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Fertilizer distributor performance detection test stand, and adjustment and determination methods for different parameters

A technology of fertilizer discharger and test bench, which is applied to the testing of machines/structural components, instruments, and measuring devices. It can solve the problems of difficulty in synchronizing torque measurement and speed of fertilizer discharger, failure to achieve effects, interference, etc., and achieve hardware structure The effect of simple and reliable detection method, avoiding obstruction and regular interference

Inactive Publication Date: 2013-09-04
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the testing of fertilizer discharge performance and the optimization of fertilizer discharge parameters mainly rely on the field test of the whole machine, which can only verify the performance of specific structures and parameters, and cannot achieve different fertilizer discharge device structures and various parameter settings. Effect analysis, its function and effect are greatly limited, and it is urgent to provide test equipment and methods that can be used for fertilizer discharge performance testing and fertilizer discharge parameter optimization indoor testing
Hu Fengshou designed a multi-functional fertilizer discharge performance test bench (Hu Fengshou. Design and Research of Multi-Function Fertilizer Discharge Performance Test Bench [D]. Zhengzhou: Henan Agricultural University, 2009.), but this equipment can not realize the fertilizer tank. The adjustment and measurement of fertilizer amount, and the installation of solid particle flowmeter at the fertilizer inlet will cause obstruction and regular interference to the flow of granular fertilizer during the fertilizer discharge process; at the same time, it is difficult to synchronize the torque measurement and speed setting of the fertilizer discharger. Make judgments on the influence of friction torque and make it difficult to analyze the speed-load relationship during fertilizer discharge

Method used

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  • Fertilizer distributor performance detection test stand, and adjustment and determination methods for different parameters
  • Fertilizer distributor performance detection test stand, and adjustment and determination methods for different parameters
  • Fertilizer distributor performance detection test stand, and adjustment and determination methods for different parameters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like Figure 1 ~ Figure 2 As shown, the performance testing test bench of the fertilizer discharger is composed of a detection bench, a fertilizer tank adjustment detection system, and a fertilizer discharger transmission system.

[0026] Wherein the detection platform comprises a conveyor belt 1, a load cell 2, a transmission roller 3, a fertilizer receiving box 4, a lower sprocket 5, a transmission chain 6, an upper sprocket 7, a conveyor belt driving motor 8, a frame 12, and casters 13. Two drive rollers 3 are installed on the frame 12 by bearings respectively, the lower sprocket 5 is fixed on one end of a drive roller 3 , and the upper sprocket 7 is fixed on the output shaft of the belt drive motor 8 . The conveyor belt 1 is installed between two driving rollers 3 and is tensioned by the two driving rollers 3 . Along the direction of the conveyor belt 1 place the fertilizer receiving box 4 from the far-end ground of the fertilizer discharger 20, the height of the f...

Embodiment 2

[0030] Adjustment and measurement of different parameters on the fertilizer discharger performance testing test bench

[0031] (1) fertilizer discharger 20 speed

[0032] The speed of the fertilizer discharger drive motor 21 can be set by the frequency converter 22 , so that the speed of the fertilizer discharger 20 can be adjusted according to the transmission ratio between the fertilizer discharger drive motor 21 and the fertilizer discharger 20 .

[0033]The transmission ratio of the drive motor 21 of the fertilizer discharger and the fertilizer discharger 20 is 3, and the speed of the drive motor 21 is set to 3000, 2700, 2400, 2100, 1800, 1500, 1200, 900, 600, 300 rev / min, then the rotating speed of fertilizer discharger 20 is respectively 1000, 900, 800, 700, 600, 500, 400, 300, 200, 100 rev / min.

[0034] (2) Structure of the fertilizer discharger 20

[0035] By dismounting the bearing and the bearing seat 16, the replacement of the fertilizer discharger 20 with differe...

Embodiment 3

[0053] Performance testing and parameter optimization test of fertilizer discharger

[0054] In the performance detection and parameter optimization test of the fertilizer discharger 20, the fertilizer discharger 20 with different structures was replaced according to the second embodiment, and the speed of the fertilizer discharger 20, the opening of the fertilizer inlet and the opening of the fertilizer discharge were set according to the second embodiment. Determine, according to embodiment two, carry out the mensuration of fertilizer input amount, fertilizer discharge amount and fertilizer discharge load, evaluate fertilizer discharge device performance and operation parameter by following index, and then determine the optimized fertilizer discharge device structure and operation parameter:

[0055] (1) Fertilizer discharge load

[0056] When the fertilizer discharge load is small and stable, it indicates that the fertilizer discharge effect is good; when the fertilizer dis...

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Abstract

The invention discloses a fertilizer distributor performance detection test stand, and adjustment and determination methods for different parameters. The test stand consists of a detection rack, a fertilizer box adjustment and detection system and a fertilizer distributor driving system. The rotating speed of a fertilizer distributor is adjusted through a variable-frequency speed controller; the change of fertilizer distributors with different structures is carried out by disassembling bearings and bearing seats; the flow of an inlet is adjusted through fertilizer box clapboards; the top surface height of a granular fertilizer is detected through a photoelectric liquid level sensor arranged on a turnover cover board, so the fertilizer inlet volume can be calculated; the size of a fertilizer outlet is adjusted through a fertilizer outlet adjustment board, and the fertilizer outlet volume is obtained through a weighing sensor; and a fertilizer outlet load of the fertilizer distributor is calculated according to the current record and the transmission ratio of no-load operation and fertilizer outlet operation of the fertilizer distributor, which are recorded by interface programs on the variable-frequency speed controller. With the adoption of the test stand and the methods disclosed by the invention, a particle flowmeter is not needed to be installed, so the problems that the particle flowmeter obstructs the flow of the particle fertilizer and interferes with the law of the flow of the particle fertilizer in the fertilizer outlet process are avoided, the fertilizer outlet load can be determined, and the hardware structure and the detection method are simple and reliable, and can be used for detecting the fertilizer distributor performance.

Description

Technical field [0001] The invention relates to the field of agricultural equipment, in particular to a test bed and a test method for the performance detection of a fertilizer discharger. Background technique [0002] The fertilizer discharger is a key device for the mechanized application of chemical fertilizers, and a variety of fertilizer dischargers with different structures have been developed at home and abroad. According to the difference between fertilization objects and fertilization systems, the performance detection of fertilizer discharge and the optimization test of fertilizer discharge parameters are key to achieve the fertilization effect with accurate discharge, strong adaptability and no clogging. However, at present, the testing of fertilizer discharge performance and the optimization of fertilizer discharge parameters mainly rely on the field test of the whole machine, which can only verify the performance of specific structures and parameters, and cann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00
Inventor 刘继展张亚
Owner JIANGSU UNIV