An arm vibration test device
A vibration test and boom technology, applied in vibration test, measurement device, impact test, etc., can solve the problems of poor simulation and complex structure, and achieve the effects of low manufacturing cost, low overall weight and high reliability
Active Publication Date: 2019-09-06
HUNAN SANY ROAD MACHINERY
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Problems solved by technology
[0006] In view of this, the object of the present invention is to provide a boom vibration test device, which can solve the defects of complex structure and poor simulation degree in the prior art or at least one of them
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[0031] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0032] figure 1 Shown is the installation diagram of the jib vibration test device of an embodiment of the present invention, figure 2 and image 3 Shown is figure 1 Schematic diagrams of the illustrated embodiment in different states. The device is used to apply impact vibration to the boom of construction machinery, and then carry out fatigue test on the boom. This embodiment includes a bracket 1 , a vibrating rod 2 and a driving mechanism 4 .
[0033] Wherein, the bracket 1 includes a mounting part for connecting with the arm frame 5, the vibrating rod 2 includes a hinged part for being hinged with the bracket 1, and the driving mechanism 4 is arranged on the bracket 1 for driving the vi...
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The invention discloses a cantilever crane vibration test device, which comprises a bracket, a vibration rod and a driving mechanism, wherein the bracket comprises an installation part used for being connected with a cantilever crane; the vibration rod comprises a hinge part used for being hinged with the bracket; the driving mechanism is arranged on the bracket, and is used for driving the vibration rod to swing to a preset height; and the driving mechanism is detached from the vibration rod when the vibration rod swings to the preset height, and the center of gravity of the vibration rod deviates from the hinge part. The cantilever crane vibration test device applies impact vibration to the cantilever crane through the swing of the vibration rod, can be used for carrying out fatigue tests on the cantilever crane, has the advantages of light weight, simple structure, high reliability, low manufacturing cost and the like. Furthermore, the cantilever crane vibration test device can be used for adjusting an excitation force and vibration frequency.
Description
technical field [0001] The invention mainly relates to the technical field of fatigue test detection, in particular to a boom vibration test device. Background technique [0002] The boom is a common device in construction machinery, and the working position of the end can be adjusted through the telescopic or swinging of the boom. Taking the concrete pump truck as an example, the boom is the support for its concrete delivery pipeline. During the process of pumping concrete, the impact vibration generated by the material in the pipeline will be transmitted to the boom, causing the boom to vibrate in the vertical and horizontal directions, and fatigue fracture will inevitably occur under long-term action. [0003] In order to optimize the jib structure, improve its service life and reliability, one of the important ways in this field is to analyze the fatigue performance of the jib through experiments. When the boom vibration test device is tested, it is required to be as c...
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IPC IPC(8): G01M7/02G01M7/08
Inventor 汤如龙李建涛吴敦福
Owner HUNAN SANY ROAD MACHINERY