A driving device for a magnetic resonance hospital bed

Abstract

The invention relates to a magnetic resonance sickbed drive device which comprises a machine frame, a supporting component, a left-right drive device, a front-back drive device and a moving bed plate. The supporting component comprises two bed plate guide rails, a front supporting plate and a rear supporting plate, a linear guide rail is connected on the front supporting plate and the rear supporting plate, the bottom of the linear guide rail is fixed on the machine frame, the moving bed plate is arranged on the bed plate guide rails in a sliding mode, the left-right drive device comprises a motor, a speed reducer, a clutch / brake device, a telescopic universal joint and a left-right gear drive component, a left-right drive gear at the output end of the left-right gear drive component is meshed with a left-right rack fixed at the bottom of the front supporting plate, the front-back drive device comprises the other motor, the other speed reducer, the other clutch / brake device, the other telescopic universal joint and a front-back gear drive component, and a front-back drive gear at the output end of the front-back gear drive component is meshed with a front-back rack fixed at the bottom of the moving base plate. The magnetic resonance sickbed drive device can be widely used in various magnetic resonance sickbeds.

Description

technical field [0001] The invention relates to a magnetic resonance equipment, in particular to a novel driving device for a magnetic resonance sickbed. Background technique [0002] Among the magnetic resonance systems currently on the market, the electric hospital bed realizes the automatic operation of the bed board, and is easy to operate, and has been widely used. However, magnetic resonance equipment is a medical device with a strong magnetic field and is very sensitive to the uniformity of the magnetic field. The use of electric hospital beds can easily interfere with magnetic resonance imaging, and the strong magnetic field of magnetic resonance equipment can also cause damage to electric control components such as motors of electric hospital beds. In order to solve the above-mentioned contradictions, components such as the drive motor and reducer of the hospital bed must be kept away from the magnets, thus resulting in the inevitable result of a large-distance tra...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned transmission device has the following two problems: first, the entire transmission system is relatively complicated, because the belt needs to be tensioned after a period of use, and if the above-mentioned secondary belt transmission needs to be tensioned, two support seats need to be adjusted to achieve the purpose of tensioning , In addition, in order to ensure the positioning between the four pulleys, the structure of the required support seat and support frame is quite complicated, and the precision requirements are also high, so it is inconvenient to manufacture, install and debug

second, figure 1 The rack in 63 and figure 2 The racks 74 in the rack are all directly or indirectly fixed on the bed board, when the bed board moves left and right, figure 1 The gear 64 must also move left and right with the bed board, so the power transmission between the gear 64 and the gear shaft needs to move forward and backward, and it needs to move left and right easily, so the ball spline structure is used between the gear and the gear shaft , requires precise machining and assembly, otherwise the above requirements cannot be met at the same time, thus increasing the production cost of the hospital bed

This driving device also has certain problems, such as: the cost of the screw rod is high, the processing of the slender shaft is difficult, and the assembly of the two is relatively complicated, so the above-mentioned transmission device also has difficulties in processing and manufacturing, inconvenient installation and debugging, and high cost problem

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