JPH0153715B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic travel control device for so-called coke oven working machines such as coke extruders, coke guide cars, and coal charging cars.

The above-mentioned coke oven working machine travels according to the working kiln number, decelerates when it approaches the designated kiln, and stops within a predetermined accuracy at the kiln core of the designated kiln number, and its travel and positioning stop are extremely important. Recently, automation of the running of coke oven working machines has become popular in order to save labor and improve stopping accuracy.

As a conventional travel automation device, there is a device in which sensing pieces for detecting the position of the kiln are arranged on the furnace side for each furnace, and this is detected by a proximity switch provided on the coke oven working machine side. In addition, as another device, a rolling wheel (Tatsuchi roller) that rotates along the traveling rail is installed on the work machine side.
A device that detects the position using a pulse transmitter or the like connected to the rotating shaft has been put into practical use.

However, in the former device using a sensing piece and a proximity switch, the mounting pitch of the sensing piece is generally 1.0 to 1.5 m, which is rough, making continuous position detection difficult. Further, although it is easy to detect the kiln core, it is difficult to detect positional deviation with respect to the kiln core because it is detected at one point.

The latter roller-type type allows fine position detection by increasing the detection resolution of a pulse transmitter that converts the rotation angle into an electrical signal, but if the wheels slip or wear out, the kiln core may be damaged. It is difficult to detect accurately.

In particular, in coke ovens, coal at room temperature is heated and dry distilled in batches to over 1,000 degrees Celsius, so thermal expansion and contraction change significantly due to temperature changes in the kiln, and the running and stopping accuracy required for coke oven operating machinery to operate is ±10.
It was difficult to constantly maintain the range of ~±20 mm with the above-mentioned conventional device.

The present invention has been made to eliminate the above-mentioned defects, and to explain an embodiment of the present invention shown in the drawings, a coke oven 3 is provided with a sensing piece 1 for detecting the oven position on the oven side of each oven 2. In the coke oven working machine 4 that travels along the line, a position detector 5 detects the oven number and an oven core detector 6 detects the travel stop position.
The speed is controlled from the start of running until just before stopping by the signal from the position detector 5, and just before the stop position, the running speed and stop position are controlled by the signal from the kiln core detector 6. This is a travel control device for the above-mentioned coke oven working machine. The coke oven working machine 4 runs on rails 7, 7 laid in the longitudinal direction of the coke oven 3 (orthogonal to each oven 2), and is equipped with rollers 8 (touch rollers) that roll on the rails 7. A pulse transmitter 10 (pulse generator) is provided on the rotating shaft 9 of the wheel 8, and a kiln number detector 11 and a traveling positioning device 12 are provided based on the signal from the transmitter 10, forming a wheel-type position detector 5. do. Detection sensor 1 is installed in the kiln core detector 6.
3 and can detect the sensing piece 1 provided in each kiln 2 (for example, an optical position detector (for example,
44118). In the figure, reference numeral 14 indicates a running wheel of the working machine 4, 15 a speed reducer thereof, and 16 a running motor. In FIG. 3, 17 is the travel distance of the working machine 4, 18 is the start position, and 19 is the stop position.

Therefore, the kiln number command 22 and running start command are given, and the working machine 4 is started and runs along the rails 7, 7, and the wheels 8 rotate as the machine runs. Then, the kiln number detector 11 detects the current kiln number (current position) based on the pulse signal generated by the same rotation, and the traveling positioning device 12 compares and calculates the current kiln number, and the traveling direction and speed are determined by the traveling drive control panel. 20 and travels to the designated kiln number 2. During this time, speed control is performed by a pulse transmitter 10 provided on the wheel shaft 9.
It is controlled by the position signal output from. The control speed pattern is from the start position 18 to the immediately before stop position 19 in FIG. When the working machine 4 approaches approximately 200 mm in front of the kiln core of the designated kiln number, the position signal is automatically switched to the position signal of the kiln core detector 6. Then, the traveling drive control panel 20 is operated according to the switched signal to detect the kiln core (the optical position detector can detect the kiln core with an accuracy of ±2 mm).
The working machine 4 is stopped at the kiln core. The travel stop pattern is from the immediately preceding position 21 to the stop position 1 in Fig. 3.
Shown between 9 and 9.

Since the present invention is configured as described above, the detection accuracy is low, but the coke oven working machine 4 is run until just before it stops using the position detector 5 that can detect the position over a wide range, and then the oven core is detected with high precision. The kiln 6 can be automatically switched to the kiln 6, and the kiln core of the designated kiln number can be accurately and quickly stopped. In other words, with this device, it is possible to quickly and accurately automatically stop the kiln core of the designated kiln number from the start of travel, and unlike conventional devices, it is possible to correct the travel error after stopping at the designated kiln number. This eliminates the need to operate the coke oven, which has the practical benefit of promoting labor-saving and unmanned coke oven operating machinery.

The pulse transmitter 10 may be replaced by a synchro electric machine, a synchro resolver, etc., as long as it can convert the rotation angle of the wheels into an electrical signal, and the running of the coke oven working machine 4 may be performed without depending on the wheels 8. It may be possible to use a device that can measure the position, such as a device that detects the position from the ground side using microwaves or the like. Further, in place of the above-mentioned optical position detector, it is possible to use a proximity switch such as an electrostatic type or an inductive type that can continuously measure the kiln core. Also, the position detector 5 is connected to the kiln core detector 6.
As described above, the switching time is about 200 mm just before stopping, but it can be increased depending on the performance (detection range) of the kiln core detector 6.

[Brief explanation of drawings]

FIG. 1 is a plan view of a coke oven equipped with a running control device for a coke oven operating machine according to the present invention, FIG. 2 is a block diagram of the same device, and FIG. 3 is a speed pattern diagram of the same device. DESCRIPTION OF SYMBOLS 1...Kiln position detection sensing piece, 2...Each kiln, 3...Coke oven, 4...Coke oven working machine, 5...Position detector, 6...Kiln core detector.

Claims (1)

[Claims] 1. In a coke oven working machine 4 that runs along a coke oven 3, in which a sensing piece 1 for detecting the oven position is provided on the oven side of each oven 2, a position detector 5 that detects the oven number and a running stop position are detected. The speed is controlled from the start of running until just before stopping by the signal from the position detector 5, and just before the stop position, the running speed and stop are controlled by the signal from the kiln wick detector 6. A travel control device for a coke oven working machine configured to perform position control.