RU1795194C - Gripping mechanism - Google Patents

Abstract

SUMMARY OF THE INVENTION: Soderkhft mechanism two identical rope clamps. Each clamp is made in the form of blocks interconnected to each other with grooves for placing between them two segments of the rope and the working rope. The pads are pivotally connected to the rods and restrictive elements. The restrictive elements are connected to one end of two pairs of two-link levers motionless in the circumferential direction. The other ends of said levers are pivotally connected to an opposing rope clamp. The restrictive elements are made in the form of threaded rods connected to threaded rods. 4 ill.

Description

The invention relates to lifting and conversion engineering and may find application in various traction devices, for example, in manual winch winches (xx

A gripping mechanism is known that comprises a rope clamp made in the form of blocks with grooves reversed to each other to accommodate two segments of the rope between them, as well as rods pivotally connected to the blocks with restrictive $ 1 elements located symmetrically to the plane of the segments the rope.

In the case of using the clamp in the lifting winch, the working rope quickly deteriorates due to its constant tension on the restrictive elements during the non-working moment of the clamp, when the pads are open and the working rope is pulled through this clamp with the second same clamp.

The purpose of the invention is to reduce wear of the working rope when used in a lever winch.

This goal is achieved due to the fact that the gripping mechanism comprising a rope clamp made in the form of interlocking blocks with grooves to accommodate two segments of the rope between them, as well as rods pivotally connected to the blocks with restrictive elements located symmetrically to the plane of the segments The rope is equipped with an additional rope clamp, identical to the main one and located coaxially with it, and two pairs of two-link levers, one ends of which are connected to the limiting elements cients fixedly in the circumferential direction, and the other ends pivotally connected to the other rope clip, wherein the limiting members are in the form of threaded rods connected with connecting rods is threaded.

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On Fig, 1 presents a gripping mechanism built into the lever manual winch; in Fig.2 - section aa in Fig.1; FIG. 3 is a section BB in FIG. 1; in FIG. 4 - section bb in FIG. 2.

The gripping mechanism contains two cable clamps 1 and 2. Each cable clamp 1.2 has two pads 3 and 4 with grooves, in which there are pieces of rope 5, two peers of t 6 and 7, pivotally connected to pads 3 and 4, a spring device 8, on the one hand mounted on the plate 9, and on the other on the rods 6, as well as the lever 10. The clamps are equipped with restrictive elements 11, rigidly mounted on the rods 7, restrictive elements in the form of threaded rods 12 connected to the rods 6 threaded connection, and a pair of two-link levers 13 located on both Torons pads. Some ends of the levers 13 are fixedly connected to the restrictive elements 12, and the other ends are provided with elements 14 for pivotally connected to the plate 9 of the adjacent clamp 1, 2. The restrictive elements 11 are fixedly mounted on the rods 7 with a gap relative to the working cable 16.

Both clamps 1 and 2 are mounted movably in the housing (not shown in the drawing) and are connected through plates 9 of clamps 1 and 2 to a control lever.

The device operates as follows.

When the control lever 17 is turned to the left at the initial moment of the clamp rod 6 and 7

rotate around the lower hinges to the right, and at the clip 2 to the left.

In the clamp 1 under the action of the spring device 8, acting on the pads

3, 4, the segments of the rope 5 are already in contact with the working rope b, and if the rod 6, 7 is deflected, the working rope 16 is clamped with pads 3, 4 with great effort. The restrictive elements 11, 12 prevent slipping

working rope 16 from the segments of the rope 5 under the action of the compressive load created by the pads 3.4.

In clamp 2, when turning t g 6, 7 pads 3, 4 flow rate tf, overcoming the action

the spring device 8, and the working cable 16 is released.

With a further rotation of the control lever 17 to the left, the clamps 1, 2 move towards each other and the two shoulders

levers 13 rotate the restrictive elements 12, giving them translational movement. The restrictive elements 12 of the clamp 1 approach the working rope 16 and are pressed to it, and the restrictive

the elements 12 of the clamp 15 extend away from the working rope 16, without preventing its free movement.

When you turn the control lever 17 to the left of the pads 3, 4 of clamp 1, the flow rate is

the clamps 2 converge, the direction of rotation of the limiting elements 12 changes in a similar way. With the further movement of the control lever 17, the blocks 3, 4 move apart. Now feed the working rope 16

implements clamp 2.

Claims (1)

SUMMARY OF THE INVENTION A gripping mechanism comprising a rope clamp made in the form of blocks interlocking with each other with grooves for accommodating two pieces of rope between them, and also pivotally coupled to the blocks of a rod with restrictive elements located symmetrically with respect to the plane of arrangement of the rope segments characterized in that, in order to reduce the wear of the working rope when used in a lever winch, it is equipped with an additional rope clamp identical to the main one and located coaxially with him, and two pairs of two-link levers, one ends of which are connected to the restrictive elements motionless in the circumferential direction, and the other ends are pivotally connected to another cable clamp, while the restrictive elements are made in the form of threaded rods connected to the rods by thread.