SU527377A1

SU527377A1 - Lifting table

Info

Publication number: SU527377A1
Application number: SU2118447A
Authority: SU
Inventors: Леонид Семенович Владимиров
Original assignee: Проектно-Конструкторское Бюро Главного Управления Автомобильного Транспорта Мосгорисполкома
Priority date: 1975-03-28
Filing date: 1975-03-28
Publication date: 1976-09-05

Description

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Изобретение относитс к механизации погрузочно-разгрузочных работ, в частности , к грузоподъемным столам, предназначенным , Hanpmviep, дл подъема электропогрузчика с грузом от уровн земли до уров н пола кузова транспортного средства.The invention relates to the mechanization of loading and unloading operations, in particular, to lifting tables designed, Hanpmviep, for lifting an electric forklift with a load from ground level to the level of the vehicle body floor.

Известен грузоподъемный стол, содержащий подвижную платформу, опирающуюс на две пары щарнирно соединенных между собой рычагов, образующих нюрнбергские ножницы и установленных на неподвижном основании, силовой цилиндр подъема и механизм подъема рычагов в начальный момент .A lifting table is known, comprising a movable platform supported on two pairs of pivotally connected levers forming a Nuremberg scissors and mounted on a stationary base, a lift ram and a lever lifting mechanism at the initial moment.

Известный грузоподъемный стол обеспечивает подъем платформы на небольшую величину, что приводит к незначительному снижению усили , которое требуетс создат силовым цилиндром в начальный момент подъема платформы.The known lifting table provides a platform for raising by a small amount, which leads to a slight decrease in the force required to be created by the power cylinder at the initial moment of lifting the platform.

Целью изобретени вл етс повышение грузоподъемости грузоподъемного стола.The aim of the invention is to increase the lifting capacity of the lifting table.

Эта цель достигаетс тем, что механиз подъема рычагов в начальный момент содержит , по крайней мере, один плунжер, заThis goal is achieved by the fact that, at the initial moment, the lever lifting mechanism contains at least one plunger,

репленный на одном из рычагов нюрнбергски ножниц и взаимодействующий своим штоком с неподвижным основанием грузоподъемного стола.Replicated on one of the levers of the Nuremberg scissors and interacting with its stem with the fixed base of the lifting table.

На фиг. 1 изображен предлагаемый грузоподъемный стол, опутанное положение; на фиг. 2 - то же, приподн тое положение; на фиг. 3 - то же, полностью подн тое положение .FIG. 1 shows the proposed lifting table, entangled position; in fig. 2 - the same, raised position; in fig. 3 - the same, fully raised position.

Грузоподъемный стол содержит основание 1 и подвижную платформу 2, соединенную двум парами шарнирно закрепленных рычагов 3, выполненных по типу нюрнбергских ножниц, с основанием 1. К основанию шарнирно прикреплен корпус силового цилиндра 4, шток которого соединен через ось 5 с рычагом 3 подвижной части грузоподъемного стола.Lifting table contains a base 1 and a movable platform 2 connected by two pairs of pivotally attached levers 3, made according to the type of Nuremberg scissors, with a base 1. The body of the power cylinder 4 is pivotally attached to the base, the stem of which is connected through the axis 5 to the lever 3 of the movable part of the lifting table .

Claims

Lifting stod equipped with a mechanism for lifting the levers at the initial moment, containing at least one plunger 6, which can be telescopic. The plunger 6 is fixed on the levers 3 of the lifting table and interacts with its rod with the base 1 of the lifting foot. However, the plunger 6 can be fixed to the base 1 and interact with the stop mounted on the levers 3. To hold the plunger in the desired position, the lever 7 attached to the limiter 9 by the spring 8 is attached to the plunger. To lift the table with the load out of the fully lowered position (Fig. 1) the working medium under pressure is fed into the corresponding cavities of the power pillow 4 and the plunger 6. At the same time, only the plunger 6 is working at the initial lifting moment, since the lifting force created by the power cylinder 4 is negligible due to the very small arms but. When the platform 2 with the load is raised by the plunger 6 to a sufficient height, the shoulder of the force applied from the power cylinder 4 increases and the power cylinder 4 lifts the platform with the load. At a certain moment of lifting, the plunger rod 6 leaves the interaction with the base 1, and the power cylinder 4 alone lifts the platform 2 with the load. In order to lower the platform of the lifting table, the working fluid under pressure is fed into the opposite cavities of the power cylinder 4 and the plunger 6. In this case, the power cylinder 4 lowers the platform, and the plunger 6 folds and does not prevent the platform from fully lowering. Claims of the invention A lifting table comprising a movable platform supported on two pairs of pivotally connected levers forming a Nuremberg scissors and mounted on a fixed base, a lifting ram cylinder and a mechanism for lifting the levers at the initial moment, characterized in that, in order to increase the table lifting capacity , the lever lift mechanism contains at least one plunger fixed on one of the levers of the Nuremberg scissors and interacting with its fixed stock stem lifting table.