Designing an improved structure of the tool for repairing the brake pipe connectors in vehicles
DOI:
https://doi.org/10.15587/1729-4061.2021.224912Keywords:
connector, brake pipes, box-end wrench, spanner, split wrench, crumpling of facesAbstract
This paper addresses the issue of difficulties in servicing the brake pipe connectors for passenger cars, the service life of which exceeds 8‒10 years, which is associated with the deteriorated loosening of connectors. The existing ways to loosen the connectors of brake pipes have been investigated, especially those whose dismantling is complicated due to the corrosion and contamination of mated surfaces as a result of their wetting when driving a car. A conventional structure of the connector has been analyzed, which is installed in that place of the car that is the most unprotected from moisture and dirt – on the brake cylinder. The conditions that do not contribute to its failure-free loosening have been examined. The design of a specialized split clamping ring wrench has been considered, which can transmit the greatest value of the torque to the connector when loosening it; sometimes, however, its predefined value would not suffice. A computer-based finite-element simulation was employed to derive the models of the deformation state for the node «connector ‒ wrench». Based on the analysis of the models of different deformation state of a specialized split clamping ring wrench, the required profile of the geometrically balanced locked hexagonal profile of the wrench was defined. The analysis of the efficiency of the tightening and loosening level is determined by comparing the numerical values of the torque, which is applied to the connectors of the brake pipes. The torque values are measured by a specially devised technique. The introduction of the developed measurement technique makes it possible to compare the efficiency of wrenches of different designs by analyzing the maximum values of torques, which the wrenches can transmit to the connectors. Taking into consideration the identified shortcomings in the structure of the brake pipe connectors, the shape of the connector has been designed that is free from the specified drawbacks. The new structure provides for the possibility of using a conventional carob wrench for loosening when the mated surfaces are exposed to contamination and corrosion
References
- Alemani, M., Wahlström, J., Olofsson, U. (2018). On the influence of car brake system parameters on particulate matter emissions. Wear, 396-397, 67–74. doi: https://doi.org/10.1016/j.wear.2017.11.011
- Harušinec, J., Suchánek, A., Šťastniak, P., Strážovec, P. (2018). Brake actuator optimization of the brake test stand as a tool for improvement railway safety. MATEC Web of Conferences, 235, 00028. doi: https://doi.org/10.1051/matecconf/201823500028
- Kazarinova, D. A., Gogrichiani, G. V. (2016). Selection of brake control valves for brake system of freight car by set of criteria. Vestnik of the Railway Research Institute, 75 (6), 377–382. doi: https://doi.org/10.21780/2223-9731-2016-75-6-377-382
- Klyuch prokachki tormozov (zazhimnoy). Available at: https://newlifesto.com.ua/p370904170-klyuch-prokachki-tormozov.html
- Korobko, B. O., Vasyliev, A. V., Belei, I. M. (2012). Pat. No. 79131 UA. Car brake pipe connection. No. u201212388; declareted: 29.10.2012; published: 10.04.2013, Bul. No. 7.
- Perederiy, V. P. (2008). Ustroystvo avtomobilya. Moscow: ID «FORUM»: INFRA-M, 288.
- Plating makes tube fittings and adapters corrosion resistant (2015). Sealing Technology, 2015 (12), 2. doi: https://doi.org/10.1016/s1350-4789(15)30380-9
- Vasilyev, A., Popov, S., Vasilyev, E., Pavelieva, A. (2017). Improving the method of rotational broaching in the production of profile openings on the lathes of turning group. Eastern-European Journal of Enterprise Technologies, 1 (1 (85)), 4–9. doi: https://doi.org/10.15587/1729-4061.2017.92256
- Ld, I., Gu, M. (2016). Expert System for Detecting and Diagnosing Car Engine Brake Failure Fault using Dynamic Control System (DCS). Journal of Applied & Computational Mathematics, 05 (01). doi: https://doi.org/10.4172/2168-9679.1000281
- Safronov, O., Vodiannykov, U. (2019). Procedure for determination of the actual value of the specific brake force of the passenger car with disk brakes based on the results of train brake tests. Collection of Scientific Works of the State University of Infrastructure and Technologies Series “Transport Systems and Technologies”, 33 (1), 213–226. doi: https://doi.org/10.32703/2617-9040-2019-33-1-18
- Korobko, B. O., Vasyliev, Ye. A., Popov, S. V., Vasyliev, A. V. (2019). Pat. No. 136481 UA. Modernizovanyi kliuch dlia shtutseriv halmivnykh trubok. No. u201901052; declareted: 01.02.2019; published: 27.08.2019, Bul. No. 16.
- Mazur, M. (2019). Quality Assurance Processes in Series Production of Car Elements. Quality Production Improvement - QPI, 1 (1), 610–617. doi: https://doi.org/10.2478/cqpi-2019-0082
- Mathissen, M., Grigoratos, T., Lahde, T., Vogt, R. (2019). Brake Wear Particle Emissions of a Passenger Car Measured on a Chassis Dynamometer. Atmosphere, 10 (9), 556. doi: https://doi.org/10.3390/atmos10090556
- Hazlinger, M., Moravčík, R., Moravčíková, J., Delgado Sobrino, D. R. (2018). Analysis of a Broken Pin on the Brake System of a Car Trailer. Materials Science Forum, 919, 420–427. doi: https://doi.org/10.4028/www.scientific.net/msf.919.420
- Iverson, D., DeVaal, J., Kerr, J., Oshkai, P. (2015). Investigation of ignited hydrogen leaks from tube fittings. International Journal of Hydrogen Energy, 40 (38), 13134–13145. doi: https://doi.org/10.1016/j.ijhydene.2015.08.006
- Korobko, B., Vasyliev, I. (2017). Test Method for Rheological Behavior of Mortar for Building Work. Acta Mechanica et Automatica, 11 (3), 173–177. doi: https://doi.org/10.1515/ama-2017-0025
- Korobko, B., Zadvorkin, D., Vasyliev, I. (2017). Study of the operating element motion law for a hydraulic-driven diaphragm mortar pump. Eastern-European Journal of Enterprise Technologies, 4 (7 (88)), 25–31. doi: https://doi.org/10.15587/1729-4061.2017.106873
- Klyuch razreznoy. Available at: https://tiu.ru/p367951365-klyuch-razreznoj-berger11x13.html
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2021 Сергей Гнитько , Евгений Васильев , Станислав Попов
![Creative Commons License](http://i.creativecommons.org/l/by/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution 4.0 International License.
The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.
A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.