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.

An open-loop GPS antenna configured on an insulation object is provided. The open-loop GPS antenna includes a feed, a high frequency circuit, a low frequency circuit and a ground. The high frequency circuit includes a first end, connected to the feed, and a second end. The low frequency circuit includes a third end and a fourth end. The third end is disposed parallel to the second end so as to couple to the second end and generate a capacitance effect to transmit a signal. The fourth end is connected to the ground.

The invention discloses a fence capable of adjusting the height for construction. According to the key points of the technical scheme, the fence comprises a fence body, a lifting plate and a lifting device, and a containing cavity is formed in the fence body. The lifting device comprises a first hinged rod, a second hinged rod, a worm and gear assembly and a rotating shaft, the rotating shaft is rotatably connected with the fence body, the worm and gear assembly comprises a first worm wheel, a first worm, a second worm wheel and a second worm, wherein the first worm wheel is matched with the first worm, the second worm wheel is matched with the second worm. The first worm is fixedly connected to the rotating shaft, the first worm wheel is located on one side of the first worm and meshes with the first worm, the second worm is fixedly connected with the first worm wheel, and the second worm wheel is located on one side of the second worm and meshes with the second worm. The two ends ofthe first hinged rod are separately hinged to the lifting plate and one end of the second hinged rod, and the other end of the second hinged rod is fixedly connected with the end face of the first worm. The fence capable of adjusting the height for the construction can adjust the height of the fence, and is applicable to different construction sites with different height requirements for the fence.

The invention discloses an outer convex inner arbitrary gear difference cam rolling moving transmission internal-combustion engine, relating to the field of fuel gas power and belonging to a multi-cylinder internal-combustion engine. The invention provides a novel internal-combustion engine; eight cylinders are distributed on the periphery of an outer convex inner multiphase inner cam symmetrically in a ring shape, so that a resultant force of the outer convex inner multiphase inner cam is zero; each cylinder piston directly acts on the outer convex inner multiphase inner cam through a push rod; and power is transmitted to an output shaft connected with a central wheel key by the outer convex inner multiphase inner cam through arbitrary gear difference inner cam rolling moving movable gear transmission. With the adoption of the internal-combustion engine, a connecting rod and a crank shaft in the traditional internal-combustion engine are saved; an outer convex multiphase inner cam rolling moving transmission mechanism has the characteristics of having no eccentric mass, and having an inertia force and working load self-balancing; the rotating speed of the output shaft depends on transmission ratio of movable gear transmission; when a movable gear frame is fixed, output by a central wheel is in low speed and large torque; and the internal-combustion engine can be widely applied to the fields of high-power engineering machinery and military and the like, such as excavators and armored cars. The internal-combustion engine is simple and compact in structure, small in axial size, self-balancing in stress, and stable in rotating.

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.

The present invention relates to a mining machine, in particular to a walking speed reducer and a mining machine with the walking speed reducer. The walking speed reducer includes: a box body and a first speed reduction device and a second speed reduction device installed in the case body, The first reduction device includes: a reduction gear set for connecting the drive motor; and a planetary reduction assembly drivingly connected with the reduction gear set; the second reduction device includes; a planetary reduction output shaft gear, a first idler assembly, and a large input The gear shaft assembly, by installing the planetary reduction assembly on the outside of the sprocket assembly, and driving the connected planetary reduction output shaft gear, first idler gear assembly and input large gear assembly in parallel to drive the sprocket assembly. The travel reducer with this structure has a large transmission ratio and a large output torque. The final power output of the travel reducer is transmitted through the large side gear, and the sprocket can be small and the driving force is large.