SU1328434A1

SU1328434A1 - Suspension

Info

Publication number: SU1328434A1
Application number: SU864015714A
Authority: SU
Inventors: Георгий Митрофанович Сорока; Сергей Леонидович Олейник
Original assignee: Производственное Объединение "Ждановтяжмаш"
Priority date: 1986-02-03
Filing date: 1986-02-03
Publication date: 1987-08-07

Abstract

Изобретение относитс к рабочему оборудованию экскаваторов и перегружателей . Цель - уменьшение габаритов подвески и снижение ее металлоемкости . Подвеска включает основание 7 и установленные на нем барабан (Б) 3 и гидроцилиндр (ГЦ) 1I. Установлены они на ос х 8 и I2 соответственно с возможностью их качани вокруг осей их креплени . К Б 3 эксцентрично присоединен шарниром 9 шток 10 ГЦ II. При нормальной работе происходит выт жка канатов полиспаста , разность которой компенсируетс небольшим поворотом Б 3 вокруг оси 8. При этом шток 10 медпенно смещаетс вдоль ГЦ 11 на незначительную величину и ГЦ -1 1 несколько поворачиваетс вокруг оси 12. При обрыве каната одного из полиспастов Б. 3 поворачиваетс с ускорением, перемещает шток 10 с поршнем и поворачивает ГЦ 1I вокруг оси 12. 5 шт. А- повернуто о (Л : ND 00 4 СдЭ Фие.гThe invention relates to working equipment for excavators and material handlers. The goal is to reduce the size of the suspension and reduce its metal consumption. Suspension includes base 7 and drum (B) 3 mounted on it and hydraulic cylinder (HZ) 1I. They are installed on axles 8 and I2, respectively, with the possibility of their swing around the axes of their attachment. By B 3 eccentrically connected by a hinge 9 rod 10 HZ II. During normal operation, the hoist ropes are pulled out, the difference of which is compensated by a slight turn of B 3 around the axis 8. At the same time, the rod 10 is displaced by an insignificant amount along HZ 11 by a small amount and HZ -1 1 rotates around the axis 12 somewhat. 3 turns with acceleration, moves the piston rod 10 with the piston and turns HZ 1I around the axis 12. 5 pcs. A- rotated about (L: ND 00 4 Cde E Fi.g

Description

Изобретение относитс к рабочему борудованию экскаваторов и перегруателей , в частности к подвескам трел.The invention relates to the working equipment of excavators and reloading machines, in particular to trills.

Цель изобретени - уменьшение габаитов подвески и снижение ее металлоемкости .The purpose of the invention is to reduce the gabaite of the suspension and reduce its metal intensity.

На фиг.1 изображена подвеска, обий вид; на фиг.2 - сечение А-А на фиг.1; на фиг.З - вид Б на фиг.2; на фиг.4 - вид В на фиг.З (места креплени канатов на барабане); на фиг.З - подвеска в крайнем положении после обрыва одного из канатов.Figure 1 shows the suspension, obiy view; figure 2 - section aa in figure 1; on fig.Z - view B in figure 2; Fig. 4 is a view B of Fig. 3 (ropes attachment points on the drum); on fig.Z - suspension in the extreme position after the breakage of one of the ropes.

Подвеска, например, стрелы перегружател включает канатные полиспасты 1, одни концы канатов которых, закреплены на лебедках 2, а другие - подход т к барабану 3 и креп тс при помощи сегментов 4, вспомогательных клиньев 5 и зажимов 6. Барабан 3 установлен на основании 7 посредством оси 8. К барабану эксцентрично присоединен при помощи шарнира 9 шток 10 с поршнем гидроцилиндра 11. Гидроцилиндр 11 смонтирован на основании 7 посредством оси 12. Рабочие полости гидроцилиндра 11 соединены между собой каналом 13 с дросселем 14. Основание 7 крепитс к надстройке 15 машины посредством горизонтальной оси 16 и вертикальной оси 17. Лебедки 2 св заны между собой кинематически.The suspension, for example, reloading jibs includes rope tackles 1, one ends of the ropes of which are fixed on winches 2, and others come to drum 3 and are fixed with segments 4, auxiliary wedges 5 and clamps 6. Drum 3 is mounted on base 7 via axis 8. The drum 10 with the piston of the hydraulic cylinder 11 is eccentrically connected to the drum by means of a hinge 9. The hydraulic cylinder 11 is mounted on the base 7 by means of the axis 12. The working cavities of the hydraulic cylinder 11 are interconnected by a channel 13 with a throttle 14. The base 7 is attached to the superstructure yke 15 of the machine through the horizontal axis 16 and the vertical axis 17. The winches 2 are interconnected kinematically.

Подвеска работает следующим образом .Suspension works as follows.

При нормальной работе происходит выт жка канатов полиспатов, разность которой кo meнcиpyeтc небольшим поворотом барабана 3 вокруг оси 8. При 40 полиспаст, надстройку и стрелу перегружател ..During normal operation, the polyspath ropes are drawn, the difference between which is carried out by a slight turn of the drum 3 around the axis 8. At 40 the chain hoist, the superstructure and the reloading boom ..

Claims

Invention Formula

45 Suspension, including the base, on which a hydraulic cylinder and a drum are mounted on the fastening axes, is connected. worn with the ropes of the polyspast, characterized in that, in order to reduce the overall dimensions of the suspension and reduce its metal capacity, the drum and hydraulic cylinder are mounted on the base with the possibility of their swinging around the axes of their attachment, and the hydraulic rod of the cylinder is eccentrically connected to the drum.

This rod 10 slowly moves along the hydraulic cylinder 11 by an insignificant amount. Hydraulic cylinder 11 rotates around axis 12 somewhat. When the cable of one of the polyspasts 1 breaks, the drum 3 rotates with acceleration from the remaining rope, and there is no piston rod 10 with a piston, which leads to the displacement of the piston rod O with the piston along the cylinder 11 and some rotation of the latter around the axis 12. The fluid between the cavities of the hydraulic cylinder flows through the black channel 13 with the throttle 14, and the remaining policy is damped pass50

that from na; ovalny effort to double. The transfer of movement from the drum 3 to the rod 10 occurs according to a non-linear law. The movement of parts of the device ends when the piston rod 10 is mounted on the hydraulic cylinder cover 11. At the same time, the volume of fluid in the cavities of the one-way hydraulic cylinder is different, which, when the device is triggered, results in evacuation of the lower cavity. Therefore, it is necessary either to communicate it with an auxiliary reservoir, or, as in this case,

take into account the additional force of resistance to the movement of the rod 10.

In addition, after the device has triggered, the superstructure 15 is either loaded with a torsional moment (the shoulder of which is equal to the radius of the drum 3 if the housing is attached to the superstructure without a vertical axis), or some rotation of the housing 7 occurs around the axis 17, the value of which depends on

the multiplicity of the polyspasts 1, the radius of the drum 3, the distance from the axis 17 to the axis 8 of the drum 3.

Due to its small size, the device is assembled in a common case with blocks of tackle blocks, which allows the transfer of force from the tackle cables to the superstructure, mainly along the axis of suspension. Due to the non-linearity of the transfer of movement from the drum to the rod, the impact is eliminated at the initial stage of operation, which leads to a decrease in the dynamic loads transferred to the remaining t

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Compiled by N.Tuleninov Editor I.Shulla Tehred I.Veres Corrector V.Girn to

Order 3459/32 Circulation 606, Subscription

VSShZh State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35., Raup1ska nab. D. 4/5

1TRO5; a printing and printing company, Uzhgorod, st. Project, 4