Ultra-compact gearbox and generator integrated structure

[0020] Example

[0021] see Figure 1 to Figure 3 , the present invention provides a technical solution: an ultra-compact gearbox and generator integrated structure, including a gearbox body 2 and a generator body 3, one end of the gearbox body 2 is placed inside one end of the generator body 3, the gear box One end of the box body 2 is fixed with a rear end cover 23 of the gearbox. Through the designed rear end cover 23 of the gearbox and the generator body 3, the rear end cover 23 of the gearbox must bear the load of the secondary planetary carrier 22 and the generator. At the same time, the bearing structure of the generator body 3 adopts a single bearing structure, so that the generator rotor 32 completely acts on the rear end cover 23 of the gearbox, ensuring that the generator rotor 32 is coaxial with the gearbox output shaft 24, The gearbox and some parts of the generator are omitted, which reduces the weight, cost and load. One end of the rear end cover 23 of the gearbox is fixed with a secondary planetary carrier 22, and one end of the inner end of the gearbox body 2 is provided with a low-speed shaft to generate electricity. The interior of the machine body 3 is provided with a stator assembly 31. Through the designed stator assembly 31 of the generator, the stator assembly 31 is connected to the middle body of the gearbox body 2 through fasteners, so that the center of gravity of the generator is further forward, and the structure is more The generator rotor 32 is arranged inside the stator assembly 31, one end of the generator rotor 32 is fitted with the rear end cover 23 of the gearbox, the inside of the generator rotor 32 is arranged with a bearing outer ring 33, and the inner side of the bearing outer ring 33 is arranged There is a bearing inner ring 34, the ends of the bearing inner ring 34 and the bearing outer ring 33 are provided with a drive cover plate 36, the inner center of the gearbox body 2 is provided with a gearbox output shaft 24, and one end of the gearbox output shaft 24 is located Inside the bearing inner ring 34 , the gearbox output shaft 24 and the drive cover 36 are fixed by screws, the end of the generator body 3 is connected with a tube bearing 38 , and the inside of the gearbox output shaft 24 is penetrated by a threading pipe 1 , and the threading pipe One end of 1 is installed on the low-speed shaft, the other end of the threading pipe 1 is installed on the tube bearing 38, a plurality of bosses are fixed on the inner side of the rear end cover 23 of the gearbox, and a brake 37 is installed on the bosses. The output shaft 24 and the brake 37, the gearbox output shaft 24 can not only transmit torque, but also realize the braking effect through the brake 37. The outer side is also designed with a toothed structure, which is convenient for later electric cranking.

[0022] In this embodiment, preferably, a bearing retaining ring 35 is provided between the bearing outer ring 33 and the drive cover plate 36 , and the designed bearing retaining ring 35 is connected with the rear end cover 23 of the gearbox by screws, and the bearing inner ring 34 is connected with screws. Compression is carried out to form a whole, the bearing retaining ring 35 is connected with the rear end cover 23 of the gearbox by screws, the bearing inner ring 34 and the bearing outer ring 33 are sleeved on the rear end cover 23 of the gearbox, and the bearing inner ring 34 and the bearing Rollers are arranged between the outer ring 33, the drive cover 36 and the gearbox output shaft 24 are connected by screws, and the designed drive cover 36 and the gearbox output shaft 24 are connected by screws, so as to drive the generator rotor. 32 rotates, and the longitudinal section of the drive cover 36 is a circular structure, the longitudinal section of the gearbox output shaft 24 is a T-shaped structure, and one end surface of the gearbox output shaft 24 is provided with a tooth slot, and the gearbox output shaft 24 The outer wall of the other end is provided with a spline.

[0023] The working principle and use process of the present invention: when the present invention is installed, the rear end cover 23 of the gear box is installed on one end of the gear box body 2. After the installation of the rear end cover 23 of the gear box is completed, the gear box body 2 is turned over to make the axis perpendicular to the On the ground, put the generator rotor 32 into the gear box body 2, fix it with tooling, heat the bearing inner ring 34, and together with the rollers and the bearing outer ring 33, put it into the gear box rear end cover 23, and connect the bearing through the connecting piece. The retaining ring 35 is fixed with the rear end cover 23 of the gearbox and presses the inner ring 34 of the bearing to form an integral body. The lower part of the brake 37 is fixed on the boss, and the output shaft 24 of the gearbox is placed vertically to make the splines mesh correctly. The upper part of the brake 37 is connected with the lower part through the connecting piece, and then the driving cover plate 36, the bearing outer ring 33 and the generator rotor 32 are connected rigidly in rotation, and finally the gearbox output shaft 24 is connected with the driving cover plate 36. Through the cooperation and assembly of the gearbox rear end cover 23, the gearbox body 2 and the generator body 3, the connection structure is more compact, the weight is saved, and the cost is reduced. The generator rotor 32 is directly installed on the rear end cover 23 of the gearbox, The centering requirements can be completely guaranteed by machining, which saves the generator centering link in the assembly process and saves assembly man-hours. At the same time, the generator body 3 has been integrated with the gearbox body 2, and its center of gravity is forward, so the gear can be omitted. The box torque arm is directly connected to the bearing seat through the front end connecting cover.