33results about How to "Quick impact" patented technology

The invention belongs to the technical field of power transmission lines, and discloses a design method for an important crossing of a power transmission line that can be quickly repaired. Erection of one-phase wire as a spare spare phase wire is usually run in parallel with the adjacent phase wire or grounded; if a phase wire of a certain circuit breaks, only the broken phase wire is removed to relieve the impact on the important facilities across; Change the jumper and replace the broken phase wire with the spare phase wire to quickly restore the power supply. After adopting the present invention, if an important spanning section of the transmission line is disconnected, the impact on important facilities can be quickly removed, the impact on the facility can be avoided, and the power supply can be quickly repaired and restored, which is convenient, fast and basically free of cost.

The invention discloses an automatic hydraulic shock source loop, device and system carried on a tunneling machine. An impact oil cylinder can rotate around a rotation type installing column, this characteristic is utilized for achieving two-freedom-degree action of the impact oil cylinder, by means of the ingenious design of the hydraulic loop, higher response speed and control precision of a high-frequency-response servo valve can be utilized for being combined with the oil supplementing effect of an energy storing device and design of a controller, oil can be supplied to a rodless cavity ofthe impact oil cylinder fast, and by means of the oil supplementing effect of a differential circuit, fast forward impacting of the impact oil cylinder is achieved. Automatic shock actuating and faststriking can be achieved, striking force can be adjusted, striking strength is uniform, and geology advanced prediction in the construction process of the tunneling machine is benefitted.

The invention relates to a hydraulic impactor regulated by a piston. The upper end of the shell of the hydraulic impactor regulated by the piston is threadedly connected to the upper conversion joint, and the lower end of the housing is provided with an anvil, and the lower end of the anvil is a lower conversion joint; The body is fastened in the shell, there is an upper spacer sleeve and an upper valve seat between the upper conversion joint and the cylinder body, the valve cover is installed in the upper valve seat, there are flow channels around the valve cover, the valve cover and the cylinder body form a valve chamber, The impact hammer extends into the valve chamber through the cylinder body, the bottom of the impact hammer contacts the casing, a low-pressure chamber is formed between the impact hammer and the cylinder body, the casing has a low-pressure hole, and the low-pressure hole connects the low-pressure chamber with the annular space; the impact hammer There is a cylinder at the upper end, and the first piston bottom plate is located in the cylinder; there is a valve cylinder at the upper end of the anvil, and the second piston bottom plate is located in the valve cylinder, and the second piston top plate is a free end. There is a piston groove at the bottom of the impact hammer, and the impact hammer is connected to the anvil. , the second piston top plate is located in the piston groove. The invention solves the problem of poor impact effect of the existing hydraulic impactor.

The invention discloses a square pipe cutting device. The square pipe cutting device includes a housing assembly, a cutting tool body and a knife driving device. The square tube in the containing component realizes cutting; the containing component includes a containing body, which is provided with a knife moving guide groove, and a knife cutting through groove is arranged at the bottom thereof, which is hollowed out with the knife moving guide groove for accommodating the square pipe to be cut. Pipe, the first clamping block and the second clamping block for supporting the square tube to be cut are respectively arranged on both sides of the cutter cutting through groove, which form a vertical V-shaped angle along the axial direction of the square tube cutting device. , the cutter head of the cutting tool body corresponds to a vertical V-shaped angle, so that when cutting the square tube, the tip of the cutter is aligned with the edge of the square tube to be cut. The square tube cutting device realized according to the invention can complete labor-saving and fast square tube cutting.

The invention relates to an HL type high-strain pile-trialing method hammering system, comprising from up to down: a lock disk type detacher, a hammer and a retractable guide frame, wherein a box is arranged outside the lock disk type detacher; a lock disk is arranged in the box; the lock disk is a flat square shell; a lock catch is arranged on an upper surface of the shell; two side outside the lock catch are respectively provided with parallel lock arms; two long side faces of the lock disk are respectively equipped with two extension rods; a spring is mounted on a lower portion of one of two short side faces; the spring is connected with an extension rod control rope and an extension rod lock; four corners of the upper surface of the lock disk are respectively provided with hoisting holes along a diagonal direction; the hammer is a hammer body; a vertical lock head is arranged on the top of the hammer body; a hoisting nose is arranged on the lower portion of the lock head near to the hammer body; the retractable guide frame is a vertical frame and is composed of a basic joint and an adjustment joint; a longitudinal section of the basic joint is trapezoid; the basic joint is provided with a top face and a bottom face; bevel edges on two sides are composed of a lower segment, a middle segment and an upper segment from down to up; the longitudinal section of the adjustment joint are two rectangles, so that a new high-strain pile-trialing method hammering system is formed.

The invention discloses an oscillation impact testing device. The oscillation impact testing device comprises a sensor, an oscilloscope, a frame foundation, a barrel seat, two barrel connecting hoops, two barrels, a guide tube, a vehicle, a launcher and a launcher seat. The frame foundation is fixed onto a test stand, the barrel seat and the launcher seat are fixed to the two ends of the frame foundation respectively and are coaxial. The two barrels are coaxially connected with the barrel seat and the launcher seat through the barrel connecting hoops. The other ends of the two barrels are fixed to the inner portion of the guide tube. The vehicle is installed inside the barrel connected with the launcher seat. A plurality of pressure sensors are evenly arranged on the lateral walls of the two barrels in the axial direction. The pressure sensors are connected with the oscilloscope. The launcher is installed inside the launcher seat. By means of the oscillation impact testing device, the oscillation impact state inside a propellant bed bore can be better simulated, the mechanical property in the propellant powder action process can be evaluated objectively and truly, the basic performance of different propellant powder dynamic mechanical strengths is obtained by comparing the broken state of powder particles before collision and the broken state of the powder particles after collision and a technological means is provided for studying high-strength propellant powder and improving the technical level of high-gun-pressure guns.