a
Selection of driving mode of flying shear

Selection of driving mode of flying shear

曲柄连杆式飞剪机总体上有两种驱动方式：一是单电机驱动主轴，而另一对剪切轴由齿轮啮合来传递力矩进行驱动;另一个方式是，由两台电机分别驱动两根主轴。下面将两种方式的特点进行比较，以便选出更加合适的设计方式，来满足此次的设计要求。　　 　　1.单电机传动方式：　　由于其由一个电动机做动力源，其中输入轴是由电机直接进行驱动，而另一对剪切轴式通过安装在输入轴与剪切轴之间的齿轮啮合来进行传动的。这样可以明显的
Development of flying shear

Development of flying shear

机用于剪切横向运动着的轧件，其开始于十九世纪末期，经过百年的发展，在生产过程中使用的飞剪类型教多。目前，较广泛应用的飞剪形状为:圆盘式飞剪、滚筒式飞剪、曲柄连杆式飞剪。　　 　　曲柄偏心式飞剪、摆式飞剪、曲柄连杆式飞剪等，以目前飞剪的使用情况和线材生产的发展要求可以看出，飞剪存在以下两个方面的发展趋势：　　(1)剪机的剪切断面质量要求提高，这要求剪切机刀刃在剪切区域内沿水平方向的速度应与轧件最大速
Adjust and install the flying shear

Adjust and install the flying shear

a.安装　　飞剪机安装时除应满足图纸上的技术要求外，还应遵守下列规范：　　(1)冶金机械设备安装工程施工及验收规范通用规定：　　YBJ201-80　　(2)冶金机械设备安装工程施工及验收规范-液压、气动和润滑系统的规定：207-85　　(3)冶金机械设备安装工程施工及验收规范-轧钢设备：　　YB9249-93。其中飞剪机的安装精度采用I级。　　(4)剪机上电气设备的安装应相应的国家或行业标准。　　
Rotary flying shears

Rotary flying shears

滚筒式飞剪机是一种应用很广的飞剪机。它在设在连轧机组或横切机组上，用来剪切厚度小于12mm的钢板或小型型钢。这种飞剪机作为切头飞剪机时，其剪切厚度可达45mm。滚筒式飞剪机的刀片作简单的圆周运动，故可剪切运动速度高达15m/s以上的轧件。　　 　　图9-1是滚筒式飞剪机结构示意图。刀片1装在滚筒2上。滚筒2旋转时，刀片1作圆周运动。用于切头切尾的滚筒式飞剪机，在滚筒上往往装有两把刀片，分别采用切头
Crank rotary flying shears machine

Crank rotary flying shears machine

用飞剪机剪切厚度较大的板带或钢坯时，为了保证剪后轧件剪切断面的平整，往往采用刀片作平移运动的飞剪机。曲柄回转杠杆式(也称曲柄连杆式)飞剪机就是此类飞剪机的一种。　　 　　图9-3是曲柄连杆式飞剪机结构图。刀架1作成杠杆形状，其一端固定在曲柄轴2端部，另一端与摆杆3相连。当曲柄轴2转动时，刀架1作平移运动，固定在刀架上的刀片能垂直或近似地垂直轧件。　　由于这类飞剪机在剪切轧件时刀片垂直于轧件，剪切断
Start work to make the length of fly shear

Start work to make the length of fly shear

这种工作制的飞剪机用来对轧件进行切头、切尾和剪切长度较长而速度较低的定尺轧件。飞剪机的气动和制动是制动进行的。当轧件头部作用于装设在飞剪机后的光电装置，飞剪机便自动启动。轧件的定尺长度L按下式确定　　L=L’+V0t0　　L’—光电装置与飞剪机间的距离　　t0—飞剪机由启动到剪切的时间　　 　　在调节定尺长度时，通常不采用移动光电装置位置的方法(即改变L’值)，而是通过时间继电器或可编程序控制器来
Rotary flying shear

Rotary flying shear

回转式飞剪机主要装设在小型和线材连轧机组上，用来对轧件进行切头、切尾和切定尺。　　 　　图9-28表示了连续工作制的回转式飞剪机传动简图。连续运转的电动机4通过一对高转矩、低惯量的气动离合器2和制动器1来控制剪切机构的启动、剪切和制动。这一飞剪机的主要特点是通过四个直径相等的齿轮Z1、Z2、Z3和Z4来连接上下刀架的传动轴。这样，在刀架旋转半径相同的情况下，其传动齿轮的直径只是采用两个齿轮传动(参
Our company rolling mill gear box structure features

Our company rolling mill gear box structure features

Gearboxtype:allthegearboxesofhorizontalrollingmillaredividedhorizontally,andthetransmissiongearsofalllevelsarearrangedasfaraspossibleatthedividingsurfaceofthegearbox.Thegearmeshingpartofthereducerhaso
The box structure of reducer of rolling mill

The box structure of reducer of rolling mill

The box body is an important part of the gear box. It bears the reaction force from the transmission of the gear. It must have enough rigidity to bear the force and torque, prevent deformation and ens
Maintenance of reduction gear of rolling mill.

Maintenance of reduction gear of rolling mill.

V. if the gear box stops in the production process and the oil is stopped for more than 8 hours before starting, it shall comply with the requirements of "v. start". Especially in winter, if the oil i
Matters needing attention for starting reducer of rolling mill

Matters needing attention for starting reducer of rolling mill

1.Thefollowinginspectionsshallbecarriedoutbeforestart-up:  1)whethertheinstallationofpressuregauges,electriccontactflowmetersandotherdevicesisfirmandreliable,andwhethertheactualdataiscorrect,shallbeli
Safety precautions for use of reduction gear of rolling mill

Safety precautions for use of reduction gear of rolling mill

1.Beforeuse(installation,operation,maintenance,spotcheck,etc.),theusermustreadthisoperationmanualandotherattachedmaterialscarefullyanduseitcorrectly.Theknowledgeofthemachine,safetymattersandmatterstob
Rolling mill reducer lifting, transportation and installation

Rolling mill reducer lifting, transportation and installation

If R BBB 0 200mm is needed, the axial runout value can be increased accordingly. 7. Input and output shaft couplings must be installed in accordance with their standards. It is not allowed to force
Hot rolled wide strip mill and production technology

Hot rolled wide strip mill and production technology

Hotrolledcoilproducedbyhotrolledwidestripmillcannotonlybeuseddirectlyforthinsheetandmediumplate,butalsobeusedasrawmaterialforcoldrolled,weldedpipeandcoldformedsteelinthenextprocess.Hotstripmillhasbeco
Development of steel tube mill

Development of steel tube mill

Industrialdevelopedcountries,suchastheUnitedStates,Japan,Germany,etc.allhavealargenumberofmodernhot-rolledsteelpipeequipment,mainlyautomaticrollingpipemillandcyclerollingpipemill.Thesteelpipeproducedb
Cold rolled wide strip mill and production technology

Cold rolled wide strip mill and production technology

Inrecentyears,coldrolledsteelsheetandstriphavebeendevelopedgreatly.Theoutletspeedoftheendstandofthetandemcoldmillcanreach25-41.7m/s.Inordertoincreaseproduction,thevolumeofcoldcoilhasreached60t.Atandem
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