AZM series three-phase power-off brakeDetailed product description：

The AZM series (power-off braking type) three-phase AC brake is a reliable and safe type of brake. It has the characteristics of fast start-up time and short braking time. The excitation voltage is the same as that of the motor, with simple wiring and easy operation.

The AZM series three-phase AC brake has a compact product structure and convenient adjustment of braking torque and air gap. The manual release device has a dual function, and the brake can be temporarily disengaged by gently pulling the release ring. By using the screw insertion and release method, the braking state can be disengaged for a long time, and the operation is easy and reliable. The protection level of this product can reach IP55.
The AZM series three-phase AC brake can be directly used for variable frequency power supply. Frequency conversion power supply can be directly used for frequencies below 50Hz, and can be designed for frequencies above 50Hz if required.

The AZM series three-phase AC brake fully meets the requirements of being matched with Y and Y2 series motors to form YEJ series electromagnetic brake three-phase asynchronous motors, and can also be matched with variable frequency motors to form variable frequency brake motors. By utilizing its advantages of high braking torque, short braking time, convenient wiring, and high protection level, it can be widely used in various mechanical equipment that require fast braking and precise positioning.

Working Principle:
According to the AZM series three-phase AC brake, when the power is off, it uses spring pressure to press the armature tightly, causing a huge friction (braking) torque between the brake disc and the armature and the rear end cover of the motor, which can quickly brake rotating objects; When powered on, the principle of electromagnetic attraction and release is used to release the brake disc from the braking state, allowing the passive object to rotate freely.

Technical parameters:

Specification code	AZM71	AZM80	AZM90	AZM100
Matching YEJ motor frame number H	seventy-one	eighty	ninety	one hundred
Static braking torque Nm	fourteen	eighteen	thirty-eight	fifty
Braking time ≤ S	zero point one zero	zero point one zero	zero point one five	zero point one five
Excitation power ≤ w	twenty	twenty-five	thirty	thirty-five
Normal working air gap mm	0.20～0.25		0.25～0.30
Maximum wear air gap mm	zero point five zero
Rated working voltage V	3Φ-220/380
Connection method	△/Y
insulation class	F
Allow maximum speed r/min	three thousand and six hundred

Note: The rated working voltage and frequency can be designed according to user requirements, such as 50Hz 220V 400V 420V..., 60Hz 220V 380V 440V

Installation size:

Specification Code	Installation dimensions and tolerances						External Dimensions
	Z (number of teeth)	M (modulus)	α (pressure angle)	E	Φ	n-s×h	A	L
	Involute spline teeth			basic size	basic size	basic size
AZM71	twenty	zero point eight	30°	thirty-six point five	one hundred and twenty	3×M8×12	Φ137	ninety-seven
AZM80	twenty-four	zero point eight	30°	forty-one point five	one hundred and forty	3×M8×12	Φ154	one hundred
AZM90	thirty	zero point eight	30°	fifty-five	one hundred and fifty-eight	3×M8×12	Φ174	one hundred and ten
AZM100	thirty-eight	zero point eight	30°	fifty-five	one hundred and seventy-seven	3×M8×12	Φ194	one hundred and thirteen

Note: Unit (mm)

Structure, Installation and Debugging Diagram:


1. Rotor 2, brake mounting seat 3, O-ring seal 4, brake disc assembly 5, armature assembly 6, magnetic yoke assembly 7, brake cover 8, release screw 9, fixing screw 10, manual release seat 11, cover fixing screw 12, release wire ring 13, double headed fixing bolt 14, formulated spring 15, brake torque adjustment nut 16 (17), air gap adjustment nut δ, working air gap

Air gap debugging method:
Tools: stiff hand, feeler gauge.
Debugging method: Unscrew the (11) nut and screw, remove the protective cover (7), loosen the (16) and (17) 6 nuts, select the working air gap thickness plate according to the model of the plug gauge, insert it near the δ point of one of the fixed screws (13), screw in (17) to press the plug gauge, and then slightly withdraw it. The plug gauge can be removed, but it should not be too loose. Then it is necessary to tighten the tight nut (16) and use the same method to adjust the other 2 points that are 120 ° apart. Finally, check if the air gap is the same. If it is too tight or too loose, adjust it to achieve uniformity at three points. After long-term wear and tear of the friction plate, the δ value must be checked. When the "δ" value exceeds the maximum wear air gap value, the above method must be used for adjustment, otherwise it will affect the normal operation of the brake.

Notes:
1. The surface of the armature, rear end cover, and brake disc must be free of oil stains and kept dry and clean;
2. During installation and debugging, it is necessary to ensure that the air gap "δ" value is within the working air gap range;
3. The involute spline shaft is processed according to the 7th level standard, mainly based on the matching of brake disc teeth. When assembling the brake disc, apply an appropriate amount of butter to the spline teeth.