电梯基础知识-6 门系统

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6 门系统

Door system

门系统作为整部电梯的一个子系统，是电梯的一个重要组成部分。它是电梯的使用者进出电梯的通道，是电梯乘客使用电梯首先接触的电梯部件，它的质量好坏，能够从感官上直接影响电梯的使用者对整个电梯的质量评估。

As an integrated and important part in lift, door system is used as a passage for passengers. It is the first unit passengers will encounter, so its quality has a direct impact on the whole evaluation of the lift.

如前所述，电梯门主要有两类，滑动门和旋转门，目前普遍采用的是滑动门。旋转门在小型公寓用得较多，厅门在轿厢停站后拉（推）开，当轿厢不在层站时厅门锁住。这种门几乎不占用井道空间，特别适用于无轿门电梯。

From above mentioned, there are two types of doors: sliding door and rotary door and the former is frequently used. For rotary door which is usually used in small apartments, landing door is pulled or pushed after car stops on landing; landing door is locked if car is not on landing. It hardly occupies any well space, so rotary door is especially applicable to life without car door.

滑动门按其开门方向又可分为中分式、旁开式和直分式三种。

According to its door open direction, sliding door can be classified into central-parting, partial-opening and vertical bi-parting door。

6-1 轿门系统及门机

Car door system and door operator

6-1-1 轿门系统

Car door system

轿门系统由轿门头、门吊板、轿门、安全触板(或光幕)等部件构成。见图6-1

Car door is composed of car door head, door sling board, car door and safety edge (or light curtain), as shown in figure 6-1.

轿门头由3mm钢板压制，固定在轿厢顶前部，上面装有导轨，轿门就在此导轨的支撑与导向下运行。

Made of 3mm steel board, car door head is fixed in the front of car top. On door head is mounted guide rails; supported and guided by rails, car door is running.

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轿门吊板起悬吊轿门的作用。在门吊板的上面装有两组悬吊滚轮，支撑在导轨上，在悬吊滚轮的带动下，轿门沿导轨作滑动运行。在悬吊滚轮的下方，由两组装有偏心轴的锁紧滚

轮，它卡在导轨的下侧，可通过调整偏心轴来调整锁紧滚轮同导轨下侧的间隙，以防止门吊板从导轨上脱落。

Car door sling board is used to hoist car door. On sling board are mounted two groups of sling rollers to support rails. Driven by sling rollers, car door will slide along guide rails. Below the sling roller are two groups of lock rollers with deflecting axis, which are fastened below guide rails; the gap between lock roller and lower space of guide rails

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can be adjusted by means of deflecting axis, to prevent sling board from falling out of rails.

普通钢轿门由1.5mm冷轧钢板压弯成形，背后加焊横筋组成。也可根据用户及轿厢装潢要求，在普通钢轿门上粘0.7mm厚发纹不锈钢或镜面不锈钢板。

Ordinary steel car door is made of 1.5mm cold reduced steel board, with back welded. According to customers’ request and car decoration, ordinary steel door can be stuck with 0.7mm thick-hair-line stainless steel or glass stainless steel boards.

轿门也可以直接用1.5mm的不锈钢制成。

Car door can also be made of 1.5mm stainless steel.

门安全触板是安装在轿门上的安全部件。在中分门电梯的轿门上，可根据用户的要求安装双安全触板或单安全触板。安装调整好的安全触板外边，总是探出门边26mm。在轿门关闭时，若触板碰到乘客或物品，触板的开关闭合，给开门机信号，使轿门重新打开，从而起到安全保护的作用。

As safety part, door safety edge is mounted on car door. Central-parting door can be equipped with double safety edge or single safety edge, according to customers’ request. Exterior hem of safety edge is always protruding door edge by 26mm. When car door is closing, if safety edge touches passengers or object, safety edge switch will close, giving off door-open signals, making car door re-open, thus playing a role in protecting.

现代电梯大多用光幕代替安全触板起保护作用。

Most modern lifts are equipped with light curtain to replace safety edge.

6-1-2 门机

Door operator

门的关闭、开启的动力源是门电动机，通过传动机构驱动轿门运动，再由轿门带动厅门一起运动。

As power provider for closing and opening door, motor will drive car door to move, which will drive landing door to move.

根据电梯的使用要求可以选择适当的传动系统，例如OTIS 的MRDS门机采用齿轮传动，而蒂森的F5门机采用的是齿带传动等。

Driving system can be chosen according to lift application. For instance, OTIS MRDS door operator adopts gear driving, while Thyssen F5 door operator does gear belt