Rear Snow Milling Box With Angled Actuator for Uniform Snow Pickup
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Solution Overview
Problem
Existing rear-mounted snow groomers lack the ability to achieve a high-quality processed snow slope surface due to inefficiencies in snow pickup and distribution, leading to uneven snow grain sizes and incomplete processing.
Innovation Solution
A rear-mounted milling machine with a linearly adjustable actuator positioned at an angle to the direction of travel, allowing for a skimming action that deflects snow into the milling box and ensures uniform snow grain sizes by creating a direct relationship between actuator adjustment and snow pickup, with a flat shield for scooping and redirecting snow perpendicular to the direction of travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional milling box with fixed housing wall is used, then the structure is simple, but the snow pickup is uneven and processing quality is poor
Solution Approach 1:
The housing wall is transformed from a fixed structure to a dynamically adjustable one using a linear actuator. The actuator enables the housing wall to move between a first position for pickup and a second position for processing, allowing the system to adapt to different snow conditions and achieve uniform snow grain sizes through controlled positioning changes.
Solution Approach 2:
The patent changes the positional parameter of the housing wall from fixed to variable. By controlling the linear actuator's displacement, the housing wall can be positioned at different locations relative to the milling shaft, optimizing the pickup and processing of snow to achieve uniform grain sizes and improve overall processing quality.
2Quantity of substance
If the housing wall is extended forward to improve snow pickup, then more snow is captured, but the actuator adjustment range is limited
Solution Approach 1:
The linear actuator is positioned at an angle to the direction of travel, allowing it to be displaced in a plane inclined relative to vertical. This angular positioning enables the actuator to extend the housing wall forward in the pickup position and retract it in the processing position, effectively increasing the snow pickup amount while maintaining full adjustment range through multi-dimensional movement.
3Reliability
If the linear actuator is positioned vertically, then adjustment is simple, but snow deflection into the milling box is unreliable
Solution Approach 1:
The linear actuator is positioned asymmetrically at an angle to the direction of travel rather than vertically. This asymmetric positioning creates a skimming action that reliably deflects snow from the surface into the milling box. The angled configuration ensures consistent snow engagement and deflection, improving reliability while the linear actuator mechanism maintains ease of operation through simple linear displacement control.
Data Source
Figure 1~2
AI summary
1. Rear-mounted snow groomer 2.1 A rear-mounted snow groomer, which can be attached to the rear of a snow groomer in towing mode, with at least one milling shaft rotatably arranged in a milling box which has a housing wall surrounding the milling shaft in an arc, and with a finisher arrangement arranged behind the milling box to compact and smooth a groomed snow surface, wherein an actuating element is assigned to the milling box behind the milling shaft, which can be moved between a functional position extending the housing wall and a release position, is known. 2.2 According to the invention, the actuating element is designed as a linearly adjustable actuator, and the linear actuator is arranged inclined on the milling box opposite to a towing direction such that the linear actuator can be moved in a plane that is inclined relative to a vertical opposite to the towing direction. 2.3 Use for snow groomers for snow surface preparation and shaping.