3results about How to "Impactful" patented technology

The utility model relates to ski production technical field discloses a kind of bending fatigue testing machines for ski, including drive frame, the inner wall of drive frame is rotatably connected with first roller, the top of drive frame is equipped with slide hole, the inner wall of slide hole is slidably connected with adjusting rod, the top of adjusting rod is fixedly connected with support block, the side surface of support block is provided with second roller.The utility model has following advantages and effects: support block carries out the gap size between two rollers of lift adjustment, the both ends of ski are fixed by another two groups of rollers, when testing, drive frame reciprocates up and down, so that first roller and second roller drive ski middle part repeatedly produce bending, high manganese steel layer has high toughness and wear-resistant alloy steel layer and die steel layer form triple rigidity promotion, promote the rigidity and toughness of first roller and second roller, and then surface is not easy to be deformed under the reciprocating applied pressure, prevent affecting the test precision of ski.

The invention relates to the technical field of drilling machines, in particular to a radial drilling machine for zinc-aluminum-silicon-magnesium-chromium alloy machining, which comprises an L-shaped rocker arm and a spindle box mounted on the L-shaped rocker arm, the spindle box is matched with the L-shaped rocker arm to adjust the drilling position, and a rotatable assembled drill bit is mounted on the lower portion of the spindle box. An axial flow channel and a forking flow channel are formed in the assembled drill bit; the forking runner directly sprays the gas-liquid mixed medium, and compared with an external cutting fluid spraying mode in the traditional technology, the gas-liquid mixed medium can directly reach the end of the drill bit and take away cutting powder.

The utility model relates to hydraulic impact hammer technical field especially relates to a kind of hydraulic hammer with built-in piston accumulator, including cylinder body and oil inlet channel and oil return channel.The first energy storage mechanism, the first energy storage mechanism includes first chamber and the first sealing assembly reciprocatingly slidably arranged along the central axis direction of first chamber;First sealing assembly divides first chamber into first hydraulic oil chamber and first nitrogen chamber independent of each other, and first hydraulic oil chamber is communicated with oil inlet channel;Second energy storage mechanism, second energy storage mechanism includes second chamber and the second sealing assembly reciprocatingly slidably arranged along the central axis direction of second chamber;Second sealing assembly divides first chamber into second hydraulic oil chamber and second nitrogen chamber independent of each other, and second hydraulic oil chamber is communicated with oil return channel, and first chamber is not communicated with second chamber.The utility model solves the problem that hydraulic oil produces water hammer effect in hydraulic oil pipeline when hydraulic hammer works, causes unstable hydraulic system, and low service life problem by built-in piston accumulator.