23-4 Guide Pulley
Direction-change pulley guiding compensation rope along tunnel anchorage paths.
Specifications
| Model | 23-4 |
|---|---|
| Standard | TB/T 2075.23-2024, Fittings for overhead contact system of electrification railway — Part 23: Tunnel anchoring compensation devices |
The 23-4 guide pulley changes the running direction of the compensation rope in tunnel anchoring compensation systems, leading the rope along the designed path around the anchorage while keeping deflection angles small and the transmission smooth.
Manufactured to TB/T 2075.23-2024, Fittings for overhead contact system of electrification railway — Part 23: Tunnel anchoring compensation devices, the pulley consists of the wheel body, support bracket and axle pin. The rope groove matches the compensation rope diameter to prevent derailment and uneven wear, and the rotating parts use a maintenance-free structure.
The bracket's mounting holes line up with standard tunnel embedments and the 23-series anchoring components — heavy-duty anchor arms, rod anchor bases and limit frames — so the complete tunnel tensioning set installs as one system.
Henan Chuangwit Railway Equipment Co., Ltd. supplies the 23-4 under CRCC certification, together with the full TB/T 2075.23 tunnel anchoring range and site installation guidance.
Frequently Asked Questions
What does the guide pulley do in a tunnel anchoring system?
It changes the direction of the compensation rope, guiding it along the designed path around the tunnel anchorage while keeping the deflection angle small.
How is rope wear prevented?
The groove is sized to the compensation rope diameter and the wheel turns freely, so the rope rolls rather than slides and cannot jump out of the groove.
What mounting is provided?
A bracket with mounting holes matching standard tunnel embedments and the 23-series anchoring components.
