I notice

Before installing the three roll brake, please note the following:

1 before equipment installation and maintenance, please disconnect the power supply.

2 products must be fully grounded.

3 suggest you use 2.0mm2. The power cord.

4 do not change the inside of the product line.

5 please control button, the remote control equipment away from children.

6 working condition, do not allow to open the lid of the product.

7 children under the care of adults, to pass.

8 semi automatic three roller gate without electricity, then lift the bar

Product description.

Three roll brake is a product of high efficiency and safety control for pedestrian traffic. Interior design is simple, according to customer demand, the internal chassis has enough space to integrate other kinds of access control systems, various types of display, pedestrian counter, card reader, token card reader, direction indicator, operation table, unauthorized access to the alarm system, but also through RS232 or RS485 and computer communication, the unique power off automatically bring great security bar function to pass under the state of emergency. In an emergency, a high density pedestrian can be quickly clear to ensure safety. Three roller gate can be a very safe environment, widely used in tourist attractions, office buildings, office buildings, schools, stadiums, docks, railways, high-grade areas, etc..

I illustrate the movement

Three roller brake movement mainly by the main shaft, the electromagnet, the toothed cam, the positioning cam, the travel switch, the damper, the spring, falls the rod device the composition.

When the three roller gate driver board (hereinafter called driver board) received gate signal, one relay is closed, the corresponding electromagnetic conduction to the lock arm shrink, unlock the toothed cam, when the pedestrian just gently push rod, can be unlocked in the direction along the line.

With the rotation of the spindle, once the stroke switch touch screw, the former to the drive plate is a signal that the pedestrian has passed, the completion of the action; at the same time, the electromagnet is restored to the original state, out of the lock arm, a positioning cam, the positioning rod (including bearing connected), damper, spring starts working, elastic energy the buffer just accumulated, until the lock arm again and toothed cam.

Drop lever device mounted on the bearing seat of No. 2, once the blackouts, brake rod falling, forming a transparent channel.

One locking device

The locking action is achieved by locking the head of the lock arm to clamp the teeth of the dentate cam group.

As the cam cam dentate part of the dentate group polyurethane reduce the lock arm in the cam tooth movement noise.

The cam profile makes it possible for the spindle to be locked in 5 seconds each time. (card does not push rod)

The lock arm is pivotally mounted on the base, and the electromagnet is installed on the base of the pull and swing. One of the magnets is locked in a clockwise direction and the other one is locked in a counter clockwise direction.

The excitation of the electromagnet causes the lock arm to move, and is engaged with the cam gear, so as to prevent the three roller from turning in the direction of the lock. When the electromagnet is powered down, the lock arm returns to the original position under the action of the spring.

Anti reverse device.

The function of the reversing device is to prevent the rotation unit from rotating in the opposite direction of the original direction. That is to say, once the three lever arm in one direction of rotation, rotation of the device will stop it in the opposite direction.

In figure (1), the lock arm 1# under the action of the electromagnet, quickly moved to the limit position, the lifting of the dentate cam 1# lock. At this point, the lock arm 2# does not move, and still limits the rotation of the toothed cam 2# in the opposite direction.

Positioning cam

The positioning cam is a guide rail with a special profile (as shown in Figure 2). In the guide, the three point center of the shortest distance between 120 degrees apart, three bars, their position corresponding to the three bar. These three points are connected by the three segment rising and falling.

Three arm rod drives the positioning cam to rotate, drive two positioning rod about linear movement. One end of the positioning rod is connected with a bearing, and the other end is connected with a damper (one of which is connected with a spring).

Once after bearing cam vertices, two springs and dampers formed due to the pressure of rotating unit continues to rotate until the three arm back fence position. The preload length of the spring can be adjusted by the screw.

damper

The function of the damper is to adjust the spring force, and to buffer the whole process of rotation.

In the first half of the rotation (that is, the positioning cam lift), the expansion of the damper, and in the latter half of the rotation process (that is, the reduction process), the damper contraction. In the whole process of rotation, the damper according to the rotation speed proportionally to play a buffer role, can be adjusted according to the size of the pressure of the hydraulic scale, 1-8 (from small to large, and vice versa)

Stroke switch

The travel switch function is when the brake rod rotates to a certain angle (about 110 degrees), stroke switch reset device on the contact map (1) screws shown in the automatic detection of a signal and the signal transmission in the three roller gate drive plate.

Brake lever (turntable)

The rotary disc is arranged on the main shaft by three bolts, which is composed of three gate bars, three rotating blocks and a spring sheet for a falling rod. In the case of no falling rod, the angle between the three gate is equal, one of which keeps the level, and plays the role of blocking.

Falling rod device

As the figure (3), the electromagnetic device is installed on the bearing seat of 2#, in the case of electricity, and it does not block action, this time to turn a piece of spring force, the brake rod stuck, cannot drop lever. When the device is activated, the electric power is broken off, the impact is turned off, and the power is separated from the brake lever to form a certain gap.

The brake lever is in the vertical state under the action of the gravity.