SU927706A1

SU927706A1 - Arrester

Info

Publication number: SU927706A1
Application number: SU802986564A
Authority: SU
Inventors: Виталий Григорьевич Гаврилов
Original assignee: Предприятие П/Я М-5671
Priority date: 1980-09-26
Filing date: 1980-09-26
Publication date: 1982-05-15

Description

(54) ЛОВИТЕЛЬ(54) CATCHER

Изобретение относитс к устройствам в области подъемно-транспортного машиностроени и может быть использовано в качестве ловителей кабин и площадок грузовых бесканатных подъемно-транспортных машин.The invention relates to devices in the field of lifting and transport machinery and can be used as catchers for cabs and platforms of non-rope hoisting machines.

Известен ловитель, содержащий смонтированные на каркасе кабины лифта подпружиненный эксцентрик с рычагом и приводной механизм П.Known safety device containing mounted on the frame of the Elevator cabin spring-loaded eccentric with lever and drive mechanism P.

Однако приводной механизм в бесканатных подъемниках сложен по конструкции , имеет большие габариты, вес и, кроме того, требует установки дополнительныхустройств дл увеличени числа оборотов инерционного органа механизма включени . При использовании предлагаемого ловител в грузовых бесканатных подъемниках упрощаетс конструкци приводного устройства.However, the drive mechanism in the cable-free lifts is complicated in design, has large dimensions, weight, and, in addition, requires the installation of additional devices to increase the number of revolutions of the inertia element of the activation mechanism. By using the proposed catcher in a cable-free hoist, the construction of the drive device is simplified.

Цель изобретени - упрощение конструкции ловител .The purpose of the invention is to simplify the design of the catcher.

Цель достигаетс тем, что в ловителе приводной механизм включает в себ груз, снабженный регулируемым упором и демпферной пружиной, размещенными на корпусе, причем упом нутый груз шарнирно св зан с рычагом .The objective is achieved in that in the catcher the drive mechanism includes a load, equipped with an adjustable stop and a damper spring, housed on the housing, said load being pivotally connected to the lever.

На фиг.1 изображено устройство, общий вид разрез; на фиг. 2 - то же, вид сбоку.Figure 1 shows the device, a general view of the section; in fig. 2 - the same, side view.

Ловитель кабины содержит жестко св занные друг с другом рычаг 1, снабженный пружиной 2 относительно корпуса 3, ось 4 и эксцентриковый , захват 5, вращающийс в опоре 6 корпуса 3. На приводном конце рычага 1 The cab safety device contains a lever 1 rigidly connected to each other, equipped with a spring 2 relative to the housing 3, an axis 4 and an eccentric gripper 5 rotating in the support 6 of the housing 3. At the drive end of the lever 1

10 шарнирно установлен груз 7, опирающийс на регулируемый упор 8. Груз 7 подпружинен демпферной пружиной 9 относительно корпуса, причем направление усилий пружины 9 и пружины 2 10, a weight 7 is pivotally mounted, supported by an adjustable stop 8. The load 7 is spring-loaded with a damper spring 9 relative to the body, and the direction of the forces of the spring 9 and spring 2

15 противоположны. Корпус 3 устройства жестко св зан с кабиной 10 подъемника .15 are opposite. The housing 3 of the device is rigidly connected to the cabin 10 of the elevator.

При движении кабины 10 подъемника вниз с ускорением, на корпус 3 When the movement of the cab 10 of the lift down with acceleration, on the body 3

20 ловител действует сила, равна Р m(g-a), где m - масса груза; g - ускорение свободного падени ; а - ускорение, с которым падает кабина 10. При сила, с которой 20 catcher acting force, equal to P m (g-a), where m is the mass of the load; g is the acceleration of free fall; and - acceleration with which the cabin 10 falls. At force with which

Claims

25 the load 7 acts on the body 3 of the catcher, is equal to zero (). With the force with which the load 7 acts on the body 3 of the catcher, it is less than the weight of the load 7. Thus, when a box of 10 s vcKopeHHeM falls, the system reduces the static effect of the weight of the load 7 on the catcher and the cabin 10. Spring 2 turns lever 1 and axis 4 with grippers 5, driving the working surfaces of the grippers in contact with the rails 11 of the elevator. Cabin 10 brakes. The safety device of the cab 10 of the lift is adjusted to actuation with: using the adjustable stop 8, and it is possible to adjust for acceleration from 0 to 9.8 m / s. When installing individual catchers on two guides, simultaneous operation is ensured with the help of stops 8. If necessary, the catcher gripper performs on two guides with one operating spring. The spring 9 and the stop 8 prevent the mechanism from collapsing during unloading and braking of the cabin and eliminate the free oscillations of the load. The gripping device is self-braking. The application of the proposed catcher in the hoisting and transport machinery makes it possible to significantly simplify the existing constructions of catchers in the ropeless hoists, to reduce the size and weight. The weight of the catcher is reduced by 5 times, the dimensions by 5 times, and the labor intensity of manufacturing - by 20-30 times. The maximum use of the invention will give a total economic effect in the amount of 100 thousand rubles. Claim device comprising a spring-loaded eccentric with a lever mounted on the frame of the elevator car and a drive mechanism characterized in that, in order to simplify the design, the drive mechanism includes a load equipped with an adjustable stop and a damper spring placed on the body, and the said load is hinged It is connected with a lever. Sources of information taken into account during the examination 1. Pavlov N.G. Lifts and lifts. M.-L., Mechanical Engineering, 1965, p. 97-98, fig. 52 (prototype).