Design of a Lifting Robot for Repetitive Inter-Floor Material Transport with Adjustable Gravity Compensation

The construction of high-rise buildings necessitates efficient and reliable material transport systems to improve productivity and reduce labor-intensive tasks. Traditional methods such as cranes and elevators are widely used but are often constrained by high costs and spatial limitations. Manipulat...

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Main Authors: Byungseo Kwak, Seungbum Lim, Jungwook Suh
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Robotics
Subjects:
Online Access:https://www.mdpi.com/2218-6581/14/6/69
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author Byungseo Kwak
Seungbum Lim
Jungwook Suh
author_facet Byungseo Kwak
Seungbum Lim
Jungwook Suh
author_sort Byungseo Kwak
collection DOAJ
description The construction of high-rise buildings necessitates efficient and reliable material transport systems to improve productivity and reduce labor-intensive tasks. Traditional methods such as cranes and elevators are widely used but are often constrained by high costs and spatial limitations. Manipulator-based robotic systems have been explored as alternatives; however, they require complex control algorithms and struggle with confined construction environments. To address these challenges, we propose a lifting robot designed for repetitive inter-floor material transport in construction sites. The proposed system integrates a gear-connected double parallelogram linkage with a crank-rocker mechanism, enabling one-degree of freedom (1-DOF) operation for simplified control and precise positioning. Additionally, a spring-cable-based gravity compensation mechanism is implemented to reduce actuator torque, enhancing energy efficiency and structural stability. A prototype was fabricated, and experimental validation was conducted to evaluate torque reduction, positioning accuracy, and structural performance. Results demonstrate that the proposed system effectively minimizes driving torque, improves load-handling stability, and enhances overall operational efficiency. This study provides a foundation for developing automated lifting solutions in construction, contributing to reduced worker strain and increased productivity.
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spelling doaj-art-a01d5f2322104673bc4e123b183afc352025-08-20T03:27:32ZengMDPI AGRobotics2218-65812025-05-011466910.3390/robotics14060069Design of a Lifting Robot for Repetitive Inter-Floor Material Transport with Adjustable Gravity CompensationByungseo Kwak0Seungbum Lim1Jungwook Suh2Department of Robot and Smart System Engineering, Kyungpook National University, Daegu 41566, Republic of KoreaDepartment of Robot and Smart System Engineering, Kyungpook National University, Daegu 41566, Republic of KoreaDepartment of Robot and Smart System Engineering, Kyungpook National University, Daegu 41566, Republic of KoreaThe construction of high-rise buildings necessitates efficient and reliable material transport systems to improve productivity and reduce labor-intensive tasks. Traditional methods such as cranes and elevators are widely used but are often constrained by high costs and spatial limitations. Manipulator-based robotic systems have been explored as alternatives; however, they require complex control algorithms and struggle with confined construction environments. To address these challenges, we propose a lifting robot designed for repetitive inter-floor material transport in construction sites. The proposed system integrates a gear-connected double parallelogram linkage with a crank-rocker mechanism, enabling one-degree of freedom (1-DOF) operation for simplified control and precise positioning. Additionally, a spring-cable-based gravity compensation mechanism is implemented to reduce actuator torque, enhancing energy efficiency and structural stability. A prototype was fabricated, and experimental validation was conducted to evaluate torque reduction, positioning accuracy, and structural performance. Results demonstrate that the proposed system effectively minimizes driving torque, improves load-handling stability, and enhances overall operational efficiency. This study provides a foundation for developing automated lifting solutions in construction, contributing to reduced worker strain and increased productivity.https://www.mdpi.com/2218-6581/14/6/69lifting robotmaterial transportgravity compensationconstruction automationmechanical design
spellingShingle Byungseo Kwak
Seungbum Lim
Jungwook Suh
Design of a Lifting Robot for Repetitive Inter-Floor Material Transport with Adjustable Gravity Compensation
Robotics
lifting robot
material transport
gravity compensation
construction automation
mechanical design
title Design of a Lifting Robot for Repetitive Inter-Floor Material Transport with Adjustable Gravity Compensation
title_full Design of a Lifting Robot for Repetitive Inter-Floor Material Transport with Adjustable Gravity Compensation
title_fullStr Design of a Lifting Robot for Repetitive Inter-Floor Material Transport with Adjustable Gravity Compensation
title_full_unstemmed Design of a Lifting Robot for Repetitive Inter-Floor Material Transport with Adjustable Gravity Compensation
title_short Design of a Lifting Robot for Repetitive Inter-Floor Material Transport with Adjustable Gravity Compensation
title_sort design of a lifting robot for repetitive inter floor material transport with adjustable gravity compensation
topic lifting robot
material transport
gravity compensation
construction automation
mechanical design
url https://www.mdpi.com/2218-6581/14/6/69
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AT seungbumlim designofaliftingrobotforrepetitiveinterfloormaterialtransportwithadjustablegravitycompensation
AT jungwooksuh designofaliftingrobotforrepetitiveinterfloormaterialtransportwithadjustablegravitycompensation