SU763095A1

SU763095A1 - Machine for cutting-off branches from fallen trees

Info

Publication number: SU763095A1
Application number: SU772541456A
Authority: SU
Inventors: Василий Николаевич Макаренцев; Владимир Александрович Проскуряков
Original assignee: Сыктывкарский Механический Завод
Priority date: 1977-11-09
Filing date: 1977-11-09
Publication date: 1980-09-15

Description

Изобретение относится к деревообрабатывающему оборудованию и может быть использовано в лесной и деревообрабатывающей промышленности.The invention relates to woodworking equipment and can be used in the forestry and woodworking industries.

Известно устройство для срезания сучьев с поваленных деревьев, включа-. ющее в себя корпус, на котором установлены имеющие привод от гидроцилиндра три рычага, снабженные криволинейними ножами, образующими замкнутый режущий контур, причем два рычага шар нирно соединены с корпусом и имеют механизм их синхронного поворота, выполненный в виде подвижно установленных в корпусе подпружиненных направля .15 ющих, одни концы которых соединены с центральным (третьим) рычагом, а на других концах установлен двуплечий ползун, который тягами кинемати- __ чески связан с боковыми рычагами [1] .A device for cutting branches from fallen trees, including. comprising a housing on which three levers with a hydraulic actuator are mounted, equipped with curved knives forming a closed cutting contour, the two levers being ball-mounted nirno and have a synchronous rotation mechanism made in the form of spring-loaded guides movably mounted in the housing .15 those, one ends of which are connected to the central (third) lever, and at the other ends there is a two-shouldered slider, which is kinematically linked by the rods with __ levers [1].

Наиболее близким техническим решением к изобретению является устройство для срезания сучьев с поваленных деревьев, включающее в себя корпус, 25 на котором установлены имеющие привод в виде гидроцилиндров и образующие замкнутый режущий орган криволинейные верхний и боковые ножи, причем боковые ножи связаны с корпусом посредством шарниров и рычагов, которые имеют механизм их синхронного поворота, выполненный в виде зубчатых секторов ИНедостаток известных устройств заключается в том, что они сложны, имеют низкую надежность в работе и в процессе эксплуатации при захвате дерева, подлежащего обработке, если его- ось не совпадает с продольной осью устройства, верхний нож поскольку жестко закреплен на рычаге, не имеющим возможности поворачиваться относительно корпуса, препятствует захвату дерева боковыми ножами. Последнее приводит к тому, что оператору в процессе захвата дерева приходится неоднократно манипулировать балкой, на которой закреплено захватносрезающее устройство, что значительно снижает производительность устройства.The closest technical solution to the invention is a device for cutting branches from felled trees, comprising a housing 25 on which are installed curved upper and side knives having a drive in the form of hydraulic cylinders and forming a closed cutting body, the side knives being connected to the body by hinges and levers , which have a mechanism for their synchronous rotation, made in the form of gear sectors. A disadvantage of the known devices is that they are complex, have low reliability in operation and in cession operation when capturing a tree to be processed, if him- axis does not coincide with the longitudinal axis of the device, because the upper blade is rigidly fixed on the lever, are unable to rotate relative to the housing, prevents the seizure of wood lateral knives. The latter leads to the fact that the operator in the process of capturing a tree has to repeatedly manipulate the beam on which the gripping-cutting device is mounted, which significantly reduces the performance of the device.

Цель изобретения - снижение металлоемкости повышение надежности и производительности устройства.The purpose of the invention is the reduction of metal consumption, increasing the reliability and performance of the device.

Цель достигается тем, что верхний нож связан с корпусом посредством рычага и шарнира, ось которого соедине763095 на с гидроцилиндром привода верхнего ножа.The goal is achieved in that the upper knife is connected to the body by means of a lever and a hinge, the axis of which is connected 763095 to the hydraulic cylinder of the upper knife drive.

На фиг. 1 схематично изображено предлагаемое устройство, вид сбоку; на фиг.2 - тоже, вид по стрелке А на фиг. 1; на фиг. 3 - передвижная сучкорезная машина с предлагаемом захватно-срезающим устройством.In FIG. 1 schematically shows the proposed device, side view; in Fig.2 is also a view along arrow A in Fig. 1; in FIG. 3 - mobile delimbing machine with the proposed gripping-cutting device.

Устройство для срезания сучьев с поваленных деревьев содержит корпус 1, в котором на осях 2 установлены -рычаги 3 с закрепленными, на них криволинейными боковыми ножами’ 4 и меха•ниэмом их синхронного поворота, третий рычаг 5 с шарнирно закрепленным на нем верхним ножом. Верхний нож 6 через ось 7 шарнира соединен с гидроцилиндром 8. Механизм синхронного поворота рычагов 3 выполнен в виде двух взаимодействующих между собой зубчатых секторов 9, один из кото- ¹рых соединен через рычаг 10 с гидроцилиндррм 11. Гидроцилиндры 8 и 11 расположены внутри корпуса 1. Устройство может быть установлено на балке 12, поворотно смонтированной на шасси передвижной машины 13. Для протаскивания деревьев через сучкорезное устройство на балке 12 установлен захват 14, снабженный приводом его передвижения.A device for cutting branches from felled trees contains a housing 1, in which axles 3 are mounted with levers 3 with fixed, curved side knives' 4 and a mechanism for their simultaneous rotation, the third lever 5 with an upper knife pivotally mounted on it. The upper knife 6 through the axis 7 of the hinge is connected to the hydraulic cylinder 8. The mechanism of synchronous rotation of the levers 3 is made in the form of two interacting tooth sectors 9, one of which ^{1 is} connected through the lever 10 to the hydraulic cylinder 11. The hydraulic cylinders 8 and 11 are located inside the housing 1 The device can be installed on a beam 12, rotatably mounted on the chassis of a mobile machine 13. To drag trees through a delimbing device on a beam 12, a gripper 14 is installed, equipped with a drive for its movement.

Устройство для срезания сучьев работает следующим образом.A device for cutting branches is as follows.

Балка 12 с устройством наклоняется к штабелю деревьев, рычаги 3 разводятся в стороны, а рычаг 5 с верхним ножом 6 поднимается. Затем оператор опускает конец балки на штабель деревьев и включением гидроцилиндра 11 сводит вместе рычаги 3, захватывая [ствол дерева. После этого посредством включения гидроцилиндра 8 верхний ¹нож б опускается, самоцентрируясь при этом относительно ствола обрабатываемого дерева. Далее оператор подводит 5 к захватно-срезающему устройству захват 14, зажимает им комлевую часть ствола дерева и перемещением захвата 14 вдоль балки 12 протаскивает дерево через замкнутый режущий контур устройства. После этого цикл работы устройства повторяется вновь.The beam 12 with the device leans toward the stack of trees, the levers 3 are moved apart, and the lever 5 with the upper knife 6 rises. Then the operator lowers the end of the beam to the stack of trees and turning on the hydraulic cylinder 11 brings the levers 3 together, capturing [the trunk of the tree. After that, by turning on the hydraulic cylinder 8, the upper ¹ knife b is lowered, thereby self-centering relative to the trunk of the treated tree. Next, the operator brings 5 a gripper 14 to the gripping-cutting device, clamps the butt portion of the tree trunk with it, and moving the gripper 14 along the beam 12 pulls the tree through the closed cutting contour of the device. After this, the cycle of the device is repeated again.

Claims

The invention relates to woodworking equipment and can be used in forestry and woodworking industries. A device for cutting branches from fallen trees is known, including a body on which three levers are mounted and driven by a hydraulic cylinder, which are equipped with curvilinear tools, which form a closed cutting contour, two levers are spherically connected to the body and have a mechanism for their synchronous rotation, made in the form of spring-mounted movably mounted in the body them, one ends of which are co.cenes with a central (third) lever, and on the other ends there is a double-shouldered slider that is kinematically connected with side levers l The closest technical solution to the invention is a device for cutting branches from fallen trees comprising a body on which are mounted having a drive in the form of hydraulic cylinders and forming curved upper and side knives forming a closed cutting organ, and the side knives are connected to the body by means of hinges and levers that have furs the base of their synchronous rotation, made in the form of toothed sectors 2. The disadvantage of the known devices is that they are complex, have low reliability in operation and in operation when they pick up the tree to be processed if its axis does not coincide with the longitudinal axis of the device, the upper since the knife is rigidly fixed on the lever, which is not able to rotate relative to the body, it prevents the side-blades from engaging the tree. The latter leads to the fact that the operator in the first generation of a tree hatch has to repeatedly manipulate the beam on which the cutting device is fixed, which significantly reduces the performance of the device. The purpose of the invention is to reduce metal consumption, improving the reliability and performance of the device. DOS target: thrown by the fact that the upper knife is connected to the body by means of a lever and a hinge, the axis of which is connected to the hydraulic cylinder of the upper knife drive. FIG. 1 schematically shows the proposed device, side view; figure 2 - the same, v.id along arrow A in FIG. 1; in fig. 3 - a mobile knotting machine with a prepaxelling gripping shear device. The device for cutting branches from felled trees includes a housing 1, in which axles 2 are fitted with levers 3 with fixed, curved linear side knives 4 and furs on them, the low of their synchronous rotation, the third lever 5 with an upper knife hinged to it. The upper knife 6 through the axis 7 of the hinge is connected to the hydraulic cylinder 8. The mechanism of synchronous rotation of the levers 3 is made in the form of two interacting toothed sectors 9, one of which is connected through the lever 10 to the hydraulic cylinder 11. The hydraulic cylinders 8 and 11 are located inside the housing 1. Device The device can be mounted on the beam 12, rotatably mounted on the chassis of the mobile machine 13. To pull the trees through the delimbing device on the beam 12, a clamp 14 is installed, equipped with a drive for its movement. The device for pruning boughs works as follows. The beam 12 with the device is inclined towards the stack of trees, the levers 3 are set apart and the lever 5 with the upper knife 6 is raised. The operator then lowers the end of the beam onto the stack of trees and, by turning on the hydraulic cylinder, brings the levers 3 together, grasping the trunk of the tree. After that, by turning on the hydraulic cylinder 8, the upper knife b is lowered, while self-centric with respect to the trunk of the tree being processed. Next, the operator brings the gripper 14 to the gripping device, clamps the butt of the tree trunk and, by moving the gripper 14 along the beam 12, pulls the tree through the closed cutting contour; devices. After this, the cycle of operation of the device is repeated. The invention is a device for cutting branches from felled trees, including a housing on which hydraulic actuators are installed and form a curved cutting org curved upper and side knives, the side knives being connected to the housing by means of hinges and levers that have their mechanism synchronous rotation, made in the form of toothed sectors, which is necessary so that, in order to reduce metal consumption, increase the reliability and performance of the device, the upper knife is connected to the body by means of a lever and a hinge, the axis of which is connected to the hydraulic cylinder of the drive of the upper knife. Sources of information taken into account in the examination 1, USSR Author's Certificate No. 565820, cl. B 27 L 1 / 00,1976.

2. USSR author's certificate number 408791, cl. In 27 L1 / 00, 1972 (prototype).

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