Displacement controllable air spring vibrating insulative basement

An air spring and vibration isolation technology, applied in the direction of springs, gas shock absorbers, springs/shock absorbers, etc., can solve the problems of short service life, easy wear and tear, and the width of the non-sensing belt cannot be adjusted in real time as needed, so as to prolong the service life. longevity, wear-free effect

Inactive Publication Date: 2005-07-27
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the installation is completed, the absolute position of the substrate is fixed, and the width of the non-inductive belt cannot be adjusted

Method used

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  • Displacement controllable air spring vibrating insulative basement
  • Displacement controllable air spring vibrating insulative basement
  • Displacement controllable air spring vibrating insulative basement

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1:

[0027] Such as figure 1 As shown, an air spring vibration isolation foundation. The height control unit is composed of a displacement sensor 1, a controller 3, and an electromagnetic directional valve 2. The non-contact displacement sensor 1 is used to measure the relative displacement between the ground and the substrate, and the displacement sensor 1 The output line is connected to the input signal line of the controller 3, the output of the controller 3 is connected to the coil of the electromagnetic directional valve 2, and the air interface of the electromagnetic directional valve 2 is respectively connected to the ambient air, air spring and air supply system;

Example Embodiment

[0028] Example 2:

[0029] Such as figure 2 As shown, an air spring vibration isolation foundation. The height control unit is composed of a displacement sensor 4, a controller 6, and an electromagnetic directional valve 5. The non-contact displacement sensor 4 is used to measure the relative displacement between the ground and the substrate. The displacement sensor 4 The output line of the controller 6 is connected with the input signal line of the controller 6, the output of the controller 6 is connected with the coil of the electromagnetic directional valve 5, and the air interface of the electromagnetic directional valve 5 is respectively connected with the ambient air, the air spring and the air supply system;

Example Embodiment

[0030] Example 3:

[0031] Such as image 3 As shown, an air spring vibration isolation foundation. The height control unit is composed of a displacement sensor 7, a controller 9, and an electromagnetic directional valve 8. The contact displacement sensor 7 is used to measure the relative displacement between the ground and the substrate. The output line is connected to the input signal line of the controller 9, the output of the controller 9 is connected to the coil of the electromagnetic reversing valve 8, and the air interface of the electromagnetic reversing valve 8 is respectively connected to the ambient air, the air spring and the air supply system;

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Abstract

'Vibration isolation system for air spring through displacement control' consists of matrix, air spring, gas supply system, and altitude control unit. Height control unit consists of displacement transducer, controller, and electromagnetic directional valve. The absolute altitude of matrix and width of non-sensitive range are adjusted by controller. Displacement transducer has strong anti-interfere capability, short response time and good reliability, determining the tiny vibration displacement, improving the measure accuracy and precision. Good Vibration isolation effect is obtained based on air spring characteristics of heavy load ability and low rigidity, so, the inhfluence of basic vibration on measure of super precise experiment apparatus is dramatically reduced, and the requirement of experiment apparatus is satisfied.

Description

technical field [0001] The invention relates to a displacement-controlled air spring vibration isolation foundation. Background technique [0002] At present, in the actual air spring vibration isolation foundation, the control method mainly adopts the height control valve, which has two methods: mechanical and electromagnetic. The electromagnetic control element has high sensitivity, but sometimes it is prone to malfunction; the mechanical control element operates reliably and does not malfunction. , but it is difficult to adjust the absolute height position of the foundation, the horizontal posture and the width of the dead band, where the dead band width is the displacement range of the base of the air spring in the state of neither inflating nor exhausting. After the installation is completed, the absolute position of the substrate is fixed, and the width of the insensitive band cannot be adjusted in real time as required, and the actual height control valve is always in...

Claims

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Application Information

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IPC IPC(8): F16F9/02F16F9/32
Inventor 谭久彬姚绍明王东林杨文国夏超马洪文
Owner HARBIN INST OF TECH
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