This standard specifies the quality indicators, testing methods and inspection rules for straw returners. This standard is applicable to the quality assessment of straw returners for crops such as wheat and corn. NY/T 500-2002 Quality of straw returners NY/T500-2002 Standard download decompression password: www.bzxz.net

Agricultural Industry Standard of the People's Republic of China
NY/T 500—2002
Operating quality for rrup straw returning-back-to field machine2002-01-04 Issued
2002-02-01 Implementation
Issued by the Ministry of Agriculture of the People's Republic of China
NYr5002002
This standard is proposed by the Agricultural Machinery Management Department of the Ministry of Agriculture. This standard is under the jurisdiction of the Agricultural Machinery Technical Committee of the South China Agricultural Machinery Standardization Technical Committee. This standard is initiated by the Agricultural Machinery Promotion Station of Xuzhou City, Heilongjiang Agricultural Machinery Application Research Institute, and Dachang Jingkang Machinery Development Co., Ltd.
The main drafters of this standard are: Jia Jun, Xiang Junhong, Li Jizhou, Pang Xiangjie, Zheng Baoguang, Pu Jiachen, and Kao Ekuan. 1. Agricultural Industry Standard of the People's Republic of China
Operating quality for crop straw returning machine
Operating quality for crop straw returning machine This standard specifies the operating quality indicators, testing methods and inspection rules for straw returning machine. This standard is applicable to the operating quality assessment of straw returning machine for competitive and corn crops. 2. Referenced Standards
NY/T 500—2002
The provisions contained in the following standards are constitutively referred to in this standard as the main provisions of this standard. When this standard is published, the versions shown are valid. All standards may be revised. All parties using this standard should explore the possibility of using the latest versions of the following standards. GI/T2H28.187 Inspection and counting procedures for batch inspection (applicable to inspection of continuous batches) GB/T5262-1985 Carbon industry machine root ageing conditions determination method - clause 3 Definitions
This standard adopts the following definitions.
3.1 Qualified chopped length
The qualified length of the stalk.
3.2 Qualified chopped width
The qualified width after the stalk is cut.
3.3 Residue height
The width of the stalk from the top to the ground after the operation. The measurement basis for cropping is 1.3.4 Chopped length qualified rate
The percentage of chopped length qualified stalks in the total stalks. 3.5 Uneven throwing
The degree of unevenness of the straw after cutting. 3.6 The required cutting rate
The percentage of white content in the total quality of the straw. 4 Operation quality indicators
4.1 The operation quality indicators specified in this standard are determined under the following general operating conditions: The straw harvester operates under the conditions of 10% moisture content of the straw and 20-30% moisture content of the 5-meter straw. 4.2-- Under light operation conditions, the operation quality indicators of the straw harvester shall comply with the provisions of Table 1. 4.3 If the operating conditions do not meet the requirements of 4.1, the service provider and the service recipient may negotiate to modify the indicators in Table 1 of 4.2. Ministry of Agriculture of the People's Republic of China 2002-01- Approved 2002-02 -01 implementation
cut to length,
shredding,bb
cutting section chief,
sexual height, mm
hold uneven car,
cutting rate,
collection store work source
5 inspection methods
NY/T500—2002
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thin seeds are evenly broken and the industry reaches soft, sexual, no cause and engraved section, rise and even, no courtesy cultivation accumulation profit strip rent sticky open return machine operation quality inspection one by one should be carried out at a distance from the mechanical operation, and before returning to the field operation, press and adjust according to GE/work 5262 Food: Brush to get the sound of water, etc.
5.1 Sampling method
After the field operation, 5 points are selected at equal intervals on the diagonal line in the inspection area: The points should be selected to avoid the land and the head of the land: According to the actual working width, the head of the pool is connected to the unit area for calculation, and each point is 2m long, which is a small area with actual working width. The sampling inspection is carried out in the small area according to GB/T2825. The sampling inspection is carried out according to the sampling process of the belt, and the special inspection level is adopted. $-1.5.1.2 In a piece of land, take the center of the long side and the wide side of the plot to divide it into 4 pieces, and then take 2 pieces on the diagonal line as samples. 5.2 Inspection method
5.2.1 Determination of the speed of the workpiece
Each point is located in a machine working width, and the height of the right point is measured. The average value is the residual standard quotient at this point. Find the average value of the three points.
5.2.? Determination of the qualified rate of shredded length
Randomly select 1 point, enclose all and weigh its excess, and estimate the quality of the shredded length from which the unqualified stalks are shredded. When determining the quality of the stalks, the shredded length of the stalks shall be calculated by using the following formula (1):
Where: Fh
Qualified rate of shredded length;
Measurement point data and quality control in the measurement area
Sn. . × 100
The number of unqualified straw quality points in the measurement area is %, 5.2.2.2 The uneven rate of handling
The uneven rate of spreading is calculated according to formula 2) (3>: W
The average quality of straw at each point in the measurement area is F
(2)
N; The number of measurement points in each measurement area:
F The uneven rate of batches, %
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NYT 500
The maximum value of the sticky quality of the measuring points in the measurement area is the minimum value of the sticky quality of the measuring points in the measurement area: 5. 2. 3. The leakage cutting rate is about
. The leakage cutting rate is calculated by formula (4)
m×100
. The total amount of fine rods per square meter is:
The required amount of ground rods per square meter is -8.
6 Inspection rules
6.1 Classification of unqualified items
All items that do not meet the requirements of Section 4 of this standard are considered unqualified, excluding those classified as A and 1. The classification of unqualified items is shown in Table 2. Table 2 Classification of qualified items
Classification of unqualified items
Note:
6.2 Judgment See Then
Project name
Grid length mm
Cut length qualifiedbzxZ.net
Not qualified
Grid cutting group width,: 0:0
Height 00
Daytime conditions after operation
6.2-1 Oil sample judgment plan (see Table 3> judgment. In the table, S] is the inspection level, AQL is the qualified quality level. 4 is the combined demarcation number, R, is the technical qualified judgment number,
Sampling judgment plan
Control the direct vehicle
And the local number (a)
Function number
Unclassified
Nature and property will
Qualified measured water-AG
Qualified agent number 1.
Unqualified state determination R
According to Table 2
NY/T 500
6-2.2 When the number of items changes, the AQL value changes slightly. 6.2.3 Use the method of item by item, and evaluate by category. When the number of unqualified items in the sample is less than or equal to the qualified judgment number A, it is evaluated as qualified. When it is greater than or equal to the qualified number R, it is evaluated as unqualified. Both categories A and B are qualified, and the number of work items is comprehensive.
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