SU1533987A1 - Grab - Google Patents

Abstract

The invention relates to a lifting and transport machinery, in particular, to grabs for loading coarse or cylindrical loads. The purpose of the invention is to increase reliability in operation. The grapple consists of gripping jaws 1, installed using axes of rotation 2 in the bearing housing 3, and mechanism 4 for rational movement of jaws when scooping, which includes a power hydraulic cylinder 5 driving the gripping jaws 1, synchronous rotation mechanism 6 and load springs 7. Mechanism 6 is made in Tie 8, hinged to the gripping jaws x 1 so that it ensures their simultaneous rotation. The mechanism 4 is made in the form of a body 9 formed by parallel planes with spacer fingers 11. 5 Il.

Description

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Claims (1)

Claim A grab containing a supporting body, eyes for connecting it to a lifting machine, gripping jaws articulated on the body, and a hydraulic cylinder for driving the jaws, characterized in that, in order to increase reliability in operation, it is equipped with two plates mounted in fixed from the outside of the bearing housing of the guides with the possibility of vertical movement relative to the latter, by rods connecting these plates, a cross member installed in the lower part of the bearing housing, clamping hydraulic cylinders, the whisker of each of which is mounted vertically on each of the said rods, and the rod ..... on the said cross-bar, and load springs * each, each of which is placed between the cross-section of the bearing housing and the housing of the corresponding hydraulic cylinder and covers its rod. A