Some standard content:
ICS65.060.30
B91
JB
Machinery Industry Standard of the People's Republic of China
JB/T6274.1-2001
Grain Seeder||tt| |Technical conditions
Specifications for grain drill2001-06-22 released
China Machinery Industry Federation
Released
Implemented on 2001-10-01
JB /T6274.1-2001
Foreword
This standard is a revision of B/T6274.1-1992 "Technical Conditions for Grain Seeders". Compared with JB/T6274.1-1992, the main technical content of this standard has changed as follows: - The scope of application is further clarified:
The technical requirements have been adjusted;
Added detection and determination.
This standard replaces B/T6274.1-1992 from the date of implementation. Appendix A of this standard is the appendix of the standard
This standard is proposed and managed by the National Agricultural Machinery Standardization Technical Committee. This standard was drafted by: Chinese Academy of Agricultural Mechanization Sciences, Shijiazhuang Agricultural Machinery Co., Ltd., Shandong Huari Group Corporation, Harbin Agricultural Machinery Factory, and Xuchang County Agricultural Machinery General Factory. The main drafters of this standard: Shen Yongning, Han Yingzhi, Liu Naidong, Haodiansheng, Liu Shaolin. This standard was first released as NJJ3-63 in 1963, revised for the first time as NJ166-78 in 1978, and revised for the second time as JB/T6274.1-1992 in June 1992. This is the third revision. 1 Scope
Machine Industry Standard of the People's Republic of China
Technical Conditions for Grain Seeders
Specificats for grain drillJB/T6274.1-2001
Replaces B/T6274.1— 1992
This standard specifies the technical requirements, safety requirements, test methods, inspection rules, marking, packaging, transportation and storage of grain seeders. This standard applies to machine-guided grain fertilizing seeders (hereinafter referred to as seeders) that use external groove wheel type seed metering devices, external groove wheel type or star wheel type fertilizer metering devices, and are used to sow grains and spread chemical fertilizers at the same time. Other types of grain seeders can be implemented as a reference. 2 Referenced standards
The provisions contained in the following standards constitute provisions of this standard by being quoted in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB/T 699—1999
GB/T 1243—1997
GB/T 2828—1987
GB/T 5269—1999
GB/T 9478—1988
GB10395.9—1996
GB 10396—1999
GB/T13306—1991
JB/T5673—1991
JB/T6274.2— 1992
JB/T 9783—1999
JB/T98322—1999
YB/T 5059—1993
3 Technical requirements
High quality carbon structure Steel
Precision roller chains and sprockets for short-pitch transmission Batch-by-batch inspection and counting sampling procedures and sampling tables (applicable to inspection of continuous batches) Double-pitch precision roller chains and sprockets for transmission and conveyance Grain Test methods for seed drills
Technical safety requirements for agricultural and forestry tractors and machinery Part 9: General provisions for safety signs and hazardous graphic signs of agricultural and forestry tractors and machinery, lawn and garden power machinery for sowing, planting and fertilizing machinery
Agricultural and forestry tractors General technical conditions for painting of agricultural and forestry tractors and equipment Double-disc trench opener for grain seeders | Cold-rolled steel strip
3.1 The seeder shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 3.2 Seeders of the same model or the same parts and components must ensure their versatility and interchangeability. 3.3 Performance indicators
3.3.1 The seeding performance of the seeder is within the specified displacement of wheat 150~180kg/hm2 (10~12kg/acre) and soybean 60~75kg/hm2 (4~5kg/acre) , under the conditions of millet 6~9kg/hm2 (0.4~0.6kg temple), it should comply with the requirements of Table 1. China Machinery Industry Federation 2001-06-22 approved the implementation of 2001-10.01
1
item
item
variation coefficient of consistency of each row's displacement
Total displacement stability coefficient of variation
Seed damage rate
JB/T 6274.1-2001
Table 1
Wheat
≤39||tt| |≤13
≤05
谷
子
≤5.2
≤2.6
大
豆|| tt||≤6.5
≤3.9
≤1.0
%
3.3.2 The seeding rate of the seeder is 150~180kg/hm2 (10~12kg/ acres), the working row spacing is 15cm, and when sowing wheat at an operating speed of 4~km/h, the coefficient of variation of sowing uniformity should not be greater than 45%. 3.3.3 When the soil preparation quality meets the sowing requirements, the sowing depth qualification rate shall not be less than 75% (based on local agronomic requirements, the sowing depth is h. When h ≥ 3cm, h ± 1 am is qualified; when k 3 am, h ± 0.5 cm is considered qualified. qualified). 3.3.4 For the fertilizer discharge performance of the seeder, when the moisture content of granular fertilizer does not exceed 12% and the moisture content of small crystal powder fertilizer does not exceed 2%, the fertilizer discharge rate is 150~180kg/hm? (10~12kg/acre) ), should comply with the provisions of Table 2. Table 2
item
item
consistency coefficient of variation of fertilizer discharge in each row
stability coefficient of variation of total fertilizer discharge
3.4 ??reliability|| tt||3.4.1 The reliability (effectiveness) of the seeder shall not be less than 90%. Scaling number
value
refers to
≤130
≤7.8
%
3.4.2 Average workload before the first failure of the seeder : Seeders matched with tractors greater than 15kW should be no less than 25hm/m, and seeders matched with tractors less than or equal to 15kW should be no less than 20hm/m. 3.5 Technical requirements for main parts
3.5.1 The shovel tip of the shovel type trencher is made of 65Mn steel specified in GB/T699, and the heat treatment hardness of the working surface of the shovel tip is 40~50HRC. It is allowed to be made of other materials with performance not inferior to the above-mentioned materials. 3.5.2 Rubber corrugated seed and fertilizer conveying pipes should be able to work normally in the temperature range of 0~40℃, and the cold brittle temperature should not be higher than -30℃. Spiral coiled seed and fertilizer conveying pipes should be made of 08F low carbon steel cold-rolled steel strips specified in YB/T5059. After processing, heat treatment is required to eliminate internal stress. Stretch 30% of the free length for three consecutive times. The permanent deformation should not be greater than 1% of the free length. 3.5.3 The roller chain should comply with the regulations of GB/T1243. The double-pitch roller chain should comply with the regulations of GB/T5269. 3.6 Technical requirements for main components
The external grooved wheel seed metering device shall comply with the provisions of B/T9783, and other external grooved wheel seed metering devices may be implemented as a reference. 3.6. 1
3.6.2
3.6.3
2
The double disc trencher shall comply with the regulations of JB/T6274.2. After the frame is welded, the parallelism between the beams and the difference in diagonal size of the frame should comply with the provisions of Table 3. Table 3
The length of the beam
m
≤ 15
>1.5-2.5
>25
Difference in parallelism and size
mm
≤30
≤45|| tt||≤60
3.6.4
3.6.5
JB/T6274.1-2001
When the seed box is not filled with seeds, the resistance moment of the seeding shaft should not be greater than the requirements in Table 4. Table 4
The number of seeding devices on the same seeding shaft||tt| |≤12
≥13
Resistance torque of the seeding shaft
N·m
10
15
When the fertilizer tank is not When loading fertilizer, the resistance moment of the fertilizer discharge shaft should not be greater than the requirements in Table 5. Table 5
The number of fertilizer dischargers on the same fertilizer discharge shaft
≤12
13
The resistance moment of the fertilizer discharge shaft
N·m| |tt||20
30
5 The operation of the broadcast volume adjustment lever should be light and flexible, and its adjustment force should not be greater than 100N. When the blocking sleeve closes all the seeding ports, the adjusting lever 3.6.6
should be pointed at the "0" scale line on the indicator plate. When the seeding ports are all opened, it should be pointed at the maximum scale line. The total swimming stroke of the adjusting rod and the calibration error shall not be greater than 2mm from the working length of the sheave. Using a thread-adjusted seeding volume regulator, the total swimming stroke and scale error of the adjustment mechanism shall not be greater than 1.5 mm from the working length of the sheave. 3.6.7 The difference in the working length of the sheave wheels of each seed metering device on the same seed metering shaft at any position shall not be greater than 1 mm. 8. The joint between the seed box and the fertilizer box should not leak seeds or fertilizer, and the local gap between the seed box and the bottom plate of the box should not be greater than 1mm. 3.6.8
3.7 Final assembly technical requirements
3. 7. 1
3. 7. 2
3.7. 3
All parts and components must After passing the inspection, outsourced parts and collaborative parts must have certificates of conformity before they can be assembled. After assembly, the exposed machining surfaces and friction surfaces of the parts should be coated with anti-rust oil. Lifting arms in the same row should be on the same plane, and the difference in height between their ends should not be greater than 5mm. 4. The tightness of the riveting between the opener tie rod and the tie rod joint should enable the opener raised to the highest position to rotate 3. 7. 4
to the lowest position under the action of its own weight.
3. 7. 5
3. 7. 6
3. 7. 7
When in the raised position, the lateral swing amount at the lowest point of the opener is at the forefront Not larger than &mm, the rear row is not larger than 15mm. When in the raised position, the lowest points of the trenchers in the same row should be on the same horizontal plane, and their height differences should comply with the requirements in Table 6. Table 6
Number of openers in the same row
≤12
≥ 13
When the seeder is in the transportation position, the ground clearance should comply with the requirements of Table 7. Table 7
Supported tractor
Traction
Type
Opener height difference
10
15
Hang|| tt||Type
m
mm
3
>15KW
≤151V
Walking Tractor
JB /T6274.1-2001
>150
≥110
90
Note: The ground clearance of old tractor-type seeders matched with tractors above 15kV can be retained. 110mm. ≥ 300 |
3.7.9 The axial offset of the main and passive cylindrical gears and sprockets on the same plane shall not be greater than 2mm. The chain drive should be smooth and the chain should not drop. The end face circular runout and radial circular runout of the ground wheel and supporting wheel should comply with the requirements in Table 8. 3. 7. 10
Table 8
Item
Item
End face circular runout
Radial circular runout
3.8 Painting and Appearance quality
≤600bZxz.net
7
5
wheel
sub
straight
>600~1000|| tt | | 10 | | tt | | 8 | >1000 | , apply one primer and one topcoat, and the total thickness of the paint film should not be less than 40um.
3.8.3 The chemical fertilizer-resistant coating TQ-3-FD specified in JB/5673 should be used in the fertilizer box. The thickness of the coating should not be less than 50um, and the adhesion should not be lower than level IIⅡI. The adhesion inspection method is in accordance with the provisions of JB/T9832.2. 3.8.4 The inner wall of the seed box, the inner wall of the metal seed box, the cast iron seed wheel and the blocking sleeve are allowed to be coated with only primer and no topcoat. The trench opener, embedder, foot pedal, soil returner, ground wheel and track marker disc may not be painted with primer, but only with black or dark topcoat. 3.8.5 The appearance of the seeder should be clean and free of rust. , bruises and other defects. The painted surface should be flat, even and smooth, without defects such as leakage, peeling and peeling.
4 Safety requirements
4.1 The structure of the seeder should be reasonable to ensure that there is no danger when the operator operates and maintains it according to the instructions provided by the manufacturer. Its safety technical requirements should comply with GB10395.9 and GB10396 Regulation. 4.2 Exposed gears and sprocket transmission devices should have strong and reliable protective covers. The protective cover should facilitate the maintenance, maintenance and observation of the machine. The paint color of the protective cover should be different from the color of the whole seeder. 4.3 Planters that require someone to operate on them during operation should be equipped with anti-slip foot pedals with a width of not less than 300mm, and a safety baffle with a height of not less than 75mm at the front end. The height of the pedals from the ground shall not be greater than 300mm. The handrails should be installed on the seed box, and the length of the footrest and handrails should be suitable for the seed box.
The loading height of 4.4 types of fertilizer boxes should not be greater than 1000mm. 4.5 There should be a fixed device when opening the fertilizer tank cover. It should not open by itself due to vibration, bumps or wind during operation. 4.6 In road transportation, the marker should not exceed the specified width of the machine. The track marker should be able to be locked in the transport state. 4.7 In dangerous moving parts, such as seeder lifting, row marker lifting and gear meshing parts, sprocket and chain meshing parts, seed fertilizer 4
JB/T 6274.1-2001
Safety warning signs should be fixed near moving parts (mixers, mixing knives) and other parts. The seeder should remain stable and safe when parked alone. 4.8
The operating instructions should stipulate measures and methods for safe operation and maintenance. 4.9
4.10 Each seeder should be marked with "Caution" and "Do not use during sowing" in an obvious position visible to the driver. "Backward" sign 5 Test methods and inspection rules
5.1 The test of the seeder shall be carried out in accordance with the provisions of GB9478. The operational reliability (effectiveness) of the seeder is measured according to the provisions of GB/T9478, and the average workload before the first failure is measured according to the provisions of Appendix A (Appendix of the Standard). 5.2 The seeder should be conducted with the ground wheels off the ground for an idling test. During operation, the rotation speed of the ground wheels is equivalent to the normal operating speed, and the running time is 5 to 10 minutes. Operate the lifting mechanism to raise and lower the trencher three times, and check the transmission, lifting and clutch connection parts. Each component must not be jammed, deformed or loose.
5.3 The seeder must pass the inspection by the quality inspection department of the manufacturer and be accompanied by a quality certificate before leaving the factory. 5.4 The ordering unit has the right to randomly check product quality in accordance with the requirements of this standard. The sampling plan and qualified quality level (AQL) shall be determined by negotiation between the supply and demand parties in accordance with the provisions of GB/T2828.
5.5 Under any of the following circumstances, the seeder should undergo type testing (performance testing and production testing): a)) New product finalization identification and old products transferred to the factory for production; b) After formal production, such as structure, process, When there are major changes in materials, etc., which may affect the performance of the product; when the wear of tooling and molds may affect the performance of the product; ① When the product is resumed after a long-term shutdown; e) When the factory inspection results are significantly different from the last type test ;f When the national quality supervision agency proposes type testing requirements. 5 Type testing shall be carried out in accordance with all technical requirements and test methods of this standard. 5.6 |71
Class and Table 10 Sampling inspection plan inspection judgment. Table 9
Class
A
B
Class
Item
1
2
3
4
5
1
2
3
4
Item
Safety requirements
Item
Average workload before first failure
Item
Coefficient of variation of seeding amount consistency in each row
Coefficient of variation of sowing uniformity
Seed breakage rate
Coefficient of variation of total seeding amount consistency
Fertilizer performance
Use Reliability (effectiveness)
Sowing depth qualified rate
Table 9 (end)
Item
Name
Title
Title
5
5.8
B
c
Item category
Number of samples
Number of items
Inspection level
AQL
AR
5
6
7
8
1
2
3
4
5
6||tt| |7
8
9
10
11
12
0
JB/T6274.1-2001
Painting, appearance quality
Outer groove wheel seed meter
Consistency of groove wheel working length
Quality of sowing rate adjustment device
Torque of no-load rotation of seed meter shaft
Torque of no-load rotation of fertilizer meter shaft
Reliability and operating force of lifter
The lowest points of the same row of openers in the raised state should be in the same plane. The swing amount of the opener in the raised state
Shovel tip of double disc opener or shovel opener Material and hardnessTransportation clearance
No leakage of seeds and fertilizers at the joint of seed and fertilizer boxes
Axial offset of main and passive gears or sprocketParallelism and diagonal size difference of frame beamsRiveting tightness of opener pull rod and joint
Rubber corrugated seed and fertilizer pipe and spiral roll seed and fertilizer pipe quality table 10
A
5
65
1
Sampling inspection plan
B
2
8
S-1
40
2
Note: AQL remains unchanged when the number of units changes, and Ac and Re values ??are determined according to GB/T2828. Classification of unqualified items
3
3
C
12
65
4
5.8.1 Any item that does not meet the requirements of Chapter 3, Chapter 4 and related standards, drawings and technical documents is called an unqualified item.
5.8.2
Unqualified items are divided into three categories: A, B and C according to their impact on product quality. Category A is the item that has a major impact on product quality, Category B is the item that has a greater impact on product quality, and Category C is the item that has a general impact on product quality. 5.9 Sampling method
5.9.1 Sampling inspection procedure According to the normal sampling plan specified in GB/T2828, the special inspection level S-1 is adopted. 2 Random sampling is adopted, and random sampling is conducted from the products produced in the factory in the past six months (when sampling in the factory, the inventory of complete machines should be no less than 5.9.2
16 units, and this limit is not applicable to the sales department). The samples drawn should be qualified products produced by the factory. 5.9.3 Two samples are drawn for the complete machine assessment.
5.9. 4
6
From the time the sample is drawn and sealed to the end of the inspection work (except for reliability test), no adjustment, repair or replacement shall be allowed except for maintenance and adjustment in accordance with the instructions for use. 5.10 Evaluation principle
JB/T6274.1-2001
Evaluation is conducted item by item. When the number of unqualified items in each category in the sample is less than or equal to the qualified judgment number Ac, the category is judged as qualified. The inspection shall be made according to the inspection plan of each type of sampling. The three types of A, B and C that have passed shall be qualified. 5 Marking, packaging, transportation and storage
6
6.1 Each seeder shall be fixed with a product label in a conspicuous position. The label shall comply with the provisions of GB/T13306 and indicate the following contents: a) Product model and name;
b) Main technical parameters;
c) Product trademark;
① Factory number;
e) Factory date;
\Manufacturer name;
g) Implementation standard code.
2 The seeder can be shipped out of the factory in general assembly or component packaging. The component packaging shall be firm and reliable, and it must be ensured that each component can be assembled without trimming. The parts installed in the seed and fertilizer boxes shall be fixed, and the machine parts shall not be damaged due to vibration or bumps. 6.3 The technical documents accompanying the seed drill shall be packed in waterproof bags, including: a) packing list; b) product quality certificate; c) product instruction manual; d) three-guarantee certificate. 6.4 The product shall be stored in a dry, ventilated room without corrosive gas. When stored outdoors, measures shall be taken to prevent rain, moisture and collision. 71. The sampling inspection procedure is based on the normal sampling plan specified in GB/T2828, using the special inspection level S-1. 2. Random sampling is adopted, and random sampling is used among the products produced by the factory in the past six months (when sampling at the factory, the inventory of the complete machine There should be no less than 5.9.2
16 units (this limit is not required in the sales department). The samples taken should be qualified products produced by the factory. 5.9.3 2 prototype machines will be selected for complete machine assessment.
5.9. 4
6
From the time the prototype is extracted and sealed to the end of the testing work (except for the reliability test), no further adjustments or adjustments are allowed except for maintenance and adjustments in accordance with the instructions for use. Repair and replacement. 5.10 Assessment Principles
JB/T6274.1-2001
adopts item-by-item assessment and assessment. When the number of unqualified items in the sample is less than or equal to the qualified judgment number Ac, the category is judged to be qualified. The inspection should make a pass or fail decision based on each type of sampling inspection plan. Those that pass Category A, B, and C are deemed to be qualified. 5 Marking, packaging, transportation and storage | GB/T13306 regulations, and indicate the following: a) Product model and name;
b) Main technical parameters;
c) Product trademark;
① Factory number; || tt||e) Date of manufacture;
\Manufacturer name;
g) Implementation standard code.
2 The seeder can be shipped from the factory in final assembly or component packaging. The packaging of components should be firm and reliable, and it must be ensured that each component can be assembled in 6.2
without modification. The parts installed in the seed and fertilizer boxes should be fixed and the parts should not be damaged due to vibration and bumps. 6.3 The random technical documents of the seeder should be packed in waterproof bags. The documents include: a) packing list;
b) product quality certificate;
c) product instruction manual;
d) Three guarantee certificate.
6.4 The product should be stored in a dry, ventilated room without corrosive gases. When stored in the open air, measures should be taken to prevent rain, moisture and collision. 7
1 Sampling inspection procedure According to the normal sampling plan specified in GB/T2828, the special inspection level S-1 is adopted. 2 Random sampling is adopted, and random sampling is conducted from the products produced in the factory in the past six months (when sampling in the factory, the inventory of complete machines should be no less than 5.9.2
16 units, and this limit is not applicable to the sales department). The samples drawn should be qualified products produced by the factory. 5.9.3 Two samples are drawn for the complete machine assessment.
5.9. 4
6
From the time the sample is drawn and sealed to the end of the inspection work (except for reliability testing), it shall not be adjusted, repaired or replaced except for maintenance and adjustment in accordance with the instructions for use. 5.10 Evaluation principles
JB/T6274.1-2001
Evaluation is conducted item by item. When the number of unqualified items in each category in the sample is less than or equal to the qualified judgment number Ac, the category is judged as qualified. The inspection shall make a pass or fail decision according to the inspection plan of each type of sampling. The products that have passed the three categories of A, B and C are qualified. 5 Marking, packaging, transportation and storage
6
6.1 Each planter should have a product label fixed in a conspicuous position. The label should comply with the provisions of GB/T13306 and indicate the following contents: a) Product model and name;
b) Main technical parameters;
c) Product trademark;
① Factory number;
e) Factory date;
\Manufacturer name;
g) Implementation standard code.
2 The planter can be shipped in general assembly or component packaging. The component packaging should be firm and reliable, and it must be ensured that each component can be assembled without trimming. The parts installed in the seed and fertilizer boxes should be fixed, and the parts should not be damaged by vibration or bumps. 6.3 The technical documents accompanying the seed drill shall be packed in waterproof bags, including: a) packing list; b) product quality certificate; c) product instruction manual; d) three-guarantee certificate. 6.4 The product shall be stored in a dry, ventilated room without corrosive gas. When stored outdoors, measures shall be taken to prevent rain, moisture and collision. 7
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