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Method and apparatus in a forest unit of work

A work unit and forest technology, applied in the field of power supply of forest work units, can solve the problems of large power peaks, difficulty in meeting new emission regulations, unbalanced engine load, etc., and achieve the effect of reducing power loss

Active Publication Date: 2018-07-17
PONSSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Post-felling treatments such as sawing tree trunks, for example, are especially of such a nature that a slowdown of function can lead to significant losses in the form of so-called cutting defects
Such defects often result, for example, when the sawing speed remains insufficient in a cross-cut saw and when the point at which the log is cut is subjected to a large bending moment when the log is supported with one end of the log free, This large bending moment can lead to so-called harvest damage on the part of the timber
On the other hand, meeting the new emissions regulations is even more difficult if the engine is very unevenly loaded with large and rapid power spikes

Method used

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  • Method and apparatus in a forest unit of work
  • Method and apparatus in a forest unit of work
  • Method and apparatus in a forest unit of work

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Embodiment Construction

[0023] The following preferred embodiments are described by illustrating some preferred embodiments of the present solution with reference to the aforementioned drawings. The solution may thus comprise method steps and / or structural components which are indicated by reference numerals in the figures and referenced by corresponding reference numerals in the present description. For the sake of clarity, not all mutually corresponding elements are always numbered in the drawings, but only one or a part thereof may be numbered.

[0024] figure 1 is a schematic side view of a forest work unit, in this case a harvester. The forest working unit 1 may comprise, for example, a frame 5, a boom assembly 2, a control room 3, a main power source 4 and an appropriate number of wheels, tracks, bogies, track assemblies or other structures necessary for moving the machine and known per se Part 9, wherein the frame 5 comprises at least one frame part. The boom assembly 2 may comprise one or ...

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Abstract

A method and apparatus in a forest work unit comprising storing power generated by a primary power source in an energy storage device during at least a first phase of a work cycle of a forest work unit by controlling a hydraulic pump motor to At least some of the power generated by the primary power source is converted into hydraulic power; and stored in the energy storage device by supplying the hydraulic power to the energy storage device. At least one second phase of a work cycle of the forest work unit includes supplying stored power from the energy storage device for driving at least one implement.

Description

Background technique [0001] The present invention relates to forestry work units and in particular to power supplies for forestry work units. [0002] Various forest working units such as forwarders and harvesters are known for performing mechanized harvesting. Typically, a forest working unit comprises a chassis, which may contain one or more frame parts and is equipped with wheels or tracks and is movable over a certain terrain. Such chassis are often provided with at least a control compartment and appropriate tools. Such a tool may for example be formed by a jib assembly, such as a crane or loader. One end of the boom assembly may be provided with processing equipment supported by the boom assembly and used to perform processing procedures on timber harvested from the forest. [0003] At one end of the boom assembly provided in the harvester, various harvester heads capable of handling tree trunks in a versatile manner are moved and used. Such a harvester head can be u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G23/00F15B1/02
CPCF15B1/024F15B21/14F15B2211/20546F15B2211/20569F15B2211/20576F15B2211/212F15B2211/88Y02E60/16A01G23/00Y02A40/28F15B1/04F15B11/08F15B13/0401F15B2211/2053F15B2211/405F15B2211/625F15B2211/70
Inventor 米科·埃尔基莱卡勒·埃诺拉
Owner PONSSE