💡 Key Features & Characteristics
Foot-Operated & Normally-Open:
Operation: This is a normally-open brake, meaning it does not apply any braking force when at rest. Braking is initiated by the operator pressing a foot pedal.
Actuation: The force from the pedal is transmitted via a steel wire rope to the brake's lever system, which then forces the brake shoes against the drum.
Release: When the foot pedal is released, springs retract the brake shoes, disengaging the brake.
Self-Equalizing Mechanism:
The "B" variant features an interlocking equalizing device. This mechanism automatically ensures that both brake shoes retract and apply with equal force, preventing uneven wear and one-sided dragging on the brake wheel.
Maintenance-Free Pivots:
The main pivot points of the linkage are equipped with self-lubricating bearings. This design eliminates the need for regular greasing, reducing maintenance requirements and ensuring smooth operation.
Easy Pad Replacement:
The brake linings (shoes) are designed with a card-mounted (snap-in) structure. This allows for quick and easy replacement of worn pads without the need to disassemble the brake arms.
Application-Specific Design:
This brake is specifically intended for the deceleration and braking of medium and small-sized crane travel mechanisms (e.g., the bridge or trolley of an overhead crane).
🏭 Typical Applications
The TWZB-200 is used in applications requiring simple, manual braking control:
Cranes & Hoists: Primarily for the travel (motion) mechanisms of small to medium-sized cranes.
Conveyors: Manual stopping of smaller conveyor systems.
General Machinery: Any equipment where a simple, human-powered brake is adequate for stopping or holding a load.
📋 General Technical Specifications
表格
| Parameter | Description |
|---|---|
| Type | Foot-Operated Drum Brake |
| Model Series | TWZ(B) Series |
| Model Variant | TWZB-200 |
| Brake Wheel Diameter | 200 mm |
| Braking Torque | Part of the 200-500 N·m range for the series |
| Actuation Method | Manual (Foot Pedal via Steel Wire Rope) |
| Release Method | Spring Return |
| Key Feature | Self-equalizing, maintenance-free pivots, snap-in pads |
Note: The TWZB-200 is a purely mechanical device and does not require any electrical or hydraulic power source. The braking force is directly proportional to the force applied to the foot pedal (specified as 320-370 N for the series). Ensure the mounting base is strong enough to handle the reaction forces during braking.
