TJ2 Series Electromagnetic Drum Brakes: Installation Methods & Matching Accessories

 

 

1. Installation Methods

TJ2 series electromagnetic drum brakes adopt vertical upward electromagnetic coil mounting as the standard layout, and customized horizontal installation is available for equipment with limited vertical space. The installation dimensions comply with national mechanical industry standards, which can realize direct replacement of old-generation electromagnetic drum brakes.

Standard Vertical Installation

Fasten the integral cast brake base firmly on a flat rigid support frame with high-strength bolts. Keep two brake shoes symmetrically distributed on both sides of the brake drum, and ensure the central axis of the brake frame is coaxial with the brake drum to avoid eccentric friction and local overheating.

Install the matched AC electromagnetic brake vertically on the top of the brake arm. Guarantee the armature pull rod moves vertically without deflection to provide stable suction force during power-on release.

The built-in linkage equal-gap balancing mechanism automatically maintains consistent clearance between friction linings and the drum on both sides, reducing frequent manual calibration and preventing unilateral shoe dragging.

Reserve adequate surrounding space for friction lining replacement, torque adjustment, coil maintenance and manual release operation.

Optional Horizontal Side Mounting

This layout fits trolley running mechanisms and narrow vertical installation positions. Flip the brake arm assembly and install the brake laterally around the brake drum, which requires custom transition brackets. After horizontal assembly, check the armature reset spring elasticity to prevent incomplete braking or delayed release.

Key Installation Requirements

All hinge pivot joints are equipped with maintenance-free self-lubricating bearings, no regular greasing needed after installation.

Completely remove oil stains, rust and dust on the brake drum surface before trial run; grease pollution will sharply reduce friction coefficient.

Adjust the pre-compression of the main braking spring via adjusting nuts to set the target braking torque.

Working principle: Fail-safe spring-applied design. Energize the electromagnet to generate magnetic suction and pull open the brake shoes for release; cut off power, the brake spring pushes the shoes to clamp the drum for automatic braking.

Keep the electromagnetic coil away from water splash, heavy dust and corrosive gas to extend service life.

2. Standard Matching Accessories

Core Functional Supporting Components

AC Electromagnetic Brake Coil AssemblySpecial matched electromagnet as the driving unit for TJ2 series, generating magnetic attraction to overcome spring braking force. Standard voltage options: AC220V / AC380V.

Manual Release LeverFor emergency brake opening during power failure or equipment overhaul, convenient for static maintenance inspection.

Limit Position SwitchesDetect fully-braked and fully-released brake states, transmit real-time feedback signals to the electrical control cabinet for safety interlock and operation monitoring.

Consumable Spare Parts

Snap-on Quick-Replace Friction LiningsEnvironment-friendly non-asbestos wear-resistant friction blocks with clamping structure; separate replacement without disassembling the whole brake frame. Semi-metallic linings are optional for heavy-load and high-frequency braking scenarios.

Complete Adjustment & Fastener KitContains torque adjusting nuts, clearance adjusting screws, lock bolts, hinge pins and reset springs for long-term parameter recalibration.

Electromagnetic Coil Spare PartsReplacement coils and insulating sleeves for aging or burnt electromagnet maintenance.

3. Optional Custom Accessories

Explosion-proof electromagnetic coils and Ex-certified limit switches for coal mines, chemical plants and other flammable explosive hazardous areas.

Custom transition brackets dedicated to horizontal side mounting layout.

Dust and splash-proof protective covers for outdoor, cement plant and mining high-dust working sites.

Anti-corrosion surface coating and stainless steel fasteners for coastal humid, salt fog and corrosive workshops.

Buffer shock-absorbing assemblies to reduce impact, vibration and running noise under frequent start-stop cycles.

 

 

 

 

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