Excavator Vibratory Compactor with Isolated Hydraulic Housing

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Solution Overview

Problem

Conventional vibratory compactors used with excavator type vehicles are limited in capability due to exposed hoses and cyclic up and down motions, which restrict their ability to apply extra forces and protect hydraulic components from damage, preventing effective compaction and material handling.

Innovation Solution

A vibratory compactor design featuring a frame with mounting brackets, a hydraulic vibration generation device, and a housing with isolators and control members, which protects hydraulic hoses and fittings from damage and allows for controlled movement and force application, enabling effective compaction and material handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional hydraulic plate compactors are used with excavators, then the compactor can be powered by hydraulic motors, but the exposed hoses and fittings are vulnerable to damage and the compactor cannot effectively apply extra forces

Engineering Contradiction:

Improveprotection of hydraulic componentsVSAvoidstructural complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The frame is nested within the housing, creating a protective enclosure for the hydraulic components. The housing serves as an outer shell that shields the inner frame and hydraulic hoses from external damage, while the frame remains functional within this protective structure.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The compactor is divided into distinct functional segments: the housing for protection, the frame for structural support and vibration transmission, and the compactor plate for compaction. This segmentation allows each component to be optimized for its specific function while working together as an integrated system.

Inventive Principle:

Principle #1Segmentation

2Force

If the compactor plate performs rapid up and down motions, then compaction force is applied to the material, but the amplitude and weight limitations restrict the ability to apply extra forces

Engineering Contradiction:

Improvecompaction forceVSAvoidcapability to handle different materials and conditions

Core Design Contradiction:

ForceVSAdaptability or versatility

Solution Approach 1:

The control members enable dynamic adjustment of the housing's position relative to the frame, allowing the system to adapt between different operational modes: free vibration for standard compaction and constrained position for applying additional static force, providing versatility for different material conditions.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The housing serves multiple functions: it protects hydraulic components from damage, provides a mounting structure for control members, and can transmit additional force to the compactor plate when constrained by control members, making the system versatile for various compaction needs.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Stability of the object's composition

If the housing is rigidly fixed to the frame, then structural stability is improved, but the hydraulic components become vulnerable to damage from vibrations and external forces

Engineering Contradiction:

Improvestructural stabilityVSAvoidvibration damage to hydraulic components

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The isolators are installed beforehand between the housing and frame to cushion against vibrations and shocks before they can reach the hydraulic components. This protective measure is built into the structure, preventing damage before it occurs.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

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 enhances the capability of vibratory compactors by protecting hydraulic components, allowing for efficient compaction and material handling, including scraping and compacting in confined spaces like ditches, while preventing damage and maintaining operational integrity.

Implementation Method 1

a housing having a front member and a rear member coupled to the frame by at least one isolator

Methodology Applied

Scientific EffectVibration isolation: Damping

Implementation Method 2

a hydraulic vibration generation device coupled to the compactor plate within the inner space of the frame

Methodology Applied

Scientific EffectHydraulic actuation: Hydraulic Press

Data Source

PatentUS11447922B2Vibratory compactor

Publication Date: 2022.09.20 CURREY ALBERT BEN

AI summary

A vibratory compactor is provided. The vibratory compactor may include a compactor plate, a frame coupled to the compactor plate, wherein the frame may include an inner space and a housing. The frame may include a plurality of mounting brackets coupled between a first side member and a second side member of the frame. The vibratory compactor may include a vibration generation device coupled to the compactor plate within the inner space of the frame. The vibratory compactor may include a plurality of isolators, each isolator coupled to one mounting bracket of the plurality of mounting brackets. The housing may be coupled to the plurality of isolators, wherein the housing may include couplers removably coupled to a top surface of the housing. The couplers may be configured for coupling the vibratory compactor to an excavator type vehicle.