
As shown in fig. 1, in order to further optimize the vehicle body underframe rocker structure 2 in the above technical solution, on the basis of the above technical solution, the vehicle body underframe rocker structure 2 further includes a first oblique rib 27 disposed between the first connecting rib 26 and the third-stage vertical rib 213. It should be noted that the strength and stability of the first quadrilateral structure can be further enhanced by the arrangement of the first oblique rib 27.
It should be noted that the inclination direction and the inclination angle of the first oblique rib 27 are not particularly limited, and the orientation shown in the first oblique rib 27 in the drawings is only an example.
As shown in fig. 1, the lower side frame structure 2 of the car body underframe further comprises a top wall rib 28 for supporting the electrical equipment 500, the top wall rib 28 is located on the inner side of the car body and is connected with the second horizontal rib 24 in an integrated manner, wherein the height of the horizontal plane where the top wall rib 28 is located is the same as the height of the horizontal plane where the second horizontal rib 24 is located. Specifically, the horizontal plane height at this top wall muscle 28 place is the same with the horizontal plane height at this second horizontal muscle 24 place to can realize this top wall muscle 28 and this second horizontal muscle 24's integral type more smoothly and be connected, reach integral type extrusion's purpose, this for welding and detachable connection, also improved the structural strength of automobile body chassis boundary beam structure to a certain extent effectively.
In addition, because the top wall rib 28 is directly brought out when the side beam structure of the vehicle underframe is extruded, the electrical equipment 500 can be supported and installed on the upper surface of the top wall rib 28, and the top wall rib 28 serving as a base material is prevented from being welded, so that the structural strength of the top wall rib 28 is effectively improved.
The electrical device 500 may be a transformer, a converter, or the like.
In another preferred embodiment, the thickness of the top wall rib 28 is greater than or equal to the thickness of the first section vertical rib 211 and less than or equal to the thickness of the second horizontal rib 24.
It should be noted that, because the top wall rib 28 needs to support the electrical equipment 500, however, the weight of the electrical equipment 500 for a common subway is often light, in order to control the weight of the vehicle body, the top wall rib 28 and the second oblique rib 29 may be thinned appropriately, and the specific thinning range may be determined specifically according to the actual stressed load requirement.
As shown in fig. 1 and 3, in a preferred embodiment of the present application, the vehicle body underframe rocker structure 2 further comprises a second diagonal rib 29, a first end of the second diagonal rib 29 is integrally connected with the top wall rib 28, and a second end of the second diagonal rib 29 is integrally connected with a bottom end of the main vehicle body inner side load bearing vertical rib 22. It should be noted that the second oblique rib 29, the top wall rib 28 and the main vehicle body inner side bearing vertical rib 22 form a triangular structure together, and the stability of the triangular structure is strong, so that the overall stability and structural strength of the vehicle body underframe and side beam structure can be effectively improved.
In a preferred embodiment, as shown in fig. 1, the vehicle body underframe rocker structure 2 further comprises a second connecting rib 3 disposed under the vehicle body floor, a first end of the second connecting rib 3 is integrally connected with the first connecting rib 26, and a second end of the second connecting rib 3 is configured as a free end. Note that the second connecting rib 3 is provided to provide an installation space for installing a vehicle body floor installation groove 4 described below.
In another preferred embodiment, the vehicle body underframe side beam structure further comprises a vehicle body floor mounting groove 4, and the outer side wall of the vehicle body floor mounting groove 4 is integrally connected with the free end of the second connecting rib 3. This automobile body floor mounting groove 4's opening is towards the top, and the left and right both sides on automobile body floor overlap joint respectively in the floor mounting groove 4 of corresponding side, that is to say, adopt the lapped mode be convenient for automobile body floor and the installation and the welding of the automobile body chassis boundary beam structure of this application, for traditional grafting structure, reduced welding frock and anchor clamps to automobile body floor and boundary beam assembly welding's time has been saved widely.
In a preferred embodiment of the application, as shown in fig. 1, the vehicle body underframe side beam structure further comprises a vehicle body side wall mounting groove 5 provided at an upper end between the vehicle body inside rib plate 11 and the vehicle body outside rib plate 12. It should be noted that, the arrangement of the vehicle body side wall mounting groove 5 can facilitate the fixed mounting of the vehicle body side wall, that is, the bottom end of the vehicle body side wall is lapped in the vehicle body side wall mounting groove 5.
In a preferred embodiment of the present application, as shown in fig. 1, the vehicle body underframe side sill structure further comprises an interior floor mounting groove 6 disposed at the upper plane of the vehicle body floor and located inside the vehicle body interior side gusset 11. It should be noted that the subfloor installation groove 6 can be used for installing a subfloor. This built-in floor mounting groove 6 sets up the left and right sides at the automobile body respectively along the width direction of automobile body, then installs the both sides on this built-in floor mounting groove 6 of corresponding side respectively with the both sides on built-in floor, can realize the fixed mounting to built-in floor, and this mounting means can prevent the subway both sides effectively and stick up the emergence of limit phenomenon.
It should be noted that references to "front", "back", "left" and "right" in the description of the present application are made with respect to the orientation currently presented in fig. 1.
As shown in fig. 2, it is schematically shown that lower doorways 400 are formed in an opposing manner on both the vehicle body inside rib plate 11 and the vehicle body outside rib plate 12, and passenger compartment door corners 401 are formed in lower regions on both left and right sides of the lower doorways 400, respectively.
It should be further noted that, the car body underframe roof side rail structure 1 of the present application is arranged on the upper plane 200 of the car body floor and above the car body underframe roof side rail structure 2, which is equivalent to heightening the existing car body underframe roof side rail structure in the longitudinal direction, and the purpose of heightening is to directly machine the lower door opening 400 on the car body underframe roof side rail structure 1, so that the procedure of machining an aluminum plate into a door corner shape and then welding the door corner to the side beam and the side wall is omitted.
It should be noted that the vehicle body floor mounting groove 4, the vehicle body side wall mounting groove 5 and the interior floor mounting groove 6 are all formed by direct extrusion, so that the situation of welding is omitted, and the structural strength of each mounting groove is ensured.
According to the second aspect of the application, the vehicle body is further provided and comprises the vehicle body underframe boundary beam structure.
To sum up, this application comes each gusset in the vehicle body chassis boundary beam structure to carry out the optimal combination according to the load condition and the condition of stress distribution of vehicle body chassis boundary beam structure to reach the mesh of reinforcing vehicle body chassis boundary beam structure's overall structure intensity. Namely, the side beam structure of the vehicle body underframe is thinned at the place with smaller stress, the side beam structure of the vehicle body underframe is thickened at the place with larger stress, because the requirement of the side beam structure of the underframe of the car body on the rigidity in the height direction is higher, therefore, by making the thickness of the main load-bearing vertical rib 21 outside the vehicle body equal to the thickness of the main load-bearing vertical rib 22 inside the vehicle body and both greater than the thickness of the rib plate 11 inside the vehicle body, thus, on the basis of the prior art, the thickness of the main bearing vertical rib 21 at the outer side of the vehicle body and the thickness of the main bearing vertical rib 22 at the inner side of the vehicle body are respectively thickened correspondingly, therefore, the rigidity of the side beam structure of the vehicle body underframe in the longitudinal direction is greatly improved, and further, the overall structural strength of the side beam structure of the vehicle body underframe is effectively enhanced, so that the side beam hanging and installing requirements of under-vehicle equipment of a subway platform train in a city area can be met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (17)
1. The utility model provides a car body chassis boundary beam structure which characterized in that includes:
the car body underframe upper side beam structure comprises a car body inner side rib plate which is arranged on the upper plane of a car body floor and extends upwards; and
the lower beam structure of the car body underframe comprises a car body outer side main bearing vertical rib arranged on a lower plane of a car body floor and a car body inner side main bearing vertical rib arranged opposite to the car body outer side main bearing vertical rib, wherein the thickness of the car body outer side main bearing vertical rib is equal to that of the car body inner side main bearing vertical rib and is larger than that of the car body inner side rib;
the upper side beam structure of the car body underframe also comprises a car body outer side rib plate which is arranged on the upper plane of the car body floor and extends upwards, and the thickness of the car body inner side rib plate is larger than that of the car body outer side rib plate;
the lower beam structure of the vehicle body underframe comprises lower ribs which are arranged between the main bearing vertical rib at the outer side of the vehicle body and the main bearing vertical rib at the inner side of the vehicle body and are respectively connected with the bottom ends of the main bearing vertical rib at the outer side of the vehicle body and the main bearing vertical rib at the inner side of the vehicle body;
the lower side beam structure of the car body underframe further comprises a second horizontal rib arranged above the lower side rib and a third horizontal rib arranged above the second horizontal rib, wherein the thickness of the second horizontal rib and the thickness of the third horizontal rib are equal and smaller than the thickness of the lower side rib.
2. The vehicle chassis edge beam structure of claim 1, wherein the vehicle body outer side gusset is integrally connected with the vehicle body outer side main load-bearing vertical rib.
3. The vehicle body underframe boundary beam structure according to claim 1, further comprising a horizontal bar arranged between the vehicle body outside rib plate and the vehicle body inside rib plate, wherein a first end of the horizontal bar is integrally connected with the vehicle body inside rib plate, and a second end of the horizontal bar is integrally connected with the vehicle body outside rib plate.
4. The vehicle body underframe edge beam structure of claim 3, wherein the horizontal ribs are multiple and arranged at intervals along the longitudinal direction from bottom to top.
5. The vehicle body underframe side sill structure according to claim 4, further comprising a first diagonal rib arranged between the inner side rib plate and the outer side rib plate of the vehicle body, wherein one first diagonal rib is additionally arranged between two adjacent horizontal ribs.
6. The vehicle underframe edge beam structure of claim 1, wherein the vehicle outer main load-bearing vertical ribs comprise a first section of vertical rib disposed between the lower edge rib and the second horizontal rib, a second section of vertical rib disposed between the second horizontal rib and the third horizontal rib, and a third section of vertical rib disposed between the third horizontal rib and the vehicle floor, wherein the first section of vertical rib and the second section of vertical rib have equal thickness and are both greater than the third section of vertical rib.
7. The vehicle body underframe side beam structure of claim 6, further comprising a first connecting rib arranged on the inner side of the vehicle body and spaced from the third section of vertical rib along the width direction of the vehicle body, wherein the lower end of the first connecting rib is integrally connected with the third horizontal rib, and the upper end of the first connecting rib is integrally connected with the lower plane of the vehicle body floor.
8. The vehicle body chassis rocker structure of claim 7, further comprising a first diagonal rib disposed between the first connector rib and the third section vertical rib.
9. The vehicle body underframe edge beam structure of claim 6, further comprising a top wall rib for dragging and installing electrical equipment, wherein the top wall rib is located on the inner side of the vehicle body and integrally connected with the second horizontal rib, and the height of the horizontal plane where the top wall rib is located is the same as the height of the horizontal plane where the second horizontal rib is located.
10. The vehicle body underframe side sill structure of claim 9, wherein the thickness of the top wall bead is equal to the thickness of the first section of vertical bead and the thickness of the second section of vertical bead, respectively.
11. The vehicle body underframe side beam structure of claim 9, further comprising a second diagonal rib, wherein a first end of the second diagonal rib is integrally connected with the top wall rib, and a second end of the second diagonal rib is integrally connected with a bottom end of the main load-bearing vertical rib inside the vehicle body.
12. The vehicle body chassis rocker structure of claim 7, further comprising a second tie bar disposed below the vehicle body floor, a first end of the second tie bar being integrally connected to the first tie bar, and a second end of the second tie bar being configured as a free end.
13. The vehicle body chassis edge beam structure of claim 12, further comprising a vehicle body floor mounting groove, an outer side wall of which is integrally connected with a free end of the second connecting rib.
14. The vehicle body underframe edge beam structure according to claim 1, further comprising a vehicle body side wall mounting groove disposed at an upper end between the vehicle body inside rib plate and the vehicle body outside rib plate.
15. The vehicle body underframe edge beam structure according to claim 1, further comprising an interior floor mounting groove disposed on an upper plane of the vehicle body floor and located inside the vehicle body interior side gusset.
16. The vehicle underframe edge beam structure according to claim 1, wherein lower doorways are oppositely arranged on the vehicle body inner side rib plate and the vehicle body outer side rib plate, and passenger room door corners are respectively arranged in the lower areas of the left side and the right side of the lower doorways.
17. A vehicle body comprising the vehicle body underframe side sill structure of any one of claims 1 to 16.
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| CN201910378348.7A CN110027586B (en) | 2019-05-08 | 2019-05-08 | Car body chassis boundary beam structure and car body with same |
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Cited By (1)
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|---|---|---|---|---|
| EP4273016A1 (en) * | 2022-05-05 | 2023-11-08 | ALSTOM Holdings | Side rail section for a car body of a railway vehicle |
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| CN111591313A (en) * | 2020-05-26 | 2020-08-28 | 中车长春轨道客车股份有限公司 | Lightweight intercity EMUs automobile body |
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| CN111762219B (en) * | 2020-05-29 | 2021-08-20 | 中车青岛四方机车车辆股份有限公司 | Underframe boundary beam, car body underframe, rail car body and rail car |
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| EP4273016A1 (en) * | 2022-05-05 | 2023-11-08 | ALSTOM Holdings | Side rail section for a car body of a railway vehicle |
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