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

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.

Description

TECHNICAL FIELD[0001]The present invention relates to the field of excavators or loaders, and in particular, to a 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.BACKGROUND[0002]The rocker arms of commonly used equipment such as heading machines or coal mining machines or loading machines, for example, the rocker arms of reciprocating impact heading machines or the rocker arms of reciprocating impact coal mining machines or the rolling harrow support rocker arms of rolling-harrow loading machines, all stretch and retract relative to the machine bodies by means of sliding friction, resulting in high sliding friction resistance and strong twisting force. In order to improve work efficiency and applicability, the work heads of the heading machine, the coal mining machine, the loading machine and the like are d...

AI Technical Summary

Benefits of technology

[0067]23. The rotary disk is configured as a multilayer rotary disk which comprises a lower-layer rotary disk, an upper-layer rotary disk; the rolling harrow rocker arm is disposed on the lower-layer rotary disk; the reciprocating impact head rocker arm is disposed on the upper-layer rotary disk; the lower-layer rotary disk drives the rolling harrow rocker arm to rotate vertically and/or horizontally; the upper-layer rotary disk drives the reciprocating impact head rocker arm to rotate vertically and/or horizontally; and the rolling harrow rocker arm coordinates with the reciprocating impact head rock

Problems solved by technology

The work heads having large volume and great height produce great twisting gravity and serious reciprocating wear onto the telescopic sliding guide rail; moreover, in operation, crawling jitters are easy to occur, and in serious cases, bonding burn may appear in the sliding friction surface.

The most critical thing is that the adjustment to the movement fails because it is difficult to form a uniform lubricating it film on the friction surface thereof to generate heat by friction owing to the particularity of working environment.

However, service efficien

Images