Antivibration supporting apparatus

A supporting device and anti-vibration technology, which is applied to shock absorbers, shock absorber-spring combinations, springs, etc., can solve problems such as difficult to improve ride comfort and insufficient vibration absorption, so as to improve hydraulic pressure and prevent gas Cavitation and improved vibration resistance

Inactive Publication Date: 2007-10-10
FUKOKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the vibration absorption by the elastic body cannot be sufficiently improved, and it is difficult to improve ride comfort

Method used

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Examples

Experimental program
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Embodiment Construction

[0053] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0054] As shown in FIG. 1 , a vehicle body 11 of a hydraulic shovel 10 , which is a construction machine, has a lower movable body 12 , and a rotary table 13 is rotatably attached to the lower movable body 12 . The lower moving body 12 is a track-type lower moving body having a rail vehicle 15 suspended on sprockets 14 , and may be a crawler-type lower moving body using crawlers or a wheel-type lower moving body using wheels. The boom 16 is mounted on the turntable 13 so that it can swing freely up and down. The arm 17 is mounted on the front end of the boom 16 so that it can swing freely up and down. An oil cylinder 19 a is provided between the turntable 13 and the boom 16 in order to swing the boom 16 up and down. In order to swing the arm 17 in the up and down direction, an oil cylinder 19b is provided between the arm 17 and the boom 16 . In additio...

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PUM

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Abstract

An automatic transmission consisting of a planetary gear unit comprising in combination an input shaft (1 ), an input gear (2), a key planet gear (3), an output gear (4), an output shaft (5), a bearing planet gear (6), a rotating frame (7), a rotor (8), wherein the planet shaft is the rotor (8) having a certain inertia moment, so its revolving is equivalent to the precession of a gyroscope due to an external force wherein the precession-production external force is the load acting on the output shaft (5). Hence the revolutionary speed of the rotor (8) varies depending upon changes in the output load and the same holds true for the rotational speed of the output shaft (5), which makes the speed ratio spontaneously vary with changes in the outpot load. Accordingly, the transmission of the present invention operates at speed ratios spontaneously varying with changes in load, without any controlling operation.

Description

technical field [0001] The present invention relates to an anti-vibration support device capable of supporting a load between parts while preventing transmission of vibration between the parts. Background technique [0002] Work vehicles used in civil engineering construction work, that is, construction machinery include hydraulic excavators, hydraulic cranes, bulldozers, wheel loaders, large excavators, shovel loaders, dump trucks, and the like. Such a construction machine includes a vehicle body provided with a lower moving body, a cab (driver's cab) called a cab shell mounted on the vehicle body, and attachments for work attached to the vehicle body. The lower moving body may be a crawler type using crawlers, a rail type using rail vehicles, or a wheel type using wheels. For example, in a hydraulic excavator, the car body includes a lower moving body and a rotating table rotatably arranged on the lower moving body, the front attachment is installed on the rotating table,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F13/00
CPCF16F13/20
Inventor 田中龙雄葛川光雄
Owner FUKOKU CO LTD
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