SU673584A1

SU673584A1 - Vice gripper

Info

Publication number: SU673584A1
Application number: SU731980482A
Authority: SU
Inventors: Петр Дмитриевич Хромов; Григорий Мовшевич Волчек; Владимир Дмитриевич Тимофеев
Original assignee: Предприятие П/Я А-7255
Priority date: 1973-12-26
Filing date: 1973-12-26
Publication date: 1979-07-15

Description

1 one

Изобретение относитс к грузозахватным устройствам.The invention relates to lifting devices.

Известен клещевой захват, содержащий раму с установленными на ней парами поворотных рычагов, нижние коншл ко торых имеют подхватные лапы 1 .The tick-borne gripper is known, containing a frame with pairs of pivoting levers mounted on it, the lower ends of which have lifting legs 1.

Известный захват обеспечивает, в какой-то мере, возможность перегрузки . различных по габаритам грузов, но, однако , установка его рабочих органов в положение , соответствующее размерам перегружаемого груза, обеспечиваетс дополнительным приспособлением, приводимым в действие вручную, что усложн ет его конструкцию.Known capture provides, in some measure, the possibility of overload. cargo sizes of various sizes, but, however, the installation of its working bodies in a position corresponding to the size of the cargo being loaded, is provided with an additional device operated manually, which complicates its design.

Наиболее близким к описываемому изобретению вл етс клещевой захват дл различных по длине грузов, содержащий раму с установленными на ней крайними и средними парами поворотных рычагов , снабженных прижимными башмаками 2.The closest to the described invention is a clamp gripper for loads of different length, containing a frame with extreme and middle pairs of pivoting levers mounted on it, equipped with pressure shoes 2.

Однако конструкци этого клещевого захвата недостаточно эффективна в рабо- 2However, the design of this tick capture is not effective enough in the work-

те из-за неравномерного усили при захвате груза.those due to uneven efforts at seizing the load.

Цель изобретени - повышение эффективности работы клещевого захвата.The purpose of the invention is to increase the efficiency of the tick capture.

Это достигаетс тем, что каждый из средних пар рычагов снабжен подпружиненной вилкой, на которой закреплен с помощью щарнира башмак.This is achieved by the fact that each of the middle pairs of levers is provided with a spring-loaded plug, to which it is fastened with the help of a shoe joint.

На фиг. 1 изображен клещевой захват, вид спёреда; на фиг. 2 - вид сбоку; на фиг. 3 - вид по стрелке А на фиг. 2; на фиг. 4 - разрез Б-Б на фиг. 3; на фиг. 5 - разрез В-В на фиг. 3; на фиг. 6 - разрез Г-Г на фиг. 1; на фиг. 7 -. схема запасрвки канатов захвата .FIG. 1 shows a tick-borne grip, a kind of spread; in fig. 2 - side view; in fig. 3 is a view along arrow A in FIG. 2; in fig. 4 shows a section BB in FIG. 3; in fig. 5 shows a section B-B in FIG. 3; in fig. 6 - section G-Y in FIG. one; in fig. 7 -. scheme of seizure ropes capture.

К грузовой тележке 1 крана (на чертежах не показан) присоединена телескопическа шахта, состо ща из секши 2, 3, 4. Секии 2 выполнена неподвижной,, а секции 3 и 4 - подъемно-опускными.A telescopic shaft is connected to the cargo trolley 1 of the crane (not shown), consisting of secchi 2, 3, 4. Section 2 is made stationary, and sections 3 and 4 are lifting and lowering.

Claims

Section 4 has a frame 5, on which by means of hinges 6 are fixed middle and extreme pairs of swing levers 7 and 8, respectively; Each lever has a catch foot, made in the form of a pressure shoe O, pivotally attached to the box 10, which is attached to the lower end of the lever. The levers 7, located in the middle of the grip, are mounted in the notch of the plug 11 placed in the box 10. The fork is reinforced by means of axles 12 installed in its oval-shaped holes 13, which allow the fork to move. The spring 1 4 rests at one end against the end of the fork, and the other end against the wall of the box 10. The catch legs of the outer arms do not have spring-loaded forks. The levers 7 and 8 are made with shanks 15, which are connected through hinges 16 and 17 to a moving frame 18. On the latter, blocks 19 i are mounted which, by means of ropes 20, are connected to the drum 21 of the lifting winch mounted on trolley 1. Frame 18 moves along guiding the frame 5, on which the axis 22 of the block 23 is fastened, connected by means of a cable 24 with the drum 21 of the lifting winch and the lock winch drum 25. The number of pairs of pivoting arms depends on the size of the cargo being loaded. The operation of the tick clamp is carried out as follows. In the initial position, the levers 7 and 8 are in the divorced position. A lifting winch is turned on to grip the load, while rotating the drum 21 of which blocks 19 and 23 are lowered, which causes the lowering of section 4. Then the closing winch is turned on. The rotation of the drum 25 of this winch causes the lowering of the block 23, and the blocks 19 remain stationary at this moment. Since the axle 22 of the block. 23 is fixed on the frame 5, when the block 23 is mounted with the frame, 5 tons of 1Q and 1 turn and the levers with lifting legs move together, picking up the load. Since the size of the load does not exceed the distance between the extreme levers 8, only the levers 7 participate in the operation (gripping the load), and the extreme levers 8 remain free. The presence of springs 14 provides uniform preload. 1: If the load has dimensions greater than the specified distance, the load is gripped by the levers 8, and the middle levers 7, under the action of the springs, only press the load, somewhat unloading the outer levers. At the same time, if the load in its middle part has curvatures (protruding zones), then the shoes of the middle levers compress the springs and do not prevent the load from being seized with the extreme levers. After the load is clamped between the levers, the drum 21 of the lifting winch is turned on. The frame 5 with the arms gripping the load rises upwards. Cargo moves in the right direction. A lifting winch is turned on to lower the load. The release of the load is made by turning on the lock winch. When the drum 25 is rotated, the blocks 23 are raised upward, while the blocks 19 remain stationary. Levers 7 and 8 flow ts, freeing up the load. Claims of the invention Tick-borne gripper for loads of various lengths, comprising a frame with extreme and middle pairs of pivoting levers mounted on it equipped with pressure shoes, which are designed so as to increase. In terms of the efficiency of its operation, each of the middle pairs of levers is provided with a spring-loaded plug, onto which it is attached with a hinge to the shoe. Sources of information taken into account in the examination 1. USSR author's certificate number 347279, cl. In 66 C 1/38, 1972.

2. USSR Author's Certificate No. 36О307, cl. 66 C 1/42, 1972.

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