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GB/T 7550: Historical versions
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| GB/T 7550-2008 | English | 139 |
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Synchronizing universal coupling with ball and socket -- Test method
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| GB/T 7550-1987 | English | 199 |
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Synchronizing universal coupling with ball and sacket
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Basic data
| Standard ID | GB/T 7550-2008 (GB/T7550-2008) |
| Description (Translated English) | Synchronizing universal coupling with ball and socket -- Test method |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | J19 |
| Classification of International Standard | 21.120.20 |
| Word Count Estimation | 6,647 |
| Date of Issue | 2008-09-27 |
| Date of Implementation | 2009-05-01 |
| Older Standard (superseded by this standard) | GB/T 7550-1987 |
| Regulation (derived from) | National Standard Approval Announcement 2008 No.16 (Total No.129) |
| Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China |
| Summary | This standard specifies the CV synchronous universal coupling (hereinafter referred to as the coupling) of the performance test, test equipment, test report. This standard applies by GB/T 7549 Manufacturing couplings, other types of couplings can use and reference. |
GB/T 7550-2008: Synchronizing universal coupling with ball and socket -- Test method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Synchronizing universal coupling with ball and socket.Test method
ICS 21.120.20
J19
National Standards of People's Republic of China
Replacing GB/T 7550-1987
Cage Synchronizing universal coupling with Test Method
Posted 2008-09-27
2009-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is GB/T 7550-1987 "Test Method for Coupling Ball Basket universal synchronous" amendments.
This standard and GB/T 7550-1987 have compared the contents of the following changes.
--- According to GB/T 1.1-2000 preparation of this standard;
--- Increasing the foreword;
--- Increasing the normative references;
--- Cancel the content "1 Performance Test Project";
--- The original "2 test equipment" to "4 Test Equipment";
--- The coupling model "QWL" to "WQL".
This standard by the National Standardization Technical Committee axis machines and accessories and focal points.
This standard was drafted. Mechanical Engineering Research Institute, based in Deyang Rieter Ltd., Xi'an Heavy Machinery Research Institute.
The main drafters of this Standard. Chui Ming new WangJiannong, Liuxue Guang, PAN right.
This standard replaces the standards previously issued as follows.
--- GB/T 7550-1987.
Cage Synchronizing universal coupling with Test Method
1 Scope
This standard specifies the synchronization Ball Basket universal coupling (hereinafter referred to as the coupling) performance test, test equipment, test report.
This standard applies to press GB/T 7549 manufactured couplings, other types of couplings can use and reference.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 7549-2008 Cage synchronous universal coupling
3 Performance Test
3.1 load test
3.1.1 The test shall be made prior to the coupling manufacturer certification, and add MoS2 grease. In coupling allowable speed according to Table 1
Column five kinds axis inclination and time to test positive and negative load test in both directions.
Table 1
Axis tilt/permissible maximum axis tilt /% 0255075100
Time/min
Forward 3010101030
Reverse 3010101030
3.1.2 No-load test coupling should not have abnormal sound, the temperature rise should not exceed 5 ℃.
3.2 Synchronization Test
3.2.1 Coupling synchronization refers to the relative error of the instantaneous angular velocity input unit and the output of the angular velocity, namely. input angular velocity ω1, lose
An angular velocity ω2, synchronization error Δω, there are.
Δω = ω2-ω1ω1
3.2.2 measurement process, the measuring point on the circumference of not less than 180, Δω is less than 1/500.
3.3 load test
3.3.1 load test is in the allowable speed, axis angle to the 0 ° axis allowable maximum inclination angle in five. Press nominal torque
T-shaped convert torque T =
K3K4
18K1K2
25% · T-shaped, 50%, 75%, 100% loading four stages. Coefficients K1, K2, K3, K4 press
GB/T 7549-2008 Appendix A OK. Table 2 identifies the test of time. Start recording when the temperature balance.
Table 2 Test time (in minutes)
No. tilt axis/maximum permissible shaft inclination /%
Torque/torque conversion /%
22520306090
...
