Method for rolling friction stretching and retracting of rocker and rolling friction stretching and retracting digger or loader of rocker

Abstract

The invention belongs to the field of digging, loading and the like, and particularly relates to a method for rolling friction stretching and retracting of a rocker and a rolling friction stretching and retracting digger or loader of the rocker. The rolling friction stretching and retracting digger or loader of the rocker comprises the rocker, a machine body, a rolling body, a stretching and retracting control part, a working head, a driving mechanism of the working head and the like, wherein the rocker comprises a stretching and retracting arm, a supporting arm for stretching and retracting and the like, the rolling body is arranged between the stretching and retracting arm and the supporting arm for stretching and retracting, one end of the stretching and retracting control part is connected with the machine body, the other end of the stretching and retracting control part is connected with the stretching and retracting arm, the rocker is connected with the machine body, the stretching and retracting control part controls the stretching and retracting arm to stretch and retract, the stretching and retracting arm moves in a rolling friction mode through the rolling body, the working head is arranged on the stretching and retracting arm, the driving mechanism of the working head drives the working head to perform digging or loading, the machine body comprises a walking mechanism, and the walking machine drives the whole machine to walk.

Description

technical field [0001] The invention belongs to the field of excavation and loading, and in particular relates to a rolling friction telescopic method of a rocker arm and a rocker arm rolling friction telescopic excavator or loader. Background technique [0002] Excavation and loading equipment such as roadheader, coal shearer, loader, etc. that are widely used at present, according to the needs of the work, the working head is a movable structure. For example, the rocker arm of the reciprocating impact roadheader is a retractable structure, the rocker arm of the reciprocating impact shearer is a liftable structure that needs to be adjusted and moved, and the rocker arm of the roller harrow loader needs to move back and forth in order to rake the material, etc. The above equipment The telescopic movement of the working parts relative to the fuselage is sliding friction, the sliding friction resistance is large, and the breaking force is large. In order to improve work effici...

AI Technical Summary

Problems solved by technology

For example, the rocker arm of the reciprocating impact roadheader is a retractable structure, the rocker arm of the reciprocating impact shearer is a liftable structure, that is, it needs to be adjusted and moved, and the roller support rocker arm of the roller harrow loader needs to move back and forth in order to rake the material, etc. The above equipment The telescopic movement of the working parts relative to the fuselage is sliding friction, the sliding friction resistance is large, and the breaking force is large. In order to improve work efficiency and applicability, the working heads of roadheaders, coal shearers, and loaders are made large. , Heavy weight, heavy weight and bulky working head against the sliding telescopic guide rail due to its heavy gravity and heavy reciprocating wear, it is prone to crawling and shaking during work, and in serious cases, the sliding friction surface will be bonded and burnt. The most critical thing is due to the working environment. Particularity It is not easy to form a uniform lubricating oil film on the friction surface, which will cause friction to generate heat and cause the movement adjustment to fail

In order to avoid the failure of the rocker arm telescopic sliding friction, many manufacturers do not use the telescopic rocker arm. If the rocker arm is not allowed to move telescopically relative to the fuselage, the use efficiency and adaptability will be seriously reduced. In order to reduce the sliding friction resistance, shortening the slideway will cause Short telescoping distance of the rocker arm, small mining and / or loading and reclaiming range, poor adaptability, low work efficiency, etc.

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