This standard specifies the performance test and production test methods for seed separators. JB/T 7291-1994 Seed spiral separator test method JB/T7291-1994 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T 7291--94
Seed spiral separator
Published on 1994-07-18
Test method
Implemented on 1995-07-01
Ministry of Machinery Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Seed spiral separator test method
1 Subject content and scope of application
This standard specifies the performance test and production test methods of seed separators. JB/T7291--94
This standard is applicable to the test of round or round seeds in leguminous forage seeds, and also to the test of round or oval seeds in grains, vegetables, flowers, trees and other seeds.
2 Reference standards
GB2930
GB3543
GB4404
GB5667
GB5748
GB6141
GB8079
3 Test conditions
Test site
Inspection procedures for forage seeds
Inspection procedures for crop seeds
Grain seeds
Test methods for agricultural machinery production
Determination methods for dust in the air of the workplace
Main cultivated forage grass seeds of the Leguminosae Quality classification Vegetable seeds
The test site should be selected in a room with a flat and solid floor. The machine should be installed on the ground with a space height of not less than 4m and an area of ​​not less than 10m.
3.2 Test Prototype
Before the test, the machine should be installed and debugged according to the instructions to make it reach normal working condition. Determine the main technical parameters of the prototype, and record the results in Table 1; record the adjustment results of the relevant parts of the prototype in Table 2; conduct preliminary tests on the parts to be tested. The results are recorded in Table 3.3 Test Materials
The materials used for the test should be seeds suitable for spiral separator sorting. The original purity of grain seeds, vegetable seeds and forage seeds should reach the third level or above specified in GB4404: GB8079 and GB6141 respectively. The moisture content of the seeds used for the test should comply with the provisions of GB4404 for grain seeds, GB8079 for vegetable seeds, and GB2930 for forage seeds.
Before the test, the original purity and dry grain weight of the test seeds should be initially measured. The sampling method and the determination method shall be carried out in accordance with the methods specified in GB3543, GB2930 and GB8079, and the results shall be recorded in Table 4. 3.4 Test instruments, equipment and tools
For details of the test instruments, equipment and tools, please refer to Appendix A (reference). The instruments and equipment used must be within the calibration cycle. 4 Performance test
4.1 Test purpose
The performance index and technical and economic index of the machine shall be evaluated through the test. Approved by the Ministry of Machinery Industry on July 18, 1994
Implementation on July 1, 1995
4.2 Test requirements
JB/T 7291-~94
During the performance test, the working state of the machine shall not be changed, and the determination of various indicators shall be carried out at the same time. The duration of performance test shall not be less than 30min. The sampling quantity shall be 100～2000g (depending on the crop variety), and the number of repetitions shall not be less than 3 times. The average value shall be calculated. 4.3 Test content and method
The performance test results shall be recorded in Table 5.
4.3.1 Productivity
When the machine is in normal continuous operation, weigh the sum of the weight of the materials discharged from each outlet of the spiral separator during the measurement time, and calculate it according to the following formula: E
Where: E—Productivity, kg/h;
ZEs——The sum of the weight of the materials discharged from each outlet during the measurement time, kg; t—Measurement time, h.
4.3.2 Clarity
From the samples for measuring productivity, samples shall be taken for clarity inspection. The sampling and measurement methods shall be carried out in accordance with the provisions of Article 4.2 of GB3543 and Chapter 4 of GB2930.
4.3.3 The method for determining thousand-grain weight is the same as that in Article 3.3 of this standard. The results of cleanliness and dry grain weight determination are recorded in Table 5. 4.3.4 Good seed content in the secondary seed outlet
During the determination time, determine the weight of good seeds discharged from the secondary seed outlet as a percentage of the sample weight. Gs
Where: S2 Good seed content in the secondary seed outlet, %G2—sample weight+g:
Gs——weight of good seeds in the secondary seed, g. 4.3.5 Dust concentration
Carry out in accordance with the provisions of GB5748.
5 Production test
5.1 Test purpose
Evaluate the economical use, reliability, performance stability, regional applicability, and convenience of adjustment and maintenance of the machine under production conditions. Safety and durability of wearing parts.
5.2 Test requirements
5.2.1 There shall be no less than 2 production test prototypes. 5.2.2 The assessment time of the production test shall not be less than 40 hours. 5.3 Test content
5.3.1 During the production test, three operation quality checks shall be carried out at an interval of 10 hours. The check content includes productivity, purity, and the content of good seeds in the second seed export. The check shall be carried out according to the methods specified in Articles 4.3.1, 4.3.2 and 4.3.3 of this standard, and the results shall be recorded in Table 6. Random records and fault records shall be made during the production test, and the results shall be recorded in Tables 7 and 8. 5.3.2 During the production test, a real-time record shall be made, from which the operation time and non-operation time shall be sorted out, and the results shall be recorded in Table 6. la. Pure working time
Operation time
Time classification
b. Process time
Jc, adjustment and maintenance time
Non-operation time.
ld.Machine failure time
JB/T 7291-94
5.3.3 Calculation of technical and economic indicators, the results are recorded in Table 9. According to the method specified in GB5667, calculate the pure working hour productivity, operation hour productivity, shift hour productivity, man-hour productivity, reliability of use, convenience of adjustment and maintenance, shift time utilization and operation cost. 5.3.4 After the production test is completed, retest the wearing parts that need to be evaluated. The results are recorded in Table 3. 6
Test report
After the test is completed, the test results should be sorted out and summarized and fully discussed by relevant personnel.After comprehensive analysis, a test report is put forward, and its contents are as follows:
Overview: test purpose, test time, location, number of machines, responsible and participating units, etc.: Machine introduction: machine structure, working principle and main features, etc.; Test conditions and analysis;
Test results and analysis;
Existing problems and improvement suggestions;
Conclusion and opinions;
The test report should be accompanied by relevant data, charts, photos, etc. Table 1 Machine technical status measurement table
Machine name and model:
Measurement point:
Overall dimensions of the whole machine
(length×width×height)
Outer spiral diameter
Inner spiral diameter
Screw blade generatrix inclination
Machine weight
Measurer:
mmXmmXmm
Recorder:
Measurement date:
Design data
Verifier:
Machine name and model:
Measurement location:
Adjuster:
Material name
Machine name and model:
Measurement location:
Name or code
Measurer:
Machine name and model:
Measurement location:
Number of repetitions
Measurer:
JB/T7291-94
Table 2 Machine adjustment record
Measurement date:
Material inlet valve opening
Recorder:
Table 3 Main parts and wearing parts wear degree recordMachine number:
Measurement date:
Parts diagram
Or measurement part
Recorder:
Measurement part size
Before test
After test
Table 4 Material initial measurement record
Material quality Type and name:
Date of measurement:
Thousand-grain weight
Recorder;
Position of baffle at the discharge port
Verifier:
Measurement weight
Verifier:
Verifier:
Work volume or
Work time
Machine name and model:
Date of measurement:
Material type
Determination number
Number of repetitions
Number of repetitions
Measurer:
Work time
Machine name and model:
Measurement location:
Productivity
To enter the most
Productivity||t t||Sample weight
Pure working time
Operating time
Time consumption
Non-operating
Time
Productivity
Production verification
Operator:
Process service time
Adjustment and maintenance time
Machine failure time
Pure hourly productivity
Shift hourly productivity
Productivity
Content of good seeds in second seed export
JB/T7291-94
Performance measurement record sheet
Measurement location:
Good seed export
Good seed electricity
Thousand-grain weight
Recorder.
Sample weight
Middle outlet
Good seed weight
Thousand-grain weight
Sample weight
Record sheet for production test in each shift
Machine number:
Measurement date:
Recorder:
Second seed outlet
Good seed fumigation
Dry grain
Second seed outlet
Good seed contains the highest
Verifier:
Dust concentration
Machine name and model:
Measurement location:
Verifier:
Machine name and model:
Measurement location:
Part name
Accumulated operation time
Fault location
Damage degree
Fault cause
Remedy
Measurer:
Machine name and model:
Measurement location:
Pure hourly productivity
Productivity
Operation hourly productivity
Shift hourly productivity
Working hourly productivity
Reliability of use
Ease of adjustment and maintenance
Shift time utilization
Collator:
JB/T 7291-94
Table 7 Production test record
Machine number:
Measurement date:
h·min
Recorder:
Table 8 Machine failure record
Machine number:
Measurement date:
Recorder:
Table 9 Summary of technical and economic indicators of production testMachine number:
Summary date:bzxz.net
kg/working hour
Recorder:
Test results
Instruments, meters and tools required for the test
JB/T7291-94
Appendix A
Instruments, meters and tools required for the test
(reference)||t t||Sampling tools (sampler, sampling tray, sample bag, etc.) Sample divider
Bench scale (5kg)
Seed sieve
Forge, bone spoon
Vernier caliper (accuracy 0.02)
Drying box, cooler
Dust collector
Balance (sensitivity 1/10, 1/100)
Camera
Steel measuring tape (2m)
Steel ruler (300mm)
Repair tools
Anglometer (0~360°)
Calculator
Additional instructions:
1 each
1 each
This standard was proposed and managed by the Hohhot Animal Husbandry Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by Hohhot Animal Machinery Research Institute and the main drafter of this standard is Mi Cailin.02）
Drying box, cooling device
Dust collector
Balance (sensitivity 1/10, 1/100)
Camera
Steel tape measure (2m)
Steel ruler (300mm)
Repair tools
Anglometer (0~360°)
Calculator
Additional instructions:
1 each
1 each
This standard was proposed and managed by the Hohhot Animal Husbandry Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Hohhot Animal Husbandry Machinery Research Institute. The main drafter of this standard was Mi Cailin.02）
Drying box, cooling device
Dust collector
Balance (sensitivity 1/10, 1/100)
Camera
Steel tape measure (2m)
Steel plate ruler (300mm)
Repair tools
Anglometer (0~360°)
Calculator
Additional instructions:
1 each
1 each
This standard was proposed and managed by the Hohhot Animal Husbandry Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Hohhot Animal Husbandry Machinery Research Institute. The main drafter of this standard was Mi Cailin.
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