Hydropulse small-sized vibrators based on slotted springs
Roman Obertyuh, Andrіі Slabkyі, Olexandr Polishchuk, Oksana HanpantsurovaThe article presents constructions and descriptions of the principles of operation of single-stage pressure pulse generators which are the main elements of the hydropulse drive used to generate vibrations of actuators in vibrating and vibratory shock machines for various purposes. Namely the pressure pulse generator with a solid body the pressure pulse generator with a floating seat and the pressure pulse generator with valve sealing degrees which were developed on the basis of Vinnytsia National Technical University. In the considered devices have the slotted spring as an elastic element which is executed as a separate detail or as a constructive element of other details which are a part of the device is used. The use of such elastic elements allows to ensure the speed of the devices and accordingly to increase the frequency characteristics of their operating modes. It is established that hydropulse vibrators - hydraulic cylinders based on cut or ring springs have the smallest dimensions with significant vibration force parameters.The text of the article highlights the main conditions for stable operation of these pressure pulse generators indicates and analyzes the mathematical dependences between the operating parameters of devices and the size of their structural elements offers the necessary correlation between structural dimensions of working surfaces of actuators and features of their positional parameters. The offered mathematical dependences can be used both for optimization of work of the designs of devices considered in article and at designing of new generators of pressure pulses with the hydropulse drive of various function. The shortcomings of individual designs of pressure pulse generators which may be related to the ways of sealing the working chambers of devices or options for interaction of structural elements of the device are identified and considered.
References
[1] Iskovich-Lototskyi, R.D., Obertyukh, R.R., Arkhipchuk, M.R., & Sevostyanov I.V. (2006). Processes and machines of vibration and shock technologies. Vinnytsia: UNIVERSUM–Vinnytsia.
[2] Iskovich-Lototskyi. R.D., Obertyukh R.R., & Polishchuk, O.V (2008). The use of a hydraulic impulse drive in the equipment of processing industries. Vinnytsia: VNTU.
[3] Iskovich-Lototskyi, R.D., Obertyukh, R.R.,& Arkhipchuk, M.R. (2008). Pressure pulse generators for controlling hydraulic impulse drives of vibrating and vibro-impact technological machines. Vinnytsia: UNIVERSUM–Vinnytsia.
[4] Obertyukh R.R., & Slabky, A.V. (2015). Vibro-turning devices based on a hydropulse drive. Vinnytsia: VNTU.
[5] Obertyukh, R.R., Slabky, A.V., & Marushchak, M.V. (2017). Vibro-impact device with hydraulic impulse drive of increased speed and efficiency for deformation hardening of the surfaces of machine parts. Journal of Mechanical Engineering and Transport, 1, 63-71.
[6] Obertyukh, R.R., & Slabky, A.V. (2017). Devices for vibration cutting and strain hardening with elastic elements of highrigidity. In Materials (theses) of the XVI international scientific and technical conference “Vibrations in engineering and technologies” (pp. 68-71). Vinnytsia: VNTU.
[7] Obertyuh, R.R., Slabkiy, A.V., Marushchak, M.V., Kobylianskyi, O.V., Wojcik, W., Yerkeldessova, G., & Turgynbekov, Y. (2019). Method of design calculation of a hydropulse device for strain hardening of materials. Przeglagd elektrotechniczny, 4, 65-73.
[8] Obertyukh, R.R., Slabky, A.V., Andrukhov, S.R., & Kudrash V.O. (2019). Parametric single-cascade pressure pulse generators of increased bandwidth. Journal of Mechanical Engineering and Transport, 1, 40-48.
[9] Obertyukh, R.R., Slabky, A.V., Polishchuk, O.V., & Kudrash, O.V. (2019). Single-stage generator of pressure pulses of increased bandwidth. Patent of Ukraine No. 141848 U, F15В21/00.
[10] Rakovsky, V.S., Silaev, A.D., & Khodkin, V.I. (1984). Powder metallurgy of heat-resistant alloys and refractory materials. Moscow: Metallurgy.