Centrifugal machine for traditional Chinese medicine extraction

Abstract

The invention relates to a centrifugal machine for traditional Chinese medicine extraction. A test tube frame and a motor are arranged in an inner cavity of a centrifugal machine body. The test tube frame is connected with a motor through a steel ball spring mechanism. The steel ball spring mechanism comprises a base in threaded connection with the test tube frame, a positioning sleeve and a connector. The base is in a step cylinder shape. A base step through hole is formed in the middle portion of the base from top to bottom. The positioning sleeve is distributed on the outer wall of the small-diameter section of the base. Two or more connecting columns are longitudinally arranged at the bottom of the small-diameter section of the base. The connecting columns are connected to the connector. The connector is in a step cylinder shape. The large-diameter section of the connector is in threaded connection with the motor. The small-diameter section of the connector penetrates the base step through hole. Two or more connecting holes are formed in the large-diameter section of the connector from bottom to top. The connecting columns are correspondingly inserted in the connecting holes. The inner side face of a centrifugal machine upper cover is coated with a sound isolation coating. According to the demand, the test tube frame in the inner cavity of the centrifugal machine is replaced and adjusted, the sound isolation effect of the centrifugal machine is improved, and the structure is simple.

Description

technical field [0001] The invention relates to the field of chemical equipment, in particular to a centrifuge for extracting traditional Chinese medicine. Background technique [0002] As a conventional instrument for centrifugal sedimentation, centrifuges are widely used in clinical medicine, biochemistry, blood banks and other fields. In the centrifuges currently used, a test tube rack is placed on the motor inside the centrifuge cavity. Most of the connections between the test tube rack and the motor are threaded or integrally connected. The test tube rack must be manually rotated until the thread is locked to fix the test tube rack and the motor. The process is cumbersome and inefficient. Generally, the centrifuge is equipped with a corresponding test tube rack. It does not match the motor, and the test tube rack cannot be connected to the motor. In addition, the screw connection has poor reliability and slow speed. When placing and removing the test tube rack, the tes...

AI Technical Summary

Problems solved by technology

Resonance occurs when the frequency of the disturbance force (that is, the frequency of rotor rotation) is equal to the natural frequency of the vibration system; therefore, the centrifuge generates vibration and noise during operation, and becomes the biggest producer and culprit of laboratory noise and dust pollution. , these are one of the most disgusting and troublesome problems for laboratory operators; the existing centrifuges prevent the body from vibrating by placing cotton pads at the bottom of the casing or placing the centrifuge tubes symmetrically in the casing during centrifugation. If there is only one sample tube and the other one should be replaced with water of equal quality to reduce noise, but the effect is not ideal, so choose a good centrifuge and operate the centrifuge correctly to ensure the safety and stability of the experiment. , how to reduce the noise of the centrifuge is one of the issues that every laboratory operator must consider

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