Automatic infinitely variable gear transmission

FIELD: mechanical engineering.

SUBSTANCE: transmission comprises housing (1), axially aligned driving (2) and driven (3) shafts, driving (4) and driven (5) central gear wheels, central conical thrust gear wheel (10), carrier (6) with radial axles provided with main satellites (7) and (8) and additional satellites (9), bearing shaft (11) with two cylindrical gear wheels (12) and (13), and intermediate shaft (16). Driving wheel (4), driven wheel (5), and two main satellites (7) and (8) are made of cylindrical gear wheels. Driving wheel (4) and driven wheel (5) are arranged on opposite sides of radial axles of carrier (6). The two wheels of main satellites (7) and (8) are rigidly interconnected through shaft (17) of main satellites to form a single unit. The unit is mounted for permitting rotation on one of the axles of carrier (6) parallel to the axis of the transmission.

EFFECT: simplified design and reduced labor consumption in manufacturing.

5 cl, 1 dwg

 

The invention relates to mechanical engineering and can be used in the transport industry, in particular in the automotive industry, as well as in machine tools.

Known automatic continuously variable mechanical transmission that contains the master and slave Central bevel gear wheels which are in engagement respectively with the inner and outer relative to the geometric axis of transmission of the wheels of the main satellites that are placed on radial axes drove, additional satellites are placed similarly to the main satellites put into engagement with the fixed in the housing programmes of the Central bevel gear support wheel. The primary and secondary satellites made with massive rims, giving these satellites additional mass, providing exercise simultaneously the functions of the inertial loads in the form of wheels (patent RF №2178108, IPC 7 R 16 N 33/14, 3/74, 10.01.2002. Bull. No. 1).

The disadvantage of this program is to reduce the efficiency of engine power when the rotational speed of the driven shaft. When the maximum rotational speed of the driven shaft and drove additional satellites are fixed and these satellites do not participate in the torque transmission.

The closest set of features technical solved the eat to the claimed invention is an automatic continuously variable inertial transfer, comprising a housing, coaxial driving and driven shafts mounted on the last master and slave Central bevel gear mounted for rotation around the axis of the transmission carrier with radial axes which are rotatably mounted semi-detached two satellites, internal and external relative to the axis of the transmission which engages with different Central bevel gears. Master and slave Central bevel gear wheels placed on one side of the radial axis was taken. On radial axes drove installed coaxially interlocked with flywheels satellites which engages with a Central conical toothed reference wheel, and blocks of satellites and satellites with flywheels posted on radial axes were taken with independently from each other in rotation. The Central bevel gear wheel mounted coaxially about the axis of the transmission and coaxial to the drive shaft for rotation and has a support for the transmission of torque to the inertial body transfer means installed in the housing parallel to the transmission axis of a supporting shaft, on which are fixed two toothed wheels, one of which is in engagement with the toothed wheel fixed on the control shaft, and the other wheel with a gear wheel which, rigidly coaxially connected with the Central bevel gear bearing wheel with hollow intermediate shaft to provide rotation of this support wheels in the direction of rotation of the drive shaft (patent RF №2163316, IPC 7, F 16 N 33/14, 3/74, 20.02.2001. Bull. No. 5).

The disadvantage of this automatic continuously variable inertial transfer is the presence in its composition of nine conical toothed wheels, which complicates the device and increases the complexity of its manufacture.

The present invention provides the achievement of the technical result, which is to simplify the device and reduce the complexity of the manufacturing automatic stepless transmission by replacing six bevel gears four bevel gears compared to above the closest analogue. The transmission provides a more economical use of motor fuel by reducing this harmful environmental impacts. Simplified management of the transport machine. The transfer is comparable to the known transmissions on the simplicity of the device, the overall dimensions and weight. Due to the constant engagement of the used gears it is exposed to less wear, more durable and reliable. Is the possibility of braking the rotation of the driven shaft and the work is her machine with the help of the engine, for example, when driving a transport vehicle downhill, and provides the possibility of start of the internal combustion engine by towing the machine. The proposed transfer allows you to transfer the maximum amount of torque to slow the load driven shaft without stopping the operation of the engine.

This technical result is achieved by the fact that the automatic continuously variable mechanical transmission includes a housing, coaxial driving and driven shafts mounted on the last master and slave Central toothed wheel mounted for rotation around the axis of the transmission carrier with the radial axis, which is rotatably mounted interlocked main satellites located separately from engagement respectively with the leading and trailing wheels. On radial axes drove installed additional satellites which engages with the Central bevel gear support wheel, which is installed coaxially relative to the axis of the transmission and coaxial to the drive shaft for rotation relative to the shaft and has a support for the transmission of torque forces on the housing of the transmission via the housing parallel to the axis of transmission of a supporting shaft, on which are fixed two bevel gears, one to which x is in engagement with the toothed wheel, mounted on the control shaft, and the other wheel with the toothed wheel rigidly coaxially connected with the supporting wheel by means of the intermediate shaft, is placed coaxially to the drive shaft, rotation of this support wheels in the direction of rotation of the drive shaft. These two pairs of cylindrical gears form a supporting shaft drive.

According to the invention the master and the slave wheel and two main satellite made in the form of cylindrical gears, these master and slave wheel placed on opposite sides of the radial axis was taken, and two wheels of the main satellites rigidly connected in a single unit through the shaft of the main satellites, which is placed rotatably on one of the radial axes of the carrier parallel to the axis of the transmission. The total gear ratio of the two pairs of gear wheels drive wheels provides the rotation of the intermediate shaft and the wheels with greater frequency in comparison with the drive shaft. The center of mass was taken as a whole, together with additional and major satellites, combined with the axis line of transmission by placing on the radial axis of the carrier, no carrier main satellites, additional balancing load, including in the form of more massive additional satellites compared to the other satellite.

Additional satellites are made with massive rims, which is the inertial loads, increasing the number of additional satellites that carry out the function of the flywheel.

As a special case execution, leading and follower wheels have different diameters.

As a special case of the execution of the master and slave wheels have the same diameter.

The transmission is equipped with a free wheel mechanism disposed between the master and the slave wheels, leading ferrule which is connected to the driven shaft and the driven yoke - drive shaft.

Line radial axes drove placed perpendicular to the axis of the transmission and these axis lines intersect at the center point.

The drawing gives a General view of an automatic continuously variable mechanical transmission.

Automatic continuously variable mechanical transmission includes a housing 1, a coaxial lead 2 and slave 3 shafts mounted on the latter leading 4 and led 5 Central gear mounted rotatably around the axis line O-O of the transmission carrier 6 with a radial axis, which is rotatably mounted interlocked main satellites 7, 8, are separately engaged respectively with the leading 4 and led 5 wheels. On radial axes drove 6 installed additional satellites 9 which engages with the Central con the ical toothed reference wheel 10, which is installed coaxially relative to the axis line O-O of the transmission and coaxial to the drive shaft 2 for rotation relative to the shaft and has a support for the transmission of torque forces on the housing of the transmission via the housing parallel to the axis line O-O of the transfer supporting shaft 11, on which are fixed two bevel gears 12, 13, one of which 12 is in engagement with the toothed wheel 14, mounted on the control shaft 2, and the other wheel 13 with the drive gear 15 rigidly coaxially connected with the supporting wheel 10 by means of the intermediate shaft 16, posted coaxial drive shaft, rotation of this support wheels in the direction of rotation of the drive shaft. These two pairs of cylindrical gear wheels 14, 12, and 13, 15 form the drive support shaft 11.

Leading 4 and led 5 wheel and two main satellites 7, 8 are in the form of cylindrical gears, these master and slave wheel placed on opposite sides of the radial axes of the carrier 6, and the two wheels of the main satellites rigidly connected in a single unit by means of the shaft 17 of the main satellites, which is placed rotatably on one of the radial axes of the carrier parallel to the axis line O-O of the transfer. The total gear ratio of the two pairs of gear wheels 14, 12, and 13, 15 of the drive support shaft 11 provides rotations is of intermediate shaft 16 and the supporting wheel 10 with greater frequency in comparison with the drive shaft 2. The center of mass was taken as a whole, together with additional and major satellites, combined with the axis line O-O of the transfer by placing on the radial axis of the led 6, no carrier main satellites 7, 8, additional balancing load 18, including in the form of more massive additional satellite 9 in comparison with other satellite 9.

Additional satellites 9 made with massive rims, which is the inertial loads, increasing the number of additional satellites that carry out the function of the flywheel.

As a special case of execution, the host 4 and led 5 wheels have different diameters.

As a special case of execution, the host 4 and led 5 wheels have the same diameter.

The transmission is equipped with a free wheel mechanism 19 disposed between the lead 4 and led 5 wheels, leading ferrule which is connected to the driven shaft 3 and the driven yoke - drive shaft 2.

Line radial axes O1-O1drove 6 spaced apart and perpendicular to the axis O-O of the transfer and these axis lines intersect at the center point O1.

Automatic continuously variable mechanical transmission works as follows.

During the rotation of the driving shaft 2 with the sprocket wheel 4 and the stationary driven shaft 3 with a driven wheel 5 in connection with the attached to the follower shaft loading or starting rotation is still a driving wheel causes the rotation are located in engagement one of the wheels 7 of the main satellite and interlocked with him another wheel 8 of the main satellite, which rolls on a fixed slave wheel and engages drove 6 with its radial axes in rotation around the axis line O-O of the transfer in the opposite direction to the rotation of the drive shaft 2. When the rotation of the carrier 6 is placed on its radial axes additional satellites 9 roll on the supporting wheel 10. The drive wheels consisting of pairs of gear wheels 14, 12, and 13, 15, causes the support wheel in constant rotation in all modes of transmission in the direction of rotation of the drive shaft 2 and more by comparison frequency. This helps to increase the speed of extra satellites 9 on the radial axes of the carrier 6, which is provided by the drive support shaft 11, having externally on the housing 1 transmission. For the above reasons, when the fixed driven shaft 3 with a driven wheel 5 speed drove together with additional satellites 9 around the axis line O-O of the transfer and additional satellites on the radial axes of the led 6 is the maximum.

Simultaneous rotation of the additional satellites 9, performs the function of the flywheel, around two intersecting axes lines O-O transmission and O1-O1the radial axes of the led 6 is equivalent to their rotation about the center point O1crossing the mentioned axis lines. It is known that a rotating body has determined the military momentums, which manifests itself with the observance of fundamental physical law of conservation, according to which the angular momentum can only be changed under the action of external forces. It is also known that the angular momentum when rotating the phone about a point is a vector quantity. When the above character rotation additional satellites with respect to the Central point O1the vectors of their moments of momentum constantly change their direction. Actions on vectors reflect the appropriate actions on vector quantities (see "technical dictionary" edited Awesonme, second edition, ed. "Soviet encyclopedia", M, 1980, page 73/1).

From this it follows that the physical manifestation of the law of conservation of angular momentum prevents rotation of the carrier 6 around the axis line O-O of the transfer. In this regard, the carrier and its radial axis are the backbone for transmission of torque between the drive wheels 4 through the power of the wheels 7, 8 of the main satellites to the follower wheel 5 and then to the driven shaft 3.

As described above, when the fixed driven shaft 3, the rotation frequency of extra satellites with respect to the Central point O1is maximum. This counter-rotation of the carrier 6 around the axis line O-O of the transfer will also be Maxi is real, ensure the condition of the transmission driven shaft maximum value of torque. This permits the operation of the engine and rotation of the drive shaft 2 with the leading wheel and the supporting wheel 10 with a stationary driven shaft 3. External support for the counter-rotation of the carrier and ensure the transfer and conversion of torque in the end is the transmission housing 1 in which is placed a support shaft 11 of the drive wheels 10. The magnitude of the transmitted torque also depends on the gear ratios all included in the transfer of pairs of wheels, as well as on the ratio of the diameters of the lead 4 and the follower 5 wheels.

Under the action of the maximum value of the moment of force applied to the follower wheel 5 and the follower shaft 3, they start to rotate in the same direction as the driving shaft 2. This slows down the rotation of the carrier 6 around the axis line O-O of the transfer with simultaneous slowdown additional satellites with respect to the Central point O1. Accordingly associated with this braking torque on the carrier 6 and depending on this value of the transmitted torque.

When the maximum rotational speed of the driven wheel 5 and the driven shaft 3 drove motionless. However, while it includes a braking torque to ensure equauy transfer torque to the slave wheel 5. This is due to the fact that the supporting wheel 10 rotates continuously with greater frequency in comparison with the drive shaft 2 and causes the rotation of the additional satellites under all modes of transmission, including when stationary the driver. The stability of the carrier and its radial axis when the rotational speed of the driven shaft is ensured by the fact that even with their small rotations around the axis line O-O of the transfer is the change of the direction vectors of the moments of momentum of extra satellites with the manifestation of this physical law of conservation.

If you want to transfer torque and rotation from the driven shaft 3 on the driving shaft 2 to provide braking of the working machine engine operation is terminated. Under the influence of rotating the driven shaft in connection with the ongoing movement of the machine is the closure of the free-wheeling mechanism 19, which provides the transmission of rotation and power flow on the driving shaft, and further to the engine, which provides the counter-rotation of the driven shaft and the braking of the working machine. In the same way lets start the engine by towing the working machine.

1. Automatic continuously variable mechanical transmission, comprising a housing, coaxial driving and driven shafts mounted on the last master and slave the Central gear, installed rotatably around the axis line of the transmission carrier with the radial axis, which is rotatably mounted interlocked main satellites that are separately engaged respectively with the master and the slave wheels on radial axes drove installed additional satellites which engages with the Central bevel gear support wheel, which is installed coaxially relative to the axis of the transmission and coaxial to the drive shaft for rotation relative to the shaft and has a support for the transmission of torque forces on the housing of the transmission via the housing parallel to the axis of transmission of a supporting shaft, on which are fixed two bevel gears, one of which is engaged with a toothed wheel fixed on the control shaft, and the other wheel with the toothed wheel rigidly coaxially connected with the supporting wheel by means of the intermediate shaft, is placed coaxially to the drive shaft, rotation of this support wheels in the direction of rotation of the drive shaft, these two pairs of cylindrical gears form the drive support shaft, wherein the master and slave wheel and two main satellite made in the form of cylindrical gears, these leading and follower gear RA is medeni on opposite sides of the radial axis was taken, two main wheel satellites rigidly connected in a single unit through the shaft of the main satellites, which is placed rotatably on one of the radial axes of the carrier parallel to the axis of the transmission, the total gear ratio of the two pairs of gear wheels drive wheels provides the rotation of the intermediate shaft and the wheels with greater frequency in comparison with the drive shaft, the center of mass was taken as a whole, together with additional and major satellites, combined with the axis line of transmission by placing on the radial axis of the carrier, no carrier main satellites, additional balancing load, including in the form of more massive additional satellite compared to other satellite.

2. Transmission according to claim 1, characterized in that the additional satellites are made with massive rims, which is the inertial loads, increasing the number of additional satellites that carry out the function of the flywheel.

3. Transmission according to claim 1, characterized in that, as a special case execution, leading and follower wheels have different diameters.

4. Transmission according to claim 1, characterized in that, as a special case execution, leading and follower wheels have the same diameter.

5. Transmission according to claim 1, characterized in that it is equipped with a free wheel mechanism placed is between the master and the slave wheels leading the yoke which is connected to the driven shaft and the driven yoke - drive shaft.

6. Transmission according to claim 1, characterized in that the line radial axes drove placed perpendicular to the axis of the transmission and these axis lines intersect at the center point.



 

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FIELD: mechanical engineering.

SUBSTANCE: transmission comprises housing (1), axially aligned driving (2) and driven (3) shafts, driving (4) and driven (5) central gear wheels, central conical thrust gear wheel (10), carrier (6) with radial axles provided with main satellites (7) and (8) and additional satellites (9), bearing shaft (11) with two cylindrical gear wheels (12) and (13), and intermediate shaft (16). Driving wheel (4), driven wheel (5), and two main satellites (7) and (8) are made of cylindrical gear wheels. Driving wheel (4) and driven wheel (5) are arranged on opposite sides of radial axles of carrier (6). The two wheels of main satellites (7) and (8) are rigidly interconnected through shaft (17) of main satellites to form a single unit. The unit is mounted for permitting rotation on one of the axles of carrier (6) parallel to the axis of the transmission.

EFFECT: simplified design and reduced labor consumption in manufacturing.

5 cl, 1 dwg

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