Device for realizing slip detection and wireless acquisition of conveying belt

Abstract

The utility model relates to a device for realizing slip detection and wireless acquisition of a conveying belt, which comprises the conveying belt, a conveying belt driving wheel, a conveying belt driven wheel, a coupling, a coupling fan, an air quantity protection cover and an air quantity collection pipe, the conveying belt is arranged outside the conveying belt driving wheel and the conveying belt driven wheel in a surrounding and sleeving mode, the conveying belt driving wheel drives the conveying belt to rotate, and the conveying belt drives the conveying belt driven wheel to rotate. The coupling fan is fixed on the conveyer belt driven wheel through the coupling, so that the coupling fan and the conveyer belt driven wheel rotate synchronously, the bottom of the air volume protection cover faces the coupling fan, and the top of the air volume protection cover is connected with the air volume collection pipe. By adopting the device for realizing slip detection and wireless acquisition of the conveying belt, the analog quantity signal is continuous and stable and is not easily interfered by the outside, the wireless transmission supports long-distance transmission, and the problems of attenuation and distortion during long-distance transmission are avoided while the long-distance transmission is supported.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, and in particular to the field of belt slippage detection, specifically a device for detecting and wirelessly collecting data on conveyor belt slippage. Background Technology

[0002] Existing technologies for belt slippage detection mostly employ contact detection or non-contact pulse signal detection methods.

[0003] For example, the Chinese utility model patent with the announcement date of March 9, 2021 and the announcement number CN212668389U is a contact detection method. The disadvantage of this type of detection is that the mechanism is in contact with the belt and rubs against it, which makes it easy to wear and damage it, resulting in a short service life.

[0004] For example, the Chinese utility model patent with the announcement date of December 20, 2024 and the announcement number CN 222203836U is a non-contact pulse signal detection method. Although it avoids friction and increases service life, the pulse signal is easily affected by external interference during transmission, especially during long-distance transmission, where signal attenuation and distortion are serious problems, resulting in limited transmission distance. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device that achieves high accuracy, small error, and wide applicability in detecting and wirelessly collecting data on conveyor belt slippage.

[0006] To achieve the above objectives, the device for detecting and wirelessly collecting data on conveyor belt slippage according to this utility model is as follows:

[0007] The device for detecting and wirelessly collecting data on conveyor belt slippage is characterized by comprising a conveyor belt, a drive pulley, a driven pulley, a coupling, a connecting fan, an airflow protection cover, and an airflow collection pipe. The drive pulley and driven pulley are located inside the conveyor belt, and the conveyor belt wraps around them. The drive pulley drives the conveyor belt to rotate, and the conveyor belt drives the driven pulley to rotate. The coupling fixes the connecting fan to the driven pulley, allowing the fan to rotate synchronously with the pulley. The airflow protection cover is conical, with its bottom connected to the connecting fan and its top connected to the airflow collection pipe. The side of the airflow protection cover closest to the driven pulley is open.

[0008] Preferably, the coaxial fan includes a coaxial fan shaft, the device further includes a bearing, the airflow protection cover is connected to the coaxial fan shaft via the bearing, the inner ring of the bearing is fixed to the coaxial fan shaft, and the outer ring of the bearing is fixed to the airflow protection cover.

[0009] Preferably, the device further includes an airflow detector connected to an airflow collection pipe.

[0010] Preferably, the device further includes a wireless transmitter and a wireless receiver, the wireless transmitter being connected to the airflow detector, the wireless receiver being adapted to the wireless transmitter, and the wireless receiver and wireless transmitter being connected via a wireless network.

[0011] Preferably, the device further includes a signal processor and a digital display screen, wherein the signal processor is connected to a wireless receiver and the digital display screen is connected to the signal processor.

[0012] This invention relates to a device for detecting and wirelessly acquiring data on conveyor belt slippage. It employs non-contact analog signal acquisition followed by wireless transmission. The analog signal is continuous and stable, less susceptible to external interference, while the wireless transmission supports long distances. This invention avoids friction, supports long-distance transmission, and also avoids attenuation and distortion problems during long-distance transmission. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the device for detecting and wirelessly collecting data on conveyor belt slippage according to this utility model.

[0014] Figure 2 This is a schematic diagram of an embodiment of the device for detecting and wirelessly collecting data on conveyor belt slippage according to this utility model.

[0015] Figure 3 This is a schematic diagram showing the connection between the coaxial fan 104 and the airflow protection cover 102 of the device for detecting and wirelessly collecting data on conveyor belt slippage according to this utility model.

[0016] Figure 4 This is a schematic diagram of the air volume protection cover of the device for detecting and wirelessly collecting data on conveyor belt slippage according to this utility model.

[0017] Figure label:

[0018] 100 conveyor belt

[0019] 101 Conveyor Belt Driven Pulley

[0020] 102 air volume protection cover

[0021] 103 Coupling

[0022] 104-coil fan

[0023] 105 air volume collection pipe

[0024] 106-coupling fan coupling

[0025] 107 bearing

[0026] 200 air volume detector

[0027] 201 Wireless Transmitter

[0028] 300 wireless receiver

[0029] 301 Signal Processor

[0030] 302 digital display screen

[0031] 400 conveyor belt drive pulley Detailed Implementation

[0032] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0033] This utility model discloses a device for detecting and wirelessly collecting data on conveyor belt slippage. It includes a conveyor belt 100, a drive pulley 400, a driven pulley 101, a coupling 103, a fan 104, an airflow protection cover 102, and an airflow collection pipe 105. The drive pulley 400 and driven pulley 101 are located inside the conveyor belt 100, and the conveyor belt 100 wraps around the drive pulley 400 and driven pulley 101. The drive pulley 400 drives the conveyor belt. The conveyor belt 100 rotates, driving the driven pulley 101 to rotate; the coupling 103 fixes the shaft fan 104 to the driven pulley 101, so that the shaft fan 104 and the driven pulley 101 rotate synchronously; the air volume protection cover 102 is conical, the bottom of the air volume protection cover 102 is connected to the shaft fan 104, the top of the air volume protection cover 102 is connected to the air volume collection pipe 105, and the side of the air volume protection cover 102 near the driven pulley 101 is hollow.

[0034] In a preferred embodiment of the present invention, the coaxial fan 104 includes a coaxial fan shaft 106, and the device further includes a bearing 107. The airflow protection cover 102 is connected to the coaxial fan shaft 106 through the bearing 107. The inner ring of the bearing 107 is fixed to the coaxial fan shaft 106, and the outer ring of the bearing 107 is fixed to the airflow protection cover 102.

[0035] In a preferred embodiment of the present invention, the device further includes an air volume detector 200, which is connected to the air volume collection pipe 105.

[0036] In a preferred embodiment of the present invention, the device further includes a wireless transmitter 201 and a wireless receiver 300. The wireless transmitter 201 is connected to the air volume detector 200, and the wireless receiver 300 is adapted to the wireless transmitter 201. The wireless receiver 300 and the wireless transmitter 201 are connected via a wireless network.

[0037] In a preferred embodiment of the present invention, the device further includes a signal processor 301 and a digital display screen 302, wherein the signal processor 301 is connected to the wireless receiver 300, and the digital display screen 302 is connected to the signal processor 301.

[0038] This invention uses an air volume acquisition device and a wireless transmission and processing device to monitor the speed of the driven wheel of the conveyor belt in real time, realizing non-contact, long-distance slippage detection of the conveyor belt. By comparing the acquired speed with the rated speed, the degree of belt slippage is determined, and different levels of alarms and handling methods are given.

[0039] This utility model mainly includes the following structure:

[0040] The drive pulley 400 of the conveyor belt is the power source input end, which drives the conveyor belt 100 to rotate.

[0041] The conveyor belt 100 drives the driven pulley 101 to rotate through friction. If the two are in close contact, the conveyor belt 100 will drive the driven pulley 101 normally. If the conveyor belt 100 is loose, slippage will occur between the conveyor belt 100 and the driven pulley 101, and the rotation of the driven pulley 101 will be abnormal.

[0042] The coupling 103 fixes the shaft fan 104 to the driven pulley 101 of the conveyor belt, so that the shaft fan 104 can rotate synchronously with the driven pulley 101 of the conveyor belt.

[0043] The airflow protection cover 102 protects the air generated by the rotation of the shaft fan 104 from overflowing, so that all the airflow generated by the rotation of the shaft fan 104 passes through the airflow collection pipe 105 and reaches the airflow detector 200.

[0044] The airflow protection cover 102 and the connecting shaft 106 of the shaft-connected fan are connected by a bearing 107. The inner ring of the bearing is fixed to the connecting shaft of the shaft-connected fan, and the outer ring of the bearing is fixed to the airflow protection cover. Figure 4 As shown, the air volume protection cover near the belt driven pulley is open, not closed. If it were closed, an air duct could not be formed.

[0045] The air volume detector 200 is a sensor for detecting air volume. In this technical solution, the air volume detector 200 can convert the air volume into a 4-20 mA analog electrical signal in direct proportion.

[0046] The wireless transmitter 201 and the wireless receiver 300 are used in pairs. The wireless transmitter 201 wirelessly transmits the 4-20 mA analog electrical signal collected by the air volume detector 200 to the wireless receiver 300.

[0047] Working principle:

[0048] As Figures 1-2 shown, when the conveyor belt driven pulley 101 rotates, the coaxial fan 104 will rotate synchronously. The air volume generated when the coaxial fan 104 rotates will pass through the air volume collection pipe 105 and reach the air volume detector 200. The air volume detector 200 will generate a 4-20 mA analog electrical signal according to the air volume. This signal is forwarded by the wireless transmitter 201 to the wireless receiver 300, and then transmitted by the wireless receiver 300 to the signal processor 301 for processing, converted into a rotational speed value, and the processed data is displayed on the digital display screen 302. At the same time, the digital display screen 302 can also set parameters to the signal processor 301, and the digital display screen can also give an alarm prompt.

[0049] Detection principle: The parameter x1 set on the digital display screen is the rated rotational speed of the conveyor belt driven pulley, and the rotational speed value collected and converted by the processor is x2;

[0050] The formula is n = (x1 - x2) / x1 × 100%, where n is the percentage of rotational speed difference;

[0051] When n ≤ 0, it is determined that the conveyor belt does not slip, and the digital display screen prompts normal;

[0052] When 0 < n ≤ 5%, it is judged that the conveyor belt slips slightly, and the digital display screen gives a yellow alarm, prompting attention;

[0053] When 5% < n ≤ 10%, it is judged that the conveyor belt slips moderately, and the digital display screen gives an orange alarm, prompting maintenance;

[0054] When 10% < n, it is judged that the conveyor belt slips severely, and the digital display screen gives a red alarm, prompting shutdown.

[0055] The rotational speed acquisition device of this technical solution can not only be an air volume detector, but also other types of detectors and match the corresponding acquisition devices, as long as it can acquire analog signals.

[0056] This technical solution also includes an airflow acquisition device. The fan and driven pulley are synchronously connected via a coupling. Thus, the faster the driven pulley rotates, the faster the fan rotates, and vice versa, resulting in different airflow rates. These airflow measurements are then collected by an airflow sensor to accurately determine the airflow volume and calculate the rotational speed of the driven pulley. Based on the rotational speed of the driven pulley, it can be determined whether the belt is slipping.

[0057] The 4-20mA analog signal used in this technical solution has the advantages of being continuous and stable, not easily affected by external interference, and having a long transmission distance.

[0058] For the specific implementation scheme of this embodiment, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0059] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0060] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means at least two.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] This invention relates to a device for detecting and wirelessly acquiring data on conveyor belt slippage. It employs non-contact analog signal acquisition followed by wireless transmission. The analog signal is continuous and stable, less susceptible to external interference, while the wireless transmission supports long distances. This invention avoids friction, supports long-distance transmission, and also avoids attenuation and distortion problems during long-distance transmission.

[0063] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A device for detecting and wirelessly collecting data on conveyor belt slippage, characterized in that, The device includes a conveyor belt, a drive pulley, a driven pulley, a coupling, a connecting fan, an airflow protection cover, and an airflow collection pipe. The drive pulley and driven pulley are located inside the conveyor belt, and the conveyor belt wraps around them. The drive pulley drives the conveyor belt to rotate, and the conveyor belt drives the driven pulley to rotate. The coupling fixes the connecting fan to the driven pulley, allowing the fan to rotate synchronously with it. The airflow protection cover is conical, with its bottom connected to the connecting fan and its top connected to the airflow collection pipe. The side of the airflow protection cover closest to the driven pulley is open.

2. The device for detecting and wirelessly collecting data on conveyor belt slippage according to claim 1, characterized in that, The aforementioned fan includes a fan shaft, and the device also includes a bearing. The airflow protection cover is connected to the fan shaft via the bearing. The inner ring of the bearing is fixed to the fan shaft, and the outer ring of the bearing is fixed to the airflow protection cover.

3. The device for detecting and wirelessly collecting data on conveyor belt slippage according to claim 1, characterized in that, The device also includes an air volume detector, which is connected to an air volume collection pipe.

4. The device for detecting and wirelessly collecting data on conveyor belt slippage according to claim 3, characterized in that, The device also includes a wireless transmitter and a wireless receiver. The wireless transmitter is connected to the air volume detector, and the wireless receiver is adapted to the wireless transmitter. The wireless receiver and the wireless transmitter are connected via a wireless network.

5. The device for detecting and wirelessly collecting data on conveyor belt slippage according to claim 4, characterized in that, The device also includes a signal processor and a digital display screen, wherein the signal processor is connected to a wireless receiver and the digital display screen is connected to the signal processor.

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