工作负荷对液压泵流量特性影响的实验研究

IF 2.2 3区工程技术 Q2 ENGINEERING, MULTIDISCIPLINARY

Eksploatacja I Niezawodnosc-Maintenance and Reliability Pub Date : 2022-07-04 DOI:10.17531/ein.2022.3.19

J. Kosiba, Z. Tkáč, J. Jablonicky, V. Shcherbak, L. Ganushchak-Yefimenko, Martin Paumer, Tetiana Bukoros, Gabriela Čurgaliová, M. Zachar

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引用次数: 1

摘要

在实验条件下，研究了工作载荷对液压泵流量特性的影响。在试验中，采用新型齿状液压泵，液压油的运动粘度为40℃，ν = 64.2 mm2。使用S-1。在最困难的农业技术操作-犁地时测量了工作负荷，此时液压泵的负荷最大。实验室测试时间为200小时，每隔50小时检测一次流量特性。在额定转速n = 1,000 rpm下进行流量特性测量。在p = 0 MPa到p = 20 MPa的加载压力范围内进行了流量特性的测量。当p = 0 MPa时，n = 91.70%，当p = 20 MPa时，n = 86.68%。液压泵磨合150小时，流量特性比初始状态提高Δηvol = 1.36% (p = 10 MPa)。工作200小时后，液压泵的流量与150小时相比减小。

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Experimental testing of the influence of the operating loading on the flow characteristics of hydraulic pump

The contribution deals with the influence of the operating loading on the flow characteristics of the hydraulic pump under laboratory conditions. In the test, a new toothed hydraulic pump and hydraulic oil with kinematic viscosity at 40°C, ν = 64.2 mm2 .s-1 were used. The operational loading was measured during the most difficult agrotechnical operation – ploughing, at which the loading of the hydraulic pump is the greatest. Laboratory testing was determined for 200 hours, and the flow characteristics had been detected at 50 hours intervals. Measurement of the flow characteristics was performed at rated speed n = 1,000 rpm. Measurement of the flow characteristics was carried out in dependence on the loading pressure from p = 0 MPa to p = 20 MPa. When p = 0 MPa, the value reached n = 91.70% and when p = 20 MPa, n = 86.68%. Running-in of the hydraulic pump lasted 150 hours, with an increase of the flow characteristics Δηvol = 1.36% (p = 10 MPa) compared to the initial state. After working for 200 hours, the flow rate of the hydraulic pump decreases compared to 150 hours.

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来源期刊

Eksploatacja I Niezawodnosc-Maintenance and Reliability ENGINEERING, MULTIDISCIPLINARY-

CiteScore

5.70

自引率

24.00%

发文量

审稿时长

3 months

期刊介绍： The quarterly Eksploatacja i Niezawodność – Maintenance and Reliability publishes articles containing original results of experimental research on the durabilty and reliability of technical objects. We also accept papers presenting theoretical analyses supported by physical interpretation of causes or ones that have been verified empirically. Eksploatacja i Niezawodność – Maintenance and Reliability also publishes articles on innovative modeling approaches and research methods regarding the durability and reliability of objects.