A rotating body on-line monitoring device

Abstract

The utility model discloses a kind of rotary body online monitoring devices, including including support, strain element, processor and shell. Shell is located on rotary body, support and processor are located in shell, and rotate with rotary body, support includes fixed part and deformation part, strain element is attached on deformation part, when rotary body rotates, deformation part drives strain element to occur deformation;Processor is connected with strain element, for the strain element generated deformation signal is converted to digital model and sent to terminal. The utility model does not need additional complex auxiliary structure, only by support and strain element, the rotational speed measurement of rotary body can be realized, its structure is simple, and the space occupied is smaller, and original structure of rotary body is not needed to change, application range is wide, and use cost is reduced. Support, strain element and processor are isolated from outside world by shell, prevent the influence of external environmental factors to electronic components, ensure that device normal stable operation.

Description

Technical Field

[0001] This utility model relates to the field of monitoring technology, and in particular to an online monitoring device for rotating bodies. Background Technology

[0002] In mechanical engineering, rotating bodies are widely used as components in mechanical devices. To understand the operating state of rotating machinery, it is necessary to measure the rotational speed of the rotating bodies.

[0003] Currently, common speed measurement devices include Hall effect magnetic induction sensors and laser sensors. However, these sensors require the installation of detection devices and signal transmission devices very close to the rotating body, which not only takes up space, but also makes the sensors susceptible to external environmental factors (such as electromagnetic interference, water mist spray, smoke, high temperature, etc.) during use, resulting in inaccurate measurement results. Utility Model Content

[0004] The main objective of this invention is to provide an online monitoring device for rotating bodies, which aims to solve the aforementioned technical problems.

[0005] The technical problem solved by this utility model is achieved by the following technical solution:

[0006] An online monitoring device for a rotating body, characterized in that it includes a support, a strain element, a processor, and a housing;

[0007] The housing is disposed on the rotating body;

[0008] Both the support and the processor are located within the housing and rotate with the rotating body;

[0009] The support includes a fixed part and a deformable part that are connected to each other, and the strain element is attached to the deformable part;

[0010] When the rotating body rotates, the deformable part is deformed by centrifugal force, which in turn causes the strain element to deform.

[0011] The processor is connected to the strain element and is used to convert the deformation signal generated by the strain element into a digital-to-analog converter and send it to the terminal.

[0012] In some embodiments, the housing includes a cover and a base;

[0013] The base is detachably connected to the end of the cover, and together with the cover, they form a receiving cavity for accommodating the support and the processor.

[0014] In some embodiments, the processor includes a trigger module, a power supply module, and a main control circuit;

[0015] The triggering module is connected to the power supply module and the main control circuit respectively, and the main control circuit is connected to the strain element.

[0016] In some embodiments, the main control circuit includes:

[0017] A power supply module is connected to the trigger module and the strain element, respectively.

[0018] The signal analysis module is connected to the strain element;

[0019] The signal transmitting module is connected to the signal parsing module;

[0020] The signal receiving module has its signal input terminal connected to the signal transmitting module and its signal output terminal connected to the terminal.

[0021] In some embodiments, the power supply module includes an energy storage unit and a power supply unit connected to the energy storage unit.

[0022] In some embodiments, it also includes:

[0023] A temperature monitoring module disposed on the rotating body or the processor for monitoring the temperature of the rotating body; and / or

[0024] A vibration monitoring module disposed on the rotating body or the processor for monitoring the vibration of the rotating body.

[0025] In some embodiments, it also includes:

[0026] A counterweight is located inside the housing, and the counterweight and the support are arranged symmetrically along the radial direction of the rotating body.

[0027] In some embodiments, both the support member and the processor are disposed on the housing.

[0028] In some embodiments, the deformable portion is perpendicular to the plane of rotation of the rotating body.

[0029] In some embodiments, the support member is L-shaped.

[0030] The beneficial effects of this utility model are:

[0031] This utility model discloses an online monitoring device for a rotating body. When the rotating body rotates, it drives the support component to rotate as well. Due to centrifugal force, the deformable part undergoes a certain degree of deformation. As the deformable part continues to deform, the strain gauge also deforms and generates deformation signals. These deformation signals are transmitted to a processor, which performs digital-to-analog conversion on the deformation signals before sending them to the terminal. The terminal calculates the rotational speed of the rotating body based on the received voltage signals.

[0032] The online monitoring device for rotating bodies provided in the above embodiments requires no additional complex auxiliary structures. It can measure the rotational speed of a rotating body simply through the cooperation of a support component and a strain gauge. The installation positions of the support component and strain gauge are flexible; they only need to rotate synchronously with the rotating body and deform under stress. Its structure is simple, occupies little space, and does not require alteration to the original structure of the rotating body, making it widely applicable and reducing operating costs. Furthermore, the strain gauge is directly attached to the deformed part, effectively improving measurement accuracy. The housing isolates the support component, strain gauge, and processor from the external environment, preventing the influence of external environmental factors such as water mist, dust, high temperatures, and electromagnetic interference on the electronic components, ensuring the normal and stable operation of the device. Attached Figure Description

[0033] 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 from these drawings without creative effort.

[0034] Figure 1 This is a three-dimensional structural diagram of the rotating body online monitoring device according to an embodiment of the present utility model;

[0035] Figure 2 This is a three-dimensional structural diagram of the rotating body online monitoring device according to an embodiment of the present invention (hiding the terminal and signal receiving module).

[0036] Figure 3 This is a three-dimensional structural diagram of the rotating body online monitoring device according to an embodiment of the present invention (hidden terminal, signal receiving module, and cover).

[0037] Figure 4 This is a front view of the processor in the online monitoring device for rotating bodies according to an embodiment of the present invention;

[0038] Figure 5 for Figure 3 The front view (the rotating body is at rest);

[0039] Figure 6 for Figure 3 The main view (rotation state of the rotating body).

[0040] The above figure labels:

[0041] 100 - Rotating body; 200 - Terminal;

[0042] 10-Supporting component; 11-Fixing part; 12-Deformable part;

[0043] 20 - Strain gauge element;

[0044] 30 - Processor; 31 - Trigger module; 32 - Power supply module; 33 - Main control circuit; 331 - Power supply module; 332 - Signal parsing module; 333 - Signal transmitting module; 334 - Signal receiving module;

[0045] 40 - Shell; 41 - Cover; 42 - Base;

[0046] 50-counterweight;

[0047] 60 - Temperature monitoring module;

[0048] 70 - Vibration monitoring module. Detailed Implementation

[0049] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0050] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0051] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention 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. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0052] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0053] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0054] In related technologies, Hall effect magnetic induction sensors and laser sensors are generally used to measure the rotational speed of rotating machinery. However, these sensors require the detection and signal transmission devices to be installed very close to the rotating body, which not only occupies space, but also makes the sensors susceptible to external environmental factors (such as electromagnetic interference, water mist spray, smoke, high temperature, etc.), resulting in inaccurate measurement results.

[0055] In view of this, this application provides an online monitoring device for rotating bodies, such as... Figures 1 to 6 As shown, the rotating body online monitoring device includes a support 10, a strain element 20, a processor 30, and a housing 40.

[0056] The housing 40 is disposed on the rotating body 100, and it may or may not rotate with the rotating body 100.

[0057] Both the support member 10 and the processor 30 are located within the housing 40 and rotate with the rotating body 100. The support member 10 and the processor 30 can be mounted on the rotating body 100 or on the housing 40. Specifically, the housing 40 can rotate or remain stationary. When the housing 40 does not rotate with the rotating body 100, both the support member 10 and the processor 30 are mounted on the rotating body 100 and rotate synchronously with it. The housing 40 surrounds the support member 10 and the processor 30, providing protection against external environmental factors such as water mist, dust, high temperatures, and electromagnetic interference, ensuring the normal and stable operation of the device. As another example, the housing 40 can be fixedly connected to the rotating body 100 using screws, clips, or other fasteners. Both the support member 10 and the processor 30 can be mounted on the housing 40 and rotate synchronously with the rotating body 100. In this example, the housing 40 not only protects the support member 10 and the processor 30 but also provides support.

[0058] The support member 10 may include a fixing part 11 and a deformation part 12. The fixing part 11 is fixedly connected to the rotating body 100 or the housing 40, and the deformation part 12 is connected to the other end of the fixing part 11. The strain element 20 is attached to the deformation part 12.

[0059] When the rotating body 100 rotates, the deformable part 12 is deformed by centrifugal force, which in turn causes the strain element 20 to deform.

[0060] The processor 30 is connected to the strain gauge 20 and is used to convert the deformation signal generated by the strain gauge 20 into a digital signal and send it to the terminal 200.

[0061] Using the online monitoring device for the rotating body provided in the above embodiments, when the rotating body 100 rotates, it will drive the support member 10 to rotate together. Due to the centrifugal force, the deformation part 12 will undergo a certain degree of deformation. As the deformation part 12 continues to deform, the strain element 20 will also deform accordingly and generate deformation signals. These deformation signals are transmitted to the processor 30, which performs digital-to-analog conversion on the deformation signals and then sends them to the terminal 200. The terminal 200 calculates the rotational speed of the rotating body 100 based on the received voltage signals.

[0062] The online monitoring device for rotating bodies provided in the above embodiments requires no additional complex auxiliary structures. It can measure the rotational speed of the rotating body 100 simply by using the support member 10 and the strain element 20. The installation positions of the support member 10 and the strain element 20 are flexible; they only need to rotate synchronously with the rotating body 100 and deform under stress. Its structure is simple, occupies little space, and does not require alteration of the original structure of the rotating body, making it widely applicable and reducing operating costs. Furthermore, the strain element 20 is directly attached to the deformed part 12, effectively improving measurement accuracy. The housing 40 isolates the support member 10, strain element 20, and processor 30 from the external environment, preventing the influence of external environmental factors such as water mist, dust, high temperatures, and electromagnetic interference on the electronic components, ensuring the normal and stable operation of the device.

[0063] In some embodiments, the specific structure and material of the support member 10 are not limited. For example, the support member 10 may be T-shaped, L-shaped, etc., and its material may be plastic or elastic metal.

[0064] The fixing part 11 and the deforming part 12 are fixedly connected. They can be an integral structure or fixedly connected by welding, bonding or other methods. The fixing part 11 and the deforming part 12 can be directly connected or indirectly connected through other structures.

[0065] It should be noted that, in order for the deformable portion 12 to have obvious elastic deformation characteristics when the support member 10 rotates, the extension direction of the deformable portion 12 needs to form an angle with the rotation plane of the rotating body 100. In the embodiments of this application, the deformable portion 12 is perpendicular to the rotation plane of the rotating body 100, so that when the support member 10 is subjected to centrifugal force, the deformable portion 12 will produce a more obvious deformation.

[0066] The strain element 20 can be selected from various types, as long as it can generate an electrical signal in response to the applied stress, such as a strain gauge or a strain sensor. In the embodiments of this application, the strain element 20 is specifically a strain gauge, which can be glued to the deformation part 12. The specific bonding method and type of glue are not limited, but it is necessary to ensure that the strain gauge is in close contact with the surface of the deformation part 12 to ensure the accuracy of the measurement results. The strain gauge is detachably connected to the deformation part 12 by gluing, which facilitates its adjustment and disassembly, and allows for timely replacement when the strain gauge is damaged.

[0067] The support member 10 and the strain element 20 can be provided in two sets, and the two sets of support members 10 and strain element 20 are arranged symmetrically along the radial direction of the rotating body 100.

[0068] like Figure 3 As shown, the processor 30 may include a trigger module 31, a power supply module 32, and a main control circuit 33. The trigger module 31 is connected to the power supply module 32 and the main control circuit 33, respectively. The main control circuit 33 is connected to the strain element 20 and is used to convert the deformation signal generated by the strain element 20 into a digital-to-analog conversion signal and send it to the terminal 200.

[0069] The trigger module 31 can be any component capable of touch control, such as a micro switch or a touchpad. The buttons of the trigger module 31 are exposed on the surface of the housing 40 for easy user operation.

[0070] The power supply module 32 is used to provide power to the main control circuit 33. The power supply module 32 may include an energy storage unit and a power supply unit connected to the energy storage unit. The energy storage unit may be a battery, and the power supply unit and the energy storage unit may be connected by wire or wireless means.

[0071] like Figure 4 As shown, the main control circuit 33 may include a power supply module 331, a signal analysis module 332, a signal transmission module 333, and a signal receiving module 334. The power supply module 331 is connected to the trigger module 31 and the strain element 20 respectively; the signal analysis module 332 is connected to the strain element 20; the signal transmission module 333 is connected to the signal analysis module 332; the signal input terminal of the signal receiving module 334 is wirelessly connected to the signal transmission module 333, and the signal output terminal is connected to the terminal 200.

[0072] The user activates the processor 30 via the trigger module 31. When the rotating body 100 rotates, it drives the support member 10 to rotate. The support member 10 is subjected to centrifugal force, causing the deformation part 12 to deform to a certain extent. As the deformation part 12 continues to deform, the strain element 20 also deforms. The deformation signal generated by the strain element 20 is transmitted to the signal analysis module 332. After receiving the deformation signal, the signal analysis module 332 converts it into an electrical signal and transmits it to the terminal 200 through the signal transmission module 333 and the signal reception module 334. After receiving the electrical signal, the terminal 200 calculates the rotational speed of the rotating body 100 based on the electrical signal. The electrical signal can be a voltage signal or a current signal.

[0073] It should be noted that the schemes for converting deformation signals into electrical signals and for calculating rotational speed based on electrical signals can refer to existing technologies, and will not be elaborated here.

[0074] like Figure 2 and Figure 3 As shown, the housing 40 may include a cover 41 and a base 42. The specific shape of the cover 41 is not limited here; for example, it can be circular, square, etc. This embodiment describes the cover 41 as circular. The cover 41 can be fitted onto the outside of the rotating body 100, with at least one end being open. The base 42 can be detachably connected to the open end of the cover 41 by screws, snap-fits, or other means, forming a receiving cavity together with the cover 41. The support member 10 and the processor 30 are both disposed within the receiving cavity and mounted on the base 42. By making the housing 40 a detachably connected cover 41 and base 42, it is convenient to maintain and replace the electronic components installed inside.

[0075] In some embodiments of this application, the online monitoring device for the rotating body may further include a temperature monitoring module 60 and / or a vibration monitoring module 70. That is, the online monitoring device for the rotating body may include both a temperature monitoring module 60 and a vibration monitoring module 70, or only a temperature monitoring module 60, or only a vibration monitoring module 70. Both the temperature monitoring module 60 and the vibration monitoring module 70 can be directly mounted on the rotating body 100 or mounted on the processor 30. The temperature monitoring module 60 is used to monitor the temperature of the rotating body 100 during operation, and it can be any element with temperature measurement function, such as a thermocouple. The vibration monitoring module 70 is used to monitor the vibration generated by the rotating body 100 during operation, and it can be any element with vibration measurement function, such as a vibration sensor.

[0076] In some embodiments of this application, the online monitoring device for the rotating body may further include a counterweight 50. The counterweight 50 and the support member 10 are arranged symmetrically along the radial direction of the rotating body 100. The installation position of the counterweight 50 can be determined based on the installation position of the support member 10. For example, if the support member 10 is installed on the rotating body 100, the counterweight 50 is also installed on the rotating body 100; if the support member 10 is installed on the housing 40, the counterweight 50 can also be installed on the housing 40. By setting the counterweight 50, the monitoring device can have good dynamic balance, avoiding additional vibration effects on the rotating body 100 and further improving measurement accuracy.

[0077] 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 process, method, article, or apparatus.

[0078] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. An online monitoring device for rotating bodies, characterized in that, It includes a support (10), a strain element (20), a processor (30), and a housing (40); The housing (40) is disposed on the rotating body (100); The support (10) and the processor (30) are both located inside the housing (40) and rotate with the rotating body (100); The support member (10) includes a fixed part (11) and a deformable part (12) connected to each other, and the strain element (20) is attached to the deformable part (12); When the rotating body (100) rotates, the deformable part (12) is deformed by centrifugal force, which in turn causes the strain element (20) to deform. The processor (30) is connected to the strain element (20) and is used to convert the deformation signal generated by the strain element (20) into digital and send it to the terminal (200).

2. The online monitoring device for rotating bodies according to claim 1, characterized in that, The housing (40) includes a cover (41) and a base (42); The base (42) is detachably connected to the end of the cover (41) and together with the cover (41) forms a receiving cavity for accommodating the support (10) and the processor (30).

3. The online monitoring device for rotating bodies according to claim 1, characterized in that, The processor (30) includes a trigger module (31), a power supply module (32), and a main control circuit (33). The trigger module (31) is connected to the power supply module (32) and the main control circuit (33) respectively, and the main control circuit (33) is connected to the strain element (20).

4. The online monitoring device for rotating bodies according to claim 3, characterized in that, The main control circuit (33) includes: The power supply module (331) is connected to the trigger module (31) and the strain element (20) respectively. The signal analysis module (332) is connected to the strain element (20); The signal transmitting module (333) is connected to the signal parsing module (332); The signal receiving module (334) has its signal input terminal connected to the signal transmitting module (333) and its signal output terminal connected to the terminal (200).

5. The online monitoring device for rotating bodies according to claim 3, characterized in that, The power supply module (32) includes an energy storage unit and a power supply unit connected to the energy storage unit.

6. The online monitoring device for rotating bodies according to any one of claims 1 to 5, characterized in that, Also includes: A temperature monitoring module (60) disposed on the rotating body (100) or the processor (30) for monitoring the temperature of the rotating body (100); and / or A vibration monitoring module (70) disposed on the rotating body (100) or the processor (30) for monitoring the vibration of the rotating body (100).

7. The online monitoring device for rotating bodies according to any one of claims 1 to 5, characterized in that, Also includes: The counterweight (50) is located inside the housing (40), and the counterweight (50) and the support (10) are arranged symmetrically along the radial direction of the rotating body (100).

8. The online monitoring device for rotating bodies according to claim 1 or 2, characterized in that, Both the support member (10) and the processor (30) are disposed on the housing (40).

9. The online monitoring device for rotating bodies according to any one of claims 1 to 5, characterized in that, The deformable part (12) is perpendicular to the plane of rotation of the rotating body (100).

10. The online monitoring device for rotating bodies according to claim 9, characterized in that, The support member (10) is L-shaped.

Images