Device for monitoring vibration and temperature of equipment

Abstract

The invention discloses a device for monitoring vibration and temperature of equipment, which comprises a self-adaptive sleeve shaft mounted on a rotating shaft of driving equipment and a vibration sensor mounted on the outer side of the self-adaptive sleeve shaft, and the self-adaptive sleeve shaft can keep a static state independent of the rotating shaft of the driving equipment. The vibration sensor is used for monitoring vibration amplitude of a rotating shaft of driving equipment; a temperature sensor is mounted on the self-adaptive sleeve shaft and is used for monitoring the temperature of a rotating shaft of the driving equipment; the vibration sensor and the temperature sensor are connected with a central processing system, and the central processing system is used for receiving an output signal of the vibration sensor and an output signal of the temperature sensor and giving an alarm when the vibration amplitude and the temperature of a rotating shaft of the driving equipment exceed set threshold values; when the rotary vibration of the driving equipment is measured, friction cannot be generated on the sensing surface of the vibration sensor, and the service life of the vibration sensor is prolonged.

Description

Technical Field

[0001] This invention relates to the field of equipment safety monitoring technology, specifically to a device for monitoring equipment vibration and temperature. Background Technology

[0002] Equipment often vibrates during operation. If the vibration intensity is too high, it can affect the normal operation of the equipment and even cause production accidents. Therefore, to prevent abnormal vibration from going undetected, it is necessary to monitor the vibration of each part of the equipment. This allows for timely understanding of the vibration status of each part. When monitoring the vibration status of equipment, vibration sensors are usually deployed on the side of the monitored part. The vibrating equipment will generate a piezoelectric effect on the sensing surface of the vibration sensor, converting the mechanical vibration energy into an electrical signal. Temperature monitoring of the equipment is mostly done through non-contact infrared radiation.

[0003] However, for vibration monitoring of the rotating shaft of drive equipment, vibration sensors are mostly installed on the side of the rotating shaft of the drive equipment to monitor the vibration of the rotating shaft. However, the rotating shaft of the drive equipment causes friction damage to the sensing surface of the vibration sensor, thereby reducing the service life of the vibration sensor. Summary of the Invention

[0004] The purpose of this invention is to provide a device for monitoring equipment vibration and temperature, in order to solve the technical problem in the prior art where the rotating shaft of the rotating drive equipment causes frictional damage to the sensing surface of the vibration sensor, thereby reducing the service life of the vibration sensor.

[0005] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0006] A device for monitoring equipment vibration and temperature, comprising:

[0007] An adaptive sleeve is mounted on the rotating shaft of the drive device, and a vibration sensor is mounted on the outside of the adaptive sleeve. The adaptive sleeve is capable of remaining stationary independently of the rotating shaft of the drive device, and the vibration sensor is used to monitor the vibration amplitude of the rotating shaft of the drive device.

[0008] A temperature sensor is installed on the adaptive sleeve shaft, and the temperature sensor is used to monitor the temperature of the rotating shaft of the drive device.

[0009] Both the vibration sensor and the temperature sensor are connected to a central processing system, which is used to receive the output signal of the vibration sensor and the output signal of the temperature sensor.

[0010] The central processing system determines the vibration amplitude of the rotating shaft of the drive device based on the output signal of the vibration sensor, and determines the temperature of the rotating shaft of the drive device based on the output signal of the temperature sensor, and alarms when the vibration amplitude and temperature of the rotating shaft of the drive device exceed a set threshold.

[0011] As a preferred embodiment of the present invention, the adaptive sleeve includes a hollow sleeve and a plurality of evenly distributed spherical slots disposed on the inner wall of the hollow sleeve. A sphere capable of free rotation is installed in the spherical slot, and the hollow sleeve is kept stationary by the spheres when the rotating shaft of the driving device rotates.

[0012] In a preferred embodiment of the present invention, the side of the rotating shaft of the drive device is provided with an inclined support frame, and the end of the inclined support frame is fixedly connected to the sensing surface of the vibration sensor through an elastic component. When the rotating shaft of the drive device rotates normally, the elastic component just contacts the sensing surface of the vibration sensor. When the rotating shaft of the drive device vibrates, the elastic component will apply pressure to the sensing surface of the vibration sensor, causing the sensing surface of the vibration sensor to deform. The vibration sensor converts the vibration energy of the rotating shaft of the drive device into an electrical signal.

[0013] The other sides of the vibration sensor are fixedly mounted on the surface of the hollow sleeve shaft, and the position of the vibration sensor remains stationary relative to the rotation axis of the drive device.

[0014] As a preferred embodiment of the present invention, the rotating shaft of the driving device is fixedly installed with protective sleeves at both ends of the hollow sleeve shaft, and the hollow sleeve shaft is locked within the gap between the two protective sleeves, so that the position of the hollow sleeve shaft remains stable and the elastic component generates vertical stress on the sensing surface of the vibration sensor.

[0015] The temperature sensor is used to measure the surface temperature of the rotating shaft of the drive device located between the protective sleeve and the hollow sleeve shaft.

[0016] In a preferred embodiment of the present invention, the temperature sensor is disposed at the end of the hollow sleeve shaft, and the installation position of the temperature sensor is the same as the installation position of the vibration sensor.

[0017] Balance blocks are set at multiple evenly distributed points on the side curved surface of the hollow sleeve shaft. The mass of the balance block at each point is the same as the total mass of the vibration sensor and the temperature sensor, so that the hollow sleeve shaft remains stationary relative to the rotation axis of the drive device.

[0018] As a preferred embodiment of the present invention, the hollow sleeve shaft is provided with vertical annular plates at both ends, the vertical annular plates and the hollow sleeve shaft are in an I-shape structure, and the temperature sensor is installed on the vertical annular plates to measure the temperature of the rotating shaft of the drive device.

[0019] As a preferred embodiment of the present invention, the central processing system is used to use the output signal corresponding to the normal rotation of the rotating shaft of the drive device monitored by the vibration sensor as a reference signal;

[0020] The central processing system is used to identify step signals in the vibration sensor that exceed the reference signal, and to determine the current vibration amplitude of the rotating shaft of the drive device based on the difference between the step signal and the reference signal.

[0021] The central processing system is used to count the occurrence frequency of the step signal and determine the vibration frequency of the rotating shaft of the drive device based on the occurrence frequency of the step signal.

[0022] As a preferred embodiment of the present invention, when the current vibration amplitude of the rotating shaft of the drive device exceeds a set threshold, an alarm is triggered through the alarm system connected to the output port of the central processing system.

[0023] When the vibration frequency of the rotating shaft of the drive device exceeds a set threshold, an alarm system connected to the output port of the central processing system will sound an alarm.

[0024] As a preferred embodiment of the present invention, the temperature sensor is used to measure the temperature at the location on the rotating shaft of the drive device where the hollow sleeve shaft is installed;

[0025] When the temperature monitored by the temperature sensor exceeds a set threshold, an alarm is triggered through the alarm system connected to the output port of the central processing system.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] This invention installs an adaptive sleeve on the rotating shaft of a drive device. The adaptive sleeve can vibrate with the rotating shaft of the drive device and can also remain stationary independently of the rotating shaft. The vibration sensor, also mounted on the adaptive sleeve, can remain stationary. When the rotating shaft of the drive device vibrates, the elastic component on the side of the rotating shaft exerts pressure on the sensing surface of the vibration sensor, thereby converting the vibration energy generated by the rotating shaft into an electrical signal. Thus, this embodiment does not cause friction on the sensing surface of the vibration sensor when measuring the rotational vibration of the drive device, improving the service life of the vibration sensor. Attached Figure Description

[0028] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of the vibration and temperature monitoring device according to an embodiment of the present invention;

[0030] Figure 2 This is a three-dimensional structural diagram of the adaptive sleeve shaft according to an embodiment of the present invention;

[0031] Figure 3 This is a longitudinal section diagram of the adaptive sleeve shaft according to an embodiment of the present invention;

[0032] The labels in the diagram represent the following:

[0033] 1-Adaptive sleeve shaft; 2-Vibration sensor; 3-Temperature sensor; 4-Central processing system; 5-Inclined support frame; 6-Elastic component; 7-Protective sleeve; 8-Balance block; 9-Vertical ring plate;

[0034] 11-Hollow sleeve shaft; 12-Spherical groove; 13-Sphere. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] like Figure 1 As shown, the present invention provides a device for monitoring equipment vibration and temperature, comprising: an adaptive sleeve 1 mounted on the rotating shaft of a drive device, and a vibration sensor 2 mounted on the outside of the adaptive sleeve 1. The adaptive sleeve 1 is capable of remaining stationary independently of the rotating shaft of the drive device, and the vibration sensor 2 is used to monitor the vibration amplitude of the rotating shaft of the drive device.

[0037] A temperature sensor 3 is installed on the adaptive sleeve shaft 1. The temperature sensor 3 is used to monitor the temperature of the rotating shaft of the drive device.

[0038] Both vibration sensor 2 and temperature sensor 3 are connected to a central processing system 4, which is used to receive the output signals of vibration sensor 2 and temperature sensor 3.

[0039] The central processing system 4 determines the vibration amplitude of the rotating shaft of the drive device based on the output signal of the vibration sensor 2, and determines the temperature of the rotating shaft of the drive device based on the output signal of the temperature sensor 3, and alarms when the vibration amplitude and temperature of the rotating shaft of the drive device exceed the set threshold.

[0040] Vibration sensor 2 refers to a device that converts mechanical vibrations and oscillations measured by the monitored equipment into proportional electrical signals, which can be further processed and analyzed to identify problematic vibration patterns that indicate machine malfunction.

[0041] The basic physical phenomenon that enables the vibration sensor 2 to function in this embodiment is the piezoelectric effect. Certain ceramic materials (e.g., quartz crystals) and special formulations (e.g., lead zirconate titanate) have the inherent ability to generate potentials and voltages proportional to the applied mechanical force, stress, or strain, converting vibration energy from machinery into electrical signals.

[0042] The generated power output can even be recorded as marginal deviation from the baseline machine condition previously characterized throughout the operating range. This observable data aids in tracking, trend analysis, and quantitative fault diagnosis.

[0043] In order to avoid friction damage to the sensing surface of the vibration sensor 2 caused by the rotating shaft of the drive device, this embodiment installs an adaptive sleeve 1 on the rotating shaft of the drive device. The adaptive sleeve 1 can follow the vibration of the rotating shaft of the drive device and can also remain stationary independently of the rotating shaft of the drive device, so as not to cause friction to the sensing surface of the vibration sensor 2 and improve the service life of the vibration sensor 2.

[0044] In addition, after the adaptive sleeve 1 is installed, when the rotating shaft of the drive device rotates, it will generate friction with the inner wall of the adaptive sleeve 1, which will cause the temperature of the rotating shaft of the drive device to gradually rise. Therefore, in this embodiment, the temperature sensor 3 is installed at the end of the adaptive sleeve 1. The temperature sensor 3 is used to measure the surface temperature of the rotating shaft of the drive device when it is in the adaptive sleeve 1 stage. The temperature at this position is relatively higher than the temperature at other positions. Thus, by measuring the highest surface temperature of the rotating shaft of the drive device, the temperature safety of the drive device can be characterized.

[0045] It should be noted that this embodiment uses a vibration sensor based on the piezoelectric effect principle. A positioning contact is set on the side of the rotating shaft of the driving device. When the rotating shaft of the driving device rotates normally without deviation, the positioning contact just contacts the sensing surface of the vibration sensor 2. At this time, the sensing surface of the vibration sensor 2 will not exhibit the piezoelectric effect, and the signal output by the vibration sensor 2 is a reference signal. However, when the rotating shaft of the driving device vibrates, the positioning contact will squeeze inward or pull outward on the sensing surface of the vibration sensor 2. At this time, the sensing surface of the vibration sensor 2 will exhibit the piezoelectric effect, and the signal output by the vibration sensor 2 is a step signal.

[0046] In order to achieve the piezoelectric effect on the sensing surface of the vibration sensor 2, the adaptive sleeve 1 of this embodiment includes a hollow sleeve 11 and a plurality of evenly distributed spherical slots 12 disposed on the inner wall of the hollow sleeve 11. A sphere 13 that can rotate freely is installed in the spherical slots 12. The hollow sleeve 11 is kept stationary by the spheres 13 when the rotating shaft of the driving device rotates.

[0047] like Figure 2 As shown, the side of the rotating shaft of the drive device is provided with an inclined support frame 5, and the end of the inclined support frame 5 is fixedly connected to the sensing surface of the vibration sensor 2 through an elastic component 6. When the rotating shaft of the drive device rotates normally, the elastic component 6 just contacts the sensing surface of the vibration sensor 2. When the rotating shaft of the drive device vibrates, the elastic component 6 will apply pressure to the sensing surface of the vibration sensor 2, causing the sensing surface of the vibration sensor 2 to deform. The vibration sensor 2 converts the vibration energy of the rotating shaft of the drive device into an electrical signal.

[0048] The other sides of the vibration sensor 2 are fixedly mounted on the surface of the hollow sleeve shaft 11, and the position of the vibration sensor 2 remains stationary relative to the rotation axis of the drive device.

[0049] The end of the elastic component 6 is fixedly connected to the sensing surface of the vibration sensor 2, and the hollow sleeve shaft 11 can always remain stationary when the rotating shaft of the drive device rotates. Therefore, the position of the vibration sensor 2 remains unchanged. When the elastic component 6 applies force to the sensing surface of the vibration sensor 2, it is only when the rotating shaft of the drive device vibrates.

[0050] When the rotating shaft of the drive device vibrates in the horizontal or vertical direction, it will cause the sensing surface of the vibration sensor 2 to deform, thereby converting the vibration energy of the rotating shaft of the drive device into an electrical signal.

[0051] Furthermore, to prevent the hollow sleeve shaft 11 from sliding on the rotating shaft of the drive device, which would cause the elastic component 6 to exert force on the sensing surface of the vibration sensor 2 and thus cause monitoring errors in the vibration sensor 2, protective sleeves 7 are fixedly installed at both ends of the hollow sleeve shaft 11 on the rotating shaft of the drive device. The hollow sleeve shaft 11 is locked within the gap between the two protective sleeves 7, so that the position of the hollow sleeve shaft 11 remains stable and the elastic component 6 generates vertical stress on the sensing surface of the vibration sensor 2.

[0052] like Figure 3 As shown, balance blocks 8 are set at multiple evenly distributed points on the side curved surface of the hollow sleeve shaft 11. The mass of the balance block 8 at each point is the same as the total mass of the vibration sensor 2 and the temperature sensor 3, so that the hollow sleeve shaft 11 remains stationary relative to the rotation axis of the drive device.

[0053] That is, the hollow sleeve shaft 11 is located within the gap between the two protective sleeves 7, so that the hollow sleeve shaft 11 will not slide on the rotating shaft of the drive device, ensuring that the step signal output by the vibration sensor 2 corresponds to the force applied by the elastic component 6 to the sensing surface of the vibration sensor 2 when the rotating shaft of the drive device vibrates.

[0054] Temperature sensor 3 is used to measure the surface temperature of the rotating shaft of the drive device located between the protective sleeve 7 and the hollow sleeve shaft 11. Temperature sensor 3 is located at the end of the hollow sleeve shaft 11, and the installation position of temperature sensor 3 is the same as that of vibration sensor 2.

[0055] The hollow sleeve shaft 11 has vertical annular plates 9 at both ends. The vertical annular plates 9 and the hollow sleeve shaft 11 are in an I-shaped structure. The temperature sensor 3 is installed on the vertical annular plates 9 to measure the temperature of the rotating shaft of the drive equipment.

[0056] Temperature sensor 3 is mounted on vertical annular plate 9 to measure the surface temperature of the rotating shaft of the drive device at the end of hollow sleeve shaft 11.

[0057] The central processing system 4 is used to take the output signal of the vibration sensor 2 when the rotating shaft of the drive equipment is rotating normally as the reference signal;

[0058] The central processing system 4 is used to identify step signals in the vibration sensor 2 that exceed the reference signal, and to determine the current vibration amplitude of the rotating shaft of the drive device based on the difference between the step signal and the reference signal.

[0059] The central processing system 4 is used to count the frequency of step signal occurrence and determine the vibration frequency of the rotating shaft of the drive device based on the frequency of step signal occurrence.

[0060] When the current vibration amplitude of the rotating shaft of the drive equipment exceeds the set threshold, an alarm is triggered through the alarm system connected to the output port of the central processing system 4.

[0061] When the vibration frequency of the rotating shaft of the drive equipment exceeds the set threshold, an alarm is triggered through the alarm system connected to the output port of the central processing system 4.

[0062] Temperature sensor 3 is used to measure the temperature at the location where the hollow sleeve shaft 11 is installed on the rotating shaft of the drive equipment;

[0063] When the temperature monitored by temperature sensor 3 exceeds the set threshold, an alarm is triggered through the alarm system connected to the output port of central processing system 4.

[0064] In this embodiment, an adaptive sleeve 1 is installed on the rotating shaft of the drive device. The adaptive sleeve 1 can vibrate with the rotating shaft of the drive device and can also remain stationary independently of the rotating shaft of the drive device. The vibration sensor 2 is installed on the adaptive sleeve 1 and can also remain stationary. When the rotating shaft of the drive device vibrates, the elastic component 6 located on the side of the rotating shaft of the drive device will exert pressure on the sensing surface of the vibration sensor 2, thereby converting the vibration energy generated by the rotating shaft of the drive device into an electrical signal. Therefore, in this embodiment, no friction is generated on the sensing surface of the vibration sensor 2 when measuring the rotational vibration of the drive device, thus improving the service life of the vibration sensor 2.

[0065] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A device for monitoring equipment vibration and temperature, characterized in that, include: An adaptive sleeve (1) is mounted on the rotating shaft of the drive device, and a vibration sensor (2) is mounted on the outside of the adaptive sleeve (1). The adaptive sleeve (1) is able to remain stationary independently of the rotating shaft of the drive device, and the vibration sensor (2) is used to monitor the vibration amplitude of the rotating shaft of the drive device. A temperature sensor (3) is installed on the adaptive sleeve shaft (1), and the temperature sensor (3) is used to monitor the temperature of the rotating shaft of the drive device; Both the vibration sensor (2) and the temperature sensor (3) are connected to a central processing system (4), which is used to receive the output signal of the vibration sensor (2) and the output signal of the temperature sensor (3). The central processing system (4) determines the vibration amplitude of the rotating shaft of the drive device based on the output signal of the vibration sensor (2), and determines the temperature of the rotating shaft of the drive device based on the output signal of the temperature sensor (3), and alarms when the vibration amplitude and temperature of the rotating shaft of the drive device exceed the set threshold.

2. The device for monitoring equipment vibration and temperature according to claim 1, characterized in that, The adaptive sleeve (1) includes a hollow sleeve (11) and a plurality of evenly distributed spherical slots (12) provided on the inner wall of the hollow sleeve (11). A sphere (13) that can rotate freely is installed in the spherical slot (12). The hollow sleeve (11) is kept stationary by the sphere (13) when the rotating shaft of the drive device rotates.

3. The device for monitoring equipment vibration and temperature according to claim 2, characterized in that, The rotating shaft of the drive device is provided with an inclined support frame (5) on its side, and the end of the inclined support frame (5) is fixedly connected to the sensing surface of the vibration sensor (2) through an elastic component (6). When the rotating shaft of the drive device rotates normally, the elastic component (6) just contacts the sensing surface of the vibration sensor (2). When the rotating shaft of the drive device vibrates, the elastic component (6) will apply pressure to the sensing surface of the vibration sensor (2), causing the sensing surface of the vibration sensor (2) to deform. The vibration sensor (2) converts the vibration energy of the rotating shaft of the drive device into an electrical signal. The other sides of the vibration sensor (2) are fixedly mounted on the surface of the hollow sleeve shaft (11), and the position of the vibration sensor (2) remains stationary relative to the rotation axis of the drive device.

4. The device for monitoring equipment vibration and temperature according to claim 3, characterized in that, The rotating shaft of the drive device is fixedly installed with protective sleeves (7) at both ends of the hollow sleeve shaft (11). The hollow sleeve shaft (11) is locked in the gap between the two protective sleeves (7) so that the position of the hollow sleeve shaft (11) remains stable and the elastic component (6) generates vertical stress on the sensing surface of the vibration sensor (2). The temperature sensor (3) is used to measure the surface temperature of the rotating shaft of the drive device located between the protective sleeve (7) and the hollow sleeve shaft (11).

5. The device for monitoring equipment vibration and temperature according to claim 4, characterized in that, The temperature sensor (3) is disposed at the end of the hollow sleeve shaft (11), and the installation position of the temperature sensor (3) is the same as the installation position of the vibration sensor (2). Balance blocks (8) are set at multiple evenly distributed points on the side curved surface of the hollow sleeve shaft (11). The mass of the balance block (8) at each point is the same as the total mass of the vibration sensor (2) and the temperature sensor (3), so that the hollow sleeve shaft (11) remains stationary relative to the rotation axis of the drive device.

6. A device for monitoring equipment vibration and temperature according to claim 1 or 5, characterized in that, The hollow sleeve shaft (11) has vertical annular plates (9) at both ends. The vertical annular plates (9) and the hollow sleeve shaft (11) are in an I-shaped structure. The temperature sensor (3) is installed on the vertical annular plates (9) to measure the temperature of the rotating shaft of the drive device.

7. The device for monitoring equipment vibration and temperature according to claim 1, characterized in that, The central processing system (4) is used to take the output signal of the drive device when the vibration sensor (2) monitors the normal rotation of the rotating shaft as a reference signal; The central processing system (4) is used to identify step signals in the vibration sensor (2) that exceed the reference signal, and to determine the current vibration amplitude of the rotating shaft of the drive device based on the difference between the step signal and the reference signal. The central processing system (4) is used to count the frequency of the step signal and determine the vibration frequency of the rotating shaft of the drive device based on the frequency of the step signal.

8. The device for monitoring equipment vibration and temperature according to claim 7, characterized in that, When the current vibration amplitude of the rotating shaft of the drive device exceeds a set threshold, an alarm is triggered by the alarm system connected to the output port of the central processing system (4); When the vibration frequency of the rotating shaft of the drive device exceeds a set threshold, an alarm is triggered by the alarm system connected to the output port of the central processing system (4).

9. The device for monitoring equipment vibration and temperature according to claim 7, characterized in that, The temperature sensor (3) is used to measure the temperature at the position where the hollow sleeve shaft (11) is installed on the rotating shaft of the drive device; When the temperature monitored by the temperature sensor (3) exceeds the set threshold, an alarm is triggered by the alarm system connected through the output port of the central processing system (4).

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