JPS60106731A - Method of controlling scraping amount of continuous type unloader - Google Patents

Abstract

PURPOSE:To make it possible to carry out scraping operation of predetermined amount even upon manual operation of a continuous type unloader, by setting the upper limit of travel speed of a scraping section in a bucket conveyer by means of a manual speed setting unit upon control of predetermined amount scraping. CONSTITUTION:In the case of carrying out scraping operation of predetermined amount upon manual operation, a signal processing device 7 receives a signal from a scraping amount detector 6 to compute an actual scraping amount. The result of the computation is delivered to a comparator 1 for comparing the same with a set scraping amount. A deviation signal due to the difference between the set scraping amount and the actual scraping amount is delivered to a travel speed adjusting meter 2, and a predetermined scraping instracting speed Vc in accordance with the deviation signal is delivered to a comparator 4. Further, a manual instructing speed Vm set by a manual speed setting unit 3 is delivered to the comparator 4 so that the speeds Vm, Vc are compared with eath other. Then, if, for example, Vc<Vm, the predetermined scraping instructing speed Vc is delivered to a scraping section travel speed control device 5 to make the scraping section travel at a predetermined speed to continue the scraping operation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is based on the following features:
This article relates to a method for controlling quantitative scraping by controlling the JJ speed.

Continuous type ANIN-DAC When unloading and covering materials such as ore, coal, or grain continuously, Baktu 1 ~ Ding-1 Embiang 7
The scraping unit is automatically moved at a predetermined speed to scrape off the waste in a routine manner, but in manual operation, the operator's intuition Since the scraping work was performed, it was necessary to rotate the fixed quantity scraping by 1j.

In view of the above aspects, the present invention has been designed to carry out quantitative scraping even in the case of manual operation in the evening. IT Uri,
The upper limit of the speed command for constant strip control is set to one dynamic speed command given by the operator.

Embodiments of the present invention will be described below with reference to the attached 11 drawings.

In Figure 1, 1 is set! ,: a comparator with which the actual scraping kando or the corrected bucket hanging is compared;
2 goes to the bubbler 1~=-Jn\'lff1 Adjustment of moving speed of the take part J1.3 is manual operation 11) The operator commands C manual speed using the manual lever, etc.! [dynamic speed controller,
4 is a comparator that compares the moving speed adjustment ηi2/]++ constant 1ii scraping command speed VC manual 31i general operation device 34 with the set manual command speed v111;
Conveyor \7 scraping section movement j * degree control device, 6t31 bucket 1 ~''nl\ya method ■R section GJJ: scraping hanging detector, 7 if an 0 processing device, 8 scraping hanging correction device, 9
(Bell J ~ School, which was established in Ikuuchi Competition 17, 1
0 is the average of removals passing through Bell 1-Scale 9 iM m
11 is a comparator that compares the set IJ average flow (i) with the actually unloaded IJ at regular intervals, 12 is a lifting control device that 11ii words (there are.

Detection of scraping 71 by baffle day is photoelectric 'Cjk fj
For example, in the case of a phototube method, the light blocking time by the shoe 1 is measured using a phototube, and the light blocking time is controlled to be constant. This is explained using Figure 2 - Zurudo, Baktu 1-1
Transmission time between 3 to++, /<Kera 1-13 and 6
When the light shielding by η14 is taken as [C11 between 1[ and 1], it is set as follows.

When performing manual operation 11, when carrying out a fixed-meter pail removal, the amount of scraping and hoisting are set, and the manual speed control 1' It will be done.

In the scraping amount detector 6, the scraping amount by the baffler 1 to competition
, 1, and the signal 1.1 is sent to the processing unit 7, where the actual scraping amount is calculated, and the signal is sent to the comparator 1 to set the It is better compared to the scraped hanging. A deviation signal based on the difference between the set 4t diameter diameter and the actual scraping river is output from the comparator 1 to the scraping section moving speed stone control fli 612, and in response to the deviation signal, a fixed amount diameter cutting command speed is set. VC is sent to comparator 4.

On the other hand, the manual fII speed setter 3e has set: 1'-movement command speed ■tn is sent to the comparator 4, which compares the constant diameter cutting command speed 1αVC with the manual command speed Vll+, <Vllll, the comparator 4 sends the constant diameter cutting command speed ■C to the scraping section movement speed control device 5,
To the baffle 1, the A71ffi removal part is fixed with the fixed diameter removal finger.
)) I decreases by 11 in accordance with Song 1 Liang VC; Also y6
>ym (from 31 comparator 4, manual command speed vIl
1 is sent to the scraping section movement speed control device 5,
The conveyor scraping section moves at a speed according to the commanded speed ym. Although this platform cannot be used for quantitative scraping, it can ensure operational safety.

-h, in the scraping operation 114, the flow of scattered material that has passed through the bell 1-scale 9 is accumulated, and the average flow (fi operation device 10- ('-The average flow ff1Q/t (t-/n) is calculated for a certain period of time, and the load 11ffio is set to the average flow mQ/T (t/n).
(t/n) is compared in the comparator 11, and a coefficient is output from the load lifting adjustment word 12 to the scraping correction device 8 according to the difference between the calculated average flow rate and the set value for unloading.
The unloading f? 1 'il! The coefficient of the J section is multiplied by the signal of the actual scraping cloth sent from the arithmetic processing unit 1, the C scraping river is corrected, and the corrected scraping sling and the set scraping sling are combined. According to the deviation signal J: determined by the difference, the fixed rate yc of 1 flea removal at constant interval is outputted from the comparator 41\ from the moving speed stone control 11fj if 2 of the moving part of the conduit removal part, and here, the constant 1 flea removal speed yc is outputted from the comparator 41\\, as in the above-mentioned case. Take command speed Vc and f movement command speed Vm
When Vc<Vm, a constant FL 1m removal command speed is output, and when Vc>Vm, a 1'' movement command speed Vllll is output (the moving speed of the scraper 811 is controlled).

In the above operation -C is to the bucket controller\7The moving speed of the scraping section is the fixed amount scraping command speed Vc or the manual command speed Vm
For the 1st g and operation n determined by , be careful only in the moving direction of the baffler 1-] 7 scraping section.

It should be noted that, in the example of Akira, when performing constant diameter cutting control, when performing C correction based on the average flow rate over a certain period of time, it was explained in -, but when I! Of course, there are other things that can be applied to this article, such as making changes to the 1Φ type within a range that does not go beyond the gist of this book!++2L/2.

According to the scraping f1 control method of the continuous under-der of the present invention, it is possible to easily perform constant diameter
The movement becomes iiJ Noh, the hand! VIJ] Operability during operation has been improved, and when performing automatic suspension 1 flea removal control operation, the upper limit of the moving speed of the baffler 1 to -I conveyor scraping section is limited to the manual speed command, making it easier to operate. For L″i, driving while checking safety (monkey, etc.) has many excellent effects.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of Ki Benmei's i'li♀pu ε-type an I-''-da diameter cutting control method 11, and Fig. 2 is not shown in Fig. 1. Figure C shows an example of the detection of the capture river 1 used in the first embodiment. In the figure 1 lit comparator, 2 +, J, transfer 8 speed i! '
J l115 BH13 is a manual speed operation 23.4 is a comparator, 5 is a movement speed control device, 6 is a scraping amount detector, l is a processing station location for operation C1, 8G, l is for JM lifting 11111 equipment,
9 is the belt scale, 1 () is the average flow rate ij'j';
In the same table, 11 is a comparator, and 12 is a lift control fbIil. 1,■ Product'1 Application Hitoishi Kawajima 1m Machu 1 Nigyo Co., Ltd.

Claims (1)

[Claims] 1) A continuous type rotor characterized by setting the upper limit of the moving speed of the A7 scraping section using a manual speed setting device when the constant 15 scraping control is carried out.
1ti removal amount control method.