JPS62289467A - Car-body supporter 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] 3. Detailed description of the invention [Industrial application field] The present invention relates to a vehicle body support device for a railway vehicle.

[Conventional technology]

Vehicle shaking! 1WIl, the swing bolster type vehicle support device utilizes the lateral rigidity of coiled pillow springs installed on the left and right sides of the bogie frame, eliminating the need for rocking pillow fishing.
Since the bolster supports the vertical load of the vehicle body, the bolster must be strong enough to withstand the moment.

[Problem that the invention seeks to solve]

For this reason, it was not possible to sufficiently reduce the weight of the truck.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a vehicle body support device that has a bolsterless structure using coil springs and is compatible with tfI.

[Means for solving problems]

In order to achieve the above object, the present invention provides a car body support device for a railway vehicle that uses the lateral rigidity of pillow springs provided on the left and right sides of the bogie frame to buffer the rolling motion of the vehicle. and connecting the spring caps respectively placed on the pillow springs with a beam, and rotatably disposing the beam on a center pin vertically provided at the lower part of the vehicle body, and disposing a sliding member between the spring caps and the vehicle body, The present invention is characterized in that a tension device is provided to form a virtual center plate between the center shaft and the truck frame.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

The bogie 1 of the railway vehicle has the center of the left and right side beams 2, 2 connected to the cross beam 3.
are connected to form a bogie frame 4, and the axle boxes 6 of the pair of wheels 5.5 are supported by the side beams 2 via sandwich-like rubber 7.7.

A spring support 8 is installed on the outside of the center of the left and right side beams 2, 2, respectively.
．． 8 is provided, and coiled pillow springs 9, 9 are disposed on the spring supports 8, 8, respectively, with rubber pads 10, 10 provided above and below for absorbing high frequency imaging.

Spring caps 11 and 11 are attached to the tops of the pillow springs 9 and 9, respectively.
These spring caps 11.11 are connected by a beam 12, and oil dampers 13.13 are provided between the beam 12 inside the pillow spring 10°10 and the side beams 2, 2, respectively.
is provided.

On the other hand, a center pin 15 is vertically installed at the bottom of the car body 14, and the beam 12 is rotatably installed on the center pin 15 via a bush 16, and the sliding surface 17.17 provided at the bottom of the car body 14 A sliding member 18.18, such as a plane bearing or a rolling bearing, is arranged between the spring cap 11.11.

Further, a tow cable 19 is rotatably provided on the central shaft 15 protruding downward from the beam 12 via a bush 20, and connecting rods 21 and 22 are connected to both ends of the tow cable 19, respectively. The connecting rod 21 and the other connecting rod 22 are connected to the cross beam 3 while facing each other in the front and rear, and the towing cable 19 and the connecting rods 21 and 22 constitute a traction device that forms a two-link virtual core plate. There is.

On both sides of the tow rope 19, rubber stoppers 24.24 are supported by the side beams 2, 2 via brackets 23.23, respectively.
24 is provided with a predetermined gap from the tow cable 19, and a lateral damper 25 is provided between the lateral beam 3 and one of the connecting rods 21.

To explain the transmission of loads in each direction in the vehicle body support device configured in this way, the load in the vertical direction is transmitted from the vehicle body 14 to the pillow spring 9 via the sliding surface 17, the sliding part @ 18, the spring cap 11, and the rubber pad 10. It is further transmitted to filHQ2 via the rubber pad 10 and spring support 8.

In the case of the left and right direction, from the center bin 15 to the beam 12 and the spring cap 1
1, 11, supported by the lateral rigidity of pillow springs 9.9 via rubber pads 10.10.

In this case, the rubber pad 10 helps reduce the lateral rigidity of the pillow spring 9. Note that the movement of the vehicle body 14 increases, and the tow rope 1
9 and the rubber stopper 24, the tow cable 19 and the rubber stopper 24 come into contact, and the rubber stopper 2
4 and then transmitted to the side beam 2 via the bracket 23.

The load is transmitted in the longitudinal direction from the center pin 15 to the tow rope 19.
and connecting rods 21 and 22.

Further, since the beam 12 and the tow rope 19 are rotatably provided on the center pin 15, the rotation of the truck 1 is performed between the beam 12 and the tow rope 19, and in this case, the vertical load is applied to the sliding surface on the side of the vehicle body 14.
7 and a sliding member 18. In addition, horizontal damper 2
5 is installed eccentrically with respect to the central axis 15, it can also serve as a damping effect on the rotating motion of the cart.

Therefore, the beam 12 only transmits a portion of the rotational movement of the bogie 1 and the force in the left and right directions, and does not bear the bending moment that occurs to support vertical loads unlike conventional bolsters, so it is significantly lighter ψ. This makes it possible to achieve

〔Effect of the invention〕

As described above, the present invention provides a car body support device for a railway vehicle that utilizes the lateral rigidity of pillow springs provided on the left and right sides of the bogie frame to buffer the rolling motion of the vehicle, in which coil-shaped pillow springs are provided on the left and right sides of the bogie frame, The spring caps respectively placed on the pillow springs are connected by a beam, and the beams are rotatably provided on a center pin vertically provided at the bottom of the car body, and a sliding member is disposed between the spring caps and the car body, and Since a tension device is installed between the pin and the bogie frame to form a virtual center plate, the beam only transmits the rotational movement of the bogie and the force in the left and right directions, and does not bear the bending moment that occurs to support the vertical load. Therefore, compared to conventional bolsters, the weight can be significantly reduced.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, and FIG. 1 is a plan view;
FIG. 2 is a partially sectional side view, and FIG. 3 is a partially sectional front view. 1...Bolly 2...Side beam 3...Horizontal beam 4
...Bogie frame 5...Wheel 8...Spring support
9... Pillow spring 11... Spring cap 12.
...Beam 15...Center pin 18...Sliding member 19...Tow cable 21.22...Connecting rod Patent Applicant: Nippon Sharyo Mfg. Co., Ltd. ρ Agent: Patent attorney Kido Den part Ull
*1- Hiko1. ．． :i:,? l-〆一

Claims (1)

[Claims] 1. In a car body support device for a railway vehicle that uses the lateral rigidity of pillow springs provided on the left and right sides of the bogie frame to buffer the rolling motion of the vehicle, coil-shaped pillow springs are provided on the left and right sides of the bogie frame,
The spring caps respectively placed on the pillow springs are connected by a beam, the beams are rotatably provided on a central pin vertically disposed at the bottom of the vehicle body, and a sliding member is disposed between the spring caps and the vehicle body,
A car body support device for a railway vehicle, characterized in that a tension device is provided to form a virtual center plate between the center shaft and the bogie frame.