5results about How to "Reduce overhang length" patented technology

The utility model discloses a double-station polishing machine based on a single-side driving clamping mechanism, which comprises a base body, two stations are arranged on a table top of the base body, a polishing main shaft is arranged between the two stations in a rotating connection mode, and polishing wheels corresponding to the two stations are arranged at two ends of the polishing main shaft. The double-station polishing machine further comprises a polishing driving device used for driving the polishing main shaft to rotate. Each station is provided with a longitudinal sliding table, a swing driving device, a swing table and a single-side driving clamping mechanism. The ball bearing polishing device is provided with the polishing wheel rotating at a high speed and can drive a ball bearing workpiece to swing while rotating, so that mechanical polishing of a ball is achieved, operation efficiency and polishing quality are improved, labor intensity of operators is relieved, and potential safety hazards are eliminated.

The application relates to the technical field of grinding equipment, and particularly discloses an electric tool output shaft mandrel positioning grinding equipment. The electric tool output shaft mandrel positioning grinding equipment comprises a spindle box and a grinding device, the spindle box is provided with a spindle, the spindle is provided with a self-centering clamping mechanism, the grinding device comprises a rack, a first driving device and a second driving device, the rack is provided with a rotating disc through a hollow shaft base, a plurality of sliding grooves are arranged on the rack, sliding seats are arranged in the sliding grooves, hollow guide pins and axles are arranged on the sliding seats, and a grinding wheel and a driven wheel are arranged on the axles; a guide groove matched with the hollow guide pins is arranged on the rotating disc, the rotating disc is driven by the second driving device, and all the driven wheels are driven by the first driving device. When fine grinding is carried out, the grinding wheel simultaneously works around the output shaft mandrel, the circumferential grinding cutting forces on the output shaft mandrel are offset, and the problems of position deviation, bending deformation and machining vibration caused by unilateral force on the output shaft mandrel are avoided, and the fine grinding precision is obviously improved.

The utility model relates to the technical field of building structures, and discloses a building structure system close to a land red line, which comprises a retaining wall and a ground building, the retaining wall comprises a vertical wall plate and a heel plate, one side of the vertical wall plate is close to the land red line, and the heel plate is provided with a plurality of longitudinally arranged holes. A first pile foundation of the ground building is located on the side, away from the land red line, of the vertical wall plate, the first pile foundation penetrates through the hole, a first bearing platform is arranged on the top of the first pile foundation, an outward-cantilever bearing beam is arranged on the side, close to the land red line, of the first bearing platform and located above the vertical wall plate, and an outer-row bearing column is arranged on the outward-cantilever bearing beam. Second pile foundations are arranged on the sides, away from the vertical wall plates, of the first pile foundations, second bearing platforms are arranged on the tops of the second pile foundations, and the second bearing platforms are connected with the adjacent first bearing platforms through internal balance beams. The retaining wall and the ground building do not influence each other, the stress structure is safe and reliable, and the area of the constructable land can be effectively utilized.

This utility model discloses a grid structure for dredging and maintenance of an inverted siphon culvert. It includes a vertical shaft with a horizontal grid at the shaft opening. A debris-blocking opening is formed on the side wall of the shaft, and a debris-blocking grid is vertically installed inside the debris-blocking opening. The horizontal grid is composed of multiple sub-grid components to cover the shaft opening. A support beam is provided inside the shaft opening to support the sub-grid components. The length direction of the support beam is parallel to the length direction of the debris-blocking opening. The multiple sub-grid components are divided into a first sub-grid and a second sub-grid. The opposite ends of the first sub-grid are respectively installed on support steps opposite each other at the shaft opening. One end of the second sub-grid is installed on a support step on one side of the shaft opening, and its opposite end extends above the debris-blocking opening and is supported by the debris-blocking grid. This utility model can disassemble the horizontal grid into multiple sub-grids to reduce the weight of a single piece, and can also provide a central support beam to reduce the rigidity requirements of the sub-grids, thereby reducing thickness and weight, and facilitating manual handling.

The invention relates to the technical field of slope greening construction, in particular to stacking equipment, a slope vegetation bag stacking system and a using method. The stacking equipment comprises a base and a stacking mechanism, wherein a walking mechanism capable of reciprocating relative to the base is arranged on the base; the telescopic conveyor comprises at least two telescopic sections capable of relatively stretching out and drawing back, the first telescopic section is rotationally connected with the walking mechanism and can be relatively fixed, and an included angle is formed between the telescopic direction of the telescopic conveyor and the moving direction of the walking mechanism; the supporting trolley is rotationally connected with the first telescopic section and can be relatively fixed, the supporting trolley and the walking mechanism can be spaced, and the supporting trolley is used for supporting part of the weight of the telescopic conveyor; the rotation direction of the supporting trolley relative to the first telescopic section is parallel to the rotation direction of the first telescopic section relative to the walking mechanism. According to the stacking equipment, the overhanging length of the output end of the telescopic conveyor can be reduced, and the overturning probability of the base is reduced; the telescopic load of the telescopic conveyor can be reduced, and side slope stacking is facilitated.