SU1103008A1 - Current generator starter drive - Google Patents

Abstract

STARTER-GENERATOR DRIVE for an internal combustion engine, comprising a housing, a planetary gear reducer made in the form of sun and ring gears and satellites fixed in the carrier, the carrier through the output shaft connected to the crankshaft of the engine, and the sun gear with starter generator and an adapter. changes in the transmission ratio, ensure the connection of the sun gear with the ring gear in the generator mode, and the ring gear with the housing in the stator gear, which differs in that rigidity of work by reducing shock loads, the gear ratio device is made in the form of two belt brakes with pulleys, so that the pulley of one brake is fixed on the ring gear and its belt is fixed on the case, and the pulley of the other brake is fixed on the sun gear and its belt is on crown gear.

Description

The invention relates to a motor structure, in particular, to a starter-generator and can be used on an internal combustion engine, in cases where the starter power is close to the power of the generator and it is expedient to combine these two devices into one electrical unit-starter-generator. A known drive starter-generator for an internal combustion engine, comprising a housing, a planetary gear reducer, embodied in the form of sun and ring gears and satellites fixed in the carrier. The drive through the output shaft is connected to the crankshaft of the engine, and the sun gear is connected to the engine starter generator. The drive contains a device for changing the gear ratio, which provides the connection of the solar gear with the ring gear in the generating mode and the ring gear with the housing in the stator mode, fulfilled in the form of ratchet and roller clutches: free running l. The disadvantage of this drive is its hard work, expressed in significant shocks that occur during the switching process of the mechanism. : The purpose of the invention is to reduce the stiffness of the work by reducing the shock loads. The goal is achieved by the fact that, in a starter-generator drive for an internal combustion engine, comprising a housing, a planetary gear reducer made in the form of sun and ring gears and satellites fixed in the carrier, the carrier through the output shaft is connected to the crankshaft of the engine, and the sun gear is with the core of the starter-generator, and a device for changing the front of the exact ratio, ensuring the connection of the sun gear with the ring gear in the generating mode and the ring gear with the housing in the stator gear IME, gear ratio change device is a brake with two belt pulleys so that the pulley odnogo.tormoza secured to the ring gear and its tape- on the housing, and the other pulley fixed to brake the sun gear and the tape - on the ring gear. FIG. Figure 1 shows the kinematic drive circuit; in fig. 2 - drive, length ::: th section. The drive of the starter-generator contains a stationary body 1 of a planetary gear reducer 2 and a device for changing the distribution ratio, made in the form of belt brakes 3 and 4 with pulleys 5 and 6. Gliding gear 2 consists of sun gear 7, ring gear 8, drove 9 and fixed it has axles 10 on the axles. The output drive shaft 11 connects the carrier 9 to the engine crankshaft, and the shaft 12 connects the sun gear to the starter generator. The pulley 5 of the brake 3 is fixed on the ring gear 8, and its belt 13 is fixed to the housing 1 via the springs 14. The pulley 6 of the brake 4 is fixed on the sun gear 7, and its tape 15 is fixed on the ring gear 8 via the springs 16. The starter-generator drive works I follow the GI way. In the stater mode, the sun gear 7 drives the rotation through the satellites 10, the ring gear 8 to the output shaft 11, and then to the crankshaft of the engine, ensuring its rotation. In this case, the ring gear 8 is stopped by the belt brake 3, since the moment of resistance applied to the output shaft 11 from the engine crankshaft and the reactive moment on the ring gear coincide. In this case, the planetary gearbox lowers the speed from the shaft 12 to the output shaft 11. At this time, the brake 4 releases the pulley 6, allowing it to rotate freely. After starting the engine, the output shaft 11 becomes the leading one and the drive goes into generator mode by changing the gear ratio of the gearbox. In this case, the moment of resistance is applied to the shaft 12, which is connected to the shaft of the starter generator core. In this case, the brake belt 13 releases the pulley 5, and the belt 15 on the pulley 6 is closed. As a result, all gears of the gearbox begin to rotate as one link, i.e. with one common speed, the gearbox changes its gear ratio. The proposed drive starter-generator reduces the rigidity of its work by reducing shock loads.

311030084

The resulting stiffness of the operation of the old hardness of the tera-generator from the stator mode will affect the reliability and durable of the generator and vice versa. Reduce the starter-generator.

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Claims (1)

A STARTER-GENERATOR DRIVE for an internal combustion engine, comprising a housing, a planetary gear reducer made in the form of sun and ring gears and satellites fixed in the carrier, the carrier through the output shaft being connected to the engine crankshaft and the sun gear to the starter armature, and device for changing the gear ratio, providing a connecting connection between the sun gear and the crown gear in the generator mode, and the ring gear with the housing in the stator, revealing that, in order to reduce hard In order to work by reducing shock loads, the gear ratio change device is made in the form of two belt brakes with pulleys, so that the pulley of one brake is fixed to the ring gear and its belt to the body, and the pulley of the other brake is fixed to the sun gear and its belt to crown gear. 1 1103008