CN101492876B - Dynamic shock-absorbing device for drum washing machine - Google Patents
Dynamic shock-absorbing device for drum washing machine Download PDFInfo
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- CN101492876B CN101492876B CN2009100257058A CN200910025705A CN101492876B CN 101492876 B CN101492876 B CN 101492876B CN 2009100257058 A CN2009100257058 A CN 2009100257058A CN 200910025705 A CN200910025705 A CN 200910025705A CN 101492876 B CN101492876 B CN 101492876B
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Abstract
The invention discloses a dynamic vibration absorption device for a tumbling-cylinder washing machine, comprising balancing weights and dynamic vibration absorbers, two balancing weights are respectively arranged at left and right sides of the outer drum of the tumbling-cylinder washing machine, two dynamic vibration absorbers for absorbing the vibration of the tumbling-cylinder washing machine are respectively arranged at the balancing weights at left and right sides. The dynamic vibration absorbers are used for transferring the energy of a vibration system and absorbing the vibration of the tumbling-cylinder washing machine. The dynamic vibration absorber comprises a vibrator, springs, an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate are arranged on the balancing weights, both ends of the vibrator are provided with springs, the vibrator is mounted on the upper cover plate and the lower cover plate via the springs arranged at the two ends. The invention is in no need of the balancing weights with large mass, can effectively control the vibration amount of the entire drum and absorb the vibration of the washing machine. The invention is adapted to a variety of tumbling-cylinder washing machines.
Description
Technical field
The present invention relates to a kind of shock absorber of roller washing machine, specifically a kind of dynamic shock absorber that utilizes resonance absorbing principle and design.
Background technology
In general, washing machine is to utilize the effect of washings and washing agent and by washing, cleaning, dehydration, drying and other steps, removes the device of the dirt that is stained with in the washings such as the clothes that holds in the cylinder, pillow.
The mode of washing of existing tumbling-box washing machine is: after washings, washing agent, water are put into cylinder, during the cylinder left rotation and right rotation, lifter in the tube up drags washings, falls under the effect of gravity simultaneously, relies on the impulsive force that produces that washings is cleaned.The drum-type drying washing machine includes: the housing 21 that forms the washing machine outward appearance; Be provided with urceolus 22 in the inside of housing 21, in urceolus 22, be provided with rotatable and be used for the cylinder 23 of washing clothes; In cylinder 23, be provided with the lifter (LIFTER) 24 that is used for promoting washings; The motor 25 of rotary drum 23 when washing, dehydration; Be used for discharging the drainage arrangement 26 of the washings that cylinder 23 holds to the outside; To the drying unit 27 that washing clothes is dried, see Fig. 1.
Washing machine is in washing and dehydration, because the gravity of washings can make cylinder lay particular stress on phenomenon in the cylinder, causes the collision of cylinder and urceolus, thereby damages urceolus and cylinder.For guaranteeing that washing machine is in the equilbrium position in washing and dehydration supervisor, prevent the phenomenon that causes urceolus and cylinder to damage owing to laying particular stress on, existing roller washing machine mainly is to utilize the mode that increases balancing weight to reduce the vibratory output of washing machine drum body, on washing machine drum body, increase such as cement, the balancing weight that materials such as cast iron are made is used for the imbalance of balancing drum washing machine at running.See Fig. 2, balancing weight 10 is arranged on the washing machine urceolus 101, and balancing weight 10 is and the suitable circular arc of urceolus shape that balancing weight 10 is fixed on the urceolus by screw, mainly relies on the gravity of balancing weight to make washing machine be in the equilbrium position.The vibratory output that uses the balancing weight mode to reduce washing machine drum body mainly is to utilize the quiet inertia of balancing weight to suppress the dynamic unbalance problem of whole washing machine staving in operation process.Very little for what vibratory output was controlled, need the very big balancing weight of quality.The shortcoming of this device is: 1, owing to be provided with the big balancing weight of quality, cause cylinder weight very big, easily injure urceolus, poor stability when falling; It is big to produce noise when 2, washing machine moves; 3, owing to increased counterweight block structure, cause washing machine overall price height.
Summary of the invention
In order to overcome the problem that prior art exists, the purpose of this invention is to provide a kind of roller washing machine dynamic shock absorber, this shock absorber utilization resonance absorbing principle designs, do not need the very big balancing weight of quality, and can design and control at the different speeds of service of washing machine, can control the vibratory output of whole staving effectively, reduce the vibration of washing machine.
The objective of the invention is to be achieved through the following technical solutions:
A kind of dynamic shock-absorbing device for drum washing machine, it is characterized in that: it comprises balancing weight and dynamic shock absorber, two balancing weights are separately positioned on the left and right sides of external cylinder of drum-type washing machine, and two dynamic shock absorbers that are used for reducing the laundry drum machine vibration are separately positioned on the balancing weight of the left and right sides.
Among the present invention, dynamic shock absorber is used for shifting the energy of vibrational system, reduces the vibration of roller washing machine.Described dynamic shock absorber comprises oscillator, spring, upper cover plate and lower cover, and upper cover plate and lower cover are arranged on the balancing weight, is equipped with spring at the two ends of oscillator, and oscillator is installed on upper cover plate and the lower cover by the spring that two ends are provided with.Wherein, described oscillator two ends are provided with installation shaft, and oscillator is installed between upper cover plate and the lower cover by the spring that two ends are sleeved on the installation shaft.The spring lower end of oscillator upside is sleeved on the oscillator upper end, and the upper end is connected on the upper cover plate; The spring upper end of oscillator downside is sleeved on the oscillator lower end, and the lower end is connected on the lower cover.
For reaching best effectiveness in vibration suppression, described oscillator is cylindric, is provided with one group of cannelure on the cylinder of oscillator, is provided with piston ring in cannelure.Piston ring can reduce friction, guarantees the oscillator long-term work, makes effectiveness in vibration suppression better.Except cylindric, the shape of oscillator can be varied, is connected in series as strip or by a plurality of spheroids, is the candied haws on a stick shape.
Can be provided with sleeve in the oscillator outside, an end of sleeve is fixed on the upper cover plate, and the other end is fixed on the lower cover.Sleeve plays a protective role to oscillator, spring and piston ring.
When washing machine operated in specific rotation speeds, dynamic shock absorber was in resonance state, and the oscillator high vibration is used for the imbalance of balance staving, reduces the vibratory output of whole staving.
The present invention utilizes resonance absorbing principle to make dynamic shock absorber, and the vibration of staving is transferred on the oscillator.Dynamic shock absorber plays the dynamic absorber effect to the whole washing machine, and so-called dynamic absorber reduces vibration by means of the energy that shifts vibrational system exactly.Be the intrinsic frequency of dynamic shock absorber when consistent, can reduce the vibratory output of cylinder, reduce noise with the vibration of washing machine frequency.
Compared with prior art, behind the working power shock absorber, can design and control, can control the vibratory output of whole staving effectively, reduce the vibration of washing machine at the different speeds of service of washing machine.The present invention does not need to increase balancing weight weight, and can control at the different speeds of service of washing machine, can control the vibratory output of whole staving effectively, reduces the vibration of washing machine, eliminates the noise of washing machine.
Description of drawings
Fig. 1 is the structural representation of existing roller washing machine;
Fig. 2 is the structural representation of damping device in the existing roller washing machine;
Fig. 3 is a structural representation of the present invention.
The specific embodiment
A kind of dynamic shock-absorbing device for drum washing machine of the present invention, comprise balancing weight 1 and dynamic shock absorber 3, about two balancing weights 1 be separately positioned on the left and right sides of external cylinder of drum-type washing machine 2, two dynamic shock absorbers 3 that are used for reducing the laundry drum machine vibration are separately positioned on the balancing weight 1 of the left and right sides.
Dynamic shock absorber 3 is used for shifting the energy of vibrational system, reduces the vibration of roller washing machine.Dynamic shock absorber 3 comprises oscillator 31, spring 32, upper cover plate 33 and lower cover 34, and upper cover plate 33 and lower cover 34 are arranged on the balancing weight 1.Two ends up and down at oscillator 31 are equipped with spring 32, and oscillator 31 is installed on upper cover plate 33 and the lower cover 34 by the spring 32 that two ends are provided with.Wherein, spring 32 lower ends of oscillator 31 upsides are sleeved on oscillator 31 upper ends, and the upper end is connected on the upper cover plate 33; Spring 32 upper ends of oscillator 31 downsides are sleeved on oscillator 31 lower ends, and the lower end is connected on the lower cover 34.
For reaching best effectiveness in vibration suppression, oscillator 31 is cylindric, is provided with one group of cannelure on the cylinder of oscillator 31, is provided with piston ring 35 in cannelure.Piston ring 35 can reduce friction and by the noise of its generation, make effectiveness in vibration suppression better.The quantity and the cannelure of piston ring 35 are suitable.Cannelure and piston ring 35 are four in the present embodiment.The material of oscillator 31 can come as required to determine, be generally metal material.
Design has sleeve 36 in balancing weight 1 outside.36 pairs of oscillators 31 of sleeve, spring 32 and piston ring 35 play a protective role, and seal the noise that oscillator 31 vibrations produce simultaneously.The upper end of sleeve 36 is fixed on the upper cover plate 33, and the lower end of sleeve 36 is fixed on the lower cover 34.
Among the present invention, the quality of balancing weight 1 does not need very big, and the effect of balancing weight 1 is to be used for installing dynamic shock absorber 3, and the vibratory output of washing machine drum body is not only to utilize balancing weight 1 to realize, utilizes dynamic shock absorber 3 more effective reduction to vibrate.
During the washing machine operation, dynamic shock absorber 3 is in resonance state, and the intrinsic frequency of dynamic shock absorber 3 is consistent with the vibration of washing machine frequency, oscillator 31 high vibrations, the whole washing machine is played the dynamic absorber effect, can control the vibratory output of whole staving effectively, reduce the vibration of washing machine.The present invention can control at the different speeds of service of washing machine, reduces the vibration of washing machine, eliminates the noise of washing machine.
Claims (1)
1. dynamic shock-absorbing device for drum washing machine, it is characterized in that: it comprises balancing weight (1) and dynamic shock absorber (3), two balancing weights (1) are separately positioned on the left and right sides of external cylinder of drum-type washing machine (2), and two dynamic shock absorbers (3) that are used for reducing the laundry drum machine vibration are separately positioned on the balancing weight (1) of the left and right sides; Described dynamic shock absorber (3) comprises oscillator (31), spring (32), upper cover plate (33) and lower cover (34), upper cover plate (33) and lower cover (34) are arranged on the balancing weight (1), be equipped with spring (32) at the two ends of oscillator (31), oscillator (31) is installed between upper cover plate (33) and the lower cover (34) by the spring (32) that two ends are provided with; Described oscillator (31) is cylindric, is provided with one group of cannelure on the cylinder of oscillator (31), is provided with piston ring (35) in cannelure; Described oscillator (31) two ends are provided with installation shaft, and oscillator (31) is installed between upper cover plate (33) and the lower cover (34) by the spring (32) that two ends are sleeved on the installation shaft; Be provided with sleeve (36) in oscillator (31) outside, an end of sleeve (36) is fixed on the upper cover plate (33), and the other end is fixed on the lower cover (34); Described oscillator (31) is a strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100257058A CN101492876B (en) | 2009-03-06 | 2009-03-06 | Dynamic shock-absorbing device for drum washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100257058A CN101492876B (en) | 2009-03-06 | 2009-03-06 | Dynamic shock-absorbing device for drum washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101492876A CN101492876A (en) | 2009-07-29 |
| CN101492876B true CN101492876B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100257058A Expired - Fee Related CN101492876B (en) | 2009-03-06 | 2009-03-06 | Dynamic shock-absorbing device for drum washing machine |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798742A (en) * | 2010-03-02 | 2010-08-11 | 南京乐金熊猫电器有限公司 | Power shock-absorbing device and washing machine provided with same |
| CN106637791B (en) * | 2016-11-29 | 2023-04-07 | 无锡小天鹅电器有限公司 | Pulsator washing machine |
| CN107385781A (en) * | 2017-07-27 | 2017-11-24 | 巢湖市荣达塑业有限公司 | A kind of preparation method of the washing machine counter weight of noise reduction damping |
| CN110387676B (en) * | 2018-04-19 | 2022-12-27 | 青岛海尔洗涤电器有限公司 | Drum washing machine with damping balancing weight |
| CN110387677B (en) * | 2018-04-19 | 2023-04-18 | 青岛海尔智能技术研发有限公司 | Drum type washing machine and damping device thereof |
| CN110846854A (en) * | 2019-11-18 | 2020-02-28 | 珠海格力电器股份有限公司 | Vibration damper and washing machine |
| CN112899999B (en) * | 2021-01-11 | 2021-12-14 | 珠海格力电器股份有限公司 | Drum type washing machine washing drum assembly and drum type washing machine |
| WO2023185273A1 (en) * | 2022-03-31 | 2023-10-05 | 青岛海尔洗涤电器有限公司 | Laundry treatment device with active noise reduction, and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485324Y (en) * | 2000-10-19 | 2002-04-10 | 海尔集团公司 | Washing machine with vibration absorber |
| CN200974915Y (en) * | 2006-05-29 | 2007-11-14 | 海尔集团公司 | Mounting structure for barrel washing machine counter weight block |
| CN101314906A (en) * | 2007-05-29 | 2008-12-03 | Lg电子株式会社 | Dynamic vibration absorber |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH063241B2 (en) * | 1986-08-21 | 1994-01-12 | 工業技術院長 | Dynamic vibration absorber with shock response suppression function |
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2009
- 2009-03-06 CN CN2009100257058A patent/CN101492876B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485324Y (en) * | 2000-10-19 | 2002-04-10 | 海尔集团公司 | Washing machine with vibration absorber |
| CN200974915Y (en) * | 2006-05-29 | 2007-11-14 | 海尔集团公司 | Mounting structure for barrel washing machine counter weight block |
| CN101314906A (en) * | 2007-05-29 | 2008-12-03 | Lg电子株式会社 | Dynamic vibration absorber |
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| CN101492876A (en) | 2009-07-29 |
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Granted publication date: 20110928 Termination date: 20190306 |