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GB/T 21956.3-2015 English PDF

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GB/T 21956.3-2015: Protective structure strength on narrow-track wheeled agricultural and forestry tractors -- Testing method and acceptance condition -- Part 3: Static testing method of rear mounted R0PS
Status: Obsolete

GB/T 21956.3: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 21956.3-2015English919 Add to Cart 4 days [Need to translate] Protective structure strength on narrow-track wheeled agricultural and forestry tractors -- Testing method and acceptance condition -- Part 3: Static testing method of rear mounted R0PS Obsolete GB/T 21956.3-2015
GB/T 21956.3-2008English719 Add to Cart 5 days [Need to translate] The strength testing method and accepting condition of protective structures on narrow-track wheeled agricultural and forestry tractors -- Part 3: Static testing method of rear mounted ROPS Obsolete GB/T 21956.3-2008

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Basic data

Standard ID GB/T 21956.3-2015 (GB/T21956.3-2015)
Description (Translated English) Protective structure strength on narrow-track wheeled agricultural and forestry tractors -- Testing method and acceptance condition -- Part 3: Static testing method of rear mounted R0PS
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard T69
Classification of International Standard 65.060.10
Word Count Estimation 23,277
Date of Issue 2015-12-10
Date of Implementation 2016-07-01
Older Standard (superseded by this standard) GB/T 21956.3-2008
Quoted Standard GB/T 700; GB/T 6236; GB/T 6960.1-2007; GB/T 6960.7-2007
Adopted Standard OECD code 7-2012, OECD, MOD
Regulation (derived from) National Standard Announcement 2015 No.38
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 static test methods and acceptance conditions for the strength of rear-mounted guards for agricultural and forestry narrow-wheeled wheeled tractors. This standard applies to pneumatic tractors with two axes, with a ground clearance of not less than 600 mm at the lowest point of the front axle and rear axle; for tires of maximum size for front or rear wheels, whether tracked or fixed (Including the maximum tire provided by the protective device and the manufacturer) is greater than 400 kg. If the two-way tractor is less than 3 500 kg at the same time, the maximum quality of the tractor shall not be less than 1150 mm. More than 5 250 kg. For all tractors, the mass ratio does not exceed 1.75.

GB/T 21956.3-2015: Protective structure strength on narrow-track wheeled agricultural and forestry tractors -- Testing method and acceptance condition -- Part 3: Static testing method of rear mounted R0PS



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Protective structure strength on narrow-track wheeled agricultural and forestry tractors - Testing method and acceptance condition - Part 3. Static testing method of rear mounted ROPS ICS 65.060.10 T69 National Standards of People's Republic of China Replacing GB/T 21956.3-2008 Narrow track wheeled agricultural and forestry tractors guard strength Test methods and acceptance conditions - Part 3. Static testing method of rear forestrytractors-Testingmethodandacceptancecondition-Part 3. Static (OECDcode7.2012, OECDstandardcodefortheofficialtestingofrear agriculturalandforestrytractors, MOD) Issued on. 2016-07-01 2015-12-10 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 21956 "narrow-track wheeled agricultural and forestry tractors guard strength test method and acceptance conditions" is divided into four parts. --- Part 1. Static testing method of front mounted; --- Part 2. Pre Dynamic testing method; --- Part 3. Static testing method of rear; --- Part 4. Rear dynamic test methods. This section GB/T Part of 321,956. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 21956.3-2008 "narrow-track wheeled agricultural and forestry tractors guard strength test methods and acceptance criteria Part 3. Static testing method of rear. " This section compared with the GB/T 21956.3-2008, in addition to editorial changes outside the main technical changes are as follows. --- The tractor mass 600kg ~ 3000kg load is adjusted to the tractor without counterweight mass 400kg ~ 3500kg, increased "For all tractors, the mass ratio of no more than 1.75." (See Chapter 1, Chapter 1, 2008 edition); --- Normative references increased by GB/T 6960.1-2008 (see Chapter 2, Section 2 of the 2008 edition); --- Adjust some terms and definitions (see Chapter 3, Chapter 3, 2008 edition); --- Symbol added "ah" and "av" (see Chapter 5, Chapter 5, 2008 edition); --- Adjust the horizontal lateral loading test apparatus of the example of Figure [see Figure 1b), in 2008 the territory 1b)]; --- Increasing the loading process requirements of the load direction and speed (see 6.5); --- Adjust the load side of the mount point (see 7.6); --- Adjust the content of shelter areas (see Chapter 8, Chapter 8, 2008); --- Adjust the content of the sample size of the test report (see A.2.5,2008年版 A.2.5); --- Delete the contents of Appendix A "minor changes of proof" of. This section uses redrafted Law Amendment uses OECDcode7.2012 "narrow - track wheeled agricultural and forestry tractors - Rear-mounted roll-over Guard strength test method "(in English) static test portion. Part of this OECDcode7.2012 technical differences are as follows. --- Increased Chapter 2, "Normative references"; --- Part of technical terms and references GB/T 6960.1-2007 and GB/T 6960.7-2007; --- Removed OECDcode7.2012 Administrative report extension; --- Removed OECDcode7.2012 Appendix Ⅰ "according to the seat reference point to determine the shelter zone" section; --- Removed OECDcode7. Appendix Ⅱ dynamic tests on part of 2012; --- Removed OECDcode7.2012 in the driver's seat belt anchorage point test content. For ease of use, this section also OECDcode7.2012 made the following editorial changes. --- Modify the standard name; --- Increased unit conversion content. This part is proposed by China Machinery Industry Federation. This part of the National Standardization Technical Committee tractor (SAC/TC140) centralized. This section is drafted. Luoyang Xiyuan vehicle inspection and Power Limited, China First Tractor Group Co., Ltd. The main drafters of this section. Guo Zhiqiang, Wang wind and rain, lock eternally, Zhang Teng, Hu Xiaohua. This part of the standard replaces the previous editions are. --- GB/T 21956.3-2008. Narrow track wheeled agricultural and forestry tractors guard strength Test methods and acceptance conditions - Part 3. Static testing method of rear

1 Scope

This section GB/T 21956 specifies the static test methods for agriculture, forestry narrow track wheeled tractor rear guards Strength And acceptance criteria. This section applies to a pneumatic tire having a tractor two shafts, ground clearance the lowest point of its front and rear axles is not more than 600mm; the former Or rear wheels fitted with tires of the largest size, whether it is fixed or adjustable track width of the tractor minimum tread was no more than 1150mm; drag Two-way machine with a tractor without counterweight mass (including the largest tire and guards provided by the manufacturer) is greater than 400kg, the same time as the Less than 3500kg, maximum use mass not exceeding 5250kg. For all tractors, the mass ratio of no more than 1.75.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 700 carbon structural steel GB/T 6236 Tractors and machinery for agriculture and forestry seat landmarks GB/T 6960.1-2007 Tractor terminology - Part 1. Hardware GB/T 6960.7-2007 Tractor terminology - Part 7. Cab, seat and cover

3 Terms and Definitions

GB/T 6960.1-2007 and GB/T 6960.7-2007 defined and the following terms and definitions apply to this document. 3.1 Wheel center plane medianplaneofthewheel From the two outer circumferential rim plane equidistant plane. 3.2 Tread track Vertical plane through the wheel axis line of intersection with the wheel center plane of the support plane turned at one point, if A and B points are dragging Two o'clock two wheels on the same axis machine thus defined, the wheelbase is the distance between point A and point B on a single row of wheels. For double wheel, tread It refers to the distance between the wheel center plane. NOTE. This definition applies to both front and rear wheels. 3.3 Tractor center plane medianplaneofthetractor The tractor rear axle A and B points raised outermost limit position (which gives the maximum wheel base), and the midpoint of the line AB perpendicular Vertical plane.

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