ZLYJ Series China Professional Worm Gear Reducer Hard Tooth Surface High-precision Gearbox for Plastic Screw Extruder

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Product Description

ZLYJ series

The ZLYJ series speed reducer is a high-accuracy, hard-toothed surface transmission component designed for plastic screw extruders. The product design complies with all technical regulations stipulated in JB/T9095.1-1999. It features gears and component parts made from high-strength alloy steel. The gears are manufactured using various processing technologies, such as carburizing, quenching, and teeth grinding. The accuracy of the gears is classified under grade GB10095-88, 6. The hardness of the tooth surface reaches HRC54-62. The front end of the hollow output shaft is equipped with a super thrust bearing to withstand the working recoil. The main standard components, such as bearings and oil seals, utilize domestically qualified products. Upon request, imported products can also be used. It boasts compact design, high bearing capacity, stable transmission, low noise, and high efficiency. The product's properties have reached an internationally advanced level and can replace similar imported products. The specifications and transmission ratios in the series products are standard data for customers. If it needs to be equipped with a rubber extruder, the rubber extruder has a stronger impact force than a plastic extruder. Please provide detailed technical parameters and consult the development department of our company before deciding on the model to be chosen.

Applicable conditions

This series of products can be used for deceleration transmission of single screw extruders with screw diameters of 30-250mm. The input speed of the gearbox is generally not greater than 1500r/min.
The transmission ratio is between 6.3-20, and the transmission ratio listed in the table is preferred. The transmission ratio can also be adjusted according to user needs. The working environment temperature is -10~45 ℃. When the temperature range exceeds this regulation, additional lubrication heating or cooling devices can be configured according to user requirements.

Installation, application and maintenance 1. The reducer should be protected from moisture during transportation and storage. If the exposed processing surface is not installed within half a year, it should be re-applied with anti-rust oil.

2. The reducer should be installed on a flat foundation. When the anchor screws are uniform and strong, the screw inserted into the output shaft can rotate evenly without jamming, so as not to add additional force to the output shaft and bearings and affect the bearing life. Strong assembly and disassembly of screws shall not be used.

3. After the reducer is installed, add lubricating oil to the center line of the oil mark. The oil level should be determined after the lubricating oil is evenly distributed in the box, and the oil level should be checked frequently. Under any circumstances, the oil level should not be lower than the oil standard position. Please use medium-load industrial gear oil L-CKCC220 or L-CKC320. After the first use of 300 to 600 hours, the oil should be changed once. Change oil every 3000 hours. Replacement should be discharged when the reducer is stopped and the lubricant has not yet cooled. Rinse the box with oil of the same quality. If the viscosity is high, it is not suitable to rinse it. Heat it first or use a low viscosity oil.

4. A reducer equipped with forced lubrication of the oil pump may cause insufficient oil intake and excessive noise during the initial stage of driving due to excessive oil viscosity and large oil suction resistance of the oil pump. This phenomenon generally disappears after the lubricant oil temperature rises. The reducer with the motor oil pump should first turn on the motor oil pump before loading, and the empty car will run for a period of time to facilitate the sufficient lubrication of each lubrication point.

5. During normal operation, if the oil pump noise increases, the oil circuit may be too large. Please clean the filter and other related components in this situation. No matter which type of reducer is started when not used for a long time or when the temperature is too low, it should be run empty for a period of time and can only be loaded and operated after each bearing is fully lubricated.

6. When the oil temperature is found to rise significantly during work, when the temperature rises exceeds 70℃ or the oil temperature exceeds 100℃, the quality of the oil will drop, and abnormal noise will be generated. You should stop using it and check the reasons. If it is caused by tooth surface glueing, the fault must be repaired and eliminated, and the lubricant will be replaced before use.

The bearing capacity of speed reducer

Faults, causes and troubleshooting

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Hangzhou EVER POWER Company is a comprehensive enterprise dedicated to technology, design and development, production, and electromechanical operation. It mainly produces ZLYJ, plastic rubber special reducers, ZDY series reducers for rubber and rubber machinery, as well as mechanical special reducers for mixing, refining, rolling, and other processes.The company adheres to the business philosophy of "integrity management, quality first, reputation first, and enthusiastic service", strives to become stronger, constantly strives for progress, and is willing to cooperate sincerely with customers for common development and progress hand in hand. Technology determines the future, and quality comes from technology. Advanced production equipment is the pulse of life, and technological progress is the reliable guarantee of product quality. We adhere to technology as the guide, pursue high quality as the soul of development, keep up with the latest international manufacturing technology trends, introduce the world's most advanced manufacturing equipment, and strictly control quality, forming a one-stop production system from casting, processing, assembly to commissioning and inspection.