Non-similar redundancy electric steering device

A non-similar and redundant technology, applied in the field of dual-redundant electro-hydraulic system steering gear, can solve the problems of traditional mechanism efficiency, increased system weight and volume, and inconvenient installation and maintenance of oil leakage, achieving convenient layout, The effect of high system reliability, simple and reliable structure

Inactive Publication Date: 2016-12-28
BEIHANG UNIV
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Problems solved by technology

This traditional mechanism makes the entire carrier full of hydraulic pipelines, which increases the weight and volume of the system; at the same time, problems such as "running, leaking and oil leakage" make the traditional mechanism low in efficiency and high in consumption; the traditional system is also inconvenient for device installation and maintenance , high production and maintenance costs and other disadvantages
[0003] At present, the new electro-hydraulic servo me

Method used

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  • Non-similar redundancy electric steering device

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Embodiment Construction

[0019] Such as figure 1 As shown, the present invention includes a set of dual redundancy integrated electric hydrostatic servo mechanism and a set of dual redundancy drive controller. The servo mechanism is installed between the fulcrum and the connection point of the load, and drives the load to move according to the command. Among them, the servo hydraulic pump in the electro-hydraulic pump servo mechanism 1 is embedded in the servo motor, and the flow required by the system is adjusted by the rotation speed and steering of the servo motor; the rotation speed and displacement of the hydraulic pump in the dual variable motor pump source servo mechanism 4 can be adjusted simultaneously (EHA-VPVM), the output flow is controlled by the combination of speed and displacement. The control unit adopts DSP+CPLD / PLC non-similar redundancy control mode, which can simultaneously drive dual redundancy servo mechanisms. It receives instructions from the console, performs control algorit...

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Abstract

Provided is a non-similar redundancy electric steering device. The advanced power-by-wire technology and volumetric speed control principle are adopted, and two sets of motors drive a hydraulic pump system to directly drive a double-redundancy series cylinder. The device comprises a set of double-redundancy electro-hydrostatic servo mechanism (2) and a set of double-redundancy driving controller (7), wherein the double-redundancy electro-hydrostatic servo mechanism (2) is composed of an electro-hydraulic pump servo mechanism (1) and a double-variant motor pump source servo mechanism (4), and the double-redundancy driving controller (7) is composed of a control unit (8) and a driving unit (9); the electro-hydraulic pump servo mechanism (1) comprises an electro-hydraulic pump (10) and accessories, and the double-variant motor pump source servo mechanism (4) comprises a servo motor (6), a two-way variable pump (5) and accessories. The device can replace an original servo valve-controlled steering engine arranged on a vehicle to achieve high-reliability and high-power telex servo working and has the advantages of being low in energy consumption, small in size and weight and easy to install and maintain.

Description

technical field [0001] The invention relates to a steering gear for a steering gear, in particular to a steering gear for a dual-redundancy electro-hydraulic system. Background technique [0002] Generally, steering gears that control the movement attitude of aircraft, ships, rockets and other carriers generally adopt high-power servo devices with centralized oil source and servo valve control. This traditional mechanism makes the entire carrier full of hydraulic pipelines, which increases the weight and volume of the system; at the same time, problems such as "running, leaking and oil leakage" make the traditional mechanism low in efficiency and high in consumption; the traditional system is also inconvenient for device installation and maintenance , high production and maintenance costs and other shortcomings. [0003] At present, the new electro-hydraulic servo mechanisms researched to address the above shortcomings are basically in the theoretical research stage, and a ...

Claims

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Application Information

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IPC IPC(8): F15B9/00
CPCF15B9/00
Inventor 付永领阳加远叶茂吉韩旭
Owner BEIHANG UNIV
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