JPH06127386A - Automatic slip detecting stop device for traction vehicle - Google Patents

Abstract

PURPOSE:To provide an automatic slip detecting stop device for detecting the slip state of a traction vehicle automatically so as to stop the transport vehicle safely by a stop means not based on the friction between rails and wheels. CONSTITUTION:An automatic slip detecting stop means for a traction vehicle is provided with a travel distance detecting means for detecting the travel distance of a vehicle 1 from the rotation of the wheels 4 of the vehicle 1, a distance measuring means for measuring the travel distance of the vehicle from the outside of the vehicle, an acceleration detecting means provided at the vehicle 1, and a control means for judging a slip from the travel distance difference between the travel distance detecting means and the distance measuring means and also from the change of acceleration so as to output a signal for stopping the vehicle 1 by a stop means engaged with rails 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material and material transport vehicle which is towed by a tow vehicle on a rail in shield work.

[0002]

2. Description of the Related Art For example, as shown in FIG.
It is known that Zuritro, which is a carrier for transporting materials and equipment in the shielded pit 30 constructed in 1, is moved by being pulled on the track 5 by the battery locomotive 1.

[0003]

However, in this technique, when the steep road is constructed, referring to FIG. 9, if grease 35 such as grease adheres to the rails and wheels, the friction brake will not work. First of all, slippage causes runaway / unstoppable condition and is dangerous.

Therefore, during steep construction, for example, as shown in FIG.
As shown in Fig. 3, a stopper 34 was provided at the end of the track to prepare for an emergency.
There is also an example of rushing into 3
I was also dealing with such things as scatter.

However, inspecting oils and fats on a long track is not practical from the viewpoint of man-hours and time required for inspection, and the actual condition is to inspect oil and fat only after a slip occurs.

Therefore, the present invention provides an automatic stop detecting / stopping device for a towing vehicle that automatically detects a slip state and safely stops a transport vehicle with a stopping device that does not rely on friction between a rail and a wheel. It is an object.

[0007]

According to the present invention, in a material and material transport vehicle or a Zuritro that is moved by being pulled by a tow vehicle on a rail in shield construction, traveling in which the traveling distance is detected from the rotation of the wheels of the vehicle Distance detecting means, distance measuring means for directly measuring the traveling distance of the vehicle from outside the vehicle, acceleration detecting means provided in the vehicle, difference in traveling distance between the traveling distance detecting means and distance measuring means, and changes in acceleration. And a control means for outputting a signal to stop the vehicle by the stop means that engages with the track when it has continued for a predetermined time.

It is preferable that the traveling distance detecting means is constructed such that a rotary encoder is attached to the wheel to detect the traveling distance from the rotational speed and the diameter of the wheel, and the distance measuring means uses a light wave distance meter.

Further, it is preferable that the stopping means for engaging the vehicle with the track is composed of a wire provided on the track and a hook having a shock absorber provided on the vehicle.

[0010]

In the automatic slip detection / stop device for a towing vehicle configured as described above, the traveling distance detected from the rotation of the wheels is different from the traveling distance directly measured by the distance measuring device outside the vehicle, and the accelerometer is used. If the state in which the acceleration is detected continues for a predetermined time, the control means determines that it is a slip, and lowers the hook having the shock absorber provided on the battery loco to engage with the wire provided on the track. Stops the towing vehicle.

[0011]

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

In the drawings, members having the same function are designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 1, a battery locomotive body 1 is provided with an axle 3 and wheels 4 fixed to the axle 3 via a carriage 2. The wheels 4 are on rails 5.

Also referring to FIG. 2, a slit disk 7 of a rotary encoder is attached to the axle 3, and the slit disk 7 is provided with a slit 7a and a slit 7b serving as a reference pulse. Further, a light emitting diode 9 and a phototransistor 10 are provided on both sides of the slit disk 7 to detect the number of rotations, and an index scale 11 is attached to the same side as the phototransistor.

Further, in FIG. 3, the first optical wave range finder 15 measures up to an inflection point A between the first rail 5a and the second rail 5b where the slope changes. From the second
Is configured to be measured by the optical wave range finder 16.

A reflective prism 17, for example, is attached to the rearmost portion of the transport vehicles 1a and 1b towed by the battery locomotive 1.

More specifically, referring to FIG. 7, the inflection point A is smoothly inflected by the vertical portion D. In A1, the reflecting prism 17 receives only the incident light from the first lightwave rangefinder 15, in A2 the incident light from the first and second rangefinders, and in A3 from the second rangefinder only. It can receive light,
The measurement value of the first range finder 15 is taken until the measurement by the first range finder 15 becomes impossible, and then the second range finder 16 is used.
It is configured to take and add the measured values of.

In FIG. 4, a plurality of high-tensile wires 20 are attached between the rails 5, 5 laid on the sleeper 5a. Further, the wires 20 are attached at a predetermined interval determined by the degree of gradient and in a plurality of units (for example, two wires each).

FIG. 5 shows a battery locomotive 1, which is provided with a stop device 21 having a hook for engaging the wire of FIG. 4 and an acceleration sensor 19.

Referring to FIG. 6, the stopping device 21 is composed of an oil damper 22 and a spring 23, and one end of a main body of the stopping device 21 is pivotally attached to a carriage (not shown) by a pivot shaft 24. A hook 25 is pivotally supported on the other end of the main body, and the hook 2
Reference numeral 5 is a hook support arm 26 configured to allow fine adjustment of the angle with the oil damper 22.

The main body attached to the attachment angle θ = 0 by the motor 28 with the wire 27 is constructed so that the attachment angle θ = θ1 of the angle holding plate 27 is obtained by rewinding the motor 28.

Therefore, even when the battery locomotive 1 is braked, for example, when grease adheres to the wheels and begins to slip, the travel distance detected from the rotation of the wheels is less than the measurement distance of the lightwave rangefinder, and If the accelerometer indicates acceleration and the same state elapses for a predetermined time (for example, 0.5 seconds), the control device (not shown) determines that the slip occurs, rewinds the motor 28, and rewinds the hook 25 to the position of θ 1. Down to engage the wire 20 and stop the battery locomotive.

The hook has a shock absorber composed of a spring and an oil damper, and the high-tensile wire and the rail also have a shock absorbing force. The wires are attached in a plurality of units and there is no mishook, so that the hook can be stopped reliably.

Further, it is preferable that the stop device 21 be mounted in front of and behind the battery locomotive 1 so that it can be used in both directions.

[0025]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, even if oil or grease such as grease adheres to the rails or wheels and the friction brake is not effective, the grade rails ensure reliable operation. It is safe because it can automatically stop towing vehicles such as battery locomotives.

[Brief description of drawings]

FIG. 1 is a rear view of a battery locomotive showing an embodiment of the present invention.

FIG. 2 is a perspective view showing the structure of the rotary encoder of FIG.

FIG. 3 is a diagram showing an example of the overall configuration of distance measurement using a light wave distance meter.

FIG. 4 is a diagram in which a high-strength wire is attached to a rail.

FIG. 5 is a side view in which a stopping device is attached to the battery locomotive.

FIG. 6 is a view showing the structure of a hook of the stop device of FIG.

FIG. 7 is a diagram showing details of point A in FIG.

FIG. 8 is a schematic side view showing an example of a conventional technique inside a shield pit.

FIG. 9 is a diagram showing an example of conventional slip prevention measures.

[Explanation of symbols]

 1 ... Battery locomotive 2 ... Bogie 3 ... Shaft 4 ... Wheel 5 ... Rail 6 ... Rotary encoder 7 ... Slit disk 9 ... Light emitting diode 10 ... Phototransistor 11 ... Index scale 15 ... First lightwave rangefinder 16 ... Second Optical wave range finder 17 ... Reflecting prism 20 ... High tension wire 21 ... Stopping device 22 ... Oil damper 23 ... Spring 25 ... Hook 28 Motor

Claims (1)

[Claims] 1. In a material / material transport vehicle that is moved by being pulled by a tow vehicle on a rail in shield work, a travel distance detecting means for detecting the travel distance from rotation of wheels of the vehicle and a travel distance of the vehicle from outside the vehicle. When the distance measuring means for directly measuring the distance, the acceleration detecting means provided in the vehicle, and the difference in the traveling distance between the traveling distance detecting means and the distance measuring means and the change in the acceleration continue for a predetermined time, it is judged as a slip. An automatic slip detecting / stopping device for a towing vehicle, comprising: a control unit that outputs a signal to stop the vehicle by a stop unit that engages with the track.