DOI: https://doi.org/10.32515/2664-262X.2022.6(37).1.23-29

Radial Clearance in Gear Pump Hydraulic Systems of Auto and Tractor Machinery Forming Features

Yuriy Kuleshkov, Mykhailo Krasota, Timofey Rudenko, Ruslan Osin,Yuriy Evseichik

About the Authors

Yuriy Kuleshkov, Professor, Doctor in Technics (Doctor of Technics Sciences), Central Ukraіnian National Technical University, Kropyvnytskyi, Ukraine, e-mail: kul090455@gmail.com, ORCID ID: 0000-0001-6492-6919

Mykhailo Krasota, Associate Professor, PhD in Technics (Candidate of Technics Sciences), Central Ukraіnian National Technical University, Kropyvnytskyi, Ukraine, e-mail: krasotamv@ukr.net, ORCID ID: 0000-0001-8791-3264

Timofey Rudenko, Associate Professor, PhD in Technics (Candidate of Technics Sciences), Central Ukraіnian National Technical University, Kropyvnytskyi, Ukraine, e-mail: r-t-v@mail.ua, ORCID ID: 0000-0001-6879-7624

Ruslan Osin, Associate Professor, PhD in Technics (Candidate of Technics Sciences), Central Ukraіnian National Technical University, Kropyvnytskyi, Ukraine, e-mail: ruslan_osin@ukr.net, ORCID ID: 0000-0002-8927-5363

Yuriy Evseichik, Associate Professor, PhD in Physicals&Mathematicals (Candidate of Physical & Mathematical Sciences), National Transport Universit, Kyiv, Ukraine

Abstract

The research goal is the analysis of the existing radial clearance forming method in gear pump details connection “body – gear teeth”, which provides the minimal size of radial clearance with the low accuracy of manufacturing details and offers another rational method of radial clearance creating. In this research was considered creating radial clearance between body and gears of gear pump hydraulic systems of auto and tractor machinery. The technology of gear pump manufacturing after pump folding provides it's enabling on a special stand in order to disability verification. During the period of enabling, as mentioned before, gear teeth cutting into the body happens with forming a so-called «bed», which must provide a radial clearance seal. Given research results of way of radial gear pump clearance forming influence, which is used in hydraulic systems of auto and tractor machinery, gears cutting in pump body during enabling for technical characteristics. Considered the main advantages and disadvantages of this method, and found, that existed way of radial clearance forming by cutting gear into the body, today does not comply with the requirements for pumps. Using the method of gear cutting negatively impacts the supply rate and pump durability. Offered a new way of radial clearance forming, which consists of getting a minimal radial clearance between gears and body due to more accurate gears manufacturing top diameter. This method does not provide gears cutting into the pump body, which increases pump durability. An effective method of radial clearance forming is more accurate manufacturing and folding pump details. The results of experimental research show that increasing radial clearance to certain sizes does not influence on pump supplying rate significantly.

Keywords

gear pump, radial clearance, working liquid losses, hydraulic system

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References

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Copyright (c) 2022 Yuriy Kuleshkov, Mykhailo Krasota, Timofey Rudenko, Ruslan Osin,Yuriy Evseichik