A power bogie and a rail vehicle

Abstract

The embodiment of the present application provides a powered bogie and a rail vehicle, which include two parallel side beam structures. There are two parallel cross beam structures connected between the two side beam structures. A traction device is installed between the two cross beam structures. The traction device includes a traction beam and two traction tie rods. One ends of the two traction tie rods are respectively connected to both sides of the traction beam, and the other ends of the two traction tie rods are respectively connected to the cross beam structures on this side. A wheel set device is arranged on the outer sides of the two cross beam structures. The wheel set device is installed on the side beam structures. Braking devices are installed at both ends of the side beam structures corresponding to the wheel set device. A driving device is installed on the cross beam structures, and a suspension device is installed in the middle of the side beam structures. The powered bogie and the rail vehicle provided by the present application adopt a high-positioned traction beam and a double-traction tie rod structure that penetrates the cross beam structure, improve the traction utilization rate, ensure the high-speed traction performance of the vehicle, have a compact and reasonable layout, high overall strength, and are applicable to the technical field of bogies.

Description

Technical Field

[0001] The present application relates to the technical field of bogies, and particularly to a powered bogie and a rail vehicle. Background Art

[0002] Railway passenger cars are important technical equipment for completing passenger transportation tasks. They not only require the ability to carry more passengers to complete heavy passenger transportation tasks, but also are closely related to the safety, comfort, and speed of the passengers. The bogie is one of the key components of the passenger car and is directly related to the safety and comfort of the passengers. The bogie mainly includes a frame providing a skeleton support, a wheel set providing longitudinal rotation, a power device providing power for the wheel set, a braking device providing braking force for the wheel set, a suspension device for shock absorption and energy absorption, and a traction device providing traction transmission force.

[0003] In traditional bogies, most of the traction devices are arranged at the bottom of the frame device, resulting in low traction utilization rate and difficulty in ensuring high-speed traction efficiency of the vehicle. Moreover, due to the unreasonable structure and connection method of the traction device, it is difficult to meet the impact of the lateral impact of the traction rod on the bogie. The conventional lateral stop adopts a structure of one-stage elasticity plus one-stage rigidity, which will cause abnormal noises when the vehicle moves laterally, and direct contact with the second-stage rigid structure after the first-stage elasticity is compressed will generate certain abnormal noises and wear. The traditional structure lacks protection for the gearbox. When the gearbox rotates in reverse or has a mechanical failure, the safety nose and the gearbox hanger will cause a rigid collision, generating a large impact on the overall frame. Summary of the Invention

[0004] To solve one of the above technical defects, on the one hand, an embodiment of the present application provides a powered bogie, including a frame device. The frame device includes two parallel side beam structures. Two parallel cross beam structures are connected between the middle parts of the two side beam structures. A traction device is installed between the two cross beam structures. The traction device includes a traction beam and two traction rods. One ends of the two traction rods are respectively connected to both sides of the traction beam, and the other ends of the two traction rods are respectively connected to the cross beam structure on this side. A suspension device is installed in the middle of the side beam structure. Two first traction motor hangers are installed on the upper surface of the cross beam structure. The side of the first traction motor hanger close to the traction device is provided with a concave large curve section. A gearbox hanger is also installed on the upper surface of the cross beam structure.

[0005] Furthermore, on both of the two crossbeam structures, there are traction rod connectors installed corresponding to the traction rods on that side. Through holes parallel to the side beam structure are provided on the crossbeam structures. The traction rod connectors are welded to the crossbeam structures in a penetrating manner through the through holes, and a circumferential weld is formed at the welding position of the traction rod connectors and the crossbeam structures. The side of the traction rod connector facing the traction device is open. The other end of the traction rod passes through the open side of the traction rod connector and is welded to the other side of the traction rod connector, and a circumferential weld is formed at the welding position of the traction rod and the traction rod connector.

[0006] Furthermore, the frame device further includes two longitudinal beams. The two longitudinal beams are respectively arranged outside the two end parts of the traction beam. A vertical baffle is installed on the side of the longitudinal beam facing the end part of the traction beam. A lateral stop device is installed on the vertical baffle. The lateral stop device includes a top plate, an intermediate layer, and a stop base. The stop base is installed on the vertical baffle.

[0007] Furthermore, the intermediate layer is arranged inside the stop base. The intermediate layer is made of an elastic material. The bottom of the intermediate layer is recessed upward to form a buffer space with the stop base. The top of the intermediate layer is recessed downward. The bottom of the top plate protrudes downward and is embedded in the recess at the top of the intermediate layer.

[0008] Furthermore, hoisting devices are respectively connected to both ends of the side beam structure. The hoisting device includes a brake caliper mounting hole arranged parallel to the crossbeam structure. The braking device is connected to the frame device through the brake caliper mounting hole. One end of the brake caliper mounting hole is welded to the end part of the side beam structure through a stepped interface. A hoisting mounting point is arranged above the other end of the brake caliper mounting hole.

[0009] Furthermore, convex accommodating cavities are respectively provided at both ends of the traction beam. The two convex accommodating cavities are centrosymmetric about the symmetric center of the traction beam. Mounting holes penetrating the traction beam are provided in the depressions on both sides of the convex accommodating cavity. One end of the traction rod is installed in the depression in the middle of the convex accommodating cavity through the mounting hole.

[0010] On the other hand, an aspect of the embodiments of the present application provides a rail vehicle, including any one of the above-mentioned power bogies. Wheel set devices are respectively arranged on the outer sides of the two crossbeam structures. The wheel set devices are installed on the side beam structures. Braking devices are installed at the positions corresponding to the wheel set devices at both ends of the side beam structures. A driving device is installed on the crossbeam structure. The driving device includes a traction motor. The traction motor is installed on the crossbeam structure and is located between the crossbeam structure and the wheel set device.

[0011] Furthermore, four elastic nodes extend from the side of the traction motor facing the crossbeam structure. The four elastic nodes are divided into upper and lower groups. The traction motor is connected to the crossbeam structure through the four elastic nodes. The elastic node includes a steel jacket cast on the traction motor housing, and an annular elastic material is embedded in the steel jacket.

[0012] Furthermore, two second traction motor suspension seats corresponding to the first traction motor suspension seats are installed on the lower surface of the crossbeam structure, and the four elastic nodes are respectively connected to the upper surface and the lower surface of the crossbeam structure through the two first traction motor suspension seats and the two second traction motor suspension seats.

[0013] Furthermore, the drive device further includes a gearbox. A connecting rod is installed on the gearbox. One end of the connecting rod is connected to the bottom of the gearbox, and the other end of the connecting rod is connected to the gearbox suspension seat. A safety support is arranged below the gearbox suspension seat on the gearbox. An elastic protrusion is arranged on the top of the safety support. The output end of the traction motor is in transmission connection with the input end of the gearbox, and the output end of the gearbox is in transmission connection with the wheel set device.

[0014] By using a power bogie and a rail vehicle provided in the embodiment of the present application, the conventional design of arranging the traction device at the bottom of the frame device is broken. The traction device is installed between the two crossbeam structures. A highly positioned traction beam and a double traction pull rod structure penetrating the crossbeam structure are adopted. The highly positioned traction beam can well improve the traction utilization rate and ensure the high-speed traction efficiency of the vehicle. At the same time, a matching double traction pull rod is configured. The traction pull rod penetrates through the center of the frame device, and a stable welded connection traction pull rod structure is adopted to ensure the stable and reliable structure of the traction device during operation and reduce the influence brought by the lateral impact of the traction pull. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0016] Figure 1 is a top view of a power bogie provided by an embodiment of the present application;

[0017] Figure 2 is a perspective view of a frame device provided by an embodiment of the present application;

[0018] Figure 3 is a top view of a frame device provided by an embodiment of the present application

[0019] Figure 4 is a bottom view of a frame device provided by an embodiment of the present application;

[0020] Figure 5 is a schematic structural diagram of a traction device provided by an embodiment of the present application;

[0021] Figure 6 is a schematic structural diagram of a traction beam provided by an embodiment of the present application;

[0022] Figure 7Structural schematic diagram of the lateral stop device provided by the embodiment of the present application;

[0023] Figure 8 Cross-sectional view of the lateral stop device provided by the embodiment of the present application;

[0024] Figure 9 Structural schematic diagram of the traction motor provided by the embodiment of the present application;

[0025] Figure 10 Installation schematic diagram of the traction motor and the first traction motor suspension seat provided by the embodiment of the present application;

[0026] Figure 11 Structural schematic diagram of the first traction motor suspension seat provided by the embodiment of the present application;

[0027] Figure 12 Structural schematic diagram of the gearbox provided by the embodiment of the present application;

[0028] Figure 13 Structural schematic diagram of the hoisting device provided by the embodiment of the present application;

[0029] Among them, 10 is the frame device, 101 is the side beam structure, 102 is the cross beam structure, 103 is the traction rod connecting piece, 104 is the longitudinal beam, 105 is the vertical baffle, 106 is the first traction motor suspension seat, 107 is the second traction motor suspension seat, 108 is the gearbox suspension seat, 20 is the traction device, 201 is the traction beam, 202 is the traction rod, 203 is the convex accommodation cavity, 30 is the wheel set device, 40 is the braking device, 50 is the driving device, 501 is the traction motor, 502 is the elastic node, 503 is the steel outer sleeve, 504 is the annular elastic material, 505 is the gearbox, 506 is the connecting rod, 507 is the safety support, 508 is the elastic protrusion, 60 is the suspension device, 601 is the housing, 602 is the lateral shock absorber, 70 is the lateral stop device, 701 is the top plate, 702 is the intermediate layer, 703 is the stop base, 704 is the buffer space, 80 is the hoisting device, 801 is the brake caliper mounting seat, 802 is the stepped interface, 803 is the hoisting mounting point. Detailed implementation manners

[0030] In order to make the technical solutions and advantages in the embodiments of the present application clearer and more understandable, the following further elaborates on the exemplary embodiments of the present application in conjunction with the attached Figures 1-13 It is obvious that the described embodiments are only a part of the embodiments of the present application, rather than an exhaustive list of all embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0031] In the process of implementing the present application, the inventors found that in traditional bogies, most of the traction devices are arranged at the bottom of the frame device, resulting in low traction utilization rate and difficulty in ensuring the high-speed traction efficiency of the vehicle. Moreover, due to the unreasonable structure and connection method of the traction device, it is difficult to meet the impact of the lateral impact of the traction rod on the bogie. The conventional lateral stop adopts a structure of one-stage elasticity plus one-stage rigidity, which will cause abnormal noises when the vehicle moves laterally, and direct contact with the second-stage rigid structure after the first-stage elasticity is compressed will generate certain abnormal noises and wear. In the traditional structure, there is a lack of protection for the gearbox. When the gearbox rotates reversely or has a mechanical failure, the safety nose and the gearbox hanger will cause rigid collision, resulting in a large impact on the overall frame.

[0032] In view of the above problems, in the embodiments of the present application, a power bogie is provided, as Figures 1-4 shown, which includes a frame device 10 that provides support for the entire power bogie on the entire skeleton. The frame device 10 includes two parallel side beam structures 101. Between the middle parts of the two side beam structures 101, two parallel cross beam structures 102 are connected. Between the two cross beam structures 102, a traction device 20 is installed to provide traction transmission power for the entire power bogie, as Figure 5 shown. The traction device 20 includes a traction beam 201 and two traction rods 202 that are centrosymmetric about the symmetric center of the traction beam 201. One ends of the two traction rods 202 are respectively connected to both sides of the traction beam 201, and the other ends of the two traction rods 202 are respectively connected to the cross beam structure 102 on that side. A suspension device 60 is installed in the middle of the side beam structure 101 to provide vibration damping and energy absorption for the entire power bogie.

[0033] Different from the design of arranging the traction device at the bottom of the frame device in the traditional bogie, in the embodiments of the present application, the traction device 20 is installed between the two cross beam structures 102, adopting a high-positioning traction beam 201 and a double-traction rod 202 structure that penetrates the cross beam structure 102. The high-positioning traction beam 201 can well improve the traction utilization rate and ensure the high-speed traction efficiency of the vehicle. At the same time, a supporting double-traction rod 202 is configured. The traction rod 202 penetrates through the center of the frame device 10, and a stable welded connection traction rod 202 structure is adopted.

[0034] As a preferred solution, as Figure 2As shown in the figure, on both of the two crossbeam structures 102, a traction rod connector 103 is installed corresponding to the traction rod 202 on that side. Through holes parallel to the direction of the side beam structure 101 are provided on the crossbeam structure 102. The traction rod connector 103 is welded to the crossbeam structure 102 in a penetrating manner through the through holes, and two circular welds are formed at the welding position of the traction rod connector 103 and the crossbeam structure 102. The two circular welds are respectively located on both sides of the crossbeam structure 102. The side of the traction rod connector 103 facing the traction device 20 is open, and the side of the traction rod connector 103 facing away from the traction device 20 is closed. The other end of the traction rod 202 passes through the open side of the traction rod connector 103 and is welded to the closed side of the traction rod connector 103, and a third circular weld is formed at the welding position of the traction rod 202 and the traction rod connector 103.

[0035] Between the traction rod 202 and the traction rod connector 103, a fixed installation method of welding is adopted, which can well avoid the instability of the traction connection method, ensure the stable and reliable operation of the traction device 50 structure, and reduce the influence brought by the lateral impact of the traction rod 202; and three circular welds are formed at the welding position, further increasing the stability of the connection structure; the open and non-closed structure design of the traction rod connector 103 is convenient for the connection and installation of the traction rod 202, and is also convenient for timely detecting and cleaning the stains and water droplets inside the traction rod 202, effectively controlling corrosion.

[0036] Specifically, as Figure 5 shown, the traction beam 201 is designed in a bow shape. The bow-shaped traction beam design is more in line with the bionics design concept. The two ends are arranged in a symmetrical structure, and the force is relatively uniform and reasonable in terms of force. The overall arrangement ensures the overall strength of the structure. The two ends of the traction beam 201 are respectively installed with traction rods 202 perpendicular to the traction beam 501. The two traction rods 202 are centrosymmetric about the symmetry center of the traction beam 201. During the operation of the bogie, the design of the double traction rods 202 ensures the stable and reliable operation of the entire traction device 20 structure.

[0037] As a preferred solution, as Figure 2 、 Figure 7As shown in the figure, the frame device 10 further includes two longitudinal beams 104. The two ends of each longitudinal beam 104 respectively penetrate through the two crossbeam structures 102, and a plurality of circumferential welds are formed between the longitudinal beam 104 and the crossbeam structure 102. The two longitudinal beams 104 are respectively arranged outside the two ends of the traction beam 201, reserving a certain installation space and movement clearance for the traction device 20. A vertical baffle 105 is installed on one side of the longitudinal beam 104 facing the end of the traction beam 201, and a lateral stop device 70 is installed on the vertical baffle 105, which is responsible for restricting the lateral movement of the vehicle. The lateral stop device 70 includes a top plate 701, an intermediate layer 702 and a stop base 703, and the stop base 703 is installed on the vertical baffle 105.

[0038] In the traditional bogie frame body, a saddle-type interface mode is adopted between the longitudinal beam and the crossbeam. The contact part is semi-wrapped around the crossbeam, the weld length is short, and the overall strength is poor. In this embodiment, the longitudinal beam 104 adopts a weld that is integrally wrapped around the crossbeam structure 102, a full-circle weld, and there are a plurality of circumferential welds at the connection with the crossbeam structure 102, ensuring the overall strength of the structure. The through-type longitudinal beam 104 structure maintains the characteristics of convenient installation and assembly. The flexible welding method and the allocation of a plurality of circumferential welds well ensure the connection strength of the overall longitudinal beam 104 structure. The longitudinal beam 104 and the crossbeam structure 102 together form an overall "mouth" - shaped structure, making the frame device 10 more stable and reliable during operation. The structure of the overall longitudinal beam provides a strong skeleton support for the overall bogie.

[0039] As a preferred solution, as Figure 8 shown, the intermediate layer 702 is arranged in the stop base 703. The intermediate layer 702 is made of an elastic material. The bottom of the intermediate layer 702 is recessed upward to form a buffer space 704 with the stop base 703. The top of the intermediate layer 702 is recessed downward, and the two recesses of the intermediate layer 702 are arranged in a funnel shape. The bottom of the top plate 701 protrudes downward and is embedded in the top recess of the intermediate layer 702. Specifically, the intermediate layer 702 can be made of small-foot material.

[0040] This application adopts a lateral stop device 70, which includes three - stage lateral stops. When the vehicle moves laterally, the top plate 701 drives the intermediate layer 702 to press against the stop base 703. During this process, the upper half of the intermediate layer 702 with a downward - concave top undergoes elastic deformation to provide the first stop force, forming the first - stage lateral stop; the top plate 701 continues to press down on the stop base 703, and the lower half of the intermediate layer 702 with an upward - concave bottom also undergoes elastic deformation and squeezes into the buffer space 704 to provide the second stop force, forming the second - stage lateral stop; the top plate 701 continues to press down on the stop base 703 until the middle part of the intermediate layer 702 abuts against the stop base 703, and the stop base 703 rebounds against the intermediate layer 702 to provide the third stop force, forming the third - stage lateral stop. After the lateral stop ends, the intermediate layer 702 elastically returns to its original state, driving the top plate 701 to return to the initial state.

[0041] On the one hand, the intermediate layer 702 with a bionic funnel - type design ensures that when compressed laterally, the vehicle will not produce abnormal noises (while also ensuring the suppression of lateral movement). Different from the conventional first - stage elastic + first - stage rigid lateral stop structure, it avoids the abnormal noises and wear that occur when the first - stage elastic compression directly contacts the second - stage rigid structure, increases the first - stage elastic damping function, and ensures good comfort performance of the vehicle; on the other hand, the funnel - type designed intermediate layer 702 not only subverts the concept of the conventional second - stage lateral stop, but also can well ensure that during the process of the lateral stop being compressed, the first - stage and second - stage lateral stops can well transmit the lateral damping force. At the same time, the design of the buffer space 704 can ensure that during the compression process, the intermediate layer 702 will not be in contact with the stop base 703 for a long time and can achieve free separation after the stop ends.

[0042] It should be understood that a three - stage stop design similar to the above - mentioned lateral stop device 70 can also be applied to other stop devices in this embodiment.

[0043] As a preferred solution, as Figure 13 shown, hoisting devices 80 are respectively connected to both ends of the side - beam structure 101. The hoisting device 80 includes a brake caliper mounting seat 801 arranged parallel to the cross - beam structure 102. The braking device 40 is connected to the frame device 10 through the brake caliper mounting seat 801. One end of the brake caliper mounting seat 801 is welded to the end of the side - beam structure 101 through a stepped interface 802, and a hoisting mounting point 803 is arranged above the other end of the brake caliper mounting seat 801.

[0044] The hoisting device 80 has three functions, as Figure 13As shown in the structural schematic diagram of the hoisting device, the hoisting installation point 803 in the hoisting device 80 provides a hoisting solution hole, providing the hoisting installation point 803 during the transmission of the entire bogie or frame device. During the lifting process of the entire bogie or frame, using this hoisting installation point 803 can ensure the stable hoisting of the entire bogie or frame; the brake caliper mounting seat 801 in the hoisting device 30 provides a brake caliper mounting interface; the stepped interface 802 in the hoisting device 80 is responsible for welding with the end of the side beam structure 101. Its unique stepped welding interface ensures that there is a welding backing plate at the contact during the welding process. The integration of these three functions in one hoisting installation structure realizes the superposition and free conversion of multiple functions. Integrating the three functions into one hoisting device can not only save the installation space on the bogie, reduce a certain number of components, lower costs and installation workload, but also make the layout of the entire bogie more compact and reasonable.

[0045] As a preferred solution, convex accommodation cavities 203 are respectively provided at both ends of the drawbar 201. The two convex accommodation cavities 203 are centrosymmetric about the center of symmetry of the drawbar 201. Mounting holes penetrating the drawbar 201 are provided on the depressions on both sides of the convex accommodation cavity 203. One end of the drawbar 202 is installed in the depression in the middle of the convex accommodation cavity 203 through the mounting hole.

[0046] At the connection node of the drawbar 201 and the drawbar 202, this solution adopts a more stable node connection method, using the convex accommodation cavity 203 structure. The depression in the middle of the convex accommodation cavity 203 wraps one end of the drawbar 202, adopting a large-enclosure and large-wall-thickness structural design, ensuring that the drawbar 202 can withstand the constraints of complex load impacts during the process of towing the vehicle. At the same time, the installation interface of the drawbar 201 and the drawbar 202 in the drawbar 201 adopts a layout method perpendicular to the center symmetry of the drawbar 201, further increasing the stability of the overall structure during the stress process.

[0047] As a preferred solution, as Figure 3 shown, the middle part of the side beam structure 101 is set to be concave downward, providing a certain space for the installation of the suspension device 60 and providing conditions for realizing the low-floor structure of the vehicle body. The cross beam structure 102 and the concave middle part of the side beam structure 101 are located on the same horizontal plane.

[0048] In an embodiment of the present application, a rail vehicle is further provided, which includes any one of the power bogies in the above solutions. A wheel set device 30 is respectively arranged on the outer sides of the two cross beam structures 102 to provide longitudinal rotation for the entire rail vehicle. The wheel set device 30 is installed on the side beam structure 101. A braking device 40 is installed at both ends of the side beam structure 101 corresponding to the wheel set device 30 to provide braking force for the wheel set device 30. A driving device 50 is installed on the cross beam structure 102 to provide power for the wheel set device 30. As Figure 9 , Figure 10 shown, the driving device 50 includes a traction motor 501. The traction motor 501 is installed between the cross beam structure 102 and the wheel set device 30. Four elastic nodes 502 extend from the side of the traction motor 501 facing the cross beam structure 102. The upper two of the four elastic nodes 502 are in one group, and the lower two are in another group. The traction motor 501 is connected to the cross beam structure 102 through the four elastic nodes 502. The elastic node 502 includes a steel outer sleeve 503 cast on the housing of the traction motor 501. An annular elastic material 504 is embedded in the steel outer sleeve 503. A connecting piece is horizontally sleeved in the annular elastic material. The connecting piece is respectively connected to the lifting seats on the cross beam structure 102 through bolt structures. Specifically, the annular elastic material 504 can be a rubber part.

[0049] Different from the rigid connection installation method of the traction motor in the traditional bogie, this embodiment adopts a more flexible elastic node suspension structure and a rubber elastic node device to achieve elastic damping in three directions, effectively controlling the free vibration and restraint in the three directions of lateral (friction force), longitudinal (elastic force), and vertical (elastic force). During the operation of the entire bogie, the rigid connection will reduce the reliability of the connection part, and the elastic connection can ensure the stability of the operation of the overall bogie.

[0050] It should be understood that an elastic connection structure similar to the above elastic node 502 can also be applied to the connection of other parts that need vibration reduction in this embodiment.

[0051] As a preferred solution, as Figure 11 shown, two first traction motor lifting seats 106 are installed on the upper surface of the cross beam structure 102. As Figure 4 shown, two second traction motor lifting seats 107 are installed on the lower surface of the cross beam structure 102. The four elastic nodes 502 are respectively connected to the upper surface and the lower surface of the cross beam structure 102 through the two first traction motor lifting seats 106 and the two second traction motor lifting seats 107. The side of the first traction motor lifting seat 106 facing away from the traction motor 501 is provided with a concave large curve section.

[0052] Combined with the elastic node 502 in the above solution, in this embodiment, a first traction motor suspension bracket 106 with a large-curve cross-section adapted to it is also provided. The bottom surface of the first traction motor suspension bracket 106 and the upper surface of the crossbeam structure 102 adopt a full-wrap welding structure to enhance the connection strength itself. In addition to ensuring a good contact area for welding with the upper surface of the crossbeam structure 102, the cross-section of the large curve can also ensure that the end of the motor mounting hole has a large cross-section, ensuring the stability of the connection base during the force-bearing process of the connection hole.

[0053] As a preferred solution, as Figure 12 shown, the drive device 50 further includes a gearbox 505. A gearbox suspension bracket 108 is also installed on the upper surface of the crossbeam structure 102. A connecting rod 506 is installed on the gearbox 505. One end of the connecting rod 506 is connected to the bottom of the gearbox 505, and the other end of the connecting rod 506 is connected to the gearbox suspension bracket 108. A safety support 507 is provided on the gearbox 505 below the gearbox suspension bracket 108. An elastic protrusion 508 is provided on the top of the safety support 507. The output end of the traction motor 501 is in transmission connection with the input end of the gearbox 505, and the output end of the gearbox 505 is in transmission connection with the wheel set device 30.

[0054] Specifically, the elastic protrusion 508 is an elastic rubber node vulcanized on the safety support 507 (metal) of the gearbox 505. When the gearbox 505 rotates in reverse or has a mechanical failure, the elastic collision rather than the rigid collision occurs between the end safety nose of the safety support 507 and the gearbox suspension bracket 108. The rubber damping force can ensure that the overall frame will not be greatly impacted due to the reverse rotation of the gearbox.

[0055] A power bogie and a rail vehicle provided in an embodiment of the present application adopt a double traction rod structure with a highly positioned traction beam and a through cross beam structure, which improves traction utilization rate and ensures high-speed traction efficiency of the vehicle; the traction rods cooperate with traction rod connectors to form three circular welds at the welding joints, making the connection of the traction device stable and reliable; the traction rod connectors adopt an open and non-closed structural design, which is convenient for installation and can be cleaned at any time; a three-stage lateral stop device is creatively designed to ensure that there is no abnormal noise in the vehicle during lateral compression, avoid a certain degree of wear, and at the same time can improve the damping function, ensuring good comfort performance of the vehicle. The funnel-shaped middle layer can prevent the middle layer from contacting the stop base for a long time during compression, and can quickly achieve separation freedom when the lateral compression is released; the installation of the traction motor adopts a four-point elastic node device connection to achieve elastic damping in three directions, effectively controlling the free vibration and restraint in the lateral, longitudinal, and vertical directions, and ensuring the stability of the overall bogie operation; the traction motor suspension seat with a large curve section design ensures the contact area for the installation of the traction motor; elastic protrusions are adopted on the gearbox to ensure that there is no large impact on the overall frame due to the reverse rotation of the gearbox. A power bogie provided by the present application has a novel structure, a compact and reasonable layout, high overall strength, and strong practicability.

[0056] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0057] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0058] In this application, unless otherwise clearly defined and limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] Although the preferred embodiments of this application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments as well as all changes and modifications that fall within the scope of this application.

[0060] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

1. A powered bogie, characterized in that, It includes a frame device (10), the frame device (10) includes two parallel side beam structures (101), two parallel cross beam structures (102) are connected between the middles of the two side beam structures (101), a traction device (20) is installed between the two cross beam structures (102), the traction device (20) includes a traction beam (201) and two traction tie rods (202), one ends of the two traction tie rods (202) are respectively connected to both sides of the traction beam (201), the other ends of the two traction tie rods (202) are respectively connected to the cross beam structure (102) on this side, a suspension device (60) is installed in the middle of the side beam structure (101), two first traction motor mounts (106) are installed on the upper surface of the cross beam structure (102), the side of the first traction motor mount (106) close to the traction device (20) is provided with a concave large curve section, and a gearbox mount (108) is also installed on the upper surface of the cross beam structure (102); The frame device (10) further includes two longitudinal beams (104), the two longitudinal beams (104) are respectively arranged outside the two ends of the traction beam (201), a vertical baffle (105) is installed on the longitudinal beam (104) on the side opposite to the end of the traction beam (201), and a lateral stop device (70) is installed on the vertical baffle (105), the lateral stop device (70) includes a top plate (701), an intermediate layer (702) and a stop base (703), and the stop base (703) is installed on the vertical baffle (105).

2. The powered bogie according to claim 1, characterized in that, Traction tie rod connectors (103) are installed on both of the two cross beam structures (102) corresponding to the traction tie rods (202) on this side, through holes parallel to the direction of the side beam structure (101) are opened on the cross beam structure (102), the traction tie rod connectors (103) are welded to the cross beam structure (102) in a penetrating manner through the through holes, and a circumferential weld is formed at the welding position of the traction tie rod connector (103) and the cross beam structure (102), the side of the traction tie rod connector (103) facing the traction device (20) is open, the other end of the traction tie rod (202) passes through the open side of the traction tie rod connector (103) and is welded to the other side of the traction tie rod connector (103), and a circumferential weld is formed at the welding position of the traction tie rod (202) and the traction tie rod connector (103).

3. The powered bogie according to claim 1, characterized in that, The intermediate layer (702) is arranged in the stop base (703), the intermediate layer (702) is made of an elastic material, the bottom of the intermediate layer (702) is recessed upward to form a buffer space (704) with the stop base (703), the top of the intermediate layer (702) is recessed downward, and the bottom of the top plate (701) protrudes downward and is embedded in the depression at the top of the intermediate layer (702).

4. The powered bogie according to claim 1, characterized in that, Hoisting devices (80) are respectively connected to both ends of the side beam structure (101). The hoisting device (80) includes a brake caliper mounting hole (801) arranged parallel to the cross beam structure (102). The braking device (40) is connected to the frame device (10) through the brake caliper mounting hole (801). One end of the brake caliper mounting hole (801) is welded to the end of the side beam structure (101) through a stepped interface (802). A hoisting mounting point (803) is arranged above the other end of the brake caliper mounting hole (801).

5. The powered bogie according to claim 1, characterized in that Convex accommodating cavities (203) are respectively formed at both ends of the drawbar (201). The two convex accommodating cavities (203) are centrosymmetric about the symmetric center of the drawbar (201). Mounting holes penetrating the drawbar (201) are provided in the depressions on both sides of the convex accommodating cavity (203). One end of the drawbar (202) is mounted in the depression in the middle of the convex accommodating cavity (203) through the mounting hole.

6. An orbital vehicle, comprising a powered bogie as described in any one of claims 1-5, characterized in that, Wheel set devices (30) are respectively arranged on the outer sides of the two cross beam structures (102). The wheel set devices (30) are mounted on the side beam structure (101). Braking devices (40) are mounted at both ends of the side beam structure (101) corresponding to the wheel set devices (30). A driving device (50) is mounted on the cross beam structure (102). The driving device (50) includes a traction motor (501). The traction motor (501) is mounted on the cross beam structure (102) and is located between the cross beam structure (102) and the wheel set device (30).

7. The rail vehicle according to claim 6, characterized in that , four elastic nodes (502) extend towards the side of the cross beam structure (102) from the traction motor (501). The four elastic nodes (502) are divided into upper and lower groups. The traction motor (501) is connected to the cross beam structure (102) through the four elastic nodes (502). The elastic node (502) includes a steel outer sleeve (503) cast on the housing of the traction motor (501). An annular elastic material (504) is embedded in the steel outer sleeve (503).

8. The rail vehicle according to claim 7, characterized in that, Two second traction motor mounts (107) corresponding to the first traction motor mounts (106) are respectively mounted on the lower surface of the cross beam structure. The four elastic nodes (502) are respectively connected to the upper surface and the lower surface of the cross beam structure (102) through the two first traction motor mounts (106) and the two second traction motor mounts (107).

9. The rail vehicle according to claim 7, characterized in that, The drive device (50) further includes a gearbox (505), a connecting rod (506) is mounted on the gearbox (505), one end of the connecting rod (506) is connected to the bottom of the gearbox (505), the other end of the connecting rod (506) is connected to the gearbox suspension seat (108), a safety support (507) is arranged below the gearbox suspension seat (108) on the gearbox (505), an elastic protrusion (508) is arranged on the top of the safety support (507), the output end of the traction motor (501) is in transmission connection with the input end of the gearbox (505), and the output end of the gearbox (505) is in transmission connection with the wheel set device (30).

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