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Shock absorber, washing machine and clothes dryer

A technology for shock absorbers and washing machines, which is applied to other washing machines, household dryers, washing devices, etc., can solve the problems of poor shock absorption effect of shock absorbers, easy aging of friction plates, and failure of damping of shock absorbers. Reduce the risk of shock absorption failure, reduce the risk of being worn, reduce the effect of rebound force

Active Publication Date: 2016-10-05
QINGDAO HAIER WASHING MASCH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the shock absorber described above has the following problems: the damping effect of the above shock absorber is not good, and the friction plate of the shock absorber is easy to age, and the damping of the shock absorber becomes invalid after the friction plate is aged.
When the aging damping of the friction plate of the shock absorber disappears or is seriously reduced, the washing machine will vibrate greatly when washing clothes. When dehydrating, it will hit the cylinder frequently at the beginning. Sometimes it needs to be balanced dozens of times to find the balance before the dehydration process can be performed. In severe cases, dehydration cannot be performed, which seriously affects the washing and dehydration performance of the washing machine.
[0007] Based on the above description, there is an urgent need for a new damping device to solve the problems of poor damping effect and easy aging of the shock absorber in the prior art

Method used

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  • Shock absorber, washing machine and clothes dryer
  • Shock absorber, washing machine and clothes dryer
  • Shock absorber, washing machine and clothes dryer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The drum washing machine provided by this solution includes at least one shock absorber, the shock absorber is located between the casing and the outer cylinder of the washing machine, and the two ends of the shock absorber are respectively connected with the casing and the outer cylinder. ,

[0043] Specifically, such as figure 2As shown, the shock absorber mainly includes a damping guide sleeve 11 and a first friction sliding device 15 . One end of the sleeve 11 is provided with an opening, and the other end is a fixed end 111, and the fixed end 111 of the sleeve 11 is connected with the outer cylinder of the washing machine. The first friction sliding device 15 includes a first plunger 151, one end of the first plunger 151 is a fixed end 152, and the first plunger 151 is connected to the casing of the washing machine through the fixed end 152. The other end of the first plunger 151 can be inserted into the sleeve 11 through the opening of the sleeve 11 and can sli...

Embodiment 2

[0057] The difference from Embodiment 1 is that in this embodiment, if image 3 As shown, the sleeve 11 is divided into a first part of the sleeve and a second part of the sleeve, the second plunger 13 is located in the second part of the sleeve, and the friction plate 16 is located in the first part of the sleeve. The inner diameters of the first part of the sleeve and the second part of the sleeve are different, the inner diameter of the first part of the sleeve is d1, the inner diameter of the second part of the sleeve is d2, and the inner diameter of the first part of the sleeve is smaller than the inner diameter of the second part of the sleeve. Other than that, this embodiment is the same as the first embodiment, and will not be repeated here.

[0058] In this embodiment, the support member 12 can be deformed, but it is preferably a pre-compressed deformed support member 12, which can better absorb shock energy storage.

[0059] In this embodiment, since the inner diame...

Embodiment 3

[0063] Such as Figure 4 As shown, the same as the first embodiment, the sleeve 21 provided by this embodiment is fixed on the washing machine outer cylinder through the fixed end 211, the first plunger 251 is fixed on the washing machine box through the fixed end 252 at the end, and the sleeve 21 A friction plate 26 is provided at the opening. However, the difference between this embodiment and the first embodiment is that in this embodiment, both the support member 22 and the second friction sliding device are sleeved on the outside of the sleeve 21, and the second friction sliding device is a friction Ring 23. The first frictional sliding device 25 further includes an outer sleeve 253 disposed around the outer circumference of the first plunger 251 , the outer sleeve 253 is located outside the sleeve 21 and along the first plunger 251 . The inner wall of the sleeve 21 is in contact with the friction ring 23 when sliding to the inner side.

[0064] Preferably, there is a ...

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Abstract

The invention relates to the field of household appliance, in particular to a shock absorber and a washing machine. The shock absorber comprises a sleeve with an opening in one end and a first plunger. One end of the first plunger is fixed, and the other end of the first plunger is inserted into the sleeve from the opening. The first plunger can slide along the sleeve. A friction plate in friction fit with the first plunger is arranged between the first plunger and the sleeve. The sleeve is provided with an elastic part and a second friction slide device which is connected with the elastic part and can slide relative to the sleeve in a friction manner. When the movement, relative to the sleeve, of the first plunger exceeds are preset position, the first plunger is abutted against the second friction slide device and compresses the elastic part. By the structure, the shock absorber is good in shock absorption performance, long in service life and capable of lowering the risk of shock absorption failure caused by large friction.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a shock absorber, a washing machine and a clothes dryer. Background technique [0002] From the point of view of the entire washing process of the washing machine, vibrations are generated in all stages of washing, rinsing, and dehydration. The rotation speed of the inner tub of the washing machine is from 0 to 1460r / min, that is, the rotation frequency changes from 0-25Hz. During the rotation of the inner tub, due to the uneven distribution of laundry, two forces in the vibration system are formed. One is the partial load that causes the outer The cylinder moves up and down; the centrifugal force causes the outer cylinder to shake from side to side. [0003] In order to solve the above problems, a shock absorber is provided between the washing machine box and the outer cylinder in the prior art. The shock absorber can absorb and eliminate vibration, prevent crawling, and red...

Claims

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Application Information

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IPC IPC(8): D06F37/20D06F58/04
Inventor 许升赵志强吕艳芬彭秀文
Owner QINGDAO HAIER WASHING MASCH CO LTD
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