Transmission shaft abnormity monitoring device and driving mechanism applied to conveying equipment

Abstract

The invention relates to a transmission shaft abnormity monitoring device and a driving mechanism applied to conveying equipment, and the transmission shaft abnormity monitoring device comprises a triggering part which is used for being connected to a transmission shaft of the driving mechanism and rotating along with the transmission shaft; the sensor is used for being fixed to the conveying equipment, the triggering piece triggers the sensor once every time the transmission shaft rotates by a circle, and the sensor sends a pulse signal to the control system once when being triggered; wherein the controller is suitable for judging whether the rotating speed of the transmission shaft connected with the triggering piece is abnormal or not according to the comparison result of the pulse signal frequency received by the control system within unit time and the standard frequency. The power transmission condition of the conveying equipment can be monitored in real time, so that abnormal conditions can be found in time.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and in particular to a transmission shaft abnormality monitoring device and a driving mechanism applied to conveying equipment. Background Art

[0002] Conveying equipment such as belt conveyors and roller conveyors usually have a driving mechanism consisting of a driving shaft and multiple transmission shafts to provide support and conveying power for items. The driving shaft and transmission shafts and between adjacent transmission shafts are transmitted through the transmission mechanism. The transmission mechanism generally adopts transmission structures such as gear transmission, chain and sprocket transmission, or belt and pulley transmission.

[0003] During the long-term operation of conveying equipment, due to the wear of parts, mechanical failure and other reasons, it is inevitable that the transmission mechanism will have abnormal transmission, resulting in abnormal power transmission or even interruption. For conveying equipment that is conveying items, if the abnormality is not discovered in time and the operation is not stopped, accidents such as accumulation and collision of items are likely to occur. Therefore, it is necessary to design a device to monitor the power transmission of the conveying equipment so as to detect abnormalities in time. Summary of the invention

[0004] Based on the above description, the present invention provides a transmission shaft abnormality monitoring device and a driving mechanism applied to a conveying device to monitor the power transmission of the conveying device so as to detect abnormal conditions in time.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] In a first aspect, the present application provides a transmission shaft abnormality monitoring device, and the technical solution adopted is as follows:

[0007] A transmission shaft abnormality monitoring device, comprising:

[0008] A triggering member, which is used to be connected to the transmission shaft of the driving mechanism and rotate with the transmission shaft;

[0009] A sensor, which is used to be fixed on the conveying equipment, wherein the triggering member triggers the sensor once every rotation of the transmission shaft, and when the sensor is triggered, a pulse signal is sent to the control system;

[0010] Among them, it is suitable to judge whether the rotation speed of the transmission shaft connected to the trigger member is abnormal according to the comparison result of the pulse signal frequency received by the control system within a unit time and the standard frequency.

[0011] Preferably, a plurality of the trigger members are provided, and the plurality of trigger members are evenly spaced and distributed in the circumferential direction of the transmission shaft.

[0012] Preferably, it also includes a turntable connected to the transmission shaft, the turntable is coaxially fixed with the transmission shaft, the outer diameter of the turntable is larger than the diameter of the transmission shaft, and a plurality of trigger members are connected to the edge of the turntable and are evenly spaced around the circumference of the turntable.

[0013] In a second aspect, the present application provides a driving mechanism for a conveying device, comprising:

[0014] A plurality of transmission shafts are sequentially arranged along the conveying direction, and the adjacent transmission shafts are connected by the transmission mechanism. The first transmission shaft or the last transmission shaft along the conveying direction is used to be connected to a power source, and the transmission shaft connected to the power source drives the plurality of transmission shafts to rotate synchronously through the transmission mechanism when rotating;

[0015] The transmission shaft abnormality monitoring device as described in the first aspect above monitors whether the rotation speed of the transmission shaft located at the end of the power transmission route is abnormal.

[0016] Preferably, there are multiple transmission shaft abnormality monitoring devices, and the multiple transmission shaft abnormality monitoring devices monitor whether the rotational speeds of the multiple transmission shafts are abnormal one by one. The monitored transmission shafts include the transmission shafts located at the end of the power transmission route, and do not include the transmission shafts connected to the power source.

[0017] Preferably, among the multiple monitored transmission shafts, there are multiple unmonitored transmission shafts spaced between adjacent transmission shafts.

[0018] Preferably, when the driving mechanism operates normally, the transmission shaft abnormality monitoring device that monitors the transmission shaft located at the end of the power transmission route is turned on, and the other transmission shaft abnormality monitoring devices are turned off; when the speed of the transmission shaft located at the end of the power transmission route is abnormal, the other transmission shaft abnormality monitoring devices are turned on.

[0019] Preferably, it further comprises a plurality of alarm devices, wherein the plurality of alarm devices correspond one-to-one to the plurality of monitored transmission shafts, and when the rotation speed of the detected transmission shaft is abnormal, the corresponding alarm device is turned on.

[0020] Compared with the prior art, the technical solution of the present application has at least the following beneficial technical effects:

[0021] 1. The transmission shaft abnormality monitoring device of the present application is provided with a trigger and a sensor. The trigger is connected to the transmission shaft and rotates with the transmission shaft. The sensor is triggered once for each rotation. When the sensor is triggered, a pulse signal is sent to the control system. The frequency of the pulse signal per unit time when the transmission shaft speed is normal is used as the standard frequency. According to the comparison result between the frequency of the pulse signal received in real time and the standard frequency, when the difference is large, it can be judged that the transmission shaft speed is abnormal. When the transmission shaft speed is abnormal, it can be judged that the power transmission of the driving mechanism is abnormal. An alarm device can be configured during the design to alarm when the transmission shaft speed is abnormal, so as to stop the operation of the conveying equipment in time. Therefore, the present application can realize real-time monitoring of the power transmission of the conveying equipment, so as to detect abnormal conditions in time.

[0022] 2. The driving mechanism of the conveying equipment applied in the present application has a power source outputting power to drive the transmission shaft connected thereto to rotate, and transmits the power to each transmission shaft through multiple transmission mechanisms, thereby driving multiple transmission shafts to rotate synchronously. A transmission shaft abnormality monitoring device is provided to monitor whether the rotational speed of the transmission shaft at the end of the power transmission route is abnormal. When the rotational speed of the transmission shaft is normal, it indicates that the power transmission of the entire driving mechanism is normal; otherwise, it indicates that the power transmission is abnormal, thereby realizing the monitoring of the power transmission situation of the entire driving mechanism.

[0023] 3. The drive mechanism of the present application applied to the conveying equipment is provided with multiple transmission shaft abnormality monitoring devices to monitor whether the rotation speeds of the multiple transmission shafts are abnormal one by one. During the design, the multiple transmission shaft abnormality monitoring devices can be turned on synchronously. When the rotation speed of the transmission shaft is abnormal, the area and position of the abnormal power transmission can be quickly determined according to the position of the transmission shaft with abnormal rotation speed, so as to facilitate maintenance. Alternatively, when the rotation speed of the transmission shaft at the end of the power transmission route is normal, the transmission shaft abnormality monitoring device that monitors other transmission shafts is turned off, and when the rotation speed of the transmission shaft at the end of the power transmission route is abnormal, the transmission shaft abnormality monitoring device that monitors other transmission shafts is turned on. In this way, when the driving mechanism is operating normally, it is only necessary to turn on the transmission shaft abnormality monitoring device that monitors the transmission shaft at the end of the power transmission route to save costs. When the power transmission is abnormal, the other transmission shaft abnormality monitoring devices are turned on to quickly determine the area and position of the abnormal power transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a transmission shaft abnormality monitoring device provided by an embodiment of the present invention;

[0025] Figure 2 A schematic structural diagram of a driving mechanism applied to a conveying device provided in an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1. Transmission shaft; 2. Trigger; 3. Sensor; 4. Turntable. DETAILED DESCRIPTION

[0028] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0030] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0031] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0032] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0033] Reference Figure 1As shown, the embodiment of the present application provides a transmission shaft abnormality monitoring device, which includes a trigger 2 and a sensor 3. The trigger 2 is used to be connected to the transmission shaft 1 of the driving mechanism and rotate with the transmission shaft 1. The sensor 3 is used to be fixed on the conveying equipment. The trigger 2 triggers the sensor 3 once every rotation of the transmission shaft 1. When the sensor 3 is triggered, a pulse signal is sent to the control system. Among them, it is suitable to judge whether the speed of the transmission shaft 1 connected to the trigger 2 is abnormal according to the comparison result of the pulse signal frequency received by the control system per unit time and the standard frequency.

[0034] Reference Figure 1 As shown, specifically, during installation, the sensor 3 is fixed on the conveying equipment frame where the transmission shaft 1 is installed, the sensor 3 is relatively fixed to the axis position of the transmission shaft 1, and the trigger member 2 is fixed on the transmission shaft 1, so that the trigger member 2 triggers the sensor 3 once every rotation of the transmission shaft 1. In order to increase the trigger frequency of the sensor 3, multiple trigger members 2 are provided, and the multiple trigger members 2 are evenly spaced around the transmission shaft 1, so that when the transmission shaft 1 rotates one circle, the multiple trigger members 2 trigger the sensor 3 once respectively. In the case where the rotation speed of the transmission shaft 1 is slow, the provision of multiple trigger members 2 can shorten the length of the unit time, so as to quickly determine whether the rotation speed of the transmission shaft 1 is abnormal.

[0035] Reference Figure 1 As shown, further, it also includes a turntable 4 connected to the transmission shaft 1, the turntable 4 is coaxially fixed with the transmission shaft 1, the outer diameter of the turntable 4 is larger than the diameter of the transmission shaft 1, and a plurality of trigger members 2 are connected to the edge of the turntable 4 and are evenly spaced and distributed around the turntable 4. By providing the turntable 4, the installation of the trigger members 2 on the transmission shaft 1 is facilitated, and at the same time, the spacing between adjacent trigger members 2 can be increased to avoid triggering the sensors 3 at the same time.

[0036] Reference Figure 2 As shown, the embodiment of the present application also provides a driving mechanism for a conveying device, which includes a plurality of transmission shafts 1 arranged in sequence along the conveying direction, and the adjacent transmission shafts 1 are connected by a transmission mechanism, and the first transmission shaft 1 or the last transmission shaft 1 along the conveying direction is used to connect to a power source, and the transmission shaft 1 connected to the power source drives the plurality of transmission shafts 1 to rotate synchronously through the transmission mechanism when rotating. Among them, the transmission mechanism can adopt a transmission structure such as gear transmission, chain and sprocket transmission, or belt and pulley transmission.

[0037] In order to monitor the power transmission of the driving mechanism, it also includes the transmission shaft abnormality monitoring device as described above, which monitors whether the rotation speed of the transmission shaft 1 located at the end of the power transmission route is abnormal.

[0038] Reference Figure 2As shown, specifically, the number of transmission shaft abnormality monitoring devices can be set to one or more. When one is set, it monitors whether the rotation speed of the transmission shaft 1 located at the end of the power transmission route is abnormal, and the power transmission of the entire drive mechanism can be monitored. When multiple transmission shaft abnormality monitoring devices are set, multiple transmission shaft abnormality monitoring devices monitor the rotation speeds of multiple transmission shafts 1 one by one to see whether they are abnormal. The monitored transmission shafts 1 include the transmission shaft 1 located at the end of the power transmission route, and do not include the transmission shaft 1 connected to the power source; multiple transmission shafts 1 can be monitored to improve the accuracy of the monitoring results of the power transmission of the drive mechanism.

[0039] Reference Figure 2 As shown, for conveying equipment with a long conveying distance, the driving mechanism is designed to be longer. In order to quickly locate the position of abnormal power transmission, multiple drive shaft abnormality monitoring devices are set, so that among the multiple monitored drive shafts 1, there are multiple unmonitored drive shafts 1 between adjacent drive shafts 1, that is, a drive shaft abnormality monitoring device is set at a certain interval to monitor one drive shaft 1.

[0040] During the normal operation of the drive mechanism, multiple transmission shaft abnormality monitoring devices can be kept turned on at the same time to monitor the operation of multiple transmission shafts 1 in real time. When the power transmission is abnormal, the area where the power transmission begins to be abnormal can be determined based on the abnormal conditions of the multiple transmission shafts 1, so that it is convenient for personnel to quickly locate the abnormal position. Alternatively, when the drive mechanism is operating normally, the transmission shaft abnormality monitoring device that monitors the transmission shaft 1 located at the end of the power transmission route is turned on, and the other transmission shaft abnormality monitoring devices are turned off. When the speed of the transmission shaft 1 located at the end of the power transmission route is abnormal, the other transmission shaft abnormality monitoring devices are turned on. When the drive mechanism is operating normally, only one transmission shaft abnormality monitoring device is turned on, thereby reducing energy consumption costs. When the transmission shaft abnormality monitoring device detects that the speed of the transmission shaft 1 located at the end of the power transmission route is abnormal, the control system controls the other transmission shaft abnormality monitoring devices to be turned on to monitor whether the other transmission shafts 1 are abnormal, so that it is convenient for personnel to determine the location of the power transmission abnormality based on the monitoring results.

[0041] Furthermore, in order to realize the abnormal alarm function, multiple alarm devices are also provided, and the multiple alarm devices correspond to the multiple monitored transmission shafts 1 one by one. When the speed of the detected transmission shaft 1 is abnormal, the corresponding alarm device is turned on. Specifically, the alarm device, the transmission shaft abnormality monitoring device and the power source of the driving mechanism are all connected to the control system, and the monitoring data of the transmission shaft abnormality monitoring device is transmitted to the control system. The control system processes the data and determines whether the corresponding transmission shaft 1 speed is abnormal. When the transmission shaft 1 speed is abnormal, the corresponding alarm device is controlled to be turned on to prompt the staff to stop the machine in time.

[0042] In this embodiment, a plurality of transmission shaft abnormality monitoring devices are provided for illustration, and specifically, three are provided for illustration.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A transmission shaft abnormality monitoring device, characterized in that: include: A trigger member (2) is used to be connected to a transmission shaft (1) of a driving mechanism and rotate along with the transmission shaft (1); A sensor (3) is used to be fixed on the conveying equipment, wherein the triggering member (2) triggers the sensor (3) once every rotation of the transmission shaft (1), and when the sensor (3) is triggered, a pulse signal is sent to the control system; Wherein, it is suitable for judging whether the rotation speed of the transmission shaft (1) connected to the trigger element (2) is abnormal according to the comparison result of the pulse signal frequency received by the control system within a unit time and the standard frequency.

2. The transmission shaft abnormality monitoring device according to claim 1, characterized in that: A plurality of the triggering members (2) are provided, and the plurality of the triggering members (2) are evenly spaced and distributed in the circumferential direction of the transmission shaft (1).

3. The transmission shaft abnormality monitoring device according to claim 1, characterized in that: It also comprises a turntable (4) connected to the transmission shaft (1), the turntable (4) being coaxially fixed with the transmission shaft (1), the outer diameter of the turntable (4) being larger than the diameter of the transmission shaft (1), and a plurality of triggering members (2) being connected to the edge of the turntable (4) and evenly spaced around the circumference of the turntable (4).

4. A driving mechanism for a conveying device, characterized in that: include: A plurality of transmission shafts (1) are arranged in sequence along the conveying direction, and adjacent transmission shafts (1) are connected via the transmission mechanism. The first transmission shaft (1) or the last transmission shaft (1) along the conveying direction is used to be connected to a power source, and when the transmission shaft (1) connected to the power source rotates, the transmission mechanism drives the plurality of transmission shafts (1) to rotate synchronously; The transmission shaft abnormality monitoring device according to any one of claims 1 to 3 monitors whether the rotational speed of the transmission shaft (1) located at the end of the power transmission route is abnormal.

5. The driving mechanism for conveying equipment according to claim 4, characterized in that: The transmission shaft abnormality monitoring devices are provided in plurality, and the plurality of transmission shaft abnormality monitoring devices correspond one by one to monitor whether the rotation speeds of the plurality of transmission shafts (1) are abnormal. The monitored transmission shafts (1) include the transmission shafts (1) located at the end of the power transmission route, and do not include the transmission shafts (1) connected to the power source.

6. The driving mechanism for conveying equipment according to claim 5, characterized in that: Among the plurality of monitored transmission shafts (1), a plurality of unmonitored transmission shafts (1) are spaced between adjacent transmission shafts (1).

7. The driving mechanism for conveying equipment according to claim 5, characterized in that: When the driving mechanism operates normally, the transmission shaft abnormality monitoring device that monitors the transmission shaft (1) located at the end of the power transmission route is turned on, and the other transmission shaft abnormality monitoring devices are turned off. When the rotation speed of the transmission shaft (1) located at the end of the power transmission route is abnormal, the other transmission shaft abnormality monitoring devices are turned on.

8. The driving mechanism for conveying equipment according to claim 5, characterized in that: It also comprises a plurality of alarm devices, wherein the plurality of alarm devices correspond one-to-one to the plurality of monitored transmission shafts (1), and when the rotation speed of the detected transmission shaft (1) is abnormal, the corresponding alarm device is activated.

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