SU620247A1

SU620247A1 - Gripping-cutting device of wood-falling machine

Info

Publication number: SU620247A1
Application number: SU772465068A
Authority: SU
Inventors: Валентин Александрович Александров; Александр Максимович Цыпук
Original assignee: Ленинградская Ордена Ленина Лесотехническая Академия Им. С.М.Кирова
Priority date: 1977-03-22
Filing date: 1977-03-22
Publication date: 1978-08-25

Description

(54) ЗАХВАТНО-СРЕЗАЮЩЕЕ УСТРОЙСТВО ЛЕСОЗАГОТОВИТЕЛЬНОЙ МАШИНЫ(54) CAPTURE-CUTTING DEVICE OF A FORESTRY MACHINE

Изобретение относитс к захватно-срезающкм устройствам лесозаготовительных машин и может быть использовано в лесной промышленности.The invention relates to gripping-cutting devices for forest machines and can be used in the forest industry.

Известны захватно-срезаюш,ие устройства лесозаготовительных машин, монтируемые на руко ти стрелы и содержащие стойку , на которой установлены гидроуправл емый захват, пильный аппарат, неподвижный упор и подвижный упор с гидроцилипдром надвигани его на дерево, укрепленный на штоке последнего 1 и 2.Known gripper cutters, forest machine devices, mounted on the arms of an arrow and containing a stand on which a hydraulic control gripper, a sawing device, a fixed stop and a movable stop with a hydrocylipdrome pushing it onto the tree, mounted on the last 1 and 2 rod, are installed.

Однако такие устройства имеют сложное конструктивное исполнение и ненадежны в работе.However, such devices have a complex design and unreliable in operation.

Цель изобретени - упропление конструкции и повышение надежности устройства в работе.The purpose of the invention is to strengthen the design and increase the reliability of the device in operation.

Дл этого на стойке смонтирован упругий элемент дл ограничени поворота ее в вертикальной плоскости относительно руко ти и фиксации в рабочем положении, а гидроцилиндр с закрепленным па его штоке упором выполнен поворотным в продольной вертикальной плоскости и снабжен регул тором его поворота.For this purpose, an elastic element is mounted on the stand for limiting its rotation in the vertical plane relative to the arm and fixing in the working position, and the hydraulic cylinder with the rod fixed to its rod is made rotatable in the longitudinal vertical plane and provided with a regulator for its rotation.

На чертеже изображено захватно-срезаюшее устройство лесозаготовительной машины , обш,ий вид.The drawing shows a gripping-cutting device of a logging machine, general view.

Захватно-срез.ающее устройство содержит стойку 1 с гидроуправл емым захватом 2. К стойке 1 прикреплен неподвижный упор 3, размещенный выше захвата 2, а ниже этого захвата смонтирован с возможностью регулировки угла гидроцилиндр 4 с закрепленным на выдвижном штоке упором 5. Между захватом 2 и упором 5 размещен пильный аппарат б с механизмом подачи. К стойке 1 прикреплен упругий элемент в виде пружины 7 с упором в руко ть 8 стрелы лесозаготовительной машины.The gripping-cutting device contains a stand 1 with a hydraulically-controlled gripper 2. A fixed stop 3 attached above the gripper 2 is attached to the stand 1, and below this gripper the hydraulic cylinder 4 is mounted with adjustable angle to the stop-mounted support 5. Between the gripper 2 and stop 5 placed the saw unit b with a feed mechanism. An elastic element in the form of a spring 7 is fixed to the stand 1 with an emphasis on the arm 8 of the boom of the forest machine.

Предлагаемое захватно-срезающее устройство работает следующим образом.The proposed gripping device operates as follows.

Claims

When you hover the device on the tree, the spring 7 holds the grip 2 in position, b.chzkom to the horizontal, which facilitates the capture of the trunk. In the process of gripping, the upper and lower stops 3 and 5 enter into contact with the barrel. Then, by switching on the hydraulic cylinder 4 pas, the stem is pushed out with the support 5, a bending moment and tensile force in the wood from the side of the saw unit 6 are created. 2 and, accordingly, to the cross section of the barrel at an angle φ less than the friction angle, then with an increase in the force of the hydraulic cylinder, the contact of the stop with the barrel improves, and slippage is completely eliminated. Under these conditions, the sawing device 6 carries out a clampless cutting of the trunk. Under the action of a bending moment previously created in the trunk, a directed fall of the tree occurs in the plane of the manipulator in the direction away from the machine. In the process of innovation, it is possible to pack the tree onto the conic of the logging machine, since the spring force 7 is chosen to be less than the force from the weight of the trees, therefore, -, at 7, does not prevent the device from moving relative to the boom arm during gravitational movement. After the end of packing and release of the gripper 2, the device is automatically returned to its original position by the spring 7 and the brush with the stop 5 is pulled into the hydraulic cylinder 4. The device is ready for the next operating cycle. The proposed design will simplify the gripping and cutting device, reduce weight and reduce dimensions while increasing the reliability and performance of the harvesting equipment. Claims of the harvesting machine of the harvesting machine, mounted on the arms of the boom and containing a stand on which a hydraulic-mounted clamp is installed, a sawing device, a fixed stop and a movable stop with a hydraulic cylinder pushing it onto the tree, mounted on the latter’s stem, characterized in that in order to simplify the construction and increase the reliability in operation, an elastic element is mounted on the rack to restrict its rotation in the vertical plane relative to the handle and to fix it in the working position, and drotsilindr with schtoke fixed at its abutment is rotatable in a longitudinal vertical plane and is provided with a regulator of its rotation. Sources of information taken into account in the examination: 1. USSR author's certificate number 451425, cl. A 01 G 23/08, 1974.

2. USSR author's certificate number 509263, cl. A 01 G 23/08, 1976.