CN201189870Y

CN201189870Y - Power bogie

Info

Publication number: CN201189870Y
Application number: CNU2008200722760U
Authority: CN
Inventors: 牛得田; 刘志泰; 梁树林; 李秋泽
Original assignee: Changchun Railway Vehicles Co Ltd; Transport Bureau of the Ministry of Railways
Current assignee: CRRC Changchun Railway Vehicles Co Ltd; China State Railway Group Co Ltd
Priority date: 2008-08-15
Filing date: 2008-08-15
Publication date: 2009-02-04
Anticipated expiration: 2018-08-15

Abstract

A power bogie comprises a wheel pair, a spiral spring group, an axle box, a framework, an air spring, an anti-side-rolling torsion bar, an anti-snaking shock absorber, a central traction part, a foundation brake part and a swing bolster, wherein the framework is of an H-shaped welding structure, a side beam is concave, a transverse side beam connecting seat of the side beam adopts a variable cross section design of a forged piece, one end of the transverse side beam connecting seat is in butt joint assembly welding with a transverse beam steel pipe, and the other end of the transverse side beam connecting seat is in assembly welding with an upper cover; the outer ends of the two cross beam steel pipes are welded with brake hanging seats, and the transverse shock absorber seats are welded on the side beams of the framework; a low-rigidity rubber spring is arranged below the spiral spring group, the two air springs are large curved bags, and the secondary suspension has lower rigidity when the air springs are airless; the jib axlebox is connected to the frame by an axlebox rubber node. The utility model discloses have sufficient fatigue strength, sufficient bearing capacity, good vertical travelling comfort and horizontal travelling comfort and stability, reduce the track effort simultaneously.

Description

Power truck

Technical field

The utility model relates to a kind of motor train unit power truck, especially relates to a kind of motor train unit power truck with the above speed operation of 200km/h.

Background technology

Bogie truck is the critical component of railway vehicle, is starting before the motor train unit, and the overall trip speed of passenger train mainly adopts the traction operation way of power concentration below 160km/h, and the day bus bogie truck is drive not, and running velocity is low.In addition, the strength at repeated alternation of existing truck frame is low, and safe reliability is lower during high-speed cruising; One is low with secondary suspension device flexibility, and cushioning ability is poor; Wheel is to location inaccuracy, less stable during high-speed cruising.In view of this, present bogie truck can not satisfy the requirement of EMU safety and stability operation, makes the high-speed rail transportation system lose the operation economy and the reliability that should have.

The utility model content

Technical problem to be solved in the utility model provides a kind of framework and has enough strength at repeated alternations and load-carrying capacity, one is good with secondary suspension device flexibility, cushioning ability is strong, and wheel is to locating accurate EMU power truck, to overcome the defective that background technology exists.

For solving the problems of the technologies described above, the utility model provides a kind of motor train unit power truck, comprise that two wheels that have brake disc are right, four coil spring groups, four pivoted arm axle boxes, a welded framework, two air bellows, one group of anti-side rolling torsion rod, two groups of anti-shock absorbers that crawl, central authorities' traction, one cover dish-type foundation brake, a bolster, each is taken turns the pivoted arm axle box is installed at two ends, pivoted arm axle box top is equipped with the coil spring group, a framework is installed on the coil spring group, the framework top is equipped with two air bellows, air bellow is controlled by levelling valve, central authorities' traction is installed between two air bellows, what play draw is two pull bars, pull bar is the Z font, two are equipped with a bolster above the air bellow, an anti-side rolling torsion rod and two groups of anti-shock absorbers that crawl are installed between bolster and the framework, and every side of framework is equipped with two anti-shock absorbers that crawl, framework and the wheel between the dish-type foundation brake is installed, it is characterized in that: framework is a H type welded structure, and curb girder is a concave shape, and the horizontal curb girder Connection Block of curb girder adopts the design of forging variable section, one end docks assembly welding with the crossbeam steel pipe, and the other end becomes box type construction with the curb girder upper cover plate with the lower cover assembly welding; The outer end of two crossbeam steel pipes is welded with the braking flap seat, and the lateral damper seat is welded on the truck side sill; Coil spring group below is equipped with low rigidity rubber spring, and two air bellows are the Daqu capsule, and secondary suspension does not have relatively low stiffness when air bellow has gas; The pivoted arm axle box is connected with framework by the axle box rubber nodal point.

The reasonable Arrangement of each module of the utility model and integrated makes this bogie truck have enough strength at repeated alternations, enough load-carrying capacitys; One of flexible, balance is that vertical suspension gear and two is the LF device, makes bogie truck have good vertical traveling comfort on level tangent track and curve; Optimize one be, two be that lateral stiffness and two is that horizontal damping makes bogie truck have good horizontal traveling comfort on curve; One of optimization is that registration device adds that the anti-shock absorber that crawls makes bogie truck have good stable when high-speed cruising, reduces rail effect power simultaneously.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the birds-eye view of Fig. 1;

Fig. 3 is a framework structure scheme drawing in the utility model.

The specific embodiment

With reference to Fig. 1, Fig. 2, the utility model is installed in each with pivoted arm axle box 3 and takes turns two ends to 2, and axle box is connected with framework 1, makes wheel to accurate at location dimension and locating stiffnesses vertical, vertical and horizontal with respect to framework, has guaranteed the stability of high-speed cruising; Four coil spring groups 4 are installed on pivoted arm axle box 3, and can reduce by one is the rigidity of vertical suspension, and has cushioning effect; A framework 1 is installed on coil spring group 4, two air bellows 5 are installed on framework 1, air bellow 5 makes that by levelling valve control secondary suspension has relatively low stiffness when air bellow does not have gas; A bolster 8 is installed on two air bellows 5, an anti-side rolling torsion rod 7 is installed between bolster 8 and framework 1, one group of anti-shock absorber 6 that crawls is installed in framework 1 both sides, dish-type foundation brake 9 is installed at framework 1 with between taking turns 2.

With reference to Fig. 3, framework 10 is the H type, be welded by two curb girders 13 and two crossbeam steel pipes 15, connect by Connection Block 11 between the horizontal curb girder, Connection Block 11 1 ends dock assembly welding with crossbeam steel pipe 15, the other end becomes box type construction with curb girder upper cover plate 12 with lower cover 14 assembly weldings, and braking flap seat 16 is arranged on the braking crossbeam, and lateral damper seat 17 is on truck side sill.

Claims

1, a kind of power truck, comprise that two wheels that have brake disc are right, four coil spring groups, four pivoted arm axle boxes, a welded framework, two air bellows, one group of anti-side rolling torsion rod, two groups of anti-shock absorbers that crawl, central authorities' traction, one cover dish-type foundation brake, a bolster, each is taken turns the pivoted arm axle box is installed at two ends, pivoted arm axle box top is equipped with the coil spring group, a framework is installed on the coil spring group, and the framework top is equipped with two air bellows, and air bellow is controlled by levelling valve, central authorities' traction is installed between two air bellows, what play draw is two pull bars, and pull bar is the Z font, and two are equipped with a bolster above the air bellow, an anti-side rolling torsion rod and two groups of anti-shock absorbers that crawl are installed between bolster and the framework, every side of framework is equipped with two anti-shock absorbers that crawl, framework and wheel between the dish-type foundation brake is installed, it is characterized in that: framework is a H type welded structure, curb girder is a concave shape, the horizontal curb girder Connection Block of curb girder adopts the design of forging variable section, and an end docks assembly welding with the crossbeam steel pipe, and the other end becomes box type construction with the curb girder upper cover plate with the lower cover assembly welding; The outer end of two crossbeam steel pipes is welded with the braking flap seat, and the lateral damper seat is welded on the truck side sill; Coil spring group below is equipped with low rigidity rubber spring, and two air bellows are the Daqu capsule, and secondary suspension does not have relatively low stiffness when air bellow has gas; The pivoted arm axle box is connected with framework by the axle box rubber nodal point.