Anti-collision crane assembly

Anti-collision crane assembly

2 week ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

1. Product Overview

The anti-collision crane assembly is a safety protection integrated unit specially designed for gantry cranes, overhead traveling cranes, tower cranes and port container cranes. It is assembled into the crane’s whole control circuit and matched with the main hydraulic system and driving hydraulic motor to prevent collision between adjacent cranes, or collision between cranes and building barriers, stockpiles, piers and other obstacles during traveling, slewing or luffing actions. It integrates sensing modules, control processing units, hydraulic/electric executive parts and limit protection valves, realizing automatic deceleration, forced stop and alarm interlock.

2. Main Composition

1. Detection sensing part: infrared distance sensors, laser rangefinders, ultrasonic probes, limit switches, used to real-time collect spacing data between cranes or obstacles;

2. PLC/controller unit: analyzes distance signals, judges danger level and outputs control instructions;

3. Executive matching parts (link with hydraulic system): proportional throttle valves, electromagnetic cut-off valves and buffer hydraulic cylinders. It can cut off oil supply to the walking/slewing hydraulic motor or throttle hydraulic flow to slow down movement;

4. Auxiliary parts: warning horn, flashing warning light, emergency reset button, buffer rubber blocks/hydraulic buffers.

3. Working Principle

During crane operation, the sensor continuously detects the clearance between the crane and hazards.

- Safe distance: The assembly keeps standby status, the hydraulic system operates normally, and the hydraulic motor runs at set speed;

- Early warning distance: Trigger sound & light alarm, meanwhile the assembly sends signals to restrict the flow of the main hydraulic circuit, reduce rotating speed of the driving hydraulic motor to realize forced deceleration;

- Dangerous critical distance: Automatically cut off the main oil circuit of the hydraulic system, lock the walking or slewing mechanism, completely stop the crane movement to avoid hard collision;

After danger is eliminated, manual reset can resume normal hydraulic drive operation.

4. Core Features

1. Two-stage protection (warning + emergency stop), linkage with the crane’s original hydraulic system without large-scale structural modification;

2. High adaptability, compatible with hydraulic drive systems equipped with various specifications of hydraulic motor;

3. Anti-interference design, suitable for dust, vibration and high-humidity outdoor yard, port and steel plant working conditions;

4. Adjustable protection distance parameters, supporting customized threshold setting for different crane tonnages;

5. Equipped with mechanical buffer structure as secondary protection even if hydraulic control fails.

5. Application Scenarios

Overhead cranes in steel workshops, gantry cranes in freight yards, port container cranes, tower cranes on construction sites, multi-crane overlapping operation areas in mines. It is essential safety accessory to protect crane body, hydraulic system components and on-site personnel.

6. Failure Replacement Prompt

If the assembly fails to trigger deceleration/stop action, sensors lose signal, or hydraulic control valve inside fails to cut off oil for the hydraulic motor, the whole anti-collision crane assembly needs inspection or replacement to eliminate collision risks.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

4 year

Address: Ningbo, China

Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch , hydraulic system

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