METHOD FOR ARRANGING ROLLING-FRICTION STRETCHING AND RETRACTION BASED ROLLING STROKE SECTIONS OF A ROCKER ARM IN PARALLEL, AND AN EXCAVATOR OR LOADER COMPRISING A ROCKER ARM HAVING ROLLING STROKE SECTIONS ARRANGED IN PARALLEL
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United States of America Patent
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Issued Date -
Nov 5, 2015
app pub date -
Nov 26, 2013
filing date -
Nov 26, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An excavator or loader comprises a rocker arm, a machine body, and a work head, wherein the rocker arm comprises a front roller, a rear roller, a front roller raceway, a rear roller raceway, a telescopic arm, a telescopic support arm; the front roller raceway and the rear roller raceway are arranged in parallel; the front roller rolls within the front roller raceway; the rear roller rolls within the rear roller raceway; the front roller coordinates with the rear roller to support the telescopic arm to perform the rolling-friction stretching and retraction on the telescopic support arm by means of rolling friction; the work head is connected with the telescopic arm which drives the work head to stretch or retract; the telescopic support arm is connected with the machine body, according to a method for arranging rolling-friction stretch and retraction based rolling stroke sections of a rocker arm in parallel.
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