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The Classification And Components Of The Tripod Turnstile Gate
- Jan 31, 2018 -

The classification and components of the tripod turnstile gate


Classification of three roll brake core:

The general automatic three roll brake core: the general automatic three roll brake core is completed when the motor is combined with the special-shaped groove wheel organization. When passing, it automatically rotates forward the necessary viewpoint, and the pedestrian touches the brake rod to pass through.


Mechanical reverse and reverse three roll brake core: mechanical anti reverse three roll brake core is improved on the basis of simple electromagnet core, and it can finish, reverse reverse and buffer function.


Mechanical simple electromagnet three - roll brake core: mechanical simple electromagnet three - roll brake is simple and easy to use, simple function.


Full automatic mute three roller gate movement: automatic mute three roller gate movement is based on the foreign mainstream high speed three roller gate on the selection of the new ARM control skills, selection of control processing mode of industrial grade to the end of a new product, the product operation in the process of starting and stopping machine are very smooth the end, can quickly brake lock, is the industry with multi sensor and multi section head end mute automatic three roller gate, is China's first successful and in many prisons equipped with high-speed mute automatic turnstiles.


The composition of the three roll brake core:

Three roller gate machine mainly comprises a main shaft, an electromagnet, cam, cam, positioning toothed stroke switch, spring, damper, rod falling equipment. When the three roller gate driver board (hereinafter called driver board) receives a gate signal, a relay is closed, the corresponding electromagnetic conduction, promote contraction of the lock arm is short, from determination of the dentate cam, when the pedestrian only quietly push rod, can be exempted from certain direction pass along the line. With the rolling spindle, once the stroke switch touch screw, the former to the drive plate a signal indicating the pedestrian has passed the end of action; together, electromagnet rehabilitation to original condition, out of the lock arm, a positioning cam, the positioning rod (including bearing connected), damper, spring start operation, elastic energy the buffer just accumulated, until the lock arm again and toothed cam effect. The rod drop equipment is installed on the bearing seat 2#. Once the power is broken and the lock rod is down, the clear channel is formed.


Locking equipment


It is determined that the action is completed by holding the head of the lock arm stuck in the teeth of the rack cam group. As a part of the rack cam group, the polyurethane toothed cam reduces the noise that the lock arm moves on the cam tooth. The outline of the cam enables the spindle to be locked every 5 seconds when the spindle is rotated. The lock arm is mounted on the base of the pivot through the pivot and can be swayed by the suction of the electromagnet installed on the base. During that time an electromagnet locked clockwise and the other locked the counter clockwise direction. The excitation of the electromagnet causes the lock arm to move, meshing with the cam tooth, and then obstruct the three - roller sluice to rotate in this direction. When the electromagnet is powered down, the lock arm in the spring under the effect of the return to the original position, stuck cam.


Anti reversal equipment


The function of anti reversal equipment is to obstruct the rotation unit to carry on the opposite direction to the original direction. That is to say, once the three lever arm in one direction rolling rolling, the device will obstruct it in the opposite direction. The lock arm 1# in electromagnet under the effect of left with limited range of agile, to determine the cam 1# from the dentate. At the moment the lock arm 2# spindle positioning cam bearing 2# bearing 1# spring damper stroke switch cam lock arm 1# 2# dentate toothed cam 1# electromagnet positioning rod bearing figure lock arm screws and no action, still constrained rolling in the opposite direction of the toothed cam 2#.


Positioning cam


The positioning cam is a specially outlined Guide (as shown below). In the guide, the three point center of the shortest interval between 120 degrees and three gate range they correspond to the three bar. The three points are connected by the three segments that rise and fall. Three arm rod drives the positioning cam two positioning rod rolling, instigated attack about linear movement. One end of the positioning rod connection bearing, the other end connected damper (during a connecting spring). Once the bearing through the cam rail vertex, both spring and damper which makes the pressure of the rotating unit rotate continuously until the three arm back gate range. The length of the spring preload can adjust by screw.




The function is to adjust the damper spring force, buffering effect of the whole spinning process. In the first half of the rotation process (that is, the lift in the positioning cam), the damper expands; while in the latter half of the rotation process (that is, the descending), the damper is shortened. In the whole rotation process, the damper can play the cushioning effect according to the rotation speed, and it can adjust the scale of the oil according to the size of the force, 1-8 (from small to large and vice versa).


Stroke switch


The function of the stroke switch is that when the brake rod rotates to a certain viewing point (about 110 degrees), the trip switch on the reductor touches the screw, automatically detects a location signal and transmits the signal to the three roller brake driving plate.


Three arm (turntable)


The turntable by three bolts mounted on the main shaft, which is composed of three brake lever, three rotating block and a spring piece with drop lever. Not to fall in the case of rod, brake rod between the three view of equality, during a stick, from the gate effect.