JPH02147831A - Instrument for measuring horizontal wheel pressing force - Google Patents

Abstract

PURPOSE:To accurately measure a horizontal wheel pressing force by eliminating the influence of the horizontal burden force of a running wheel when the horizontal wheel pressing force is measured. CONSTITUTION:At the time of measurement, a fixed cylinder 6 is pulled in by operating a fixed cylinder operating device 17. As a result, a running wheel ground-contacting plate 5 becomes free in the horizontal direction by means of a rolling device 7 and the road surface contacting force of a running wheel 2 becomes the vertical component only. In such state, double-acting cylinders 11 and 15 are pulled in and a guide wheel load sensor 9, stabilizing wheel load sensor 13, guide wheel ground-contacting plate 8, and stabilizing wheel ground- contacting plate 12 are retreated. As a result, gaps are produced between horizontal wheels 3 and 4 and the ground-contacting plates 8 and 12. When the gaps are produced, the double-acting cylinders 11 and 15 are extended until normal stringer widths are obtained by operating a hydraulic device 16 after zero balance is set in a digital horizontal wheel pressing force indicator 18 and the horizontal wheel pressing force is measured. Therefore, the influence of the running wheel 2 can be prevented when the pressing forces of the horizontal wheels 3 and 4 are measured, since the horizontal force burdened by the running wheel 2 can be relieved by means of a rolling device 7 supporting the running wheel ground-contacting plate 5.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a horizontal wheel pressing force measurement device, and particularly to a horizontal wheel pressing force measurement 'A@ suitable for a straddle type mole rail vehicle.

[Conventional technology]

Conventionally, in a straddle-type mole rail vehicle, the pressing force of the horizontal wheels using rubber tires against the track girders was used to control the vertical deflection of the horizontal wheels when the bogie was alone, that is, to control the vertical deflection of the horizontal wheels between the bogie frame on which the horizontal wheels were attached and the side of the track girder. It was determined from the relationship between vertical deflection and load from the spacing and outer diameter of the rubber tire. The pressing force determined in this way is not an actual measurement value, and there is a problem with its accuracy. In addition, when the vehicle body and the bogie are connected, the pressing force is measured using a horizontal wheel pressing force measuring device installed on the track inside the garage in the vehicle depot.

The horizontal wheel pressing force measuring device had a structure in which a load detection means was provided on the side surface of the measuring track girder corresponding to each horizontal wheel.

Note that related devices of this type include, for example, Japanese Patent Publication No. 10250/1983.

[Problem to be solved by the invention]

Among the above-mentioned conventional techniques, in the method of measuring and calculating the deflection of a horizontal wheel or the outer diameter of a rubber tire, the determined pressing force is not an actual measurement value and highly accurate measurement cannot be performed.

In addition, in the horizontal wheel pressing force measuring device described above, an imbalance may occur in the pressing force of the horizontal wheels due to the horizontal direction bearing force of the running wheels that bear the vertical loads of the car body and bogie, so that accurate pressing cannot be achieved. This was an obstacle to force measurement. That is, in the conventional horizontal wheel pressing force measuring device, sufficient consideration was not given to the horizontal force borne by the running wheels.

An object of the present invention is to provide a horizontal wheel pressing force measuring device that can accurately measure the pressing force of a horizontal wheel.

[Means to solve the problem]

The above object is to provide a horizontal wheel grounding plate provided at a position corresponding to the horizontal wheel on the side surface of the apparatus main body, a moving means for supporting the grounding plate via a load detection means so as to move forward and backward with respect to an object to be measured, and an apparatus. This is achieved by comprising a running wheel ground plate that is horizontally movable on the upper surface of the main body and supports the running wheels.

[For production]

The running wheel grounding plate supports the running, but can eliminate the horizontal force borne by the running wheels. In other words, the running wheel grounding plate is provided so as to be movable horizontally with respect to the main body of the device. , when the running wheel bears a horizontal force and rests on the running wheel ground plate, the running wheel ground plate moves to a position where the horizontal force it is bearing is no longer applied. Therefore, when measuring the pressing force of the horizontal wheels, the influence of the horizontal bearing force of the running wheels can be eliminated, so that accurate pressing force measurement can be performed.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, a running wheel 2, a horizontal wheel (guide wheel) 3, and a horizontal wheel (stability width) 4 are provided on a bogie frame l.

1(8) and 2 show the truck frame l placed on the main body 19 of the horizontal wheel pressing force measuring device. When the pressing force is not measured, the running wheel ground plate 5 is connected to the fixed cylinder operating device 17.
and a fixed cylinder 6, and the guide wheel grounding plate 8 and the stable width grounding plate ν are each fixed to a regular beam width by a hydraulic system @ 16 and a double-acting cylinder 11.15. At the time of measurement, the fixed cylinder operating device 17 is operated to pull in the fixed cylinder 6. As a result, the running wheel ground plate 5 is rotated v! L7 makes it free in the horizontal direction, and the road surface gripping force of the running wheels 2 is limited to the vertical direction. In this state, operate the hydraulic pressure Il ¥16 and press the double acting cylinder 11.1.
5, and the guide wheel load sensor 9. attached to the receiving plate 10.14. Stable wheel load sensor 13° Guide wheel ground plate 8.
The stable width ground plate 12 is lowered and retracted.

Therefore, horizontal wheel 3. A gap is created between the horizontal wheel 4, the guide wheel ground plate 8, and the stable width ground plate 12. In this state, after zero balancing is achieved using the horizontal wheel pressing category display 18, the hydraulic system 16 is operated to move the double-acting cylinder 11.
15 to the position where it reaches the regular girder width, and measure the horizontal wheel pressing force.

By the way, when loading a vehicle that has undergone maintenance inspection and maintenance onto the horizontal wheel pressing force measuring device main body 19 using an overhead crane or the like, a stable wheel relief device is used to prevent the horizontal wheel 4 from coming into contact with the side surface of the girder.
Addition is provided. The stable wheel relief device is capable of sandwiching the width of the side surface of the girder, and includes the above-mentioned double-acting cylinder and ground plate, but has a structure without a load sensor.

Then the upper part escapes and then the horizontal wheel 3. The horizontal wheel 4 is
Move the guide wheel grounding plate 8 and the stable width grounding plate claw in the direction to sandwich the girder width, respectively. This action causes the horizontal wheels 3. Since the horizontal wheels 4 are installed without contacting the side surfaces of the girder, they do not damage the rubber tires. Since the pressure can be released by the rolling device 7, when measuring the pressing force of the horizontal wheels 3 and 4, the influence of the H running wheels 2 can be prevented, and the pressing force can be measured accurately. Further, the running wheel grounding plate 5 is installed via the rolling device 7, and the configuration is simple.

Furthermore, by providing the stable wheel relief device,
Horizontal wheel pressing force measuring device main body 1
9, the rubber tires of each horizontal wheel 3, 4 will not be damaged.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to accurately measure the pressing force of the horizontal wheel.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view showing an embodiment of the horizontal wheel pressing force measuring device according to the present invention, and FIG. 2 is a side view of the device 1 (8). 1... Bogie frame, 2... Running wheels, 3.4
...Horizontal wheel, 5 ... Running wheel ground plate, 7
・・・・・・Rolling device, 8...Ol

Claims (1)

[Claims] 1. A horizontal wheel ground plate provided at a position corresponding to the horizontal wheel on the side surface of the apparatus main body, and a moving means that supports the ground plate so as to be movable forward and backward relative to the object to be measured via a load detection means;
A horizontal wheel pressing force measuring device comprising a running wheel grounding plate that is horizontally movable on the upper surface of the device body and supports a running wheel.