Isocentric rotating system of mammary gland X-ray machine

Abstract

The invention relates to an isocentric rotating system of a mammary gland X-ray machine, comprising a power element and a transmission assembly, wherein the transmission assembly is connected with the power element and a C-shaped arm and comprises a ring-surface screw gearing, and the ring-surface screw gearing is connected with the C-shaped arm, drives the C-shaped arm to act and comprises a worm and a worm wheel; the ring-surface screw gearing is used for driving the C-shaped arm to act so that the transmission assembly is in multi-teeth meshing transmission so as to achieve steady transmission, very low noise, a large number of contracted teeth during the transmission, larger contact surfaces of tooth surfaces, instantaneous double-wire contact, long total length of a contact wire, long comprehensive curvature radius, little contact stress, large meshing lubrication angle, easy dynamic pressure oil film forming during meshing and tooth surface abrasion reduction; an equivalent weight curvature radius is long, thus the transmission efficiency is higher, and the carrying capacity is high; and besides, the ring-surface screw gearing has a self-locking function so as to play safetyand protection roles and realize the accurate positioning of the C-shaped arm at different positions.

Description

【Technical field】 [0001] The invention relates to a mammary gland X-ray machine, in particular to an isocentric rotation system of a mammary gland X-ray machine. 【Background technique】 [0002] The isocentric rotation system of the mammography machine connected with the C-arm in a traditional mammography machine adopts the sprocket drive assembly and the C-arm transmission connection to realize the C-arm rotation function, which requires the chain to have high dimensional accuracy and good strength , and the stability of the sprocket transmission is poor. At the same time, a multi-chain method must be used to ensure the safety of the transmission, and a tensioning device must be added to ensure the tension of the chain. There is also a risk of chain breakage. 【Content of invention】 [0003] Based on this, it is necessary to provide an isocentric rotation system of a mammography machine with better transmission stability. [0004] An isocentric rotation system of a mammog...

AI Technical Summary

Problems solved by technology

[0002] The isocentric rotation system of the mammography machine connected with the C-arm in a traditional mammography machine adopts the sprocket drive assembly and the C-arm transmission connection to realize the C-arm rotation function, which requires the chain to have high dimensional accuracy and good strength , and the stability of the sprocket transmission is poor, and the multi-chain method must be used to ensure the safety of the transmission, and a tensioning device must be added to ensure the tension of the chain

There is also a risk of chain breakage

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