The basic concept of electric drum

　　The electric drum is a new type of driving device that puts the motor and the reducer together inside the drum body. It is mainly used in fixed and mobile belt conveyors, instead of traditional motors, separate drive devices where the reducer is in addition to the drive drum.

　　 In recent years, according to the needs of certain special occasions of belt conveyors, there has been an external electric drum with a reduction device between the separate drive and the electric drum drive in the drum body and the motor outside the drum body.

Compared with the separate driving device, the electric drum has many advantages such as compact structure, high transmission efficiency, low noise, long service life, stable operation, reliable work, good sealing, small space occupation, convenient installation, etc., and it is suitable for various Work under harsh environmental conditions. Including humid, muddy, and dusty working environments.

　　■ The basic classification of electric drum

　　 There are currently four basic methods for the classification of electric drums. That is to say, according to the cooling method of the motor, the type of transmission structure of the reducer, the basic working environment characteristics of the electric drum and the method of placing the motor inside and outside the drum to classify the electric drum.

　　 According to the different cooling methods of the motor, the electric drum can be divided into three categories

　　Air-cooled electric drum

　　The characteristic of this kind of electric drum is that the motor does not need to be cooled by oil, and it can be divided into forced air cooling and natural air cooling by conduction, radiation and convection of wind.

　　 oil-cooled electric drum

　　This kind of electric drum is also called an indirect oil-cooled electric drum. There is a certain amount of cooling oil in the electric drum. Because the drum body continuously rotates, the oil scraper on the drum body continuously pours the oil onto the motor and gear, taking away the heat generated by the motor and gear when it is working, and reducing the heat. It is transmitted to the wall of the roller body to accelerate the heat dissipation of the motor and lubricate the gears. The key to oil-cooled electric drums is that no oil is allowed to enter the inside of the motor.

　　 oil-immersed electric drum

Oil-immersed electric drums are also called direct oil-cooled electric drums. This type of electric drum allows oil to enter the motor and directly contact the motor rotor and stator windings. The heat generated during their work is transferred by the continuous rotation of the drum body. To the inner wall of the drum. This structure has better heat dissipation effect, but relatively high requirements on the quality of lubricating oil and the motor.

　　 According to the transmission structure of the reducer, the type of electric drum is divided

　　 There are many types of reducers produced at home and abroad, but currently there are no more than three types that can be mass-produced on electric drums.

　　Motor drum driven by fixed shaft gear

　　The most commonly used reducer device for electric drums at home and abroad is fixed-axis gear transmission, and more than 95% of gear transmissions are fixed-axis involute cylindrical gear transmission structures. The transmission structure is simple, reliable, easy to manufacture, easy to install and maintain, and has the advantages of high efficiency and low noise. Two-stage deceleration is commonly used, and a few are three-stage deceleration.

　　Motorized drum driven by line gear

　　 Compared with fixed-axis gear transmission, this type of transmission has the advantages of small size, light weight, large carrying capacity, and stable operation, but it is not convenient to maintain. This type of structure is common in foreign electric drums.

　　 Cycloid pin wheel drive electric drum

　　This type of structure can be described as "Chinese characteristics". Except Japan, other countries rarely use this type of transmission structure. The electric roller with the transmission structure of the cycloid pin wheel can achieve very small linear speed and high power.

　　According to the application environment of the electric drum to judge points

　　 There are three common applications for electric drums: ordinary, corrosive and flammable and explosive. If subdivided, there are high temperature, humid tropical and some special occasions, but the number of electric drums used in these occasions is not large, and they are generally only produced as non-standard electric drums.

　　 Currently commonly used are: TDY75 oil-cooled electric drum, DY1, JYD mobile electric drum, YZ cycloidal pinwheel electric drum, TJ oil-immersed electric drum

　　YD oil-cooled electric drum YZW external-mounted electric drum TZDT series electric drum FXT air-cooled electric drum

　　YDN, JDT type oil-cooled and oil-immersed electric drum, automatic adjustment and deviation prevention electric drum

　　 WXT, WXN electric drum YDY1, JDY1 oil-cooled oil-immersed electric drum JYD oil-cooled electric drum

　　 QYD type oil-cooled electric drum SPJ reversing drum group YZ type oil-cooled, oil-immersed cycloid electric drum

　　 WD (Ⅱ) type externally mounted deceleration drum TZDG series precision light electric drum (electric rod) YDJD type speed regulating electric drum

　　YTH-type external reduction drum YBN, JBT-type oil-cooled oil-immersed electric drum YT-type oil-immersed electric drum

　　 YHTL type electric roller table drum W (X, B, D) T, W (X, B, D) N type exterior drum YDB type explosion-proof oil-cooled electric drum

　　 WZ type external electric drum TMF new type conveying mechanical drive system WBT2000 series cycloid pin wheel motor external electric drum

　　 BYD type cycloidal pin wheel oil-cooled electric drum

　　The advantages of electric drum:

　　The electric drum is used as the power of belt conveyors and lifting equipment. It is widely used in mining, metallurgy, chemical, coal, building materials, electric power, food and transportation sectors. The electric drum produced by our factory has three transmission modes: fixed shaft gear and planetary gear cycloid needle transmission. The installation types include motor built-in, external and mobile. When the motor is built-in, there are two types of oil cooling and oil immersion. Compared with general deceleration mechanism, it has the advantages of compact structure, light weight, good sealing performance and convenient installation.