RU2394285C1 - Device for destroying information from optical and magneto-optical discs - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: device for destroying information from optical and magneto-optical discs has: a housing, an actuating mechanism, a connection device, a control unit and an optical sensor. The actuating mechanism has drive roller-gear connected to an electric motor, two gear wheels, a rocker arm, two working rollers, a second cutter support with cutters, a table, one or more disc brakes and a power conical spring. The table has a centre hole whose diametre is equal to or greater than outer diametre of a bushing mounted at the bottom of the housing and the centre hole is worn onto the bushing. The power conical spring is attached through its base to the bottom of the housing and coaxially with the axis of the housing. The top end of the said spring rests on the lower surface of the table and this part of the housing is used a system for collecting dust and cuttings. The control unit has a voltage converter, a power switch, a power indicator, a voltage divider, a microcontroller, a recording device, a current sensor and a controlled switch.

EFFECT: possibility of destroying discs with information during storage, more reliable destruction and information classification level, protection from unauthorised access to information and recording of the number of destroyed discs.

3 cl, 3 dwg

Description

The invention relates to computing, and in particular to systems for protecting information contained in optical and magneto-optical disks against unauthorized access.

In specialized institutions, in which information security is of paramount importance, it becomes necessary to have highly reliable devices for destroying information from CDs, CD-R / RW, DVD, DVD ± R / RW, DVD ± RDh. These are state financial institutions, military facilities, commercial, research and many other institutions.

Known desktop device for data destruction on optical disks - "shredder" Plex Eraser PX-OE100E (Plextor Europe BESS @ 00: 02) contains a housing, a receiving tray for disks, a power adapter, a power switch (power switch), a device for cleaning the surface of the disk, electric motor. The known device operates as follows. The disk is placed in the receiving tray, then the toggle switch is turned on, power is supplied to the electric motor and the disk is cleaned of information data. The device stores the storage medium intact. A sign of successful erasure of information from an optical medium is three concentric circles on its surface. Orange in the output tray Caution against accidental erasure not from the information side of the disc. Then the disk can be sent for recycling. The time for erasing information from one DVD ± R / RW media is at least 4 minutes. The time for erasing information from one DVD ± RDh-type medium is at least 8 minutes. Weight 1.7 kg.

The disadvantages of such a device for destroying data on optical disks are:

- the criterion for erasing information "three concentric circles" on the surface of the disk and the need for further disposal of the disk;

- low speed, the time of erasing information from one optical disk for more than 4 minutes;

- the impossibility of destroying information simultaneously from several information carriers, disks are placed by the operator in the device one at a time in sequence;

- limited use, people with visual impairments cannot be used as operators, because the operator needs to distinguish colors, such as "orange";

- there is no control of the electric motor from mechanical blocking;

- low category of secrecy - “fourth”, with which disks are allowed to destroy information from carriers;

- there is no registration of disks with destroyed information.

Also known desktop shredder information on CD (Shred - ET100DX, manufacturer GMP, South Korea).

The information shredder on a CD contains: a housing, a disk feeding device, an engine, a secondary power source, stainless steel point-knurled rollers (protrusions) made of stainless steel, a recognition device (sensor), an automatic switch-on device when feeding a disk, an automatic switch-off device when the engine overheats.

When a disk is fed into the device, the engine is automatically recognized and turned on, which allows the disk to pass through the rollers that damage the upper layer of the disk that carries information. The degree of secrecy is four. Supply voltage 220 V, 50 Hz, power 65 W. The time of information destruction from one CD-type disk is at least 1.0 minutes. Weight 1.2 kg.

The disadvantages of such a device are:

- point damage to the upper layer that carries information;

- the ability to destroy information in turn from only one medium, with the sequential supply of disks by the operator to the device and only after the destruction of information from the previous medium, you can begin to destroy information from the subsequent medium;

- low speed, information destruction time of at least 1.0 minutes;

- high power consumption, for the destruction of information from a disk with a maximum sheet width of 128 mm, at least 65 W / h must be used up;

- low category of secrecy - “fourth”, with which disks are allowed to destroy information from carriers.

The closest analogue of the invention is a portable high-speed apparatus for destroying information recorded on a DVD disc, protected by a US patent for the invention “Method and device for destroying information recorded on a DVD disc” (USA, patent No. 6685119, NKI 241 / 260.1; 241/279, 03.02.2004 )

A device for destroying information from DVD discs contains: a motor for rotating the cutter, a profiled cutter of cylindrical shape, a system for gripping a disc from a disc pack and installing it, a device for pressing a disc against a parallel-rotating cutter to remove a layer of wired information from the outer surface of the disc, a control device a motor with a microswitch, an actuator console, a gripping and installing disk system includes a pressure roller with a spring that presses the inserted disk against the ball bearing , roller brush, dust collection system, chip collector. The cutter connected to the engine rotates at a speed of 10,000 to 30,000 rpm parallel to the disk plane and removes the information layer from it. The operation of information destruction occurs sequentially from each disk separately. The time of information destruction from one medium is at least 10 seconds, the mass of the device is at least 10 kg.

The disadvantages of such a device are:

- sequential destruction of information from each disk;

- after the destruction of information from the media from the disk remains a ring;

- requires additional disposal of the remnants of the disk after the destruction of information;

- there is no registration of the number of destroyed disks;

- there is no recognition of the side of the disk with the printed information, which can lead to an error in the destruction of information;

- low speed, the operation of the destruction of information from one disk is carried out in a time of at least 10 seconds;

- a large mass.

The technical result of the invention is the provision of the process of destroying information disks during storage, increasing the reliability of destruction with greater speed and a greater category of secrecy of information with protection against unauthorized access to it with recording the number of disks being destroyed and reducing the weight of the device (weight not more than 5 kg).

The invention is illustrated by drawings.

Figure 1 presents the electrical block diagram of a device for destroying information from optical and magneto-optical storage media (disks).

Figure 2 presents the axial cross section of the casing of the device for the destruction of information from optical and magneto-optical disks in storage and ready for use.

Figure 3 presents a section along aa of the structure shown in figure 2.

The following notation is introduced in the figures: 1 - connection device (UP); 2 - voltage converter (PN); 3 - power switch (VP); 4 - power indicator (IP); 5 - voltage divider (DN); 6 - microcontroller (MK); 7 - registration device (UR); 8 - managed key (KU); 9 - electric motor (D); 10 - current sensor (DT); 11 - optical sensor (DO); 12 - control unit (BU); 13 - the upper part of the body of the device for the destruction of information (VCHK); 14 - tool holder (RD); 15 - drive roller gear (PSH) with a shaft and pinion gear; 16 - incisors (P); 17 - rocker (Kr); 18 and 19 - the first and second driven gears (RSh1) and (RSh2); 20 - working rollers (PB); 21 - the bottom of the lower part of the body (DNCHK); 22 - spring-loaded knives (N) - brakes; 23 - optical disks (OD); 24 - table (C); 25 - power conical spring (P); 26 - cover of the upper part of the body (KVChK); 27 - the lower part of the corps of information destruction (NCHK); 28 - disk base of the upper part of the body (KO).

The numbers on the block diagram, made in small print, indicate the numbers of their inputs and outputs. In the text of the description of the invention, these numbers are enclosed in parentheses.

The technical result of the invention is achieved due to the fact that the device for destroying information from optical and magneto-optical disks contains: a housing with a control unit 12 located inside it, an actuator, a connection unit UP 1 and an optical sensor DO 11.

The body of the device for the destruction of information consists of the upper 13 and lower 27 parts with circular symmetry.

The control unit 12 contains: voltage converter PN 2, power switch VP 3, power indicator IP 4, voltage divider DN 5, microcontroller MK 6, registration device UR 7, key controlled by KU 8 and current sensor DT 10.

As the connection device UP 1 can be applied packet switch.

As the optical sensor DO 11 can be applied photodiode.

The actuator includes: an electric motor D9, mounted on an electric motor shaft, a drive pinion gear 15 with a shaft and a pinion gear fixed at its upper end, a beam 17 mounted on a bearing mounted on the pinion shaft, two driven gears 18 and 19 located gearing gears 14 with two cutters 16, one or more brakes are engaged with the drive gear of the roller gear, which are fixed to the working rollers 20 mounted in bearings at the edges of the rocker arm, at the other ends of the working rollers 22 drives the table 24 and the power conical spring 25. The gears may be the same or different diameters.

The control unit 12 contains: voltage converter PN 2, power switch VP 3, power indicator IP 4, voltage divider DN 5, microcontroller MK 6, registration device UR 7, key controlled by KU 8 with normally open (NO) contact (1-2) and current sensor DT 10.

The destruction of information occurs simultaneously with the destruction of the disk by cutting off the protective and information-bearing layer from the optical disks 23 with cutters 16 installed in the tool holders 14, kinematically connected via driven gears 18 and 19 to the drive gear of the pinion gear 15 mounted on the shaft of the electric motor 9. Optical feed disks 23 into the cutting zone, located on the table 24, is a power conical spring 25 installed between the table 24 and the bottom 21 of the lower part of the housing 27, cut chips and dust settle in the cavity lower part of the housing 27.

The design of the device for the destruction of information from optical and magneto-optical disks

The device for the destruction of information from optical and magneto-optical disks can be placed in a metal or plastic housing of a cylindrical shape. The housing consists of two easily detachable parts: upper 13 and lower 27 (Fig.2, 3). The outer diameter of the upper part 13 of the casing is equal to the inner diameter of its lower part 27. Moreover, the upper part 13 of the casing is tightly inserted into its lower part 27 to a depth not less than the thickness of the disk pack 23.

The upper part of the housing 13 is made in the form of a round cover 26 with sides and a disk base 28 with sides from below, which have the same diameters and their axes coincide. The cover 26 serves to place a control unit 12, an electric motor 9 and sensors 10 and 11 under it and rests on the edges of the disk base 28.

A sleeve is fixed on the disk base 28 and coaxially with it, the length and inner diameter of which are respectively equal to the length and the outer diameter of the electric motor 9. The cover 26 rests on the upper end face of the sleeve mounted on the disk base 28 and is rigidly fixed to it. A through hole is made in the disk base 28 and coaxially with its axis, the diameter of which is equal to or greater than the diameter of the shaft of the electric motor 9.

The lower part 27 of the casing is made in the form of a round box and serves together with the cavity in the lower part of the disk base 28 to accommodate the destruction mechanism and disks 23 in their cavities. In addition, the lower part 27 of the casing serves as a receiver of chip waste and dust.

The actuator comprises an electric motor 9, a drive roller gear 15, two driven gears 18.19, a rocker arm 17, two working rollers 20, two tool holders 16, a table 24, two brakes 22 of the disks 23 and a power conical spring 25.

The electric motor 9 is fixed in a sleeve mounted on a disk base 28. On the axis of the electric motor 9 a pinion roller 15 is fixedly mounted, consisting of a shaft and a pinion mounted on its upper end. The middle part of the shaft of the pinion gear 15 is fixed in the bearing mounted in the center of the rocker arm 17, and the lower part of the shaft is in the sleeve fixed on the bottom 21 of the lower part 27 of the housing, the outer diameter of the sleeve is equal to or greater than the diameter of the central hole of the disks 23, and the inner is equal to the diameter gear roller shaft 15.

At the ends of the rocker arm 17 and coaxially to the axis of the housing, two working rollers 20 are fixed in bearings. At the upper ends of the rollers 20, driven gears 18, 19 are fixed, and at the lower ends are tool holders 14 with cutters 16 mounted on one end of the tool holders. The gears 18 and 19 are meshed with the drive gear of the roller gear 15. All three gears have the same diameter. Gears 18 and 19, pinion gear pinion gear 15 and rocker arm 17 form a differential mechanism.

Table 24 is used to place on it a package of disks 23 for their supply to the cutting zone. The table has a Central hole, the diameter of which is equal to or greater than the outer diameter of the sleeve mounted on the bottom 21, the height of which is less than the distance from the bottom to the cutters and the hole is dressed on the sleeve. The diameter of the table is less than the diameters of the disks 23. In addition, the table has a vertical movement limiter, which is the optical sensor 11.

A power conical spring 25 is fixed on the bottom 21 of the lower part 27 of the housing and coaxially with its axis. The upper end of the spring abuts against the lower surface of the table 24. The spring 25 feeds the table with discs 23 to the cutting area of the actuator.

On the sides of the lower part 29 of the body at the bottom 21 and opposite each other are fixed one or more brakes of the disks 23, which are made in the form of spring-loaded knives 22. The knives abut against the outer edges of the disks 23. The knives 22 impede the rotation of the disks during their cutting. In the lower part 27 of the housing at the height of the disk pack, an optical sensor OD 11 is installed (Fig. 3).

Electrical connections of the device (figure 1)

The connection device UP 1, voltage converter PN 2 and switch VP 3 are connected in series. The output of VP 3 is connected to the input (1) of the power indicator IP 4 and the input (1) of the voltage divider DN 5. The second output (3) of the DN 5 is connected to the input (1) of the power supply of the MK 6 microcontroller, and the first output (2) of the power supply of DN 5 connected to the input (1) of the power supply of the key of the control unit 8. The output (2) of the supply unit 8 is connected to the input (1) of the current sensor DT 10, and the input (3) of the signal unit 8 is connected to the output (4) of the signal MK 6. Output (3) the power supply DT 10 is connected to the input (1) of the power supply of the motor D9, and the output (2) of the signal DT 10 is connected to the input (3) of the signal MK 6. The output (5) of the signal MK 6 is connected to the input dy (1) SD signal registration unit 7, and the output (6) Power IC 6 is connected to the input (1) to an optical power sensor 11, the output (2) a signal coupled to an input (2) IC 6 signal.

The terminal (3) of the total zero of the unitary enterprise 1 is connected to the terminal (5) of the total zero of the control unit 12 and the terminal (2) of the total zero of the motor D9.

The operation of the device (figures 1-3)

Before the beginning of the destruction of disks, the lower 27 and upper 13 parts of the casing of the device for destroying information with the devices attached to them are disconnected. Remove the table 24 from the sleeve mounted on the bottom 21. On the table place a package of optical disks OD 23, put a hole on the table on the sleeve, compressing the spring P 25. The table latches 24 pass into the holes of the bottom 21 and fix the table with the package.

The latch is a roller, at one end of which a circular groove is made. The roller is rigidly fixed to the table. An opening is made in the bottom 21 of the lower part 27 of the housing coaxially to the roller. When the spring is compressed, the groove on the roller goes out. A bracket is inserted into the groove that secures the table. After that, the upper part 13 of the housing is inserted into the lower part 27 and fasten the parts of the housing with a bayonet lock. Detach the table lock 24 by removing the staples from the roller with a groove.

When the motor D9 is turned on, tool holders 14 with cutters 16 begin to rotate. The cutters on the tool holders are installed in excess of the difference between the outer radius of the disk 23 and the radius of the hole in the disk, so the disk is completely destroyed. After the destruction of the next disk 23, the spring 25 moves the table 24 up and feeds the next disk into the cutting zone.

The control unit 12 controls the on and off of the D9 electric motor; for this purpose, a single-phase alternating voltage of 220 V, 50 Hz is supplied to the unit 1 through an industrial power supply socket, which is converted in the PN 2 converter to a DC voltage of 27 ± 0.5 V. The VP 3 switch is turned on. A power supply of 27 ± 0.5 V is supplied through the VP 3 to the IP 4, DN 5, KU 8 units of the BU 12 block. The MK 6 microcontroller controls the operation of mechanical devices and electronic components of the recorded information destruction device. The microcontroller MK 6 is powered by a voltage of 5 V DC, which comes from the output (3) of the power supply of the DN 5 divider, in the presence of optical disks OD 23 and a signal from the sensor DO 11, it supplies control signals from the output (4) of the signal input (3) key KU 8, which closes the NO contact (1-2), which provides a supply voltage of 27 V from the output (2) of the power key KU 8 to the input (1) of the power supply of the DT 10. Through the sensor DT 10, the power supply is 27 V from the input ( 1) power to the output (3) of the power is supplied to the input (1) of the power supply of the D9 electric motor. At the same time, from the output (2) of the DT 10 signal sensor, a digital signal is received at the input (3) of the MK 6 microcontroller. The DT 10 sensor converts the current value of the current flowing through it into the digital form necessary for the MK 6 analysis of the operation of the D9 electric motor, to exclude its overload and prevent mechanical blocking. The signal about the state of the D9 motor from the output (2) of the DT 10 sensor is fed to the input (3) of the signal MK 6. In case of a violation of the operating mode of the D9 motor from the output (4) of the signal MK 6, a control signal is input to the input (3) of the signal key KU 8 , which opens the contact (1-2), the power supply to the sensor DT 10 and the motor D9 is not supplied. In normal mode, the motor D9 rotates the pinion gear 15 at a speed of 3000 - 10000 rpm (figure 2, 3). Together with the pinion gear 15 rotate, engaged with it, driven gears RSh 18, RSh 19 and rocker Kr 17. Spring P 25 is located between table C 24 with optical disks OD 23 and bottom 21 in a compressed state and seek to unclench and move table with discs in the cutting zone. The driven gears RSh 18 and RSh2, mounted on the rocker arm K 17, rotate counterclockwise and, accordingly, the toolholders PP 14 with cutters P 16 and the rocker arm K 17 also rotate counterclockwise. Cutters P 16 cut the surface of the disks 23 in the recorded information area, cutting off the protective coating from each disk, the information layer and destroying the disk itself. The thickness of the disks OD 23 1-2 mm. When processing a package of disks placed on the C 24 table, there remains waste disposal: dust and chips. Dust and chips during the processing of disks fall into the waste receiver, which is an internal cavity of the lower part 27 of the housing.

With this design of the actuator for half a turn of the rocker 17 cutters P 16 destroy the entire disk. After the destruction of one disk from the MK 6 microcontroller, output (5) receives a signal at the input (1) of the UR 7 registration device, where the destroyed disk is registered, and the process of disk destruction continues, because the table C 24, with the OD 23 disks placed on it, the spring P 25 moves up.

Due to this treatment, the cutting speed and cleanliness are increased. The sensor DO 11 is placed on the wall of the lower part 27 of the housing (figure 3). After the destruction of each drive OD 23 from the output (2) of the signal sensor DO 11 to the input (2) of the signal microcontroller MK 6 sends a signal that, after being formed, is fed into the registration signal to the input (1) of the signal device UR 7. After the destruction of the last disk placed on the table C 24, from the sensor TO 11 a control signal is supplied to the input (2) of the MK 6 microcontroller, which in turn from the output (4) of the signal supplies a control signal to the input (3) of the signal key KU 8. This signal opens the contacts (1 -2) key KU 8. Current input (1) power sensor DT 10 and, accordingly, the input (1) of the power supply of the motor D9 is not received. The work on 100% destruction of information from optical and magneto-optical disks and the disks themselves is completed. The VP 3 switch is turned off by the operator. The device destroys ten disks in 20 seconds.

Destruction device implementation example

The control unit 12 of the device is made in accordance with the block diagram of figure 1, and the actuator in accordance with the sketches of figure 2 and 3.

As a device for connecting UP 1, a packet switch of the ELBF101-3 / 25S25 type is used.

The voltage transformer PN 2 is made using a transformer of the TTP-15 type.

VP 3 power switch is made on the VTB24 microcircuit.

The power indicator IP 4 is made on an AL307K LED.

The voltage divider DN 5 is made on the resistor C-33.

The microcontroller MK 6 is made on a chip type KR581IK1.

The registration device UR 7 is made on a monochrome liquid crystal display IZhTS13-8 / 7.

The key controlled by KU 8 is made on a relay of the RES-30 type.

As a D9 electric motor, a DPM type electric motor is used.

The current sensor DT 10 is made on a low current sensor type DMT-400.

The optical sensor DO 11 is made on photodiodes type VRX43-3.

The control unit BU 12 is made on a 1.2 mm thick fiberglass plate on which electronic devices are placed: PN 2, VP 3, IP 4, DN 5, MK 6, UR 7, KU 8iDT 10.

The body of the information destruction device is made of alloy D 16 in the form of a pipe segment with a diameter of 140 mm, a wall thickness of 1 mm. In the case on the outside there are holes for installing button locks.

The PSh 15 pinion gear is made of ST3 steel.

Driven gears РШ1 18 and РШ2 19 are made of steel ST3.

OD 23 optical disks that can be destroyed: CD, CD-R / RW, DVD, DVD ± R / RW, DVD ± RDh.

The RD 14 tool holders are made of ST3 steel in the form of rectangular bars with overall dimensions: 32 × 10 × 5 mm.

Cutters P 16 are made of steel grade P9.

Table C 24 is made of plastic of the brand AG-4C in the form of a disk with a diameter of 120 mm, a wall thickness of 1 mm with a hole in the center of 15 mm.

The conical spring P 25 is made of steel P1, with a base diameter of 100 mm and an internal coil of 50 mm.

The cover of the upper part of the housing 26 is made of carbon fiber material in the form of an inverted bowl with windows for controlling the VP 3 power switch and monitoring the indicators IP 4 and UR 7. Cover 26 has an outlet for connecting UP 1.

The cover of the waste receptacle is made in the form of a bowl of carbon fiber material.

Rocker Kr 17 is made in the form of a rectangular bar with dimensions 60 × 20 × 20 mm with three holes with a diameter of 15 mm, rocker material is steel ST3.

Knives 22 are made of steel CT45 in the form of a bar of a triangular shape with dimensions of 20 × 8 mm.

The waste (dust and shavings) receiver is made of AG-4C plastic in the form of a bowl, the inner diameter of which is equal to the inner diameter of the lower part 27 of the housing.

The information destruction device provides, if necessary, the destruction of information disks during storage, increases the reliability of destruction and the category of information secrecy, protects against unauthorized access to it and registers the number of destroyed disks. The device destroys ten disks in 20 seconds, its weight is 4.5 kg.

Features of the invention

The body of the device for destroying information, the connecting device 1, the optical sensor 11, the second tool holder 14 with cutters 16, a drive gear wheel 15 with a shaft and a pinion gear mounted on the upper end of the shaft mounted on the shaft of the electric motor 9, the beam 17 mounted on the bearing, mounted on the shaft of the pinion shaft, two driven gears 18 and 19, meshed with the pinion pinion of the pinion shaft, which are fixed to the working rollers 20 mounted in bearings at the ends of the rocker arm, one or more brakes 22 23 and the power spring 25 is conical.

The control unit 12 contains a voltage converter 2, a power switch 3, a power indicator 4, a voltage divider 5, a microcontroller 6, a registration device 7, a key controlled 8 and a current sensor 10.

The connection device 1, the voltage converter 2 and the power switch 3 are connected in series, the output of the power switch is connected to the input of the power indicator 4 and the input of the voltage divider 5, the second output of which is connected to the power input of the microcontroller 6, and the first output is connected to the power input of the key controlled 8, the output of which is connected to the power input of the current sensor 10, and the signal input is connected to the signal output of the microcontroller 6.

The power output of the current sensor 10 is connected to the power input of the electric motor 9, and the signal output of the current sensor is connected to the signal input of the microcontroller 6, the signal output of which is connected to the signal input of the registration device 7, the power output of the microcontroller is connected to the power input of the optical sensor 11, the signal output of which is connected with the signal input of the microcontroller.

The common zero terminal of the power device 1 is connected to the common zero terminal of the control unit 12 and the common zero terminal of the motor 9.

The body of the information destruction device is made of two parts with circular generators: upper 13 and lower 27, the outer diameter of the upper part is equal to the inner diameter of the lower and the upper part is tightly inserted into the lower one to a depth of not less than the thickness of the disk pack to be destroyed. The upper part of the body is made in the form of a round cover 26 with sides, under which there is a control unit 12, a power device 1 and an electric motor 9, and a disk base 28 with sides on the bottom. The disk base 28 and the cover 26 have the same outer diameters and are mounted on one another and their axes coincide.

On the base 28 of the upper part of the housing and coaxially fixed to the sleeve, in which the motor 9 is installed, the length and inner diameter of the sleeve, respectively, are equal to the length and outer diameter of the motor, in the base 28 and coaxial to its axis, a through hole is made, the diameter of which is equal to or greater than the diameter of the shaft electric motor.

The actuator comprises a drive roller gear 15 connected to an electric motor 9, two driven gears 18 and 19, a beam 17 with a bearing, two working rollers 20 with bearings, a second tool holder 14 with cutters 16, a table 24, one or more brakes 22 of the disks 23 and power conical spring 25.

The middle part of the shaft of the pinion gear 15 is fixed in a bearing mounted in the center of the rocker arm 17, and the lower part of the shaft is in the sleeve fixed on the bottom 21 of the lower part 27 of the housing, the outer diameter of the sleeve is equal to or less than the diameter of the central hole of the disks, and the inner is equal to the diameter of the shaft gear roller.

Two working rollers 20 are fixed in bearings at the ends of the rocker arm 17 and coaxially to the axis of the housing, driven gears 18 and 19 are fixed at the upper ends of the rollers, and at the lower tool holders 14 with cutters 16 that are installed at the ends of the tool holders.

The driven gears 18 and 19 are meshed with the drive gear of the roller gear 15, the gears have the same or different diameters. Gears and rocker 17 form a differential mechanism.

Table 24 has a Central hole, the diameter of which is equal to or greater than the outer diameter of the sleeve, mounted on the bottom 21 of the lower part of the housing 27, the height of which is less than the distance from the bottom to the cutters, and the central hole is dressed on the sleeve, the diameter of the table is smaller than the diameters of the disks, the table has a vertical limiter displacement.

On the bottom 21 of the lower part 27 of the housing and coaxially with its axis, the base is fixed to a compression force conical spring 25, working on compression, the upper end of which abuts against the lower surface of the table 24.

An optical sensor 11 and one or more brakes 22 of the disks 23, made in the form of spring-loaded knives, which abut against the outer edges of the disks, are fixed on the sides of the lower part 27 of the housing at the height of the disk pack.

As the system for collecting dust and chips, the lower part of the housing 27 is used.

Claims (3)

1. A device for destroying information from optical and magneto-optical disks, comprising: a control unit, an electric motor and an actuator, which include: a tool holder with a cutter kinematically connected to the electric motor, and a dust and chip collection system, characterized in that it includes: information destruction device case, connection device, optical sensor, second tool post with cutters, drive roller-gear fixed to the motor shaft with the shaft and pinion gear, fixed at the upper end of the shaft, a rocker mounted on a bearing fixed to the shaft of the pinion shaft, two driven gears meshed with the pinion of the pinion shaft, which are fixed to the working rollers installed in the bearings at the ends of the beam, one or more brakes drives and a power conical spring, the control unit comprising a voltage converter, a power switch, a power indicator, a voltage divider, a microcontroller, a recording device, a current sensor and a key controlled, in addition, The connection device, the voltage converter and the power switch are connected in series, the output of the power switch is connected to the input of the power indicator and the input of the voltage divider, the second output of which is connected to the power input of the microcontroller, the first output is connected to the power input of the controlled key, the output of which is connected to the power sensor current input and the signal input is connected to the signal output of the microcontroller, and the power sensor current output is connected to the motor power input, and the signal output is yes a current sensor is connected to the signal input of the microcontroller, the signal output of which is connected to the signal input of the recording device, the power output of the microcontroller is connected to the power input of the optical sensor, the signal output of which is connected to the signal input of the microcontroller, in addition, the common zero terminal of the power device is connected to the common zero terminal the control unit and the common zero terminal of the electric motor, and the body of the device for destroying information is made of two parts with circular generators: and lower, the outer diameter of the upper part is equal to the inner diameter of the lower part, the upper part of the housing is tightly inserted into the lower, in addition, the upper part of the housing is made in the form of a round cover with sides, under which there is a control unit, a power device and an electric motor, and a disk base with sides on the bottom, the cover and base are mounted on top of one another, have the same external diameters, and on the base of the upper part of the body and coaxially fixed to it is a sleeve in which the electric motor is installed, in the base and coax but its axis has a through hole, the diameter of which is equal to or greater than the diameter of the motor shaft, in addition, the actuator includes a drive roller gear connected to an electric motor, two driven gears, a beam, two working rollers, a second tool holder with cutters, a table, one or more than disc brakes and a power conical spring, the middle part of the shaft of the pinion gear shaft mounted in the bearing mounted in the center of the rocker arm, and the lower part of the shaft located in the sleeve mounted on the bottom of the lower part pusa, the outer diameter of the sleeve is equal to or greater than the diameter of the central hole of the disks, and the inner is equal to the diameter of the shaft of the pinion roller, in addition, two working rollers are fixed in bearings at the ends of the beam and coaxially to the axis of the housing, driven gears are fixed at the upper ends of the rollers, and at the lower tool holders with cutters that are installed at the ends of tool holders, and the driven gears are engaged with the drive gear of the pinion gear, the gears and rocker form a differential mechanism, in addition, the table has a center an oval hole, the diameter of which is equal to or greater than the outer diameter of the sleeve mounted on the bottom of the lower part, the height of which is less than the distance from the bottom to the cutters, and is dressed on the sleeve with the central hole, the diameter of the table is smaller than the diameters of the disks, moreover, on the bottom of the lower part of the body and is aligned a power conical spring is fixed on the base, the upper end of which rests against the lower surface of the table, in addition, an optical sensor and one or more disk brakes are fixed on the sides of the lower part of the case at the height of the disk pack. 2. The device for destroying information from optical and magneto-optical disks according to claim 1, characterized in that the lower part of the housing is used as a dust and chip collection system. 3. The device for destroying information from optical and magneto-optical disks according to claim 1, characterized in that the brakes of the disks are made in the form of spring-loaded knives that rest on the outer edges of the disks.

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