CN114414649A - Hydraulic part abrasion detection device, hydraulic system abrasion detection device and operation machine - Google Patents
Hydraulic part abrasion detection device, hydraulic system abrasion detection device and operation machine Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 260
- 238000005299 abrasion Methods 0.000 title claims abstract description 82
- 239000002245 particle Substances 0.000 claims abstract description 88
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 29
- 238000012545 processing Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims description 20
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- 238000000429 assembly Methods 0.000 claims description 6
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- 238000004891 communication Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000002923 metal particle Substances 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
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- 238000004458 analytical method Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/60—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrostatic variables, e.g. electrographic flaw testing
Abstract
The invention relates to the field of wear detection, and provides a hydraulic part wear detection device, a hydraulic system wear detection device and an operating machine, wherein the hydraulic part wear detection device comprises a detection power supply, a detection electrode, a current collector and a first control unit; one end of a detection power supply is connected with the hydraulic part to be detected, the other end of the detection power supply is connected with a detection electrode, the detection electrode is arranged in a hydraulic oil pipe, the hydraulic oil pipe is communicated with the hydraulic part to be detected, and a first control unit is connected with a current collector; the current collector is used for collecting micro-current signals; the micro-current signal is generated by the contact of charged particles generated by the abrasion of the hydraulic part to be detected and the detection electrode; the first control unit is used for acquiring the micro-current signal and analyzing and processing the micro-current signal to obtain a wear detection result of the hydraulic part to be detected. The abrasive particles generated by abrasion of the hydraulic part in the hydraulic pipeline are electrified, and the abrasive particles are in contact with the detection electrode to generate micro-current, so that abrasion detection of the hydraulic part is realized, the real-time performance of a detection result is stronger, and the detection precision and the detection efficiency are higher.
Description
Technical Field
The invention relates to the technical field of wear detection, in particular to a hydraulic part wear detection device, a hydraulic system wear detection device and an operating machine.
Background
The abrasion of a hydraulic part in the hydraulic system not only affects the working performance of the hydraulic part, but also causes other parts with friction pairs to be abraded and aggravated in the working process after abrasive particles generated by abrasion enter hydraulic oil, and further causes the fault of the hydraulic system due to serious abrasion. Therefore, it is important to detect the wear state of the hydraulic parts.
At present, the wear failure of the hydraulic part is monitored by adopting a manual detection mode, however, the wear phenomenon of the hydraulic part is difficult to find quickly by manual detection, and the wear failure can be found only when the hydraulic system is stopped due to excessive wear, so that the wear detection is not timely and accurate enough, and the problems of time consumption and labor consumption exist.
Disclosure of Invention
The invention provides a hydraulic part abrasion detection device, a hydraulic system abrasion detection device and an operation machine, which are used for solving the defects that in the prior art, the abrasion phenomenon of a hydraulic part is difficult to find quickly by a manual detection mode, so that the abrasion detection is not timely and accurate enough, and the time and the labor are consumed.
In a first aspect, the present invention provides a hydraulic component wear detection apparatus, the apparatus comprising: the device comprises a detection power supply, a detection electrode, a current collector and a first control unit;
one end of the detection power supply is connected with the hydraulic part to be detected, the other end of the detection power supply is connected with the detection electrode, the detection electrode is arranged in a hydraulic oil pipe, the hydraulic oil pipe is communicated with the hydraulic part to be detected, and the first control unit is connected with the current collector;
the current collector is used for collecting micro-current signals; the micro-current signal is generated by the contact of charged particles generated by the abrasion of the hydraulic part to be detected and the detection electrode;
the first control unit is used for acquiring the micro-current signal and analyzing and processing the micro-current signal to obtain a wear detection result of the hydraulic part to be detected.
The invention realizes the abrasion detection of the hydraulic part to be detected by utilizing the principle that charged particles generated by the abrasion of the hydraulic part to be detected are contacted with the detection electrode with opposite polarity to generate a micro-current signal.
The hydraulic part wear detection device further comprises an alarm, the alarm is connected with the first control unit, and the first control unit is further used for controlling the alarm to give out an early warning prompt when the wear detection result is abnormal wear.
Whether wearing and tearing are unusual is present awaited measuring the hydraulic part through judging, when judging wearing and tearing are unusual, in time sends the early warning suggestion, and then can make the staff in time discover wearing and tearing unusual hidden danger before the wearing and tearing trouble takes place, avoids wearing and tearing further aggravation to cause unusual occurence of failure.
According to the hydraulic part wear detection device provided by the invention, the first control unit comprises a first memory and a first controller, and the first memory is connected with the first controller;
the first memory is used for storing wear detection standard data;
the first controller is used for acquiring the micro-current signal, calling corresponding abrasion detection standard data from the first memory, and analyzing and processing the micro-current signal based on the called abrasion detection standard data to obtain an abrasion detection result of the hydraulic part to be detected.
According to the hydraulic part abrasion detection device provided by the invention, the abrasion detection standard data is a micro-current threshold or a charged particle quantity threshold;
when the wear detection criterion data is a threshold number of charged particles, the first controller is specifically configured to:
and acquiring the micro-current signal, analyzing the fluctuation frequency of the micro-current signal to acquire the quantity of the charged particles in a preset time period, calling a corresponding charged particle quantity threshold value from the first memory, and comparing and analyzing the quantity of the charged particles and the called charged particle quantity threshold value to acquire the abrasion detection result of the hydraulic part to be detected.
In a second aspect, the present invention also provides a hydraulic system wear detection apparatus, the apparatus comprising: a plurality of hydraulic wear detectors as described in any one of the above.
This hydraulic system wearing and tearing detection device can carry out the wearing and tearing to a plurality of hydraulic pressure parts that await measuring in the hydraulic system simultaneously and detect through setting up a plurality of hydraulic pressure parts wearing and tearing detection device, and detection efficiency is higher.
In a third aspect, the present invention also provides a hydraulic system wear detection apparatus, including: the hydraulic part wear detection device comprises a plurality of hydraulic part wear detection assemblies and at least one second control unit, wherein the plurality of hydraulic part wear detection assemblies are connected with the second control unit;
the hydraulic part abrasion detection assembly comprises a detection power supply, a detection electrode and a current collector;
one end of the detection power supply is connected with the hydraulic part to be detected, the other end of the detection power supply is connected with the detection electrode, the detection electrode is arranged in a hydraulic oil pipe, the hydraulic oil pipe is communicated with the hydraulic part to be detected, and the current collector is connected with the second control unit;
the current collector is used for collecting micro-current signals; the micro-current signal is generated by the contact of charged particles generated by the abrasion of the hydraulic part to be detected and the detection electrode;
the second control unit is used for acquiring the micro-current signals acquired by the current collectors and analyzing and processing the micro-current signals to obtain the abrasion detection results of the hydraulic parts to be detected.
This hydraulic system wear detection device can acquire the wearing and tearing data of a plurality of hydraulic parts that await measuring in step through setting up a plurality of hydraulic parts wear detection subassembly, and then through second control unit centralized processing, realizes the real-time detection to a plurality of hydraulic parts wearing and tearing states, and this hydraulic system wear detection device structure is simpler, and detection efficiency is higher.
According to the wear detection device of the hydraulic system provided by the invention, the second control unit comprises a second memory and a second controller, and the second memory is connected with the second controller;
the second memory is used for storing wear detection standard data;
the second controller is used for acquiring micro-current signals acquired by the current collectors, calling corresponding wear detection standard data from the second memory, and analyzing and processing the micro-current signals based on the called wear detection standard data to obtain wear detection results of the hydraulic parts to be detected.
According to the hydraulic system abrasion detection device provided by the invention, the abrasion detection standard data is a micro-current threshold or a charged particle quantity threshold;
when the wear detection criterion data is a threshold number of charged particles, the second controller is specifically configured to:
acquiring micro-current signals acquired by the current collectors, analyzing the fluctuation frequency of the micro-current signals to acquire the quantity of charged particles in a preset time period, calling a corresponding charged particle quantity threshold value from the second storage, and comparing and analyzing the quantity of the charged particles and the called charged particle quantity threshold value to acquire the abrasion detection result of each hydraulic part to be detected.
In a fourth aspect, the present disclosure also provides a working machine including a hydraulic system wear detection apparatus as described in any one of the above.
In a fifth aspect, the present invention further provides a hydraulic component wear detection method, including:
acquiring a micro-current signal; the micro-current signal is generated by the contact of charged particles generated by the abrasion of the hydraulic part to be detected and a detection electrode in a hydraulic oil pipe;
and analyzing and processing the micro-current signal to obtain a wear detection result of the hydraulic part to be detected.
According to the hydraulic part abrasion detection device, the hydraulic system abrasion detection device and the operation machine, abrasion particles generated by abrasion of the hydraulic part in the hydraulic pipeline are electrified and are in contact with the detection electrode to generate micro current, so that the hydraulic part abrasion detection is realized, the detection mode is easy to realize, the real-time performance of the detection result is higher, and the detection precision and the detection efficiency are higher.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a hydraulic part wear detection device provided by the invention;
FIG. 2 is a second schematic structural view of the hydraulic wear detection device provided in the present invention;
FIG. 3 is a schematic structural diagram of a hydraulic system wear detection device provided by the present invention;
FIG. 4 is a second schematic structural diagram of a hydraulic system wear detection apparatus provided by the present invention;
FIG. 5 is a schematic flow chart of a hydraulic wear detection method provided by the present invention;
fig. 6 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 shows a hydraulic wear detection device provided by an embodiment of the invention, and the device comprises: a detection power supply 110, a detection electrode 120, a current collector 130 and a first control unit 140;
one end of the detection power supply 110 is connected with the hydraulic part 150 to be detected, the other end of the detection power supply 110 is connected with the detection electrode 120, the detection electrode 120 is arranged in the hydraulic oil pipe 180, the hydraulic oil pipe 180 is communicated with the hydraulic part 150 to be detected, and the first control unit 140 is connected with the current collector 130;
the current collector 130 is used for collecting micro-current signals; wherein, the micro-current signal is generated by the contact between the charged particles 170 generated by the abrasion of the hydraulic part 150 to be detected and the detection electrode 120;
the first control unit 140 is configured to obtain the micro-current signal, and analyze the micro-current signal to obtain a wear detection result of the hydraulic part 150 to be detected.
As shown in fig. 1, in this embodiment, the detection electrode 120 is specifically connected to the moving component 160 of the hydraulic unit 150 to be detected, and the moving component 160 may be a metal part with a friction pair, which is a part of the hydraulic unit 150 that is easily worn.
In an exemplary embodiment, the positive electrode of the detection power source 110 may be connected to the outer wall of the moving assembly 160 on the hydraulic unit 150 to be measured, so that the outer wall of the moving assembly 160 is positively charged, and thus the abrasive particles generated by abrasion are also positively charged, i.e. the charged particles 170 in fig. 1, and the negative electrode of the detection power source 110 is connected to the detection electrode 120, so that the detection electrode 120 is negatively charged, and when the positively charged particles 170 flow in the hydraulic oil to contact with the negatively charged detection electrode 120, the positive charges are neutralized with the negative electrode, and thus a micro-current signal, i.e. a charge signal transferred by the abrasive particles, may be generated.
The current collector 130 is disposed between the detection power source 110 and the detection electrode 120, and the generated micro-current signal can be collected by the current collector 130 and transmitted to the first control unit 140 for analysis and processing, so as to obtain the wear detection result.
In the practical application process, in order to ensure that the detection process is more stable, the detection electrode 120 may be fixed, for example, the detection electrode 120 may be fixed on the inner wall of the hydraulic oil pipe 180, so as to prevent the problem that the detection accuracy is affected by the movement of the detection electrode 120 caused by the flow of hydraulic oil in the hydraulic oil pipe 180.
It is understood that the hydraulic component 150 to be measured in this embodiment may be a hydraulic pump, a hydraulic motor, or other components that are prone to wear. In this embodiment, the current collector 130 may be a current sensor, and the detection power supply 110 may be a conventional 12V or 24V power supply.
In order to ensure that the charges are not easily lost in the detection process, an insulating layer can be additionally arranged outside the moving assembly 160, so that the outer wall of the moving assembly 160 is separated from other external conductive devices, and the influence of the charge loss on the detection precision is avoided.
Preferably, referring to fig. 2, the hydraulic wear detection apparatus may further include an alarm 210, where the alarm 210 is connected to the first control unit 140, and the first control unit 140 is further configured to control the alarm 210 to issue an early warning prompt when the wear detection result is a wear anomaly.
In this embodiment, when abnormal wear is detected, an early warning prompt may be sent in time to remind a worker to handle the abnormal wear in time, thereby avoiding the occurrence of a wear failure. In the practical application process, the early warning mode may be a site early warning, for example, the alarm 210 is disposed near the hydraulic part to be detected, or is disposed at a position easily monitored by a worker, and the site early warning is realized through an alarm prompt sound or a prompt light. Of course, a remote early warning manner may also be adopted, for example, a terminal device of a management end or a mobile device of a worker is in communication connection with the first control unit 140, and the remote early warning is realized in a message pushing manner.
Preferably, referring to fig. 2, the first control unit 140 is further connected to the driving source 220 of the hydraulic part to be tested, and the first control unit 140 is further configured to control the driving source 220 of the hydraulic part to be tested to stop when the wear detection result is a wear anomaly.
When the abrasion is abnormal, the driving source 220 of the hydraulic part to be detected is controlled to stop in time through the first control unit 140, so that the failure caused by further aggravation of abrasion can be avoided, and the safety of the abrasion detection process is improved.
In the practical application process, the first control unit 140 may be a separately arranged control unit, or may be directly implemented by a control end of the hydraulic component 150 to be tested, and may be set reasonably according to the practical control requirement.
Specifically, the first control unit comprises a first memory and a first controller, and the first memory is connected with the first controller;
the first memory is used for storing wear detection standard data;
the first controller is used for acquiring the micro-current signal, calling corresponding abrasion detection standard data from the first memory, and analyzing and processing the micro-current signal based on the called abrasion detection standard data to obtain an abrasion detection result of the hydraulic part to be detected.
Specifically, the wear detection criterion data in the present embodiment may be a micro-current threshold or a charged particle number threshold.
It should be noted that, in this embodiment, the wear detection standard data stored in the first memory is mainly micro-current threshold values or charged particle number threshold values corresponding to different types of hydraulic parts under different working conditions, and in the actual wear detection process, corresponding micro-current threshold values or charged particle number threshold values are correspondingly retrieved according to the type of the hydraulic part to be detected and the current working condition state, so that the wear detection result can be obtained by comparing the actual measurement value or the processing data of the actual measurement value with the threshold values.
In an exemplary embodiment, when the wear detection criterion data is a micro-current threshold, the first controller is specifically configured to:
and acquiring a micro-current signal, determining a micro-current value at the current moment, calling a corresponding micro-current threshold value from the first memory, and comparing and analyzing the micro-current value at the current moment and the micro-current threshold value to obtain a wear detection result of the hydraulic part to be detected.
Specifically, the micro-current value at the current moment is compared with a micro-current threshold, and when the micro-current value at the current moment is greater than the micro-current threshold, the wear is determined to be abnormal, namely the to-be-detected hydraulic part is excessively worn; otherwise, the operation is determined to be normal.
It can be understood that if the micro-current value at the current moment is greater than the micro-current threshold value, the charge amount is higher, the number of the charged particles is larger, the abrasion is more serious, and therefore the abrasion abnormality can be judged.
In an exemplary embodiment, when the wear detection criterion data is a threshold number of charged particles, the first controller is specifically configured to:
acquiring a micro-current signal, analyzing the fluctuation frequency of the micro-current signal to acquire the quantity of charged particles in a preset time period, calling a corresponding charged particle quantity threshold value from the first memory, and comparing and analyzing the quantity of the charged particles and the called charged particle quantity threshold value to acquire a wear detection result of the hydraulic part to be detected.
Specifically, the number of charged particles in a preset time period is compared with a called charged particle data threshold, and if the number of charged particles in the preset time period is greater than the charged particle number threshold, abnormal abrasion is judged; otherwise, judging normal operation.
The judgment method is based on the counting of the charged particles to obtain a judgment result, and the charged particles can be generated as the micro-current signal fluctuates once, so that the charged particles can be counted according to the fluctuation condition of the micro-current, if the number of the charged particles in a preset time period, such as unit time, is too high, the generation speed of abrasive particles is too high, the hydraulic part to be detected is rapidly worn, the potential danger of excessive wear exists, and the wear is abnormal.
The embodiment of the invention also provides a hydraulic system abrasion detection device, which comprises: the device for detecting the abrasion of the hydraulic parts can detect the abrasion of a plurality of hydraulic parts to be detected in a hydraulic system at the same time.
In addition, fig. 3 shows a further hydraulic system wear detection device provided by an embodiment of the present invention, which includes: a plurality of hydraulic wear detection assemblies 310 and at least one second control unit 320, the plurality of hydraulic wear detection assemblies 310 being connected to the second control unit 320;
the hydraulic part wear detection assembly 310 comprises a detection power supply 110, a detection electrode 120 and a current collector 130;
one end of the detection power supply 110 is connected with the hydraulic part to be detected, the other end of the detection power supply 110 is connected with the detection electrode 120, the detection electrode 120 is arranged in the hydraulic oil pipe, the hydraulic oil pipe is communicated with the hydraulic part to be detected, and the current collector 130 is connected with the second control unit 320;
the current collector 130 is used for collecting micro-current signals; wherein, the micro-current signal is generated by the contact of the charged particles generated by the abrasion of the hydraulic part to be detected and the detection electrode 120;
the second control unit 320 is configured to obtain the micro-current signals collected by each current collector 130, and analyze the micro-current signals to obtain the wear detection result of each hydraulic component to be detected.
More preferably, referring to fig. 4, the hydraulic system wear detection apparatus further includes an alarm 210, and the alarm 210 is connected to the second control unit 320;
the second control unit 320 is further configured to control the alarm 210 to issue an early warning prompt when the wear detection result of the at least one hydraulic component to be tested is abnormal wear.
Similarly, the early warning mode here may also be a site early warning, for example, the alarm 210 is disposed near each hydraulic component to be detected, or is disposed at a position easily monitored by a worker, and the site early warning is realized through an alarm prompt sound or a prompt light. Of course, a remote early warning manner may also be adopted, for example, the terminal device of the management end or the mobile device of the staff is in communication connection with the second control unit 320, and the remote early warning is realized in a message pushing manner.
When the remote early warning is carried out, in order to facilitate the working personnel to know which hydraulic part is abnormal in abrasion, the identification information of the hydraulic part with abnormal abrasion and the early warning information can be synchronously pushed to the remote monitoring end, and therefore the working personnel can know the detailed early warning information conveniently.
Preferably, referring to fig. 4, the second control unit 320 is further connected to the driving sources 220 of the hydraulic components to be tested, respectively, and the second control unit 320 is further configured to control the driving source 220 of the corresponding hydraulic component to be tested to stop when the wear detection result of at least one hydraulic component to be tested is a wear anomaly.
In an exemplary embodiment, the second control unit 320 may include a second memory and a second controller, the second memory being connected with the second controller;
the second memory is used for storing the wear detection standard data;
the second controller is used for acquiring micro-current signals acquired by each current collector, calling corresponding wear detection standard data from the second memory, and analyzing and processing the micro-current signals based on the called wear detection standard data to obtain the wear detection results of each hydraulic part to be detected.
Specifically, the wear detection criterion data in the present embodiment may be a micro-current threshold or a charged particle number threshold.
In an exemplary embodiment, when the wear detection criterion data is a threshold number of charged particles, the second controller is specifically configured to:
acquiring micro-current signals acquired by each current collector, analyzing the fluctuation frequency of the micro-current signals to acquire the quantity of charged particles in a preset time period, calling a corresponding charged particle quantity threshold value from the second storage, and comparing and analyzing the quantity of the charged particles and the called charged particle quantity threshold value to acquire the abrasion detection result of each hydraulic part to be detected.
The wear anomaly detection mode is consistent with the wear detection principle in the hydraulic part wear detection device, and only after the wear anomaly detection device is extended to a hydraulic system, because the wear states of a plurality of hydraulic parts to be detected need to be synchronously detected, micro-current signals near each hydraulic part to be detected need to be compared and analyzed respectively to obtain the wear detection result of each hydraulic part to be detected.
The hydraulic system abrasion detection device provided by the embodiment of the invention has the advantages of simple structure and lower cost, can realize efficient and accurate abrasion detection, can timely discover the potential abrasion hazard, and avoids the influence of abrasion faults on the normal operation of the hydraulic system.
The embodiment of the invention also provides the working machine which comprises the hydraulic system abrasion detection device and can realize efficient and accurate abrasion detection on the hydraulic parts with abrasion risks in the hydraulic system.
The hydraulic part wear detection method provided by the invention is described below, and the hydraulic part wear detection method described below and the hydraulic part wear detection device described above can be referred to correspondingly.
Fig. 5 shows a hydraulic wear detection method provided by an embodiment of the present invention, which uses the hydraulic wear detection apparatus, and includes:
step 510: acquiring a micro-current signal; the micro-current signal is generated by the contact of charged particles generated by the abrasion of the hydraulic part to be detected and a detection electrode in the hydraulic oil pipe;
step 520: and analyzing and processing the micro-current signal to obtain a wear detection result of the hydraulic part to be detected.
Preferably, the method for detecting the wear of the hydraulic part may further include:
and when the abrasion detection result is abnormal abrasion, giving out an early warning prompt.
Preferably, the method for detecting the wear of the hydraulic part may further include:
and when the abrasion detection result is abnormal abrasion, controlling the driving source of the hydraulic part to be detected to stop.
In an exemplary embodiment, the process of analyzing and processing the micro-current signal to obtain the wear detection result of the hydraulic part to be detected specifically includes:
acquiring a micro-current signal, and calling corresponding wear detection standard data from a database;
and analyzing and processing the micro-current signal based on the called wear detection standard data to obtain a wear detection result of the hydraulic part to be detected.
In the present embodiment, the wear detection criterion data may be a micro-current threshold or a charged particle number threshold.
The detection method provided by the embodiment has lower requirement on the data volume of the database, is easier to realize, and has relatively higher detection precision compared with a manual detection mode.
In an exemplary embodiment, when the wear detection standard data is a threshold value of the number of charged particles, the process of analyzing and processing the micro-current signal to obtain a wear detection result of the hydraulic part to be detected specifically includes:
acquiring a micro-current signal, and analyzing the fluctuation frequency of the micro-current signal to obtain the quantity of charged particles in a preset time period;
and calling a corresponding charged particle quantity threshold value from the database, and comparing and analyzing the charged particle quantity with the called charged particle quantity threshold value to obtain the abrasion detection result of the hydraulic part to be detected.
It will be appreciated that the charged particles and the detection electrodes should be oppositely charged so as to ensure proper formation of the microcurrent signal.
The charged particles mentioned in this embodiment mainly refer to metal particles, the metal particles are mainly formed by abrasive particles generated by abrasion of a hydraulic part, and certainly, the charged particles flowing along with hydraulic oil in a hydraulic oil pipe also have metal particles introduced by an external environment, so that the detection method provided by this embodiment can also realize detection of metal pollution of a hydraulic system, detection of the charged particles in the hydraulic oil pipe can be realized by a micro-current detection mode, and further the metal pollution degree of the hydraulic system can be analyzed, and the more the number of the charged particles, the more serious the metal pollution is.
Meanwhile, the hydraulic oil also contains charged particles except metal particles, such as water drops, in order to distinguish various types of the charged particles, the embodiment can also introduce the fluctuation characteristic of a micro-current signal generated after each particle contacts the detection electrode into the database, and further distinguish various charged particles through the fluctuation characteristic of the micro-current.
After the charged particle types are distinguished, on one hand, only metal particles can be considered during hydraulic part abrasion detection, so that the detection precision of the hydraulic part abrasion detection method is further improved; on the other hand, metal pollution caused by specific particles can be further judged in the metal pollution detection process of the hydraulic system, and the detection result can have higher reference value.
Fig. 6 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 6: a processor (processor)610, a communication Interface (Communications Interface)620, a memory (memory)630 and a communication bus 640, wherein the processor 610, the communication Interface 620 and the memory 630 communicate with each other via the communication bus 640. Processor 610 may invoke logic instructions in memory 630 to perform a hydraulic wear detection method comprising: acquiring a micro-current signal; the micro-current signal is generated by the contact of charged particles generated by the abrasion of the hydraulic part to be detected and a detection electrode in the hydraulic oil pipe; and analyzing and processing the micro-current signal to obtain a wear detection result of the hydraulic part to be detected.
In addition, the logic instructions in the memory 630 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes 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 invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the hydraulic wear detection method provided by the above methods, the method comprising: acquiring a micro-current signal; the micro-current signal is generated by the contact of charged particles generated by the abrasion of the hydraulic part to be detected and a detection electrode in the hydraulic oil pipe; and analyzing and processing the micro-current signal to obtain a wear detection result of the hydraulic part to be detected.
In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the hydraulic wear detection method provided above, the method comprising: acquiring a micro-current signal; the micro-current signal is generated by the contact of charged particles generated by the abrasion of the hydraulic part to be detected and a detection electrode in the hydraulic oil pipe; and analyzing and processing the micro-current signal to obtain a wear detection result of the hydraulic part to be detected.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A hydraulic wear detection device, comprising: the device comprises a detection power supply, a detection electrode, a current collector and a first control unit;
one end of the detection power supply is connected with the hydraulic part to be detected, the other end of the detection power supply is connected with the detection electrode, the detection electrode is arranged in a hydraulic oil pipe, the hydraulic oil pipe is communicated with the hydraulic part to be detected, and the first control unit is connected with the current collector;
the current collector is used for collecting micro-current signals; the micro-current signal is generated by the contact of charged particles generated by the abrasion of the hydraulic part to be detected and the detection electrode;
the first control unit is used for acquiring the micro-current signal and analyzing and processing the micro-current signal to obtain a wear detection result of the hydraulic part to be detected.
2. A hydraulic component wear detection apparatus as claimed in claim 1, further comprising an alarm, wherein the alarm is connected to the first control unit, and the first control unit is further configured to control the alarm to issue an early warning prompt when the wear detection result is a wear anomaly.
3. A hydraulic wear detection device as claimed in claim 1, wherein the first control unit includes a first memory and a first controller, the first memory being connected to the first controller;
the first memory is used for storing wear detection standard data;
the first controller is used for acquiring the micro-current signal, calling corresponding abrasion detection standard data from the first memory, and analyzing and processing the micro-current signal based on the called abrasion detection standard data to obtain an abrasion detection result of the hydraulic part to be detected.
4. A hydraulic component wear detection apparatus as claimed in claim 3, wherein the wear detection criteria data is a micro-current threshold or a charged particle number threshold;
when the wear detection criterion data is a threshold number of charged particles, the first controller is specifically configured to:
and acquiring the micro-current signal, analyzing the fluctuation frequency of the micro-current signal to acquire the quantity of the charged particles in a preset time period, calling a corresponding charged particle quantity threshold value from the first memory, and comparing and analyzing the quantity of the charged particles and the called charged particle quantity threshold value to acquire the abrasion detection result of the hydraulic part to be detected.
5. A hydraulic system wear detection device, comprising: a plurality of hydraulic wear sensing devices as claimed in any one of claims 1 to 4.
6. A hydraulic system wear detection device, comprising: the hydraulic part wear detection device comprises a plurality of hydraulic part wear detection assemblies and at least one second control unit, wherein the plurality of hydraulic part wear detection assemblies are connected with the second control unit;
the hydraulic part abrasion detection assembly comprises a detection power supply, a detection electrode and a current collector;
one end of the detection power supply is connected with the hydraulic part to be detected, the other end of the detection power supply is connected with the detection electrode, the detection electrode is arranged in a hydraulic oil pipe, the hydraulic oil pipe is communicated with the hydraulic part to be detected, and the current collector is connected with the second control unit;
the current collector is used for collecting micro-current signals; the micro-current signal is generated by the contact of charged particles generated by the abrasion of the hydraulic part to be detected and the detection electrode;
the second control unit is used for acquiring the micro-current signals acquired by the current collectors and analyzing and processing the micro-current signals to obtain the abrasion detection results of the hydraulic parts to be detected.
7. The hydraulic system wear detection device of claim 6, wherein the second control unit includes a second memory and a second controller, the second memory being connected to the second controller;
the second memory is used for storing wear detection standard data;
the second controller is used for acquiring micro-current signals acquired by the current collectors, calling corresponding wear detection standard data from the second memory, and analyzing and processing the micro-current signals based on the called wear detection standard data to obtain wear detection results of the hydraulic parts to be detected.
8. The hydraulic system wear detection device of claim 7, wherein the wear detection criteria data is a micro-current threshold or a charged particle number threshold;
when the wear detection criterion data is a threshold number of charged particles, the second controller is specifically configured to:
acquiring micro-current signals acquired by the current collectors, analyzing the fluctuation frequency of the micro-current signals to acquire the quantity of charged particles in a preset time period, calling a corresponding charged particle quantity threshold value from the second storage, and comparing and analyzing the quantity of the charged particles and the called charged particle quantity threshold value to acquire the abrasion detection result of each hydraulic part to be detected.
9. A working machine, characterized by comprising a hydraulic system wear detection device according to any one of claims 6 to 8.
10. A method of detecting wear in a hydraulic component, comprising:
acquiring a micro-current signal; the micro-current signal is generated by the contact of charged particles generated by the abrasion of the hydraulic part to be detected and a detection electrode in a hydraulic oil pipe;
and analyzing and processing the micro-current signal to obtain a wear detection result of the hydraulic part to be detected.
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