Elastic upper box efficient anti-sliding flat-die granulator

Abstract

The invention discloses an elastic upper box efficient anti-sliding flat-die granulator. The granulator comprises a main shaft of which the axial direction is a vertical direction, the main shaft penetrates through an upper box body, a middle box body and a lower box body, the main shaft is connected with a driving motor, a compression roller frame is fixedly connected to the main shaft, a compression roller shaft with the axial direction being the horizontal direction is fixedly connected to the compression roller frame, a compression roller is rotationally connected to the compression rollershaft through a bearing, a mold disc is fixedly arranged below the compression roller, a plurality of mold holes are formed in the mold disc, the compression roller is located in the upper box body,the upper box body is of an integrated cylindrical structure formed by rolling a steel plate, internal resistance fluctuation points are arranged on the inner wall of the upper box body, a compressionroller and mold disc meshing mechanism is arranged on the flat-die granulator, and a self-lubricating device is arranged on the flat-die granulator. The flat-die granulator solves a plurality of technical problems that the production efficiency and large-scale production are influenced by a plurality of traditional flat-die granulators in use.

Description

technical field [0001] The invention relates to biomass granulation equipment, in particular to a flat-die granulator adopting an elastic upper box with anti-pressure roller sliding, and belongs to the technical field of mechanical equipment. Background technique [0002] The flat die pellet machine is a biomass fuel pelletizing equipment. The biomass debris on the mold plate is pressed into the hole to form the material particles of the designed shape through the pressure roller. The pressure roller in this equipment is installed on the upper surface through the pressure roller shaft. In the box, the roller shaft is fixedly connected to the roller frame, the roller is connected to the roller shaft in rotation, the mold plate is located under the roller, the rotation of the main shaft drives the roller frame to rotate around the main shaft, and the roller rotates the mold around the roller shaft The material on the plate is rolled, and the material on the extrusion die plate...

AI Technical Summary

Problems solved by technology

Serious wear of the pressure roller and the mold plate occurs

In order to solve this problem, the applicant proposed a pressure roller forced rotation mechanism in Chinese Patent No. 2015104197259. This structure has high meshing precision and can better solve the problem of pressure roller slippage, but this structure needs to be installed on the mold plate Or to process fixed teeth, it is necessary to install gears at the inner end of the pressure roller. On the one hand, it requires high machining accuracy and the installation process is cumbersome. Holes cannot be processed on the mold plate occupying the length, and the production capacity of the flat die pellet machine is positively related to the number of holes on the mold plate, so this scheme will actually reduce the production capacity of the equipment, and because the particle During the material pressing process, the material will enter the fixed teeth, because the gears will squeeze the materials when they mesh, and the thickness of the material solidified between the fixed teeth will become larger and larger after a long time. This will affect the transmission effect on the one hand, and on the other. Because the conical tooth mesh between the fixed teeth and the gear is the mesh between rigid parts, due to the shape of the conical teeth, these solidified materials will increase the radial and axial loads of the main shaft during the operation of the equipment, resulting in The connection between the equipment is loose, the noise is loud, and damage occurs. In order to avoid damage, the material solidified on the fixed teeth is generally cleaned manually every time the machine is shut down; the second is that the operation of the pressure roller is complicated and limited by the structure. If the lubrication is not good, the resistance will increase, which will also cause the pressure roller to slide. At present, it is generally lubricated when the machine is shut down. It is required to lubricate two to three times per shift, and even higher requirements are required under heavy loads; when the pressure roller grabs the raw material and forces it into the forming cavity, Affected by the moisture and temperature of the material, especially the thickness of the material layer in the forming chamber, the resistance of the pressure roller varies greatly. Due to poor lubrication, the phenomenon of stalling and stuffy car often occurs. In severe cases, the main shaft may break. A lubrication system is installed but the oil hole on the main shaft is too long. On the one hand, it is difficult to process, and on the other hand, the strength of the main shaft is weakened. The main shaft on the flat die pellet machine is the core force-bearing part, and its strength is strictly required. The current flat die granulator has the above lubrication problems; the third is that the thickness of the current flat granulator will also change with the different materials. When the thickness of the material layer changes, it also needs to be shut down and manually adjusted. The pre-tightening nut is used to adjust the pre-tightening force. If the pre-tightening force is not suitable, it will seriously affect the frictional force between the pressure roller and the mold plate that must maintain the rotation of the pressure roller, and it will also cause the pressure roller to slide. The existence of the above problems restricts the flat Large-scale development of die pellet machine and work efficiency in production use

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