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A Parallel Mode Semi-Active Vibration Isolator

A semi-active, vibration isolator technology, used in shock absorbers, shock absorber-spring combinations, shock absorbers, etc., can solve the problem of limited frequency shift range of vibration isolation components, damage to magnetorheological elastomers, and stiffness changes. limited problems, to achieve the effect of improving service life, reducing vibration, and reducing stiffness

Active Publication Date: 2016-07-20
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the load of rotating machinery is generally large, if the magnetorheological elastomer is directly used as a vibration isolation element to bear the load of the rotating machinery, it will often exceed the yield strength limit of the magnetorheological elastomer, which will easily cause the magnetorheological elastomer The damage of the damage, and the stiffness of the magnetorheological elastomer working alone in the shear mode or extrusion mode is limited, so that the frequency shift range of the vibration isolation element is limited, which limits the magnetorheological elastomer to a certain extent. Application of vibration isolation technology in vibration system with heavy load

Method used

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  • A Parallel Mode Semi-Active Vibration Isolator
  • A Parallel Mode Semi-Active Vibration Isolator

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] see figure 1 , the structural form of the parallel mode semi-active vibration isolator in this embodiment is:

[0026] A cylindrical upper casing 21 is provided, the rubber main spring 1 is blocked in the top opening of the upper casing 21, the main spring skeleton 3 runs through the rubber main spring 1, and upper and lower ends of the main spring skeleton 3 are respectively provided with upper The connecting stud 31 and the lower connecting stud 32, the upper end of the upper connecting stud 31 is used to connect with the main vibrating object, and transmits the vibration energy of the main vibrating object, and the lower end of the lower connecting stud 32 is used for and is wound with an excitation coil 46 columnar iron cores 41 are connected, and the columnar iron cores 41 are supported in the magnetic sleeve 44 through the shear magnetorheological elastomers 45 arranged on the outer circumference of the columnar iron cores, and the two sides of the extruded magnet...

Embodiment 2

[0031] see figure 2 , the structural form of the parallel mode semi-active vibration isolator in this embodiment is:

[0032] A ring-shaped rubber main spring 1 is provided, and the upper casing 21 and the lower casing 22 are respectively connected with the top end and the bottom end of the rubber main spring 1 to form a vibration isolator shell cavity, and the upper end and the lower end of the upper casing 21 are fixed respectively. There are an upper connecting stud 31 and a lower connecting bolt 32, wherein the upper end of the upper connecting bolt 31 is used to connect with the main vibrating object, and the lower end of the lower connecting bolt 32 is used to connect with the cylindrical iron core 41 wound with an excitation coil 46. connection, the columnar iron core 41 is supported in the magnetic sleeve 44 through the shearing magnetorheological elastomer 45 arranged on the outer circumference of the columnar iron core, and the two ends of the extruded magnetorheolo...

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Abstract

The invention discloses a paralleling model semi-active vibration isolator. The vibration isolator is characterized in that a cylindrical upper shell is arranged, a rubber main spring is plugged in a top end opening of the upper shell, a main spring framework penetrates through the rubber main spring and is provided with an upper connection stud and a lower connection stud, the upper connection stud is connected with a main vibrating object, the lower connection stud is connected with a column-shaped iron core where an excitation coil is wound, the column-shaped iron core is supported in a magnetism conduction sleeve through a cutting magnetorheological elastomer arranged on the outer circumference of the column-shaped iron core, the two ends of the magnetorheological elastomer are extruded to be connected with the top of a T-shaped support and the bottom end of the iron core, and the T-shaped support penetrates through the magnetism conduction sleeve and is fixedly connected; the upper shell is connected with a lower shell, the lower end of the T-shaped support is fixedly connected with the lower shell, and the bottom of the lower shell is provided with a connection bolt used for being connected with a basal body. By means of the vibration isolator, vibrating energy transmitted by a rotary machine to the basal body can be effectively reduced, vibration of relative parts of the rotary machine is reduced, and the service life of the rotary machine and a system of the rotary machine is prolonged.

Description

technical field [0001] The invention relates to a vibration isolation mechanism in a vibration system, more specifically a vibration isolation mechanism suitable for automotive powertrain suspension systems, ship power systems, medical equipment systems, special equipment carriers, machine tool processing equipment, etc. A parallel mode semi-active vibration isolator. Background technique [0002] Rotating machinery is a power output component widely used in the engineering field. During the use of rotating machinery, there are generally disturbance excitations that vary with their rotational speed. Taking the internal combustion engine as an example, when the internal combustion engine is working, the pitching moment generated by the cylinder pressure and the reciprocating inertial force is the main disturbance excitation of the internal combustion engine, and the frequency of the disturbance torque is twice the angular frequency of the internal combustion engine’s rotation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F13/00
CPCF16F13/06
Inventor 钱立军辛付龙白先旭程伟邱利宏
Owner HEFEI UNIV OF TECH
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