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With the rapid development of China’s industrial technology, machinery pneumatic tools have become an important part of the national machinery industry. The machinery includes pneumatic, internal combustion, hydraulic, electric rock drill, crusher and pavement excavators and so on. The impact crusher is widely used in various sectors of the mining machinery, municipal buildings, traffic engineering and machine shop.

Ball mill is equipped with the crusher, which can play a grinding function, increasing production and energy utilization. The crusher is beneficial from improving the economic and social benefits of building materials, mining, metallurgy enterprises in terms of energy saving, high efficiency. With the further improvement of the product design and manufacturing and further improvement of product quality, the crusher is gradually applied in the industrial production.

Relevant research indicates that the rare earth elements added carbide is able to strengthen the hardness and the bond, and clean grain boundaries, and thus it plays a role to improve the fracture toughness, flexural strength and hardness results. Lithotripsy machine dial material can choose the hard alloy by adding rare earth elements, its design should be based primarily on the incentive of impact failure and take into account the problem of cutting wear.

According to the crusher structure and working principle, the suitable speed of inner dial and outer drum are important conditions to ensure the normal operation of the crusher. The inner turntable speed is necessary to meet with enough impact force, and to ensure that the production, but also to avoid the critical speed of the inner dial to avoid resonance. The dial plate hammer of gravel machine withstands the strong impact with high-frequency, which requires high toughness, in order to avoid mechanical rupture.

The crusher equipment has a unique mechanism and structural design characteristics, Through several performance tests, we find that crusher equipment has good effect on improving material crushing effect, controlling particle size and reducing energy consumption.

With domestic spring cone crusher PYB1200 as an example, optimization design calculation, through to the data from the optimized concluded that the structure and performance parameters is how to influence the working performance of the cone crusher. Conclusion was added in the motion analysis Angle on productivity and crusher work effect on the performance of theory, the actual production of some guidance.

Cone crusher is designed according to the specific circumstances of analysis, and the comprehensive product grain shape, the productivity of the crusher, the dynamic performance requirements and other factors should also be considered. The basic points of the design process are large amplitude, high waving frequency, larger dynamic cone angle, optimized cavity shape and high energy output.

The material crushing is widely used in metallurgy, mining, construction, chemical, electric power and other industrial sectors. The cone crusher is the main material crushing equipment, and in order to achieve 'more crushing and less grinding' and energy saving target, cone crushers must carry out the necessary improvements and renovation. The selection of the parameters has a great impact on the product size and product particle size in turn directly affects the subsequent mill processing power, and ultimately affects the processing capacity of the concentrator. Therefore, the structure and performance parameters of crushers must be optimized, and the parameters of structure and performance of crushers should be chosen reasonably.

According to the general balance model, and puts forward some principles and some broken laminated kinematics characteristic of material. a rock cone crusher cavity productivity and broken grain shape distribution of products multi-objective mathematical model. Comprehensive consideration of the cone crusher multi-objective programming problems, the main target method, the crusher productivity as the optimization of the main goal, and crushing cavity parameters and broken product size distribution optimization design as a series of nonlinear optimal conditions.

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