CN116269934A - Air conditioner vibration detection method and vibration detection equipment - Google Patents
Air conditioner vibration detection method and vibration detection equipment Download PDFInfo
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- 238000004378 air conditioning Methods 0.000 abstract description 15
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2409—Support rings therefor, e.g. for connecting valves to tissue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
- A61F2/2418—Scaffolds therefor, e.g. support stents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention relates to the technical field of air conditioner transportation, in particular to an air conditioner vibration detection method and vibration detection equipment. The air conditioner vibration detection method comprises the following steps: and (3) carrying out first axial vibration testing, second axial vibration testing and third axial vibration testing on the sample, stopping detection if the sample is damaged in one of the axial vibration tests, and carrying out each axial vibration test on the adjusted sample again. According to the invention, simulation tests are carried out on vibration stress of the samples in multiple directions in the design and development stages, when the samples are damaged, optimization correction is carried out, and vibration simulation in different directions is carried out again until hidden defects of the samples are eliminated, so that the quality reliability of an air-conditioning product is improved, the damage of the air-conditioning product caused by the stress in the transportation process is effectively reduced, and the repair rate of the after-sales product is reduced, so that the vibration detection process of the air-conditioner is more complete, and the problem that the vibration detection mode of the air-conditioner in the prior art is not comprehensive enough is solved.
Description
Technical Field
The invention relates to the technical field of air conditioner transportation, in particular to an air conditioner vibration detection method and vibration detection equipment.
Background
After sales, the air-conditioning product is generally transported to a destination through a road, and in order to prevent the air-conditioning product from being damaged during road transportation, a vibration test is required in a test stage, and the quality hidden trouble of the air-conditioning product is checked by simulating the vibration condition of the air-conditioning product in a road transportation environment.
At present, the vibration test of the existing air conditioner only simulates the vertical axial vibration of the air conditioner product in the road transportation environment, after-sale multiple experimental analysis shows that the stress damage of the air conditioner product is related to the transverse axial vibration and the longitudinal axial vibration in the road transportation environment, the damage problem caused by partial transportation environment can only be avoided by simulating the vertical axial vibration, and the damage problem caused by the vibration in the horizontal axis direction still cannot be solved, so that the air conditioner product still can be damaged in the transportation process, and the problem that the detection loophole is left in the existing air conditioner vibration detection mode is not fully caused.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the detection holes exist in the air conditioner vibration detection mode in the prior art, so that the air conditioner vibration detection method and the vibration detection equipment are provided.
In order to solve the above problems, the present invention provides an air conditioner vibration detection method, comprising: step S1: performing a first axial vibration test on the sample; step S2: after the step S1 is carried out, if the sample is damaged, the detection is stopped, the adjusted sample is carried out again in the step S1, and if the sample is not damaged, the second axial vibration test is carried out; step S3: after the step S2 is carried out, if the sample is damaged, the detection is stopped, the step S1 is carried out again on the adjusted sample, and if the sample is not damaged, the vibration test in the third axial direction is carried out; step S4: after the step S3 is carried out, if the sample is damaged, the detection is stopped, the step S1 is carried out again on the adjusted sample, and if the sample is not damaged, the detection is ended; wherein the first axial direction, the second axial direction and the third axial direction are arranged at an angle to each other.
Optionally, each of step S1, step S2 and step S3 includes: the vibration platform applies corresponding axial sweep frequency vibration to the sample, and/or the vibration platform applies corresponding axial fixed frequency vibration to the sample.
Optionally, the step of applying the corresponding axial swept vibration to the sample by the vibration platform includes: and acquiring a first acceleration of the sample on the pipeline to be tested, enabling the first acceleration to reach a preset acceleration, and carrying out sweep frequency vibration in a preset frequency range at a fixed scanning frequency of a first preset value.
Optionally, the step of applying the fixed frequency vibration of the corresponding axial direction to the sample by the vibration platform includes: and acquiring a second acceleration of the sample on the pipeline to be tested, enabling the second acceleration to reach a preset acceleration, and performing fixed-frequency vibration within a preset test time.
Optionally, before the step of applying the fixed-frequency vibration corresponding to the axial direction to the sample by the vibration platform, the method further comprises:
and obtaining the vibration frequency of the fixed-frequency vibration corresponding to the axial direction.
Optionally, the step of obtaining the vibration frequency of the fixed-frequency vibration corresponding to the axial direction includes: and placing the moving sheet between the sample and the vibration platform, and carrying out corresponding axial sweep frequency vibration by the vibration platform, and obtaining the vibration frequency of the vibration platform at the moment when the moving sheet passes through the sample and the vibration platform.
Optionally, step S1 further includes: the sample is fixed on the vibrating platform in a fixed manner during transportation.
Optionally, the step of fixing the sample to the vibration table in a fixed manner during transportation comprises: the bottom surface of the sample is in contact with the upper surface of the vibration table, and the sample is free to move within a predetermined range in the horizontal direction.
The present invention also provides a vibration detecting apparatus including: the vibration platform is provided with a bearing surface for bearing the sample and comprises a first axial vibration mechanism, a second axial vibration mechanism and a third axial vibration mechanism; a detection section adapted to be in contact with the sample and detect data of the sample in vibration; and an analysis part electrically connected with the detection part, and the analysis part is suitable for analyzing the data measured by the detection part.
Optionally, the detection portion includes a plurality of vibration sensor and signal collector, and signal collector is connected with analysis portion electricity, and a plurality of vibration sensor install on the sample and with signal collector electricity connection.
The invention has the following advantages:
1. in the design development stage, the vibration stress of the samples in multiple directions is subjected to simulation test, when the samples are damaged, the vibration simulation in different directions is carried out again until the hidden defects of the samples are eliminated, the quality reliability of the air-conditioning product is improved, the damage of the air-conditioning product caused by the stress in the transportation process is effectively reduced, and the repair rate of the after-sales product is reduced, so that the vibration detection process of the air-conditioner is more perfect, and the problem that the detection loopholes are not fully existing in the vibration detection mode of the air-conditioner in the prior art is effectively solved.
2. The sweep frequency vibration process can simulate the movement condition of the sample in a severe environment, the resonance frequency point among all parts in the air conditioner can be determined, and the tolerance degree of vulnerable parts in the sample can be determined in the fixed frequency vibration process.
3. The movable piece is placed between the bottom surface of the sample and the bearing surface of the vibration platform, and the movable piece is used as a reference object because the inside of the sample is not easy to observe, so that the frequency point of vulnerable and damaged parts inside the sample is determined in the simulation process, and the obtained vibration frequency is used as the vibration frequency of the follow-up fixed-frequency vibration.
4. The air conditioner vibration detection device is provided with a plurality of vibration mechanisms with different axial directions on the vibration platform, so that the vibration platform can apply a plurality of axial directions of excitation to the sample, the flexibility of applying the excitation to the vibration platform is effectively improved, and the vibration detection device is not limited to applying the excitation in a single direction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of an air conditioner vibration detection method according to an embodiment of the present invention;
fig. 2 illustrates a schematic diagram of a detection process of the air conditioner vibration detection method of fig. 1;
fig. 3 shows a schematic structural diagram of a vibration detecting apparatus according to an embodiment of the present invention.
Reference numerals illustrate:
10. a vibration platform; 11. a servo motor; 21. an inductive vibration sensor; 22. an eddy current vibration sensor; 23. a signal collector; 30. an analysis unit; 40. and (3) a sample.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1, the air conditioner vibration detection method of the present embodiment includes:
step S1: performing a first axial vibration test on the sample 40;
step S2: after step S1, if the sample 40 is damaged, the detection is terminated, the adjusted sample is subjected to step S1 again, and if the sample 40 is not damaged, the second axial vibration test is performed;
step S3: after step S2, if the sample 40 is damaged, the detection is terminated, the adjusted sample is subjected to step S1 again, and if the sample 40 is not damaged, the vibration test in the third axial direction is performed;
step S4: after step S3, if the sample 40 is damaged, the detection is terminated, step S1 is performed again on the adjusted sample, and if the sample 40 is not damaged, the detection is terminated;
wherein the first axial direction, the second axial direction and the third axial direction are arranged at an angle to each other.
By applying the air conditioner vibration detection method, simulation tests are carried out on vibration stress of the samples in multiple directions in the design and development stage, when the samples are damaged, optimization correction is carried out, vibration simulation in different directions is carried out again until hidden defects of the samples are eliminated, the quality reliability of air conditioner products is improved, damage of the air conditioner products caused by stress in the transportation process is effectively reduced, and meanwhile, the repair rate of after-sales products is also reduced, so that the vibration detection process of the air conditioner is more perfect, and the problem that detection holes exist in the air conditioner vibration detection mode in the prior art in an incomplete mode is effectively solved.
Specifically, sample 40 is an air-conditioning sample at the design development stage; the vibration test sequences of the first axial direction, the second axial direction and the third axial direction are not limited, and the test sequences of the first axial direction, the second axial direction and the third axial direction can be arbitrarily changed; the angles of the first axial direction, the second axial direction and the third axial direction are not limited, and the included angle between every two axial directions can be an acute angle, a right angle, an obtuse angle and the like, so that the vibration condition of the sample 40 can be comprehensively detected. It should be noted that, the detection method of the present embodiment is not limited to the vibration test performed on the first axial direction, the second axial direction, and the third axial direction, but may also perform the vibration test on more directions such as the fourth axial direction, so as to further improve the quality reliability of the sample.
Preferably, the first axial direction is a vertical axial direction, the second axial direction is a lateral axial direction, the third axial direction is a longitudinal axial direction, and the vertical axial direction, the lateral axial direction and the longitudinal axial direction are mutually perpendicular so as to fully reflect the vibration conditions of the sample 40 in different axial directions as much as possible. Wherein, the vertical axial direction refers to the "vertical" axial direction indicated by the arrow in fig. 2, the lateral axial direction refers to the "lateral" axial direction indicated by the arrow in fig. 2, and the longitudinal axial direction refers to the axial direction perpendicular to the "vertical" and "lateral" directions indicated by the arrow in fig. 2.
It should be noted that, the vibration tests in different axial directions are not performed by colleagues, each axial vibration test is performed sequentially, the next time can be performed after each vibration test is qualified, if the test result is not qualified, the repair position of the damage of the sample 40 or the position to be optimized is corrected, and then each axial vibration test is repeated.
In this embodiment, each of step S1, step S2 and step S3 includes: the vibration platform 10 applies corresponding axial sweep frequency vibration to the sample 40, and/or the vibration platform 10 applies corresponding axial fixed frequency vibration to the sample 40, the sweep frequency vibration process can simulate the movement condition of the sample in a severe environment, the resonance frequency point among all parts in the air conditioner can be determined, and the tolerance degree of vulnerable parts in the sample 40 can be determined in the fixed frequency vibration process.
In this embodiment, the step of applying the corresponding axial swept vibration to the sample 40 by the vibration table 10 includes: and acquiring a first acceleration on the pipeline to be tested of the sample 40, enabling the first acceleration to reach a preset acceleration, and carrying out sweep frequency vibration within a preset frequency range at a fixed sweep frequency of a first preset value.
Specifically, when the sweep frequency vibration is performed, the first acceleration on the pipeline to be tested of the sample 40 is obtained until the first acceleration reaches the range of 0.7g to 0.8g, the sweep frequency speed is in the range of 0.5oct/min to 0.6oct/min, the sweep frequency vibration is performed at the frequency of 3Hz to 30Hz, and various vibration conditions during road transportation can be covered by simulation under the condition. Wherein g is gravitational acceleration.
Preferably, the first acceleration on the line under test of sample 40 is 0.75g and the sweep rate of the sweep vibration is 0.6oct/min.
In this embodiment, the step of applying the fixed frequency vibration corresponding to the axial direction to the sample 40 by the vibration table 10 includes: and acquiring a second acceleration on the pipeline to be tested of the sample 40, enabling the second acceleration to reach a preset acceleration, and performing fixed-frequency vibration within a preset test time.
Specifically, when the fixed-frequency vibration is performed, the second acceleration on the pipeline to be tested of the sample 40 needs to be in the range of 0.7g to 0.8g, and the vibration test time t is calculated by the following formula:
t＝18000/a*60
where 18000 is the number of impacts of vibration, a is the vibration frequency of constant-frequency vibration, 60 is the conversion number converted per minute per hour, and t is the unit of minutes.
Preferably, the second acceleration on the line under test of sample 40 is 0.75g.
In this embodiment, before the step of applying the fixed-frequency vibration corresponding to the axial direction to the sample 40 by the vibration table 10, the method further includes: and acquiring the vibration frequency of fixed-frequency vibration corresponding to the axial direction, wherein the vibration frequency of the fixed-frequency vibration is determined through the frequency sweeping vibration process because the frequency sweeping vibration process needs to determine the vibration frequency of the fixed-frequency vibration.
In this embodiment, the step of obtaining the vibration frequency of the fixed-frequency vibration corresponding to the axial direction includes: the moving plate is placed between the sample 40 and the vibration platform 10, the vibration platform 10 performs corresponding axial sweep vibration, and when the moving plate moves out from between the sample 40 and the vibration platform 10, the vibration frequency of the vibration platform 10 at the moment is obtained. Since the inside of the sample 40 is not easily observed, the moving plate is used as a reference object to determine the frequency point of the vulnerable and damaged parts inside the sample 40 in the simulation process, and the obtained vibration frequency is used as the vibration frequency of the subsequent fixed-frequency vibration.
Specifically, the moving plate is placed between the bottom surface of the sample 40 and the bearing surface of the vibration platform 10, at this time, the vibration platform 10 is gradually increased from 3Hz to perform the sweep test until the sample 40 is greatly jumped and can be intermittently separated from the bearing surface of the vibration platform 10, and at the same time, the moving plate can be intermittently moved along the longest edge on the bottom surface of the sample 40, and when the moving plate can be intermittently moved from one end to the other end of the bottom surface of the sample 40, the vibration frequency in this state is determined to be the vibration frequency of the subsequent fixed-frequency vibration.
Specifically, the thickness of the movable sheet is in the range of 1.2mm to 1.8mm, preferably 1.5mm, and the material of the movable sheet may be a metal such as copper, iron, aluminum, or an alloy composed of a plurality of metals, preferably an iron sheet.
In this embodiment, before step S1, the method further includes: the sample 40 is fixed on the vibration platform 10 according to the fixing mode during transportation, so as to ensure that the fixing mode of the sample 40 in the simulation process is close to the fixing mode of an air-conditioning product in the actual transportation process.
In this embodiment, the step of fixing the sample 40 to the vibration table 10 in a fixed manner at the time of transportation includes: the bottom surface of the sample 40 is in contact with the upper surface of the vibration table 10, and the sample 40 is free to move within a predetermined range in the horizontal direction.
Specifically, after the sample 40 is fixed, it can freely move in the range of 20mm to 30mm in the horizontal direction, while the movement in the vertical direction of the sample 40 is not limited.
As shown in fig. 2, the present invention also provides a vibration detecting apparatus, which includes: the vibration platform 10, the detection part and the analysis part 30, the vibration platform 10 has a bearing surface for bearing the sample 40, and the vibration platform 10 comprises a first axial vibration mechanism, a second axial vibration mechanism and a third axial vibration mechanism; the detection part is suitable for contacting with the sample 40 and detecting data of the sample 40 in vibration; the analysis unit 30 is electrically connected to the detection unit, and the analysis unit 30 is adapted to analyze data measured by the detection unit.
The air conditioner vibration detection device of the embodiment is provided with the vibration mechanisms with different axial directions on the vibration platform 10, so that the vibration platform 10 can apply a plurality of axial directions of excitation to the sample 40, the flexibility of applying excitation to the vibration platform 10 is effectively improved, and the vibration detection device is not limited to applying excitation in a single direction.
Specifically, the vibration platform 10 includes a servo motor 11, a crankshaft, a support arm, and the like, and the specific structure can refer to the existing vibration detection platform, and the directions of the internal vibration components can be adjusted by the vibration mechanisms in different axial directions in the vibration platform 10.
Specifically, the vibration platform 10 further includes an installation fixing structure, and the concrete form of the fixing structure is not limited, and may be a fixing band, a vibration clamp, or the like, so that the sample 40 may be reliably fixed on the vibration platform 10, and when the sample 40 is fixed on the vibration platform 10, the sample is fixed according to a typical constraint mode and a fastening fixing mode used when an air-conditioning product is actually transported, and after the fixing, a vibration test may be performed.
In this embodiment, the detecting section includes a plurality of vibration sensors mounted on the sample 40 and electrically connected to the signal collector 23, and the signal collector 23 is electrically connected to the analyzing section 30.
Specifically, since the main damaged parts of vibration in the air-conditioning product are the connection lines therein, a plurality of vibration sensors are installed on the connection lines of the sample 40, the plurality of vibration sensors include an inductive vibration sensor 21 and an eddy current vibration sensor 22, the inductive vibration sensor 21 can detect the speed and acceleration of the target position, the eddy current vibration sensor 22 can detect the position movement of the target position, the signal collector 23 can collect data of the plurality of vibration sensors in the simulation process and classify the data, and the analysis part 30 can store the data collected by the signal collector 23 and read and analyze the data, thereby judging whether the sample 40 is damaged or not qualified after the simulation. It will be appreciated that, as an alternative embodiment, the sample 40 may be disassembled directly to view damage directly inside in order to more intuitively view the conditions within the sample 40.
Specifically, in vibration testing, vibration table 10 applies excitation to sample 40 in a predetermined typical axial direction, and sample 40 is in a non-operating state at this time because the air-conditioning product is transported without requiring an electrical plug-in operation.
The following describes a mode of use of the vibration detection apparatus of the present embodiment:
fixing the sample 40 on the vibration platform 10 in a fixed mode during actual transportation; the vibration platform 10 carries out first axial sweep vibration on the sample 40; determining the vibration frequency of fixed-frequency vibration through sweep frequency vibration; vibrating platform 10 performs a first axial fixed frequency vibration on sample 40; checking and judging whether the sample 40 is damaged, if the sample 40 is damaged, stopping detection, repeating the process on the adjusted sample, and if the sample 40 is not damaged, performing second axial sweep vibration; determining the vibration frequency of fixed-frequency vibration through sweep frequency vibration; the vibration platform 10 performs second axial fixed-frequency vibration on the sample 40; checking and judging whether the sample 40 is damaged, if the sample 40 is damaged, stopping detection, repeating the process on the adjusted sample, and if the sample 40 is not damaged, performing third axial sweep vibration; determining the vibration frequency of fixed-frequency vibration through sweep frequency vibration; the vibration platform 10 performs fixed-frequency vibration of the sample 40 in the third axial direction; and checking to judge whether the sample 40 is damaged, if the sample 40 is damaged, stopping detection, repeating the process on the adjusted sample, and if the sample 40 is not damaged, finishing detection, and if the sample 40 is not damaged, detecting vibration of the sample 40 to be qualified.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
1. in the design and development stage, the vibration stress of the samples in multiple directions is subjected to simulation test, when the samples are damaged, the vibration simulation in different directions is carried out again until the hidden defects of the samples are eliminated, the quality reliability of the air-conditioning product is improved, the damage of the air-conditioning product caused by the stress in the transportation process is effectively reduced, and meanwhile, the repair rate of the after-sales product is also reduced, so that the vibration detection process of the air-conditioner is more perfect.
2. The movable piece is placed between the bottom surface of the sample 40 and the bearing surface of the vibration platform 10, and the inside of the sample 40 is not easy to observe, so that the movable piece is used as a reference object to determine the frequency point of the vulnerable component inside the sample 40 in the simulation process, and the obtained vibration frequency is used as the vibration frequency of the subsequent fixed-frequency vibration, so that the vibration frequency of the vulnerable component inside the sample 40 can be rapidly determined without disassembling the sample 40.
3. The air conditioner vibration detection device is provided with a plurality of vibration mechanisms with different axial directions on the vibration platform 10, so that the vibration platform 10 can apply a plurality of axial directions to the sample 40, the flexibility of applying the excitation to the vibration platform 10 is effectively improved, and the vibration detection device is not limited to applying the excitation in a single direction.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. An air conditioner vibration detection method, characterized by comprising the following steps:
step S1: performing a first axial vibration test on the sample (40);
step S2: after step S1, terminating the detection if the sample (40) is damaged, and re-performing step S1 on the adjusted sample, and performing the vibration test in the second axis if the sample (40) is not damaged;
step S3: after step S2, terminating the detection if the sample (40) is damaged, and re-performing step S1 on the adjusted sample, and performing the vibration test in the third axial direction if the sample (40) is not damaged;
step S4: after the step S3 is carried out, if the sample (40) is damaged, the detection is stopped, the adjusted sample is carried out again in the step S1, and if the sample (40) is not damaged, the detection is ended;
wherein the first axial direction, the second axial direction and the third axial direction are arranged at an angle to each other.
2. The method for detecting vibration of an air conditioner according to claim 1, wherein,
the step S1, the step S2, and the step S3 each include:
the vibration platform (10) applies sweep frequency vibration corresponding to the axial direction to the sample (40), and/or the vibration platform (10) applies constant frequency vibration corresponding to the axial direction to the sample (40).
3. The method for detecting vibration of an air conditioner according to claim 2, wherein,
the step of applying a corresponding axial swept frequency vibration to the sample (40) by the vibration table (10) comprises:
and acquiring a first acceleration of the sample (40) on the pipeline to be tested, enabling the first acceleration to reach a preset acceleration, and carrying out sweep frequency vibration within a preset frequency range at a fixed sweep frequency of a first preset value.
4. The method for detecting vibration of an air conditioner according to claim 2, wherein,
the step of applying a fixed frequency vibration corresponding to the axial direction to the sample (40) by the vibration platform (10) comprises:
and acquiring a second acceleration of the sample (40) on the pipeline to be tested, enabling the second acceleration to reach a preset acceleration, and performing fixed-frequency vibration within a preset test time.
5. The method for detecting vibration of an air conditioner according to any one of claims 2 to 4, wherein,
before the step of applying the vibration table (10) to the sample (40) a fixed frequency vibration corresponding to the axial direction, the method further comprises:
and obtaining the vibration frequency of the fixed-frequency vibration corresponding to the axial direction.
6. The method for detecting vibration of an air conditioner according to claim 5, wherein,
the step of obtaining the vibration frequency of the fixed-frequency vibration corresponding to the axial direction comprises the following steps:
and placing a moving sheet between the sample (40) and the vibration platform (10), wherein the vibration platform (10) carries out corresponding axial sweep frequency vibration, and when the moving sheet moves out from between the sample (40) and the vibration platform (10), the vibration frequency of the vibration platform (10) is obtained at the moment.
7. The method for detecting vibration of an air conditioner according to any one of claims 1 to 4, wherein,
the step S1 further includes: the sample (40) is fixed to the vibrating platform (10) in a fixed manner during transportation.
8. The method for detecting vibration of an air conditioner according to claim 7, wherein,
the step of fixing the sample (40) to the vibrating platform (10) in a fixed manner during transport comprises:
the bottom surface of the sample (40) is in contact with the upper surface of the vibration table (10), and the sample (40) is free to move within a predetermined range in the horizontal direction.
9. A vibration detecting apparatus, comprising:
a vibrating platform (10) having a bearing surface for bearing a sample (40), the vibrating platform (10) comprising a first axial vibration mechanism, a second axial vibration mechanism and a third axial vibration mechanism;
a detection section adapted to be in contact with the sample (40) and detect data of the sample (40) in vibration;
and an analysis unit (30) electrically connected to the detection unit, wherein the analysis unit (30) is adapted to analyze data measured by the detection unit.
10. The vibration detection device according to claim 9, characterized in that the detection section comprises a number of vibration sensors and a signal collector (23), the signal collector (23) being electrically connected to the analysis section (30), a number of the vibration sensors being mounted on the sample (40) and being electrically connected to the signal collector (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310080048.7A CN116269934A (en) | 2023-01-13 | 2023-01-13 | Air conditioner vibration detection method and vibration detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310080048.7A CN116269934A (en) | 2023-01-13 | 2023-01-13 | Air conditioner vibration detection method and vibration detection equipment |
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| Publication Number | Publication Date |
|---|---|
| CN116269934A true CN116269934A (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310080048.7A Pending CN116269934A (en) | 2023-01-13 | 2023-01-13 | Air conditioner vibration detection method and vibration detection equipment |
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| Country | Link |
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| CN (1) | CN116269934A (en) |
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- 2023-01-13 CN CN202310080048.7A patent/CN116269934A/en active Pending
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