Gyrating type electro-hydraulic driver and control method

A drive and rotary technology, applied in the direction of servo meter circuit, fluid pressure actuation device, fluid pressure actuation system components, etc., can solve the problems of high cost, large size of rotary drive, large power consumption, etc., and achieve simple structure and composition , Small size, easy to integrate

Active Publication Date: 2018-10-19
YANSHAN UNIV
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Problems solved by technology

[0005] The present invention provides a rotary electro-hydraulic driver and its control method, aiming to solve the technical problems of large volume / power consumption and high cost of the rotary driver in the prior art

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  • Gyrating type electro-hydraulic driver and control method
  • Gyrating type electro-hydraulic driver and control method
  • Gyrating type electro-hydraulic driver and control method

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Embodiment Construction

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations...

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Abstract

The invention provides a gyrating type electro-hydraulic driver and a control method, and belongs to the technical field of fluid transmission and control. The gyrating type electro-hydraulic driver comprises a servo motor, a bidirectional variable hydraulic pump which is arranged on an output shaft of the servo motor, a bidirectional hydraulic motor, a signal acquiring unit and a control unit, wherein two ends of two oil channels of the bidirectional hydraulic motor are correspondingly connected to a first connector and a second connector of the bidirectional variable hydraulic pump; the control unit is used for receiving a signal fed back by the signal acquiring unit and is correspondingly connected to the servo motor and the bidirectional variable hydraulic pump to form two independentcontrol closed loops, thus realizing two-stage control of the bidirectional hydraulic motor. According to the gyrating type electro-hydraulic driver and the control method, the servo motor drives thebidirectional variable hydraulic pump to realize rotating output of the bidirectional hydraulic motor; the size is small; the power consumption is low; and moreover, the two-stage adjusting of the bidirectional hydraulic motor is achieved through the two independent control closed loops of the control unit, and thus the cost is not obviously increased while the output range of the bidirectional hydraulic motor is expanded.

Description

technical field [0001] The invention belongs to the technical field of fluid transmission and control, and more specifically relates to a rotary electro-hydraulic driver and a control method. Background technique [0002] The hoisting mechanism of the crane is one of the most important actuators of the crane. In order to adapt to various working conditions, such as low-speed heavy load, high-speed light load, and fine hoisting requirements, the hoisting mechanism is required to have good operability and micro-movement. [0003] The existing hoisting mechanisms mainly include motor drive and electro-hydraulic drive. The motor drive is composed of key components such as a drive motor and a reducer. Under heavy load conditions, the output torque of the drive motor and reducer is large. The volume is large, the cost is high, and the control is complicated, so it is impossible to realize the combined control of multiple slewing systems. [0004] In the transmission electro-hydra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/08F15B13/04F15B21/02B66D1/08
CPCF15B11/08F15B13/04F15B21/02B66D1/08F15B2211/20561F15B2211/20546F15B2211/20515F15B2211/7058
Inventor 赵静一李文雷茹强司少朋冯轩王少晨刘贝赵伟哲刘赛起
Owner YANSHAN UNIV
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