CS237294B1 - Reversing clutch - Google Patents

Abstract

The invention relates to a reversing clutch which comprises two clutch elements (5, 6) which are mounted on a shaft (7) and between which a clutch plate (9) axially adjustable on the shaft (7) is mounted. The clutch plate (9) is manufactured from a magnetically conductive material, the front faces of the clutch elements (5, 6) being formed by magnetically non-conductive friction rings which are arranged between the pole shoes of a magnetoelectric circuit. …<IMAGE>…

Description

BACKGROUND OF THE INVENTION The invention relates to a reversing clutch comprising two clutch bodies mounted on a common shaft, between which a clutch disc is axially adjustable on the shaft.

Known reversing couplings hitherto are arranged mechanically. Both parts of the clutch are actuated by a single clamping sleeve and the shifting of the sleeve over the hub causes the adjustment of the inner levers acting on the set of inner and outer fins, thereby establishing a connection between the hub and the housing. Clutch is particularly suitable for manual gearboxes with mechanical linkage to the closing sleeve.

Electrically actuated couplings are not used in a compact dual clutch design. It is known to use only two solenoid couplings mounted on a common shaft or connected by mechanical rotary gears.

The disadvantage of the above reversing clutches is that the mechanically actuated reversing clutch is intended mainly for manual shifting. Clutch response Slow due to high dead time during switching. Mechanical coupling requires frequent adjustment of the couplings.

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When creating a reversing clutch using a pair of electromagnetic clutches, the disadvantage is the difficulty of synchronization without the additional control device and the need to permanently supply the clutch solenoids during their operation. In the case of a control fault - both - can be switched on - both at the same time - at reversing connection. . of the couplings, thereby creating a hávááii mechanism.

The above-mentioned disadvantages are eliminated by the clutch according to the digest, the essence of which is that. - the clutch disc is. Constructed of magnetically conductive material, whereby the faces of the coupling bodies are formed by meapintically non-conductive friction rings, which are interposed between the pole pieces of the electronic echo-electric circuit.

The advantage of the reversing clutch according to the invention is the very fast adjustment time of the clutch disc and, in addition, maintaining the last state change without supplying the supply current. - Depending on this characteristic, - the clutch can be pulsed. The clutch does not have a neutral position and is easy to adjust. .

The reverse coupling according to the invention is schematically shown in the accompanying drawings, in which Fig. 1 is a cross-section of the reverse coupling and Fig. 2 shows a cross-section of the reverse coupling with the lamella in the opposite position.

In the embodiment of the reversible clutch according to the invention, the first drive wheel 1 and the second drive wheel 2 are connected to a drive (not shown). The first driven clutch gear 2 is fixedly coupled to the first clutch body 2 and the second driven clutch gear 2 is fixedly coupled to the second clutch body 2. The first and second clutch bodies 6 are rotatably mounted on the shaft 6, for example by means of rolling bearings 8. Between the first and second clutch bodies 6, the clutch plate 6 is axially displaceably mounted and secured against rotation. .

The clutch body 2 is formed by a flange portion 41. 61 and the cylindrical portion 62. -62. On the flange portion 51, 61 of the clutch body 64, on the other hand, the cylindrical portion 52, 62 of the clutch body 34 is mounted with a permissive magnet -10, which contacts one of its poles on the flange 46, 61 of the clutch body 32. . The permeable magnet 10 has an annular shape and between its inner diameter and the outer diameter of the cylindrical portion -22. 62 of the clutch body 6, a gap is formed which, in the exemplary embodiment, is air.

-3 237 294 ile can be filled with Jinjfa with a magnetically non-conductive material. Clutch t ^El Ace 2 »6 forms jeden'pólový · permanent attachment nagnetu 10, 11. The coupling body 2» t spojková'lamela £ 6 are formed of a conductive maginticky maateiálu.

At the opposite pole ermannntní ^{p h} o · magnet 10, 11 ^d axis ^DA řírubov ^part 121, 122 of the outer ring 12, 13 which is formed of a magnetically conductive maateiálu, and forming a second pole piece of the permanent magnet 10 - 11, Vnnjší the ring 12, 13 is further formed by a cylindrical portion 122, 13L between the free end of the cylindrical portion 122. 132 of the outer ring 12, 13 and the free end of the cylindrical portion 52. 62 spojkovehotělesa 5 » '6 is fixedly mounted maginticky nonconductive BRZ ^d oic lining 14 ² 15. ^p Locha front brake pads 14, 15 form together with · the front face of the cylindrical portion 52, 62' of the connector - · 6 and the end surface of the cylindrical portion 122, 132. ring 12 ,. 13 · braking surface 22. 23. In the space between the outer. the ring 12, 13, 52, 62 of the spoke bar, 6a, and the liner 14, 15 accommodates the solenoid coil 016, 17.

An air gap 123, 133 is formed between the inner diameter of the flange portion 121, 131 of the outer ring 12, 13 'and the inner diameter of the cylindrical portion 52 * 62 of the clutch body 26, which may be filled with another non-conductive material.

An electrically conductive insulating layer 13, 12 is provided on the outer periphery of the ring 12, 13, on which the two slip rings 201, 202, 211, 212 are provided for feeding the coil 16, 17 of the magnet.

Clutch disc 2 is not in neutral position. That is, it always touches one of the braking surfaces 22. 23. When the clutch disc 2 of the surface 23 of the second clutch body 6 touches, there is an air gap 24 between the braking surface 22 of the first clutch body 2 and the clutch disc 2 '. if the clutch plate 2 of the braking surface 22 is used. between the braking surface 23 of the second clutch body 6 and the clutch plate 2, an air gap 25 '. The air gaps 24, 25 between the clutch plate 2 and the braking surfaces 22, 23 are larger than the air spacers 123, 133 between ^FIG. In the case of a gap 123, the nozzles are attracted to one permanent mgnet.

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13? It is filled with magnetically non-conductive material, its maapneic resistance must be less than the maapneic resistance of the air gap 24, 25 between the clutch plates 2 and the brake pads 22, 21 and 22 of the drive shaft 1 and the rough drive shaft 2 is connected to the low. ^á zorn ^e nmj ^ρo honnm, 'and both - rotate in the same direction. The first driven clutch 6 rotates - in the opposite direction to the rough drive clutch 4, and, consequently, the first clutch body 6, together with all the parts assembled therein, rotate in the opposite direction to the rough clutch body 6. which can also withstand rotational movements. all sosččssi ..

Dooýkááli the two clutch disc braking surfaces 22 of the first clutch ^H o ^- T ^e £ forest, jenahHdel. In other words, the drive ømmnnt from the first drive wheel -2 and the shaft - - 2 - rotate in the same direction as the first driven person £. Ma ^ netcký a circumference of the permanent magnets 10 of the first - - clutch body - £ is s.zavírá - one Perman ^^^ about magpnets 10 via the first conductive mjpinticky - clutch ^é £ TDES, spojkovos lamels 2 and the ring 12 on pole ^d rshý permanentníhc maggiets 10th Maapn ^ t.cký permanent circuit mgnets ^- 11 ^{- d} -h ^ ^é clutch him about TDES. 6 is unity szavír ^{plated pole} with permanent - magnet 11 via - maggnticky conductive .drshé clutch body 6 vzdschovos aezers phírsbovos 133 and part 131 of the ring 13 on the - ^d rshý ^following L ^{p h} o ermannntní Magnets ^- ^ 1. Given ^- ktoms, ^Z e vzischovS The gap 'between the brake plochos 25 - 23 drshého clutch; body 6 and spojkovos lamelos £ is greater than vzdschové - gap 133 ^- - between the ^Po hunting ^- rástavci ^ rmanentního maapets Ц »is a power of ^ EQS permannntního rnjpiets Ц DRS ^hé him with ^ jkov ^ o TDES 6 to - spojkovos ^- lamels ^£. It is small and is squeezed by the permanent magnets 10 of the first clutch body 8, the pole pieces of which touch the clutch disc.

As a result of the electrical impslss of the direct voltage voltage of the tangent polarity at the pickups 211, 212 of the rough clutch body 6, and thus into the coil 17, the narcotic electrodes, adds the maapintic toks of the electromagnet and the permanent mmgpiets. 11. The force effect of the maapintic toks in the air gap 25 between the throat ^p lochos 23 and the lamellae j is increased by the wildebeest.

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237 294 the permanent magnet effect 10 of the first clutch body 2; the clutch disc is attracted to the braking surface 23 of the second clutch body. As a result, the direction of rotation of the shaft 7 is reversed, at the end of the electrical pulse duration in the solenoid coil 17, the permanent magnet magnetic circuit 11 of the second clutch body 6 closes 2 of one pole of the permanent magnet 11 over the other clutch body. the permanent magnet 11 and thereby holds the clutch disc 2 в ^contacting braking surface 23 of the second splice member 6. the magnetic circuit of the permanent magnet 10 of the first clutch body is closed via the first clutch Tele air gap 123 between the pole pieces of a permanent magnet 10 and the flange portion 121 of ring 12 at second pole of the permanent magnets 10 air gap 23 between the first braking surface 22 of the clutch body 2 ® clutch disc d ^e 2 larger ones than the air gap 123 between the pole pieces of a permanent magnet 10 and therefore the force effect of the permanent magnet 10 of the first sp The coupling body 2 on the small clutch plate 2 is overcome by the force effect of the permanent magnet 11 of the second clutch body 6, which the clutch plate 2 touches, so that the clutch plate 2 remains in position.

To move the clutch disc 2 back к braking surface 22 of the first clutch body 2 ^e 0 must bring the electric pulse of DC voltage to a polarity slip rings 201, 202 on the first clutch body 2 »® to the solenoid coil 16 of the first clutch body 2 ·

Clutch Housings 2 ». They can rotate at different speeds, also in the storage direction.

Claims (3)

A reversing clutch comprising two clutch bodies mounted on a common shaft, between which a clutch disc is axially displaceably mounted on the shaft, characterized in that the clutch disc (9) is made of a magnetically conductive material, wherein the faces of the clutch bodies (5, 6) ) are formed by magnetically non-conductive friction rings placed between the pole pieces of the magnetoelectric circuit. Reversible coupling according to claim 1, characterized in that the magnetoelectric circuit is formed by a permanent magnet (10, 11) between whose pole pieces a solenoid coil (16, 17) is arranged. Reversible coupling according to Claims 1 and 2, characterized in that a magnetic resistance of less than the magnetic resistance of the air gap (24, 25) between the magnetically conductive clutch plate (10, 11) is inserted between the pole pieces of the permanent magnet (10, 11). 9) »the braking surface (22, 23) of the clutch body (5, 6). Reversible coupling according to claim 3, characterized in that the magnetic resistance between the pole pieces of the permanent magnet (10, 11) is formed by an air gap (123, 133), wherein the width of the air gap (123, 133) between the pole pieces is less than the width of the air gap (24, 25) between the clutch plate (9) and the braking surface (22, 23).