DZK series electromagnetic brake

Note: Specifications DZK04～DZK75, S holes (solid line) 3 × 120°, and DZK04 three holes are in an equilateral triangle distribution, DZK7.5～DZK75 are in an inverted triangle distribution. Specification DZK150, S holes (dashed line) 4 × 90°.

1. Schematic diagram of the structure is as follows:

2. Brake air gap value requirements

3. Air gap inspection

As shown in the structural diagram, the distance between the armature plate 10 and the electromagnet 16 is called the air gap (δ). The normal working air gap (δ) does not exceed the specified working air gap value. When the motor leaves the factory, it is adjusted to the initial working air gap range. After running for a period of time, due to the wear of the friction pads, the air gap (δ) becomes larger, which will affect the normal attraction and braking effect of the brake. Therefore, after the motor has been used for a period of time, according to the large air gap value, select the feeler gauge size to check the size of the air gap (δ). During the inspection, the feeler gauge can be directly inserted into the air gap (δ). If it can be inserted, it indicates that the air gap (δ) is too large and needs to be adjusted.

4. Air gap adjustment

Select the feeler gauge thickness according to the specified initial working air gap value, loosen the hexagon socket screw 16, and rotate the support adjusting sleeve 1 toward the electromagnet by 1-2mm to facilitate air gap adjustment. Place the feeler gauge of the selected size into the air gap (δ) next to the support adjusting bolt, slowly rotate in the hexagon socket screw 16, press the feeler gauge, and then press the support adjusting sleeve 1 against the end cover 8 plane, and pull out the feeler gauge. The hexagon socket screw 16 used for fixing DZK04-75 has three sets. Using the above method, adjust the air gap values on the three sets of screws to the initial working air gap value. The three air gap values should be uniform, and then tighten the hexagon socket screw 16. The hexagon socket screw 16 used for fixing DZK150 has four sets. The debugging method is the same as above.

After the air gap is adjusted, it should be checked again with a feeler gauge to prevent uneven air gap. If there is no standard feeler gauge for air gap adjustment, similar thickness iron sheet can be used instead.