CN201842103U - Trailer bogie with independent wheels of 100% low floor light rail vehicle - Google Patents

Abstract

A trailer bogie with independent wheels of 100% low floor light rail vehicle comprises a framework, an axle assembly, a primary spring, a secondary spring, secondary vertical shock absorbers, secondary transverse shock absorbers, double drawbar traction mechanisms and a hydraulic braking unit, wherein the framework is in a form of a suspension arm projecting outwards; two short shafts are respectively connected with an elastic wheel through a bearing unit support; each axle is composed of two short shafts; two wheels on the same side of the bogie are fixed on a motor driving shaft; a motor is connected with two gear boxes; four secondary vertical shock absorbers are arranged at four corners of the framework; the secondary transverse shock absorbers are arranged at two ends of the framework; and the parallel double draw bar traction mechanisms are arranged on the inner side of the framework. The trailer bogie is formed by the high-intensity welded framework and the independent wheel axles, is reasonable in structure through the primary spring and the secondary spring, adopts the secondary vertical and transverse shock absorbers preferably, uses internal-traction parallel double draw bar traction devices and the independent hydraulic braking unit, and accordingly meets demand for 100% low floor of trains truly.

Description

100%Low-floor light rail vehicle is independently taken turns trailer bogie

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 trailer bogie.

Background technology

The trailer bogie of 70% low floor vehicle is compared with 100% low floor trailer bogie, and the low floor district of its top car body is comparatively narrow, makes troubles to the passenger is current.In order to increase low floor district scope, the height of the high floor area of more large-area reduction of must taking measures.While 100% trailer bogie and 100% low-floor light rail vehicle are independently taken turns power truck and are complementary, make the car load bogie truck have interchangeability, realize modular design, can reduce maintenance cost greatly like this, the car body Undercarriage structure also can be realized unification simultaneously, and this also is that all trailer bogies institutes are irreplaceable at present.

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 trailer bogie, and making the full car of light rail car floor all is low floor, realizes the interchangeability and the modular design of car load bogie truck.

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 trailer bogie, comprise that framework, axle bridge form, one be that spring, secondary spring, two are vertical, lateral damper, duplex pull rod trailer coupling, 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) four two is that vertical damper is located on four jiaos of framework;

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

(6) adopt the hydraulic brake unit mode to brake;

(7) 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 the parallel double pull bar draw gear of traction in adopting, independently hydraulic brake unit is formed, 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 hydraulic brake unit constructional drawing;

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, axle bridge composition 2 assembles with the elastic wheel 9 with effect of vibration and noise reduction, 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. 5,501 is brake disc, and 502 are the hydraulic braking clamp.Realize the transmission of braking force by power hydraulic system, opening and closing by fluid control hydraulic braking clamp, control between clamp and brake disc and open or clamp, the hydraulic braking clamp clamps the back to brake disc and hinders wheel to motion by friction force, thereby realizes braking function.

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 trailer bogie, comprises that framework, axle bridge form, one be that spring, secondary spring, two are vertical, lateral damper, duplex pull rod trailer coupling, 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) four two is that vertical damper is located on four jiaos of framework;

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

(6) adopt the hydraulic brake unit mode to brake;

(7) 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 trailer bogie, 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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