Page 74 - 《橡塑技术与装备》2025年12期

橡塑技术与装备
HINA R&P TECHNOLOGY AND EQUIPMENT

表 2 高速试验条件
试验阶段 1 2 3 4 5 6 7 8 9 10
-1
试验速度 /(km . h ） 0~80 0 0~80 90 100 110 120 0 130 140
负荷率 /% 90 0 90 90 90 90 90 0 90 90
试验负荷 /kg 2 610 0 2 610 2 610 2 610 2610 2 610 0 2 610 2 610
检验时间 /(h:min) 2:00 1:00 0:30 0:30 0:30 0:30 0:30 0:20 0:30 0:26

所示，技术定额及成品实测重量均符合设计目标（≤ 67
kg）。
表 3 335/80R20 技术定额表
各种部件混炼胶总重量 /kg 41.68
敷胶帘布用混炼胶总重量 /kg 8.70
钢丝帘线总重量 /kg 11.94
胎圈钢丝总重量 /kg 2.20
尼龙包布总重量 /kg 0.02 图 4 335/80R20 成品重量监测表
总 计 /kg 65.45
参考文献 ：
5 结语 [1] 郑涛 .12R22.5 18PR 子午线轮胎的设计 [J]. 轮胎工业，
本设计 335/80R20 子午线轮胎的充气外缘尺寸、 2017,37(5):269-271.
[2] 王秀梅，隋斌，李园园 .8R22.5 全钢载重子午线轮胎的设计 [J].
强度、耐久、高速性能测试均达到国标和企业标准，
轮胎工业，2018,43(4):208-210.
该产品的投产将有效填补我司相关规格产品空白，助
力公司产能提升和市场拓展。

Design of the 335/80R20 off-road tubeless all-steel radial tire

Lei Taiwei, Zhao Yibin, Tian Weijuan, Song Qian, Yao Na

(Shaanxi Yanchang Petroleum Group Rubber Co. LTD., Xianyang 712000, Shaanxi, China)
Abstract: This article provides a detailed introduction to the design and development process, as well
as the testing status, of the 335/80R20 off-road tubeless radial truck tire, focusing on four dimensions: design
objectives, structural design, construction design, and finished product testing.Design objectives: The inflated
outer diameter should range from 1028 to 1065 mm, with an inflated section width of 320 to 346 mm. The
standard rim size should be 10.0, and the tire weight should not exceed 67 kg. Structural Design: The mold has
an outer diameter of 1038 mm, a section width of 346 mm, a tread width of 305 mm, a tread height of 12 mm,
a bead fit diameter of Φ512.5 mm, a bead fit width of 279.4 mm, and a horizontal axis position (H 1 /H 2 ) of 1.049.
It adopts a lateral large block pattern design, with a pattern saturation of 60.25%, a pattern depth of 17.5 mm,
and a pattern pitch count of 32. Construction design: The tread and sidewall adopt a dual-rubber composite
#
#
#
#
structure. The 1 , 2 , and 3 belt layers all use 3×0.20+6×0.35HT high-strength steel cord, while the 4 belt layer
uses 5×0.35HI impact-resistant steel cord. The carcass ply utilizes 0.25+6+12×0.225HT high-strength steel cord.
The molding process employs a two-drum one-step large bladder turn-up molding method, and the curing
process utilizes a B-type dual-mold fixed hot plate curing press. The test results indicate that the tires designed
using this scheme meet the requirements of both national and enterprise standards in terms of inflated outer
edge dimensions, strength, durability, and high-speed performance, and are ready for mass production.
Key words: all-steel radial truck tire; tubeless tire; structural design; construction design; finished product
testing
(R-03)

·28· 第 51 卷 第 12 期