A multi-stage vibration isolation platform based on the principle of cam-roller mechanism
A vibration isolation platform and mechanical principle technology, applied in the direction of mechanical equipment, shock absorbers, spring/shock absorber functional characteristics, etc., can solve the problems of weakened shock absorption effect, poor shock isolation/shock absorption characteristics, etc., and achieve easy adjustment , Practical and reliable adjustment, simple manufacturing and installation
Active Publication Date: 2021-08-13
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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Problems solved by technology
[0006] Aiming at the problem that quasi-zero-stiffness shock absorbers weaken the shock-absorbing effect of non-corresponding masses, this invention utilizes the mechanically separable characteristics of cams and rollers to propose a multi-stage vibration isolation platform based on the mechanical principle of cam-rollers. Solved the problem of poor vibration isolation / damping characteristics of a single system for different masses
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[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0041] A multi-stage vibration isolation platform based on the principle of cam-roller mechanism, such as Figure 8 As shown, it includes a fixed base 17, a vertical guide rod vertically fixed on the top of the fixed base 17, a vertical spring 1-1 sleeved on the vertical guide rod 1, and a loading platform 14 horizontally arranged above the fixed base 17. One end of the vertical spring 1-1 is fixedly connected to the fixed seat I7, and the other end of the ver...
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The invention discloses a multi-stage vibration isolation platform based on the mechanical principle of cam-roller, which comprises a fixed seat I, a vertical guide rod fixedly arranged on the fixed seat I, a vertical spring sleeved on the vertical guide rod, a fixed On the loading platform above the seat I, one end of the vertical spring is fixedly connected with the fixed seat I, and the other end of the vertical spring is connected with the lower part of the loading platform through a movable support; The upper part of the guide bar is flexibly connected; one side of the cam assembly is detachably connected to the movable support, and the other side of the cam assembly is provided with a cam group, which cooperates with the roller on one side of the lateral guide rod; the lateral guide rod is adjusted The supporting member is movably connected with the fixing seat II; the transverse guide rod is covered with a transverse spring, one end of the transverse spring is fixedly connected with the transverse guide rod, and the other end of the transverse spring is fixedly connected with the adjusting support member. The present invention can achieve complete shock isolation for different qualities, and is simple, reliable and easy to manufacture and install.
Description
technical field [0001] The invention belongs to the technical field of vibration isolation, in particular to a multi-stage vibration isolation platform based on the mechanical principle of cam-roller. Background technique [0002] The so-called quasi-zero stiffness shock absorber is a vibration isolation platform with high static stiffness and low dynamic stiffness. High static stiffness means high load capacity or small static load deformation, and low dynamic stiffness means low or close to zero. natural frequency. The shock absorber with this characteristic is mainly to solve the following problems caused by the traditional linear shock absorber composed of mass m and stiffness k. The effective vibration isolation frequency of the linear shock absorber is greater than the natural frequency twice the root number Therefore, if a wider vibration isolation frequency range is to be obtained, the stiffness k of the linear damper needs to be infinitely small (the natural frequ...
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IPC IPC(8): F16F7/116
CPCF16F7/116F16F2228/06F16F2230/0005F16F2230/0011
Inventor 赵峰季进臣叶侃骆泉添谢欢
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY