CN206073967U - A kind of gap detection device between compressor drum and stator - Google Patents
A kind of gap detection device between compressor drum and stator Download PDFInfo
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- CN206073967U CN206073967U CN201621120096.6U CN201621120096U CN206073967U CN 206073967 U CN206073967 U CN 206073967U CN 201621120096 U CN201621120096 U CN 201621120096U CN 206073967 U CN206073967 U CN 206073967U
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Abstract
The utility model discloses the gap detection device between a kind of compressor drum and stator, including for providing the electric supply installation of compressor power, for the acceleration transducer of test compression machine acceleration, the acquisition module of the compressor acceleration signal for judging the whether qualified processor in the gap between compressor drum and stator and for the test of dynamic acquisition acceleration transducer, described acquisition module is arranged between acceleration transducer and processor, the Dynamic Signal of collection is resolved into the acceleration information of different frequency sections by processor.This utility model need not from compressor housing, car be opened by compressor top cover, is improve between the rotor and stator in compression case body whether satisfactory judging efficiency, is saved production cost；Rework cost is reduced, testing efficiency is improve, it is adaptable to which mass compresses machine testing, improves the quality of product.
Description
Technical field
This utility model belongs to Compression Test Technique field, and in particular between a kind of compressor drum and stator
Clearance detection apparatus.
Background technology
In compressor production technical field, need between the rotor and stator in compression case body after compressor production
Gap detected, with the gap guaranteed between rotor and stator meet in industry require, it is ensured that compressor quality.Existing pressure
After compressor production, what the gap between rotor and stator was detected is main in following two situations for Suo Ji manufacturing enterprises
Carry out：A kind of situation is that compressor crown drowning has welding, then directly available spacer shims are checked；Another kind of situation is group
Dress up compressor, i.e. compressor case and top cover has been welded and fixed, then the top cover of compressor can only be fallen with lathe car
After could be checked with spacer shims, from case above it can be seen that the existing clearance inspection method turned between word and stator is deposited
In limitation.When some processing procedure reasons cause the gap that large batch of compressor is deposited between rotor and stator undesirable,
Then need the undesirable compressor in gap between rotor and stator is filtered out in large batch of compressor, by existing
Method can only be checked after first covering for roofs again, increase heavy industry cost.
Therefore, for being assembled into the large quantities of capacity compressors for welding housing and top cover, how to overcome existing
In order to the gap between rotor and stator is judged on the premise of not covering for roofs, by rotor and the pressure of the illegal requirement of stator gap
Contracting machine is picked out from large quantities of capacity compressor products, improves detection efficiency, and reduces cost becomes difficult point and the side of Corporation R ＆ D
To.
The content of the invention
In view of this, the technical problems to be solved in the utility model is a kind of practical, and detection efficiency is high, testing cost
Gap detection device between low compressor drum and stator, improves enterprise and rotor is filtered out from large quantities of capacity compressors and is determined
The efficiency of the compressor of the illegal requirement in sub- gap.
In order to solve above-mentioned technical problem, this utility model is realized using following scheme：A kind of compressor drum and stator
Between gap detection device, including for provide compressor power electric supply installation, for test compression machine acceleration plus
Velocity sensor, for judging the whether qualified processor in the gap between compressor drum and stator and being used for dynamic acquisition
The acquisition module of the compressor acceleration signal of acceleration transducer test, described acquisition module are arranged on acceleration transducer
And processor between, the acceleration information of different frequency sections resolves into the Dynamic Signal of collection by processor.
Preferably, described acceleration transducer is accelerometer.
Preferably, described acquisition module is dynamic signal acquisition module.
Preferably, described processor is computer.
Compared with prior art, this utility model by the satisfactory compressor in gap between rotor and stator and
The undesirable compressor in gap between rotor and stator is studied, and is found difference between the two, is developed one kind
Gap detection method and apparatus between the rotor and stator of new compressor, and need not be by compressor top cover from compressor housing
Middle car is opened, and is improve between the rotor and stator in compression case body whether satisfactory judging efficiency, is saved production cost；
Rotating speed with gap rotor and stator between relevant principle of this utility model using compressor, and the rotor in compressor and
Gap between stator is different, causes rotor unbalance stress in the magnetic field that stator is produced, so as to the acceleration also not phase of generation
Same principle is detected to compressor, during test, it is only necessary to which acceleration transducer device is affixed on compressor housing to compressor
It is unloaded be powered after acceleration information be acquired, and according to the compressor acceleration information of collection judge in compressor turn
Whether the gap between son and stator meets the requirements, and compressor will not be destroyed, reduce rework cost, improve test
Efficiency, it is adaptable to which mass compresses machine testing；Rotor and stator between gap satisfactory non-defective unit compression is avoided that simultaneously also
Machine is detected by covering for roofs in detection process, and is completed to welding top cover process behind the gap between rotor and stator again
In, because iron filings fall into risk in compressor in heavy industry, improve the quality of product.
Description of the drawings
Fig. 1 is the overhaul flow chart that method is surveyed in the gap between compressor drum of the present utility model and stator.
Fig. 2 is that schematic diagram of device is surveyed in the gap between compressor drum of the present utility model and stator.
Wherein, 1 electric supply installation；2 acceleration transducers；3 processors；4 acquisition modules.
Specific embodiment
In order to allow those skilled in the art to more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings to this
Utility model is further elaborated.
As shown in Fig. 2 the gap detection device between a kind of compressor drum and stator, including electromechanical for providing compression
The electric supply installation 1 in source, for the acceleration transducer 2 of test compression machine acceleration, for judge compressor drum and stator it
Between the whether qualified processor 3 in gap and the compressor acceleration signal for the test of dynamic acquisition acceleration transducer 2
Acquisition module 4, described acquisition module 4 is arranged between acceleration transducer 2 and processor 3, by processor 3 collection
Dynamic Signal resolve into the acceleration information of different frequency sections.
This device has low cost, practical, and equipment raw material sources are extensively, and described acceleration transducer 2 is
Accelerometer.The accelerometer is that accelerometer that is selling in the market and can gathering acceleration information is capable of achieving.Described
Processor 3 is computer, and in the computer is provided with analysis software, and the analysis software can intercept difference to the signal for gathering
Acceleration under frequency band.Described acquisition module 4 is to sell on market, and can convert data to the information of the signal of telecommunication,
And it is capable of the dynamic signal acquisition module of the compressor acceleration information of dynamic acquisition accelerometer test.
During test, electric supply installation 1 is connected with compressor, and is offer power supply, computer and external power source to compressor
Accelerometer is affixed on the fixed position of compressor case, and the acceleration information of real-time testing compressor by connection.Described calculating
MATLAB Complier Runtime R2012a softwares are installed in machine, the software is existing software.Described Dynamic Signal
Acquisition module uses model NI USB-9234 data acquisition cards and installs 9.4 drivers of NI-DAQmx in capture card.
The software may be referred to existing vibration of compressor, noise measuring software and be capable of achieving.
NI-DAQmx 9.4 is installed in above-described MATLAB Complier Runtime R2012a softwares, capture card
Driver is existing software program, and can commercially obtain, it is not in the protection domain of utility model, described
Dynamic signal acquisition module, can also be similar using other functions in addition to using model NI USB-9234 data acquisition cards
And the dynamic signal acquisition module of the function can be realized, explanation is not enumerated again.
This utility model additionally provides a kind of gap detection method between compressor drum and stator, the gap detection side
Method based on the gap detection device between the compressor drum and stator described in above example, its specific gap detection side
The flow process of method is as shown in Figure 1.
As shown in figure 1, a kind of gap detection method between compressor drum and stator, comprises the following steps：
S1 gather gap between multiple stage rotor and stator meet the requirements the gap and rotor and stator between meet should not ask and
For the acceleration information of certain frequency band of compressor；Which comprises the following steps that：
S11 chooses the known satisfactory qualified compressor in gap and known multiple stage gap between multiple stage rotor and stator
Underproof compressor, and gap qualified compressor of the gap of the qualified compressor in gap comprising allowable clearance lower limit and
The qualified compressor in the gap of allowable upper limit value, the underproof compressor in gap are to produce less than the production line of allowable clearance lower limit
Defective products.
S12 carries out energization work to the compressor chosen in step 1, makes compressor idle running work, while outside compressor
The fixed position of shell measures the acceleration information of compressor using accelerometer, and the acceleration information of collection is converted into simulation electricity
Source signal.Accelerometer sends the analog voltage signal of simulation output to dynamic signal acquisition module.
S13 dynamic signal acquisition modules collect the analog voltage signal of accelerometer output, while exporting into digitized letter
Number for processor process；Dynamic signal acquisition module maximum can gather the accelerometer signal of 4 passages simultaneously, according to what is chosen
The quantity of the model selector channel of accelerometer.Accelerometer can select the acceleration letter of the acceleration information and three axles of measurement single shaft
Breath, is attached using the respective channel of dynamic signal acquisition module according to the model of different accelerometers, gathers different adding
Velocity information.When accelerometer is three axle, three axial directions of compressor case same point can be measured（Shell is radially, tangentially and axially）
Acceleration, accelerometer are the uniaxially acceleration that can measure compressor diverse location for single shaft.
The digitized signal of dynamic signal acquisition module each channel transfer can be processed into certain frequency by S14 processors
The acceleration of section；
S15 is surveyed in these frequency bands by comparing the unqualified compressor of the qualified compressor of known gap and gap chosen
The acceleration of certain frequency band of obvious difference can be judged by the acceleration difference of amount as follow-up test compressor clearance
Reference value.
As reference in the acceleration information input computer of compressor obvious difference certain frequency band of the above-mentioned collections of S2
Information, and this time on the basis of treat the acceleration information that test compression machine gathers with reference to information and judged.
S3 is gathered the acceleration information of compressor to be tested and is contrasted with reference information, judges compressor drum and stator
Between gap it is whether qualified, so that it is determined that whether compressor is certified products.Which concretely comprises the following steps：
The acceleration information on compressor case to be tested is gathered, and the acceleration information of collection is carried out with reference information
Relatively, if the acceleration information of collection is more than reference information, judge that gap is not inconsistent between the rotor inside compressor and stator
Close and require, so as to judge that compressor is defective work；
If the acceleration information of collection is less than or equal to reference information, judge between the rotor inside compressor and stator
Gap meets the requirements, so as to judge that compressor is certified products.
In order to control gather acceleration information it is accurate, it is to avoid the acceleration information error on the compressor housing of collection compared with
Greatly, should be with collection certified products compressor in the position of the acceleration information that compressor housing to be tested is gathered using accelerometer
The position of acceleration information is identical or adjacent, that is, gather position and the certified products pressure of the acceleration information of compressor case to be tested
The collection information position of contracting machine is identical or gathers the position of the acceleration information of compressor case to be tested and certified products compressor
Collection information alternate position spike should control in 3 times of accelerometer diameter, it is less with the error for guaranteeing the acceleration information for gathering,
Raising judges precision and accuracy.
This utility model changes the clearance test mode between traditional rotor and stator, using compressor rotating speed with
The relevant principle in gap between rotor and stator, and as the gap between the rotor and stator in compressor is different, cause
Rotor unbalance stress in the magnetic field that stator is produced, so as to the principle that the acceleration for producing also is differed is examined to compressor
Survey, during test, it is only necessary to which acceleration transducer is affixed on into the acceleration information after unloaded energization of the compressor housing to compressor
It is acquired, and whether the compressor acceleration information according to collection and the gap between the rotor and stator of collection meets the requirements
The acceleration information of certified products compressor be compared, judge whether the gap between the rotor in compressor and stator meets
Require.The gap between the rotor and stator inside compressor is examined using device of the present utility model and method of testing
Survey, compressor will not be destroyed, reduce rework cost, improve testing efficiency, it is adaptable to which mass compresses machine testing；
Also be avoided that gap non-defective unit is carried out having examined by covering for roofs and welds top cover again behind gap simultaneously during, because in heavy industry, iron filings fall into pressure
Risk in contracting machine, improves the quality of product.
The signal of four passages of the dynamic signal acquisition module described in above example can be same frequency band
Compressor acceleration information, can also be the compressor acceleration information of different frequency sections, with specific reference to real-time testing need
It is adjusted.It is not elaborated again.
Above-described embodiment is only wherein specific implementation of the present utility model, and its description is more concrete and detailed, but and
Therefore the restriction to this utility model the scope of the claims can not be interpreted as.It should be pointed out that for the ordinary skill of this area
For personnel, without departing from the concept of the premise utility, some deformations and improvement can also be made, these are apparent
Alternative forms belong to protection domain of the present utility model.
Claims (4)
1. the gap detection device between a kind of compressor drum and stator, it is characterised in that include electromechanical for providing compression
The electric supply installation in source（1）, for the acceleration transducer of test compression machine acceleration（2）, for judging compressor drum and determining
The whether qualified processor in gap between son（3）And it is used for dynamic acquisition acceleration transducer（2）The compressor of test adds
The acquisition module of rate signal（4）, described acquisition module（4）It is arranged on acceleration transducer（2）And processor（3）Between,
By processor（3）The Dynamic Signal of collection is resolved into the acceleration information of different frequency sections.
2. the gap detection device between compressor drum according to claim 1 and stator, it is characterised in that described
Acceleration transducer（2）For accelerometer.
3. the gap detection device between compressor drum according to claim 2 and stator, it is characterised in that described
Acquisition module（4）For dynamic signal acquisition module.
4. the gap detection device between compressor drum according to claim 3 and stator, it is characterised in that described
Processor（3）For computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621120096.6U CN206073967U (en) | 2016-10-13 | 2016-10-13 | A kind of gap detection device between compressor drum and stator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621120096.6U CN206073967U (en) | 2016-10-13 | 2016-10-13 | A kind of gap detection device between compressor drum and stator |
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| Publication Number | Publication Date |
|---|---|
| CN206073967U true CN206073967U (en) | 2017-04-05 |
Family
ID=58440972
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621120096.6U Active CN206073967U (en) | 2016-10-13 | 2016-10-13 | A kind of gap detection device between compressor drum and stator |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403880A (en) * | 2016-10-13 | 2017-02-15 | Tcl瑞智（惠州）制冷设备有限公司 | Method and device for detecting clearance between rotor and stator of compressor |
| CN113239489A (en) * | 2021-05-12 | 2021-08-10 | 四川长虹空调有限公司 | Simulation evaluation method for vibration of variable-frequency single-rotor compressor |
-
2016
- 2016-10-13 CN CN201621120096.6U patent/CN206073967U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403880A (en) * | 2016-10-13 | 2017-02-15 | Tcl瑞智（惠州）制冷设备有限公司 | Method and device for detecting clearance between rotor and stator of compressor |
| CN106403880B (en) * | 2016-10-13 | 2020-02-04 | Tcl瑞智（惠州）制冷设备有限公司 | Method and device for detecting clearance between compressor rotor and stator |
| CN113239489A (en) * | 2021-05-12 | 2021-08-10 | 四川长虹空调有限公司 | Simulation evaluation method for vibration of variable-frequency single-rotor compressor |
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