Pipe belt machine inspection deviation detection device

Abstract

The utility model discloses a pipe belt machine inspection deviation detection device which comprises a walking structure and a round pipe adhesive tape, the walking structure comprises a frame, a screw rod and a guide rod, the frame is arranged above the round pipe adhesive tape in parallel, and two symmetrical side frames, in the axial direction of the round pipe adhesive tape, of the frame are provided with containing grooves used for containing the screw rod and the guide rod respectively; an airflow blowing device is mounted on the screw rod in a threaded manner; an airflow receiver is slidably mounted on the guide rod; the airflow receiver is used for receiving airflow blown by the airflow blowing device through the circular tube adhesive tape; according to the utility model, the airflow blowing device and the airflow receiver are arranged to work together in a matched manner, the inspection detection device based on the airflow detection principle is suitable for being used in a closed corridor, is not influenced by illumination adjustment, can be used for detection under strong illumination or at night or under a well, and is accurate and convenient in detection and easy to popularize.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic detection of deviation of a belt conveyor, in particular to a deviation detection device for a belt conveyor during patrol inspection. Background Art

[0002] At present, pipe conveyors have been widely used in the power, metallurgy, port and other industries. For conveyors that transport bulk materials for a long time, irregular and scattered materials make the conveyor belt always in an unbalanced force state during the working process. The conveyor belt is prone to deviate to one end when it comes to rollers or drums. This is called pipe conveyor belt deviation. In addition, roller damage and rainfall can also cause belt deviation. Belt deviation can cause material spillage or damage to the belt edge, but if the deviation is too large, it can also cause the roller to be seriously damaged and the belt to break.

[0003] In the existing technical solutions for automatic detection of belt conveyor deviation, distance-based and vision-based detection methods are generally used. For example, the patent with application number CN202320468622.1 discloses a deviation detection device for a belt conveyor and a belt conveyor, including a bearing bracket, a first mounting bracket, a second mounting bracket and a light detection assembly, wherein the lower part of the bearing bracket is used for the support of the belt conveyor, one end of the first mounting bracket is connected to the upper part of the bearing bracket, and the other end is configured to extend toward the belt of the belt conveyor, one end of the second mounting bracket is connected to the upper part of the bearing bracket, and the other end is configured to extend toward the belt of the belt conveyor, the light detection assembly includes a first optical signal generator and a first optical signal receiver, the first optical signal generator is arranged on the first mounting bracket, and the first optical signal receiver is arranged at a corresponding position on the second mounting bracket, and there is a gap between the first mounting bracket and the second mounting bracket, and the gap is used for inserting the edge in the width direction of the belt; however, the patent identifies the offset by the distance between the gap between the edge of the belt and the sensor to determine whether the belt is offset, and the method is only applicable to belt conveyors. For circular tube conveyors, this detection method is only available in the unfolding section, and when the belt deviation is detected in the unfolding section of the tube conveyor, it is too late to correct the deviation.

[0004] The patent with application number CN202122468721.3 discloses a pipe belt conveyor transport corridor inspection device, including a running track and a protective shell, the inner wall of the protective shell is fixedly connected to a motor frame, the inner wall of the motor frame is fixedly connected to a drive motor, the driving end of the drive motor is fixedly connected to a coupling, one side of the coupling is fixedly connected to a motor input shaft, the outer surface of the motor input shaft is fixedly connected to a gear transmission mechanism, and the inner wall of the protective shell is fixedly connected to an inspection device; however, the patent uses a camera on an inspection robot to identify whether the belt is deviating. This unilateral arrangement can only detect the deviation of the belt. When the running direction of the inspection robot is consistent with the belt, it is impossible to determine which side the belt is deviating.

[0005] The patent with application number CN202210789165.6 discloses a pipe-belt conveyor detection device and a detection method thereof, and a pipe-belt conveyor. The pipe-belt conveyor detection device includes a plurality of mobile frames and a plurality of inspection robots arranged on the outside of the pipe-belt conveyor body, each of the inspection robots can move along the corresponding mobile frame, each of the inspection robots is provided with an image acquisition device and a transmission device, the pipe-belt conveyor body includes a conveyor belt, and the image acquisition device can acquire an image of the overlapping position of the conveyor belt; however, the patent adopts an image recognition algorithm, which is prone to misjudgment, and has not conducted more in-depth research on how to automatically judge and correct the deviation.

[0006] Therefore, a new solution is urgently needed for the deviation detection of the belt conveyor in the limited scene of the closed corridor and not affected by the light adjustment. To this end, we propose a belt conveyor inspection deviation detection device to solve the above problem. Utility Model Content

[0007] In order to solve the above problems existing in the prior art, the utility model provides a pipe belt conveyor inspection deviation detection device.

[0008] The technical solution of the utility model is as follows:

[0009] A pipe belt conveyor inspection deviation detection device comprises a walking structure and a round tube belt, the walking structure comprises a frame, a screw rod and a guide rod, the frame is arranged in parallel above the round tube belt, and the frame has two symmetrical side frames along the axial direction of the round tube belt, each of which is provided with a receiving groove for accommodating the screw rod and the guide rod respectively; an air flow blowing device is threadedly installed on the screw rod; an air flow receiver is slidably installed on the guide rod; the air flow receiver is used to receive the air flow after the air flow blowing device blows through the round tube belt.

[0010] Preferably, the walking structure also includes a gate-type bracket, a connecting rod and a driving motor, the output end of the driving motor is connected to one end of the screw rod; the gate-type bracket is fixedly installed at the bottom of the connecting rod, and the two ends of the connecting rod are respectively connected to the first movable seat in the airflow blowing device and the second movable seat in the airflow receiver; the gate-type bracket is arranged on the side deviating from the axis of the connecting rod; the airflow blowing device and the airflow receiver are arranged at both ends of the axis of the connecting rod, and the gate-type bracket does not interfere with the airflow ejected by the airflow blowing device.

[0011] Preferably, the airflow blowing device further comprises a jet nozzle and a first movable seat, the first movable seat is threadedly connected to the screw rod, and the bottom of the first movable seat is fixedly connected to the jet nozzle.

[0012] Preferably, the jet nozzle comprises an upper nozzle and a lower nozzle, the upper nozzle sprays the upper semicircular tube portion of the circular tube tape, and the lower nozzle sprays the lower semicircular tube portion of the circular tube tape.

[0013] Preferably, the airflow receiver also includes a plurality of flow meters, a partition and an installation box. The installation box is fixedly suspended at the bottom of the second movable seat. The plurality of flow meters are evenly installed in the vertical direction on the side of the installation box facing the circular tube tape. A partition is provided in the middle of the installation box at a position horizontal to the axis of the circular tube tape for evenly dividing the plurality of flow meters into two parts.

[0014] The utility model has the following beneficial effects:

[0015] The utility model arranges an airflow blowing device and an airflow receiver to work together, and determines whether the round tube belt is deviated by receiving gas flow data. The data display is more direct and clear. At the same time, a walking structure is arranged, which can make the airflow blowing device and the airflow receiver move on the whole frame at the same time and synchronously, so as to achieve multi-directional detection of the round tube belt. This inspection and detection device using the airflow detection principle is suitable for closed corridors and will not be affected by light adjustment. It can be detected regardless of strong light, night or underground, and the detection is accurate, convenient and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a top view of the overall structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the airflow spraying device of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the airflow receiver of the utility model;

[0020] Figure 5 This is a diagram of the airflow direction when the round tube tape of the utility model does not deviate;

[0021] Figure 6 This is a diagram showing the airflow direction when the circular tube tape of the utility model deviates clockwise;

[0022] Figure 7 This is a diagram showing the airflow direction when the circular tube adhesive tape of the utility model deviates counterclockwise;

[0023] The reference numerals in the figure are as follows:

[0024] 100, air flow blowing device; 110, jet nozzle; 111, upper nozzle; 112, lower nozzle; 120, first moving seat; 200, air flow receiver; 210, flow meter; 220, partition; 230, second moving seat; 240, installation box; 300, walking structure; 310, door-type bracket; 320, driving motor; 330, screw; 340, connecting rod; 350, frame; 360, guide rod; 400, round tube tape. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 4 A pipe belt conveyor inspection deviation detection device includes a walking structure 300 and a round tube belt 400. The walking structure 300 includes a frame 350, a screw 330 and a guide rod 360. The frame 350 is arranged in parallel above the round tube belt 400, and the frame 350 has two symmetrical side frames along the axial direction of the round tube belt 400. Receiving grooves are provided for respectively accommodating the screw 330 and the guide rod 360; an airflow blowing device 100 is threadedly installed on the screw 330; an airflow receiver 200 is slidably installed on the guide rod 360; the airflow receiver 200 is used to receive the airflow after the airflow blowing device 100 blows through the round tube belt 400.

[0027] Furthermore, the walking structure 300 also includes a door-type bracket 310, a connecting rod 340 and a driving motor 320, and the output end of the driving motor 320 is connected to one end of the screw 330; the door-type bracket 310 is fixedly installed at the bottom of the connecting rod 340, and the two ends of the connecting rod 340 are respectively connected to the first movable seat 120 in the airflow blowing device 100 and the second movable seat 230 in the airflow receiver 200; the door-type bracket 310 is arranged on the side deviating from the axis of the connecting rod 340; the airflow blowing device 100 and the airflow receiver 200 are arranged at the two ends of the axis of the connecting rod 340, and the door-type bracket 310 does not interfere with the airflow ejected by the airflow blowing device 100.

[0028] Furthermore, the airflow blowing device 100 further includes a jet nozzle 110 and a first movable seat 120 . The first movable seat 120 is threadedly connected to the screw rod 330 , and the bottom of the first movable seat 120 is fixedly connected to the jet nozzle 110 .

[0029] Furthermore, the jet nozzle 110 includes an upper nozzle 111 and a lower nozzle 112 , the upper nozzle 111 sprays the upper semicircular tube portion of the circular tube tape 400 , and the lower nozzle 112 sprays the lower semicircular tube portion of the circular tube tape 400 .

[0030] Furthermore, the airflow receiver 200 also includes a plurality of flow meters 210, a partition 220 and an installation box 240. The installation box 240 is fixedly suspended at the bottom of the second movable seat 240. The plurality of flow meters 210 are evenly installed in the vertical direction on the side of the installation box 240 facing the circular tube tape 400. A partition 220 is provided in the middle of the installation box 240 at a position horizontal to the axis of the circular tube tape 400 for evenly dividing the plurality of flow meters 210 into two parts.

[0031] See also Figures 5 to 7 , which are respectively the airflow trend diagram when the circular tube tape has not deviated, the airflow trend diagram when the circular tube tape deviates clockwise, and the airflow trend diagram when the circular tube tape deviates counterclockwise. It can be seen that the working principle used by the utility model is derived from the "cylindrical flow" in fluid mechanics. Due to the existence of overlapping edges on the circular tube tape 400, the airflow cannot smoothly transition on the outer surface of this position, and the local resistance will increase sharply, causing the airflow to separate from the tubular surface and diverge outward, so that the airflow bypassing the upper and lower parts of the circular tube tape 400 is unequal, and different airflow trajectories will be generated as shown in the trajectory along the way, which will affect the data value measured by the flow meter 210, thereby judging whether the circular tube tape 400 has deviated.

[0032] The working principle of this utility model:

[0033] In the utility model, the walking structure 300 includes a frame 350, a screw 330 and a guide rod 360. The frame 350 is arranged in parallel above the round tube tape 400, and the frame 350 has two symmetrical side frames along the axial direction of the round tube tape 400. The receiving grooves are provided for accommodating the screw 330 and the guide rod 360 respectively. The walking structure 300 also includes a door-type bracket 310, a connecting rod 340 and a driving motor 320. The output end of the driving motor 320 is connected to one end of the screw 330; the door-type bracket 310 is fixedly installed at the bottom of the connecting rod 340, and the two ends of the connecting rod 340 are respectively connected to the first movable seat 120 in the airflow blowing device 100 and the second movable seat 230 in the airflow receiver 200. The airflow blowing device 100 is threadedly installed on the screw 330; the airflow receiver 200 is slidably installed on the guide rod 360; the airflow receiver 200 is used to receive the airflow after the airflow blowing device 100 blows through the round tube tape 400.

[0034] When the driving motor 320 is started, the screw 330 is driven to rotate, thereby driving the first moving seat 120 threadedly connected to the screw 330 to move on the screw 330; at the same time, under the action of the connecting rod 340, the second moving seat 230 is driven to slide synchronously on the guide rod 360.

[0035] At the same time, the door-type bracket 310 is fixedly installed at the bottom of the connecting rod 340, and the door-type bracket 310 is arranged on the side deviating from the axis of the connecting rod 340; the airflow blowing device 100 and the airflow receiver 200 are arranged at both ends of the axis of the connecting rod 340, and the door-type bracket 310 does not interfere with the airflow ejected by the airflow blowing device 100; the airflow blowing device 100 also includes a jet nozzle 110 and a first movable seat 120, the first movable seat 120 is threadedly connected to the screw 330, and the bottom of the first movable seat 120 is fixedly suspended to the jet nozzle 110; the jet nozzle 110 includes an upper nozzle 111 and The lower nozzle 112 and the upper nozzle 111 blow the upper semicircular tube part of the circular tube tape 400, and the lower nozzle 112 blows the lower semicircular tube part of the circular tube tape 400; the airflow receiver 200 also includes a plurality of flow meters 210, a partition 220 and an installation box 240, the installation box 240 is fixedly suspended at the bottom of the second movable seat 240, and a plurality of flow meters 210 are evenly installed in the vertical direction on the side of the installation box 240 facing the circular tube tape 400; a partition 220 is provided in the middle of the installation box 240 at a position horizontal to the axis of the circular tube tape 400 for evenly dividing the plurality of flow meters 210 into two parts.

[0036] When the round tube tape 400 does not deviate, Figure 5 As shown, the jet nozzle 110 ejects a high-speed airflow toward the tubular tape, and the airflow is divided into two airflows, the upper half and the lower half, after contacting the circular tube tape 400. Since the overlapping edge is located directly above when not deviating, when the upper airflow passes through the overlapping edge, part of the airflow will continue to move along the arc segment tangent. When the airflow encounters the overlapping edge, the overlapping part will increase the local running resistance, causing part of the airflow to diverge outward and cannot reach the flow meter. The lower airflow at the arc end will flow along the edge of the circular tube tape 400 and smoothly reach the flow meter 210. After the upper and lower airflows reach the receiver of the flow meter 210, the flow meter 210 in the upper half detects the flow rate as an average value a, and the flow meter 210 in the lower half detects the flow rate as an average value b. The percentage k of the value of a relative to the value of b is recorded at this time, that is, a=kb.

[0037] When the round tube tape 400 deviates, Figure 6 and Figure 7As shown, the jet nozzle 110 ejects high-speed airflow toward the tubular tape. When the circular tube tape 400 deviates clockwise, the overlap also deviates clockwise, and the running line resistance of the upper part of the airflow changes. Since the overlap interface is close to the turbulent area, the resistance of the overlap interface to the airflow will gradually decrease. The lower half of the airflow at the arc end will flow along the edge of the tape. After the upper and lower airflows reach the flow meter receiver, their flow distributions are similar. When the value of k is greater than 0.9, the inspection robot determines that the tape has deviated. When the circular tube tape 400 deviates counterclockwise, the overlap also deviates counterclockwise. At this time, the overlap mouth is close to the upper and lower half of the airflow diversion point. The overlap interface has a small airflow loss at the diversion point, and the resistance passing through the upper and lower parts is relatively close. Therefore, after the upper and lower airflows reach the flow meter receiver, their flow distributions are similar. When the value of k is greater than 0.9, the inspection robot determines that the tape has deviated.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pipe belt conveyor inspection deviation detection device, comprising a walking structure (300) and a round pipe belt (400), characterized in that: The walking structure (300) comprises a frame (350), a screw rod (330) and a guide rod (360); the frame (350) is arranged in parallel above the round tube tape (400), and the frame (350) is provided with receiving grooves on two symmetrical side frames along the axial direction of the round tube tape (400) for respectively accommodating the screw rod (330) and the guide rod (360); an airflow blowing device (100) is threadedly mounted on the screw rod (330); an airflow receiver (200) is slidably mounted on the guide rod (360); the airflow receiver (200) is used to receive the airflow after the airflow blowing device (100) blows through the round tube tape (400).

2. A belt conveyor inspection deviation detection device according to claim 1, characterized in that: The walking structure (300) further comprises a door-shaped bracket (310), a connecting rod (340) and a driving motor (320), wherein the output end of the driving motor (320) is connected to one end of the screw rod (330); the door-shaped bracket (310) is fixedly mounted on the bottom of the connecting rod (340), and the two ends of the connecting rod (340) are respectively connected to the first movable seat (120) in the airflow blowing device (100) and the second movable seat (230) in the airflow receiver (200); the door-shaped bracket (310) is arranged on a side deviating from the axis of the connecting rod (340); the airflow blowing device (100) and the airflow receiver (200) are arranged at the two ends of the axis of the connecting rod (340), and the door-shaped bracket (310) does not interfere with the airflow ejected by the airflow blowing device (100).

3. A belt conveyor inspection deviation detection device according to claim 2, characterized in that: The airflow blowing device (100) further comprises a jet nozzle (110) and a first movable seat (120), wherein the first movable seat (120) is threadedly connected to the screw rod (330), and the bottom of the first movable seat (120) is fixedly connected to the jet nozzle (110).

4. A belt conveyor inspection deviation detection device according to claim 3, characterized in that: The jet nozzle (110) comprises an upper nozzle (111) and a lower nozzle (112); the upper nozzle (111) sprays the upper semicircular tube portion of the circular tube tape (400), and the lower nozzle (112) sprays the lower semicircular tube portion of the circular tube tape (400).

5. The device for detecting deviation of a belt conveyor during inspection according to claim 2, characterized in that: The airflow receiver (200) further comprises a plurality of flow meters (210), a partition (220) and an installation box (240); the installation box (240) is fixedly suspended at the bottom of the second movable seat (230); the plurality of flow meters (210) are evenly installed in a vertical direction on the side of the installation box (240) facing the circular tube tape (400); a partition (220) is provided in the middle of the installation box (240) at a position horizontal to the axis of the circular tube tape (400) for evenly dividing the plurality of flow meters (210) into two parts.

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