Automatic grabbing mechanism

Abstract

The invention discloses an automatic grabbing mechanism. The automatic grabbing mechanism comprises a main body piece, an expansion rod, an expansion sleeve, an expansion rod elastic piece, an pushingpiece and a locking mechanism, wherein the bottom of the main body piece is provided with the expansion sleeve axially arranged in the vertical direction; the expansion rod penetrates through the expansion sleeve and can move up and down along the expansion sleeve in the axial direction, the outer diameter of the expansion sleeve is expanded when the expansion rod moves up, and the expansion rodelastic piece used for driving the expansion rod to move down and reset is further arranged between the expansion rod and the main body piece; and the pushing piece is connected to the main body piecein an up-and-down sliding manner and exceeds the bottom of the main body piece, and the locking mechanism used for locking connection or unlocking separation of the pushing piece and the expansion rod is arranged on the pushing piece. The automatic grabbing mechanism realizes automatic and accurate grabbing of filter elements, does not need manual extra operation, does not need operation in a visual environment, realizes blind operation, can guarantee the high-efficiency stability of filter element replacement, has good grabbing reliability and high stability, and cannot cause the situation that the filter elements fall accidentally.

Description

technical field [0001] The invention relates to the technical field of grabbing mechanical devices, in particular to an automatic grabbing mechanism. Background technique [0002] In nuclear power plant boron recovery system (TEP), radioactive waste liquid treatment (TEU) and other systems, filters are installed. When the system resistance drops or the radioactive dose exceeds the standard, the filter element of the filter needs to be replaced regularly. Since the filter element contains radioactive residues and the radioactive dose is high, the operator cannot directly contact and replace the filter element. The filter element must be replaced through a certain replacement and transfer device to protect the personal safety of the operator and prevent the radioactive material from causing harm to the operator. . [0003] The position of the filter is generally located in the ground steel box below the ground. The main components of the filter include the ground hatch cover...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved and the technical task proposed by the present invention are to improve the existing technology and provide an automatic grasping mechanism to solve the problem that the traditional grasping mechanism in the current technology is difficult to accurately and reliably grasp the filter element and the replacement operation of the filter element is difficult , the problem of low efficiency

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