Full Category Technical Architecture and R & D Strength of 1. hoist

Zhengzhou Rongjing Machinery Equipment Co., Ltd. has been deeply engaged in the field of hoisting machines for many years and has built a technical framework covering all categories of electronic control hoisting machines, planetary handbrake hoisting machines, vertical circulating hoisting machines, external variable frequency hoisting machines, etc. Its research and development system takes modular design as the core, and realizes rapid iteration and performance optimization of models through the combination of standardized components and customized functional modules. For example, the electric control hoisting machine adopts PLC control system, which supports the adjustment of the pulling force range of 0.5-50 tons with a speed accuracy of ± 0.1 m/min. The planetary handbrake hoisting machine is linked with hydraulic brake through multi-stage gear transmission, and the braking distance is shortened to within 0.3 meters, thus meeting the needs of high-risk scenarios such as mining.

2. full-category model parameter analysis and scene adaptation

1. Electrically controlled winch: Rated pulling force 5-50 tons, speed range 0.5-15 m/min, suitable for vertical hoisting of materials in construction. Its variable frequency drive technology can reduce energy consumption by 20%, and supports remote monitoring functions, and transmits operating data to the cloud platform in real time through the Internet of Things module.

2. Planetary handbrake winch: The three-stage planetary gear reduction mechanism is adopted, the transmission efficiency reaches 92%, and the braking torque is increased by 35%. In mine roadway operation, its compact structure (length × width × height = 1200 × 800 × 600mm) can be adapted to narrow space, and IP55 protection grade can resist dust and humid environment.

3. vertical circulating winchContinuous operation is realized through double reel design, the single cycle time is shortened to 8 seconds, and the efficiency is 40% higher than that of traditional models. In water conservancy projects, its 304 stainless steel and anti-corrosion coating can withstand salt spray environment, and its service life is extended to more than 10 years.

3. Customized Technical Solutions and Typical Cases

A ship terminal project needs to install a hoist in a limited space, and needs to meet the dual requirements of 50 tons of pulling force and 5 m/min speed. Zhengzhou Rongjing technical team through the following steps to achieve customized delivery:

STEP1: Working condition analysis: Site survey found that the installation height is only 2.5 meters, the traditional horizontal model cannot be adapted, and vertical structure is required.

STEP2: Parameter optimization: Adjust the gear modulus of the reducer from 3mm to 2.5mm, reduce the diameter of the drum to 800mm, and ensure the bearing capacity by strengthening the shaft material (40Cr tempering treatment).

STEP3: Verification Test: Simulate salt spray environment (concentration 5%, temperature 35 ℃) in the laboratory for 720 hours of continuous operation test. The brake has no sticking phenomenon and the motor temperature rise is controlled within 40 ℃.

The plan finally realized that the volume of the equipment was reduced by 30%, the tension error was less than or equal to 2%, and the maintenance period was extended to 6 months, with 12 additional orders from customers.

4. Technology Advantage and Industry Application Value

The technical advantages of Zhengzhou Rongjing winch are reflected in three aspects: firstFull category coverage capabilityMore than 200 specifications and models have been derived from the standardized platform, with a pulling force range of 0.5-200 tons and a speed of 0.1-20 m/min. The second isReliability Design, Key components such as bearings and brakes adopt SKF, EATON and other international brands, and the MTBF (mean time to failure) of the whole machine reaches 8000 hours; ThirdService response speedRelying on 12 service centers across the country, it can arrive at the scene to solve the fault within 48 hours, and the spare parts inventory meets 95% of the common model requirements.

In the field of construction, its electronically controlled winch has been applied to super high-rise projects (such as supporting tower cranes over 300 meters) to achieve a positioning accuracy of ± 5mm in material hoisting. In mining, the planetary handbrake winch has passed explosion-proof certification and can operate safely in an environment with gas concentration ≤ 0.5%. These technical layouts enable its products to be exported to more than 30 countries, with a total of more than 5000 service items.