Test bed and test method for quality reliability of cleaning screen box

A test bench, reliable technology, applied in the field of agricultural harvesters, can solve problems such as can not be used to simulate periodic loads

Pending Publication Date: 2022-05-31
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The test device can simulate the actual working conditions of the frame assembly, but it cannot

Method used

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  • Test bed and test method for quality reliability of cleaning screen box
  • Test bed and test method for quality reliability of cleaning screen box
  • Test bed and test method for quality reliability of cleaning screen box

Examples

Experimental program
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Embodiment Construction

[0046] As shown in FIG. 4, the loading mechanism 12 includes a counterweight slider 1202, a loading mechanism main body 1203 and a support frame

[0048] As shown in Figures 7 and 8, a number of the strain gauge sensors 16 are mounted on the outer surface of the screen box wall 101 for

[0055] It should be understood that although this specification is described in terms of various embodiments, not every embodiment includes only a

[0056] The series of detailed descriptions listed above are only specific descriptions for feasible embodiments of the present invention,

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Abstract

The invention provides a quality reliability test bed for a cleaning screen box. The quality reliability test bed comprises the cleaning screen box, a loading mechanism, a detection mechanism, an information analysis system, a power driving mechanism and a rack, the loading mechanism is mounted above the cleaning screen box and is used for simulating an impact load of a material on the cleaning screen box by applying a periodic load to the cleaning screen box; the detection mechanism comprises a plurality of strain gauge sensors and at least one three-way acceleration sensor and is used for collecting strain signals and vibration signals on the cleaning screen box; one end of the cleaning screen box is installed on the machine frame, the other end of the cleaning screen box is installed on the machine frame through a power driving mechanism, and the power driving mechanism is used for enabling the other end of the cleaning screen box to generate vibration. The information analysis system is connected with the detection mechanism and judges whether the condition of the sorting screen box is abnormal or not according to the collected strain signals and vibration signals. According to the invention, the abnormal condition of the cleaning screen box during the test can be found out, and the abnormal point can be positioned.

Description

A kind of test bench and test method for quality reliability of cleaning screen box technical field The present invention relates to the field of agricultural harvesters, in particular to a kind of quality reliability test bench for cleaning screen boxes and testing method. Background technique The cleaning screen box is an important component of the combine harvester, and the quality of its quality affects the cleaning of the whole machine during the harvesting operation. Ability to choose debris. The cleaning screen box has large quality and complex structure, and is generally composed of two layers of screen surface, screen frame, bearing, drive shaft and other parts. to make. The cleaning screen box has been in a reciprocating working state for a long time, bearing periodic impact loads, which is easy to cause rubber shafts Bearing wear, bearing seat fracture and column open welding and other faults. Once a fault occurs, it takes a long time to repair, not I...

Claims

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Application Information

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IPC IPC(8): G01M99/00G01M7/04G01M7/08
CPCG01M99/005G01M99/007G01M7/04G01M7/08
Inventor 马征张照辉李耀明丁莲莲吕长春朱永乐姜晟
Owner JIANGSU UNIV
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