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Magneto-rheological damper of automobile engine suspension system

A technology for automotive engine and mounting systems, applied in vibration suppression adjustment, non-rotational vibration suppression, etc., which can solve the problem of not meeting the vibration isolation requirements of high-speed engine mounting systems and effectively improving the high-frequency vibration isolation performance of vibration isolators , high-frequency vibration isolation performance of the vibration isolator is not ideal, etc., to achieve the effects of suppressing high-frequency dynamic hardening, broadening the vibration isolation frequency range, and simplifying the structure

Inactive Publication Date: 2014-02-12
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing magneto-rheological vibration isolators for automobile engine mount systems have the following disadvantages: 1) There is no decoupling film or only through the decoupling film to slow down the high-frequency dynamic hardening, so that the high-frequency vibration isolation performance of the vibration isolator Not ideal; 2) The upper liquid chamber is not equipped with a throttle plate, which cannot effectively improve the high-frequency vibration isolation performance of the vibration isolator; 3) The traditional vibration isolator is equipped with a liquid injection hole in the middle of the shell and an exhaust hole in the reinforcement block , so that it is easy to leak; 4) Separately set the decoupler, which increases the number of parts and affects production efficiency; 5) The frequency range of effective vibration isolation of existing magneto-rheological vibration isolators is limited, which does not meet the requirements of high-speed engine mount systems vibration isolation requirements

Method used

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  • Magneto-rheological damper of automobile engine suspension system
  • Magneto-rheological damper of automobile engine suspension system
  • Magneto-rheological damper of automobile engine suspension system

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with accompanying drawing, as figure 1 and 2 Shown: The magneto-rheological vibration isolator of the automobile engine mount system of the present invention includes a rubber main spring 1, a reinforcement block 5, a shell with an open top and a magnetic core assembly arranged inside the shell, and the shell includes an upper Housing 2 and lower housing 3, the lower end surface of the upper housing 2 and the upper end surface of the lower housing 3 are respectively provided with a circle of flanges 22 protruding outward perpendicular to the axis of the housing, and the bolts are installed in the flanges In the hole on the plate, screw in the nut and compress to realize the fixed connection between the upper shell 2 and the lower shell 3. The rubber main spring 1 is set and blocked at the opening at the top of the housing, and the rubber main spring 1 is concentrically provided with a connecting ro...

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Abstract

The invention discloses a magneto-rheological damper of an automobile engine suspension system, comprising a main rubber spring, a throttling disk, a magnetic core assembly and a decoupling film, wherein the damper is used for regulating the magnetic induction intensity at a magneto-rheological liquid channel in the magnetic core assembly through controlling the excitation current of an electromagnetic coil and then regulating the viscosity of magneto-rheological liquid at the magneto-rheological liquid channel to achieve the optimal damping effect. When the magneto-rheological damper is used, the turbulence level of the magneto-rheological liquid in a liquid feeding chamber can be increased through the throttling disk, the high-frequency dynamic hardening of the damper can be effectively inhibited, and the effectively damping frequency range can be widened. The damper has a more ideal dynamic characteristic and meets the use requirement for damping the automobile engine suspension system with high rotating speed; in addition, the damping capacity, the work stability and the convenience in assembly of the damper are improved through improving a floating decoupling film type decoupler, a sealing structure of the magnetic core assembly, a liquid injection hole structure and the like.

Description

technical field [0001] The invention relates to a vibration isolation device, in particular to a magneto-rheological vibration isolator used in an automobile engine suspension system. Background technique [0002] Magnetorheological fluid is a material whose yield stress and viscosity can change with an external magnetic field. This change is fast, reversible and controllable. Based on this feature, magnetorheological fluid can be used for devices controlled by an external magnetic field, such as brakes. , Vibration isolators, etc. The principle of the magnetorheological vibration isolator is to adjust the damping and stiffness of the vibration isolator through the resistance generated by the flow of magnetorheological fluid, so as to attenuate the vibration, and its vibration isolation rate can be controlled by an external magnetic field. [0003] Existing magneto-rheological vibration isolators for automotive engine mount systems generally consist of a shell, a rubber mai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/53
Inventor 郑玲李以农段绪伟邓召学
Owner CHONGQING UNIV
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