49results about How to "Apply stability" patented technology

The invention provides an installation and complex loading model testing platform for a novel deep sea mooring foundation. The testing platform comprises anchors, testing grooves, a loading fixed frame, a vertical power device, a connecting mechanism, a vertical power device pulling force sensor, a first displacement sensor, an inclinometer, a tension regulator, a pulling cable, a pulling cable guide pulley block, a pulling force direction regulating mechanism, a pulling cable tension measurement sensor, a second displacement sensor, a pulling cable circulating load regulator, a third displacement sensor and a fourth displacement sensor. The invention can realize the model testing research of the bearing capacity characteristics of the novel mooring foundation in deep sea complex static and dynamic loading environments, improves the efficiency of the model testing and the stability of results, and has great promotion and pushing functions on the research of the novel deepwater mooring foundations.

The present invention relates to a separator and a lithium-sulfur battery comprising same, the separator having at least one side of a porous substrate thereof coated with graphene oxide and boron nitride and thereby being capable of simultaneously solving problems caused by lithium polysulfides and lithium dendrites occurring in conventional lithium-sulfur batteries.

The invention discloses a fruit and vegetable preservation device based on a nanosecond pulse low-voltage electric field. The fruit and vegetable preservation device comprises a treatment chamber anda nanosecond pulse electric field generating device, wherein the treatment chamber comprises a closed cavity, a box body with an open top and an upper cover arranged at the open top of the box body, the upper cover contains a copper sheet protecting path, the box body matches with the upper cover by virtue of a positioning assembly, and an electromagnetic device, the copper sheet protecting path and a work indicating lamp form a safety protection device together; and the nanosecond pulse electric field generating device comprises a nanosecond pulse power with adjustable parameters and a multichannel dual electrode sealed in an insulating barrier, and the multichannel dual electrode is connected with an electrode outgoing post. The electric field generating device forms a nanosecond pulse electric field in the box body, and fruits and vegetables are put in the nanosecond pulse electric field for performing electric field treatment, thereby achieving an enzyme inactivating effect by changing the inherent electric fields of the fruits and vegetables, inhibiting the respiratory action of the fruits and vegetables and achieving a good cold sterilization effect. The fruit and vegetable preservation device based on the nanosecond pulse low-voltage electric field has a convenient operation method, is pollution-free and suitable for preserving various perishable fruits and vegetables and has very high application value.

The invention provides a tension and compression ring shear circumferential seepage tester and a system thereof, and relates to the technical field of mechanical test devices. The tension and compression ring shear circumferential seepage tester is connected with an upper shearing box through an axial piston rod, a torque force transmission shaft is connected with a lower shearing box, the axial piston rod is provided with an axial force sensor, the torque force transmission shaft is provided with a torque sensor, the upper shearing box is fixedly connected with a force transmission plate, and the force transmission plate can transmit counter force of applied torque to keep the stability of the upper shearing box. A circumferential seepage structure arranged in the invention can execute circumferential seepage test. The tension and compression ring shear circumferential seepage tester realizes independent and coupled application of the axial load and the torque, and guarantees the stability of a test device and the load applying stability in the test loading process. The tension and compression ring shear circumferential seepage system comprises a servo pump and the tension and compression ring shear circumferential seepage tester. The system has the advantages of accuracy in control, small error and good stability.

The invention relates to the field of disposable hygienic products, in particular to a forming process of an ice-cold type mask with blasting beads. The forming process solves the technical problem that an ice-cold type mask with the blasting beads in the prior art is low in production efficiency. The forming process comprises the following steps that firstly, a nose bridge strip is cut off afterbeing unwound, and the cut-off nose bridge strip is input and adheres to a strip-shaped non-woven fabric at intervals; secondly, an outer-layer non-woven fabric, a melt-blown non-woven fabric and an inner-layer non-woven fabric are unwound, blasting bead particles adhere to the inner-layer non-woven fabric at intervals, the strip-shaped non-woven fabric is clamped between the melt-blown non-wovenfabric and the inner-layer non-woven fabric, and therefore a mask base material is formed; thirdly, the middle of the mask base material is folded and then flattened; fourthly, the mask base materialis subjected to hot pressing, and a peripheral indentation on the peripheral side of the mask, a limiting indentation surrounding the nose bridge strip and a positioning indentation surrounding the blasting bead particles are formed; fifthly, an ear strip material is unwound, cut, adsorbed and conveyed and finally compounded on the mask base material; and sixthly, slitting and outputting are conducted.

The invention provides a temperature-controllable deep cooling laser shock peening system which comprises a clamp base, a liquid nitrogen automatic supplementary device, a liquid level monitor device, first supporting plates, a cover plate, a screw pressing device and a circumferential locating device. An automatic flow adjusting funnel, an electric liquid nitrogen pump, a liquid level monitor and a computer system are connected, it is guaranteed that the liquid nitrogen liquid level height is kept constant, and then the workpiece temperature is controllable; a screw pressing mechanism is used for tightening and locating a workpiece and a restraint layer; and the circumferential locating device achieves circumferential restraining on a screw through a clamping block and a check block. The clamping and locating process is fast and simple, the repeated locating precision is high, and locating is reliable; and the deep cooling laser shock peening experimental effects of being controllable in temperature and better in restraint effect are achieved.

A micro adhesive nozzle for applying adhesive on a printed circuit board is disclosed. The nozzle includes a nozzle tip portion with a protruding portion arranged at a periphery of the nozzle tip portion, an adhesive discharge opening portion formed within the periphery of the nozzle tip portion, and a gap provided between the discharge opening portion and the protruding portion.

The invention discloses a guide device of a compression type garbage transfer station. The device comprises a pressure head, a garbage compression box and a first telescopic cylinder, wherein the pressure head is positioned above the garbage compression box; and the top of the garbage compression box is provided with an opening allowing the pressing head to be pressed in. Supporting columns are arranged at the four corners of the garbage compression box correspondingly. A first rail is arranged on the inner side of each supporting column; a pressure head guide sliding block connected with thepressure head is slidably connected into the first rail; a first height detection sensor is arranged at the upper end of the inner side of each first rail; the lower end of the first telescopic cylinder is connected with the upper end of the pressure head; electric telescopic push rods parallel to the axis of the first telescopic cylinder are arranged at four corners of the lower end surface of the oil cylinder structure; and telescopic ends of the electric telescopic push rods point to the pressure head. Guiding is smooth, it is ensured that the acting force of the pressure head is stably applied to garbage blocks, the compression stability is improved, the compaction density of the garbage blocks is improved, and the garbage transportation cost is reduced.

The invention provides a main tower lower cross beam support pre-pressing device and a pre-pressing method thereof, and belongs to the technical field of civil engineering construction devices. The device specifically comprises a stand column, a cross beam, a tensioning mechanism, a transmission mechanism, a rotary driving mechanism and a bottom supporting frame. The stand column is arranged belowthe cross beam to support the cross beam; the tensioning mechanism is arranged below the cross beam; a mounting hole is arranged in the cross beam; the tensioning mechanism penetrates through the mounting hole and extends to an upper part of the cross beam; a top size of the tensioning mechanism is greater than an aperture of the mounting hole; and the tensioning mechanism is further connected with the transmission mechanism, the transmission mechanism is connected to the bottom supporting frame, the stand column penetrates through the bottom supporting frame, the rotary driving mechanism isconnected to the transmission mechanism, a vertically-downward pulling force is applied to the cross beam through the transmission mechanism and the tensioning mechanism, and a vertically-downward pre-pressing force is applied to the stand column through the cross beam. According to the main tower lower cross beam support pre-pressing device, stress balance of the two sides of the stand column canbe guaranteed, pressure borne by the stand column is ensured to be vertically downward, and a pre-pressing force applying process is simple.

The invention discloses a press-fit jig and a press-fit method for a printed circuit board. According to the embodiment of the invention, the press-fit jig for a printed circuit board comprises a bottom plate which is used for placing a printed circuit board; and a cover plate which is matched with the bottom plate and is used for covering the printed circuit board. The bottom plate is provided with a first press-fit column located on the bottom plate, and a first spring located on the first press-fit column. The cover plate is provided with a second press-fit column located on the cover plate, and a second spring located on the second press-fit column. The first spring and/or the second spring are/is deformed by locking the bottom plate and the cover plate. The deformed first spring and/or the deformed second spring provide press-fit force for the printed circuit board so as to press the printed circuit board. According to the press-fit jig and the press-fit method for the printed circuit board, spring press fit is adopted, the stress consistency is better, press fit is uniform, the air tightness after press fit is good, the precision is high, and the product yield is high.

The invention provides a tension-compression, ring shear and radial seepage tester and a tension-compression, ring shear and radial seepage test system and relates to the technical field of mechanical test devices. The tension-compression, ring shear and radial seepage tester is characterized in that an axial piston rod is connected with an upper shear box, a torque transmission shaft is connected with a lower shear box, an axial force transducer is arranged on the axial piston rod, a torque transducer is arranged on the torque transmission shaft, a force transmission plate is fixedly connected onto the upper shear box and can transmit counter-force of applied torque, and stability of the upper shear box is maintained. A radial seepage test can be realized by arrangement of a seepage structure. The tension-compression, ring shear and radial seepage tester has the advantages that independent and coupling application of axial load and torque is realized, and stability of the tester and load application stationarity in a test loading process are guaranteed. The tension-compression, ring shear and radial seepage test system comprises a servo pump and the tension-compression, ring shear and radial seepage tester, and is precise in control, small in error and good in stability.