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卷帘门的弹簧的安装要注意的事项
2018-3-23 19:57:23
首先要把与扭簧连接的滑落逆向转至适当位置。所谓逆向就是卷帘下拉的方向,好让扭簧提前有个向上的回卷力。这个力量要大于卷帘重量的一半,另一半由另一个扭簧分担。
First, the slips connected with the torsion spring should be turned reverse to the appropriate position. Is the so-called reverse direction so that the shutter down, ahead of a torsion spring to rollback force. This force is more than half the weight of the rolling curtain, and the other half is shared by another twist spring.
那么它需要提前逆转多少圈呢?量一下滑轮的周长,再量一下卷帘的高度,就能算出需要提前逆转几圈,然后多转1至2圈,让扭簧在卷闸完全开启时仍然有一定的拉力,保持卷闸不自然下落即可。

So how many cycles does it need to reverse in advance? Measuring the circumference of the pulley and measuring the height of the rolling curtain, we can figure out that we need to reverse several laps in advance, then turn 1 to 2 circles more, so that the torsion spring still has some pull when the brake is fully opened, so that the brake can not fall down naturally.

一般的卷闸帘也有3米左右,普通的滑轮周长大约600厘米,那么滑轮就要提前逆转6圈。具体多少,要实际试验,因为扭簧的刚性不同,卷帘的重量不同以及跑道阻力等因素,都存在误差,所以最后以实际效果来调整预装逆向扭力为准。
The general sluice curtain also has about 3 meters, the ordinary pulley circumference is about 600 centimeters, then the pulley is to reverse 6 laps ahead of time. How much is the actual test, because there are errors in the factors such as the rigidity of the torsion spring, the weight of the rolling curtain and the resistance of the runway. Finally, the actual effect is used to adjust the pre assembled reverse torque.
逆转5圈以上,并不是件轻松的事,不过一般人都可以胜任。关键是万一松手,扭力的回放将是件比较危险的事,所以要采取必要的防护措施。
Reversing more than 5 laps is not an easy thing, but the average person can do it. The key is that in case of loosing, the replay of the torque will be a dangerous thing, so take the necessary precautions.
1 必须保证卷闸轴与固定支架用螺栓紧固好;
1 it is necessary to ensure that the sluice shaft is fastened with the bolt for the fixed support.
2 要戴好稍厚的手套,以防万一回转伤手;
2 wear a thick glove, in case of a revolving wound.
注意扭簧安装时的方向,逆转时为旋紧。逆转就是向卷闸关闭的方向转,因为安装弹簧时卷闸在关闭状态,所以需要把弹簧转至最大扭力点,以备回转时克服卷帘自重
Pay attention to the direction of the torsion spring installation, when the reversing is tightened. Reversing is turning to the closing direction of the rolling brake, because the brake is closed when the spring is installed, so it is necessary to turn the spring to the maximum torque point, so as to overcome the weight of rolling curtain when turning.
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