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Two-bar impaction-regulating vibration excitor

An adjustable vibration exciter technology, applied in the direction of striking tools, vibrating fluids, hand hammers, etc., can solve the problems of the position of the force point, the magnitude of the force and the direction of action of the pulse excitation method, which are difficult to accurately control, and achieve the direction Ease of precise control, convenient operation, and simple test equipment

Inactive Publication Date: 2010-07-14
HUNAN UNIV OF SCI & TECH
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem that it is difficult to accurately control the position of the force point, the magnitude of the force and the direction of action in the existing pulse excitation method, the present invention provides a two-bar impact adjustable vibration exciter with simple structure, convenient operation and high repeatability

Method used

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  • Two-bar impaction-regulating vibration excitor
  • Two-bar impaction-regulating vibration excitor

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Embodiment Construction

[0014] see figure 1 , the present invention comprises impact head 1, dowel 2, pin 4, gun barrel 6, trigger 7, impact hammer 8, spring 9, gun mount 11, handle 12, sensor 13, and described gun mount 10 is disc-shaped , the gun mount 10 is provided with a handle 12, one end of the gun barrel 6 is fixed on the disc-shaped gun mount 11, the dowel bar 2, the impact hammer 8, and the spring 9 are sequentially set in the gun barrel 6, and the spring 9 is located at the most end of the gun barrel 6. At the inner end, fix the impact head 1 and the dowel bar 2 with bolts 14. The dowel bar 2 is provided with three positioning holes 5, and the gun barrel 6 is provided with pin holes corresponding to the positioning holes 5 on the dowel bar 2. 3. Fix the dowel 2 in the barrel 6 with the pin 4, the barrel 6 is provided with a snap-in slot 16 for positioning the punch 8, and the snap-in slot 16 is provided with three bayonets 15, A trigger 7 fixed with the punch hammer is arranged in the buc...

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Abstract

This invention discloses a sort of bi-bar concussion tunableness vibration excitor, which includes strike-head, dowel bar, falling weight, spring, gun barrel, and seat. One end of is fastened to the gun-seat. Dowel bar, falling weight and spring install in the gun barrel in turn. The spring is in the bottom of the gun barrel. The strike-head is fastened to dowel bar. There is more than one hole on the dowel bar. Dowel male pin hole on the dowel bar matched to the location hole. The dowel male pin is fastened to gun barrel. This invention has simplicity construction, convenience operation, high precision, which is an ideal testing apparatus for dynamic behavior analysis, modal analysis, non-destructive testing.

Description

technical field [0001] The invention relates to a vibration exciter, in particular to a two-bar impact adjustable vibration exciter used for the research of structural dynamic characteristics. Background technique [0002] The pulse excitation method is an important method for the study of structural dynamic characteristics. Compared with other excitation methods: the test time is short, the required equipment is simple, the operation is convenient, and there is no need to impose stiffness and mass constraints on the tested structure, so It can avoid affecting the dynamic characteristics of the tested structure due to the intervention of the vibration exciter. It is suitable for test pieces with free constraints. It can test light and small test pieces with complex surface shapes that are not easy to clamp. The test can not only be carried out in the laboratory , and can also be carried out in the production workshop or the use site, which is convenient for further mathemati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B06B1/14B25D1/16
Inventor 刘德顺杨书仪文泽军岳文辉
Owner HUNAN UNIV OF SCI & TECH
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