Volume self-adjusting multi-inertia-channel hydraulic mount based on magnetorheological fluid
A technology of inertia channel and hydraulic mount, which is applied in the direction of vibration suppression adjustment, shock absorber, mechanical equipment, etc., can solve the problems of narrow frequency range of damping characteristic adjustment, insufficient automatic adjustment ability of hydraulic mount, etc.
Pending Publication Date: 2022-06-07
JILIN UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to provide a volume self-adjusting multi-inertia channel hydraulic mount based on magneto-rheological fluid, so as to solve the problem that the damping characteristic adjustment frequency range of the mounting system in the prior art is narrow and the automatic adjustment ability of the hydraulic mount is insufficient. The problem
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[0028] The design idea of the present invention is: the magnetorheological liquid is filled in the cavity formed by the magnetorheological upper liquid chamber 24 , the inertial inlet channel 7 , the inertial intermediate channel 8 , the inertial outlet channel 9 and the magnetorheological lower liquid chamber 14 . The liquid in the cavity cooperates with the dynamic shock absorber composed of the rubber main spring 2, the inertia channel plate 21 and the rubber bottom film 13 to generate damping force to absorb the vibration of the engine. The inertial channel plate 21 adopts a symmetrical design, which greatly increases the number of inertial channels within a limited volume and improves the frequency range of the vibration that the hydraulic mount can absorb. At the same time, the designed volume self-adjusting mechanism can automatically adjust the liquid volume in the inertia channel according to the working state of the hydraulic mount, so as to generate a damping force...
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The invention relates to a volume self-adjusting multi-inertia channel hydraulic mount based on magnetorheological fluid, which comprises an inertia magnetorheological channel device and a volume self-adjusting mechanism, and the inertia magnetorheological channel device enables the magnetorheological fluid to flow between an upper magnetorheological fluid chamber and a lower magnetorheological fluid chamber through an inertia channel. And after the electromagnetic coil supplies power, the magnetorheological liquid in the magnetic current cavity is changed into a solid-like state from a liquid-like state, so that damping force required by parts such as an engine and the like is provided. The inertia channels are symmetrically designed, the number is increased, and the adjustable damping range is widened. The volume self-adjusting mechanism utilizes an adjusting piston and a channel plate adjusting spring to automatically adjust the volume of the magnetorheological fluid in the inertia channel so as to adjust the damping force provided by the hydraulic mount, so that the damping force is matched with the changing working state of the hydraulic mount, and the self-adjusting function of the hydraulic mount is achieved. And the inertia magnetorheological channel device and the volume self-adjusting mechanism are matched with each other, so that the working efficiency of the hydraulic mount is improved, and the service life of the hydraulic mount is prolonged.
Description
technical field [0001] The invention belongs to the technical field of hydraulic mounts for automobiles, and in particular relates to a volume self-adjusting multi-inertia channel hydraulic mount based on magnetorheological fluids applied to passenger cars. Background technique [0002] With the increasing living standards of consumers, the requirements for vibration and noise levels during driving are getting higher and higher, and good NVH performance has become an indispensable research content for vehicles. Mounting is one of the components that improves the NVH performance of vehicles. Engine mounts are supporting vibration isolation elements that connect the engine and the vehicle body. of comfort. Common types of mounts are divided into rubber mounts, hydraulic mounts, semi-active mounts and active mounts according to the development process. Among them, the hydraulic mount has the characteristics of large low-frequency damping, low high-frequency dynamic stiffness,...
Claims
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IPC IPC(8): F16F13/00F16F9/53F16F9/504F16F9/32
CPCF16F13/00F16F9/535F16F9/504F16F9/3207
Inventor 陈志勇王建喜
Owner JILIN UNIV