JPS6222045A - Tilting and swiveling mechanism for rail wheel of vehicle testing device - Google Patents

Abstract

PURPOSE:To use one driving shaft and improve the durability of a tilting and swiveling mechanism by driving hydraulically the driving shaft and a spherical flange for a rail wheel which are aligned and supported automatically. CONSTITUTION:The driving shaft 2 is supported on a moving table 6 capable of moving up and down freely to and away from a shaft support table 5 through an automatic aligning bearing 4 and moved by a hydraulic cylinder 7 for up/ down movement to tilt the rail wheel 12. This table 6 is coupled with the rail wheel flange 9 which is aligned and supported automatically by an automatic spherical cylinder 8 by hydraulic cylinders 16 and 17 for tilting to swivel the rail wheel 12 through the cylinders 16 and 17 and also swivel the rail wheel 12 at right angles to it through a flange 10 similar to the flange 9. Consequently, the driving shaft which is coupled in the center is not slid and prevented from twisting and vibrating, so that the durability of the tilting and swiveling mechanism is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention provides an inclination,
This invention relates to a wheel tilting and turning mechanism of a vehicle testing device that has functions such as turning.

[Conventional technology and problems]

In conventional vehicle testing equipment, each wheel is independent in order to provide functions such as tilting and turning, and the drive shafts of the left and right wheels are connected by a universal joint in the center of the equipment. , leading to an increase in torsional vibration, etc. In addition, in order to make the track wheels perform operations such as tilting and turning, the bottom and side surfaces of the support base that supports the drive shaft must slide, which requires precision in machining and assembling these parts, as well as making the operation difficult. This resulted in an increase in the number and capacity of hydraulic cylinders for use, which resulted in disadvantages such as a reduction in various operational responses.

[Purpose of the invention]

[Summary of the Invention] The present invention solves the above-mentioned drawbacks, and includes a cylinder mounting base that is fixedly installed in the center of the vehicle testing equipment bed and has two travel hydraulic cylinders on each side horizontally. , fixedly installed at the left and right ends of the vehicle testing equipment bed, and provided with a self-aligning bearing and tilting hydraulic cylinders disposed above and below the self-aligning bearing; A bearing stand is formed by integrating hydraulic cylinders via a moving stand, and fitting the moving stand so that it can slide vertically from a vertical hydraulic cylinder trap; , one end of which is slidably inserted into a key groove of a drive shaft connected to a power source via a telescoping joint, and a spherical surface having a sliding groove in the direction of the drive shaft on the spherical surface, and a spherical surface that matches the spherical surface. The spherical tube has a spherical surface, can be tilted in the direction of the drive shaft via a convex metal fitting that can slide in a groove provided on the spherical surface, and can be turned around the convex part of the convex metal fitting as an axis. It is composed of a spherical flange that is firmly sandwiched from both sides of the raceway, and a thrust bearing that is attached to both sides of the spherical 7 flange and connects the hydraulic cylinder for tilting and the hydraulic cylinder for swing. The first tilting hydraulic cylinder and the turning hydraulic cylinder are controlled via the first thrust pair link, and the vertical hydraulic cylinder is also controlled to tilt the drive shaft.

〔Example〕

Embodiments of the present invention will be described below with reference to Figures 1.2.3.4.5.

A drive shaft 2 is connected at one end to a variable speed motor via a telescoping joint 3 on a pet 1 of a vehicle testing device, and both ends are supported by self-aligning bearings 4.

The self-aligning bearing 4 is mounted on a bearing stand 51C that is fixed on the bed 1.
The stone is quarried on a movable platform 6 fitted with a trap that can be slid up and down.

In addition, the drive shaft 2 has a spherical surface 8 in the self-aligning bearing 4 1114.
The inner diameter surface is fitted so as to be slidable left and right, and is prevented from rotating by a key 13.

Furthermore, the outer diameter surface of the spherical surface 8 corresponds to the inscribed surface of the spherical surface 7 flange 9.10, and is slidably assembled, and also for transmitting the rotational force from the drive shaft 2 to the spherical flange 9.10. K. The spherical surface of the spherical surface 8 is provided with fN22 in the axial direction, and the bottom of the convex metal fitting 11 can slide in the groove 22, and the protrusion of the convex metal fitting 11 can rotate into the center hole of the spherical surface 7 flange 9.10. Can be installed freely.

In addition, the spherical 7 flange 9.10 firmly clamps the raceway 12 on its inner surface without slipping during rotation, and the spherical 7 flange 9.10 is tilted through the thrust bearing 14.15 on its outer surface.
Pressure is applied by tilting hydraulic cylinders 16 and 17 and swinging hydraulic cylinders 18 and 19, which are attached to the upper and lower ends of the movable table 6 and to the left and right sides of the cylinder mounting base 20, respectively, so as to be able to rotate. be done.

In order to move the track ring 12 laterally, it is possible to extend and retract the tilting hydraulic cylinders 16 and 17 and the turning hydraulic cylinders 18 and 19 in parallel.

The wheel tilting and turning mechanism of the vehicle testing device configured as described above will be specifically explained assuming the actual lay of the track. First, when assuming a curved track, the vertical hydraulic cylinder 7 expands and contracts to tilt the drive shaft 2, and the left and right rail wheels 1
In addition to providing a height difference to 2, a hydraulic cylinder for tilting,
16 and 17 to correct the inclination. Further, the turning hydraulic cylinders 18 and 19 are operated to give the raceway 12 a turning degree according to the radius of the curve.

In addition, if a gauge deviation is assumed, use a hydraulic cylinder for tilting.
Operate the hydraulic cylinders 16 and 17 and the swing hydraulic cylinders 18 and 19 in parallel with each other.

〔Effect of the invention〕

As described above, according to @coffin of the present invention, a durable vehicle testing device with excellent performance can be manufactured, the trouble of on-site running tests of vehicles can be saved, and sufficient effects can be expected for research on improving vehicle performance. .

FIG. 5 is an elevational view of the raceway. FIG. 5 is a plan view of the raceway.

DESCRIPTION OF SYMBOLS 1... Bed, 2... Drive shaft, 3... Expandable joint, 4... 1. 11... Convex metal fitting, 12... Rail transport, 13... Key, 14', ~15... Thrust bearing, 16.1
7... Hydraulic cylinder for tilting, 18, 19... Hydraulic cylinder for swinging, 20... Cylinder mounting base, 21
・Wheel of 'X test vehicle, 22... Groove of ball.

Designated Agent: Tatsuzo Honma, Director of Legal Affairs Division, Office of the President of Japanese National Railways " [ Sai 4 figure

Claims (1)

[Claims] A cylinder mount is fixedly installed in the center of the vehicle testing equipment bed and has two hydraulic cylinders for swinging horizontally on both sides, and a cylinder mount is fixedly installed in the left and right ends of the vehicle testing equipment bed and has an automatic adjustment cylinder installed therein. Tilt hydraulic cylinders are arranged above and below the center bearing and the self-aligning bearing, and the self-aligning bearing and the two tilting hydraulic cylinders are integrated via a moving table, and the moving table is connected to the vertical hydraulic cylinder. a bearing stand that is fitted so as to be slidable in the vertical direction; and a drive shaft that is fitted into the self-aligning bearing and whose one end is slidable into a key groove portion of a drive shaft connected to a power source via a telescoping joint. a spherical cylinder that is fitted into the spherical cylinder and has a sliding groove in the direction of the drive shaft on the spherical surface, and a spherical surface that matches the spherical cylinder surface,
and is configured to be tiltable in the direction of the drive shaft via a convex metal fitting that is slidable in a groove provided on the spherical surface of the spherical cylinder, and to be able to turn around the convex portion of the convex metal fitting as an axis, and a rail. It consists of a spherical flange that firmly sandwiches the wheel from both sides, and a thrust bearing that is attached to both sides of the spherical flange and connects the hydraulic cylinder for tilting and the hydraulic cylinder for swing. Controls the tilting hydraulic cylinder and the swinging hydraulic cylinder,
Further, a wheel tilting/turning mechanism for a vehicle testing device, characterized in that by controlling the vertical hydraulic cylinder and tilting the drive shaft, functions such as tilting and turning are given to the raceway.