Development of Magnetic Head Carriage

软盘驱动器是个人计算机的外部可擦存储器设备。软盘驱动器的尺寸越来越小，只有3.5英寸或2英寸。一个的重量是战斗机和更轻，它被要求是更高的质量。软盘驱动器的磁头架是软盘驱动器中记录信息的重要部件。一个好的录音需要磁头滑块和软盘之间有稳定的接触。最重要的是，一个听过的滑块接触软盘没有空间。但软盘驱动器在强振动下，磁头滑块与软盘之间有空隙。为减小空间，研制了一种新型的上车架支撑机构。普通的上车架采用板弹簧悬臂支撑，板弹簧的振动能力较弱。新开发的头架支承机构，降低了头滑块的振动程度。柔性支架采用简支增加刚度，支撑点处力矩平衡。首先从理论上发现，新开发的平衡型比悬臂式更能减小振动程度。然后通过实验验证了理论结果的有效性。以铝为材料，设计了一种实际的平衡式头架。

A floppy disk drive is an external erasable memory equipment of personal computer. The size of floppy disk drive is smaller and smaller to 3.5 inches or 2 inches. The weight of one is fighter and lighter, and it is asked to be higher quality. The head carriage of floppy disk drive is most important part as recording information. A good recording needs to be stable contact between a head slider and the floppy disk. It is most important that a heard slider contacts the floppy disk without space. But the floppy disk drive has the space between the head slider and the floppy disk under strong vibration. To decrease the space, a new supporting mechanism of upper head carriage was developed. The normal upper head carriage is supported like a cantilever with plate spring which is weak for vibration.The newly developed supporting mechanism of head carriage reduces the degree of vibration of the head slider. The flexible heard carriage is simply supported to increase the stiffness, and the moment about the supporting point is balanced. At first it was found theoretically that the degree of vibration is reduced in the newly developed balance type more than in the cantilever one. Next the validity of the theoretical results was proven by experiment. An actual head carriage of the balance type was designed by using aluminum as material.