Conveyor belt detection device

Abstract

The present invention relates to the technical field of belt conveyors, and discloses a conveyor belt detection device. The conveyor belt detection device includes a falling object detection component and a core pulling detection component, wherein the falling object detection component is arranged below the conveyor belt, and includes a falling object collector arranged on a bracket, and the falling object collector can collect falling objects after the conveyor belt is torn and disconnect the switch of the conveyor belt; the core pulling detection component is arranged on the side of the conveyor belt carrying objects, and is electrically connected to the switch of the conveyor belt, and the core pulling detection component can disconnect the switch of the conveyor belt when it detects that the conveyor belt has a core pulling. The conveyor belt detection device provided in this embodiment of the present invention can not only be used to detect the conveyor belt after tearing, but also start from the cause of the conveyor belt tearing, and is used to detect whether the core pulling problem occurs before the conveyor belt is torn, and can timely detect and shut down the conveyor belt before the conveyor belt is torn, effectively avoiding the danger and loss caused by the conveyor belt tearing.

Description

Technical Field

[0001] The invention relates to the technical field of belt conveyors, and in particular to a conveyor belt detection device. Background Art

[0002] The belt conveyor in coal mines has many advantages such as long distance, continuous transportation, reliable operation, and easy automation. It has become the main transportation equipment for digital mines. In order to meet the production needs of "high-yield and high-efficiency" digital mines, the current belt conveyor has been developing in the direction of "long distance, high belt speed, large transportation volume, and high power". The conveyor belt is both a traction mechanism and a bearing structure in the belt conveyor. It runs through the entire length of the belt conveyor. It is used in large quantities and has high costs, accounting for about 65% of the cost of the conveyor. For the conveyor belt, tearing is a very destructive form of damage. Once a tearing accident occurs, it can be as short as a few meters, as long as dozens of meters, or even the entire conveyor belt is completely destroyed. The conveyor belt worth tens of thousands or even hundreds of thousands of yuan will be completely destroyed within a few minutes, causing huge economic losses.

[0003] At present, the detection of conveyor belts mostly adopts the electrode detection method or the electronic scale detection method. The principle is to detect the dropped objects after the conveyor belt is torn. This detection method can only be used to detect the situation that the conveyor belt has been torn, but cannot detect the core pulling that occurs before the conveyor belt is torn.

[0004] Therefore, there is an urgent need for a conveyor belt detection device to solve the above problems. Summary of the invention

[0005] Based on the above, the object of the present invention is to provide a conveyor belt detection device, which can detect the tearing of the conveyor belt and the core pulling before the conveyor belt is torn.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A conveyor belt detection device, comprising:

[0008] A falling object detection assembly is arranged below the conveyor belt, and comprises a falling object collector arranged on a bracket, wherein the falling object collector is configured to collect falling objects after the conveyor belt is torn and disconnect the switch of the conveyor belt;

[0009] The core-pulling detection component is arranged on a side of the conveyor belt carrying the object and is electrically connected to the switch of the conveyor belt. The core-pulling detection component is configured to disconnect the switch of the conveyor belt when it is detected that the conveyor belt has pulled a core.

[0010] As a preferred solution of a conveyor belt detection device, the falling object detection assembly includes a detection box electrically connected to a switch of the conveyor belt, the detection box is arranged on the bracket, and the falling object collector is arranged on the detection box.

[0011] As a preferred solution of a conveyor belt detection device, one of the detection box and the bracket is provided with a dovetail groove, and the other is provided with a dovetail protrusion, and the dovetail protrusion is placed in the dovetail groove to connect the detection box and the bracket.

[0012] As a preferred solution of a conveyor belt detection device, the falling object detection assembly further includes:

[0013] A support rod, one end of which is rotatably connected to the falling object collector, and the other end of which is connected to the detection box;

[0014] A swing rod has one end connected to the fallen object collector. The swing rod can rotate with the fallen object collector after the fallen object collector collects the fallen objects to disconnect the switch of the conveyor belt.

[0015] As a preferred solution of a conveyor belt detection device, a detection switch electrically connected to a switch of the conveyor belt is provided in the detection box, and the other end of the swing rod is placed in the detection box and selectively contacts the detection switch.

[0016] As a preferred solution of a conveyor belt detection device, the core pulling detection assembly includes:

[0017] A balancing bar, arranged above the side of the conveyor belt carrying goods;

[0018] The baffle rod connecting frame is rotatably connected to the bracket and is connected to the falling object collector and the balancing baffle rod. The baffle rod connecting frame can drive the falling object collector to rotate to disconnect the switch of the conveyor belt when the balancing baffle rod detects the core pulling of the conveyor belt.

[0019] As a preferred solution of the conveyor belt detection device, it also includes a scratch detection component, which is arranged at the drop port above the conveyor belt and is electrically connected to the switch of the conveyor belt. The scratch detection component is configured to disconnect the switch of the conveyor belt when a foreign object is detected at the drop port.

[0020] As a preferred solution of a conveyor belt detection device, the scratch detection component includes:

[0021] A fixed rod, on which a pressure switch electrically connected to the switch of the conveyor belt is provided;

[0022] A pressure retaining rod is elastically connected to the fixing rod through an elastic member. When the pressure retaining rod is squeezed by the foreign matter, it can trigger the pressure switch to disconnect the switch of the conveyor belt.

[0023] As a preferred solution of the conveyor belt detection device, the scratch detection assembly further includes a pressure adjustment nut to adjust the preload force of the elastic member between the fixing rod and the pressure retaining rod.

[0024] As a preferred solution of a conveyor belt detection device, the elastic member is a spring, one end of which abuts against the fixing rod, and the other end of which abuts against the pressure blocking rod.

[0025] The beneficial effects of the present invention are as follows: the conveyor belt detection device provided in this embodiment can not only be used to detect the conveyor belt after tearing, but also start from the cause of the conveyor belt tearing, to detect whether the conveyor belt has a core pulling problem before the conveyor belt is torn, and can timely detect whether the conveyor belt has a core pulling problem before the conveyor belt is torn and shut down the conveyor belt in time, effectively avoiding the danger and loss caused by the conveyor belt tearing. Specifically, the falling object detection component receives the falling objects after the conveyor belt is torn through the falling object collector to disconnect the switch of the conveyor belt; the core pulling detection component disconnects the switch of the conveyor belt by detecting the core pulling of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0027] Figure 1 is a schematic diagram of a conveyor belt detection device provided in a specific embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of a falling object detection assembly provided in a specific embodiment of the present invention;

[0029] Figure 3 is a schematic diagram of a detection switch being triggered provided by a specific embodiment of the present invention;

[0030] Figure 4 is a schematic diagram of a core pulling detection assembly provided in a specific embodiment of the present invention;

[0031] Figure 5 It is a schematic diagram of a scratch detection component provided in a specific embodiment of the present invention.

[0032] In the figure:

[0033] 10- conveyor belt; 20- bracket; 30- drop opening;

[0034] 1-falling object detection assembly; 11-falling object collector; 111-flanging edge; 12-detection box; 121-dovetail groove; 122-detection switch; 123-long through hole; 124-connection terminal; 13-support rod; 14-swing rod;

[0035] 2-core pulling detection assembly; 21-balance baffle rod; 22-baffle rod connecting frame;

[0036] 3-scratch detection assembly; 31-fixing rod; 32-pressure stop rod; 33-elastic member; 34-pressure adjustment nut; 35-pressure switch. DETAILED DESCRIPTION

[0037] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0038] like Figure 1-Figure 5 As shown, this embodiment provides a conveyor belt detection device for a belt conveyor, the device includes a falling object detection component 1 and a core pulling detection component 2, wherein the falling object detection component 1 is arranged under the conveyor belt 10, including a falling object collector 11 arranged on the bracket 20, the falling object collector 11 can collect falling objects after the conveyor belt 10 is torn and disconnect the switch of the conveyor belt 10; the core pulling detection component 2 is arranged on the side of the conveyor belt 10 that carries the object, and is electrically connected to the switch of the conveyor belt 10, and the core pulling detection component 2 can disconnect the switch of the conveyor belt 10 when detecting that the conveyor belt 10 has pulled a core.

[0039] The conveyor belt detection device provided in this embodiment can not only be used to detect the conveyor belt 10 after tearing, but also start from the tearing cause of the conveyor belt 10, to detect whether the conveyor belt 10 has a core pulling problem before tearing, and can timely detect whether the conveyor belt 10 has a core pulling before the conveyor belt 10 is torn and shut down the conveyor belt 10 in time, effectively avoiding the danger and loss caused by the tearing of the conveyor belt 10. Specifically, the falling object detection component 1 receives the falling objects after the conveyor belt 10 is torn through the falling object collector 11 to disconnect the switch of the conveyor belt 10; the core pulling detection component 2 disconnects the switch of the conveyor belt 10 by detecting the core pulling of the conveyor belt 10.

[0040] like Figure 1 and Figure 2As shown, the falling object detection assembly 1 includes a detection box 12 electrically connected to the switch of the conveyor belt 10, the detection box 12 is arranged on the bracket 20, and the falling object collector 11 is arranged on the detection box 12. One of the detection box 12 and the bracket 20 is provided with a dovetail groove 121, and the other is provided with a dovetail protrusion, and the dovetail protrusion is placed in the dovetail groove 121 to connect the detection box 12 and the bracket 20. In this embodiment, the dovetail groove 121 is provided on the detection box 12, and the dovetail protrusion is provided on the bracket 20. No other tools are required for the insertion of the dovetail groove 121 and the dovetail protrusion, making installation and replacement more convenient and time-saving.

[0041] Furthermore, the falling object detection assembly 1 also includes a support rod 13 and a swing rod 14, one end of the support rod 13 is rotatably connected to the falling object collector 11, and the other end is connected to the detection box 12; one end of the swing rod 14 is connected to the falling object collector 11, and the swing rod 14 can rotate with the falling object collector 11 after the falling object collector 11 collects the falling objects to disconnect the switch of the conveyor belt 10; a detection switch 122 electrically connected to the switch of the conveyor belt 10 is provided in the detection box 12, and the detection switch 122 is installed in the detection box 12 through a switch mounting frame; the other end of the swing rod 14 is placed in the detection box 12 and selectively contacts the detection switch 122, and one end of the detection box 12 is provided with a wiring terminal 124 connected to the detection switch 122, and the other end of the wiring terminal 124 is electrically connected to the switch of the conveyor belt 10.

[0042] Specifically, the falling object collector 11 is configured as an arched collecting plate, the support rod 13 and the swing rod 14 are both connected to the inner side of the arched collecting plate, and the arc-shaped sides of the arched collecting plate are provided with flanges 111 facing the conveyor belt 10, and the collecting plate extends along the width direction of the conveyor belt 10 to ensure that the falling objects at various places in the width direction of the conveyor belt 10 slide through the outer side of the arched collecting plate into the flanges 111 to achieve the collection of the falling objects. The detection box 12 is provided with an elongated through hole 123, and the other end of the swing rod 14 is placed in the detection box 12 through the elongated through hole 123, which can effectively prevent the swing rod 14 from interfering with the detection box 12 when swinging.

[0043] Since the object collector 11 is balanced when there is no fallen object, when the fallen object falls into the flange 111 from the tear of the conveyor belt 10, the balance of the object collector 11 is broken, and the object collector 11 will drive the swing rod 14 to rotate a certain angle with the support rod 13, such as Figure 3 As shown, the rotated swing rod 14 triggers the detection switch 122, thereby disconnecting the switch of the conveyor belt 10 and shutting down the conveyor belt 10.

[0044] Usually, the core of the conveyor belt 10 will be pulled out before it is torn. In order to detect the risk of tearing before the conveyor belt 10 is torn, the conveyor belt detection device is provided with a core pulling detection component 2. Figure 1 and Figure 4As shown, the core pulling detection assembly 2 includes a balancing baffle rod 21 and a baffle rod connecting frame 22. The baffle rod connecting frame 22 is rotatably connected to the bracket 20 and is connected to the falling object collector 11 and the balancing baffle rod 21. The baffle rod connecting frame 22 can drive the falling object collector 11 to rotate to disconnect the switch of the conveyor belt 10 when the balancing baffle rod 21 detects the core pulling of the conveyor belt 10.

[0045] Since the core pulling of the conveyor belt 10 mostly occurs on the side of the carried object, the balance bar 21 is arranged above the side of the conveyor belt 10 carrying the goods. Furthermore, the core pulling of the conveyor belt 10 mostly occurs along the conveying direction of the conveyor belt 10, so the balance bar 21 is arranged perpendicular to the conveying direction of the conveyor belt 10 to ensure that the core pulling of the conveyor belt 10 can hit the balance bar, effectively avoiding missed detection.

[0046] Since the object collector 11 is balanced when there is no falling object, when the core of the conveyor belt 10 hits the balance bar 21, the balance bar 21 will drive the bar connecting frame 22 to rotate along the bracket 20. Since the bar connecting frame 22 is connected to the object collector 11, the balance of the object collector 11 will be broken, and the object collector 11 will drive the swing rod 14 to rotate a certain angle with the support rod 13, such as Figure 3 As shown, the rotated swing rod 14 triggers the detection switch 122, thereby disconnecting the switch of the conveyor belt 10 and shutting down the conveyor belt 10.

[0047] It is worth noting that when the conveyor belt 10 is an annular conveyor belt, although the conveyor belt 10 at the bottom does not carry goods, there is still a risk of core pulling, so two balance bars 21 are provided, one is provided above the upper conveyor belt 10, and the other is provided below the lower conveyor belt 10. The falling object detection component 1 is for detecting falling objects, so the falling object collector 11 only needs to be provided below the upper conveyor belt 10. In addition, according to the research on the tearing position of the conveyor belt 10, the falling object detection component 1 and the core pulling detection component 2 are provided within 3010 meters from the drop port, so that the conveyor belt 10 can be detected more timely and effectively.

[0048] During the transportation process of the belt conveyor, when there is a long rod-shaped foreign object at the drop port 30 that cannot fall normally, it is easy to cause pressure scratches and tearing and penetration scratches and tearing of the conveyor belt 10. According to the above fault phenomenon, if Figure 1 As shown, the conveyor belt detection device is also provided with a scratch detection component 3 at the drop port 30 above the conveyor belt 10. The scratch detection component 3 is electrically connected to the switch of the conveyor belt 10. The scratch detection component 3 can disconnect the switch of the conveyor belt 10 when foreign objects are detected at the drop port 30.

[0049] Specifically, Figure 1 and Figure 5As shown, the scratch detection assembly 3 includes a fixed rod 31 and a pressure stopper rod 32 elastically connected to the fixed rod 31 through an elastic member 33. The fixed rod 31 is provided with a pressure switch 35 electrically connected to the switch of the conveyor belt 10. The pressure stopper rod 32 can trigger the pressure switch 35 to disconnect the switch of the conveyor belt 10 when squeezed by foreign matter. More specifically, since long rod-shaped foreign matter is easy to be stuck in the blanking port 30 along the conveying direction of the conveyor belt 10, the pressure stopper rod 32 and the fixed rod 31 are arranged in a direction perpendicular to the conveying direction of the conveyor belt 10 and extend along the width direction of the conveyor belt 10 to effectively avoid missed detection.

[0050] When a long rod-shaped foreign object is stuck in the drop port 30 and cannot fall down, since objects continue to fall out of the drop port 30, the continuously falling objects will continuously generate pressure on the long rod-shaped foreign object. When the pressure increases to the point where the elastic member 33 between the fixed rod 31 and the pressure stop rod 32 is deformed, the pressure stop rod 32 will trigger the pressure switch 35 on the fixed rod 31, thereby disconnecting the switch of the conveyor belt 10 and shutting down the conveyor belt 10.

[0051] Preferably, the scratch detection assembly 3 further includes a pressure adjustment nut 34. The elastic member 33 is configured as a spring, one end of which abuts against the fixed rod 31, and the other end abuts against the pressure stop rod 32. The pressure adjustment nut 34 is disposed on a side of the pressure stop rod 32 away from the fixed rod 31. By screwing the pressure adjustment nut 34, the distance between the pressure stop rod 32 and the fixed rod 31 can be changed, thereby adjusting the preload force of the spring between the fixed rod 31 and the pressure stop rod 32, so that the scratch detection assembly 3 can be used for the detection of different foreign bodies, thereby increasing the application range of the conveyor belt detection device.

[0052] The conveyor belt detection device provided in this embodiment can detect the tearing of the conveyor belt 10, the core pulling of the conveyor belt 10 and the long rod-shaped foreign objects at the blanking port 30. When an abnormality occurs, the conveyor belt 10 will be shut down, which can effectively avoid the losses and dangers caused by the tearing of the conveyor belt 10. It has the characteristics of high applicability, reliable detection and long service life.

[0053] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A conveyor belt detection device, characterized in that: include: A falling object detection assembly (1) is arranged below the conveyor belt (10), comprising a falling object collector (11) arranged on a bracket (20), wherein the falling object collector (11) is configured to collect falling objects after the conveyor belt (10) is torn and disconnect a switch of the conveyor belt (10); A core pulling detection component (2) is arranged on a side of the conveyor belt (10) carrying an object and is electrically connected to a switch of the conveyor belt (10); the core pulling detection component (2) is configured to disconnect the switch of the conveyor belt (10) when it is detected that the conveyor belt (10) has pulled a core; The falling object detection assembly (1) comprises a detection box (12) electrically connected to a switch of the conveyor belt (10), the detection box (12) being arranged on the bracket (20), and the falling object collector (11) being arranged on the detection box (12); The core pulling detection component (2) comprises: A balancing bar (21) is arranged above the side of the conveyor belt (10) carrying goods; a barrier rod connecting frame (22) rotatably connected to the bracket (20) and connected to the debris collector (11) and the balancing barrier rod (21); the barrier rod connecting frame (22) can drive the debris collector (11) to rotate to disconnect the switch of the conveyor belt (10) when the balancing barrier rod (21) detects the core pulling of the conveyor belt (10); The falling object detection component (1) further comprises: A support rod (13), one end of which is rotatably connected to the debris collector (11), and the other end of which is connected to the detection box (12); A swing rod (14), one end of which is connected to the fallen object collector (11); the swing rod (14) can rotate together with the fallen object collector (11) to disconnect the switch of the conveyor belt (10) after the fallen objects are collected by the fallen object collector (11); A detection switch (122) electrically connected to a switch of the conveyor belt (10) is arranged in the detection box (12); the other end of the swing rod (14) is placed in the detection box (12) and selectively contacts the detection switch (122).

2. The conveyor belt detection device according to claim 1, characterized in that: One of the detection box (12) and the bracket (20) is provided with a dovetail groove (121), and the other is provided with a dovetail protrusion, and the dovetail protrusion is placed in the dovetail groove (121) to connect the detection box (12) and the bracket (20).

3. The conveyor belt detection device according to claim 1, characterized in that: It also comprises a scratch detection component (3), which is arranged at a material drop opening (30) above the conveyor belt (10) and is electrically connected to a switch of the conveyor belt (10); the scratch detection component (3) is configured to disconnect the switch of the conveyor belt (10) when a foreign object is detected at the material drop opening (30).

4. The conveyor belt detection device according to claim 3, characterized in that: The scratch detection component (3) comprises: a fixed rod (31) on which a pressure switch electrically connected to a switch of the conveyor belt (10) is provided; A pressure retaining rod (32) is elastically connected to the fixing rod (31) via an elastic member (33); the pressure retaining rod (32) can trigger the pressure switch to disconnect the conveyor belt (10) when squeezed by the foreign matter.

5. The conveyor belt detection device according to claim 4, characterized in that: The scratch detection assembly (3) further comprises a pressure adjustment nut (34) for adjusting the pre-tightening force of the elastic member (33) between the fixing rod (31) and the pressure blocking rod (32).

6. The conveyor belt detection device according to claim 4, characterized in that: The elastic member (33) is a spring, one end of which abuts against the fixing rod (31) and the other end of which abuts against the pressure blocking rod (32).

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