This standard specifies the terms and definitions and symbols, basic parameters, technical requirements, inspection methods, inspection rules, marking, packaging, transportation and storage of single-plane vertical balancing machines. JB/T 9392-2002 Technical requirements for single-plane vertical balancing machines JB/T9392-2002 Standard download decompression password: www.bzxz.net

■Scope
2 Normative references..
3 Terms and definitions and symbols
3.1 Terms and definitions
2 Symbols..
4 Basic parameters of balancing machines
5 Technical requirements
5. [Environment and working environment
Installation requirements.
Main performance
National symbol for balancing machines
Transportation frequency performanceWww.bzxZ.net
Machine safety and gas safety
Other chemical requirements||t t||Test method,
Test conditions...
Testing instruments,
Calibration rotor,
Balance table
Test quality
Calibration of balancing machine
Test for minimum residual balance,
6.8 Test for unbalance reduction rate URR
6.9 Test for unbalance of restraining force code
6.10 Test for residual unbalance of earth shaft, 6.11 Test for resistance to transport shock,||tt ||6.12 Inspection of mechanical safety and electrical safety. 6.13 Inspection of other requirements
7 Inspection rules
. Export inspection
Type inspection
7.3 Judgment rules
Marking, packaging, transportation and storage
JB/T9392—2002
JB/I9392-2D02
Table 2 Symbols
Table 2 Performance indicators
JE/T9392-2002 ||tt ||This standard is a revision of ZBN734-1990 "Technical requirements for single-plane vertical balancing machines": for the test methods of the main performance of balancing machines, the international standard ISO2953:1985 Description and evaluation of balancing machines is used, and the international standard I501925:1990 Mechanical balancing vocabulary and definitions are used, and the international standard TS03719:1991 Graphic symbols for dynamic balancing machines and their technical instruments are used. When revising, this standard improves the structure of the original standard, makes major changes to the technical content, and makes periodic rectifications to the entire standard. This standard has some changes compared with ZBN73004-1990 in the following main technical contents: - Delete the original standard Chapter 3 (Composition of balancing machine), Chapter 8 (Balancing machine equipment and random documents) and Chapter 4 (Quality Certification); - In addition to the original standard 4.5 and 5.9 on the noise of balancing machines and its test methods (this content has been regulated by the mandatory industry standard E9898-1999-Technical conditions for the development of balancing machines?), and add Chapter 3 (Terms and definitions and symbols) and Chapter 4 (Basic parameters of balancing machines. The original People's Republic of China This standard is proposed by China Machinery Industry Federation. This standard is also under the jurisdiction of the National Testing Machine Standardization Technical Committee. The responsible drafting unit of this standard is Changchun Testing Machine Research Institute. The Shenzhen drafting units of this standard are Shanghai Schenck Testing Machine Co., Ltd., Beijing Yuyun Aviation Instrument Co., Ltd., Xiaogan Testing and Inspection Equipment Factory, Shanghai Lian Testing Machine Co., Ltd., Haisongyun International Instrument Co., Ltd., Xinsonglin International Instrument Co., Ltd. The main drafters of this standard are Wang Xuezhi, Wei, Lin Dongtao, Zhang Shimin, Zhou Mingdao, Wang Xionghua, Zhao Xiuyun. This standard was first issued in April 1990 with the professional standard number ZBN73004-1990, and this is the first revision. 1 Scope
Technical conditions
Single-sided vertical balancing machine
JH/r9392—2002
This standard specifies the requirements and definitions and symbols, basic parameters, technical requirements, inspection methods, inspection procedures, marking, packaging, transportation and storage of single-sided vertical balancing machines. This standard applies to single-sided vertical balancing machines (hereinafter referred to as balancing machines). 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For dated application documents, all subsequent amendments (excluding the content of violation) are not applicable to this standard. However, the parties to the agreement on whether to use the latest version of this document can be studied according to the standard. However, for non-date application documents, their latest versions are applicable to this standard. GB/T2611-1992 General technical requirements for testing machines GA/T6444 Machine source dynamic half balance (B/T6444-1995, eQISO1925:1990) GB/7662-198 type weighing machine calibration (91502953:1984) GZ/T9238 Graphic symbols for weighing machines and their instruments (GB/T9238-1998, idtIS03719:1994) JB/T1 47: [992 Testing machine packaging, packaging weighing, mishandling requirements JB8898 Balancing machine safety general technical conditions 33/T9390-2002 Horizontal physical balance machine technical case 3 Terms and definitions and symbols
3.1 Terms and definitions
Terms and definitions established in GB/T6444 are applicable to this standard, 3.2 #
The numbers reserved in this standard are shown in Table 1 when used in a single transmission and description. Table 1 Symbol
g * rrar
g- nans
graravig
gmurg-m?
The amount of residual unbalanced teeth ... The reading value is unbalanced, and the unbalanced value is strictly adjusted. The static and half-measured value of the measured force couple is retained during the test. JB/T9392-2D02
4 Basic balancing machine parameters
The manufacturer should give the following parameters in the relevant technical documents of the balancing machine: a) Balanced rotation range:
5) Maximum pressure of the balanced rotation:
Maximum point diameter of the rotor:
5 Technical requirements
5.1 Environmental and working conditions
The balancing machine can work normally under the following conditions: Actual temperature range 10% ~ 351: Relative temperature does not exceed 85%; In an environment without strong vibration, corrosive materials and strong electromagnetic interference; d) The change of power supply voltage is within ±10% of the rated output; 5.2 Installation requirements
Installation level - 0.2 (KU:
The installation and connection of electrical equipment, connectors, pipe heads, etc. should have the requirements of rated values ​​(such as voltage, current, pressure, etc.). The manufacturer should give a general evaluation of the balance size, quality and warranty. 5.3 Main performance indexes 5.3.1 The performance index of the machine should be small, and the unbalanced force should be reduced when the unbalanced force is small, and the unbalanced force should be adjusted to meet the requirements of the test. Table 2 Performance indexes Balanced machine is small, and the unbalanced force is not added. Unbalanced force reduction rate Unbalanced force adjustment ratio Unbalanced force adjustment ratio Lg m')
Note: The performance index of the balancing machine is determined by the manufacturer and the user through consultation
5.3.2 When the balancing machine is running under the condition of six rotors, the residual unbalance of the main shaft should be less than the minimum residual unbalance of the balancing machine. The balancing machine with automatic compensation may be an exception. 5.4 Graphic symbols for balancing machines
The graphic symbols used for balancing machines and instruments shall comply with the provisions of GBT923.5.5 Endurance performance
The balancing machine in packaging conditions: can withstand the pre-transportation test without damage: after the test, the balancing machine does not need to be adjusted (the package refers to the normal adjustment allowed by the operating procedures) and fully meets the requirements of the cooperation. 5 Safety and electrical safety
The mechanical safety and electrical safety requirements of the balancing machine shall comply with the provisions of B89. 5.7 Other requirements
The basic requirements of the balancing machine, as well as the appearance of the assembly, etc., shall comply with the provisions of the third, fourth and eighth paragraphs of GB 2611-192. 6.1 Inspection conditions
The balancing machine shall be inspected under the environment and working conditions specified in 5.1. 2
6.2 Inspection equipment
The instruments, tools and measuring instruments used during the inspection shall include: a) Tachometer (or tachometer); b) A sufficient weighing plate with an accuracy of 20.1% balance:) Level
d) General inspection instruments and fixtures.
6.3 Calibration rotor
JT/T9392—2002
6.3.1 The material, shape, mass and size of the calibration rotor shall comply with the provisions of Figure 1 and Table 1 in GB7662-1987. 6.3.2 Selection principle of calibration rotor
A calibration rotor with a mass disc less than one-third of the maximum rotor mass allowed to be balanced by the balancing machine shall be selected from the calibration rotor specified in 3.1 to carry out various tests.
If the required calibration rotor mass is less than 1kg or greater than 1[0, the calibration rotor can be determined by negotiation between the manufacturer and the user. 6.4 Balancing speed
When the balancing machine is subjected to the RR test, the selected balancing speed shall be the minimum speed specified by the manufacturer for the calibration rotor mass. After negotiation between the manufacturer and the user, the agreed maximum speed of the rotor can be adopted: 6.5 Test quality
The form of acid quality, accuracy and installation position requirements shall comply with the provisions of 3.1, 3.2 and 3.3 of GBT7062-1987, the test quality "calculation control" GB7662-198 3.4, 6.6 Calibration of the balancing machine
Before the e and identification test, the balancing machine should be adjusted and calibrated according to the adjustment procedures specified in the balancing machine manual. After calibration, the value potentiometer and other potentiometers are not allowed to change during the test. 6. Test for the minimum residual unbalance ma 6.7.1 Check the rotor balance until the residual unbalance is less than 5Vmra49.7.2 Add a small balancing mass equivalent to 10U~20V on the non-test plane according to the procedure specified by the balancing machine, and perform four-way balance according to the reading of the balancing machine: Start the weighing and control the correct amount: The position and size of each correction mass applied should be recorded in detail in B7662 The format and content of Table 1 of GB/T 7662-1987 can also be referred to the column specified in Table 3 of GB/T 7662-1987 to check whether the calibration mass has flown out or fallen off:
6.7.3 Add the test mass of 10U to the screw hole of the test plane 7. The order is arbitrary. According to the working procedure, only one reading is allowed for each start-up. The test data of 12 positions (or B positions) should be recorded in the test record table specified in Table 2 of GB/T 7662-1987, and the bottom curve should be drawn. Figure.
Note: The new format of the test record table and curve chart is shown in Figure 1 and Figure 2 of H/939-22. 6.7.4 The true average value of the test stimulus of 12 points (or 8 points) is calculated according to formula (1): H Li
In the test:
R-12 (or 8)
6.7.5All readings of A should meet the conditions specified in the following two formulas at the same time, then the test is qualified, that is, it meets the requirements of 5.3.1.
94g≤ I1Ag
0.86A-4,≤1.12A
If the reading changes (or shakes or wanders), the maximum and minimum values ​​should be recorded and the following conditions should be met. D.RH A ≤A-1.12A
Note: The 4 in the ratio is calculated based on the arithmetic value of the maximum value A and the minimum value 4 of the recorded A, that is, A=12(A+product.H
JB/T8392—2002
6.8 Test of unbalance reduction rate URA
6.8.1 Prepare two groups of test masses:
First group: 5Vm fixed test mass Um, 1; 25 mobile test mass, 1.
Second group: 25U. fixed test mass, 1 125r moving test mass Ue, t
6.8.2 Draw polar coordinate diagram according to the order of 6.1.3 to 6.1.5 in GB/T7662-1987. 6.B.3 (IRR test procedure) 6.8.3.1 Select any one of the 12 (or 8) screw holes on the lower test plane as the position of the test mass: (or), 6.B.3.2 Select any one of the 12 (or 8) screw holes on the upper test plane as the starting position of the rotating test mass V (or V). 6.8.3.3 Increase the mobile test mass of the lower test surface by 30° or 45” each time, or decrease it by 2 by 30” (or 45”) each time, and skip it when it reaches the fixed test mass.
6.B8.3.4 Record the test mass position of the test sequence of 6.8.3.16.8.33 and the readings of 11 (or 7) tests in the record table 11 of the URR low-order (or high-order) test, and draw the excess numbers in the corresponding allowable circle of the polar coordinate diagram drawn according to 6.8.2: Verify: The new format and content of the (low-order or high-order) test record table and test evaluation diagram can refer to Table 6 and Table 3, 4 of B9390-2002. If all the stored readings recorded in 6.8.3.56.8.3.4 fall within the corresponding allowable circle, the URR unit test is considered qualified. If one reading is not within the allowable circle, it is allowed to (5Um and 25B/rp or 2 5Upp and 125Up; make another test, all the readings after the test should fall within the average circle: If any reading is not within the allowable surface, it is allowed to readjust the balancing machine and repeat the test under the same conditions: 6.9 Test for suppressing unbalanced force couple
6.9.1 Add a test mass of 125ma to any two positions at 50% of the upper test plane or the lower test plane to form an unbalanced test procedure
6.9.2 The test mass disk is rotated 3 times, each time by 90: the new reading R is obtained and recorded in Table 5 of GB/T7662-1987. Each reading should meet the conditions specified in formula (2): R, Um + Ue-.
Where:
1/2000, the unit is *mm (g-mm).
The test result should meet the requirements of 5.3.1 ,
8.10 Inspection of the residual unbalance of the main shaft
Remove the test rotor and start the balancing machine. When the speed is fixed, the residual unbalance of the main shaft should meet the requirements of 5.3.2. 6.11 Inspection of resistance to transportation frequency and vibration
The resistance to transportation vibration and vibration of the balancing machine can be inspected by one of the following two methods: t23
) Install the packaging of the balancing machine firmly on the table of the collision table in the normal transportation state, and use a pulse wave close to a half-sine wave to shock or test. The severity level selected for the test is as follows: peak acceleration 100mVs101n/s*, corresponding pulse duration 11ms2ms, pulse meter weight 6drink/min~1(0 times/min)times+10times
b) Install the balancing machine assembly on the rear of a truck with a load plate not less than 4t. , carry out transportation test for more than 10km on the intermediate road surface of third-class highway at a speed of 25km/h--40km/h. After the magnetic collision test or transportation test, the balance machine shall be fully inspected according to the requirements of this standard, and its performance shall still meet the requirements of S.5: 6.12 Inspection of mechanical safety and electrical safety The mechanical safety and electrical safety of the balancing machine shall be inspected according to the method specified in B889, and shall meet all the requirements of this standard. 8.13 Inspection of other requirements The basic requirements, processing, assembly and appearance quality of the balancing machine shall be inspected by actual dosage or observation according to the relevant requirements of Chapters 3, 4 and 8 of GBT2611-1992. Inspection rules 7.1 Factory inspection 7.1.1 Factory inspection is for all items except 5.5: The product can be shipped only after obtaining a certificate of conformity. 7.1.2 The manufacturer shall keep the measured data records of the daily tests of the balancing machine for reference. 7.2 Type inspection
7.2.1 Type inspection The machine shall be fully inspected according to all the technical requirements specified in this standard. 7.2.2 Type inspection shall be carried out in any of the following cases: new product testing or product transfer; production trial type identification: a
JE/T9392—2002
The product shall be formally produced, and its structure, design, and process shall have major changes, which may affect the product performance; when the product is resumed after long-term production; d) When the network quality inspection and analysis organization proposes the requirement of type inspection. 7.3 Judgment rules
7.3.1 For the delivery inspection, zero balancing machine shall be delivered! The qualified rate of the inspection items reaches 100% to be qualified. 7.32 For type inspection, when the number of units is less than 50, two units will be selected. If two or more unqualified units are found after inspection, the batch of products will be judged as unqualified. When the number of units is less than 50, the samples will be taken out. If two or more unqualified units are found after inspection, the batch of products will be judged as unqualified.
8 Marking, packaging, transportation and storage
8.1 Marking
8.1.1. The balancing machine shall have a nameplate, which shall include: a) Name:
Model:
Main technical parameters of the balancing machine:
Date of manufacture 1
Manufacturing number:
Name of the holder.
8.1.2 For products that implement this standard: The standard number (code, serial number, year) and name shall be marked on the product or product packaging or product instruction manual.
8.1.3 The packaging mark and packaging screening and measurement mark of the balancing machine shall comply with the provisions of Chapter 5 of JB/T6147-1992: 8.2 Packaging
8.2.1 The packaging of the balancing machine shall be waterproof, anti-corrosion and anti-rust packaging. 8.2.2 The packaging of the balancing machine shall comply with the relevant provisions of 4.4.1, 4.4.2 and 4.4.4 of JB/T6147-1992. 8.3 Transportation
B.3.1 The balancing machine should be suitable for loading and unloading requirements of land and water transportation. 8.3.2 When transporting the balancing machine, it should be convenient. If it needs to be hoisted, it should not damage the balancing batch and the accessories and spare parts it carries. 8.4 Storage
The balancing machine should be stored in a warehouse with good ventilation and especially harmful gases. It should not be stored together with chemicals, acids, alkalis and other substances. 5
Inspection rules
7.1 Factory inspection
7.1.1 Factory inspection is for all items except 5.5. The product can be shipped only after obtaining the certificate of conformity. 7.1.2 The manufacturer shall keep the measured data records of the daily tests of the balancing machine for reference. 7.2 Type inspection
7.2.1 Type inspection The machine shall be fully inspected according to all the technical requirements specified in this standard. 7.2.2 Type inspection shall be carried out in any of the following cases: new product testing or product transfer; production trial type identification: a
JE/T9392—2002
The product shall be formally produced, and its structure, design, and process shall have major changes, which may affect the product performance; when the product is resumed after long-term production; d) When the network quality inspection and analysis organization proposes the requirement of type inspection. 7.3 Judgment rules
7.3.1 For the delivery inspection, zero balancing machine shall be delivered! The qualified rate of the inspection items reaches 100% to be qualified. 7.32 For type inspection, when the number of units is less than 50, two units will be selected. If one unit fails after inspection, the batch of products will be judged as unqualified. When the number of units is less than 50, samples will be taken on the test bench. If two or more unqualified units are found after inspection, the batch of products will be judged as unqualified.
8 Marking, packaging, transportation and storage
8.1 Marking ||t 8.1.1 The balancing machine shall have a nameplate, which shall include: a) Name:
Model:
Main technical parameters of the balancing machine:
Date of manufacture1
Manufacturing number:
Name of the holder.
8.1.2 For products that implement this standard: The standard number (code, serial number, year) and name shall be marked on the product or product packaging or product instruction manual.
8.1.3 The packaging mark and packaging screening and measurement mark of the balancing machine shall comply with the provisions of Chapter 5 of JB/T6147-1992: 8.2 Packaging
8.2.1 The packaging of the balancing machine shall be waterproof, anti-corrosion and anti-rust packaging. 8.2.2 The packaging of the balancing machine shall comply with the relevant provisions of 4.4.1, 4.4.2 and 4.4.4 of JB/T6147-1992. 8.3 Transportation
B.3.1 The balancing machine should be suitable for loading and unloading requirements of land and water transportation. 8.3.2 When transporting the balancing machine, it should be easy to walk. If it needs to be hoisted, the balancing batch and the accessories and spare parts it carries should not be damaged. 8.4 Storage
The balancing machine should be stored in a warehouse with particularly harmful gases and good ventilation. It should not be stored together with chemicals, acids, alkalis and other substances.
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