Wear resisting sand making machine hammer

smilewei

At present, in our country the sand making machine market was saturated state, excess capacity has been continued to open up overseas markets, and has become the new development strategy of mining machinery enterprises. As everyone knows, the technical level of mining machinery industry in China to a certain extent is lagging behind, some developed countries abroad. Sand making machine to open up overseas markets initiatives also inevitable challenges. In order to meet the needs of the market, our country sand making machine manufacturers must increase innovation, enhance the independent research and development ability, the only way to occupy the overseas markets.
Technical innovation, new sand making machine not only requires that we developed has broken higher efficiency, longer service life, but also has the function of energy saving and environmental protection, for the sustainable development of our country. Before the development of economy, regardless of the environment pollution and destruction of the economic model, we have paid a painful price. Now when the production of new sand making equipment, environmental protection must be taken into account, to maintain the sustainable development of economy.
Sand making machine manufacturers to repair or replacement of wearing parts, remove the connecting bolt extend body, can use the hydraulic slewing mechanism to move, very convenient. This machine is the use of lubricating oil lubrication, and is provided with a vibration protection device, so that the bearing service life greatly improved, when the machine is in operation, when the vibration exceeds a set value, will send a signal to the feed belt machine, make it stop feeding, a delay time of electric motor will automatically stop, to protect the machine damaged.
Because of the hard alloy blade and the matrix material closed rotor sand making machine in the combination of the two thermal expansion are different, the inevitable residual stress. Coupled with the impact caused by the collision of the rock, hard alloy blade damage. And the hard alloy blade itself is a kind of brittle material, so that the hard alloy blade is more easy to crack, and its matrix tend to be the material impact, the peripheral side is also very easy to wear. This dependence on cemented carbide inserts in the often easy to fall off. This is a closed rotor weakness. So the feed particle size control is very strict, and never allowed to have not broken objects such as iron and other materials into. The rotor is made of welding form, design in high speed operation, we must consider the impact of the edge stress. For the closed type rotor, how to prevent the hard alloy blade and the collision surface gap, crack or early wear and tear, so that the service life is improved, is the research direction in the future. On the open impeller, is in a flat plate is welded on the support column for installation of runner plate. Therefore, according to the support column and the flow passage plate shape, can be divided into radial type, forward and backward. Runner plate can be made into various shapes, to adapt to different material, different amount of processing. At present the use of radial type, its outlet is 3 - 6, the feed for the rotor feeding. Open impeller so strict on feeding requirements do not request to the closed impeller, the occasional piece of material into the impact can not be broken. But the runner plate makes the cycle short, especially in the wet crushing, its service life is to dry the broken 1/2, so how to improve the flow of life is a very important problem.
When the machine working parameters, for each material, in theory, there exists an optimum crushing cavity. Work only in the cavity, the crushing effect of new sand making machine is the most ideal. However, because many of the materials and the fragmentation of the ever-changing, new sand making machine manufacturers to design so many cavities, some famous sand making machine production factory is based on some standard of the crushing chamber, according to the above mentioned aspects of the crushing cavity design, optimization and correction. To achieve the optimal and near cavity.