GB/T 7550-2008 English PDF

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GB/T 7550-2008: Synchronizing universal coupling with ball and socket -- Test method
Status: Valid

GB/T 7550: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 7550-2008	139	Add to Cart	3 days	Synchronizing universal coupling with ball and socket -- Test method	Valid
GB/T 7550-1987	199	Add to Cart	2 days	Synchronizing universal coupling with ball and sacket	Obsolete

Similar standards

GB/T 5014   GB/T 4323   GB/T 5015   GB/T 5844   GB/T 5843   GB/T 7549   

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: 6,660
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Older Standard (superseded by this standard): GB/T 7550-1987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 ......

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