FRAME AND UNDER CARRIAGE BUILT-UP BODY

PROBLEM TO BE SOLVED: To provide an under carriage for an excavator not requiring any machining. SOLUTION: An under carriage frame for an excavator is so formed that maching operations necessary for bearing an oscillating bearing having a driver's seat or the like and a ring gear are reduced. T...

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Bibliographische Detailangaben
Hauptverfasser:	WARREN M SCHATZ, STACY A ZANDER, JAY J BLETH, GERARD J DUPPONG
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING DREDGING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS FLEXIBLE SHAFTS FOUNDATIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULIC ENGINEERING LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING MECHANICAL ENGINEERING MOTOR VEHICLES PERFORMING OPERATIONS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS SOIL SHIFTING THERMAL INSULATION IN GENERAL TRAILERS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an under carriage for an excavator not requiring any machining. SOLUTION: An under carriage frame for an excavator is so formed that maching operations necessary for bearing an oscillating bearing having a driver's seat or the like and a ring gear are reduced. The frame is made as two separate frame sections 54 and 56 having the peripheral skirts 64, 82 or the like and the top plate 60 so as to form a flat bearing body provided with a base ring of the oscillating bearing and the ring gear. The frame sections have sufficient thinness to bend so as to fit to the base ring of the oscillating bearing, and the machining surface is not required for the oscillating bearing. The frame sections are only welded around the peripheral edges 88 and 90 and the skirts together with them, and the strains of the plates 60 and 76 are substantially eliminated. Then, the plates can be directly fixed to the base ring of the oscillating bearing so as to support them sufficiently with thickness of two plates.