GB/T 7121.2-2008 English PDFUS$439.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 7121.2-2008: The strength testing method and accepting condition of the protective structures on wheeled agricultural and forestry tractors -- Part 2: Dynamic testing method Status: Valid
Basic dataStandard ID: GB/T 7121.2-2008 (GB/T7121.2-2008)Description (Translated English): The strength testing method and accepting condition of the protective structures on wheeled agricultural and forestry tractors -- Part 2: Dynamic testing method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: T69 Classification of International Standard: 65.060.10 Word Count Estimation: 19,157 Date of Issue: 2008-07-09 Date of Implementation: 2009-02-01 Older Standard (superseded by this standard): GB 7121-1986 Adopted Standard: Liquor 3463-2006, MOD Regulation (derived from): National Standard Approval Announcement 2008 No.12 (Total No.125) 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 test methods and acceptance criteria dynamic agricultural and forestry wheeled tractors guards. The purpose of the test is to guard the possibility that the normal operation of the tractor is caused by the roll-over accident to minimize driver injury. (Fall vacant except) is applied to the cab or safety shelves to test the strength of the load guard with analog back or side of the tractor overturned. This test can check the strength of the tractor guards and connecting bracket and the strength exerted by the load on the loading device may affect those tractor parts. This section applies to a pneumatic tire tractor having at least two axes. Its mass is 600kg ~ 6000kg, the rear wheels should be greater than the minimum track 1150mm. GB/T 7121.2-2008: The strength testing method and accepting condition of the protective structures on wheeled agricultural and forestry tractors -- Part 2: Dynamic testing 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. The strength testing method and accepting condition of the protective structures on wheeled agricultural and forestry tractors Part 2. Dynamic testing method ICS 65.060.10 T69 National Standards of People's Republic of China Partly replace GB 7121-1986 Agricultural and forestry tractors guard strength Test methods and acceptance criteria Part 2. Rear Dynamic testing method (ISO 3463.2006, Tractorsforagricultureandforestry-Rol-overprotective structures (ROPS) -Dynamictestmethodandacceptanceconditions, MOD) Posted 2009-02-01 2008-07-09 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/T 7121 "agricultural and forestry tractors guard strength test method and acceptance conditions" is divided into four parts. --- Part 1. Static testing method of rear; --- Part 2. Rear dynamic test methods; --- Part 3. front-static test methods; --- Part 4. Front Dynamic testing method. This section GB/T 7121 Part 2. The partial modification of the use of ISO 3463.2006 "Agricultural and forestry wheeled tractors guards Dynamic test method and acceptance conditions" (in English). This section according to ISO 3463.2006 re-drafted. Taking into account China's national conditions, in the use of ISO 3463.2006 when the following modifications. --- Modify the scope of application; --- To ISO 3463.2006 and other international standards referenced with the international standard has been adopted as the standard instead of the corresponding country. Technical differences have been incorporated into the body and they are involved in terms of the margin of a single vertical line identification. For ease of use, this section also made the following editorial changes. --- "This International Standard" be replaced by "this section"; "." --- With a decimal point instead of a comma as the decimal point, ""; --- Delete ISO 3463.2006 foreword, preface increased our standard; --- Changing the name of the standard. This Part replaces GB 7121-1986 "agricultural and forestry tractors guard strength test method and acceptance conditions" rear-mounted dynamic test Test methods section. This section, compared with the 7121-1986 GB main changes are as follows. --- On the validity of the quoted standards were reconfirmed; --- Increase "agriculture and forestry", "guards" of terms and definitions; --- Increased in Chapter 4, "allows the measurement error", the tolerance has been modified; --- Increasing the symbol "Rao h", "Rao v"; --- Supplementary Chapter 6, "Test Equipment" content; --- Test weight bearing before the order to distinguish; --- One of the lift height rear impact test H = 5.74 × 10-2I into H = 5.73 × 10-2I; --- To enhance the degree of unity before impact test is H = 125 + 0.02 m1 t; --- The point of impact of side impact test to modify, and to enhance the degree of unity of H = 125 + 0.15 m1 t; --- To modify the shelter area, and increase two-way traffic tractor working conditions; --- In the acceptance conditions, the increase in the content of articulated tractors and tractor overturned towards the direction of impact when. This part of the Annex A, Annex B normative appendix. This part is proposed by China Machinery Industry Federation. This part of the National Standardization Technical Committee under the jurisdiction of the tractor. This section drafted by. National Tractor Quality Supervision and Inspection Center. The main drafters of this section. Wang storm, Zhen, Jin Xiping. This part of the standard replaces the previous editions are. --- GB 7121-1986. Agricultural and forestry tractors guard strength Test methods and acceptance criteria Part 2. Rear Dynamic testing method1 ScopeGB/T 7121 provisions of this part of the dynamic test method and acceptance conditions for agricultural and forestry tractors guards. Objective To test the protective device is to make the possibility of normal operation when the tractor rollover accidents caused by the driver's injuries is minimized. With analog back or side overturn a tractor (excluding floating drop) is applied to the safety cab or frame to load testing protective devices Strength. This test can check the strength of the guards and the tractor and the attachment brackets by the applied load on the loading device may affect the Those strength tractor parts. This section applies to a pneumatic tire having at least two axes of the tractor, a mass of 600kg ~ 6000kg, the rear wheels should be greater than the minimum tread 1150mm.2 Normative referencesThe following documents contain provisions which, through reference to GB/T 7121 to the present, constitute provisions of this section. For dated references Documents, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encourage the present section Research on the parties to reach an agreement to use the latest versions of these documents. For undated references, the latest edition of In this section. GB/T 229 metal Charpy pendulum impact test method (GB/T 229-2007, ISO 148-1.2006, MOD) GB/T 700 carbon structural steel (GB/T 700-2006, ISO 630.1995, NEQ) GB/T 3098 (all parts) Mechanical properties of fasteners GB/T 6236 Tractors and machinery for agriculture and forestry seat landmarks (GB/T 6236-2008, ISO 5353.1995, MOD) GB/T 6960.7-2007 Tractor terminology - Part 7. Cab, seat and cover GB 8918-2006 important uses rope (ISO 3154. 1988, MOD)3 Terms and DefinitionsGB/T 6960.7-2007 established in the following terms and definitions apply GB/T 7121 of this section. 3.1 At least self-propelled wheeled or tracked vehicles both axes, designed mainly for the following basic agricultural and forestry purposes. --- Tractor trailer; --- Carrying, pulling or pushing agricultural and forestry machinery or equipment, and according to need, or traveling in a tractor parked state is supporting Powered equipment. 3.2 During normal operation, the possibility that the driver of the tractor due to the incident to minimize harm framework. 3.3 Load in working condition quality tractors with add a little oil, water tanks and water tanks, protective equipment and metal cladding normally make ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 7121.2-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 7121.2-2008_English as soon as possible, and keep you informed of the progress. 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