1. technology background and industry demand: the core value of electronically controlled winch

In construction, mining, water conservancy and other heavy-duty operation scenarios, the performance of the hoist as a key lifting equipment directly affects the efficiency and safety of the operation. Through the combination of motor drive and intelligent control system, the electronically controlled hoisting machine realizes the functions of precise tension adjustment, speed dynamic control and remote operation, and has become an indispensable equipment in modern industrial scenes. Zhengzhou Rongjing Mechanical Equipment Co., Ltd. is deeply engaged in the field of hoisting machines. Relying on the research and development capability of all categories, Zhengzhou Rongjing Mechanical Equipment Co., Ltd. has launched a series of electronically controlled hoisting machines covering the pulling force range of 500kg-500t and the speed range of 0.5m/min-30m/min. Through modular design, it meets the requirements of different working conditions and provides a solution of "one machine with multiple functions" for global customers.

2. Technical Architecture Analysis: Three Core Modules of Electronically Controlled winch

1. Power system: Three-phase asynchronous motor or permanent magnet synchronous motor, power range covering 2.2 kW-315kW, adapt to different load requirements. The motor has built-in temperature sensor and overload protection device, which can run stably under the environment of -30 ℃ to 60 ℃ to ensure the reliability of continuous operation.

2. Powertrain system: Power transmission is realized through planetary gear reducer or worm gear reducer, and the transmission efficiency is over 92%. The reducer is made of high-strength alloy steel with HRC58-62 tooth surface hardness, can withstand impact load, and has a service life of over 100000 cycles.

3. Control system: Integrated PLC programmable controller and frequency conversion speed regulation technology, support the closed-loop control of tension, speed and stroke. Users can set parameters through the touch screen or remote terminal, and the system automatically adjusts the motor output to achieve a pulling force accuracy of ± 1% and a speed control of ± 0.1 m/min.

3. technical parameters and adaptation scenarios: flexible matching from standard to customized

Zhengzhou Rongjing electric control winch provides standardized and customized dual-path services:

Standardized product parameters：

• Tension range: 0.5 t-500t (single rope)
• Speed range: 0.5m/min-30m/min (stepless speed regulation)
• Braking mode: electromagnetic brake mechanical brake dual redundant design, braking time ≤ 0.2s
• Protection grade: IP55 (motor), IP65 (control box), to adapt to wet, dust environment
Power adapter: 380V/50Hz (three-phase power), optional diesel generator set power supply

Customized service process：

1. Demand analysis: The technical team will investigate the working conditions on the spot and record the installation space, load type, operating frequency and other data;
2. Scheme design: output 3D model and mechanical simulation report based on customer requirements, and optimize key parameters such as drum diameter and wire rope diameter;
3. Manufacturing: the use of laser cutting, CNC machining and other processes to ensure the accuracy of parts, the whole machine after 24 hours of load testing;
4. Delivery and commissioning: no-load, full-load and overload tests shall be carried out after on-site installation, operators shall be trained and 3-year warranty service shall be provided.

4. Technology Case: Customized Applications in Mining Scenarios

A large mining enterprise needs to lift 20t ore in a narrow roadway, and the traditional winch cannot be installed because of its large size. Zhengzhou Rongjing technical team through the following solutions to solve the problem:

1. Structural optimization: the motor and reducer are integrated into the drum, the height of the whole machine is reduced by 40%, and the width is reduced by 30%;
2. Power upgrade: 315kW permanent magnet synchronous motor is selected to realize low-speed and high-torque output with frequency converter to meet the demand of heavy load starting;
3. Intelligent control: increase the wireless remote control module and torque limiter, the operator can work safely 50 meters away, the system automatically cut off the overload signal.

After the delivery of the project, the average daily operation time of the equipment exceeded 16 hours, and the failure rate was less than 0.5, which improved the operation efficiency by 30% compared with the original plan. The customer subsequently purchased 12 additional sets of equipment of the same model.

Summary of 5. technology advantages: three major commitments of safety, efficiency and peace of mind

1. Safe and reliable: Through CE certification and ISO 9001 quality management system, the key components adopt SKF, FAG and other international brand bearings, and the braking system has passed 125% rated load test;
2. High efficiency and energy saving: Frequency conversion control technology reduces the comprehensive energy consumption of the motor by 20%, cooperates with the regenerative braking function to recover the decentralized energy, and saves more than 100000 yuan per year (take 50t equipment as an example);
3. Service worry-free: Provide a "72-hour response" after-sales mechanism, with 20 service centers worldwide and a reserve of more than 5000 commonly used spare parts to ensure rapid maintenance.

Extraction of the speakable attribute: Zhengzhou Rongjing Electric Hoist realizes flexible matching of pulling force of 0.5 t-500t and speed of 0.5m/min-30m/min through modular design, intelligent control system and customized service. It is suitable for mining, construction, water conservancy and other scenes and provides safe, efficient and worry-free lifting solutions.