SU863505A2

SU863505A2 - Grapple for tree stumps

Info

Publication number: SU863505A2
Application number: SU792850292A
Authority: SU
Inventors: Илья Романович Шегельман; Геннадий Александрович Голубев
Original assignee: Карельский научно-исследовательский институт лесной промышленности
Priority date: 1979-12-11
Filing date: 1979-12-11
Publication date: 1981-09-15

Description

Изобретение относится к крановым грузозахватным устройствам, в частности к грейферам для пней.The invention relates to crane hoisting devices, in particular to grabs for stumps.

По основному авт. св. № 673590 известен грейфер для пней, включающий раму с вибратором, подпружиненным относительно рамы, челюсти и силовые цилиндры. Каждая челюсть грейфера снабжена двумя дополнительными шарнирно соединенными с ней параллельными тягами, одна из которых связана с рамой, а другая с вибратором flj .According to the main author. St. No. 673590 known for a stump grab, including a frame with a vibrator, spring-loaded relative to the frame, jaws and power cylinders. Each jaw of the grab is equipped with two additional parallel rods pivotally connected to it, one of which is connected to the frame, and the other to the vibrator flj.

Однако у известного грейфера мала величина раскрытия челюстей и он не может работать как подгребающий. Это препятствует полному использованию емкости грейфера и ведет к снижению эффективности его работы.However, the known grapple has a small opening of the jaws and it cannot work as picking up. This prevents the full use of the capacity of the grab and leads to a decrease in the efficiency of its work.

Цель изобретения - повышение эффективности грейфера.The purpose of the invention is to increase the efficiency of the grab.

Поставленная цель достигается тем, что каждая тяга, соединяющая челюсть и раму, выполнена телескопической.This goal is achieved in that each thrust connecting the jaw and frame is telescopic.

На чертеже изображен описываемый грейфер.The drawing shows the described grab.

Грейфер для пней включает раму 1 с вибратором 2, подпружиненным относительно рамы 1 пружинами 3, челюсти 4 и силовые цилиндры 5 поворота челюстей 4. Каждая челюсть 4 соединена тя- 30 гой 6 с вибратором 2 и тягой 7 с рамой 2. Каждая тяга 6 крепится к вибратору при помощи оси 8 и к челюсти 4 при помощи оси 9. Каждая тяга 7 грейфера выполнена телескопической. Грейфер при помощи подвески 10 навешивается на тракторный погрузчик с манипулятором.The stump grab includes a frame 1 with a vibrator 2, springs 3 spring-loaded relative to the frame 1, jaws 4 and power cylinders 5 for turning the jaws 4. Each jaw 4 is connected by a rod 6 with a vibrator 2 and a rod 7 with a frame 2. Each rod 6 is attached to the vibrator using the axis 8 and to the jaw 4 using the axis 9. Each grab rod 7 is made telescopic. Using the suspension 10, the grab is hung on a tractor loader with a manipulator.

Работает грейфер следующим образом .The grab works as follows.

Грейфер с раскрытыми челюстями 4 опускают на пень или группу пней. При включении силовых цилиндров 5 тяги 6 челюсти 4 начинают поворачиваться относительно осей 8 и одновременно поворачиваются вокруг осей 9. Пень сжимают челюстями 4 и включают вибратор 2. После осыпания грунта пень грузят в транспортное средство или сбрасывают на землю.The grab with open jaws 4 is lowered onto a stump or a group of stumps. When the power cylinders 5 are turned on, the rods 6 of the jaw 4 begin to rotate relative to the axes 8 and simultaneously rotate around the axes 9. The stump is compressed with the jaws 4 and the vibrator 2 is turned on. After the soil has been showered, the stump is loaded into a vehicle or dumped onto the ground.

При раскрытии челюстей 4 происходит одновременный поворот их вокруг осей 8 и 9. Это обеспечивает значительную величину раскрытия челюстей 4 грейфера и улучшает условие захвата груза. Челюсти 4 грейфера одновременно совершают сгребание пней и внедрение под них.When opening the jaws 4, they simultaneously rotate around the axes 8 and 9. This provides a significant amount of opening of the jaws 4 of the grab and improves the condition of the load. The jaws of 4 grabs simultaneously rake the stumps and implant under them.

Это способствует увеличению использования емкости грейфера, повышает эффективность его работы и расширяет' его технологические возможности.This helps to increase the use of the grab's capacity, increases its efficiency and expands its technological capabilities.

Claims

This invention relates to crane lifting devices, in particular to grabs for stumps. According to the main author. St. 673590 a grab for stumps is known, including a frame with a vibrator, spring-loaded with respect to the frame, jaw and power cylinders. Each jaw of the grapple is equipped with two additional parallel joints pivotally connected to it, one of which is connected to the frame and the other with a vibrator AND i. However, the known grapple has a small jaw opening and cannot work as a rake. This impedes the full utilization of the grapple's capacity and leads to a decrease in its efficiency. The purpose of the invention is to improve the efficiency of the grapple. The goal is achieved by the fact that each of them, connecting the jaw and the frame, is made telescopic. The drawing shows the described grapple. The grapple for stumps includes a frame 1 with a vibrator 2, spring-loaded with respect to frame 1 by springs 3, jaws 4 and power cylinders 5 for turning jaws 4. Each jaw 4 is connected by pull 6 to vibrator 2 and by pull 7 by frame 2. Each ha ha 6 is attached to the vibrator with the help of the axis 8 and to the jaw 4 with the help of the axis 9. Each grating 7 of the grab is made telescopic. The grapple with the aid of the suspension 10 is hung on a tractor loader with a manipulator. Works grapple as follows. A grapple with open jaws 4 is lowered onto a stump or a group of stumps. When power cylinders are turned on, 5 tons of gi 6 jaws 4 begin to rotate relative to the axes 8 and simultaneously rotate around the axes 9. The stump is compressed by the jaws 4 and turn on the vibrator

2. After the ground has been showered, the stump is loaded into a vehicle or dropped onto the ground. When opening the jaws 4, they are simultaneously rotated around the axes 8 and 9. This provides a significant amount of opening of the jaws 4 of the grapple and improves the condition for gripping the load. Jaws 4 grabs at the same time perfecting the raking of lines and introduction under them. This contributes to an increase in the use of the grab capacity, increases its efficiency and expands its technological capabilities. Claims of invention St. I 673590, characterized in that, in order to increase its efficiency, each junction of the jaw with the frame is made telescopic. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 673590, cl. In 66 C 3/16, 1978 (prototype).