臧发业 张玉波 戴汝泉
（山东交通学院科研处，山东济南 250023）
摘 要:介绍了一种非恒压网络下二次调节静液传动系统的蓄、释能控制方法及其控制装置,阐述了其蓄、释能工作过程,分析了流量耦联二次调节传动系统和公交汽车并联式液压混合动力传动系统为的结构、工作原理及性能特点，提出了通过对液压蓄能器的控制，可实现能量回收和能量再利用过程的的控制，增大系统的压力工作范围，有利于提高能量的再利用效果和再利用效率。
关键词:二次调节;非恒压网络;蓄能;释能;控制
中图分类号:TH137
文献标识码：A
文章编号：1008-0813(2010)02-0051-04
Storing & Releasing Energy
Control on Hydrostatic Transmission System with Secondary
Regulation under Common
Pressure Rail
ZANG Fa-ye ZHANG Yu-bo DAI Ru-quan
(Division of Scientific Research,
Shandong Jiaotong
University, Jinan 250023 China)
Abstract：The storing & releasing energy control way and its
control equipment on hydrostatic
transmission system with secondary regulation under variable
pressure rail were introduced. The
storing & releasing energy process
has been expatiated. The structure, the working theory and the characteristics
of the flow-coupled transmission system with secondary regulation and the bus
parallel connection hybrid transmission system were analyzed. It has come to an
conclusion that by controlling the hydraulic accumulator, the control of
energy-reclaim and energy-recycle has been realized, the working range of the
system pressure has been increased, and the energy-recycle effect and the
energy-recycle efficiency have been improved.
Keywords：Secondary regulation；Variable pressure
rail；Energy-storing；Energy-releasing；Control
管螺纹加工的断屑方法研究
姜
燕
(大连理工大学机械工程学院，辽宁大连 116024)
摘 要：深入研究了管螺纹加工的断屑方法，将目前管螺纹加工的断屑方法分为两大类——作用于刀具上的方法和增加断屑辅助装置的方法，并对各种方法的工作原理、技术特点及优缺点等进行了全面的分析、比较和总结，指出了管螺纹加工断屑方法仍然存在的问题和下一步的研究方向。
关键词：管螺纹；断屑；断屑槽；断屑器；低频振动；激光辅助切屑控制
中图分类号：TH161+S.1 文献标识码：A
文章编号：1008-0813(2010)02-0055-03
Research About the Methods of
Chip-breaking in Machining Pipe Thread
JIANG Yan
(School of Mechanical Engineering, Dalian University
of Technology, Dalian
116024, China
)
Abstract:The methods
of chip-breaking in machining pipe thread were researched deeply, which are
classified into two categories: the methods acting on tools and adding auxiliary
devices for chip-breaking. The principle
of work, the technical characteristics, the advantages and disadvantages, and so
on were analyzed, compared and summarized, and the following research directions
were also pointed out.
Key Words:pipe thread;chip-breaking;chip breaker groove;notcher, low frequency vibration; laser-assisted
controlling cutting chips
新型磁-气控制液位调节阀
张光函 罗 华
（四川大学制造科学与工程学院 四川成都 610065）
摘 要：磁-气控制液位调节阀主要由磁浮子液位计，磁-气控制装置和气动主控阀等组成，适用于高压、防火、防爆等安全需要的场合，根据磁浮子液位高度发出磁-气控制信号，控制气动主控阀开和关，实现容器的自动排液和液位控制。
关键词：磁气控制 液位计
调节阀
中图分类号：TH138
文献分类码：A
文章编号：1008-0813(2010)02-0058-04
New
Type Fluid Place Regulator of Magnetic-Pneumatic
Control
ZHANG Guang-han NUO Hua
（Sichuan
University,Chengdu 610065,China）
Abstract:The fluid place regulator of
magnetic-pneumatic control consists of a fluid place meter with a pneumatic
control main regulator. It is used for the site that meets the safe reguirment
of high pressure，fire
prevenion
，exploded
protetion and so on。Based on the fluid place of magnetic
float、the
pneumatic signed of magnetic control is sent out
，the
open or closed the pneumatic main regulator are controlled，and
the automatic drain off fluid and
control fluid place are achieve in the vessel.
Key Word:magnetic-pneumatic control;fluid place
meter;regulator
内腔介质压力自补偿密封技术与组合密封技术
