Multi-sensor module for detecting longitudinal tearing of belt

Abstract

The utility model relates to a multi-sensor module for detecting longitudinal tearing of a belt. The module comprises an installation shell, a camera and a laser transmitter, the laser transmitter is connected in the installation shell, the camera is installed in the installation shell and arranged on one side of the laser transmitter, and one side of the camera and one side of the laser transmitter are each provided with an anti-dirt mechanism; the anti-dirt mechanism comprises a shielding piece and a fan assembly, and the shielding piece prevents dirt from dripping onto the camera and the laser transmitter; according to the module, the peripheries of the camera and the laser transmitter are shielded by arranging the shielding pieces so as to shield most mud drops, and the mud drops are prevented from dropping to the detection window from a neutral gap and an irradiation gap reserved by the two groups of shielding pieces through the cooperation of the fan assembly, so that the precision of the belt longitudinal tear detector is improved, and the detection efficiency is improved. Dust and muddy water contamination of the detection window under severe working conditions is avoided, and the occurrence of a false alarm tearing event is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt detection, and in particular relates to a multi-sensor module for detecting longitudinal tearing of belts. Background Art

[0002] During the operation of the belt conveyor, due to foreign objects, deviation, hardware damage and other reasons, it is easy to cause continuous longitudinal tearing of the belt. If it is not discovered in time, it often causes the entire belt to be scrapped, resulting in significant economic losses. Therefore, a belt longitudinal tear detector is used to detect the belt during use.

[0003] Belt conveyors are often used in transfer corridors, mines, outdoor rainwater, humid material environments and other environments. Different application environments have one or more characteristics such as heavy dust, humidity, mud, rain and so on, which may cause mud droplets or dust accumulation on the camera and laser emitter of the belt longitudinal tear detector, affecting the detection accuracy of the belt longitudinal tear detector, thereby causing false alarms of tear events. Summary of the Invention

[0004] The purpose of this utility model is to provide a module with simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A multi-sensor module for detecting longitudinal belt tears includes a mounting housing, a camera, and a laser emitter. The laser emitter is connected to the mounting housing. The camera is mounted within the mounting housing and is located on one side of the laser emitter. Both sides of the camera and the laser emitter are provided with anti-mud and dirt mechanisms.

[0007] The anti-mud and dirt mechanism includes a shielding member and a fan assembly. The shielding member prevents mud and dirt from dripping onto the camera and the laser emitter. The shielding member arranged on one side of the camera is provided with an idle gap, and the shielding member arranged on one side of the laser emitter is reserved with an irradiation gap. The laser emitted by the laser emitter passes through the irradiation gap and irradiates the lower surface of the upper belt. The camera captures the image of the lower surface of the upper belt after being irradiated by the laser from the idle gap. The two groups of fan assemblies are arranged on one side of the two groups of shielding members and correspond to the idle gap and the irradiation gap respectively to prevent mud and dirt from dripping onto the camera and the laser emitter.

[0008] As a further optimization solution of the present invention, the air inlet ends of the fan assemblies are all arranged downward.

[0009] As a further optimization scheme of the present invention, a mounting seat 1 is fixedly connected to the inner wall of one side of the mounting shell, one end of the mounting seat 1 extends to the upper surface of the mounting shell, the camera is arranged at an angle and connected to the end of the mounting seat 1 located on the outside of the mounting shell, and a mounting seat 2 is connected to the side of the mounting shell away from the mounting seat 1. The laser emitter is connected to the mounting seat 2, and the surface formed by the laser emitted by the laser emitter is perpendicular to the lower surface of the upper belt. A mounting groove is provided on the upper surface of the mounting shell and corresponds to the emitting end of the laser emitter. A glass plate is fixedly connected in the mounting groove, and the laser emitted by the laser emitter is irradiated to the lower surface of the upper belt through the glass plate.

[0010] As a further optimization solution of the present invention, the anti-mud and dirt mechanism provided on one side of the camera is the first anti-mud component, and the anti-mud and dirt mechanism close to the laser emitter is the second anti-mud component;

[0011] The shielding member of the first anti-mud assembly includes a protective cover and a baffle 1, the protective cover is connected to the upper surface of the mounting shell and covers the camera, the baffle 1 is connected to one side of the protective cover, and a through groove is opened on the surface of the baffle 1, which is an idle gap. The fan assembly of the first anti-mud assembly is connected to the mounting shell, and the blowing end of the fan assembly is located on the side corresponding to the protective cover and the baffle 1;

[0012] The shielding member of the second anti-mud component includes two groups of baffles 2, which are respectively arranged on both sides of the glass plate and fixedly connected to the upper surface of the mounting shell. The gap reserved between the two groups of baffles 2 is the irradiation gap. The fan component of the second anti-mud component is connected to the mounting shell, and the blowing end of the fan component is arranged on one side of the irradiation gap.

[0013] As a further optimization solution of the present invention, the neutral gap is arranged in a "V" shape.

[0014] As a further optimization scheme of the present invention, a purging mechanism is provided in the mounting shell for cleaning dust accumulated on the glass plate and the shooting end face of the camera. The purging mechanism includes an air supply assembly, a gas duct and a nozzle. Two groups of nozzles are provided. The air supply assembly is installed in the mounting shell. The air inlet end of the gas duct is connected to the air outlet end of the air supply assembly. The gas duct is forked to form two air outlet ends. Both air outlet ends of the gas duct extend to the outside of the mounting shell. The two groups of nozzles are respectively connected to the two air outlet ends of the gas duct. The nozzles are respectively provided on one side of the camera and one side of the glass plate.

[0015] As a further optimization scheme of the present invention, the gas supply assembly includes a constant pressure gas tank and a timing switch valve. The constant pressure gas tank is connected to the inner wall of the mounting shell, the air inlet end of the gas conduit is connected to the air outlet end of the constant pressure gas tank, and the timing switch valve is connected to one end of the gas conduit close to the constant pressure gas tank.

[0016] As a further optimization solution of the present invention, the air inlet end of the constant pressure gas tank is connected to an external high-pressure gas source.

[0017] The beneficial effects of the present invention are as follows: the present invention blocks the surroundings of the camera and the laser emitter by setting a shielding member to block most of the mud droplets, and through the cooperation of the fan assembly, prevents the mud droplets from dripping from the idle gaps and irradiation gaps reserved by the two sets of shielding members to the detection window (the irradiation end face of the camera and the glass plate), thereby improving the accuracy of the belt longitudinal tear detector, avoiding dust and mud and water contamination of the detection window under harsh working conditions, and preventing the occurrence of false alarms of tearing events. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the installation shell of the utility model;

[0020] Figure 3 It is a structural diagram of the purge mechanism of the utility model;

[0021] Figure 4 This is an enlarged schematic diagram of the nozzle position of the present invention;

[0022] Figure 5 It is a schematic diagram of the installation position of the installation shell of the utility model.

[0023] In the figure: 1. Mounting shell; 101. Mounting base 1; 102. Mounting base 2; 2. Camera; 3. Laser emitter; 4. Anti-mud and dirt mechanism; 41. Shielding member; 411. Protective cover; 412. Baffle 1; 413. Baffle 2; 42. Fan assembly; 5. Glass plate; 6. Purge mechanism; 61. Air supply assembly; 611. Constant pressure gas tank; 612. Timer switch valve; 62. Gas duct; 63. Nozzle; 7. Idle gap; 8. Irradiation gap. DETAILED DESCRIPTION

[0024] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0025] refer to Figure 1 and Figure 2The multi-sensor module for detecting longitudinal tearing of a belt comprises a mounting shell 1, a camera 2 and a laser emitter 3. The laser emitter 3 is connected to the mounting shell 1. The camera 2 is mounted in the mounting shell 1 and is arranged on one side of the laser emitter 3. An anti-mud and dirt mechanism 4 is provided on one side of the camera 2 and one side of the laser emitter 3.

[0026] The anti-mud and dirt mechanism 4 includes a shielding member 41 and a fan assembly 42. The shielding member 41 prevents mud and dirt from dripping onto the camera 2 and the laser emitter 3. The shielding member 41 on one side of the camera 2 is provided with an idle gap 7, and the shielding member 41 on one side of the laser emitter 3 is reserved with an irradiation gap 8. The laser emitted by the laser emitter 3 passes through the irradiation gap 8 and irradiates the lower surface of the upper belt. The camera 2 captures the image of the lower surface of the upper belt after being irradiated by the laser from the idle gap 7. Two groups of fan assemblies 42 are arranged on one side of the two groups of shielding members 41 and correspond to the idle gap 7 and the irradiation gap 8 respectively to prevent mud and dirt from dripping onto the camera 2 and the laser emitter 3.

[0027] It should be noted that the shielding member 41 is used to block most of the mud drops in the environment, and the fan assembly 42 can prevent the mud drops from dripping from the idle gap 7 and the irradiation gap 8 onto the camera 2 and the laser emitter 3.

[0028] In actual use, the device is located between the upper belt and the lower belt of the belt conveyor.

[0029] It should be further explained that the laser transmitter is a straight-line laser and the camera is an industrial vision camera. The use of both can meet the needs of longitudinal tear detection of belts.

[0030] Furthermore, the air inlet ends of the fan assemblies 42 are all arranged downward.

[0031] It should be noted that the opening of the air inlet end of the fan assembly 42 is arranged downward to avoid sucking in mud droplets while sucking in air.

[0032] Furthermore, a mounting base 101 is fixedly connected to an inner wall of one side of the mounting shell 1, and one end of the mounting base 101 extends to the upper surface of the mounting shell 1. The camera 2 is arranged at an angle and connected to the end of the mounting base 101 located on the outside of the mounting shell 1. A mounting base 2 102 is connected to the side of the mounting shell 1 away from the mounting base 101. The laser emitter 3 is connected to the mounting base 2 102. The surface formed by the laser emitted by the laser emitter 3 is perpendicular to the lower surface of the upper belt. A mounting groove is provided on the upper surface of the mounting shell 1 and corresponds to the emitting end of the laser emitter 3. A glass plate 5 is fixedly connected in the mounting groove. The laser emitted by the laser emitter 3 passes through the glass plate 5 and irradiates the lower surface of the upper belt.

[0033] It should be noted that the glass plate 5 can be made of any material that can transmit laser light and does not affect the detection accuracy, and can be specifically made of high-transmittance laser glass.

[0034] Furthermore, the anti-mud and dirt mechanism 4 provided on one side of the camera 2 is a first anti-mud component, and the anti-mud and dirt mechanism 4 close to the laser emitter 3 is a second anti-mud component;

[0035] The shielding member 41 of the first anti-mud assembly includes a protective cover 411 and a baffle 1 412. The protective cover 411 is connected to the upper surface of the mounting shell 1 and covers the camera 2. The baffle 1 412 is connected to one side of the protective cover 411. A through groove is formed on the surface of the baffle 1 412, which is the idle gap 7. The fan assembly 42 of the first anti-mud assembly is connected to the mounting shell 1, and the blowing end of the fan assembly 42 is located on the side corresponding to the protective cover 411 and the baffle 1 412.

[0036] The shielding member 41 of the second anti-mud component includes two groups of baffles 413, which are respectively arranged on both sides of the glass plate 5 and fixedly connected to the upper surface of the mounting shell 1. The gap reserved between the two groups of baffles 413 is the irradiation gap 8. The fan component 42 of the second anti-mud component is connected to the mounting shell 1, and the blowing end of the fan component 42 is arranged on one side of the irradiation gap 8.

[0037] It should be noted that the arrangement of the two sets of baffles 413 allows the reserved irradiation gap to form a narrow air duct, so that the air flow blown out by the fan module 2 maintains a high wind speed, preventing mud drops falling between the baffles from contaminating the laser window.

[0038] Furthermore, the neutral gap 7 is arranged in a "V" shape.

[0039] In this embodiment, the sensor module with the neutral gap 7 being set in a "V" shape is suitable for deep trough belt conveyors. Specifically, the cross section of the upper belt of the conveyor (belt conveyor) is inverted trapezoidal. Two sets of sensor modules are set on one conveyor and are symmetrically arranged. The installation position of the sensor module is specifically referred to Figure 5 .

[0040] In another embodiment, the idle gap may also be in a straight line or other shape, depending on the type of belt.

[0041] refer to Figures 2 to 4A purge mechanism 6 is provided in the mounting shell 1 for cleaning dust accumulated on the glass plate 5 and the shooting end surface of the camera 2. The purge mechanism 6 includes an air supply component 61, a gas duct 62 and a nozzle 63. Two groups of nozzles 63 are provided. The air supply component 61 is installed in the mounting shell 1. The air inlet end of the gas duct 62 is connected to the air outlet end of the air supply component 61. The gas duct 62 is bifurcated to form two air outlet ends. Both air outlet ends of the gas duct 62 extend to the outside of the mounting shell 1. The two groups of nozzles 63 are respectively connected to the two air outlet ends of the gas duct 62. The nozzles 63 are respectively provided on one side of the camera 2 and one side of the glass plate 5.

[0042] It is necessary to specify the specific position. A set of air outlet ends of the gas duct 62 extends into the protective cover 411. The nozzle 63 connected to the air outlet end is aimed at the irradiation end face of the camera 2 to clean it. Another nozzle is aimed at the glass plate 5 and is arranged on the same side as the fan assembly 42 of the second anti-mud assembly.

[0043] Furthermore, the gas supply assembly 61 includes a constant pressure gas tank 611 and a timing switch valve 612. The constant pressure gas tank 611 is connected to the inner wall of the mounting shell 1. The air inlet end of the gas conduit 62 is connected to the air outlet end of the constant pressure gas tank 611. The timing switch valve 612 is connected to one end of the gas conduit 62 close to the constant pressure gas tank 611.

[0044] Furthermore, the air inlet end of the constant pressure gas tank 611 is connected to a high pressure gas source.

[0045] It should be noted that by connecting the constant pressure gas tank to an external high-pressure gas source, the pressure of the ejected gas can be kept at a high pressure and high flow rate state; the setting of the timing switch valve can set the injection interval and the duration of each injection as needed. Specifically, the gas can be compressed by a compressor to reach a high pressure state, and then the compressed gas can be transported to the constant pressure gas tank through a pipeline.

[0046] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. Belt longitudinal tear detection multi-sensor module, characterized by: The invention comprises a mounting shell (1), a camera (2) and a laser emitter (3), wherein the laser emitter (3) is connected to the mounting shell (1), the camera (2) is mounted in the mounting shell (1) and is arranged on one side of the laser emitter (3), and a dirt prevention mechanism (4) is provided on one side of the camera (2) and one side of the laser emitter (3); The anti-mud and dirt mechanism (4) comprises a shielding member (41) and a fan assembly (42). The shielding member (41) prevents mud and dirt from dripping onto the camera (2) and the laser emitter (3). The shielding member (41) provided on one side of the camera (2) is provided with an idle gap (7). The shielding member (41) provided on one side of the laser emitter (3) is provided with an irradiation gap (8). The laser emitted by the laser emitter (3) passes through the irradiation gap (8) and irradiates the lower surface of the upper belt. The camera (2) captures an image of the lower surface of the upper belt after being irradiated by the laser from the idle gap (7). Two groups of fan assemblies (42) are provided on one side of the two groups of shielding members (41) and correspond to the idle gap (7) and the irradiation gap (8) respectively, so as to prevent mud and dirt from dripping onto the camera (2) and the laser emitter (3).

2. The multi-sensor module for detecting longitudinal belt tears according to claim 1, characterized in that: The air inlet ends of the fan components (42) are all arranged downward.

3. The multi-sensor module for detecting longitudinal belt tears according to claim 2, characterized in that: A mounting seat 1 (101) is fixedly connected to an inner wall of one side of the mounting shell (1), one end of the mounting seat 1 (101) extends to the upper surface of the mounting shell (1), the camera (2) is tilted and connected to an end of the mounting seat 1 (101) located outside the mounting shell (1), a mounting seat 2 (102) is connected to a side of the mounting shell (1) away from the mounting seat 1 (101), the laser emitter (3) is connected to the mounting seat 2 (102), the surface formed by the laser emitted by the laser emitter (3) is perpendicular to the lower surface of the upper belt, the upper surface of the mounting shell (1) is provided with a mounting groove corresponding to the emitting end of the laser emitter (3), a glass plate (5) is fixedly connected in the mounting groove, and the laser emitted by the laser emitter (3) passes through the glass plate (5) and irradiates the lower surface of the upper belt.

4. The multi-sensor module for detecting longitudinal belt tears according to claim 3, characterized in that: The anti-mud and dirt mechanism (4) provided on one side of the camera (2) is a first anti-mud component, and the anti-mud and dirt mechanism (4) close to the laser emitter (3) is a second anti-mud component; The shielding member (41) of the first anti-mud component includes a protective cover (411) and a baffle (412), wherein the protective cover (411) is connected to the upper surface of the mounting shell (1) and covers the camera (2), and the baffle (412) is connected to one side of the protective cover (411). A through groove is provided on the surface of the baffle (412), which is an idle gap (7). The fan component (42) of the first anti-mud component is connected to the mounting shell (1), and the blowing end of the fan component (42) is located on the side corresponding to the protective cover (411) and the baffle (412). The shielding member (41) of the second anti-mud component includes two groups of baffles (413), the two groups of baffles (413) are respectively arranged on both sides of the glass plate (5) and fixedly connected to the upper surface of the mounting shell (1), and the gap reserved between the two groups of baffles (413) is the irradiation gap (8). The fan component (42) of the second anti-mud component is connected to the mounting shell (1), and the blowing end of the fan component (42) is arranged on one side of the irradiation gap (8).

5. The multi-sensor module for detecting longitudinal belt tears according to claim 4, characterized in that: The neutral gap (7) is arranged in a "V" shape.

6. The multi-sensor module for detecting longitudinal belt tears according to claim 1, characterized in that: A purge mechanism (6) is provided in the mounting shell (1) for cleaning dust accumulated on the glass plate (5) and the shooting end face of the camera (2). The purge mechanism (6) comprises an air supply assembly (61), a gas conduit (62) and a nozzle (63). Two groups of nozzles (63) are provided. The air supply assembly (61) is mounted in the mounting shell (1). The air inlet end of the gas conduit (62) is connected to the air outlet end of the air supply assembly (61). The gas conduit (62) is bifurcated to form two air outlet ends. Both air outlet ends of the gas conduit (62) extend outside the mounting shell (1). The two groups of nozzles (63) are respectively connected to the two air outlet ends of the gas conduit (62). The nozzles (63) are respectively provided on one side of the camera (2) and one side of the glass plate (5).

7. The multi-sensor module for detecting longitudinal belt tears according to claim 6, characterized in that: The gas supply assembly (61) comprises a constant pressure gas tank (611) and a timing switch valve (612); the constant pressure gas tank (611) is connected to the inner wall of the mounting shell (1); the gas inlet end of the gas conduit (62) is connected to the gas outlet end of the constant pressure gas tank (611); and the timing switch valve (612) is connected to one end of the gas conduit (62) close to the constant pressure gas tank (611).

8. The multi-sensor module for detecting longitudinal belt tears according to claim 7, characterized in that: The air inlet end of the constant pressure gas tank (611) is connected to an external high-pressure gas source.

Images