This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, storage and transportation of automotive poly-V belts. This standard applies to transmission belts for fans, motors, water pumps, compressors, power steering pumps, superchargers, etc. of automobile internal combustion engines. GB 13552-1998 Automotive poly-ribbed belt GB13552-1998 standard download and decompression password: www.bzxz.net

GB13552—1998 | | tt | Some of the missing parameters in the test are supplemented by equivalently adopting the Japan Automobile Association standard JASOE109-1994 "Automotive Poly-V Belt"; the physical performance part is equivalently adopted by JASOE109-1994. Compared with the original standard GB13552-1992 "Automotive Poly-V Belt", this standard adds a four-wheel fatigue testing machine with reverse bending pulleys. Since the test temperature of the fatigue test is changed from the original standard normal overflow to 85C, the corresponding fatigue life is changed from The 100h required by the original standard has been changed to 50h. This standard will replace GB13552-1992 from the date of implementation. This standard was proposed by the former Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of the original tape standardization technology unit of the Ministry of Chemical Industry. This standard was drafted by: Guizhou Dazhong Rubber Co., Ltd. (formerly Guizhou Rubber Parts Factory). The main drafters of this standard: Song Hui'e, Lin Qiuzhi, and Zeng Jun. This standard was first published in 1992.
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1 range
National Standard of the People's Republic of China
Automotive V-ribbed belts
Automotive V-ribbed belts
GB 13552- -1998 |
This standard applies to transmission belts for fans, motors, water pumps, compressors, power steering pumps, superchargers, etc. of automobile internal combustion engines. 2 Referenced standards
The provisions contained in the following standards constitute provisions of this standard by being quoted in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB/T17516.2--1998 Dynamic test method for determination of node position of V-belt and poly-V-belt transmissions Part 2: Poly-V-belt (idt ISO 8370-2:1993)
3 Definition
This standard uses the following definition.
Effective length: When the belt is installed on two length-measuring pulleys and a specified measuring force is applied, the circumferential length of the poly-V belt passing through the effective circumference of the pulleys.
Nodal surface: A layer of the belt that neither stretches nor shortens when the belt is bent. When the belt bends on the pulley, the position of the pitch plane is expressed by the effective line difference (that is, the height of the pitch plane quotient from the outer edge of the pulley).
Forward bending: The state when the wedge portion bends inward. Reverse bending: The state in which the wedge portion bends outward. 4Shape, size and raw material requirements
4.1 Model
The belt model is used to indicate the cross-sectional shape and size. Automotive V-ribbed belts only use one model, PK. 4.2 Specifications and Markings
The specifications of automotive poly-V belts include the number of wedges, model and effective length, and are marked with the following numbers and letters. a) The first group of numbers represents the number of wedges;
b) A group of letters represents the model number;
c) The second group of numbers represents the effective length in millimeters. Example:
State Bureau of Quality and Technical Supervision 1998~10-19 approved implementation on 1999-04-01
331
Belt wedge number-
Belt model||tt| |Effective length-
4.3 Shape and structure
b
GB13552—1998
PK
The cross-section of the automobile poly-V belt is shown in Figure 1 Ring belt. ?
?
?
4.4 Materials used
4.4.1 Rubber
1150
90000
AA|| tt||1 item cloth: 2--Core wire: 3 Adhesive glue 4-Wedge glue Figure 1 Name of each structural part
The composition of adhesive glue and wedge glue should be uniform. 4.4.2 Top cloth
Use fabrics woven with cotton fiber, synthetic fiber or their blended fibers as the top cloth. The density of the fabric in the warp and weft directions should be even and free of defects and distortion.
4.4.3 Core rope
Use ropes made of synthetic fibers, and their twists should be consistent. 4.5 Dimensions
4.5.1 Cross-sectional dimensions
The reference values ??of the cross-sectional dimensions of the belt are shown in Figure 2 and Table 1. b ||tt || tt||Where part
The Y part is enlarged, and the top of the belt
You can also choose a flat operation
The cross section of the belt
Figure 2||tt| |332
Name
Name
wedge distance
wedge angle
wedge bottom arc radius
wedge top arc radius||tt| |Belt thickness
Wedge height
4.5.2 Effective line difference and exposure height
GB13552
Table 1
-1998
Belt The cross-sectional dimensions
symbol
P
rt
rh
h
h.
foot||tt| |inch
3.56Www.bzxZ.net
40°
0.25 (maximum value)
0.5 (minimum value)
4～6 (reference)||tt| |2～~3 (reference)
mm
The effective line difference and exposed height of the belt are shown in Figure 3. The exposure height is measured according to the method 6.1, and the effective line difference is measured according to the measurement method GB/T17516.2. The nominal values ??and limit deviations of the effective line difference and exposure height are determined by negotiation between the supply and demand parties. 000000000000
Ae effective line difference;b. — Exposed height, d effective diameter; dp pitch diameter Figure 3 Effective line difference and exposed height
4.5.3 Equipped pulley diameter
Considering the durability of the belt, it is recommended to use the one specified in Table 2 Pulley diameter above the minimum diameter. Table 2 Minimum wheel diameter
Forward bending
Effective diameter
Outer diameter
4.5.4 Limit deviation of effective length
55||tt| |Reverse bending
85
mm
The length of the belt is expressed as the effective length, measured according to the method 6.1. The limit deviation is shown in Table 3. The nominal value of the effective length of the belt, In principle, it should be a multiple of 10.
Table 3 Limit deviation of effective length
Effective length L
375L,≤750
750
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