DY-LH Series Hydraulic Coupling Soft Starter

Intelligent Flexible Transmission Solution Based on the Novel “Structured Aerosol” Model

I. Product Overview

The DY-LH series hydraulic coupling soft starter is a next-generation intelligent flexible transmission product independently developed by Guangdong Zhongxing Hydraulic Transmission Co., Ltd. Installed between the engine (or electric motor) and the driven machine, it achieves flexible power transmission and intelligent switching by precisely controlling the filling ratio in the working chamber, enabling no-load motor starting, smooth load acceleration, and high efficiency under rated operating conditions that approaches that of rigid transmissions.

This product integrates Soft start, clutch, overload protection, and damping vibration reduction Integrated into a single unit, it is particularly well suited for heavy-industry applications involving frequent start–stop cycles, loaded starts, and severe shock and vibration, making it an ideal upgrade solution for traditional fluid couplings, clutches, and variable-frequency soft starters.

II. Core Technology: A New Structured Aerosol Model

Traditional hydrodynamic transmissions are based on the “pure fluid circulation” assumption, which regards slip as an unavoidable trade-off. In contrast, the DY-LH series has consistently demonstrated performance that surpasses conventional theory in extensive engineering applications: at a high fill ratio (>95%), efficiency reaches 97% to 98.5%, with slip remaining stable at 1.5% to 3%, while also exhibiting outstanding shock resistance and torsional vibration damping capabilities.

To this end, Guangdong Zhongxing has proposed and implemented “Structured Aerosol” Medium Model , the hydraulic transmission mechanism is uniformly explained as three states:

A unified explanation of the DY-LH performance based on this model:

High-efficiency transmission Under rated operating conditions, the working medium is in a “quasi-rigid colloidal” state, with shear-dominated power transmission and extremely low energy dissipation.

Intrinsic Damping : A micro-slip of 1.5% to 3% is essentially due to viscous dissipation, creating a “hydraulic spring” effect that instantly absorbs shocks and isolates torsional vibrations.

Seamless switching : By regulating the fill ratio, the medium state is continuously adjusted, enabling shock-free switching from zero-speed disengagement to rated locking.

III. Product Structure and Core Advantages

1. Structural Composition

Hydraulic clutch mechanism : High-strength rectangular welded housing with built-in pump impeller and turbine, offering excellent structural rigidity.

Fuel Supply and Heat Exchange System : Oil supply to the pump station, with optional air-cooled or water-cooled heat exchangers; oil temperature is controllable.

Intelligent Control System Supports local and remote control, precise adjustment of the filling rate, and multiple operating modes.

2. Core Advantages (Reimagined Based on the New Model)

IV. Main Technical Parameters (Selection Example)

Note: For additional specifications and non-standard customizations, please contact our technical department.

V. Typical Application Areas

Belt conveyor, pipe conveyor : Motor no-load start-up, extremely low-speed belt pre-tensioning, smooth acceleration, and automatic power balancing in multi-motor drives.

Crusher, ball mill Under impact loading, the medium instantaneously “softens” to absorb energy, then automatically reverts to “rigid” transmission, thereby preventing damage due to overload.

Diesel-powered equipment : Matches the diesel engine’s high-efficiency operating range, isolates torsional vibrations, and extends engine life.

Mud pump, Roots blower : Smooth start-up and shutdown with overload protection to reduce maintenance costs.

VI. Comparative Advantages Over Competing Solutions

VII. Intelligent Control System

The DY-LH electrical control system achieves programmable control of the medium’s physical state by precisely regulating the filling ratio:

Local/Remote Control : On-off time adjustment to achieve linear or stepwise control of the liquid fill ratio.

Intelligent Expansion : Integrated PLC automatically adjusts the filling ratio based on the load, ensuring continuous operation in the optimal medium state.

Condition Monitoring Optional temperature and pressure sensors for real-time monitoring, with fault warning and remote diagnostics capabilities.

Curing Sequence : Preset optimized curves for typical applications (e.g., 30-second soft start), eliminating the need for on-site commissioning.

VIII. Summary

The DY-LH series hydraulic coupling soft starter is not a mere incremental improvement over conventional hydraulic products; rather, it is based on “A New Propulsion Model for Structured Aerosols” mature industrial applications built upon it. It translates the theory of phase change in working fluids into tangible engineering value:

Extremely high transmission efficiency : 97%~98.5%

Intrinsic Flexible Damping : 1.5%~3% constant micro-slip

Smooth Startup and Switching : Truly zero impact

Long lifespan and high reliability : >10 years without major overhaul

We provide users not just with a device, but with a system based on advanced dielectric physics. Intelligent Flexible Transmission Solutions It is a cost-effective and highly reliable alternative to traditional clutches and variable-frequency soft starters.