Mobile Forestry Machine Winch Cable Routing
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Solution Overview
Problem
Existing mobile forestry machines face inefficiencies in cable winch force flow and component arrangement, leading to limited performance and unfavorable force distribution, particularly due to the routing of cables under and behind the drive motor.
Innovation Solution
The mobile forestry machine is designed with the drive motor at the front, the cable winch adjacent to it, and the stanchion adjacent to the winch, allowing the cable to be routed directly from the winch to a cable outlet between the motor and stanchion, optimizing force flow and performance. Additionally, a winch tower with force-transmitting struts connects the winch to the chassis, and components are arranged in insulated compartments for noise and thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cable winch is arranged at the front of the vehicle in front of the drive motor, then the cable can be positioned for tree felling operations, but the cable must be routed underneath the drive motor and deflected upwards on a deflection roller, leading to unfavorable force flow and limited winch performance
Solution Approach 1:
The patent applies dimensionality change by routing the cable through the partition wall in a different spatial dimension rather than underneath the drive motor. The cable outlet is positioned in the partition wall between the drive motor and stanchion, allowing the cable to exit laterally rather than vertically upward through a deflection roller, thus changing the force flow path from unfavorable to favorable.
2Volume of moving object
If the support is arranged between the drive motor and the cable winch, then component compactness is achieved, but the winch cable must be routed to the rear of the vehicle and deflected multiple times, leading to unfavorable force flow
Solution Approach 1:
The patent extracts the cable deflection function from the intermediate support structure and relocates it to the partition wall area. By positioning the cable outlet in the partition wall between the drive motor and stanchion, the cable routing is simplified to a direct path without multiple deflections, thus extracting the harmful force flow path while maintaining compact component arrangement.
3Volume of moving object
If the drive motor is arranged with longitudinal axis in the transverse direction, then compact vehicle dimensions are achieved, but the drive motor and hydraulic pumps generate noise and heat that affect the operating environment
Solution Approach 1:
The patent applies local quality by providing thermal and acoustic insulation specifically in the engine compartment where the drive motor and hydraulic pumps are located. The insulated engine compartment creates a localized barrier that contains noise and heat generation at the source, while the rest of the vehicle maintains its compact dimensions with the transverse drive motor arrangement.
Data Source
Figure 1
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Figure 4~5
AI summary
The invention relates to a mobile forestry machine (1) equipped with a chassis (2), a drive motor (3), a winch (4), a stake (5), and an adjustable ramp blade (6), wherein the forestry machine (1) does not have a driver's workstation for an operator. Viewed in the longitudinal direction (L) of the vehicle, the drive motor (3) is located at the front, the winch (4) is adjacent to the drive motor (3), the stake (5) is adjacent to the winch (4), and the adjustable ramp blade (6) is located at the rear of the vehicle.