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Basic dataStandard ID: JT/T 1272-2019 (JT/T1272-2019)Description (Translated English): Technical requirements and testing methods for intermodal swap body Sector / Industry: Highway & Transportation Industry Standard (Recommended) Classification of Chinese Standard: A85 Classification of International Standard: 03.220.01 Word Count Estimation: 11,146 Date of Issue: 2019 Date of Implementation: 2019-10-01 Issuing agency(ies): Ministry of Transport Summary: This standard specifies the technical requirements and test methods for intermodal exchange boxes. This standard is applicable to the production, inspection and use of C-type multimodal transport exchange boxes, and other types of multimodal transport exchange boxes can be used as a reference. JT/T 1272-2019: Technical requirements and testing methods for intermodal swap body---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.Technical requirements and testing methods for intermodal swap body ContentsForeword III 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Technical requirements 2 5 Test method 6 JT/T 1272-2019ForewordThis standard is in accordance with GB/T Draft the rules given in 1-2009. This standard is proposed and managed by the National Comprehensive Transportation Standardization Technical Committee. This standard was drafted. CIMC Vehicles (Shandong) Co., Ltd., Scientific Research Institute of the Ministry of Transport. The main drafters of this standard. Li Hongbing, Hu Tiejun, Gao Feng, Liu Xin, Wang Jian, Jiang Cailiang, Zhou Guofang, Zhou Kedu, Meng Yang, Li Zhi, Shang Yizong, Han Jiguo, Liang Renhong, Jiang Jingling, and Liu Ying. JT/T 1272-2019 Technical requirements and test methods for intermodal interchange boxes1 ScopeThis standard specifies the technical requirements and test methods for multimodal transport exchange boxes. This standard applies to the production, inspection, and use of C-type multimodal interchange boxes. Other types of multimodal interchange boxes can be referred to.2 Normative referencesThe following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 1835 Series 1 Container Corner GB/T.1992 Container Terminology GB/T 12673 Measuring methods for main dimensions of automobiles GB/T 12674 Automobile mass (weight) parameter determination method JT/T 1092 Terminology for multimodal transport of goods JT/T 1195 Intermodal Exchange Box Identification3 Terms and definitionsThe terms and definitions defined in GB/T.1992, JT/T 1092 and the following apply to this document. For ease of use, the following is repeated Some terms and definitions in GB/T.1992 and JT/T 1092. 3． 1 Swap box swap body A standardized cargo box equipped with foldable legs, which can be separated from the truck, and is placed on the ground independently with the legs as a support. [JT/T 1092-2016, definition 3. 3] 3． 2 Gripper gripe Located on the lower side beam of the exchange box, it is convenient to use the grab arm to lift and carry the groove of the exchange box. 3． 3 Guide groove guide It is located at the bottom of the exchange box, penetrates the entire bottom plate longitudinally, and the guide surface is free of obstacles. 3． 4 Front stop block stop A metal part located in the center of the lower part of the outside of the front wall of the exchange box. 3． Five Outfit legs At the bottom of the exchange box, it is used to support the exchange box, and it can be extended and folded. JT/T 1272-2019 3． 6 Fork groove Transversely penetrate the bottom structure of the box at the prescribed position of the exchange box, so that the teeth of the forklift can penetrate into the groove at the bottom of the box. 3． 7 Maximum total massmaximum total mass Maximum mass of the exchange box when fully loaded. 3． 8 Load mass Maximum allowable loading mass of the exchange box. 3． 9 Corner fitting The parts provided at each corner of the box play the role of supporting, stacking, carrying and fastening the exchange box. Note. Rewrite GB/T.1992-2006, definition 6. 1． 1． 1.4 Technical requirements4． 1 General 4． 1． 1 The exchange box should have a certain degree of rigidity and strength. During loading and unloading and transportation, there should be no permanent deformation affecting the use. 4． 1． 2 After the end walls and side walls of the exchange box are unloaded, they shall not cause permanent deformation greater than 12 mm without affecting its function. 4． 1． 3 The exchange box should have good rain-proof sealing performance, and there should be no leakage during use. 4． 1． 4 The identification and operation identification of the exchange box shall comply with the provisions of JT/T 1195. 4． 1． 5 The exchange box should be fixed by corner pieces during road, rail, and water transportation and meet the relevant technical conditions; Car transport; freight yard can be loaded and unloaded with special spreaders and forklifts. 4． 2 Dimensions and maximum total mass The external dimensions, allowable deviations and maximum total mass (R) of the exchange box are shown in Figure 1 and Table 1. Table 1 External dimensions, allowable deviations and maximum total mass of the exchange box model l1 (Mm) l2 (Mm) l3 (Mm) l4 (Mm) (Mm) b1 (Mm) b2 (Mm) ｜ d1-d2 ｜ (Mm) (Kg) C725 7 2500- 20 C745 7 4500- 20 C782 7 8200- 20 5 853 ± 3 698. 50- 3 798. 50- 3 988. 50- 3 4 876 + 100- 6 2 550a 2 259 ± 3 13 16 000 Note 1. C725, C745 and C782 are three different types of C-type exchange boxes; Note 2. There are three different profile heights of two different types of exchange boxes. 2,750mm, 2,820mm, and 2,986mm. a The incubator shall be 2,600 mm. JT/T 1272-2019 4． 3 corner pieces There should be 4 corner pieces at the bottom of the exchange box. The installation position is shown in Figure 1. The structure size is shown in Figure 2. The strength should meet GB/T 1835 requirements for midsole corner pieces. Explanation. 1 --- grab groove; 2 --- corner pieces; l1 --- the outline length of the exchange box; l2 --- the longitudinal fixed size of the corner piece; l3 --- the distance from the corner piece to the front of the exchange box, including the thickness of the front stop; l4--grip spacing; h --- the height of the outline of the exchange box; b1 --- the outline width of the exchange box; b2 --- lateral fixation of corner pieces; d1, d2 --- diagonal distance of corner pieces; σ --- tolerance. Figure 1 Dimensions of the exchange box 4． ４ Gripper The exchange box should have 4 gripping grooves, the position of which is shown in Figure 1, and the dimensions shown in Figure 3. When setting, ensure that the grapple of the loading and unloading equipment Does not deviate from the gripping groove area when moving longitudinally. JT/T 1272-2019 Figure 2 Schematic diagram of the corner piece structure Figure 3 Schematic diagram of gripping groove size 4． 5 guide groove A guide groove should be provided on the bottom plate of the exchange box, and the guide groove penetrates the entire bottom plate longitudinally. The bottom surface of the guide groove should be the same as the bottom surface of the corner piece. A plane whose position and dimensions are shown in Figure 4. 4． 6 front stop A metal stopper should be installed at the lower end of the outside of the front wall of the exchange box, centered. The minimum size of the front stop is 800mm × 160mm. The small thickness is 8mm. Its position and dimensions are shown in Figure 5. The front stopper should not affect the permanent use during the exchange box loading and unloading. Deformation. JT/T 1272-2019 Figure 4 Position and size of guide groove Explanation. 1 --- Front stop. Figure 5 Position and size of front stop 4． 7 legs The exchange box should be installed with 4 legs, according to the requirements of the height of the bottom of the exchange box from the ground H (generally 970mm, 1220mm, 1320mm) Select the corresponding specification leg. The outriggers can be extended and retracted horizontally and vertically. At least two safety structures should be provided to prevent them from falling off. Leg pads less than 95mm x 95mm. The mounting position and dimensions of the outriggers are shown in Figure 6. When the exchange box is fully loaded, the outriggers should be stable and reliable. 4． 8 fork groove The exchange box should be provided with a fork groove. The distance between the fork groove and the bottom of the exchange box is more than 20mm, its length is greater than 355mm, and its width is greater than 115mm. And dimensions are shown in Figure 7. When the exchange box is carried or loaded with a forklift, there should be no permanent deformation that affects the use. JT/T 1272-2019 Explanation. 1 --- Outriggers. Figure 6 Schematic diagram of the position and size of the outriggers Explanation. 1 --- Fork groove. Figure 7 Schematic of the position and size of the fork groove5 Test method5． 1 vertical intensity With the legs retracted, place the exchange box flat on 4 horizontal pads. The size and position of the pads are the same as the corner pieces of the exchange box. In the box Load evenly on the inner floor to 1. 5Rg, keep 5min. After unloading, visually observe the vertical deformation of the exchange box. 5． 2 Horizontal intensity Load the exchange box uniformly to 1 RG, one end is fixed through the bottom hole of the corner piece, and the two corner pieces at the other end are simultaneously applied with 1 RG water Do the flat and pull pressure once, and keep each for 5 minutes. After unloading, visually observe the horizontal deformation of the exchange box. 5． 3 bottom crane test Load the exchange box evenly. 5Rg, lifting the box at a uniform speed through the side holes of the bottom corner piece, the angle between the lifting force and the horizontal direction is 45 °, and the lifting The line of force from the side wall of the box is not more than 38mm. The spreader should not apply pressure to the side wall of the box, and it should be kept for 5 minutes after being lifted. After unloading, visually observe the exchange box Deformation. JT/T 1272-2019 5． 4 End wall and side wall strength Apply equal and uniformly distributed 0 to the inner surface of the front wall of the exchange box. 5Pg load, keep 5min. After unloading, the measurement exchange box changes 形 circumstances. Apply equal and uniformly distributed 0 to the inner surface of the rear wall of the exchange box. 3Pg load, keep 5min. After unloading, the measurement exchange box changes 形 circumstances. Apply equal and uniformly distributed 0 to the inner surface of the side wall of the exchange box. 4Pg load, keep 5min. After unloading, measure the deformation of the exchange box. 5． 5 floor strength The tests were carried out with rubber-covered wheels. The axle load of the vehicle should reach 4 400 kg, each wheel load is 2.200 kg; The interval between the two wheels is 760mm, and the actual grounding area of each wheel within the above range should not be greater than 14.200mm2. The exchange box was tested under the condition that the outriggers were retracted with the four lower corners fixed and the outriggers were supported. The test car goes on the floor of the box Repeat the movement to cover the entire floor of the exchange box. The inspection vehicle stayed at the weakest position of the floor for 5 minutes. After unloading, observe the deformation of the exchange box visually. 5． 6 Rain tightness All box doors of the exchange box are closed normally. Rainfall test bench is used to simulate rainfall, and the rainfall intensity is not less than 0. 12mm/s, and cover the entire traffic Change the cabinet. After 15 minutes, observe the exchange box for leakage. 5． 7 Dimensions and maximum total mass The size of the exchange box is measured in accordance with GB/T 12673. The determination of the maximum total mass shall be carried out in accordance with GB/T 12674. 5． 8 Gripper Load the exchange box evenly. 25 Rg, use 4 grappling hooks or similar tool hooks to align the center of the gripping groove to lift the box, each supporting The supporting surface is not less than 30mm × 260mm, and it is kept for 5min after being lifted. After unloading, observe the deformation of the exchange box visually. 5． 9 guide groove Visually check whether there are protrusions within the range of 50mm from the A and B sides of the guide groove, as shown in Figure 8. Explanation. 1 --- Guide groove A surface; 2 --- Guide groove B side. Figure 8 Guide groove test chart JT/T 1272-2019 5． 10 front stop With the outriggers supported, load the exchange box evenly. 25kg, evenly apply 16kN water within 120mm from the center of the front stop Flat thrust, keep 5min. After unloading, visually observe the deformation of the front stop. 5． 11 leg stability With the outriggers supported, load the exchange box evenly. 25Rg, apply 25kN horizontal force in the longitudinal direction of the center of the end beam and check Test, push and pull once; use 22. The horizontal force is measured at 5kN, and each time is pushed and pulled, and the deformation of the exchange box is observed visually. Horizontal force The schematic is shown in Figure 9. Figure 9 Schematic diagram of the force of the outrigger stability detection level 5． 12 Fork groove Load the exchange box evenly. 6Rg, using two.200mm wide arms to protrude from the outer wall of the same side plate of the exchange box into the fork groove At 1828mm ± 3mm, the fork arm is located in the middle of the groove, and the exchange box is lifted to stay for 5min. After unloading, visually observe the deformation of the exchange box. JT/T 1272-2019 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of JT/T 1272-2019_English be delivered?Answer: Upon your order, we will start to translate JT/T 1272-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of JT/T 1272-2019_English with my colleagues?Answer: Yes. 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