RU2686417C1 - Nine-way gearbox with two clutches and planetary mechanism - Google Patents

Abstract

FIELD: machine building.SUBSTANCE: invention relates to transmission. Gearbox comprises gear (19) surrounding solid primary shaft (2) and engaged with intermediate gears (20 and 21) engaged with countershaft gears (22 and 23) of intermediate shafts (9 and 10), coupling (31) for alternate coupling with shaft (2) of gear (19) and gear (24) engaged directly with gears (25 and 26) of shafts (9 and 10). Gearbox also comprises coupling (32) for connection between shaft (2) and secondary shaft (6) arranged between gears (24 and 27) surrounding said shafts and engaged directly with gears of shafts (9 and 10).EFFECT: higher operational capabilities of gearbox.4 cl, 2 dwg

Description

The technical solution relates to the transmissions of vehicles. It concerns a nine-speed gearbox with two clutches and a planetary gear.

In the application number 102012217503, published in Germany, shows a gearbox with two clutches and a planetary mechanism, containing six rows of gears and clutch transmission control (see. Fig. 3). The kinematic scheme of this gearbox allows you to get nine forward gears. However, this gearbox has a complex structure and relatively large axial dimensions.

The closest analogue is a nine-speed gearbox with two clutches and a planetary mechanism, presented in figure 13 in the application number 102013222510, published in Germany. It contains an input shaft, solid and tubular primary shafts with freely located gears on them, a secondary shaft with a planetary gear sun gear fixed on it, located coaxially with the primary shafts, intermediate shafts with gears fixed on them, meshed with gears located on primary gears and secondary shafts, output shaft connected to the planet carrier, gear, located freely on the secondary shaft with the possibility of alternating connection with it and the planet carrier container mechanism for alternately coupling a compound of the tubular primary shaft gear surrounding the primary shafts. However, in this gearbox, the reverse gear and the first gear are engaged by the same clutch, which makes it impossible to “swing” mode (quickly changing the direction of movement of the vehicle “forward and backward”), and this reduces the operational capabilities of the vehicle. The mode of "swinging" is especially important for vehicles operating in difficult road conditions with a high probability of slipping.

The task to be solved is to create a nine-speed gearbox with two clutches and a planetary mechanism, which has wide operational capabilities, namely the ability to change the direction of rotation of the output shaft as quickly as possible, which allows you to quickly change the direction of movement "back and forth" of a vehicle operating in difficult driving conditions high probability of slipping.

The solution to the task of creating a nine-speed gearbox with wide operational capabilities is achieved by the fact that a nine-speed gearbox with two clutches and a planetary mechanism contains an input shaft, solid and tubular primary shafts, intermediate shafts with gears fixed on them, a secondary shaft with solar fixed on it the gear of the planetary gear, the output shaft connected to the planet carrier gear, gears surrounding the primary shafts and meshed directly with gear with thorns of intermediate shafts, a gear wheel surrounding the secondary shaft with the possibility of alternating connection with it and with the planet carrier of the planetary mechanism. This gearbox contains a gear wheel surrounding the solid input shaft and meshed with intermediate gears engaged with the gears of the intermediate shafts, a clutch for alternate coupling with the solid primary shaft gears engaged with the gears of the intermediate shafts, and gears meshed directly with the gears intermediate shafts, coupling for coupling between a solid primary shaft and a secondary shaft, placed between the gears surrounding these shafts and meshed directly with the gears of intermediate shafts.

With this implementation of a nine-speed gearbox with two clutches and a planetary mechanism, it is possible to quickly change the direction of movement of the “forward-backward” vehicle operating in difficult road conditions with a high probability of slipping. As a result, the creation of a nine-speed gearbox with wide operational capabilities is ensured.

The hub of the coupling, located between the gears surrounding the solid primary shaft and the secondary shaft, is fixed on the secondary shaft.

The gear that surrounds the secondary shaft can be made with two splined rims located on different sides of the shaft to enable it to be connected with individual couplings with the secondary shaft and with the planet carrier.

The coupling for coupling the secondary shaft with the gear wheel surrounding this shaft may be located next to the coupling, which is used for coupling a continuous input shaft and the secondary shaft between them.

The figure 1 shows the kinematic diagram of a nine-speed gearbox with two clutches and a planetary mechanism.

The figure 2 shows the kinematic diagram of a nine-speed gearbox with two clutches and a planetary mechanism in another of its performance.

The nine-speed gearbox shown in Figure 1 contains the input shaft 1, solid and tubular input shafts 2 and 3, driven by clutches 4 and 5. The gearbox also contains the output shaft 6 with a planetary gear 8 fixed on it with a sun gear 7, located coaxially with the primary shafts 2 and 3, two intermediate shaft 9 and 10 and located coaxially with the output shaft 6 output shaft 11 connected to the planet carrier 12 of the planetary mechanism 8. A gear 13 is engaged on the tubular primary shaft 3, meshed with the gears 14 and 15 mounted on intermediate shafts. On a solid input shaft 2 are free gear 16, meshed with gears 17 and 18, mounted on intermediate shafts, gear 19 reversing gear, meshed with intermediate gears 20 and 21, meshed with gears 22 and 23, mounted on intermediate shafts, and gear 24 , hooked with gears 25 and 26, fixed on the intermediate shafts. On the secondary shaft 6 is freely gear 27, meshed with gears 28 and 29, mounted on the intermediate shafts.

This gearbox contains a clutch 30 for alternately connecting with a tubular primary shaft 3 gears 13 and 16 surrounding the primary shafts, a clutch 31 for alternate communication with a solid primary shaft 2 gears 19 reversing gear engaged with intermediate gears 20 and 21 meshed with gears 22 and 23 intermediate shafts, and gears 24 meshed directly with gears 25 and 26 of the intermediate shafts, a clutch 32 for interconnecting the continuous input shaft 2 and the output shaft 6 located between the gears 24 and 27 surrounding these shaft and links directly to the gears of the intermediate shafts. The gearbox contains a double-acting clutch 33 for alternately connecting the gear 27 surrounding the output shaft 6, with the output shaft 6 and with the planet carrier 12 of the planetary mechanism 8 carrying the satellites. The satellites mounted on the carrier 12 are engaged with the ring gear 34 and with the sun gear 7 mounted on the secondary shaft 6. The planetary gear 8 comprises a clutch 35 for alternately coupling the ring gear 34 to the gear box housing 36 and with the planet carrier 12 of the planetary gear 8 connected with the output shaft 11 of the gearbox.

Transmission, shown in figure 1, works as follows.

For forward movement of the vehicle connect the clutch 35 of the crown gear 34 of the planetary mechanism 8 with the body 36 of the gearbox. Then connect the clutch 33 gear 27 with the secondary shaft 6. After that, include in the gearbox first gear. When the first gear is engaged, gear 13 is connected to tubular input shaft 3 by clutch 30 and the clutch 5 is closed. Clutch 5, when it is turned on, transmits engine torque from input shaft 1 to tubular input shaft 3 to gear 13 surrounding tubular primary shaft 3. From gear 13 through gears 14 and 15 engaged with it, the torque is transmitted to the intermediate shafts 9 and 10, respectively. From intermediate shafts 9 and 10 through gears 28 and 29 and gear 27 hooked to them, torque is transmitted to secondary shaft 6 to sun gear 7 connected to it, and from it to carrier 12 of planetary gear 8 and accordingly to output shaft 11 connected to it gear boxes.

To activate the second gear connect the clutch 31 gear 24 with a solid input shaft 2, close the clutch 4 and simultaneously open the clutch 5, providing switching from the first gear to the second gear without breaking the flow of power to the output shaft 11 of the gearbox. In the second gear, the torque from the solid input shaft 2 is transmitted to gear 24 surrounding this shaft. From gear 24 through gears 25 and 26 engaged with it, torque is transmitted to intermediate shafts 9 and 10, respectively. From intermediate shafts 9 and 10 through gears 28 and 29 and gear 27 hooked to them, torque is transmitted to secondary shaft 6 to sun gear 7 connected to it, and from it to carrier 12 and respectively to gearbox output shaft 11 connected to it.

After switching on, the third gear is disconnected by clutch 30 from shaft 3, gear 13, and shifting clutch 30 to another extreme position, coupling gear 3 to shaft 3 and then gear 16. Then turn off clutch 4 and simultaneously turn on clutch 5. In third gear, torque from Clutch 5 is transmitted to the intermediate shafts 9 and 10 through a solid primary shaft 3, gear 16 and gears 17 and 18 meshed with it.

To enable the fourth gear connect the clutch 32 solid primary shaft 2 with the secondary shaft 6, open the clutch 5 and at the same time close the clutch 4. Then the torque from the clutch 4 through the solid primary shaft 2 goes to the secondary shaft 6 and from it through the sun gear 7 and drove 12 of the planetary mechanism 8 is supplied to the output shaft 11 of the gearbox.

When the transition to the fifth gear disconnect the gear 27 of the clutch 33 from the output shaft 6 and connect this gear with the carrier 12 of the clutch 33. Then connect the gear 13 with the tubular primary shaft 3, open the clutch 4 and close the clutch 5. Connect the crown gear 34 of the clutch 35 with the planet carrier 12, and thus with the output shaft 11, blocking the planetary mechanism 8. From the clutch 5, the torque is transmitted through the gear 13 and the gears 14 and 15 meshed with it to the intermediate shafts 9 and 10, and from the intermediate shafts 9 and 10 passed through thorns 28 and 29 and gear 27 hooked to them and then through the carrier 12 of the planetary gear 8 to the output shaft 11 of the gearbox.

The inclusion of the sixth, seventh and eighth gears produced similarly with the inclusion of the second, third and fourth gears, respectively, but with a blocked planetary mechanism. In this case, the eighth gear is direct.

To enable the ninth gear, connect clutch 30 with gear 16 to tubular primary shaft 3, connect gear 24 with a solid primary shaft 2 with clutch 31, open clutch 4 and close clutch 5. On ninth gear, torque from clutch 5 is transmitted through gear 16 and meshed with it gears 17 and 18 on intermediate shafts 9 and 10, from intermediate shafts 9 and 10 torque through gears 25 and 26 and gear 24 hooked to them goes to a solid input shaft 2 and through output shaft 6 connected to the input shaft 2 by coupling 32, and through The locked planetary gear 8 is transmitted to the output shaft 11 of the gearbox.

For the movement of the vehicle back include the first reverse gear. To do this, connect the clutch 31 gear 19 reversing transmission with a solid primary shaft 2 and connect the crown gear 34 of the clutch 35 with the housing 36 of the gearbox. The torque from the clutch 4 is transmitted through a solid input shaft 2, clutch 31, gear 19 reversing transmission, intermediate gears 20 and 21 and gears 22 and 23 meshed with them to intermediate shafts 9 and 10. From intermediate shafts 9 and 10 through gears 28 and 29, the gear 27 engaged with them, and the clutch 33 torque is transmitted to the secondary shaft 6 to the sun gear 7 connected to it, and from there to the carrier 12 of the planetary mechanism 8 and to the transmission shaft 11 connected to it.

The inclusion of a second reverse gear is produced similarly with the inclusion of a first reverse gear, but with a blocked planetary gear.

In the nine-speed gearbox shown in FIG. 2, the gear 37 surrounding the output shaft 38 is made with two spline rims arranged on different sides to allow its alternate connection with the output shaft 38 and with the planet carrier 12 8 individual clutches 39 and 40. The clutch 39 is located next to the clutch 32 in the interval between the gears 24 and 37 on its own hub. The hubs of both sleeves 32 and 39 are fixed on the secondary shaft 38. Moreover, the hubs of these sleeves can be interconnected.

The operation of the transmission shown in figure 2, is similar to the operation of the transmission shown in figure 1.

Created a nine-speed gearbox with two clutches and a planetary mechanism provides the ability to simultaneously activate the clutch 30 of the first gear and the clutch 31 of the reverse gear. For the buildup of the vehicle, the driver issues a signal to close the clutch 5 for moving the vehicle forward, then to close the clutch 4 to move the vehicle backwards. This allows you to quickly change the direction of movement of the vehicle “back and forth”, realizing the so-called “swinging” mode. This mode of operation of the vehicle is especially important when it is used in difficult road conditions with a high probability of slipping. The result is the creation of a nine-speed gearbox with two clutches and a planetary gear, which has extensive operational capabilities.

Claims (4)

1. Nine-speed gearbox with two clutches and a planetary mechanism, containing an input shaft, solid and tubular primary shafts, intermediate shafts with gears attached to them, a secondary shaft with a planetary gear fixed on it, an output shaft connected to the planetary gear carrier, gears surrounding the primary shafts and meshed directly with the gears of the intermediate shafts, gear that surrounds the secondary shaft with the possibility of alternating connection with him and planet planter mechanism, characterized in that it contains a gear that surrounds the solid primary shaft and meshed with intermediate gears engaged with gears of intermediate shafts, a coupling for alternate coupling with a solid primary shaft gears, meshed with intermediate gears, meshed with gears of intermediate shafts, and gears meshed directly with the gears of the intermediate shafts, a coupling for coupling the continuous primary shaft and the output shaft between them, located between the gears surrounding these shafts and directly engaged with intermediate shaft gears. 2. Transmission under item 1, characterized in that the coupling hub, located between the gears surrounding the solid primary shaft and the secondary shaft, is fixed on the secondary shaft. 3. The gearbox according to claim 2, characterized in that the gear that surrounds the secondary shaft is made with two splined rims arranged on different sides for its connection with separate couplings with the secondary shaft and with the planet carrier. 4. The gearbox according to claim 3, characterized in that the coupling for coupling the output shaft with the gear wheel surrounding this shaft is located next to the coupling used for coupling between a solid input shaft and the output shaft.

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