The open mixer milll is mainly composed of roller, bearing, frame, gland, transmission device, pitch adjusting device, lubricating device, roller temperature adjusting device, emergency stop device and braking device. In actual production, there are various structural types of open mills, and the commonly used structural types are as follows.
(1) Open drive open mixer milll.
At present, the open mixer milll of several specifications used in production usually adopt this transmission form. The main motor drives the driving gear through the reducer and a pair of gears to drive the front and rear rollers. The two rollers have different linear speeds. Relative rotation. The distance between the rollers is adjusted by a pitch adjusting device, and the roller adopts a safety chip protection device. The roller bearing is usually lubricated with dry grease or thin oil circulating lubrication. The open mixer millll of this structure is characterized by reliable use and low cost.
The disadvantage is that the open gear is not easy to maintain, has a short life, low transmission efficiency, and the whole machine occupies a large area.
(2) Closed drive open mixer milll
The closed drive open mixer milll concentrates all the transmission gears in a reduction box. The front and rear rollers are driven by the main motor through the closed drive reducer and universal coupling. The roller bearing adopts double row self-aligning rolling bearing, and the distance adjustment method is mostly electric. The advantages of the closed-drive open mill are compact structure, high transmission efficiency, low noise, long life, and easy installation and maintenance.
(3) Double-motor drive open mixer milll
Double-motor drive open open mixer milll is a special type of closed-drive open mixer milll. The power is driven by two motors to drive two sets of reduction gears in the closed reducer. The front and rear rollers are driven by the shaft coupling to rotate. If a speed-regulating motor is used, the linear speed and speed ratio of the front and rear rollers can be adjusted within a certain range, so as to meet the requirements of different production processes. The roller bearing adopts double row self-aligning rolling bearing, and the pitch adjustment usually adopts electric pitch adjustment device. This kind of machine is characterized by compact structure, high efficiency, convenient maintenance and strong work adaptability. The disadvantage is that the manufacturing cost is high and the overall width is relatively large.
(4) Combination drive open mixer milll
The combination drive mill uses a reducer to drive the body part of two or more mills at the same time. The combination drive open mixer milll is often used in production, and the power is controlled by the main engine. After the motor is decelerated by the reducer, it is sent to the rear roller through the drum gear coupling # on the double-side output shaft of the reducer, and then the power is transmitted to the front roller through the speed ratio gear installed at the end of the roller. Both sides of the machine body work at the same time, and the speed ratio gears on both sides can adopt different speed ratios, so that the same double open mill can realize different production processes and shorten the conveying distance of the rubber. The combination drive mill is characterized by easy operation, high transmission efficiency, small footprint, and strong work adaptability.
(5) Integral open mixer milll
One set integral open mixer milll with a size of 450mm*1200mm in diameter. The power is decelerated by the motor placed under the roller and the gear installed in the inner cavity of the frame, and then transmitted to the driving large and small gears and speed ratio gears to drive the front and rear rollers to rotate. The roller bearings are equipped with self-aligning rolling bearings. Lubricate the device with thin oil. Electric distance adjustment is mostly used, but hydraulic distance adjustment and hydraulic safety devices can also be used. The integral open mixer milll is characterized by compact structure, high transmission efficiency, low noise, small footprint, and light weight. The disadvantage is that it is inconvenient to install, maintain, and repair.
(6) Hydraulic drive open mixer milll
Hydraulically drivenopen mixer millll uses hydraulic motors as the power source. A set of hydraulic motors are installed on both sides of the machine body and at the ends of the front and rear rollers to drive each roller individually. The linear speed and speed ratio of the front and rear rollers are adjusted by the hydraulic control system. The roller bearings adopt automatic self-aligning rolling bearings, and the roller pitch adjustment usually adopts hydraulic pitch adjustment. The hydraulic drive mixer milll is characterized by compact structure, high transmission efficiency, low noise, easy installation and maintenance, and superior safety performance. But the cost of the equipment is higher.
Jinan Power Roller Equipment Co., Ltd is a modern private enterprise embodying scientific research and production. The products we provide are: Rubber Roller Builder, Rubber Roller Grinding Machine, External Cylindrical Grinder, Emery Belt Precision Machine, Rubber Internal Mixer,open mixer milll，Fully Automatic Measuring Instrument, Grinding Head and Fitting of Equipment.
Post time: Dec-13-2021