Pump Jack Roller System Centering via Tapered Flanges

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Solution Overview

Problem

Existing pump jack roller systems cause wear and require frequent replacement due to seam failures and offset mating issues, and they scrape against safety labels on the pole, making them complex and inefficient.

Innovation Solution

A roller system featuring a split lower roller with outward tapered flanges, a single middle roller without flanges, and a top roller with non-tapered flanges, which centralizes the pump jack on the pole, prevents label damage, and eliminates seam-related issues by using injection-molded super tough nylon rollers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If spacers or centralizing parts are placed on the internal sides of the brackets, then the pump jack is centered on the pole, but the safety label on the pole is scraped and becomes illegible

Engineering Contradiction:

Improvecentering of pump jackVSAvoiddamage to safety label

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The invention removes the harmful spacers or centralizing parts from the bracket's internal sides and replaces them with outwardly directed tapered flanges on the rollers. This extraction eliminates the source of label damage while maintaining the centering function through a different mechanism that does not contact the pole's surface.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The tapered flanges act as an intermediary element between the pump jack structure and the pole. Instead of using spacers that scrape the pole surface, the flanges provide centering through their geometric shape and orientation, mediating the positioning without direct harmful contact with the pole's safety label.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If traditional one-piece rollers are used, then the roller structure is simple, but seam failures and offset mating problems occur leading to frequent replacement

Engineering Contradiction:

Improveroller structureVSAvoidroller durability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The roller is divided into multiple segments or components, specifically incorporating a split lower roller with tapered flanges. This segmentation allows for more reliable construction without seams that could fail, while the modular design actually simplifies the overall structure by eliminating complex seam connections.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The roller system utilizes composite construction with tapered flanges integrated into the roller structure. This composite approach combines different functional elements (rolling surface and centering flanges) into a unified reliable structure that eliminates the offset mating problems of traditional single-piece rollers.

Inventive Principle:

Principle #40Composite materials

3Ease of operation

If rollers scrape against the pole surface, then the pump jack moves smoothly, but the rollers wear over time and require replacement

Engineering Contradiction:

Improvesmooth movementVSAvoidroller lifespan

Core Design Contradiction:

Ease of operationVSDuration of action of moving object

Solution Approach 1:

The invention extracts the harmful scraping action from the roller-pole interface by directing the tapered flanges outward. This eliminates the wear-causing contact while preserving the smooth movement function through the tapered flange geometry that guides the pump jack centrally without surface scraping.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention converts the potentially harmful scraping contact into a beneficial non-contact centering mechanism. The tapered flanges provide the centering function that previously required scraping, but do so without wear, transforming a harmful interaction into a harmless and durable solution.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 new roller system reduces maintenance needs, prevents label damage, and ensures smooth operation by centralizing the pump jack and eliminating seam-related problems, thereby extending the lifespan of the rollers and simplifying the pump jack's operation.

Implementation Method 1

the split lower roller includes a pair of facing lower rollers, each of the pair of facing lower rollers having an outward tapered flange

Methodology Applied

Scientific EffectGeometric constraint: Geometry

Implementation Method 2

using injection-molded super tough nylon rollers

Methodology Applied

Scientific EffectMaterial property:

Implementation Method 3

roller system...ensures smooth operation by centralizing the pump jack

Methodology Applied

Scientific EffectRolling friction: Friction

Data Source

PatentUS11459777B2Pump jack centering roller system

Publication Date: 2022.10.04 ALUM-A- POLE CORP

AI summary

A roller system including a top roller, a middle roller, a split lower roller and a split workbench roller configured for a pump jack arranged for travelling up and down a pole, wherein the top roller includes flanges at both ends of the roller; wherein the split lower roller includes a pair of facing lower rollers, each of the pair of facing lower rollers having an outward tapered flange; and wherein the split workbench roller includes a pair of facing workbench rollers, each of the pair of facing workbench rollers having an outward tapered flange.