Why is the mechanism part important for swing barrier?
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Update time : 2018-08-02 17:58:00
Nowadays, pedestrian turnstile gates can be seen everywhere in the entrances and exits of various occasions. Swing barriers, which have the advantages of exquisite appearance, large passage, and fast passage, are the first choice for most people when they choose to install the access control system. The swing barrier gate is driven by motor to realize the management and operation of the passage of people. Its functions include blocking, releasing, and warning lights for illegal intrusion. According to the different driving modes of the swing barriers, there are multiple operation modes such as mechanical, semi-automatic, and fully automatic.
According to the size of the movement and the number of swing gates, it is divided into two specifications: single-motor type and double-motor type. The blocking mode can be divided into manual, semi-automatic and fully automatic.
The way to control the movement and stop of the swing turnstiles movement through the mechanical limit is called mechanical. This control mode can well realize the management and control of personnel entry and exit.
Controlling the movement and stopping of the movement through an electromagnet is called semi-automatic mode, while controlling movement and stopping of the movement through a motor is called full-automatic mode. Regardless of the type of control method used by the swing barriers, it is inseparable from the drive of the motor.
Generally speaking mechanism part actually includes mechanical part and motor part. The motor is a very frequently used part in the operation of security turnstiles. It is necessary to use a high-quality motor to achieve precise movement and efficient operation, and at the same time, it can extend the service life of the turnstile. Secondly, it is necessary to comprehensively consider power supply factors, outdoor rainproof factors, and harsh outdoor environments will increase the probability of failure of the turnstile. Therefore, Macrosafe only selects top Chinese motor brands to ensure stable performance, long service life and maintenance-free.
The mechanical part can be classified into two types: brushed motor and brushless motors. 1,Brushed motor:The main structure of a brushed motor is stator + rotor + brushes, which obtain rotational torque through the rotating magnetic field, thereby outputting kinetic energy.The brush and the commutator are in constant contact and friction, and play a role of conduction and commutation during rotation. 2.Brushless motors: in brushless motor, the work of commutation is completed by the control circuit in the controller (usually Hall sensor + controller, more advanced technology is magnetic encoder).
The brushless motor has no brush, the friction is greatly reduced during operation, the operation is smooth, and the noise is much lower. Without the brush, the wear of the brushless motor is mainly on the bearing. From the mechanical point of view, the brushless motor is almost a maintenance-free motor. When necessary, only need to do some dust removal maintenance.
So we can see that the difference between brushed motors andbrushless motors is whether they have commonly used brush-commutators. The servo DC motor is the current direction conversion by the graphite brush and the ring commutator installed on the rotor. The swing barrier using a brushless motor transmits the rotor position to the control circuit through the Hall sensor, so that the accurate time of the motor phase commutation can be obtained. 1. Low interference
The brushless motor removes the brush, and the most direct change is that there is no electric spark generated when the brush motor is running, which greatly reduces the electric spark's interference to the remote control radio equipment. 2. Low noise and smooth operation
The brushless motor has no brushes, the friction is greatly reduced during operation, the operation is smooth, and the noise is much lower. This advantage is a huge support for the stability of the model. 3 Long life, low maintenance cost.
Without brush, the wear of the brushless motor is mainly on the bearing. From a mechanical point of view, the brushless motor is almost a maintenance-free motor. When necessary, you only need to do some dust removal work.
That is why Macrosafe only use brushless motor from Chinese Top 3 brand.