Magnetic force transmission device

Abstract

The invention relates to a magnetic force transmission device which comprises a transmission vacuum pipe and a pure iron core sliding component arranged in the transmission vacuum pipe. The pure iron core sliding component comprises a roller, a roller shaft, roller supports and a pure iron core, the roller is connected with the roller supports through the roller shaft, a fixing shaft is arranged at each of two ends of the pure iron core, the roller supports are sleeved on the fixing shafts at the two ends of the pure iron core respectively, a ball bearing is arranged between each roller support and the corresponding fixing shaft, and an outer ring of each ball bearing is fixedly connected with the corresponding roller support while an inner ring of the same is closely matched with the corresponding fixing shaft. Due to arrangement of the ball bearings, a transmission rod and the pure iron core can be ensured to be in radial rotating motion around the central axis of the transmission vacuum pipe. Due to arrangement of the roller, the pure iron core sliding component is enabled to be capable of freely moving axially along the central axis of the transmission vacuum pipe, and transmission of samples in different cavities and accurate positioning of the samples can be realized.

Description

technical field [0001] The invention relates to a magnetic force transfer device used for transferring samples between multi-chamber vacuum systems. Background technique [0002] In a multi-chamber vacuum system, because different tasks require samples to be transferred in different vacuum chambers or moved to different positions, a device called a magnetic transfer mechanism is required. Due to the unreasonable internal structure of the earliest ordinary magnetic force transmission device, the pure iron core in the vacuum tube and the inner wall of the vacuum tube during the forward and backward movement and rotation are completely mechanically frictional, causing certain pollution to the vacuum system, and its service life is limited. The magnetic transmission device described in the patent ZL90226957.7 has some improvements on both ends of the pure iron core. It mainly adopts the roller method during axial movement, but it is still completely between the side of the rolle...

AI Technical Summary

Problems solved by technology

Due to the fact that the inside of the vacuum tube is not easy to process, resulting in low precision of the inner surface and deformation after baking, etc., there is mechanical friction during the transfer and rotation process, which causes the jamming phenomenon, which seriously affects the alignment accuracy of the transfer sample during the transfer process.

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