Journal of Jilin University(Engineering and Technology Edition) ›› 2026, Vol. 56 ›› Issue (1): 275-288.doi: 10.13229/j.cnki.jdxbgxb.20240703

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Design and experiment of feeding adjustable membrane debris shredding device

Jian-hua XIE1,2(),Ya-kun DU1,Jia ZHANG1,3,Yuan-ze LI1,Yong YUE1,2   

  1. 1.College of Mechanical and Electrical Engineering,Xinjiang Agricultural University,Urumqi 830052,China
    2.Xinjiang Key Laboratory of Intelligent Agricultural Equipment,Xinjiang Agricultural University,Urumqi 830052,China
    3.College of Mechanical and Electrical Engineering,Xinjiang Institute of Engineering,Urumqi 830023,China
  • Received:2024-05-23 Online:2026-01-01 Published:2026-02-03

Abstract:

In response to the problem of feeding blockage caused by the clustering of membrane debris mixture, this paper designs a membrane debris shredding device with feeding regulation function that meets the palatability requirements of white star flower beetle larvae. By conducting force analysis on the feeding and shredding process of the membrane mixture, the structural and working parameters of the main components were determined. In order to verify the reliability and operational performance of the machinery, a single factor experiment was conducted to determine the reasonable range of values for the feeding roller speed, dynamic and fixed blade clearance, and chopper roller speed. The feeding roller speed, dynamic and fixed blade clearance, and chopper roller speed were used as experimental factors, and the cotton stem shredding length qualification rate, residual film shredding length qualification rate, and power consumption were used as evaluation indicators for a three factor three-level response surface test. A regression model was established to analyze the influence of each factor and its interaction on the operational performance of the machinery, and optimize each factor. The optimization results showed that the optimal operating effect was achieved when the feeding roller speed was 24.8 r/min, the dynamic and fixed blade clearance was 0.4 mm, and the shredding blade roller speed was 256.4 r/min. The optimized results were verified through experiments, and the average qualified rate of cotton stem shredding length was 89.99%, the average qualified rate of residual film shredding length was 90.53%, and the average power consumption was 0.97 kW. The research results can provide reference for the development of film mixed shredding technology.

Key words: agricultural machinery, membrane mixture, feed adjustment, shred

CLC Number: 

  • S225

Fig.1

Schematic diagram of the structure of membrane chopping device"

Fig.2

Belt conveyor mechanism structure schematic diagram"

Fig.3

Schematic diagram of structure of adaptiveadjustment feeding mechanism"

Fig.4

Force analysis of membrane mixed materialduring feeding operation"

Fig.5

Chopping mechanism"

Fig.6

Expanded view of chopping knife arrangement"

Fig.7

Arc sieve expanded view"

Fig.8

Force analysis of membrane mixtures duringshredding operations"

Fig.9

Single factor experiment results"

Table 1

Test factor level code"

编码因素
喂入压辊转速x1/(r·min-1动定刀间隙x2/mm切碎刀辊转速x3/(r·min-1
-1200.4250
0250.8280
1301.2310

Table 2

Program and results of experiment"

试验序号X1X2X3棉秆切碎长度合格率Y1/%残膜切碎长度合格率Y2/%消耗功率Y3/kW
1-10-184.1591.651.45
200089.1588.871.28
300087.6789.271.31
410-184.4992.531.06
501-185.3194.081.28
61-1090.0287.381.05
7-1-1090.7587.541.14
800088.5389.451.29
900088.3989.351.26
1001190.9886.561.72
11-11089.6087.891.32
120-1-189.2491.120.96
130-1191.2686.291.69
1411088.5390.691.24
1510186.1586.871.92
1600088.7290.811.22
17-10188.7685.282.01

Table 3

Model variance analysis"

指标方差来源离差平方和自由度均方FP显著性
棉秆切碎长度合格率Y1模型72.6298.0732.09<0.000 1**
X12.0712.078.230.024 0*
X25.8715.8723.320.001 9**
X324.36124.3696.87<0.000 1**
X1X20.0310.030.110.744 5
X1X32.1812.188.650.021 7*
X2X33.3313.3313.240.008 3**
X124.5414.5418.060.003 8**
X2221.73121.7386.39<0.000 1**
X3210.33110.3341.060.000 4**
残差1.7670.25
失拟0.5930.200.670.614 3
误差1.1740.29
总和74.3816
残膜切碎长度合格率Y2模型91.37910.1532.04<0.000 1**
X13.2613.2610.300.014 9*
X25.9315.9318.730.003 4**
X374.30174.30234.49<0.000 1**
X1X22.1912.196.910.033 9*
X1X30.1310.130.400.548 3
X2X31.8111.815.710.048 2*
X122.7112.718.560.022 2*
X220.5810.581.840.216 6
X320.4710.471.490.261 5
残差2.2270.32
失拟0.0430.010.020.994 1
误差2.1840.54
总和93.5916
消耗功率Y3模型1.4290.15844.92<0.000 1**
X10.05310.05315.060.006 1**
X20.06510.06518.470.003 6**
X30.83910.839239.04<0.000 1**
X1X20.00010.0000.0070.935 1
X1X30.02310.0236.410.039 1*
X2X30.02110.0215.990.044 2*
X120.01310.0133.830.091 2
X220.08410.08423.860.001 8**
X320.33410.33495.12<0.000 1**
残差0.02570.004
失拟0.02030.0075.660.063 6
误差0.00540.001
总和1.4416

Fig.10

Response surfaces of interaction experiment factors on index"

Fig.11

Equipment operation effect"

Table 4

Experimental verification results"

试验号棉秆切碎长度合格率Y1/%残膜切碎长度合格率Y2/%消耗功率Y3/kW
平均值89.9990.530.97
189.9490.340.95
290.1790.541.04
389.8690.710.92
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