NMRV worm reduction gearbox has high quality aluminum alloy die cast housing with plastic spray appearance.The internal worm wheel and worm shaft are with durable material machined by advanced CNC equipment.Each worm reduction gearbox are assembled with famous brand parts,like NAK oil seal,C&U bearing,Boda synthetic oil and so on. The strict inspection standard is performed from material to finished worm gear motor,every one worm gearbox are requested to have 2 hours running test before delivery to clients.
Worm gearbox can be equipped with various input and output type, and conveniently combined with other transmission machinery，so it has been used widely, such as chemical, plating, ceramic, leather, pharmaceutical, foods industry, etc.
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2017年11月29日星期三
2017年11月22日星期三
installation
Worm gear reducer installed in principle is based on the worm gear reducer output to determine the size of the diameter of axle reducer stent models, as long as the interface forms and sizes, reducer output shaft size within a certain range can make more hits on reducer stent models. If the mounting dimension of the reducer is not in conformity with the speed reducer bracket, we can connect the speed adjusting plate and the reducer in a certain range to meet the user's requirements.
2017年11月16日星期四
Structure
The basic structure of the RV series aluminum worm gear reducer is mainly composed of worm gear, shaft, bearing, box and accessories of transmission parts. Can be divided into three basic structure parts: box, worm gear, bearing and shaft combination. The box is the base of all accessories in worm gear reducer, it is the important accessory that supports fixed shaft parts, guarantees the correct relative position of transmission parts and supports the load on the reducer. The worm gear is mainly used to transfer the motion and power between the two staggered shafts. The main function of the bearing and shaft is to transfer, operate and improve the efficiency.
The parts of worm gear reducer are explained as follows:
Shell: aluminum alloy (engine seat: 025-090) cast iron (stand: 110-150);
Worm: 20Cr steel. Carburizing of carbon and nitrogen (after fine grinding, the hardness of HRC60, hardness thickness is greater than 0.5mm);
Worm gear: special configuration of wear-resisting nickel bronze;
The oil cover/aerator is mainly used to discharge the gas in the box of the turbine worm reducer.
The end cover is divided into the big end cover and the small end cover. The end cover is the axial position of the fixed shafting part and the axial load is borne. The bearing cover is closed on both ends of the bearing hole.
Oil seal. The main use is to prevent the internal oil leakage of the chassis, improve the use time of lubricating oil;
Drain screw, mainly used for oil removal and cleaning.
Oil standard cover/oil label, mainly used to observe whether the oil quantity in the engine box of the turbine worm reducer is up to standard;
The parts of worm gear reducer are explained as follows:
Shell: aluminum alloy (engine seat: 025-090) cast iron (stand: 110-150);
Worm: 20Cr steel. Carburizing of carbon and nitrogen (after fine grinding, the hardness of HRC60, hardness thickness is greater than 0.5mm);
Worm gear: special configuration of wear-resisting nickel bronze;
The oil cover/aerator is mainly used to discharge the gas in the box of the turbine worm reducer.
The end cover is divided into the big end cover and the small end cover. The end cover is the axial position of the fixed shafting part and the axial load is borne. The bearing cover is closed on both ends of the bearing hole.
Oil seal. The main use is to prevent the internal oil leakage of the chassis, improve the use time of lubricating oil;
Drain screw, mainly used for oil removal and cleaning.
Oil standard cover/oil label, mainly used to observe whether the oil quantity in the engine box of the turbine worm reducer is up to standard;
2017年11月8日星期三
The material selection
The worm gear reducer is not well prepared in processing technology and material, it can cause the transmission failure. Worm gear speed reducer is also the problem that the gear reducer may encounter when making parts, such as the hardness of the hard surface speed reducer, and the unreasonable design of the screw lift bearing design.
Due to large worm drive meshing friction, worm gear hob is difficult to accurately backoff size and shape error. As a result of that the worm gear tooth surface is very difficult to work out and the worm tooth surface match completely to meet the requirements of the theory of conjugate condition. Therefore, the worm and worm gear tooth should have both wear resistance and good running performance.
Worm materials generally made of alloy steel or high quality carbon steel, and worm gear tooth surface by carburizing, quenching and nitriding heat treatment and high hardness, its hardness is between 35-55 HRC in general, but also has more than 60 HRC.
The materials used in worm gear ring are the most ideal for tin bronze, and the mechanical properties of centrifugal casting are the best in the process, followed by casting of metal mould, the most of which is not cast in sand mold.
Due to large worm drive meshing friction, worm gear hob is difficult to accurately backoff size and shape error. As a result of that the worm gear tooth surface is very difficult to work out and the worm tooth surface match completely to meet the requirements of the theory of conjugate condition. Therefore, the worm and worm gear tooth should have both wear resistance and good running performance.
Worm materials generally made of alloy steel or high quality carbon steel, and worm gear tooth surface by carburizing, quenching and nitriding heat treatment and high hardness, its hardness is between 35-55 HRC in general, but also has more than 60 HRC.
The materials used in worm gear ring are the most ideal for tin bronze, and the mechanical properties of centrifugal casting are the best in the process, followed by casting of metal mould, the most of which is not cast in sand mold.
2017年11月1日星期三
Considerations
The worm gear reducer shall not be damaged by gravity hammer and reducer. Worm gear speed reducer is normal to overhaul the installation foundation, sealing parts and transmission gearbox. If normal use, the highest temperature of the lubricating oil should be less than 85 ℃. If the oil temperature rise and change abnormal, produce abnormal noise and so on, must stop immediately check, after troubleshooting, can continue to use.
2017年9月29日星期五
Reducing machine noise processing method
Gear transmission schematic The noise generation of the Cycloidal reducers is mainly due to the friction, vibration and collision of the transmission gear, how to effectively reduce and reduce the noise, make it more environmentally friendly requirements is also a key research topic at home and abroad.
Reducing the gear transmission noise of the parallel shaft helical gearbox has become an important research topic in the industry. Many scholars at home and abroad regard the change of the meshing stiffness of the gear in the gear transmission as the main factor of the dynamic load, vibration and noise of the gear. With the modified method, so that the dynamic load and speed fluctuations to a minimum, in order to achieve the purpose of reducing noise. This method proved to be a more effective method in practice. But with this method, the process needs to have modified equipment, the majority of small factories are often unable to implement.
After years of research, it is proposed that by optimizing the gear parameters such as the displacement coefficient, the tooth height coefficient, the pressure angle and the center distance, the meshing impact velocity is reduced to a minimum, and the ratio of the outburst impact velocity to the hitting impact velocity is at a certain value Range, to reduce or avoid the impact of the pitch circle gear design method, but also significantly reduce the gear unit gear noise.
Reducing the gear transmission noise of the parallel shaft helical gearbox has become an important research topic in the industry. Many scholars at home and abroad regard the change of the meshing stiffness of the gear in the gear transmission as the main factor of the dynamic load, vibration and noise of the gear. With the modified method, so that the dynamic load and speed fluctuations to a minimum, in order to achieve the purpose of reducing noise. This method proved to be a more effective method in practice. But with this method, the process needs to have modified equipment, the majority of small factories are often unable to implement.
After years of research, it is proposed that by optimizing the gear parameters such as the displacement coefficient, the tooth height coefficient, the pressure angle and the center distance, the meshing impact velocity is reduced to a minimum, and the ratio of the outburst impact velocity to the hitting impact velocity is at a certain value Range, to reduce or avoid the impact of the pitch circle gear design method, but also significantly reduce the gear unit gear noise.
2017年9月24日星期日
Reducer type
The high torque gearbox is a relatively sophisticated machine that uses its purpose to reduce the speed and increase the torque. It has a wide variety of models, different types, different types have different uses.
There are many kinds of reducer, according to the type of transmission can be divided into worm reducer gearbox, worm reduction and planetary gear reducer; according to the different transmission stages can be divided into single and multi-stage reducer; according to the shape of the gear can be divided into cylindrical gear Reducer, Cycloidal Speed Reducer Gearbox and conical - cylindrical gear reducer; in accordance with the transmission layout can be divided into expansion, split and coaxial reducer.
There are many kinds of reducer, according to the type of transmission can be divided into worm reducer gearbox, worm reduction and planetary gear reducer; according to the different transmission stages can be divided into single and multi-stage reducer; according to the shape of the gear can be divided into cylindrical gear Reducer, Cycloidal Speed Reducer Gearbox and conical - cylindrical gear reducer; in accordance with the transmission layout can be divided into expansion, split and coaxial reducer.
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