The lifting of columns weighing up to 15 g can be carried out by a rigid capture (developed by the design institute Promstalconstral construction), which is adopted for two, a stroller of a stroller of a stroller of a strip of an eye with holes, which is 0.5-1 mm larger than a diameter of the capture of the capture of the capture. The capture consists of an eye made of steel 6 = 20 mm and reinforced with four ribs with a pharynx corresponding to the size of the dick of the lifting device. The eye is welded to the axis 2, at the ends of which the holes are drilled for fixation using shplints 3 fixing rings 4. Two cheeks 5 are installed on the axis, which are in pairs cooked with ring gaskets 6 (6 = 50-60 mm and an internal hole of 81 mm). At the other end of the cheek, have holes in accordance with the diameter of the pin 7 and the device for pulling the pin 8. The presence of two hinges facilitates the translation of the column from the horizontal position to the vertical. The upset is carried out by pulling the pin with the help of the cord and the subsequent lifting of the dedication of the lifting mechanism for the output of the cheeks. When slinging crane beams, a semi -automatic sling can also be used. The sling is carried out in two ways: by covering the beam with a sling; by connecting the sling with the crane beam through the bracket fixed in the holes for fastening the crane rails. For lifting, trunks and strengthening of rafter farms with lanterns and without them, a special universal tubular traverse is used, equipped with a semi -automatic sling, which allows to produce upbringing from the ground. The traverse with a crane is superimposed on the farm, and captures are brought up and fixed to the corresponding belts-farms and lantern (if there is a lantern) and fixed with stoppers and levers the position of captures under the upper belt of the farm. Extensions of the racks of the traverse to the line passing through the bottom of the support nodes of the farm are put forward. Using a crane, a farm is rotated around the supporting parts of the extension cords, lifting and installing it in a design position.
Universal sling: what is
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