42results about How to "Reduced Strength Needs" patented technology

The invention discloses a suspension type hydraulic profiling flower and fruit thinning machine and a usage method thereof. According to the flower and fruit thinning machine, a moving frame is arranged on a suspending frame through a guide rail, a pushing hydraulic cylinder is arranged on the suspending frame and is connected with the moving frame, a profiling hydraulic cylinder is arranged on the moving frame and is connected with a flower and fruit thinning mechanism, the flower and fruit thinning mechanism is connected with the moving frame through a rotating shaft, a detection rod assembly is arranged on one side of the flower and fruit thinning mechanism, the pushing hydraulic cylinder, the profiling hydraulic cylinder and the flower and fruit thinning mechanism are connected with a hydraulic control device through oil pipes respectively, and the detection rod assembly is electrically connected with the hydraulic control device. The usage method of the flower and fruit thinning machine comprises that the distance between a target fruit tree and a flower and fruit thinning adhesive tape group is adjusted through the pushing hydraulic cylinder, an included angle formed by the flower and fruit thinning mechanism and a crown of the target fruit tree is adjusted through the profiling hydraulic cylinder, and then the flower and fruit thinning operation is conducted. The profiling flower and fruit thinning operation can be conducted for fruit trees through suspending connection of the flower and fruit thinning machine and a tractor, the mechanical degree is high, and the working efficiency is high.

The invention discloses a cross laminated timber (CLT) decorating plate and a connecting device thereof, and belongs to the field of building materials. The CLT decorating plate comprises a first decorating layer, a buffer layer, a CLT layer and a second decorating layer, wherein the first decorating layer, the buffer layer, the CLT layer and the second decorating layer are sequentially arranged from top to bottom, and a non-Newtonian fluid is arranged in the buffer layer. The invention further provides a connecting device. The connecting device comprises a supporting body and connecting blocks arranged on the supporting body, the supporting body is of a cuboid structure, the cross section of the supporting body is in a square shape, and the side length of the square-shaped cross section is the same as the thickness of the decorating plate; and the connecting blocks are matched with connecting grooves. According to the CLT decorating plate, the decorative effect can be improved, when the CLT decorating plate is impacted, the impact force can be dispersed to the whole CLP plate, and the uniform distribution damage of the CLT plate caused by single-point stress is avoided. Accordingto the connecting device, the connecting stress of the CLT plate can be partly transferred to the connecting device, and the intensity requirement on the CLT plate is reduced depending on the structure intensity of the connecting device.

The invention relates to the technical field of foundation pit construction, in particular to comprehensive prevention and control of a foundation pit construction environment, and discloses an intelligent two-way traction dust falling curtain net system for large-span foundation pit construction. The system comprises a plurality of groups of supporting structures; each supporting structure comprises a local side supporting unit and an opposite side supporting unit; a direction pulling cable is arranged between the local side supporting unit and the opposite side supporting unit; a protective curtain is arranged on the direction pulling cable; the protection system further comprises a two-way traction mechanism; the two-way traction mechanism comprises a driving traction cable connected and matched with the protection curtain; and the driving traction cable pulls the protective curtain to the middle of a foundation pit or the edge of the foundation pit at the same time. A two-way traction structure is adopted, so that curtain net protection of a large-span foundation pit can be achieved, the requirement for the strength of the protective curtain is lowered, the efficiency of curtain net protection operation is further improved, curtain net protection is opened and closed through automatic and intelligent operation, and treatment of the construction environment at the foundation pit is greatly facilitated.

The invention discloses a double-liner parallel compression air-suction plastic forming machine. The double-liner parallel compression air-suction plastic forming machine comprises a first feeding andcentering preheating integrated device, a second feeding and centering preheating integrated device, a first main heating device, a second main heating device, a first forming machine, a second forming machine, a feeding device, an edge cutting machine, a first punching machine and a second punching machine which are arranged in sequence, wherein the first punching machine and the second punchingmachine are arranged side by side, a conveying chain is sequentially arranged on the first feeding and centering preheating integrated device, the second feeding and centering preheating integrated device, the first main heating device, the second main heating device, the first forming machine, the second forming machine and the feeding device, the feeding device is used for grabbing products formed by the first forming machine and / or the second forming machine to the edge cutting machine, the feeding device is used for grabbing the products on the edge cutting machine to the first punching machine and / or the second punching machine, and the feeding device is used for grabbing the products passing through the first punching machine and / or the second punching machine. The double-liner parallel compression air-suction plastic forming machine can simultaneously process two products with different processing parameters on one production line.

The invention discloses a suspension type electric profiling flower and fruit thinning machine and a usage method thereof. According to the flower and fruit thinning machine, a moving frame is arranged on a suspending frame through a guide rail assembly, a pushing mechanism is arranged on the suspending frame and is connected with the moving frame, a profiling mechanism is arranged on the moving frame and is connected with a flower and fruit thinning mechanism, the flower and fruit thinning mechanism is connected with the moving frame through a rotating shaft, a detection rod assembly is arranged on one side of the flower and fruit thinning mechanism, and the pushing mechanism, the profiling mechanism, the flower and fruit thinning mechanism and the detection rod assembly are electrically connected with an electric profiling control device respectively. The usage method of the flower and fruit thinning machine comprises that the distance between a target fruit tree and a flower and fruit thinning adhesive tape group is adjusted through the pushing mechanism, an included angle formed by the flower and fruit thinning mechanism and a crown of the target fruit tree is adjusted through the profiling mechanism, and then the flower and fruit thinning operation is conducted. The profiling flower and fruit thinning operation can be conducted for fruit trees through suspending connection of the flower and fruit thinning machine and a tractor, the mechanical degree is high, and the working efficiency is high.

The present invention provides an externally driven marine propulsion system, comprising a main engine shaft part enclosed inside a hull, and a propeller part installed at the bottom of the hull and outside the hull, wherein the main engine shaft part comprises an engine; a rotating main shaft is fixed on the engine rotating shaft, and a driving gear is arranged on the rotating main shaft; the propeller part is provided with an annular pipe housing enclosing the propeller; an opening is arranged in the pipe housing; a support seat is arranged at the opening for fixing the driving gear; a propeller pipe bearing is fixed on the inner ring of the pipe housing; the inner ring of the propeller pipe bearing is provided with a propeller pipe; the inner ring of the propeller pipe is uniformly fixedly provided with a plurality of propeller blades; and the outer ring of the propeller pipe is fixedly provided with an outer gear of the propeller pipe; and the outer gear of the propeller pipe is meshed with the driving gear. The propulsion system provided by the invention has excellent hydrodynamic performance and greatly improves flexibility.