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1、S T A N D A R D ASABE is a professional and technical organization, of members worldwide, who are dedicated to advancement of engineering applicable to agricultural, food, and biological systems. ASABE Standards are consensus documents developed and adopted by the American Society of Agricultural an
2、d Biological Engineers to meet standardization needs within the scope of the Society; principally agricultural fi eld equipment, farmstead equipment, structures, soil and water resource management, turf and landscape equipment, forest engineering, food and process engineering, electric power applica
3、tions, plant and animal environment, and waste management. NOTE: ASABE Standards, Engineering Practices, and Data are informational and advisory only. Their use by anyone engaged in industry or trade is entirely voluntary. The ASABE assumes no responsibility for results attrib- utable to the applica
4、tion of ASABE Standards, Engineering Practices, and Data. Conformity does not ensure compliance with applicable ordinances, laws and regulations. Prospective users are responsible for protecting themselves against liability for infringement of patents. ASABE Standards, Engineering Practices, and Dat
5、a initially approved prior to the society name change in July of 2005 are designated as ASAE, regardless of the revision approval date. Newly developed Standards, Engineering Practices and Data approved after July of 2005 are designated as ASABE. Standards designated as ANSI are American National St
6、andards as are all ISO adoptions published by ASABE. Adoption as an American National Standard requires verifi cation by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by ASABE. Consensus is established when, in the judgment of the ANSI Board of
7、Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made tow
8、ard their resolution. CAUTION NOTICE: ASABE and ANSI standards may be revised or withdrawn at any time. Additionally, procedures of ASABE require that action be taken periodically to reaffi rm, revise, or withdraw each standard. Copyright American Society of Agricultural and Biological Engineers. Al
9、l rights reserved. ASABE, 2950 Niles Road, St. Joseph, MI 49085-9659, USA ph. 269-429-0300, fax 269-429-3852, hqasabe.org ANSI/ASAE S522.1 JAN2005 (ISO5674:2004 (E) Tractors and machinery for agricultural and forestry Guards for power take-off (PTO) drive shafts Strength and wear tests and acceptanc
10、e criteria ANSI/ASAE S522.1 JAN2005 (ISO5674:2004 (E) Approved JANUARY 2005 as an American National Standard Tractors and machinery for agricultural and forestry Guards for power take-off (PTO) drive shafts Strength and wear tests and acceptance criteria ProposedbytheFarmEquipmentCounciloftheEquipme
11、nt Manufacturers Institute; approved by the ASAE Safety Standards Subcommittee and the Power and Machinery Division Standards Committee; adopted by ASAE November 1995; reaffi rmed December 1999, December 2001, February 2003, February 2004. Adoption with modifi cation of ISO 5674:2004 (E) and additio
12、n of ASAE Forward with deviations January 2005; approved by ANSI January 2005. 0 Forward 0.1 This ASAE document, ANSI/ASAE S522.1, Tractors and machinery for agricultural and forestry Guards for power take-off (PTO) drive shafts Strength and wear tests and acceptance criteria, is equivalent to ISO 5
13、674:2004(E) except for the deviations as noted in the following forward sections. These deviations pertain to those provisions where harmonizationcouldnotbeachievedbetween ASAEandthe International Standard. The responsible ASAE Standard Development Committee considered this information relevant and
14、important to be identifi ed in the document. The current version of ISO 5674 includes ASAE technical content. 0.2 This standard specifi es laboratory tests for determining the strength and wear resistance of guards for power take-off (PTO) drive-shafts on tractors and machinery used in agriculture a
15、nd forestry, and their acceptance criteria. It is intended to be used in combination with ASAE S207. It is applicable to the testing of PTO drive-shaft guards and their restraining means. It is not applicable to the testing of guards designed and constructed to be used as steps. 0.3 Five normative r
16、eferences are listed in ISO 5674:2004(E). Four of these references have been reviewed and accepted as part of the adoption of ISO 5674:2004(E). 0.3.1 For the purpose of this document, replace normative reference ISO 5673, Agricultural tractors and machinery Power take-off drive shafts and position o
17、f power input connection with ASAE S207.12 DEC98 Operating Requirements for Tractors and Power Take-Off Driven Implements. 0.4 This standard had been approved as anAmerican National Standard by ANSI (American National Standard Institute). 1 Scope This International Standard specifi es laboratory tes
18、ts for determining the strength and wear resistance of guards for power take-off (PTO) drive- shafts on tractors and machinery used in agriculture and forestry, and their acceptance criteria. It is intended to be used in combination with ISO 5673. It is applicable to the testing of PTO drive-shaft g
19、uards and their restraining means. It is not applicable to the testing of guards designed and constructed to be used as steps. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For u
20、ndated references, the latest edition of the referenced document (including any amendments) applies. ISO 105-A02, Textiles Tests for colour fastness Part A02: Grey scale for assessing change in colour ISO 500 (all parts), Agricultural tractors Rear-mounted power take-off types 1, 2 and 31) ISO 4892-
21、1, Plastics Methods of exposure to laboratory light sources Part 1: General guidance ISO 4892-2, Plastics Methods of exposure to laboratory light sources Part 2: Xenon-arc sources ISO 5673-1, Agricultural tractors and machinery Power take-off drive shaftsandpower-inputconnectionPart1: Specifi cation
22、s, manufacturing and safety requirements 2) ISO 5673-2, Agricultural tractors and machinery Power take-off drive shafts and power-input connection Part 2: Specifi cation of PTO drive shaft, and PIC position and clearance for attachments 2) 1) To be published. (Replaces ISO 500:1991) 2) To be publish
23、ed. (Replaces ISO 5673:1993) 3 Terms and defi nitions For the purposes of this document, the terms and defi nitions given in ISO 5673-1 and the following apply. 3.1 ambient temperature any temperature between 5 C and 35 C 4 General test conditions 4.1 Guard 4.1.1 The guard shall be representative of
24、 a production model and be within the tolerances specifi ed for the guard. The results obtained from the sample can be used to certify guards of shorter or longer lengths, provided the basic design remains the same. When a guard is designed for use with several drive-shaft types, a representative se
25、lection of shaft and guard combinations shall be tested. 4.1.2 If the guard is made of plastic material (or any other material susceptible to degradation by UV radiation), it shall be certifi ed by the manufacturer to be resistant to degradation from UV radiation under an appropriate, recognized met
26、hod. See Annex B for an example. 4.1.3 During testing, all operating and maintenance instructions specifi ed for the shaft and guard shall be complied with, except where specifi cally mentioned by this International Standard. 4.1.4 The guard shall be tested in conjunction with a PTO drive-shaft of b
27、etween 900 mm and 1 010 mm closed length for which it is intended. The same guard shall be used throughout all the tests. 4.2 Other 4.2.1 Where specifi ed in this International Standard that the PTO drive- shaft shall be revolving, its rotational frequency shall be 1 000 r/min. 4.2.2 All tests shall
28、 be carried out in accordance with the schedule and in the sequence given in Annex A. ANSIASAE S522.1 JAN2005 ISO5674:2004 E414ASABE STANDARDS 2006 -,-,- 5 Test equipment 5.1 General 5.1.1 Wear test equipment, which shall be capable of holding the PTO drive-shaft and revolving it at a frequency of 1
29、 000 r/min. The shafts and guards shall be mounted as specifi ed for operational use and only fi xed by their designated restraining device. The fi xing points shall be in accordance with ISO 500 and the equivalent machine standard unless otherwise specifi ed for that type of shaft. The size and sha
30、pe of the wear test equipment shall be such that an even test environment is maintained, e.g. heat and the dust specifi ed in 5.2.3. 5.1.2 Strength test equipment, which shall allow the accurate application of known loads at controlled temperatures and at the required frequency of rotation within th
31、e tolerances stipulated in Table 1. 5.2 Test parameters 5.2.1 Measuring accuracy All measurements shall be within the tolerances given in Table 1 except where otherwise required by this International Standard. 5.2.2 Potable and salt water 5.2.2.1 When a test requires the use of water, it shall be po
32、table (i.e. drinking water). 5.2.2.2 When a test requires a saltwater solution, it shall be prepared by dissolving sodium chloride in water to produce a concentration of 50 g/l ?5 g/l. The sodium chloride shall be white and shall give a colourless solution in water. It shall be substantially free fr
33、om copper and nickel, and shall not contain more than 0,1 % of sodium iodine and not more than 0,4 % of total impurities calculated for dry salt. 5.2.3 Test dust 5.2.3.1 The test dust shall consist of a mixture composed of equal parts, by mass, of organic and mineral dust. 5.2.3.2 The organic dust s
34、hall be ground lucerne with a maximum percentage of 12 % water and with a maximum particle size of 2 mm. An environment of 0.5 kg/m3shall be maintained. 5.2.3.3 The mineral dust shall be a simple phosphated fertilizer, and shall contain as principal elements silicophosphates of calcium having the fo
35、llowing characteristics: minimum content: 9 % of P2O5total (?3 %); other: at least 75 % of the P2O5total declared, soluble in a 2 % concentration of citric acid. See Table 2. 6 Tests 6.1 General After each test, note and record the condition of the guard, with particular reference to any fractures,
36、permanent deformation or detachment of components which could contribute to the deterioration of the guard. For the test sequence, see Annex A. The PTO drive-shaft guard is deemed to have passed the test if the guard has no holes or deformation which leave the shaft unprotected, and the guard has no
37、 breakage, crack or part separation. 6.2 Wear test 6.2.1 For the whole test, the shaft shall be revolving and, whilst revolving, shall be repeatedly extended to its extended length (see ISO 5673-1), held for 1 min, then returned and held at its closed length (see ISO 5673-1) for 4 min. This shall be
38、 repeated for the duration of the test period. See Annex A for the test sequence. Guards shall only be fi xed using the normal fi xing and restraining system as specifi ed by the manufacturer. Before the start and at the end of each of the wear test cycles, measure the torque required for the immobi
39、lization of any part of the guard, having fi rst run the guard for 1 min. The torque measured shall not exceed 2.5 m per bearing race up to a maximum of 10 N m per complete driveline. 6.2.2 At the start and at the end of the wear test, measure the running torque that needs to be applied to each guar
40、d tube in order to immobilize it when the shaft is revolving at 1 000 r/min. 6.2.3 Carry out the following procedure, in the sequence given. a) For 48 h, operate at 85 C. b) For 48 h, operate at ambient temperature. c) For 96 h, operate at ambient temperature in an atmosphere containing 0,5 kg/m3of
41、dust according to 5.2.3. d) For 24 h, operate at 85 C. e) For 24 h, operate at ambient temperature. f) For 48 h, operate at ambient temperature in an atmosphere containing 0,5 kg/m3of dust according to 5.2.3. 6.3 Bearing corrosion test (Perform only if the guard has bearings running in contact with
42、the PTO- shaft) Taking the shaft with the bearing in place, but with the rest of the guard removed, and supported horizontally and stationary, apply salt water (see 5.2.2.2) to all bearings for the fi rst 5 min of every hour for 48 h, then leave to dry in free air (i.e. 48 cycles consisting of salt
43、water application for 5 min of each cycle and drying in free air for the other 55 min of each cycle). The salt water may be applied by spraying, fl ooding or any other suitable method, provided that it at least fl ows over all the metallic parts of the bearing system at some stage during the 5 min.
44、It might be necessary to rotate the shaft during the process to ensure good coverage, but this should only be done very slowly so as not to throw the liquid off. The application of the salt water shall be carried out such that salt solution corrosion of its inner tubes is avoided. 6.4 Strength tests
45、 6.4.1 Dynamic radial loading test at defi ned temperature limits Subject the guarded drive-shaft to a radial loading test at ambient temperature after each complete cycle of the wear test (See A.1 and D.9). The PTO drive-shaft guard is deemed to have passed the test if the guard has no holes or def
46、ormation which leave the shaft unprotected, and the guard has no breakage, crack or part separation. 6.4.2 Test on guard component covering joints Revolve the PTO drive-shaft and, using a smooth, fl at, 100 mm wide Table 1 Measuring accuracy Measuring accuracyTest tolerance Rotational speed?0,5 %+5
47、% Temperature?1,0 C?5 % Time?0,2 %+5 % Length?0,5%?2 % Force?1,0 %+2 % Table 2 Mineral dust specifi cation Mesh opening of sieve mmFineness of grinding, after sifting min. % m/m 0,063- 0,125- 0,1675 0,6396 ANSIASAE S522.1 JAN2005 ISO5674:2004 EASABE STANDARDS 2006415 -,-,- wooden bean, apply a direc
48、t force of 500 N to the cone of the universal joint for 60 s, in accordance with Annex A, perpendicular to the PTO drive-shaft. To avoid excessive vibration, the wooden beam shall be supported by a 20 mm thick rubber backing of approximately A 20 Shore hardness. When applying the load, care shall be
49、 taken to ensure that no impact load is applied. Test over every joint. The PTO drive-shaft guard is deemed to have passed the test if the guard has no holes or deformation which leave the shaft unprotected, and the guard has no breakage, crack or part separation. 6.4.3 Test on tubes Support the guarded PTO drive-shaft in a horizontal, straight line by its usual end connections, at its extended length (as specifi ed by the man