Some standard content:
GB/T72841998
This standard is equivalent to the Japanese industry specification JISZ14031984 grip frame wood narrow "to revise (GP/T7284-[957 push frame wooden box"
Although the Japanese. "This specification is formulated on the basis of summarizing the standards of wooden packaging containers in Western countries such as the United States, it is made by my country in the future. There are still certain differences in material acceptance, production methods, production processes, management of water and transportation circulation environment conditions. Therefore, when making a revision to (13/T7284-1987) based on J1S14°31981, it also retains the scientific and reasonable content of (B/T7281-1987) that is just suitable for my country's actual situation, and has been modified in the allowable strength of the material, the safety factor, and the specifications and dimensions of the components. (3B/T72841937) has also been revised. Regulations, considering the actual application of this part of the content in recent years, it is believed that this kind of wooden box has certain differences from the frame wooden box in terms of scope of application, application objects, etc., and there is no such part in J1S7.14031984, so the part of the frame wooden box was deleted during the revision. This standard has been implemented since the implementation. At the same time, the toe A of this standard is the recommended appendix.
This standard is proposed by the State Administration of Machinery Industry
It is under the jurisdiction of the Shandong Machinery Standardization Research Institute. The main drafting units of this standard are: Machinery Standardization Research Institute, Beiren Co., Ltd. Packaging Factory, China Export: Commodity Packaging Research Institute
The main leaders of this standard are: Huang Xue, Zhang Jun, Li Xuelong, Zhang Xiaojian, Li Jianhua. 1 Scope
National Standard of the People's Republic of China
Frame wooden box
Wooden Tramed Case
GB/T 72841998
Agency GB72H41987
This standard specifies the types, design requirements and protection methods of wooden boxes for transport packaging. This standard applies to wooden boxes for transport packaging with a maximum internal size of 8000mm×3500mm×3500mm and a load weight of 500-20000kg. When the designed frame box exceeds the scope of application, it can be designed in accordance with the method of the wooden standard. 2 Reference Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 41-1986
Hexagonal Nuts Grade C
GR/T 95-1985
GR/T 102--1986
G3/T 897...- 1988
GB/T 953
G13/1 4768
GB/1 4879
Flat washer Figure 1 Grade C
Hexagon head wood screws
Stud studs m-1d
Equal length stud studs Grade C
GB/T 5048.
1985
GB/T 339K--1985
GB/T 5780--1986
GB/T 5781--1986
G;T 6170--i986
G3/T 7350—1987
Anti-rust packaging
Rust-proof packaging
Moisture-proof packaging
Test methods for large transport packages
Eight-head bolts--Class C
Six-head bolts--Steel-steel-core
Type 1 hexagonal nuts-Class A and B
Technical conditions for waterproof packaging
GR,T 984. 4...1988
Plywood General technical conditions for ordinary plywood (13.T 12626.21990
GB/T 13123---1951
GB/T 13384-19H2
GE/T15172—1994
3 Types
Technical requirements for hard fiberboard
Bamboo plywood
General technical conditions for packaging of electromechanical products
Sampling inspection of shipping packages
Grip wooden boxes are divided into the following three types according to the laying and assembly methods of the box boards, as shown in Table 1. The structural types are shown in Figure 1. Approved by the National Bureau of Quality and Technical Supervision of Mongolia on November 18, 1998, and approved on September 1999 01 Implementation
2-B type
3-A type
a) IA type
CB/T7284-1998
Box board method
Wooden board enclosure
Plywood enclosure
Lattice box
Grip box type
Assembly hall type
Copper nail assembly
Screw assembly
Steel nail assembly||tt ||Assembly prohibited
Assembly with steel bolts
Assembly with bolts
Applicable scope
For interiors that require protection from water, moisture, etc.For interiors that do not require or only require simple protection from water, moisture, etc.
Type IB
t)Type B
Figure | Example of this box
4 Basic requirements
4.1 Materials
4.1.1 Wood
GB/T 7284 -- 1998
4. 1. 1. 1 Types
The main load-bearing components of the frame wooden box are made of larch, pine, fir, spruce, wood and ash. The same wood with higher strength can also be used. The materials for other components should be selected from appropriate materials under the premise of ensuring the strength of the box. 4.1.1.2 Moisture content
The net moisture content of wood is generally not more than 20%, and the moisture content of wood used for auxiliary sliding wood, 3-type wood, etc. can be below 24%. 4.1.7.3 Defects
The allowable defect limit of this material shall be in accordance with the provisions of B/T13384. 4.1.1.4 Dimensional deviation
The dimensional deviation of the width and thickness of the wood components of the frame wooden box shall be in accordance with the provisions of Table 2. The size deviation range of width and diameter of wood components
29-100
4. 1. 1.5 Allowable strength of materials
The allowable strength of materials for wooden boxes shall be in accordance with the provisions of Table 3. Table 3 Allowable strength of materials
Anti-blur strength and
(relative) anti-blur strength f
MPa(kgf/cm*)
(along the grain) tensile strength is not
14.0:143)
The minimum member size specified in the calculation tables of this standard is the nominal size calculated based on the allowable strength in Table 3. For the tree species used for concrete reinforcement, the size of the plate or component can be changed according to the ratio of its allowable strength to the allowable strength in Table 3 (the allowable strength is equal to the test strength divided by the safety factor, the safety factor for compression and compression is 7, and the safety factor for compression is 5.5). 4.1.2 Plywood
Plywood is generally selected from other plywoods of the same type or with the same or higher performance specified in GR/19846.4 and other plywoods of the same quality as specified in GR/19846.4. If bamboo plywood is selected, its performance shall comply with the provisions of G3/T13123. The bottom plate of the type 2 box and the inner top plate of the type 1 and type 2 boxes shall be other plywoods of the same type or with the same or higher performance specified in the above two standards. 4.1.3 Fiberboard
Fiberboard should generally be of grade 3 or above as specified in (i15/T12626.2). 4.1.4 Metal parts
4.1.4.1 Saw nails
Solution! According to the provisions of relevant standards, glue-coated nails, barbed nails, pallet nails, nails for automatic nailing machines and IJ-shaped nails can also be used. 4.1.4.2 Bolts, nuts and washers
G/T112, GB/T5780, GB/T5781, GB/T953, G1/T897: nuts shall comply with the provisions of GB/T11 and GB/T6:70, washers shall comply with the provisions of GB/T95 4.1. 4.3 The minimum width of the steel strip
is 16mm, the minimum thickness is 0.45mal, and the material should meet the requirements of relevant standards. 4.1.4.4 Edge protection and corner protection
GB/T 7284 —1998
The material of the edge protection is the same as that of the steel strip. The thin steel plate used for the corner protection can be rust-proofed when necessary. The width of the edge protection is not less than 19mm; the thickness is not less than 0.5mm, the bending length is not less than 1100mm, the thickness of the corner protection is not less than 0.5mm, and the length of the bottom edge is not less than 140m. Its shape is shown in Figure 2.
Figure 2 Edge protection and corner protection
4.1.4.5 Other metal accessories
Other metal accessories can be used as needed, such as metal ventilation hole covers, iron beam bearings, lifting expansion irons, various fasteners and reinforcing components. 4.2 Cover load and stacking load
4.2.1 The top cover load mainly refers to the upper load borne by the beam, which is 5.0kPa (510kgf/m\) according to the top cover area. 4.2.2 The stacking load mainly refers to the upper load borne by the side, which is 5.0kPa (510kgf/m\) according to the top support area and the provisions of Table 1. Table 4 Stacking load
Maximum content
.5 000
>5 000 --10 000
Stacking mother load
kPa (kgf/m\)
10.0 (1 (020)
15.01530)
20.0(2040)
4.3 Gap
To prevent the contents from being damaged by contact with the inner surface of the frame wooden box, the gap can be filled with punching materials or appropriate gaps can be made. 4.4 Method of expressing the dimensions of frame wooden boxes
The dimensions of push-frame wooden boxes are expressed by internal dimensions or external dimensions, and the provisions for internal dimensions are as follows: length: the distance between the inner surfaces of the end columns; width: the distance between the inner surfaces of the side columns; height: the distance between the outer edges of the upper and lower frame wood on the side. 5 Structure and dimensions
5.1 Base
The base is generally composed of sliding base, end wood, pillow, bottom plate, and auxiliary sliding wood. Its basic structure is shown in Figures 3 to 6. Note: After the contents are placed on the bottom and before the sides and ends are installed, the base can only be lifted and unloaded by the base. Naomu
Thickness of Changyan
Precision assisted sliding
Thickness of Xie's push-down technique
Base (for type 1 and type 2 boxes)
Inner thickness of grape
CB/T 72B4
Auxiliary sliding wood
Figure 4 Base (for type 3 boxes)bzxZ.net
When the floating depth is less than 1/3 of the wood's original depth
Figure 5 Base (applicable to small items) Figure (Base (bottom plate and sleeper)
5.1.1 Sliding wood
5. 1. 1. 1 The size of sliding wood shall be in accordance with Table 3 Regulations. For the operation of the machine, the general use of the machine is 5.1.1.2 The slides should be evenly arranged. For the bottom plate and sleepers, if the contents need to be fixed with bolts, the position of the slides should be appropriately offset according to the position of the screw holes. The center spacing of the slides is generally not more than 1200mm. When the vehicle needs to be loaded and unloaded horizontally, the center spacing of the slides should not exceed 1000mm (when the contents are less than 1500kg, it should not exceed 800mm). When the spacing exceeds the specified spacing, the middle should be increased with alternate cross-sectional size or the same thickness. 5.1.1.3 The slide should be made of whole wood as far as possible. If the length is not enough, it should be butt-jointed according to the provisions of Figure 7, but the butt-jointed position cannot be at the center of the length. The butt-jointed positions of each slide should be staggered. When the width of the slide is less than 90mm, use M1 bolts for butt-jointing. When it exceeds 9mm, use M12 screws for butt-jointing.
5.1.1.4 When loading and unloading with rollers, a 45° chamfer should be made at both ends of the slide. The thickness cut off should not exceed 1/2 of the thickness of the slide. The ends of the slide should not protrude outside the box.
Inner material tray
2>700 ~. 1 000
100~[500
1 50G 500 ~-10 000
~10 600~ 12 500
>32501~-15060
The inner length of the box "
-15 000 ~17 500:
17 500-20 000
GB/T 7284 -- 1998
Dimensions of each component of the base
(×thickness)
(width×thickness)
100×50
90×60
75×75
or 120×Gl
90×90
100×100 or
150×75
120×120
150×150
18XJRO
90×45 or
60×60
75×75
109×100
120×120
150×15
Bolt diameter for shrinkage and sliding
10 (or nailed)
Auxiliary
Floating degree "
Compression of bottom plate
Plywood
1) If the allowable strength of the wood is lower than 90% of the value specified in Table 3, a large-grade sliding wood (largest of 1R0mm×180m, 2:0mm and 2:10mm) should be used. Wood with an allowable strength lower than 8U% of the value specified in Table 3 cannot be used as attachment wood. 2) If the inner length of the box exceeds the range given in the table, a sliding wood of the next size can be used, or the distance between the lifting points can be shortened to minimize the range given.
3) For A-type boxes, the thickness of the steel bars of B-type boxes shall not be less than 60mm:1 For use when the original length of the lower bracket is 10mm or 45mm. 5) For use when the lower bracket is changed from 50mm to 60mm. 6》 When a slot for a car loan is provided, or a rope opening is provided in the middle of the box, the height of the auxiliary slide shall comply with the provisions of Figure 1, Table 5 or Figure 9. 5.1.2 Auxiliary technology
5.1.2.1 The auxiliary slide is nailed to the bottom of the slide with steel nails, and the steel nails are arranged in two rows in an alternating manner. The interval between the steel nails in the same row is not more than 30" mm. 5.1.2.2 The thickness of the auxiliary slide shall comply with the provisions of Table 5, and its width shall not be less than 80% of the width of the slide. The two ends of the auxiliary slide shall be less than 200mm1 or less than 10% of the length of the slide, but it can also be properly adjusted according to the shape of the contents or the position of the center of the pressure, and the auxiliary slide can be butt jointed in the long direction.
5.1.2.3: When the auxiliary slide is equipped with a fork hole, its structure and size shall be in accordance with the provisions of Figure 8 and Table 6. When a rope hanging hole is set in the middle of the wooden box, the installation size shall be determined in accordance with Figure 9. When rollers are required for loading and unloading, the two ends of the auxiliary slide shall be chamfered at 15°, and more than two nails must be nailed at the cut.
5.1.3. Ends
The end wood is installed on the slide with bolts or steel nails. The end wood of type 2 box should be installed on the plywood bottom plate. The distance between the outer side of the end wood and the end of the slide is equal to the thickness of the end plate. The size of the end wood and the diameter of the bolt used to connect it to the slide shall be in accordance with the provisions of Table 5. The length of the end wood is proportional to the inner width.
Packing transmission total quality department
-1 000--7 010
2-7 0--12 000
Axle slide
GB/T 7284-1998
a) Butt joint with wooden boards (middle wood)
h) Butt joint with wooden boards (slides on both sides
Center
Butt joint with steel plates
Figure 7 Butt joint of slides
Figure 8 Hole
Table 6 Trusted Size Ten
5.1.4 Bottom Plate
Auxiliary Kidney
GB/T728A—1998
Scholars Long Road
Figure Middle Hanging Rope Port
5.1.4.1 The thickness of the bottom plate shall be in accordance with the provisions of Table 5. When the bottom plate is used as mahogany, its ear length shall be in accordance with the provisions of 5.1.5. The width of the bottom plate of type 1 box shall not be less than 120mm, the width of the bottom plate of type 2 box shall not be less than 200mm, and the width of the bottom plate of type 3 box shall not be less than 150mm5.1.4.2 The bottom plate is installed on the slide with steel nails. The laying method of the bottom plate is as follows:8) For type 1 and type 2, the spacing of the bottom plate shall not be greater than 10mml, and for type 3 box, the spacing of the bottom plate shall not be greater than 200mm. b) The bottom plate is generally a whole plate in the length direction, but less than 30% of the bottom plate can be butted on the middle slide. e) Type 2 box can also use the bottom plate of Type 1 box. 5.1.5 Technical Specifications
5.1.5.1 When the sleeper is subjected to uniform load in its length direction, the required thickness and total width of the sleeper can be obtained from Table 7, and the cross-sectional size and number of the sleeper can also be obtained from Table 8. 5.1.5.2 When the sleeper is subjected to two-point concentrated load, its allowable bending load is calculated using the method of A1 in Appendix A (Standard Appendix). 5.1.5.3 When the sleeper is subjected to a concentrated load at the center, its allowable bending load is half of the uniform load. 5.1.5.4 When there is an intermediate slide, the load that the intermediate slide can bear can be deducted from the load of the contents according to formula (A4) in Appendix A. 5.1.5.5 The slide is installed on the slide 1 with screws or steel nails, and the diameter of the connecting bolts shall be in accordance with the provisions of Table 9. This can also be installed on the bottom plate E.
When the base shown in Figure 5 is used, the thickness of the sleeper should be the same as the thickness of the end. 5.2 Side and end faces
The structures of Type 1 and Type 3 boxes are shown in Figures 10 and 11, and the structures of Type 2 boxes are shown in Figures 12 and 13. 5.2.1 Frame structure
a) The vertebral frame structure of Type 1 and Type 3 boxes can be found in Figure 14. The meaning of the structural code in Figure 14 is shown in Figure 15; b) The general frame structure of Type 2 boxes is in accordance with the provisions of Figures 12 and 13, and the frame structure of the end face is the same as that of the side face. c) When the contents are an integral whole in the length direction and have sufficient rigidity, the frame structure of Type 1 and Type 3 boxes can be simplified by bracing at both ends, as shown in Figure 16: d) When the height of the box board of Type 2 boxes is not more than 1220mml and the grain direction of the glued surface is horizontal, the lower frame wood can be omitted, as shown in Figure 17.
Outer Norben
Inner
Bending load of each 10mm wide sleeper (uniform load)
1R0.5 1 328.5
[2 41-1. 1
(173.1)(213.7)(307.7)
1485.01833.32640.01124.9
(186.9)<269.2) (420,6)
(121:1)
N(kgf)
5 279. 917 186. 6
1 751. 9.6 467.9
(336.5);t484. 63j(659.3)
(76.5)(110.1)(135.o6195.s):tob.9)687.5
(80,8)
(179. 5(280. 4)/(403. 8)
(g, 6)
(549. 1) (717. 9)
975.3 6 408.
(372.?) (507. 3)
(106. 82|(153, 8) (240. 4)
1 394. 2 + 51*. !
4 c3.1. 2
(346. 1) (471 1)j(635. 3)
(210. 3) (312. 9)
2 703. 213 801. 5
1 242.3[1 941 .1
(197.)(38:.0)
1588.!6505.7
The inner part of the outer side
(8, 5) | |tt | tt | 695.0
(67-3)
1 178. 61 697. 1
(120. 2) (173. 1)
3 249, 2
(253. 7)(331.3)
2 310. 0; 3 017. 1|| tt||(235.6)(307.7)
1485.02 021.2
(105. 2)151. 4)
(99.0)(112.5)
<194.6)(253.4)
Selection method of wood strength: The allowable load in this table is multiplied by the total width required for the sleeper. The value obtained must be greater than the load of the contents, and the total width of the sleeper must be less than the length of the bottom of the contents that can contact the sleeper in the direction of the box length.
When the wood is stacked, the allowable load of each of them should be added together for calculation. This table is compiled based on the formula (A1) in Appendix A and the allowable tensile strength of this material is 11.0 MPa (112kgf/cm). According to the actual tree species used, the allowable gastric curve load listed in this table should be multiplied by /11.0 (RMB 112), and the obtained value should be used as the allowable sleeve curve load compensation for the tree species (the same as Table 8) GB/
Outer belt
Inner two
90x2190X39 H1X 15 00:15
1267:1 980
(120).(202)
1 086 :1 697
(11)1731
60×69
5, 289
400×50:90×60
Allowable bending test of polar core clothing (uniformly distributed load)
75×75/120×68
90×90
17 820
(1 652)(1 077)
[(1817)
（323)
15 274
(1558)
(1363)
(1211)
10 692
wide library).
Nekgf)
15075100 tt||(1 803) .(2 137)
(1577)
(1869)
(1 662)
(1402)
14 666
(1496)
1125013333
(1147)
(1360)
(1052)(1246)
11 282
:(1 0683
35 63 9
(3 634)
12 239
(4 307)
36 215
70 713
(3692)
(7211)
(3 115)
61 H74
106918
[2 726)(3 230](6 309)
(10 903)
(2 423)
21 381
(1982)
(1817)
(1677)
01558)
150018
54 999
(2 N7) (5 608) (9 G91)(15 389)25 344
(2584)
(2349)
49 499
( 048)
(4589)
(426)
(2154)
(1988)
(3883)
(1846)
(3605)
16 896
(1 454)(1723)||tt ||(1363)
12 579
(1 615)
14 908
(1 :203
32 999
(3565)
135826232749
(8 2)(13 850)
77 759
123478|| tt||(20 675)
184317
( 929)
(12 5913j18 7950
(7 268)(11 542)
Ih8 57
(17 239)
1614 481
155 961
56 7093j(18 654
(159614
fl ou6||tt ||(5,875)
(3,155)/<3,461)
29,117
5C 314
(5,131)
144821| |tt||14,768）
135166
(9,234)1613,783)
126718
(5,556) (12,922)
71 808 119 2641
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