4results about How to "Limit deflection" patented technology

This utility model relates to the field of electric motor technology, specifically disclosing a rack guide structure, including a guide sleeve with a guide channel. The cross-sectional shape of the guide channel is non-circular or non-arc, and the guide wall of the guide channel includes at least one planar segment. The guide channel is used to cooperate with an anti-rotation part on the rack. The cross-sectional shape of the anti-rotation part is adapted to the shape of the guide channel, allowing the rack to reciprocate along the guide channel. A pump electric motor includes a motor body, a gear, and a rack. The motor body drives the gear to rotate, and the rack meshes with the gear, serving as the reciprocating drive source for the pump body. It also includes the aforementioned rack guide structure. The guide sleeve in the rack guide structure is fixedly installed on the housing of the motor body, and the anti-rotation part of the rack cooperates with the guide channel of the guide sleeve. This solution addresses the problem of easy wear caused by rack deflection or tilting in current rack-output motors.

The application relates to a material belt cutting device which comprises a workbench and a material placing plane, the material placing plane is provided with at least two positioning members matched with material belt positioning holes, the workbench is provided with a discharging groove in a cutting area; a positioning mechanism is rotationally connected with the workbench, has a pressing plane, and is provided with a punching groove corresponding to the discharging groove on the side; a punching head of a punching mechanism reciprocates in the punching groove, a cutting edge faces the material placing plane and is opposite to the discharging groove; a pressing mechanism is transmissionally connected with the positioning mechanism or the workbench, a pressing piece presses the back end of the punching head to complete cutting, and cutting off materials are discharged through the discharging groove. The above-mentioned cooperation forms a chain link of centering anti-rotation, surface pressing limiting, guiding punching and coaxial chip removal, solves the problems of unstable alignment, insufficient pressing, no guiding and poor chip removal, improves the alignment stability and the repeat precision, improves the cutting quality and facilitates rapid model change.

The utility model relates to the technical field of faucets, and provides a waterway lifting combined core body and a faucet assembly with the combined core body, which are used for solving the problems of inconvenience in assembly and poor sealing performance in the prior art, and comprise a shell and an inner core body, a water inlet pipeline is arranged at the lower end part of the inner core body, and a valve core mounting cavity is arranged at the upper end part of the inner core body; a water way lifting groove is formed in one side of the outer wall of the upper end of the inner core body in the longitudinal direction, a water outlet communicating with the water way lifting groove is formed in the bottom of the groove bottom of the water way lifting groove, a horizontal channel is arranged between the water outlet and a water outlet hole in the bottom face of the valve element installation cavity in a communicating mode, and an annular sealing groove is formed in the peripheral side of the water way lifting groove. A split section is arranged on the upper end portion of the inner core body in an outward and downward inclined mode from the top of the inner core body, the split section splits the other side, located on the waterway lifting groove, of the upper end portion of the inner core body to form a split block convenient to install, and the split section passes through the bottom face of the valve element installation cavity, so that a limiting plane is formed on the inner side of the upper end portion of the split block convenient to install.

This invention discloses a material rack for vertical preparation of aluminum alloy forgings and its usage method, belonging to the field of metal heat treatment technology. The material rack includes a base plate, four side plates, support columns, a cross structure, connecting pieces, auxiliary beams, chains, partition frames, and a lifting structure. The base plate and four side plates together form a frame. The partition frames divide the inner cavity of the frame into multiple placement spaces. Connecting pieces are provided on the support columns and cross structures. Adjacent connecting pieces are connected by auxiliary beams. Chains are provided on opposite auxiliary beams for binding and fixing the forgings. The usage method includes: vertically placing the forging into the placement space of the frame, binding the forging with chains and fixing it to the auxiliary beams, releasing the overhead crane, and lifting the material rack into the heating furnace through the lifting holes. This invention can effectively prevent tilting of large aluminum alloy forgings during vertical preparation, ensuring that the forgings remain vertical during heating and quenching, thus improving the performance of the forgings.