SU1299952A1

SU1299952A1 - Crane telescopic boom

Info

Publication number: SU1299952A1
Application number: SU843866604A
Authority: SU
Inventors: Алексей Дмитриевич Шахов
Priority date: 1984-11-11
Filing date: 1984-11-11
Publication date: 1987-03-30

Abstract

Изобретение относитс к подъемно- транспортному машиностроению.. Цель изобретени - повышение надежности телескопической стрелы. Секции I и 2 стрелы образованы балками 3 и 4, выполненными в виде швеллеров. Полки 6 и 7 балок 3 и 4 выпо-л- нены переменной ширины, что уменьшает материалое.мкость стрелы и повышает ее надежность. 2 ил. 3 (9 сл ГчЭ со со со СП 1чЭThe invention relates to lifting and transport machinery. The purpose of the invention is to increase the reliability of the telescopic boom. Section I and 2 arrows are formed by beams 3 and 4, made in the form of channels. Shelves 6 and 7 of beams 3 and 4 are made of variable width, which reduces the material. Boom capacity and increases its reliability. 2 Il. 3 (9 cl HCHE with with so with SP 1chE

Description

Изобретение относитс к подъемно-транспортному машиностроению, а именно к телескопическим стрелам кранов.FIELD OF THE INVENTION The invention relates to a lifting and transport machinery, in particular to telescopic boom cranes.

Цель изобретени - повышение надежности стрелы.The purpose of the invention is to increase the reliability of the boom.

На фиг. 1 изображена стрела крана, об- ший вид; на фиг. 2 - разрез А-А на фиг. 1.FIG. 1 shows the crane boom, a general view; in fig. 2 shows section A-A in FIG. one.

Телескопическа стрела крана содержит корневую секцию 1 и выдвижную секцию 2,The telescopic boom of the crane contains the root section 1 and the extendable section 2,

образованные балками 3 и 4 коробчатогоformed by beams 3 and 4 box

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сечени . Опорный кронштейн 5 дл св зи с section. Support bracket 5 for communication with

механизмом подъема стрелы установлен на секции 1 под балкой 4 в средней ее части. Балки 3 и 4 выполнены в виде швеллеров, причем балка 4 надета на балку 3 и жестко соединены друг с другом. Швеллеры балок 3 и 4 корневой секции 1 выполнены с шириной полок 6, уменьшающейс от места креплени на ней опорного кронштейна 5 к ее концам. Швеллеры балок 3 и 4 секции 2 выполнены с шириной полок 7, уменьшающейс от ее основани к концу.boom lifting mechanism is installed on section 1 under beam 4 in the middle part. Beams 3 and 4 are made in the form of channels, and the beam 4 is worn on the beam 3 and rigidly connected to each other. Channels of beams 3 and 4 of the root section 1 are made with the width of the shelves 6, decreasing from the attachment point of the support bracket 5 thereto to its ends. Channels of beams 3 and 4 of section 2 are made with a shelf width of 7, decreasing from its base to the end.

Предлагаема телескопическа стрела крана выполнена из балок в виде швеллеров и позвол ет снизить массу за счет переменThe proposed telescopic boom of the crane is made of beams in the form of channels and allows you to reduce weight due to changes

7- 7-

НОИ ширины полок, что повышает надежность стрелы.NOI width shelves, which increases the reliability of the boom.

Claims

Invention Formula

Telescopic crane boom containing the root and at least one pull-out section formed by box-section beams, the side walls of which are made in the form of channels, and a support bracket for kinematic communication with the boom lifting mechanism fixed under the boom root section in its middle part, characterized in that, in order to increase reliability, the upper and lower walls of the boom sections of the boom are made in the form of channels, worn on the side wall channels and rigidly connected to the latter, The neva section is made with the width of the shelves, decreasing from the point of attachment of the support bracket on it to its ends, and the channel bars of the pull-out section — with the width of the shelves decreasing from its base to its end.

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