| 摘要 |
An individual replacement drive and or guide lug for missing or worn lugs on the inside circumference of various endless rubber tracks used on multi-surface vehicles. A user of multi-surface vehicles with endless rubber track drives can install the present design without the purchase of an expensive new rubber track. The original equipment manufacturer installs rubber tracks that have reinforced rubber composition lugs vulcanized on the inside circumference of the track. These rubber lugs interlock with openings in the equipment drive sprockets to drive the endless rubber track and the applicable equipment. After 250 to 500 hours of use or when used in a harsh environment the rubber drive or guide lugs start shearing and breaking off. When the drive or guide lugs start wearing additional load is placed on the remaining lugs which causes additional lugs to shear off until total equipment failure occurs. It requires 4 to 7 drive lugs to make contact with the drive sprocket segment of the endless rubber track for proper operation of the multi-surface vehicle. To install the present invention properly the surface of the inner track where the original reinforced rubber drive or guide lug was located must be prepared. When the original drive or guide lug fails it leaves an irregular surface and must be ground flat with the inner track belt substrate. To achieve proper indexing a template is placed over the track belt for locating two holes for the grade 8 bolts. After the bolts with the washer next to the head are inserted the replaceable drive/guide lug is placed over the bolts. A power impact wrench is used to tighten until the bolt head and washer compresses into the outer circumference of the track belt. The present invention is designed to have the same configuration as the reinforced rubber composition drive or guide lugs on the original rubber track. The present invention drive lugs are made from solid rigid metal or non-metallic material and are stronger and will last longer than the original rubber vulcanized lugs. After installation there is no need for torque, lubrication and or maintenance. The drive/guide lugs of the present invention previously installed on retired tracks are available to be removed and used a second time.
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