Traction brake transmission structure of three-in-one traction motor of suspension type monorail vehicle

Abstract

The utility model discloses a traction brake transmission structure of a three-in-one traction motor of a suspension type monorail vehicle, which comprises a framework, the three-in-one traction motor and a transmission system, the three-in-one traction motor is arranged in the center of the framework and comprises an axial magnetic flux motor, a differential speed reducer and a traction control system, the two sides of the axial magnetic flux motor simultaneously output traction force, and the two sides of the differential speed reducer simultaneously output traction force. The two sets of transmission systems are installed at the two ends of the framework respectively and comprise axle bridges, driving half shafts and wheels, the cardan shafts and the axle bridges are in transmission through bevel gears, the cardan shafts are connected with the bevel gears of the axle bridges, driving force is transmitted to the driving half shafts, and the driving half shafts are connected with the wheels to achieve rolling of the wheels. And the hydraulic brake is arranged in a rim of the wheel. The braking device is simple in overall structural design, reasonable in weight distribution and high in braking efficiency. The purpose of reducing the weight is achieved on the whole, installation is convenient and reliable, and the comfort of the vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of traction brakes for suspended monorail vehicles, and in particular designs a traction brake transmission structure of a three-in-one traction motor. 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. It undertakes the functions of starting, running and braking the vehicle, and is the basis for the stable operation of the vehicle.

[0003] The common structure at present is that two traction motors are connected to the gearbox through a coupling, and the gearbox connects the two driving half shafts to realize the driving of traction force. The gearbox contains the function of a reducer to achieve the purpose of increasing torque. The braking device is installed at the motor end to realize the braking execution at the high-speed end. The traction control system is installed on the train, and the traction control system is connected to the motor through the wiring of the car body and the bogie to realize traction control. Due to the heavy weight of the motor and the fact that it is at both ends, this scheme results in the entire structure being light in the middle and heavy at both ends, which is prone to nodding and affects the comfort of vehicle operation. The motors are arranged at an angle at both ends, resulting in large displacement and inconvenient installation. The traction system is arranged separately on the car body, resulting in a large weight, which affects the overall vehicle weight. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a traction brake transmission structure of a three-in-one traction motor of a suspended monorail vehicle with more stable vehicle operation and braking.

[0005] The technical scheme adopted by the utility model is a traction brake transmission structure of a three-in-one traction motor of a suspended monorail vehicle, comprising a frame, a motor and a transmission system. The motor adopts a three-in-one traction motor, which is installed in the center of the frame. The three-in-one traction motor comprises an axial flux motor, a differential reducer, and a traction control system. The axial flux motor outputs traction force on both sides simultaneously and drives the transmission system through a universal shaft. The transmission system consists of two sets, which are respectively installed at both ends of the frame. The transmission system comprises an axle bridge, a driving half shaft and a wheel. The universal shaft and the axle bridge adopt bevel gear transmission. The universal shaft is connected with the bevel gear of the axle bridge to transmit the driving force to the driving half shaft. The driving half shaft and the wheel are connected to realize the rolling of the wheel. The hydraulic brake is installed in the wheel rim.

[0006] The axle bridge and the frame are connected via a traction ball joint.

[0007] The beneficial effect of the utility model is that the overall structure is reasonably designed and is composed of a three-in-one traction motor. The traction motor includes an axial flux motor, a speed reducer with a differential function, and a traction control system, and the traction motor has a differential output on the left and right sides. Due to the use of an axial flux motor, the structure and weight of the three-in-one traction motor are both smaller than those of a traditional radial flux motor. At the same time, the motor is connected to the integral axle bridge through a constant velocity universal shaft. The universal shaft is used to allow the axle bridge and the motor to have a large displacement space, so that the axle bridge can be equipped with a low-rigidity spring to improve comfort. The axle bridge is equipped with a bevel gear structure without a speed change function to achieve the transmission of the motor torque to the driving half-axles on both sides of the axle bridge. The driving half-axles are connected to the wheels. The wheels are equipped with hydraulic brakes to provide vehicle braking with higher braking efficiency. The traction motor is in the middle area of ​​the two running wheels, and the weight distribution is more reasonable. At the same time, it is equipped with a low-speed end brake to save design space. The purpose of weight reduction is achieved as a whole, making installation convenient and reliable, and improving vehicle comfort. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0009] Figure 2 Schematic diagram of the transmission system structure.

[0010] Markings in the figure are: 11-frame, 12-transmission system, 13-cardan shaft, 14-three-in-one traction motor, 21-driving half shaft, 22-hydraulic brake, 23-axle bridge, 24-wheel rim, 25-pneumatic tire. DETAILED DESCRIPTION

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

[0012] The traction brake transmission structure of the three-in-one traction motor of the suspended monorail vehicle of the utility model mainly includes a frame 11, a three-in-one traction motor 14, a constant velocity universal joint shaft 13 and a transmission system 12. The transmission system 12 includes an axle bridge 23, a driving half shaft 21, a hydraulic brake 22, wheels and other structures.

[0013] The traction brake transmission structure features of the three-in-one traction motor of the present application are as follows: Figure 1 As shown,

[0014] The three-in-one traction motor 14 is installed in the middle of the frame 11 through a base. The three-in-one traction motor includes an axial flux motor, a reducer with a differential, and a traction control system. Due to the use of an axial flux motor, the structure and weight of the three-in-one traction motor are smaller than those of a traditional radial flux motor. The two ends of the three-in-one traction motor can output traction at the same time, and the differential between the front and rear wheels is achieved through the reducer and the differential. The traction control system is integrated with the three-in-one traction motor, and a separate traction control box is eliminated, making the overall structure smaller and lighter. At the same time, the three-in-one traction motor is arranged in the middle of the frame, located in the middle area of ​​the two running wheels, with the center of gravity in the middle position, which solves the problem of heavy weight and nodding at the ends, and achieves the purpose of weight reduction as a whole, making installation convenient and reliable, and improving vehicle comfort.

[0015] The three-in-one traction motor 14 is connected to the transmission system 12 through the universal shaft 13, and the driving force is transmitted to the transmission system, and the transmission is stable and reliable. The transmission system is composed of two sets, which are installed at both ends of the frame, respectively located on the left and right sides of the three-in-one traction motor 14. The transmission system 12 includes a driving half shaft 21, a hydraulic brake 22, an axle bridge 23, a rim 24, and a pneumatic tire 25. The axial flux motor is connected to the axle bridge 23 through the universal shaft 13. The universal shaft 13 is used to connect the axle bridge 23 and the motor, which has a large displacement space, so that the axle bridge can be equipped with a low-rigidity spring to improve comfort.

[0016] The axle bridge 23 is equipped with a bevel gear structure without a speed change function, and has the ability to carry and transmit traction and braking force, realizing the function of transmitting the motor torque to the driving half shafts on both sides of the axle bridge. The universal shaft 13 is connected to the bevel gear of the axle bridge 23 to transmit the traction and braking force to the driving half shafts 21 on both sides in the lateral direction; the driving half shaft 21 is connected to the wheel, and the wheel includes a rim 24 and an inflatable tire 25 to realize the rolling of the wheel.

[0017] The hydraulic brake 22 is installed on the inner side of the wheel rim 24 and does not occupy the space outside the wheel, making the structure more compact and saving design space. At the same time, the braking response is faster by adopting the braking method at the low speed end.

[0018] The axle bridge 23 is connected to the frame 11 of the component 1 through a traction ball joint to transmit traction braking force.

[0019] The overall structure of the present application adopts a three-in-one traction motor, with a modular design and easy assembly. It meets the traction braking transmission function of the suspended monorail vehicle, and can ensure the smooth operation and braking of the vehicle; the three-in-one traction motor structure is adopted to reduce weight and save space; the universal shaft is used to transmit the traction braking force, which has a strong displacement ability and meets the bogie operation; the intermediate motor solution is adopted, and the overall design has a good center of gravity distribution, and there will be no nodding problem with heavy end weight.

Claims

1. A traction brake transmission structure of a three-in-one traction motor for a suspended monorail vehicle, comprising a frame, a motor and a transmission system, characterized in that: The motor adopts a three-in-one traction motor, which is installed in the center of the frame. The three-in-one traction motor includes an axial flux motor, a differential reducer, and a traction control system. The axial flux motor outputs traction on both sides simultaneously and drives the transmission system through a universal shaft. The transmission system consists of two sets, which are installed at both ends of the frame respectively. The transmission system includes an axle bridge, a drive half shaft and wheels. The universal shaft and the axle bridge adopt bevel gear transmission. The universal shaft is connected to the bevel gear of the axle bridge to transmit the driving force to the drive half shaft. The drive half shaft and the wheel are connected to realize wheel rolling. The hydraulic brake is installed in the wheel rim.

2. The traction brake transmission structure of the three-in-one traction motor of the suspended monorail vehicle according to claim 1, characterized in that: The axle bridge and the frame are connected via a traction ball joint.

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