11.7.12jaw

Jaw crusher design history and outlook
Jaw crusher for sale.Jaw crusher broken as a conventional device, due to its simple structure, reliable, easy to manufacture, easy maintenance, adaptability and good. Since its inception in 1855, has been widely used to smash equipment industry, the drawback is low efficiency, non-continuous fragmentation, crushing ratio and small, all countries improved their shortcomings, their level of automation has increased in recent years, there have some new models, such as dual-chamber double-acting jaw crusher, dual-chamber rotary crusher, jaw crusher screening, are placed outside the moving jaw jaw crusher, crushing down hanging jaw crusher and other 12 - q, due to the current actual use of the most compound pendulum jaw crusher, and a typical development process, this paper mainly in the compound pendulum jaw crusher jaw crusher example describes the design development process.
1 body design and optimization
Since 1951, China began to imitate compound pendulum jaw crusher has been a long time, people have to make the jaw a good motion characteristics can reduce wear and improve handling capacity, have a greater impact on some structural parameters such as the transmission angle, swing angle bracket, eccentricity, spindle suspension height, jaw stroke, nip angle, rod length, a lot of research work.
Traditional design methods in accordance with the point of the trajectory to design four-bar linkage structure breakers, the main analysis and graphical method, the use of design has been selected before the parameters such as nip angle, rod length, jaw stroke and so, according to the known track, the relationship between the use of, and seek the bar size, according to the design of the crusher model, connecting rod length, stroke and other moving pieces can be determined. Using the above method to determine the four agencies, the dispatch goes on to describe the trajectory of the jaw, decided to design satisfaction. Screening Machine for sale.
Nip angle from the traditional concept of geometry to work state Nie Nie corner angle. Work state nip angle refers to the actual work of the nip angle, because the premise of nip angle geometry significantly in some parts of the aging board does not hold, therefore, state workers and sometimes nip angle is greater than the design of the nip angle, with the attendant will have a Some materials, such as the corresponding consequences of slipping, a serious jaw plate wear and tear, increased material blockage. To improve these conditions, design a variety of jaw plate shape. The design process of a significant feature is that the spindle is suspended from the suspension height to gradually change the negative suspension [9-n], the upper jaw there is the level of suspension travel is small, high machine running unstable, the overall large size, high cost of processing shortcomings. Negative suspension can increase the level of jaw stroke, reduce the height of the machine, reducing machine weight, improve crushing effect. Now the re-kneading with a crushing jaw crusher is generally zero suspension, while the use of small and medium crushing Jaw crusher mostly using negative suspension.
In addition, the bearing bracket and there are also positive and negative points. The traditional compound pendulum jaw crusher is mainly used support. With the advanced body design of the gradual application of negative support has also been widely used, that is, angle bracket for the complex structure. As a negative bearing type fixed points of the jaw is smaller than the vertical travel to support the jaw, jaw plate so that will help reduce wear, improve product uniformity, reduce losses, the height from the crusher, because the negative support crusher's bottom fixed hinge point type than is supported by, the machine is a high degree of support than the low, when negative bearing type bracket length is very small, it evolved into another way of supporting that type of roll support ,Ore crusher For Sale. which is supporting the moving jaw into roller.