35results about How to "Change the way of force" patented technology

The invention provides a three-dimensional mixed conductive adhesive used for lithium battery, and a battery containing the adhesive. The adhesive contains a carbon nanotube, a graphene and a polymerhaving a chemical bonding effect with the carbon nanotube and the graphene. The carbon nanotube and the graphene in the adhesive are mixed according to a certain proportion to form a three-dimensionalconductive network; polymer groups and groups on the graphene carbon nanotube are effectively combined to improve the intensity of the compound; and the compound is perfectly dispersed when the electrode slurry is prepared. During the charging-discharging process, the three-dimensional compound conductive adhesive is capable of better controlling the expansion and the shrinkage of the active material of the electrode plate, and effectively improves the cycling stability and the rate capability of high-capacity high-volume-change type electrode material, such as the silicon-based cathode material, the tin-based cathode material, and the high-volume-change type electrode material that can be expanded into the new battery system in the future.

The invention discloses a cylinder beam integrated hydraulic press relating to a hydraulic press. The invention solves the problems that the rigidity and the strength of the upper crossbeam of the traditional three-beam four-pillar hydraulic press are weakened by a working cylinder hole, the upper crossbeam and a lower crossbeam are easy to get loose from the threaded connection with pillars and the complete machine has big weight and high cost. In the scheme I, the inner wall of a shell is fixedly provided with a retainer; a guide sleeve with a seal is fixedly arranged in the retainer; a thrust plunger is arranged in the guide sleeve and makes movement up and down; the lower end of the thrust plunger is connected with a slider; an upper die is fixedly arranged on the bottom end surface of the groove of the slider; a fixing plate is horizontally and fixedly arranged in a stand; the fixing plate is provided with a worktable; the worktable is provided with a lower die; and the lower dieand the upper die correspond; the main difference between the scheme II and the scheme I lies in that the inner wall of the shell is fixedly provided with an annular check ring; the annular check ring and a pressure resistant elastic element are sleeved outside the thrust plunger; and the upper die is fixedly arranged on the slider of the lower end of the thrust plunger. The invention has the advantages of low height of the complete machine, light weight, big total pressure and low cost.

The invention relates to a trampling simply supported beam piezoelectric generating device which comprises an angle iron framework, two crossties, bolts, a rubber gasket and multiple groups of simply supported beam piezoelectric units, wherein the two crossties are fixedly arranged on the angle iron framework; the multi groups of simply supported beam piezoelectric units are arranged on the crossties in sequence in a simply supported mode through the bolts; the rubber gasket covers the multiple groups of simply supported beam piezoelectric units; each simply supported beam piezoelectric unit is composed of a beam and piezoelectric ceramic plates, the plurality of piezoelectric ceramic plate are stuck on the inner side of the beam; the piezoelectric material of the piezoelectric ceramic plates is lead-zirconate titanates (PZT-5A) material, the beam is a long rectangular slice and is made of alloy steel; leads are respectively led out from each electrode on the upper and lower surfaces of the piezoelectric ceramic plates so as to connect all the simply supported beam piezoelectric units in parallel. The device provided by the invention can be placed in crowded places or indoor corridors for collecting energy generated by walk trampling and covert the energy into electric energy; therefore the device can be applied to auxiliary lighting or emergency lighting.

The invention provides a special tooth PDC drill bit, belongs to rotary drilling drill bits for petroleum and geology, and particularly relates to a drill bit of a special tooth special structure. Thespecial tooth PDC drill bit comprises a drill bit body and a connector. The drill bit body is composed of multiple knife wings and a gage. PDC special teeth are further brazed on the knife wings, diamond layers are arranged on base bodies of the PDC special teeth, and the diamond layers are vertical to respective normal directions. The diamond layers are provided with front bulging ridges, rear bulging ridges and sharp corners. The special tooth PDC drill bit has the advantages that the diamond layers of the PDC special teeth are vertical to the respective normal directions, all the diamond layers can participate in cutting, the drill bit has higher grinding resistance, and the service life of the drill bit is prolonged. The force bearing mode of the diamond layers is changed, the axial impact resistance of the drill bit can be improved in multiples, and the possibility that the drill bit is damaged by bit bouncing and percussion drilling is reduced.

The invention discloses a wedge-type clutch. The clutch comprises a driving cam, a driven element, at least one centrifugal wedge, at least one reset device and a middle support, wherein the middle support is hinged with the driving cam; the middle support and the driven element are mutually spaced for a certain distance in the radial direction; a plurality of centrifugal wedges are sequentially arranged between the driving cam and the driven element around an axis of the middle support; each centrifugal wedge is respectively movably arranged on the middle support; the centrifugal wedges are driven by the driving cam to radially move to ensure that the centrifugal wedges are in contact with the driven element and torque is transmitted; and the reset devices are used for continuously applying an acting force on the centrifugal wedges to ensure that the centrifugal wedges and the driven element are kept in a non-contact state. The clutch disclosed by the invention is strong in load capability and good in impact resistance and can have excellent performances of both one-way / two-way clutches; and the cultch disclosed by the invention can be used for realizing the power transmission and separation functions between prime motors and working machines or between driving elements and driven elements in machines and can be used in the mechanical drive fields of automatic transmissions and the like.

The invention relates to a method of weakening the combined action of a bridge deck system participating in a main truss. The method comprises the steps that main truss rod pieces and cross beams are manufactured and assembled; the prestress is symmetrically applied to two ends of main truss chord members, so that the main truss chord members are compressed and deformed; bridge deck longitudinal beams are manufactured according to the distance of the shortened main truss; after the bridge deck longitudinal beams are mounted, the prestress which is applied to the two ends of the main truss chord members is removed; the main truss chord members recover the compressive deformation to drive the bridge deck cross beams to deform simultaneously; the deformation of the bridge deck cross beams is subjected to the restraint of the bridge deck longitudinal beams, the bridge deck cross beams produce the bending moments, and the directions of the bending moments are opposite to the directions of bending moments of the bridge deck cross beams, which are produced when the bridge deck system participates into the mutual stress of the main truss chord members; when the bridge deck system participates into the combined action of the main truss chord members, the produced internal force is offset by the internal force which is produced by the prestress in an earlier stage, the combined action of bridge deck system participating in the main truss is weakened, and the stress performance of the longitudinal beams and the cross beams is improved. Due to the adoption of the method, the cross sections of the bridge deck cross beams are reduced and simplified, the connection structures of the cross beams and the main truss chord members are simple, steel is saved, the used amount is small, and the later maintenance workload is little.

The invention provides a busbar fixing assembly in a high-voltage power distribution system. The high-voltage power distribution system includes three parallel busbars. The fixing assembly includes two end support rods and a middle support rod, the middle support rod is fixedly provided with a fixing base, and the three busbars are all fixedly connected with the fixing base; a circular fixed discis fixedly arranged on each end support rod, a connecting shaft is fixedly arranged in the middle of each fixed disc and connected with a rotating disc, torsion springs capable of driving the rotatingdiscs to rotate relative to the connecting shaft are arranged between the rotating discs and the connecting shaft, the busbars are all fixedly connected with the fixed discs and the rotating discs, and the rotating discs are located at the sides, closes to the busbar fixing base, of the fixed discs; the fixing base is located in the middle of the space between the two fixed discs, and the rotating discs are located in the middles of the spaces the fixed discs which are matched with the rotating discs and the fixing base; the connecting shaft is also fixedly connected with the fixing base. Thebusbar fixing assembly has the advantages of balanced stress borne by the busbars and the like.

The invention discloses a stacked geogrid enhanced composite soil roadbed. The stacked geogrid enhanced composite soil roadbed is composed of a geogrid playing an enhancement effect and soil playing a base material effect, the conventional filling roadbed single soil compression method is changed into a stacked geogrid enhanced composite soil technical method, and gravity action under the roadbed load condition is partially converted into a drawing force to the geogrid, thus the defects that the roadbed settles and deformation amount is high in the conventional technique can be effectively overcome. The invention also discloses a side slope protection structure of the composite soil roadbed, and the side slope protection structure is simple to construct and has water and soil conservation function and the like.

A recyclable screw-in type anchor rod-microorganism grouting reinforcement device comprises a bacterial liquid tank, a water tank, a cementing liquid tank and a screw-in type anchor rod. Materials in the bacteria liquid tank, the water tank and the cementing liquid tank are input into the screw-in anchor rod through a grouting pump and a pipeline; the screw-in type anchor rod is hollow inside and provided with a slurry outlet hole in the outer wall; after the screw-in type anchor rod is screwed into the slope body, materials are injected into the slope body from the slurry outlet holes. According to the recyclable screw-in type anchor rod-microorganism grouting reinforcement device, green and environment-friendly materials are adopted, the reinforcement mode is changed, and it is guaranteed that the grouting reinforcement effect is reliable.

The invention discloses a steel bar connection method based on AC and DC double-wire submerged arcs, which includes the following steps: A: prepare two steel bars with equal diameters, and open two rectangular grooves on the end faces of the steel bars, and the rectangular grooves are about The central axis of the steel bar is symmetrical; B: Adjust the two steel bars so that the rectangular grooves of the two steel bars face the same direction, and at the same time make the bottom surface of the rectangular groove on each steel bar vertically upward, and the two steel bars The rectangular grooves of the bars face the same direction, and then spot welding and positioning at the center points of the end faces of the two steel bars, so that the center points of the two steel bars are connected as a whole, and the distance between the end faces of the steel bars is 2 to 3mm; C: Preheat the two rectangular grooves, then use low-hydrogen type acid welding rods, use arc welding to fill the rectangular grooves of the two steel bars, and then arc in the opposite direction to the welding direction; D: When After the two steel bars are welded, remove the slag.

The invention discloses a tunnel coring device which comprises a hand-cranking device, a fixed pulley, a coring device body, a connecting rope and a blade set. The hand-cranking device and the fixed pulley are arranged at the first end of the coring device body. The blade set is arranged at the second end of the coring device body, the connecting rope penetrates through the coring device body, oneend of the connecting rope is wound around the fixed pulley, and the other end of the connecting rope is connected with the blade set. The hand-cranking device is used for rotating the fixed pulley,and the connecting rope is used for controlling the blade set to contract. The tunnel coring device aims to solve the problems that an existing tunnel coring device is single in function, low in coring speed and poor in coring effect.

The invention provides a special spray head structure applied to nanofiber melt-blowing preparation. The special spray head structure comprises a storage barrel, a discharge pipe, a capillary tube, aheating block, a vent pipe, first base bodies, airflow inlet pipes, flow guide pipes and second base bodies, wherein the discharge pipe is arranged at the bottom end of the storage barrel; the capillary tube is arranged at the bottom end of the discharge pipe; the heating block is arranged at the bottom end of the storage barrel; the vent pipe is arranged on the outer side of the capillary tube; the first base bodies are arranged on two sides of the outer wall of the vent pipe; the airflow inlet pipes are arranged on two sides of the first base bodies; the flow guide pipes are obliquely arranged on one sides of the bottom ends of the airflow inlet pipes; and the top surfaces of the second base bodies are assembled on the bottom surfaces of the first base bodies and are fixedly arranged. According to the special spray head structure disclosed by the invention, fibers are pulled twice, and the fibers are high in uniformity and high in quality; and moreover, the fiber bundle breakage phenomenon is effectively avoided in the pulling process, and the production stability of the device is high.

The invention discloses a vertical small-roller-diameter working roller ring rolling device and belongs to the technical field of ring piece rolling equipment. The vertical smaller-roller-diameter working roller ring rolling device solves the technical problems that the contact area of a working roller and a to-be-rolled ring piece is large, and the required equipment rolling force is large. The device comprises a roller frame, an upper roller system and a lower roller system. The roller frame comprises a main frame and an auxiliary frame. The main frame and the auxiliary frame are oppositelyarranged. Upper roller sliding blocks are correspondingly arranged in the main frame and the auxiliary frame. Lower roller sliding blocks are arranged below the upper roller sliding blocks in the mainframe. Lower roller fixing seats are arranged below the upper roller sliding blocks in the auxiliary frame. A hydraulic cylinder drives the upper roller sliding blocks to slide up and down along guide pillars. The upper roller system comprises an upper support roller, an upper transmission roller and an upper working roller, wherein the lower roller system and the upper roller system are symmetrically arranged with respect to the center line in the rolling roller seam, and the lower roller system is sleeved with the to-be-rolled ring piece. According to the vertical small-roller-diameter working roller ring rolling device, the small-roller-diameter working roller enables the local deformation area to be reduced, the rolling pressure and torque transmission of the working roller are guaranteed by the multi-roller train transmission system, and the service life of the roller is prolonged.

The invention discloses a balance shaft support and a balance suspension device, the balance suspension device comprises frames arranged at intervals in mirror symmetry, each frame is fixedly provided with a balance shaft support, and the frames are fixed with frame mounting positions on the balance shaft supports; each balance shaft support comprises a body, a frame installation position is arranged on the upper portion of the body, a through bearing hub installation position of a hole-shaped structure is arranged in the middle of the body in the vertical direction, and a guide arm mounting position and a thrust rod mounting position are further arranged on the body. The guide arm mounting position and the thrust rod mounting position are respectively arranged on the left side and the right side of the lower part of the body; according to the balance shaft support for the suspension, the structure of the upper half portion of an original balance shaft support is reserved, and only the structure of the portion below the balance shaft hole is designed in an improved mode; the traditional stress mode is changed, and the comfort performance of a no-load vehicle is greatly improved, and the tire adhesiveness is greatly improved.