Hose Pump Rotor with Adjustable Roller Arms

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Solution Overview

Problem

Hose pumps face challenges in maintaining optimal hose deformation and pumping efficiency due to varying hose elasticity over its lifespan, requiring adjustable roller positions to ensure consistent rolling force.

Innovation Solution

A hose pump rotor design featuring radially-displaceable roller support arms connected to a rotor base via locking components, allowing for adjustable roller positions to maintain consistent force on the hose, ensuring stable hose deformation and pumping efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the roller support arms are fixed on the rotor base, then the structure is simple and stable, but the roller position cannot be adjusted to accommodate varying hose elasticity

Engineering Contradiction:
Improveroller position adjustabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The roller support arms are designed to be radially displaceable relative to the rotor base, transforming a static fixed structure into a dynamic adjustable structure. This allows the roller position to be changed according to hose elasticity variations while maintaining structural simplicity through a straightforward displacement and locking mechanism.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The radial position parameter of the roller support arms can be changed by displacing them along the rotor base. This parameter adjustment enables adaptation to different hose elasticities, with the locking components ensuring stable positioning at selected adjustment points.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the roller position is not adjusted, then the structure is simple, but the pumping efficiency decreases due to inconsistent hose deformation

Engineering Contradiction:
Improvepumping efficiencyVSAvoidadjustment mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The roller support arms can be dynamically adjusted radially to optimize hose deformation at different operating stages. The locking components provide stable fixation at adjusted positions, enabling efficient pumping across varying hose elasticity conditions without complex control systems.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The adjustment mechanism allows operators to manually position the roller support arms at appropriate radial distances based on hose elasticity conditions. The locking components enable easy fixation at selected positions, making the system self-adaptable to different operating requirements without requiring complex automated control.

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If the roller support arms are made radially-displaceable, then the hose deformation can be controlled, but the manufacturing precision requirements increase

Engineering Contradiction:
Improveroller position precisionVSAvoidassembly difficulty
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The rotor assembly is segmented into the rotor base and multiple roller support arms that can be independently positioned and locked. This segmentation allows for precise radial positioning of each roller support arm while simplifying assembly, as each component can be adjusted and fixed independently rather than requiring precision in the entire assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The radial position parameter of the roller support arms can be precisely adjusted and locked at desired locations. The locking components provide reliable fixation that maintains manufacturing precision while allowing for easy adjustment during assembly and operation.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11384750B2Hose pump rotor
Publication Date: 2022.07.12 HEFEI HUAYUN MACHINERY MFG CO LTD
  • US11384750B2 patent drawing
  • US11384750B2 patent drawing
  • US11384750B2 patent drawing

AI summary

A hose pump rotor includes a main rotating shaft. The main rotating shaft includes a main shaft and a rotor base which are fixedly connected to each other, roller support arms are symmetrically arranged on the rotor base and outer ends thereof are connected to rollers, with axes of the rollers being parallel to an axis of the main shaft, the roller support arms and the rotor base form a radially-displaceable limiting fit, and the roller support arms and the rotor base form a locking fit. The rotor base includes a groove enclosed by a bottom plate and side plates disposed on opposite sides thereof, wherein the bottom plate is fixedly connected to the main shaft.