The basic knowledge of electric roller 1. The application range and characteristics of electric roller The electric roller and deceleration mechanism are placed in the drum inside the drum and the external drum motor with the speed reduction mechanism inside the cylinder body, mainly used in stationary and On the mobile belt conveyor, instead of the traditional motor-reducer-driving drum, an external drive is formed.
With the rapid development of the national economy and the continuous improvement of the technical level of electric drums, electric drums are used as drive units on bucket elevators and as active rollers on belt conveyors to transport a variety of loose and piece-like items. Emergency stop required, optional drum motor with brake. Single-rotation is required to prevent the falling of the transported material and the electric roller with backstop can be used. Where there is a flammable gas, flameproof electric drums may be used. In short, due to its compact structure, high efficiency, low energy consumption, low noise, long life, smooth operation, reliability, good sealing, small space, easy installation and maintenance, it will be more widely used in metallurgy and chemical industry. , building materials, coal, transportation, energy, food, commerce, post and telecommunications, ports and other fields.
Applicable conditions:
a. Roller should be installed horizontally, the tilt angle should not be greater than 5 degrees;
b. ambient air temperature - 20 - 40 degrees Celsius;
c. The altitude does not exceed one kilometer, and special design can also meet the roller more than five kilometers;
d. The temperature of the conveying material does not exceed 60 degrees Celsius;
e. Voltage 380v, frequency 50Hz, can also meet 380/660v 660/1140v.
Second, the type of commonly used electric roller 1, according to the motor cooling mode classification 1 oil-cooled electric drum This type of electric drum is also called indirect oil-cooled electric drum. There is a certain cooling oil in the drum. As the drum rotates, the scraper on the drum will continuously pump the oil to the motor gear to take away the heat generated by the motor and the gear. Transfer to the wall of the drum to accelerate the motor's heat dissipation and create a lubricating effect on the gears. The key to the oil-cooled drum motor is that no oil is allowed inside the motor. This type of electric drum is currently the most common electric drum in China.
2 oil-immersed electric drum This electric drum is also called direct oil-cooled electric drum. As the name suggests, this type of drum motor allows the oil to enter the interior of the motor, directly in contact with the rotor and stator windings of the motor, and the heat generated by their operation is transmitted to the drum wall by the drum body constantly rotating. Therefore, theoretically, the effect of oil transfer is better than oil-cooled, and the requirement for the sealing performance of the motor is eliminated. However, the oil-immersed drum motor requires relatively high quality of the cooling lubricant and the motor. This type of drum motor is used more often abroad.
3 Air-cooled drum motor This type of drum motor is characterized by the fact that the motor does not require oil cooling, and the oil or grease only lubricates the retarder. The cooling of the motor depends on the convection of conduction, radiation and wind. This type of roller is rarely used in the country. 2, according to the structure of the type of classification 1 built-in electric drum built-in electric drum is the motor and the deceleration mechanism is placed inside the cylinder, forming a fully sealed internal drive.
2 Externally mounted drum motor The external drum motor is equipped with a speed reduction mechanism inside the cylinder and an external motor. Outer can be divided into direct and separate type. The direct connection type is that the motor is integrated with the roller support and the motor does not need to support the support. Separate type is divided into in-line type and vertical type, the motor foot needs to be supported, and coupling or coupling is used with the roller.
3, classified by transmission structure
3. The depositing speed of the plating is slow, and it is difficult for the brush plating with a large thickness to be labor-consuming. If cold welding is combined with brush plating, this problem is solved.
4. There is no suitable chrome face brush plating solution and it is impossible to repair the chrome face roller (roller) with severe pressure. The material used for the cold welding machine is any conductive metal, which can solve this problem well.
Features Roller printing, like newspaper printing, is a high-speed process that can produce more than 6,000 yards of printed fabric per hour. This method is also called mechanical printing. In roller printing, the pattern is printed on the fabric by engraving a copper cylinder (or roller).
The copper rollers can be engraved with tightly arranged fine lines that can print very detailed and soft patterns. For example, the fine, dense Pellisley vortex print is a type of pattern printed by roller printing. Necklace engraving should be exactly the same as the pattern designer's design artwork. Each design needs an engraving roller.
Roller printing is the production method that uses the least amount of large-volume printing, and the output continues to decline every year. If the batch production of each pattern is not very large, this method is not economical. In most cases, roller preparation and equipment adjustments are expensive and costly, making printing using this method less economical. However, roller prints are often used for printed paisley vortex tweed prints with a very thin line pattern and major print patterns that are printed in large quantities in many seasons.
The size of the engraved flower tube depends on the printing machine and the print pattern. Most printers can be configured with a 16-inch flower cylinder, which means that the size of the print pattern cycle cannot exceed 16 inches. The width of the stencil should be slightly larger than the width of the printed fabric so that the fabric, including the hem, can be completely printed with the pattern. Once prepared, the printing cylinder can be used almost unlimitedly, and generally there is no problem printing a few million yards of fabric.
With the rapid development of the national economy and the continuous improvement of the technical level of electric drums, electric drums are used as drive units on bucket elevators and as active rollers on belt conveyors to transport a variety of loose and piece-like items. Emergency stop required, optional drum motor with brake. Single-rotation is required to prevent the falling of the transported material and the electric roller with backstop can be used. Where there is a flammable gas, flameproof electric drums may be used. In short, due to its compact structure, high efficiency, low energy consumption, low noise, long life, smooth operation, reliability, good sealing, small space, easy installation and maintenance, it will be more widely used in metallurgy and chemical industry. , building materials, coal, transportation, energy, food, commerce, post and telecommunications, ports and other fields.
Applicable conditions:
a. Roller should be installed horizontally, the tilt angle should not be greater than 5 degrees;
b. ambient air temperature - 20 - 40 degrees Celsius;
c. The altitude does not exceed one kilometer, and special design can also meet the roller more than five kilometers;
d. The temperature of the conveying material does not exceed 60 degrees Celsius;
e. Voltage 380v, frequency 50Hz, can also meet 380/660v 660/1140v.
Second, the type of commonly used electric roller 1, according to the motor cooling mode classification 1 oil-cooled electric drum This type of electric drum is also called indirect oil-cooled electric drum. There is a certain cooling oil in the drum. As the drum rotates, the scraper on the drum will continuously pump the oil to the motor gear to take away the heat generated by the motor and the gear. Transfer to the wall of the drum to accelerate the motor's heat dissipation and create a lubricating effect on the gears. The key to the oil-cooled drum motor is that no oil is allowed inside the motor. This type of electric drum is currently the most common electric drum in China.
2 oil-immersed electric drum This electric drum is also called direct oil-cooled electric drum. As the name suggests, this type of drum motor allows the oil to enter the interior of the motor, directly in contact with the rotor and stator windings of the motor, and the heat generated by their operation is transmitted to the drum wall by the drum body constantly rotating. Therefore, theoretically, the effect of oil transfer is better than oil-cooled, and the requirement for the sealing performance of the motor is eliminated. However, the oil-immersed drum motor requires relatively high quality of the cooling lubricant and the motor. This type of drum motor is used more often abroad.
3 Air-cooled drum motor This type of drum motor is characterized by the fact that the motor does not require oil cooling, and the oil or grease only lubricates the retarder. The cooling of the motor depends on the convection of conduction, radiation and wind. This type of roller is rarely used in the country. 2, according to the structure of the type of classification 1 built-in electric drum built-in electric drum is the motor and the deceleration mechanism is placed inside the cylinder, forming a fully sealed internal drive.
2 Externally mounted drum motor The external drum motor is equipped with a speed reduction mechanism inside the cylinder and an external motor. Outer can be divided into direct and separate type. The direct connection type is that the motor is integrated with the roller support and the motor does not need to support the support. Separate type is divided into in-line type and vertical type, the motor foot needs to be supported, and coupling or coupling is used with the roller.
3, classified by transmission structure
3. The depositing speed of the plating is slow, and it is difficult for the brush plating with a large thickness to be labor-consuming. If cold welding is combined with brush plating, this problem is solved.
4. There is no suitable chrome face brush plating solution and it is impossible to repair the chrome face roller (roller) with severe pressure. The material used for the cold welding machine is any conductive metal, which can solve this problem well.
Features Roller printing, like newspaper printing, is a high-speed process that can produce more than 6,000 yards of printed fabric per hour. This method is also called mechanical printing. In roller printing, the pattern is printed on the fabric by engraving a copper cylinder (or roller).
The copper rollers can be engraved with tightly arranged fine lines that can print very detailed and soft patterns. For example, the fine, dense Pellisley vortex print is a type of pattern printed by roller printing. Necklace engraving should be exactly the same as the pattern designer's design artwork. Each design needs an engraving roller.
Roller printing is the production method that uses the least amount of large-volume printing, and the output continues to decline every year. If the batch production of each pattern is not very large, this method is not economical. In most cases, roller preparation and equipment adjustments are expensive and costly, making printing using this method less economical. However, roller prints are often used for printed paisley vortex tweed prints with a very thin line pattern and major print patterns that are printed in large quantities in many seasons.
The size of the engraved flower tube depends on the printing machine and the print pattern. Most printers can be configured with a 16-inch flower cylinder, which means that the size of the print pattern cycle cannot exceed 16 inches. The width of the stencil should be slightly larger than the width of the printed fabric so that the fabric, including the hem, can be completely printed with the pattern. Once prepared, the printing cylinder can be used almost unlimitedly, and generally there is no problem printing a few million yards of fabric.
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