An integrated dual-drive gear system and a transmission method

Abstract

An integrated dual-drive gear system and a transmission method, which relate to a gear system and a transmission method. The present invention aims to solve the problems that existing low-speed motors are bulky and heavy, and the drive system composed of high-speed motors and gearboxes occupies a large space. The present invention includes a motor, an integrated dual-drive transmission mechanism, and a load coupling; the motor shaft of the motor is connected to the integrated dual-drive transmission mechanism, and the integrated dual-drive transmission mechanism is connected to the load through the load coupling. The present invention belongs to the technical field of mechanical transmission.

Description

Technical Field

[0001] The present invention relates to a gear system and a transmission method, belonging to the technical field of mechanical transmission. Background Art

[0002] Direct drive of an electric motor means directly driving a load without passing through a transmission device such as a transmission belt, etc., and has the characteristics of a short transmission chain, stable operation, relatively high efficiency, etc., and is widely used in fields such as wind power generation, petrochemical industry, mining machinery, cement, transportation, and lifting equipment.

[0003] Gear transmission refers to a device that transmits motion and power by a pair of gears and works by the meshing of teeth with teeth. It is the most widely used mechanical transmission and power transmission method in modern various equipment, and plays an important role in fields such as automobiles, ships, aerospace, aviation, petrochemical industry, transportation, and mining.

[0004] With the continuous improvement of the usage requirements in various fields, the electric motor is developing towards large torque, high power, high efficiency, and compactness. Especially for low-speed electric motors, they are large in volume, heavy in weight, and have relatively low efficiency in the case of a large speed range, which will cause serious energy waste and bring great inconvenience to use. There is an urgent need for a device with a large speed range, a large load change range, and high efficiency to meet the urgent usage requirements. However, the drive system composed of a high-speed electric motor and a gearbox occupies a large space, and there will be power loss during the transmission process, increasing energy consumption. Summary of the Invention

[0005] The present invention aims to solve the problem that the existing electric motors are not suitable for a large torque, high power, and high efficiency density power system, and further provides an integrated dual-drive gear system and a transmission method.

[0006] The technical solution adopted by the present invention to solve the above problems is: The present invention includes an electric motor, an integrated dual-drive transmission mechanism, and a load coupling; the motor shaft of the electric motor is connected to the integrated dual-drive transmission mechanism, and the integrated dual-drive transmission mechanism is connected to the load through the load coupling.

[0007] Further, the integrated dual-drive transmission mechanism includes a first clutch, a second clutch, a second electric motor, a planetary gear transmission, and a parallel shaft gear transmission. The first electric motor is connected to the parallel shaft gear transmission through the first clutch, and the second electric motor, the planetary gear transmission, the second clutch, and the parallel shaft gear transmission are connected in sequence.

[0008] Further, the planetary gear transmission includes an internal gear ring, a planet carrier, planetary gears, and a sun gear. The output end of the second motor is connected to the sun gear. A plurality of planetary gears are circumferentially and equidistantly arranged on the planet carrier. An internal gear ring coaxial with the sun gear is arranged outside the planetary gears. The planetary gears mesh with the sun gear and the internal gear ring. The planet carrier is connected to the parallel shaft gear transmission through a second clutch.

[0009] The parallel shaft gear transmission includes a pinion and a large gear. The pinion meshes with the large gear. The first motor is connected to the pinion of the parallel shaft gear transmission through a first clutch. The middle part of the planet carrier is connected to the large gear of the parallel shaft gear transmission through a second clutch.

[0010] Further, the integrated dual-drive transmission mechanism further includes a first rotating shaft 31, a second rotating shaft 32, a third rotating shaft 33, a fourth rotating shaft 34, and a fifth rotating shaft 35. The third rotating shaft 33, the fourth rotating shaft 34, and the fifth rotating shaft 35 are coaxially arranged. The second motor is connected to the sun gear through the fifth rotating shaft 35. The fourth rotating shaft 34 is fixedly arranged in the middle of the planet carrier. The third rotating shaft 33 is connected to the large gear. The fourth rotating shaft 34 is connected to the third rotating shaft 33 through a second clutch. The first rotating shaft 31 and the second rotating shaft 32 are coaxially arranged. The first rotating shaft 31 and the third rotating shaft 33 are arranged in parallel. The first motor is connected to the first rotating shaft 31. The pinion is connected to the second rotating shaft 32. The first rotating shaft 31 and the second rotating shaft 32 are connected through a first clutch.

[0011] Further, the integrated dual-drive transmission mechanism further includes a first coupling, a mounting bracket, a third coupling, a second coupling, a first brake 20, and a second brake. The second motor is connected to the fifth rotating shaft 35 through the second coupling. The fourth rotating shaft 34 is connected to the second clutch through the first brake 20. The third rotating shaft 33 is connected to the load through the third coupling. The first motor is connected to the first rotating shaft 31 through the first coupling. The first rotating shaft 31 is connected to the first clutch through the second brake. The first rotating shaft 31, the second rotating shaft 32, the third rotating shaft 33, the fourth rotating shaft 34, and the fifth rotating shaft 35 are all connected to the mounting bracket through bearing seats. The internal gear ring is connected to the mounting bracket. The first motor and the second motor are connected to the mounting bracket through bolts.

[0012] Further, the integrated dual-drive transmission mechanism includes a first planetary gear transmission, a second planetary gear transmission, a first drive, a first clutch, a second drive, and a second clutch. The first drive, the first planetary gear transmission, the first clutch, the second drive, the second clutch, and the second planetary gear transmission are arranged in sequence. The first drive, the first planetary gear transmission, and the first clutch are sequentially connected. The second drive, the second clutch, and the second planetary gear transmission are sequentially connected.

[0013] Further, the first planetary gear transmission includes a first sun gear, first planetary gears, a first internal gear ring, and a first rotating shaft. The first drive is connected to the first sun gear. The first sun gear meshes with the first internal gear ring through the first planetary gears. The first rotating shaft is disposed at the axial center position of the first internal gear ring.

[0014] Further, the second planetary gear transmission includes a second sun gear, second planetary gears, a second planetary carrier, a second internal gear ring, and a second rotating shaft. The rotating shaft of the second drive is a hollow shaft. The second rotating shaft is disposed within the hollow shaft of the second drive. One end of the second rotating shaft is connected to the first rotating shaft through a first clutch. The second rotating shaft passes through the second planetary carrier. The rotating shaft is connected to the second sun gear through a second clutch. Second planetary gears are disposed on the second planetary carrier. The second sun gear meshes with the second internal gear ring through the second planetary gears.

[0015] Further, the integrated dual-drive transmission mechanism further includes a first coupling, a first brake, a second brake, a second coupling, and a mounting bracket. The mounting bracket is connected to the first drive, the first planetary gears, and the second drive. The first drive is connected to the first sun gear through the first coupling. The first rotating shaft is connected to the first clutch through the first brake. The rotating shaft of the second drive is connected to the second clutch through the second brake. The second rotating shaft is connected to the load through the second coupling. The second internal gear ring is fixedly connected to the mounting bracket.

[0016] Further, the first drive and the second drive are detachably connected to the mounting bracket through bolts. The first planetary gear transmission further includes a first planetary carrier. The first planetary carrier is fixedly connected to the mounting bracket. The first planetary carrier is rotatably connected to the first planetary gears. All the wheels in the present invention are gears.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The present invention has a large transmission ratio, high transmission power, and high transmission efficiency.

[0019] 2. The present invention is small in volume, light in weight, and high in power density.

[0020] 3. The present invention can achieve power parallel operation transmission.

[0021] 4. The motor and the gear transmission device of the present invention are integrated, and the integration degree is relatively high.

[0022] 5. The present invention is applicable to power systems with large torque, high power, high efficiency, high power density, etc. The present invention does not need to modify the ship, and can directly replace the low-speed direct-drive motor used on the ship, solve the problems of its large volume and high noise, reduce the ship load, and is beneficial to the overall layout of the ship, and can provide more loading space and loading capacity. Description of the Drawings

[0023] Figure 1 It is the transmission principle diagram of the first structure of the integrated dual-drive transmission mechanism of the present invention;

[0024] Figure 2 It is the transmission principle diagram of the second structure of the integrated dual-drive transmission mechanism of the present invention. Detailed implementation manners

[0025] Detailed implementation manner one: As Figure 1 shown, an integrated dual-drive gear system includes a first motor 1, an integrated dual-drive transmission mechanism, and a load coupling 7; the motor shaft of the first motor 1 is connected to the integrated dual-drive transmission mechanism, and the integrated dual-drive transmission mechanism is connected to a load 6 through the load coupling 7.

[0026] Detailed implementation manner two: As Figure 1 shown, the integrated dual-drive transmission mechanism includes a first clutch 3, a second clutch 9, a second motor 15, a planetary gear transmission I, and a parallel shaft gear transmission II. The first motor 1 is connected to the parallel shaft gear transmission II through the first clutch 3, and the second motor 15, the planetary gear transmission I, the second clutch 9, and the parallel shaft gear transmission II are connected in sequence.

[0027] Detailed implementation manner three: As Figure 1 shown, the planetary gear transmission I includes an internal gear ring 10, a planet carrier 11, planet gears 12, and a sun gear 13. The output end of the second motor 15 is connected to the sun gear 13. A plurality of planet gears 12 are circumferentially and equidistantly arranged on the planet carrier 11. An internal gear ring 10 coaxial with the sun gear 13 is arranged outside the planet gears 12. The planet gears 12 are meshed with the sun gear 13 and the internal gear ring 10. The planet carrier 11 is connected to the parallel shaft gear transmission II through the second clutch 9;

[0028] The parallel shaft gear transmission II includes a pinion gear 4 and a large gear 8. The pinion gear 4 is meshed with the large gear 8. The first motor 1 is connected to the pinion gear 4 of the parallel shaft gear transmission II through the first clutch 3, and the middle part of the planet carrier 11 is connected to the large gear 8 of the parallel shaft gear transmission II through the second clutch 9.

[0029] Detailed implementation manner four: As Figure 1As shown, the integrated dual-drive transmission mechanism further includes a first rotating shaft 31, a second rotating shaft 32, a third rotating shaft 33, a fourth rotating shaft 34, and a fifth rotating shaft 35. The third rotating shaft 33, the fourth rotating shaft 34, and the fifth rotating shaft 35 are coaxially arranged. The second motor 15 is connected to the sun gear 13 through the fifth rotating shaft 35. The fourth rotating shaft 34 is fixedly arranged in the middle of the planet carrier 11. The third rotating shaft 33 is connected to the large gear 8. The fourth rotating shaft 34 is connected to the third rotating shaft 33 through the second clutch 9. The first rotating shaft 31 and the second rotating shaft 32 are coaxially arranged. The first rotating shaft 31 and the third rotating shaft 33 are parallelly arranged. The first motor 1 is connected to the first rotating shaft 31. The small gear 4 is connected to the second rotating shaft 32. The first rotating shaft 31 and the second rotating shaft 32 are connected through the first clutch 3.

[0030] Specific Embodiment Five: As Figure 1 shown, the integrated dual-drive transmission mechanism further includes a first coupling 2, a mounting bracket 5, a third coupling 7, a second coupling 14, a first brake 20, and a second brake 21. The second motor 15 is connected to the fifth rotating shaft 35 through the second coupling 14. The fourth rotating shaft 34 is connected to the second clutch 9 through the first brake 20. The third rotating shaft 33 is connected to the load 6 through the third coupling 7. The first motor 1 is connected to the first rotating shaft 31 through the first coupling 2. The first rotating shaft 31 is connected to the first clutch 3 through the second brake 21. The first rotating shaft 31, the second rotating shaft 32, the third rotating shaft 33, the fourth rotating shaft 34, and the fifth rotating shaft 35 are all connected to the mounting bracket 5 through bearing seats. The internal gear ring 10 is connected to the mounting bracket 5. The first motor 1 and the second motor 15 are connected to the mounting bracket 5 through bolts.

[0031] Among them, the first single-drive method: By engaging the clutch 3 and disengaging the clutch 9, the first motor 1 drives through the parallel-axis gear transmission II to achieve the first motor 1 driving the load 6 alone;

[0032] The second single-drive method: By engaging the clutch 9 and disengaging the clutch 3, the second motor 15 drives through the planetary gear transmission I to achieve the second motor 15 driving the load 6 alone;

[0033] The combined-drive method: The clutch 3 and the clutch 9 are engaged simultaneously to drive the parallel-axis gear transmission II and the planetary gear transmission I to achieve the first motor 1 and the second motor 15 driving the load 6 simultaneously.

[0034] Specific Embodiment Six: As Figure 2As shown, the integrated dual-drive transmission mechanism includes a first planetary gear drive I, a second planetary gear drive II, a first drive 1, a first clutch 8, a second drive 9, and a second clutch 11. The first drive 1, the first planetary gear drive I, the first clutch 8, the second drive 9, the second clutch 11, and the second planetary gear drive II are arranged in sequence. The first drive 1, the first planetary gear drive I, and the first clutch 8 are connected in sequence, and the second drive 9, the second clutch 11, and the second planetary gear drive II are connected in sequence.

[0035] Specific embodiment seven: As Figure 2 shown, the first planetary gear drive I includes a first sun gear 3, first planetary gears 5, a first internal gear ring 6, and a first rotating shaft 23. The first drive 1 is connected to the first sun gear 3. The first sun gear 3 meshes with the first internal gear ring 6 through the first planetary gears 5. The first rotating shaft 23 is arranged at the axial center position of the first internal gear ring 6.

[0036] Specific embodiment eight: As Figure 2 shown, the second planetary gear drive II includes a second sun gear 12, second planetary gears 13, a second planetary carrier 14, a second internal gear ring 15, and a second rotating shaft 24. The rotating shaft 25 of the second drive 9 is a hollow shaft, and the second rotating shaft 24 is arranged inside the hollow shaft of the second drive 9. One end of the second rotating shaft 24 is connected to the first rotating shaft 23 through the first clutch 8. The second rotating shaft 24 passes through the second planetary carrier 14. The rotating shaft 25 is connected to the second sun gear 12 through the second clutch 11. The second planetary gears 13 are arranged on the second planetary carrier 14. The second sun gear 12 meshes with the second internal gear ring 15 through the second planetary gears 13.

[0037] Specific embodiment nine: As Figure 2 shown, the integrated dual-drive transmission mechanism further includes a first coupling 2, a first brake 7, a second brake 10, a second coupling 16, and a mounting bracket 18. The mounting bracket 18 is connected to the first drive 1, the first planetary gears 5, and the second drive 9. The first drive 1 is connected to the first sun gear 3 through the first coupling 2. The first rotating shaft 23 is connected to the first clutch 8 through the first brake 7. The rotating shaft 25 of the second drive 9 is connected to the second clutch 11 through the second brake 10. The second rotating shaft 24 is connected to a load 17 through the second coupling 16. The second internal gear ring 15 is fixedly connected to the mounting bracket 18.

[0038] Specific embodiment ten: As Figure 2 shown, the first drive 1 and the second drive 9 are detachably connected to the mounting bracket 18 by bolts. The first planetary gear drive I further includes a first planetary carrier 4. The first planetary carrier 4 is fixedly connected to the mounting bracket 18 and is rotatably connected to the first planetary gears 5. All the wheels in the present invention are gears.

[0039] Among them, the first independent driving method: the first clutch 8 is engaged, and the second clutch 11 is disengaged to realize the first drive 1 independently driving the load 17;

[0040] The second independent driving method: the second clutch 11 is engaged and the first clutch 8 is disengaged to realize the second drive 9 independently driving the load 17;

[0041] The combined driving method: the clutch 3 and the clutch 11 are engaged simultaneously to realize the first drive 1 and the second drive 9 driving simultaneously and driving the load 17 with coaxial power in a combined manner.

[0042] As mentioned above, it is only the preferred embodiment of the present invention and does not impose any formal restrictions on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention by using the disclosed technical content. However, as long as it does not depart from the content of the technical solution of the present invention and is based on the technical essence of the present invention, any simple modification, equivalent replacement and improvement of the above embodiments still fall within the protection scope of the technical solution of the present invention.

Claims

1. An integrated dual-drive gear system, comprising a first drive (1), an integrated dual-drive transmission mechanism, and a second coupling (16); the motor shaft of the first drive (1) is connected to the integrated dual-drive transmission mechanism, and the integrated dual-drive transmission mechanism is connected to a load (17) through the second coupling (16), characterized in that the integrated dual-drive transmission mechanism includes a first planetary gear transmission (I), a second planetary gear transmission (II), a first drive (1), a first clutch (8), a second drive (9), and a second clutch (11), and the first drive (1), the first planetary gear transmission (I), the first clutch (8), the second drive (9), the second clutch (11), and the second planetary gear transmission (II) are arranged in sequence. The first drive (1), the first planetary gear transmission (I), and the first clutch (8) are connected in sequence, and the second drive (9), the second clutch (11), and the second planetary gear transmission (II) are connected in sequence; The first planetary gear transmission (I) includes a first sun gear (3), a first planetary gear (5), a first internal gear ring (6), and a first rotating shaft (23). The first drive (1) is connected to the first sun gear (3), the first sun gear (3) meshes with the first internal gear ring (6) through the first planetary gear (5), and the first rotating shaft (23) is arranged at the axial center position of the first internal gear ring (6); The second planetary gear transmission (II) includes a second sun gear (12), a second planetary gear (13), a second planetary carrier (14), a second internal gear ring (15), and a second rotating shaft (24). The rotating shaft (25) of the second drive (9) is a hollow shaft, and the second rotating shaft (24) is arranged inside the hollow shaft of the second drive (9); one end of the second rotating shaft (24) is connected to the first rotating shaft (23) through the first clutch (8), the second rotating shaft (24) passes through the second planetary carrier (14), the rotating shaft (25) is connected to the second sun gear (12) through the second clutch (11), the second planetary carrier (14) is provided with the second planetary gear (13), and the second sun gear (12) meshes with the second internal gear ring (15) through the second planetary gear (13); The integrated dual-drive transmission mechanism further includes a first coupling (2), a first brake (7), a second brake (10), a second coupling (16), and a mounting bracket (18). The mounting bracket (18) is connected to the first drive (1), the first planetary gear (5), and the second drive (9). The first drive (1) is connected to the first sun gear (3) through the first coupling (2), the first rotating shaft (23) is connected to the first clutch (8) through the first brake (7), the rotating shaft (25) of the second drive (9) is connected to the second clutch (11) through the second brake (10), the second rotating shaft (24) is connected to the load (17) through the second coupling (16), and the second internal gear ring (15) is fixedly connected to the mounting bracket (18); The first drive (1) and the second drive (9) are detachably connected to the mounting bracket (18) by bolts; the first planetary gear transmission (I) further includes a first planet carrier (4), the first planet carrier (4) is fixedly connected to the mounting bracket (18), and the first planet carrier (4) is rotatably connected to the first planetary gear (5).

Images