Abnormality monitoring device for tobacco shred storage cabinet

Abstract

The utility model belongs to the technical field of tobacco shred making equipment, and discloses an abnormity monitoring device for a tobacco shred storage cabinet. The abnormity monitoring device for the tobacco shred storage cabinet comprises a shell, a cylinder, an induction unit, a monitoring unit and a signal input unit. The cylinder is rotationally arranged in the rotating channel of the shell in a penetrating manner through the driving mechanism; the sensing unit is mounted at the end part of the central shaft of the cylinder and comprises a sensing piece; the monitoring unit is installed on the shell, the monitoring unit comprises at least two monitoring parts, and when the sensing part is right opposite to the monitoring parts, the monitoring parts are configured to be capable of monitoring the sensing part; the monitoring part is electrically connected with the signal input unit, and the signal input unit can obtain the time interval between two adjacent times of monitoring of the sensing part by the monitoring part. The abnormity monitoring device for the tobacco shred storage cabinet can obtain the operation state of the cylinder in real time, so that a worker can check or maintain the cylinder and the driving mechanism in time according to the operation state.

Description

Technical Field

[0001] This utility model relates to the technical field of tobacco processing line equipment, and in particular to an abnormal monitoring device for tobacco leaf storage cabinet. Background Technology

[0002] The turning machine, feeding and moistening roller, drying roller, and storage cabinet of the yarn processing equipment all use a cylindrical mechanical transmission unit connected by a motor drive shaft to achieve equipment operation. Cylindrical mechanical transmission devices are the most common transmission mechanisms. Currently, abnormal monitoring of mechanical transmission mechanisms generally uses traditional point-based monitoring, which can detect abnormalities such as breakage and displacement. However, in most cases, abnormalities must be discovered through manual inspection when the mechanical transmission mechanism is completely stopped, while abnormalities in mechanical transmission mechanisms often occur during operation.

[0003] In related technologies, point monitoring generally uses traditional photoelectric monitoring or magnetic induction monitoring. The monitoring devices used in the above monitoring methods can only realize the monitoring of mechanical point anomalies in the transmission body, but cannot monitor abnormal sudden changes in the transmission mechanism caused by changes in transmission load during operation.

[0004] Therefore, there is an urgent need for an abnormal monitoring device for tobacco leaf storage cabinets to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an abnormal monitoring device for tobacco leaf storage cabinets, which aims to solve the problem that traditional monitoring devices can only monitor point abnormalities of the transmission mechanism and cannot monitor abnormal sudden changes caused by changes in transmission load during operation.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An abnormality monitoring device for a tobacco leaf storage cabinet includes:

[0008] case;

[0009] A cylinder is rotatably inserted into the rotation channel of the housing via a drive mechanism;

[0010] A sensing unit is installed at the end of the central axis of the cylinder, and the sensing unit includes a sensing element;

[0011] A monitoring unit is installed in the housing. The monitoring unit includes at least two monitoring elements, which are evenly arranged along the circumference of the cylinder. When the sensing element is directly opposite the monitoring element, the monitoring element is configured to detect the sensing element.

[0012] A signal input unit is provided, wherein the monitoring device is electrically connected to the signal input unit, and the signal input unit is capable of obtaining the time interval between two consecutive detections of the sensing device by the monitoring device.

[0013] In some possible implementations, the sensor is arranged in a strip shape, the extension direction of the sensor is perpendicular to the axis of the central axis, and when the monitoring device detects the sensor, the monitoring device is located on the extension line of the sensor.

[0014] In some possible implementations, the sensing element is configured as a strip of metal sensing sheet.

[0015] In some possible implementations, the sensing unit further includes a disk detachably connected to the central axis of the cylinder, and the sensing element is detachably mounted on the disk.

[0016] In some possible implementations, the outer circumferential surface of the central shaft is provided with an elastic retaining ring, the center of the disk has a retaining hole, the wall of the retaining hole is recessed with an annular retaining groove, and the annular retaining groove cooperates with the elastic retaining ring.

[0017] In some possible implementations, the monitoring unit includes two monitoring elements that are symmetrically distributed circumferentially along the cylinder.

[0018] In some possible implementations, the tobacco leaf storage cabinet abnormality monitoring device further includes a protective cover, which is detachably installed on the housing and spaced between the sensing unit and the monitoring unit.

[0019] In some possible implementations, the protective cover includes a cover body and a connecting plate mounted on the outer periphery of the cover body, the connecting plate being detachably connected to the housing, the cover body including a retaining ring and a protective top mounted on the inner end of the retaining ring, the retaining ring and the protective top forming a receiving cavity for accommodating the sensing unit and the monitoring unit.

[0020] In some possible implementations, the protective top has a plurality of evenly distributed ventilation holes.

[0021] In some possible implementations, the connecting plate has an elongated hole through which a locking member passes to lock the connecting plate to the housing, and the housing has a threaded hole that mates with the locking member.

[0022] The beneficial effects of this utility model are as follows: The abnormal monitoring device for tobacco leaf storage cabinet provided by this utility model, by setting up a sensing unit and a monitoring unit, the sensing unit includes a sensing element and the monitoring element is evenly arranged along the circumference of the cylinder. When the sensing element and the monitoring element are directly opposite each other, the monitoring element can detect the sensing element, and the signal input unit can obtain the time interval t between two consecutive detections of the sensing element by the monitoring element. During the operation of the cylinder, when the time interval t1 between two consecutive detections of the sensing element by the monitoring element obtained by the signal input unit is different from t, it indicates that there is an abnormality in the operation of the cylinder. Thus, the operating status of the cylinder can be obtained in real time, so that the staff can check or repair the cylinder and the drive mechanism in a timely manner according to the operating status. Attached Figure Description

[0023] Figure 1 This is a three-dimensional view (protective cover not shown) of the tobacco leaf storage cabinet abnormality monitoring device provided in this embodiment of the utility model;

[0024] Figure 2 This is a three-dimensional view of the tobacco leaf storage cabinet abnormality monitoring device provided in this embodiment of the utility model;

[0025] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0026] Figure 4 This is a schematic diagram of the structure of the sensing unit provided in this embodiment of the utility model;

[0027] Figure 5 This is an assembly diagram of the monitoring component and protective cover provided in this embodiment of the utility model;

[0028] Figure 6 This is a schematic diagram showing the connection between the monitoring device and the wire provided in this embodiment of the utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the protective cover provided in this embodiment of the utility model.

[0030] In the picture:

[0031] 100. Housing; 200. Cylinder; 300. Drive mechanism; 400. Sensing unit; 410. Sensing element; 420. Disc; 510. Monitoring element; 600. Protective cover; 610. Cover body; 611. Enclosure ring; 6111. Extending tongue; 612. Protective top; 6121. Ventilation hole; 620. Connecting plate; 621. Long hole; 700. Wire. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] This embodiment provides an abnormal monitoring device for a tobacco leaf storage cabinet, which can monitor in real time whether there are abnormal changes in the running acceleration and running speed of the cylinder due to load changes during operation, so that the staff can promptly inspect or repair the cylinder and drive mechanism according to the operating status.

[0037] like Figures 1 to 6As shown, this embodiment provides an abnormal monitoring device for a tobacco leaf storage cabinet, including a housing 100, a cylinder 200, a sensing unit 400, a monitoring unit, and a signal input unit. The cylinder 200 is rotatably inserted into the rotation channel of the housing 100 via a drive mechanism 300. Exemplarily, the drive mechanism 300 may include a drive component and a transmission assembly, with the transmission assembly and the output end of the drive component being drively connected, and the cylinder 200 and the transmission assembly being drively connected. The drive component may be an AC motor; the transmission assembly may be a gear assembly or a conveyor belt assembly.

[0038] The sensing unit 400 is installed at the end of the central axis of the cylinder 200, and the sensing unit 400 includes a sensing element 410; the monitoring unit is installed in the housing 100, and the monitoring unit includes at least two monitoring elements 510. The at least two monitoring elements 510 are evenly arranged along the circumference of the cylinder 200. When the sensing element 410 and the monitoring element 510 are facing each other, the monitoring element 510 is configured to be able to detect the sensing element 410; the monitoring element 510 is electrically connected to the signal input unit, and the signal input unit is able to obtain the time interval between two consecutive detections of the sensing element 410 by the monitoring element 510.

[0039] The tobacco leaf storage cabinet abnormality monitoring device provided in this embodiment includes a sensing unit 400 and a monitoring unit. The sensing unit 400 includes a sensing element 410 and a monitoring element 510 evenly arranged along the circumference of the cylinder 200. When the sensing element 410 and the monitoring element 510 are directly opposite each other, the monitoring element 510 can detect the sensing element 410. The signal input unit can obtain the time interval t between two consecutive detections of the sensing element 410 by the monitoring element 510. During the operation of the cylinder 200, if the time interval t1 between two consecutive detections of the sensing element 410 by the monitoring element 510 obtained by the signal input unit is different from t, it indicates that there is an abnormality in the operation of the cylinder 200. Thus, the operating status of the cylinder 200 can be obtained in real time, allowing the staff to promptly inspect or repair the cylinder 200 and the drive mechanism 300 based on the operating status.

[0040] See Figure 4 Optionally, the sensing unit 400 also includes a disk 420, which is detachably connected to the central axis of the cylinder 200, and the sensing element 410 is detachably mounted on the disk 420. By setting the disk 420 and the cylinder 200 to be detachably connected, and the sensing element 410 to be detachably connected, the ease of assembly and disassembly can be effectively improved.

[0041] Exemplarily, the outer circumferential surface of the central shaft is provided with an elastic retaining ring, and the center of the disk 420 has a retaining hole with an annular groove recessed in the wall of the retaining hole. The annular groove and the elastic retaining ring cooperate with each other. During assembly, the disk 420 is sleeved on the central shaft, and the elastic retaining ring is compressed under the action of external force and enters the annular groove, which is easy to operate. In other embodiments, the disk 420 and the central shaft of the cylinder 200 can be connected by a threaded component such as a screw; or, an external thread is machined on the outer circumferential surface of the central shaft, and an internal thread is machined on the wall of the retaining hole of the disk 420, and the central shaft and the disk 420 are screwed together. Optionally, the sensing element 410 and the disk 420 can also be connected by a threaded component such as a screw.

[0042] In this embodiment, the sensing element 410 is arranged in a strip shape, and the extension direction of the sensing element 410 is perpendicular to the axis of the central axis. When the monitoring element 510 detects the sensing element 410, the monitoring element 510 is located on the extension line of the sensing element 410. The strip structure is easy to process, and the strip-shaped sensing element 410 preferably protrudes from the outer side of the disk 420 to improve the monitoring accuracy of the monitoring element 510.

[0043] Optionally, the sensing element 410 is configured as a metal sensing sheet. The metal sensing sheet has high sensitivity and linear response, and strong anti-interference ability.

[0044] like Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown, in this embodiment, the tobacco leaf storage cabinet abnormality monitoring device further includes a protective cover 600. The protective cover 600 is detachably installed on the housing 100, and the protective cover 600 is spaced over the sensing unit 400 and the monitoring unit. The protective cover 600 can protect the sensing unit 400 and the monitoring unit from damage by the external environment, and can also reduce interference.

[0045] See also Figure 7 Optionally, the protective cover 600 includes a cover body 610 and a connecting plate 620 mounted on the outer periphery of the cover body 610. The connecting plate 620 is detachably connected to the housing 100. The cover body 610 includes a retaining ring 611 and a protective top 612 mounted on the inner end of the retaining ring 611. The retaining ring 611 and the protective top 612 form a receiving cavity for accommodating the sensing unit 400 and the monitoring unit. The retaining ring 611 and the protective top 612 constitute the structure of the cover body 610. The entire cover body 610 has a simple structure and is easy to manufacture. The connecting plate 620 is detachably connected to the housing 100, which facilitates assembly and disassembly. Exemplarily, the connecting plate 620 is connected to the housing 100 by a threaded component.

[0046] Preferably, the protective top 612 has multiple evenly distributed ventilation holes 6121. The ventilation holes 6121 can effectively dissipate heat, and at the same time, the arrangement of the ventilation holes 6121 can reduce the overall weight of the cover 610. Optionally, the ventilation holes 6121 can be set to a circular, square or other irregular shape, as needed.

[0047] Optionally, the connecting plate 620 has an elongated hole 621 through which a locking member passes to lock the connecting plate 620 to the housing 100. The housing 100 has a threaded hole that mates with the locking member. By providing the elongated hole 621, the position of the connecting plate 620 can be adaptively adjusted as needed, improving the flexibility of position adjustment.

[0048] To improve the reliability of the connection between the protective cover 600 and the housing 100, the outer peripheral surface of the retaining ring 611 is provided with an extended tongue 6111, which is detachably connected to the housing 100 via a threaded connection. Optionally, the retaining ring 611 also has a notch for avoiding other components.

[0049] See Figure 5 and Figure 6 In this embodiment, the monitoring unit includes two monitoring elements 510, which are symmetrically distributed along the circumference of the cylinder 200. In other embodiments, the monitoring elements 510 may be three, four, or other quantities, depending on the requirements. See also Figure 6 During installation, the monitoring component 510 is electrically connected to the signal input unit via the wire 700, and the enclosure ring 611 has a through hole for the wire 700 to pass through.

[0050] This embodiment also provides an anomaly monitoring method, which is performed using the above-mentioned tobacco leaf storage cabinet anomaly monitoring device. The anomaly monitoring method includes:

[0051] S1. Activate the drive mechanism 300 to make the cylinder 200 rotate;

[0052] S2. Obtain the standard time interval t between two consecutive monitoring events where the monitoring element 510 detects the sensing element 410;

[0053] S3. During the rotation of cylinder 200, if the time interval t1 between two consecutive detections of sensor 410 by monitoring component 510 is different from t, it indicates that cylinder 200 is operating abnormally.

[0054] The abnormal monitoring method provided in this embodiment is completed using the above-mentioned tobacco leaf storage cabinet abnormal monitoring device. During monitoring, the standard time interval t between two adjacent sensing elements 410 detected by the monitoring element 510 is first obtained. When the cylinder 200 rotates, if the time interval t1 between two adjacent sensing elements 410 detected by the monitoring element 510 is different from t, it indicates that the running speed and acceleration of the cylinder 200 have changed. This may be due to the abnormal change in the time interval t caused by the load change of the drive mechanism 300. The staff can check or repair the cylinder 200 and the drive mechanism 300 in a timely manner according to the operating status, thereby improving the maintenance efficiency.

[0055] Taking a monitoring unit comprising two monitoring elements 510 as an example, the two monitoring elements 510 are symmetrically distributed along the circumference of the cylinder 200. The two monitoring elements 510 divide the circular area formed by the rotation of the cylinder 200 into two semicircles. Based on the specific dimensions of the cylinder 200 and its normal operating frequency and speed, the time required for each semicircle rotation can be calculated, i.e., the time T for each semicircle interval during normal operation. This time T is equal to the standard time interval t between two adjacent detections of the sensing element 410 by the monitoring element 510. When the cylinder 200 operates abnormally, its operating speed and acceleration will fluctuate, causing a sudden change in the time T required for each semicircle rotation. The time interval of the generated electromagnetic induction signal will also change abruptly, becoming t1. Since t1 is different from t, personnel can use this signal to promptly inspect or repair the cylinder 200 and the drive mechanism 300, improving maintenance efficiency. It is understood that during the monitoring process, if the time interval t1 between two adjacent detections of the sensing element 410 by any monitoring element 510 is different from t, it indicates an abnormality in the operation of the cylinder 200.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An abnormal monitoring device for a tobacco leaf storage cabinet, characterized in that, include: Casing (100); A cylinder (200) is rotatably inserted into the rotation channel of the housing (100) via a drive mechanism (300); A sensing unit (400) is installed at the end of the central axis of the cylinder (200), and the sensing unit (400) includes a sensing element (410); A monitoring unit is installed in the housing (100). The monitoring unit includes at least two monitoring elements (510). The at least two monitoring elements (510) are evenly arranged along the circumference of the cylinder (200). When the sensing element (410) is facing the monitoring element (510), the monitoring element (510) is configured to be able to detect the sensing element (410). The signal input unit is electrically connected to the monitoring element (510), and the signal input unit is capable of obtaining the time interval between two consecutive monitoring of the sensing element (410) by the monitoring element (510).

2. The tobacco leaf silo abnormality monitoring apparatus of claim 1, wherein The sensor (410) is arranged in a strip shape, and the extension direction of the sensor (410) is perpendicular to the axis of the central axis. When the monitoring element (510) detects the sensor (410), the monitoring element (510) is located on the extension line of the sensor (410).

3. The tobacco leaf silo abnormality monitoring apparatus of claim 2, wherein The sensing element (410) is configured as a strip-shaped metal sensing sheet.

4. The tobacco leaf silo anomaly monitoring apparatus of claim 1, wherein, The sensing unit (400) further includes a disk (420), which is detachably connected to the central axis of the cylinder (200), and the sensing element (410) is detachably mounted on the disk (420).

5. The tobacco leaf silo abnormality monitoring apparatus of claim 4, wherein, The outer circumferential surface of the central shaft is provided with an elastic retaining ring, and the center of the disc (420) has a retaining hole. The wall of the retaining hole is recessed with an annular retaining groove, and the annular retaining groove cooperates with the elastic retaining ring.

6. The tobacco leaf storage cabinet anomaly monitoring device of claim 1, wherein, The monitoring unit includes two monitoring elements (510), which are symmetrically distributed along the circumference of the cylinder (200).

7. The tobacco leaf silo anomaly monitoring apparatus of claim 1, wherein, The abnormal monitoring device for the tobacco leaf storage cabinet also includes a protective cover (600), which is detachably installed on the housing (100) and is spaced between the sensing unit (400) and the monitoring unit.

8. The tobacco leaf storage cabinet anomaly monitoring device of claim 7, wherein, The protective cover (600) includes a cover body (610) and a connecting plate (620) installed on the outer periphery of the cover body (610). The connecting plate (620) is detachably connected to the housing (100). The cover body (610) includes a retaining ring (611) and a protective top (612) installed on the inner end of the retaining ring (611). The retaining ring (611) and the protective top (612) form a receiving cavity for accommodating the sensing unit (400) and the monitoring unit.

9. The tobacco leaf storage cabinet anomaly monitoring device of claim 8, wherein, The protective top (612) has a plurality of evenly distributed ventilation holes (6121).

10. The tobacco leaf storage cabinet anomaly monitoring device of claim 8, wherein, The connecting plate (620) has an elongated hole (621), and a locking member passes through the elongated hole (621) to lock the connecting plate (620) to the housing (100). The housing (100) is provided with a threaded hole that mates with the locking member.

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