JPS5897623A - Stack detection device - Google Patents

Abstract

PURPOSE:To specify the height of a stack freely by fitting a stay to a frame for suporting a conveyor belt in such a way that the stay projects, moves, and oscillate by itself freely, handing down a member unwound from a take-up device, and suspending a detector. CONSTITUTION:A stay 7 is clamped by guide rollers 12 from above and below and allowed to project and move freely in the lengthwise direction of a belt conveyor. On the top surface of the stay 7, the winding device 5 consisting of a take-up drum 5a and a motor 6 is provided. A rope unwound from the take- up drum 5a is hung down through a rope sheave 11. A detector 3 is coupled with the hung-down end of the rope 4. Motors 6 and 10 are fitted with position detectors 13 and 14 which detect the position from the extents of rotation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for detecting the height of a pile of bulk materials (coal, ore, etc.) by a belt conveyor that horizontally lays bulk materials (coal, ore, etc.) in a yard.

Conventionally, a detector is hung from the tip of the boom, which is the frame that supports the belt conveyor, using a chain or the like to detect the desired pile. There was a drawback that the height could not be selected arbitrarily.

An object of the present invention is to arbitrarily select the pile height of bulk materials piled up in a yard and to detect the selected pile with a detector.

The gist of the present invention is to provide an apparatus in which a detector is suspended from a frame supporting a conveyor belt as a basic configuration and a pile is detected by the detector, in which stays 51 are movably attached to the 7 frames, and A member pulled out from a hoisting device attached to the frame or the stay is cut through the tip of the stay, and the dropped part of the member is hung on the detector. Equipped with a pile detection device, the center of the stay can be moved and the hoisting device can be rolled! By changing the relative position of the detector to the pile (by the IIL feeding operation), the height of the pile detected by detection can be changed freely, making it possible to freely select the pile height. At the point.

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.

The stacker crane is equipped with a boom man as a frame, which supports the conveyor belt l of the belt conveyor. The conveyor belt 1 is reversed by a pulley 2 at the tip of the boom.

The boom man is equipped with two sets of guide rollers, one at the top and one at the front and back), and the stay 7 is sandwiched between the guide rollers from above and below, and can be moved freely in the longitudinal direction of the boom man or belt conveyor. .

As shown in FIG. 2, the stay 7 is machined with a rack tooth profile 8. A pinion 9m of a drive unit w19 meshes with this rack tooth profile 8. The drive device 9 consists of a pinion 9m and a motor 1o with the pinion 9m attached to an output rotating shaft and installed on a boom man.

A hoisting device s is installed on the upper surface of the stay 7.

The hoisting device 5 includes a hoisting drum 5m and a motor 6 connected to the hoisting drum 51 shaft. After the rope 4 wound around the hoisting drum 5a is let out from the hoisting drum 5a, it is suspended downward via the rope sheep () which is freely rotatably attached to the tip of the stay "7". A detector 3 is connected to the hanging end of the rope 4.

Each motor 6, 10 is equipped with a position detector 13, 14 that detects the position from the amount of rotation.

In this embodiment, when the handled objects carried on the conveyor belt 1 are discharged from the goo υ-2s, the handled objects are piled up in a conical shape on the ground GL while maintaining the angle of repose θ peculiar to the handled objects. be done. When the pile top height Ht reaches the set height for unloading the handled items, it comes into contact with the detector 3 and it is known that the horizontal pile stop has reached the set height. After that, the Shipum people are moved by moving the stacker crane and going to another location to make the next pile.

The position of the detection 113 is vertically displaced by rotating the hoisting drum 5a with the motor 6, winding the rope 4 onto the hoisting drum 5a, and letting it out.
The pinion 9m is rotated, and the stay 7 is moved toward the center of the shipping area by retracting it from its protruding position toward the center of the shipping area. By moving the detector 3 up and down and toward the center of the stack, the height of the stack to be detected can be arbitrarily set variably, and stacking at an arbitrarily set height can be detected.

Since each displacement amount of the detector 3 can be detected by each position detector 13, 14, each displacement amount can be accurately controlled.

When detecting the pile 15, the detector 3 does not detect the apex portion of the pile, but directly detects the slope of the pile 15 at the height Hd. By changing the detection position of this detector 3, piles of different heights can be detected. In order to perform accurate detection without error, in detections 1 to 3, the stay 7 is moved as close as possible to the center of stacking, that is, to the apex.

The height of the pile is Ht, and the height of the head pulley is Ht.

When L is the horizontal distance between pulley 2 and each center of loading,
When the speed of the conveyor belt 1 is constant, the stacked pile due to the discharge of the material to be handled has the relationship shown in Figure 1. In this state, when detecting unloading with a height Ht, if the detection 113 is installed at the middle of the distance, the height hd from the top of the pile to the point where it contacts the pile is hd==l:, x
It can be calculated as tanθ (where /1=L-/).

Therefore, the horizontal distance 11 of the detector 3 from the pulley 2
By selecting the vertical distance H from the pulley 2, the pile height can be freely controlled.

According to this embodiment, since the pile height can be arbitrarily selected,
Yard management becomes more efficient, more efficient stacking is possible, and it is effective for automatic operation of stackers and the like.

As described above, according to the present invention, the height of the pile to be detected can be arbitrarily selected by changing the position of the detector that detects the pile, and the pile of the selected height can be detected.

[Brief explanation of drawings]

FIG. 1 is a side view of an apparatus according to an embodiment of the present invention, and FIG. 2 is a side view of a device according to an embodiment of the present invention. It is a perspective view which extracted and showed the hallway.

Claims (1)

[Claims] 1. In a device in which a detector is suspended from a frame supporting a conveyor belt and the detector detects piles, a stay is protruded from the frame and movably attached, and the number of attachments to the frame or the stay is nine. A pile detection device characterized in that a member fed out from a hoisting device is passed through a protruding end portion of the stay, and a separated portion of the member is hung on the detector.