中国机械工程 ›› 2025, Vol. 36 ›› Issue (11): 2633-2640.DOI: 10.3969/j.issn.1004-132X.2025.11.019
• 机械基础工程 • 上一篇
杨伟1(
), 贾晨2, 何超3, 樊文欣2, 樊志强4, 李正禄3
收稿日期:2025-03-20
出版日期:2025-11-25
发布日期:2025-12-09
通讯作者:
杨伟
作者简介:杨 伟*(通信作者),男,1985年生,讲师。研究方向为新型动力系统开发、新能源燃料设计及液滴动力学。发表论文14篇。E-mail:yangwei2184@nuc.edu.cn。基金资助:
Wei YANG1(
), Chen JIA2, Chao HE3, Wenxin FAN2, Zhiqiang FAN4, Zhenglu LI3
Received:2025-03-20
Online:2025-11-25
Published:2025-12-09
Contact:
Wei YANG
摘要:
针对工程机械中定量泵功率损失大的问题,设计了一种变排量对置柱塞泵。采用等效建模方法建立了该泵的AMESim仿真模型,采用台架试验验证了模型的有效性。试验结果表明:平均流量的仿真值和试验值的最大误差为9.30%,考虑到泄漏和泵阀回流的因素,该误差在合理范围内。基于该仿真模型研究了变排量对置柱塞泵在变转速、变相位及其交互作用下的流通性能。仿真结果表明:泵的流量和压力会随着转速的增加而增加,随相位差的增大而减小。额定转速下,相位差从0°增加到150°时,平均流量降低了74.00%,最大瞬时压力减小了88.87%,这表明该泵的流量、压力调节范围较大。该泵通过调节转速和相位差可实现输出流量的连续变化,为变排量泵控制打下研究基础。
中图分类号:
杨伟, 贾晨, 何超, 樊文欣, 樊志强, 李正禄. 变排量对置柱塞泵流通特性研究[J]. 中国机械工程, 2025, 36(11): 2633-2640.
Wei YANG, Chen JIA, Chao HE, Wenxin FAN, Zhiqiang FAN, Zhenglu LI. Study on Flow Characteristics of Variable Displacement Opposed Piston Pumps[J]. China Mechanical Engineering, 2025, 36(11): 2633-2640.
| 参数 | 数值 |
|---|---|
| 流量/(L·min-1) | 30 |
| 压力/MPa | 0.5 |
| 曲轴转速/(r·min-1) | 300 |
| 曲柄半径/m | 0.03 |
| 连杆长度/m | 0.1 |
| 活塞行程/m | 0.06 |
| 活塞直径/m | 0.04 |
表1 变排量对置柱塞泵主要参数
Tab.1 Main parameters of variable displacement opposed piston pumps
| 参数 | 数值 |
|---|---|
| 流量/(L·min-1) | 30 |
| 压力/MPa | 0.5 |
| 曲轴转速/(r·min-1) | 300 |
| 曲柄半径/m | 0.03 |
| 连杆长度/m | 0.1 |
| 活塞行程/m | 0.06 |
| 活塞直径/m | 0.04 |
| 类型 | 参数 | 数值 |
|---|---|---|
| 进油阀 | 进油阀预紧力/N | 0.5 |
| 进油阀弹簧刚度/(N·mm-1) | 0.1 | |
| 进油阀阀芯直径/mm | 20.0 | |
| 进油阀阀芯质量/g | 25.0 | |
| 出油阀 | 出油阀预紧力/N | 1.0 |
| 出油阀弹簧刚度/(N·mm-1) | 0.1 | |
| 出油阀阀芯直径/mm | 20.0 | |
| 出油阀阀芯质量/g | 25.0 |
表2 参数设置
Tab.2 Parameterisation
| 类型 | 参数 | 数值 |
|---|---|---|
| 进油阀 | 进油阀预紧力/N | 0.5 |
| 进油阀弹簧刚度/(N·mm-1) | 0.1 | |
| 进油阀阀芯直径/mm | 20.0 | |
| 进油阀阀芯质量/g | 25.0 | |
| 出油阀 | 出油阀预紧力/N | 1.0 |
| 出油阀弹簧刚度/(N·mm-1) | 0.1 | |
| 出油阀阀芯直径/mm | 20.0 | |
| 出油阀阀芯质量/g | 25.0 |
| 相位/(°) | 平均流量/(L·min-1) | 功率损失/W |
|---|---|---|
| 0 | 44.50 | 134.98 |
| 30 | 43.00 | 93.70 |
| 60 | 38.50 | 78.19 |
| 90 | 31.45 | 56.95 |
| 120 | 22.22 | 38.17 |
| 150 | 11.57 | 38.62 |
表3 功率损失
Tab.3 Power loss
| 相位/(°) | 平均流量/(L·min-1) | 功率损失/W |
|---|---|---|
| 0 | 44.50 | 134.98 |
| 30 | 43.00 | 93.70 |
| 60 | 38.50 | 78.19 |
| 90 | 31.45 | 56.95 |
| 120 | 22.22 | 38.17 |
| 150 | 11.57 | 38.62 |
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