An automatic compensation device for the gap of the C-arm of a medical mobile X-ray machine

Abstract

The invention provides a medical mobile X ray machine C-type arm clearance automatic compensation device and belongs to the technical field of medical instruments. The device structurally comprises a C-type arm support (1), a guide wheel support (2), a lateral automatic compensation spring (3), a lateral fixed guide wheel assembly (4), an axial floating guide wheel shaft (5), an axial floating guide wheel assembly (6), a C-type arm (7), a lateral floating guide wheel assembly (8), an axial fixed guide wheel assembly (9), an axial automatic compensation spring (10), a spring seat (11) and a spring press plate (12). The device is characterized in that when the C-type arm (7) moves in an automatic compensation guide rail, once the section size of the rail of the C-type arm (7) changes in the certain tolerance range, the guide wheels of the automatic compensation guide rail contact with the rail of the C-type arm (7) constantly, and the rail of the C-type arm (7) slides along the automatic compensation guide rail stably. The device has the advantages that the device is compact in structure, light, convenient to install and low in cost.

Description

technical field [0001] The invention belongs to the technical field of medical equipment. Background technique [0002] The existing mobile X-ray machine C-arm sliding device along the track usually adopts the following method: the lateral and radial guide wheels of the guide rail of the C-arm are fixed and cannot be adjusted. , the cross-section size is smaller than the lower deviation, the track of the C-arm and the guide rail of the C-arm are stuck due to too tight fit, the cross-sectional size is larger than the upper deviation, and the track of the C-arm and the guide rail of the C-arm swing due to loose fit Or jitter, so that the motion accuracy of the equipment is greatly reduced, or even unable to work; secondly, due to the high tolerance requirements for the track section size of the C-arm, the processing technology is complicated and the cost is too high; in addition, due to the C-arm track and There is a certain gap between the guide rails. When the C-arm perform...

AI Technical Summary

Problems solved by technology

[0002] The existing mobile X-ray machine C-arm sliding device along the track usually adopts the following method: the lateral and radial guide wheels of the guide rail of the C-arm are fixed and cannot be adjusted. , the cross-section size is smaller than the lower deviation, the track of the C-arm and the guide rail of the C-arm are stuck due to too tight fit, the cross-sectional size is larger than the upper deviation, and the track of the C-arm and the guide rail of the C-arm swing due to loose fit Or jitter, so that the motion accuracy of the equipment is greatly reduced, or even unable to work; secondly, due to the high tolerance requirements for the track section size of the C-arm, the processing technology is complicated and the cost is too high; in addition, due to the C-arm track and There is a certain gap between the guide rails. When the C-arm performs 180° isocenter scanning, the C-arm will produce end surface runout and radial runout, which makes the C-arm isocenter scanning accuracy not meet the use requirements.

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