SU1472420A1

SU1472420A1 - Overload preventing device for load handling arrangement

Info

Publication number: SU1472420A1
Application number: SU874216781A
Authority: SU
Inventors: Владимир Петрович Веретенников; Владимир Григорьевич Федосин
Original assignee: В.П. Веретенников и В.Г.Федосин
Priority date: 1987-03-25
Filing date: 1987-03-25
Publication date: 1989-04-15

Abstract

Изобретение относитс к подъемно-транспортному оборудованию, а именно к предохранительным устройствам от перегрузки грузоподъемных средств. Цель изобретени - повышение надежности. Устройство содержит корпус 1, в котором расположен шток 2 с поршнем 3, выполненным с кольцевой канавкой 17. В корпусе 1 выполнены отверсти 14, в которых расположены толкатели 15, поджимающие посредством пружины 8 шарики 16 к канавке 17 поршн 3. При чрезмерной нагрузке поршень 3 выдавливает шарики 16 из канавки 17, при этом снимаетс нагрузка и раздаетс звуковой сигнал. 1 з.п. ф-лы, 1 ил.The invention relates to a handling equipment, namely, safety devices from overloading the lifting means. The purpose of the invention is to increase reliability. The device includes a housing 1, in which is located the rod 2 with a piston 3, made with an annular groove 17. In the housing 1 there are holes 14, in which the pushers 15 are located, pressing the balls 16 to the piston 17 groove 17 by means of a spring 8. squeezes the balls 16 out of the groove 17, at the same time the load is removed and an audible signal is heard. 1 hp f-ly, 1 ill.

Description

Изобретение относитс к подъемно- транспортному оборудованию, а именно предохранительным устройствам от ерегрузки грузоподъемных средств. The invention relates to lifting and handling equipment, namely, safety devices against overloading of lifting equipment.

ЦелЕ изобретени - повышение наежности .The purpose of the invention is to increase reliability.

На чертеже приведено устройство, общий вид.The drawing shows the device, a general view.

Устройство дл предохранени от Ю ерегрузки грузоподъемного средства содержит цилиндрический корпус 1 , в котором расположен шток 2 с поршнем 32. На штоке 2 закреплен стакан 4, надетый на корпус 1. Между стенками 15 корпусй 1 и стакана 4 установлено кольцевое уплотнение 5. Проушины 6 дл св зи с грузозахватным органом и грузоподъемным средством закреплены на корпусе 1 и штоке 2. -На штоке 2 установлена пружина 7. Полосовые пружины 8 закреплены в верхней части на корпусе 1 и зафиксированы в нижней части посредством втулки 9, соединенной резьбой с корпусом 1 и прижимающей кольцом 10 тсонцы пружин 7 к корпусу 1. Кольцо 1 О соединено с втулкой 9 посредством шариков I1. На втулке 9 установлен вороток 12. Полость корпуса 1 сообщена с атмосферой через клапан 13 -. стакана 4. В корпусе 1 выполнены отверсти 14, в которых расположены толкатели 15, прижимающие посредством пружин 8 шарики 6 к кольцевой канавке 17 поршн 3. Уплотнение 18 установлено.между поршнем 3 иThe device for protecting the load-lifting device Yu contains a cylindrical body 1, in which is located a rod 2 with a piston 32. A cup 4 fixed to the body 1 is fixed on the rod 2. A ring seal 5 is mounted between the walls 15 of the body 1 and the glass 4. The connection with the load gripping body and the lifting means is fixed on the housing 1 and the stem 2. A spring 7 is mounted on the stem 2. The strip springs 8 are fixed in the upper part on the housing 1 and fixed in the lower part by means of a sleeve 9 connected by a thread with the building Som 1 and the pressing ring 10 tsontsy springs 7 to the housing 1. The ring 1 is connected to the hub O 9 by I1 beads. A collar 12 is installed on the sleeve 9. The cavity of the housing 1 is in communication with the atmosphere through a valve 13 -. Cup 4. In the housing 1 there are holes 14 in which the pushers 15 are located, pressing the balls 6 to the annular groove 17 of the piston 3 by means of springs 8. The seal 18 is installed between the piston 3 and

корпусом 1.housing 1.

Устройство работает следующим об разом .The device works as follows.

При перегрузке шарики 16 выход т из канавки 17 и шток 2 со стаканом 4 перемещаетс относительно корпуса 1, при этом за счет перепада давлени между полостью корпуса 1,, ста- 45 каном 4 и атмосферой срабатьюает клапан и раздаетс звуковой сигнал.When the ball is overloaded, the balls 16 emerge from the groove 17 and the rod 2 with the glass 4 moves relative to the housing 1, whereby due to the pressure difference between the cavity of the housing 1, the valve 4 and the atmosphere, the valve is activated and an acoustic signal is heard.

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по которому следует остановить грузоподъемное средство.which should be stopped lifting means.

Claims

1. A device for protecting an overload of a load-carrying means, comprising a cylindrical body made with holes, a piston rod, partially located in the body cavity and spring-loaded relative to the latter, eyelets for communicating with the load-lifting means and a lifting body mounted on the body and brush; and a sound supply unit, including a cup located on the other end of the body, and a valve, which is designed so that, in order to increase reliability, it is provided with strip springs, located outside the cylindrical body along its generatrix and fixed ends on the body, pushers, balls and ring seals, the piston being made with an annular,: groove, pushers located in the holes of the body in which the balls are partially located pressed by springs through the pushers to the annular groove of the piston, in this case the body is partially located in a glass fixed on the rod, ring seals are installed between the walls of the body and the glass, body and piston, and the body cavity communicates with the atmosphere feroy by the Theoretical SET on the valve cup.

2. The device according to claim 1, characterized in that it is provided with a sleeve, worn on a cylindrical body, connected to the latter by means of a reattachment connection, and one of the ends of the strip springs are located between the sleeve and the case.