CN114674551A - Method, device and system for monitoring abrasion energy of gear and electronic equipment - Google Patents
Method, device and system for monitoring abrasion energy of gear and electronic equipment Download PDFInfo
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Abstract
The embodiment of the application provides a method, a device and a system for monitoring wear energy of a gear, electronic equipment and a storage medium, wherein the method comprises the following steps: obtaining discrete node data corresponding to a discrete node in a gear meshing area; obtaining the relative displacement of the gear meshing area in the z-axis direction and the relative displacement of the discretization node in the x-axis direction according to the discretization node data; acquiring the abrasion energy of the discretization node in the z-axis direction according to the relative displacement in the z-axis direction; acquiring the abrasion energy of the discretization node in the x-axis direction according to the relative displacement in the x-axis direction; and obtaining the wear energy of the gear according to the wear energy in the z-axis direction and the wear energy in the x-axis direction. By implementing the embodiment of the application, the abrasion condition of the gear can be found in time, early prevention is well done, and the cost is reduced.
Description
Technical Field
The application relates to the technical field of gear energy monitoring, in particular to a method, a device and a system for monitoring wear energy of a gear, electronic equipment and a computer readable storage medium.
Background
The existing gear fatigue testing method is developed on a gear testing machine. And when the contact fatigue failure of the tooth surface occurs or the number of times of the stress cycle of the tooth surface reaches a specified cycle failure base number, terminating the test, and obtaining life data of the tooth surface under the test stress. And (4) determining a contact fatigue characteristic curve and a contact fatigue limit stress of the test gear through statistical processing of test data.
However, the existing gear fatigue testing method needs to carry out long-time repeated cyclic loading, has very high dependence on manpower, causes low fatigue durability testing efficiency, consumes large time and labor cost, and has non-standard judgment standards. In addition, the existing gear fatigue testing method cannot monitor the abrasion condition of the gear tooth surface in real time in the testing process, cannot find and generate a report in time at the initial stage of gear fatigue failure, and is not beneficial to early prevention of gear fatigue failure.
Disclosure of Invention
An embodiment of the application aims to provide a method and a device for monitoring wear energy of a gear, electronic equipment and a computer-readable storage medium, which can find the wear condition of the gear in time and make early prevention.
In a first aspect, an embodiment of the present application provides a method for monitoring wear energy of a gear, where the method includes:
Obtaining discrete node data corresponding to a discrete node of a gear meshing area;
obtaining the relative displacement of the gear meshing area in the z-axis direction and the relative displacement of the discretization node in the x-axis direction according to the discretization node data;
acquiring the abrasion energy of the discretization node in the z-axis direction according to the relative displacement in the z-axis direction;
acquiring the abrasion energy of the discretization node in the x-axis direction according to the relative displacement in the x-axis direction;
and obtaining the wear energy of the gear according to the wear energy in the z-axis direction and the wear energy in the x-axis direction.
In the implementation process, the wear energy of the gear on the z axis and the x axis is obtained according to the discretization node data of the gear meshing area, and finally the wear energy of the discretization node is obtained, so that the accuracy of monitoring the wear energy of the gear is ensured, the early prevention of the wear condition of the gear is improved, and the cost loss is reduced.
Further, the step of obtaining the relative displacement of the gear meshing region in the z-axis direction and the relative displacement of the discretization node in the x-axis direction according to the discretization node data includes:
obtaining the relative displacement of the discretization node in the z-axis direction according to the following formula:
Obtaining the relative displacement of the discretization node in the x-axis direction according to the following formula:
wherein, Δ ziFor the relative displacement of the discretized nodes in the z-axis direction,
to discretize the mode shape coefficient of the node a in the z-axis direction,
for discretizing the mode shape coefficient of node B in the z-axis direction, Δ xiFor the relative displacement of the discretized junction in the x-axis direction,
to discretize the mode shape coefficient of the node a in the x-axis direction,
for discretizing node B in x-axis directionAnd (4) vibration mode coefficient.
In the implementation process, the relative displacement of the discretization node in the x axis and the relative displacement of the discretization node in the z axis are obtained, and the fact that the discretization node is abraded in multiple directions can be monitored, so that abrasion energy can be monitored more accurately.
Further, the step of obtaining the wear energy of the discretization node in the z-axis direction according to the relative displacement in the z-axis direction includes:
and obtaining the stress of the discretization node in the z-axis direction according to the following formula:
and acquiring the abrasion energy of the discretization node in the z-axis direction according to the stress of the discretization node in the z-axis direction, wherein the formula is as follows:
wherein E isi(z)For the wear energy of the discretized junction in the z-axis direction, F i(z)Is the stress of the discretization node in the z-axis direction, k is the contact rigidity,
to discretize the displacement of node a in the z-axis direction,
is the z-axis instantaneous velocity of the discretized junction a,
to discretize the displacement of the node B in the z-axis direction,
is the z-axis instantaneous velocity of the discretized node B.
In the implementation process, the abrasion energy of the discretization node in the z-axis direction is obtained, errors can be reduced, the abrasion energy can be monitored more comprehensively, and the gear is prevented from being broken due to excessive abrasion and loss is avoided.
Further, the step of obtaining the wear energy of the discretization node in the x-axis direction according to the relative displacement in the x-axis direction includes:
and obtaining the stress of the discretization node in the x-axis direction according to the following formula:
and acquiring the abrasion energy of the discretization node in the z-axis direction according to the stress of the discretization node in the z-axis direction, wherein the formula is as follows:
wherein E isi(x)For the wear energy of the discretized junction in the x-axis direction, Fi(x)Is the stress of the discretization joint in the direction of the x axis, k is the contact rigidity,
to discretize the displacement of node a in the x-axis direction,
is the x-axis instantaneous velocity of the discretized junction a,
to discretize the displacement of the node B in the x-axis direction, 
Is the x-axis instantaneous velocity of the discretized node B.
In the implementation process, the abrasion energy of the discretization node in the x-axis direction is obtained, errors can be reduced, and the gear is guaranteed not to be damaged due to the fact that the stress of the gear in the x-axis direction is too large, so that the abrasion energy is monitored more comprehensively, unnecessary damage is further avoided, and the service life of the gear is prolonged.
Further, the wear energy of the gear is obtained from the wear energy in the z-axis direction and the wear energy in the x-axis direction by the following formula:
wherein E isi(z)For the wear energy of the discretized junction in the z-axis direction, Ei(x)The abrasion energy of the discretization node in the x-axis direction is shown, and E is the abrasion energy of the gear.
In the implementation process, the change and the abrasion condition of each discretization node of the gear in the gear operation process can be monitored completely, the gear abrasion condition can be analyzed and monitored conveniently, and the authenticity and the effectiveness of the monitoring of the gear are guaranteed.
Further, the step of obtaining discretization node data corresponding to the discretization node of the gear meshing area includes:
acquiring node data corresponding to the discrete node of the gear meshing area;
And discretizing the node data to obtain discretized node data.
In the implementation process, the node data of the gear meshing area is discretized, so that the data obtained in the monitoring process is more referential, and the phenomena that the obtained gear is not accurately stressed and the monitoring of the abrasion energy of the gear generates errors are avoided.
In a second aspect, embodiments of the present application further provide a device for monitoring wear energy of a gear, the device including:
the data acquisition module is used for acquiring discrete node data corresponding to a discrete node in a gear meshing area;
a relative displacement obtaining module, configured to obtain, according to the discretization node data, a relative displacement of the gear meshing region in the z-axis direction and a relative displacement of the discretization node in the x-axis direction;
the z-axis abrasion energy obtaining module is used for obtaining abrasion energy of the discretization node in the z-axis direction according to the relative displacement in the z-axis direction;
the x-axis abrasion energy obtaining module is used for obtaining abrasion energy of the discretization node in the x-axis direction according to the relative displacement in the x-axis direction;
and the abrasion energy obtaining module is used for obtaining abrasion energy of the gear according to the abrasion energy in the z-axis direction and the abrasion energy in the x-axis direction.
In the implementation process, the wear energy of the gear on the z axis and the x axis is obtained according to the discrete node data of the gear meshing area, and finally the wear energy of the discrete node is obtained, so that the accuracy of monitoring the wear energy of the gear is ensured, the early prevention of the wear condition of the gear is improved, and the cost loss is reduced.
In a third aspect, an embodiment of the present application provides a system for monitoring wear energy of a gear, including: the device comprises a driving motor, a load motor, a driving gear, a load gear, a high-precision camera, a torque and rotation speed sensor, a gear abrasion energy monitoring device, a real-time monitoring and early warning device and a lighting device;
wherein, the monitoring devices of the wear energy of the gear includes:
the data acquisition module is used for acquiring discrete node data corresponding to a discrete node in a gear meshing area;
a relative displacement obtaining module, configured to obtain, according to the discretization node data, a relative displacement of the gear meshing region in the z-axis direction and a relative displacement of the discretization node in the x-axis direction;
the z-axis abrasion energy obtaining module is used for obtaining abrasion energy of the discretization node in the z-axis direction according to the relative displacement in the z-axis direction;
The x-axis abrasion energy obtaining module is used for obtaining abrasion energy of the discretization node in the x-axis direction according to the relative displacement in the x-axis direction;
and the abrasion energy obtaining module is used for obtaining the abrasion energy of the gear according to the abrasion energy in the z-axis direction and the abrasion energy in the x-axis direction.
In a fourth aspect, an embodiment of the present application provides an electronic device, including: memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to any of the first aspect when executing the computer program.
In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, having stored thereon instructions, which, when executed on a computer, cause the computer to perform the method according to any one of the first aspect.
In a sixth aspect, an embodiment of the present application provides a computer program product, which when run on a computer, causes the computer to perform the method according to any one of the first aspect.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part may be learned by the practice of the above-described techniques of the disclosure, or may be learned by practice of the disclosure.
The present invention can be implemented in accordance with the content of the specification, and the following detailed description of the preferred embodiments of the present application is made with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic flow chart of a method for monitoring wear energy of a gear according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a meshing area of a gear provided by an embodiment of the present application;
FIG. 3 is a schematic structural component diagram of a device for monitoring wear energy of a gear according to an embodiment of the present disclosure;
fig. 4 is a schematic structural component diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
The following detailed description of embodiments of the present application will be described in conjunction with the accompanying drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
Example one
Fig. 1 is a schematic flow chart of a method for monitoring wear energy of a gear according to an embodiment of the present application, where the method includes:
s1, obtaining discrete node data corresponding to the discrete node of the gear meshing area;
s2, obtaining the relative displacement of the gear meshing area in the z-axis direction and the relative displacement of the discretization node in the x-axis direction according to the discretization node data;
s3, acquiring the wear energy of the discretization node in the z-axis direction according to the relative displacement in the z-axis direction;
s4, obtaining the abrasion energy of the discretization node in the x-axis direction according to the relative displacement in the x-axis direction;
and S5, obtaining the abrasion energy of the gear according to the abrasion energy in the z-axis direction and the abrasion energy in the x-axis direction.
In the implementation process, the wear energy of the gear on the z axis and the x axis is obtained according to the discretization node data of the gear meshing area, and finally the wear energy of the discretization node is obtained, so that the accuracy of monitoring the wear energy of the gear is ensured, the early prevention of the wear condition of the gear is improved, and the cost loss is reduced.
Further, S1 includes:
acquiring node data corresponding to discrete nodes in a gear meshing area;
and discretizing the node data to obtain discretized node data.
In the implementation process, the node data of the gear meshing area is discretized, so that the data obtained in the monitoring process is more referential, and the phenomena that the obtained gear is not accurately stressed and the monitoring of the abrasion energy of the gear generates errors are avoided.
Illustratively, the node discretization is performed on the gear mesh region, as shown in fig. 2, a point a is at the contact region on the driving gear at a time, a point at the load gear contact region opposite thereto is a point B, the point a and the point B are referred to as an ith pair of discretization nodes, and the entire gear contact region can be divided into n pairs of discretization nodes (the value of n is the same as the number of the divided sub-regions of the digital image correlation method).
Further, S2 includes:
obtaining the relative displacement of the discretization node in the z-axis direction according to the following formula:
obtaining the relative displacement of the discretization node in the x-axis direction according to the following formula:
wherein, Δ ziFor discretizing the relative displacement of the nodes in the z-axis direction,
to discretize the mode shape coefficient of the node a in the z-axis direction, 
For discretizing the mode shape coefficient, Δ x, of node B in the z-axis directioniTo discretize the relative displacement of the nodes in the x-axis direction,
to discretize the mode shape coefficient of node a in the x-axis direction,
discretizing the mode shape coefficient of the node B in the x-axis direction.
In the implementation process, the relative displacement of the discretization node in the x axis and the relative displacement of the discretization node in the z axis are obtained, and the fact that the discretization node is abraded in multiple directions can be monitored, so that abrasion energy can be monitored more accurately.
Further, S3 includes:
and obtaining the stress of the discretization node in the z-axis direction according to the following formula:
the abrasion energy of the discretization node in the z-axis direction is obtained according to the stress of the discretization node in the z-axis direction, and the formula is as follows:
wherein E isi(z)For discretizing the wear energy of the junction in one vibration period T in the z-axis direction, Fi(z)The stress of the discretization node in the z-axis direction is realized, k is the contact rigidity, and the value is usually 10 according to different materials7～1010The constant value of N/m is obtained,
for discrete junctionsThe displacement of point a in the z-axis direction,
is the z-axis direction instantaneous velocity of the discretized junction a,
to discretize the displacement of the node B in the z-axis direction,
is the z-axis instantaneous velocity of the discretized node B.
In the implementation process, the abrasion energy of the discretization node in the z-axis direction is obtained, errors can be reduced, the abrasion energy can be monitored more comprehensively, and the gear is prevented from being broken due to excessive abrasion and loss is avoided.
Wherein the displacements of point A and point B are respectively recorded as
And
displacement UiThe mode shape coefficient x from two directionsiAnd ziThe composition is as follows. The motion form in each direction can be written as a simple harmonic motion equation:
wherein phi isi(z)Is the amplitude in the z-axis direction, phii(x)Is the amplitude in the x-axis direction, ω is the vibration frequency, θi(z)Is the phase of the z-axis, θi(x)Is the phase of the x-axis.
Further, S4 includes:
and obtaining the stress of the discretization node in the x-axis direction according to the following formula:
the abrasion energy of the discretization node in the z-axis direction is obtained according to the stress of the discretization node in the z-axis direction, and the formula is as follows:
wherein E isi(x)For discretizing the wear energy of the junction in one vibration period T in the x-axis direction, Fi(x)The stress of the discretization node in the x-axis direction is realized, k is the contact rigidity, and the value is usually 10 according to different materials7～1010The constant value of N/m is obtained,
to discretize the displacement of node a in the x-axis direction,
is the x-axis instantaneous velocity of the discretized junction a,
to discretize the displacement of the node B in the x-axis direction,
is the x-axis instantaneous velocity of the discretized node B.
In the implementation process, the abrasion energy of the discretization node in the x-axis direction is obtained, errors can be reduced, and the gear is guaranteed not to be damaged due to the fact that the stress of the gear in the x-axis direction is too large, so that the abrasion energy is monitored more comprehensively, unnecessary damage is further avoided, and the service life of the gear is prolonged.
Further, in S5, the wear energy of the gear is obtained from the wear energy in the z-axis direction and the wear energy in the x-axis direction by the following formula:
wherein E isi(z)For discretizing the wear energy of the junction in one vibration period T in the z-axis direction, Ei(x)The abrasion energy of the discretization node in one vibration period T in the x-axis direction is shown, and E is the abrasion energy of the gear.
In the implementation process, the change and the abrasion condition of each discretization node of the gear in the gear operation process can be monitored completely, the gear abrasion condition can be analyzed and monitored conveniently, and the authenticity and the effectiveness of the monitoring of the gear are guaranteed.
Example two
In order to implement a corresponding method of the above-described embodiments to achieve corresponding functions and technical effects, there is provided a device for monitoring wear energy of a gear, as shown in fig. 3, the device comprising:
the data acquisition module 1 is used for acquiring discrete node data corresponding to a discrete node in a gear meshing area;
the relative displacement obtaining module 2 is used for obtaining the relative displacement of the gear meshing area in the z-axis direction and the relative displacement of the discretization node in the x-axis direction according to the discretization node data;
The z-axis abrasion energy obtaining module 3 is used for obtaining abrasion energy of the discretization node in the z-axis direction according to the relative displacement in the z-axis direction;
the x-axis abrasion energy obtaining module 4 is used for obtaining abrasion energy of the discretization node in the x-axis direction according to the relative displacement in the x-axis direction;
and the abrasion energy obtaining module 5 is used for obtaining abrasion energy of the gear according to the abrasion energy in the z-axis direction and the abrasion energy in the x-axis direction.
Further, the data obtaining module 1 is further configured to:
acquiring node data corresponding to discrete nodes in a gear meshing area;
and discretizing the node data to obtain discretized node data.
Further, the relative displacement obtaining module 2 is further configured to:
obtaining the relative displacement of the discretization node in the z-axis direction according to the following formula:
obtaining the relative displacement of the discretization node in the x-axis direction according to the following formula:
wherein, Δ ziFor discretizing the relative displacement of the nodes in the z-axis direction,
to discretize the mode shape coefficient of the node a in the z-axis direction,
for discretizing the mode shape coefficient of node B in the z-axis direction, Δ xiFor discretizing the relative displacement of the nodes in the x-axis direction,
to discretize the mode shape coefficient of the node a in the x-axis direction,
the mode shape coefficient of the node B in the x-axis direction is discretized.
Further, the z-axis wear energy acquisition module 3 is also configured to:
and obtaining the stress of the discretization node in the z-axis direction according to the following formula:
the abrasion energy of the discretization node in the z-axis direction is obtained according to the stress of the discretization node in the z-axis direction, and the formula is as follows:
wherein E isi(z)For discretizing the wear energy of the junction in the z-axis, Fi(z)The stress of the discretization node in the z-axis direction is shown, k is the contact rigidity,
to discretize the displacement of node a in the z-axis direction,
is the z-axis direction instantaneous velocity of the discretized junction a,
to discretize the displacement of the node B in the z-axis direction,
is the z-axis instantaneous velocity of the discretized node B.
Further, the x-axis wear energy harvesting module 4 is also configured to:
and obtaining the stress of the discretization node in the x-axis direction according to the following formula:
the abrasion energy of the discretization node in the z-axis direction is obtained according to the stress of the discretization node in the z-axis direction, and the formula is as follows:
wherein E isi(x)For discretizing the wear energy of the junction in the x-axis direction, Fi(x)The stress of the discretization node in the x-axis direction is shown, k is the contact rigidity,
to discretize the displacement of node a in the x-axis direction,
is the x-axis instantaneous velocity of the discretized junction a,
to discretize the displacement of the node B in the x-axis direction, 
Is the x-axis instantaneous velocity of the discretized node B.
Further, the wear energy obtaining module 5 is also configured to obtain the wear energy of the gear according to the wear energy in the z-axis direction and the wear energy in the x-axis direction by the following formula:
wherein E isi(z)For discretizing the wear energy of the junction in the z-axis, Ei(x)The abrasion energy of the discretization node in the x-axis direction is shown as E.
The device for monitoring the wear energy of the gear can implement the method of the first embodiment. The alternatives in the first embodiment are also applicable to the present embodiment, and are not described in detail here.
The rest of the embodiments of the apparatus of the present application may refer to the contents of the first embodiment, and in this embodiment, details are not repeated.
EXAMPLE III
The monitoring system of wear energy of gear that this application embodiment provided includes: the device comprises a driving motor, a load motor, a driving gear, a load gear, a high-precision camera, a torque and rotation speed sensor, a monitoring device for the abrasion energy of the gear, a real-time monitoring and early warning device and a lighting device;
wherein, the monitoring devices of the wearing and tearing energy of gear includes:
the data acquisition module is used for acquiring discrete node data corresponding to a discrete node in a gear meshing area;
The relative displacement obtaining module is used for obtaining the relative displacement of the gear meshing area in the z-axis direction and the relative displacement of the discretization node in the x-axis direction according to the discretization node data;
the z-axis abrasion energy obtaining module is used for obtaining abrasion energy of the discretization node in the z-axis direction according to the relative displacement in the z-axis direction;
the x-axis abrasion energy obtaining module is used for obtaining abrasion energy of the discretization node in the x-axis direction according to the relative displacement in the x-axis direction;
and the abrasion energy obtaining module is used for obtaining abrasion energy of the gear according to the abrasion energy in the z-axis direction and the abrasion energy in the x-axis direction.
The monitoring system for the wear energy of the gear provided by the embodiment of the application monitors the energy loss condition of the gear in the meshing wear process in real time, and timely sends out early warning after the gear reaches the fatigue threshold value, so that reference is provided for the prediction of the residual fatigue life of the subsequent gear.
Also, the experimental data can be used to: abnormal abrasion energy conditions are found in time, and the matching degree between gears and the consistency of a production process are ensured; the fatigue damage accumulation model of the metal mechanical part is perfected, an empirical formula is deduced to guide the design of the relevant performance of the gear, and excessive abrasion of the gear in the working process is avoided; and accumulating a fatigue endurance test failure characteristic parameter database, and constructing a convolutional neural network algorithm for predicting the fatigue residual life of the gear.
The driving motor and the load motor are respectively arranged on the driving gear and the load gear, the torque and rotating speed sensor is connected with the driving motor and the load motor, the high-precision camera is placed in the middle of the driving gear and the load gear to shoot the meshing area of the two gears, the light source of the lighting device illuminates the meshing area of the two gears, the image signal of the high-precision camera and the sensor signal of the torque and rotating speed sensor are output to the data acquisition module of the monitoring device for the abrasion energy of the gears, and the calculation result is output to the real-time monitoring and early warning device after being processed.
Before testing, firstly, a speckle pattern is sprayed on the surface of a gear pair to be tested, the size of a scattered spot is generally required to be 3-10 pixels, and the size of the spot is required to be consistent so as to ensure that the speckle pattern has good spatial resolution. During testing, the driving gear is driven by the driving motor and works in a rotating speed control state; the load gear is driven by a load motor and works in a torque control state. In the gear meshing transmission process, a torque and rotating speed sensor is used for monitoring the torque and the rotating speed of the driving gear and the load gear respectively in real time. The test procedure ensures that there is sufficient illumination at the gear with the brightness provided by the illumination device in order to capture a clear displacement image. The method comprises the steps of collecting speckle images of the gear through a high-precision camera, inputting the speckle images of the gear and torque and rotating speed information collected by a torque and rotating speed sensor into a data acquisition module of a gear wear energy monitoring device, calculating wear energy of a gear pair at each moment through operation processing, inputting the wear energy into a real-time monitoring and early warning device, and immediately giving an alarm if a set gear fatigue threshold is reached, so that abnormal wear energy conditions can be found in the early stage.
EXAMPLE III
An embodiment of the present application provides an electronic device, including a memory and a processor, where the memory is used to store a computer program, and the processor runs the computer program to make the electronic device execute the method for monitoring wear energy of a gear according to the first embodiment.
Alternatively, the electronic device may be a server.
Referring to fig. 4, fig. 4 is a schematic structural composition diagram of an electronic device according to an embodiment of the present disclosure. The electronic device may include a processor 41, a communication interface 42, a memory 43, and at least one communication bus 44. Wherein the communication bus 44 is used for realizing direct connection communication of these components. The communication interface 42 of the device in the embodiment of the present application is used for communicating signaling or data with other node devices. The processor 41 may be an integrated circuit chip having signal processing capabilities.
The Processor 41 may be a general-purpose Processor including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor 41 may be any conventional processor or the like.
The Memory 43 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Read Only Memory (EPROM), an electrically Erasable Read Only Memory (EEPROM), and the like. The memory 43 stores computer readable instructions which, when executed by the processor 41, cause the device to perform the various steps involved in the method embodiment of fig. 1 described above.
Optionally, the electronic device may further include a memory controller, an input output unit. The memory 43, the memory controller, the processor 41, the peripheral interface, and the input/output unit are electrically connected to each other directly or indirectly, so as to realize data transmission or interaction. For example, these components may be electrically connected to each other via one or more communication buses 44. The processor 41 is adapted to execute executable modules stored in the memory 43, such as software functional modules or computer programs comprised by the device.
The input and output unit is used for providing a task for a user to create and start an optional time period or preset execution time for the task creation so as to realize the interaction between the user and the server. The input/output unit may be, but is not limited to, a mouse, a keyboard, and the like.
It will be appreciated that the configuration shown in fig. 4 is merely illustrative and that the electronic device may include more or fewer components than shown in fig. 4 or have a different configuration than shown in fig. 4. The components shown in fig. 4 may be implemented in hardware, software, or a combination thereof.
In addition, an embodiment of the present application further provides a computer-readable storage medium, which stores a computer program, and the computer program, when executed by a processor, implements the method for monitoring wear energy of a gear according to the first embodiment.
Embodiments of the present application further provide a computer program product, which when running on a computer, causes the computer to execute the method described in the method embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based devices that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.
The functions may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
Claims (10)
1. A method of monitoring wear energy of a gear, the method comprising:
obtaining discrete node data corresponding to a discrete node of a gear meshing area;
obtaining the relative displacement of the gear meshing area in the z-axis direction and the relative displacement of the discretization node in the x-axis direction according to the discretization node data;
obtaining the abrasion energy of the discretization node in the z-axis direction according to the relative displacement in the z-axis direction;
acquiring the abrasion energy of the discretization node in the x-axis direction according to the relative displacement in the x-axis direction;
and obtaining the wear energy of the gear according to the wear energy in the z-axis direction and the wear energy in the x-axis direction.
2. The method for monitoring the wear energy of the gear according to claim 1, wherein the step of obtaining the relative displacement of the gear meshing region in the z-axis direction and the relative displacement of the discretization node in the x-axis direction from the discretization node data comprises:
obtaining the relative displacement of the discretization node in the z-axis direction according to the following formula:
obtaining the relative displacement of the discretization node in the x-axis direction according to the following formula:
wherein, Δ z iFor the relative displacement of the discretized junction in the z-axis direction,
to discretize the mode shape coefficient of node a in the z-axis direction,
for discretizing the mode shape coefficient of node B in the z-axis direction, Δ xiFor the relative displacement of the discretized junction in the x-axis direction,
to discretize the mode shape coefficient of the node a in the x-axis direction,
discretizing the mode shape coefficient of the node B in the x-axis direction.
3. The method for monitoring the wear energy of the gear according to claim 2, wherein the step of obtaining the wear energy of the discretized node in the z-axis direction according to the relative displacement in the z-axis direction comprises:
and obtaining the stress of the discretization node in the z-axis direction according to the following formula:
and acquiring the abrasion energy of the discretization node in the z-axis direction according to the stress of the discretization node in the z-axis direction, wherein the formula is as follows:
wherein E isi(z)For the discretized node inWear energy in the z-axis direction, Fi(z)Is the stress of the discretization joint in the z-axis direction, k is the contact rigidity,
to discretize the displacement of node a in the z-axis direction,
is the z-axis direction instantaneous velocity of the discretized junction a,
to discretize the displacement of the node B in the z-axis direction,
is the z-axis instantaneous velocity of the discretized node B.
4. The method for monitoring the wear energy of the gear according to claim 2, wherein the step of obtaining the wear energy of the discretized node in the x-axis direction according to the relative displacement in the x-axis direction comprises:
obtaining the stress of the discretization node in the x-axis direction according to the following formula:
and acquiring the abrasion energy of the discretization node in the z-axis direction according to the stress of the discretization node in the z-axis direction, wherein the formula is as follows:
wherein, Ei(x)For the wear energy of the discretized junction in the x-axis direction, Fi(x)Is the stress of the discretization joint in the direction of the x axis, k is the contact rigidity,
to discretize the displacement of node a in the x-axis direction,
is the x-axis instantaneous velocity of the discretized junction a,
to discretize the displacement of the node B in the x-axis direction,
is the x-axis instantaneous velocity of the discretized node B.
5. The method for monitoring wear energy of a gear according to claim 3 or 4, wherein the wear energy of the gear is obtained from the wear energy in the z-axis direction and the wear energy in the x-axis direction by the following formula:
wherein E isi(z)For the wear energy of the discretized junction in the z-axis direction, Ei(x)The abrasion energy of the discretization node in the x-axis direction is shown, and E is the abrasion energy of the gear.
6. The method for monitoring the wear energy of the gear according to claim 1, wherein the step of obtaining the discretized node data corresponding to the discretized nodes of the gear meshing area comprises:
acquiring node data corresponding to the discrete node of the gear meshing area;
and discretizing the node data to obtain discretized node data.
7. A device for monitoring the wear energy of a gear, characterized in that it comprises:
the data acquisition module is used for acquiring discrete node data corresponding to a discrete node in a gear meshing area;
a relative displacement obtaining module, configured to obtain, according to the discretization node data, a relative displacement of the gear meshing region in the z-axis direction and a relative displacement of the discretization node in the x-axis direction;
the abrasion energy obtaining module is used for obtaining abrasion energy of the discretization node in the z-axis direction according to the relative displacement in the z-axis direction; acquiring the abrasion energy of the discretization node in the x-axis direction according to the relative displacement in the x-axis direction; and obtaining the wear energy of the gear according to the wear energy in the z-axis direction and the wear energy in the x-axis direction.
8. A system for monitoring wear energy of a gear, the system comprising:
the device comprises a driving motor, a load motor, a driving gear, a load gear, a high-precision camera, a torque and rotation speed sensor, a gear abrasion energy monitoring device, a real-time monitoring and early warning device and a lighting device;
wherein, the monitoring devices of the wear energy of the gear includes:
the data acquisition module is used for acquiring discrete node data corresponding to a discrete node in a gear meshing area;
a relative displacement obtaining module, configured to obtain, according to the discretization node data, a relative displacement of the gear meshing region in the z-axis direction and a relative displacement of the discretization node in the x-axis direction;
the z-axis abrasion energy obtaining module is used for obtaining abrasion energy of the discretization node in the z-axis direction according to the relative displacement in the z-axis direction;
the x-axis abrasion energy obtaining module is used for obtaining abrasion energy of the discretization node in the x-axis direction according to the relative displacement in the x-axis direction;
and the abrasion energy obtaining module is used for obtaining abrasion energy of the gear according to the abrasion energy in the z-axis direction and the abrasion energy in the x-axis direction.
9. An electronic device, comprising a memory for storing a computer program and a processor for executing the computer program to cause the electronic device to perform the method of monitoring wear energy of a gear according to any one of claims 1 to 6.
10. A computer-readable storage medium, characterized in that it stores a computer program which, when being executed by a processor, implements a method of monitoring wear energy of a gear according to any one of claims 1 to 6.
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