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施工升降机的安全管控要点

来源:http://www.jlsjj.cn     发布时间:2021-12-31   浏览次数:

施工电梯通常称为施工升降机,这里只介绍施工现场的建筑用施工电梯。是一种采用齿轮齿条啮合方式或钢丝绳提升方式,使吊笼作垂直或倾斜运动,用以输送人员和物料的机械。
Construction elevators are usually called construction elevators. Here we only introduce the construction elevators on the construction site. It is a kind of machinery that uses gear rack meshing mode or steel wire rope lifting mode to make the hanging cage move vertically or obliquely to transport personnel and materials.
二、安全控制要点
2、 Key points of safety control
1.设专用开关箱,生产厂家配置电气箱内应装设短路、过载、错相、断相、及零位保护装置。
1. A special switch box shall be set, and the manufacturer shall configure the electrical box, which shall be equipped with short circuit, overload, phase dislocation, phase failure and zero position protection devices.
2. 升降机梯笼周围应按使用说明书的要求,设置稳固的防护栏杆,各楼层平台通道应平整牢固,出入口应设防护门。全行程四周不得有危害安全运行的障碍物。地面防护围栏的高度不应低于1.8m。
2. Stable protective railings shall be set around the elevator cage according to the requirements of the operation manual, the platform channels of each floor shall be flat and firm, and protective doors shall be set at the entrance and exit. There shall be no obstacles endangering safe operation around the whole journey. The height of ground protective fence shall not be less than 1.8m.
3. 升降机的防坠安全器在有效的标定期限内使用,有效标定期限不应超过一年。使用中不得任意拆检调整。
3. The anti falling safety device of the elevator shall be used within the valid calibration period, which shall not exceed one year. It is not allowed to disassemble, check and adjust arbitrarily during use.
4. 断绳保护装置:断绳保护装置是因提升钢丝绳断裂而瞬时制动的一种安全装置。此装置须动作迅速灵活、准确可靠,且复位和维修容易,不可自动或电动复位。它是SS型、 SCD型施工升降机和非常重要的安全设施,其是否可靠直接关系到使用中机械及人员的安全。
山东升降机
4. Rope breaking protection device: the rope breaking protection device is a safety device for instantaneous braking due to the fracture of lifting steel wire rope. The device must be fast, flexible, accurate and reliable, easy to reset and maintain, and can not be reset automatically or electrically. It is SS and SCD construction elevators and very important safety facilities. Its reliability is directly related to the safety of machinery and personnel in use.
5.连锁控制开关(外门机械连锁开关、进出料门限位开关):吊笼进出门均设有连锁开关,只有当吊笼门完全关闭后,吊笼才能启动。在运行过程中如果吊笼门开启,吊笼停止运行。基础防护围栏门(底笼门)上设有连锁开关,只有当吊笼位于底部规定位置时,基础围栏门才能开启。吊笼顶部的安全出口设有连锁开关,当安全门开启时,吊笼不能启动。各层站层门设有连锁开关。
5. Interlocking control switch (mechanical interlocking switch of external door and material inlet and outlet threshold switch): the inlet and outlet doors of the cage are equipped with interlocking switches. The cage can be started only after the cage door is completely closed. During operation, if the cage door is opened, the cage stops running. The foundation protective fence door (bottom cage door) is equipped with an interlocking switch. The foundation fence door can be opened only when the lifting cage is at the specified position at the bottom. The safety exit at the top of the cage is equipped with an interlocking switch. When the safety door is opened, the cage cannot be started. The landing doors of each landing are equipped with interlocking switches.
6. 行程和极限控制开关(上下限位开关、极限开关)
6. Travel and limit control switch (upper and lower limit switch, limit switch)
行程限位开关:吊笼等装置到达行程终点时自动切断控制电路的安全开关。行程限位开关由上下限位开关组成。如果强制减速开关未能使吊笼减速停止,限位开关动作,迫使吊笼停止。
Travel limit switch: a safety switch that automatically cuts off the control circuit when the cage and other devices reach the end of the travel. The travel limit switch is composed of upper and lower limit switches. If the forced deceleration switch fails to slow down and stop the cage, the limit switch acts to force the cage to stop.
极限控制开关:吊笼等装置超越行程终点时自动切断电源电路的安全开关。极限开关由上下极限开关组成,其作用是当吊笼运行超过限位开关和越程后,极限开关将切断总电源使吊笼停止运行。极限开关是非自动复位的,动作后只能通过手动复位才能使吊笼重新启动。
Limit control switch: a safety switch that automatically cuts off the power circuit when the cage and other devices exceed the end of the stroke. The limit switch is composed of upper and lower limit switches. Its function is to cut off the main power supply and stop the operation of the cage when the operation of the cage exceeds the limit switch and overtravel. The limit switch is not automatically reset, and the cage can only be restarted by manual reset after action.

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