71results about How to "Extended overhaul cycle" patented technology

The invention discloses a bearing block, which comprises a bearing sleeve and a bearing cap; the bearing sleeve is of a structural form with a flange; a shaft through hole is formed in the other end of the bearing sleeve; the flange is also provided with a structure that a threaded hole is connected with an oil inlet way and communicates with a bearing hole; the flange is also provided with a structure that an oil outlet threaded hole, an oil outlet way and a transition section of the bearing sleeve communicate to form a loop, therefore cleaning on an oil chamber of the bearing block is realized; moreover, the oil inlet way and the oil outlet way can be arranged in a comparatively flexible manner, so that universality of the bearing block is increased and an applicable range of the bearing block is broadened. In addition, the invention also discloses a bearing block-based system and a bearing block-based method for cleaning and lubricating the bearing block; the system and the method are capable of realizing automatic operation of cleaning and lubricating the bearing block, and are high in applicability. Moreover, the invention also provides a mineral engineering machine and an engineering machine which apply the bearing block and the system for cleaning and lubricating the oil chamber of the bearing block.

The invention discloses a PVD chromium base ceramic composite coating piston ring and a preparation method thereof, and the piston ring is manufactured by plating a chromium base ceramic composite coating on a basal body of the piston ring which is treated by nitriding by adopting high power electric arc discharge method; the chromium base ceramic composite coating is composed of a bonding layer,a main wearing layer and an anti-attrition layer, wherein, the bonding layer is binded with the basal body of the piston ring in a metallurgical way, the main wearing layer is arranged on the bondinglayer, and the anti-attrition layer is positioned on the surface of the main wearing layer; the bonding layer is Cr, the main wearing layer is a Cr / CrN multilayer coating formed by the Cr and the CrNwhich are alternately arranged, and the anti-attrition layer is a Cr / Cr2O3 multilayer coating formed by the Cr and the Cr2O3 that are alternately arranged. The coating structure has reasonable design,and the manufactured coating has good cementing property, high hardness and good lubricating property. Furthermore, the method used for manufacturing the piston ring has no pollution in the preparation process, and overcomes the serious problem of environmental pollution of the conventional electrodeposited chromium; as the manufactured coating has better abrasion resistant and corrosion resistant performance compared with the electrodeposited chromium, the service life of the piston ring is greatly prolonged.

The invention discloses car-using constant pressure type closed cycle vortex compressor. It includes static plate, movable plate, and crank shaft. The static plate is set in shell body. The movable plate is cut into the static and connected with the crank shaft. The crank shaft is connected to driving gear. One end of the shell body is set exhaust port connected with high pressure chamber. And its end is set suction port. Its features are as follows: the high pressure chamber is connected to zoom-type unloading valve and interlinked to its air inlet end. Its air out end is interlinked to the suction port. The advantages are constant pressure and environment protecting. And it can be used in fuel or electric motor car.

The invention discloses car-using constant pressure type closed cycle vortex compressor. It includes static plate, movable plate, and crank shaft. The static plate is set in shell body. The movable plate is cut into the static and connected with the crank shaft. The crank shaft is connected to driving gear. One end of the shell body is set exhaust port connected with high pressure chamber. And its end is set suction port. Its features are as follows: the high pressure chamber is connected to zoom-type unloading valve and interlinked to its air inlet end. Its air out end is interlinked to the suction port. The advantages are constant pressure and environment protecting. And it can be used in fuel or electric motor car.