A device for monitoring the running state of a non-metallic carrier roller of a tape machine

Abstract

The utility model provides a kind of adhesive tape machine nonmetallic carrier roller operating state monitoring device, it is related to carrier roller monitoring technical field, solve the problem of poor monitoring accuracy in prior art.Sleeve is set in pipe body and is sleeved in shaft rod, the inner side end face of the inner ring of the bearing of the two end faces of sleeve respectively axial abutment corresponding end, annulus is formed between sleeve outer peripheral surface and pipe body inner peripheral surface;Sensor device is set in annulus and is installed in sleeve, for monitoring at least one operating state of nonmetallic carrier roller.The utility model installs sensor device on sleeve, and sleeve is located inside pipe body, when nonmetallic carrier roller operates, sensor device can be monitored in the more closed space in nonmetallic pipe body, can utilize pipe body to weaken various interference in environment, obtain more accurate monitoring data, solve the problem of poor carrier roller operating state monitoring accuracy.

Description

Technical Field

[0001] This utility model relates to the field of idler monitoring technology, specifically, it is a device for monitoring the operating status of non-metallic idlers on belt conveyors. Background Technology

[0002] Idler rollers are crucial components and wear parts of belt conveyors, used in large quantities. The quality of the idler rollers determines the service life and energy consumption of the belt conveyor. Sand making plants currently commonly use non-metallic idler rollers, such as nylon idler rollers and ultra-high molecular weight polyethylene idler rollers. These non-metallic idler rollers have excellent impact energy absorption and damping properties, possess high impact resistance, can withstand repeated impacts and vibrations, are not prone to breakage during long-term operation, effectively reduce operating noise, and thus protect the bearings from impact damage, greatly extending the overall service life of the idler rollers.

[0003] The current conventional method for monitoring the operating status of non-metallic idlers involves installing sensors such as temperature, vibration, and sound waves on supports or crossbeams beside the idlers to monitor various operating parameters. However, this method is susceptible to the influence of environmental factors such as dust, moisture, corrosive gases, noise, and ambient temperature, leading to inaccurate monitoring of the idler's operating status. Utility Model Content

[0004] The purpose of this invention is to design a non-metallic idler roller running status monitoring device for conveyor belt machines, in order to solve the problem of poor accuracy in monitoring the running status of idler rollers.

[0005] This utility model is achieved through the following technical solution: A device for monitoring the operating status of a non-metallic idler roller on a conveyor belt includes a shaft, bearings, a sleeve, a sensor, and a non-metallic tube. Each end of the shaft is fitted with one of the bearings. The tube is sleeved around the shaft, with each end fitted onto the outer ring of the corresponding bearing. The sleeve is disposed within the tube and fitted onto the shaft, with its two end faces axially abutting against the inner end faces of the corresponding bearing inner rings. An annular space is formed between the outer circumferential surface of the sleeve and the inner circumferential surface of the tube. The sensor is disposed within the annular space and mounted on the sleeve, for monitoring at least one operating status of the non-metallic idler roller.

[0006] When the above-described structure is adopted, the non-metallic idler roller operation status monitoring device for this belt conveyor mounts the sensor used to monitor the non-metallic idler roller's operation status on a sleeve. The sleeve is fitted onto the shaft and located inside the tube body. This allows the sensor to monitor the non-metallic idler roller's operation within the relatively enclosed space of the tube body. The tube body reduces various environmental interferences, resulting in more accurate monitoring data and solving the problem of poor accuracy in idler roller operation status monitoring. The sensor's location inside the tube body also effectively prevents damage from falling materials, water, and corrosive gases, ensuring stable and reliable sensor operation.

[0007] To further improve the present invention, the following structure is provided: a wire-passing channel is provided between the sleeve and the shaft, the wire-passing channel connects the annulus and the outside of the tube body, a cable is provided in the wire-passing channel, and one end of the cable passes through the annulus and is connected to the sensor.

[0008] To further improve the present invention, the following structure is specifically adopted: each end of the shaft is fitted with a bushing that is circumferentially anti-rotating with the shaft; the inner ring of the bearing is fitted onto the outer circumferential surface of the corresponding bushing; the end face of the bushing and the end face of the sleeve are axially abutting each other; the inner circumferential surface of the bushing is provided with a first through groove; the inner circumferential surface of the sleeve is provided with a second groove extending axially and a wire outlet hole extending radially; the first groove, the second groove and the wire outlet hole are sequentially connected axially and cooperate with the outer circumferential surface of the shaft to form the wire passage.

[0009] To further improve the realization of this utility model, the following structure is specifically adopted: the bushing and the shaft adopt a spline circumferential anti-rotation fit.

[0010] To further improve the present invention, the following structure is provided: the end of the sleeve is provided with a radially protruding flange, and the outer end face of the flange axially abuts against the inner end face of the inner ring of the bearing at the corresponding end.

[0011] When the above-mentioned structure is adopted, the outer end face of the radially protruding flange of the sleeve abuts against the inner end face of the bearing inner ring, which can increase the contact surface with the bearing under the condition that the sleeve wall thickness is constant, and improve the stability of the sleeve installation.

[0012] To further improve the present invention, the following structure is adopted: the sensor includes a temperature sensor, and the probe of the temperature sensor contacts the flange.

[0013] When the above-mentioned structure is adopted, the outer end face of the radially protruding flange abuts against the inner end face of the bearing inner ring. This can increase the contact area with the bearing while keeping the sleeve wall thickness constant, thereby improving the heat conduction efficiency. This allows the temperature of the flange to more accurately reflect the operating temperature of the bearing. After the temperature sensor probe contacts the flange, the bearing temperature can be monitored more accurately.

[0014] To further improve the present invention, the following structure is adopted: the flange portion is provided with a blind hole, and the probe of the temperature sensor is inserted into the blind hole.

[0015] When the above-mentioned structure is adopted, inserting the temperature sensor probe into the blind hole of the flange can more accurately monitor the bearing temperature, and can also improve the vibration resistance of the temperature sensor by cooperating with the blind hole.

[0016] To further improve the realization of this utility model, the following configuration structure is adopted: the sensor component includes two temperature sensors, one of which is provided at each end of the sleeve.

[0017] To further improve the present invention, the following structure is adopted: the sensor includes a vibration sensor, which is fixedly mounted on the inner end face of the flange.

[0018] To further improve the realization of this utility model, the following structure is specifically adopted: a vibration sensor is installed on each of the flange portions at both ends of the sleeve.

[0019] To further improve the realization of this utility model, the following structure is specifically adopted: the sensor includes an acoustic wave sensor, the acoustic wave sensor is mounted on a bracket, and the bracket is fixed to the middle section of the sleeve.

[0020] To further improve the realization of this utility model, the following structure is specifically adopted: the pipe body is a polyethylene pipe fitting.

[0021] This utility model has the following advantages and beneficial effects: In this invention, the non-metallic idler roller operating status monitoring device for a conveyor belt installs a sensor on a sleeve. The sleeve is fitted onto the shaft and located inside the tube, allowing the sensor to monitor the non-metallic idler roller within a relatively enclosed space. This design utilizes the tube to reduce environmental interference, resulting in more accurate monitoring data and solving the problem of inaccurate idler roller operating status monitoring. The sensor's location inside the tube also effectively prevents damage from falling materials, water, and corrosive gases, ensuring stable and reliable operation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the appearance of the non-metallic idler roller operation status monitoring device for a conveyor belt machine; Figure 2 This is a schematic diagram of the internal structure of the non-metallic idler roller operation status monitoring device for a conveyor belt machine; Figure 3 This is a longitudinal section schematic diagram of the non-metallic idler roller operation status monitoring device for conveyor belts; Figure 4 The structure of the tube body removed from the non-metallic idler roller operating status monitoring device of the conveyor belt machine is shown; Figure 5 It shows in Figure 4 The structure of the temperature sensor was further removed from the existing structure. Figure 6 This is a schematic diagram of the external structure of a tape conveyor.

[0024] The diagram is marked as follows: 1. Shaft; 11. External thread; 2. Bearing; 21. Sealing cap; 3. Pipe body; 31. Metal lining; 4. Sleeve; 41. Flange; 42. Blind hole; 43. Second groove; 44. Cable outlet; 51. Temperature sensor; 52. Vibration sensor; 53. Acoustic wave sensor; 54. Bracket; 6. Bushing; 61. First groove; 100, Annular space; 200, Threading channel; 300, Spline; 400, Idler roller frame; 500, Shaft frame. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship. In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] This application provides a device for monitoring the operating status of non-metallic idlers on a belt conveyor, which can accurately monitor the operating status of the non-metallic idlers, such as... Figure 1 - Figure 5 As shown, it is specifically configured with the following structure: The non-metallic idler roller operating status monitoring device for this conveyor belt is as follows: Figure 1 and Figure 2 As shown, it includes a roller section and a monitoring section disposed inside the roller section.

[0029] The idler roller includes a shaft 1, a bearing 2, and a tube 3. Each end of the shaft 1 is provided with a bearing 2. The inner ring of the bearing 2 is fixedly fitted on the outer circumferential surface of the shaft 1. The tube 3 is fitted outside the shaft 1 so that the shaft 1 passes through the inner hole of the tube 3 axially. Both ends of the tube 3 are fixedly fitted to the outer ring of the bearing 2 at the corresponding ends by a metal inner liner 31, so that the tube 3 can rotate smoothly around the shaft 1.

[0030] The monitoring component includes a sleeve 4 and a sensor. The sleeve 4 is integrally housed within the tube body 3 and fitted onto the shaft 1. Simultaneously, the two axially aligned end faces of the sleeve 4 are axially abutted against the inner end faces of the inner rings of the corresponding bearings 2, securing them in place. A complete annular space 100 is formed between the outer circumferential surface of the sleeve 4 and the inner circumferential surface of the tube body 3. The sensor is entirely located within the annular space 100 inside the tube body 3 and is fixedly mounted on the sleeve 4. It is used to monitor at least one operating state of the non-metallic idler roller within the tube body 3. The sleeve 4 fitted onto the shaft 1 can, to a certain extent, improve the strength of the shaft 1.

[0031] For example, the inner diameter of the sleeve 4 is equal to the outer diameter of the shaft 1, so that the inner circumferential surface of the sleeve 4 is in surface contact with the outer circumferential surface of the shaft 1.

[0032] like Figure 6 As shown, the three idler rollers form an idler roller assembly mounted on the idler roller frame 400, with the end of the shaft 1 as shown. Figure 6 It is mounted on the shaft bracket 500 as shown.

[0033] Pipe body 3 is a non-metallic pipe fitting, specifically it can be nylon pipe fitting, polyethylene pipe fitting, urea-formaldehyde resin pipe fitting, polyurethane pipe fitting, fiberglass pipe fitting, PVC pipe fitting, etc.

[0034] The sensor components may include one or any combination of a temperature sensor 51, a vibration sensor 52, and an acoustic sensor 53. The temperature sensor 51 is primarily used to monitor the operating temperature of the bearing 2, thereby assisting in determining the bearing's operating condition. The vibration sensor 52 is primarily used to monitor the operating vibration of the idler roller's shaft 1, tube 3, and bearing 2. The acoustic sensor 53 is primarily used to monitor vibrations transmitted through the air. The combination of the vibration sensor 52 and the acoustic sensor 53 can simultaneously monitor both low-frequency, high-energy and high-frequency, low-energy faults, improving the accuracy of idler roller monitoring and providing early warning capabilities.

[0035] In this embodiment, the non-metallic idler roller operation status monitoring device for the conveyor belt is equipped with a sensor for monitoring the operation status of the non-metallic idler roller on a sleeve 4. The sleeve 4 is fitted onto the shaft 1 and located inside the tube 3, so that when the non-metallic idler roller is running, the sensor can monitor the operation in a relatively enclosed space inside the non-metallic tube 3. The tube 3 can be used to reduce various interferences in the environment, such as using the damping characteristics of the tube 3 to filter out some environmental noise and structural vibrations during operation, so as to obtain more accurate monitoring data and thus better solve the problem of poor accuracy in monitoring the operation status of the idler roller.

[0036] In this embodiment, with the sensor located inside the non-metallic tube 3, the monitoring accuracy of the sensor is improved, and it can effectively detect weak signals, making the monitoring more sensitive. The non-metallic tube 3 also effectively prevents damage from falling materials, water, and corrosive gases in the environment, making the sensor's operation more stable and reliable.

[0037] According to some alternative embodiments, at least a portion of the sensor is connected to a signal receiving or processing device, such as a controller, via wired signal transmission. (See reference) Figure 2 and Figure 3 A wire-passing channel 200, which extends approximately axially from the outside of the tube body 3 into the annular cavity 100, is provided between the sleeve 4 and the shaft 1. This wire-passing channel 200 connects the annular cavity 100 with the outside of the tube body 3 for cable (not shown in the figure) to be threaded through. One end of the cable passes through the wire-passing channel 200 and into the annular cavity 100, where it is wired to the corresponding part of the sensor.

[0038] According to some alternative embodiments, at least a portion of the sensor device is connected to a signal receiving or processing device, such as a controller, via wireless signal transmission. The sensor device will be equipped with a battery assembly and an active wireless signal communication module powered by the battery assembly, which can be fixed to the outer peripheral surface of the sleeve 4 by bolts, adhesive, or the like.

[0039] According to some optional embodiments, such as Figure 2 and Figure 3 As shown, a bushing 6 is detachably fitted at each of the two axial ends of the shaft 1. The inner circumferential surface of the bushing 6 mates with the outer circumferential surface of the shaft 1 to achieve circumferential anti-rotation. The inner ring of the bearing 2 is fixedly fitted onto the outer circumferential surface of the corresponding bushing 6, so that the bearing 2 and the bushing 6 can be fitted onto the shaft 1 together, thus avoiding damage to the shaft 1 when replacing the bearing 2. The inner end face of the bushing 6 abuts axially with the outer end face of the sleeve 4.

[0040] In some implementations, a wire-threading channel 200 is provided between the shaft 1 and the sleeve 4, such as... Figure 2 and Figure 3 As shown, the inner circumferential surface of one of the bushings 6 has a first groove 61 that extends approximately axially from the outer end face of the bushing 6 to its inner end face. At the same time, the inner circumferential surface of the sleeve 4 has a second groove 43 that extends approximately axially from the outer end face. The sleeve 4 also has a wire outlet hole 44 that extends approximately radially from the outer circumferential surface to the inner circumferential surface. The first groove 61, the second groove 43 and the wire outlet hole 44 are sequentially connected axially to form a complete through groove. Meanwhile, the inner openings of the first groove 61, the second groove 43 and the wire outlet hole 44 cooperate with the outer circumferential surface of the shaft 1 to form an axially closed wire passage 200.

[0041] In some embodiments, such as Figure 4 and Figure 5 As shown, the bushing 6 and the shaft 1 are fitted with a 300° spline circumferential anti-rotation joint. Specifically, the inner circumferential surface of the bushing 6 is provided with a spline groove, and the outer circumferential surface of the shaft 1 is correspondingly provided with a spline. The bushing 6 can be axially installed onto the shaft 1 after its spline groove is aligned with the spline on the shaft 1. After the bushing 6 and the shaft 1 are axially installed in place, a retaining circumferential spring and / or a lock nut (not shown in the figure) are used to install the bushing 6 onto the shaft 1 to axially fix it and prevent it from falling off. For example... Figure 1 - Figure 3 The shaft 1 shown has an external thread 11 at both ends, and a lock nut can be installed on the external thread 11 to axially fix the bushing 6.

[0042] According to some optional embodiments, such as Figure 3 As shown, the sleeve 4 is configured as an end flange type part, with radially protruding flange portions 41 at both ends in the circumferential direction. It is easy to understand that the outer diameter of the flange portion 41 should not exceed the diameter of the opening at the end of the tube body 3; otherwise, the sleeve 4 or the shaft 1 on which the sleeve 4 is mounted will be difficult to install into the tube body 3. The outer end face of the flange portion 41 axially abuts against the inner end face of the inner ring of the bearing 2 at the corresponding end. This increases the contact area with the bearing 2 through the outer end face of the flange portion 41, improving the stability of the sleeve 4 installation, given a fixed wall thickness of the sleeve 4.

[0043] In some embodiments where a temperature sensor 51 is provided, the temperature sensor 51 is mounted on the sleeve 4. The housing of the temperature sensor 51 is fixed to the inner end face of the flange portion 41 of the sleeve 4 by bolts, while the probe of the temperature sensor 51 contacts the inner end face of the flange portion 41. In this way, the end of the sleeve 4 abuts against the inner end face of the inner ring of the bearing 2 through the outer end face of the radially protruding flange portion 41. With a certain wall thickness of the sleeve 4, the contact surface with the bearing 2 can be increased, which can improve the heat conduction efficiency and make the temperature of the flange portion 41 more accurately reflect the operating temperature of the bearing 2. After the probe of the temperature sensor 51 contacts the flange portion 41, the temperature of the bearing 2 can be monitored more accurately.

[0044] In some embodiments, such as Figure 5 As shown, the flange 41 of the sleeve 4 has an axially recessed blind hole 42 on its inner end face, and the probe of the temperature sensor 51 is as follows. Figure 3 As shown, it is inserted into the blind hole 42, contacting both the end face and the circumferential surface of the blind hole 42. This allows for more accurate monitoring of the bearing 2 temperature and also improves the vibration resistance of the temperature sensor 51 by cooperating with the blind hole 42.

[0045] In some embodiments, the sensor includes two temperature sensors 51, with one temperature sensor 51 at each end of the sleeve 4, and the two temperature sensors 51 respectively monitor the operating temperature information of one bearing 2.

[0046] According to some optional embodiments, a vibration sensor 52 is mounted on the sleeve 4, and the housing of the vibration sensor 52 is fixed to the inner end face of the flange portion 41 of the sleeve 4 by bolts.

[0047] For example, vibration sensor 52 is specifically a single-axis, dual-axis, or triaxial accelerometer used to monitor the axial and radial vibration of the entire idler roller section.

[0048] In some embodiments, the sensor includes two vibration sensors 52, with one vibration sensor 52 mounted on each of the flange portions 41 at both ends of the sleeve 4.

[0049] According to some optional embodiments, refer to Figure 3 A sealing cap 21 is installed on the inner end of the bearing 2 at the raceway to close the raceway side opening.

[0050] According to some optional embodiments, an acoustic sensor 53 is mounted on the sleeve 4, specifically as follows: Figure 2 - Figure 4 As shown, a bracket 54 is fixedly connected to the middle section of the sleeve 4 by bolts, and the acoustic sensor 53 is installed on the bracket 54 and suspended on the outside of the sleeve 4 through the bracket 54.

[0051] According to some optional embodiments, such as Figure 3 As shown, a temperature sensor 51, a vibration sensor 52, and an acoustic sensor 53 are simultaneously installed on the sleeve 4.

[0052] According to some optional embodiments, such as Figure 2 and Figure 3 As shown, the two ends of the shaft 1 in the circumferential direction are provided with an external thread 11 on the inner side of the square head at the tip. This threaded section can be used to install a lock nut, or a lock nut with a speed sensor. The speed sensor can cooperate with some concave and convex structures set at the end of the tube 3 to monitor the speed of the idler roller.

[0053] According to some alternative embodiments, the shaft 1 is detachably fitted with components such as an end cap or a sealing box at the location located outside the tube body 3.

[0054] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0055] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0056] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A device for monitoring the operating status of non-metallic idler rollers on a conveyor belt, characterized in that: include: Shaft (1), with a set of bearings (2) fitted at each end of the shaft (1); A non-metallic tube (3) is sleeved on the outside of the shaft (1), and the two ends of the tube (3) are respectively fitted onto the outer ring of the bearing (2) at the corresponding ends; Sleeve (4), the sleeve (4) is disposed inside the tube body (3) and sleeved on the shaft (1). The two end faces of the sleeve (4) respectively axially abut against the inner end face of the inner ring of the bearing (2) at the corresponding end. An annular space (100) is formed between the outer circumferential surface of the sleeve (4) and the inner circumferential surface of the tube body (3). A sensor element, which is disposed in the annulus (100) and installed on the sleeve (4), is used to monitor at least one operating state of the non-metallic idler roller.

2. The device for monitoring the operating status of a non-metallic idler roller of a conveyor belt according to claim 1, characterized in that: A wire-passing channel (200) is provided between the sleeve (4) and the shaft (1). The wire-passing channel (200) connects the annular cavity (100) and the outside of the tube body (3). A cable is provided in the wire-passing channel (200). One end of the cable passes through the annular cavity (100) and is connected to the sensor.

3. The device for monitoring the operating status of a non-metallic idler roller of a conveyor belt according to claim 2, characterized in that: At each end of the shaft (1), a bushing (6) is fitted to prevent rotation in the circumferential direction. The inner ring of the bearing (2) is fitted onto the outer circumferential surface of the bushing (6) at the corresponding end. The end face of the bushing (6) abuts axially with the end face of the sleeve (4). The inner circumferential surface of the bushing (6) is provided with an axially penetrating first groove (61). The inner circumferential surface of the sleeve (4) is provided with an axially extending second groove (43) and a radially extending outlet hole (44). The first groove (61), the second groove (43) and the outlet hole (44) are sequentially connected along the axial direction and cooperate with the outer circumferential surface of the shaft (1) to form the threading channel (200).

4. The device for monitoring the operating status of a non-metallic idler roller of a conveyor belt according to claim 3, characterized in that: The bushing (6) and the shaft (1) are fitted with a spline circumferential anti-rotation fit.

5. The device for monitoring the operating status of a non-metallic idler roller of a conveyor belt according to claim 2, characterized in that: The sleeve (4) has a radially protruding flange (41) at its end, and the outer end face of the flange (41) axially abuts against the inner end face of the inner ring of the bearing (2) at the corresponding end.

6. The device for monitoring the operating status of a non-metallic idler roller of a conveyor belt according to claim 5, characterized in that: The sensor includes a temperature sensor (51), the probe of which contacts the flange (41).

7. The device for monitoring the operating status of a non-metallic idler roller of a conveyor belt according to claim 6, characterized in that: The flange portion (41) has a blind hole (42), and the probe of the temperature sensor (51) is inserted into the blind hole (42); And / or, the sensor includes two temperature sensors (51), one of which is provided at each end of the sleeve (4).

8. The device for monitoring the operating status of a non-metallic idler roller of a conveyor belt according to claim 5, characterized in that: The sensor includes a vibration sensor (52), which is fixedly mounted on the inner end face of the flange (41). And / or, a vibration sensor (52) is installed on each of the flange portions (41) at both ends of the sleeve (4).

9. The device for monitoring the operating status of a non-metallic idler roller of a conveyor belt according to claim 1, characterized in that: The sensor includes an acoustic wave sensor (53), which is mounted on a bracket (54) and the bracket (54) is fixed to the middle section of the sleeve (4).

10. The device for monitoring the operating status of a non-metallic idler roller of a conveyor belt according to claim 1, characterized in that: The pipe body (3) is a polyethylene pipe fitting.

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