Steering engine for underwater vehicle

Abstract

The invention discloses a steering engine for an underwater vehicle. A speed reducer, a lead screw nut, a resistive position sensor and a connector are located on one side of the speed reducer; a lead screw and a nut are coaxially arranged; the steering engine has a compact structure, and the mounting size of the steering engine is reduced. A travel insert block is embedded into the middle part of the lead screw; when the lead screw extends out for a certain distance, the travel insert block is tightly attached to the inner wall of an outer end cover to limit the extension distance of the lead screw; at one end of the lead screw matched with a drive nut, a blind hole in the drive nut has certain depth; and when the lead screw retreats, a travel boss at the end of the lead screw close to the nut is tightly attached to the end surface of the inner hole of the drive nut to limit the retreat distance of the lead screw. According to the invention, through a reverse travel self-locking of a lead screw nut mechanism, the steering engine realizes firm mechanical self-locking to maintain the stability of a rudder surface. The adopted hollow cup DC (direct current) motor has small rotational inertia, the lead screw nut mechanism is supported and guided by a deep groove ball bearing, a ball and a linear bearing, the frictional resistance is reduced, and the response speed of the steering engine is increased.

Description

technical field [0001] The invention relates to a steering gear, which is specifically applied to an underwater vehicle platform. Background technique [0002] Underwater vehicles are more and more widely used in various ocean activities. As the attitude adjustment mechanism of underwater vehicles, the steering gear plays a key role in the performance of the vehicle. According to relevant literature, there are few steering gears currently used in underwater vehicles, and traditional steering gears are difficult to apply to underwater vehicles. The main disadvantages are as follows: (1) The steering gear is installed inside the underwater vehicle The space is small, the impact vibration is large, the size of the traditional steering gear is large under the condition of satisfying the output power, and it is difficult to meet the requirements of anti-shock vibration (2) does not have a reliable self-locking function, and the rudder surface of the underwater vehicle withstands ...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies in the prior art that the size of the steering gear is large, it is difficult to meet the requirements of anti-shock vibration, or the reliability is poor, or the response time is long, and it cannot well meet the needs of real-time adjustment of the attitude of underwater vehicles , the present invention proposes a small steering gear for underwater vehicles

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