Snowplow Planetary Drive Replacing Pulleys for Compact Auger Transmission

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Solution Overview

Problem

Conventional snowplows face issues with large size, low transmission efficiency, and flexibility due to pulley mechanisms, leading to energy waste and reduced endurance in icy and snowy conditions.

Innovation Solution

A snowplow design integrating a motor with a planetary reducer, utilizing a compact planetary gear system to reduce size and improve flexibility, with a transmission structure that includes a sun gear, planetary carrier, and ring gear, enhancing efficiency and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If a pulley mechanism is used for transmission, then the snowplow can achieve basic transmission function, but the device size becomes large and transmission efficiency is low

Engineering Contradiction:
Improvetransmission efficiencyVSAvoiddevice size
Core Design Contradiction:
Loss of energyVSVolume of moving object

Solution Approach 1:

The patent replaces the traditional pulley mechanical transmission system with a planetary reducer mechanism. This substitution eliminates the need for belts and pulleys, achieving more compact structure with higher transmission efficiency through direct gear meshing between the motor output shaft and the planetary gear system.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent integrates the motor and planetary reducer into a unified transmission system where the motor output shaft directly connects to the planetary reducer input. This merging of components eliminates intermediate transmission elements like belts and pulleys, reducing overall device size while improving transmission efficiency through direct power transfer.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If a pulley mechanism is used, then the snowplow structure is simpler to implement, but the flexibility and endurance are reduced

Engineering Contradiction:
ImproveflexibilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The planetary reducer is divided into distinct functional segments: sun gear, planetary gears, planetary carrier, and ring gear. This segmentation allows each component to be optimized for specific functions while maintaining overall compactness, improving flexibility without excessive complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The planetary gear system utilizes three-dimensional spatial arrangement with gears positioned at different radial and axial levels. This dimensional optimization allows compact power transmission in limited space, enhancing flexibility while controlling structural complexity through efficient space utilization.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The integration of a planetary reducer with the motor reduces the size and number of parts, improves flexibility, and enhances transmission efficiency, ensuring effective snow clearing with reduced energy waste and increased endurance.

Implementation Method 1

The planetary reducer includes a sun gear, a planetary carrier, a planetary gear and a ring gear, the sun gear is fixed to the output shaft of the motor, the planetary carrier is rotatably connected with the outer housing, the ring gear is fixedly connected with the outer housing, the planetary gear is rotatably connected with the planetary carrier, the planetary gear is respectively meshed with the sun gear and the ring gear

Methodology Applied
Scientific EffectPlanetary gear mechanism: Gear

Data Source

PatentEP4582634A1Snow plow
Publication Date: 2025.07.09 GLOBE (JIANGSU) CO LTD
  • EP4582634A1 patent drawingFigure 1~2
  • EP4582634A1 patent drawingFigure 3~4
  • EP4582634A1 patent drawingFigure 5~6

AI summary

A snowplow (100) includes a housing (10), an auger assembly (20) and a driving assembly (30). The housing (10) is provided with an opening. The auger assembly (20) is installed in the housing (10). The driving assembly (30) is installed on an outer side of the housing (10), and the driving assembly (30) includes a motor (31) and a planetary reducer (32). A power input end of the planetary reducer (32) is connected with an output shaft (311) of the motor (31), and a power output end of the planetary reducer (32) is connected with the auger assembly (20) through a transmission structure. The motor (31) and the planetary reducer (32) are integrated in a same outer housing (33).