1. Technical Background and Industry Positioning

As the core component of lifting equipment, the performance of electronically controlled winch directly affects the efficiency and safety of construction, mining, water conservancy and other fields. Zhengzhou Rongjing Mechanical Equipment Co., Ltd., with more than 10 years of technology accumulation, focuses on the research and development and production of all kinds of electric control winches. Its products cover the pulling force range of 500kg-100t, support speed adjustment of 0.5-30 m/min, and are suitable for various installation forms such as vertical, horizontal and external, which can meet the customization requirements under different working conditions.

2. Technical Architecture and Core Advantages

1. power system designDual motor redundant configuration is adopted, the power range of the main motor is 7.5 kW-110kW, and the auxiliary motor supports hot standby switching to ensure continuous operation without interruption. The 0.1Hz precision control is realized by frequency conversion speed regulation technology, and the speed fluctuation rate is less than or equal to 0.5, which meets the demand of precision hoisting.

2. brake safety system: Integrated electromagnetic braking and hydraulic buffer dual mechanism, braking distance ≤ 0.3m (full load condition), braking time ≤ 0.2s, in line with GB/T 3811-2008 crane design specifications. Optional explosion-proof brake, suitable for mining and other high-risk environment.

3. structure optimization technology: The reel adopts Q345B high-strength steel plate welding process, the wall thickness is adjustable from 20 to 50mm, and the fatigue life is more than 2 million times. Gear box adopts hard tooth surface grinding processing, transmission efficiency ≥ 95%, noise ≤ 75dB(A).

3. typical application scenarios and parameter matching

1. Building construction field: In the installation of curtain wall of high-rise buildings, JMM5 electric control hoist (pulling force 5t, speed 8 m/min) is selected. Through the synchronous control technology of double lifting points, the positioning accuracy of 5mm is realized, and the daily operation volume is increased by 40%.

2. Mining Scenarios: Aiming at the narrow space of underground roadway, the JMM20-EX explosion-proof model (pulling force 20t, protection grade IP65) is customized, intrinsically safe circuit design is adopted, and it has passed MT/T 661-2011 standard certification of electrical equipment for underground coal mine.

3. hydraulic engineering application: In the large gate hoisting and closing system, JMM100 double drum model (pulling force 100t, speed 0.5 m/min) is deployed, with integrated load display and overload protection functions, and the cumulative trouble-free operation time exceeds 15000 hours.

4. technical parameters and adaptation conditions

5. Technology FAQ

Q1: How does the electronically controlled winch achieve precise speed control?
A: Through the PLC inverter closed-loop control system, real-time acquisition of encoder feedback signal, dynamic adjustment of motor output frequency, speed control accuracy of ± 0.1 m/min.

Q2: How to avoid interference when multiple devices are synchronized?
A: CAN bus communication protocol is adopted to support networking control of up to 16 devices, and action synchronization is realized through master-slave mode, with time deviation ≤ 0.1s.

Q3: How to determine the equipment maintenance cycle?
A: It is recommended to carry out routine inspection every 500 working hours, replace lubricating oil every 2000 hours, and disassemble gearbox every 5000 hours. The specific cycle can be adjusted according to actual working conditions.

6. Technical Summary and Industry Value

Zhengzhou Rongjing electronically controlled winch has built a technical system covering the needs of the whole industry through modular design, intelligent control and customized services. Its products have served 3000 projects around the world and have verified technical reliability in major projects such as port construction in Southeast Asia and mining in the Middle East. In the future, we will continue to deepen technological innovations such as frequency conversion and energy saving, remote operation and maintenance, and promote the evolution of lifting equipment to high efficiency and intelligence.