Transversely-arranged motor-driven braking structure of suspension type monorail vehicle

Abstract

The utility model discloses a suspension type monorail vehicle transverse arrangement motor drive brake structure which comprises a framework and a traction brake system installed on the framework, and the traction brake system comprises an axial magnetic flux type traction motor, a reduction gearbox, a drive half shaft, a brake and wheels. The traction motor and the reduction gearbox are connected with each other through bolts and fixed to the rear axle, the traction motor and the reduction gearbox are located between the left walking wheel and the right walking wheel, a differential mechanism is arranged in the reduction gearbox, output torque is provided, and meanwhile differential speed of the left wheel and the right wheel is achieved. The rear axle and the framework are longitudinally connected through traction ball joints and transversely connected through rubber springs. The overall structural design is reasonable, the axial magnetic flux motor is adopted, the weight of the motor is reduced, space is saved, the motor is arranged in the middle area of the two walking wheels, weight distribution is more reasonable, the purpose of weight reduction is achieved, the number of parts is small, and installation is convenient and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of a suspended monorail vehicle driving structure. Background Art

[0002] Suspended monorail vehicle refers to a new type of rail transportation vehicle in which the vehicle body is suspended below the box-beam track beam and the carrying function is realized through the bogie device connected to the top of the vehicle body. During the operation of the vehicle, the entire bogie frame is located in the track beam. Its traction brake transmission system is crucial to the smooth operation of the vehicle, and it is responsible for the starting, running and braking of the vehicle. It is the successful guarantee of the stable operation of the vehicle.

[0003] A common structure at present is to use a dual-motor layout, with two motors placed at both ends of the frame, and traction is transmitted through couplings and gearboxes. The motors are arranged longitudinally and use radial flux motors. Brake discs are installed on the motor shafts, and braking force is transmitted through couplings. However, due to the heavy weight of the motors, the entire structure is light in the middle and heavy at both ends, which is prone to nodding, affecting the comfort of vehicle operation. The motors are arranged at an angle at both ends, resulting in large displacement and inconvenient installation. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a suspension monorail vehicle transversely arranged motor driven brake structure

[0005] The technical solution adopted by the utility model is a motor-driven brake structure of a suspended monorail vehicle arranged transversely, comprising a frame and a traction brake system installed on the frame, the traction brake system comprising an axial flux traction motor, a reduction gearbox, a driving half shaft, a brake and a wheel, the traction motor and the reduction gearbox are connected to each other by bolts and fixed on the rear axle, the traction motor and the reduction gearbox are located between the left and right running wheels, a differential is arranged in the reduction gearbox, which provides output torque while realizing the differential of the left and right wheels, the reduction gearbox is connected to the wheel through the driving half shaft, the rear axle and the frame are connected longitudinally by a traction ball joint, and are connected transversely by a rubber spring.

[0006] The wheel has a rim, and the brake is a drum brake installed on the inner side of the rim of the wheel.

[0007] The utility model has the following beneficial effects: the overall structure is reasonably designed, an axial flux motor is used to reduce the weight of the motor, and the motor is directly connected to the gear box, omitting the coupling structure. The motor is in the middle area of ​​the two running wheels, and the weight distribution is more reasonable. At the same time, a drum brake is installed to save design space, and the purpose of weight reduction is achieved as a whole. At the same time, the number of components is small, making the installation convenient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0009] Figure 2 This is the structural diagram of the traction brake system.

[0010] Markings in the figure are: 1-driving half shaft, 2-wheel, 3-drum brake, 4-reduction box, 5-traction motor, 6-rear axle, 7-rubber spring, 8-traction ball joint, 10-traction braking system, 20-frame. DETAILED DESCRIPTION

[0011] The utility model will be further described below in conjunction with the accompanying drawings.

[0012] The utility model provides a suspended monorail vehicle transversely arranged motor driven brake structure, which mainly includes a frame 20 and a traction brake system 20. The traction brake system 10 mainly includes an axial flux traction motor, a reduction box 4, a drum brake 3, a drive half shaft 1, a wheel 2 and other structures.

[0013] like Figure 1 , Figure 2 As shown, the traction motor 5 is directly connected to the reduction box 4, and the two are fixed by bolts and assembled into a whole. The motor adopts an axial flux motor with a small thickness, saving space and mass. The motor and the reduction box are located between the two running wheels, and the center of gravity of the overall structure is stable.

[0014] The reduction box 4 includes a differential, which provides output torque while also achieving a differential effect between the left and right wheels, making the vehicle smoother when cornering.

[0015] The reduction box 4 is connected to the wheel 2 via the driving half shaft 1 to achieve the transmission of traction power.

[0016] The drum brake 3 is installed on the inner side of the wheel rim, does not occupy the space outside the wheel, makes the structure more compact, and performs braking at the low speed end, which can also make the braking response faster.

[0017] The rear axle 2 is used as a support so that the reducer and traction motor 5 do not participate in the load-bearing. The rear axle 6 and the frame 1 are connected in the longitudinal direction by a traction ball joint 8 to transmit the traction force; in the vertical direction, they are connected by a rubber spring 7 to transmit the vertical force. Since the entire drive system and the frame have no displacement restrictions, the vertical rubber spring can be selected with a small stiffness product to improve the comfort of the vehicle.

[0018] The motor-driven brake structure of the suspended monorail vehicle of the present application adopts the horizontal arrangement of the motor and eliminates the coupling components, thereby increasing the transmission efficiency and saving weight. The structure is simple and easy to assemble, and meets the traction and braking functions of the suspended monorail vehicle, which can ensure the smooth operation and braking of the vehicle. The axial flux motor is adopted to reduce weight and save space. The overall design has a reasonable center of gravity distribution, and there will be no nodding problem with heavy end weight.

Claims

1. A motor-driven brake structure for a suspended monorail vehicle is arranged transversely, comprising a frame and a traction brake system mounted on the frame, characterized in that: The traction braking system includes an axial flux traction motor, a reduction gearbox, a drive half shaft, a brake and wheels. The traction motor and the reduction gearbox are connected to each other by bolts and fixed on the rear axle. The traction motor and the reduction gearbox are located between the left and right running wheels. A differential is provided in the reduction gearbox to provide output torque while achieving the differential between the left and right wheels. The reduction gearbox is connected to the wheels through the drive half shaft. The rear axle and the frame are connected longitudinally by a traction ball joint and laterally by a rubber spring.

2. The motor-driven brake structure for a suspended monorail vehicle arranged transversely according to claim 1, characterized in that: The wheel has a rim, and the brake is a drum brake installed on the inner side of the rim of the wheel.

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