JPH01168562A - Truck for rolling stock - Google Patents

Abstract

PURPOSE:To omit any side beam and aim at the promotion of lightweightiness for a truck by using an axle spring as a plate spring, connecting an axle box and a cross beam to this spring directly, and transmitting body load to the axle box from the side beam, wile making it have a spring action which maintains a vibro-characteristic favorably. CONSTITUTION:An axle spring 1 is directly attached to a cross beam 2 and an axle box 3, and load of a car body 7 being transmitted via a bolster spring 4 is transmitted to the axle spring 1 and the axle box 3 from the cross beam 2. Simultaneously this axle spring 1 is constituted as two upper and lower sheets or plural sheets of plate springs in order to better a vibro-characteristic between a wheel 5 and the cross beam 5. With this constitution, any side beam can be omitted, so that the lightening of a truck in weight and its structural simplification can be contrived.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention makes it possible to reduce the weight of bogies, simplify the structure, increase train speed, and reduce operating costs and maintenance work.

(Prior art) There are various types of bogie bogies, but the basic ones are a pillow spring that connects the car body and the bogie, a horizontal burr connected to the pillow panel and placed perpendicular to the car body, and a horizontal burr inside which is placed in a horizontal position. It consists of side burrs arranged in the longitudinal direction of the car body that make up both sides of the shape, axle springs that connect the side burrs and the axle box, and wheels, and the car body load is the pillow panel.

It is transmitted in the following order: horizontal burr, side burr, axle spring, axle box, and wheel. In this case, since the side burrs are designed as almost complete rope bodies as strength members, the proportion of ME in the entire bogie is quite high and becomes a blind spot in reducing the weight of one bogie.

On the other hand, to improve train speed and reduce maintenance costs.

There has always been a need to reduce the weight of vehicles. Under these circumstances, the proportion of the weight of the bogie in the total weight of the vehicle was quite high, and there was a demand for technological development to reduce the weight of the two bogies and simplify the structure.

(Problems to be solved by the present invention) In view of the current situation, the present invention makes it possible to increase the speed of one train and reduce operating costs and maintenance work by reducing the weight of nine bogies and simplifying the structure. That is.

(Means for Solving the Problems) A measure for solving the above problems is to omit the side burrs by arranging a plate-shaped shaft spring directly between the horizontal burrs and the shaft box. In this case, the role of the axle spring is to transmit the vehicle body load from the lateral burr to the axle box, and also to perform a spring action to maintain good vehicle vibration characteristics. The order in which the vehicle body load is transmitted using this method is the muffler spring, horizontal burr, axle spring, axle box, and wheel.

(Example) The present invention will be described below according to an example shown in FIGS. 1 and 2.

FIGS. 1 and 2 are configuration diagrams of the truck. In this figure, the axle spring 1 is directly attached to the horizontal burr 2 and the axle box 3, and has the role of receiving the vehicle body load transmitted from the horizontal burr 2 through the pillow panel 4 made of air springs, coil springs, etc. and transmitting it to the axle box 3. conduct. At the same time, the shaft spring 1 has a spring action to improve the vibration characteristics between the wheel 5 and the lateral burr 2. The arrangement method of the shaft springs is shown in this figure as an example of two upper and lower springs sandwiching the horizontal burr 2 and the shaft box 3, but the required number changes depending on the load conditions.

(Effects of the Invention) The railway vehicle bogie according to the present invention is composed of a muffler spring, a horizontal burr, an axle spring, an axle box, and a wheel, as described in the above embodiment, and since the side burrs can be omitted, the bogie is By reducing the weight and simplifying the structure, it is possible to increase the speed of nine trains and reduce operating costs and maintenance work.

[Brief explanation of the drawing]

FIGS. 1 and 2 show a front view and a plan view of an embodiment of the present invention, and are configuration diagrams thereof. 1-axis spring, 2-horizontal burr, 3-axis box, 4-macra panel,
5 - Wheels, 6 - Lateral damper, 7... Vehicle body.

Claims (1)

[Claims] In bogie bogies, the axle spring is a leaf spring, which connects the axle box and the side burr, and transmits the car body load to the wheels and controls the vibration characteristics between the axle and the bogie frame, thereby reducing the side burr. A railway vehicle bogie characterized by omitting.