Anti-tearing detection device for belt conveyor

Abstract

An anti-tearing detection device for a belt conveyor comprises an ascending belt, an ascending belt carrier roller, a belt conveyor support and a controller, and further comprises flexible anti-tearing detection cloth, an edge pressing detachable fixing support and a pressure sensor. An edge-pressing detachable fixing bracket for bearing the flexible anti-tearing detection cloth and a pressure sensor of the edge-pressing detachable fixing bracket are arranged below the ascending belt; the flexible anti-tearing detection cloth and the ascending belt are arc-shaped and keep a certain distance; the two sides of the flexible anti-tearing detection cloth are fixed by the edge-pressing detachable fixing bracket, so that the mounting stability can be ensured; the pressure sensors are installed at the four corners of the flexible anti-tearing detection cloth respectively, the base is fixed to a belt conveyor support, pressure sensing detection alarming and flexible anti-tearing detection cloth fixing and supporting can be achieved, and the device has the advantages that the belt tearing condition can be rapidly, accurately and effectively detected, and whether the belt conveyor operates or not can be controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyors, in particular to an anti-tearing detection device for belt conveyors. Background Art

[0002] Belt conveyors are widely used in various industries such as mining, chemical industry, food and light industry due to their excellent continuous and large conveying capacity. At present, the selection of anti-tear detection and protection devices for belt conveyors generally adopts a simple detection device that installs a steel wire rope connected to the sensor at the bottom of the upward belt, and a high-cost detection device that installs a laser transmitter at the bottom of the upward belt.

[0003] In actual use, the upward belt of the belt conveyor may be cut by sharp objects to form torn gaps, resulting in damage to the belt and leakage of materials from the cracks, affecting the normal operation of the belt conveyor and causing varying degrees of economic losses. A simple detection device that installs a steel wire rope connected to the sensor at the bottom of the upward belt often fails to achieve the alarm and shutdown effect of anti-tear detection when the upward belt is torn to form small cracks, the material leakage is small, and the weight is light; a high-cost detection device that installs a laser transmitter at the bottom of the upward belt, during the operation of the belt conveyor, some fallen materials or dust cover the source of the laser transmitter and need to be cleaned regularly, affecting the detection effect of the anti-tear detection device.

[0004] In order to solve the above problems, some people have successively disclosed: Chinese patent CN211997565U "Anti-tear detection device for conveyor belt with steel wire rope core", which mainly consists of a touch rope, a touch limit switch, and a frame. At the drop point of the belt, located on the "V"-shaped back of the belt, a plurality of touch ropes with pre-tightened elastic force are arranged perpendicular to the running direction of the belt to maintain a gap with the back of the belt. The touch limit switch is installed on the belt frame and electrically connected to the control center. Its touch rod extends into the hollow of the ring connected to one end of the touch rope, and the other end of the touch rope is fixed on the frame on the opposite side of the ring. When the sharp corners of a foreign object penetrate the running belt, its tip hits the circular ring at the end of the touch rope, the touch limit switch is activated and transmits a signal to the control center to stop the belt, protecting the belt from being torn and damaged. It can solve the problem of using a belt conveyor to transport bulk goods, and the sharp corners of hard foreign objects in the goods are inserted into the belt with a steel wire rope core, tearing it and scrapping it, increasing maintenance costs and affecting normal production. However, when the belt is torn by a hard foreign object but the hard foreign object is not inserted into the belt and touches the steel wire rope core, the belt is torn and leaks ore, and there is a problem that the anti-tear detection and protection cannot be triggered; Chinese patent CN210285758U "A belt conveyor belt anti-tear detection device", the device mainly includes a groove-shaped support The detection plate is hingedly hung on the frame of the belt conveyor, and its lower end is matched with the clearance of the downward belt. The proximity switch installed on one end of the detection plate by the bracket is matched with the detection plate, which can detect the anti-tear of the belt and provide shutdown protection. However, when encountering strong winds outdoors, the detection plate may be blown by the wind, which will affect the accuracy of the proximity switch in detecting the position of the detection plate, resulting in false alarms and wrong shutdowns. Chinese patent CN206927194U "A new type of adjustable anti-tear detection device", the device mainly includes a base bracket, a detection bracket, an inclined baffle, an adjustable pressure leg, and a limit pressure leg. The detection bracket is provided with an inclined baffle under the belt roller, one of the two sides of the detection bracket is provided with an adjustable pressure leg, and the other side is provided with a limit pressure leg. The adjustable pressure leg adjusts the inclination angle of the detection bracket to keep the bracket stable, and the limit pressure leg drives the limit device to operate. When the belt is abnormal, the detection bracket tilts along the forward direction of the belt, driving the limit action and generating an alarm signal. It can be applied to different working conditions, but when too much material on the belt is scattered or falls onto the downward belt, the material will accidentally touch the inclined baffle and cause false alarm and error shutdown problems.

[0005] Therefore, it is of practical significance to develop an anti-tear detection device for belt conveyors. Summary of the invention

[0006] The task of the utility model is to overcome the existing deficiencies and provide a belt conveyor anti-tearing detection device, which can quickly, accurately and effectively detect the belt tearing situation and control whether the belt conveyor is running or not.

[0007] In order to complete the above tasks, this new type of use adopts the following technical solutions:

[0008] The invention discloses a belt conveyor anti-tear detection device, which comprises a belt conveyor bracket with an ascending belt, an ascending belt roller, and a controller, and also comprises a flexible anti-tear detection cloth, a detachable fixed bracket with a pressure edge, and a pressure sensor; the detachable fixed bracket with a pressure edge carrying the flexible anti-tear detection cloth and its pressure sensor are placed under the ascending belt; the flexible anti-tear detection cloth and the ascending belt are both in arc shape and maintain a certain distance; the two sides of the flexible anti-tear detection cloth are fixed with a detachable fixed bracket with a pressure edge to ensure installation stability; pressure sensors are respectively installed at the four corners of the flexible anti-tear detection cloth and the base is fixed on the belt conveyor bracket, which can play the role of pressure sensing detection alarm and flexible anti-tear detection cloth fixed support.

[0009] Compared with the prior art, the utility model has the following advantages or effects:

[0010] (1) Because of the combination of flexible anti-tear detection cloth and pressure sensor and the setting of pressure sensor, the scope that needs key anti-tear protection can be expanded. That is, when the belt is slightly torn and a small amount of material leaks, it can also sensitively and quickly make an anti-tear alarm and control the belt conveyor to stop immediately, thereby reducing the tearing and damage of the belt.

[0011] (2) At the same time, since the flexible tear-resistant detection cloth installed under the upward belt is set to the same arc shape as the upward belt and maintains a spacing, the fixed brackets on both sides of the flexible tear-resistant detection cloth are detachable by pressing the edges, so the tear-resistant detection effect can be improved, the installation and removal of the flexible tear-resistant detection cloth can be facilitated, and the damage of the flexible tear-resistant detection cloth caused by excessive leakage of materials can be avoided.

[0012] In short, the utility model can not only detect the belt tearing situation quickly, accurately and effectively, but also control whether the belt conveyor is running or not. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The specific structure of the utility model is given by the following drawings.

[0014] Figure 1 The figure is a schematic diagram of a belt conveyor anti-tear detection device proposed according to the utility model.

[0015] The symbols in the accompanying drawings represent:

[0016] 1. Upward belt 2. Upward belt roller 3. Flexible tear-resistant detection cloth 4. Detachable fixed bracket for edge pressing 5. Pressure sensor 6. Belt conveyor bracket

[0017] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. DETAILED DESCRIPTION

[0018] like Figure 1 As shown, according to a belt conveyor tear-proof detection device provided by the utility model, it includes an upward belt 1, an upward belt roller 2, a belt conveyor bracket 6, and a controller, and it also includes a flexible tear-proof detection cloth 3, a detachable pressure edge fixing bracket 4, and a pressure sensor 5; the detachable pressure edge fixing bracket 4 carrying the flexible tear-proof detection cloth 3 and its pressure sensor 5 are placed under the upward belt 1; the flexible tear-proof detection cloth 3 and the upward belt 1 are both arc-shaped and maintain a certain distance; the two sides of the flexible tear-proof detection cloth 3 are fixed with the detachable pressure edge fixing bracket 4 to ensure the installation stability; the four corners of the flexible tear-proof detection cloth 3 are respectively installed with pressure sensors 5 and the base is fixed on the belt conveyor bracket 6, which can play a role in pressure sensing detection Alarm and flexible anti-tear detection cloth 3 fixed support; when the upward belt 1 is cut and torn by sharp objects and material leakage occurs, the material will fall on the flexible anti-tear detection cloth 3, thereby triggering the pressure sensor 5 protection alarm signal, and the controller will immediately shut down for protection; the two ends of the installation position of the belt conveyor anti-tear detection device are kept at a certain distance from the upward belt roller 2, which can prevent the material remaining on the upward belt roller 2 during the operation of the belt conveyor from being thrown into the anti-tear protection device and causing false alarm; when the belt is torn and the material leaks into the flexible anti-tear detection cloth 3 and reaches a certain weight, the flexible anti-tear detection cloth 3 can be detached from the detachable fixed bracket 4 on both sides in time, which can prevent the flexible anti-tear detection cloth 3 from being damaged due to excessive leakage of material.

[0019] The utility model can further include:

[0020] The distance between the flexible tear-resistant detection cloth 3 and the upward belt 1 is about 5 cm.

[0021] The above embodiments are only preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention should be considered as equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A belt conveyor tear-proof detection device, comprising an upward belt (1), an upward belt roller (2), a belt conveyor support (6), and a controller, characterized in that It also includes a flexible tear-resistant detection cloth (3), a detachable fixing bracket (4) and a pressure sensor (5); the detachable fixing bracket (4) carrying the flexible tear-resistant detection cloth (3) and the pressure sensor (5) are placed below the upward belt (1); the flexible tear-resistant detection cloth (3) and the upward belt (1) are both in arc shape and maintain a certain distance; the detachable fixing bracket (4) is used to fix the two sides of the flexible tear-resistant detection cloth (3) to ensure installation stability; the pressure sensors (5) are respectively installed at the four corners of the flexible tear-resistant detection cloth (3) and the base is fixed on the belt conveyor bracket (6), which can play the role of pressure sensing detection alarm and flexible tear-resistant detection cloth (3) fixed support; when the upward belt (1) ) is cut or torn by a sharp object and material leakage occurs, the material will fall on the flexible tear-proof detection cloth (3), thereby triggering the pressure sensor (5) to send a protection alarm signal, and the controller will immediately shut down for protection; the two ends of the installation position of the belt conveyor tear-proof detection device are kept at a certain distance from the upward belt roller (2), which can prevent the material remaining on the upward belt roller (2) from being thrown into the tear-proof protection device during the operation of the belt conveyor and causing a false alarm; when the belt is torn and the material leaks into the flexible tear-proof detection cloth (3) and reaches a certain weight, the flexible tear-proof detection cloth (3) can be detached from the detachable fixing brackets (4) on both sides of the pressure edge in time, which can prevent the flexible tear-proof detection cloth (3) from being damaged due to excessive leakage of material.

2. The device according to claim 1, characterized in that The distance between the flexible tear-resistant detection cloth (3) and the upward belt (1) is about 5 cm.

Images