CN217172144U - Mechanical belt anti-tearing protection device - Google Patents

Abstract

The utility model provides a mechanical type belt anti-tear protection device, including support frame, pressure sensor, the take-up (stock) pan, the PLC controller, open the stop switch of being connected with belt drive motor electricity, the take-up pan passes through the support frame setting in belt conveyor below, the take-up pan is the rectangle box body, box body upper end opening, the box body upper end is provided with the standing groove, set up the wire mesh board in the standing groove, the width and the standing groove width of wire mesh board match, length is 2-5cm than the standing groove is short, wire mesh board side wall sets up the tablet, pressure sensor sets up between support frame and take-up pan, pressure sensor is connected with the PLC controller electricity, vibration sensor sets up at the take-up pan lateral wall, just to the tablet, vibration sensor is connected with the PLC controller electricity, the PLC controller opens the stop switch electricity and is connected. The utility model discloses carry out pressure measurement and vibration detection simultaneously, detect in time accurate reliable, can prevent that the belt from tearing on a large scale, prevent that the accident mine is big.

Description

Mechanical belt anti-tearing protection device

Technical Field

The utility model belongs to the technical field of the belt conveyor, especially, relate to a mechanical type belt anti-tear protection device.

Background

The belt conveyor is mainly used for transferring coal materials and is a vital main conveying device in a raw coal production system. However, in the production process, underground abandoned anchor cables, anchor rods, steel wires, large ironware or large pieces of gangue are often mixed with raw coal and are conveyed to a ground storage and transportation system through a belt conveyor. In the transshipment throwing movement, if the edges and corners of the mixed sundries are sharp, the belt conveyor can be pierced, and various ironware and sundries have different shapes and different lengths, so that the ironware is easy to be stuck after the adhesive tape is pierced. At the moment, the punctured adhesive tape continues to move forwards, the clamped ironware can directly cause the longitudinal tearing of the belt conveyor, and the belt can be directly scrapped if the belt conveyor is not stopped in time. However, the time for replacing the belt is often more than 48 hours, which not only causes serious direct economic loss, but also influences the stable and smooth production.

Disclosure of Invention

The utility model aims at providing a mechanical type belt anti-tear protection device is torn when the belt, utilizes the material of leaking down to carry out pressure measurement and vibration detection simultaneously, detects timely accurate reliable, can prevent that the belt from tearing on a large scale, and the prevention accident mine is big.

The utility model provides a mechanical belt anti-tearing protection device, which comprises a support frame, a pressure sensor, a receiving disc, a PLC controller and a start-stop switch electrically connected with a belt driving motor, wherein the receiving disc is arranged below the belt conveyor through the support frame, the receiving disc is a rectangular box body, the upper end of the box body is opened, a placing groove is arranged at the upper end of the box body, an iron wire mesh plate is arranged in the placing groove, the width of the iron wire mesh plate is matched with the width of the placing groove, the length of the iron wire mesh plate is 2-5cm shorter than that of the placing groove, an induction plate is arranged on the side wall of the iron wire mesh plate, the pressure sensor is arranged between the support frame and the receiving disc, the pressure sensor is electrically connected with the PLC controller and used for sensing whether a heavy object falls on the receiving disc or not, a vibration sensor is arranged on the side wall of the receiving disc, the vibration sensor is opposite to the induction plate, the vibration sensor is electrically connected with the PLC controller, the PLC is electrically connected with the start-stop switch and used for controlling the start-stop of the belt conveyor.

Furthermore, the placing groove is defined by step surfaces arranged inside the upper ends of the four side walls of the box body.

Further, the output of the PLC is in wireless connection with a control center host.

Further, the vibration sensor is an eddy current type displacement sensor.

The utility model discloses following beneficial effect has: the utility model discloses utilize pressure sensor and vibration sensor to detect simultaneously, when the belt is damaged, the material falls into the take-up (stock) pan through the wire netting, and the take-up (stock) pan is pressurized, and pressure sensor signals, and PLC control opens and stops the switch and close the motor and trigger the alarm; if there is big lump material in the material, the long member, blocking object card such as ironware, probably lead to the sticky tape vertically to tear, at this moment, because the belt is still advancing, make blocking object reaction in the wire mesh board, the tablet that sets up on the wire mesh board moves forward simultaneously, vibration sensor transmits the displacement signal of the tablet that detects to the PLC controller, PLC control opens and stops the switch and closes the motor and trigger the alarm, post personnel inspect this belt immediately, clear away blocking object and reset the tablet, the alarm is relieved this moment, restart belt. The device has the advantages of high detection speed, high accuracy, simple and convenient operation, and dual detection and mutual evidence-printing effects, so as to prevent detection omission and misjudgment.

Drawings

Fig. 1 shows the overall schematic diagram of the mechanical belt anti-tearing protection device of the utility model.

Fig. 2 is a schematic diagram of the installation of the wire netting of the mechanical belt anti-tearing protection device.

Fig. 3 shows the installation of the induction plate and the vibration sensor of the mechanical belt anti-tearing protection device of the utility model.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the following explains the present solution by way of specific embodiments and with reference to the accompanying drawings. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in fig. 1-3, the utility model provides a mechanical type belt anti-tear protection device, including support frame 2, pressure sensor 4, vibration sensor 5, take-up (stock) pan 1, PLC controller, open with belt drive motor electricity is connected stop the switch.

The take-up (1) is arranged below the belt conveyor through the support frame (2), the width of the take-up (1) is equal to that of a belt, and all-dimensional detection is guaranteed to prevent omission. The take-up reel 1 is a rectangular box body, the upper end of the box body is open, a placing groove is formed in the upper end of the box body and is defined by step faces arranged inside the upper ends of four side walls of the box body, an iron wire mesh plate 3 is arranged in the placing groove, the width of the iron wire mesh plate 3 is matched with the width of the placing groove, the length of the iron wire mesh plate is 2-5cm shorter than that of the placing groove, and an induction plate 6 is arranged on the side wall of the iron wire mesh plate 3.

Pressure sensor 4 sets up between support frame 2 and take-up pan 1, pressure sensor 4 is connected with the PLC controller electricity, whether the heavy object drops for responding to take-up pan 1, vibration sensor 5 is eddy current type displacement sensor, vibration sensor 5 sets up at take-up pan 1 lateral wall, just to tablet 6, vibration sensor 5 is connected with the PLC controller electricity, a displacement for responding to wire net board 3, PLC controller output with open and stop the on-off electricity and be connected, a start-stop for controlling belt conveyor, PLC output simultaneously with control center host computer wireless connection, make the center host computer in time send alarm signal.

The working principle is as follows: the utility model discloses utilize pressure sensor 4 and vibration sensor 5 to detect simultaneously, when the belt is damaged, the material falls into take-up (stock) pan 1 through wire mesh board 3, take-up (stock) pan 1 pressurized, pressure sensor 4 signals, PLC control opens and stops the switch and closes the motor and trigger the alarm; if there is big lump material in the material, long member, blocking objects such as ironware, probably lead to the belt vertically to tear, at this moment, because the belt is still advancing, make blocking object reaction on wire net board 3, make it move forward, the tablet 6 that sets up on wire net board 3 moves forward simultaneously, vibration sensor 5 transmits the displacement signal of tablet 6 that detects to the PLC controller, PLC control opens and stops switch and closes the motor and trigger the alarm, post personnel inspect this belt immediately, clear away blocking object and reset tablet 6, the alarm is relieved this moment, restart the belt.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims (4)

1. A mechanical belt anti-tearing protection device is characterized by comprising a support frame, a pressure sensor, a take-up pan, a PLC controller and a start-stop switch electrically connected with a belt driving motor,

the receiving tray is arranged below the belt conveyor through a support frame, the receiving tray is a rectangular box body, the upper end of the box body is provided with an opening, the upper end of the box body is provided with a placing groove, an iron wire mesh plate is arranged in the placing groove, the width of the iron wire mesh plate is matched with the width of the placing groove, the length of the iron wire mesh plate is 2-5cm shorter than that of the placing groove, the side wall of the iron wire mesh plate is provided with an induction plate,

the pressure sensor is arranged between the support frame and the material receiving disc, is electrically connected with the PLC controller and is used for sensing whether a heavy object falls on the material receiving disc or not,

the side wall of the receiving tray is provided with a vibration sensor which is right opposite to the induction plate, the vibration sensor is electrically connected with the PLC controller and used for inducing the displacement of the wire mesh plate,

the PLC is electrically connected with the start-stop switch and is used for controlling the start-stop of the belt conveyor.

2. The mechanical belt tearing-proof protection device as claimed in claim 1, wherein the placement groove is defined by a step surface arranged inside the upper ends of the four side walls of the box body.

3. The mechanical belt anti-tear protection device as claimed in claim 1, wherein the PLC output is wirelessly connected to a control center host.

4. The mechanical belt tear protection feature of claim 1, wherein said vibration sensor is an eddy current displacement sensor.

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