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An Electromechanical Servo Mechanism for Variable Thrust Adjustment of Liquid Rocket Engine

An electromechanical servo and liquid rocket technology, applied in the direction of using feedback control, etc., can solve the problem that the variable thrust engine cannot realize variable thrust adjustment, etc., and achieve the effect of easy installation, simple structure and maintenance, and compact servo mechanism

Active Publication Date: 2018-11-02
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the variable thrust engine in the prior art cannot realize fast variable thrust adjustment

Method used

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  • An Electromechanical Servo Mechanism for Variable Thrust Adjustment of Liquid Rocket Engine
  • An Electromechanical Servo Mechanism for Variable Thrust Adjustment of Liquid Rocket Engine
  • An Electromechanical Servo Mechanism for Variable Thrust Adjustment of Liquid Rocket Engine

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Experimental program
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Effect test

Embodiment 1

[0021] The variable-thrust adjustment electromechanical servo mechanism of the liquid rocket engine in this embodiment includes an actuator 1 and a control system, and the control system controls the operation of the actuator.

[0022] Such as figure 2 As shown, an actuator of a liquid rocket engine variable thrust adjustment electromechanical servo mechanism includes a DC servo motor 101, a motor coupling pin 102, a small gear 103, a large gear 104, a harmonic reducer 105, a large gear connection key 106, Small shaft key 107, small shaft 108, large shaft 109, screw 110, electromechanical servo mechanism docking claw 111, bolt 112 and potentiometer 113.

[0023] The output shaft of the DC servo motor 101 and the pinion 103 are installed coaxially through the motor coupling pin 102; the pinion 103 and the bull gear 104 are both straight bevel gears, and the axes are perpendicular to each other after installation to realize meshing transmission; the bull gear 104, The harmonic...

Embodiment 2

[0026] The difference between this embodiment and embodiment 1 is:

[0027] Such as figure 1 As shown, a liquid rocket engine variable thrust adjustment electromechanical servo mechanism provided in this embodiment includes an actuator 1, an electromechanical servo mechanism docking flange 2, an electromechanical servo mechanism docking screw 3, an electromechanical servo mechanism docking claw 111, an adjusting Device docking gripper 5.

[0028] During installation, the zero mark line of the docking claw 111 of the electromechanical servo mechanism is docked with the zero mark line of the regulator docking claw 5 to ensure that the mechanical zero position is met; the installation zero mark line of the docking flange 2 of the electromechanical servo mechanism It is docked with the zero mark line on the corresponding installation surface of the regulator 6, and at the same time connected through the electromechanical servo mechanism docking screw 3 to ensure that the end face...

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Abstract

The invention belongs to the field of thrust regulation of an engine, and specifically relates to a variable-thrust regulating electromechanical servo mechanism of a liquid rocket engine. The variable-thrust regulating electromechanical servo mechanism comprises an execution mechanism and a control system. The execution mechanism comprises a DC servo motor, a small gear, a large gear, a harmonic reducer, a small shaft, a large shaft, a butt-joint gripper and a potentiometer. The execution mechanism and a regulator are installed. The control system receives a control instruction and a feedback signal, and a gear shaft rotates according to a motion characteristic specified by the instruction. The technical problem that realization of the variable thrust regulation is difficult in the prior art is solved.

Description

technical field [0001] The invention belongs to the technical field of engine thrust adjustment, and in particular relates to an electromechanical servo mechanism for variable thrust adjustment of a liquid rocket engine. Background technique [0002] The large-scale variable thrust adjustment of the liquid rocket engine refers to the control of the thrust and the mixing ratio of the engine, so that it can be varied within a large range according to a certain rule or established procedure, so as to meet the requirements of the flight mission for the power system. Thrust regulation is the key to improving the adaptability of liquid rocket engines. The variable thrust can easily realize the optimal thrust control of the rocket and the design of load reduction in the windy area of ​​the flight, which can greatly improve the carrying capacity. It can effectively control the overload when used in manned flight, and significantly improve the rocket's maneuverability and multi-task ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D3/12
Inventor 赵守军杜滨张文海
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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