CN112277968B

CN112277968B - Steering frame

Info

Publication number: CN112277968B
Application number: CN202011126928.6A
Authority: CN
Inventors: 刘爱文; 罗辉; 侯建云; 黄美林; 尹刚; 王全虎; 姚雄; 柯晓乐; 梅琨; 崔灿; 冯晔; 黄恒; 宋少波; 陈治国; 刘伟; 彭全海; 孙博; 苏利杰
Original assignee: CRRC Yangtze Co Ltd
Current assignee: CRRC Yangtze Co Ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2024-06-18
Anticipated expiration: 2040-10-20
Also published as: CN112277968A

Abstract

The invention belongs to the technical field of rail transit, and particularly relates to a bogie. The bogie comprises a framework, a swing bolster and a central suspension device, wherein the framework comprises an upper chord beam, a lower chord beam and a connecting beam, the upper chord beam and the lower chord beam are oppositely arranged, the upper chord beam and the lower chord beam are connected through a plurality of connecting beams arranged at intervals, and the swing bolster is suspended in the middle of the lower chord beam through the central suspension device. The invention can reduce the structural size of the pier column of the track beam and the support track beam so as to reduce the steel consumption and achieve the purpose of reducing the construction cost of the line.

Description

Steering frame

Technical Field

The invention belongs to the technical field of rail transit, and particularly relates to a bogie.

Background

The suspended track traffic system adopts a box-section track beam with an opening at the bottom, a frame runs below the track beam, and the frame is connected with the track beam by virtue of a bogie.

In the prior art, the frames of the bogie are mostly H-shaped, for example, in the patent documents disclosed by patent numbers of 201610938552.6, 201610932024, and the like, the frames of the bogie are all H-shaped, and the bogie frames in the H-shaped shape have larger transverse dimensions, so that the structural dimensions of the track beam and the pier stud are correspondingly increased, the steel consumption is increased, and the line construction cost is increased.

In addition, the swing bolster of the bogie is mostly positioned above the framework, and the swing bolster is connected with the frame positioned below the bogie through the central suspension device, so that the length of the central suspension device is longer, the swing amplitude of the vehicle is larger, and the vehicle is not beneficial to passing on a curved path.

Disclosure of Invention

Aiming at the problems existing in the prior art, the invention provides a bogie, which aims to solve the technical problems that the structural sizes of a track beam and a pier stud are correspondingly increased due to the H-shaped bogie frame in the prior art, the steel amount is increased, and the line construction cost is increased.

The invention realizes the above purpose through the following technical scheme:

a bogie, the bogie comprising:

The truss comprises an upper chord beam, a lower chord beam and a connecting beam, wherein the upper chord beam and the lower chord beam are oppositely arranged, and the upper chord beam and the lower chord beam are connected through a plurality of connecting beams which are arranged at intervals;

the swing bolster is suspended in the middle of the lower string beam through the central suspension device.

Further, two connecting beams are arranged, the two connecting beams are oppositely arranged at two ends of the upper chord beam and the lower chord beam, and the middle part of the upper chord beam is connected with the middle part of the lower chord beam through two opposite central beams.

Further, a connecting hole is vertically formed in the middle of the swing bolster;

the center suspension device comprises a center pin, the upper end of the center pin is suspended on the lower chord beam, and the lower end of the center pin is rotatably connected in the connecting hole.

Further, a through hole is formed in the middle of the lower chord beam, a pin bush is fixedly arranged in the through hole, a wear-resisting plate is arranged on the lower chord beam, and the wear-resisting plate is positioned outside the through hole;

the upper end of the center pin sequentially passes through the through hole and the wear-resisting plate, the upper end of the center pin is provided with a limiting cap, and the limiting cap is arranged on the wear-resisting plate.

Further, the swing bolster comprises an upper cover plate, a lower cover plate and a web plate, wherein the upper cover plate and the lower cover plate are oppositely arranged, and the peripheral surface of the upper cover plate is connected with the peripheral surface of the lower cover plate through the web plate so as to form a box-shaped structure.

Further, the web includes first web and second web, first web is the waist shape, first web is provided with two, two first web along horizontal relative setting be in upper cover plate with down between the apron, two first web is between the second web connection that sets up through a plurality of intervals.

Further, the middle parts of the second webs positioned at the two longitudinal sides are provided with mounting holes;

The central suspension device further comprises a connecting pin, the middle part of the connecting pin movably penetrates through the central pin, two ends of the connecting pin penetrate through the two mounting holes, and locking pieces are arranged at two ends of the connecting pin.

Further, two longitudinal sides of the lower end of the center pin are provided with spigots, each spigot is internally provided with a backing plate, the backing plates are located between the second web plate and the center pin, and the connecting pin penetrates through the two backing plates.

Further, two elastic piece seats are respectively arranged at the two longitudinal ends of the swing bolster;

The central suspension device further comprises elastic pieces, and each elastic piece seat is provided with an elastic piece used for being connected to the frame.

Further, each elastic piece seat comprises a bottom plate and an elastic supporting navel, and the elastic supporting navel is fixedly arranged in the middle of the top surface of the bottom plate;

Every all be provided with first gusset in the first web, first gusset will first web is cut apart into two cavitys along transversely, all sets up second gusset and third gusset in every cavity, the second gusset with the third gusset is the cross structure, the second gusset with the top of third gusset has the breach, the upper cover plate is provided with the hole of dodging that corresponds with the breach, elastic component seat and breach correspond the setting, the bottom plate of elastic component seat is fixed to be set up on the breach that corresponds, the elastic support navel pass the upper cover plate set up with the hole of dodging that the bottom plate corresponds, the elastic component is installed on the elastic support navel.

The beneficial effects of the invention are as follows:

The invention discloses a bogie, which comprises an upper chord beam, a lower chord beam and a connecting beam, wherein the upper chord beam and the lower chord beam are oppositely arranged, and the upper chord beam and the lower chord beam are connected through a plurality of connecting beams which are arranged at intervals.

In addition, the swing bolster is hung in the middle of the lower chord beam through the central suspension device, so that the length of the central suspension device can be reduced, the swing amplitude of the center pin can be reduced, the swing amplitude of the frame can be further reduced, the opening size of the track beam can be reduced, the purposes of reducing the structural sizes of the track beam and the pier column can be achieved, the weight of the pier column and the track beam can be further reduced, and the construction cost can be reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a suspended rail transit system according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of the vehicle of FIG. 1;

FIG. 3 is a schematic top view of FIG. 2;

FIG. 4 is a schematic view of the bogie of FIG. 2;

FIG. 5 is a schematic view of the structure of the frame of FIG. 4;

FIG. 6 is a schematic diagram of the driving mechanism in FIG. 4;

FIG. 7 is a schematic view of the bolster of FIG. 4;

FIG. 8 is a schematic view of the internal structure of the bolster of FIG. 7;

FIG. 9 is a schematic view of the first web of FIG. 8;

FIG. 10 is a schematic view of the installation of the elastomeric seat;

FIG. 11 is a schematic view of the central suspension device of FIG. 4;

FIG. 12 is a schematic side view of FIG. 10;

FIG. 13 is a schematic structural view of the frame of FIG. 1;

FIG. 14 is a schematic view of the support box girder of FIG. 13 with the top plate removed;

fig. 15 is a schematic view of the structure of the supporting box girder of fig. 13 with the stay plates removed.

In the accompanying drawings: rail beam-a, pier stud-b, integrated unit-c, frame-100, bogie-200, electric traction device-300, driving mechanism-1, guide wheel-2, stabilizer-3, frame-4, upper rail-41, brake hanger 410, longitudinal stopper-411, safety rope seat-412, connecting beam-42, first motor mounting block-421, second motor mounting block 422, first through hole-423, lower rail-43, second through hole-431, center beam-44, buckle-441, wheelset mounting seat-45, transponder mounting seat-46, current collector mounting seat-47, pin sleeve-48, wear plate-49, bolster-5, upper cover plate-51, lower cover plate-52, second web-53, first web-54, circular arc plate-541, splice seam-542, pin sleeve-56, longitudinal stop-57, first elastic support seat 58, bottom plate-581, elastic support-582, second road wheel-59, third road wheel-510, first road wheel-6, center pin-61, 6, suspension pin-68, 6, vibration damper-67, brake pad-65, brake pad-12, brake pad-65, brake pad-9, brake pad-7, brake pad-65, brake pad-6, bridge-65, damper-6, bridge-67, bridge-7, damper-65, bridge-65, damper-6, bridge-67, damper-7, bridge-65, damper-7, brake pad-11, the novel side rail comprises a gear box bolt-16, a main longitudinal beam-17, a central pin hole-18, a supporting box beam 19, a top plate-191, a supporting plate-192, a connecting plate-193, a first reinforcing plate-194, a second reinforcing plate-195, a third reinforcing plate-196, a second elastic piece seat-20, a bending part-21, a rotating stop-22, a first cross beam-23, a side longitudinal rod-24, a connecting rod-25, a second cross beam-26, a lock-27 and a connecting seat-28.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The embodiment of the invention provides a suspension type rail transit system.

Fig. 1 is a schematic structural diagram of a suspension rail transit system according to an embodiment of the present invention, and in conjunction with fig. 1, the suspension rail transit system includes a vehicle and a rail beam a, the rail beam a is supported by a pier b, the vehicle includes a frame 100 and a plurality of bogies 200, the bogies 200 can travel on the rail beam a, the frame 100 and the rail beam a are connected by the bogies 200, and the frame 100 can be driven to travel under the rail beam a by driving the bogies 200.

Referring to fig. 1, in an embodiment of the present invention, an integrated unit c may be disposed at the bottom of a frame 100, and the integrated unit c may be a train compartment or a container loaded with goods, so as to drive the train compartment or the container to move, thereby completing the transportation of passengers or goods.

Fig. 2 is a schematic structural view of the vehicle in fig. 1, and fig. 3 is a schematic plan view of fig. 2. Referring to fig. 2 and 3, the vehicle according to the embodiment of the present invention includes a frame 100 and a bogie 200, and an electric traction device 300 is provided on the frame 2.

Fig. 4 is a schematic structural view of the bogie in fig. 2, and in combination with fig. 4, the bogie according to the embodiment of the present invention includes a driving mechanism 1, a guide wheel 2, a stabilizing wheel 3, a frame 4, a bolster 5, a center suspension 6, a safety rope 7, a current collector 8, and a brake disc 9.

Fig. 5 is a schematic structural view of the frame in fig. 4, and in combination with fig. 5, the frame 4 of this embodiment includes an upper bridge 41, a lower bridge 43 and a connecting bridge 42, where the upper bridge 41 and the lower bridge 43 are disposed vertically opposite to each other, and the upper bridge 41 and the lower bridge 43 are connected by a plurality of connecting bridges 42 disposed at intervals, so that the frame 4 of the bogie of this embodiment is a vertically extended structure, and compared with the structure of the bogie extending laterally in the prior art, the transverse dimension of the frame can be reduced, so as to reduce the structural dimension of the bogie, reduce the weight of the bogie, and further reduce the pier column structural dimension of the track beam and the supporting track beam, and reduce the steel consumption, so as to achieve the purpose of reducing the line construction cost.

Referring to fig. 5, in the embodiment of the present invention, a transponder mounting seat 46 and a current collector mounting seat 47 are provided at intervals on the top of the upper bridge 41, the current collector 8 is mounted on the current collector mounting seat 47, and a transponder is mounted on the transponder mounting seat 46.

Referring to fig. 5, in this embodiment, the longitudinal stops 411 are provided at both ends of the upper bridge 41 in the longitudinal direction, and when the longitudinal stops 411 contact with the stoppers provided on the rail bridge, the bogie can be stopped.

Referring to fig. 5, in particular, in the embodiment of the present invention, two connecting beams 42 are provided, two connecting beams 42 are oppositely disposed at two ends of an upper bridge 41 and a lower bridge 43, and a middle portion of the upper bridge 41 and a middle portion of the lower bridge 43 are connected by two opposite center beams 44 to strengthen the structure, so that the entire frame forms a 'mesh' -shaped structure.

Further, in the embodiment of the present invention, two ends of the upper bridge 41 may be fixedly connected to the middle of the top end of the connecting beam 42 by welding or an integrally formed manner, two ends of the lower bridge 43 are bent upwards to form a bent portion, and the bent portions of two ends of the lower bridge 43 may also be fixedly connected to the middle of the bottom end of the connecting beam 42 by welding or an integrally formed manner, so that the vertical dimension of the component may be enlarged, and an installation space is provided for installing other components.

Referring to fig. 5, in the embodiment of the present invention, a buckle 441 is further provided between each center beam 44 and the lower bridge 43 to further strengthen the structure between the center beam 44 and the lower bridge 43.

Further, referring to fig. 5, the buckling plates 441 of the embodiment of the present invention are disposed at the connection position of the center beam 44 and the lower chord beam 43, and two buckling plates 441 corresponding to the center beam 44 may be disposed symmetrically opposite to each other.

Fig. 6 is a schematic structural diagram of the driving mechanism in fig. 4, and in combination with fig. 4 to fig. 6, a plurality of driving mechanisms 1 are sequentially arranged along a longitudinal direction, the driving mechanisms 1 and the connecting beams 42 are arranged in a one-to-one correspondence, each driving mechanism 1 comprises a traction motor 15, a gear box 12 and a travelling wheel 11, the traction motor 15 is fixedly arranged on the connecting beam 42 corresponding to the driving mechanism 1, an output end of the traction motor 15 is connected with an input end of the gear box 12, the gear box 12 is fixedly connected on the upper chord beam 41, the gear box 12 is provided with two output ends, the two output ends of the gear box 12 are arranged along a transverse direction, and each output end of the gear box 12 is correspondingly provided with one travelling wheel 11.

In particular, in the embodiment of the present invention, the driving mechanism 1 and the connecting beam 42 are provided correspondingly in two.

Referring to fig. 4-6, in this embodiment, the connecting beam 42 may be shaped like a Chinese character 'kou', the inner side of the side portion of the connecting beam 42 is provided with a first motor mounting block 421, the inner side of the top portion of the connecting beam 42 is provided with a second motor mounting block 422, the traction motor 15 of the driving mechanism 1 of the bogie is fixedly arranged inside the connecting beam 42 through the first motor mounting block 421 and the second motor mounting block 422, the bottom of the upper chord beam 41 is provided with two wheelset mounting seats 45, and the guide wheel and the stabilizing wheel of each driving mechanism 1 of the bogie are correspondingly mounted on one wheelset mounting seat 45.

Referring to fig. 6, the output end of the traction motor 15 according to the embodiment of the present invention is connected to the input end of the gear box 12 through a coupling 14, a brake disc mounting seat 13 is provided on the coupling 14, and a brake disc 9 is mounted on the brake disc mounting seat 13.

Referring to fig. 4 to 6, in the embodiment of the present invention, brake hanging bases 410 are disposed at intervals at the bottom of the upper bridge 41, and a brake device is mounted on the brake hanging bases 410, and an output end of the brake device acts on the brake disc 9, so that the purpose of braking the output of the traction motor 15 can be achieved.

Referring to fig. 4-6, in the embodiment of the present invention, the top surface of the gear box 12 of each driving mechanism 1 may be fixedly connected to the bottom of the upper bridge 41 by a plurality of gear box bolts 16 to assemble the driving mechanism 1 to the frame 4.

Referring to fig. 4 and 5, in the embodiment of the present invention, a wheel set mounting seat 45 corresponding to the driving mechanism is provided at the bottom of the upper bridge 41, and a set of auxiliary wheels are provided at two lateral sides of each wheel axle mounting seat 45, wherein the auxiliary wheels include a stabilizing wheel 3 at the upper end and a guiding wheel 2 at the lower end, and the guiding wheel 2 and the stabilizing wheel 3 are matched with corresponding tracks of the track beam a, so as to improve the stability of the vehicle during running.

Further, in the embodiment of the present invention, the span between the stabilizer wheels 3 on both sides of each axle mount 45 is smaller than the span between the guide wheels 2 on both sides, so as to facilitate the smooth passage of the vehicle through the curved path.

Referring to fig. 4 and 5, in the embodiment of the present invention, the connecting beam 42 and the lower chord beam 43 are hollow, the connecting beam 42 is provided with a first threading hole 423, the lower chord beam 43 is provided with a second threading hole 431, and the connecting beam 42 and the lower chord beam 43 function as a wire slot for guiding the pipeline on the bogie 200 to the frame 100, so as to avoid the pipeline touching the track beam.

With reference to fig. 4 and 5, two safety rope seats 412 are further provided on the lower chord beam 43 at intervals, the safety rope seats 412 and the safety ropes 7 are arranged in a one-to-one correspondence, the middle parts of the safety ropes 7 are installed on the corresponding safety rope seats 412, and two ends of the safety ropes 7 can pass through the upper part of the lower chord beam of the framework and the lower part of the frame, so that safety accidents caused by breakage of the center pin and the connecting pin below can be protected, and safety of the vehicle during running can be improved.

Further, with reference to fig. 5, two safety rope seats 412 of the embodiment of the present invention may be disposed at opposite sides of the two buckle plates 441.

Referring to fig. 5, in the embodiment of the present invention, a through hole is provided in the middle of the lower bridge 43, a pin sleeve 48 is fixedly provided in the through hole, and a wear plate 49 is provided on the lower bridge 43, and the wear plate 49 is located outside the through hole and between the two center beams 44.

Referring to fig. 4, the bolster 5 of the embodiment of the present invention is suspended in the middle of the lower chord beam 43 by the central suspension device 6, wherein the central suspension device 6 includes a center pin 61, a limit cap 610 is disposed at the upper end of the center pin 61, the limit cap is located on the wear plate 49, the upper end of the center pin 61 passes through the pin sleeve 48, and the upper end of the center pin 61 is suspended on the lower chord beam 43 by the effect of the limit cap, the bolster 5 is connected to the lower end of the center pin 61, and the bolster 5 is located below the frame 100, so that the vehicle and the bogie can be connected.

Fig. 7 is a schematic structural view of the swing bolster in fig. 4, and in combination with fig. 7, the swing bolster 5 of the embodiment of the present invention is located below the frame 4 of the bogie, a connecting hole is vertically provided in the middle of the swing bolster 5, and the lower end of the center pin 61 is rotatably connected in the connecting hole, so as to realize connection between the center pin 61 and the swing bolster 5.

In the embodiment of the invention, the upper end of the center pin 61 can be movably matched with the pin sleeve 48 in a small clearance and hung on the lower chord beam 43 of the framework 4, and then the length of the center pin 61 can be reduced due to the limit of the swing bolster 5 to the lower end of the center pin 61, so as to reduce the swing amplitude of the center pin 61, further reduce the swing amplitude of the frame, reduce the opening size of the track beam, reduce the structural size of the pier column and reduce the weight of the track beam.

Fig. 8 is a schematic diagram of the internal structure of the swing bolster in fig. 7, and in combination with fig. 7 and 8, the swing bolster 5 according to the embodiment of the present invention includes an upper cover plate 51, a lower cover plate 52, and a web, where the upper cover plate 51 and the lower cover plate 52 are vertically opposite to each other, the peripheral surface of the upper cover plate 51 and the peripheral surface of the lower cover plate 52 are connected by the web, so as to form a box structure, and a through hole through which a center pin 61 passes is provided in the middle of the upper cover plate 51.

In connection with fig. 7, the upper cover plate 51 and the lower cover plate 52 of the embodiment of the present invention are narrowed at the middle of the longitudinal sides thereof to reduce the weight of the bolster 5.

Further, referring to fig. 7 and 8, the web plate of the embodiment of the present invention includes a first web plate 54 and a second web plate 53, where the first web plate 54 is in a kidney shape, the length direction of the kidney shape is longitudinal, two first web plates 54 are disposed between the upper cover plate 51 and the lower cover plate 52, and the two first web plates 54 are connected by a plurality of second web plates 53 disposed at intervals, so that the swing bolster 5 is ensured to have sufficient connection strength, and light weight is achieved.

Referring to fig. 7 and 8, the second webs 53 of the embodiment of the present invention are divided into two opposite groups in the longitudinal direction, the middle portion of each second web 53 is provided with a coaxial mounting hole, a connection pin 66 is mounted in the mounting hole, the lower end of the center pin 61 is disposed between the two groups of second webs 53, and the middle portion of the connection pin 66 rotatably passes through the lower end of the center pin 61 to achieve rotatable connection of the lower end of the center pin 61 and the bolster 5.

Further, referring to fig. 4, 7 and 8, a pin sleeve 56 may be disposed in the mounting hole of the embodiment of the present invention, and two ends of the connecting pin 66 are fixed through the pin sleeve 56 in the corresponding mounting hole, so that wear of the center pin 61 on the mounting hole may be reduced, and the service life of the swing bolster may be improved by replacing the pin sleeve 56.

Further, in the embodiment of the present invention, locking members are disposed at both ends of the connecting pin 66, and the locking members are disposed at the outer ends of the pin sleeves 56 at the same end, so as to realize the assembly of the connecting pin 66 on the bolster.

The locking member of the embodiment of the present invention may be a locking screw or the like, which is not limited in the embodiment of the present invention.

Fig. 9 is a schematic structural diagram of the first web plate in fig. 8, and in combination with the schematic structural diagram, each first web plate 54 in the embodiment of the present invention is formed by welding two circular arc plates 541, two splicing seams 542 are formed after the two circular arc plates 541 are welded, and the two splicing seams 542 are arranged in an oblique symmetry manner so as to avoid interference with the second transverse rib 59 in the following.

In the embodiment of the present invention, two first elastic member seats 58 are respectively disposed at two longitudinal ends of the swing bolster 5, fig. 10 is a schematic installation diagram of the elastic member seats, and in the embodiment, each first elastic member seat 58 includes a bottom plate 581 and an elastic support umbilical 582, and the elastic support umbilical 582 is fixedly disposed in the middle of the top surface of the bottom plate 581, in conjunction with fig. 10.

Further, in the embodiment of the present invention, with reference to fig. 8 and fig. 10, each first web 54 is provided with a first rib plate 511, the first rib plate 511 divides the first web 54 into two cavities along a transverse direction, each cavity is provided with a second rib plate 59 and a third rib plate 510, the second rib plates 59 and the third rib plates 510 are in a cross structure, the tops of the second rib plates 59 and the third rib plates 510 are provided with notches, the upper cover plate 51 is provided with avoidance holes corresponding to the notches, the elastic support umbilicus 582 is correspondingly arranged with the notches, the bottom plate 581 of the first elastic member seat 58 is fixedly arranged on the corresponding notches, and the elastic support umbilicus 582 passes through the avoidance holes corresponding to the bottom plate 581 and is arranged on the upper cover plate 51, so as to realize the installation of the first elastic member seat 58 on the swing bolster 5.

In the embodiment of the invention, both sides of the second rib plate 59 and the third rib plate 510 at the notch are inclined planes, and the elastic piece navel is in a frustum shape, so as to avoid the rubber outer drum caused by the elastic piece 64 mounted on the first elastic supporting seat 58 under the heavy vehicle working condition, and further prevent the rubber and the metal piece from being damaged due to friction.

Referring to fig. 8, in this embodiment, the sides of the two first webs 54 facing away from each other are provided with damper mounting seats 55 for mounting dampers, and two ends of one longitudinal side of the bolster 5 are provided with longitudinal stops 57 to prevent the bolster from being damaged by the impact with the outside during swinging.

Fig. 11 is a schematic structural view of the central suspension device in fig. 4, fig. 12 is a schematic side view of fig. 11, and in combination with fig. 4, 11 and 12, the central suspension device 6 according to the embodiment of the present invention further includes a sway damper 62, a vertical damper 63, an elastic member 64, a lateral stop 65, a connection pin 66, a pad 67, a longitudinal stop 69 and the bolster 5 described above, in addition to the center pin 61.

Referring to fig. 11, in the embodiment of the present invention, a stopper 68 provided at an upper end of the center pin 61 may be integrally formed with the center pin 61 or welded thereto.

In this embodiment, the limiting cap 68 may be in a oval shape, and the length direction of the limiting cap 68 is transverse.

Referring to fig. 11 and 12, two swing dampers 62 are provided in the embodiment of the present invention, the upper ends of the two swing dampers 62 are respectively connected to the two lateral ends of the limit cap, the lower ends of the two swing dampers 62 are connected to the frame, and the bolster 5 is disposed below the frame.

Preferably, in this embodiment, the two sway absorbers 62 are splayed, and the angle between the central axis of the sway absorber 62 and the top surface of the frame is preferably 60 °.

Referring to fig. 11 and 12, in the embodiment of the present invention, two vertical dampers 63 are also provided, the vertical dampers 63 and the damper mounting seats 55 are arranged in a one-to-one correspondence, the lower ends of the vertical dampers 63 are connected to the corresponding damper mounting seats 55, and the upper ends of the two vertical dampers 63 are connected to the two lateral ends of the frame.

According to the embodiment of the invention, through the arrangement of the swing damper 62 and the vertical damper 63, the vibration damping performance of the vehicle during running can be improved, wherein the central axis of the swing damper 62 is inclined, and meanwhile, the swing damping and the vertical damping are provided, and if the running speed of the vehicle is lower, the vertical damper 63 can be canceled.

In the embodiment of the present invention, the lower end of the center pin 61 passes through the frame, and is engaged with the connection pin 66 so that the lower end of the center pin 61 is rotatably connected in the connection hole of the bolster 5.

Referring to fig. 11 and 12, a plurality of elastic members 64 are provided in the embodiment of the present invention, the plurality of elastic members 64 are spaced around the central axis of the center pin 61, and both ends of the elastic members 64 are respectively connected between the bolster and the frame.

Specifically, the lower end of the elastic member 64 of the present embodiment is assembled in the first elastic support umbilicus 582 on the first elastic support seat 58, while the upper end of the elastic member 64 is connected to the bottom of the frame, so that not only the vehicle running direction can be buffered, but also the center pin and the frame can not be directly connected, and the center pin and the frame can form a flexible connection through the arrangement of the elastic member, so that the rigid impact influence caused by the direct connection of the center pin and the frame in the prior art is avoided, the stress level of the frame is improved, and the fatigue life of the frame is prolonged.

In addition, the elastic piece and the swing bolster are arranged below the frame, so that the overall height of the vehicle is not increased, the transverse swing rigidity of the vehicle is small, the frame has very small swing, transverse movement and side rolling rigidity, the dynamic performance is excellent, the stress of the frame and the swing bolster is pressure, and the weld fatigue performance and the suspension safety are good.

Referring to fig. 11 and 12, in the embodiment of the present invention, the transverse stoppers 65 and the longitudinal stoppers 69 form a stopper assembly, the stopper assembly is mounted on the frame, the transverse stoppers 65 are oppositely disposed at two sides of the center pin 61, the longitudinal stoppers 69 are oppositely disposed at two sides of the center pin 61, and the two longitudinal stoppers 69 are disposed at two sides of the center pin 61 to limit the rotation angle of the center pin.

Preferably, the stop assembly of the present embodiment has two lateral stops 65 disposed vertically to enhance the ability to limit the lateral displacement swing of the frame.

In this embodiment, in combination with fig. 12, the two sides of the lower end of the center pin 61 are provided with the spigot, each spigot is provided with the pad 67, the connecting pin 66 passes through the two pads 67, the pad 16 can prevent friction between the second web and the center pin 61, and the strength and the service life of the center pin 61 are reduced.

Because the center pin 61 of the embodiment of the invention is hung in the middle of the lower cantilever beam 43, namely, the center pin 61 is arranged at the bottom of the framework 4, compared with the technical proposal that the center pin 61 is arranged at the top of the framework 4 in the prior art, the length of the center pin 61 can be reduced, and the original 2m is shortened to be less than 600mm, thereby not only greatly reducing the manufacturing cost, but also greatly reducing the additional bending moment of the center pin when the vehicle runs and improving the safety.

In addition, the framework in the embodiment of the invention runs on the rail beam through the driving mechanism, the swing bolster is positioned below the frame, and the swing amplitude of the swing bolster and the frame can be limited through limiting the two ends of the center pin, so that the opening size of the rail beam can be reduced, the structural size of the pier column can be reduced, the purposes of reducing the weight of the pier column and the rail beam can be achieved, steel can be saved, and the cost can be reduced.

Fig. 13 is a schematic structural view of the frame of fig. 1, and referring to fig. 13, a frame 100 according to an embodiment of the present invention includes a base frame 10, where the base frame 10 includes a main girder 17, the main girder 17 may adopt a fish-web girder structure with a middle high and two low ends, a plurality of center pin holes 18 are disposed on the main girder at intervals, the center pin holes 18 and the center pins 61 are disposed in one-to-one correspondence, the lower ends of the center pins 61 movably pass through the corresponding center pin holes 18, the lower ends of the center pins 18 are connected with a swing bolster 5, the swing bolster 5 is located below the base frame, and a plurality of elastic members 55 are disposed between the swing bolster 5 and the main girder 17.

Specifically, in this embodiment, two center pin holes 18 and center pins 61 are provided correspondingly, and four elastic members 55 are provided, and four elastic members 5 are provided at intervals around the center axis of the center pin hole 18, alternatively, springs may be used.

Referring to fig. 12, in this embodiment, the main longitudinal beam 17 has support box beams 19 corresponding to the center pin holes 18, one center pin hole 18 is provided in the middle of each support box beam 19, and a plurality of elastic members 55 are provided between the bolster 5 and the support box beam 19.

In the embodiment of the invention, the center pin is responsible for the connection between the framework of the bogie and the swing bolster, the elastic piece is responsible for the vertical supporting force between the swing bolster and the frame and is used for connecting the swing bolster and the frame, the elastic piece can be a rubber spring and provides a vertical vibration reduction function, the upper end surface and the lower end surface of the elastic piece can be relatively twisted within a certain angle range, when the bogie drives the swing bolster to turn, the frame can turn along with the torsional moment, so as to adapt to the turning of the bogie, and the elastic piece can form dispersed support for the frame so as to improve the stress level of the frame and the fatigue life of the frame.

As described above, in the present embodiment, four elastic members 64 are provided, and four elastic members 64 are disposed at intervals around the center axis of the center pin hole 18.

Fig. 14 is a schematic view of the structure of the supporting box girder in fig. 13 with the top plate removed, fig. 15 is a schematic view of the structure of the supporting box girder in fig. 13 with the supporting plate removed, and in combination with fig. 12 to 14, the supporting box girder 19 of this embodiment includes a top plate 191, a supporting plate 192 and a connecting plate 193, the top plate 191 and the supporting plate 192 are disposed opposite to each other, the periphery of the top plate 191 and the periphery of the supporting plate 192 are connected by the connecting plate 193 to form a box structure, the top plate 191 and the supporting plate 192 are each provided with a center pin hole 18 through which a center pin passes, and the main girder 17 is fixed through the connecting plate 193 to realize the assembly of the supporting box girder 19 on the main girder 17, wherein the main girder 17 divides the box structure into two cavities.

Referring to fig. 14-15, the supporting box girder 19 of the present embodiment further includes a first reinforcing plate 194, a second reinforcing plate 195 and a third reinforcing plate 196, each of the cavities is provided with the first reinforcing plate 194, the first reinforcing plate 194 is disposed in a transverse direction, the first reinforcing plate 194 divides the cavity into two chambers, each of the chambers is provided with the second reinforcing plate 195 and the third reinforcing plate 196, the second reinforcing plate 195 and the third reinforcing plate 196 are in a cross structure, and the first reinforcing plate 194, the second reinforcing plate 195 and the third reinforcing plate 196 can reinforce the structure of the supporting box girder.

In this embodiment, the bottoms of the second reinforcing plate 195 and the third reinforcing plate 196 have notches, the supporting plate 192 is provided with avoiding holes corresponding to the notches, and the upper end of each elastic member 64 is correspondingly connected to one notch through the second elastic member seat 20, so as to realize the installation of the elastic member 64 on the supporting box girder.

The second elastic member seat 20 and the first elastic member seat 58 of this embodiment have the same structure, and each include a bottom plate and an elastic support navel, the elastic support navel is fixedly disposed in the middle of the bottom surface of the bottom plate, the bottom plate of the second elastic member seat 20 is fixedly disposed on the corresponding notch, the elastic support navel of the second elastic member seat passes through the avoiding hole disposed in the supporting plate 192, and the upper end of the elastic member 64 is connected to the elastic support navel.

In the embodiment, the two sides of the second reinforcing plate 195 and the third reinforcing plate 196 at the notch are inclined planes, and the umbilicus of the elastic element is shaped like a frustum, so as to avoid the rubber outer drum caused by the elastic element 64 mounted on the second elastic supporting seat 20 under the heavy vehicle working condition, and further prevent the rubber from being damaged due to friction with the metal element.

Further, with reference to fig. 13-15, the stop assembly of the present embodiment described above is disposed within the support box beam 19 of the frame to limit the longitudinal and lateral rotation angles of the frame.

Referring to fig. 13-15, in this embodiment, the two longitudinal sides of the bottom of the supporting box beam 19 are bent downward to form bending portions 21, and each bending portion is provided with a rotation stop 22 to enhance the rotation limiting function of the base frame, so as to limit the rotation angle of the frame, prevent adverse effects caused by direct transmission collision between the frame and the swing bolster when the frame swings, and improve the reliability of vehicle operation.

Referring to fig. 14 and 15, in the present embodiment, the two lateral ends of the supporting box beam 19 are provided with connecting seats 28, and the lower ends of the two vibration dampers 62 are respectively connected to the connecting seats 28 provided at the two lateral ends of the supporting box beam 19.

Referring to fig. 12, the base frame of the present embodiment further includes first cross members 23, two first cross members 23 are disposed on both sides of each supporting box beam 19 in the longitudinal direction, and the middle portions of the two first cross members 23 are connected by the main longitudinal member 17, so that the load-carrying capacity of the frame can be improved.

Further, in this embodiment, the middle portion of each first cross member 23 is provided with a groove, and the main longitudinal member 17 may be fixedly embedded in the grooves of the middle portions of the plurality of first cross members 23 by using a welding manner.

Referring to fig. 12, in this embodiment, the base frame further includes a side rail 24 and a connecting rod 25, where the end portions of the first cross members 23 located on the same side are connected by the side rail 24, and the side rail 24 and the main longitudinal member 17 are connected by a plurality of connecting rods 25 disposed at intervals, so as to further improve the load-bearing capacity of the frame.

Referring to fig. 12, in this embodiment, the base frame further includes a plurality of second cross members 26, wherein inner ends of the plurality of second cross members 26 are vertically connected to the side edges of the main longitudinal beam 17, and outer ends of the plurality of second cross members 26 are connected to the side rail 24, so as to further improve the load-bearing capacity of the frame.

Further, the electric traction device 300 of the present embodiment may be disposed on the second beam 26, and two ends of the first beam 23 may be provided with locks 27 for connecting the train compartment or the container with goods, and the locks 27 may be a container transporting and anti-falling device in chinese patent No. 2018222496756, which is not described in detail in this embodiment.

In summary, in the suspension rail transit system according to the embodiment of the present invention, the components of the bogie are configured to be vertically extended, the upper end of the center pin is suspended at the middle of the lower chord beam of the framework of the bogie, and the lower end of the center pin passes through the frame and is rotatably connected to the bolster, so that the length of the center pin can be reduced, the swing of the vehicle during traveling is reduced, and further the pier column structure sizes of the rail beam and the supporting rail beam can be improved, so that the steel consumption is reduced, the line construction cost is reduced, and the suspension rail transit system has good practical value.

The above examples are provided for convenience of description of the present invention and are not to be construed as limiting the invention in any way, and any person skilled in the art will realize that the present invention is not limited to the details of the present invention, but is intended to cover all modifications, variations, modifications, and equivalent arrangements of the present invention without departing from the scope of the technical features of the present invention.

Claims

1. A bogie, the bogie comprising:

The swing bolster is suspended in the middle of the lower string beam through the central suspension device;

the two connecting beams are oppositely arranged at two ends of the upper chord beam and the lower chord beam, and the middle part of the upper chord beam is connected with the middle part of the lower chord beam through two opposite central beams;

the middle part of the swing bolster is vertically provided with a connecting hole;

the central suspension device comprises a central pin, the upper end of the central pin is suspended on the lower chord beam, and the lower end of the central pin is rotatably connected in the connecting hole;

the swing bolster comprises an upper cover plate, a lower cover plate and a web plate, wherein the upper cover plate and the lower cover plate are arranged opposite to each other, and the peripheral surface of the upper cover plate is connected with the peripheral surface of the lower cover plate through the web plate so as to form a box-shaped structure;

The web comprises first webs and second webs, the first webs are waist-shaped, two first webs are arranged and are transversely oppositely arranged between the upper cover plate and the lower cover plate, and the two first webs are connected through a plurality of second webs arranged at intervals;

Two elastic piece seats are respectively arranged at the two longitudinal ends of the swing bolster;

The central suspension device further comprises elastic pieces, and each elastic piece seat is provided with an elastic piece used for being connected to the frame;

Each elastic piece seat comprises a bottom plate and an elastic supporting navel, and the elastic supporting navel is fixedly arranged in the middle of the top surface of the bottom plate;

2. The bogie according to claim 1, wherein a through hole is formed in the middle of the lower chord beam, a pin bush is fixedly arranged in the through hole, a wear-resistant plate is arranged on the lower chord beam, and the wear-resistant plate is located outside the through hole;

3. The bogie of claim 1, wherein the second web is provided with mounting holes in the middle of the second web on both sides in the longitudinal direction;

4. A bogie according to claim 3 wherein the centre pins are provided with spigots on both longitudinal sides of the lower end, each spigot being provided with a shim plate therein, the shim plates being located between the second web and the centre pins, the connecting pins passing through both shim plates.