Patent Publication Number: US-11046336-B2

Title: Chassis component of railway vehicle, and railway vehicle

Description:
CROSS REFERENCE TO RELATED APPLICATION 
     This application is related to and claims the benefit of Chinese Patent Application Number 201811038273.X filed on Sep. 6, 2018, the contents of which are incorporated herein by reference in their entirety. 
     TECHNICAL FIELD 
     The present disclosure relates to a field of railway vehicles, and in particular to a chassis component of a railway vehicle, and a railway vehicle. 
     BACKGROUND 
     A sleeper beam not only is a connecting part of a vehicle body and a bogie of a railway vehicle, but also is a main bearing part of a chassis component, which is used for transferring force and torque transferred from the bogie to the vehicle body. 
     A center pin of a traditional railway vehicle is provided on the bogie, and the center pin is in threaded connection with the sleeper beam through a screw. The sleeper beam in the related art includes two structural forms: a simple I-shaped structure and an overall box-type structure. In the above two sleeper beam structures, the sleeper beam having the I-shaped structure is low in strength, and cannot meet requirements for vehicle body load; the sleeper beam having the box-type structure is in threaded connection with the center pin on the bogie through a screw, the connecting strength between the center pin and the sleeper beam is insufficient, and during the long-term operation process of the railway vehicle, it is difficult to ensure the stability of a connecting structure due to the reasons such as vibration of the vehicle, so that the transfer of force and torque of the entire vehicle is affected. 
     SUMMARY 
     An embodiment of the present disclosure provides a chassis component of a railway vehicle and a railway vehicle, intendeds to solve the problem in the related art of insufficient connecting strength between a center pin and a web structure of a sleeper beam. 
     To this end, some embodiments of the present disclosure provide a chassis component of a railway vehicle. The chassis component includes: two spaced lower boundary beams; and two spaced sleeper beams, provided between the two lower boundary beams along a length direction of the lower boundary beam. At least one of the sleeper beams includes: a web structure; a center pin, connected with a bogie of a railway vehicle; and a mounting frame, connected with the web structure, the center pin being provided on the mounting frame, the mounting frame including a plurality of vertical plates, and the plurality of vertical plates being spaced along an outer wall surface of the center pin. 
     Some embodiments of the present disclosure provide a railway vehicle. The railway vehicle includes a vehicle body structure and a chassis component connected with the vehicle body structure, the chassis component being the above chassis component. 
     By applying the technical solution of the present disclosure, the plurality of vertical plates are provided on the outer wall surface of the center pin to form the mounting frame, so that the connecting area between the center pin and the web structure is increased, thus improving the connecting strength between the center pin and the web structure. Compared with the screw-based threaded connection between the center pin disposed on the bogie and the sleeper beam in the related art, in an embodiment of the present disclosure, the mounting frame is additionally provided to connect the center pin and the web structure of the sleeper beam, the plurality of vertical plates are used to increase the connecting strength between the mounting frame and the center pin, and then the mounting frame provided with the center pin is connected with the web structure, so that the connecting strength between the center pin and the web structure is improved, thus improving the overall strength of the sleeper beam. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings, which constitute a part of this application, are used to provide a further understanding of the present disclosure, and the exemplary embodiments of the present disclosure and the description thereof are used to explain the present disclosure, but do not constitute improper limitations to the present disclosure. In the drawings: 
         FIG. 1  illustrates a structural schematic diagram of a chassis component of a railway vehicle according to an embodiment of the present disclosure; 
         FIG. 2  illustrates a structural schematic diagram of a sleeper beam of the chassis component in  FIG. 1 ; 
         FIG. 3  illustrates a partial structural schematic diagram of the sleeper beam in  FIG. 2  (where an upper cover plate is removed); 
         FIG. 4  illustrates a structural schematic diagram of the sleeper beam in  FIG. 2  in another direction; 
         FIG. 5  illustrates a structural schematic diagram of a rib plate of the sleeper beam in  FIG. 2 ; 
         FIG. 6  illustrates a stress nephogram of a partial chassis component of a railway vehicle according to an embodiment of the present disclosure; and 
         FIG. 7  illustrates a stress nephogram of  FIG. 6  in another direction. 
     
    
    
     The drawings include the following reference signs: 
       10 : sleeper beam;  11 : center pin;  12 : vertical plate;  13 : rib plate;  131 : bulge;  132 : weight-reducing through hole;  14 : web structure;  141 : web;  142 : wire passage hole;  15 : upper cover plate;  151 : through hole;  152 : first penetration-out hole;  16 : lower cover plate;  161 : second penetration-out hole;  17 : inner boundary beam;  20 : lower boundary beam. 
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     It is to be noted that in the case of no conflict, the features in the embodiments and the embodiments in the present application may be combined with each other. The present disclosure is described below with reference to the drawings and in conjunction with the embodiments in detail. 
     In the present disclosure and the embodiments of the present disclosure, as shown in  FIG. 1 , a length direction of a chassis component is an X direction, and a width direction of the chassis component is a Y direction. 
     As shown in  FIG. 1  and  FIG. 3 , an embodiment of the present disclosure provides a chassis component of a railway vehicle. The chassis component of the present embodiment includes two spaced lower boundary beams  20  and two spaced sleeper beams  10 . The two spaced sleeper beams  10  are provided between the two lower boundary beams  20  along a length direction of the lower boundary beams  20 , and at least one of the sleeper beams  10  includes a web structure  14 , a center pin  11  and a mounting frame. The center pin  11  is connected with a bogie of a railway vehicle, the mounting frame is connected with the web structure  14 , the center pin  11  is provided on the mounting frame, the mounting frame includes a plurality of vertical plates  12 , and the plurality of vertical plates  12  are provided along an outer wall surface of the center pin  11  at intervals. 
     In an embodiment of the present application, the plurality of vertical plates  12  are provided on the outer wall surface of the center pin  11  to form the mounting frame, so that the connecting area between the center pin  11  and the web structure  14  is increased, thus improving the connecting strength between the center pin  11  and the web structure  14 . Compared with the screw-based threaded connection between the center pin provided on the bogie and the sleeper beam in the related art, in an embodiment of the present application, the mounting frame is additionally provided to connect the center pin  11  and the web structure  14  of the sleeper beam  10 , the plurality of vertical plates  12  are used to increase the connecting strength between the mounting frame and the center pin  11 , and then the mounting frame provided with the center pin  11  is connected to the web structure  14 , so that the connecting strength between the center pin  11  and the web structure  14  is improved, thus improving the overall strength of the sleeper beam  10 . 
     In an exemplary embodiment not illustrated in the drawings of the present disclosure, one sleeper beam  10  includes a web structure  14 , a center pin  11  and a mounting frame. The center pin  11  is connected with a bogie of a railway vehicle, the mounting frame is connected with the web structure  14 , the center pin  11  is provided on the mounting frame, the mounting frame includes a plurality of vertical plates  12 , and the plurality of vertical plates  12  are provided along an outer wall surface of the center pin  11  at intervals. The other sleeper beam  10  can use the above structure, or the structure in the related art. 
     In an exemplary embodiment, as shown in  FIG. 6  and  FIG. 7 , a joint between the sleeper beam  10  and the center pin  11  on the chassis component of the railway vehicle is a stress concentration area on the chassis component. During the operation process of the railway vehicle, it is necessary to ensure the connecting strength between the center pin  11  and the sleeper beam  10 , so as to ensure that the center pin  11  can stably transfer force and torque from the bogie. Therefore, the center pin  11  in the embodiment of the present disclosure is connected with the web structure  14  of the sleeper beam  10  through the mounting frame, the connecting strength is good, the connection is firm, and the normal operation of the railway vehicle is ensured. 
     As shown in  FIG. 3 , in the embodiment of the present disclosure, the plurality of vertical plates  12  are provided on the outer wall surface of the center pin  11  in an X shape, each vertical plate  12  being welded to the outer wall surface of the center pin  11 . 
     In an exemplary embodiment, the mounting frame is composed of four vertical plates  12 , the four vertical plates  12  being provided on the outer wall surface of the center pin  11  in an X shape. The arrangement improves the strength of the mounting frame, and the four vertical plates  12  simultaneously support the center pin  11 , thereby improving the connecting strength between the center pin  11  and the mounting frame. Thus, when the mounting frame provided with the center pin  11  is subsequently assembled to the web structure  14 , the center pin  11  is not separated from the mounting frame, and can be better connected with the bogie. 
     In an exemplary embodiment, the four vertical plates  12  are welded to the outer wall surface of the center pin  11  respectively, and compared with bolt connection between the center pin and the sleeper beam in the related art, the connecting mode of the embodiment of the present disclosure is firmer. The four vertical plates  12  and the center pin  11  are welded together to form a whole, thereby ensuring the overall strength of the sleeper beam  10 . 
     Of course, in an alternative embodiment not illustrated in the drawings of the present disclosure, the number of vertical plates  12  of the mounting frame is not limited to 4, and can be appropriately set according to the internal space of the sleeper beam  10 . 
     As shown in  FIG. 3 , in the embodiment of the present disclosure, the at least one of the sleeper beams  10  includes two web structures  14 , the mounting frame being located between the two web structures  14 . 
     In an exemplary embodiment of the present disclosure, the mounting frame is located between the two web structures  14 , and the mounting frame is connected with the two web structures  14  respectively, so that two ends of the mounting frame are fixed, and the stability of the mounting frame is improved, thus ensuring the stability of connection between the center pin  11  and the web structure  14  of the sleeper beam  10 . 
     As shown in  FIG. 3 , in an exemplary embodiment of the present disclosure, the each of the sleeper beam  10  further includes a plurality of rib plates  13 , the web structure  14  includes two spaced webs  141 , and the plurality of rib plates  13  are provided between the two webs  141  at intervals. 
     In an exemplary embodiment, there is an included angle between the two webs  141  of the web structure  14 , and a spacing between the two webs  141  is gradually reduced along a direction away from the mounting frame. 
     The plurality of rib plates  13  are provided between the two webs  141 , and in an exemplary embodiment, the plurality of rib plates  13  are provided between the two webs  141  in parallel. The arrangement improves the structural strength of the sleeper beam  10 , and the plurality of rib plates  13  can effectively share an action force transferred to the sleeper beam  10 , thereby improving the bearing capacity of the sleeper beam  10 . 
     Of course, in an alternative embodiment not illustrated in the drawings of the present disclosure, the plurality of rib plates  13  provided between the two webs  141  may form an included angle, and a specific arrangement mode may be selected according to the bearing situation of the sleeper beam  10 . 
     As shown in  FIG. 3 , in an embodiment of the present disclosure, each of the web structures  14  is connected with at least one vertical plate  12  of the mounting frame through at least one rib plate  13 . 
     In an exemplary embodiment, the each of the web structures  14  is connected with the two vertical plates  12  of the mounting frame through an outermost rib plate  13 , that is, the rib plate  13  closest to the mounting frame is connected with the two vertical plates  12 , and the rib plate  13  is connected with the two webs  141  of the web structure  14 . 
     In the arrangement, the mounting frame is connected with the web structure  14  through the rib plate  13 . Compared with direct connection between the mounting frame and the web structure  14 , the arrangement mode of the present application converts line-to-line connection between the mounting frame and the web structure  14  into line-to-surface connection between the vertical plate  12  and the rib plate  13  and line-to-surface connection between the web  141  and the rib plate  13 , so that the connecting strength between the mounting frame and the web structure  14  is improved, and the stability of connection between the mounting frame and the web structure  14  is ensured, thus ensuring the stability of connection between the center pin  11  and the web structure  14 . 
     As shown in  FIG. 3 , in an embodiment of the present disclosure, at least one rib plate  13  included in the plurality of rib plates  13  is provided with a weight-reducing through hole  132 . 
     In an exemplary embodiment, each of the rib plates  13  is provided with a weight-reducing through hole  132 . 
     On the premise of ensuring that the rib plate  13  can improve the strength of the sleeper beam  10 , the weight of the rib plate  13  is reduced, thus realizing the light weight of the sleeper beam  10 , and reducing the weight of the chassis component. Further, by providing the weight-reducing through hole  132 , the transfer of the impact force can be stopped when the vehicle body is impacted, thereby avoiding damage to a rear end of the vehicle body caused by the impact force, and improving the safety of the vehicle body. 
     Of course, in an alternative embodiment not illustrated in the drawings of the present disclosure, the size of the rib plate  13  may be designed as required, and the weight-reducing through hole  132  may also be provided on a part of the rib plates  13 , so as to ensure the strength of the sleeper beam  10  and reduce the weight of the sleeper beam  10 . 
     As shown in  FIG. 3  and  FIG. 4 , in the embodiment of the present disclosure, each web  141  is provided with a wire passage hole  142 . 
     A wire harness may pass through the chassis component of the railway vehicle, and in order to facilitate the connection and penetration of the wire harness, a wire passage hole  142  is provided on the web  141  for the penetration out or in of the wire harness. 
     In an exemplary embodiment, the wire passage holes  142  on the two webs  141  of the web structure  14  are correspondingly provided to facilitate the penetration of the wire harness. In an exemplary embodiment, a pipeline for wire passage may penetrate into the wire passage hole  142 , so that the wire harness penetrates into the pipeline for the storage of the wire harness, thereby avoiding damage to the wire harness caused by wire harness exposure. 
     As shown in  FIG. 2 , in the embodiment of the present disclosure, the at least one of the sleeper beams  10  further includes an upper cover plate  15  covering the webs  141 , the upper cover plate  15  is provided with a plurality of through holes  151 , at least one of the rib plates  13  is provided with a bulge  131 , and the bulge  131  matches the corresponding through hole  151 . 
     In an exemplary embodiment, as shown in  FIG. 5 , each rib plate  13  is provided with a bulge  131 , and the upper cover plate  15  is provided with multiple through holes  151  in one-to-one correspondence with the multiple bulges  131 . By means of the arrangement, after the upper cover plate  15  covers the webs  141 , the bulges  131  on the rib plates  13  are in inserted fit with the through holes  151  on the upper cover plate  15 , so as to connect the upper cover plate  15  and the rib plates  13  together. Thus, the upper cover plate  15  covers a cavity defined by the web structure  14  and the rib plates  13 , so as to form a box structure of the sleeper beam  10 . 
     In an exemplary embodiment, in order to ensure the connecting strength between the upper cover plate  15  and the rib plate  13 , after the bulges  131  are in inserted fit with the through holes  151 , the fit part is welded, so as to further ensure the connecting strength between the upper cover plate  15  and the rib plate  13 , thereby ensuring the overall strength of the sleeper beam  10 . 
     As shown in  FIG. 2 , in an embodiment of the present disclosure, the upper cover plate  15  is provided with a first penetration-out hole  152 , one end of the center pin  11  penetrating out of the first penetration-out hole  152 . 
     The arrangement ensures the fit between the center pin  11  and the upper cover plate  15 , the first penetration-out hole  152  limits the center pin  11 , and it is ensured that the center pin  11  is pivoted to the bogie provided at a lower part of the chassis component. 
     As shown in  FIG. 4 , in an embodiment of the present disclosure, the at least one of the sleeper beams  10  further includes a lower cover plate  16  provided at a lower part of the webs  141 , the lower cover plate  16  being fixedly connected with each rib plate  13 . 
     In the present application, the upper cover plate  15  corresponds to the lower cover plate  16 , and the upper cover plate  15 , the lower cover plate  16  and the web structure  14  jointly form a box structure. In an exemplary embodiment, the lower cover plate  16  is fixedly connected with each rib plate  13 , thereby ensuring the stability of connection between the rib plate  13  and the lower cover plate  16 . 
     In an exemplary embodiment, each of the webs  141  is welded to the lower cover plate  16 , the rib plate  13  is welded to the webs  141 , and after the upper cover plate  15  is in inserted fit with each rib plate  13 , welding fixing is performed. The arrangement makes the sleeper beam  10  form a stable whole structure, and ensures the overall strength of the sleeper beam  10 . 
     As shown in  FIG. 4 , in an exemplary embodiment of the present disclosure, the lower cover plate  16  is provided with a second penetration-out hole  161 , the other end of the center pin  11  penetrating out of the second penetration-out hole  161 . 
     The arrangement ensures the connection between the center pin  11  and the bogie provided at the lower part of the chassis component, thus ensuring that the sleeper beam  10  may transfer force and torque transferred from the bogie to the vehicle body. 
     As shown in  FIG. 1  and  FIG. 2 , in an exemplary embodiment of the present disclosure, the at least one of the sleeper beams  10  further includes two spaced inner boundary beams  17 , the two inner boundary beams  17  being in one-to-one corresponding connection with the two lower boundary beams  20 . 
     In a width direction of the chassis component, the two inner boundary beams  17  are spaced at two ends of the sleeper beam  10 . Moreover, the two inner boundary beams  17  are in one-to-one corresponding connection with the two lower boundary beams  20  respectively so as to connect the sleeper beam  10  and the lower boundary beams  20 . 
     In an exemplary embodiment, each of the inner boundary beams  17  is welded to the corresponding lower boundary beam  20 , thereby ensuring the connecting strength between the sleeper beam  10  and the lower boundary beam  20 . 
     As shown in  FIG. 3 , in an exemplary embodiment of the present disclosure, each of the inner boundary beams  17  is connected with two webs  141  of at least one web structure  14 . 
     In an exemplary embodiment the present disclosure, the sleeper beam  10  includes two web structures  14 , the two web structures  14  being located on two sides of the mounting frame respectively. The inner boundary beams  17  located on a same side of the mounting frame are welded to the two webs  141  of the web structure  14  respectively. 
     The arrangement forms a complete cavity inside the sleeper beam  10 , and the web  141  is welded to the inner boundary beam  17 , thus ensuring the overall strength of the sleeper beam  10 . 
     The embodiment of the present disclosure also provides a railway vehicle. The railway vehicle of the present embodiment includes a vehicle body structure and a chassis component connected with the vehicle body structure, the chassis component being the above chassis component. 
     In the chassis component of some embodiments of the present disclosure, the mounting frame is additionally provided to connect the center pin  11  and the web structure  14  of the sleeper beam  10 , a plurality of vertical plates  12  are used to increase the connecting strength between the mounting frame and the center pin  11 , and then the mounting frame provided with the center pin  11  is connected with the web structure  14 , so that the connecting strength between the center pin  11  and the web structure  14  is improved, thus improving the overall strength of the sleeper beam  10 . Therefore, the railway vehicle having the above chassis component also has the above advantages. 
     The technical solution of an embodiment of the present disclosure is implemented by the following modes. 
     1. A plurality of vertical plates  12  are provided on the outer wall surface of a center pin  11  to form an X-shaped mounting frame, and the mounting frame connects the center pin  11  and a web structure  14  into a whole. The plurality of vertical plates  12  are welded to the center pin  11 , the multiple vertical plates  12  are welded to one of rib plates  13 , and the web structure  14  is welded to the one of rib plate  13 , so as to fixedly connect the center pin  11  and the web structure  14 . Compared with the related art in which a center pin of a bogie and a sleeper beam are connected through a bolt, the connection mode of the embodiment of the present disclosure is firmer. 
     2. The rib plate  13  is provided inside a sleeper beam  10 , the lower end of the rib plate  13  is welded to a lower cover plate  16 , the upper end of the rib plate  13  is provided with a bulge  131  and is inserted into a through hole  151  on an upper cover plate  15 , and the insertion part is welded, so that the connecting strength between the rib plate  13  and the upper cover plate  15  is ensured, thus improving the overall strength of the sleeper beam  10 . 
     From the above description, it can be seen that the above embodiment of the present disclosure achieves the following technical effects: the plurality of vertical plates are provided on the outer wall surface of the center pin to form the mounting frame, so that the connecting area between the center pin and the web structure is increased, thus improving the connecting strength between the center pin and the web structure. Compared with the screw-based threaded connection between the center pin disposed on the bogie and the sleeper beam in the related art, in the present application, the mounting frame is additionally provided to connect the center pin and the web structure of the sleeper beam, the plurality of vertical plates are used to increase the connecting strength between the mounting frame and the center pin, and then the mounting frame provided with the center pin is connected to the web structure, so that the connecting strength between the center pin and the web structure is improved, thus improving the overall strength of the sleeper beam. 
     The above is only the preferred embodiments of the present disclosure, not intended to limit the present disclosure. As will occur to those skilled in the art, the present disclosure is susceptible to various modifications and changes. Any modifications, equivalent replacements, improvements and the like made within the spirit and principle of the present disclosure shall fall within the scope of protection of the present disclosure.