Serve to connect YEJ electromagnetic brake series three phase asynchronous motor selection of basic knowledge

Serve to connect YEJ electromagnetic brake series three phase asynchronous motor is made according to standard JB/T6456-92 countries of the three-phase asynchronous motor with electromagnetic brake disc type. Serve to connect YEJ electromagnetic brake 3-phase asynchronous motor electromagnetic brake function can be divided into electric braking and electrical braking. 1. The electric braking - electromagnetic brake is when electricity will brake motor, brake motor can run free when no electricity. Generally applicable to automatic lathe and require accurate positioning but does not need to maintain the mechanical equipment. Electric brake voltage www.facebook.com/dongfeng.motor generally used DC24V, also can use 380 v as required rectifier rectifier into DC99V DC170V or 220 v. 2. The loss of electric braking - electromagnetic brake is the motor brake when power outages. Brake in the loss of power to the motor brake, it is the most widely used electromagnetic brake three-phase asynchronous motor. Generally applicable to crane requirements but must keep accurate positioning requirement of mechanical equipment. Loss of electric brake is refers to the dc brake. Three-phase ac brake generally rarely used, is a new brake. 1) three-phase ac brake is three-phase ac brake technology, the introduction of Germany in the 90 s brake voltage to the voltage and frequency of the motor, the same general brake three-phase power cord and the three-phase winding of the motor directly connected in the terminal, usually without external power supply cord. 

Can be opened electricity combine instantaneously, simultaneously and start the motor and the electromagnetic brake, brake motor power. (2) dc brake is serve to connect YEJ electromagnetic brake 3-phase asynchronous motor brake of the most widely used. Generally AC380V brake power points (DC170V) and AC220V and DC24V (DC99V). DC24V dc brake generally applicable to the equipment itself come with DC24V power supply equipment, but generally there is no DC24V power supply equipment. In order to make the electromagnetic brake motors can easy to use, must be the same as the braking of the motor power supply voltage to ensure that as long as the function of electric power rotation can open the brake. Serve to connect YEJ three-phase ac 380 v motor can only provide two phase ac 380 v power supply by the half-wave rectifier rectifier dc 170 v, and YEJ100 stand if and under braking motor brake using dc 170 v power supply, brake line size is very fine and coil number of turns too much will make very difficult. And YEJ100 frame and the motor is to use the Y connection, so a line with a root from Y junction line of 220 v ac synchronous motor power supply cord by the half-wave rectifier rectifier dc 99 v. Therefore serve to connect YEJ electromagnetic brake series three-phase asynchronous motor is commonly 4 kw and above using two phase 380 v brake (rectifier into DC170V), 4 kw under the single 220 v brake (rectifier into DC99V). Serve to connect YEJ series of electromagnetic brake motor working principle and composition of the brake: Dc brake - main components: 1. The rectifying device (2) the static iron core (3) 4 coils armature 5. Spring nut 6 7. 8 manual screw release 9. Internal spline (lining). 10 spline. Working principle: rectification device is 1 in 380 v or 220 v dc output DC170V (or 99 v) to 3 coil, static iron core 2 to produce electromagnetic force to overcome the resistance of the spring may absorb the armature 4, internal spline (lining) 9 free running. 

Rectification device is 1, when the power is the static iron core 2 lose electromagnetic suction, armature 4 in 5 elasticity under the action of the internal spline (lining) 9 and motor end cover plane compaction, after the internal spline (lining) 9 immediately stop running, and the motor shaft with spline 10 connected, so that the motor shaft brake. Nut can spline asynchronous motor (lining), 6 to 9 wear, adjust the brake clearance after seven counts of fixed screw brake function. Manual release 8 is need to open the brake adjustment position during blackout auxiliary device for the manual release the brake. Ac brake - main components: 1. The three-phase terminal 2. Static iron core (3) 4 coils armature 5. Spring nut a, 6 b, c7. Screw 8 hand release device 9. Internal spline (lining). 10 spline. Works: three wire leads to coil on a three-phase ac 380 v 3 (consists of 6 string cable package 2 a set series into three groups according to the Y connection of the coil group), the static iron core 2 (by the cold rolled silicon steel sheet roll forming and machining) to produce ac electromagnetic force will overcome the resistance of the spring may put the armature 4 (by the cold rolled silicon steel sheet roll forming and processing) and, internal spline (lining) 9 free running. After power, static iron core 2 lose electromagnetic suction, armature 4 in 5 elasticity under the action of the internal spline (lining) 9 and motor end cover plane compaction, after the internal spline (lining) 9 immediately stop running, and the motor shaft with spline 10 connected, so that the motor shaft brake. Nut (6) a, b, c can, spline (lining) 9 wear, adjust the brake clearance after seven counts of fixed screw brake function. Manual release 8 is need to open the brake adjustment position during blackout auxiliary device for the manual release the brake. Manual release is divided into two kinds: The first: HF with locking of the manual release, namely on the motor brake has a locking bolt, hex, tightening, can open the brake, specifically how much torque, you'll know it in field test. After the repair, be sure to loosen the bolts, or brake has been in a state of failure. The second: HR to take back the manual release, namely on the motor brake has a release lever, just pull the manual release lever, can open, let go is returned braking state.