阅读说明：本技术 车辆铰接装置、车辆底架及车辆 (Vehicle hinge device, vehicle chassis and vehicle ) 是由 刘鹏飞 杨小荣 田洪雷 刘龙玺 户迎灿 于 2021-08-17 设计创作，主要内容包括：本发明提供一种车辆铰接装置、车辆底架及车辆。车辆铰接装置包括铰接座；安装座,安装座适于安装于车辆的底架一端,铰接座安装于安装座；补强座,设置于安装座与底架之间以将铰接座的应力传递至底架和/或车体。该车辆铰接装置通过在车辆底架的一端设置安装座,能够将铰接座直接安装至安装座上,进而能够实现车辆的铰接。通过在安装座与底架之间设置补强座,使得当铰接座受到纵向压缩和拉伸时,能够通过补强座将纵向的应力传递给底架；当铰接座受到垂向载荷时,能够通过补强座将垂向的应力传递至车体。这样一来,就能够提高该车辆铰接装置的承载能力,提高车辆的安全性能。而且,该车辆铰接装置还具有结构简单、可靠性高、维护方便等优点。(The invention provides a vehicle hinge device, a vehicle chassis and a vehicle. The vehicle hinge device includes a hinge base; the mounting seat is suitable for being mounted at one end of an underframe of a vehicle, and the hinge seat is mounted on the mounting seat; the reinforcement seat is arranged between the mounting seat and the underframe so as to transmit the stress of the hinged seat to the underframe and/or the car body. This vehicle hinge device sets up the mount pad through the one end at vehicle chassis, can with articulated seat direct mount to the mount pad on, and then can realize the articulated of vehicle. The reinforcing seat is arranged between the mounting seat and the underframe, so that when the hinge seat is longitudinally compressed and stretched, longitudinal stress can be transmitted to the underframe through the reinforcing seat; when articulated seat received vertical load, can transmit vertical stress to the automobile body through the reinforcement seat. Therefore, the bearing capacity of the vehicle hinge device can be improved, and the safety performance of the vehicle can be improved. Moreover, the vehicle hinge device also has the advantages of simple structure, high reliability, convenient maintenance and the like.)

1. A vehicle hinge assembly, comprising:

a hinge base (100);

a mounting seat (102), the mounting seat (102) being adapted to be mounted to one end of an undercarriage of a vehicle, the hinge seat (100) being mounted to the mounting seat (102);

a reinforcement seat (104) disposed between the mounting seat (102) and the underframe to transmit stress of the hinge seat (100) to the underframe and/or the vehicle body.

2. Vehicle articulation arrangement according to claim 1, characterized in that it further comprises a stop seat (106), said stop seat (106) being mounted to the chassis, said stop seat (106) being adapted to limit the relative rotation angle between two adjacent chassis in case of mutual articulation of two adjacent chassis.

3. Vehicle articulation arrangement according to claim 2, characterized in that said stop seat (106) comprises:

a chassis base (108), the chassis base (108) being mounted to the chassis base;

a connector (110), a first end of the connector (110) being connected to the base plate (108);

a stiffener (112), the stiffener (112) disposed between the base plate (108) and the connector (110);

a baffle plate (114), wherein the baffle plate (114) is obliquely arranged at the second end of the connecting piece (110).

4. The vehicle articulation arrangement according to claim 1, characterized in that said mounting seat (102) comprises:

a mounting plate (116), the mounting plate (116) disposed at an end of a longitudinal beam (118) in the undercarriage;

a first connecting plate (120), the first connecting plate (120) connected between the mounting plate (116) and a bumper beam (122) in an undercarriage;

a second connecting plate (124), the second connecting plate (124) being connected between the mounting plate (116), a longitudinal beam (118) in the undercarriage, and a transverse beam (126).

5. The vehicle hinge assembly according to claim 4, wherein the mounting plate (116) defines a mounting hole (128) for mounting the hinge base (100) and a positioning hole (130) for positioning the hinge base (100).

6. The vehicle articulation arrangement according to any one of claims 1 to 5, characterized in that said reinforcement seat (104) comprises:

the number of the reinforcing plates (132) is at least two, the at least two reinforcing plates (132) are arranged at intervals along the length direction of the longitudinal beam (118), and the edges of the at least two reinforcing plates (132) are respectively connected with the longitudinal beam (118) and the buffer beam (122);

a third connecting plate (134), wherein the third connecting plate (134) is connected between two adjacent reinforcing plates (132).

7. Vehicle articulation arrangement according to one of the claims 1 to 5, characterized in that a lifting bar (136) is provided on the articulation seat (100).

8. A vehicle undercarriage including a side rail (138), a longitudinal rail (118), and a bumper rail (122), the side rail (138) being arranged parallel to the longitudinal rail (118), and the bumper rail (122) being connected to the longitudinal rail (118) and to an end of the side rail (138), characterized in that it further comprises a vehicle hinge assembly according to any one of claims 1 to 7, the mount (102) being mounted to the bumper rail (122).

9. The vehicle underframe of claim 8, wherein a sunken section (140) is provided on the side sill (138) at a position corresponding to a door.

10. A vehicle comprising a vehicle articulation arrangement according to any one of claims 1 to 7 or a vehicle undercarriage according to claim 8 or 9.

Technical Field

The invention relates to the technical field of vehicle equipment, in particular to a vehicle hinge device, a vehicle chassis and a vehicle.

Background

In the related art, articulated vehicles are often found in low-floor streetcars. Articulated vehicles of this type are broadly divided into three types: one is fixed articulation, i.e. the connection between two adjacent vehicle undercarriages is only made by means of a fixed articulation; the other is that two ends are connected, namely, center plates connected with the car bodies are arranged on the bogies of two adjacent cars, two car underframe are separately connected with the two center plates of the bogies, and no hinge device is arranged between the car bodies; the other is a middle hinged structure, namely, two adjacent vehicle underframe are connected through a hinged device, and then the hinged device is connected with a swing bolster in a bogie through a center pin. However, in the above-mentioned hinge systems, the stress between two adjacent vehicle undercarriages is concentrated on the hinge seat, which is prone to cause the hinge seat to fail.

Disclosure of Invention

The invention provides a vehicle hinge device, which is used for solving the defect of weak bearing capacity of the vehicle hinge device in the related technology and effectively improving the safety performance of the vehicle hinge device.

The embodiment of the invention also provides a vehicle chassis.

The embodiment of the invention also provides a vehicle.

The present invention provides a vehicle hinge device including:

a hinged seat;

the mounting seat is suitable for being mounted at one end of an underframe of a vehicle, and the hinge seat is mounted on the mounting seat;

the reinforcing seat is arranged between the mounting seat and the underframe and used for transmitting the stress of the hinged seat to the underframe and/or the vehicle body.

According to the vehicle hinge device provided by the embodiment of the first aspect of the invention, the mounting seat is arranged at one end of the vehicle underframe, so that the hinge seat can be directly mounted on the mounting seat, and the vehicle can be hinged. The reinforcing seat is arranged between the mounting seat and the underframe, so that when the hinge seat is longitudinally compressed and stretched, longitudinal stress can be transmitted to the underframe through the reinforcing seat; when articulated seat received vertical load, can transmit vertical stress to the automobile body through the reinforcement seat. Therefore, the bearing capacity of the vehicle hinge device can be improved, and the safety performance of the vehicle can be improved. Moreover, the vehicle hinge device also has the advantages of simple structure, high reliability, convenient maintenance and the like.

According to one embodiment of the invention, the device further comprises a stop seat, wherein the stop seat is mounted on the bottom frames and is suitable for limiting the relative rotation angle between the two adjacent bottom frames under the condition that the two adjacent bottom frames are hinged with each other.

According to one embodiment of the invention, the stop seat comprises:

the bottom plate is arranged on the underframe;

the first end of the connecting piece is connected to the bottom plate;

the reinforcing rib is arranged between the bottom plate and the connecting piece;

and the baffle is obliquely arranged at the second end of the connecting piece.

According to one embodiment of the invention, the mount includes:

a mounting plate disposed at an end of a longitudinal beam in the chassis;

the first connecting plate is connected between the mounting plate and a buffer beam in the underframe;

and the second connecting plate is connected among the mounting plate, the longitudinal beam and the transverse beam in the underframe.

According to one embodiment of the invention, the mounting plate is provided with a mounting hole for mounting the hinge seat and a positioning hole for positioning the hinge seat.

According to one embodiment of the invention, the reinforcement seat comprises:

the number of the reinforcing plates is at least two, the reinforcing plates are arranged at intervals along the length direction of the longitudinal beam, and the edges of the reinforcing plates are respectively connected with the longitudinal beam and the buffer beam;

and the third connecting plate is connected between two adjacent reinforcing plates.

According to one embodiment of the invention, the hinge base is provided with a lifting rod.

The embodiment of the second aspect of the invention provides a vehicle underframe, which comprises a side beam, a longitudinal beam and a buffer beam, wherein the side beam and the longitudinal beam are arranged in parallel, the buffer beam is connected to the end parts of the longitudinal beam and the side beam, the vehicle underframe further comprises the vehicle hinge device, and the mounting seat is mounted on the buffer beam.

According to the vehicle underframe provided by the embodiment of the second aspect of the invention, the mounting seat in the embodiment of the first aspect of the invention is arranged on the bumper beam, so that the bearing capacity of the vehicle underframe can be improved, and the safety performance of a vehicle can be improved. After two adjacent vehicle chassis are articulated each other, can guarantee the articulated stability of two adjacent vehicle chassis effectively. And simultaneously, the two adjacent vehicle chassis can be effectively prevented from directly colliding in the vehicle turning and hoisting processes.

According to one embodiment of the invention, the side beam is provided with a sunken section at a position corresponding to the vehicle door.

In a third aspect, the invention provides a vehicle comprising the vehicle hinge assembly or the vehicle chassis.

According to the vehicle provided by the third invention embodiment, by arranging the vehicle hinge device in the first aspect embodiment of the invention or the vehicle underframe in the second aspect embodiment of the invention, the running safety of the hinge type vehicle can be improved, and the two adjacent carriages can be effectively prevented from colliding directly in the turning and hoisting processes.

One or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

according to the vehicle hinge device provided by the embodiment of the first aspect of the invention, the mounting seat is arranged at one end of the vehicle underframe, so that the hinge seat can be directly mounted on the mounting seat, and the vehicle can be hinged. The reinforcing seat is arranged between the mounting seat and the underframe, so that when the hinge seat is longitudinally compressed and stretched, longitudinal stress can be transmitted to the underframe through the reinforcing seat; when articulated seat received vertical load, can transmit vertical stress to the automobile body through the reinforcement seat. Therefore, the bearing capacity of the vehicle hinge device can be improved, and the safety performance of the vehicle can be improved. Moreover, the vehicle hinge device also has the advantages of simple structure, high reliability, convenient maintenance and the like.

Further, according to the vehicle underframe provided by the embodiment of the second aspect of the invention, the mounting seat provided by the embodiment of the first aspect of the invention is arranged on the bumper beam, so that the bearing capacity of the vehicle underframe can be improved, and the safety performance of a vehicle can be improved. After two adjacent vehicle chassis are articulated each other, can guarantee the articulated stability of two adjacent vehicle chassis effectively. And simultaneously, the two adjacent vehicle chassis can be effectively prevented from directly colliding in the vehicle turning and hoisting processes.

Further, according to the vehicle provided by the third embodiment of the present invention, by providing the vehicle hinge device in the first embodiment of the present invention or the vehicle underframe in the second embodiment of the present invention, the operation safety of the hinge type vehicle can be improved, and the two adjacent cars can be effectively prevented from colliding directly during the turning and hoisting processes.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the related art, the drawings needed to be used in the description of the embodiments or the related art will be briefly described below, and it is obvious that the drawings in the following description are 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 creative efforts.

FIG. 1 is a schematic top view of a vehicle undercarriage provided by an embodiment of the present invention;

FIG. 2 is a schematic perspective view of one angle of a vehicle undercarriage provided by an embodiment of the present invention;

FIG. 3 is a schematic top view of another angle of a vehicle undercarriage provided by an embodiment of the present invention;

FIG. 4 is a schematic top view of yet another angle of a vehicle undercarriage provided by an embodiment of the present invention;

FIG. 5 is an angled schematic block diagram of a mount and bumper beam provided by an embodiment of the present invention;

FIG. 6 is another angular schematic block diagram of a mount and bumper beam provided by an embodiment of the present invention;

FIG. 7 is a further angular schematic block diagram of a mount and bumper beam provided by an embodiment of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 7 at A;

fig. 9 is a schematic configuration diagram of an end portion of a vehicle provided in the embodiment of the invention.

Reference numerals:

100. a hinged seat; 102. a mounting seat; 104. a reinforcement base; 106. a stop seat; 108. a base plate; 110. a connecting member; 112. reinforcing ribs; 114. a baffle plate; 116. mounting a plate; 118. a longitudinal beam; 120. a first connecting plate; 122. a bumper beam; 124. a second connecting plate; 126. a transverse beam; 128. mounting holes; 130. positioning holes; 132. a reinforcing plate; 134. a third connecting plate; 136. hoisting the rod; 138. a boundary beam; 140. sinking to a section; 142. a front end chassis; 144. an underframe floor; 146. a coupler mounting structure; 148. a bolster structure; 150. an anti-creep structure; 152. a box beam; 154. an energy absorbing tube; 156. an end wall; 158. and a side wall.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the 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 embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

As shown in fig. 1 to 9, a vehicle hinge device according to an embodiment of the first aspect of the present invention includes a hinge base 100, a mounting base 102, and a reinforcement base 104; wherein, the mounting seat 102 is suitable for being mounted at one end of the underframe of the vehicle, and the hinge seat 100 is mounted at the mounting seat 102; the reinforcement base 104 is disposed between the mounting base 102 and the underframe to transmit stress of the hinge base 100 to the underframe and/or the car body.

According to the vehicle hinge device provided by the embodiment of the first aspect of the invention, the mounting seat 102 is arranged at one end of the vehicle underframe, so that the hinge seat 100 can be directly mounted on the mounting seat 102, and the vehicle can be hinged. By arranging the reinforcing seat 104 between the mounting seat 102 and the underframe, when the hinge seat 100 is longitudinally compressed and stretched, longitudinal stress can be transmitted to the underframe through the reinforcing seat 104; when the hinge base 100 is vertically loaded, the vertical stress can be transmitted to the vehicle body through the reinforcement base 104. Therefore, the bearing capacity of the vehicle hinge device can be improved, and the safety performance of the vehicle can be improved. Moreover, the vehicle hinge device also has the advantages of simple structure, high reliability, convenient maintenance and the like.

Please refer to fig. 1 to fig. 9, which take a rail vehicle as an example. The underframe of the railway vehicle comprises edge beams 138, longitudinal beams 118, transverse beams 126 and buffer beams 122, wherein the edge beams 138 are arranged on two sides of the vehicle along the length direction of the vehicle; the longitudinal beams 118 and the edge beams 138 are parallel to each other and disposed between the edge beams 138; the transverse beams 126 are arranged between the side beams 138 and the longitudinal beams 118 at intervals along the length direction of the vehicle and are perpendicular to the side beams 138 and the longitudinal beams 118; the bumper beams 122 are disposed at the ends of the longitudinal beams 118, the edge beams 138 and parallel to the transverse beams 126.

A mounting seat 102 for mounting the hinge seat 100 is arranged on the side of the bumper beam 122 facing away from the longitudinal beam 118, and a reinforcing seat 104 is further arranged between the mounting seat 102 and the bumper beam 122. The reinforcing seats 104 are respectively disposed on two sides of the mounting seat 102 to enhance the connection strength between the mounting seat 102 and the vehicle underframe, and it should be noted that the reinforcing seats 104 achieve the purpose of connecting the mounting seat 102, the longitudinal beam 118, the transverse beam 126 and the bumper beam 122. In this way, when the hinge base 100 is stressed along the longitudinal beam 118, the stress on the hinge base 100 can be transmitted to the longitudinal beam 118 and the transverse beam 126 through the reinforcing base 104; when the hinge base 100 is stressed perpendicularly to the transverse beam 126 and the bumper beam 122, the stress on the hinge base 100 can be transmitted to the bumper beam 122, the end wall 156 and the side wall 158 through the reinforcement base 104. Therefore, the stress borne by the hinge base 100 can be reduced, the stress concentration on the hinge base 100 is avoided, and the service life of the hinge base 100 is ensured.

Referring to fig. 5-7, mount 102 includes a mounting plate 116, a first connecting plate 120, and a second connecting plate 124, according to one embodiment of the present invention; wherein the mounting plate 116 is disposed at an end of a longitudinal beam 118 in the undercarriage; a first connecting plate 120 is connected between the mounting plate 116 and a bumper beam 122 in the undercarriage; the second connecting plate 124 is connected between the mounting plate 116, the longitudinal beam 118 in the undercarriage and the transverse beam 126.

The mounting plate 116 is mounted to an end of the longitudinal beam 118, and the hinge base 100 may be mounted directly to the mounting plate 116. in one implementation, the hinge base 100 may be connected to the mounting plate 116 by welding, and in other implementations, the hinge base 100 may be connected to the mounting plate 116 by bolting.

In the present embodiment, the hinge base 100 is connected to the mounting plate 116 by means of bolts or the like. Correspondingly, the mounting plate 116 is provided with a mounting hole 128 for mounting the hinge base 100. Meanwhile, in order to ensure that the hinge base 100 is positioned during the process of installing the hinge base 100, the mounting plate 116 is further provided with a positioning hole 130. For example, the positioning hole 130 may be opened at a middle position of the mounting plate 116, and the mounting hole 128 may be opened on the mounting plate 116 around the positioning hole 130.

Referring to fig. 5-7, a first connection plate 120 and a second connection plate 124 are disposed at the top and bottom of the mounting plate 116, respectively. Specifically, the first connecting plate 120 is used to connect the mounting plate 116 and the bumper beam 122, that is, one end of the first connecting plate 120 is connected to the mounting plate 116, and the second end of the first connecting plate 120 extends toward the bumper beam 122 and is fixedly connected to the bumper beam 122. The second connecting plate 124 is used to realize the connection among the mounting plate 116, the longitudinal beam 118 and the transverse beam 126, that is, one end of the second connecting plate 124 is connected to the mounting plate 116, the second end of the second connecting plate 124 extends toward the longitudinal beam 118 and is fixedly connected to the longitudinal beam 118, and the second end of the second connecting plate 124 is also fixedly connected to the transverse beam 126. It will be appreciated that the first and second connector plates 120, 124 referred to herein serve to reinforce the structural strength of the mount 102.

Referring to FIG. 6, according to one embodiment of the present invention, the reinforcement base 104 includes a reinforcement plate 132 and a third connecting plate 134; at least two reinforcing plates 132 are arranged, the at least two reinforcing plates 132 are arranged at intervals along the length direction of the longitudinal beam 118, and the edges of the at least two reinforcing plates 132 are respectively connected with the longitudinal beam 118 and the bumper beam 122; the third connecting plate 134 is connected between two adjacent reinforcing plates 132.

Taking the example where the reinforcing plates 132 are two, the two reinforcing plates 132 are provided along the longitudinal direction of the longitudinal beam 118, that is, the two reinforcing plates 132 are provided at intervals along the longitudinal direction of the vehicle. A third connecting plate 134 is connected between the two reinforcing plates 132. In order to avoid interference between the reinforcing plate 132 and other structures, the reinforcing plate 132 has a substantially triangular shape.

Of course, in other embodiments, a plurality of stiffening plates 132 may be flexibly selected according to the size of the mounting seat 102 and the model of the vehicle.

Referring to fig. 7 and 8, according to an embodiment of the present invention, the present invention further includes a stop seat 106, the stop seat 106 is mounted to the bottom frame, and the stop seat 106 is adapted to limit a relative rotation angle between two adjacent bottom frames when the two adjacent bottom frames are hinged to each other.

The stop seats 106 are mounted at two ends of the bumper beam 122, and by arranging the stop seats 106, the vehicle cannot collide between two adjacent carriages in the hoisting process. That is, by providing the stop seats 106 at the two ends of the bumper beam 122, if the rotation angle between two adjacent cars is too large, the relative rotation angle between two adjacent cars can be limited by the mutual abutment of the stop seats 106 mounted on the two adjacent cars.

Referring to fig. 8, according to an embodiment of the present invention, the stopper seat 106 includes a bottom plate 108, a connector 110, a reinforcing rib 112, and a baffle plate 114; wherein the base plate 108 is mounted to the chassis; a first end of the connector 110 is connected to the base plate 108; the reinforcing ribs 112 are arranged between the bottom plate 108 and the connecting piece 110; the baffle 114 is obliquely disposed at the second end of the connecting member 110.

The base plate 108 is fixedly mounted on the bumper beam 122, and the connecting member 110 is fixedly connected to a side of the base plate 108 facing away from the bumper beam 122, wherein the connecting member 110 may be a square steel tube or other section. A baffle 114 is fixedly coupled to the other end of the connector 110. Since the stop seats 106 are used to achieve the definition of the relative angle between two adjacent cars when they rotate, in the embodiment of the present invention, the baffle 114 is obliquely disposed at the second end of the connecting member 110. The oblique arrangement mentioned here specifically means that the side of the baffle plate 114 close to the mounting seat 102 is relatively far away from the bumper beam 122, and the side of the baffle plate 114 facing away from the mounting seat 102 is relatively close to the bumper beam 122. Therefore, after the two carriages are hinged, and the two carriages rotate relatively, if the relative angle between the two adjacent carriages reaches a certain angle, the baffle plates 114 in the stop seats 106 connected to the two carriage underframe can be attached to each other, so that the purpose of limiting the relative angle between the two adjacent carriages is achieved, and the two adjacent carriages can be prevented from colliding in the hoisting and transportation processes.

In addition, the position of the link 110 relative to the floor 108 is adjustable to accommodate different angles of rotation of the car.

According to an embodiment of the present invention, the hinge base 100 is provided with a lifting rod 136. The lifting bar 136 may be detachably mounted to the hinge base 100 by means of bolts or the like. Through setting up hoist and mount pole 136 for in the hoist and mount in-process of carriage, the loop wheel machine can directly be hooked on hoist and mount pole 136. In addition, by arranging the hoisting rod 136, the hoisting rod 136 can also enable two adjacent hinge bases 100 to keep relatively fixed positions in the hoisting process. In the actual use process of the vehicle, the hoisting rod 136 is directly dismantled.

In a second aspect, the embodiment of the invention provides a vehicle underframe, which comprises a side beam 138, a longitudinal beam 118 and a bumper beam 122, wherein the side beam 138 is arranged in parallel with the longitudinal beam 118, and the bumper beam 122 is connected to the longitudinal beam 118 and the end part of the side beam 138, and further comprises the vehicle hinge assembly, and the mounting seat 102 is mounted on the bumper beam 122.

According to the vehicle underframe provided by the embodiment of the second aspect of the invention, the mounting seats 102 provided by the embodiment of the first aspect of the invention are arranged on the bumper beam 122, so that the bearing capacity of the vehicle underframe can be improved, and the safety performance of a vehicle can be improved. After two adjacent vehicle chassis are articulated each other, can guarantee the articulated stability of two adjacent vehicle chassis effectively. And simultaneously, the two adjacent vehicle chassis can be effectively prevented from directly colliding in the vehicle turning and hoisting processes.

Referring to fig. 1 to 3, according to an embodiment of the present invention, a rocker section 140 is provided at a position corresponding to a door of a vehicle on a side sill 138.

The mounting position of the vehicle door is correspondingly adjustable by arranging the sinking section 140 at the position corresponding to the vehicle door on the edge beam 138, so that the vehicle underframe can adapt to platforms with different heights. It will be appreciated that if the platform is high, the doors may be located relatively high on the sunken section 140; if the platform is low in height, the vehicle door can be disposed at a relatively low position on the sinking section 140, and a certain number of steps are disposed in the vehicle door, so that the platform can be adapted to the height accordingly.

Further, referring to fig. 1 to 4, the vehicle underframe further includes a front end underframe 142, an underframe floor 144, and the like. In the actual assembly process, the front end underframe 142, the edge beam 138, the transverse beam 126, the longitudinal beam 118, the bumper beam 122 and the underframe floor 144 are welded together, and the stop block 106 and the hinge block 100 are bolted to the bumper beam 122. The front end chassis 142 as referred to herein further includes a coupler mounting structure 146, a bolster structure 148, an anti-creep structure 150, a box beam 152, and an energy absorption tube 154.

In a third aspect, the invention provides a vehicle comprising the vehicle hinge assembly or the vehicle chassis.

According to the vehicle provided by the third invention embodiment, by arranging the vehicle hinge device in the first aspect embodiment of the invention or the vehicle underframe in the second aspect embodiment of the invention, the running safety of the hinge type vehicle can be improved, and the two adjacent carriages can be effectively prevented from colliding directly in the turning and hoisting processes.

The vehicle provided by the embodiment of the third aspect of the invention can be a tram, a subway or the like.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.