1. Technical Background and Core Architecture

As the core product in the field of lifting equipment, the technical architecture of the electronically controlled winch integrates three modules: electric drive, mechanical transmission and intelligent control. Zhengzhou Rongjing Machinery Equipment Co., Ltd. integrates the motor, reducer, brake, reel and electronic control system into the compact body through modular design, and supports various installation forms such as vertical, horizontal, and external. Take the company's main JM type electric control hoist as an example, its motor power covers 5.5kW to 132kW, rated pull range of 5kN to 300kN, to adapt to different operating conditions. In terms of technical parameters, the rope capacity of the drum can reach 800m, and the diameter of the wire rope ranges from 6mm to 36mm. It supports single rope or double rope winding mode to ensure stable operation in construction, mining and other scenarios.

Technical Implementation of 2. Full Scene Adaptation

In view of the needs of multi-industry operation, Zhengzhou Rongjing realizes the dynamic adjustment of speed and tension by optimizing the transmission ratio and electric control logic. For example, in water conservancy projects, its electronically controlled winch supports stepless speed regulation from 0.5 m/min to 15 m/min, and cooperates with a dual brake system (mechanical brake electromagnetic brake) to ensure accurate positioning in humid environments. In the ship terminal scene, the company adopts IP55 protection level design, motor and electric control box independent sealing, can resist salt spray corrosion, extend the life of the equipment to more than 8 years. The measured data show that the product in continuous operation mode, the time between failures (MTBF) more than 5000 hours, braking response time ≤ 0.2 seconds, meet the requirements of GB/T 10055-2019 "lifting machinery safety regulations.

3. customized technical layout and case review

Zhengzhou Rongjing's technical advantages are reflected in the ability to respond quickly to special conditions. Taking a customized project of a mining enterprise as an example, the customer needs to hoist 50 tons of ore in a low temperature environment of -20 ℃, and the traditional winch is difficult to start due to the solidification of lubricating oil. The company's technical team solved the problem through three improvements: 1) selection of low-temperature hydraulic oil (-40 degrees C liquidity guarantee);2) optimize the motor insulation grade to H level (180 degrees C temperature resistance);3) increase the electric heating device to achieve -20 degrees C to 50 degrees C wide temperature range operation. After the project landed, the average daily operation of the equipment was 12 hours, the energy consumption was reduced by 15% compared with similar products, and the customer subsequently purchased 20 additional units.

4. Technical Parameters and Selection Guide

Enterprises to provide a full range of electronically controlled winch parameters control table, the core indicators include:
1. Rated tension: 5kN-300kN (10 gear optional)
2. Wire rope speed: 0.5-15 m/min (frequency conversion speed regulation)
3. Motor power: 5.5 kW-132kW (three-phase asynchronous motor)
4. Protection grade: IP44 (standard type)/IP55 (dustproof and waterproof type)
5. Installation method: fixed/mobile/external
When selecting the type, it is necessary to combine the working condition load, operation frequency and space limitation. For example, JM10 type (rated pulling force 100kN, speed 5 m/min) is recommended for the construction scene, while JM30 type (rated pulling force 300kN, speed 3 m/min) is recommended for the mine scene.

5. FAQ Technical Questions and Answers

Q1: What is the core difference between electronically controlled winch and hydraulic winch?
A: The electronically controlled winch is driven by a motor and has the characteristics of wide speed range, fast response speed, and low maintenance cost; the hydraulic winch relies on the hydraulic pump station, which is suitable for heavy-duty low-speed scenarios, but the energy consumption is high and requires regular replacement Hydraulic oil. Zhengzhou Rongjing products through frequency conversion technology to narrow the gap between the two in the speed performance, while maintaining the energy-saving advantages of the electronic control system.

Q2: How to solve the problem of overheating of the electronically controlled winch in a high temperature environment?
A: The company adopts dual heat dissipation design: 1) the motor shell increases heat dissipation ribs to improve natural convection efficiency; 2) The electric control box has a built-in forced air cooling system to ensure that the temperature in the box does not exceed 65 ℃ at an ambient temperature of 40 ℃. The measured data show that the scheme can make the equipment run continuously for 4 hours in 50 ℃ environment without load reduction.

Q3: Does customized service support non-standard reel design? A: Support. Zhengzhou Rongjing can customize the reel size according to the wire rope parameters (diameter, length, winding layers) provided by the customer, with a minimum inner diameter of 200mm and a maximum outer diameter of 1500mm. The customization cycle is usually 15-20 working days, and the working condition description and drawing requirements shall be provided in advance.