Method for amelioration of forest fund areas

FIELD: lumbering industry, in particular, processes for amelioration of forest fund areas.

SUBSTANCE: method for amelioration of forest fund areas in compartment involves performing forestry-based, forestry cultivation, forestry amelioration practices; reconstructing young growth; providing swath and main logways; dividing compartment in diagonal lines into zones of fixation of united sub-compartments to compartment lines; laying swath logways perpendicular to compartment lines; forming main logways in the form of ellipses whose larger and smaller axes correspond in sizes to larger and smaller sides of compartment and with centers in compartment corners.

EFFECT: reduced damage to natural environment during logging of tree or tree length bundles, reduced labor intensity for wood logging from forest fund area.

1 dwg

 

The invention relates to the logging industry, in particular to methods for development of forest areas.

There is a way of development of forest areas in the block or group of blocks combined on the basis of similarities in terms of habitat identified in the patent No. 2175830, including all forestry, silvicultural and forest reclamation activities, the reconstruction of the young, characterized in that the block or group of blocks is divided into forest areas formed by combining units for conducting cuttings intermediate and main use. A quarter of its perimeter has quarterly cuttings to travel haulage transport, and the area, tending to them, have the shape of an isosceles triangle. Selected places the wood storage (loading area), which are timed to the edges of forest roads on the border of the quarter. Developing some areas of the forest, the tax separation or cutting area, and a set of forest plots, combined with consideration of forest types; as one of the portages are quarterly openings and existing logging roads, organized teams that conduct all of the logging and forest regeneration on the basis of a single underlying hardware and removable working organo is, organized common loading points.

The disadvantage of this method is that the presence on the territory of the area of forest roads, a rare factor. As a result, in most cases have to do the hauling wood only to quarterly glades, resulting in reduced availability of combined units and the increase in the average distance of the timber with the quarter. Main drawing dies, cut in the previous step in the quarter, can not always be used for the following methods of felling. At each reception of allotment, allotted to the bridge, will be different. There may be times when one or the other compartment adjacent to the quarterly clearing, does not need processing, bee-drawing dies on its territory are either absent or cannot be used for timber. This reduces the availability of allotments, adjoining the opposite side as hauling at the shortest distance from them to the logging road is impossible. In addition, quarterly development involves carrying out various works in the quarter, including reforestation. Site units of the reforestation may not be used for laying on their area of skidding transport in the subsequent techniques ru is OK in the quarter. With the existing way the zone of gravity of the combined units is limited by the diagonals of the quarter. Portages each zone of gravity are laid perpendicular to the quarterly clearing. Bee portages one zone perpendicular bee portages adjacent zones, which limits the ability to use roads adjacent to other logging roads, laid on the borders of the quarter. The area of such zones are large enough, and if it is impossible skidding timber remaining from the previous reception of cuttings in the quarter bee portages linking master of separation from the loading points, located on the block boundary, there is a need for gaskets or additional main tracks, crossing the existing bee drawing dies or strip dies, connecting apiary different zones of gravitation developed plots, but in the case of skidding on them the average distance transportation of timber harvest area will increase significantly and will decrease the performance of the machines involved in these operations. Thus, there is a situation where each time taking cuttings, each obstacle in the form of units, which cannot be skidding, there is a need of construction of new trunk roads cross existing transport routes that adversely affects the safety of the forest environment and performance logging equipment.

The closest in technical essence is a way, reflected in the patent No. 2234832, characterized in that the main drawing dies are laid along the diagonals of the quarter. The proposed location of the main roads you can use them with any combination of the developed areas within the developed area of the forest Fund. Zone of gravity of the combined units to the loading points are limited to the bisectors of triangles with vertices at the point of intersection of major roads, laid on the diagonal. Bee-drawing dies adjacent zones of gravity are a continuation of each other, which allows the hauling wood of the bee trail master units as quarterly fire trails and highways, laid on the diagonal of the block.

The disadvantage of the prototype is that the average distance transportation of timber to the loading points located on the boundary of the quarter, with zones of gravity adjacent to trunk roads, significantly more than the average skidding distances from areas adjacent to the quarterly glades, which leads to an increase in the average distance transportation of timber from the territory of the quarter and the increase in labor costs for its development. When hauling bundles or Khlystov hindered the spread of the pack when leaving the trelat the adjustment technique from the apiary on the trunk fiber, what can cause significant damage to the environment.

The goal of the proposed method of development of forest areas is to reduce the damage caused to the environment during the transportation of the packs of whips or trees, with regard to the reduction of labor costs for hauling wood from the developed area of the forest Fund.

The ultimate goal in the way of development of forest areas in the district, including forestry, reforestation, forest reclamation activities, the reconstruction of the young, the gasket bee and trunk roads, the quarter divided by diagonals into zones of gravity of the combined units to quarterly glades, which is perpendicular pave bee drawing dies, drawing dies and the main perform an arc shape in the form of plots ellipses, large and small axis of which is respectively higher and lower sides of the block, and with centers at the corners of the block.

Method development of forest areas represented in the drawing.

The method involves conducting forestry, silvicultural, forest reclamation activities, the reconstruction of the young, the gasket bee and trunk roads. The quarter consists of several sections, some of which needs to develop (not shown). Adjacent is idely, need to develop, integrate among themselves. The block is broken diagonals 1 in the zone of gravity of the combined units to quarterly glades 2. Bee-drawing dies 3 are laid perpendicular to the quarterly glades. Bee-drawing dies adjacent zones of gravity are a continuation of each other, which promotes the use of bee trail adjacent zones of gravity in the development of remote units. Main drawing dies 4 are arcuate in form of plots ellipses 5, the centers of which are located in the corners of the quarter, and the large and small axis of the ellipse, respectively, higher and lower sides of the quarter. Transportation of timber is carried out by loading points 6, located on the block boundary.

At different periods of development quarter ongoing after a few years, it is necessary to develop different sections. Depending on their location on the territory of the quarter in mastering it uses a variety dragging tracks laid in the scheme of development of forest areas, while for skidding timber selected drawing dies, allowing skidding with a minimum of labor and cost-intensive development of the joint sections. Bee portage and main, built according to the scheme of development of forest areas the CSO Fund, used repeatedly as a permanent transport network in all periods of the development of the quarter.

Method development of forest areas in the district, including forestry, reforestation, forest reclamation activities, the reconstruction of the young, the gasket bee and trunk roads, characterized in that quarter divided by diagonals into zones of gravity of the combined units to quarterly glades, which is perpendicular pave bee drawing dies, drawing dies and the main perform an arc shape in the form of plots ellipses, large and small axis of which is respectively higher and lower sides of the block, and with centers at the corners of the block.



 

Same patents:

FIELD: logging industry, in particular, processes for felling of forest stock.

SUBSTANCE: method involves felling forest stock on timber compartment restricted by compartment lines; providing main skid roads perpendicular to one another with intersection point at the center of compartment, with plots formed upon dividing of compartment by main skid roads into parts being rectangular. Joint sub-compartment attraction zones adjoining to main skid roads are formed as rectangular triangle defined by main skid roads and process corridor laid in parallel with straight line connecting leading points of main skid roads. Attraction zones adjoining to compartment lines are shaped as quadrangle defined by compartment line, main skid ride plot adjoining to said compartment line, process corridor and diagonal line of compartment. Swath roads of attraction zones adjoining to main skid roads are laid in parallel with process corridor, and swath roads of attraction zones adjoining to compartment boundary are laid perpendicular to nearby compartment lines.

EFFECT: reduced average distance for logging from compartment and, consequently, reduced labor costs associated with timber logging.

1 dwg

FIELD: forestry, in particular, execution of cutting works.

SUBSTANCE: method involves dividing cuttings into swaths with logways; felling trees on swaths using front-type felling-bunching machine and bunching trees onto workbench; laying out rounded plots at both sides of each swath logway, said rounded plots beginning on swath logway having radius equal to width of strip processed on felling-bunching machine, and center of each rounded plot being arranged in end point of rounded plot of adjacent swath logway which is curved with the same radius and center in end point of said rounded plot; felling workbench with apex oriented in direction opposite to tree logging direction, at an angle to swath logway; felling trees felled by felling-bunching machine during operation on rounded plots of swath logway so that tree apexes are laid onto logway and their butt parts are laid onto workbench.

EFFECT: increased width of swaths and reduced adverse effect of logging machines upon soil mantle.

2 dwg

FIELD: forestry.

SUBSTANCE: method involves determining, on the basis of description of crop, belonging of plot of specific crop to bilberry, mountain cranberry, long-moss or bog moss group of forest types and its age; determining basic wood increment of forest crop by sampling wood and bark using coring instrument and measuring diameters of 15-20 randomly selected trees; measuring thickness of their bark and thickness of wood samples consisting of 3-10 rings; calculating average thickness of annular rings for each tree; determining Q which is criterion for necessity of carrying out forestry practice from formula: Q =4ZA/(D-2B), where Z is annular radial growth (basic growth), mm; A is age of forest crop; D is diameter of trunk, mm; B is thickness of bark, mm. In case Q<1 and relative density is >07, cleaning cutting is provided, and in case there is no necessity in cleaning cutting of forest crop, soil is fertilized when forest crop belongs to bilberry or mountain cranberry group of forest types. In case forest belongs to long-moss or bog moss group of forest type, soil is drained and fertilized.

EFFECT: increased precision in determining the necessity of ameliorative practice and cleaning cuttings for crop forest, and reduced costs.

6 tbl, 4 ex

FIELD: forest industry, in particular, performing of cutting area works.

SUBSTANCE: method involves dividing cutting into plots, each of said plots being divided into swaths-triangles whose apex is defined by spar; laying swath logway in the mid portion of swath; dividing swaths into strips extending in parallel with swath logway; felling trees on strips; attaching trees or tree lengths felled onto strips adjoining to logway to working cable of rope unit; moving trees or tree lengths to spar and uncoupling from working cable; felling trees from strips remote from logway onto butt parts of trees or tree lengths felled onto strips adjoining to and positioned close to logway so that their axes coincide to maximum extent with one another; securing butt parts of trees or three lengths felled onto strips adjoining to and positioned close to logway with apex parts of trees or tree lengths felled onto strips remote from logway and using as guiding and supporting members during movement onto logway of number of trees or tree lengths secured with one another, with first of said trees or tree lengths felled onto strip adjoining logway being coupled to working cable of rope unit.

EFFECT: increased width of swath, reduced area for logways, reduced hazard to environmental nature during logging of wood, reduced number of movements performed by cable during forest operation, and increased efficiency of logging technique.

2 cl, 2 dwg

FIELD: forest industry.

SUBSTANCE: method involves dividing plots into swaths; providing logways; felling trees intended for cutting with their apexes oriented in logging direction, followed by logging thereof; performing thinning of semi-swaths by cutting corridors at an angle of 30-35 deg with respect to logway, with desired thinning extent being reached by providing corridors cut from adjacent logways. Corridors cut from adjacent semi-swaths intersect with one another to form plantation of mosaic structure where cells are defined by cut corridors. With employment of tree harvesting machines having load-bearing handler, 2-3 corridors are cut from one operating position, with 2 corridors from said 2-3 corridors being cut at an angle of 30-32 deg, and third additional corridor being cut perpendicular to logway. Working out of swath by intersecting corridors provides tree stand thinning without injuring of trees left for additional growing.

EFFECT: provision for creating of effective forest growing conditions and desired thinning extent without tree injuring.

2 cl, 3 dwg, 1 tbl

FIELD: forestry industry, in particular, cutting area works.

SUBSTANCE: method involves carrying out preparatory works; laying out main skid and swath roads for timber skidding; felling trees on swaths; bunching and skidding timber to loading points; laying out swath roads perpendicular to compartment line - haulage road, said swath roads adjoining to loading points located along part of compartment line - haulage road; laying out main roads perpendicular to compartment line and haulage road at distances equal to length of strip for collecting of wood bundle, said main roads adjoining loading points positioned along part of compartment line - haulage road parallel to swath roads.

EFFECT: reduced average timber skidding distance and increased efficiency of skidding machines.

3 cl, 1 dwg

FIELD: retention of unique dendrolara.

SUBSTANCE: method involves determining type of habitat and extent of development and suppression of unique plant; measuring height of unique plant and share of sector of free development of crown; optimizing phytocenosis medium within circular area in the center of which unique plant grows, with radius of circle being 1.05-1.2 of the average height of stock of trees; cutting off or banding only aboveground vitally active parts of tree competing with unique specimen, said parts being arranged in zone above maximally admissible height and values of which parts being determined for each competing tree from the formula: h=H.ex, where h is distance in vertical plane from horizontal plane extending through unique tree trunk base center to points through which cutting or banding plane of aboveground parts of competing tree is extending, or maximally admissible height of arrangement of vitally active parts of competing tree, m, said cutting-off or banding procedures being performed when h value is less than height of competing tree; H is height of tree, m; e is base of natural logarithm, e=2,718281828459...; x is variable factor for various unique kinds and types of habitat, determined from formula: where V is factor of availability of space for free crown development of unique tree in horizontal plane within concrete habitat, share of crown free development sector, said factor being determined by total value of sectors occupied with projections on horizontal plane of trees surrounding woody plant and sectors non-occupied with said crown projections; J is angle between vertical line and straight line extending from unique tree top onto point of projection of competing tree trunk base center on horizontal plane extending through unique tree trunk base center; a, b, c are coefficients whose values are selected from Table 1 where unique tree kinds and types and habitats are indicated or where a, b, c are coefficients whose values are selected from Table 2 where unique woody plant kinds and types and habitats are indicated.

EFFECT: provision for creating of phytocenosis optimum for unique woody plants, minimum damage and technological effects upon woody plant.

3 cl, 2 tbl, 2 dwg

FIELD: forestry industry, in particular, carrying-out of care cuttings in natural and artificial plantations.

SUBSTANCE: method involves separating biogroups with seed tree within territory; dividing territory into plots; forming processing corridors and cutting trees at both sides of said corridors; measuring distance between trees and their estimate coefficients within biogroups; calculating areas of remained biogroups; providing contour line of arrangement of biogroups; determining areas of seeding zones; marking plot of natural complex intended for renewal by uniform cutting of blocks to the right and to the left of processing corridors, with one-sided blocks worked out during one year being arranged at pitch equal to three, and similar blocks being arranged at opposite side with respect to processing corridor and being offset in staggered manner by one pitch.

EFFECT: intensified process for natural seeding renewal with valuable kinds of trees and reduced time for cutting of mature and overmature timber.

2 dwg

Top clipper // 2275007

FIELD: forestry and agricultural engineering.

SUBSTANCE: top clipper connected to hitched mechanism with power vehicle comprises bar with clipping tools rotated by drive, frame with guides, and movable columns mounted on carrier wheels and positioned in guides. Columns are retained by means of stops. Sections with clipping tools are mounted on transverse bar for displacement thereon and are retained by stops. Clipping tools are disposed in protective housings and made in the form of disk with toothed cutting edge. Disk cutting edge is defined by trapezium-shaped teeth with sides beveled toward side opposite to direction of rotation of front side and rear side normal to tangent of disk circle. Peripheral parts of teeth have sharpened portions on top side of disk, with teeth angles being formed rounded, and their peripheral part being formed circular with radius constituting 0.5-0.8 deg of disk radius. Said circle is drawn so that it tangentially and internally contacts disk circle from rear side of said tooth. Disk is positioned at an angle of 3-10 deg in relation to cutting plane, with apex of said angle being oriented toward vehicle advancement direction.

EFFECT: increased efficiency in clipping of seedling tops and improved quality of clipping seedling tops.

4 dwg

FIELD: forest industry, in particular, determination of effective dry forest range phytomass.

SUBSTANCE: method involves additionally determining available attrition stock and standardized conventional amount of rotten wood in each stock, with age being taken into account. Stock is determined without considering of bark and is corrected according to respective standardized conventional amount of rotten wood and average growth. Phytomass volumetric coefficient is defined and corrected for basic forest density.

EFFECT: increased precision in determining of ground phytomass of forest range.

FIELD: forest engineering.

SUBSTANCE: supporting-and-rotating apparatus has roller-type rotating support having lower immovable part rigidly fixed on frame of self-propelled chassis and equipped with toothed crown on its inner circumference. Rotating platform is rigidly fixed on upper movable part of support and handler is mounted on said platform. Rotation mechanism for rotating platform with handler in horizontal plane relative to frame of self-propelled chassis is also fixed on movable part of support. Platform rotation mechanism has engine and reducer with drive gear rigidly fixed on output shaft, said drive gear being meshed with toothed crown of immovable part. Device for shifting of cantilever of drive gear shaft is made in the form of U-shaped frame whose sides are extending in horizontal plane, have different lengths and are equipped with openings wherein drive shaft with drive gear is introduced through bearing units. U-shaped frame is joined with its longer side to rotating platform.

EFFECT: elimination of misalignment in drive gear and toothed crown teeth meshing to thereby enhance reliability and prolong service life of apparatus.

3 cl, 4 dwg

FIELD: logging industry, in particular, processes for felling of forest stock.

SUBSTANCE: method involves felling forest stock on timber compartment restricted by compartment lines; providing main skid roads perpendicular to one another with intersection point at the center of compartment, with plots formed upon dividing of compartment by main skid roads into parts being rectangular. Joint sub-compartment attraction zones adjoining to main skid roads are formed as rectangular triangle defined by main skid roads and process corridor laid in parallel with straight line connecting leading points of main skid roads. Attraction zones adjoining to compartment lines are shaped as quadrangle defined by compartment line, main skid ride plot adjoining to said compartment line, process corridor and diagonal line of compartment. Swath roads of attraction zones adjoining to main skid roads are laid in parallel with process corridor, and swath roads of attraction zones adjoining to compartment boundary are laid perpendicular to nearby compartment lines.

EFFECT: reduced average distance for logging from compartment and, consequently, reduced labor costs associated with timber logging.

1 dwg

FIELD: logging industry, in particular, processes for felling of forest stock.

SUBSTANCE: method involves felling forest stock on timber compartment restricted by compartment lines; providing main skid roads perpendicular to one another with intersection point at the center of compartment, with plots formed upon dividing of compartment by main skid roads into parts being rectangular. Joint sub-compartment attraction zones adjoining to main skid roads are formed as rectangular triangle defined by main skid roads and process corridor laid in parallel with straight line connecting leading points of main skid roads. Attraction zones adjoining to compartment lines are shaped as quadrangle defined by compartment line, main skid ride plot adjoining to said compartment line, process corridor and diagonal line of compartment. Swath roads of attraction zones adjoining to main skid roads are laid in parallel with process corridor, and swath roads of attraction zones adjoining to compartment boundary are laid perpendicular to nearby compartment lines.

EFFECT: reduced average distance for logging from compartment and, consequently, reduced labor costs associated with timber logging.

1 dwg

FIELD: timber industry, forestry.

SUBSTANCE: device can be used for laying-in fir-tree branches directly on felling area. Proposed device has frame, working member in form of drum on rod of which plates with cutting edges are freely mounted. Plates are made in form of hammers, free end of each hammer being provided with parabolic cutting edge. Hammers are mounted on drum rods in staggered order.

EFFECT: improved quality of fir-tree branches.

3 dwg

FIELD: forestry, in particular, execution of cutting works.

SUBSTANCE: method involves dividing cuttings into swaths with logways; felling trees on swaths using front-type felling-bunching machine and bunching trees onto workbench; laying out rounded plots at both sides of each swath logway, said rounded plots beginning on swath logway having radius equal to width of strip processed on felling-bunching machine, and center of each rounded plot being arranged in end point of rounded plot of adjacent swath logway which is curved with the same radius and center in end point of said rounded plot; felling workbench with apex oriented in direction opposite to tree logging direction, at an angle to swath logway; felling trees felled by felling-bunching machine during operation on rounded plots of swath logway so that tree apexes are laid onto logway and their butt parts are laid onto workbench.

EFFECT: increased width of swaths and reduced adverse effect of logging machines upon soil mantle.

2 dwg

FIELD: processing of sawn wood during stocking and merchandising, in particular, during selective or sanitary removal of trees.

SUBSTANCE: machine has self-propelled platform, cabin, telescopic handler with gripping-cutting and pushing-through devices, additional telescopic boom and sawing device connected to sorting out device, accumulating hopper and control system, with each of mentioned parts of machine being mounted on self-propelled platform. Self-propelled platform has pressing-bunching device arranged in mid portion of platform and additional accumulating hopper extending in parallel with main accumulating hopper, in rear zone of platform. Main and additional accumulating hoppers are equipped with gripping longitudinal devices. Telescopic handler is equipped with sanding-grinding device axially aligned with pushing-through device and connected through pneumatic pipeline with pressing-bunching device. Sawing device is mounted on telescopic handler and kinematically connected with pushing-through device. Additional telescopic boom is equipped with grubber furnished with individual drive, and additional sorting-out device mounted at its end made in the form of at least one grip and connected with telescopic handler through control system. Sawing device mounted on telescopic handler is furnished with set of perpendicularly arranged saws. Additional telescopic boom is equipped with grinder connected to pressing-bunching device.

EFFECT: improved ecological situation within tree processing zone, improved quality of wood material, reduced wood losses and timber wastes, increased versatility of logging process, reduced consumption of power and time for wood processing and forest reclamation at the place of sawn trees owing to employment of a combination of processes and small-sized maneuverable equipment.

3 cl, 5 dwg

FIELD: processing of sawn wood during stocking and merchandising, in particular, during selective or sanitary removal of trees.

SUBSTANCE: machine has self-propelled platform, cabin, telescopic handler with gripping-cutting and pushing-through devices, additional telescopic boom and sawing device connected to sorting out device, accumulating hopper and control system, with each of mentioned parts of machine being mounted on self-propelled platform. Self-propelled platform has pressing-bunching device arranged in mid portion of platform and additional accumulating hopper extending in parallel with main accumulating hopper, in rear zone of platform. Main and additional accumulating hoppers are equipped with gripping longitudinal devices. Telescopic handler is equipped with sanding-grinding device axially aligned with pushing-through device and connected through pneumatic pipeline with pressing-bunching device. Sawing device is mounted on telescopic handler and kinematically connected with pushing-through device. Additional telescopic boom is equipped with grubber furnished with individual drive, and additional sorting-out device mounted at its end made in the form of at least one grip and connected with telescopic handler through control system. Sawing device mounted on telescopic handler is furnished with set of perpendicularly arranged saws. Additional telescopic boom is equipped with grinder connected to pressing-bunching device.

EFFECT: improved ecological situation within tree processing zone, improved quality of wood material, reduced wood losses and timber wastes, increased versatility of logging process, reduced consumption of power and time for wood processing and forest reclamation at the place of sawn trees owing to employment of a combination of processes and small-sized maneuverable equipment.

3 cl, 5 dwg

FIELD: processing of sawn wood during stocking and merchandising, in particular, during selective or sanitary removal of trees.

SUBSTANCE: machine has self-propelled platform, cabin, telescopic handler with gripping-cutting and pushing-through devices, additional telescopic boom and sawing device connected to sorting out device, accumulating hopper and control system, with each of mentioned parts of machine being mounted on self-propelled platform. Self-propelled platform has pressing-bunching device arranged in mid portion of platform and additional accumulating hopper extending in parallel with main accumulating hopper, in rear zone of platform. Main and additional accumulating hoppers are equipped with gripping longitudinal devices. Telescopic handler is equipped with sanding-grinding device axially aligned with pushing-through device and connected through pneumatic pipeline with pressing-bunching device. Sawing device is mounted on telescopic handler and kinematically connected with pushing-through device. Additional telescopic boom is equipped with grubber furnished with individual drive, and additional sorting-out device mounted at its end made in the form of at least one grip and connected with telescopic handler through control system. Sawing device mounted on telescopic handler is furnished with set of perpendicularly arranged saws. Additional telescopic boom is equipped with grinder connected to pressing-bunching device.

EFFECT: improved ecological situation within tree processing zone, improved quality of wood material, reduced wood losses and timber wastes, increased versatility of logging process, reduced consumption of power and time for wood processing and forest reclamation at the place of sawn trees owing to employment of a combination of processes and small-sized maneuverable equipment.

3 cl, 5 dwg

FIELD: forestry industry, possibly equipment for crosscutting trimmed logs by assortments.

SUBSTANCE: universal manipulator for wooden raw material includes arranged on hydraulic lifting mechanism: rotary beam supporting pulling-through mechanism, clamping and cutting apparatus with two heads mounted in ends of telescopes and hydraulic equipment. Hydraulic hoisting mechanism is mounted with possibility of rotation by action of hydraulic cylinder in lengthwise directions of rotary beam. Rod of hydraulic cylinder in its initial position is extended by its half.

EFFECT: increased speed of pulling-through and orienting of trimmed logs and trees, enhanced efficiency, enlarged manufacturing possibilities of manipulator.

1 dwg

FIELD: forestry, in particular, stocking and piling of limbs and conifer branches in cleaning or final cuttings.

SUBSTANCE: method involves alternatively directing gripping mechanism with delimbing devices to selected tree; gripping tree; cutting-off and accumulating limbs; cutting limbs and/or coniferous branches sequentially in clusters during synchronous rotation of cutting and receiving devices around tree trunk; placing limbs and/or coniferous branches so that they are oriented along radius of rotation of receiving devices.

EFFECT: reduced limb and branch losses, increased efficiency in utilization of forest stand biomass and increased operating capacity.

FIELD: timber industry, forestry.

SUBSTANCE: invention relates to manipulator-type loggers, namely, to their slewing circles. In proposed slewing circuit with inclined design leveling device turntable is mounted on frame of self-propelled chassis for tilting forward and backward under action of hydraulic cylinders which are installed in X-like manner, viewing from side, and are hinge-connected to leveling device. Front and rear surfaces of leveling device in contact with frame are made to the same radius of turning as inner surfaces of frame. Stops are rigidly installed on upper surface of frame before and after leveling device. Rear surface of front stop and front surface of rear stop form angles of 90o plus angle of tilting of leveling device with upper horizontal surface of frame. Proposed design of slewing circle makes it possible to tilt turntable forward and backward, and X-shape arrangement of hydraulic cylinders provides reduction of height of device and contact of leveling device and frame over surface improves reliability.

EFFECT: reduced height of device, improved reliability in operation.

3 cl, 2 dwg

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