Abstract: The present invention relates to a method and apparatus for estimating a road surface type by using an ultrasonic signal and, more particularly, to a method for estimating a road surface type by using an artificial neural network model machine-learned with respect to a reflected ultrasonic signal and an apparatus for performing same. According to the present invention, provided are a method and apparatus for providing highly accurate road surface information at low cost, by machine-learning both characteristics of an ultrasonic signal reflected from a road surface and a road surface state, establishing a model between the two, and then estimating the type of the road surface by utilizing the model. In particular, even a road surface where thin ice, that is, black ice, is formed, which was not detectable in the conventional method for estimating a road-surface friction coefficient, may be accurately estimated, thereby contributing to safer driving.

Abstract: The present invention relates to an oil cooling apparatus for hydrostatic transmissions that includes a cooling main body coupled to a transmission case in which a hydrostatic transmission is installed; an accommodating groove formed in the cooling main body to accommodate oil; a cover unit coupled to the cooling main body to cover the accommodating groove; a supply port configured to supply the oil to the accommodating groove; a discharge port configured to discharge the oil from the accommodating groove; a plurality of guide ribs installed at positions spaced apart from each other to guide a flow direction of oil flowing along a flow path formed in the accommodating groove; a first hurdle unit coupled to at least one of the guide ribs to form a first flow region through which the oil passes; and a second hurdle unit coupled to at least one of the guide ribs to form a second flow region through which the oil passes.

Abstract: A cooling apparatus for a hydrostatic transmission includes a cooling body to be coupled with a hydrostatic transmission, a sidewall member protruding from the cooling body to surround a cooling flow path which cools a working fluid supplied from the hydrostatic transmission and discharges the working fluid into the hydrostatic transmission or a storage tank, an installing member protruding from the cooling body at a position spaced apart from the sidewall member to be disposed inside the sidewall member, a detour member connected to the installing member and protruding from the cooling body to extend in a first axial direction to allow the working fluid, which flows along the cooling flow path, to make a detour, and a plurality of protruding members protruding from the cooling body to be spaced apart from each of the sidewall member, the installing member, and the detour member in the cooling flow path.

Abstract: The present invention relates to an oil cooling apparatus for hydrostatic transmissions that includes a cooling main body coupled to a transmission case; an accommodating groove formed in the cooling main body to accommodate oil; a cover unit coupled to the cooling main body to cover the accommodating groove; a supply port configured to supply the oil to the accommodating groove; a discharge port configured to discharge the oil from the accommodating groove; a separating unit coupled to the cooling main body and configured to separate a flow path formed in the accommodating groove into a supply flow path connected to the supply port and a discharge flow path connected to the discharge port; and a hurdle unit coupled to each of an outer wall of the cooling main body and the separating unit, wherein the hurdle units may be formed to protrude from a bottom surface of the cooling main body so that an area of a flow region through which the oil passes is decreased.

Abstract: A cooling apparatus for a hydrostatic transmission includes a cooling body to be coupled with a hydrostatic transmission, a sidewall member protruding from the cooling body to surround a cooling flow path which cools a working fluid supplied from the hydrostatic transmission and discharges the working fluid into the hydrostatic transmission or a storage tank, an installing member protruding from the cooling body at a position spaced apart from the sidewall member to be disposed inside the sidewall member, a detour member connected to the installing member and protruding from the cooling body to extend in a first axial direction to allow the working fluid, which flows along the cooling flow path, to make a detour, and a plurality of protruding members protruding from the cooling body to be spaced apart from each of the sidewall member, the installing member, and the detour member in the cooling flow path.

Abstract: The present invention relates to an oil cooling apparatus for hydrostatic transmissions that includes a cooling main body coupled to a transmission case in which a hydrostatic transmission is installed; an accommodating groove formed in the cooling main body to accommodate oil; a cover unit coupled to the cooling main body to cover the accommodating groove; a supply port configured to supply the oil to the accommodating groove; a discharge port configured to discharge the oil from the accommodating groove; a plurality of guide ribs installed at positions spaced apart from each other to guide a flow direction of oil flowing along a flow path formed in the accommodating groove; a first hurdle unit coupled to at least one of the guide ribs to form a first flow region through which the oil passes; and a second hurdle unit coupled to at least one of the guide ribs to form a second flow region through which the oil passes.

Abstract: The present invention relates to an oil cooling apparatus for hydrostatic transmissions that includes a cooling main body coupled to a transmission case; an accommodating groove formed in the cooling main body to accommodate oil; a cover unit coupled to the cooling main body to cover the accommodating groove; a supply port configured to supply the oil to the accommodating groove; a discharge port configured to discharge the oil from the accommodating groove; a separating unit coupled to the cooling main body and configured to separate a flow path formed in the accommodating groove into a supply flow path connected to the supply port and a discharge flow path connected to the discharge port; and a hurdle unit coupled to each of an outer wall of the cooling main body and the separating unit, wherein the hurdle units may be formed to protrude from a bottom surface of the cooling main body so that an area of a flow region through which the oil passes is decreased.

Abstract: An apparatus and method for loading drums into a drum container, in which a function of gripping a lid of the drum container is added to a gripper used when a drum filled with radioactive waste is loaded into the drum container, thereby considerably reducing loading time of the drums, risk of dropping the drum, and preventing a radiation exposure risk. The apparatus includes a drum feeder transferring a drum, a drum container into which the drums transferred through the drum feeder are sequentially loaded, a support frame on which a lid of the drum container is placed when the drums are being loaded, and a crane having a gripper that selectively grips and transfers the drum or the drum container lid. The gripper includes radial gripper arms, an arm hydraulic unit reciprocating the gripper arms, jaws on inner sides of the gripper arms and gripping an outer surface of the drum, and latches for latching the drum container lid.

Abstract: An apparatus and method for automatically loading drums into a drum container, in which, when the drums filled with radioactive waste are loaded into the drum container, the drums are fed to a designated position, and placed at a fixed position, reducing loading time and manpower as well as minimizing radiation exposure risk associated with radioactive waste treatment. The apparatus includes a drum feeder having conveyor modules transferring the drums and a turntable rotating a drum transferred to an orientation where the drum can be gripped, for sequentially loading the drums, a support frame on which a lid of the drum container is placed when the drums are being loaded, and a crane that grips and transfers the drum or the drum container lid.

Abstract: An apparatus and method for automatically loading drums into a drum container, in which, when the drums filled with radioactive waste are loaded into the drum container, the drums are fed to a designated position, and placed at a fixed position, reducing loading time and manpower as well as minimizing radiation exposure risk associated with radioactive waste treatment. The apparatus includes a drum feeder having conveyor modules transferring the drums and a turntable rotating a drum transferred to an orientation where the drum can be gripped, for sequentially loading the drums, a support frame on which a lid of the drum container is placed when the drums are being loaded, and a crane that grips and transfers the drum or the drum container lid.

Abstract: An apparatus and method for loading drums into a drum container, in which a function of gripping a lid of the drum container is added to a gripper used when a drum filled with radioactive waste is loaded into the drum container, thereby considerably reducing loading time of the drums, risk of dropping the drum, and preventing a radiation exposure risk. The apparatus includes a drum feeder transferring a drum, a drum container into which the drums transferred through the drum feeder are sequentially loaded, a support frame on which a lid of the drum container is placed when the drums are being loaded, and a crane having a gripper that selectively grips and transfers the drum or the drum container lid. The gripper includes radial gripper arms, an arm hydraulic unit reciprocating the gripper arms, jaws on inner sides of the gripper arms and gripping an outer surface of the drum, and latches for latching the drum container lid.