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Electro-hydraulic liquid composite driving mechanism adapting to narrow bent space as well as control system and method

A compound transmission, electromechanical hydraulic technology, applied in the direction of transmission control, transmission, fluid transmission, etc., can solve the problems of limited application space, bloated structure, inconvenient transmission, etc., and achieve high energy utilization efficiency and easy Flexible and changeable effects of transmission and section shape

Inactive Publication Date: 2011-04-27
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the general hydraulic transmission system is equipped with hydraulic pumps, oil tanks, throttle valves, oil filters and other components, resulting in bloated structure, bulky, inconvenient transmission, slow response and high energy consumption, which cannot be applied to occasions with limited space

Method used

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  • Electro-hydraulic liquid composite driving mechanism adapting to narrow bent space as well as control system and method
  • Electro-hydraulic liquid composite driving mechanism adapting to narrow bent space as well as control system and method
  • Electro-hydraulic liquid composite driving mechanism adapting to narrow bent space as well as control system and method

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Embodiment Construction

[0023] Electromechanical hydraulic compound transmission mechanism such as figure 1 As shown, the servo motor 1 drives the lead screw 3 to rotate through the coupling 2, and the lead screw nut pair 8 converts the rotational motion into the linear movement of the piston 4 fixedly connected with it through the screw 7, and the movement of the piston 4 causes the transmission hydraulic cylinder 6 The volume of the left and right chambers changes, and the squeezed hydraulic oil enters the actuator hydraulic cylinder 10 through the oil delivery pipe 911 to push the piston or vane inside to move and drive the load to do work. The hydraulic oil discharged from the executive hydraulic cylinder 10 flows back into the designed transmission hydraulic cylinder 6 through the oil delivery pipe 119 , thus ensuring that the volume of oil in the two hydraulic cylinders remains constant. When the servo motor 1 rotates in the reverse direction, it will drive the piston or vane of the hydraulic ...

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Abstract

The invention relates to an electro-hydraulic liquid composite driving mechanism adapting to a narrow bent space as well as a control system and method, belonging to the technical field of fluid driving devices. The driving mechanism mainly comprises a servo motor, a screw rod nut pair, a piston type driving hydraulic cylinder, an execution hydraulic cylinder, a sealing ring and an oil delivery pipe. A piston of the piston type hydraulic cylinder is fixed on the screw rod nut; the servo motor is rotated by the driving screw rod for enabling the piston to generate axial movement, thereby causing the change of the volumes of a left cavity and a right cavity of the hydraulic cylinder and transmitting the power to the execution hydraulic cylinder through the oil delivery pipe and driving the load to move. Aiming at improving the driving performance and the use safety, the invention also provides an oil path control system comprising a one-way valve, a two-position four-way valve, a bidirectional safety valve, an energy storage oil tank and the like and a system control method. The invention has the advantages of fewer elements, compact structure, small size, high rigidity, quick response, high energy efficiency, high integration of electro-hydraulic liquid, easy transmission, adaption to narrow bent space, and the like.

Description

technical field [0001] The invention relates to an electromechanical-hydraulic compound transmission mechanism, a control system and a method adaptable to a narrow bending space, and belongs to the technical field of fluid transmission devices. Background technique [0002] In some mechanical equipment or weaponry (such as steering gear on missiles), due to space, weight or process limitations, the actuator and the power source cannot be installed together, and the two must be separated and placed in different positions. At this time, how to effectively transmit the power from the power source to the actuator is a technical problem that needs to be solved. Usually there are gear transmission, shaft transmission, belt transmission, connecting rod transmission and other mechanical transmission methods. The disadvantage of these mechanical transmission transmission methods is that the transmission medium is rigid, and the transmission device occupies a large space. When the tr...

Claims

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Application Information

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IPC IPC(8): F16H47/02F16H25/20F16H61/30F15B13/06
Inventor 游有鹏罗福源李成刚
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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