区分电子万能试验机和液压万能试验机

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电子万能试验机和液压万能试验机的区别


Difference between electronic universal testing machine and hydraulic universal testing machine




从结构特点


From structural characteristics




电子万能试验机主要以伺服电机为动力源,以螺杆和螺杆母为执行部件,实现试验机动梁的速度控制.在传动控制中,主要有同步带和减速器两种形式.在力测量中,负载传感器用于所有电子万能试验机.


The electronic universal testing machine mainly uses the servo motor as the power source, and the screw and the screw as the executive parts to realize the speed control of the test mobile beam. In the transmission control, there are mainly two forms of synchronous belt and reducer. In the force measurement, the load sensor is used for all electronic universal testing machines.




液压万能机,顾名思义,采用高压液压电源作为动力源.手动阀、伺服阀或比例阀用作控制元件.通用液压万能试验机只能进行手动和手动加载,属于开环控制系统,受价格因素的影响.测力传感器一般采用液压传感器.


Hydraulic universal machine, as the name implies, uses high-pressure hydraulic power supply as power source. Manual valve, servo valve or proportional valve are used as control elements. Universal hydraulic universal testing machine can only carry out manual and manual loading, which belongs to open-loop control system and is affected by price factors. Generally, hydraulic sensor is used as force sensor.




使用性能


Service performance




电子万能试验机


Electronic universal testing machine




1.电子万能试验机,无油源,清洁,使用维护更方便;


1. Electronic universal testing machine, no oil source, clean, easy to use and maintain;




2.可以调节测试速度范围,可以根据需要确定测试行程,更灵活;


2. The test speed range can be adjusted, and the test stroke can be determined as required, which is more flexible;




三.测力精度高,有的甚至可达0.2%.


Third, the accuracy of force measurement is high, even 0.2%.




4、体积小、重量轻、空间大、便于添加相应的装置进行各种材料力学测试,真正达到一机多用.


4. It is small in volume, light in weight, large in space and convenient to add corresponding devices for mechanical testing of various materials, so as to achieve multi-purpose of one machine.




5.国内主流试验机厂家生产的电子万能试验机,可以实现所谓的负载控制、应变控制和位移控制的三闭环控制.


5. The electronic universal testing machine produced by domestic mainstream testing machine manufacturers can realize the so-called three closed-loop control of load control, strain control and displacement control.




液压万能试验机


Hydraulic universal testing machine




1.由于油源流量的限制,试验速度较慢.


1. Due to the limitation of oil source flow, the test speed is slow.




2.手动液压万能试验机操作简单,成本低廉,但控制精度低.


2. The manual hydraulic universal testing machine has the advantages of simple operation, low cost and low control accuracy.




3.电液伺服万能试验机性能不逊于电子万能试验机,控制精度不低于电子万能试验机,负载传感器微机控制电液伺服万能试验机;


3. The performance of the electro-hydraulic servo universal testing machine is no less than that of the electronic universal testing machine, the control accuracy is no less than that of the electronic universal testing machine, and the load sensor microcomputer controls the electro-hydraulic servo universal testing machine;




4.在大吨位材料力学试验中,受力精度可达到0.5%左右,且更可靠、更稳定、更经济有效.


4. In the mechanical test of large tonnage materials, the stress accuracy can reach about 0.5%, which is more reliable, more stable, more economical and effective.




应用范围


Application scope




电子万能试验机广泛应用于各种金属、非金属、复合材料、医药、食品、木材、铜、铝、塑料、电线电缆、纸张、薄膜、橡胶、纺织、航空航天等行业的拉伸性能指标的测试.本实用新型适用于仅要求相关数据如抗压强度、抗拉强度值的用户.如果需要更复杂的参数,计算机控制的电子万能试验机是液压万能试验机的较好选择.主要用于金属、非金属材料、零部件等机械性能的拉伸、压缩和弯曲试验.液压万能试验机是工程、矿山企业、建材、质检中心、水利水电、桥梁工程、科研院所、高等学校的理想测试设备.手动控制液压万能试验机,价格便宜,适用于工矿企业成品检验、单材指标试验.大吨位电子张力机也会使用液压夹具,电动拉力的动力源是电机,重点是非金属.


The electronic universal testing machine is widely used for testing the tensile performance indexes of various metal, nonmetal, composite material, medicine, food, wood, copper, aluminum, plastic, wire and cable, paper, film, rubber, textile, aerospace and other industries. The utility model is applicable to users who only require relevant data such as compressive strength and tensile strength value. If more complex parameters are needed, The computer-controlled electronic universal testing machine is a better choice for hydraulic universal testing machine. It is mainly used for tensile, compression and bending tests of mechanical properties of metal, non-metallic materials, parts and other mechanical properties. The hydraulic universal testing machine is an ideal testing equipment for engineering, mining enterprises, building materials, quality inspection center, water conservancy and hydropower, bridge engineering, scientific research institutes, colleges and universities. The manual control of hydraulic 10000 Can test machine, cheap price, suitable for industrial and mining enterprise finished product inspection, single material index test. Large tonnage electronic tension machine can also use hydraulic fixture, the power source of electric tension is motor, the key is non-metal.




液压动力源为液压油,以大吨位金属为主.电动拉力起源于20世纪50年代,开始于美国.测量了主降落伞.因为当时的大多数试验机都富含金属.


The hydraulic power source is hydraulic oil, which is mainly composed of large tonnage metal. The electric tension originated in the 1950s and began in the United States. The main parachute was measured, because most testing machines at that time were rich in metal.