SU914472A1 - Hoisting device - Google Patents

Description

The invention relates to lifting devices, in particular to devices for lifting long products such as columns of different sections.

A lifting device is known, which contains a yoke and a gripping body suspended on it on flexible lines, having a frame with clamping elements, each of which includes a fixed wedge fixed to the frame and a movable wedge interacting with the latter, a spring-loaded bar with stops and a control lever movably mounted on the frame [one].

However, the known device is not convenient enough in operation.

The purpose of the invention is improving the usability.

This goal is achieved by the fact that each clamping element is provided with two rods connected with a spring-loaded rod, one of

tions hinged on the frame, which is made in the form of a bracket, and the other on the control lever, while the control lever is installed in a hole made in the frame and

4 wedges are pivotally connected to the wedges by means of fixed axles and are made with a longitudinal groove for one of said fixed axes, and the thrust, hinged on the frame, is made with a longitudinal groove in which a finger is attached to the frame.

In addition, the stops of the spring-loaded rods are made in a stepped form.

This embodiment of the device increases its convenience in operation,

FIG. 1 shows the device in front, general view; in fig. 2-node I in FIG. 1 in working position; in fig. The 3 ”node I in FIG. 1 in the off position; in fig. B is a section A-A in FIG.

four

3 914472

Lifting device includes flexible slings 1 with a cargo ring 2 and a gripping body 3, yoke 4 with stops 5. for fixing it on the upper end of the load (columns). The 5-wadded organ 3 has movable 6 and fixed 7 wedges, on which the control lever 10 mounted in the hole is fixed by means of fixed axles 8 and 9, ”0 made in the frame and wedges and made with longitudinal groove 11 for the axis 9 and holes 12. At the end of the control lever 10, a flexible cable 13 is fixed for remote control.

The frame of the device is made in the form of a bracket 14, and fixed wedges are fixed on it 7- Spring-loaded rods 15 have stepped stops 16, 20

interconnected by an axis 17 and by means of two rods 18 are movably mounted on a bracket 14, while one of the rods 18 has a longitudinal groove 19 in which a finger attached to the bracket 14 is placed, and the other rod is hinged on the control lever 10, moreover, to adjust the device to different dimensions of the load being lifted, one of the rods 18 can be fixed to various openings 12 on the lever 10 and, moreover, provided with a stop 20 for transmitting movement from the lever 10 to the rods 15.

The device works as follows ³⁵

in a way.

On the upper part of the column lying set the yoke 4, up to its stops 5, and the middle part of the column is wrapped around the gripping body 3 with ⁴⁰ spring-loaded rods 15 with stops 16 retracted to the extreme position, using control levers 10 that transmit the movement to the thrusters 18 with stops 20, produce orientation of the column ⁴⁵ spring-loaded rods 15 with stepped stops 16 relative to the gripping body 3 and the preload of the movable wedges.

6 (figure 2). Next, cargo slings 1 50 with a cargo ring 2 connected with a lifting device raise the bracket 14 with a fixed wedge 7, in this case the final clamping occurs with movable wedges 6 of the COLUMN. 55 Then the column is installed on, the place of its installation and open the gripping body 3. For this purpose, a cable 13

The control levers 10 move (FIG. 3) while the wedges 6 release the column, and through the rods 18 pull the spring-loaded rods 15 with stepped stops 16, lift the gripping body 3. The gripping body when 'lifting, pushes the yoke from the top. columns. Then the cycle repeats. For lifting the column of a different cross section, two shoulders levers 18 are fastened to other openings 12 on the control levers 10, for this purpose y. <E is intended also for the stepped design of the stops 16.

The proposed design of the lifting device is convenient in operation due to a more accurate orientation of the lifted load relative to the gripping body.

Claims (2)

Claim 1. A lifting device containing a traverse and a gripping body suspended on it on flexible lines, having a frame with clamping elements, each of which includes a fixed wedge fixed to the frame and a movable wedge interacting with the latter, a spring-loaded bar with stops and a control lever movably mounted on the frame It is distinguished by the fact that, in order to increase the ease of operation, each clamping element is equipped with two rods connected with a spring-loaded rod, one of which is pivotally attached to the frame, which is made in the form of a clamp and the other on the control lever, while the control lever is installed in a hole made in the frame and wedges, is pivotally connected to the wedges by means of fixed axles and Φ is made with a longitudinal groove for one of the said fixed axes, and the thrust is hinged on frame> made with a longitudinal groove in which is placed a finger attached to the frame. . '2. The device according to claim 1, 1 and 2, which is based on the fact that the stops of the spring-loaded rods are made in a stepped form.