Rack driving type dished magneto-rheological damper

Abstract

The invention discloses a rack driving type dished magneto-rheological damper comprising a double-faced rack (9) with a pulling rod (93), a force transmitting guide frame (2), a first passive gear (81), second passive gears (82) (the code numbers in the figure both are 81), a first working disk cavity, a second working disk cavity, a first U-shaped electromagnet (31) and a second U-shaped electromagnet (32). According to the rack driving type dished magneto-rheological damper, vibrating linear motion can be transformed into rotating of moving disks, and the rotating moving disks cut a magneto-rheological fluid to produce damping force. Meanwhile, the sizes of the external electromagnets are not limited, a large magnetic field can be provided, the adjustable coefficient of the magneto-rheological damper can be increased, and application and popularization of the magneto-rheological damper are facilitated.

Description

technical field [0001] The invention relates to a disc-shaped magneto-rheological damper which can be used in the fields of civil engineering, machinery and aviation, in particular to a rack-driven disc-shaped magneto-rheological damper. Background technique [0002] With the development of the country and the improvement of living standards, important structures such as high-rise buildings, high-rise structures, and long-span structures are increasing day by day. Under the action of dynamic loads (such as strong wind and earthquake), these structures will generate relatively large vibrations, which will affect the normal use and safety of the structure. How to reduce the wind vibration or earthquake response of the structure is a frontier and important topic. Structural vibration control is a new type of anti-vibration / seismic measure, which consumes or isolates vibration / vibration energy by setting vibration reduction / vibration / vibration / vibration / seismic devices in the st...

AI Technical Summary

Problems solved by technology

If the size of the cylinder is reduced, a sufficiently large external magnetic field cannot be obtained, which will affect the maximum output and adjustable coefficient of the magnetorheological damper. This phenomenon is especially serious on small-sized magnetorheological dampers.

In order to solve this problem, one is to improve the magnetic permeability of the magnetorheological fluid. With the existing technology, the magnetic permeability of the magnetorheological fluid is generally improved by improving the magnetic permeability of the magnetic particles. This method will cause the magnetic flow The anti-sedimentation performance of the variable fluid decreases, thereby affecting the working performance of the magnetorheological damper in long-term service; another way is to increase the content of magnetically conductive particles, which will increase the zero-field viscosity of the magnetorheological fluid and affect Adjustable Coefficient of Magnetorheological Damper

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