Starting motor

Abstract

The invention provides a starting motor and relates to a motor. At present, an industry typical starting motor is worn quickly, has low reliability, is easy to be out of operation and can produce a big noise. The starting motor provided by the invention comprises a motor and is characterized by also comprising a driving assembly axially connected with the motor, a torque converter which is connected with the driving assembly to rotate along with the driving assembly, a torque output piece one end of which is connected to the torque converter, an unfolding assembly used for unfolding the torque output piece, a return spring which is arranged between the torque converter and the torque output piece and causes the torque output piece to reset and an engine flywheel which can collide with the torque output piece to cause the torque output piece to drive the engine flywheel to rotate, wherein the engine flywheel is provided with a pushed part, and the torque output piece changes a rotating angle and increases length extending outside the torque converter by virtue of the unfolding assembly, so that the torque output piece collides with the pushed part of the engine flywheel to drive the engine flywheel to rotate. According to the technical scheme adopted by, the structure is simple, the torque output piece can be meshed with the engine flywheel accurately and reliably, and noise during operation can be effectively reduced.

Description

technical field [0001] The invention relates to a starter motor. Background technique [0002] At present, typical starter motors in the industry (see attached figure 1 ) The structure is that the output end of the motor 1 has a gear 4 and the driving piece 2 through the spline 3. When the motor 1 starts, the moment of inertia is provided to the gear 4 and the driving piece 2, and the gear 4 and the driving piece 2 are ejected through the spline 3 and the engine flywheel Engaging, relying on the friction of the rubber attached to the drive plate 2 and the gear 4 to transmit torque, thereby starting the engine. After the engine starts, the motor is powered off, and the gear 4 and the drive plate 2 are pushed back to the original position by the reaction force of the spring 5 and the engine flywheel to the gear 4 and the drive plate 2, and the motor completes a cycle of work. There are four problems in this typical structure. Because the position of the motor gear and the en...

AI Technical Summary

Problems solved by technology

There are four problems in this typical structure. Because the position of the motor gear and the engine flywheel is random, it often happens that the end face of the motor gear bears against the end face of the engine flywheel and cannot mesh normally. This is the most common and most common situation in the industry. Difficult to solve. Furthermore, even if the meshing is normal, the motor gear and the engine flywheel move at a high speed, causing the motor gear and the engine flywheel to wear quickly, with low reliability and easy failure. The contact surface of the rubber attached to the drive plate and the gear It is easy to enter grease or dust, causing the drive mechanism to slip or the torque is small, and the engine cannot be started. Finally, the high-speed motion between the motor gear and the engine flywheel causes a lot of noise

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