Washing machine vibration reducing assembly and washing machine

Abstract

The invention discloses a washing machine vibration reducing assembly which comprises a suspension rod base, a suspension rod, a damping ring, a sleeve part and a bottom cover. The suspension rod is sleeved with the damping ring, the damping ring can slide vertically and comprises an upper damping ring, elastic rubber and a lower damping ring, the upper damping ring and the lower damping ring areconnected through a fastener to form a hollow cavity, and the elastic rubber is located in the hollow cavity. By adopting the washing machine vibration reducing assembly, shake and swing of the suspension rod in the front-back and left-right directions can be effectively decreased, the damping ring can vertically slide on the suspension rod and can also play a certain friction damping effect, thevibration in the vertical direction is reduced, accordingly shake of the suspension rod in different directions is prevented, and noise is reduced, so that the washing machine is kept in quiet and stable dehydration starting and operating modes. The damping ring is simple in structure, and production and manufacturing are facilitated.

Description

technical field [0001] The invention belongs to the field of washing machines, and in particular relates to a vibration damping assembly of a washing machine and a washing machine. Background technique [0002] When the washing machine starts dehydration and dehydration operation, due to the eccentric load and centrifugal force of the washing items, the dehydration tub of the washing machine will inevitably shake and resonate during the dehydration rotation operation, and the outer tub will shake or swing with the start of the motor, forming large If the vibration and resonance cannot be eliminated well, the machine will jump, hit the washing machine cabinet or touch the safety switch of the washing machine and cannot work normally. On the suspension seat of the outer tub, when the fully automatic washing machine starts dehydration and dehydration operation, the outer tub will shake or sway with the start of the motor, forming greater vibration and noise, and the suspension ...

AI Technical Summary

Problems solved by technology

Pure friction damping + damping The spring-type damping assembly uses a nylon slider or other rubber material to generate friction with the suspension rod in the middle to absorb vibration. The damping assembly of this structure has a simple structure and low cost. However, the friction force is relatively fixed, and the greater the friction force, the faster the wear between materials will cause the vibration damping component to fail quickly. The vibration damping component combined with friction damping and air damping is composed of a plastic sleeve and a rubber piston. Vibration is absorbed by the friction generated by the movement between the piston and the nylon sleeve and the damping generated by the air discharge. This structure will generate noise due to the compressed discharge and suction of the air. Therefore, the vibration damping component of this structure is noisy, and this structure is harmful to The air seal is not good and can not achieve high ideal vibration absorption performance

However, none of the above damping components can effectively prevent the shaking of the outer tub in the front, back, left, and right directions when the washing machine is running under a large partial load for dehydration.

[0004] Chinese patent CN102767066A discloses a vibration damping assembly for a washing machine, including an upper ball seat, a boom, a lower ball seat, a spring, a bushing, and a bottom bracket. The upper and lower ends of the sleeve are respectively connected to the lower ball seat and the bottom bracket to form a closed chamber. , the lower end of the spring in the closed chamber is also provided with a sliding block set on the suspender, and the outer side of the sliding block is provided with a buffer sleeve, the buffer sleeve and the sleeve are interference fit, and the inner wall of the sleeve is coated with damping grease. The effect of vibration reduction and noise reduction in the long-term process, but the damping grease is not conducive to use at high temperatures, there are requirements for the use temperature, and can only reduce the vibration of the outer tub of the washing machine in the up and down direction, and reduce the vibration effect of the washing machine in the front, rear, left, and right directions poor

[0005] The boom assembly is an important damping part of the washing machine. In the prior art, most of the spring booms are used, or damping structures are added to the spring parts. This reduces the vibration of the outer tub in the up and down direction, and cannot reduce the vibration of the outer tub in the front, rear, left, and right directions. vibration

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