JPS60223502A - Monorail track measuring car - 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 is intended for use in traveling on irregularities in a mole rail track, particularly in the case of subsidence of supports due to ground subsidence or irregularities in inclined foundations.

This relates to a mole rail track measurement vehicle that performs measurements while performing measurements.

[Background of the invention]

Conventional, straddle-type mole rail track sinking of supports, etc.
This error was measured by artificially sequentially measuring both ends of the track girder, that is, the track girder on the support. As a result, it took a long time, and it was difficult to measure the entire line during nighttime service suspension periods, and most of the work was at high altitudes, making the work fraught with danger.

[Purpose of the invention]

The object of the present invention is to provide a mole rail track measuring vehicle that can shorten the measuring time and safely measure track deviations by automatically measuring one track deviation while the vehicle is running.

[Summary of the invention]

The track girder of the straddle-type mole rail includes concrete girders, steel girders, etc., but generally both ends of the girders are supported from the ground by supports 1ζ via bearings. Therefore, since the track girder is manufactured under the condition that only both ends are supported, the occurrence of deformation of the girder body is extremely small and rarely causes a problem.

On the other hand, the supports that support both ends of the track girder tend to sink or tilt over a long period of time due to subsidence or loosening of the ground. As a result, the mole rail track may be bent vertically or horizontally at the contact portion of the girder at the top of the support, or the girder may be tilted. However, a particular problem in vehicle operation is the discrepancy between the digits.

The present invention rotatably combines a measuring wheel body held by one girder and a measuring frame with a measuring wheel that rolls along the other girder, and the relative rotation between the measuring wheel body and the measuring frame is It is designed to detect the amount and direction of rotation and measure the discrepancy between the digits.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a side view showing a mole rail track measuring vehicle according to the present invention.
FIG. 2 is a plan view thereof. Further, FIGS. 3 and 4 show examples of the structure of the connecting portion between the measuring car body and the measuring frame.

la and lb are girders, 2 is on the pillar 3 and girders 1a and 1b
It is a support that supports. Reference numeral 4 designates the upper surface of the girder 1, a two-shaft, three-wheel type running wheel that moves on top of the girder 1, and a guiding and stabilizing shaft arranged so as to roll along the side surface of the girder P. 7
8 is a vehicle body supported via a bearing box 6, 8 is a driving power unit, and 9 is a driving device.

10 is a measuring wheel supporting one end of the measuring frame 13 via a bearing box 11, 12 is a guide wheel, and 14 is, for example, a spherical hand portion for rotatably connecting the other end of the measuring frame 13 to the vehicle body.

Now, since the body 7 of the measuring vehicle is a two-axle, three-wheel system and is located on the girder lb, the car body 7 is guided by the running surface of the girder 1b without being affected by the inclination or twist of the girder 1a.

held by a stable surface. On the other hand, the measuring wheel 10 has two wheels with one shaft, and one end of the measuring girder 13 is connected to the vehicle body 7 side by the spherical surface part 141 so as to be able to turn freely. Take a position following 1a.

At this time, the spherical hand portion 14 has components in the respective directions between the vehicle body 7 and the measurement frame 13 according to the relative vertical and horizontal angles α and β of the girder 1a and the girder 1b and the torsion angle γ. The rotation is oppressive.

Detects the amount of rotation in three directions with digits 1a and 1.
By detecting the distance A from the connection part b to the spherical hand part 14, the length of the girder 1 is determined in relation to the length of the measuring girder 13.
Relative height between a and lb.

The left and right angles α, β and torsion angle γ can be set. As a typical position, when the point A=0, that is, the spherical hand 14 is exactly on the apex of the techniques 1a and 1b, the amount of rotation of the spherical hand 14 in each direction is on the order of magnitude 1a, I
It matches the angles α, β, and γ between b.

FIGS. 3 and 4 show examples of the structure of the spherical hand portion and the portion for taking out the amount of rotation of each directional component. In the figure, reference numeral 16 denotes a center pin provided at a position where the center of the spherical hand portion 14 coincides with the rotation center of the running wheel 4;
7 is a spherical bearing whose outer ring is fitted to one end of the measurement frame 13 and whose inner ring is supported by a center pin 16; 18 is a spherical bearing 1;
This is a presser foot for fixing the center pin 161. 1
9 is a presser foot for fixing the outer ring of the spherical bearing 17 to the measuring frame 131 and extracting the rotation of the vertical component of the measuring frame 13; 20 is a presser foot for fixing the outer ring of the spherical bearing 17 to the measuring frame 131; A rotation angle detector 21 is arranged opposite to the vehicle body 7 and is fixed to the vehicle body 7 side.
When the rotation amount of the directional component is transmitted to the rotation angle detector 20+ (this is a constant velocity universal joint with one end attached to the measurement frame 13 or presser foot 19 and the other end attached to the input shaft I of the rotation angle detector 20). .

In this way, the measuring frame 13 is centered around the spherical hand part 14.
When rotated in any direction, three rotation angle detectors 20
Since a+ 20b and 20c each detect only the amount of rotation in one direction component, it is possible to automatically detect the relative deviation of the girders 1a and 1b on that component side.

The above explanation describes the case of detecting discrepancies between digits, which is usually the most important. However, when measuring absolute values such as the inclination of digits, a gyro is installed on the measuring vehicle body. It is also possible to measure the absolute inclination angle of each digit by using it together with the measurement of the absolute inclination angle by I.

〔Effect of the invention〕

According to the measuring vehicle of the present invention, it is possible to automatically measure the discrepancy between the girders while the vehicle is running, and there are advantages such as not only the measurement can be performed in a short time but also the measurement can be performed safely.

[Brief explanation of the drawing]

FIG. 1 is a side view of one embodiment of the measuring vehicle according to the present invention, and FIG.
The figure is a plan view thereof, FIG. 3 is a sectional view of the spherical hand portion, and FIG. 4 is a side view of FIG. 3. 1a+1b...Girder, 2...Bearing, 3.
...Strut, 4...Travelling wheel, 5...
・・Guide ring, 5′・・・Stability shaft, 10・・・・
・Measuring wheel, 12... Guide wheel, 13...
Measuring frame, 14... Spherical hand part, 16...
...Center pin, 17...Spherical bearing, 19...
... Presser foot, 20 ... Rotation angle detector, 2
1...Constant velocity universal old man 't'1l1 31'2t2]

Claims (1)

[Claims] 1. A vehicle that has running wheels, guides, and stable wheels and can run stably on a track girder, and the other end of a measurement frame that has a measuring wheel that rolls along the track girder at the tip of the vehicle. The wheels are connected via a universal joint on the center line of rotation, and rotation angle detectors around three axes in the front-rear, left-right, and up-down directions are arranged at the connection between the vehicle and the measurement frame, and the rotational displacement of the measurement phase is detected by the rotation angle detector. A mole rail track measuring vehicle characterized by an angle detector ζ.