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Controlled oscillation damper

A technology of control device and vibration damping system, which is applied in the direction of inertia effect damper and so on

Inactive Publication Date: 2012-09-12
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The hitherto known oscillation dampers have in common that their mass-spring systems act effectively only in their limited frequency range

Method used

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  • Controlled oscillation damper
  • Controlled oscillation damper
  • Controlled oscillation damper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] As mentioned above, figure 1 Housing oscillation 100 of electric tool 1 is shown. figure 1 Also shown by way of example are two sinusoidal oscillations 103 , 104 , the superposition of which results in housing oscillation 100 . For example, the first sinusoidal oscillation 103 of the two sinusoidal oscillations is carried out by the first mass 51 of the damping system 2 according to the invention, and the second sinusoidal oscillation 104 of the two sinusoidal oscillations is performed by the first mass 51 of the damping system 2 according to the present invention. The second mass 52 of the inventive damping system 2 performs. Housing oscillations 100 can thus be compensated for.

[0051] figure 2 A power tool 1 with a vibration damping system 2 according to the invention is expediently shown.

[0052] A hammer drill is shown here as an electric tool 1 , for example, which includes a hammer mechanism assembly 3 . Hammer mechanism assembly 3 is the vibration source...

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Abstract

The invention relates to an oscillation reduction system (2) for an electric tool (1), comprising a first substance (51) that is arranged on an elastic element (6, 61, 62), wherein the first substance (51) is provided for reducing housing oscillations (100) for a relative motion with respect to a housing (13) of the electric tool (1). The oscillation reduction system (2) comprises a second substance (52), and the second substance (52) can be driven depending on the relative motion of the first substance (51) with respect to the housing (13). The invention further relates to an electric tool (1) comprising an oscillation reduction system (2) according to the invention.

Description

technical field [0001] The invention relates to a vibration damping system for an electric tool, the vibration damping system has a first mass, the first mass is arranged on an elastic body, wherein the first mass is arranged for reducing vibration of the housing relative to the The housing of the power tool moves relative to each other, wherein the damping system includes a second mass. The invention also relates to an electric tool with the vibration damping system according to the invention. Background technique [0002] The topic of vibrations in power tools, especially hammer drills and impact hammers, is becoming more and more important due to the coming into force of regulatory requirements that relate the permissible daily workload when using power tools to the body load acting on the operator. important. [0003] During percussion drilling and chiseling with a hammer machine, the greatest body load on the user results from the housing oscillations produced by the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/10
CPCF16F7/10
Inventor W·布劳恩
Owner ROBERT BOSCH GMBH