| 摘要 |
FIELD: mechanics. ^ SUBSTANCE: proposed external support of lifting-and-conveying machine comprises horizontal guide mounted on the latter and incorporating telescoping beam fitted in the said guide to turn about its lengthwise axis. Aforesaid beam incorporates hydraulic jack and second guide. The guides have cylindrical axial cavities with their walls accommodating retainers. Aforesaid beam is supplemented with the second telescoping beam, both representing hollow structures with two guide channels made in their outer surfaces. The guide channel pouter surface represents a part of cylinder with lengthwise axis aligned with that of the seam to form, with aforesaid inner surfaces of cylindrical axial cavities, a telescoping joint. Note that, on the side of aforesaid surfaces, grooves are made their start representing a lengthwise groove receiving retainer pin, changing over into helical groove that makes a quarter of a turn. Note also that aforesaid groove end represents the second lengthwise groove. The cylindrical axial cavities of the guides and telescoping beams accommodate beams drive representing hydraulic cylinders with their one end fastened to the guide, and their second end coupled with telescoping beam. ^ EFFECT: higher efficiency and reliability. ^ 2 dwg |
