Automatic stepless mechanical transmission

FIELD: mechanical engineering; automotive industry; machine-tool building.

SUBSTANCE: proposed transmission contains carrier 1 with main planet pinions 6, 7 and additional planet pinion 9, driving central wheel 2 and driven central wheel 3, support wheel 8, input shaft 4 and output shaft 5. Solid planet pinions can play the part of flywheels. Support wheel 8 is secured on hollow intermediate shaft 10 coaxial to input shaft and is coupled with drive of support wheel 8 consisting of three gear wheels 11, 12 and 13. Wheel 13 is intermediate one, being placed between said two wheels, and its axle 14 is installed in transmission housing 15. Two radial axles of carrier 1 are located on one line of axes 01-01 and they carry main and additional planet pinions installed for independent rotation in opposite directions. Line of axis 0-0 of transmission and lines of radial axes 01-01 of carrier intersect in central point 01 relative to which planet pinions rotate.

EFFECT: simplified design, reduced mass of transmission, provision of possibility of automatically changing of torque depending on load on output shaft.

7 cl, 2 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, comprising a housing, input and output shafts, drove with radial axes, which are the main satellites, consisting of coaxially connected to the inner and outer conical wheels, and additional satellites. The inner and outer main wheel of the satellites put into engagement with the sprocket wheel fixed on the input shaft, and a driven wheel mounted on the output shaft, and the said wheel is placed on one side of the radial axis was taken. Additional satellites are put into engagement with the Central support wheel mounted on the end of the hollow intermediate shaft, is placed coaxially with the input shaft. The intermediate shaft is connected with the input shaft by means of three consecutive siteplease wheels, the first of which is fixed to the input shaft, a second wheel on the intermediate shaft and the third wheel is mounted on a support axis and is intermediate between the first and second wheels. The reference axis is placed outside the axis of the transmission. Drove placed on the input shaft with the possibility of independent from the rotation (RF patent No. 2174202, IPC 7 F 16 N 33/14, 3/74, 27.09.2001, B is L. No. 27).

This automatic continuously variable mechanical transmission decreases efficiency and efficient use of engine power by increasing the frequency of rotation of the output shaft, since this decreases the rotation speed of the carrier core and additional satellites due to the fact that during operation of the transmission carrier and the support wheel rotating in one direction. When the maximum frequency of the output shaft carrier and the main stationary satellites above mentioned satellites do not participate in the inhibition of rotation of the carrier and the transmission of torque to the output shaft.

The closest set of features technical solution to the claimed invention is an automatic continuously variable mechanical transmission containing installed rotatably around the axis of the transmission carrier with radial axes, placed on opposite sides of the radial axes drove master and slave Central wheel, made in the form of a bevel gear fixed coaxially on the slave and the master shafts, main satellites introduced in engagement with the master and the slave Central wheels and forming with the latter a pair of wheels, flywheels mounted on radial axes drove, support wheel, made in the form of a conical Central gear wheel mounted on for the sake of the Sabbath.selected axes drove satellites, hard sootnoshienii with flywheels and brought into engagement with the supporting wheel. The radial axis of the led installed in pairs for diameters relative to the axis of the transmission and have a different purpose. On one of these pairs of axes are placed on opposite sides of the axis of transmission of the main satellites that are in mesh with the master and the slave Central wheels and the other pair of axes separately from the main satellites are placed on opposite sides of the axis of transmission of the satellites with flywheels. The support wheel is mounted at the end of the hollow intermediate shaft mounted coaxially with the drive shaft for rotation relative to the shaft. The other end of the hollow intermediate shaft linked with drive wheels. One of the gears of the actuator is fixed on the control shaft, the other gear of the specified drive mounted on the hollow intermediate shaft and the two wheels are connected by means of the intermediate wheel, the axis of which is installed in the housing of the transmission and provides for relying on the case outside the axis of the transmission change of the transmitted torque (RF patent No. 2171927, IPC 7 F 16 N 33/14, 3/74, 10.08.2001, bull. No. 22).

The disadvantage of this automatic continuously variable mechanical transmission is the presence in its composition of the different purposes of the two pairs of radial axes of the waters of the La, one of which contains the main satellites, and on the other pair of axes - additional satellites. This leads to the increase of mass of the carrier and transmission in General, and does not reduce significantly its overall dimensions, which depend mainly on the diameter of all types of wheels included in the transmission. Accommodation at each pair of radial axes were taken only basic or only additional satellites, each of which rotate in the same direction, leading to effects on each radial axis from satellites one-sided in the direction along the line of the axis of transmission and gyroscopic precession forces with the creation of the relevant moments of the forces about a point bearing carrier in a plane aligned with the axis line of transmission that leads to the need to increase the strength and mass of the mentioned radial axes and to increase the bearing carrier with the above unilateral power loads on the radial axis was taken.

The present invention provides the achievement of the technical result, which is to simplify the device, the reduction of mass transfer and to eliminate or reduce negative impacts and gyroscopic precession forces on the radial axis and the bearings were taken. However, a more economical use of motor fuel and, if e is ω decreases harmful environmental impact on the environment used internal combustion engines. Simultaneously with this control becomes a transport machine. The proposed transfer is comparable to the known speed gearbox 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.

This technical result is achieved by the fact that the automatic continuously variable mechanical transmission contains installed rotatably around the axis line of the transmission carrier with radial axes, placed on opposite sides of the radial axes drove master and slave Central wheel, made in the form of bevel gears fixed respectively on the input and output shafts, placed on radial axes drove major satellites introduced in engagement with the master and the slave Central wheels and forming with the latter a pair of wheels, wheel, made in the form of a conical Central gear wheel placed on radial axes drove additional satellites entered into gear with the control wheel. The primary and secondary satellites made solid with the possibility of implementing functions of the flywheel. The support wheel is mounted at the end of the intermediate shaft mounted coaxially with the input shaft is rotatably relative to the shaft. The other end of the intermediate shaft linked with drive wheels, one of the gears of the actuator is fixed on the input shaft, the other gear of the specified drive mounted on the hollow intermediate shaft and the two wheels are connected by means of the intermediate gears, the axis of which is installed in the housing of the transmission and provides for relying on the case outside of the axis line of the transmission change of the transmitted torque.

According to the invention the carrier is made in the form placed on the same line on both sides of the line of the axis of transmission of the two radial axes were taken at each of them in sequence from the line of the axis of transmission to the ends of these axes drove posted by respectively the major and minor satellites with the capability independent from each other, rotating in opposite directions due to the elimination of this negative impact and gyroscopic precession forces on the radial axis and the bearings were taken. In connection with the intersection lines of the transmission axis and the radial axis was taken to one Central point around which make the rotation of the satellites, it is possible manifestations of the law of conservation of the vector of moments of momentum of all the satellites, which is the basis of the health transfer.

As cha is fair case execution the drive wheels transmission contains bevel gears, one of which is made with an inner toothing, and the axis of the intermediate gear mounted in the housing of the transmission parallel to the axis of the transmission.

As a special case of execution, the drive wheels includes bevel gears, the axle intermediate the wheels are positioned in the housing of the transmission at an angle to the axis of the transmission.

As a special case of execution, each of the major satellites made in the form of block two wheels inward and outward relative to the axis of the transmission, introduced separately into engagement with a different master or slave Central wheels and forming with the latter a pair of wheels having different sizes of gear ratio.

As a special case of execution, each of the major satellites of transfer executed in a single gear, entered into engagement simultaneously with the master and the slave Central wheels.

The transmission is equipped with a free wheel mechanism, one of the clips which is fixed in the housing of the transmission, and the other ferrule is connected to the planet carrier with the capability of free rotation were taken only in the direction of rotation of the input shaft and locking the rotation in the direction of rotation of the output shaft.

As a special case of execution, the satellites of the front and coaxially connected to the flywheels, which inertial loads, increasing the mass of the satellites.

In the drawing figure 1 shows in General the automatic continuously variable mechanical transmission, in the drawing, figure 2 shows one of the special cases of the execution of the drive wheels with bevel gears.

Automatic continuously variable mechanical transmission contains installed rotatably around the axis line o-O of the transmission carrier 1 with a radial axis, placed on opposite sides of the radial axis took the lead 2 and slave 3 Central wheel, made in the form of bevel gears fixed respectively to the input 4 and output shafts 5, placed on radial axes drove major satellites 6, 7, entered in engagement with the leading 2 and slave 3 Central wheels and forming with the latter a pair of wheels, wheel 8, is made in the form of a conical Central gear wheel placed on radial axes drove additional satellites 9, entered in engagement with the supporting wheel 8. The main 6, 7, and 9 more satellites are made solid with the possibility of implementing functions of the flywheel. Support wheel 8 is mounted at the end of the hollow intermediate shaft 10 mounted coaxially with the input shaft 4 for rotation relative to this is Ala. The other end of the intermediate shaft 10 is connected with the drive wheels. One of the gear wheels 11 of the actuator is fixed on the input shaft 4, the other gear wheel 12 of the actuator mounted on the hollow intermediate shaft and the two wheels are connected by means of the intermediate gears 13, the axis 14 which is installed in the housing 15 of the transmission and provides for relying on the case outside of the axis line o-O of the transmission change of the transmitted torque on the output shaft depending on the applied load.

Drove 1 made in the form placed on the same line About1-O1on both sides of the axis line o-O of the transfer of the two radial axes were taken at each of them in sequence from the line of the axis of transmission to the ends of these axes drove posted by respectively the main 6, 7, and 9 more satellites with the capability independent from each other, rotating in opposite directions due to the elimination of this negative impact and gyroscopic precession forces on the radial axis and the bearing 16 drove. In connection with the intersection of the axis Oh of the transmission and radial axes O1-O1drove in one Central point O1respect of which make the rotation of the satellites, it is possible manifestations of the law, save the Oia vector of moments of momentum of all the satellites, underpinning the health transfer.

As a special case of execution, the drive wheels comprises a cylindrical gears, one 11 of which are made with internal gearing, and the axis 14 of the intermediate gear 13 is installed in the housing 15 of the transmission parallel to the axis Oh of the transfer.

As a special case of the run (figure 2), the drive wheels includes bevel gears 11, 12, and the axis 14 of the intermediate gear 13 is installed in the housing 15 of the transmission at an angle to the axis line o-O of the transfer.

As a special case of execution, each of the major satellites made in the form of block two wheel - inner 6 and outer 7 relative to the axis line o-O of the transmission, introduced in the engaged position apart from the leading 2 or led 3 Central wheels and forming with the latter a pair of wheels having different sizes of gear ratio.

As a special case of execution, each of the major satellites of the transmission is designed as a single gear, entered into engagement simultaneously with the leading 2 and slave 3 Central wheels.

The transmission is equipped with a free wheel mechanism 17, one of the clips which is fixed in the housing 15 of the transmission, and the other ferrule is connected to the planet carrier 1 with capability of free rotation were taken only in the direction of rotation) is about shaft 4 and locking the rotation in the direction of rotation of the output shaft 5.

As a special case execution satellites coaxially connected to the flywheel 18, which is the inertial loads, increasing the mass of the satellites.

Automatic continuously variable mechanical transmission works as follows.

During the rotation of the input shaft 4 with the leading Central wheel 2 and the stationary output shaft 5 due to the applied load or the beginning of the rotation from a stationary position the blocks of the two wheels 6, 7 main satellites revolve on the radial axes of the carrier 1 around the line About1-O1these axes, as in the described case, the inner wheel 6 mentioned satellites are in engagement with the rotating leading Central wheel 2, and interlocked with the inner wheel 6 of the outer wheel 7 major satellites rolling on a fixed slave Central wheel 3, and engages the carrier 1 with its radial axes in rotation around the axis line o-O of the transfer in the direction of rotation of the input shaft 4. Together with the planet carrier 1 rotates around the axis line o-O of the transmission mounted on radial axes drove additional satellites 9, which are in engagement with the supporting wheel 8. Private transfer is performed when the satellites are connected with the flywheel 18, these flywheels rotate in all modes of transfer together with the relevant satellites.

The drive supports the CSOs wheel 8 by means of its constituent wheels 11, 12, 13 transmits constant rotation in all operating modes of the transmission from the input shaft 4 to the intermediate shaft 10 and secured on the support wheel 8 in the direction opposite to the direction of rotation of the input shaft 4 and the leading Central wheel 2. This took 1 with its radial axis and the support wheel 8 to rotate around the axis line o-O of the transmission in opposite directions. This provides the additional rotation of 9 satellites simultaneously around the axis line o-O of the transmission and lines radial to the axes About1-O1drove, and therefore with respect to the Central point O1crossing the mentioned axis lines, with a maximum frequency.

The above procedures do rotation and interlocked wheels 6, 7 main satellites, because the interior of these wheels 6 is engaged with the rotating leading Central wheel 2 and the outer wheel 7 interacts with the stationary during this operating mode, the slave Central wheel 3.

Due to the fact that the slave Central wheel 3 and the support wheel 8 are placed on opposite sides of the led 1, power wheels 6, 7 of the main satellites and additional satellites 9 rotate on radial axes drove in opposite directions. This leads to the fact that acting on these major satellites 6, 7, and additional satellites 9 gyro is ical and precessional forces are directed in opposite directions, that relieves the load or reduce the effect of these forces on the radial axis of the carrier 1 and the points mentioned forces on the bearing 16 drove. This meant that the action moments both of these forces with respect to the Central point O1and bearing 16 led 1 is not directed in the direction of rotation of the carrier, and in the perpendicular direction, i.e. in the direction of the plane coinciding with the axis line o-O transmission line About1-O1the radial axes of the carrier 1. This follows from the known properties of the gyroscope, the properties of which are all used in this broadcast satellites together with the United with them flywheels (see “Physical encyclopedic dictionary” edited Amerkhanov, Moscow, “Soviet encyclopedia”, 1984, pp. 125-127, Fig. 4, 7 and 8).

Simultaneous rotation of the main 6, 7, and 9 more satellites around two intersecting axes - axis line o-O of the transmission and lines radial to the axes About1-O1led - equivalent to their rotation with respect to the Central point O1crossing the mentioned axis lines. It is known that the rotating body has a certain angular momentum, which is manifested with the observance of fundamental universal conservation law, according to which the angular momentum can only be changed under the action of external forces. It is also known that oment momentum when rotating the phone about a point is a vector quantity. When the above rotation of all satellites 6, 7, 9 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”, Moscow, 1980, page 73/1).

From this it follows that the manifestation of the universal law of conservation of angular momentum prevents rotation of the carrier 1 with its radial axis 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 from the leading Central wheel 2 through the blocks of the wheels 6, 7 main satellites to the slave Central wheel 3 and further to the output shaft 5.

As described above, when the fixed slave Central wheel 3 speed additional satellites 9 with respect to the Central point O1is the greatest. Speed blocks wheels 6, 7 main satellites around the axis line o-O of transmission is greatest. Therefore, under these conditions, the counter-rotation of the carrier 1 around the axis line o-O of the transfer will also be the maximum that will deliver on the stationary slave Central wheel 3, the maximum is about the size of the torque. This permits the operation of the engine and rotation of the input shaft 4 together with the leading Central wheel 2 with a stationary output shaft 5. External support for braking the rotation of the carrier 1 and ensure the transfer and conversion of torque in the end is the body 15 of the automatic transmission, in which you installed the axle intermediate the wheels 14 of the drive wheels 8.

From the above it follows that the magnitude of the retarding torque applied to the cage 1, depends on the rotating mass of all satellites 6, 7, and 9, and the frequency of their rotation with respect to the Central point O1and from gear ratios all included in the transfer of pairs of wheels. This determines the basic transmission parameters.

Under the action of the maximum value of the moment of force applied to the slave Central wheel 3, it starts to rotate in the opposite direction compared with the input shaft 4 and the leading Central wheel 2. This slows down the rotation of the carrier 1 with the radial axis around the axis line o-O of the transfer with simultaneous slowdown additional satellites around 9 line radial axes O1-O1drove and the Central point O1. Accordingly associated with this braking torque on the drive rod 1 and depend on this led the rank of the transmitted torque.

However, with the start of rotation of the slave Central wheel 3 speed unit wheels 6, 7 main satellites around the line radial axes O1-O1drove increases, because the satellites are in engagement with the leading 2 and slave 3 Central wheels that rotate in opposite directions. This guarantees the preservation of the retarding torque on the drive rod 1 in any mode of transmission.

With further increase of frequency of rotation of the slave Central wheel 3, there is a simultaneous decrease in the frequency of rotation of the carrier 1 around the axis line o-O of the transmission with a corresponding decrease in the applied braking torque and the value to be transmitted to the output shaft torque.

When the maximum rotational speed of the slave Central wheel 3 and the output shaft 5 of the carrier 1 is stationary. However, while it includes a braking torque transmitting torque to the slave Central wheel 3. This is because the support wheel 8 rotates continuously and causes the rotation of the additional satellites 9 under all modes of operation, including when stationary the driver 1. In addition, under these conditions, the blocks of the wheels 6, 7 main satellites rotate at the maximum frequency, as they entered into engagement with a rotating in opposite directions leading 2 and slave 3 Central wheels, the first of which rotates at a constant speed, and the slave Central wheel 3 with the maximum frequency. The stability of the carrier 1 and its radial axes in this mode of operation is ensured by the fact that even with their small rotations around the axis line o-O of the transfer is a change of direction vectors of the moments of momentum of all satellites with respect to the Central point O1with the manifestation of this universal law of conservation of angular momentum.

In the particular case of performing transmission connected with satellites flywheels 18 last intensify the effect of the inertial masses of the respective satellites when the transmit operation.

In the particular case of the transfer, when each of the major satellites designed as a single gear, the nature of the above transfer operation remains the same, but with less possibilities of determining the value of the gear ratio between the master 2 and slave 3 Central wheels. However, this simplifies the transmission device.

If you want to transfer torque and rotation from the output shaft 5 on the input shaft 4 for the purpose of braking the working machine engine operation is terminated. Under the influence of rotating the output shaft 5 is the circuit of the free-wheeling mechanism 17, which pre is atitvout the rotation of the carrier in the direction of rotation of the output shaft 5 and provides transmission of rotation and the flow of power from the rotating output shaft 5 on the input shaft 4 and further to the engine, which provides resistance to rotation of the shaft when the idle mode, which leads to inhibition of the working machine. It also provides start-up of the engine by towing the working machine.

1. Automatic continuously variable mechanical transmission containing installed rotatably around the axis line of the transmission carrier with radial axes, placed on opposite sides of the radial axes drove master and slave Central wheel, made in the form of bevel gears fixed respectively on the input and output shafts, placed on radial axes drove major satellites introduced in engagement with the master and the slave Central wheels and forming with the latter a pair of wheels, wheel, made in the form of a conical Central gear wheel placed on radial axes drove additional satellites entered into engagement with the supporting wheel, basic and additional satellites are made solid with the possibility of also features wheels, a supporting wheel mounted on the end of the hollow intermediate shaft mounted coaxially with the input shaft for rotation relative to the shaft, the other end of the intermediate shaft linked with drive wheels, one of the gears of the actuator is fixed on the input shaft, the other gear of the specified drive mounted on the hollow intermediate shaft and the two wheels are connected by means of the intermediate gears, axis which is installed in the housing of the transmission and provides for relying on the case outside of the axis line of the transmission change of the transmitted torque, characterized in that the carrier is made in the form placed on the same line on both sides of the line of the axis of transmission of the two radial axes were taken at each of them in sequence from the line of the axis of transmission to the ends of these axes drove posted by respectively the major and minor satellites with the capability independent from each other, rotating in opposite directions due to the elimination of this negative impact and gyroscopic precession forces on the radial axis and the bearing carrier, and in with the intersection lines of the transmission axis and the radial axis was taken to one Central point around which make the rotation of the satellites, it is possible manifestations of the law of conservation of the vector of moments of momentum of all the satellites, which is the basis of the health transfer.

2. Transmission according to claim 1, characterized in that as a special case of the execution of the drive wheels includes bevel gears, one of which is made with an inner toothing, and the axis of the intermediate gear mounted in the housing of the transmission parallel to the axis of the transmission.

3. Re the ache according to claim 1, characterized in that as a special case of the execution of the drive wheels includes bevel gears, the axle intermediate the wheels are positioned in the housing of the transmission at an angle to the axis of the transmission.

4. Transmission according to claim 1, characterized in that as a special case of the execution of each of the major satellites made in the form of block two wheels inward and outward relative to the axis of the transmission, introduced separately into engagement with a different master or slave Central wheels and forming with the latter a pair of wheels having different sizes of gear ratio.

5. Transmission according to claim 1, characterized in that as a special case of the execution of each of the major satellites made in the form of one gear, entered into engagement simultaneously with the master and the slave Central wheels.

6. Transmission according to claim 1, characterized in that it is equipped with a free wheel mechanism, one of the clips which is fixed in the housing of the transmission, and the other ferrule is connected to the planet carrier with the capability of free rotation were taken only in the direction of rotation of the input shaft and locking the rotation in the direction of rotation of the output shaft.

7. Transmission according to claim 1, characterized in that as a special case execution satellites coaxially connected to the flywheel, which is the inertial loads, increasing the mass of the satellites.



 

Same patents:

FIELD: mechanical engineering.

SUBSTANCE: transmission comprises housing (14), axially aligned input (1) and output (2) shafts, central conical driving (3) and driven (4) gear wheels, carrier (5) with radial axles and satellites made of wheels (6) and (7), basic, additional (8), and auxiliary (9) satellites which are in engagement with driving (3), driven (4) and additional bearing (11) and auxiliary bearing (10) central conical gear wheels, respectively. Additional (11) and auxiliary (10) bearing wheels are mounted on additional (12) and auxiliary (15) hollow intermediate shafts mounted coaxially with respect to input (1) and output (2) shafts, respectively, and connected with them through drives made of gear wheels and shafts (13) and (16).

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EFFECT: simplified design and reduced labor consumption in manufacturing.

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EFFECT: simplified design and reduced labor consumption in manufacturing.

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