Vibration-isolating mount device

A technology of anti-vibration installation and vibration acceleration, applied in the direction of shock absorber, shock absorber-spring combination, spring, etc., can solve the problems of inability to absorb the top load, reduce the durability of the cab, and residual vibration, etc., and achieve good Anti-vibration effect, effect of improving durability

Inactive Publication Date: 2007-05-16
SHIN CATERPILLAR MITSUBISHI LTD CORP
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  • Abstract
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Problems solved by technology

[0004] However, in the above-mentioned conventional anti-vibration installation device, for example, in order to quickly attenuate the residual vibration generated after the impact such as the top load is applied, the gap (damping hole) between the damping plate and the housing is reduced. , the initial uplift load when impact is applied cannot be absorbed, and as a result, a large force acts on the side of the cab floor member, which may reduce the durability of the cab, etc.
On the other hand, if the gap (orifice) is increased, there is a problem that residual vibration remains for a long time

Method used

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Embodiment Construction

[0030] One embodiment of the anti-vibration mounting device of the present invention will be described with reference to the drawings.

[0031] In FIG. 3 , 1 denotes a hydraulic excavator as a working machine. This hydraulic excavator 1 has a crawler-type undercarriage 2 , and a swivel frame 3 as a substantially plate-shaped mounting base member to be able to go up and down through a swivel bearing portion 4 . It is provided on the undercarriage 2 so as to rotate around an axis (not shown) in the direction. In addition, the body 7 is constituted by the undercarriage 2 , the swivel bearing 4 , and the swivel frame 3 .

[0032] Further, on the swivel frame 3 of the machine body 7, a working device 5 for performing excavation work is provided, and a power unit 6 including an engine, a hydraulic pump driven by the engine, and the like is provided. As shown in FIGS. 1 and 2 , a substantially plate-shaped cab floor member 9 of the cab 8 is provided on the swivel frame 3 via a plura...

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PUM

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Abstract

The invention provides a vibration-isolating mount device capable of absorbing initial push-up load caused by impact and capable of quickly attenuating residual vibration after the impact. The vibration-isolating mount device (10) has a case body (11) fixed to a rotating frame (3), and mount rubber (14) is fixed to the case body (11). Magnetic viscous fluid (16) whose viscosity is varied by a magnetic field is sealed in a sealed chamber (15) in the case (11). A movable body (21) supported on the mount rubber (14) has a damper plate (23) moving in the sealed chamber (15) while receiving resistance from the magnetic viscous fluid (16). A viscosity variable control means (32) varies the viscosity of the magnetic viscous fluid (16) by forming a magnetic field depending on vibrational acceleration from an acceleration detecting means (31).

Description

technical field [0001] The invention relates to an anti-vibration installation device, which can absorb the initial jacking load based on the impact, and can attenuate the residual vibration generated after the impact as soon as possible. Background technique [0002] In the past, anti-vibration mounting devices such as viscous mounting are known, which have: a housing mounted on an installation base member such as a truck frame; an elastic body mounted on the housing; an enclosing chamber formed in the housing; Attenuating fluid such as silicone oil sealed in the enclosed chamber; a damper plate that moves in the enclosed chamber by the resistance from the attenuating fluid, supported by elastic bodies, and a movable body that is equipped with a cab floor member; formed on the outer periphery of the damper plate A gap (orifice) between the housing and the inner periphery of the housing (for example, refer to Patent Document 1). [0003] Patent Document 1 Japanese Patent Ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F13/30
CPCF16F13/30F16F13/26
Inventor 吉野和宪
Owner SHIN CATERPILLAR MITSUBISHI LTD CORP
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