Journal of Jilin University(Engineering and Technology Edition) ›› 2024, Vol. 54 ›› Issue (2): 564-573.doi: 10.13229/j.cnki.jdxbgxb.20220449

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Design and experiment of silage baling and wrapping machine with electric driving

Bin FENG1(),Tao ZHANG1,2(),Tao LIANG2,Ying ZHANG2,Xing-long TANG2,Guan-ping WANG1   

  1. 1.College of Electromechanical Engineering，Gansu Agricultural University，Lanzhou 730070，China
    2.Chongqing Academy of Agricultural Sciences，Chongqing 401329，China
  • Received:2022-05-19 Online:2024-02-01 Published:2024-03-29
  • Contact: Tao ZHANG E-mail:gsfengbin@163.com;fendou8423030@163.com

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Abstract:

Aiming at the problems of silage baling and film wrapping link separation， large supporting power， an silage baling and wrapping film machine with electric drive was designed. By analyzing the working principle of the machine and the operation process of the core components， the main parameters such as the power of feeding and baling device， the linear speed of conveyor belt， the opening angle of the baling chamber， and the time required for 2~3 layers of film wrapping were determined， the reliability simulation of the frame at full load and the performance test of the whole machine were carried out. The results show that the frame maximum stress was 116.4 MPa and the maximum deformation was 0.71 mm under full load condition， which meet the mechanical properties of the material. The bundling rate was 97.8%， the regular bundling rate was up to 100%， the bale density was 148.2~162.5 kg/m3， and the straw bale resistance rate was 84.0%. The whole machine runs smoothly and reliably with small vibration， the low straw bale resistance rate may be caused by the straw being too uniform and short， and the twine was not complete， which can be optimized in the later crushing treatment and twine mechanism.

Key words: agricultural machinery, silage, kinking institutions, baling wrap film, finite element, experiment

CLC Number: 

  • S817.1

Fig.1

Sketch map of silage baling and wrapping machine with electric driving"

Table 1

Main technical parameters of silage baling and wrapping machine with electric driving"

参数设计值
长×宽×高/（mm×mm×mm）2450×1500×1400
配套动力/kW电动机 5.5
整机质量/kg600
成捆尺寸/mmφ580×500
成捆质量/kg30~80
挂接方式牵引式
作业效率/（包·h-1）40~60

Fig.2

Transmission system diagram of silage baling and wrapping machine with electric driving"

Fig.3

Diagram of feeding process"

Fig.4

Schematic diagram of baling device"

Fig.5

Working principle of baling chamber"

Fig.6

Structure diagram of herringbone aluminum alloy circular roller"

Fig.7

Schematic diagram of kinking institutions"

Fig.8

Schematic diagram of composition and movement process of unloading mechanism"

Fig.9

Schematic diagram of composition and movement process of wrapping device"

Fig.10

Schematic diagram of rack structure and installation position of each device"

Table 2

Load type and apply form while the rack be fully loaded"

载荷数值/N形式
总和7270/
控制器120集中载荷
裹膜装置+青饲圆捆+电动机Ⅰ2000集中载荷
电动机Ⅱ600集中载荷
传动装置500集中载荷
打捆装置+青饲圆捆2600集中载荷
液压油泵150集中载荷
机架质量1300惯性载荷

Fig.11

Distribution diagram of equivalent stress and deformation of rack in full load condition"

Fig.12

Prototype performance test"

Table 3

Result of bundles and unzerbrechlich tests"

成捆试验参数数值抗摔试验参数数值
打捆数/捆89摔捆数/捆25
散捆数/捆2摔散捆数/捆4
成捆率/%97.8抗摔率/%84.0
标准值/%≥98标准值/%≥90

Table 4

Result of bundles size measure"

序号直径×长度/ （mm×mm）序号直径×长度/ （mm×mm）
1572×46511568×493
2583×49412542×474
3566×49213605×491
4585×50214579×486
5574×47815572×465
6611×49316562×483
7541×47517553×477
8577×48518611×492
9576×48619578×479
10598×49920564×486

Table 5

Test result of bale density"

序号体积/m3质量/kg密度/（kg·m-3）平均值/（kg·m3）标准值/（kg·m3）
10.5179.8156.5154.1≥115
20.4973.2149.4
30.5894.3162.5
40.5483.0153.7
50.5682.9148.2

Table 6

Test result of wrapping time"

序号2层时间/s3层时间/s
112.517.8
213.118.5
313.919.2
412.418.9
515.220.3
613.518.6
714.419.9
平均值13.619.0
理论值11.417.1
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