SU931692A1

SU931692A1 - Load-lifting balancing device

Info

Publication number: SU931692A1
Application number: SU802999749A
Authority: SU
Inventors: Андрей Адольфович Шлейхер; Вера Елена Зигрид Шлейхер
Original assignee: Запорожский Проектно-Конструкторский И Технологический Институт
Priority date: 1980-11-03
Filing date: 1980-11-03
Publication date: 1982-05-30

Description

(54) ГРУЗОПОДЪЕМНОЕ БАЛАНСИРОВОЧНОЕ УСТРОЙСТВО(54) LOADING BALANCING DEVICE

1one

Изобретение относитс к грузоподъемным механизмам, а именно к грузоподъемным балансировочным устройствам.The invention relates to lifting mechanisms, namely to lifting balancing devices.

Известно грузоподъемное балансировочное устройство, содержащее корпус, установленную в последнем ось с размещенной на ней втулкой, пружину, расположенную между регулируемым упором и втулкой, а также установленный на оси барабан с гибким т говым органдм 1.A lifting balancing device is known, comprising a housing, an axle mounted on the latter with a sleeve placed on it, a spring located between the adjustable stop and the sleeve, and a drum mounted on the axis with a flexible pull organizand 1.

Недостатком известного устройства вл етс его сравнительно низка надежность в работе.A disadvantage of the known device is its relatively low operational reliability.

Цель изобретени - повышение надежности работы устройства.The purpose of the invention is to increase the reliability of the device.

Дл достижени этой цели устройство снабжено гибким элементом, один конец которого закреплен на оси с возможностью навивки на нее в направлении, противоположном направлению навивки гибкого т гового органа на барабан, а другой - на корпусе , при этом последний выполнен с прорез ми , в которых установлены концы оси, причем барабан установлен на оси жестко, а втулка - с возможностью вращени относительно нее.To achieve this goal, the device is equipped with a flexible element, one end of which is fixed on the axis with the possibility of winding on it in the direction opposite to the direction of winding of the flexible traction body on the drum, and the other on the body, while the latter is made with slots in which the ends of the axis, the drum being rigidly mounted on the axis, and the sleeve rotatably relative to it.

Кроме того, на оси симметрично основному установлен дополнительный барабан с гибким т говым органом.In addition, on the axis symmetrically to the main drum there is an additional drum with a flexible cable organ.

На фиг. 1 схематично изображено предлагаемое устройство, продольный разрез; на фиг. 2 - то же, вариант выполнени ; на фиг. 3 - разрез А-А на фиг. 1.FIG. 1 schematically shows the proposed device, a longitudinal section; in fig. 2 - the same, the embodiment; in fig. 3 shows section A-A in FIG. one.

Устройство состоит из корпуса 1 и снабжено втулкой 2, в которой на подшипниках 3 установлена ось 4 с барабанами 5 и 6, The device consists of a housing 1 and is equipped with a sleeve 2, in which an axis 4 with drums 5 and 6 is mounted on bearings 3,

10 выведенна за корпус I через прорези 7. На барабане 5 одним концом закреплен гибкий элемент 8, второй конец которого закреплен на корпусе 1. На барабане 6, выполненном коническим, крепитс гибкий т говый 15 орган (канат) 9, на котором подвешиваетс груз (не показан). В нижней части корпуса 1 -предусмотрен регулируемый упор 10 с болтами И, которые ввинчены в дно корпуса 1. Между втулкой 2 и упором 10 установлена пружина 12 сжати . В верхней части 10 is brought out of body I through slots 7. A flexible element 8 is fixed to the drum 5 at one end, the second end of which is fixed to the body 1. A flexible cable body 9 (rope) 9 is attached to the drum 6, which is conical ( not shown). In the lower part of the housing 1, an adjustable stop 10 with bolts I is provided, which are screwed into the bottom of the housing 1. A compression spring 12 is installed between the sleeve 2 and the support 10. At the top

20 корпуса 1 предусмотрен ограничитель 13 хода втулки 2 с болтами 14.20 housing 1 provides a limiter 13 stroke sleeve 2 with bolts 14.

Claims

In the embodiment of the device, a second conical drum 15 (Fig. 2) is provided with a flexible body 16 secured thereto. The drum 15 is installed symmetrically to the drum 6 on the axis 4. The load is suspended on the flexible bodies 9 and 16 at the same time. The lifting device operates as follows. The device is adjusted to a given capacity by moving the stop 10 with the help of bolts 11. The load is in its extreme upper position. When lowering the load, the rope 9 is twisted from the drum 6 and rotates it together with the axis 4 and the drum 5. In this case, the flexible element 8 is screwed onto the drum 5, moving the sleeve 2 down. Spring 12 is compressed, and the spring force increases in accordance with the torque - due to the increase in the diameter of the coil of the cable 9 on the drum 6. Thus, the necessary moment is provided to hold the load at any diameter of the coil on the drum 6. According to the second variant of the device, the operation is identical, the sleeve 2 is loaded symmetrically, which practically reduces to zero friction on body 1 as it moves. Thus, the proposed device allows to significantly simplify its design and improve manufacturability due to the lack of ball screw; increase the reliability and durability of the device, as well as the possibility of changing the load capacity without changing the design by varying the diameters of the cylindrical and tapered drums. Claim 1. Load-lifting balancing device, comprising a housing, an axle mounted on the latter with a sleeve placed on it, a spring located between the adjustable stop and the sleeve, as well as a drum mounted on an axis with a flexible body, characterized in that increase reliability, it is equipped with a flexible element, one end of which is fixed on the axis with the possibility of winding on it in the direction opposite to the direction of winding of the flexible traction body on the drum, and the other on the body, with ohm last configured slots in which the ends of the axle set, wherein the drum is mounted on an axle fixedly and hub - to rotate relative thereto.

2. The device according to claim 1, characterized in that an additional drum with a flexible organ is mounted symmetrically to the main axis on an axis. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2876196, cl. B 66 D 1/54, 01.23.80.