JB/T 7862.3—2001 This standard is a revision of JB/T 7862.3—1995 “Blade Pressers for Agricultural Machinery Cutter”. The main technical content changes are as follows: ——Added and adjusted the types of pressers; ——Adjusted the technical requirements, inspection rules and other contents. This standard specifies the main structural features, technical requirements, inspection rules and marking, packaging, transportation and storage of blade pressers for agricultural machinery cutters. This standard is applicable to blade pressers for agricultural machinery cutters. The previous versions of the standards replaced by this standard are: ——NJ 11—63, GB 1212—75, GB 1212—86, JB/T 7862.3—95; ——NJ 206—80, GB 1212—86, JB/T 7862.3—95. JB/T 7862.3-2001 Cutter blade press for agricultural machinery JB/T7862.3-2001 Standard download decompression password: www.bzxz.net

ICS 65. 060. 50
Machinery Industry Standard of the People's Republic of China
JB/T7862.3-2001
Agricultural Machinery
Knife Clips of Cutter Bars
Knife Clips of Cutter Bars for Agricultural Machinery2001-09-03Promulgated
China Machinery Industry Federation
2001-12-01Implementation
JB/T7862.3—2001
This standard is a revision of JB/T78623-1995 "Knife Clips of Cutter Bars for Agricultural Machinery". Compared with B/T78623-1995, the main technical contents of this standard are as follows: 1. Type VI knife clips are added, and Type IV knife clips are adjusted; 2. The technical requirements, inspection rules, and the contents of marking, packaging, transportation and storage are adjusted. This standard replaces JB/T78623-1995 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. The responsible drafting units of this standard are: China Agricultural Mechanization Science Research Institute, Shandong Liangshan Machinery General Factory. The main drafters of this standard are: Zhou Chunlin, Li Zhiqing, Gao Yuzhu. The previous versions replaced by this standard are: -NT11-1963, GB1212-1975, GB1212-1986, JB/T78623-1995; -NI206-1980, GB1212-1986, JB/T7862.3-1995. 1 Scope
Machinery Industry Standard of the People's Republic of China
Agricultural Machinery
Knife Clips of Cutter Bars for Agricultural Machinery JB/T 7862.3-2001
Replaces JB/T7862.3-1995
This standard specifies the main structural features, technical requirements, inspection rules, marking, packaging, transportation and storage of the knife clips of agricultural machinery cutters (hereinafter referred to as knife clips). This standard applies to the knife clips of agricultural machinery cutters. Cited standards
The clauses contained in the following standards constitute the clauses of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 93—1987
GB/T710—1991
GB/T2828—1987
GB/T5783—2000
GB/T9439—1988
Types and basic dimensions
Standard spring washers
Batch inspection counting sampling procedures and sampling tables for hot-rolled thin steel plates and strips of high-quality carbon structural steel (applicable to inspection of continuous batches) Hexagon head bolts with full thread A and Grade B
Gray iron castings
3.1 There are six types of blade pressers:
Type I: Applicable to Type I cutters;
Type II: Applicable to Type III cutters;
Type IIIII: Applicable to Type II cutters;
Type IV: Applicable to Type IV cutters;
Type V: Applicable to Type V cutters;
Type VI: Including Type VIa, VIb and VIc blade pressers, applicable to Type VI cutters. The basic types and dimensions of blade pressers shall comply with the requirements of Figures 1 to 6 and Tables 1 to 3. 3.2
Approved by China Machinery Industry Federation on September 3, 2001 and implemented on December 1, 2001
JB/T7862.3—2001
Pinghuo District
Type I Blade Presser
Jiangming Extinguishing District
Figure 2Type II Blade Presser
JB/T 7862.3—2001
Pingda District
Figure 3Type II Blade Presser
Haibei District
Figure 4Type IV Blade Presser
Figure 5Type V Blade Presser
Part Name
Blade Pressing Iron
Blade Pressing Plate
7862.3—2001
2 ×$10
5VI type blade press
M16×10
Table 2 Specifications of VIa, VIb and VIc type blade presses Blade press type
3V type blade press parts
Part name
Blade press iron
Blade press plate
GB/T5783
GB/T 93
A2 in Appendix A
A1 in Appendix A
GB/T869
3.3 Marking Example
1 Type Blade Presser
Blade Presser 1JB/7862.3—2001
4 Technical Requirements
JB/T7862.3—2001
4.1 Blade pressers shall comply with the requirements of this standard and be manufactured according to drawings and technical documents approved by the prescribed procedures. 4.2 Type I, II, IIIII, IV and VI blade pressers shall be manufactured using 40 steel plates or 35Mn steel plates specified in GB/T710, and V-type blade pressers shall comply with the provisions of Appendix A (Appendix to the Standard). The friction surface of the steel blade presser shall be heat treated, which can be localized or fully quenched, and its hardness shall be 35~45HRC.
4.3 The surface of the blade press should be smooth, without delamination and burrs, and cracks are not allowed. 4.4 The structural dimensions of the blade press can be changed under the premise of ensuring interchangeability. 5 Inspection rules
5.1 Factory inspection
5.1.1 Inspection items and indicators are determined according to the technical requirements, product drawings or order contracts specified in this standard. 5.1.2 Batch-produced blade presses should pass the inspection and be accompanied by product certificates. 5.1.3 Blade presses should be submitted for acceptance in batches. Each batch should be fully inspected for appearance, and sampled for size, material and mechanical properties in accordance with the provisions of GB/2828. The specific inspection plan should be carried out in accordance with the secondary normal inspection sampling plan specified in GB/2828, and the qualified quality level (AQL) is 4.0.
5.2 Final inspection
The blade press must be subject to final inspection by the quality inspection department of the manufacturer in accordance with the order contract. 6 Marking, packaging, transportation and storage
6.1 The manufacturer's trademark and model should be forged, cast or punched on the blade press. 6.2 When shipping blade presses separately, the weight of each package shall not exceed 5dkg6.3 The outside of the package shall be marked with:
a) Name, model and quantity of the blade press;
b) Weight;
c) Name of the manufacturer;
d) Product standard number;
e) Factory number and date of manufacture;
f) Storage and transportation mark.
6.4 The manufacturer's product certificate should be attached to the package. 6.5 Measures should be taken to prevent loss or damage during transportation and loading and unloading. 5 Measures should be taken to prevent rust and damage during storage. 6.6
JB/T7862.3—2001
Appendix A
(Appendix of the standard)
V-type blade presser
The V-type blade presser consists of a blade presser plate and a blade presser iron, and its dimensions shall comply with the provisions of Figure A1 and Figure A2. A1
Blade presser plate
4 × 45°
No. 08+8
Figure A2 Blade presser iron
7°8-2
Blade presser plate is made of 45 steel plate not lower than that specified in GBT710. Blade presser iron is cast with HT150 specified in GB/T9439. A2
The hardness of the friction surface of blade presser iron is 217~227HB. 6
Mechanical Industry Standard
Blade Press for Agricultural Machinery Cutter
JB/T786232001
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)*
1/16 Printing Sheet 3/4
4 Words 14,000
Format 880×1230
First Edition in December 2001
First Printing in December 2001bzxZ.net
Print Quantity 1-500
Price 12.00 Yuan
2001-149
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