Spring - mass damping device

A vibration damping device and quality technology, applied in the direction of spring/shock absorber, shock absorber, shock absorber, etc., can solve problems such as difficult to observe, and achieve the effect of eliminating rack vibration

Inactive Publication Date: 2017-02-22
南京乐汉东智能设备有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the vibration and vibration reduction of the spring-mass system vibration reduction is mainly realized by a complex vibration table, which is not easy to observe

Method used

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  • Spring - mass damping device

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Embodiment Construction

[0010] Such as figure 1 As shown, the same slide rail 9 is provided with a vibration damping mass 7 and a frame 2 sliding along the slide rail, and a second spring 6 is connected between the vibration damping mass 7 and the frame 2; A first spring 1 is connected between the other end of the frame 2 and the fixture. The frame 2 is equipped with a slider crank mechanism, and a bearing 8 cooperating with the slide rail 9 is installed below the frame 2. The slider crank mechanism The sliding block 3 slides on the frame in the same direction as the frame slides along the slide rail.

[0011] The slider crank mechanism is driven by a motor mounted on the frame to realize reciprocating swing.

[0012] figure 1 In the structure shown, the principle of vibration is that the movement of the crank slider causes the center of mass of the frame to shift, causing vibration of the frame, including the first spring 1, the frame 2, the slider 3, the connecting rod 4, and the crank 5. The cr...

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Abstract

The invention discloses a spring-mass damping device. A damping mass block and a rack which slide along a slide rail are arranged on the slide rail in the same direction, and a second spring is connected between the damping mass block and the rack; a first spring is connected between the other end of the rack and a fixed object, a slider crank mechanism is mounted on the rack, the sliding direction of a sliding block on the slider crank mechanism is consistent with the sliding direction of the rack along the slide rail, and the slider crank mechanism realizes reciprocating swing by the aid of a motor mounted on the rack; the spring-mass damping device has the advantage of being used in a teaching apparatus for demonstrating a single-degree-of-freedom vibration phenomenon. The slider crank mechanism excites the rack to vibrate, the vibration energy of the rack is absorbed by a spring-mass damping system, all parameters of single-degree-of-freedom damping and two-degree-of-freedom vibration are analyzed and calculated through quantitative and qualitative analysis, the mass of a spring and the mass block with appropriate stiffness coefficients are selected through the technical parameters, and accordingly, the vibration of the rack is reduced and even eliminated.

Description

technical field [0001] This paper relates to the field of mechanical vibration technology, especially the concepts of crank slider vibration excitation and spring-mass system vibration reduction are made into a physical model, and the spring-mass vibration reduction principle is applied to the vibration reduction field of the machine frame. A spring-mass damping device combining excitation and damping. Background technique [0002] Eccentric wheels are mainly used in the current products used to induce frame vibration. The eccentric wheel needs to do rotary motion, and it also needs to have a large enough moment of inertia under the working condition of low speed, which limits the application of the eccentric wheel. [0003] The spring-mass system vibration reduction theory and the two-degree-of-freedom vibration principle are relatively abstract. At present, the vibration and vibration reduction of the spring-mass system are mainly realized by a complex vibration table, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F7/104
CPCF16F7/1005F16F7/104
Inventor 罗玉军蒋邹黄亮张立文李名宇张永军
Owner 南京乐汉东智能设备有限公司
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