CN201842102U - Power bogie with independent wheels for 100% low-floor light rail vehicle - Google Patents

Abstract

A power bogie with independent wheels for a 100% low-floor light rail vehicle comprises a structural frame, an axle beam component, a primary spring, a secondary spring, secondary vertical vibration dampers, secondary horizontal vibration dampers, a double pull rod traction mechanism, a flexibly suspended motor longitudinal driving mechanism and a hydraulic braking unit; the side beam of the structural frame is a cantilever protruding outwards; two short shafts are supported by bearing units and are connected with two resilient wheels respectively; an axle shaft is constituted by two short shafts; two wheels on the same side of a bogie are fixed on a motor-driven shaft; a motor is connected with two gearboxes; a braking system is connected with a traction motor as a whole; the four secondary vertical vibration dampers are arranged at the four corners of the structural frame; the secondary horizontal vibration dampers are arranged at two ends of the structural frame; and the parallel double pull rod traction mechanism is arranged on the inner side of the structural frame. According to the utility model, the power bogie consists of the high-strength welding structural frame, an independent wheel shaft bridge, the structurally reasonable primary and secondary springs, and the optimal secondary vertical and horizontal vibration dampers, and the internal-traction parallel double pull rod traction mechanism, the flexibly suspended motor longitudinal driving mechanism, and the motor integration hydraulic braking unit are adopted, so that the requirement of 100% low-floor of the vehicle body is realized truly.

Description

100 %Low-floor light rail vehicle is independently taken turns power truck

Technical field

The utility model relates to bogie truck, especially relates to a kind of 100% low-floor light rail vehicle and independently takes turns power truck.

Background technology

The power truck at 70% low floor vehicle two ends adopts traditional form, and traction electric machine is placed in the framework inboard, and crossbeam is connected the centre at the thicker position, middle part of curb girder, therefore, power truck top car body is high floor area, and like this, the two-stage step is made troubles to the passenger is current.In order to make full car floor level all is the low floor district, must take measures to reduce the height of high floor area.Yet because the restriction of traditional concept, people are difficult to change light rail vehicle motor and gear case hanging position, so never realize 100% lowland wooden handcart.

The utility model content

Technical problem to be solved in the utility model provides a kind of 100% low-floor light rail vehicle and independently takes turns power truck, and making the full car of light rail car floor is low floor all, satisfies the convenience that the passenger passes through.

For solving the problems of the technologies described above, the utility model provides a kind of 100% low-floor light rail vehicle independently to take turns power truck, comprise that framework, axle bridge form, one be that spring, secondary spring, two are vertical, lateral damper, duplex pull rod trailer coupling, the outstanding vertical driver train of motor of elastic shelf, hydraulic brake unit, it is characterized in that:

(1) framework: truck side sill is the cantilevered of outwards protruding, the bracketed part of its protrusion is as motor hanger, the secondary spring mount pad is located on the motor hanger, truck transom adopts the quadra structure to be connected the bottom at two truck side sill middle parts, truck end sill adopts U type structure, its bottom and the truck transom plane that coexists;

(2) axle bridge mechanism: two minor axises support by bearing unit and connect an elastic wheel separately respectively, bearing unit is fixed on the minor axis by bearing gland, between cambered axle and bearing unit, be provided with dust ring on the minor axis, bonnet is installed on the elastic wheel also and between the dust ring forms labyrinth packing, be provided with the lamination seal ring between elastic wheel and the bearing gland;

(3) axle construction: axletree is made up of two minor axises, the tapered roller bearing group of bearing arrangement for varying in size together, and one of them bearing is assemblied in the wheel endoporus;

(4) two of bogie truck the same side wheels are fixed on the motor driving shaft, and motor connects with two gears case;

(5) brake system and traction electric machine become one, motor side half-coupling and motor output shaft interference fit, and brake disc and motor side half-coupling Bolt Connection, the motor side half-coupling is by bolt and the assembling of gear box side half-coupling;

(6) four two is that vertical damper is located on four jiaos of framework;

(7) two is the end positions that horizontal shock attenuation unit is located at framework;

(8) parallel double pull bar traction system is located at the inboard of framework.

In order to make pull bar have the effect that reduces the longitudinal direction of car impulsion, the two ends perforate of drawing pull bar also is pressed into the elastic caoutchouc node.

In order to improve the dynamic performance of vehicle, the secondary suspension device adds rubber pad by steel spring and forms.

The utility model adopts high-fatigue strength reliability welded frame and independent axle bridge to form, rational in infrastructure one is spring and secondary spring, two of the best is vertical and lateral damper, and adopt the parallel double pull bar draw gear of interior traction and the outstanding motor of elastic shelf vertically to drive, adopt and the integrated hydraulic brake unit of traction electric machine, make this novel steering frame from truly having realized the reduction of car body floor face, realized car body 100% low floor requirement.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the upward view of Fig. 1;

Fig. 3 is the structural representation of framework;

Fig. 4 is the structural representation of a bridge;

Fig. 5 is the integrated structural representation of traction electric machine and hydraulic brake system;

Fig. 6 is the structural representation of drawing pull bar.

The specific embodiment

With reference to Fig. 1, Fig. 2, the utility model bogie truck is made up of following each several part: form 1 by the framework that curb girder, crossbeam and end carriage assembly welding form; The axle bridge forms 2; Minor axis 3; Pass through the actuating device 4 of plunging joint transmission by motor and gear case; With the integrated hydraulic brake unit 5 of traction electric machine; The secondary suspension system forms 6; Two is vertical shock attenuation unit 7; Two is horizontal shock attenuation unit 8; Elastic wheel 9 with effect of vibration and noise reduction; Parallel double pull bar traction system 10; Advanced electromagnetic rail brake system 11.It is the basis of other each parts of assembling that framework is formed, and is to realize one of critical component that the car body floor face reduces; Minor axis 3 is assemblied in a bridge and forms on 2, it is one of vital part that major axis is changed into minor axis, the axle bridge form 2 with have effect of vibration and noise reduction elastic wheel 9 assemble, the common wheel of forming is to structure, elastic wheel 9 with effect of vibration and noise reduction aims at the low novel wheel of plate vehicle design-calculated, wheel itself also plays certain damping of vibrations, connection mode is different with conventional bogie, it with macro-axis bearing in the bearing set of small one and large one formation of axle head among the wheel endoporus, little bearing places on the minor axis of the outside, during the wheel operation, wheel drives the outside race rotation and bearing inner ring does not change, this connecting mode and conventional bogie differ widely, and mode of motion is fully opposite with conventional bogie, has but realized common purpose simultaneously.Actuating device 4 is the constituent elements of motor and gear case, hangs the same side that is installed in framework composition 1, and former and later two of driving bogie truck are taken turns, and this was with structure was different fully in the past; Hydraulic brake unit 5 is integrated among the actuating device 4; It is important composition parts of realizing 100% lowland wooden handcart that the secondary suspension system forms 6, and two is that vertical shock attenuation unit 7, two is that horizontal shock attenuation unit 8 one ends link to each other with truck frame composition 1, and the other end links to each other with car body, plays effectiveness in vibration suppression; The duplex pull rod trailer coupling of parallel double pull bar traction system 10 has realized that the equal horizontal stroke of bogie truck working direction is stressed, and the suitable and unlikely bogie truck of two side draws is subjected to inclined to one side power and derails; Electromagnetic rail brake system 11 is assembled together to composition with wheel, for providing the failure-free braking force under the wooden handcart emergency braking situation of lowland.

With reference to Fig. 3, framework mainly comprises truck side sill 101, motor hanger 102, bolted connection seat 103, secondary spring mount pad 104, truck transom 105, horizontal curb girder Connection Block 106, truck end sill 107, truck side sill is the cantilevered of outwards protruding, the bracketed part of its protrusion is as motor hanger, the secondary spring mount pad is located on the motor hanger, truck transom adopts the quadra structure to be connected the bottom at two truck side sill middle parts, truck end sill adopts U type structure, its bottom and the truck transom plane that coexists.

With reference to Fig. 4, the axle Biodge device comprises cambered axle 210, minor axis 209, pass through bearing unit 202 support and connection elastic wheels 201 on the minor axis, bearing unit is fixed on the minor axis by bearing gland 203, between cambered axle and bearing unit, be provided with dust ring 205 on the minor axis, be equipped with on the elastic wheel bonnet 204 and and dust ring 205 between form labyrinth packing, be provided with lamination seal ring 206 between elastic wheel and the bearing gland, axle drive shaft 207 is connected with elastic wheel 201, be used for transmission of drive force, the 208th, earth system.

With reference to Fig. 5, brake system and traction electric machine become one, motor side half-coupling 502 is assembled together by the interference mode with motor output shaft 503, brake disc 501 and motor side half-coupling 502 are assembled together by Bolt Connection, the motor side half-coupling is assembled together by bolt and gear box side half-coupling 504 more then, glancing impact makes traction electric machine and brake system organically combine by apply the rotation that Clamping force stops the motor plunging joint to brake disc like this.

With reference to Fig. 6, drawing pull bar is press-fited by the rubber nodal point 1002 at a connecting rod 1001 and two ends and constitutes, and compares with motor-car drawing pull bar structure in the past, and length dimension reduces, two nodes change parastate into by original plumbness, easily connect with car body drawing pull bar seat.

Claims (2)

1. a low-floor light rail vehicle is independently taken turns power truck, comprise that framework, axle bridge form, one be that spring, secondary spring, two are vertical, lateral damper, duplex pull rod trailer coupling, the outstanding vertical driver train of motor of elastic shelf, hydraulic brake unit, it is characterized in that:

(1) framework: truck side sill is the cantilevered of outwards protruding, the bracketed part of its protrusion is as motor hanger, the secondary spring mount pad is located on the motor hanger, truck transom adopts the quadra structure to be connected the bottom at two truck side sill middle parts, truck end sill adopts U type structure, its bottom and the truck transom plane that coexists;

(2) axle bridge mechanism: two minor axises support by bearing unit and connect an elastic wheel separately respectively, bearing unit is fixed on the minor axis by bearing gland, between cambered axle and bearing unit, be provided with dust ring on the minor axis, bonnet is installed on the elastic wheel also and between the dust ring forms labyrinth packing, be provided with the lamination seal ring between elastic wheel and the bearing gland;

(3) axle construction: axletree is made up of two minor axises, the tapered roller bearing group of bearing arrangement for varying in size together, and one of them bearing is assemblied in the wheel endoporus;

(4) two of bogie truck the same side wheels are fixed on the motor driving shaft, and motor connects with two gears case;

(5) brake system and traction electric machine become one, motor side half-coupling and motor output shaft interference fit, and brake disc and motor side half-coupling Bolt Connection, the motor side half-coupling is by bolt and the assembling of gear box side half-coupling;

(6) four two is that vertical damper is located on four jiaos of framework;

(7) two is the end positions that horizontal shock attenuation unit is located at framework;

(8) parallel double pull bar traction system is located at the inboard of framework.

2. 100% low-floor light rail vehicle according to claim 1 is independently taken turns power truck, it is characterized in that: the two ends perforate of drawing pull bar also is pressed into the elastic caoutchouc node.

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