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    道岔是把一條軌道分支為兩條或兩條以上的軌道
    使機車車輛由一條線路轉往另一條線路的基本設置
    道岔號碼使用轍叉號來表示的,叉心兩邊工作邊的交角,稱之為轍叉角,轍叉角的余切值稱之為轍叉號數。
                      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.
    常用的道岔分為單開道岔,對稱道岔,復式交分道岔和交叉渡線
    Common switch is divided into single turnout turnout, symmetrical, Double Slip Switches and cross line
    因產品生產批次、具體型號不同,頁面圖片僅供參考,詳情可聯系我們的銷售人員進行具體核實
    道岔
    道岔是特殊的軌道設備,不僅影響列車運行安全,而且使用壽命也比其他設備短,現場的養護維修工作量大。
    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.
    我國常用的單開道岔,其主線為直線,側線由主線向左或向右岔出,也稱左開道岔和右開道岔,其數量占各類道岔總數的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.

    單開道岔特點

    單開道岔是常見的鐵路配件之一,可動轍叉單開道岔的一種,是指轍叉個別部件可以移動,以何證列車過貧時軌線的連續,消除單開道岔固定轍叉上存在的有害空間,并可取消護軌,同時單開道岔轍叉在縱斷面上的幾何下平順也可以大大減少,從而顯著地降低單開道岔轍叉部位的輪軌相互作用,提高運行和平穩性,延長轍叉的使用壽命。
    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.
    長期的運營實踐表明,可動心軌轍叉的使用壽命為同型號高錳鋼整鑄轍叉的6~9倍,養護維修工作量減少40%,大大減少了機車車輛通過時的沖擊力,提高了單開道岔容許速度及施行舒適度。

    道岔號數及其類型的選用

    選用道岔號數的原則:應與通過速度、牽引類型、行車密度相配合并且符合鐵道部的有關規定。
    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.

    通過道岔的容許速度

    道岔的容許通過速度分為直向和側向兩種
    Turnout is allowed to pass through the speed straight into the lateral to and two
    對道岔直向容許通過速度的規定
    On the switch to allow straight through the provisions of the speed
    (1)在任何情況下各種軌型道岔的直向容許通過速度:43軌的不得超過100km/h;50軌的不得超過120km/h。
    (2)采用普通固定式轍岔的道岔,在任何情況下通過速度不得超過120km/h
    (3)固定式轍岔為普通鋼軌組合的道岔,在任何情況下通過速度不得超過100km/h。
    單開道岔

    單開道岔的構造和類型

    單開道岔示意圖
    因產品生產批次、具體型號不同,頁面圖片僅供參考,詳情可聯系我們的銷售人員進行具體核實
    常見問題及解答
    Common problems and Solutions
    因產品生產批次、具體型號不同,頁面圖片僅供參考,詳情可聯系我們的銷售人員進行具體核實

    道岔的種類有哪些?

    按尖軌類型,道岔可分為直線尖軌道岔和曲線尖軌道岔兩種。直線尖軌道岔的技術特點是尖軌較短,兩根尖軌可對稱制造,跟端為活接頭,扳動靈活,穩定性稍差,需配置一臺轉轍機,側向容許通過速度一般為30 km / h。曲線尖軌道岔的技術特點是尖軌較長,兩根尖軌不可對稱制造,跟端采用接頭夾板連接,穩定性好,需配置兩臺或多臺轉轍機,側向容許通過速度一般為 35 km/h。60 kg/m 鋼軌9號直線尖軌及曲線尖軌單開道岔在我國城市軌道交通工程中均有廣泛應用,技術均較成熟可靠。
    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.
    單開道岔

    為了限度地利用直線尖軌的合理性,單開道岔設計時主要采用哪些方法?

    1、減少尖軌跟端間隔尺寸以滿足動能損失要求;
    2、加大道岔導曲線半徑以滿足未被平衡離心加速度及未被平衡離心加速度時變率要求,同時適當留有余量;
    3、加大道岔導曲線半徑尚應確保轍叉跟端與導曲線鋼軌的圓順銜接;
    4、減少尖軌跟端間隔尺寸在結構設計時能夠實現。。
    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.
    單開道岔

    單開道岔總圖設計方案是怎樣的?

    道岔總圖設計采用直線型尖軌、直線型轍叉、圓曲線型導曲線,根據需要在直股或側股設置絕緣,如下所示,其主要尺寸如下:
    道岔全長:LQ= 29 986 mm;
    道岔前端長度:a =14 256 mm;
    道岔后端長度:b =15 730 mm;
    尖軌尖端前基本軌長度:q =2 410 mm;
    尖軌長度:L0= 6 450 mm;
    尖軌跟端工作邊與基本軌距離:t + b =144 mm;
    線路中心導曲線半徑:R=190 m;
    轍叉前端直線插入段:K=1 558 mm;
    轍叉及護軌部分采用與原道岔相同的結構型式。
    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.
    單開道岔

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