JIS-A-8910-1989-ENG.pdf
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1、UDC 621.878:621.879:624.132:62-783.4.001.42 JIS JAPANESE INDUSTRIAL STANDARD Earth-moving Machinery -Roll-over Protective Structures- Laboratory Tests and Performance Requirements JIS A 8 9 1 0 - 1 9 8 9 Translated and Published bY Japanese Standards Association Printed in Japan 13 S Copyright Japan
2、ese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:25:03 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S A*89LO 89 49336138 0005208 7 . In the event of any doubt arising, t
3、he original Standard in Japanese is to be final authority. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:25:03 MDTNo reproduction or networking permitted without license from IHS -,-,-
4、 J I S A*8918 89 m 4933608 01305209 9 m _ _ _ _ _ _ _ _ _ _ _ _ _ _ To the principal terms and symbols used in this Standard, the folIowing definitions apply. e (1) roll-over protective structure (ROPS) The structure fitted to the machine ROPS includes the subframe, for the purpose of protecting the
5、 operator worn with the seat belt from crushing when a machine has rolled over. blacket, mounting, socket, pin, suspension or shock absorber etc. to fit this to the machine frame, but the fitting seat of integral structure with the machine frame is not included. li UDC 621.878:621.879:624.132: 62-78
6、3.4.001.42 JAPANESE INDUSTRIAL STAN DARD J I S Earth-moving Machinery - Roll-over Protective Structures - Laboratory Tests and Performance Requirements A 8910-1989 1. Scope the earth-moving machinery - roll-over protective structures provided for the machinery (hereafter referred to as the “ROPS“) a
7、nd its test method in order to protect the operator from being crashed under the condition that the earth-moving machinery of not more than 15 kW (20 PSI in engine output at a running speed of not more than 16 km/h rolls over 360“ with taking the vertical axis of machinery as the center without losi
8、ng contact with the inclined ground surface on the hard clay ground of not more than 30“ in angle of inclination. This Japanese Industrial Standard specifies the performance requirements for (1) Crawler loader and wheel loader (crawler tractor shovel and wheel tractor shovel) (2) (3) Grader (motor g
9、rader) (4) Tractor scraper (motor scraper) (5) Crawler tractor, wheel tractor and back hoe loader Articulated dumper (articulated heavy dump truck) Remark: The units and numerical values given in based on the traditional units and are appended for informative reference. in this Standard are 2. Defin
10、itions and Symbols (2) deflection limiting volume (DLV) The volume related to the operator specified in Annex. Applicable Standards and Corresponding International Standards: See page 22. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001
11、, User=Wing, Bernie Not for Resale, 03/15/2007 20:25:03 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S A8893U 89 W 4933b08 61005230 5 2 A 8910-1989 (3) simulated ground plane (SGP) The simulated ground plane specified in Annex. (4) maximum designated mass ( M ) The m
12、aximum mass of the machinery designated by a maunfacturer of machinery. the articulated dumper, the maximum mass of only the tractor part specified by the machinery manufacturer. However, it includes attachments required for work, specified amount of fuel, lubricating oil, cooling water, etc., tools
13、, operator and ROPS, but does not include the tractor drawn attachments such as load and roller, compactor, tractor drawn scraper, etc. For the tractor scraper and (5) ROPS frame assembly Assembly combined together with ROPS and machinery frame. 3. Perf ormance Concerning the roll-over protective st
14、ructures, the members constituting the protective structure and the simulated ground plane (SGP) shall not enter the deflection limiting volume (DLV) due to deflection of protective structure and frame assembly when side loading test and vertical loading test are carried out according to the method
15、specified in 6.3. 4 . Shape The parts of working range for operator or service personnel of ROPS shall be free from sharp angle, edge part, etc. 5. Materials Materials to be used for roll-over protective structure shall meet each item of the following: (i) Bolts and nuts to be used for fitting the r
16、oll-over protective structure with the machinery or for connecting the protective structures shall be bolts of 8.8 or 10.9 in strength division specified in JIS B 1180 and nuts of 8 or 10 in strength division specified in JIS B 1181. Materials of stand seats to be fitted with the members of roll-ove
17、r protective structure and with machinery frame shall meet either one of Charpy absorption energy shown in Table 1. accordance with JIS Z 2202 and JIS Z 2242 respectively. Q (2) Furthermore, dimensions of test piece and the test method shall be in Copyright Japanese Standards Association Provided by
18、 IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:25:03 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 A 8910-1989 10 mm x 10 mm 10 mm x 7.5 mm 10 mm x 5 mm 10 mm x 2.5 mm Table 1. Charpy Absorption Energy of Ma
19、terial At -30C 10.8 (1.10) At -30C 9.5 (0.97) At -30C 7.5 (0.76) At -30C 5.5 (0.56) Note ( 1 ) The test piece shall be taken from the sheet, pipe, steel section and the like before forming or welding so that its long side direction coincides with the rolling direction of roll. piece for tube or stee
20、l section shall be taken from the middle part of the longest dimension of section and not include the weld: The test 6. Tests 6.1 Test Facilities 6.1.1 Test Apparatus The test apparatus shall be capable of fixing securely the protective structure and frame assembly to the test apparatus bedplate and
21、 of loading .side load and vertical load to the ROPS. 6.1.2 Instruments The test facilities shall be provided with instruments capable of measuring the load to be applied to ROPS and the deflection of ROPS at that time. Further, the instruments shall be capable of measuring the maximum load applied
22、to the ROPS and the maximum deflection of the ROPS at that time with an accuracy of i- 5 %. 6.2 Preparation for Test 6.2.1 General Items The general items shall be as follows: (1) Deflection Limiting Volume (DLV) The deflection limiting volume shall be fixed securely to the operating seat of machine
23、ry (or a position corresponding to this) and shall not be fallen down during the test. (2) Fixing of ROPS and Machinery Frame For the test, the complete machinery may be not necessarily used, but the fixing of ROPS and machinery frame shall be same as that of the complete maichinery. All of the atta
24、chable and detachable windows, panels, doors and the non-constitutional parts of ROPS shall be removed so that those do not affect the test. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007
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