Planetary gearbox changes gear vehicle

 

The invention relates to mechanical engineering and can be used in vehicles. Three interconnected satellites 7, 8, 9, gears connected respectively: the first satellite 7 with the first Central sun wheel 5, the second satellite 8 is associated with epicycle wheel 10, and the third satellite 9 - with the second Central sun wheel 6. The input shaft 2 is connected with the epicycle wheel 10 through the first locking clutch 12. The input shaft 2 is also connected to the first Central sun wheel 5 by means of the free wheel mechanism 13. Carrier 11 is stopped with the brake 14. The output shaft 3 is connected by means of the second locking clutch 15 with the Central sun wheel 5 and through the mechanism of free running 16 - with a Central sun gear. 6. The technical result - the exception of breaking the flow of power when shifting gears by switching regular controls without removing the previous one. 1 Il.

The invention relates to mechanical engineering and can be used in vehicles.

Known planetary gearbox changes gear Ford C6 (Mazalov N. D., Trusov, S. M. "Yat control elements, includes two locking clutch, two brakes, and free-wheeling mechanism.

The disadvantage is the appearance of breaking the flow of power when shifting, and complex control system gear, driven by the need to simultaneously off one control element and the inclusion of the other, as well as increased axial dimension of the transmission due to the use of two three planetary mechanisms.

Closest to the proposed solution is a Borg-Warner model 35 (N. Mazalov.D., Trusov, S. M. "Hydromechanical transmission. M. , engineering, 1971, page 181). Planetary gearbox changes gear mentioned schema contains installed in the housing complex four-stage planetary gear compact structure with two satellites, interconnected, five control elements, including two locking clutch, two brakes, and free-wheeling mechanism.

The disadvantage is the appearance of breaking the flow of power when shifting gears and the complexity of the control system gearbox.

The challenge is avoiding breaking the flow of power when shifting gears by switching the ocher is th box changes gear of the vehicle, containing within the enclosure of the input and output shafts, a complex four-stage planetary gear compact structure with two Central sun gears, control elements, including two locking clutch, one of which is posted on the sign-in box, a brake associated with the planet carrier of the specified planetary mechanism, and the mechanism of a free running specified planetary mechanism is made with three interconnected satellites, the first and third of which, in turn, coupled with the two Central sun gears, the second satellite with epicycle wheel, and the first locking clutch, installed at the entrance to the box and connected with the input shaft, connect with epicycle wheel of the planetary mechanism, and through the above mechanism of free running with the first Central sun gear and the second locking clutch is installed between the first Central sun gear and the output shaft, and, in addition, the box is further provided with a second free-wheeling mechanism, installed between the second sun wheel and the output shaft.

Analysis of the known technical the availability of compact planetary mechanism with interconnected three satellites specified in the entity-relationship elements gives the possibility to solve the problem. Therefore, we can conclude about the relevance of the proposed decision criteria for eligibility.

The drawing shows the proposed planetary gearbox changes gear of the vehicle, where the body 1 is installed in the input shaft 2, the output shaft 3 and a complex four-stage planetary gear compact structure 4, which contains two Central sun gear 5 and 6, three interconnected satellites 7, 8, 9, associated respectively: the first 7 with the first Central sun wheel 5, the second satellite 8 is associated with epicycle wheel 10, and the third satellite 9 - with the second Central sun wheel 6, and the carrier 11. The input shaft 2 is connected with the epicycle wheel 10 through the first locking clutch 12 and the input shaft 2 has the ability to connect with free wheel mechanism 13 with the first Central sun wheel 5. This led 11 is stopped with the brake 14. Further, the Central sun gear 5 and the output shaft 3 is connected by means of the second locking clutch 15. And, in addition, the output shaft 3 is connected with the Central sun gear 6 by means of the free wheel mechanism 16.

Box changes gear works as the free wheel 13 and 16. Rotation is transmitted from the drive shaft 2 of the planetary transmission (PEP) via included locking the clutch 12 on the epicycle wheel 10, through the mechanism of a free motion 13 - on the sun wheel 5. In this case, since two elements of the planetary mechanism acquired the same angular speed, the same speed will have the other two elements of the planetary mechanism: a Central sun gear 6 and the carrier 11. The Central sun wheel 6 through jammed the free wheel mechanism 16 will result in rotation of the output shaft 3.

For vklucheniya second gear turns on the brake 14, the first locking clutch 12 is not turned off, but turned off the free-wheeling mechanism 13 due to the fact that when the driver stopped 11 sun wheel 5 will become more than the epicycle wheel 10 angular velocity. Rotation is transmitted from the input shaft 2 through the control panel left on the locking clutch 12 on the epicycle wheel 10, then on the third satellite 9 and the second Central sun wheel 6, with his remaining stuck freewheel mechanism 16 and the output shaft 3.

To enable third transmission switches on the second locking the clutch 15, the first locking FR the locking clutch 15, the output shaft 3 acquires the angular velocity, greater than that of the sun gear 6. Rotation is transmitted from the drive shaft 2, the control panel via the included locking the clutch 12 on the epicycle wheel 10, the second satellite 8, the first satellite 7 and with him - at first the Central sun wheel 5, the second locking the clutch 15 and the output shaft 3.

Thus, when operating the control panel when switching from transmission to adjacent transmission both in ascending and in descending order, is not breaking the flow of power, because not disabled enabled previous controls, and connects the following when switching to high or off when switching to low gear, which is followed by the automatic jamming or rasklinivanie mechanisms of free running.

Claims

Planetary gearbox changes gear of a vehicle, containing within the enclosure input, output shafts, a complex four-stage planetary gear compact structure with two Central sun gears, control elements, including two locking clutch, one of which is posted on the sign-in box, a brake associated with the planet carrier of the specified planetary fur is alenamy between satellites, the first and third of which in turn are connected respectively with the two Central sun gears, and the second epicycle wheel, and the first locking clutch installed at the entrance to the box and connected with the input shaft, connect with epicycle wheel of the planetary mechanism, and through the above mechanism of free running with the first Central sun gear, the second locking clutch is installed between the first Central sun gear and the output shaft, and, in addition, the box is further provided with a second free-wheeling mechanism, placed between the second Central sun gear and output shaft.

 

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