JPS59209958A - Double-spindle electric truck for railway rolling stock - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a two-shaft electric bogie for railway vehicles, and in particular, to a two-shaft electric bogie for rolling stock that can smoothly pass through a curve without causing squeak noise or wear of the wheel 7 lunges. The present invention relates to a two-shaft electric bogie for railway vehicles that is suitable for use as a movable bogie.

[Background of the invention]

Conventional railway bogies have been designed to maintain the parallelism of the front and rear axes in order to prevent the occurrence of meandering vibrations caused by the sloped tread surface of the wheels during running. Like this: The shaft box was rigidly supported in the front and rear directions. Therefore, when traveling on a curve, the geometrical landing wheel causes an angular deviation in the direction of travel with respect to the rail,
This had the disadvantage that it caused wear and tear on the wheel flange and caused noise.

The first conventional example of a two-shaft electric trolley with an electric motor for hanging is
~3 figures of descendants shown. The wheels l, 1' are connected to the bogie frame 4 via spring devices 3, 3' by axle boxes 2, 2' at both ends thereof.
The vehicle body 6 is further supported via a pillow spring device 5. The electric motor 7° or 7' has its one side wheel shaft 1. Each IJ is supported at two points via bearings, and the other side is supported at one point on the bogie frame 4, making it a so-called three-point support.As shown in FIG. , 7' nose 8, 8'
is supported via anti-vibration rubber 9, 9', and the electric motor 7
．． The role is to receive the reaction force of rotation torque of 7'.

Therefore, the axle box bodies 2, 2' are connected to the axle box guard 1 provided on the bogie frame 4.
0.10' restricts forward/backward and left/right movement.

The rotational torque generated in the electric motor 7.7' is the drive unit +!
11.11' to the wheel set 1.1', and is transmitted from the axle box body 2.2' to the axle box guard 10.10', the bogie frame 4. It is transmitted to the vehicle body 6 via the anchor 12 of the pillow spring device 5. While traveling on a curve, the wheel axles t and t' are restrained by the bogie frame 4, so the wheel axles 1 and 1' are at the center of the curve 01 as shown in A of FIG.
The vehicle travels while forming an angle θ with the vehicle. For this reason, the wheel flange comes into contact with the rail heat, causing wear on the wheel flange and the rail, which also causes bumps and squeaks.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a means for preventing the occurrence of meandering vibrations in a bogie for a railway vehicle, and also for preventing the occurrence of wheel flange wear and screeching noise only when traveling on curves.

[Summary of the invention]

The present invention provides a two-shaft electric trolley with a suspension-type electric motor, and when the axle box support part of the wheel axle is movable in the front and rear and left and right directions, the front and rear motors are linked. In addition, an attenuator is provided between the link and the bogie frame, and the center side of the motor is connected to the bogie frame with a pin so that the axle is directed to the radius center of the curve.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 4 to 7.

4 to 7, the same reference numerals as in FIGS. 1 to 3 indicate the same parts. The electric fi7.7' is supported at 3 points in total, 9 points on the wheel shafts 1 and 1', and 1 point on the bogie frame 4, as in the past, but the connection with the bogie frame 4 is as shown in Fig. 7. , pin 1
4 supports the nose 8°38' of the electric fi7.7' via a vibration isolating rubber.

Therefore, in the present invention, only the spring devices 3, 3' that support the bogie frame 4 are provided on the axle box body, and the spring devices 3, 3' are moved forward and backward according to the lateral rigidity of the spring devices 3, 3'.

It has a structure 1 that can move one inch left and right, and transmits information to the bogie frame 4 via the swinging rubber 13 and pin 14 of the electric motor 7, 7'.

On the other hand, the electric motors 7 and 7' have a link receiver 1 facing the center of the bogie.
5.25' is symmetrically fixed at ξ, which is connected by a link 16, and a bracket 17 is provided at the bottom of the bogie frame 4, and an attenuator 18 is installed between one end of the link 16 and the bracket 17. .

Electric power generated from the rotational torque of electric motors 7 and 7'! &
The reaction force and longitudinal force of the wheels 7 and 7' are transmitted to the bogie frame 41 by the noses 8 and 8' via the anti-vibration rubber 13 and the pin I4.

To deal with meandering vibrations during straight running, the wheel shaft 1°1' is restrained by a link 16 and attenuated by a damper 18. On the other hand, while traveling on a curve, as shown in FIG.
．． Since the relative movement of 1' is restrained, the distance between the wheel and the rail (
In this case, no angular difference θ occurs. Therefore, there is no contact between the wheel flange and the rail, and wear of the wheel flange and rail is eliminated.

〔Effect of the invention〕

According to the present invention, since the contact between the wheel flange and the rail is quiet, there is no wear on the wheel flange and the rail, and there is no squeaking sound. This will reduce costs and prevent noise pollution.

[Brief explanation of drawings]

Figure 1 is a plan view of a conventional two-shaft electric trolley with hanging handles;
The figure is a side view, Figure 3 is a sectional view of Figure 1, and Figure 4 is a sectional view of Figure 1.
The figure is a plan view of a two-shaft electric trolley with a hanging type according to the present invention, FIG. 5 is a cross-sectional view of FIG. 4, FIG. 6 is a side view of FIG. 4, and FIG. The sectional view and FIG. 8 are plan views showing the positional relationship of the wheel sets along a curve. I, 1'... Wheel axle, 2, 2'... Axle box body, 3, 3'... Spring device, 4... Bogie frame, 5
...Pillow spring device, 6...Vehicle body, 7,7'.
...Electric motor, 8,8' tune...Nose, 9.9'...
... Anti-vibration rubber, 10.10', curve, shaft box guard, II
, I+'... Drive device, 12... Anchor, 13... Anti-vibration rubber, 14... Pin,
15.15'... Link receiver, 16... Link, 17... Bracket, 18... Attenuator / , (゛) Agent Patent attorney Akio Takashi ・,' 3rd figure 5th figure 5th figure 6n Off figure

Claims (1)

[Claims] 1. In a two-shaft electric trolley with a motor drive system in which the electric motor is supported at two points by the axle at one end and by the truck frame at the other end, the axle boxes provided at both ends of the axle are located at the front and rear,
A spring device is provided between the bogie frame and the axle box body so that it can move in the left and right direction, the motor and the bogie frame are connected with pins via anti-vibration rubber, and the link holder fixed symmetrically to the motor is connected with the link. A two-shaft electric bogie for a railway vehicle, characterized in that the two-shaft electric bogie is connected to each other and a damper is provided between the link and the bogie frame.