SU1689282A1 - Gripper - Google Patents

Abstract

The invention relates to lifting devices for lifting and transporting machines. The purpose of the invention is to increase reliability. The load grip contains a fork traverse 1, a double-arm lever 3 with a counterweight 8 and with a clamping stop 9, a vertical rod 10 with an element 7 for connection with the hook of the lifting machine. In the initial position, the counterweight 8 is in the lowest position. Zev traverse 1 open. Lead up the grabber under the load and lift it up. When this clamping stop 9 securely locks the load on the traverse. When the load is placed on the stands, the lever 3 is rotated to its original position by the force of the gravity of the counterweight 8. 1 hp f-ly, 1 ill. 7 cl C about 00 about th with N) / j

Description

The invention relates to lifting devices and can be used in construction, including the installation and dismantling of building structures in hard to reach places.

The purpose of the invention is to increase reliability.

The drawing shows a cargo capture, general view.

The load grip contains a forked yoke 1 with a transverse beam 2, double-arm lever 3, pivotally fixed by means of axis 4 on bracket 5 of beam 2. By means of axis b, lever 3 is articulated with element 7 for connection with the hook of the lifting machine, and lever 3 is provided at one end the counterweight 8, on the other, the clamping abutment 9. The rod 10 of the element 7 is placed with the possibility of vertical movement in the cavity of the vertical element 11 rigidly fixed to the beam 2. In addition, the element 7 has an emphasis 12 that limits the movement of the element 7 when interacting ones stop and end of the vertical member 11. In addition, the product of weight with load shoulder 8 on the distance of its center of gravity from the axis 6 must be greater than the product of mass claw traverse a distance between the axes 4 and 6.

Capture works as follows.

A grab attached to the hook of the lifting machine from the driver’s cabin leads to the load to be gripped 13 and is lifted. Under the influence of the load on the fork yoke 1, the lever 3 from the initial position (the counterweight 8 in the lowest position) rotates and fixes the load in the fork yoke 1 with its clamping stop 9. Rotate the lever 3 to realize

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It is located on traverse 1 relative to axis 4. At the same time, element 7 in the cavity of element 11 moves upwards.

The cargo is released when it is installed on supports. In this case, the lever 3 is rotated due to the mass of the counterweight to the initial position.

Claims (2)

1. A cargo grip containing a forked traverse with a transverse beam in the upper part, pivotally connected to the traverse with the possibility of turning a two-arm lever, one shoulder of which is made with an emphasis for cargo, and an element for connecting with a hook of the lifting machine, characterized in that in order to increase reliability, it is provided with a hollow vertical element rigidly attached to the transverse beam, while the element for connection with the hook is hingedly attached by means of about the finger with its lower end to the two shoulders and placed in the cavity of the vertical element with the possibility of longitudinal movement of the rod with a loop to connect with a hook and with an emphasis for interacting with the upper end of the vertical element, while the product of the mass of the second shoulder of the two shoulders by its center to the axis of the horizontal finger exceeds the product of the mass of the crosspiece by the distance from the hinge connecting the latter with the lever to the axis of the said horizontal finger. 2. The grip of claim 1, wherein the second lever arm is provided with a counterweight at its end.