Aiming at the existence of a large number of dangerous and complex underground culverts in the city, which make it inappropriate or impossible for human beings to enter, it is of great significance to develop mobile robots with multi-terrain adaptive characteristics to realize the tasks of material handling and equipment inspection in the culverts. 2-PRU/UPR parallel mechanism was proposed. The 3D model of the 2-PRU/UPR mechanism was constructed by SolidWorks software. The degree-of-freedom characteristics of the 2-PRU/UPR mechanism were solved based on the constraint force coupling analysis of helix theory, and the theoretical validation was completed by the joint modified G-K formula. The kinematic inverse of the mechanism was solved by the closed-vector chain-of-motion equations, and the 3D point cloud map was generated by the point cloud algorithm in MATLAB to generate the workspace of the mechanism. The 3D point cloud map was generated by the Adams software, and the 3D point cloud map was generated by the Adams software. The virtual prototype simulation was carried out in Adams software. The results show that the 2-PRU/UPR mechanism has three degrees of freedom, including translational degrees of freedom along the Z-axis and rotational degrees of freedom around the X-axis and Y-axis, and its workspace has a centrosymmetric distribution and a wide range of coverage, with a good smoothness of motion. 2-PRU/UPR mechanism has a simple structure, is fast, and has a large workspace, which can be used instead of manual labor to complete the handling of underground culverts, inspection and other work, and greatly improves the work efficiency.
WANG Qian-yao, MA Chun-sheng, LI Rui-qin, YUAN Peng-fei, HAN Tao, LI Chao-chao.
Configuration Design and Performance Analysis of Culvert Handling Robots[J].
Science Technology and Engineering, 2026, 26(2): 518-524 DOI:10.12404/j.issn.1671-1815.2501077
ChaiX, WangM, XuL, et al. Dynamic modeling and analysis of a 2PRU-UPR parallel robot based on screwtheory[J]. IEEE Access, 2020, 8: 78868-78878.
[2]
PhuS N, IrwansyahI. Dynamic analysis of asix-degrees of freedom 3-RRPS parallel mechanism[C]// 9th International Conference on Applying New Technology in Green Buildings(ATiGB). New York: IEEE, 2024: 1-5.
[3]
MahdiS M, AbdulkareemA I, HumaidiA J, et al. Comprehensive review of control techniques for various mechanisms of parallel robots[J]. IEEE Access, 2025(99): 1-10.
[4]
RosyidA, El-KhasawnehB. Hybrid locomotion of a mobile parallel robot with a minimal number of motors[C]// 6th International Conference on Reconfigurable Mechanisms and Robots(ReMAR) New York: IEEE, 2024: 658-664.
HeYangtao, MaChunsheng, WenJie, et al. Kinematic analysis and workspace based on 2-PCR_2-UPS parallel mechanism[J]. Science Technology and Engineering, 2023, 23(4): 1481-1487.
GeZhenghao, GaoChuang, ZhangXiaoliang, et al. Kinematic analysis of Stewart platform based on ADAMS[J]. Light Industry Machinery, 2024, 42(2): 1-7, 22.
FengXiaodong, ZhaoYaohong, LiRuiqin, et al. Conformational design and working performance analysis of 2-CPR/RPU parallel mechanism[J]. Science Technology and Engineering, 2024, 24(12): 4902-4908.
FanKunlong, WangShenghai, QiuWeihan, et al. Operability and workspace analysis of 3UPU-UP parallel platform[J]. Science Technology and Engineering, 2024, 24(16): 6935-6942.
WangRuixue, TianBaojun, LiRuiqin, et al. Kinematics analysis and simulation of a pushing robot based on 3-UPS/PPR[J]. Mechanical Transmission, 2025, 49(2): 161-169.
XuShuai, YuJingjing, YePengda, et al. A reconfigurable 3-RRR planar parallel mechanism and its workspace analysis[J]. Journalof Nanjing University of Aeronautics and Astronautics, 2022, 54(3): 466-472.
YuHongying, LiuPeng, ZhaoDi. Position Analysis and work space analysis of PM based on branch chains[J]. Journal of Jilin University(Engineering and Technology Edition), 2020, 50(4): 1275-1282.
WangLinhu, HuaJian, TanHuan, et al. Kinematic analysis of a geologic deposition simulation platform based on 4-PSE parallel mechanism[J]. Science Technology and Engineering, 2024, 24(16): 6710-6717.
HuJian, SongShengtao, LiRuiqin, et al. Degree of freedom and position analysis of 2-RPU/UPS parallel mechanism[J]. Packaging Engineering, 2021, 42(7): 214-219.