JB/T 7883.1-2000 JB/T 7883.1-2000 Technical conditions for rice husk expander JB/T7883.1-2000 Standard download decompression password: www.bzxz.net

ICS65040.20
Machinery Industry Standard of the People's Republic of China
JB/T7883.1-2000
Rice hull expanding machine
Technical specification for machine of expanding rice hull2000-03-30 Issued
JB/T7883.1-2000
State Machinery Industry Bureau
2000-10-01 Implementation
JB/T7883.12000
This standard is a revision of JB/T7883.1-1999 (ZBB92012-89) "Technical Specifications for Rice Hull Expanding Machine". Compared with JB/T7883.1-1999, the main technical content of this standard has been changed as follows: the acceptance rules for factory inspection have been revised to "all requirements of factory inspection must be qualified and the product quality certificate of the manufacturer's inspection department must be attached before it can be shipped out of the factory". This standard replaces JB/T7883.1-1999 from the date of implementation. This standard is proposed and managed by Hohhot Animal Husbandry Machinery Research Institute. The drafting units of this standard are: Hohhot Animal Husbandry Machinery Research Institute, Liaoning Agricultural and Animal Husbandry Machinery Research Institute. The main drafters of this standard are: Hai Yurong, Li Changqin, Cao Xuxian. Mechanical Industry Standard of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Technical Specification for Machine of Expanding Rice Hull
Technical Specification for Machine of Expanding Rice HullJB/T7883.1-2000
Replaces JB/T7883.1—1999
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of rice hull expanders (hereinafter referred to as expanders).
This standard applies to screw expanders.
Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 1184—1996
GB/T 1804—1992
GB/T 4879—1985
GB/T 13306—1991
JB/T 5673—1991
JB/T 7883.2—1999
Technical requirements
General technical requirements
Tolerances of shape and position without indicating tolerance values
General tolerancesTolerances of linear dimensions without indicating tolerances
Rust-proof packaging
Painting of agricultural and forestry tractors and implements
Test methods for rice husk extruder
General technical conditions
The extruder shall comply with the requirements of this standard and be manufactured according to the drawings and technical documents approved through the prescribed procedures. All self-made parts must be inspected and qualified. Purchased parts and cooperative parts must have a certificate of conformity before assembly. The nozzle gap should be adjustable, and its range is 2~7mm. There should be an iron removal device at the feed port.
2 Main technical performance indicators
3.2.1 Under the conditions that the moisture content of rice husk is 15% and the content of rice loquat is not more than 3%, the productivity index of the extruder should meet the requirements of Table 1, and the kilowatt-hour productivity index should meet the requirements of Table 2. Table 1
Diameter of the large end of the conical screw mm
Fine-grained extruded rice husk
Coarse-grained extruded rice husk
Approved by the State Machinery Industry Bureau on 2000-03-30118
≥190
≥240
≥380
≥580
≥780
≥1000
Implemented on 2000-10-01
Diameter of the large end of the conical screw
Fine-grained extruded rice husk
Coarse-grained extruded rice husk
The working life of the conical screw shall not be less than 120h.
JB/T 7883.12000
When the extruder is in normal operation, the noise Lp shall not exceed 85dB (A). 150
The puffing rate of fine-grain puffed rice husk shall not be less than 90%, and the puffing rate of coarse-grain puffed rice husk shall not be less than 70%. The first trouble-free operation time of the puffing machine is 120h. Technical requirements for main parts
Material and heat treatment requirements of main parts shall meet the requirements of Table 3. Table 3
Part name
Dimension screw
Other requirements
25GrMo3
kg/ (kW·h)
Heat treatment requirements
Outer surface floating fire 62-65HRC
Inner surface local fire 48-50HRC
Inner surface floating fire 48-50HRC
The unmarked dimensional tolerances of the processing parts of each part are manufactured according to the IT14 grade precision in GB/T1804: the unmarked shape and position tolerances are manufactured according to the 12 grade precision in GB/T1184.
2 All castings and welds are not allowed to have cracks, pores, slag inclusions, burn-through, false welding and leakage welding that affect the appearance and reduce the strength. 3.4. 2
Welding dimension tolerances are manufactured according to the IT18 grade precision in GB/T1804. 3.4. 3
The temperature rise at the bearing should be less than 15℃ when running idly, and the temperature rise should be less than 35℃ when loaded.
Installation requirements
The connection of fasteners must be firm and reliable. All connecting parts and
The gap of the nozzle should be evenly hooked and symmetrical, and the difference between the maximum radial gap and the minimum radial gap should be less than 0.3mm. The feeder shaft and rotating cover should rotate flexibly without sticking. After assembly, the main shaft and
lubricating parts should be lubricated with lubricating oil or grease. The rust prevention requirements of exposed surfaces, accessories and spare parts should comply with the regulations of GB/T4879. The transmission device must have a protective cover.
Appearance quality shall meet the following requirements:
a) The outer surface of the extruder shall be smooth and flat; b) The painting shall meet the requirements of ordinary weather-resistant coatings in JB/T5673. It is allowed to select paint according to the requirements of the user, but the quality of the paint shall not be lower than the requirements of the above standards.
Test method
The test method shall be in accordance with the provisions of JB/T7883.2. 2
Inspection rules
Factory inspection
JB/T 7883.1-2000
5.1.1After the extruder is assembled, each extruder shall be operated at rated speed for no less than 10 minutes without any abnormal sound, and the connecting parts and fasteners shall not be loose. 5.1.2Other requirements shall meet the requirements of 3.5.2, 3.5.3 and 3.5.4. 5.1.3 Type inspection
Type inspection should be carried out in any of the following situations: a) When the product is transferred to another factory for production;
b) After formal production, when the product structure, materials, and process have changed significantly, which may affect the product performance; c) When production is resumed after a long period of suspension;
d) When the contract stipulates that type inspection is required; e) When the national quality supervision agency proposes type inspection requirements. : Acceptance rules
All requirements of factory inspection must be met, and the product quality certificate of the manufacturer's inspection department must be attached before it can be shipped. 5.2. 2
The ordering unit has the right to review whether the technical performance (or production test) indicators are qualified in accordance with the provisions of Chapter 3. The sampling plan and judgment rules shall be negotiated with the supplier.
Marking, packaging, transportation and storage
6.1.1 The extruder should have conspicuous signs such as lubrication, operation, rotation direction and safety. 6.1. 2
Each machine shall be equipped with a product label in a conspicuous position, and its size and technical requirements shall comply with the provisions of GBT13306. 6.1.3 The basic contents of the product label include: a) Manufacturer name; b) Product name: c) Trademark; d) Product model or mark: e) Manufacturing date or production batch number; D Main motor power. 2 Packaging and transportation 6.2.1 The extruder shall be packed in boxes. The bottom of the machine shall be fixed on the sleepers and shall not be inverted. The packaging shall be equipped with moisture-proof measures. 6. 2. 2
The packaging must be firm and reliable and shall meet the requirements of transportation and loading. 6.2.3 The outer wall of the package should have obvious text marks or symbols. The content includes: a) Manufacturer name:
b) Product name, specification, model:
c) Receiving unit, address:
d) Quality, box number, outer dimensions;
e) Lifting line, center of gravity, "Do not invert" and other words and symbols. There are 2 pages left to read. Do you want to continue reading?
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4 The accessories, spare parts and tools supplied randomly should be complete. 6.2. 4
6.2.5 Each extruder should be accompanied by the following documents: a) Product quality certificate;
b) Instruction manual:
c) Packing list:
d) Three-guarantee certificate.
6.2.6 The packaging for export shall comply with the relevant regulations of the foreign trade department. Storage
6.3.1 The product should be stored with good ventilation and moisture-proof facilities. 6.3.2
The bottom of the product should be supported when stored.
Manufacturer's guarantee
If the user complies with the storage and use conditions specified in the instruction manual of the extruder and is damaged due to poor manufacturing quality within the one-year warranty period, its seller, repairer, and manufacturer shall be responsible for repair, replacement, and return in accordance with the requirements of the "Regulations on the Responsibility of Repair, Replacement, and Return of Agricultural Machinery Products". bzxz.net
People's Republic of China
Mechanical Industry Standard
Technical Specifications for Rice Husk Extruder
JB/T 7883.12000
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2, Shouti South Road, Beijing
Postal Code 100044)
Sheet 1/2 Words 10,000
Format 880X1230
First edition in August 2000
First printing in August 2000
Print run 1500
Price 10.00 Yuan
2000069
Mechanical Industry Standard Service Network: http:/iwwwJB.ac.cn000288
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