| 摘要 |
#CMT# #/CMT# The pin (2) has an axial bore (10) whose both sides are closed by a closing unit. A ring (8) is made of a synthetic material coating and interposed between the pin and chain links (1). Connectors (3, 5) are fixed on supports (9a-9c). The bore longitudinally extending from one of supports to the other support encloses a vaporizable material (12) comprising a liquid phase and permitting to evacuate the phase towards the connectors. Calories are provided in the ring. Volume of the material in the liquid state is lower than total volume of the bore so as to allow circulation of the material. #CMT# : #/CMT# The vaporizable material is selected among water, alcohols, trichloroethylene, trichloroethane, tetrahydrofuran and thiols. #CMT#USE : #/CMT# Linking pin for use between chain links of an endless track of a vehicle. #CMT#ADVANTAGE : #/CMT# The configuration of the pin limits overheating of the rings for avoiding deterioration of the rings, thus avoiding separation of the pin from the links to improve forward motion of the vehicle and increasing the lifespan of the tracks. The configuration of the pin allows the vaporizable material to return into central zones for again vaporizing the material in a steady state such that convection movement is processed inside the pin, thus ensuring cooling in the vicinity of a crown. The pin utilizes a heat pipe to ensure cooling of the rings, thus allowing maintenance of the rings at a reasonable temperature and increasing the lifespan of the rings. The configuration of the pin facilitates supplying vacuum in the bore and supplying partial vacuum i.e. inert gas, in the bore with respect to metals or metal alloys for avoiding any problems of oxidation of the metals. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a partial longitudinal sectional view of a linking pin installed on chain links. 1 : Chain links 2 : Linking pin 3, 5 : Connectors 8 : Ring 9a-9c : Supports 10 : Axial bore 12 : Vaporizable material #CMT#METALLURGY : #/CMT# The material is selected among sodium, potassium, rubidium, gallium, cesium, mercury and sodium/potassium alloy. |
