CN1880563A - Axial-shifting noise preventing structure of drum washing machine - Google Patents
Axial-shifting noise preventing structure of drum washing machine Download PDFInfo
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- CN1880563A CN1880563A CN 200510013821 CN200510013821A CN1880563A CN 1880563 A CN1880563 A CN 1880563A CN 200510013821 CN200510013821 CN 200510013821 CN 200510013821 A CN200510013821 A CN 200510013821A CN 1880563 A CN1880563 A CN 1880563A
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- axle
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- washing machine
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- ball bearing
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Abstract
The invention discloses an axial mobile noise preventing structure of barrel washing machine, which is characterized by the following: fixing stator on the back of outer cylinder; connecting rotor and cylinder in the outer case directly; remaining gap between ball bearing and axle to connect in the barrel washing machine directly; setting axial mobile elastic part of cylinder and axle to reduce the rotation of cylinder. The invention reduces noise due to air friction of cylinder and rotary axle along axial movement, which can be applied for barrel washing machine with certain incidence.
Description
Technical field
The invention belongs to a kind of device of roller washing machine, cause that owing to moving axially windage produces the axial-shifting noise preventing structure of the roller washing machine of noise when being specifically related to a kind of rotor rotation of the brshless DC motor that can be reduced in the head roll washing machine.
Background technology
Roller washing machine is that washing agent, washings and washings are put under the state of cylinder inside in general, relies on the driving force swing roller of motor, thus the device that washings is washed.Such roller washing machine has damage to washings and reaches and minimize, and washings is when being difficult for tangle up, has that patting and washes by rubbing with the hands waits the advantage that acts on.
As shown in Figure 1, 2, be provided with the urceolus 3 that to store washings, be provided with the cylinder 9 that can drop into washings in the inboard of urceolus 3 in shell 5 inboards.Be provided with the axle 17 that the driving force of motor can be delivered to cylinder 9 at the rear of cylinder 9.Be respectively equipped with ball bearing 11a, 11b in the front and back of axle 17, be provided with the support of bearing 15 that can support ball bearing 11a, 11b in the rear wall central authorities of urceolus 3.
Rear wall parts at urceolus 3 is fixed with bracing frame 26, and is fixed on the bracing frame 26 by the stator 7 that a plurality of bonded block screws 19 will constitute the direct attachment type motor.
Stator 7 comprises with the lower part: the framework of annular, and twine coil on the groove be arranged on the framework outside.Be provided with the combining of combined hole that stator 7 can be fixed to urceolus 3 rear walls that becomes one with framework and protrude moulding in the framework inboard and use flank.The rearward end of axle 17 be provided with by hold-down screw 18 combinations, together constitute the rotor 8 of direct attachment type motor with stator 7.
At this moment, cylinder 9 directly is connected with rotor 8, and together rotation.Be provided with door 1 in the place ahead of shell 5, between door 1 and urceolus 3, be provided with packing ring 2.
On shell 5, between the peripheral top of inboard and urceolus 3, be provided with the support spring 4 that can support urceolus 3, between the peripheral bottom of the lower inside of shell 5 and urceolus 3, be provided with the shock absorber 10 of the vibration of the urceolus 3 that produces in the time of can alleviating dehydration.
Existing direct attachment type roller washing machine with said structure, when power supply is inserted stator 7, with form electromagnet and by and attached to the interaction between the permanent magnet of rotor 8 inboards, drive rotor 8 rotations, the moment that is delivered to axle 17 will drive cylinder 9 rotations, thereby reach washing and dehydration.
At this moment, direct attachment type roller washing machine of the prior art, and each ball bearing 11a, the 11b of the direct-connected axle 17 of back-up roller 9 and axle 17 between leave the slit.Meanwhile be arranged between the ball bearing 11a of the projection 170 of axle 17 front portions and axle 17 front portions, will be in the slit (p) that axially produces about 0.1mm length.Like this, cylinder 9 and axle 17 along ball bearing 11a, 11b inner slide, and move at axial fore-and-aft direction when cylinder 9 rotation.
If axle 17 with ball bearing 11a, 11b in the ring situation that do not leave the slit be pushed down into, when only leaving axial slit, when cylinder 9 when moving axially, ring will together move with axle 17 in ball bearing 11a, the 11b, will cause the bound all result of inner and outer ring of ball bearing 11a, 11b to take place.That is, the bound effect of bearing that prevents is played in the slit between ring and the axle 17 in ball bearing 11a, the 11b of back shaft 17.But in having the prior art of said structure, the axial slits that exists between ring 110a and the axle 17 in the back shaft 17 anterior ball bearings will cause the generation of following problem:
Because in back shaft 17 anterior ball bearings, have axial slits between ring 110a and the axle 17, when cylinder 9 rotations, cylinder 9 and axle 17 will move in the scope of axial slits size, and this will cause, and ring 110a produces collision in axle 17 and the ball bearing, and then produces friction noise.With reference to the amplification position among Fig. 2 as can be known, during cylinder 9 rotation because the moving axially of cylinder 9 and axle 17, the anterior projection 170 of axle 17 will with ring 110a collision in the anterior ball bearing of axle of ball bearing 11a, and produce friction noise.
Summary of the invention
The present invention proposes for the problem that overcomes the prior art existence, its objective is provide a kind of prevent and the ball bearing of the direct-connected axle of back-up roller in leave in the structure in slit between ring and the axle, when cylinder rotates, the axial-shifting noise preventing structure of the roller washing machine of the friction noise that produces between axle that takes place because of the axial slits of cylinder and axle and the ball bearing
For the attainment of one's purpose, technical scheme of the present invention is: stator is fixed on the urceolus back side, rotor directly is connected in conjunction with axle with the cylinder that is arranged on the urceolus inboard, when connecting power supply to stator, rely on the rotation of rotor, the rotation of drive cylinder, thereby realize the function of washing and dehydration, and in the ball bearing of support and the direct-connected axle of cylinder, leave in the direct attachment type roller washing machine in slit between ring and the axle, in the ball bearing of axle front portion, between the anterior projection of ring and axle, has elastic force along the rotating shaft direction setting of cylinder, the axial-shifting noise preventing structure of the roller washing machine of the cylinder that produces in the time of reducing the cylinder rotation and the axially movable elastomeric element of axle.
Description of drawings
Fig. 1 is the longitdinal cross-section diagram of existing roller washing machine structure;
Fig. 2 is the A part enlarged drawing among Fig. 1;
Fig. 3 is a middle part of the present invention enlarged drawing;
Fig. 4 is that elastomeric element of the present invention is the oblique view of undaform packing ring;
Fig. 5 a is the front view of an alternative embodiment of the invention elastomeric element for the packing ring of distortion;
Fig. 5 b is the side view of an alternative embodiment of the invention elastomeric element for the packing ring of distortion;
Fig. 6 a is the front view of the spring washer of the 3rd embodiment distortion of the present invention;
Fig. 6 b is the side view of the spring washer of the 3rd embodiment distortion of the present invention.
Wherein:
3 urceolus, 6 undaform packing rings
The anterior ball bearing 11b of 11a axle axle rear portion ball bearing
Ring in 17 anterior ball bearings of 110a axle
Protruding p slit, 170 front portions
The specific embodiment
It is following that the present invention is described in detail with reference to drawings and Examples:
As Fig. 3, shown in 4, technical scheme of the present invention is: the back side that stator 7 is fixed on urceolus 3, rotor 8 directly is connected with the combination axle of the cylinder 9 that is arranged on urceolus 3 inboards, when connecting power supply for stator 7, rely on the rotation of rotor 8 to drive cylinder 9 rotations, thereby realize the function of washing and dehydration, and in the ball bearing of support and cylinder 9 direct-connected axles 17, leave in the direct attachment type roller washing machine in slit between ring and the axle 17, in the ball bearing 11a of axle 17 front portions between the anterior projection 170 of ring 110a and axle 17, has elastic force along the rotating shaft direction setting of cylinder 9, the cylinder 9 that produces in the time of can reducing cylinder 9 rotations and the axially movable elastomeric element of axle 17.Elastomeric element is the undaform packing ring 6 of ' S ' shape.
Effect with structure of the present invention is as follows:
Direct attachment type roller washing machine among the present invention also is to form electromagnet when power supply is inserted stator 7, and by and attached to the interaction between the permanent magnet of rotor 8 inboards, drive rotor 8 rotations, the moment that is delivered to axle 17 will drive cylinder 9 rotations, thereby reach washing and dehydration.
At this moment, direct attachment type roller washing machine of the prior art support with each ball bearing 11a, the 11b of the direct-connected axle 17 of cylinder and spools 17 between have the slit.Meanwhile, be arranged between the projection 170 and an anterior ball bearing 11a of axle 17 front portions, will be in the slit (p) that axially produces about 0.1mm length.
Like this, when cylinder 9 and axle 17 move axially in cylinder 9 rotation generations,, and axially moving forward and backward in ball bearing 11a, 11b inner slide.
But, direct attachment type roller washing machine among the present invention, because between the projection 170 of the interior ring 110a of the ball bearing 11a in back shaft 17 the place aheads and axle 17 front portions, be provided with the undaform packing ring 6 that utilizes elastomeric element to make, can prevent in the anterior projection 170 of axle 17 when cylinder 9 rotations and the ball bearing and produce friction noise between the ring 110a.
The i.e. waveform packing ring 6 that between the interior ring 110a of the ball bearing 11a in back shaft 17 the place aheads and axle 17 anterior projectioies 170, is provided with, when being moved owing to the existence of axial slits, to provide opposite force to the anterior projection 170 of ring 110a in the anterior ball bearing and axle 17, thereby prevent the noise that produces because of the friction between two parts.
In addition, though probably be ' S ' waveform packing ring 6 in an embodiment the member of the elastic force that provides as buffering between the wheel 110a in the ball bearing of front portion of the anterior projection 170 of back shaft 17 and axle 17, also can use the packing ring of different therewith distortions or the spring washer of distortion.
Shown in Fig. 5 a, 5b, be the packing ring of another embodiment distortion of elastomeric element of the present invention; Shown in Fig. 6 a, 6b, be the spring washer of the 3rd embodiment distortion of elastomeric element of the present invention.
And, different therewith,, also can constitute the cross section and probably be a bit when radial direction launches in certain of circumferencial direction
The disc spring of oxbow shape, perhaps also can use axially to provide arbitrary elastomeric element of elastic force.
Though be the roller washing machine of level and direct attachment type roller washing machine at cylinder just in an embodiment, the present invention also is applicable to the roller washing machine that cylinder tilts with special angle.
Effect of the present invention is: as mentioned above, the present invention is to have brshless DC motor In the direct attachment type roller washing machine, at the ball axle of support with the direct-connected axle of cylinder Hold staying in the apertured structure between interior ring and the axle, minimizing produces when drum rotating The axial slits of cylinder and axle is its purpose. Have and to prevent from producing between axle and the ball bearing Give birth to the effect of friction noise, thereby improved the reliability of consumer to this product.
Claims (4)
1, a kind of axial-shifting noise preventing structure of roller washing machine comprises: stator is fixed on the urceolus back side, rotor directly is connected in conjunction with axle with the cylinder that is arranged on the urceolus inboard, it is characterized in that: in the ball bearing that supports with the direct-connected axle of cylinder, leave in the direct attachment type roller washing machine in slit between ring and the axle, in the ball bearing of axle front portion ring and spool anterior projection between, have the elastomeric element that causes windage and produce noise that moves axially that elastic force can reduce cylinder and rotating shaft along the rotating shaft direction setting of cylinder.
2, the axial-shifting noise preventing structure of roller washing machine according to claim 1 is characterized in that: elastomeric element is the waveform packing ring.
3, the axial-shifting noise preventing structure of roller washing machine according to claim 1 is characterized in that: elastomeric element is the packing ring of distortion.
4, the axial-shifting noise preventing structure of roller washing machine according to claim 1 is characterized in that: elastomeric element is the spring washer of distortion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013821 CN1880563A (en) | 2005-06-15 | 2005-06-15 | Axial-shifting noise preventing structure of drum washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013821 CN1880563A (en) | 2005-06-15 | 2005-06-15 | Axial-shifting noise preventing structure of drum washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1880563A true CN1880563A (en) | 2006-12-20 |
Family
ID=37518904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510013821 Pending CN1880563A (en) | 2005-06-15 | 2005-06-15 | Axial-shifting noise preventing structure of drum washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1880563A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852955A (en) * | 2012-09-04 | 2013-01-02 | 贝思特宽带通讯(烟台)有限公司 | Wave-shaped washer for radio frequency coaxial connector and using method and use of wave-shaped washer |
| CN104264420A (en) * | 2011-10-24 | 2015-01-07 | Lg电子株式会社 | Washing machine |
| US9512551B2 (en) | 2011-10-24 | 2016-12-06 | Lg Electronics Inc. | Washing machine to produce three-dimensional motion |
| US9605370B2 (en) | 2012-10-09 | 2017-03-28 | Lg Electronics Inc. | Washing machine having dual-drum and assembly method thereof |
-
2005
- 2005-06-15 CN CN 200510013821 patent/CN1880563A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104264420A (en) * | 2011-10-24 | 2015-01-07 | Lg电子株式会社 | Washing machine |
| US9328447B2 (en) | 2011-10-24 | 2016-05-03 | Lg Electronics Inc. | Washing machine to produce three-dimensional motion |
| CN104264420B (en) * | 2011-10-24 | 2016-08-24 | Lg电子株式会社 | Washing machine |
| US9512551B2 (en) | 2011-10-24 | 2016-12-06 | Lg Electronics Inc. | Washing machine to produce three-dimensional motion |
| US9528213B2 (en) | 2011-10-24 | 2016-12-27 | Lg Electronics Inc. | Washing machine to produce three-dimensional motion |
| US9556551B2 (en) | 2011-10-24 | 2017-01-31 | Lg Electronics Inc. | Washing machine to produce three-dimensional motion |
| CN102852955A (en) * | 2012-09-04 | 2013-01-02 | 贝思特宽带通讯(烟台)有限公司 | Wave-shaped washer for radio frequency coaxial connector and using method and use of wave-shaped washer |
| US9605370B2 (en) | 2012-10-09 | 2017-03-28 | Lg Electronics Inc. | Washing machine having dual-drum and assembly method thereof |
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