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Toughness changing gravity compensating mechanism for magnetic rheological liquid

A magneto-rheological fluid and gravity compensation technology, which is applied in the direction of fluid pressure actuators, mechanical equipment, fluid clutches, etc., can solve the problems of invariable stiffness and difficult control, and achieve continuous viscosity changes, easy control, and rapid control Effect

Inactive Publication Date: 2010-09-29
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention has the characteristics of simple structure, can conveniently control the mechanism through MR fluid and respond very quickly, and the stiffness of the mechanism can be continuously variable so that the stiffness can be adjusted according to the specific application environment. Control and other issues

Method used

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  • Toughness changing gravity compensating mechanism for magnetic rheological liquid
  • Toughness changing gravity compensating mechanism for magnetic rheological liquid

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Embodiment Construction

[0010] Embodiments of the present invention are described in detail below in conjunction with accompanying drawings: the present embodiment is implemented under the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the scope of protection of the present invention is not limited to Examples described below.

[0011] Such as figure 1 As shown, this embodiment includes: a piston rod 1, a ball screw 2, a nut 3 paired with the ball screw, a moving piece 4 of a magneto-rheological fluid transmission mechanism, a stationary piece 5 of a magneto-rheological fluid transmission mechanism, a magnetic flow Variable liquid 6, cylinder block 7, housing 8, piston rod 1 and magneto-rheological fluid power transmission mechanism static plate 4 are fixed on the housing 8, magneto-rheological fluid power transmission mechanism moving plate 4 is paired with the ball screw The nut 3 is connected, the...

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Abstract

The invention relates to a variable stiffness gravity compensation mechanism of a magnetic rheological fluid and belongs to the field of a mechanical technology. The mechanism comprises a piston rod, a ballscrew, a nut paired with the ballscrew, a movable plate of a magnetic rheological hydraulic transmission mechanism, a static plate of the magnetic rheological hydraulic transmission mechanism, the magnetic rheological fluid, a cylinder body and a shell body; the piston rod and the static plate of the magnetic rheological hydraulic transmission mechanism are fixed on the shell body; the movable plate of the magnetic rheological hydraulic transmission mechanism is connected with the nut; the magnetic rheological liquid is formed between the movable plate and the static plate of the magnetic rheological hydraulic transmission mechanism; and the ballscrew is connected with the cylinder body through a rolling bearing. The variable stiffness gravity compensation mechanism can realize continuous variable rigidity, thereby carrying out stiffness adjustment according to a specific application environment; simultaneously, the variable rigidity gravity compensation mechanism can conveniently utilize on-off power to control the mechanism through the magnetic rheological fluid in order that the mechanism rapidly responds, lightens the whole weight in the structure and has concise and tidy appearance.

Description

technical field [0001] The invention relates to a device in the technical field of mechanical engineering, in particular to a magneto-rheological fluid (MR) variable stiffness gravity compensation mechanism. Background technique [0002] Gravity compensation mechanism is widely used in aerospace, mechanical engineering, medicine, oil and gas development and other fields. Usually, when moving an object in the gravitational field, by using a gravity compensation mechanism to offset part of its gravity and reduce the gravitational moment, the force to operate the object is relatively small, thereby saving energy. At the same time, the safety of operation can also be improved through gravity compensation. At present, gravity compensation mechanisms generally use counterweights, permanent magnets or mechanical springs to compensate for gravity. The outstanding disadvantage of using counterweights to compensate for gravity is that the mass of the entity is added to the mechanism...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D37/00F15B15/02
Inventor 顿向明闻靖顿向勇钟仁全周明
Owner SHANGHAI JIAOTONG UNIV
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