Machinery manufacturing industry as a traditional area has developed over the years, accumulated a lot of theory and practical experience, but with the development of society, people s living standards are improving all aspects of individual needs has become increasingly strong. As has-been deep into all walks of life and has become the foundation of the machinery manufacturing industry is facing severe challenges. From the international market, with the international financial crisis after the economical recovery, sand making machine industry as a broad market prospect. However, we should also see the cost of work to bring the price of China s comparative advantage is the low end products with a strong engineering machinery an important factor in competitiveness, with the deepening of economic development mode shift, this will be difficult to sustain a competitive advantage; also for this reason, high-end products and accelerate the integration of the engineering machinery industry will be the future development of the two main line, which is the construction machinery enterprises in the competition, new opportunities to achieve leapfrog development. Although modern test technology and equipment is continually updated, but because of mining machinery and equipment to the complexity of their work environment, the complexity and large number of unpredictable contingencies of existence, many complex problems to be studied further.

Mechanical design is not mature enough security. Although many mechanical design of the security has been relatively mature theories and methods, but for some large, complex key mining equipment, the current safety design is only theory, not yet mature, perfect security design methods. Statistics show that 80% of mine casualties are caused by human factors, due to mining of hard and dangerous work, incorrect use of hammer crusher, mining machinery practitioners composition is complex, part of the machinery and equipment operators culture low quality, understanding of the safety performance of the equipment enough, self-protection consciousness, barbaric habit is caused by mining operations and other mechanical accidents an important factor. As china s mining equipment and continuous improvement of science and technology and development, from mechanization to automation and semi-automated direction! Of human intelligence and technology requirements are higher and more stringent. In order to do the work in the production of safe, efficient, and promote the establishment of China s machinery and the security system implemented, we must speed up from now on in the design, research and other work of mining machinery safety training of technical personnel to strengthen the operational and technical selection and training of workers, improve the skill level of employees mining machinery and safety awareness, continue to promote coal mine safety training, standardization, and better designed to improve safety awareness and skill level.