CN202156750U

CN202156750U - Detecting and controlling device for running state of belt conveyor

Info

Publication number: CN202156750U
Application number: CN201120275680XU
Authority: CN
Inventors: 张贵庆; 李志锋; 李家林; 赵运达
Original assignee: China Tobacco Shandong Industrial Co Ltd
Current assignee: China Tobacco Shandong Industrial Co Ltd
Priority date: 2011-08-01
Filing date: 2011-08-01
Publication date: 2012-03-07
Anticipated expiration: 2021-08-01

Abstract

The utility model discloses a detecting and controlling device for the running state of a belt conveyor, which belongs to the technical field of belt conveyors, and comprises a programmable logic controller for controlling the running state of the belt conveyor. A sensing component is fixedly mounted at one end of each of a driving belt pulley and a driven belt pulley, and sensing switches are arranged on a frame of the belt conveyor, correspond to the sensing components in positions and are electrically connected with the programmable logic controller. The detecting and controlling device with the structure is capable of acquiring revolutions of the driving belt pulley and the driven belt pulley, processing the revolutions by the aid of the programmable logic controller so as to know the running state of the belt conveyor, alarming faults of the belt conveyor timely and making a certain treatment, so that problems can be timely discovered, and labor intensity of workers can be relieved.

Description

Belt conveyer running state measuring and controlling device

Technical field

The utility model relates to the belt conveyer technical field, relates in particular to a kind of belt conveyer running state measuring and controlling device.

Background technology

The phenomenon that present belt conveyer some common faults takes place and follow these faults through regular meeting in the process of convey materials; The excessive putty that causes of slipping of the belt or mass flow for example; The transmission fault of reductor and driving pulley causes the driving pulley rotation speed change, and the transmission fault of driving pulley and driven pulley sends out the rotation speed change that causes driven pulley, if the length more or load-transfer device of the conveyer quantity in the workshop is longer; Utilize difficulty of these failure ratios of manual monitoring; The initial stage of some fault possibly be difficult to find that fault can not be handled timely might cause bigger loss, influences the work efficiency of machine.

Summary of the invention

The utility model technical matters to be solved is: a kind of belt belt conveyer running state measuring and controlling device is provided, and it can detect belt conveyer some most common failures in the course of the work, and some fault is done corresponding processing.

For solving the problems of the technologies described above; The technical scheme of the utility model is: a kind of belt conveyer running state measuring and controlling device; Comprise the Programmable Logic Controller of the mode of operation that is used to control said belt conveyer, an end of the driving pulley of said belt conveyer and driven pulley is installed with inductive means respectively, and the frame of said belt conveyer is provided with inductive switch; Said inductive switch is corresponding with the inductive means position, and said inductive switch is electrically connected with Programmable Logic Controller.

As a kind of improvement, said inductive switch is near switch.

As a kind of preferred version, said inductive means is fan-shaped tablet.

Owing to adopted technique scheme, because inductive means is fixedly mounted on an end of driving pulley and driven pulley, then driving pulley and driven pulley whenever circle; Inductive means just rotates a circle accordingly, because inductive switch is corresponding with the inductive means position, and inductive switch is electrically connected with Programmable Logic Controller; Therefore, inductive switch can produce one time induced signal when inductive means whenever circles, pass to Programmable Logic Controller; But the number of times of Programmable Logic Controller recording signal; Learn the revolution of driving pulley and driven pulley thus and handle that Programmable Logic Controller can write down driving pulley and the revolution of driven pulley in the certain hour through clocking capability, because the reductor rotating speed of belt conveyer can directly be known through Programmable Logic Controller; And there is certain proportionate relationship in the rotating speed of reductor, driving pulley and driven pulley; Therefore Programmable Logic Controller is periodically done comparison to the revolution of the reductor of belt conveyer, the revolution and the driven pulley revolution of driving pulley, whether has fault thereby detect being in transmission connection between them, if having fault then make the transmission fault alarm through Programmable Logic Controller; And shut down and handle; The revolution of several cycle driven pulleys that Programmable Logic Controller storage simultaneously is continuous compares the revolution in these several cycles, descends continuously if find the numerical value of revolution; Then think slipping of the belt fault or putty; Make slipping of the belt fault fault alarm by Programmable Logic Controller, can in time pinpoint the problems like this, alleviated staff's labour intensity.

Because it is said inductive switch is near switch, strong again near the switch antijamming capability, and can select multi-form near switch according to different working conditions.

Said inductive means is fan-shaped tablet, because tablet needs rotation, tablet is that fan-shaped use is more convenient.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is that scheme drawing is looked on the left side of Fig. 1;

Fig. 3 is the running condition scheme drawing of the utility model embodiment;

Among the figure: 1, frame; 2, support; 3, near switch; 4, tablet; 5, driving pulley; 6, driven pulley.

The specific embodiment

Shown in Fig. 1, Fig. 2 and Fig. 3 were common, a kind of belt conveyer running state measuring and controlling device comprised the Programmable Logic Controller of the mode of operation that is used to control said belt conveyer; The driving pulley 5 of said belt conveyer and an end of driven pulley 6 are installed with inductive means respectively; The frame 1 of said belt conveyer is provided with inductive switch, and said inductive switch is corresponding with the inductive means position, and said inductive switch is electrically connected with Programmable Logic Controller; Said inductive switch is near switch 3; Saidly be installed on the support 2 near switch 3, support 2 is installed on the frame, and said inductive means is fan-shaped tablet 4.

The principle of work of the utility model is: when the Controlled by Programmable Controller belt conveyer started, reductor drove driving pulley 5 and rotates, and driving pulley 5 drives driven pulley 6 and rotates; Tablet 4 is along with the rotation of driving pulley 5 and driven pulley 6; The revolution of driving pulley 5 and driven pulley 6 is gathered in beginning in real time behind the Programmable Logic Controller suitable time-delay, and revolution is handled, generally; The main gear of belt conveyer adopts shaft-mounted; Reductor is identical with the rotating speed of driving pulley 5, and driving pulley 5 is identical with the outside dimension of driven pulley 6, and the rotating speed of the two is identical under the situation of normal operation; With the said circumstances is example, and the workflow of Programmable Logic Controller is done a simply explanation:

At first, after machine run, Programmable Logic Controller loads the theoretical rotational speed of driving pulley 5 according to the rotating speed of reductor, the sampling sensor I/O address, and behind the suitable time-delay, the revolution of synchronous acquisition driving pulley 5 and driven pulley 6, and do following computing:

(1) judgement of driving pulley 5 states:

The actual revolution and the theoretical revolution of driving pulley 5 in the same cycle are compared, conclude reductor if difference exceeds certain limit and the transmission of driving pulley 5 is broken down, and report to the police and shut down.

(2) judgement of driven pulley 6 states:

The driving pulley of gathering in the same cycle 5 revolutions and driven pulley 6 revolutions are compared, judge that if difference exceeds certain limit the transmission between driving pulley 5 and the driven pulley 6 is broken down, and report to the police and shut down.

(3) the excessive detection of putty or resistance:

Gather the revolution of interior driven pulley 6 of continuous several times in identical cycle; Normally gather driven pulley 6 revolutions in three continuous time in identical cycle; Compare three numerical value successively,, and exceed certain scope if numerical value is continuous decline; Judge that then putty or resistance are excessive, make the slipping of the belt fault alarm.

Can find fault timely through the above-mentioned steps staff; And handle accordingly; Programmable Logic Controller can be done urgent shutdown to the transmission fault and handle, and makes things convenient for staff's follow-up work, and the rotating speed between reductor, driving pulley 5 and the driven pulley 6 is not simultaneously; Only need proportionally do a conversion, treatment step catches up with that to state flow process similar.

Claims

1. belt conveyer running state measuring and controlling device; The Programmable Logic Controller that comprises the mode of operation that is used to control said belt conveyer; It is characterized in that: an end of the driving pulley of said belt conveyer and driven pulley is installed with inductive means respectively; The frame of said belt conveyer is provided with inductive switch, and said inductive switch is corresponding with the inductive means position, and said inductive switch is electrically connected with Programmable Logic Controller.

2. belt conveyer running state measuring and controlling device as claimed in claim 1 is characterized in that: said inductive switch is near switch.

3. belt conveyer running state measuring and controlling device as claimed in claim 2 is characterized in that: said inductive means is fan-shaped tablet.