Stepless closed planetary hydromechanical variable

 

(57) Abstract:

Usage: engineering. The inventive continuously variable closed planetary hydromechanical variable contains the driving and driven shafts, a torque Converter and two planetary series. Epicycle gear of the first planetary series connected with the driven shaft. Drove this series with dvuhventsovye satellites connected with the drive shaft. The Central gear of the same number are connected with the pump wheel of the torque Converter. The sun gears of both planetary gear sets are interconnected by the intermediate shaft. Epicycle gear of the second planetary series connected with the turbine wheel of the torque Converter. Drove this series with a pair of satellites connected with the driven shaft. The reactor of the torque Converter is also connected with the driven shaft. 1 Il.

The invention relates to mechanical engineering and can be used in cars instead of the transmission.

Known hydromechanical transmission [1], having a planetary range, epicycle gear which is rigidly connected with the pump wheel of the torque Converter, and the sun gear with the turbine wheel, drove the planetary series connected with the part of the engine power is transmitted to the driven shaft, bypassing the hydraulic transmission and hydraulic element in the whole working area is only working brake.

Closest to the invention is a continuously variable closed planetary hydromechanical variable [2] , comprising driving and driven shafts, a torque Converter and two planetary series, the first of which includes a connected driven shaft with epicycle gear, Sunny and Central gear and connected with the leading carrier with dvuhventsovye satellites, the second planetary range includes connected with the turbine wheel of the torque Converter epicycle and the sun gear and connected to the driven shaft drove with paired satellites, the sun gears of both planetary gear sets are interconnected by the intermediate shaft.

This variable is semipotochnaya. In it the main part of the power of the engine passes through the mechanical parts of the device and the seven power flow are summarized on the driven shaft. For direct transmission, the torque Converter operates as a fluid coupling.

The objective of the invention is the uniform distribution of the loads in both the planetary alignments at different operating modes of the device, reduction of circulating capacity of the second planetary series, animehentai variable contains the driving and driven shafts, torque Converter and two planetary series, the first of which with dvuhventsovye satellites, and the second with a pair of satellite speakers.

Carrier of the first planetary series of rigidly connected with the drive shaft. Epicycle gear of the first planetary series of rigidly connected with the driven shaft. Central toothed gear, which is in toothed engagement with small crowns dvuhventsovye satellites are rigidly connected with the wheel of the torque Converter. Epicycle gear of the second planetary series of rigidly connected with the turbine wheel of the torque Converter, carrier of the second planetary series of rigidly connected with the driven shaft.

The sun gears of both planetary gear sets are interconnected by the intermediate shaft. The reactor Converter is rigidly connected with the driven shaft.

The drawing shows a kinematic diagram of the device.

Stepless closed planetary hydromechanical variable contains a leading 1 and slave 2 shafts, torque Converter 3 and two planetary series 4 and 5, the first of which with dvuhventsovye satellites 7. Drove 8 of the first planetary number 4 is rigidly connected with the drive shaft 1. Epicycle gear 9 of the first planetary series rigidly Soi 11 dvuhventsovye satellites 6, rigidly connected with the pump wheel 12 of the torque Converter 3. Epicycle gear 13 of the second planetary series 5 are rigidly connected to the turbine wheel 14 of the torque Converter 3, drove 15 of the second planetary number 5 is rigidly connected with the driven shaft 2. The sun gear 16 and 17 of both planetary gear sets are interconnected by the intermediate shaft 18. The reactor 19 of the torque Converter 3 is rigidly connected with the driven shaft 2 of the device.

THE OPERATION OF THE DEVICE

Hydromechanical variable is semipotochnaya transmission works in conjunction with a single-stage torque Converter, built sequentially in a mud branch, providing simonetripodi the desired mode of operation, changing smoothly torque on the driven shaft in a wide range, the angular velocity which varies from zero to direct transmission. The engine from dvuhventsovye satellites 6 led 8 of the driving shaft 1 is divided into two streams, one stream on the epicycle gear 9 and the driven shaft 2, the second stream from the Central gear 10 on the pump wheel 12 of the torque Converter 3, the reactor 19 and the driven shaft 2. The reactor has a positive sign action, the torque which acts in the direction of rotation on a driven shaft Erny 13 of the second planetary series 5, from which a pair of satellites 7 is divided into two streams, a third power flow departs on carrier 15 of the second planetary series 5, and a fourth flow of power from the sun gear 17 through the intermediate shaft 18 to the sun gear 16 of the first planetary number 4, which through dvuhventsovye satellites 6 again passes through the same paths, increasing the threads and torque on the parts of the device.

After the seventh flow circulation capacity for the same contours. The range of the transformation of the torque Converter within the capabilities of single-stage torque Converter. Seven power flow are summarized on driven shaft without losses with high efficiency. In the work prevails portable motion of gears and shafts, which also increases the efficiency of the device. For the direct transmission of the torque Converter working fluid coupling, and the entire device rotates as a unit.

Stepless closed planetary hydromechanical variable that contains the driving and driven shafts, a torque Converter and two planetary series, the first of which includes a connected driven shaft with epicycle gear, Sunny and Central gear and connected to the drive shaft drove with dvuhventsovye gear, the sun gear and connected to the driven shaft drove with paired satellites, the sun gears of both planetary gear sets are interconnected by the intermediate shaft, wherein the Central gear is connected with the pump wheel of the torque Converter, and its reactor - driven shaft.

 

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