JB/T 8774.7-1998 Pipe joints for rubber and polyvinyl chloride cables of machine tool electrical system accessories

JB/T 8774.7-1998 Products produced according to this standard comply with the relevant provisions of GB/T 5226.1-1996 "Electrical Equipment for Machinery Industry Part 1: General Technical Conditions". This standard specifies the main dimensions, markings, technical requirements, tests and inspections of rubber and polyvinyl chloride cable pipe joints (hereinafter referred to as pipe joints), which are accessories for machine tool electrical systems. This standard applies to rubber and polyvinyl chloride cable pipe joints for fixing cables or wires in machine tool electrical systems. It can also be used as a reference for electrical systems of other machines. JB/T 8774.7-1998 Pipe joints for rubber and polyvinyl chloride cables, accessories for machine tool electrical systems JB/T8774.7-1998 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/F8774.1--8774.15—1998
Machine tool electrical system accessories
1998-07-17 Issued
State Machinery Industry Bureau
1998-12-01 Implementation
JBT 8714.7-1998
This standard is formulated based on the experience of many years in producing machine tool electrical system accessories, and is in accordance with the product characteristics of B/T5225.1-1064 Industrial machine electrical equipment Part 1: General technical conditions.
National Metal Closed Machine Tool Standardization Committee proposed that this standard is not for production according to ["Beijing Machine Tool Research Institute of the Ministry of Industry and Information Technology, the standard is issued by the Beijing Machine Tool Research Institute of the Ministry of Machinery Technology, Xiangjiang Ninghai County Donghu Machine Tool Accessories, Beijing No. 1 Machine Factory Beijing No. 1 Machine Tool
Machinery Industry Standard of the People's Republic of China
Machine Tool Electrical System Accessories
Rubber, Polyoxyethylene Cable Pipe Joints
JU/T8774.7-199 8
Specifies the requirements and dimensions, marking, technical requirements, test questions and inspections of the electrical system components of machine tools, such as the replacement of the rubber sheath, the chlorine-free medium and the electrical connector of the following simple rubber sheath:
This standard is applicable to the electrical system of certain cables or wires in machine tools, and can also be used for reference in other electrical systems of machines.
2 Referenced standards
The provisions contained in the international standards are cited in this standard and constitute the text of the standard. The following standards are published, and the versions shown are not all valid: All standards will be revised. The parties concerned should discuss the possible emergence of new versions as soon as possible. CB157-81 GB 694-88 Gn4423-55 GB 7307-87 IEL/T 2575-54 3 Structure Tolerances and Fittings of Through-hole Threads 1--m This quality arbitration case is concluded with an example of a technical case design Copper and copper alloy drawn bars Non-threaded threaded strips of threaded strips Heart-shaped materials Part 1, Common hydraulic system operation structure example See Figure 1. Main dimensions of pipe connections are also shown in Figure 1? Published 1. Approved by the State Bureau of Machinery Industry 180T17
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Fast connector body name
M54×2
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cable outer diameter
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JB/T8774.7-1998
Length 1()
The connector body is marked by name, type, connector body specification, cable outer diameter and standard number table: 75. 3
If the connector body specification is 3=M20×1..cable outer diameter P=9-~1:A type pipe connection mark: including RMB M20.5/9--11J/T8771.7-1908 connector body thread grid. -, the mark of type A pipe joint with outer diameter = 9--11 is: pipe joint/9~11B/T8774.7-1008
according to the main body specification α=20×1.5, the mark of type pipe joint with outer diameter D=9~-11 is: M20X1.5/5-1118/T8774-71998 according to the head screw specification. The mark of type B pipe joint with outer diameter Y of the cable is: joint/9~11J/77-
6 technical requirements
6. The material of the joint and the damage phase is steel, gold or other limited materials with sufficient strength. 63 should meet the requirements of 99.
6.3 The key should meet the requirements of (B1123. 6.4 The materials of the ground and potential should meet the requirements of HG12579, 5
6. The specifications of the connection body source pattern are the screw effect, the core is in accordance with the provisions, the outer pattern is sufficient grade and the inner pattern is grade. When the pipe thread grade is 7307, the ~ screw effect middle diameter is grade A, 6. The outlet end of the maintenance joint should have sufficient angle or bevel. 6. In order to improve the quality of the pipe, it is necessary to carry out the mirror mark or potential close, 6. The inner surface of the joint shall be low gloss and shall not have defects such as aggregation, temporary defects, burrs, etc.: 6.9 The method of using a small connector on the joint is to indicate the size of the connector and the maximum cable outer diameter. The test and inspection shall be carried out in accordance with the requirements of Chapters 4 and 5.2 According to the pulling test, the joint shall be tightened on the ground and the puller shall be kept at 100N between the axis and the cable cover. No displacement shall occur between the cable and the joint.
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