CN2238968Y - 磨煤机冷热风隔离门 - Google Patents

磨煤机冷热风隔离门 Download PDF

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Publication number
CN2238968Y
CN2238968Y CN 95239395 CN95239395U CN2238968Y CN 2238968 Y CN2238968 Y CN 2238968Y CN 95239395 CN95239395 CN 95239395 CN 95239395 U CN95239395 U CN 95239395U CN 2238968 Y CN2238968 Y CN 2238968Y
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China
Prior art keywords
air door
door
cold
push rod
hot wind
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Expired - Fee Related
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CN 95239395
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裴义兴
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YANGZHONG CITY WELDING HEAT TREATMENT EQUIPMENT FACTORY JIANGSU PROV
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YANGZHONG CITY WELDING HEAT TREATMENT EQUIPMENT FACTORY JIANGSU PROV
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Priority to CN 95239395 priority Critical patent/CN2238968Y/zh
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Publication of CN2238968Y publication Critical patent/CN2238968Y/zh
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Abstract

本实用新型提供了一种磨煤机冷热风隔离门。它由驱动装置,风门和锁紧装置组成,其特点是,驱动装置是由电机驱动的丝杆螺母机构组成,作为推杆的丝杆和固定在风门上的螺母配合,带动风门开关,推杆中心线与风门上的拉杆中心线重合。本实用新型的采用电驱动,应用范围广,机械使用寿命长,结构简单,操作方便可靠,并可手动操作。

Description

磨煤机冷热风隔离门
本实用新型涉及一种用于电厂磨煤机热风道和烟道的冷热风隔离门。
现有的隔离门主要有闸板门和气动热风门。其中气动热风门采用气动推杆带动风门开关,需要有大于0.5MPa的气源,这对一些小型电厂和老电厂很难办到,所以应用有一定局限性;同时由于气动装置的泄露,气源必须一直供气,零部件工作寿命低,工作环境恶劣也使气动元件易损坏;此外气动风门遇到故障等情况时不能手动开关门。
本实用新型的任务是设计一种应用范围广、机械使用寿命高、操作可靠,可手动开关的冷热风隔离门。
本实用新型的目的是这样实现的:控制风门开关的推杆采用电机驱动,驱动电机带动丝杆形式的推杆,推杆的丝杆与固定在风门一侧的螺母配合,带动风门开关。推杆中心线与风门拉杆中心线重合,推杆的丝杆采用矩形螺纹。
本实用新型的优点是,由于采用了电动丝杆推杆作动力件,动力大,运动平稳,操作简便,应用范围广;由于采用了矩形螺纹的丝杆,具有自锁功能,风门开或关之后即可断电,所有零部件即可停止工作,延长了机械使用寿命;电动推杆的中心线与风门拉杆的中心线重合,不存在开关门时的力矩不平衡情况,而开关门后风门自锁不会移动,因而设备操作可靠;此外电动装置出现故障时可以手动丝杆进行开关门。
下面结合本实用新型的附图作进一步说明。
图1为本实用新型主视图;
图2为图1的俯视图。
如图1所示,推杆(5)的丝杆与固定在风门(6)上的螺母形成丝杆螺母机构,它由驱动电机(1)带动,使风门(6)左右运动实现开关,锁紧电机(2)带动凸轮杆(4)实现风门的锁紧。
如图2所示推杆(5)的中心线与铰接在风门(6)上的拉杆(7)的中心线重合,使开关门的力矩平衡。

Claims (2)

1、一种磨煤机冷热风隔离门,包括驱动装置,风门和锁紧装置,其特征是:驱动装置由驱动电机(1)带动的丝杆推杆(5)和固定在风门(6)一侧与丝杆配合的螺母(3)构成,推杆(5)中心线与风门上的拉杆(7)的中心线重合。
2、根据权利要求1所述磨煤机冷热风隔离门,其特征是:推杆(5)的丝杆是矩形螺纹。
CN 95239395 1995-03-16 1995-03-16 磨煤机冷热风隔离门 Expired - Fee Related CN2238968Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 95239395 CN2238968Y (zh) 1995-03-16 1995-03-16 磨煤机冷热风隔离门

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 95239395 CN2238968Y (zh) 1995-03-16 1995-03-16 磨煤机冷热风隔离门

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CN2238968Y true CN2238968Y (zh) 1996-10-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102537244A (zh) * 2012-02-10 2012-07-04 周彦 石油抽油机带传动的皮带松紧度自动调整装置
CN107575883A (zh) * 2017-07-31 2018-01-12 华润电力(贺州)有限公司 一种锅炉制粉装置的热风门

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102537244A (zh) * 2012-02-10 2012-07-04 周彦 石油抽油机带传动的皮带松紧度自动调整装置
CN102537244B (zh) * 2012-02-10 2015-05-27 周彦 石油抽油机带传动的皮带松紧度自动调整装置
CN107575883A (zh) * 2017-07-31 2018-01-12 华润电力(贺州)有限公司 一种锅炉制粉装置的热风门

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