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道岔是把一条轨道种为两条或两条以上的轨道
使机车车辆由一条线路转往另一条线路的基本设置
道岔号码使用辙叉号来表示的叉心两边工作边的交角称之为辙叉角辙叉角的余切值称之为辙叉号数
                  Turnout is put a rail branch into two or more than two track
      The locomotive is composed of a line is transferred to another line of the basic settings
Turnout number using crossing number to represent the angle, fork heart on both sides of the working edge,
      called the crossing angle, crossing angle of the cotangent value called a marsupial frog.
常用的道岔分为单开道岔对称道岔复式交分道岔和交叉渡线
Common switch is divided into single turnout turnout, symmetrical, Double Slip Switches and cross line
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道岔
道岔是特殊的轨道设备不仅影响列车运行安全而且使用寿命也比其他设备短现场的养护维修工作量大
Turnout is a special rail equipment, not only affects the safe operation of the train, and the service life is short than other equipment, on-site maintenance workload.
我国常用的单开道岔其主线为直线侧线由主线向左或向右岔出也称左开道岔和右开道岔其数量占各类道岔总数的90%以上
China's most commonly used single turnout, its main line is straight line, lateral line by line to the left or to the right fork, also known as the left and right turnout turnout, which accounted for more than 90% of the total number of various types of switches.

单开道岔特点

单开道岔是常见的铁路配件之一可动辙叉单开道岔的一种是指辙叉个别部件可以移动以何证列车过贫时轨线的连续消除单开道岔固定辙叉上存在的有害空间并可取消护轨同时单开道岔辙叉在纵断面上的几何下平顺也可以大大减少从而显著地降低单开道岔辙叉部位的止相互作用提高运行和平稳性延长辙叉的使用寿命
Single switch is one of the most common railway fittings, a movable turnout frog, refers to individual components can be moved, by what card train poor when trajectories are continuous, the elimination of single open harmful space existing fixed frog turnout, but also cancel the guard rail, and geometric single turnout frog in longitudinal section the ride can also be greatly reduced, thereby significantly reducing the interaction between single turnout frog parts of the wheel / rail, improve the operation and stability, prolong the service life of the frog.
长期的运营实践表明可动心轨辙叉的使用寿命为同型号高锰钢整铸辙叉的69倍养护维修工作量减少40%大大减少了机车车辆通过时的冲击力提高了单开道岔容许速度及施行舒适度

道岔号数及其类型的选用

选用道岔号数的原则应与通过速度牵引类型行车密度相配合并且符合铁道部的有关规定
The selection of switch number principle:should and through the speed,traction type,traffic density matched related regulations and in line with the national and the Ministry of railways.

通过道岔的容许速度

道岔的容许通过速度分为直向和侧向两种
Turnout is allowed to pass through the speed straight into the lateral to and two
对道岔直向容许通过速度的规定
On the switch to allow straight through the provisions of the speed
1在任何情况下各种轨型道岔的直向容许通过速度43轨的不得超过100km/h50轨的不得超过120km/h
2采用普通固定式辙岔的道岔在任何情况下通过速度不得超过120km/h
3固定式辙岔为普通止组合的道岔在任何情况下通过速度不得超过100km/h
单开道岔

单开道岔的构造和类型

单开道岔示意图
因产品生产批次具体型号不同页面计仅供参考详情可联系我们的销售人员进行具体核实
常见问题及解答
Common problems and Solutions
因产品生产批次具体型号不同页面计仅供参考详情可联系我们的销售人员进行具体核实

道岔的种类有哪些

按尖轨类型道岔可分为直线尖轨道岔和曲线尖轨道岔两种直线尖轨道岔的技术特点是尖轨较短两根尖轨可对称制造跟端为活接头扳动灵活稳定性圆需配置一台转辙机侧向容许通过速度一般为30 km / h曲线尖轨道岔的技术特点是尖轨较长两根尖轨不可对称制造跟端采用接头夹板连接稳定性好需配置两台或多台转辙机侧向容许通过速度一般为 35 km/h60 kg/m 止9号直线尖轨扒线尖轨单开道岔在我国城市轨道交通工程中均有广泛应用技术均较成熟可靠
According to the rail type, switch can be divided into linear split switch and curve split switch two. The technical features of linear split switch is the switch rail is short, two rail symmetric manufacturing, with end is a movable joint, pulling the flexibility, stability is a bit poor, need to configure a switch machine, lateral allowable by typically 30 km / h. The technical characteristics of sharp rail turnout switch rail curve is longer, two rail can not be symmetrical with the end of manufacturing, using the joint splint connection, good stability, need to be configured to two or more switch machine, lateral allowable by typically 35 km/h. 60 kg/m rail straight switch and curve rail turnout No. 9 are widely used in urban rail transit projects in China, are relatively mature and reliable technology.
单开道岔

为了限度地利用直线尖轨的合理性单开道岔设计时主要采用哪些方法

1减少尖轨跟端间隔尺寸以满足动能损失要求
2加大道岔导曲线半径以满足未被平衡离心加速度及未被平衡离心加速度时变率要求同时实留有余量
3加大道岔导曲线半渡应确保辙叉跟端与导曲线止的圆顺衔接
4减少尖轨跟端间隔尺寸在结股计时能够实现
1, to reduce the rail with end interval size to meet the requirements of kinetic energy loss;
2, plus a large turnout of guide curve radius to meet the unbalanced centrifugal acceleration and the unbalanced centrifugal acceleration time variable rate requirements, at the same time, proper redundancy;
3, plus a large turnout of guide curve radius is should ensure that the frog heel and the guide rail on curves round Shun cohesion;
4, to reduce the rail with end interval size can be realized in the structure design.
单开道岔

单开道岔总图设计方案是怎样的

道岔总图设计采用直线型尖轨直线型辙叉圆曲线型导曲线根据需要在直股或侧股设置绝缘如下所示其主要尺寸如下
道岔全长:LQ= 29 986 mm;
道岔前端长度:a =14 256 mm;
道岔后端长度:b =15 730 mm;
尖轨尖端前基本轨长度:q =2 410 mm;
尖轨长度:L0= 6 450 mm;
尖轨跟端工作边与基本轨距离:t + b =144 mm;
线路中心导曲线半径:=190 m;
辙叉前端直线插入段:K=1 558 mm;
辙叉及护轨部分采用与原道岔相同的结构型式
Turnout general layout design using linear rail, linear frog, curved guide curve, according to the need of insulation is arranged in the straight strands or side shares, such as shown in figure below, the main dimensions are as follows:
The total length of the switch: LQ= 29986 mm;
Switch front length: a =14 256 mm;
Switch back end length: B =15 730 mm;
Tongue tip before a basic rail length: Q =2 410 mm;
Rail length: L0= 6450 mm;
Rail with end of the working side and the basic rail distance: T + B =144 mm;
The center of the line guide curve radius: R=190 m;
Insert the frog front end section: K=1 558 mm;
The frog and the guard part adopts the structure type and the same original switches.
单开道岔

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