38results about How to "Large transmission" patented technology

The invention discloses a spade-type rotary cultivator. A reducer which is installed and welded to a rack is connected to multiple sets of welded connecting plates which are symmetrically arranged, and an upper suspending welding part and a lower suspending welding part are welded to the rack; an execution mechanism comprises connecting rod components, rock rod components and crank components, the connecting rod components are connected with one end of each rock rod component and one end of each crank component separately through a rotary shaft, the other ends of two adjacent rock rod components are connected through a supporting shaft, the other ends of every two adjacent crank components are connected through a drive shaft, the crank components and the drive shafts are assembled to form a crank, the supporting shaft and the drive shafts are installed on connecting plates respectively, and the execution mechanism and the connecting plates constitute a planar four-bar linkage mechanism; the crank components are in key joint with the reducer; soil spades are installed at the bottoms of the connecting components. The planar four-bar linkage mechanism is utilized to drive the soil spades to conduct inverted raindrop curvilinear motion, and thus soil loosening and rotary tillage are achieved; the structure is simple, the manufacturing and maintenance cost is low, and the safety performance is high.

The invention discloses an eccentric mechanism used on a working table of a vertical grinder, which comprises a working table, wherein a rotating shaft is installed on the working table, a bearing is assembled on the rotating shaft, an eccentric rotary table is installed on the working table and matched with a bearing outer ring, a worm gear is installed in the eccentric rotary table, a worm is assembled on the working table and meshed with the worm gear, and a disc spring is installed in a circular arc shaped groove of the eccentric rotary table; and the disc spring and the eccentric rotary table are connected together with the working table through screws. As the worm gear and worm drive mode is adopted, the accurate control of eccentricity is easy to realize; the rotating shaft is supported through a preloaded bearing during the assembly, and not only the high rotation accuracy of the eccentric rotary table is ensured, but also zero clearance in the rotating shaft of the eccentric rotary table is ensured, so that the stability and the accuracy in eccentric adjustment are ensured; and as the eccentric rotary table is fixed on the working table through the preloaded bearing and the disc spring, the eccentricity during the machining process is more convenient to adjust.

The invention relates to a convex inner two-phase cam rolling shifting transmission internal-combustion engine, relates to the field of fuel gas power, and belongs to a multi-cylinder internal-combustion engine. The invention provides a novel internal-combustion engine, the novel internal-combustion engine is characterized in that eight air cylinders are symmetrically distributed on the periphery of a convex inner two-phase cam in an annular manner, the resultant force of the convex inner two-phase inner cam is zero, an air cylinder piston is directly acted on the convex inner two-phase inner cam through a push rod, and power is passed on an output shaft connected with a center wheel in a key manner through the convex inner two-phase inner cam and the transmission of two-phase inner cam rolling shifting live teeth. The internal-combustion engine omits a connecting rod and a crank shaft in the traditional internal-combustion engine, and the internal-combustion engine has the characteristics that a convex inner two-phase inner cam rolling shifting transmission mechanism has no eccentric quality, has inertia force and operating load self balancing. The rotation speed of the output shaft depends on the transmission ratio of live teeth transmission, if a live teeth frame is fixed, the low speed high pulling torque of the center wheel outputs, and the convex inner two-phase cam rolling shifting transmission internal-combustion engine is widely applied on fields which need large power such as a project machine, military, excavators and armored cars. The internal-combustion engine provided by the invention has the advantages that the structure is simple and compact, the axial size is small, the stressing is in self balancing, and the operation is smooth.