The magnetic clutch of the vehicle

 

(57) Abstract:

The invention relates to the field location and installation of the transmission of motor vehicles, in particular to a device of the clutch. The magnetic clutch of the vehicle contains two independently rotating rotor connected respectively with the master and the slave transmission elements. One rotor is made in the form of a multi-pole inductor, and the other equipped with the inductive element of a ferromagnetic material. The coupling is provided with windings, the coils are placed on the inductive element in the grooves, and the conclusions of the windings are electrically connected with an electric motor, mechanically connected with the driven element of the transmission. Technical result achieved is the reduction of mechanical losses in the slippage of the elements of the coupling in the transmission of torque and the possibility of reverse. 1 C.p. f-crystals, 2 Il.

The invention relates to the field location and installation of the transmission of motor vehicles, in particular to a device of the clutch.

Known electromagnetic reversing clutch, containing mounted on the common axis of the two magnetic circuit with coil excitation and placed between the anchor with f is t his the friction surfaces of the additional coils, one ends of which are connected to the common point of the windings of the magnetic circuit, and the other through the isolation diodes respectively to their conclusions (See. USSR author's certificate N 420827, MKI F 16 D 27/06, publ. 25.03.74. Bull. N 11).

The obstacles to achieve the desired technical result when using the known device are large mechanical losses at the point of activation due to slippage of the elements of the clutch under load, which limits the possibility of gradual change speed of the driven shaft at a constant speed of rotation of the drive shaft.

Known coupling with electric control containing coupling with packages drives installed with clearances with the formation of the cavity for the dispersion medium in the form of electrorheological suspensions, the high voltage source and the high-voltage generator of rectangular pulses of variable duty cycle, the input of which is connected to the output voltage of the voltage source and the output to the packages of disks of the coupling (See. USSR author's certificate N 1581917, MKI F 16 D 27/00. Publ. 30.07.90. Bull. N 28).

The obstacles to achieve the desired technical result of using a well known mouth is Ivanyi elements of the coupling in the transmission of torque and the inability to reverse the rotation speed of the driven shaft in a given direction of rotation of the drive shaft.

The closest device of the same purpose to the declared object on the totality of symptoms is the magnetic clutch of the vehicle containing two independently rotating rotor connected respectively with the master and the slave transmission elements, with one rotor is constructed in the form of a multi-pole inductor, and the other equipped with the inductive element of a ferromagnetic material (See. USSR author's certificate N 546295, MKI F 16 D 27/02. Publ. 05.02.77. Bull. N 5).

The obstacles to achieve the desired technical result when using the known devices are relatively large mechanical losses at higher loads due to the occurrence of slippage of the coupling elements and the emergence of this eddy currents, resulting in a significant part of the mechanical energy is converted into heat. In addition, in this device there is no possibility of reverse rotation of the driven shaft in a given direction of rotation of the drive shaft.

The invention consists in the following.

Mechanical losses are known clutches mainly occur in the slip elements in the transmission of torque is Oresta of the coupling is lost as heat. This reduces the efficiency of the vehicle and limits the possibility of smooth speed change driven half-coupling. Vehicles must also have the ability to reverse the driven element relative to the driven elements and it is desirable to have a magnetic coupling, as in this case, simplified transmission and increases the reliability of the vehicle.

The technical result that can be obtained by carrying out the invention consists in the reduction of mechanical losses in the slippage of the elements of the coupling in the transmission of torque and the possibility of reverse.

This technical result in the implementation of the invention is achieved in that in the known device containing two independently rotating rotor connected respectively with the master and the slave transmission elements, with one rotor is constructed in the form of a multi-pole inductor, and the other equipped with the inductive element of a ferromagnetic material, introduced coil windings are placed on the inductive element, and the conclusions are electrically connected with the motor, the rotor of which is mechanically connected to a driven element of the transmission.

Accommodation on inductive element of the windings and their electrical connection with the motor, the rotor of which is mechanically connected to a driven element of the transmission can virtually eliminate mechanical losses of the magnetic clutch of the vehicle at different speeds of rotation of the coupling in the transmission of torque, because the energy released when the slippage of the coupling in this case is disposed of by an electric motor and is manifested in the form of increase in a twisting moment of the driven element of the transmission. This can easily be ensured the reverse coupling associated with the driven element of the transmission by changing the direction of magnetic flux in the motor with a suitable choice of the magnitude of the magnetic flux in the inductor magnetic clutch.

Execute independently rotating rotor connected to the driven element of the transmission, in the form of a piece with the rotor of the electric motor reduces size and weight and to increase the reliability of the vehicle's clutch.

Conducted by the applicant's analysis of the prior art, including searching by the patent and scientific and technical sources is to provide, that the applicant has not found similar, characterized by signs, identical to all the essential features of the claimed invention, as defined from the list of identified unique prototype, as the most similar set of features analogue, has identified a set of essential towards perceived by the applicant to the technical result of the distinctive features in the claimed object set forth in the claims.

Therefore, the claimed invention meets the requirement of "novelty" by applicable law.

To verify compliance of the claimed invention to the requirements of inventive step, the applicant conducted an additional search of the known solutions in order to identify characteristics that match the distinctive features of the prototype of the characteristics of the claimed invention, the results of which show that the claimed invention is not necessary for the expert in the obvious way from the prior art because the prior art defined by the applicant, not identified impact provided the essential features of the claimed invention, the conversion to the achievement of the technical result, in particular, stated izobretatel, to achieve a technical result, in respect of which it is the effect of such additions; the replacement of any part of the other known means known part, to achieve a technical result, in respect of which it is the effect of such a change; the exclusion of any part of the funds while the exclusion of its functions and the achievement of a result of such exclusion; increasing the number of identical elements to enhance the technical result due to the presence in the vehicle of such elements; perform asset or part of a known material to achieve a technical result due to the known properties of the material; creating means, consisting of known parts, the choice of which and the connection between them is made on the basis of known rules, and achievable technical result is due only to the known properties of the parts of this object and the relationships between them.

Therefore, the claimed invention meets the requirement of "inventive step" by applicable law.

The drawing shows the scheme of the requested ostreich ties magnetic clutch.

Information confirming the possibility of carrying out the invention are as follows.

Magnetic coupling (see Fig. 1) includes a housing 1 with the end cap 2, in which the bearing 3 has a drive shaft 4 and output shaft 5. Drive shaft 4 is rigidly fixed to the leading rotor 6 with multi-pole inductor 7, having a field winding 8. On the driven shaft 5 is rigidly fixed to a driven rotor 9 with the inductive element 10, the grooves 11 which is placed coils of the windings 12, the conclusions of which are electrically connected through the rectifier 13 and the switch 14 with an electric motor comprising the armature 15 with the windings 16 and pole pieces 17 with excitation windings 18. On the dielectric sleeve 19 mounted on the control shaft 4, are set to United with the conclusions of the field windings 8 of the contact rings 20 and 21 connected to the brushes 22 and 23 installed in the brush holder 24. On the dielectric sleeve 25 fixed on the driven shaft 5, is fixed connected to the outputs of the rectifier 13 and the slip rings 25 and 26 connected to the brushes 28 and 29, mounted in the brush holder 30. The switch 14 is installed collector plates 31 and 32 connected to the brushes 33 and 34 mounted in fixed on the end cap ellite diodes 36 of the rectifier 13, the output of which through the brush-contact nodes 26, 28 and 27, 29 connected to the battery 37 through the key element 38. Winding 8 multi-pole inductor is connected through a brush-contact sites 20, 23 and 21, 22 to the first voltage regulator 39. Winding 18 of the motor via a polarity reversing switch 40 is connected to the second voltage regulator 41. Conclusions winding 16 of the motor armature is connected to the terminals of the rectifier 13 through the corresponding n-p-n transistors 42 and p-n-p transistors 43, the base of which is connected respectively to the secondary power supply sources 44 and 45 through the brush-collector nodes 31, 34 and 32, 33. The power pins of the above devices 39, 41, 44 and 45 are connected with the terminals of the battery 37.

Magnetic clutch operates as follows.

During the rotation of the driving shaft 4, mounted on bearings 3 inside the housing 1 with the end cap 2, in case of rupture of the coupling inductor 7 rismanchian (powered-down winding 8) and torque on the driven shaft 5 is passed (torque transmitted by the bearings can be neglected). If you want to transmit torque, the inductive element 10 is magnetized by the coil 7 and perelement 10, induced voltage, which is rectified by rectifier 13 and through the switch 14 is supplied to the coil 16 of the motor, the armature 15 which creates a magnetic field that interacts with the magnetic field pole pieces 17, resulting in the output shaft 5 is transmitted to the additional torque. The magnitude and sign of this moment depends on the ratio of the magnitudes and directions of magnetic fluxes generated by the coil 7 and the pole pieces 17. In the inductor 7, a magnetic field is created by current in the excitation winding 8 through voltage transmitted from the battery 37 via the first voltage regulator 39 and the brush-contact sites 20, 23 and 21, 22 and the pole pieces 17 of the magnetic field generated by the windings 18 through the voltage sent from the battery 37 through the second voltage regulator 41 and the polarity reversal switch 40. Required for motor operation direction of the currents in the armature windings 16 are provided with a switch 14 through the opening of the transistors 42 and 43 when applying to their base voltage through brush-collector nodes 31, 34 and 32, 33 from the respective secondary power supply sources 44 and 45, connected to the battery 37, which if necessary can be recharged cher the Institute with the space vehicle, the first voltage regulator 39 should develop a small voltage and the second voltage regulator 41 is large. In this case, the torque on the output shaft 5 is significantly more torque on the input shaft 4, as most of the power output shaft is transmitted through the motor. For operation of the coupling in the transmission mode, the optimum rotating torque (optimum from the point of view of minimum losses), for example with a uniform movement of the vehicle, the first voltage regulator 39 should produce a relatively large voltage and the second voltage regulator 41 is small. In this case, the torque on the output shaft 5 is almost equal to the torque on the input shaft 4, as most of the power output shaft is transmitted directly through the interaction of the magnetic field of the inductor 7 and the inductive element 10, and the motor is practically idling. In practice, it is possible to work and in the intermediate modes of transmission of torque. To implement the reverse of the output shaft 5, you must change the direction of the current in the windings of the excitation 18 by a polarity reversal switch 40 and simultaneously set a greater value of voltage at the output of the second regulator is of ASI the torque of the output shaft 5 will be determined mainly torque of the electric motor, which in this case has the opposite sign with respect to the sign of the torque of the input shaft 4.

In the considered magnetic clutch slipping elements of the energy loss is minimal due to its utilization by an electric motor that allows this magnetic clutch to use in the vehicle as the clutch device with low loss. This coupling can perform the function of the gearbox, which is very easy to do automatically. The possibility of reverse of allows the considered magnetic coupling to provide a reverse gear of the vehicle, and if necessary to carry out the function of braking, and with the utilization of allocated under braking energy in the battery. In addition, the proposed magnetic coupling capable of providing movement of the vehicle when turned off traction engine at the expense of battery power that may be necessary for environmental reasons when the vehicle, for example, in a closed room.

Thus, the presented data suggest the implementation of the use of the claimed invention the following cumulative conditions: a means of embodying savlon the I clutch; for the claimed invention in the form as it is described in the independent clause following claims, confirmed the possibility of its implementation using the above described in the application or known before the priority date tools and methods; tool embodying the claimed invention in its implementation, is able to achieve perceived by the applicant of the technical result.

Therefore, the claimed invention meets the requirement of "industrial applicability" under the current law.

1. Magnetic clutch of a vehicle containing two independently rotating rotor connected respectively with the master and the slave transmission elements, with one rotor is constructed in the form of a multi-pole inductor, and the other equipped with the inductive element of a ferromagnetic material, characterized in that it introduced coil windings are placed on the inductive element, and the conclusions are electrically connected with the motor, the rotor of which is mechanically connected to a driven element of the transmission.

2. The clutch on p. 1, wherein the independently rotating the rotor connected to the driven element Tran is

 

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