How to repair the common faults of automatic doors?

Abstract: Automatic doors are mostly used in public places and can be seen in hotels, airports and restaurants. Although the automatic door is good, once it is broken, it is also a troublesome thing. People outside can't get in, and people inside can't get out. So, do you know what are the common reasons for automatic doors? How to repair the common faults of automatic doors? Next, let's take a look at the relevant knowledge of automatic door maintenance with Bian Xiao. Automatic door maintenance What are the causes of common failures of automatic doors? How to maintain the common faults of automatic doors?

What are the common faults of automatic doors?

First, the automatic door is too slow when the door leaves open and close.

(1) The speed adjustment of the controller is too slow.

(2) Abnormal voltage.

(3) The belt may be too loose.

(4) Stop the friction between the wheel and the rail.

(5) The movable door leaf may rub against the floor or the guide rail or the fixed door leaf.

Second, the automatic door keeps opening and closing.

(1) There are moving objects in the sensing range, such as pedestrians, vehicles, colorful flags and even the shadows of trees.

(2) When the automatic door switch encounters obstacles, the detection range of the induction probe may be adjusted downward. When the door leaf is about to close, the probe senses the movable door leaf or other obstacles, and the detection and induction device mistakenly thinks that someone is moving, so that the door leaf is opened again.

(3) The failure of the radar sensor may cause the upper beam plate of the fixed induction probe to shake, so that the probe shakes and the door leaves remain open and closed. .

Three, the door leaf jitter when the automatic door is running

(1) There are obstacles or wear on the underground guide rail or swing stop.

(2) The crane and track in operation are worn or blocked.

Fourth, the automatic door leaf can't be opened.

(1) sensor failure, check whether the sensor light signal is normal.

(2) The belt falls off.

(3) The wire connector is loose (short circuit).

(4) The controller is burnt out.

(5) The motor may overheat and return to normal after cooling.

(6) Foreign objects are stuck.

(7) Abnormal voltage.

How to repair the common faults of automatic doors?

First, the automatic door is too slow when the door leaves open and close.

When there is nothing wrong with the door body of the automatic door, first lubricate all the moving parts of the automatic door, adjust the belt tightness or controller, and finally check the adjustment voltage to see if the speed of the automatic door is normal. If not, please check and maintain according to the following methods:

1. Abnormal pulley of track and automatic door: This reason may account for the largest proportion. After the automatic door runs under heavy load, the most common wear parts are pulleys and guide rails. If it is not replaced in time, the door leaf will jump and run slowly.

2. Abnormal lower guide system of automatic door leaf: if the ground anti-swing wheel, external anti-swing device and U-shaped anti-swing groove are worn and deformed, the door leaf will be blocked, unsmooth, slow and swing.

3. The motor or controller is damaged: This kind of problem is rare and certainly not absolute. For example, the control signal of the controller causes the automatic door machine to learn at low speed all the time, or the gearbox of the motor (automatic door motor assembly) has problems, which leads to the wear of the variable speed turbine, or it can not be closely meshed, and there will be failures such as weak operation and jitter.

Second, the automatic door keeps opening and closing.

Check whether there are obstacles or moving objects in the sensing range of the automatic door first, and clean them up in time. If not, check whether the test sensor works normally. If it doesn't work properly, replace it.

Three, the door leaf jitter when the automatic door is running

The traveling wheel of the door leaf spreader has been worn for a long time. If it is only slightly worn, you can clean the crawler and the traveling wheel once, or add a little lubricating oil to the bearing of the traveling wheel, but the crawler and the plastic traveling wheel cannot be oiled, because it is easy to absorb dust after oiling, which will damage the traveling wheel faster.

Some metal joints are loose and only need to be reinforced. The damage of the lower guide rail system will also cause loud noise and shaking of the door leaf. The movable door leaf and the fixed door leaf appear noise jitter due to friction. The upper beam was not well built in the initial construction, or it rattled with the ceiling above.

Fourth, the automatic door leaf can't be opened.

1, the door leaf does not move, of course, first check whether there is power supply for it, if it is because of power failure, just connect the power supply.

2. Whether the movable door leaf mops the floor. If this happens, the door will be difficult to start, and the main controller will think that there is an obstacle and carry out self-locking protection to prevent the door leaf from moving.

3. Check whether the wheel part of the door leaf spreader is off track. If this happens, the door leaves will not go.

4. Check whether the induction automatic door is equipped with "safety light". Dust covering the light receiver of the safety light will also cause misoperation, which will make the main controller of the automatic door mistakenly think that there is an object in the middle of the door leaf, thus stopping the door from closing.

5, in turn, check whether there are foreign bodies, check the voltage, sensors, controllers, belts, wire connectors and other components.