Double-roller crusher, also called double-roller crusher, double-roller crusher, double-roller crusher, double-roller crusher, can be used to finely crush various high-, It is used for ores and rocks with medium hardness, especially in stone production lines (manufactured sand production lines) to produce products such as guar rice stone and mung bean paste. It has a better effect than general crushing machinery and can reduce the particle size, particle shape and over-crushing phenomenon of the crushed products. When the requirements are very strict, a roller crusher must be used. The construction and mining machinery double-roller crusher (twin-roller crusher, double-roller crusher) mainly consists of roller skin assembly, roller skin support bearing, compression and adjustment device, driving device and other components. Development of Roller Crusher
The roller crusher appeared in 2000 and is a relatively old type of crusher. However, due to its simple structure and easy manufacturing, especially because the products are less over-crushed, it is still the choice until now. It is used in coal, metallurgical sintering, cement, glass and other industrial sectors. It can crush coal, coke, limestone, shale, feldspar and other materials. It can also perform medium and fine crushing of medium-hard and soft ores. Especially when crushing ores containing precious metals without requiring minimum mudification of the ores, the crusher is often used. Roller crusher. Depending on the number of rollers, roller crushers can be divided into single-roller crushers, double-roller crushers, double-stage three-roller crushers, and double-stage four-roller crushers. The shape of the roller surface can be divided into smooth roller crushers and toothed roller crushers. Two kinds.
Application of Roller Crusher
In high-volume, heavy-duty crushing production processes, roller crushers are often better than other types of crushers because of their better external structure and working characteristics. When the crushing force acts on the frame, the double-roller crusher occupies less space than the large cone crusher and causes less deformation to the installation base. The double-roller crusher has greater production capacity than the jaw crusher. , the disadvantage of the rolling stone crusher is that because the crusher is concentrated in the center of the roller, it requires high-strength shafts, bearings and support mechanisms. Roller crushers have been widely used since their emergence, but they have always been used as supporting equipment for jaw crushers, cone crushers, etc., as secondary crushing of materials. In other words, roller crushers have always been in a supporting role. status, the number in practical applications is relatively small.
Adjustment of the discharge particle size of the roller crusher
A wedge or gasket adjustment device is installed between the two rollers of the roller crusher (twin roller crusher, double roller crusher). There is an adjusting bolt installed at the top. When the adjusting bolt pulls up the wedge, the wedge pushes the movable roller away from the fixed wheel. That is, the gap between the two rollers becomes larger and the discharge granularity becomes larger. When the wedge moves downward, the movable roller moves upward. Under the action of the compression spring, the gap between the two rollers becomes smaller, and the discharge granularity becomes smaller. The gasket device adjusts the discharge granularity by increasing or decreasing the number or thickness of the gaskets. When the gasket is added, the gap between the two rollers becomes larger. When the gasket is reduced, the gap between the two rollers becomes smaller, and the discharge granularity becomes smaller. .
Disposal and installation of double roller crusher after wear
After the roller surface of double roller crusher (twin roller crusher, double roller crusher) is worn, the width of the discharge opening increases. At this time, all As the crushed material becomes larger, the movable roller needs to be adjusted (the jaw plate of a single-roller crusher is adjusted). When adjusting, attention should be paid to keeping the two rollers parallel to each other to prevent skew. For roller crushers using sliding bearings, attention should be paid to the clearance of the roller bearings. The top gap between the roller bearing bush and the journal is usually /~/ of the diameter of the journal, and the side gap of the bearing bush is /~/ of the top gap. The roller crusher should not be placed in an unventilated place that is prone to rust for a long time. The roller crusher can be installed on a concrete foundation or on the floor of a building to better withstand the uneven force generated by the machine during operation. , place wooden strips under the chassis to make the entire machine fit the wooden strips. The number of wooden strips and general cross-section can be found on the layout diagram of the roller crusher, and can also be selected according to the specific installation conditions. Of course, Yuantong Machinery will solve these installation problems for you.
Maintenance of roller crusher machine
The bearing crusher shaft bears all the load of the machine, so good lubrication has a great relationship with the bearing life, which directly affects the service life and The operating rate therefore requires that the injected lubricating oil must be clean and the seal must be good. The main oil filling point of this machine is the rotating bearing, roller bearing, all gears, movable bearings and sliding planes.
. Newly installed wheel hoops are prone to loosening and must be inspected frequently.
Pay attention to whether all parts of the machine are working properly.
Pay attention to check the degree of wear of easily worn parts, and replace worn parts at any time.
The bottom shelf plane where the movable device is placed should be free of dust and other materials to prevent the movable bearing from moving on the bottom shelf when the machine encounters materials that cannot be broken, resulting in a serious accident.
If the bearing oil temperature rises, the vehicle should be stopped immediately to check and eliminate the cause.
If there is any impact sound when the rotating gear is running, stop the vehicle immediately for inspection and eliminate it
Henan construction and mining manufacturers spot small roller crusher