Positioning and core advantages of 1. technology

Zhengzhou Rongjing Machinery Equipment Co., Ltd. deep-cultivated winch field, its electronically controlled winch to the whole scene adaptability as the core advantage, covering construction, mining, water conservancy engineering, ship terminals and other industries needs. The product adopts modular design, supports flexible configuration with pulling force range of 5-200 tons and speed of 0.5-30 m/min, realizes stepless speed regulation through external frequency conversion technology, the response time of braking system is less than or equal to 0.2 seconds, and the safety coefficient reaches 1.5 times of rated load, thus meeting stable operation under complex working conditions.

2. Technical Architecture Analysis

1. Power system: Three-phase asynchronous motor inverter combination is adopted, the power covers 7.5-110kW, the voltage is adapted to 380V/660V, the soft start function is supported, the starting current fluctuation is less than or equal to 1.2 times the rated value, and the impact of the power grid is reduced.
2. Powertrain system: Planetary gear reducer and open gear pair work together, the transmission efficiency is ≥ 92%, the gear modulus is 3-8mm, the material is 20CrMnTi carburizing and quenching, the hardness is HRC58-62, and the wear resistance is increased by 30%.
3. Control systemPLC integrated control unit supports remote IO module expansion, can access displacement sensor, torque sensor to achieve closed-loop control, protection grade IP55, adapt to -20 ℃ ~ 50 ℃ ambient temperature.

3. Typical Application Scenarios and Parameter Matching

1. Construction site scene: In the construction of the exterior wall of high-rise buildings, a 10-ton electronically controlled winch is selected, equipped with a double brake system (electromagnetic brake hydraulic brake), with a wire rope diameter of 16mm, a safety factor of 1.8 times, and an operating speed of 8 m/min to meet the vertical lifting requirements.
2. Mining operation scene: For underground roadway operation, the explosion-proof electric hoist is customized, the motor protection grade is IP65, the brake adopts disc spring structure, the braking torque stability is 3%, and it is suitable for the environment with humidity of 90% RH and dust concentration of 200 mg/m.
3. Water conservancy project scene: In the gate opening and closing system, a 50-ton electronically controlled winch is adopted, equipped with a double-drum structure, a wire rope length of 200m, and a synchronization accuracy of ± 5mm. It supports manual/automatic dual-mode switching to ensure reliability under long-term immersion conditions.

4. customized service and technical support

Zhengzhou Rongjing provides full-process customization services from program design to manufacturing. For example, a ship terminal project needs to install winch in a narrow space. The technical team shortened the length of the whole machine by 20% by optimizing the structure of the reducer, and adopted the layout of external inverter to solve the problem of installation space limitation. Customized products after 72 hours of continuous load testing, temperature rise ≤ 65 ℃, vibration value ≤ 4.5 mm/s, to meet the requirements of classification society certification.

5. Technical FAQ

Q1: What are the main differences between an electric winch and a mechanical winch?
A: The electronically controlled winch realizes precise speed control through the frequency converter and supports multi-stage speed operation, while the speed of the mechanical winch is fixed; the electronic control system can integrate torque limit, overspeed protection and other functions, and the safety is higher.
Q2: How do I choose the appropriate hoist specifications?
A: according to the load weight, lifting height, operating frequency comprehensive calculation. For example, to lift 10 tons of heavy objects, a height of 30 meters, and run 20 times a day, it is recommended to choose a model with a rated load of 15 tons and a speed of 10 m/min, and to configure a dual brake system.
Q3: How long is the delivery cycle of customized services?
A: Standard model delivery cycle 15-20 days, customized models need to be evaluated according to technical complexity, usually completed within 30-45 days, including program design, prototype testing, mass production of three stages.