US 11,692,084 B2
Protective rubber track shoes for excavator
Yunhui Xu, Jiangsu (CN); Yating Xu, Jiangsu (CN); Peipei Li, Jiangsu (CN); Zaixue Wang, Jiangsu (CN); Yanan Zang, Jiangsu (CN); Zhongguang Wang, Jiangsu (CN); Guiying Zhao, Jiangsu (CN); Houluo Cong, Jiangsu (CN); and Shuaishuai Song, Jiangsu (CN)
Assigned to XUZHOU COLLEGE OF INDUSTRIAL TECHNOLOGY, Xuzhou (CN)
Filed by XUZHOU COLLEGE OF INDUSTRIAL TECHNOLOGY, Jiangsu (CN)
Filed on Nov. 16, 2021, as Appl. No. 17/527,391.
Claims priority of application No. 202110973471.0 (CN), filed on Aug. 24, 2021.
Prior Publication US 2022/0073712 A1, Mar. 10, 2022
Int. Cl. C08L 17/00 (2006.01); B62D 55/26 (2006.01)
CPC C08L 17/00 (2013.01) [B62D 55/26 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01); C08L 2207/24 (2013.01)] 1 Claim
 
1. A protective rubber track shoe for an excavator, comprising:
a first-stage rubber mix; and
a second-stage rubber mix;
wherein the first-stage rubber mix consists of 22-25 parts by weight of a natural rubber, 4-5 parts by weight of a chloroprene rubber, 40-42 parts by weight of a butadiene rubber, 30-32 parts by weight of a styrene-butadiene rubber, 60 parts by weight of a tire reclaim rubber, 8 parts by weight of a 120-mesh rubber powder, 4.0-6.0 parts by weight of zinc oxide, 2.0-3.0 parts by weight of stearic acid, 1.9-2.3 parts by weight of an anti-aging agent 0.8 part by weight of paraffin wax, 55-59 parts by weight of an intermediate super abrasion furnace carbon black and 5.8-6.2 parts by weight of an aromatic oil; and
the second-stage rubber mix consists of 233.5-249.3 parts by weight of the first-stage rubber mix, 1.0-1.2 parts by weight of sulfur, 1.3-1.5 parts by weight of an accelerator and 3.8-4.2 parts by weight of an auxiliary agent.