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Photovoltaic cells with improved backsheet

A crawler walking device and forestry machinery technology, which is applied to agricultural machinery equipment, forestry, crawler vehicles, etc., can solve problems such as unfavorable installation angles and lagging angles, unevenness, and reduced ability of forestry machinery to move forward

Active Publication Date: 2016-12-14
PONSSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In contrast, rigid crawler units are very rigid on the ground and do not follow uneven ground
In addition to the above-mentioned problems, this structure has the problem that due to the geometry of the endless belts of the track, it has an unfavorable installation angle and a lag angle, which reduces the performance of the forestry machine on difficult ground, especially in thick snow or snow. Ability to advance on deep, soft ground and when encountering obstacles with abrupt and steep edges, such as rocks or tree stumps

Method used

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  • Photovoltaic cells with improved backsheet
  • Photovoltaic cells with improved backsheet
  • Photovoltaic cells with improved backsheet

Examples

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Embodiment Construction

[0056] Fig. 1 shows a forestry machine 10 according to the prior art, which may be a forestry tractor according to the figures, for collecting felled trees and transporting them out of the forest. The forestry machine 10 according to the prior art is supported on the ground by means of bogie wheels 11 on bogie axles, wherein on each bogie axle there are preferably two drive wheels with pneumatic rubber tires. However, rubber tires are expensive constructions with very limited flexibility due to the high pressures used in them. The purpose of using high pressure is to try to ensure sufficient load capacity even when the forestry machine is fully loaded. Consequently, the forestry machine 10 can cause high surface pressure on the ground, thereby damaging the ground. The driving force of the forestry machine 10 according to FIG. 1 is obtained from an engine 17 from which power is transmitted to the respective Wheels pass. This construction requires each wheel to have a separat...

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Abstract

The invention relates to a modular crawler-track unit for a forest machine, which crawler-track unit (14) includes - a crawler-track frame (16), a sleeve axle (77), for supporting the crawler-track frame in the forest machine, a crawler mat (18) arranged in a circulation, at least one drive wheel (20) mounted in bearings in the said crawler-track frame (16), at least one idler wheel (23) mounted in bearings in the said crawler-track frame (16), support means (25), which are arranged to conform according to the shape of the surface of the ground, in order to distribute the surface pressure of the crawler-track unit (14) evenly, and a drive shaft (60) mounted in bearings in the said crawler-track frame (16). The crawler-track unit (14) further includes - a shaft (80) mounted in bearings on the crawler-track frame (16) for pivoting the said drive wheel (20) to the crawler-track frame (16) at a distance from the drive shaft (60), and power-transmission means (41) fitted between the said shaft (80) and the drive shaft (60) for transmitting power from the drive shaft (60) to the drive wheel (20). The invention also relates to a corresponding forest machine.

Description

technical field [0001] The invention relates to a modular crawler unit for forestry machines, the crawler unit comprising: [0002] - crawler running gear frame; [0003] - a quill attached to the crawler frame for supporting the crawler frame on a pivot bearing belonging to said forestry machine; [0004] - track shoes arranged as endless belts for distributing the surface pressure of the tracked running gear unit; [0005] - at least one drive wheel mounted in a bearing in the track running gear frame inside the endless belt of the track shoe for turning and supporting the track shoe; [0006] - at least one idler wheel mounted in a bearing in the track running gear frame inside the endless belt of the track shoe for supporting the track shoe; [0007] - a support mechanism arranged in the crawler running gear frame, inside the endless belt of the track shoe, for supporting that part of the endless belt against the ground, which supporting mechanism is arranged to adapt t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D55/12B62D55/065B62D55/04A01G23/00
CPCB62D55/065B62D55/12Y02P60/12B62D55/02B62D55/04B60G2206/011B62D55/08B62D55/104A01G23/00
Inventor K·埃诺拉P·胡卡宁J·许沃宁
Owner PONSSE
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