Integrated Axle Shaft Assembly for Multi-Mechanism Power Transfer

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Solution Overview

Problem

Existing transmission shafts in vehicles have limited functionality and cannot meet the transmission requirements in complicated scenarios.

Innovation Solution

A shaft assembly with a connecting shaft comprising a first and second shaft segment connected by a connecting part with a mounting space for accommodating a driver, allowing a single power output end to drive multiple mechanisms, simplifying connections and reducing overall size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional transmission shaft with one end connected to a driver and the other end to the power output end is used, then the structure is simple, but the functionality is limited and cannot meet complicated transmission scenarios

Engineering Contradiction:
Improvetransmission functionalityVSAvoidshaft structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The transmission shaft is divided into a first shaft segment, a second shaft segment, and a connecting part. The connecting part includes a first shoulder connected to the first shaft segment, a second shoulder connected to the second shaft segment, and at least one connecting sub-part between the shoulders. This segmentation allows the shaft to accommodate multiple mechanisms while maintaining structural integrity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connecting part is designed with a mounting space capable of accommodating a driver, enabling the shaft assembly to serve multiple functions. The same shaft structure can connect to both the first mechanism (steering assembly) and the second mechanism (wheel assembly), providing universal applicability in complicated transmission scenarios.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple separate components are used to achieve complicated transmission scenarios, then the transmission functionality is improved, but the overall size and complexity increase

Engineering Contradiction:
Improvetransmission scenariosVSAvoidoverall size
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The first shaft segment, second shaft segment, and connecting part are merged into a single integrated shaft assembly. The connecting part with its mounting space consolidates multiple connection points and structural elements into one component, reducing the overall volume while maintaining the capability to handle complicated transmission scenarios.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The driver is accommodated within the mounting space of the connecting part, creating a nested arrangement where one component (driver) is housed within another (connecting part). This nesting reduces the overall size by eliminating the need for separate mounting structures and external connections.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Adaptability or versatility

If the connecting part includes multiple shoulders and connecting sub-parts, then the transmission connection capability is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improveconnection capabilityVSAvoidmanufacturing process
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The connecting part is segmented into distinct functional elements: the first shoulder for connecting to the first shaft segment, the second shoulder for connecting to the second shaft segment, and connecting sub-parts bridging the shoulders. This segmentation allows each element to be optimized for its specific function while maintaining ease of manufacturing through modular design.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4717578A1Axle components and vehicles
Publication Date: 2026.04.01 3KM PTE LTD
  • EP4717578A1 patent drawingFigure 1
  • EP4717578A1 patent drawingFigure 2
  • EP4717578A1 patent drawingFigure 3

AI summary

The present application provides a shaft assembly and a vehicle. The shaft assembly includes a connecting shaft that includes a first shaft segment, a second shaft segment, and a connecting part. The first shaft segment is configured to be in transmission connection with a first mechanism. The second shaft segment is configured to be in transmission connection with a second mechanism. The connecting part is located between the first shaft segment and the second shaft segment connects the first shaft segment and the second shaft segment. The connecting part is provided with a mounting space capable of accommodating a driver, and configured to be in transmission connection with the driver such that the connecting shaft transfers a power of the driver to the first mechanism and the second mechanism when the connecting part is driven by the driver to rotate. The shaft assembly and the vehicle provided in the present description can overcome the problem of limited functionality during transmission of the transmission shaft.