Study on Flow Distribution Mechanism of Low Speed High Torque Hydraulic Motor

doi:10.12141/j.issn.1000-565X.230406

Abstract

Abstract:

In applications such as coal mining, food and underwater operations, low speed high torque high water-based hydraulic motors have the advantages of high power-to-weight ratio and medium compatibility. However, the current high-water-based hydraulic motors still maintain the same flow distribution structure as oil motors and only replace the working medium with high-water-based emulsion instead of hydraulic oil. Traditional flow distribution disc structures use spring force to ensure sealing. Under low speed, high pressure, and high water-based conditions, the flow distribution disc wears heavily, resulting in serious leaks. For high-water-based emulsion drive systems, this paper proposed a valve flow distribution mechanism comprising valves, bearings, and a pentagon-wheel. The motor’s intaking and discharging process is controlled by a check valve, and the opening and closing of the valve is controlled by the pentagon-wheel. Then the paper carried out comparative analysis on flow distribution rules, advantages and disadvantages of eccentric-wheel, cam, and pentagon-wheel flow distribution mechanisms. It is found that the pentagon-wheel flow distribution structure can reduce the concentration of push rod stress and solve the phenomenon of push rod self-rotation jamming. Finally, the superiority of the five-star wheel flow distribution structure was verified by using AMESim. The prototype was prepared and the performance experiment was carried out. The results show that the pressure in the plunger cavity can be quickly established under different speed (10~90 r/min) and pressure (5~21 MPa). Compared with traditional disc flow distribution mechanisms, the leak rate of the valve flow distribution mechanism under high-water-based conditions of 21 MPa and 90 r/min is only 0.15 mL/min, significantly improving motor volume efficiency.

Key words: high water-based hydraulic motor, numerical simulation, valve flow distribution mechanism, low speed and high torque, fluid transmission

CLC Number:

TH137.51

YU Mingquan, ZHAO Jiyun, MAN Jiaxiang, et al.. Study on Flow Distribution Mechanism of Low Speed High Torque Hydraulic Motor[J]. Journal of South China University of Technology(Natural Science Edition), 2023, 51(11): 101-109.

Figures/Tables 20

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References 26

1	刘银水，朱玉泉，李壮云．水压传动技术的特征与新进展［J］．液压与气动，2006（2）：66-69.
	LIU Yinshui， ZHU Yuquan， LI Zhuangyun ．The features of water hydraulics and its new development［J］．Chinese Hydraulics & Pneumatics，2006（2）：66-69.
2	陈卓如．低速大扭矩液压马达理论、计算与设计［M］．北京：机械工业出版社，1989．
3	WESTINGHOUSE E C， OCEANOC D ．Development of a seawater hydraulic vane motor for driver tools［M］．Port Hueneme：Civil Engineering Laboratory Naval Construction Battalion Center，1980：4.
4	Industries Wolfhart ．Manufacturer of clean water hydraulic motors and high pressure drinking water pumps［EB/OL］．（2017-04-02）［2023-08-28］．.
5	Water Hydraulics Company ．The Janus axial piston motors［EB/OL］．（2013-05-04）［2023-03-25］．.
6	Company Danfoss ．Danfoss Nessie water motors［EB/OL］．（2017-07-19）［2023-03-25］．.
7	Fluidtechnik Düsterloh.Hydraulic motors［EB/OL］．（2019-05-22）［2023-03-25］．.
8	TSUKAGOSHI H， NOZAKI S， KITAGAWA A ．Versatile water hydraulic motor by tap water［C］∥ Proceedings of 2000 IEEE/RSJ International Conference on Intelligent Robots and Systems. Takamatsu：IEEE，2000：1949-1954.
9	WANG Z Q， GAO D R， FEI J H ．Analysis and numerical simulation of leakage flow speed high torque water hydraulic motor’s plain flow distribution pair［J］．Applied Mechanics and Materials，2012，233：204-207.
10	YANG L J， NIE S L， ZHAO J B，et al ．Numerical and experimental investigation on torque characteristics of seawater hydraulic axial piston motor for underwater tool system［J］．Ocean Engineering，2015，104：168-184.
11	张中成．分析轴向柱塞泵不同配流结构对配流特性及润滑的影响［D］．兰州：兰州理工大学，2021.
12	倪敬，冯国栋，王志强，等．内曲线式端面配流水液压马达的优化设计［J］．浙江大学学报（工学版），2017，51（5）：946-953.
	NI Jing， FENG Guodong， WANG Zhiqiang，et al ．Optimization design of internal curve type water hydraulic motor with plain flow distribution［J］．Journal of Zhejiang University （Engineering Science），2017，51（5）：946-953.
13	王建利，刘晋浩．液压冲击下五星式径向柱塞马达配流轴疲劳分析［J］．农业工程学报，2014，30（19）：65-70.
	WANG Jianli， LIU Jinhao ．Fatigue analysis of pintle vale of motor with five-star radial piston under effect of hydraulic shock［J］．Transactions of the Chinese Society of Agricultural Engineering，2014，30（19）：65-70.
14	侯亮，赖伟群，崔凯，等．轴向柱塞马达平面配流副油膜润滑特性建模及分析［J］．华南理工大学学报（自然科学版），2021，49（2）：99-109，139.
	HOU Liang， LAI Weiqun， CUI Kai，et al ．Modeling and analysis of oil film lubrication characteristics of valve-plane pair in axial piston motor［J］．Journal of South China University of Technology （Natural Science Edition），2021，49（2）：99-109，139.
15	邓海顺，于海武，王晓雷．轴向柱塞泵配流副低压区织构化试验研究［J］．华中科技大学学报（自然科学版），2012，40（6）：16-19.
	DENG Haishun， YU Haiwu， WANG Xiaolei ．Study on tribological performance of textured port plates of axial piston pumps［J］．Journal of Huazhong University of Science and Technology （Natural Science Edition），2012，40（6）：16-19.
16	毋少峰．仿生非光滑表面配流副润滑承载机理数值模拟及摩擦磨损实验研究［D］．秦皇岛：燕山大学，2017.
17	LIU H L， WANG G Z， KE J，et al ．Research on the anti-sticking characteristics of water hydraulic piston friction pairs with hydrostatic bearing［J］．Lubrication Science，2013，25（7）：453-462.
18	贺小峰，杨明国，李壮云．水压柱塞泵配流阀的设计及试验研究［J］．中国机械工程，2004，15（10）：862-864.
	HE Xiaofeng， YANG Mingguo， LI Zhuangyun ．Design and experimental research on the check valves of water hydraulic piston pump［J］．China Mechanical Engineering，2004，15（10）：862-864.
19	汤何胜，訚耀保，王康景．带变速阀挖掘机液压马达的转速切换特性［J］．华南理工大学学报（自然科学版），2013，41（11）：79-84.
	TANG He-sheng， YAN Yao-bao， WANG Kang-jing ．Speed-switching characteristics of hydraulic motor of excavator with shift valve［J］．Journal of South China University of Technology （Natural Science Edition），2013，41（11）：79-84.
20	宋良辰．径向柱塞摆缸式高水基马达曲轴柱塞副关键技术研究［D］．徐州：中国矿业大学，2021.
21	泮健，施光林．数字配流与调速式液压马达的建模与实现［J］．上海交通大学学报，2011，45（11）：1607-1612.
	PAN Jian， SHI Guang-lin ．Modeling and implementation of hydraulic motor with digital distribution and speed adjusting mechanism［J］．Journal of Shanghai Jiaotong University，2011，45（11）：1607-1612.
22	李林．阀配流变量轴向柱塞马达及其变量机构研究［D］．杭州：浙江大学，2014.
23	满家祥，赵继云，王云飞，等．曲轴摆缸式阀配流水液压马达工作特性研究［J］．农业机械学报，2023（1）：450-458.
	MAN Jiaxiang， ZHAO Jiyun， WANG Yunfei，et al ．Working characteristics of crankshaft swing cylinder water hydraulic motor with flow distribution valve［J］．Transactions of the Chinese Society for Agricultural Machinery，2023（1）：450-458.
24	申文强，聂松林，尹方龙，等．一种新型低速大扭矩水液压马达结构设计及仿真分析［J］．液压与气动，2019（6）：17-21.
	SHEN Wen-qiang， NIE Song-lin， YIN Fang-long，et al ．Structure design and simulation analysis of a new type low-speed large-torque water hydraulic motor［J］．Chinese Hydraulics & Pneumatics，2019（6）：17-21.
25	邱冰静．自平衡式阀配流低速大扭矩高水基液压马达关键技术研究［D］．徐州：中国矿业大学，2018.
26	周辉．自平衡式高低压配流阀组低速大扭矩乳化液马达的设计与研究［D］．徐州：中国矿业大学，2016.

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