CN114622378B - Eccentricity reverse calibration method and drum washing machine detection device - Google Patents
Eccentricity reverse calibration method and drum washing machine detection device Download PDFInfo
- Publication number
- CN114622378B CN114622378B CN202210073211.2A CN202210073211A CN114622378B CN 114622378 B CN114622378 B CN 114622378B CN 202210073211 A CN202210073211 A CN 202210073211A CN 114622378 B CN114622378 B CN 114622378B
- Authority
- CN
- China
- Prior art keywords
- eccentricity
- vertical displacement
- horizontal displacement
- washing machine
- displacement value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005406 washing Methods 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000002441 reversible effect Effects 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 title claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims abstract description 253
- 230000018044 dehydration Effects 0.000 claims abstract description 14
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract description 6
- 208000005156 Dehydration Diseases 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000002860 competitive effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001743 silencing effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/48—Preventing or reducing imbalance or noise
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/16—Imbalance
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/24—Spin speed; Drum movements
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The application relates to an eccentricity reverse calibration method and a detection device of a drum washing machine. The method comprises the following steps: s1: in a dehydration mode, under a preset rotating speed, measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured to obtain a first horizontal displacement value and a first vertical displacement value; s2: in the dehydration mode, under the preset rotating speed, measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of the roller model machine to obtain a second horizontal displacement value and a second vertical displacement value; s3: and if the second horizontal displacement value is smaller than the first horizontal displacement value and the second vertical displacement value is smaller than the first vertical displacement value at the preset rotating speed, recording the inner cylinder eccentricity of the roller prototype, wherein the inner cylinder eccentricity is the calibration eccentricity. The application provides a scheme can reduce the eccentric quantity of drum type washing machine inner tube, promotes drum type washing machine's silence effect.
Description
Technical Field
The application relates to the technical field of washing machines, in particular to an eccentricity reverse calibration method and a detection device of a drum washing machine.
Background
With the rapid development and progress of science and technology, people gradually pursue high-quality life, and the requirements on various aspects of household appliances are higher and higher. For drum washing machines, there has been a shift from the initial "clean-to-clean" to quiet, comfortable, energy efficient, etc. When the drum washing machine operates, the most intuitive feeling is that the noise is larger, particularly in the dehydration stage, the vibration of the whole machine in the horizontal direction and the vibration of the outer cylinder in the vertical direction are main sources of the noise, and are closely related to the eccentric amount of the inner cylinder, the related technology can limit the eccentric amount of the inner cylinder of the drum washing machine from the aspects of structural design, logic control programs and the like, the probability of the phenomena of displacement, cylinder collision, high-speed vibration and the like of the whole machine is greatly reduced, but most of the technologies mainly focus on how to accurately detect and limit the eccentric amount, less relate to how to calibrate the eccentric amount, calibrate the eccentric amount of the inner cylinder of a competitive product, and the production of a product with smaller eccentric amount of the inner cylinder and better mute effect is facilitated.
Therefore, the application aims to design an eccentricity reverse calibration method and a drum washing machine detection device, which can reduce the eccentricity of the inner drum of the drum washing machine and improve the mute effect of the drum washing machine.
Disclosure of Invention
In order to overcome the problems in the prior art, the application provides an eccentricity reverse calibration method and a drum washing machine detection device.
The application provides an eccentricity reverse calibration method in a first aspect, which includes:
s1: in a dehydration mode, under a preset rotating speed, measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured to obtain a first horizontal displacement value and a first vertical displacement value;
s2: in the dehydration mode, under the preset rotating speed, measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of a roller model machine to obtain a second horizontal displacement value and a second vertical displacement value, wherein the roller model machine is a machine type with the functional parameters consistent with those of the roller washing machine to be tested;
s3: and if the second horizontal displacement value is smaller than the first horizontal displacement value and the second vertical displacement value is smaller than the first vertical displacement value at the preset rotating speed, recording the inner cylinder eccentricity of the roller prototype, wherein the inner cylinder eccentricity is the calibration eccentricity.
In one embodiment, if the second horizontal displacement value is greater than or equal to the first horizontal displacement value or the second vertical displacement value is greater than or equal to the first vertical displacement value at the preset rotation speed, the inner cylinder eccentricity of the roller prototype is reduced, and the step S2 is returned until the second horizontal displacement value is less than the first horizontal displacement value and the second vertical displacement value is less than the first vertical displacement value.
In one embodiment, before measuring the overall horizontal displacement and the vertical displacement of the outer drum of the drum washing machine to be measured, the method includes:
and adjusting the drum washing machine to be tested and the drum prototype to be in a full load state.
In one embodiment, the measuring the overall horizontal displacement and the outer drum vertical displacement of the drum washing machine to be measured at the preset rotation speed to obtain a first horizontal displacement value and a first vertical displacement value includes:
under the preset rotating speed, respectively measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured for N times, wherein N is an integer more than or equal to 20;
calculating the average value of the whole machine horizontal displacement of the drum washing machine to be measured in N times of measurement to obtain the first horizontal displacement value;
and calculating the average value of the vertical displacement of the outer cylinder of the drum washing machine to be measured in N times of measurement to obtain the first vertical displacement value.
In one embodiment, the measuring the overall horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured at the preset rotation speed to obtain a first horizontal displacement value and a first vertical displacement value includes:
and measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be detected at M preset rotating speeds to obtain M first horizontal displacement values and M first vertical displacement values, wherein M is an integer greater than or equal to 2.
In one embodiment, the measuring the overall horizontal displacement and the outer cylinder vertical displacement of the roller prototype at the preset rotation speed to obtain a second horizontal displacement value and a second vertical displacement value includes:
under the preset rotating speed, measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of the roller prototype for N times respectively;
calculating the average value of the whole machine horizontal displacement of the roller prototype in N times of measurement to obtain a second horizontal displacement value;
and calculating the average value of the vertical displacement of the outer cylinder of the roller prototype in N times of measurement to obtain the second vertical displacement value.
In one embodiment, the measuring the overall horizontal displacement and the outer cylinder vertical displacement of the roller prototype at the preset rotation speed to obtain a second horizontal displacement value and a second vertical displacement value includes:
and measuring the complete machine horizontal displacement and the outer cylinder vertical displacement of the roller prototype at M preset rotating speeds to obtain M second horizontal displacement values and M second vertical displacement values.
In one embodiment, the recording the inner cylinder eccentricity of the roller prototype, wherein the inner cylinder eccentricity is a calibration eccentricity, and the recording comprises the following steps:
and recording the inner cylinder eccentricity of the roller prototype for N times, and calculating the average value of the inner cylinder eccentricity in the N-time records to obtain the calibrated eccentricity.
In one embodiment, the recording the inner cylinder eccentricity of the roller prototype comprises:
and recording the inner cylinder eccentricity of the roller model machine when the preset rotating speed is 100-300 revolutions per minute.
A second aspect of the present application provides a drum washing machine detection device for performing the method of any one of the preceding claims, measuring the overall horizontal displacement and the tub vertical displacement of the drum washing machine, comprising: the washing machine comprises a washing machine box body, a washing machine outer barrel, a first vibration sensor and a second vibration sensor;
the first vibration sensor is arranged on the outer side of the washing machine box body, and the second vibration sensor is arranged on the outer side of the washing machine outer barrel.
The technical scheme provided by the application can comprise the following beneficial effects:
in a dehydration mode, under a preset rotating speed, measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of a drum washing machine to be tested to obtain a first horizontal displacement value and a first vertical displacement value, measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of a drum prototype to obtain a second horizontal displacement value and a second vertical displacement value, if the second horizontal displacement value is smaller than the first horizontal displacement value and the second vertical displacement value is smaller than the first vertical displacement value under the preset rotating speed, indicating that under the preset rotating speed, the vibration quantity of the whole machine of the drum prototype in the horizontal direction is smaller than the vibration quantity of the whole machine of the drum washing machine to be tested in the horizontal direction, and the vibration quantity of the outer cylinder of the drum prototype in the vertical direction is smaller than the vibration quantity of the outer cylinder of the drum washing machine to be tested in the vertical direction.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
FIG. 1 is a schematic flow chart of a first embodiment of an eccentricity reverse calibration method in an embodiment of the present application;
FIG. 2 is a schematic flow chart of a second embodiment of an eccentricity reverse calibration method in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a drum washing machine detection device according to an embodiment of the present application.
Detailed Description
Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
When the drum washing machine operates, the noise is the most intuitive feeling of people, particularly in the dehydration stage, the vibration of the whole machine in the horizontal direction and the vibration of the outer cylinder in the vertical direction are the main sources of the noise, the vibration is closely related to the eccentric amount of the inner cylinder, the related technology can limit the eccentric amount of the inner cylinder of the drum washing machine from the aspects of structural design, logic control programs and the like, the probability of displacement, cylinder collision, high-speed vibration and other phenomena of the whole machine is greatly reduced, most of the technologies mainly focus on how to accurately detect and limit the eccentric amount, less relate to how to calibrate the eccentric amount, calibrate the eccentric amount of the inner cylinder of a competitive product, and the production of products with smaller eccentric amount of the inner cylinder and better silencing effect is facilitated.
In view of the above problems, embodiments of the present application provide an eccentricity reverse calibration method and a drum washing machine detection device, which can reduce the eccentricity of an inner drum of a drum washing machine and improve the silencing effect of the drum washing machine.
The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Example one
Fig. 1 is a schematic flow chart of a first embodiment of an eccentricity reverse calibration method in an embodiment of the present application.
Referring to fig. 1, an embodiment of an eccentricity reverse calibration method in the embodiment of the present application includes:
101. in a dehydration mode, under a preset rotating speed, measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured to obtain a first horizontal displacement value and a first vertical displacement value;
because the noise source of the drum washing machine is mainly in the dehydration stage, the step is to measure the whole machine horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be tested in the dehydration mode, and the drum washing machine to be tested can be a competitive product drum washing machine and can also be any drum washing machine to be improved, and the step is not limited here.
The preset rotating speed is 100 to 1500 revolutions per minute, the vibration measurement of the outer cylinder mainly focuses on a low-speed interval, namely the vibration quantity of 100 to 300 revolutions per minute, and the vibration measurement of the box body mainly focuses on a medium-high speed interval of the whole machine, namely the vibration quantity of 600 to 1500 revolutions per minute.
In addition, before displacement measurement is carried out, the drum washing machine to be measured is required to be adjusted to be in a full-load state, actual loads are matched randomly according to specific conditions, and the maximum kilogram number of the machine type can be met.
102. In the dehydration mode, under the preset rotating speed, measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of the roller model machine to obtain a second horizontal displacement value and a second vertical displacement value;
the drum prototype is a model with the functional parameters consistent with those of the drum washing machine to be tested, and the functional parameters comprise a rotating speed range, specifications of an inner drum and an outer drum, specifications of a complete machine, a load range and the like.
And (4) placing the roller prototype under the same working condition as that of the roller washing machine to be tested, measuring the horizontal displacement of the whole machine and the vertical displacement of the outer cylinder again, wherein the preset rotating speed, load and displacement test points are consistent with those in the step (101).
In practical applications, there is no strict timing relationship between step 101 and step 102, i.e. they can be executed simultaneously, or any step is executed first, and this is not limited herein.
103. Judging whether the second horizontal displacement value is smaller than the first horizontal displacement value or not at a preset rotating speed;
because the magnitude of the displacement value represents the magnitude of the vibration quantity, the magnitude of the vibration quantity between the drum washing machine to be tested and the drum prototype in the horizontal direction of the whole machine can be compared by comparing the magnitude of the displacement value.
104. If the second horizontal displacement value is larger than or equal to the first horizontal displacement value, after the inner cylinder eccentricity of the roller prototype is reduced, returning to 102 to continuously measure the complete machine horizontal displacement of the roller prototype at the preset rotating speed until the second horizontal displacement value is smaller than the first horizontal displacement value.
105. If the second horizontal displacement value is smaller than the first horizontal displacement value, judging whether the second vertical displacement value is smaller than the first vertical displacement value;
the vibration quantity between the drum washing machine to be tested and the drum prototype in the vertical direction of the whole outer drum is compared by comparing the displacement value.
106. And if the second vertical displacement value is larger than or equal to the first vertical displacement value, after the inner cylinder eccentricity of the roller prototype is reduced, returning to 102 to continuously measure the outer cylinder vertical displacement of the roller prototype at the preset rotating speed until the second vertical displacement value is smaller than the first vertical displacement value.
107. And if the second vertical displacement value is smaller than the first vertical displacement value, recording the inner cylinder eccentricity of the roller model machine, wherein the inner cylinder eccentricity is the calibration eccentricity.
When the horizontal displacement of the whole machine and the vertical displacement of the outer cylinder of the roller prototype are both smaller than those of the roller washing machine to be tested, the vibration quantity of the roller prototype in the horizontal direction of the whole machine and the vertical direction of the outer cylinder are both smaller than those of the roller washing machine to be tested at the same preset rotating speed, namely the inner cylinder eccentricity of the roller prototype is smaller than that of the roller washing machine to be tested at the moment, the eccentricity of the roller prototype at the preset rotating speed is selected as the preset eccentricity of a new product design, and the silencing effect better than that of the roller washing machine to be tested can be obtained.
The eccentricity can be obtained by reading relevant parameters of the washing machine motor through corresponding software and then calculating.
The following advantageous effects can be obtained from the first embodiment:
in the embodiment, in a dehydration mode, under a preset rotating speed, the whole machine horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be tested are measured to obtain a first horizontal displacement value and a first vertical displacement value, the whole machine horizontal displacement and the outer cylinder vertical displacement of a drum prototype are measured to obtain a second horizontal displacement value and a second vertical displacement value, if under the preset rotating speed, the second horizontal displacement value is smaller than the first horizontal displacement value, and the second vertical displacement value is smaller than the first vertical displacement value, it is indicated that under the preset rotating speed, the vibration quantity of the whole machine of the drum prototype in the horizontal direction is smaller than the vibration quantity of the whole machine of the drum washing machine to be tested in the horizontal direction, and the vibration quantity of the whole machine of the drum prototype in the vertical direction is smaller than the vibration quantity of the outer cylinder of the drum washing machine to be tested in the vertical direction, because the vibration of the whole machine in the horizontal direction and the vibration of the outer cylinder in the vertical direction are main sources of the noise of the drum washing machine to be tested, the drum prototype is smaller than the vibration quantity in the horizontal direction and the outer cylinder vertical direction, namely, the noise of the drum prototype is recorded as the eccentric quantity, and the eccentric quantity, so that the drum washing machine to be tested can be better in the production of the drum washing machine to be tested.
Example two
In practical application, on the basis of the first embodiment, in order to ensure that the measurement data is representative, a plurality of tests may be performed, and an average value of the tests may be selected.
Fig. 2 is a schematic flow chart of a second embodiment of an eccentricity reverse calibration method in the embodiment of the present application.
Referring to fig. 2, an embodiment of the method for calibrating eccentricity in reverse direction in the embodiment of the present application includes:
201. respectively measuring the overall horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured for N times at a preset rotating speed;
and N is an integer more than or equal to 20, namely, the horizontal displacement of the complete machine and the vertical displacement of the outer cylinder are measured for at least 20 times at the same preset rotating speed.
202. Calculating the average value of the whole machine horizontal displacement of the drum washing machine to be measured in N times of measurement to obtain a first horizontal displacement value;
the N measured horizontal displacement values of the whole machine are summed and divided by N to obtain a first horizontal displacement value.
203. And calculating the average value of the vertical displacement of the outer cylinder of the drum washing machine to be measured in N times of measurement to obtain a first vertical displacement value.
The first vertical displacement value is obtained by dividing the summed values of the vertical displacement of the outer cylinder measured for the N times by N.
It should be noted that, the above averaging method is also adopted when measuring the overall horizontal displacement and the outer cylinder vertical displacement of the roller model machine, so as to obtain more representative data.
The following advantageous effects can be obtained from the second embodiment:
in the embodiment, the whole horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured and the whole horizontal displacement and the outer cylinder vertical displacement of the drum prototype are measured for multiple times at the same preset rotating speed, the average value of the whole horizontal displacement and the average value of the outer cylinder vertical displacement of the drum washing machine to be measured in multiple times of measurement are obtained, and the average value of the whole horizontal displacement and the average value of the outer cylinder vertical displacement of the drum prototype in multiple times of measurement are compared with single data, the average value smoothes extreme values in the data, so that the measured data are more representative.
EXAMPLE III
In practical applications, on the basis of the above embodiments, in order to make the displacement comparison between the drum washing machine to be tested and the drum prototype more comprehensive, the preset rotation speed may be set to be multiple.
Measuring the complete machine horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured at M preset rotating speeds to obtain M first horizontal displacement values and M first vertical displacement values, measuring the complete machine horizontal displacement and the outer cylinder vertical displacement of the drum prototype at M preset rotating speeds to obtain M second horizontal displacement values and M second vertical displacement values, wherein M is an integer greater than or equal to 2.
For example, the overall horizontal displacement and the outer cylinder vertical displacement of the drum washing machine and the drum prototype to be tested are measured and compared when the preset rotation speed is 100 rpm, the overall horizontal displacement and the outer cylinder vertical displacement of the drum washing machine and the drum prototype to be tested are measured and compared when the preset rotation speed is 200 rpm, the overall horizontal displacement and the outer cylinder vertical displacement of the drum washing machine and the drum prototype to be tested are measured and compared when the preset rotation speed is 600 rpm, and the like.
The following beneficial effects can be obtained from the third embodiment:
in the embodiment, the whole horizontal displacement of the drum washing machine to be tested and the drum prototype under a plurality of preset rotating speeds and the outer cylinder vertical displacement of the drum washing machine to be tested and the drum prototype are measured and compared, so that the displacement comparison of the drum washing machine to be tested and the drum prototype is more comprehensive.
Example four
In practical application, on the basis of the above embodiments, in order to eliminate errors and make the calibration eccentricity measure representative, it is also necessary to record the eccentricity of the inner cylinder of a plurality of roller prototypes and take an average value.
Under the preset rotation speed, measuring and comparing the whole horizontal displacement of the drum washing machine to be measured and the drum prototype for a plurality of times, and the outer cylinder vertical displacement of the drum washing machine to be measured and the drum prototype, recording the inner cylinder eccentricity of the drum prototype when the second horizontal displacement value is smaller than the first horizontal displacement value and the second vertical displacement value is smaller than the first vertical displacement value, after recording N times, calculating the average value of the inner cylinder eccentricity in N records to obtain the calibrated eccentricity, namely recording at least 20 times, and calculating the average value of the inner cylinder eccentricity in at least 20 records to obtain the calibrated eccentricity.
Further, when there are M preset rotation speeds, the average value needs to be calculated at each preset rotation speed, so as to obtain the eccentric amount at each preset rotation speed.
It should be noted that, when measuring and comparing the overall horizontal displacement of the drum washing machine and the drum prototype to be measured and the outer cylinder vertical displacement of the drum washing machine and the drum prototype to be measured for multiple times, the measurement and comparison are performed within the range of the preset rotating speed of 100 rpm to 1500 rpm, but when the second horizontal displacement value is smaller than the first horizontal displacement value within the range of the preset rotating speed of 100 rpm to 1500 rpm and the second vertical displacement value is smaller than the first vertical displacement value, only the inner cylinder eccentric amount within the range of the preset rotating speed of 100 rpm to 300 rpm is selected as the reference for calculating the average value.
The following advantageous effects can be obtained from the fourth embodiment:
in the embodiment, the eccentricity of the inner cylinder is recorded for multiple times at a single preset rotating speed and an average value is obtained, so that errors possibly caused by a small amount of eccentricity data can be eliminated, and the calibrated eccentricity is more representative.
EXAMPLE five
Corresponding to the embodiment of the application function realization method, the application also provides an embodiment of the detection device of the drum washing machine using the method.
Fig. 3 is a schematic structural diagram of a drum washing machine detection device according to an embodiment of the present application.
Referring to fig. 3, the drum washing machine detecting device includes: the washing machine comprises a washing machine box body 1, a washing machine outer barrel 2, a first vibration sensor 3 and a second vibration sensor 4, wherein the first vibration sensor 3 is arranged on the outer side of the washing machine box body 1 and used for executing the method and measuring the whole machine horizontal displacement of the drum washing machine, and the second vibration sensor 4 is arranged on the outer side of the washing machine outer barrel 2 and used for executing the method and measuring the outer barrel vertical displacement of the drum washing machine.
This first vibration sensor 3 and second vibration sensor 4 are three-way vibration sensor, measure complete machine horizontal displacement through set up three-way vibration sensor in the complete machine box outside at the drum type washing machine that awaits measuring, it measures urceolus vertical displacement to set up three-way vibration sensor in the urceolus outside at the drum type washing machine that awaits measuring, three-way vibration sensor does not do the injecing here in the position in complete machine box outside and the urceolus outside, as long as can be comparatively accurate measure complete machine horizontal displacement and urceolus vertical displacement can, in this embodiment, three-way vibration sensor sets up the upper left corner that leans on the front position in box one side, be close to complete machine front position with the urceolus outside.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Those skilled in the art should also appreciate that the acts and modules referred to in the specification are not necessarily required in the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. An eccentricity reverse calibration method is characterized in that:
s1: in a dehydration mode, under a preset rotating speed, measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured to obtain a first horizontal displacement value and a first vertical displacement value;
s2: in the dehydration mode, under the preset rotating speed, measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of a roller model machine to obtain a second horizontal displacement value and a second vertical displacement value, wherein the roller model machine is a machine type with the functional parameters consistent with those of the roller washing machine to be tested;
s3: and if the second horizontal displacement value is smaller than the first horizontal displacement value and the second vertical displacement value is smaller than the first vertical displacement value at the preset rotating speed, recording the inner cylinder eccentricity of the roller prototype, wherein the inner cylinder eccentricity is the calibration eccentricity.
2. The eccentricity reverse calibration method according to claim 1, wherein:
and if the second horizontal displacement value is greater than or equal to the first horizontal displacement value or the second vertical displacement value is greater than or equal to the first vertical displacement value at the preset rotating speed, reducing the inner cylinder eccentricity of the roller model machine, and returning to the step S2 until the second horizontal displacement value is less than the first horizontal displacement value and the second vertical displacement value is less than the first vertical displacement value.
3. The eccentricity reverse calibration method according to claim 1, wherein before measuring the overall horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured, the method comprises:
and adjusting the drum washing machine to be tested and the drum prototype to be in a full-load state.
4. The method for calibrating eccentricity reversely according to claim 1, wherein the measuring the overall horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured at the preset rotation speed to obtain a first horizontal displacement value and a first vertical displacement value comprises:
under the preset rotating speed, respectively measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured for N times, wherein N is an integer more than or equal to 20;
calculating the average value of the whole machine horizontal displacement of the drum washing machine to be measured in N times of measurement to obtain the first horizontal displacement value;
and calculating the average value of the vertical displacement of the outer cylinder of the drum washing machine to be measured in N times of measurement to obtain the first vertical displacement value.
5. The method for calibrating eccentricity reversely according to claim 1, wherein the measuring the overall horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be measured at the preset rotation speed to obtain a first horizontal displacement value and a first vertical displacement value comprises:
and measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of the drum washing machine to be detected at M preset rotating speeds to obtain M first horizontal displacement values and M first vertical displacement values, wherein M is an integer greater than or equal to 2.
6. The eccentricity reverse calibration method according to claim 1, wherein the step of measuring the overall horizontal displacement and the outer cylinder vertical displacement of the roller prototype at the preset rotation speed to obtain a second horizontal displacement value and a second vertical displacement value comprises:
under the preset rotating speed, measuring the whole machine horizontal displacement and the outer cylinder vertical displacement of the roller prototype for N times respectively;
calculating the average value of the whole machine horizontal displacement of the roller prototype in N times of measurement to obtain a second horizontal displacement value;
and calculating the average value of the vertical displacement of the outer cylinder of the roller prototype in N times of measurement to obtain the second vertical displacement value.
7. The eccentricity reverse calibration method according to claim 1, wherein the step of measuring the overall horizontal displacement and the outer cylinder vertical displacement of the roller prototype at the preset rotation speed to obtain a second horizontal displacement value and a second vertical displacement value comprises:
and measuring the complete machine horizontal displacement and the outer cylinder vertical displacement of the roller prototype at M preset rotating speeds to obtain M second horizontal displacement values and M second vertical displacement values.
8. The eccentricity reverse calibration method according to claim 1, wherein the step of recording the inner cylinder eccentricity of the roller prototype, wherein the inner cylinder eccentricity is a calibration eccentricity and comprises the following steps:
and recording the inner cylinder eccentricity of the roller prototype for N times, and calculating the average value of the inner cylinder eccentricity in the N-time records to obtain the calibrated eccentricity.
9. The eccentricity reverse calibration method according to claim 1, wherein the recording of the inner cylinder eccentricity of the roller prototype comprises:
and recording the inner cylinder eccentricity of the roller model machine when the preset rotating speed is 100-300 revolutions per minute.
10. A detection device for a drum washing machine, for performing the method of any one of claims 1 to 9, measuring the overall horizontal displacement and the outer tub vertical displacement of the drum washing machine, comprising: the washing machine comprises a washing machine box body (1), a washing machine outer barrel (2), a first vibration sensor (3) and a second vibration sensor (4);
the first vibration sensor (3) is arranged on the outer side of the washing machine box body (1), and the second vibration sensor (4) is arranged on the outer side of the washing machine outer barrel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210073211.2A CN114622378B (en) | 2022-01-21 | 2022-01-21 | Eccentricity reverse calibration method and drum washing machine detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210073211.2A CN114622378B (en) | 2022-01-21 | 2022-01-21 | Eccentricity reverse calibration method and drum washing machine detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114622378A CN114622378A (en) | 2022-06-14 |
| CN114622378B true CN114622378B (en) | 2023-03-07 |
Family
ID=81897980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210073211.2A Active CN114622378B (en) | 2022-01-21 | 2022-01-21 | Eccentricity reverse calibration method and drum washing machine detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114622378B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005177089A (en) * | 2003-12-18 | 2005-07-07 | Sanyo Electric Co Ltd | Drum type washing machine |
| CN105556024A (en) * | 2013-07-22 | 2016-05-04 | Lg电子株式会社 | Laundry treatment machine |
| CN106436172A (en) * | 2016-11-01 | 2017-02-22 | 广东威灵电机制造有限公司 | Washing machine and imbalance testing method and device thereof |
| CN106868785A (en) * | 2017-02-10 | 2017-06-20 | 无锡小天鹅股份有限公司 | Load Eccentric Adjusting Method and device based on roller washing machine |
| CN109563667A (en) * | 2016-08-10 | 2019-04-02 | 青岛海尔洗衣机有限公司 | The control method of roller washing machine |
| CN110387653A (en) * | 2018-04-17 | 2019-10-29 | 无锡小天鹅电器有限公司 | Washing machine and its inner cylinder |
| CN112760917A (en) * | 2020-12-14 | 2021-05-07 | 珠海格力电器股份有限公司 | Eccentricity detection control device, control method and washing machine |
| CN113403803A (en) * | 2021-07-06 | 2021-09-17 | 海信（山东）冰箱有限公司 | Washing machine dehydration method and washing machine |
-
2022
- 2022-01-21 CN CN202210073211.2A patent/CN114622378B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005177089A (en) * | 2003-12-18 | 2005-07-07 | Sanyo Electric Co Ltd | Drum type washing machine |
| CN105556024A (en) * | 2013-07-22 | 2016-05-04 | Lg电子株式会社 | Laundry treatment machine |
| CN109563667A (en) * | 2016-08-10 | 2019-04-02 | 青岛海尔洗衣机有限公司 | The control method of roller washing machine |
| CN106436172A (en) * | 2016-11-01 | 2017-02-22 | 广东威灵电机制造有限公司 | Washing machine and imbalance testing method and device thereof |
| CN106868785A (en) * | 2017-02-10 | 2017-06-20 | 无锡小天鹅股份有限公司 | Load Eccentric Adjusting Method and device based on roller washing machine |
| CN110387653A (en) * | 2018-04-17 | 2019-10-29 | 无锡小天鹅电器有限公司 | Washing machine and its inner cylinder |
| CN112760917A (en) * | 2020-12-14 | 2021-05-07 | 珠海格力电器股份有限公司 | Eccentricity detection control device, control method and washing machine |
| CN113403803A (en) * | 2021-07-06 | 2021-09-17 | 海信（山东）冰箱有限公司 | Washing machine dehydration method and washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114622378A (en) | 2022-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8146433B2 (en) | Failure detect device and failure detect method | |
| CN108561235A (en) | Engine progress control method and device | |
| CN114622378B (en) | Eccentricity reverse calibration method and drum washing machine detection device | |
| CN102243143A (en) | Bearing abnormal sound detection control method and bearing vibration measuring instrument | |
| CN101950228B (en) | Touch control point detection method | |
| CN103276556B (en) | Improved washing machine fuzzy control method | |
| JP2006300613A (en) | Tire testing device and tire testing method | |
| US20060123909A1 (en) | Method and arrangement for detecting parameters in displacement or angle sensors | |
| CN110530618B (en) | Torque measuring device and method for power system | |
| CN109974832B (en) | Algorithm for amplitude of high-speed shaking system | |
| CN111985315A (en) | Bearing fault signal intrinsic mode function decomposition and extraction method and device | |
| CN116164969A (en) | Critical rotation speed detection method, device and storage medium | |
| CN114414144B (en) | Dynamic balancing machine control method for detecting motion state of motor rotor | |
| JP3478275B2 (en) | Gear noise measurement method | |
| CN109100005B (en) | Clothes weight sensing method and system | |
| JP2000314679A (en) | Method and device for testing gear | |
| CN105627988A (en) | Inclination detecting method and system for motor rotor detection disc | |
| CN106685279A (en) | Method and device for detecting Hall signals of motor | |
| CN103546076B (en) | Turn count method and apply its computer readable media | |
| KR20220005305A (en) | Vibration diagnosis method of rotating machine | |
| CN113430778B (en) | Eccentricity detection method for drum washing machine, drum washing machine and control method thereof | |
| JPS60170720A (en) | Reference position detector for internal-combustion engine | |
| CN104636584B (en) | Ball screw runs the diagnostic method of smooth degree | |
| CN113485287B (en) | Multi-granularity measurement dynamic system fault diagnosis method and system | |
| JPH0450731A (en) | Rotary machine fault diagnostic system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |