直线电动机驱动冲压机的研究与应用

介绍了用直线电机直接驱动冲压机工作的基本原理、结构、性能以及它的检测与控制方法。和传统式机械冲压机相比, 直线电机驱动的冲压机（ 以下简称电磁冲压机） 具有结构简单、体积小、重量轻、制造周期短、成本低、控制方便、噪音低和省能等优点。目前已研究完成了５０ｋＮ 以下的科研样机, 通过了省级鉴定并获得了多项专利, 现已投入小批量生产, 效果显著。１００ｋＮ 以上的科研样机作为省重点科技攻关项目正在研究之中     

应用直线电机驱动的冲压机研究

介绍了用直线电机直接驱动冲压机工作的基本原理、结构和性能。与传统式机械冲压机相比,直线电机驱动的冲压机(以下简称电磁冲压机)具有结构简单、体积小、重量轻、制造周期短、成本低、控制方便、噪声低和节能等优点。     

应用直线电机驱动的冲压机研究

介绍了用直线电机直接驱动冲压机工作的基本原理、结构和性能。与传统式机械冲压机相比，直线电机驱动的冲压机具有结构简单、体积小、重量轻、制造周期短、成本低、控制方便、噪声低和节能等优点。     

新型冲压机冲裁力测试系统的动态标定

针对一种最新研制成功的新型直线电机驱动冲压机,为了准确测量它的瞬态冲力,对采用的计算机辅助测试系统进行了动态标定,标定结果表明整个系统测试结果准确可靠,可用于开发过程中样机的负荷测试以及定型产品的性能检测。     

直线电机驱动的新型冲压机

本文所研制的新型电磁冲压机（直线电机冲床）是利用直线电机技术,将电能直接转换成机械力,它不需通过任何中间转换机构,可实现冲头的往复运动。在国内外虽有类似研究,然而目前尚未见有这方面的成果和产品报道,本文所述的电磁冲压机已经通过省级鉴定,获得多项专利,并已投入小批量生产,效益显著。这种新型电磁冲压机和传统的机械冲压机相比,具有结构简单,体积小、重量轻,无周期性的机械噪声,脉冲式工作,有节能效果,冲压吨位、频率、速度可调,可有各种安装方式,能实现多种保护功能。１结构与工作原理 直线电机驱动的电磁冲压…     

新型冲压机计算机辅助测试系统的动态研究

针对一种最新研制成功的新型直线电机驱动冲压机,为了准确测量它的瞬态冲力,对采用的计算机辅助测试系统进行了动态标定.对于动态标定所得的结果,运用系统辨识法计算整个测试系统的频率特性.计算结果表明所建立的数学模型是有效的,而且动态测试系统能够用于开发过程中样机的负荷测试以及定型产品的性能检测.     

新型冲压机计算机辅助测试系统的动态研究

针对一种最新研制成功的新型直线电机驱动冲压机，为了准确测量它的瞬态冲力，对采用的计算机辅助测试系统进行了动态标定。对于动态标定所得的结果，运用系统辨识法计算整个测试系统的频率特性。计算结果表明所建立的数学模型是有效的，而且动态测试系统能够用开发过程中样机的负荷测试以及定型产品的性能检测。     

冲压机的气动送料机研究

采用气动技术驱动的送料机构代替传统的凸轮驱动间歇送料机构,在冲压机床中得到了广泛的应用。根据气压流体控制原理,采用气动直线驱动技术和真空吸附技术,研制出气动送料机。该气动送料机在冲压机床中得到了成功应用。     

新型交流稳压电源的研制

提出了一种新型交流稳压电路,并详细分析了它的拓扑结构、工作以及控制模式。研制了５ＫＷ的样机,并给出了实验波形。     

超高速开关磁阻电动机设计

开关磁阻电机结构简单坚固,转子上无永磁体和绕组,特别适合超高速运行。针对超高速电机的运行特点,对超高速开关磁阻电机的多物理场一体化设计方法进行探讨,研制了一台6/2结构超高速开关磁阻样机,样机最高转速为130 000 r/min,功率为1 kW。为提高样机的起动转矩,改进了样机的转子结构,并基于有限元法对样机的电磁性能和动力学性能进行优化。采用自主开发的具有角度控制功能的开关磁阻电机专用集成电路SR3P10K07A作为控制系统的控制核心。最后对样机进行了实验,实验结果表明本文采用的设计方法、转子结构和专用芯片是可行和有效的。     

直线电机驱动的活塞式空气压缩机

介绍了用直线电机驱动和活塞式空气压缩机基本结构、原理以及控制方法。和传统的旋转电动机驱动的活塞式压缩机、电磁式活塞压缩机相比,直线电机驱动的活塞式压缩机具有突出优点。     

新型冲齿机数字控制系统的研究

介绍一种主轴(冲齿)采用交流变频调速,进给(牵料)采用交流伺服驱动的新型两轴数控冲齿机。新型冲齿机利用可编程序控制器(PLC)作主控制器,LCD触摸显示屏作为人—机界面,通过软件编程和数据通讯,彻底改变了传统冲齿机冲齿—牵料机构的机械耦合刚性连接方式,实现了两轴同步驱动和工艺参数的柔性化调整。     

Development of High‐Acceleration Linear Motor to Realize Resource Saving and High Productivity

The use of linear motors has been rapidly increasing in recent years in response to the rising demand for drive mechanisms with higher speed and acceleration to improve the throughput of semiconductor production equipment, machine tools, and so on. In this study, we have developed a new type of linear motor with an opposed magnetic pole structure and twin movers. To achieve higher acceleration of a linear motor, it is necessary to satisfy both large thrust and low inertia. In our proposed new type linear motor, the thrust is improved by increasing the facing area between the permanent magnets and magnetic pole teeth by using multistage movers. Furthermore, the magnetic leakage flux is reduced by multiplexing the magnetic flux path. In a short stroke (approximately 210 mm) drive, the high acceleration of 1670 m/s² and maximum velocity of 14.2 m/s is demonstrated using a prototype linear motor (maximum thrust = 25 kN).     

Low-cost compact permanent magnet machine for adjustable-speed pumpapplication

The variable-speed driven pump can result in significant energy conservation where reduced flow rates are required for long periods of time. In regard to adjustable-speed pump drives, one major contribution of this paper is the demonstration that a permanent magnet (PM) motor based on the slotless axial-flux permanent magnet machine (AFPM) topology can be a suitable candidate to advantageously compete with the induction motor for such a low-cost drive application. For the purpose of a cost comparison, the paper discusses design and construction of a prototype machine which has been conceived to replace a 1.2 HP induction motor being used in a standard adjustable-speed pump drive. Results taken from laboratory tests of the prototype machine are reported, together with an assessment of the machine manufacturing cost     

大中型电机铁芯冲片复式冲裁设计技术的探讨

论述了当前国内外电机铁芯冲片冲裁工艺发展的现状,分析了大型薄板扇形片、磁极冲片冲裁中的技术难点、结构特点和影响冲裁寿命的多种因素,应用新结构、新技术实现复式冲裁新工艺的设计探讨。     

Axial-flux permanent-magnet motor for direct-drive elevator systemswithout machine room

This paper deals with design and construction of two twin prototypes of slotless axial-flux permanent-magnet motor drives jointly developed by SIMINOR Ascenseurs and the University of Rome for application in direct-drive elevator systems without a machine room. Each prototype of pulley-direct-drive motor is rated 5 kW, 95 rev/min, and has a shaft height of 380 mm and overall axial thickness of about 80 mm. Machine design based on unusual specification and original manufacturing solutions adopted for the proposed direct-drive elevator arrangement are discussed throughout the paper, including the leading dimensions and characteristics of the prototype motors. Finally, experimental results taken from the machine prototypes are reported     

简易冲切模具结构研究

电机冲片“一落二”工艺的推广需要研究制造结构简单、成本低的冲切模具。通过对不同结构简易冲切模具的实验改进,设计了一种满足生产和成本要求的简易冲切模具。     

Experimental study of LIM-driven,attraction-type magnetically levitated carrying system

Recently, many kinds of magnetic levitation systems have been proposed and developed for use in factory automation systems. This progress in the development depends on the appearance of new types of permanent magnets and new control theories. On the other hand, some systems have simple structures in which couples roles are given for both levitation and conveyance. As for these systems, however, many trials are needed to establish the system configurations and the control theory. The authors have developed a new magnetically levitated carrying system driven by LIM (linear-induction motor). The system can be completely detached from a guideway both in mechanical and electrical meanings. In this paper, the experimental results, especially the driving characteristics of a vehicle without any contacts to the LIM guideway, are discussed.     

Performance of coreless-winding axial-flux permanent-magnetgenerator with power output at 400 Hz, 3000 r/min

An axial-flux permanent-magnet machine (AFPM) topology with a coreless winding is proposed for generator units required aboard ships, aircraft or hybrid electric vehicles. In the proposed AFPM configuration, the winding consists of rhomboidal-shaped coils encapsulated in fiber-reinforced epoxy resin. The coils have a double-layer arrangement to leave space for a cooling water duct being used to remove heat directly from the interior surface of the winding. The overall machine structure is compact and lightweight and, due to the lack of an iron core, generator operation with power output at 400 Hz can be accomplished with high efficiency and acceptable voltage regulation. This paper discusses the basic design and construction of AFPM generators with coreless windings and experimental results taken from a 16-pole machine prototype rated 230 Nm, 3000 RPM are also reported