CN2250368Y - Integrated dehydrating drum without lateral holes - Google Patents
Integrated dehydrating drum without lateral holes Download PDFInfo
- Publication number
- CN2250368Y CN2250368Y CN 95241073 CN95241073U CN2250368Y CN 2250368 Y CN2250368 Y CN 2250368Y CN 95241073 CN95241073 CN 95241073 CN 95241073 U CN95241073 U CN 95241073U CN 2250368 Y CN2250368 Y CN 2250368Y
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- CN
- China
- Prior art keywords
- spin dryer
- dryer tube
- balance ring
- staving
- soft lid
- 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.)
- Expired - Fee Related
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- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The utility model relates to an integrated dehydrating drum without lateral holes, which is a new design for a dehydrating drum of a washer, belonging to the technical field of washers. The utility model cancels a conventional balance ring, and a drum body is designed into a conical structure without lateral holes. While in work, water is dehydrated from the opening of the drum body. The required equipment for manufacturing the product of the utility model is reduced, and the manufacturing process of the product is simplified. The quality of product is guaranteed and improved, the yield is obvious raised, and the production efficiency is increased, so the cost is necessarily reduced.
Description
The utility model is the spin dryer tube of dehydration machine (or mechanism) usefulness, belongs to the washing machine technical field.
Washing machine is widely used, and existing two-tub washing machine (seeing figure one) mainly is made up of washing part [waiting other part to form by washing cover plate (1)], console part [console (2)], dehydration part and base (12).And the dehydration part, structurally all be that power source (15), transmission mechanism (16), spin dryer tube (8), steel ladle (7), soft lid (9) and some subsidiary bodies [contain rubber water sealing, water seal piston ring, piston ring nut in interior water-sealed component (11), frame lid (3), drip water plate (5), water injection box (17), dehydration cover plate (4) etc.].And the core texture of this class machine (or mechanism) is a spin dryer tube (8), with plastics spin dryer tube (8) is example (figure), after last ring (8-1-4), following ring (8-1-3) welding well, in the chamber that two rings form, inject a certain amount of sodium chloride saturated solution (8-1-2), use stopper (8-1-1) to seal inlet and become balance ring (8-1) again, again balance ring is welded on the staving (8-2), and becomes a spin dryer tube.Design the side opening of regular distribution all around because of staving (8-2), then the mould of staving (8-2) requires the outer side core-pulling of several directions, when injection mo(u)lding, also cause the became uneven of barrel wall easily, make the balance quality of staving (8-2) poor (mainly referring to dynamic and static balance aspect), thereby influence machine performance, produce vibration, noise.The manufacturing cycle of this as can be seen spin dryer tube (8) is long, and complex process and requirement are high, makes quality of item be difficult to guarantee that this will inevitably influence the stability of complete machine performance, makes the cost of spin dryer tube also high simultaneously.In addition, balance ring weld flash is irregular, thereby has influenced the outward appearance of goods (particularly complete machines).The starting point of balance ring (8-1) design is: when spin dryer tube (8) rotates, utilize liquid (8-1-2) relative motion with it of its inner chamber, make liquid (8-1-2) uneven distribution, reduce the size of making a concerted effort on spin dryer tube (8) horizontal direction, finally reduce the Oscillation Amplitude of spin dryer tube (8); In addition, increase spin dryer tube (8) rigidity exactly.But the balance ring of the two-tub washing machine that overall view is domestic (8-1) is fluid injection body not all, and obviously the inner chamber of balance ring (8-1) is illusory! Why is not fluid injection of balance ring (8-1) body also? reason is power source (17)---supported by elastic system [mainly being four springs (13)] below the motor, this elastic system has cushioning effect, and the diameter of spin dryer tube (8) is also little.Why not does balance ring (8-1) change so? reason roughly has two: one, the structure that comes to this when introducing, does not expect and will change, and maybe dare not change; Two, balance ring (8-1) can block the soft lid (9) in the bucket, has changed balance ring (8-1), and soft lid (9) has kept off with regard to every thing.Also want to be pointed out that: side opening, purpose are arranged is when spin dryer tube (8) is worked in design on staving (8-2) wall, allows the water on barrel interior clothing " fly out " from these apertures, the very natural simplicity of idea, but because of the existence in these holes, attracted a lot of troubles (above stating), method of thinking is changed in suggestion.
The utility model is exactly to have above shortcoming at spin dryer tube (8), changes structure, redesign, thereby simplified manufacturing technique, shorten manufacture process and production cycle greatly, improved product quality (outward appearance and dynamic and static equilibrium problem), reached the purpose of the inherent quality that has improved washing machine.
Figure one is the two-tub washing machine partial schematic diagram.Figure two is partial schematic diagrams of spin dryer tube parts.Figure three is the sketches that concern between newly-designed soft lid, the newly-designed bucket.Figure four is newly-designed spin dryer tube partial structurtes schematic diagrames.Figure five is newly-designed soft lid structural representations.The force analysis figure of water droplet on bucket wall when figure six is spin dryer tube work.
The technical solution of the utility model: the solid flanging with the spin dryer tube staving substitutes balance ring, spin dryer tube The staving inboard be designed to the structure of certain tapering, sidewall atresia, see figure three. Newly-designed soft lid (901) Cover on the mouth of newly-designed spin dryer tube (801). Like this, dehydration is during some work, water from soft lid (901) and Spin dryer tube is thrown out between (801). The structure of other parts is not changed substantially.
The feasibility study of technical scheme.First problem, when newly-designed spin dryer tube (801) was worked, can water " climb up " spin dryer tube (801) bung and be thrown out of.Obviously, the name of the game is that can water climb to bung.See the force analysis of figure six.Frictional force, the power on the liquid surface (water and plastics are nonwettable) of having ignored water and bucket.Can think that water is subjected to the holding power N and the gravity mg (m is the water droplet quality, and g is an acceleration of gravity) of barrel wall, α is the angle (acute angle) of bucket inwall and gyroaxis.Decomposing N gets N ' and N " two component, can list following two equations like this:
N″＝N·cosα＝mω
2r (1)
N′＝N·sinα (2)
Annotate: 1. ω is the angular speed that bucket changes.
2. r is the radius of gyration of water droplet.
By (1) formula as can be known: N=m ω
2R/cos α (3)
(3) formula substitution (2) formula as can be known:
N′＝mω
2r·tgα (4)
If N '＞mg, then water can up " be climbed ", and substitution (4) formula gets:
ω
2r·tgα＞g (5)
Substantially all about 1300 rev/mins, get acceleration of gravity is 10 Ns/rice to the rotating speed of domestic laundry machine dehydration motor (monophase machine)
2, substitution after these uniform data units (5) formula is got:
Rtg α＞0.54 * 10
-3(rice) (6)
By (6) formula rtg α＞0.54 * 10 as can be known
-3Rice, then water can up " be climbed ".If get r=100mm, then α ≈ is 0.309 °.
Suggestion: in order to make spin dryer tube (801) mould easily manufactured, the bucket madial wall is designed to reverse frustoconic as far as possible, sees figure four.
Second problem, can the bung flange of the spin dryer tube of redesign (801) replace balance ring (8-1).Preamble is stated, and the balance ring inner chamber substantially need not; And dehydration electric motor is supported by elastic system, and during the cycle, this support system just plays one's part to the full the rotation period when needing only spin dryer tube (801) work, reduces the vibration of spin dryer tube (801) less than spring vibration; The maximum radius of spin dryer tube (801) is also smaller; With reference to the history of washing machine, the enamel dehydration barrel of using does not originally have balance ring yet.Obviously, adopt flange to increase the rigidity of bucket, alternative balance ring is fully passable.
From figure one as can be seen, the variation of spin dryer tube (8), the structure of soft lid (9) also will and then become.The soft lid of redesign is seen figure five, and by force analysis as can be known, during spin dryer tube (801) work, clothing also is subjected to the holding power and the frictional force of this barrel wall simultaneously.When clothing one leave barrel wall then holding power disappear, this explanation clothing can not increase too big because of the rotation of spin dryer tube (801) to the active force of soft lid.When that is to say with spin dryer tube (801) dehydration, clothing is not put fullly especially, and during spin dryer tube (801) work, soft lid (901) is not subjected to great power (particularly centre).Owing to the redesign of soft lid (9), the size of frame being covered (3), drip water plate (5) also will be adjusted accordingly again, guarantees that the soft lid (901) of design can cover on the mouth of spin dryer tube (801), shown in figure three.
Also to point out a bit.Carefully calculate discovery through the author: the inwall of spin dryer tube (801) and the angle of gyroaxis increase, and then the tendency toward sliding of clothing strengthens, and also unfavorable to the volume increase of bucket simultaneously, the angle of visible bucket wall and gyroaxis can not be too big.Suggestion is got 2～4 °.
Technique scheme is done three explanations:
1. newly-designed spin dryer tube (seeing figure four) has the reinforcement of vertical direction, to increase rigidity, cancels former staving (8-2) and goes up reinforcement on the circumferencial direction.Can suitably increase spin dryer tube (801) bucket wall thickness and remedy or use instead other material.Such change has improved the manufacturability of goods greatly.
2. the utility model is not done any change to the polycrystalline substance of former staving (8-2).
3. adopt the motor of same rotating speed, under the condition of the same radius of gyration, use newly-designed spin dryer tube (801), the dehydration rate of machine (mechanism) is not produced obvious variation.
Advantage of the present utility model mainly contain following some:
1. cancel balance ring (8-1), reduced two pairs of moulds [going up the mould of ring (8-1-4), following ring (8-1-3)] at least.
2. spin dryer tube (figure four) is simple in structure, and manufacture process has shortened, and technological requirement is simple, and mould need not be loosed core, and the manufacture difficulty of mould has also been reduced, and the production efficiency of goods has improved, and yield rate has also got on, and the materials amount is not significantly increased yet.
3. work simplification, technological process such as no longer need welding, quantitatively fluid injection, seal.
4. use equipment has lacked, the frock clamp that equipment and these operations such as do not re-use welding, fluid injection, seal is required.
5. the equilibrium problem of spin dryer tube (801) is than more secure in the past, and problem of appearance is than former remarkable improvement and secure.
6. improved the quality of product (particularly complete machine).
7. comprehensive above some, economic benefit is just clearly.
Claims (3)
1, the dehydration part of existing drier or Water Extraction Machinery, two-tub washing machine, core texture is a spin dryer tube, and it is made up of balance ring, staving, and a lot of holes are arranged on this staving sidewall, and soft lid is placed in the spin dryer tube, blocks by balance ring.Technical characterictic of the present utility model is: with the bung flanging of staving, replace balance ring, the bucket wall is designed to the structure of band " tapering " and atresia.Soft lid covers on dehydration barrel, and soft lid can hook spin dryer tube.During dehydration, allow water go out from " flying " between spin dryer tube and the soft lid.
2, according to claim 1, its technical characterictic is: spin dryer tube has adopted the solid flanging of bung to substitute balance ring, uses arc transition between flange and the staving.
3, according to claim 1, its technical characterictic is: the bucket wall of spin dryer tube is the structure of no apopore, and does not have the reinforcement on the circumferencial direction.Meet ω during spin dryer tube work
2Rtga＞g, g are acceleration of gravity, and ω is the rotating speed of spin dryer tube, and r is certain radius of gyration of a bit locating on barrel wall, and α is the acute angle that the tangent line at this some place is become with gyroaxis.Each amount all adopts international unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95241073 CN2250368Y (en) | 1995-12-18 | 1995-12-18 | Integrated dehydrating drum without lateral holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95241073 CN2250368Y (en) | 1995-12-18 | 1995-12-18 | Integrated dehydrating drum without lateral holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2250368Y true CN2250368Y (en) | 1997-03-26 |
Family
ID=33882527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95241073 Expired - Fee Related CN2250368Y (en) | 1995-12-18 | 1995-12-18 | Integrated dehydrating drum without lateral holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2250368Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107641939A (en) * | 2017-10-20 | 2018-01-30 | 安徽工程大学 | A kind of water-saving drainage arrangement of automatic washing machine |
| CN108593896A (en) * | 2018-05-04 | 2018-09-28 | 中国水利水电科学研究院 | Fully graded concrete is unstressed strain gauge means and measurement method |
-
1995
- 1995-12-18 CN CN 95241073 patent/CN2250368Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107641939A (en) * | 2017-10-20 | 2018-01-30 | 安徽工程大学 | A kind of water-saving drainage arrangement of automatic washing machine |
| CN108593896A (en) * | 2018-05-04 | 2018-09-28 | 中国水利水电科学研究院 | Fully graded concrete is unstressed strain gauge means and measurement method |
| CN108593896B (en) * | 2018-05-04 | 2019-12-20 | 中国水利水电科学研究院 | Full-graded concrete stress-free strain measuring device and measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |