Electric steering engine locking device

Abstract

The invention belongs to the field of steering engine locking and particularly relates to an electric steering engine locking device. According to the technical scheme, the electric steering engine locking device comprises a fixed plate (1), a fastening screw (2), a connecting block (4), a friction plate (5), an armature (6), a coil (7), a case (8), and springs (9). The coil (7) and the circular armature (6) are disposed in the case (8). A motor shaft of an electric steering engine is connected with a locking device through the connecting block (4), the friction plate (5) and a central through hole of the fixed plate (1). When the coil (7) is not powered, the armature (6) and the friction plate (5) are compressed through the springs (9) and the motor shaft (3) is compressed and locked through the connecting block (4). When the coil (7) is powered, the armature (6) is separated from the friction plate (5) by electromagnetic force and the connecting block (4) is loosened. Automatic unlocking is achieved by power of the steering engine with no need of additional control signals, and the electric steering engine locking device has the advantages of operational reliability, simplicity in control and operation, easiness in installation and the like.

Description

technical field [0001] The invention belongs to the field of steering gear locking, and in particular relates to an electric steering gear locking device. Background technique [0002] The precision-guided bomb has a short working time, a small installation space for the servo system, strict weight requirements, and needs to withstand a large moment. Under such conditions, improving the reliability of the steering gear locking and unlocking has become a factor that must be considered in the design. [0003] In the past, the steering gear was unlocked by receiving a signal from the flight control device to unlock the steering gear, and the signal lasted until the end of the flight. If the unlocking signal of the controller is sent abnormally, if it is not handled in time, it will not only burn out the controller, but also affect the flight of precision-guided bombs, and even endanger the safety of on-hook, which seriously restricts the improvement of equipment reliability. ...

AI Technical Summary

Problems solved by technology

If the unlocking signal of the controller is sent abnormally, if it is not handled in time, it will not only burn out the controller, but also affect the flight of precision-guided bombs, and even endanger the safety of on-hook, which seriously restricts the improvement of equipment reliability.

[0004] At the same time, the installation space in the precision-guided bomb is narrow, and the motor and the locking device are designed as separate parts. When installing on the steering gear, another connecting frame is required to connect the locking device and the motor, which increases the radial and axial dimensions and causes The installation space is tight and the process is complicated, which affects the overall performance of the precision-guided bomb

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