Driving Wheel Layout With Perpendicular Motor for Compact Hub Assembly

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Solution Overview

Problem

Existing driving wheel designs require a larger hub to accommodate the driving motor, increasing assembly costs and inefficiently utilizing space.

Innovation Solution

A driving wheel design with a hollow wheel body and a shell-mounted motor, where the motor's output shaft is perpendicular to the axle, utilizing a transmission mechanism with worm and worm gear to change force direction and improve space utilization and assembly efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the driving motor is longitudinally assembled in the limit groove, then the motor can be installed in the hub, but the main body of the driving motor becomes large requiring a larger hub which increases assembly cost and reduces space utilization

Engineering Contradiction:
Improvemotor installationVSAvoidhub volume
Core Design Contradiction:
Ease of manufactureVSVolume of stationary object

Solution Approach 1:

The motor is reoriented from longitudinal assembly to transverse assembly, changing the installation dimension. The output shaft of the motor is arranged perpendicular to the axle, allowing the motor to be installed in the transverse direction rather than the longitudinal direction, thereby reducing the hub volume required

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

Solution Approach 2:

The motor and transmission mechanism are first installed in the shell, which is then installed in the wheel body. This nested installation approach allows for compact arrangement and reduces the overall space required in the hub

Inventive Principle:
Principle #7Nested doll (Nesting)

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 design reduces motor space occupation, enhances space utilization, and facilitates easier assembly by allowing the motor and transmission components to be installed within the shell before being integrated into the wheel body, improving transmission efficiency and stability.

Implementation Method 1

The transmission mechanism comprises a worm and a worm gear, the worm is arranged on the output shaft of the motor, and the worm gear is rotatably arranged in the shell and meshes with the worm

Methodology Applied
Scientific EffectWorm drive: Worm Drive

Data Source

PatentUS20260008332A1Driving wheel
Publication Date: 2026.01.08 ZHEJIANG LEICHEN INTELLIGENT TECHNOLOGY CO LTD
  • US20260008332A1 patent drawing
  • US20260008332A1 patent drawing
  • US20260008332A1 patent drawing

AI summary

A driving wheel comprises an axle, a wheel body, and a driving assembly. The wheel body is of a hollow structure and is rotatably arranged on the axle. The driving assembly comprises a shell, a motor, and a transmission mechanism. The shell is fixedly arranged on the axle and located in the wheel body, and the motor is fixedly arranged in the shell and connected to the wheel body by the transmission mechanism. An output shaft of the motor is arranged perpendicular to the axle, which can reduce the space occupied by the motor and improve space utilization.