A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The present invention relates to a crawler with a wear limit indicator, and more particularly, to a new-concept technology for extending a crawler's life by informing a user that a replacement time has come for a crawler when a lug of the crawler is worn out and preventing various foreign substances from being introduced into a sprocket hole of the crawler. With regards to a crawler which is conventionally disclosed, a worker cannot identify a degree of wear such that a replacement time of the crawler is missed and the crawler cannot demonstrate excellent performance, foreign substances introduced through a sprocket hole destroys a contact portion between a core metal and rubber, and stress is concentrated to comer portions of the sprocket hole such that crack is generated and durability is degraded. To solve the problems, a technology which enables a user to recognize that a replacement time has come for a crawler when a wear limit indicator formed to protrude from front and rear surfaces of a lug is placed at the same plane as a worn out surface of the lug, a technology in which a foreign substance introduction preventing step, which is formed to protrude from an inner surface of the lug, can prevent foreign substances from being introduced into a sprocket hole, and a technology in which a stress distributing outwardly-curved surface and a stress distributing inwardly-curved surface formed at the corner portions of the sprocket hole can distribute stress caused by an external force generated when the sprocket is engaged and driven are provided. [Drawings] [ FIG. 1] 80a
The present invention relates to a crawler with a wear limit indicator, and more particularly, to a new-concept technology for extending a crawler's life by informing a user that a replacement time has come for a crawler when a lug of the crawler is worn out and preventing various foreign substances from being introduced into a sprocket hole of the crawler. With regards to a crawler which is conventionally disclosed, a worker cannot identify a degree of wear such that a replacement time of the crawler is missed and the crawler cannot demonstrate excellent performance, foreign substances introduced through a sprocket hole destroys a contact portion between a core metal and rubber, and stress is concentrated to comer portions of the sprocket hole such that crack is generated and durability is degraded. To solve the problems, a technology which enables a user to recognize that a replacement time has come for a crawler when a wear limit indicator formed to protrude from front and rear surfaces of a lug is placed at the same plane as a worn out surface of the lug, a technology in which a foreign substance introduction preventing step, which is formed to protrude from an inner surface of the lug, can prevent foreign substances from being introduced into a sprocket hole, and a technology in which a stress distributing outwardly-curved surface and a stress distributing inwardly-curved surface formed at the corner portions of the sprocket hole can distribute stress caused by an external force generated when the sprocket is engaged and driven are provided. [Drawings] [ FIG. 1] 80a
Crawler with Wear Limit Indicator
KIM WOOJEONG (author)
2017-11-23
Patent
Electronic Resource
English