CN201192970Y - Low-rim arc tread wheel for power bogie of motor train unit - Google Patents

Abstract

The utility model provides a EMUs power bogie is with low rim arc tread wheel, includes the wheel body, wheel tread and wheel rim, and the wheel tread is the arc, and wheel rim thickness B is 32.5mm, and wheel rim height H is higher than wheel tread base line 29mm, and wheel arc tread and wheel rim root have a transition curved surface that transition centre of a circle coordinate RB is 13. The utility model discloses use on CRH5 type high-speed EMUs CA250 bogie wheel pair, compare with existing pattern tread wheel: the wheel rim abrasion loss is reduced, the noise between the wheel and the rail is reduced, the service life of the wheel is prolonged, and the wheel has absolute safety and excellent stability.

Description

The motor train unit power truck is with hanging down wheel rim arc tread wheel

Technical field

The utility model belongs to the high-speed railway passenger technology, especially relates to a kind of 200 kilometers motor train unit power truck wheels of speed per hour that are applied in to last low wheel rim arc tread wheel.

Background technology

The wheel tread of Chinese Railway passenger car bogie mainly contains two kinds of forms, adopts LM type tread form on the bogie truck of 160km/h speed class, adopts LMA type tread on the bogie truck of 200km/h speed class.Two kinds of treads are worn profile tread, dynamic performance is very poor, under the 100km/h speed conditions, LMA type tread wheel laterally bigger rocking can occur, under the 140km/h speed conditions, LMA type tread wheel rocks more serious, and noise is very big between when operation wheel track, can't satisfy the requirement of high speed railway operation requirement and comfort of passenger.

The utility model content

Technical problem to be solved in the utility model provides that a kind of wheeling edge wearing amount reduces, noise reduction, long service life between wheel track, have absolute safety and a good stationarity the EMU power truck with low wheel rim arc tread wheel, to satisfy high speed railway operation requirement, improve and take appropriate degree.

For solving the problems of the technologies described above, the utility model provides a kind of motor train unit power truck with hanging down wheel rim arc tread wheel, comprise wheel body, wheel tread and wheel rim, it is characterized in that: wheel tread is an arc, the wheel rim thickness B is 32.5mm, the wheel rim height H is higher than wheel tread baseline 29mm, and it is 13 fillet surface that wheel arc tread and wheel rim root have a transition central coordinate of circle RB.

The utility model is applied in CRH5 type EMU CA250 steering framing wheel to last, has compared following advantage with existing pattern tread wheel:

(1) the wheeling edge wearing amount reduces;

(2) noise reduces between wheel track;

(3) service life of increase wheel;

(4) adopt the vehicle of this novel tread wheel to have absolute safety and good stationarity.

Description of drawings

Accompanying drawing is a structural representation of the present utility model.

The specific embodiment

With reference to accompanying drawing, the utility model comprises wheel body 1, wheel tread 2 and wheel rim 3, wheel tread 2 is an arc, wheel rim 3 height H exceed 29mm with respect to wheel tread baseline 4, flange thickness B is 32.5mm, and the fillet surface of wheel arc tread and wheel rim root is that a transition central coordinate of circle RB is 13 circular arc.

Claims (1)

1. a motor train unit power truck is with hanging down wheel rim arc tread wheel, comprise wheel body, wheel tread and wheel rim, it is characterized in that: wheel tread is an arc, the wheel rim thickness B is 32.5mm, the wheel rim height H is higher than wheel tread baseline 29mm, and it is 13 fillet surface that wheel arc tread and wheel rim root have a transition central coordinate of circle RB.

Images