Shock absorber

A shock absorber and protrusion technology, applied in the field of vibration reduction, can solve the problems of easy shaking, limited contact area, and limited shear force, so as to improve the high-speed speed of the fan blade and reduce the risk of detachment Possibility, effect of increasing contact area

Active Publication Date: 2015-11-25
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increase of the axial thickness, the overall size of the insert also increases, and the use in small space is limited.
Generally, small and thin inserts often design the radial rubber layer thickness to be thinner (generally, the radial thickness is 4-5mm), but the vibration isolation requirements cannot be met.
To meet the vibration isolation requirements, the thickness of the radial rubber layer must be increased, and the structural reliability cannot be satisfied.
The contact area between the rubber layer of the existing insert and the inner and outer jackets is limited, the shear force that can withstand is limited, the reliability cannot be satisfied, and it is easy to shake under the action of torque

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as figure 1 with figure 2 As shown, as a possible implementation mode, a plurality of first protrusions 110 are evenly provided on the outer surface of the inner sleeve 100, and a plurality of first protrusions 110 are arranged on the inner surface of the middle layer 200 one by one. Corresponding to the second groove 210 , the first protrusion 110 is embedded in the second groove 210 . In this way, the contact area between the inner sleeve 100 and the middle layer 200 is increased, and when the shock absorber is subjected to torque during operation, the possibility of the inner sleeve 100 being separated from the middle layer 200 is reduced, and the shock absorber’s bearing capacity is improved. The ability of the wind blade to rotate at a high speed improves the reliability of the shock absorber.

[0055] Of course, the first protrusion 110 provided on the outer surface of the inner sleeve 100 can also be an annular boss concentrically arranged on the outer pe...

Embodiment 2

[0058] Such as image 3 with Figure 4 As shown, a plurality of first grooves 120 are uniformly arranged on the outer surface of the inner sleeve 100, and a plurality of second protrusions 220 corresponding to the first grooves 120 are arranged on the inner surface of the middle layer 200, The second protrusion 220 is embedded in the first groove 120 . In this way, the contact area between the inner sleeve 100 and the middle layer 200 is increased, and when the shock absorber is subjected to torque during operation, the possibility of the inner sleeve 100 being separated from the middle layer 200 is reduced, and the shock absorber’s bearing capacity is improved. The ability of the wind blade to rotate at a high speed improves the reliability of the shock absorber.

[0059] Of course, the first groove 120 provided on the outer surface of the inner sleeve 100 can also be an annular groove concentrically arranged on the outer periphery of the inner sleeve 100. At this time, the...

Embodiment 3

[0062] Such as Figure 5 with Image 6 As shown, as a further improvement, a plurality of first protrusions 110 are evenly provided on the outer surface of the inner sleeve 100, and a plurality of first protrusions 110 corresponding to the first protrusions 110 are arranged on the inner surface of the middle layer 200. The second groove 210 , the first protrusion 110 is embedded in the second groove 210 . In this way, the contact area between the inner sleeve 100 and the middle layer 200 is increased, and when the shock absorber is subjected to torque during operation, the possibility of the inner sleeve 100 being separated from the middle layer 200 is reduced, and the shock absorber’s bearing capacity is improved. The ability of the wind blade to rotate at a high speed improves the reliability of the shock absorber.

[0063] Of course, the first protrusion 110 provided on the outer surface of the inner sleeve 100 can also be an annular boss concentrically arranged on the ou...

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PUM

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Abstract

The invention provides a shock absorber. The shock absorber comprises an inner sleeve, a middle layer and an outer sleeve. First protrusion portions or first grooves are arranged on or formed in the outer side face of the inner sleeve. Second grooves matched with the first protrusion portions or second protrusion portions matched with the first grooves are formed in or arranged on the inner side face of the middle layer. The inner sleeve, the middle layer and the outer sleeve are arranged concentrically from inside to outside in sequence. According to the shock absorber, the protrusion portions or the grooves are arranged on or formed in the outer side face of the inner sleeve, and the grooves or and the protrusions are formed in or arranged on the inner layer face of the middle layer correspondingly, so that the contact area between the inner sleeve and the middle layer is increased, and the probability of separation of the inner sleeve and the middle layer when the shock absorber is subjected to turning moment during running is reduced; the capacity of the shock absorber to bear a high rotation speed o fan blades is improved, the stability of the shock absorber under the action of twisting moment, turning moment and axial force is improved, and therefore the reliability of the shock absorber is improved.

Description

technical field [0001] The invention relates to the technical field of vibration reduction, in particular to a vibration absorber. Background technique [0002] The shock absorber (insert) composed of metal and rubber is a kind of rubber shock absorber. This kind of parts combines the high damping characteristics of rubber materials and the high stiffness characteristics of metal materials to solve the characteristics that ordinary materials are difficult to meet. The fan blade inserts used in air conditioners have also gradually developed from a single metal insert to a metal and rubber composite vibration isolation insert. This type of insert takes advantage of the high damping properties of rubber materials and the high stiffness of metal materials. Used to eliminate motor commutation noise problems. [0003] In order to solve the problem of the reliability of the insert structure, it is usually to increase the axial thickness of the insert. After increasing the thicknes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/00
CPCF16F7/00
Inventor 夏增强高旭高智强林麟程诗刘江驰
Owner GREE ELECTRIC APPLIANCES INC
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