Dynamic Analysis of Shearer Traction Unit Considering the Longitudinal Swing

Dejian Ma, Xin Zhang, Lirong Wan, Qingliang Zeng and Hongen Ge
Additional contact information
Dejian Ma: College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Xin Zhang: College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Lirong Wan: College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Qingliang Zeng: College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Hongen Ge: College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China

Energies, 2020, vol. 13, issue 20, 1-15

Abstract: Shearer traction failure occurs frequently, which seriously restricts the safe and efficient mining of coal. However, the influence of the shearer’s posture on traction has not been fully considered in the existing research. To improve traction reliability: the dynamic model of the traction unit is established considering longitudinal swing; the walking characteristics of the shearer and the dynamics of the traction unit are analyzed; and the influences of traction velocity, drum load cutting arm angle, and depression angle are discussed. The results show that the longitudinal swing is reciprocating and the positive swing is more serious. With the increase of the traction velocity, the walking stability of the shearer decreases while the contact force increases, especially the support slipper. The longitudinal swing increases with the increase of lateral load, but the supporting force of the support slipper decreases with the increase of cutting load. The forces of the walking wheel and the support slipper show an increasing trend with the increase of cutting arm angle. When the depression angle is 5–10°, the load distribution of the contact components of the traction unit is more balanced. The results provide a reference for the structure optimization of the shearer and the layout of coalface.

Keywords: coal mining; shearer traction unit; longitudinal swing; dynamic properties (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/20/5293/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/20/5293/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:20:p:5293-:d:426549

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().