CN105928670A - Washing machine barrel bottom and impeller airtightness detection method and equipment - Google Patents
Washing machine barrel bottom and impeller airtightness detection method and equipment Download PDFInfo
- Publication number
- CN105928670A CN105928670A CN201610315756.4A CN201610315756A CN105928670A CN 105928670 A CN105928670 A CN 105928670A CN 201610315756 A CN201610315756 A CN 201610315756A CN 105928670 A CN105928670 A CN 105928670A
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- China
- Prior art keywords
- annular seal
- seal space
- mold
- impeller
- detection
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to a washing machine barrel bottom and impeller airtightness detection method and equipment. The objective of the invention is to provide an airtightness detection method and equipment which is used for an airtight cavity after the deposition of the barrel bottom and impeller of a washing machine. In order to achieve the above purpose, the equipment comprises a mechanical operation part which is used for opening and closing a detection airtight cavity for placing a workpiece; and an air passage part which is used for judging the sealing performance of the workpiece through the air pressure change of an air passage.
Description
Technical field
The present invention relates to the method and apparatus of a kind of sealing propertytest.More particularly at the bottom of a kind of washing machine drum, impeller
The method and apparatus of sealing propertytest.
Background technology
With making washing machine upgrading, a new generation's drum head of washing machine, impeller have main body and capping two parts, by heat
Main body and capping are connected to the structure of one by deposition, have an airtight cavity in the middle of such integrative-structure.Because technique is wanted
Ask drum head, impeller closed cavity it has to be ensured that sealing, it is impossible to enter water or dust, thus need one detection drum head,
The method and apparatus of impeller closed cavity.
Because the aperture that the closed cavity of drum head, impeller does not communicates with the external world, and the sealing cavity of drum head, impeller accounts for
The overall ratio containing space is less.So the sealing sealing cavity cannot be detected by existing gas injection or vacuum pumping technology
Property.
Summary of the invention
For the technical problem of above-mentioned existence, it is an object of the invention to: propose a kind of feasible at the bottom of washing machine drum,
The method and apparatus of the airtight detection of impeller.
The method of the present invention is achieved in that and air accumulator A equal for two volumes and air accumulator B is filled with equal pressure
Compressed air.Then by air accumulator A and comparison standard gas cylinders or put into the detection annular seal space of qualified workpiece and be connected；By air accumulator
B is connected with the detection annular seal space putting into workpiece to be checked.Until air-flow steadily after, with differential pressure type airtight detector detection air accumulator A with
The air pressure of air accumulator B.The volume of comparison standard gas cylinders is equal with the volume of the detection annular seal space putting into workpiece to be checked, i.e. pieces O.K.
Gas circuit is the most identical with the tolerance of workpiece for measurement gas circuit and volume.If the sealing of workpiece to be checked is poor, the high pressure in air accumulator B is empty
Gas can enter in the closed cavity of workpiece to be checked, causes the air pressure of air accumulator B to compare low to the air pressure of standard gas cylinders.Otherwise, storage
Gas tank A is equal with the air pressure of air accumulator B.
The equipment of the present invention is based on the supporting making of above-mentioned detection method.Including a frame, frame top is provided with gas-liquid
Pressurized cylinder, middle part is provided with deck plate, and bottom is provided with air accumulator, comparison standard gas cylinders, airtight detector, pressure transducer.Institute
State pneumohydraulic pressure-cylinder and stretch out rod end one piece of rebound of connection, equipped with upper detection annular seal space and mold on this rebound.Described
Equipped with lower detection annular seal space and lower mold on panel.Detection annular seal space is fully sealed by the pressure downward by pneumohydraulic pressure-cylinder.
Due to said method and the utilization of equipment, it is achieved that at the bottom of washing machine drum, the detection of impeller sealing.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Accompanying drawing 1 is the schematic diagram of the present invention；
Accompanying drawing 2 is the device structure axis side view of the present invention；
Accompanying drawing 3 is the device structure front view of the present invention；
Accompanying drawing 4 is the device structure left view of the present invention；
Accompanying drawing 5 is upper detection annular seal space and the mold installation diagram of the present invention；
Accompanying drawing 6 is lower detection annular seal space and the lower mold installation diagram of the present invention；
Wherein: 1, pneumohydraulic pressure-cylinder；2, frame；3, rebound；4, guide pin bushing；41, guide pillar；5, deck plate；6, comparison standard gas cylinders；
7, air accumulator A；8, air accumulator B；9, airtight detector；10, lower detection annular seal space；11, upper detection annular seal space；12, lower mold；
13, mold；14, pull bar.
Detailed description of the invention
The present invention is described below in conjunction with the accompanying drawings.
Accompanying drawing 1 is at the bottom of a kind of washing machine drum of the present invention, impeller method for conducting leak test and equipment
Detection method schematic diagram.During original state, each gas circuit cavity is normal ambient pressure, and valve 1, valve 3, valve 5, valve 6 are closed；
Opening valve 2, valve 4 during test, air inlet pipe is filled with a certain amount of compressed air to air accumulator A, air accumulator B, makes volume of gas storage tank, gas
Press the most equal；Turn off valve 2, valve 4, open valve 1 and make air accumulator A connect with comparison standard gas cylinders, open valve 3 make air accumulator B with
Detection annular seal space connection；
After standing a period of time, airtight detector compare the draught head of air accumulator A and air accumulator B.If draught head is wanted in technique
In seeking allowed band, then it represents that workpiece is qualified, if exceeding, then it represents that workpiece is defective；Close valve closing 1, valve 3, open valve 5, valve 6,
Discharge detection annular seal space and the compressed air of standard gas cylinders.Air inlet pipe is to gas storage simultaneously；Air accumulator A and air accumulator B inflation, under
One-time detection prepares；Open detection annular seal space, take out workpiece.
Accompanying drawing 2,3,4,5,6 is at the bottom of a kind of washing machine drum of the present invention, impeller method for conducting leak test and equipment
Device structure schematic diagram.Including a frame 2, frame 2 top is provided with pneumohydraulic pressure-cylinder 1, and middle part is provided with deck plate 5, and bottom is installed
There are air accumulator A7, air accumulator B8, comparison standard gas cylinders 6, airtight detector 9.Described pneumohydraulic pressure-cylinder 1 stretches out rod end and connects one piece
Rebound 3, equipped with upper detection annular seal space 11 and mold 13 on this rebound.Equipped with lower detection annular seal space on described deck plate 5
10 and lower mold 12.It is internal that mold 13 is arranged on detection annular seal space 11, and lower mold 12 is arranged in lower detection annular seal space 10
Portion.
Described deck plate 5 is also equipped with guide pillar 41 and pull bar 14 between frame top board.
Upper detection annular seal space 11 and lower detection annular seal space 10 are fastened by the pressure completely downward by pneumohydraulic pressure-cylinder 1, group
Become a complete detection annular seal space.
Mold 13 and lower mold 12 are mainly used in filling the space in detection annular seal space, make the sealing of drum head, impeller
Position accounts for the ratio of dischargeable capacity in detection annular seal space and becomes big, makes the possibility that airtight test becomes.Mould can also make drum head, impeller fixed
Position.
Above-described embodiment, only for technology design and the feature of the explanation present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and is carried out, and can not limit the scope of the invention with this, all according to the present invention
The equivalence that spirit is made changes or modifies, and all should contain within the scope of the present invention.
Claims (5)
1. at the bottom of washing machine drum, impeller method for conducting leak test and an equipment, described equipment includes:
Mechanical action part, lays the detection annular seal space of workpiece for folding；And air path part, for by the air pressure of gas circuit
Change judges the sealing property of workpiece.
Mechanical action part the most according to claim 1, it is characterised in that: described mechanical action part includes a frame,
Frame top is provided with pneumohydraulic pressure-cylinder, and this pneumohydraulic pressure-cylinder stretches out rod end and connects one piece of rebound, equipped with upper inspection on this rebound
Survey annular seal space and mold；It is provided with deck plate, equipped with lower detection annular seal space and lower mold, institute on this deck plate in the middle of described frame
State frame lower and air accumulator, comparison standard gas cylinders and airtight detector are installed.
Deck plate the most according to claim 3, it is characterised in that: be also equipped with on four angles of described deck plate guide pillar and
Pull bar.
Rebound the most according to claim 2, it is characterised in that: it is also equipped with guide pin bushing on four angles of described rebound,
Guide pin bushing slides on the guide pillar described in claim 3.
Mold the most according to claim 2 and lower mold, it is characterised in that: described mold is arranged on detection and seals
Intracavity portion, described lower mold is arranged on inside lower detection annular seal space, is mainly used in filling the space in detection annular seal space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315756.4A CN105928670A (en) | 2016-05-14 | 2016-05-14 | Washing machine barrel bottom and impeller airtightness detection method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315756.4A CN105928670A (en) | 2016-05-14 | 2016-05-14 | Washing machine barrel bottom and impeller airtightness detection method and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105928670A true CN105928670A (en) | 2016-09-07 |
Family
ID=56835817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610315756.4A Pending CN105928670A (en) | 2016-05-14 | 2016-05-14 | Washing machine barrel bottom and impeller airtightness detection method and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105928670A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860529A (en) * | 2017-10-18 | 2018-03-30 | 歌尔股份有限公司 | Air cavity in air-leakage test is to holding method and device |
| CN112414642A (en) * | 2019-08-21 | 2021-02-26 | 青岛海尔洗衣机有限公司 | Method for detecting sealing performance of water containing barrel of clothes treatment equipment |
| CN112414643A (en) * | 2019-08-21 | 2021-02-26 | 青岛海尔洗衣机有限公司 | Device for detecting sealing performance of water containing barrel of clothes treatment equipment |
-
2016
- 2016-05-14 CN CN201610315756.4A patent/CN105928670A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860529A (en) * | 2017-10-18 | 2018-03-30 | 歌尔股份有限公司 | Air cavity in air-leakage test is to holding method and device |
| CN107860529B (en) * | 2017-10-18 | 2019-08-02 | 歌尔股份有限公司 | Air cavity in air-leakage test is to appearance method and device |
| CN112414642A (en) * | 2019-08-21 | 2021-02-26 | 青岛海尔洗衣机有限公司 | Method for detecting sealing performance of water containing barrel of clothes treatment equipment |
| CN112414643A (en) * | 2019-08-21 | 2021-02-26 | 青岛海尔洗衣机有限公司 | Device for detecting sealing performance of water containing barrel of clothes treatment equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 224700 No. 69 Jianbao North Road, Jianhu County, Yancheng City, Jiangsu Province Applicant after: Yancheng Henghua made Technology Co. Ltd. Address before: 224700 No. 69 Jianbao North Road, Jianhu County, Yancheng City, Jiangsu Province Applicant before: Jianhu Henghua Electrical Co., Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160907 |