German Ortlinghaus brake Ortlinghaus model Ortlinghaus price

Ortlinghaus brakes, also known as disc brakes, pneumatic brakes, air-operated disc brakes, and air-hydraulic pneumatic brakes, are a type of industrial transmission brake. They are actuators that use air pressure to stop or decelerate moving parts in machinery. The structure is simple, installation is convenient, and they are resistant to damage, compression, impact, and knocking. They have a long service life; generally, only the brake pads need to be replaced, which is easy and convenient. They utilize magnetic effects.

Ortlinghaus brake introduction

The electromagnet is a key component of electromagnetic brakes, significantly influencing their performance stability and reliability. When brakes are used continuously while a vehicle descends a long slope or during emergency braking at high speeds, the temperature of the brake working components rises sharply. When the temperature reaches a certain level, mechanical, physical, and chemical factors cause the friction coefficient of the brake friction pair to decrease, leading to a decline in braking efficiency. This phenomenon is known as thermal fade of braking efficiency. Resistance to thermal fade is one of the important indicators for evaluating brake performance. The following analysis uses the finite element method to analyze the temperature fields of the electromagnet and friction ring at various stages during downhill descent, and verifies the accuracy of the analysis model and method through experiments.

Ortlinghaus brake working principle

The friction ring rotates together with the brake drum. The electromagnet and the drive lever are connected by a retaining ring. At the start of braking, the controller sends a braking signal, energizing the electromagnet to generate electromagnetic attraction, which adsorbs onto the friction ring. Since the electromagnet is constrained by the drive lever, it slides relative to the friction ring. The friction force acting on the electromagnet drives the connected drive lever to rotate around its fulcrum. The driven end of the lever opens the two friction shoes of the brake and presses them against the brake drum, generating braking torque. To end braking, the electromagnet is de-energized, causing the attraction and friction forces to disappear. Under the tension of the return spring, the friction shoes move away from the brake drum, releasing the brake. Electromagnetic brakes are an ideal automation actuator in modern industry, primarily serving to transmit power and control motion in mechanical transmission systems. They offer advantages such as compact structure, simple operation, sensitive response, long life, reliable use, and ease of remote control. They are mainly matched with series motors and are widely used in machinery for metallurgy, construction, chemical industry, food processing, machine tools, stages, elevators, ships, packaging, and other applications, including fail-safe braking during power outages.

Ortlinghaus brake precautions for use

1) Use the electromagnetic brake in a condition completely free of moisture, oil, etc. If the friction surfaces are contaminated with moisture or oil, the friction torque will be significantly reduced, and braking sensitivity will deteriorate. To avoid these situations during use, please install a cover. 2) When used in dusty environments, please enclose the entire brake in a box. Electromagnetic brakes below 60KGM can use the vertical type, and even higher models can use it. 3) Please use the specified dimensions for the long shaft used to install the brake. Use one of the specified keys for the mounting shaft. 4) Considering factors such as thermal expansion, please keep the thrust on the mounting shaft below 0.2MM. 5) During installation, adjust the attraction gap on the machinery to within plus or minus 20% of the specified value. 6) Keep the bracket light; do not subject the brake bearings to excessive pressure. 7) For assembly screws, use spring washers, adhesives, or other methods to prevent loosening. 8) While maintaining the lead wires using the frame on the mechanical side, ensure secure connections using terminal blocks, etc.

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