SU925843A1

SU925843A1 - Antitheft device for crane

Info

Publication number: SU925843A1
Application number: SU802976880A
Authority: SU
Inventors: Григорий Менделеевич Генкин
Original assignee: Предприятие П/Я М-5219
Priority date: 1980-08-29
Filing date: 1980-08-29
Publication date: 1982-05-07

Description

(54) ПРОТИВОУГОННОЕ УСТРОЙСТВО ДЛЯ КРАНА(54) ANTI-THEFT DEVICE FOR CRANE

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Изобретение относитс к области подъемно-транспортного машиностроени , а именно к противоугонным устройствам кранов.The invention relates to the field of lifting and transport machinery, namely, to anti-theft devices of cranes.

Известно протавоугонное устройство крана, содержащее тормозной башмак и оравод его перемещени l .There is a known anti-crane device containing a brake shoe and its movement l.

Известно также гфотивоугонное устройство дл крана, содержащее тормозные башмаки, расположенные над рельсом у колес 1фана, приводы перемещени башмаков , установленнью на кронштейнах, закрепленных на металлоконструкции крана 2.It is also known to have a motive device for a crane, containing brake shoes located above the rail at the wheels of a 1fan, drives for moving the shoes mounted on brackets fixed to the metal structures of the crane 2.

Недостатком известных устройств вл етс сфавнительно низка надежность.A disadvantage of the known devices is reliability, which is, of course, low.

Цель изобретени - повышение надежности крана.The purpose of the invention is to increase the reliability of the crane.

Указанна цель достигаетс тем, что устройство снабжено роликами, смонти- рованными на башмаках, выполненных V -образными, конечными выключател ми, устмовленными на кронштейнах, причем с двух сторон башмаков расположены ще.This goal is achieved by the fact that the device is equipped with rollers mounted on shoes made of V-shaped, limit switches mounted on the brackets, and on both sides of the shoes are located more.

ки, закрепленные на металлоконструкции крана, при этом приводы перемещени i башмаков выполнены в виде электромагнитов ..ki mounted on the crane metalwork, while the movement drives i of the shoes are made in the form of electromagnets ..

Кроме того, башмаки со стороны рель са могут быть выполнены с кпиновидны ми вьфезами.In addition, the rail-side shoes can be made with crank-shaped blades.

На фиг. 1 изображен общий вид прснтивоугоннотч устройства; на фиг. 2 - то FIG. 1 shows a general view of the device; in fig. 2 - then

10 сверху.10 on top.

Противоугонное устройство дл крана содержит башмаки 1, выполненные V -образными и расположенные на рельсе 2 The anti-theft device for the crane contains shoes 1, made V-shaped and located on the rail 2

15 между колесами 3 крана и кронштейнами 4, смонтированными на металлоконструкции 5 крана. На кронштейнах 4 установлены электромагниты 6 привода перемещени башмаков и конечные-выключатели 15 between the wheels 3 of the crane and the brackets 4 mounted on metal structures 5 of the crane. The brackets 4 are equipped with electromagnets 6 of the drive for moving the shoes and limit switches

Claims

20 7. On the shoes 1, there are rollers 8. On the side of the shoes 1, there are cheeks 9, made from vyutupamv 10, and mounted on the metal structures 5 of the crane. The shoes 1 on the side of the rail 2 can be made with wedge shaped vychezami. Anti-theft device of the crane works as follows. When the control circuit of the crane is turned on, the electromagnets 6 are turned on. The shoes 1 are attracted to the electromagnets 6, by pushing the limit switches 7, which allow the crane to move the mechanism. The attracted shoes 1 touch the rail 2 only with the rollers 8 and do not interfere with the movement of the crane in both directions along the rail 2. When the operator opens the control contact or if the control circuit of the crane control loses power, the electromagnets lower the shoes 1 that lie on the rail 2, moreover, the limit switches 7, which turn off the crane movement mechanism, open. After the engines are disconnected and the working brakes are applied, the crane continues the slow motion, and that of the shoe 1, the toe of which is directed in the direction of movement, moves along with the crane, propelled by the pole of electromagnet 6 and projections 1O, on the inner surfaces of the cheeks 9. Another shoe 1 remains in place. If the hijacking force is not sufficient to move the crane, then the sleep stops, the braking distance has passed and it does not reach the fixed shoe 1. If the hijacking force is sufficient to move the crane, then its wheel 3 rolls onto the fixed shoe 1, and the forces pressing the shoe 1 are in force. to the rail 2, which causes the crane to slow down. After the hijacking force disappears when the operator of the crane control circuit and the control pin is switched off, the electromagnets 6 are turned off. The electromagnet 6, touching the shoe 1, attracts it, and the limit switch 7 is closed, allowing the crane to move in the direction opposite to the previous movement. When the movement mechanism is turned on, the wheel 3 rolls away from the fixed shoe 1, to which the switched on electromagnet 6 approaches. The combined action of the protrusions Yu on the inner surfaces of the cheeks 9 and the electromagnet 6 decides the shoe 1 from the rail 2, after which the shoe attracts the electromagnet 6. Both shoes 1 are turned towards electromagnets b and do not prevent the movement of the crane in both directions, and the limit switches 7 are closed and allow movement in both directions. Anti-theft grip has a relatively high reliability due to the electromagnetic fixation of the shoe relative to the bracket, while the presence of the roller facilitates the passage of the rail joints by the shoes. Claim 1. Anti-theft device ol crane, Generally contains brake shoes, located above the rail at the crane wheels, movement drives of the shoes, mounted on brackets fixed to the crane metal structures, in order to increase reliability, they are equipped with rollers, mounted on shoes made of V-shaped, limit switches mounted on the brackets, and on both sides of the shoes there are cheeks attached to the metal structures of the crane, while the movement drives Shoe made in the form of electromagnets. 2. The device according to claim 1, that is, with the fact that the shoes on the side of the rail are made with wedge-shaped notches. Sources of information taken into account in the examination 1. The author's certificate; USSR NO 2O9685, cl. In bb C 9/18, 15.11.65.

2. USSR author's certificate number 683985, cl. In bb C 9/18, 15.06.77 (prototype).

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