3results about How to "Strong load capacity" patented technology

The invention relates to a rolling rotating shaft electric push cylinder which comprises a cylinder body defining a front-back communicated mounting space. The driving part is fixedly arranged at the rear part of the mounting space and is used for providing rotating power; the push rod assembly is arranged at the front part of the mounting space; one end of the rolling rotating shaft screw rod mechanism is connected with the driving part, and the other end is connected with the push rod assembly; the rolling rotating shaft lead screw mechanism can drive the push rod assembly to make linear reciprocating motion in the front-back direction. The rolling rotating shaft lead screw mechanism is used for transmitting power, the space utilization rate is high, the size is small, bearing capacity is high, precision is high, the structure is simple, and manufacturing cost is low.

The invention discloses a lifting appliance for steel structure construction and a lifting method, and relates to the technical field of steel structure lifting. Comprising two mounting plates which are symmetrically arranged and fixedly connected through bolts, a rotating wheel set rotationally connected between the two mounting plates through a rotating wheel shaft and a connecting block rotationally connected between the two mounting plates through a connecting shaft and located above the rotating wheel set, an upper lifting lug assembly is mounted on the connecting block, and the upper lifting lug assembly comprises a main lifting lug and a lower lifting lug; a reinforcing lifting lug; the reinforced lifting lugs are additionally arranged on the two sides of the main lifting lug, so that a reinforced lifting lug structure is formed, on one hand, the load performance of the lifting lugs can be enhanced, the deformation and cracking probability of the lifting lug structure is reduced, and on the other hand, after a single lifting lug is damaged, the other two lifting lugs can also play a load role together; the overall reliability and safety of the lifting lug structure are improved; in addition, the improved lifting lug structure is changed, stress concentration of the main lifting lug can be weakened, and therefore the lifting lug structure has higher load performance.

The application discloses a whole-pulling type box girder inner mold, which comprises a mounting frame, a plurality of mold plates are arranged on the mounting frame in the circumferential direction, the mold plates comprise a plurality of splicing units in the axial direction, the splicing units are spliced through clamping structures, at least one splicing unit is connected with the mounting frame through an ejection piece, and the remaining splicing units are movably connected with the mounting frame through connecting pieces. A single mold plate is formed by splicing a plurality of splicing units through the clamping structures, and the splicing units without the ejection piece are movably connected with the mounting frame through the connecting pieces. Therefore, when the ejection piece ejects the corresponding splicing unit, the splicing unit will drive the remaining splicing units to be ejected together. At this time, the connecting pieces are passively ejected under the driving of the corresponding splicing units, and the splicing units are not easily subjected to rigid ejection force, so that the possibility that the mold plate is slightly twisted after being ejected can be reduced, and the arrangement number of the ejection pieces of the box girder inner mold is also reduced.