Mechanical Arm Structural Layout for Higher Load-Bearing Capacity

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Solution Overview

Problem

Existing mechanical arms used for constructing buildings with glass curtain walls face challenges in load-bearing capacity, particularly when handling heavier materials, due to limitations in their structural design.

Innovation Solution

A mechanical arm with a rational structural layout comprising a base, main swing device, telescopic device, pitching device, and secondary swing device, where each component's load is optimized through positioning and reinforcement to reduce bearing loads, and the overall length is minimized using accommodating grooves and reinforcing plates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the mechanical arm uses a conventional structural design, then the structure is simple, but the load-bearing capacity is low

Engineering Contradiction:

Improveload-bearing capacityVSAvoidstructural complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The mechanical arm is divided into multiple functional modules: base, main swing device, telescopic device, pitching device, and secondary swing device. Each module independently performs specific functions, allowing the load to be distributed and managed separately, thereby improving load-bearing capacity without creating an unmanageably complex structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The telescopic device is arranged within the space between the main swing device and pitching device, with the main swing device embedded into an accommodating groove in the telescopic device. This nested arrangement optimizes space utilization and reduces the overall length of the mechanical arm while maintaining structural integrity and load-bearing capacity.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Strength

If the main swing device is positioned to drive the base perpendicularly to gravity direction, then the load on the main swing device is reduced, but the structural arrangement becomes more complex

Engineering Contradiction:

Improveload on main swing deviceVSAvoidarrangement complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The main swing device is positioned and oriented specifically to swing the base in a direction perpendicular to the gravity direction. This localized optimization at the main swing device reduces its load requirements, while the rest of the structure maintains conventional arrangements. The pitching device is positioned to avoid bearing the gravity of the main swing device and telescopic device, further optimizing load distribution.

Inventive Principle:

Principle #3Local quality

3Length of moving object

If the telescopic device and pitching device are arranged between the main swing device and secondary swing device, then the overall length is minimized, but the structural complexity increases

Engineering Contradiction:

Improveoverall length of mechanical armVSAvoidstructural arrangement

Core Design Contradiction:

Length of moving objectVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The mechanical arm utilizes multi-dimensional spatial arrangement by positioning devices not only along the length but also in vertical and lateral dimensions. The base includes longitudinal and transverse regulating plates that enable adjustment in multiple directions, optimizing the compactness of the overall structure.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS20260014696A1Mechanical arm with high load-bearing capacity

Publication Date: 2026.01.15 ZHEJIANG DINGLI MACHINERY CO LTD

AI summary

A mechanical arm with high load-bearing capacity includes a base used for installing an adsorption device, a main swing device, an telescopic device, a pitching device and a secondary swing device; the main swing device and the secondary swing device are used for driving the base to swing perpendicularly to a gravity direction; the secondary swing device is connected with the base; the telescopic device and the pitching device are arranged between the main swing device and the secondary swing device; one end of the telescopic device is connected with the main swing device, and the other end of the telescopic device is connected with the pitching device; and an end, far away from the telescopic device, of the pitching device is connected with the secondary swing device. The present disclosure optimizes the structural layout of the mechanical arm, and therefore the load-bearing capacity is improved effectively.