DJPZ Series Motor Disc Brakes DJPZ-02

 

The DJPZ-02 belongs to the DJPZ series of motor disc brakes. All brakes in this series feature a normally closed electromagnetic disc structure, offering safety, reliability, and sensitive braking performance. The working principle of the DJPZ-02 aligns with the general design of the series, and its application scenarios focus on the industrial fields compatible with the series. Details are as follows:

Working Principle

The core of this brake is a normally closed design based on "spring-applied braking and electric release," supplemented by a manual release function. Its working process consists of two core states: brake release and braking execution, with details as follows:

Brake Release

When the motor matched with the brake is powered on and operates, the internal electromagnet of the brake is synchronously connected to the corresponding DC power supply (common working voltages for the electromagnetic coils of this series are DC99V and DC170V). After energization, the electromagnet generates electromagnetic attraction, which pulls the armature and compresses the internal spring, causing the brake disc to disengage from the armature end cover. At this point, the brake disc is free from frictional resistance and can rotate freely with the motor shaft, allowing the motor to output power normally and drive the load equipment to operate.

Braking Execution

When the motor is powered off, the equipment stops, or a circuit fault occurs, the electromagnet loses electromagnetic attraction instantly. The previously compressed spring quickly returns to its original state, pushing the armature to clamp the brake disc tightly. The brake disc closely adheres to the rotating parts of the motor, generating friction torque. Under the action of this torque, the motor shaft decelerates rapidly and eventually stops rotating, thereby achieving equipment braking and preventing potential safety hazards caused by the equipment's continuous operation due to inertia.

Emergency Assistance

Brakes in this series are equipped with a manual release function. In case of sudden power outage requiring manual equipment debugging or maintenance, workers can manually release the brake, enhancing the flexibility and safety of equipment maintenance.

Application Scenarios

The parameters such as braking torque of the DJPZ-02 are suitable for small and medium-power motors (the braking torque of this series ranges from 2 to 2000 Nm, compatible with motors of frame sizes 63–315). It is mostly installed at the tail of the motor or the high-speed shaft of the reducer, with application scenarios focusing on braking and positioning needs in multiple industrial fields, including:

Hoisting and Mining Machinery

It can be adapted to equipment such as hoists in mines, underground transportation equipment, and overhead cranes in factories. Such equipment has high requirements for parking stability and positioning accuracy. The DJPZ-02 can achieve rapid braking, preventing heavy objects from sliding or equipment from shifting, and ensuring operational safety.

General Industrial Machinery

Widely used in machine tools, packaging and printing machinery, and textile machinery. For example, during machine tool processing, it can assist the spindle in stopping quickly to achieve precise workpiece positioning; in printing and textile equipment, it can control the start-stop rhythm of fabric and printing substrate transmission, avoiding problems such as material tearing and stacking.

Special Transmission Equipment

Can be used in the transmission systems of elevators and escalators to provide power-off protection, preventing elevator or escalator sliding accidents due to sudden power outages. It can also be adapted to the auxiliary transmission mechanisms of small wind turbines and the traveling mechanisms of metal calendering equipment, realizing deceleration and parking braking and ensuring the stable operation of such equipment.

Metallurgical and Chemical Machinery

In small metal calendering devices in the metallurgical industry, it can cooperate with the equipment to achieve rapid shutdown of rolls, ensuring processing accuracy. On equipment such as material transfer pumps and mixing equipment in the chemical industry, it can achieve safe braking during emergency equipment shutdown, avoiding risks such as chemical raw material leakage.

 

 

 

 

 

Hot Tags: djpz series motor disc brakes djpz-02, China, manufacturers, supplier, factory, customized