Pump Exchange Set Removal Through a Motor Lantern Opening

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Solution Overview

Problem

The removal of replacement kits in pump devices, which are often required for maintenance and repair, is cumbersome and prone to causing impact damage and hand injuries due to the tight installation situation, necessitating a solution that is both easier and safer.

Innovation Solution

A mechanical or pneumatic transport device with a motorized or manual drive is used to guide the replacement kit along a longitudinal axis from its operating position to a removal position, allowing for partial or complete removal through a lateral opening in the motor lantern, thereby reducing manual handling and supporting the weight of the kit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual handling is used to remove the replacement kit from the motor lantern, then the operator can directly control the removal process, but the operator is exposed to impact damage and hand injuries due to the tight installation situation and heavy weight

Engineering Contradiction:

Improveease of removalVSAvoidimpact damage and hand injuries

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A transport device is introduced as an intermediary mechanism between the operator and the replacement kit. This device includes a transport element that engages with the replacement kit and a drive mechanism that moves the transport element along a guide element, thereby mediating the removal process and protecting the operator from direct contact with heavy components and potential hazards

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The manual mechanical handling system is replaced with an automated transport system. The drive mechanism, which can be motorized, hydraulic, or pneumatic, substitutes for manual muscular force, while guide elements provide structured pathways that control the movement and positioning of the replacement kit during removal and installation

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If the replacement kit is manually moved within the motor lantern, then the operator can position the kit accurately, but a lot of muscular force is required due to the tight installation situation and heavy weight

Engineering Contradiction:

Improveease of handlingVSAvoidmuscular force required

Core Design Contradiction:

Ease of operationVSForce

Solution Approach 1:

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The drive mechanism provides an opposing force that counteracts the weight of the replacement kit. By using motorized, hydraulic, or pneumatic actuation, the system generates sufficient force to lift and move heavy components without requiring the operator to exert muscular effort against gravity

Inventive Principle:

Principle #8Anti-weight (Counterweight)

3Object-affected harmful factors

If a transport device is introduced to automate the removal process, then the operator is protected from injuries and heavy lifting, but the device complexity increases

Engineering Contradiction:

Improveimpact damage and hand injuriesVSAvoidcomplexity of transport device

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The transport device is segmented into distinct functional components: a transport element that engages with the replacement kit, a drive mechanism that provides motion, and guide elements that define the path. This segmentation allows each component to be optimized independently and simplifies the overall system architecture

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The transport device is designed with multi-functionality to justify its complexity. It can handle different types of replacement kits, perform both removal and installation operations, and accommodate various drive mechanisms (motorized, hydraulic, or pneumatic), thereby providing a versatile solution that addresses multiple operational requirements

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20240369081A1Pump device and method for carrying out a service in a pump device

Publication Date: 2024.11.07 HERBORNER PUMPENFAB J H HOFFMANN

AI summary

A pump device has a drive motor, pump hydraulics, and a motor lantern, which is between the drive motor and the pump hydraulics, and an exchange set that can be guided through the motor lantern from an operating position to a removal position and can be removed from the removal position through a removal opening in the motor lantern. A transport device has a motor-operated/manual drive, wherein, the exchange set can be transported from the operating position to the removal position by the transport device. In a method for carrying out service in the pump device, a coupling member is released and the exchange set is moved from the operating position to the removal position by the motor-driven/manually driven transport device. The exchange set is guided through the removal opening in the motor lantern from the removal position into the other removal position to remove the exchange set.