WO2022083251A1

WO2022083251A1 - Central suspension device, bogie, and suspended rail transit system

Info

Publication number: WO2022083251A1
Application number: PCT/CN2021/112564
Authority: WO
Inventors: 苏利杰; 刘爱文; 王全虎; 姚雄; 罗辉; 黄美林; 黄恒; 陈治国; 孙博; 柯晓乐; 崔灿; 冯晔; 侯建云; 梅琨; 宋少波; 刘伟; 彭全海; 尹刚
Original assignee: 中车长江车辆有限公司
Priority date: 2020-10-20
Filing date: 2021-08-13
Publication date: 2022-04-28
Also published as: EP4234357A4; AU2021366578A1; EP4234357A1; AU2021366578B2

Abstract

A central suspension device (6), a bogie (200), and a suspended rail transit system. The suspended rail transit system comprises a rail beam (a), a vehicle frame (100) and bogies (200), the vehicle frame (100) being connected to the rail beam (a) by means of the plurality of bogies (200), and each bogie (200) comprising a framework (4), a swing bolster (5) and a central suspension device (6), wherein the framework (4) comprises an upper chord beam (41), a lower chord beam (43) and connecting beams (42), the upper chord beam (41) and the lower chord beam (43) are arranged opposite each other, and the upper chord beam (41) and the lower chord beam (43) are connected by means of the plurality of connecting beams (42) arranged at intervals; and the swing bolster (5) is suspended in the middle of the lower chord beam (43) by means of the central suspension device (6), and the swing bolster (5) is arranged below the vehicle frame (100), and can be driven by the the bogies (200) to drive the vehicle frame (100) to travel below the rail beam (a). In the system, the structural sizes of the rail beam (a) and a pier column (b) which supports the rail beam (a) can be reduced, so as to reduce the steel consumption and achieve the aim of reducing the line construction cost.

Description

Central Suspension, Bogies and Suspended Rail Transit Systems

CROSS-REFERENCE TO RELATED APPLICATIONS

This application requires a Chinese patent application filed on October 20, 2020 with an application number of 202011126901.7 and the title of "Central Suspension Device", filed on October 20, 2020, with an application number of 202011126908.9 and the title of "Suspension Rail Transit" System" and the priority of the Chinese patent application filed on October 20, 2020 with application number 202011126928.6 and entitled "Bogie", the entire contents of which are hereby incorporated by reference.

technical field

The present disclosure relates to the technical field of rail transit, and in particular, to a central suspension device, a bogie, and a suspended rail transit system.

Background technique

The suspended rail transit system uses a box-section rail beam with an open bottom, the frame runs under the rail beam, and the frame and the rail beam are connected by a bogie.

In the prior art, the frame of the bogie is mostly H-shaped. For example, in the patent documents disclosed with the patent numbers of "201610938552.6" and "201610932024.X", the frame of the bogie is all H-shaped, and the bogie frame of the H-shaped shape , has a larger lateral size, resulting in a corresponding increase in the size of the track beam and pier column structure, resulting in an increase in the amount of steel used, resulting in an increase in the cost of line construction.

In addition, the bolster of the bogie is mostly located above the frame, and the bolster is connected to the frame under the bogie through the central suspension device, resulting in a longer length of the central suspension device and a larger swing of the vehicle, which is not conducive to the curved path. passed on.

SUMMARY OF THE INVENTION

In view of the above-mentioned deficiencies in the prior art, the present disclosure provides a central suspension device, a bogie, and a suspended rail transit system, so as to solve the increase in the cost of line construction caused by the increase of the frame load in the prior art technical issues.

In one aspect of the present disclosure, a central suspension device is provided, which includes a center pin and a bolster, an upper end of the center pin is suspended on a frame of a bogie, and the bolster is located below the frame, so The lower end of the center pin and the bolster are rotatably connected.

In some embodiments, the upper end of the center pin is provided with a limiting cap.

In some embodiments, the device further includes two rocking dampers, the upper ends of the two rocking dampers are respectively connected to the lateral ends of the limiting cap, and the two rocking dampers are The lower end is connected to the frame, and the bolster is arranged under the frame.

In some embodiments, the two sway dampers are in a figure-eight shape, and the included angle between the central axis of the sway dampers and the top surface of the frame is 60°.

In some embodiments, the lateral ends of the bolster are provided with shock absorber mounts; the device further includes two vertical shock absorbers, the vertical shock absorbers and the shock absorber mounts One-to-one corresponding arrangement, the lower ends of the vertical shock absorbers are connected to the corresponding shock absorber mounting seats, and the upper ends of the two vertical shock absorbers are connected to the lateral ends of the vehicle frame.

In some embodiments, a connecting hole is vertically disposed in the middle of the bolster, the lower end of the center pin passes through the frame, and the lower end of the center pin is disposed in the connecting hole; the device It also includes a connecting pin, the middle part of the connecting pin moves through the lower end of the center pin in the longitudinal direction, the two ends of the connecting pin move through the bolster, and both ends of the connecting pin are provided with locking screw.

In some embodiments, the device further comprises an elastic member, a plurality of the elastic members are arranged, the plurality of the elastic members are arranged at intervals around the central axis of the center pin, and the two ends of the elastic member are respectively connected to between the bolster and the frame.

In some embodiments, the device further includes a stopper assembly mounted on the frame, the stopper assembly comprising a lateral stopper and a longitudinal stopper, two of the lateral stoppers are oppositely arranged, and the two said The transverse stops are arranged on both lateral sides of the center pin, and two longitudinal stops are arranged opposite to each other, and the two longitudinal stops are arranged on the longitudinal sides of the center pin.

In some embodiments, two of the stopper assemblies are arranged vertically.

In some embodiments, two longitudinal sides of the lower end of the center pin are provided with a stop, each stop is provided with a backing plate, and the connecting pin passes through two of the backing plates.

The present disclosure discloses a central suspension device, which includes a center pin and a bolster, the upper end of the center pin is suspended on a frame of a bogie, the bolster is located below the frame, the bolster includes a bolster, and the lower end of the center pin is It can be rotatably connected with the bolster. This connection method can not only reduce the length of the center pin of the central suspension device, but also limit the lower end of the center pin to reduce the swing range of the center pin, thereby reducing the swing range of the frame. , in order to reduce the opening size of the track beam and achieve the purpose of reducing the structural size of the track beam and the pier column, thereby reducing the weight of the pier column and the track beam and reducing the construction cost.

In another aspect of the present disclosure, a bogie is provided, comprising: a frame including an upper chord, a lower chord and a connecting beam, the upper chord and the lower chord are oppositely arranged, the upper chord and The lower chord beams are connected by a plurality of the connecting beams arranged at intervals; the bolster and the above-mentioned central suspension device, the bolster is suspended in the middle of the lower chord beam through the central suspension device.

In some embodiments, there are two connecting beams, and the two connecting beams are oppositely disposed at both ends of the upper chord and the lower chord, the middle of the upper chord and the middle of the lower chord It is connected by two opposite central beams.

In a bogie of the present disclosure, since the structure of the bogie includes an upper chord, a lower chord and a connecting beam, the upper chord and the lower chord are arranged oppositely, and the upper chord and the lower chord are connected by a plurality of connecting beams arranged at intervals, Therefore, the frame of the present invention is a vertically extending structure, and has a smaller lateral dimension compared with the frame structure of the laterally extending bogie in the prior art, thereby reducing the distance between the track beam and the supporting track beam. The size of the pier column structure can reduce the amount of steel used and achieve the purpose of reducing the cost of line construction.

In addition, the bolster of the present invention is suspended in the middle of the lower chord beam through the central suspension device, which can reduce the length of the central suspension device to reduce the swing range of the center pin, thereby reducing the swing range of the frame, so as to reduce the length of the rail beam. The size of the opening can be reduced to reduce the structural size of the track beam and the pier column, thereby reducing the weight of the pier column and the track beam and reducing the construction cost.

In yet another aspect of the present disclosure, a suspended rail transit system is provided, which includes a rail beam and a vehicle, the vehicle includes a vehicle frame and the above-mentioned bogie, and a plurality of The bogies are connected, each of the bogies includes a frame, a bolster and a central suspension device, the frame includes an upper chord, a lower chord and a connecting beam, the upper chord and the lower chord are arranged oppositely, the The upper chord and the lower chord are connected by a plurality of the connecting beams arranged at intervals, the bolster is suspended in the middle of the lower chord by the central suspension device, and the bolster is arranged on the vehicle Under the frame, under the driving of the bogie, the vehicle frame can be driven to run under the rail beam.

The present disclosure discloses a suspended rail transit system, which includes a rail beam and a vehicle. The vehicle includes a vehicle frame and a bogie. Since the upper chord and the lower chord of the bogie frame are provided by a plurality of spaced connecting beams Therefore, the structure of the bogie of the present disclosure is a vertically extending structure, and its lateral dimension can be reduced compared to the structure of the laterally extending bogie in the prior art, so as to reduce the structure of the bogie size, reduce the weight of the bogie, and then reduce the size of the track beam and the pier column structure supporting the track beam, so as to reduce the amount of steel used and achieve the purpose of reducing the cost of line construction.

In addition, since the bolster is suspended in the middle of the lower string through the central suspension device, and the bolster is arranged under the frame, this connection method can reduce the length of the center pin of the central suspension device, so as to reduce the swing amplitude of the center pin, thereby reducing the swing of the center pin. The swing range of the frame can be reduced to reduce the opening size of the track beam, so as to achieve the purpose of reducing the structural size of the track beam and the pier column, thereby reducing the weight of the pier column and the track beam and reducing the construction cost.

Description of drawings

FIG. 1 is a schematic structural diagram of a suspended rail transit system according to some embodiments of the present disclosure.

FIG. 2 is a schematic structural diagram of the vehicle in FIG. 1 .

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

FIG. 4 is a schematic structural diagram of the bogie in FIG. 2 .

FIG. 5 is a schematic structural diagram of the framework in FIG. 4 .

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

FIG. 7 is a schematic structural diagram of the bolster in FIG. 4 .

FIG. 8 is a schematic diagram of the internal structure of the bolster in FIG. 7 .

FIG. 9 is a schematic structural diagram of the first web in FIG. 8 .

FIG. 10 is a schematic diagram of the installation of the elastic member seat.

FIG. 11 is a schematic structural diagram of the central suspension device in FIG. 4 .

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

FIG. 13 is a schematic structural diagram of the vehicle frame of FIG. 1 .

FIG. 14 is a schematic structural diagram of the support box girder in FIG. 13 with the top plate removed.

FIG. 15 is a schematic structural diagram of the support box girder in FIG. 13 with the support plate removed.

In the drawings: track beam-a, pier column-b, integrated unit-c, frame-100, bogie-200, electric traction device-300, drive mechanism-1, guide wheel-2, stabilizer wheel-3 , frame-4, top string beam-41, brake hanger 410, longitudinal block-411, safety rope seat-412, connecting beam-42, first motor mounting block-421, second motor mounting block 422, first threading Hole-423, Bottom String-43, Second Threading Hole-431, Center Beam-44, Pinch Plate-441, Wheel Mount-45, Transponder Mount-46, Receiver Mount-47, Pin Sleeve -48, wear plate-49, bolster-5, upper cover-51, lower cover-52, second web-53, first web-54, arc plate-541, seam-542 , pin sleeve-56, longitudinal stop-57, first elastic support seat 58, bottom plate-581, elastic support umbilical-582, second rib plate-59, third rib plate-510, first rib plate-511 , Central Suspension Device-6, Center Pin-61, Swing Damper-62, Vertical Damper-63 Elastic Part-64, Lateral Stop-65, Connecting Pin-66, Backing Plate-67, Limit Cap-68, Longitudinal Stop-69, Safety Rope-7, Current Receiver-8, Brake Disc-9, Base Frame 10, Travel Wheel-11, Gear Box-12, Brake Disc Mount-13, Coupling Axle-14, traction motor 15, gearbox bolt-16, main longitudinal beam-17, center pin hole-18, support box beam 19, top plate-191, support plate-192, connecting plate-193, first reinforcing plate -194, second reinforcing plate-195, third reinforcing plate-196, second elastic member seat-20, bending part-21, rotation stop-22, first beam-23, side longitudinal rod-24, connection Rod-25, second beam-26, lock-27, connecting seat-28.

Detailed ways

FIG. 1 is a schematic structural diagram of a suspended rail transit system according to some embodiments of the present disclosure. 1 , the system includes a vehicle and a track beam a. The track beam a is supported by a pier b. The vehicle includes a vehicle frame 100 and a plurality of bogies 200 . A plurality of bogies 200 are connected with the track beam a, and the vehicle frame 100 can be driven to run under the track beam a under the driving of the bogies 200 .

1 , an integrated unit c may be provided at the bottom of the vehicle frame 100 , and the integrated unit c may be a train car or a container with goods to drive the train car or container to move to complete the transportation of passengers or goods.

FIG. 2 is a schematic structural diagram of the vehicle in FIG. 1 , and FIG. 3 is a schematic top view of FIG. 2 . 2 and 3 , the vehicle includes a vehicle frame 100 and a bogie 200 , and an electric traction device 300 is provided on the vehicle frame 2 .

Fig. 4 is a schematic structural diagram of the bogie in Fig. 2. In combination with Fig. 4, the bogie includes a driving mechanism 1, a guide wheel 2, a stabilizing wheel 3, a frame 4, a bolster 5, a central suspension device 6, a safety rope 7, a receiving runner 8 and brake disc 9.

FIG. 5 is a schematic structural diagram of the frame in FIG. 4 , in conjunction with FIG. 5 , the frame 4 includes an upper chord 41 , a lower chord 43 and a connecting beam 42 , the upper chord 41 and the lower chord 43 are vertically oppositely arranged, and the upper chord 41 and the lower chord 43 are connected by a plurality of spaced connecting beams 42. Therefore, the frame 4 of the bogie is a vertically extending structure, which can reduce the horizontal In order to reduce the structural size of the bogie and reduce the weight of the bogie, the structural size of the track beam and the pier column supporting the track beam can be reduced, and the amount of steel used can be reduced to achieve the purpose of reducing the cost of line construction.

5, the top of the upper string beam 41 is provided with a transponder mounting seat 46 and a current receiver mounting seat 47 at intervals, the current receiver 8 is mounted on the current receiver mounting seat 47, and the transponder mounting seat 46 is mounted with a response device.

Referring to FIG. 5 , longitudinal blocks 411 are provided on both longitudinal ends of the upper chord beam 41 . When the longitudinal blocks 411 are in contact with the blocks provided on the track beam, the bogie can be stopped.

5 , two connecting beams 42 are provided, and the two connecting beams 42 are oppositely arranged at both ends of the upper chord 41 and the lower chord 43 , and the middle part of the upper chord 41 and the middle part of the lower chord 43 pass through two opposite Central beams 44 are connected to strengthen the structure so that the entire frame forms a "mesh" shape.

Both ends of the upper chord 41 can be fixedly connected to the middle of the top end of the connecting beam 42 by welding or integral molding. It is fixedly connected to the middle of the bottom end of the connecting beam 42 by welding or integral molding, so that the vertical dimension of the component can be enlarged and an installation space is provided for the installation of other components.

Referring to FIG. 5 , a gusset 441 is further provided between each central beam 44 and the lower chord 43 to further strengthen the structure between the central beam 44 and the lower chord 43 .

Referring to FIG. 5 , the gusset plate 441 is disposed at the connection between the central beam 44 and the lower chord beam 43 , and the two gusset plates 441 corresponding to the central beam 44 can be arranged symmetrically to each other.

Fig. 6 is a schematic structural diagram of the driving mechanism in Fig. 4. With reference to Figs. 4 to 6, a plurality of driving mechanisms 1 are arranged in sequence along the longitudinal direction. The driving mechanisms 1 and the connecting beams 42 are arranged in a one-to-one correspondence. The traction motor 15, the gear box 12 and the traveling wheel 11, the traction motor 15 is fixedly arranged on the connecting beam 42 corresponding to the driving mechanism 1, the output end of the traction motor 15 is connected with the input end of the gear box 12, and the gear box 12 is fixedly connected to the On the upper chord beam 41 , the gear box 12 has two output ends, the two output ends of the gear box 12 are arranged laterally, and each output end of the gear box 12 is provided with a traveling wheel 11 correspondingly.

There are two driving mechanisms 1 and two connecting beams 42 correspondingly.

4 to 6, the connecting beam 42 can be in the shape of a mouth, the inner side of the connecting beam 42 is provided with a first motor mounting block 421, the top inner side of the connecting beam 42 is provided with a second motor mounting block 422, the driving of the bogie The traction motor 15 of the mechanism 1 is fixedly arranged inside the connecting beam 42 through the first motor mounting block 421 and the second motor mounting block 422, and the bottom of the upper string beam 41 is provided with two wheel set mounting seats 45. Each drive of the bogie drives The guide wheel and the stabilizing wheel of the mechanism 1 are correspondingly mounted on a wheel set mounting seat 45 .

6, the output end of the traction motor 15 is connected to the input end of the gear box 12 through the coupling 14, the coupling 14 is provided with a brake disc mount 13, and the brake disc mount 13 is mounted with a brake disc 9.

4 to 6 , a brake hanger 410 is provided at intervals at the bottom of the upper chord beam 41 , a brake device is installed on the brake hanger 410 , and the output end of the brake device acts on the brake disc 9 , that is, The purpose of braking the output of the traction motor 15 is achieved.

4-6 , the top surface of the gear box 12 of each driving mechanism 1 can be fixedly connected to the bottom of the upper string beam 41 through a plurality of gear box bolts 16 to assemble the driving mechanism 1 on the frame 4 .

4 and 5, the bottom of the upper chord beam 41 is provided with a wheel set mounting seat 45 corresponding to the driving mechanism, and a set of auxiliary wheels are provided on both lateral sides of each wheel axle mounting seat 45, and the auxiliary wheels include a stabilizing wheel located at the upper end. 3 and the guide wheel 2 at the lower end, the guide wheel 2 and the stabilizing wheel 3 are matched with the corresponding track of the track beam a to improve the stability of the vehicle during operation.

The span between the two sides of the stabilizing wheels 3 on each axle mounting seat 45 is smaller than the span between the two sides of the guide wheels 2, so as to facilitate the vehicle to smoothly pass the curved path.

4 and 5, the connecting beam 42 and the lower chord 43 are both hollow structures, the connecting beam 42 is provided with a first threading hole 423, the lower chord 43 is provided with a second threading hole 431, the connecting beam 42 and the lower chord 43 It plays the role of a wire groove, and is used to guide the pipeline on the bogie 200 to the frame 100 to prevent the pipeline from colliding with the track beam.

4 and 5 , two safety rope seats 412 are also arranged on the lower string beam 43 at intervals. The safety rope seats 412 and the safety ropes 7 are arranged in one-to-one correspondence, and the middle part of the safety rope 7 is installed on the corresponding safety rope bases 412. Both ends of the safety rope 7 can pass above the lower chord of the frame and below the frame, and play a protective role in the safety accident caused by the breakage of the center pin and the connecting pin below, so as to improve the safety of the vehicle during operation.

Referring to FIG. 5 , the two safety rope seats 412 may be disposed on opposite sides of the two buckle plates 441 .

5 , a through hole is provided in the middle of the lower chord 43, a pin sleeve 48 is fixed in the through hole, and a wear plate 49 is arranged on the lower chord 43, and the wear plate 49 is located outside the through hole and located in the two centers between beams 44.

4, the bolster 5 is suspended in the middle of the lower string beam 43 by the central suspension device 6, wherein the central suspension device 6 includes a center pin 61, the upper end of the center pin 61 is provided with a limit cap 610, and 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 through the action of the limiting cap, the upper end of the center pin 61 is suspended on the lower chord 43, the bolster 5 is connected to the lower end of the center pin 61, and the bolster 5 Located below the vehicle frame 100, the vehicle can be connected to the bogie.

Fig. 7 is a schematic diagram of the structure of the bolster in Fig. 4. In combination with Fig. 7, the bolster 5 is located below the frame 4 of the bogie, the middle part of the bolster 5 is provided with a connecting hole vertically, and the lower end of the center pin 61 is rotatable. Connected in the connecting hole to realize the connection between the center pin 61 and the bolster 5 .

The upper end of the center pin 61 can be movably matched with the pin sleeve 48 with a small gap, and is hung on the lower chord 43 of the frame 4, and the length of the center pin 61 can be reduced due to the limit of the lower end of the center pin 61 by the bolster 5 , in order to reduce the swing amplitude of the center pin 61, which in turn can reduce the swing amplitude of the frame, to reduce the opening size of the rail beam, to reduce the structural size of the pier column, and to reduce the weight of the pier column and the rail beam.

FIG. 8 is a schematic diagram of the internal structure of the bolster in FIG. 7 . With reference to FIGS. 7 and 8 , the bolster 5 includes an upper cover 51 , a lower cover 52 and a web, and the upper cover 51 and the lower cover 52 are vertically aligned. Oppositely arranged, the peripheral surface of the upper cover plate 51 and the peripheral surface of the lower cover plate 52 are connected by webs to form a box-shaped structure.

Referring to FIG. 7 , the longitudinal sides of the upper cover 51 and the lower cover 52 are narrowed in the middle to reduce the weight of the bolster 5 .

7 and 8, the web includes a first web 54 and a second web 53, the first web 54 is in the shape of a waist, the length direction of the waist is longitudinal, and there are two first webs 54, The two first webs 54 are oppositely disposed between the upper cover 51 and the lower cover 52 in the transverse direction, and the two first webs 54 are connected by a plurality of second webs 53 arranged at intervals. This setting method Lightweight is achieved while ensuring that the bolster 5 has sufficient connection strength.

7 and 8 , the second webs 53 are divided into two opposite groups in the longitudinal direction. The middle of each second web 53 is provided with a coaxial mounting hole, and a connecting pin 66 is installed in the mounting hole. The lower end of the center pin 61 is disposed between the two sets of second webs 53 , and the middle part of the connecting pin 66 rotatably passes through the lower end of the center pin 61 to realize the rotatable connection between the lower end of the center pin 61 and the bolster 5 .

4 , 7 and 8 , a pin sleeve 56 may be provided in the installation hole, and both ends of the connecting pin 66 are fixed through the pin sleeve 56 in the corresponding installation hole, which can reduce the number of installation holes by the center pin 61 The wear and tear of the bolster can be improved by replacing the pin sleeve 56 .

Both ends of the connecting pin 66 are provided with locking screws, and the locking screws are arranged 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.

FIG. 9 is a schematic diagram of the structure of the first web in FIG. 8. In combination with the drawings, each first web 54 is formed by welding two arc plates 541, and the two arc plates 541 are welded to form two splices The two seams 542 are arranged obliquely and symmetrically to avoid interference with the second transverse rib 59 hereinafter.

7, the longitudinal ends of the bolster 5 are respectively provided with two first elastic member seats 58, and FIG. 10 is a schematic diagram of the installation of the elastic member seats. Referring to FIG. 10, each first elastic member seat 58 includes a bottom plate 581 and The elastic support umbilicus 582 is fixedly arranged in the middle of the top surface of the bottom plate 581 .

8 and 10 , each first web 54 is provided with a first rib 511 , and the first rib 511 divides the first web 54 into two cavities in the transverse direction, and each cavity is provided with The second rib 59 and the third rib 510 have a cross structure, the tops of the second rib 59 and the third rib 510 have gaps, and the upper cover 51 is provided with and The avoidance holes corresponding to the gaps, the elastic support umbilicals 582 and the gaps are correspondingly arranged, the bottom plate 581 of the first elastic member seat 58 is fixedly arranged on the corresponding gaps, and the elastic support umbilicals 582 pass through the avoidance holes corresponding to the bottom plate 581 provided on the upper cover plate 51 hole, so as to realize the installation of the first elastic member seat 58 on the bolster 5 .

Both sides of the second rib plate 59 and the third rib plate 510 are inclined planes at the notch, and the elastic member umbilicus is in the shape of a truncated cone, so as to be used to avoid the load on the first elastic support seat 58 under heavy truck conditions. The rubber outer drum formed by the elastic member 64 can further prevent the rubber and metal parts from being damaged due to friction.

With reference to FIG. 8 , the side parts of the two first webs 54 away from each other are provided with shock absorber mounting seats 55 for installing shock absorbers, and both ends of the longitudinal side of the bolster 5 are provided with longitudinal stoppers. Block 57 to prevent the bolster from being damaged due to collision with the outside during swinging.

FIG. 11 is a schematic structural diagram of the central suspension device in FIG. 4 , and FIG. 12 is a schematic side view of FIG. 11 . Referring to FIGS. 4 , 11 and 12 , the central suspension device 6 includes a swing reducing device in addition to the center pin 61 . The vibration damper 62 , the vertical vibration damper 63 , the elastic member 64 , the lateral stopper 65 , the connecting pin 66 , the backing plate 67 , the longitudinal stopper 69 and the bolster 5 mentioned above.

Referring to FIG. 11 , the limit 68 provided on the upper end of the center pin 61 may be integrally formed with the center pin 61 or connected by welding.

The limiting cap 68 may be in the shape of a waist circle, and the length direction of the limiting cap 68 is transverse.

11 and 12 , two sway shock absorbers 62 are provided, the upper ends of the two sway shock absorbers 62 are respectively connected to the lateral ends of the limit cap, and the lower ends of the two sway shock absorbers 62 are connected to the frame. , the bolster 5 is arranged under the frame.

The two swing shock absorbers 62 are in a figure-eight shape, and the included angle between the central axis of the swing shock absorbers 62 and the top surface of the frame is preferably 60°.

11 and 12 , there are also two vertical dampers 63 , the vertical dampers 63 and the damper mounts 55 are arranged in one-to-one correspondence, and the lower ends of the vertical dampers 63 are connected to the corresponding dampers 63 . On the shock absorber mounting seat 55, the upper ends of the two vertical shock absorbers 63 are connected to the lateral ends of the vehicle frame.

The vibration damping performance of the vehicle can be improved by the arrangement of the sway shock absorber 62 and the vertical shock absorber 63 , wherein the central axis of the sway shock absorber 62 is inclined to provide both sway and vertical vibration damping Damping, if the vehicle is running at a low speed, the vertical shock absorber 63 can be eliminated.

The lower end of the center pin 61 passes through the frame, and cooperates with the connecting pin 66 so that the lower end of the center pin 61 is rotatably connected to the connecting hole of the bolster 5 .

11 and 12 , there may be a plurality of elastic members 64 , the plurality of elastic members 64 are arranged at intervals around the central axis of the center pin 61 , and two ends of the elastic members 64 are respectively connected between the bolster and the frame.

The lower end of the elastic piece 64 is assembled in the first elastic support umbilicus 582 on the first elastic support seat 58, while the upper end of the elastic piece 64 is connected to the bottom of the frame, which can not only buffer the alignment when the vehicle is running, but also enable the center pin. There is no direct connection with the frame, and through the arrangement of elastic parts, the center pin and the frame form a flexible connection, which avoids the impact of rigidity caused by the direct connection between the center pin and the frame in the prior art, and improves the frame. higher stress levels and improve the fatigue life of the frame.

In addition, the elastic parts and the bolster are arranged under the frame, so that the overall height of the vehicle will not be increased, so that the lateral swing rigidity of the vehicle is small. Moreover, the stress of the frame and the bolster can be both under pressure, and the fatigue performance of the welding seam and the safety of the suspension are good.

11 and 12 , the lateral stopper 65 and the longitudinal stopper 69 constitute a stopper assembly, the stopper assembly is installed on the frame, two lateral stoppers 65 are arranged opposite to each other, and the two lateral stoppers 65 are arranged on the center pin On the lateral sides of the center pin 61, there are two longitudinal stops 69 opposite to each other, and the two longitudinal stops 69 are provided on the longitudinal sides of the center pin 61 to limit the rotation angle of the center pin.

Two lateral stops 65 of the stop assembly are vertically arranged to improve the ability to limit the lateral displacement and swing of the vehicle frame.

Referring to FIG. 12 , the longitudinal sides of the lower end of the center pin 61 are provided with stop openings, each stop is provided with a backing plate 67 , the connecting pin 66 passes through the two backing plates 67 , and the backing plate 16 can prevent the second web and the center The friction between the pins 61 reduces the strength and service life of the center pin 61 .

Since the center pin 61 is suspended in the middle of the lower suspension beam 43 , that is, the center pin 61 is installed at the bottom of the frame 4 , compared with the technical solution in which the center pin 61 is installed at the top of the frame 4 in the prior art, the distance of the center pin 61 can be reduced. The length is shortened from the original 2m to less than 600mm, which can not only greatly reduce the manufacturing cost, but also greatly reduce the additional bending moment of the center pin when the vehicle is running, and improve safety.

In addition, the frame runs on the rail beam through the drive mechanism, and the bolster is located under the frame, and then by limiting the two ends of the center pin, the swing range of the bolster and the frame can be limited, and the opening size of the rail beam can be reduced to achieve Reduce the size of the pier column structure to achieve the purpose of reducing the weight of the pier column and track beam to save steel and reduce costs.

FIG. 13 is a schematic view of the structure of the vehicle frame of FIG. 1 , in conjunction with FIG. 13 , the vehicle frame 100 includes a base frame 10 , and the base frame 10 includes a main longitudinal beam 17 . , the main longitudinal beam is provided with a plurality of center pin holes 18 at intervals, the center pin holes 18 and the center pins 61 are arranged in a one-to-one correspondence, the lower end of the center pin 61 moves through the corresponding center pin hole 18, and the lower end of the center pin 18 is swayed together The bolster 5 is connected, the bolster 5 is located below the base frame, and a plurality of the above-mentioned elastic members 55 are arranged between the bolster 5 and the main longitudinal beam 17 .

There are two center pin holes 18 and two center pins 61 correspondingly, and four elastic members 55 can be selected from springs, and the four elastic members 5 are arranged at intervals around the central axis of the center pin hole 18 .

12 , the main longitudinal beam 17 has supporting box beams 19 corresponding to the central pin holes 18 , each supporting box beam 19 is provided with a central pin hole 18 in the middle, and a plurality of elastic members 55 are arranged on the bolster. 5 and the supporting box beam 19.

The center pin is responsible for the connection between the frame of the bogie and the bolster, the elastic member is responsible for the vertical support force between the bolster and the frame, connecting the bolster and the frame, and the elastic member can be a rubber spring to provide vertical reduction. Vibration function, its upper and lower end faces can be relatively twisted within a certain angle range, and when the bogie drives the bolster to turn, it can be twisted, and the frame will turn accordingly to adapt to the steering of the bogie, and can form dispersion to the frame. Supports to improve the stress level of the frame and increase the fatigue life of the frame.

As described above, four elastic members 64 may be provided, and the four elastic members 64 are arranged at intervals around the central axis of the central pin hole 18 .

Fig. 14 is a schematic structural diagram of the support box girder in Fig. 13 with the top plate removed, and Fig. 15 is a structural schematic diagram of the support box girder in Fig. 13 with the support plate removed. With reference to Figs. 12 to 14, the support box girder 19 includes a top plate 191, a support plate 192 and the connecting plate 193, the top plate 191 and the supporting plate 192 are arranged oppositely, 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-type structure, the top plate 191 and the supporting plate 192 are provided with a center pin for passing through. through the central pin hole 18, and the main longitudinal beam 17 is fixed through the connecting plate 193 to realize the assembly of the supporting box beam 19 on the main longitudinal beam 17, wherein the main longitudinal beam 17 divides the box structure into two cavities .

14-15, the support box beam 19 further includes a first reinforcing plate 194, a second reinforcing plate 195 and a third reinforcing plate 196, each cavity is provided with a first reinforcing plate 194, the first reinforcing plate 194 along the Horizontally arranged, the cavity where the first reinforcing plate 194 is located is divided into two chambers, each of which is provided with a second reinforcing plate 195 and a third reinforcing plate 196, the second reinforcing plate 195 and the third reinforcing plate 196 are arranged in the shape of The cross structure, the first reinforcing plate 194, the second reinforcing plate 195 and the third reinforcing plate 196 can strengthen the structure supporting the box girder.

The bottoms of the second reinforcing plate 195 and the third reinforcing plate 196 are provided with notches, the support plate 192 is provided with escape holes corresponding to the notches, and the upper end of each elastic member 64 is connected to one of the notches correspondingly through the second elastic member seat 20 to The installation of the elastic member 64 on the supporting box beam is realized.

The second elastic member seat 20 and the first elastic member seat 58 have the same structure, and both include a bottom plate and an elastic support umbilical, the elastic support umbilical is fixedly arranged in the middle of the bottom surface of the bottom plate, and the bottom plate of the second elastic member seat 20 is fixedly arranged on the corresponding On the notch, the elastic support umbilicus of the second elastic member seat passes through the avoidance hole provided by the support plate 192, and the upper end of the elastic member 64 is connected to the elastic support umbilicus.

Similarly, both sides of the second reinforcing plate 195 and the third reinforcing plate 196 are inclined planes at the notch, and the umbilicus of the elastic member is in the shape of a truncated cone, so as to be installed on the second elastic support base 20 under the condition of avoiding heavy trucks The rubber outer drum caused by the elastic member 64 can prevent the rubber and metal parts from being damaged due to friction.

Further, with reference to FIGS. 13-15 , the above-mentioned stopper assembly is arranged in the support box beam 19 of the vehicle frame to limit the longitudinal and lateral rotation angles of the vehicle frame.

13 to 15, the longitudinal sides of the bottom of the supporting box beam 19 are bent downward to form bending parts 21, and each bending part is provided with a rotation stopper 22 to enhance the rotation limit function of the basic frame , to limit the rotation angle of the frame, to prevent the frame and the bolster from directly sending the adverse effects of collision when the frame swings, and to improve the reliability of vehicle operation.

14 and 15 , the two lateral ends of the support box girder 19 are provided with connecting seats 28 , and the lower ends of the two swing shock absorbers 62 are respectively connected to the connecting seats 28 provided at the lateral ends of the support box girder 19 .

12, the base frame also includes a first beam 23, two first beams 23 are provided on both longitudinal sides of each supporting box beam 19, and the middle of the two first beams 23 are connected by the main longitudinal beam 17, which can improve the The load carrying capacity of the frame.

A groove is provided in the middle of each first beam 23 , and the main longitudinal beam 17 can be fixedly embedded in the grooves in the middle of the plurality of first beams 23 by welding.

12, the base frame also includes side longitudinal rods 24 and connecting rods 25. The ends of the first transverse beams 23 on the same side are connected by the side longitudinal rods 24, and the side longitudinal rods 24 and the main longitudinal beam 17 pass through a plurality of intervals The provided connecting rods 25 are connected to further improve the bearing capacity of the frame.

12, the base frame also includes a plurality of second beams 26, the inner ends of the plurality of second beams 26 are vertically connected to the side of the main longitudinal beam 17, and the outer ends of the plurality of second beams 26 are connected to the side longitudinal bars 24. to further improve the carrying capacity of the frame.

The electric traction device 300 can be arranged on the second beam 26, and the two ends of the first beam 23 can be provided with locks 27 for connecting train cars or containers with goods. The container transfer anti-fall device in the Chinese patent will not be repeated here.

To sum up, in the suspended rail transit system shown in the present disclosure, the components of the bogie are arranged in a vertically extending structure, and the upper end of the center pin is suspended in the middle of the lower chord of the frame of the bogie, and the center The lower end of the pin passes through the frame and is rotatably connected to the bolster, thereby reducing the length of the center pin and reducing the swing of the vehicle traveling, thereby improving the structural dimensions of the track beam and the pier column supporting the track beam to reduce the use of steel It can reduce the cost of line construction and has good practical value.

The above-mentioned embodiments are the preferred embodiments of the present invention, and are only used to facilitate the description of the present invention, and are not intended to limit the present invention in any form. Within the scope of the technical features of the present invention, equivalent embodiments with partial changes or modifications made by using the technical contents disclosed in the present invention, and without departing from the technical features of the present invention, still belong to the scope of the technical features of the present invention.

Claims

A central suspension device includes a center pin and a bolster, the upper end of the center pin is suspended on a frame of a bogie, the bolster is located below the frame, the lower end of the center pin and the bolster Swivel connection.
The central suspension device according to claim 1, wherein the upper end of the central pin is provided with a limiting cap.
The central suspension device according to claim 2, further comprising two sway dampers, the upper ends of the two sway dampers are respectively connected to the lateral ends of the limit cap, and the two sway dampers are respectively connected The lower end of the vibrator is connected to the frame, and the bolster is arranged under the frame.
The central suspension device according to claim 3, wherein the two sway dampers are in a figure-eight shape, and the included angle between the central axis of the sway dampers and the top surface of the frame is 60° °.
The central suspension device according to claim 3, wherein the lateral ends of the bolster are provided with shock absorber mounting seats;

The device further includes two vertical shock absorbers, the vertical shock absorbers and the shock absorber mounting seat are arranged in a one-to-one correspondence, and the lower ends of the vertical shock absorbers are connected to the corresponding shock absorbers. On the shock absorber mounting seat, the upper ends of the two vertical shock absorbers are connected to the lateral ends of the frame.
The central suspension device according to claim 5, wherein the middle part of the bolster is vertically provided with a connecting hole, the lower end of the center pin passes through the frame, and the lower end of the center pin is provided at the in the connecting hole;

The device further includes a connecting pin, the middle part of the connecting pin is movable through the lower end of the center pin in the longitudinal direction, the two ends of the connecting pin are movable through the bolster, and both ends of the connecting pin are provided with Has locking screws.
The central suspension device according to claim 6, further comprising a plurality of elastic members, the plurality of elastic members are arranged at intervals around the central axis of the center pin, and two ends of the elastic member are arranged at intervals. are respectively connected between the bolster and the frame.
The central suspension device according to claim 7, further comprising a stopper assembly mounted on the vehicle frame, the stopper assembly comprising a lateral stopper and a longitudinal stopper, and two lateral stoppers are oppositely arranged, and the two One of the transverse stops is arranged on both sides of the center pin in the transverse direction, and there are two longitudinal stops opposite to each other, and two of the longitudinal stops are arranged on both sides of the center pin in the longitudinal direction.
The central suspension device according to claim 8, wherein two stopper assemblies are vertically arranged.
The central suspension device according to claim 6, wherein two longitudinal sides of the lower end of the central pin are provided with openings, each opening is provided with a backing plate, and the connecting pin passes through the two backing plates .
A bogie, comprising:

Frame, the frame comprises an upper chord, a lower chord and a connecting beam, the upper chord and the lower chord are arranged relative to each other, and the upper chord and the lower chord are connected by a plurality of spaced described connecting beams;

The bolster and the central suspension device according to any one of claims 1 to 10, wherein the bolster is suspended in the middle of the lower string through the central suspension device.
The bogie according to claim 11, wherein there are two connecting beams, and the two connecting beams are oppositely arranged at both ends of the upper chord and the lower chord, and the middle part of the upper chord and the The middle parts of the lower chord beams are connected by two opposite central beams.
A suspended rail transit system, comprising a rail beam and a vehicle, the vehicle comprising a vehicle frame and the bogie of claim 11 , the vehicle frame and the rail beam are connected by a plurality of the bogies, Each of the bogies includes a frame, a bolster and a central suspension device, the frame includes an upper chord, a lower chord and a connecting beam, the upper chord and the lower chord are oppositely arranged, the upper chord and the lower chord The beams are connected by a plurality of the connecting beams arranged at intervals, the bolster is suspended in the middle of the lower chord through the central suspension device, the bolster is arranged under the frame, and Driven by the bogie, the frame can be driven to run under the rail beam.