SU773715A1

SU773715A1 - Device for transporting record carrier

Info

Publication number: SU773715A1
Application number: SU792750125A
Authority: SU
Inventors: Вацловас Стасио Кишкис
Original assignee: Предприятие П/Я А-3593
Priority date: 1979-04-12
Filing date: 1979-04-12
Publication date: 1980-10-23

Description

Изобретение относится к технике магнитной записи, а именно к устройствам привода носителя.The invention relates to techniques for magnetic recording, and in particular to media drive devices.

'Известно устройство для транспортирования магнитной ленты, содержащее вал с установленный на нем диском, и резонатор, соединенный с пьезопластинами £1).'A device is known for transporting magnetic tape, comprising a shaft with a disk mounted on it, and a resonator connected to piezoelectric plates £ 1).

Недостатком устройства является малый коэффициент полезного действия, обусловленный потерями в резона* торе.’The disadvantage of this device is the low efficiency due to losses in the resonator * torus. ’

Наиболее близким по технической сущности и достигаемому эффекту, к описываемому является устройство для транспортирования носителя записи, содержащее диск, вал, укрепленный в диске, и пьезоэлектрический вибратор, соединенный с концентратором колебаний , рабочие·концы которого поджаты к поверхности диска [21.The closest in technical essence and the achieved effect to the described is a device for transporting a recording medium containing a disk, a shaft mounted in the disk, and a piezoelectric vibrator connected to a vibration concentrator, the working · ends of which are pressed to the surface of the disk [21.

Недостаток устройства - малый коэффициент полезного действия.The disadvantage of this device is its low efficiency.

Цель изобретения - повышение коэффицие-нта полезного действия.The purpose of the invention is to increase the coefficient of performance.

Указанная цель достигается тем, что концентратор колебаний выполнен в виде Камертона, концы которого загнуты, а диск выполнен многослойг ным с кольцевыми износостойкими покрытиями и эластичным внутренним слоем На фиг. 1 изображено предлагаемое устройство, общий вид; на фиг. 2 и.This goal is achieved by the fact that the vibration concentrator is made in the form of a tuning fork, the ends of which are bent, and the disk is multilayered with ring wear-resistant coatings and an elastic inner layer. FIG. 1 shows the proposed device, a General view; in FIG. 2 and.

3 - некотбрые варианты исполнения устройства .3 - some versions of the device.

Устройство содержит вал 1, диск 2 и концентратор 3. колебаний, к основанию которого накладкой 4 приваты 10 пьезоэлементы 5 вибратора.The device comprises a shaft 1, a disk 2 and a hub 3. oscillations, to the base of which by a pad 4 are attached 10 piezoelectric elements 5 of the vibrator.

Концентратор 3. колебаний выполнен в виде камертона, концы которого загнуты, а диск 2 выполнен многослой* ным с кольцевыми износостойкими пок15 рытиями 6.The oscillation concentrator 3. is made in the form of a tuning fork, the ends of which are bent, and the disk 2 is multilayer * with annular wear-resistant coatings 6.

Устройство работает следующим образом.The device operates as follows.

При подаче напряжения .на пьезоэлементы 5 механические колебания 20 последних передаются.на концентратор 3 колебаний. Взаимодействие концов концентратора' 3 с диском 2 приводит последний во вращательное движение, при этом валом 1 осуществляется тран25 спортирование носителя.When voltage is applied. To the piezoelectric elements 5, the mechanical vibrations of the last 20 are transmitted. To the hub 3 vibrations. The interaction of the ends of the concentrator '3 with the disk 2 causes the latter to rotate, while the carrier 1 is transported by the shaft 1.

На фиг. 2 показан вариант устройства, в котором прижим концов концентратора 3 к поверхности диска 30 2 осуществляется упругой пластиной 71 *' ; *In FIG. 2 shows a variant of the device in which the pressure of the ends of the hub 3 to the surface of the disk 30 2 is carried out by an elastic plate 71 * '; *

73715' - ···,.электрический вибратор, соединенный с концентратором колебаний, рабочие концы которого, поджаты к поверхность диска, отличающееся73715 '- ···, an electric vibrator connected to an oscillation concentrator, the working ends of which are pressed against the surface of the disk, characterized

На фиг. 3 показан вариант устройства, в котором изгиб концов камертона осуществляется за счет вставок 8.In FIG. 3 shows a variant of the device in which the bending of the ends of the tuning fork is due to the inserts 8.

Выполнением диска 2 многослойным с рёзиноподобным эластичным внутренним слоем обеспечивается улучшенный прижим концов концентратора 3 к поверхности диска. Коэффициент полезного действия устройства повышается на 30%.The implementation of the disk 2 multilayer with a rubber-like elastic inner layer provides improved clamping of the ends of the hub 3 to the surface of the disk. The efficiency of the device is increased by 30%.

Claims

This invention relates to a magnetic recording technique, in particular, to a carrier-drive device. A known device for transporting a magnetic tape, comprising a shaft with a disk mounted on it, and a resonator connected to piezoplates. The disadvantage of the device is a low coefficient of useful de-action due to losses in the resonator. The closest in technical essence and achievable effect to this is a device for transporting a recording medium containing a disk, a shaft fixed in a disk, and a piezoelectric vibrato connected to a oscillator concentrator, the working ends of which are pressed to the surface of disk 2. Devices — Small Efficiency. The purpose of the invention is to increase the coefficient of this useful effect. This goal is achieved by the fact that the vibration concentrator is made in the form of a tuning fork, the ends of which are bent, and the disk is made multi-layered with annular wear-resistant coatings and an elastic inner layer. FIG. 1 shows the proposed device, a general view; .on FIG. 2 and. 3 - some variants of the device. The device contains VS 1, a disk 2 and a vibration concentrator 3. To the base of which is an overlay 4 with the vibrator piezoelectric elements 5 of the vibrator. Concentrate} 3, the vibrations are made in the form of a tuning fork, the ends of which are bent, and the disk 2 is made multilayer with annular wear-resistant coatings 6. The device works in the following way. When voltage is applied to the piezoelectric elements 5, the mechanical oscillations of the latter are transmitted to the concentrator 3 oscillations. The interaction of the ends of the hub 3 with the disk 2 causes the latter to rotate, while the shaft 1 transports the carrier. FIG. 2 shows a variant of the device in which the clamping of the concentrator 3 against the surface of the disk 2 is carried out by an elastic plate 7 | FIG. 3 shows a variant of the device in which the ends of the tuning fork are bent by inserts 8. By making disk 2 multilayered with a rubber-like elastic inner layer, an improved clamping of the ends of the concentrator 3 against the surface of the disk is provided. The efficiency of the device is increased by 30%. Claims An apparatus for transporting a recording medium comprising a disc, a shaft mounted on a disc, and a piezo -.-. an electric vibrator connected to an oscillation concentrator whose working ends are pressed against the disk surface, characterized in that, in order to increase the efficiency, the vibration concentrator is made in the form of a tuning fork, the ends of which are bent, and the disk is multi-layered with annular wear-resistant coatings and elastic inner layer. Sources of information taken into account in the examination1 USSR author's certificate And 575689, cl. G 11 B 15/40, 1976.

2. USSR author's certificate I 506057, cl. SP 15/28, 1974 (prototype).