Abstract
In the operation of positive displacement screw machine, the profile accuracy of the screw rotor has a significant effect on the meshing stability between male rotor and female rotor, which is the main factor for vibration, noise, sealing, and wear resistance. This sets extremely strict requirements of the profile accuracy of screw rotor. Therefore, in order to obtain precise screw rotor profile, form grinding is generally used as a finishing process in the manufacture of screw rotors. Unfortunately, the grinding wheel has to be frequently dressed due to inevitable grinding wheel wear. This will cause a substantial waste of time and thus lead to inefficiency. It is therefore desirable to be able to predict the profile error caused by grinding wheel wear in order to make it controllable. In this paper, the influence of installation angle, center distance, and grinding wheel wear on rotor profile error is investigated. A novel method has been proposed for prediction profile error of the screw rotor in precision form grinding. The proposed method has been employed to compensate profile error caused by grinding wheel wear and improve grinding efficiency. Verification experiments were conducted with several screw rotors produced and profile error measured. The comparison shows that the compensation results agree well with the numerical simulation results, showing the effectiveness of the proposed compensation method.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Kovacevic A, Stosic N, Mujic E, Smith IK (2007) CFD integrated design of screw compressors. Eng Appl Comput Fluid Mech 1:96–108
Li W, Lu H, Zhang Y, Zhu C, Lu X, Shuai Z (2016) Vibration analysis of three-screw pumps under pressure loads and rotor contact forces. J Sound Vib 360:74–96
Litvin FL, Fuentes A (2004) Gear geometry and applied theory. Cambridge University Press, New York
Deng D, Shu P (1982) Rotary compressor. China Machine Press, Beijing
Wu X (2009) Theory of gearing. Xi’an Jiaotong University Press, Xi’an
Tang Q, Zhang Y, Jiang Z, Yan D (2015) Design method for screw forming cutter based on tooth profile composed of discrete points. J Mech Des 137:085002
Li G (2017) A new algorithm to solve the grinding wheel profile for end mill groove machining. Int J Adv Manuf Technol 90:775–784
Jia K, Hong J, Zheng S, Zhang Y (2017) An approach on wheel position and orientation calculation for helical broaching tool sharpening. Int J Adv Manuf Technol 92:1991–2000
Stosic N (2006) A geometric approach to calculating tool wear in screw rotor machining. Int J Mach Tools Manuf 46:1961–1965
Wei J, Zhang G (2010) A precision grinding method for screw rotors using CBN grinding wheel. Int J Adv Manuf Technol 48(5–8):495–503
Wu Y-R, Fan C-W (2013) Mathematical modeling for screw rotor form grinding on vertical multi-axis computerized numerical control form grinder. J Manuf Sci Eng 135:051020
Tao L, Wang Y, He Y, Feng H, Yi O, Wang X (2016) A numerical method for evaluating effects of installation errors of grinding wheel on rotor profile in screw rotor grinding. Proc Inst Mech Eng B J Eng Manuf 230:1381–1398
Zhao Y, Zhao S, Wei W, Hou H (2017) Precision grinding of screw rotors using CNC method. Int J Adv Manuf Technol 89:2967–2979
Zhao Y, Zhao S, Hou H, Li J, Wei W (2018) Determining the repair width and CNC grinding of screws of triple-screw pump. Int J Adv Manuf Technol 1–12. https://springerlink.bibliotecabuap.elogim.com/content/pdf/10.1007%2Fs00170-018-1943-8.pdf
Berbinschi S, Teodor V, Oancea N (2012) A study on helical surface generated by the primary peripheral surfaces of ring tool. Int J Adv Manuf Technol 61:15–24
Teodor VG, Popa I, Oancea N (2010) The profiling of end mill and planing tools to generate helical surfaces known by sampled points. Int J Adv Manuf Technol 51:439–452
Norton Quantum 3 - Norton Abrasives https://www.nortonabrasives.com/sites/sga.na.com/files/document/NQ3_IND_NPL_White_Paper_NAM_rev2.pdf?t=597777
Hou ZB, Komanduri R (2003) On the mechanics of the grinding process – part I. Stochastic nature of the grinding process. Int J Mach Tools Manuf 43:1579–1593
Funding
The authors gratefully acknowledge the support of the National Natural Science Foundation of China (grant number 51575069), Program of International S&T Corporation (grant number 2014DFA73030), and the China Scholarship Council (grant number 201606050036).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Liu, Z., Tang, Q., Liu, N. et al. A profile error compensation method in precision grinding of screw rotors. Int J Adv Manuf Technol 100, 2557–2567 (2019). https://doi.org/10.1007/s00170-018-2841-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00170-018-2841-9