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A ball screw pair vibration damping structure

A ball screw pair and vibration-damping structure technology, which is applied in the field of damper vibration reduction, can solve problems such as difficult vibration control, and achieve the effects of simple structure, convenient adjustment, and simple vibration-damping structure

Active Publication Date: 2017-02-15
江苏启尖丝杠制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The dynamic characteristics of the ball screw pair are constantly changing with the movement of the nut along the screw, resulting in constant changes in the dynamic characteristics of the screw, and vibration control is difficult to achieve

Method used

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  • A ball screw pair vibration damping structure
  • A ball screw pair vibration damping structure
  • A ball screw pair vibration damping structure

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Embodiment 1

[0019] first as figure 1 , the present invention is a ball screw pair vibration damping structure, comprising: a ball screw pair 1 and a damper unit 2, the screw of the ball screw pair 1 is a hollow screw, and a plurality of Damper unit 2. The damper unit 2 is composed of a mass block 3 , a rubber ring 4 and an adjusting nut 5 . Rubber ring 4 is installed on mass block 3 two ends and is fastened with adjusting nut 5. The mass block 3 of the damper is supported and fixed in the inner hole of the hollow screw by the rubber rings 4 at both ends, and the supporting stiffness of the mass block 3 by the rubber ring 4 is changed by adjusting the nut 5, so that the natural frequency of each damper unit 2 is consistent with that of the ball wire The dynamic characteristics of the bars are matched to achieve the best vibration control effect.

[0020] The mass block 3 is cylindrical, with small-diameter steps at its two ends, the rubber ring 4 is set on the step, and the nut 5 is clo...

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PUM

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Abstract

The invention provides a vibration reduction structure for a ball screw pair, and belongs to the technical field of damper vibration attenuation. The vibration reduction structure comprises the ball screw pair and damper units. A screw rod of the ball screw pair is a hollow screw rod, wherein the multiple damper units are distributed inside a cavity of the screw rod. Each damper unit is composed of a mass block, rubber rings and adjusting nuts. The two ends of each mass block are provided with the corresponding rubber rings which are fastened through the corresponding adjusting nuts. The mass block of each damper unit is fixed in one inner hole of the hollow screw rod in a supported mode through the corresponding rubber rings at the two ends, the supporting stiffness on each mass block by the corresponding rubber ring is changed through the adjusting nuts, as a result, the inherent frequency of all dampers is matched with the dynamic property of the ball screw pair, and the optimal vibration control effect can be achieved.

Description

technical field [0001] The invention relates to a vibration damping structure of a ball screw pair, which belongs to the technical field of damper vibration reduction. Background technique [0002] Due to its high precision, high efficiency, high rigidity and other characteristics, the ball screw pair has been used in various industries, such as machinery, aerospace, aviation, nuclear industry, packaging machinery, etc. The ball screw is the most widely used mechanical transmission component in the servo feed system of CNC machine tools. With the continuous improvement of the feed speed and cutting speed of the machine tool, higher requirements must be put forward for the anti-vibration characteristics of the ball screw feed system. In large-scale CNC machine tools, due to the long stroke of the worktable, the lead screw becomes longer accordingly, resulting in a decrease in the rigidity and anti-vibration performance of the feed system, which affects the service life of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H25/22F16H57/028
CPCF16H25/2204F16H57/0006
Inventor 王民李凤蛟昝涛
Owner 江苏启尖丝杠制造有限公司
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