37results about How to "Rigid foot" patented technology

The invention discloses a telescopic formwork support beam. The telescopic formwork support beam comprises a sub beam, a main beam, ribs, pin bolts and pin holes, wherein the main beam is a ladder-shaped strip truss, upper and lower edges of the main beam are steel pipes, and the two steel pipes are fixedly connected by the ribs, and the tilting angles of the ribs on the two ends are equal; 6-10 axial equally-spaced pin holes are respectively arranged on the two ends of the upper and lower edges of the main beam, the sub beam is an open shaped frame, the upper and lower edges of the sub beam are steel pipes, and the outer end of the sub beam is fixedly connected by two tilting ribs along the same direction; the tilting angles of the ribs connected with the sub beam are equal to that of the ribs connected with two ends of the main beam; and the upper and lower edges of the open end of the sub beam are respectively axially inserted into pipes on the two ends of the main beam to form a nesting structure, and the sub beam is positioned relatively to the axial mounting position of the main beam by making the pin bolt traverse the pin hole. The telescopic formwork support beam is in a truss structure, the length of the beam is adjustable, and the structure strength is good; and during the mounting process, the mated vertical top brace is less, thus the auxiliary materials are saved, and the traffic space of the construction site is improved; and more importantly, the telescopic formwork support beam can be repeatedly used and the use cost can be saved.

The invention relates to a wind energy collecting device and a wind power generation system thereof. The wind energy collecting device comprises a cylinder or title frame type tower body standing on the ground, the collecting device is characterized in that the top of the tower body is provided with two independent operative water pumps in a back to back manner, the tail ends of driving rotor shafts of the two water pumps are respectively provided with a wind turbine, the rotation directions of the two wind turbines are reverse, high-pressure water outlet pipes of the two water pumps are connected in a high-pressure water-delivery main pipe after confluence; and the tail end of the high-pressure water-delivery main pipe is provided with a ration nozzle, high-velocity waterflow jetted by the nozzle is used for driving each water turbine to rotate, and each water turbine drives the generator to generate electrical energy. The wind energy collecting device provided by the invention has the advantages that the design is reasonable, the structure is simple, and the wind energy utilization rate is improved; the volume of each water pump of the wind power generation system and the nozzle of each water turbine are quantitative, thereby ensuring the constant total drag coefficient of a whole waterpower drive system, the ratio of the rotation rate to wind speed of each driving rotor shaft of each water pump is constant, namely the blade tip speed ratio of a blade is constant; and the conversion efficiency of each wind turbine to the wind energy corresponding to different wind speeds can reach the maximum value.

The invention discloses a breathable multifunctional pillow inner with moisture penetrability filled with fibers. The fibers consist of three hollow fibers with circular arc cross sections. The circular arcs are connected in such a way that every two are externally tangent with each other, and a connected closed region is an entity. The hollow fibers are made from polyethylene terephthalate with the intrinsic viscosity of 0.65-0.66, the melting point of 266 DEG C, the carboxyl content of more than zero and less than or equal to 25 equivalent/g * 10<6>, and the ash content of more than zero and less than 0.04 percent. The breathable multifunctional pillow inner with moisture penetrability is made of fibers which are three-hole hollow fibers with three outward openings, thereby the pillow inner is breathable and has moisture penetrability. In hot rolling process, a shape with six interlaced holes can be formed between the adjacent fibers and the fibers have openings, thus the pillow inner made from the fibers has excellent moisture penetrability.

The invention discloses a leveling lifting device for a parking equipment trolley, and relates to the field of parking equipment. The leveling lifting device comprises power detection components, turning plates, a leveling component, supporting components, transmission shafts and bearings; the two supporting components are located on the left side and the right side of the leveling component correspondingly, the bearings are arranged at the two ends of the opposite sides of the two supporting components through bolts, the transmission shaft is arranged between the two bearings on each supporting component, and the turning plates are arranged on the transmission shafts; and the two ends of the supporting components are connected with one ends of the power detection components, and the turning plates are hinged to the other ends of the power detection components through hinge pins. The device not only solves the problem of low precision caused by electric appliance stop control in the moving process of a moving component, but also can avoid equipment faults caused by loosening and breaking of a chain or a steel wire rope, and can be widely applied to vertical lifting parking equipment.

The invention relates to an indexable type micro multifunctional numerical control machine; wherein, a main motor, a driving wheel, a main spindle box and a chuck are sequentially connected; the main spindle box and a main spindle box base are fixedly connected; a sliding upright column, a round rotary table, a spacing guiding sliding block and a sliding guiding rail are arranged in inner cavity of a horizontal type bed body and can be translated from left to right; an end of the round rotary table is articulated with the spacing guiding sliding block and the other end is connected with the sliding upright column which is externally fixedly connected with the sliding guiding rail; the main spindle box base is fixedly connected with the upper surface of the sliding guiding rail; the sliding upright column is internally provided with a lead screw which is connected with a lead screw feed motor; a locking block is arranged along left end of the guiding rail of the bed body and a limit switch is arranged at the left end part of the guiding rail of the bed body; a bed body step is equipped at the bottom of the bed body at the left end; an inner cavity locating groove is arranged at the bottom of the horizontal type bed body; the horizontal type vehicle main spindle box base is locked with a horizontal vehicle body by a locking device; the spacing guiding sliding block, etc. are translated to the left along the inner cavity of the horizontal type bed body and rotate clockwise with 90 degrees around an articulated pivot of the round rotary table and the spacing guiding sliding block, thus showing a vertical milling numerical control machine. The indexable type micro multifunctional numerical control machine has the advantages of small volume and wide use.

The invention provides an automatic double-rotation milling head comprising a B shaft power and position module, an A shaft power and position module, a processing main shaft, a main shaft connection seat, a structure part, and an installation seat, wherein the B shaft power and position module and the A shaft power and position module are vertical to each other; the A shaft power and position module can rotate with any angle in a range being +/-360 degrees around the B shaft power and position module; the main shaft connection seat is arranged at the side part of the A shaft power and position module; the connection end of the processing main shaft and the main shaft connection seat can be fixed by a bolt; the processing main shaft is arranged at the rotation part of the A shaft power and position module; the rotation part can drive the processing main shaft to rotate with any angle in a range being +/-360 degrees around the A shaft power and position module; the structure part is in a double-layer structure main body, is arranged between the B shaft power and position module and the A shaft power and position module and can be used as a fixing part for the B shaft power and position module and the A shaft power and position module; the installation seat is arranged above the B shaft power and position module; an adaptor seat is connected onto the installation seat or the installation seat is connected onto a device by an adaptor plate.

The invention discloses an automatic assembling machine of a column oil cylinder and belongs to the technical field of automatic devices. An assembly module is fixedly connected with a rotating modulethrough a connection tool. The automatic assembling machine of the column oil cylinder comprises the rotating module and a column oil cylinder assembling module. The rotating module is composed of aportal frame and a rotating transmission mechanism. The column oil cylinder assembling module is connected with the rotating module. The assembling module fastens a middle cylinder and an outer cylinder which are conveyed by a truss, then the rotating module rotates by 90 degrees, the assembling module is driven to rotate by 90 degrees to be in the vertical state, and then the assembling module installs the middle cylinder into the outer cylinder; the rotating module overturns by 90 degrees, the assembling module is driven to be in the horizontal state, the truss places a plunger into the assembling module, and the assembling module and the rotating module cooperate to install the plunger into the middle cylinder in the same way. The automatic assembling machine of the column oil cylinderhas the advantages of being high in assembling efficiency, enough in rigidity, high in universality and the like.

The invention discloses a machining technology for a thin-wall cylindrical part with a boss in an inner hole. The machining process comprises the following steps: step 1, completing rough turning of the inner shape, rough turning of the outer shape and semi-turning of the outer circle datum of a pipe body on a common numerical control lathe; and step 2, selecting four-axis machining equipment with a rotary table or a dividing head, and wrapping the semi-turning outer circle part of the pipe body workpiece with a self-made special clamp. The machining process effectively solves the problems that: the two ends of the inner shape of a pipe body workpiece are subjected to multi-pass finish turning machining through a common numerical control lathe, due to the influence of multiple clamping errors and machining and clamping deformation factors,the machining precision is poor, scrap iron discharging is difficult, the cutting state is poor, a slotting machining face and a turning machining face do not coincide, and shutdown measurement, deviation value judgment, coordinate system center adjustment, program modification, relatively large machining allowance and a lot of time for roughly interpolating the allowance are caused by semi-finish machining allowance in actual machining.

The invention discloses a volute changeable type marine self-priming centrifugal pump. The changeable type marine self-priming centrifugal pump comprises a pump body, a volute, an impeller, pump covers, a water pipe, a shaft seal, a shaft base, a pump shaft and a valve plate. The pump body is a horizontal shell, the two ends of a pump body through hole are provided with the pump covers, the top of the pump body is provided with an upward pump outlet, and a pump inlet is formed in the left side of the pump body, wherein the included angle between the plane where the pump inlet is located and the plane where the pump outlet is located is 90 degrees. The volute is axially positioned and installed in an inner cavity in the right side of the pump body, one face, facing rightwards and provided with a volute channel, of the volute is provided with the impeller, the pump shaft axially penetrating through an impeller inner hole is exposed out of the pump covers at the two ends, and the exposed shaft ends of the pump shaft are sleeved with the shaft seal and the shaft base from interior to exterior respectively to form a double-bearing and double-sealing integrated structure in which the impeller rotates relative to the volute. On the premise that the specification is determined, volutes or impellers with different sizes can be independently exchanged, the volutes and the impellers with the different sizes can be exchanged at the same time, the optimal hydraulic performance matching can be achieved through combination, the pump can operate under the most economical work condition, and the volute changeable type marine self-priming centrifugal pump is especially suitable for vessel mating.