YJGQ-60 Hydraulic Rail Clamp

 

 

Key Features & Characteristics

Fail-Safe "Normally Closed" Operation:

Spring-to-Clamp, Hydraulic-to-Release: The clamping action is powered by heavy-duty internal springs. To release the clamp and allow the machine to move, a hydraulic power unit is energized to push a piston, compressing the springs and opening the clamp jaws.

Automatic Safety: When the machine shuts down or experiences a power outage, the hydraulic pressure is released, and the springs instantly force the jaws to clamp tightly onto the rail, securing the machinery.

High-Performance Specifications (YJGQ-60):

Anti-skid Force: Delivers a robust holding force of 60 kN.

Hydraulic System: Powered by a compact hydraulic station, typically operating at a rated pressure of 10 to 14 MPa.

Rail Compatibility: Designed to fit a wide range of standard crane rails, including QU100, QU80, QU70, P50, and P43.

Intelligent Control & Safety Interlocks:

Walking Interlock: The system is electrically interlocked with the main machine's travel circuit. The main machine is strictly prohibited from moving unless the rail clamp is fully opened and a limit switch confirms the released state.

Adjustable Clamping Speed: The closing speed of the clamp jaws can be finely tuned via a throttle valve on the hydraulic manifold. This ensures the main machine comes to a complete stop before the jaws make contact with the rail, preventing severe impact damage to both the clamp and the track.

Automatic Pressure Maintenance: The system can be equipped with a pressure sensor and limit switch. If the clamp's opening slightly decreases over time due to minor hydraulic internal leaks, the system automatically triggers the pump motor to briefly re-pressurize, restoring the full open position.

Robust & Maintenance-Friendly Design:

Heavy-Duty Construction: Built with high-strength steel components and specialized clamp jaws to withstand harsh outdoor environments (rain, snow, dust, and salt spray).

Easy Maintenance: Features standard lubrication points (grease nipples) for moving parts. The hydraulic system requires regular checks of the oil level and periodic oil changes (typically once a year).

Wear Monitoring: The toothed surface of the clamp jaws should be inspected during major overhauls and replaced if the wear exceeds 10%.

Typical Applications

The YJGQ-60 is essential for securing medium-sized outdoor machinery in exposed environments:

Port & Logistics: Medium-sized container gantry cranes, rail-mounted gantry cranes, and bulk material handling equipment.

Power & Mining: Stackers and reclaimers used in coal yards, ore fields, and power plants.

Heavy Industry: Various bridge cranes and portal cranes operating on outdoor tracks in metallurgy and manufacturing facilities.

General Technical Specifications

表格

Parameter	Description
Type	Hydraulic Rail Clamp
Model Series	YJGQ-60 Series
Anti-skid Force	60 kN
Hydraulic Rated Pressure	10 - 14 MPa
Applicable Rails	QU100, QU80, QU70, P50, P43, etc.
Braking Principle	Spring-applied, Hydraulically released (Normally Closed)
Key Features	Fail-safe wind protection, walking interlock, adjustable clamping speed

Note: The YJGQ-60 is a vital safety component for outdoor rail-mounted equipment. During installation, precise alignment of the clamp center with the crane's wheel center is crucial. Furthermore, the walking interlock and the clamping time-delay must be rigorously tested to ensure the machine never attempts to drive while the clamps are engaged. Regular monthly inspections of the limit switches and hydraulic oil levels are highly recommended to guarantee fail-safe performance.

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