Allgemeines » Composition and description of sand making machine structure

No matter what equipment is constructed from multiple parts, the sand making machine is now one of the main products of Shanghai SBM Heavy Industry. Many customers who buy sand making machines only know that the sand making machine is used to make stones into sand. It is also unclear what the sand making machine is composed of, here SBM Xiaobian makes a detailed description of the structure of the sand making machine. The sand making machine produced by Shanghai SBM is composed of seven parts, such as a feed hopper, a distributor, a vortex crushing cavity, an impeller body, a main shaft assembly, a base, a transmission device and a motor. Feed hopper The structure of the feed hopper is an inverted prism (or cylinder). The feed port is provided with a wear ring. The incoming material from the feeding equipment enters the crusher through the feed hopper. Distributor The distributor is installed in the upper part of the vortex crushing chamber.The function of the distributor is to divide the material from the feeding hopper, so that a part of the material directly enters the impeller through the central feeding pipe and is gradually accelerated to a higher speed and ejected. , Make another part of the material from the outside of the central feeding tube, bypass into the outside of the impeller in the vortex crushing chamber, and be crushed by the high-speed material ejected from the impeller, without increasing power consumption, increasing production capacity, and improving crushing efficiency . The structure of the vortex crushing cavity is an annular space composed of upper and lower cylinders. The impeller rotates at high speed in the vortex crushing cavity, and the material can also reside in the vortex crushing cavity to form a material lining. The crushing process of the material occurs in the vortex crushing cavity. The crushing effect is separated by the material lining layer, so that the crushing effect is limited to the material, and it plays the role of wear-resistant self-lining. The observation hole is to observe the wear of the wear block at the launch port of the impeller flow channel and the wear of the lining plate on the top of the vortex crushing chamber. The observation hole must be tightly closed when the crusher is working. The distributor is fixed on the upper cylindrical section of the vortex crushing chamber. The impeller rotates at high speed to generate air flow, and the internal self-circulation system is formed in the vortex crushing chamber through the distributor and the impeller. Impeller The impeller structure is a hollow cylinder made of special materials. It is installed on the upper end of the main shaft assembly. It uses a conical sleeve and a key to transfer the button distance and rotate at high speed. The impeller is a key component of the sand maker. The material enters the center of the impeller through the central feeding pipe of the feeder on the impeller. The cloth cone in the center of the impeller distributes the material evenly to each launching runner of the impeller, and a wear-resistant block made of special material is installed at the exit of the launching runner, which can be replaced. The impeller accelerates the material to a speed of 60-75m / s and ejects it out of the base. The vortex crushing cavity, the main shaft assembly, the motor, and the transmission device are all installed on the bottom seat. Used to install the main shaft assembly, forming the discharge channel on both sides. Double motors are installed at the longitudinal ends of the base. The base can be installed on the bracket or directly on the foundation. The transmission device adopts a single-motor or dual-motor driven belt transmission mechanism (more than 75kw, dual-motor transmission). The two motors drive the two motors installed on both sides of the spindle assembly, and the two motor pulleys are connected to the spindle pulley with a belt. The forces on both sides are balanced and no additional moment is generated. Brackets Depending on the work place of the crusher-open-air or indoor work, consider installing a bracket or not. The lubricating system adopts special grade centralized lubrication for vehicle grease. The lubricating parts are the upper bearing and the lower bearing of the main shaft assembly. In order to facilitate oil injection, the oil pipe is used to lead to the outside of the machine.