Suspension type monorail vehicle hub driving and braking structure

Abstract

The utility model discloses a hub driving and braking structure of a suspension type monorail vehicle. The hub driving and braking structure mainly comprises a framework, a hub motor, a hydraulic brake, an axle, a traction rod, a walking wheel and the like. A hub motor driving mode is adopted, a motor is concentrated in a hub, a planet gear speed reducer is adopted, and driving force directly acts on the hub. And meanwhile, the motor rotor is connected with the brake disc, and a hydraulic brake clamp is adopted to provide a brake function. The traction braking system on the left side and the traction braking system on the right side are structurally connected through a shaft bridge, the shaft bridge plays a role in bearing, the shaft bridge and the framework are supported through vertical rubber, and the vertical buffering and vibration reduction effects are provided. The axle and the framework are longitudinally connected through a traction pull rod, and longitudinal force is transmitted. Due to the fact that parts such as couplings are omitted, the purpose of reducing the weight is achieved on the whole, installation is convenient and reliable, vehicle comfort is improved, meanwhile, the axle distance can be reduced, and curve passing capacity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of suspended monorail vehicle driving. 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 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 achieve the drive of traction. 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 achieve 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 the vehicle. 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 type monorail vehicle hub drive brake structure which can effectively reduce weight, save space and ensure running and braking stability.

[0005] The technical solution adopted by the utility model is a wheel hub driven brake structure for a suspended monorail vehicle, comprising a frame and a traction control system, wherein two sets of traction control systems are respectively mounted at two ends of the frame through an axle bridge, the traction control system comprises two sets of wheel hoop motors, brake discs, running wheels and a brake caliper, the motor is a wheel hub motor, the motor housing is connected and fixed to the axle bridge, one end of the motor rotor shaft is connected to the wheel hoop of the running wheel, shaft holes are arranged on both sides of the axle bridge, the motor rotor shaft passes through the shaft holes inwardly, and brake discs are arranged at the ends, the two brake discs are adapted to the central brake caliper to provide friction, and the brake caliper is fixed to the axle bridge.

[0006] A buffer rubber pile is arranged vertically above the axle bridge, the buffer rubber pile is connected to the frame, a traction rod is arranged in the longitudinal direction of the axle bridge, and the traction rod is connected to the frame longitudinally to transmit the traction braking force.

[0007] The beneficial effects of the utility model are that the traction and braking functions of the suspended monorail vehicle are met, and the smooth operation and braking of the vehicle can be ensured; the integrated structure of the hub motor and the hydraulic brake is adopted to reduce weight and save space at the same time; the axle bridge design is adopted to better transmit vertical and longitudinal forces; the transmission components such as the coupling are omitted, the wheelbase can be reduced, and small radius curves can be better passed. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0010] Figure 3 This is a schematic diagram of the installation structure of the running wheel and hub motor.

[0011] Markings in the figure are: 10-frame, 20-traction braking system, 1-axle bridge, 2-traveling wheel, 3-buffer rubber pile, 4-traction rod, 21-hydraulic brake caliper, 22-brake disc, 23-hub motor, 24-traveling wheel, 26-axle hole. DETAILED DESCRIPTION

[0012] The utility model will be further described below in conjunction with the accompanying drawings.

[0013] like Figure 1 Figure 2 As shown, the wheel hub driven brake structure of the suspended monorail vehicle of the utility model includes a frame and a traction control system. Two sets of traction control systems are respectively installed at the front and rear ends of the frame through axle bridges. The traction control system includes two sets of wheel hoop motors, brake discs and running wheels. The two sets of devices are arranged in pairs on the left and right, connected through axle bridges, and a common brake clamp is in the middle. Axle holes are arranged on both sides of the axle bridge to meet the connection between the brake disc and the motor rotor shaft and the rotation space of the rotor. The symmetrical structure of the traction control system makes the overall structure simple, easy to install and interchangeable. The two sets of traction braking systems and the frame form a two-axle bogie type. The overall structure adopts a modular design and is easy to assemble. The left and right running wheels are controlled separately, which is more conducive to passing through small curves.

[0014] The utility model adopts a wheel hub motor drive mode, the motor housing is connected and fixed to the shaft bridge 1, and plays a bearing role. The wheel hub motor 23 is arranged in the hub of the running wheel 24, and the wheel hub motor adopts a planetary gear reducer, and one end of the motor rotor shaft is connected to the hoop of the running wheel to transmit the driving power of the motor to the running wheel 24. The overall structural design is simple and reasonable.

[0015] Axle holes are set on both sides of the axle bridge, and the inner ends of the two motor rotor shafts pass through the axle holes inwardly, and brake discs 22 are provided at the ends. The two brake discs 22 are adapted to the central brake caliper 21. The brake caliper adopts a hydraulic brake caliper. When braking, the friction force between the brake caliper 21 and the brake disc 22 provides a braking function, and the braking force is transmitted to the running wheel.

[0016] The brake caliper is fixed on the axle bridge to transmit the braking force. At the same time, it does not occupy the space outside the wheel, making the structure more compact. At the same time, braking at the low speed end makes the braking response faster.

[0017] The axle bridge and the frame are supported by vertical rubber. A buffer rubber pile 3 is arranged vertically above the axle bridge 1. The buffer rubber pile 3 is connected to the frame 10 to play a role of vertical buffering and vibration reduction. The axle bridge has a traction rod 24 in the longitudinal direction. The traction rod 24 is connected to the frame 10 in the longitudinal direction to transmit the traction braking force. The overall solution of the utility model saves design space and reduces the number of components such as couplings. The purpose of weight reduction is achieved as a whole, making the installation convenient and reliable, improving the comfort of the vehicle, and at the same time reducing the wheelbase and improving the curve passing ability.

Claims

1. A wheel hub driven brake structure for a suspended monorail vehicle, comprising a frame and a traction control system, characterized in that: Two sets of traction control systems are installed at both ends of the frame through the axle bridge respectively. The traction control system includes two sets of wheel hoop motors, brake discs, running wheels and a brake caliper. The motor is a hub motor. The motor shell is connected and fixed to the axle bridge. One end of the motor rotor shaft is connected to the wheel hoop of the running wheel. Axle holes are set on both sides of the axle bridge. The motor rotor shaft passes through the axle holes inwardly and a brake disc is set at the end. The two brake discs are adapted to the central brake caliper to provide friction. The brake caliper is fixed on the axle bridge.

2. The wheel hub drive brake structure for a suspended monorail vehicle according to claim 1, characterized in that: A buffer rubber pile is arranged vertically above the axle bridge, and the buffer rubber pile is connected to the frame. A traction rod is arranged in the longitudinal direction of the axle bridge, and the traction rod is connected to the frame longitudinally to transmit traction braking force.

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