SU1323518A1

SU1323518A1 - Overhead travelling crane span beam

Info

Publication number: SU1323518A1
Application number: SU853976960A
Authority: SU
Inventors: Николай Григорьевич Братусь; Валерий Анатольевич Каскевич; Юрий Павлович Копылец; Николай Иванович Козяйчев; Виктор Степанович Резников; Леонид Васильевич Титаренко
Original assignee: Днепропетровский инженерно-строительный институт
Priority date: 1985-11-14
Filing date: 1985-11-14
Publication date: 1987-07-15

Abstract

Изобретение относитс к области подъемно-транспортного машиностроени . Цель изобретени - повышение эксплуатационной надежности. Пролетна балка 3 содержит крайние 7 и среднюю 8 секции. Кажда секци состоит из верхнего и нижнего по сов и промежуточного элемента 5, соедин ющего указанные по са. Верхний по с в средней секции 8 выполнен закрытого профил , а верхние по са крайних секций 7 - открытого. Площадь поперечного сечени верхнего по са уменьшаетс от середины пролетной балки к ее концам. 1 з.п. ф-лы, 5 ил. фцг. /The invention relates to the field of lifting and transport machinery. The purpose of the invention is to increase operational reliability. The span beam 3 contains extreme 7 and middle 8 sections. Each section consists of an upper and lower strip and an intermediate element 5 connecting the above mentioned ones. The upper c in the middle section 8 is made of a closed profile, and the upper section on the extreme sections 7 is open. The cross-sectional area of the upper track decreases from the middle of the span beam to its ends. 1 hp f-ly, 5 ill. fzg /

Description

с на нижний по с 4, промежуточ элемент 5 и верхний по с 6. Гор тальна жесткость пролетной бал обеспечиваетс за счет подкосо а также за счет увеличени раз верхнего по са и промежуточног мента к середине пролета.from the bottom to the bottom with 4, the intermediate element 5 and the upper along with the 6. The rigidity of the flying ball is ensured by the bracing as well as by increasing the times of the top flight and the intermediate to the middle of the span.

Благодар малой жесткости н чение открытого профил пролет балки 3 в зоне примыкани к ко балкам 1 при передвижении кран пут м с неровност ми обеспечив равномерное загружение ходовых крана: и узлов сопр жени пролеDue to the low rigidity, the opening of the open profile of the span of the beam 3 in the area adjacent to the beams 1 when moving the valve through irregularities ensured uniform loading of the crane:

Изобретение относитс к подъемно- транспортному машиностроению, а именно к мостовым кранам с монорельсовой тележкой.The invention relates to a lifting machinery industry, namely to bridge cranes with a monorail bogie.

Цель изобретени - повышение экс- 5 плуатационной надежности.The purpose of the invention is to increase operational reliability.

На фиг.1 изображена пролетна балка крана мостового типа, вид сверху; на фиг.2 - то же, вид сбоку; на фиг.З - сечение А-А на фиг.2; на 10 фиг.4 - сечение Б-Б на фиг.2; на фиг.З - сечение В-В на фиг.2.Figure 1 shows the flying beam of the crane bridge type, top view; figure 2 is the same, side view; on fig.Z - section aa in figure 2; 10 figure 4 - section bb in figure 2; on fig.Z - section bb In figure 2.

Кран мостового типа содержит концевые балки 1, подкосы 2 и пролетную балку 3. Пролетна балка 3 состо- t5 балки 3 с концевыми балками 1. ит из нижнего по са 4„ промежуточного элемента 5 и верхнего по са 6, причем ширина верхнего по са 6 и высота промежуточного элемента 5 уменьшаютс от середины к концам пролетной 20 балки. В верхней части пролетной балки 3, на длине между.подкосами 2, промежуточньш элемент 5 или верхний по с 6 выполнены замкнутого профил , а в зоне примыкани к концевым балкам 1 промежуточннй элемент 5 и верхний по с 6 вьшолнены открытого профил . Пролетна бгшка содержит Крайние 7 и среднюю 8 секции.The bridge-type crane contains end beams 1, struts 2 and a span beam 3. The span beam 3 consists of t5 beams 3 with end beams 1. it is from the lower sa 4 "intermediate element 5 and the upper sa 6, and the width of the upper sa 6 and the height of the intermediate element 5 decreases from the middle to the ends of the span beam 20. In the upper part of the passage beam 3, on the length between the sub-struts 2, the intermediate element 5 or the upper along with 6 is made of a closed profile, and in the area adjacent to the end beams 1 the intermediate member 5 and the upper along with 6 are filled with the open profile. The flyway contains the Extreme 7 and the middle 8 sections.

Работа пролетной балки заключаетс 30 в следующем. The operation of the span beam is 30 as follows.

Концевые балки 1 ззоспринимают нагрузку от монорельсовой тележки через пролетную балку 3. Нагрузка отThe end beams 1 of the load take the load from the monorail trolley through the span beam 3. The load from

Claims

1. The flybar of a crane of the new type, containing the extreme and sections consisting of the connected intermediate element and the lower part, the first ones in the middle section of the

25 of the covered profile, I differ from the fact that, in order to increase the operational reliability, the profiles are also made in the extreme sections.

2. The strut according to claim 1, characterized in that the c is made with a variable cross section along its cross-sectional area decreasing from the middle of the tr.

wheels of a monorail trolley transmits 35 beams to its ends.

from the lower to the c 4, the intermediate element 5 and the upper to the c 6. The horizontal rigidity of the beam 3 is provided by the braces 2, as well as by increasing the dimensions of the upper beam and the intermediate element to the middle of the span.

Due to the low torsional stiffness of the open profile of the flying beam 3 in the zone adjacent to the end beams 1, when the crane is moved along unevenness, uniform loading of the traveling wheels of the crane:

beams 3 with end beams 1.

Invention Formula

1. The flying beam of a bridge-type crane, containing extreme and middle sections consisting of upper and lower lanes connected by means of an intermediate element, the first of which is made of a closed profile in the middle section, in order to increase operational reliability, The upper sections of the extreme sections are made open profile.

2. A flying beam according to claim 1, characterized in that the top over c is made with its cross-sectional area variable in length, decreasing from the middle of the span

four

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FIG. 2

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four.