Mobile Crusher Integrating Traveling Gear and Framework

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Solution Overview

Problem

Mobile crusher units face challenges due to their high mass and construction height, which increases maintenance needs and reduces adaptability, primarily because of the additional discharge conveyor and the need for a separate gyratory and swiveling unit.

Innovation Solution

The mobile crusher unit integrates the traveling gear with the supporting framework, eliminating the gyratory arrangement and combining the feed and dumping conveyors into a single unit, reducing height and weight, and using a unified crawler drive within the framework, allowing for a U-shaped and triangular supporting structure with swiveling capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If an additional discharge conveyor is installed downstream of the crusher, then the discharge and dumping functions are improved, but the mass of the mobile crusher unit increases significantly

Engineering Contradiction:
Improvedischarge and dumping functionsVSAvoidmass of mobile crusher unit
Core Design Contradiction:
Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The patent combines the discharge conveyor and dumping conveyor into a single integrated unit. The discharge conveyor serves dual purposes: it conveys crushed material to the discharge point and simultaneously performs the dumping function by being swingable in horizontal and vertical directions. This merging eliminates the need for a separate dumping conveyor, reducing the overall mass while maintaining both discharge and dumping capabilities.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The discharge conveyor is designed as a multi-functional component that performs both discharge and dumping operations. By making the conveyor swingable in multiple directions (horizontally up to 120° and vertically ±20°), it can adapt to different working conditions and perform multiple functions that would traditionally require separate dedicated components, thereby reducing the total mass of the system.

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

2Adaptability or versatility

If a gyratory arrangement between the traveling gear and supporting framework is implemented, then the mobile crusher unit can be relocated, but the construction height increases

Engineering Contradiction:
Improverelocation capabilityVSAvoidconstruction height
Core Design Contradiction:
Adaptability or versatilityVSLength of stationary object

Solution Approach 1:

The patent extracts and eliminates the gyratory arrangement from the system. Instead of using a separate gyratory mechanism between the traveling gear and supporting framework, the invention integrates the traveling gear directly with the supporting framework in a rigid connection. This removal of the gyratory component significantly reduces the construction height while maintaining the relocation capability through the crawler undercarriage.

Inventive Principle:
Principle #2Taking out (Extraction)

3Length of stationary object

If the traveling gear girder is merged with the supporting framework, then the construction height is reduced, but the structural complexity increases

Engineering Contradiction:
Improveconstruction heightVSAvoidstructural complexity
Core Design Contradiction:
Length of stationary objectVSDevice complexity

Solution Approach 1:

The traveling gear girder is merged with the supporting framework into a unified structural unit. This integration reduces construction height by eliminating the need for separate mounting structures and gyratory arrangements. While the merging increases structural complexity, it is offset by the elimination of other components (gyratory units, separate discharge conveyor), resulting in a net simplification of the overall system while achieving the goal of reduced height.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS7931221B2Mobile crusher unit
Publication Date: 2011.04.26 F L SMIDTH & CO AS
  • US7931221B2 patent drawing
  • US7931221B2 patent drawing
  • US7931221B2 patent drawing

AI summary

A mobile crusher unit is provided having a supporting framework (12) which is includes at least a crusher unit (13), a feed conveyor (11), and a dumping conveyor unit (14), and which can be relocated by means of a crawler undercarriage. To minimize construction height and weight the supporting framework and the traveling gear are configured as one unit, with parts of the supporting framework (12) serving as parts of the traveling gear, and with the crawlers (16) of the crawler vehicle protruding into recesses of the supporting framework.