Coal sizer crusher is widely used in mining, smelting, building materials, highway, railway, water conservancy and chemical industry and many other sectors, roll crusher, also known as roll crusher, double roll crusher, roll crusher, is the use of friction on the roll surface of the material bite into the crushing area, make it withstand extrusion or splitting and crushing machinery. Roller crusher is usually divided into single roll, double roll and multi-roll crusher according to the number of rollers. It is mainly suitable for the coarse and intermediate crushing of brittle block materials in mining, metallurgy, chemical industry, coal mining and other industries. Its feeding granularity is large, discharging granularity is adjustable, and it can crush materials with compressive strength ≤160mp. In particular, in the coal industry, raw coal can be broken directly with this machine after iron removal,
Impurity removal and gangue removal. The broken materials have uniform particle size and low over-crushing rate, thus simplifying the coal preparation process and reducing investment and production costs. Due to its large mechanical volume, roll breakers currently exist in the market. Therefore, there are many maintenance hazards in the actual use. The most common is that the broken teeth are difficult to be replaced. When any one of the broken teeth is broken or falls off, it needs to be replaced and repaired as a whole, and the cost is very high.
The technical problem to be solved is to provide a simple structure, convenient maintenance and low cost of coal sizer crusher tooth roll assembly. The technical problems to be solved are achieved by the following technical solutions: Tooth roll assembly of coal sizer crusher, which is characterized in: The main body comprises two groups of drums, the two groups of drums are arranged in parallel, between the drums reserved gaps, the drum is fixed in the grinding case, the drum is provided with a driving gear, the drum is provided with
equidistance holes, the hole edge are provided with two groups of screw holes. The perforations arranged on the two groups of rollers are staggered, which is convenient for the crusher to work and make the material waste broken more evenly and thoroughly. The perforations are set as trumpet holes, which is convenient for the installation of crushing teeth and has stronger stability. In use: First of all, the corresponding single crushing tooth is directly inserted into the tooth hole, and then fixed by screws, it can be operated and used. In the work, if one of the crushing teeth of any coal sizer crusher is damaged, as long as the damaged part is replaced, it is not only convenient to operate, but also simple to maintain. The beneficial effect is that the invention has the advantages of new design, simple structure, installation and docking between the split gear and the drum, not only convenient maintenance, but also obvious working effect, good practicability, high market value, and convenient promotion and application.