JPS6026518A - Automatic centering equipment for belt conveyor belt - Google Patents

Abstract

PURPOSE:To eliminate meandering or eccentric traveling of a conveyor belt by froming a carrier supporting base frame in such a manner that a fixed frame is coupled at its both ends in a flexible manner with slide frames each one end of which is supported in a freely movable manner in vertical direction by means of a spring. CONSTITUTION:A base frame B, which supports a revolving carrier part A by a shaft, consists of both a fixed frame 4 and a pair of slide frames 5 and 5, each one end of which is inserted into the fixed frame 4 and coupled with the frame 4 in a slidable manner by means of a bolt 7 and a nut 8. And the other ends of the slide frames 5 and 5 are supported by a spring 16 so that they can freely move up and down in a bearing bracket C. This spring 16 is adjusted by means of an adjusting bolt 17 so that bolt tension is fully applied on carrier rollers a, a, and b, as well as the height of the carrier part A is determined. With this constitution, meandering or eccentric traveling of the conveyor belt can be prevented regardless of presense or absence of a load.

Description

DETAILED DESCRIPTION OF THE INVENTION An object of the present invention is to automatically correct meandering and deviation that occurs during regular movement of a belt of a belt conveyor, so that the belt always travels in the correct position 16.

The belt conveyor is a long belt running endlessly between the head and tail wheels.
(Since it is a mechanical equipment that transports goods by supporting it with a 7-ra and supporting it with a retan roller latte on the return side, it is possible that the center line of the entire conveyor may be misaligned, or even if the position of the carrier is slightly different.) Objects adhere to the conveyor belt, deforming its outer diameter, and causing the conveyor belt to meander and deviate directly.If the conveyor belt meanders and deviates during distribution, it may cause spillage at the loading position or midway, causing damage to the transported object. Losses, losses in collection and cleaning costs will be enormous, and the belt may rub against the conveyor frame and both ends of the belt may wear out.
It cannot be left unattended even at the moment, as it may cause a serious accident due to the cut pieces.

Many types of belt self-aligning devices have been put into practical use in order to prevent these obstacles, but none of them are satisfactory. This is because the following problems have not been resolved.

That is, when the belt is running with no load, such as when a conveyed object is loaded on the belt, the belt lifts up and the self-aligning device does not function sufficiently. Correcting the meandering deviation of the belt is not effective unless the belt tension is sufficiently applied to the carrier roller of the self-aligning device. In addition, in the case of the type that uses a desk, there is a risk of dust spilling from the belt at the joint between the carrier roller and the desk, and the conveyed object may become trapped and become inoperable.

This invention provides an excellent belt self-aligning device that eliminates bottlenecks and short points that could not be solved in the past, and also includes many other improvements to cope with unforeseen situations that may occur in the field. It is something.

An embodiment of this invention will be described with reference to the drawings.

This invention is composed of a rotating carrier section A that combines a general type carrier roller and a brake disk, a base frame B, and a support stand C.

The rotating carrier part A is a carrier roller with a braking disk 2 loosely fitted around the outer end of the roller a, which is a tapered disk. It is wrapped with a gap and rotatably fitted onto the roller shaft, and a circular rubber sheet 3 is inserted between the bearing bracket C and the desk to press the desk and save rotational force.

The brake disk 2.2 rotates independently of the carrier rollers a1.a, b.

The base frame B pivotally supports the rotating carrier part A, and is made up of a fixed frame 4 and a slide frame 5.5. A bearing 19 is provided on the fixed frame 4, and a slide frame 5.5 is provided from the right and left, and a guide head 6 is attached to the outer end of the slide frame 5.5.
．． The other end is inserted into the fixed frame 4 and connected with a bolt 7 and a nut 8, and by turning the bolt 8, it can slide freely within the fixed frame 4.

This slide is installed to adjust the width.

A guide head 6 of a slide frame 5 is loosely fitted into a bracket 15 in which a guide groove 14 is formed and supported by a push-up spring 16. An adjustment bolt 17 is attached to the top plate 12 with a rotating eye, and passes through the guide head 6 and the spring 16 loosely through the nut 17. Determine the height of Further, the push-up spring 16 is used to always push the carrier portion A upward so that the tension of the belt sufficiently acts on the carrier rollers a, a, and b.

The operation and features of this invention will be explained.

When the belt is running in the normal position on the belt conveyor in operation, only the rollers a, oscillator, and b are rotating in close contact with the belt, and the brake desk 2 is stationary. In this case, the resistance is balanced between the rotations of rollers a, a, and b, so the carrier part A is at a right angle to the belt line direction, but the belt meanders and deviates and comes into contact with either the left or right brake disk 2. Then, a large frictional resistance is generated between the belt and the brake disk 2, which has a large rotational resistance, and the carrier part A turns, so the belt moves to the normal position and the brake disk 2
Then, only the carrier rollers a, a, and b rotate, and the carrier part A turns and returns to the direction perpendicular to the belt. This operation is performed in the same manner as described above even if the belt is deflected in either the left or right direction.

Since the present invention is configured as described above, it is possible to reliably correct the meandering deviation of the belt regardless of whether it is loaded or unloaded, and the belt can always run in the correct position. Since dust and conveyed objects are not trapped in the joints between the carrier rollers a, a and the brake desk 2.2, the alignment function is not damaged by insects. Since the mounting width can be freely adjusted by expanding and contracting the slide frame 5.5, it has the advantage that even if the conveyor frame is slightly different, the installation work can be easily performed.

[Brief explanation of drawings]

Figure 1 is a partially cutaway front view of the assembly, and Figure 2 is a side view of the assembly. A is a rotating carrier part, B is a base frame, C is a support stand, a, a, b are carrier rollers, C is a bearing bracket,
1 is a carrier frame, 2 is a brake desk, 5 is a rubber sheet, 4 is a fixed frame, 5 is a slide frame, 6 is a guide head, 7 is a bolt, 8 is a nut, 9 is a floating port,
10 is a side plate, 11 is a mouth plate, 12 is a large plate, 13 is a bottom plate,
14 is a guide groove, 15 is a bracket, 16 is a push-up spring, 17 is an adjustment bolt, 1st is a nut, 19
is a bearing. Patent applicant Hirohei Shiomi

Claims (1)

[Claims] A carrier fa in which a braking disk 2, which is wrapped around the outer ends of outer rollers a and a to save U-rolling force, is fitted into a rotating roller.
A spring 16 that can extend and retract the fixed frame 4 that pivotally supports A and the slide frame 5 that has the guide head 6 [tension adjustment i within the support C that supports the guide groove 14 of the base frame B that is combined with E] Self-aligning device for a belt conveyor that is supported freely up and down by