Walking Mechanism with Synchronous Wheels and Omni-Directional Drive
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Solution Overview
Problem
Conventional crawler moving mechanisms are ineffective on complex non-paved roads, uneven terrain, stairs, and obstacles, posing safety risks and difficulties in smooth turning, and often cause damage to surfaces.
Innovation Solution
A moving mechanism combining synchronous wheels of different diameters with a transmission track and omni-directional wheels, along with a forearm drive axle and electric push rods, allowing for adaptable movement on various surfaces and stairs, and a seat adjustment mechanism for balance and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a crawler moving mechanism with tank-like crawler assembly is used, then the ability to move on rough terrain and climb over obstacles is improved, but the danger of sudden fall when crossing protrusions increases
Solution Approach 1:
The crawler assembly is divided into multiple independent crawler units that can move and adjust independently. Each crawler unit can adapt to the terrain separately, preventing the entire mechanism from tipping when encountering protrusions or uneven surfaces.
Solution Approach 2:
The crawler assembly incorporates dynamic adjustment capabilities where the crawlers can change their position and configuration in real-time based on terrain conditions. This dynamic adaptation allows the mechanism to maintain stability when crossing protrusions by adjusting the crawler angles and positions.
2Ease of operation
If crawler moving mechanism turns on even running surface, then the ability to change direction is improved, but the surface damage caused by scratching increases
Solution Approach 1:
The crawler assembly uses flexible crawler belts that can conform to the surface and turn without rigid contact. These flexible crawlers can pivot and change direction while maintaining contact with the surface through friction and adhesion, rather than scratching it with hard edges.
Solution Approach 2:
The crawler design incorporates asymmetric contact surfaces and differential pressure distribution that allows smooth turning by creating different friction characteristics on opposite sides, enabling directional change without the need for aggressive surface engagement.
3Ease of operation
If conventional crawler moving mechanism is used, then the ability to move on smooth paved roads is improved, but the ability to move on complex non-paved roads deteriorates
Solution Approach 1:
The crawler assembly is designed with universal adaptability to function effectively on multiple surface types. The crawlers can adjust their engagement characteristics - providing smooth rolling contact on paved roads and increased grip and conformability on non-paved roads, making the same mechanism suitable for both smooth and rough terrain.
Solution Approach 2:
The crawler system can change its operational parameters such as speed, pressure distribution, and contact angle based on the detected terrain type. On smooth roads, the crawlers operate with lower pressure and higher speed, while on non-paved roads, they increase pressure and adjust contact to maximize traction.
Data Source
Figure 1a~1b
Figure 1c~2a
Figure 2b~3a
AI summary
The present invention discloses a moving mechanism including a support; a driving device mounted on the support; a controller arranged on the support; two sets of moving assemblies respectively mounted at two ends of the support; wherein each of the moving assemblies includes a track and two synchronous wheels of different diameters arranged inside the track, such that the moving mechanism could be functioned and run freely over stairs, rugged road surface and all-terrain ground under the action of the driving device and the controller. The present invention also discloses electric vehicles and toys equipping the moving mechanism. The moving mechanism of the present invention overcomes shortcomings of conventional moving mechanisms by making use of a breakthrough composite structure of a half-wheel-half-track configuration in combination with an additional omni-directional wheel, whereby the moving mechanism and the electric vehicles and toys equipping the same are adaptable to different road surfaces and stairs of various angles, and also very convenient and reliable to use.