5results about How to "Reduce impact stress" patented technology

The present application relates to shearing device technical field, specifically disclose a gantry hydraulic shearing device, including length before and after extending the material conveying groove, the gantry frame is arranged in the material conveying groove discharge end, the hydraulic drive is installed on the gantry frame, the shearing cutter is assembled on the gantry frame and is connected the hydraulic drive output shaft and moves up and down, the clamp plate assembly is assembled on the gantry frame and moves up and down, the pressure material elastic component is connected between the hydraulic drive output shaft and the clamp plate assembly;The lower end of the clamp plate assembly has the pressure material surface for contacting the metal material, the pressure material elastic component is used to apply elastic force to the clamp plate assembly, so that the clamp plate assembly moves down to the pressure material surface below the shearing surface of the shearing cutter;The hydraulic drive is used to drive the shearing cutter and the clamp plate assembly synchronous descent, so that the pressure material surface of the clamp plate assembly contacts the metal material prior to the shearing surface of the shearing cutter.The gantry hydraulic shearing device can prolong the service life of the shearing cutter, improve the shearing quality.

The application relates to the technical field of road engineering, in particular to a setting method of a highway super-high gentle section drainage system based on a longest water collection path, which comprises the following steps: field investigation; simplifying the maximum water collection path into a plane quadratic curve, taking a point where the maximum water collection path enters a water accumulation area as an original point O, taking the road center line direction of the O point as an X axis, and taking the vertical road center line direction as a Y axis to establish a plane coordinate system; determining the position of a starting point A point of the maximum water collection path; deriving a quadratic curve of the maximum water collection path according to the A point, the O point coordinates and the derivative of the maximum water collection path curve at the O point; and determining the setting angle of the water interception groove at different positions according to the longest water collection path to determine the number of water interception grooves. According to the application, the water interception groove position is determined according to the longest water collection path, the water interception groove angle is 90 DEG intersected with the maximum water collection path, water flow is collected to the maximum extent, water flow collection in the gentle section is blocked, and water accumulation is reduced.

The utility model relates to the technical field of clamps, in particular to a pneumatic and mechanical linkage multifunctional rapid clamping device which comprises a base, a driving mechanism is arranged on the upper surface of the base, the output end of the driving mechanism is connected with a clamping block making contact with a workpiece, and the clamping block is connected with the base in a sliding mode. The clamping block comprises a shell, and a plurality of independent contact units are arranged in the shell; each contact unit comprises a clamping head in sliding fit with the cavity of the shell, a guide rod fixed in the cavity, a first spring sleeving the guide rod, and a second spring connecting the clamping head and the inner wall of the cavity; the clamping head sleeves the guide rod in a sliding manner; when the clamping head makes contact with a workpiece, all the contact units are independently compressed and deformed to adapt to the contour of the workpiece, and the rigid contact mode of a traditional clamping device is thoroughly changed through the independent cavities and the sliding contact sets arranged on the end faces of the clamping blocks.

The invention relates to the technical field of direct-current power supply control, in particular to a direct-current capacitance calculation method of a diesel generating set under a pulse load and a diesel generating set system. Comprise pulse peak power, pulse period, pulse on / off time, system no-load direct current voltage, allowable minimum direct current voltage and response time of a diesel engine control unit ECU; according to the obtained parameters, equivalent discharge time needing to be provided by the energy storage capacitor is determined; and calculating the capacitance value of the energy storage capacitor according to an energy conservation relation, and connecting the calculated energy storage capacitor in parallel to a direct current bus of the generator set. In the invention, by establishing a quantitative calculation method of the direct current energy storage capacitor under the pulse load and combining a slow response control strategy of low-pass filtering of a voltage loop of the alternating current-direct current converter, the pulse transient power is borne by the capacitor, and the diesel engine stably intervenes according to self response characteristics, so that the voltage fluctuation of a direct current bus is effectively inhibited; and engine rotating speed impact and mechanical stress are reduced.

The present application relates to a kind of fish oil extraction equipment and its extraction process, belong to fish oil extraction technical field, by adopting the synergies of helical guide rail and elastic limiting part, multiple stirring parts are sequentially separated from limiting under the control of driving part and swing in vertical direction, form continuous wave type stirring track, reciprocating activity part and helical guide rail being set in the center of stirring barrel, cooperate with the synergies of elastic limiting part and stirring part, realize the effective stirring of high viscosity fish oil, both realize the uniform mixing and cyclic flow of material, shear force is dispersed into multi-section progressive action, avoid the mechanical damage of traditional high-strength concentrated shearing to protein-phospholipid complex colloid structure, while the buffer characteristics of elastic limiting part further reduce impact stress, solve the problem that the high viscosity of fish oil and its sensitive colloid structure in prior art make traditional high shear stirring easily lead to active ingredient loss and system stability reduction.