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Pump-controlled hydraulic transmission system applied to exoskeleton robot

An exoskeleton robot and hydraulic transmission technology, which can be applied to fluid pressure actuation devices, mechanical equipment, servo motors, etc., and can solve the problems of high ineffective energy consumption and other issues

Pending Publication Date: 2018-09-04
GUIYANG HAIZHILI HYDRAULIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The working pressure requirements of each actuator are different at the same time, and the working pressure requirements of the same actuator are also different at different times (the change of the angle of the mechanical arm will lead to the change of the force of the cylinder), but the pressure of the hydraulic oil source is always adapted to the highest pressure. Pressure demand, which leads to the total output power of the hydraulic oil source being much greater than the sum of the power required by the actuator under most working conditions, resulting in high ineffective energy consumption

Method used

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  • Pump-controlled hydraulic transmission system applied to exoskeleton robot
  • Pump-controlled hydraulic transmission system applied to exoskeleton robot
  • Pump-controlled hydraulic transmission system applied to exoskeleton robot

Examples

Experimental program
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Effect test

Embodiment 1

[0037] combined with figure 1 Shown is the first embodiment in which the present invention is applied to drive the joint oil cylinder 7 of an exoskeleton robot. The scheme includes a servo motor 1, a two-way two-way hydraulic pump 2, a flow matching valve 4, a balance valve 5, a booster function switching valve 6, an oil cylinder 7, and an oil storage container 3.

[0038]The servo motor 1 drives the two-way two-way hydraulic pump 2 that rotates in two directions. The first oil outlet A2 of the flow matching valve and the second oil outlet B2 of the flow matching valve 4 are connected to the oil ports on both sides of the two-way hydraulic pump 2 respectively. The flow matching valve charge oil drain port T2 is connected to the oil storage container 3 .

[0039] The oil cylinder 7 adopts double-acting oil cylinder, the balance valve 5 has a one-way valve 4b, the balance valve 5 is installed on the rodless cavity or the rod cavity of the oil cylinder 7, and the booster functio...

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Abstract

The invention discloses a pump-controlled hydraulic transmission system applied to an exoskeleton robot. The pump-controlled hydraulic transmission system comprises a servo motor, a bidirectional hydraulic pump, a flow match valve, a power-assisted function switch valve, an oil cylinder and an oil container. The servo motor is adopted to drive the bidirectional-rotation hydraulic pump, reversing and speed adjusting of an executing mechanism are achieved through adjustment of the motor rotation direction and rotation speed, the demand pressure of the executing mechanism is matched with the workpressure of the hydraulic pump in real time, unavailable energy consumption is small, and the transmission efficiency can be improved substantially.

Description

technical field [0001] The invention relates to the technical field of mechanical engineering, and more specifically relates to a pump-controlled hydraulic transmission system applied to an exoskeleton robot. Background technique [0002] Exoskeleton robot is a human-machine collaboration device worn on the human body, which has broad application prospects in military, logistics, emergency rescue, and assisting the disabled. Many institutions at home and abroad have carried out research and development of exoskeleton robots and obtained phased research results. [0003] According to the transmission form, there are three types of exoskeleton robots: electric transmission (motor-driven reducer or screw), hydraulic transmission (hydraulic oil-driven cylinder), and pneumatic transmission (compressed air-driven cylinder). Among them, hydraulic transmission has become the mainstream transmission scheme for heavy-duty (load-bearing) exoskeleton robots due to its high power densit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/08F15B13/02
CPCF15B11/08F15B13/02
Inventor 侯刚王海波曹雄曹明远杨毛王佩瑾
Owner GUIYANG HAIZHILI HYDRAULIC CO LTD
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