47results about How to "Guarantee applicability" patented technology

The invention discloses an automatic adjusting type fluent strip goods shelf, and particularly relates to the technical field of fluent strips. The automatic adjusting type fluent strip goods shelf comprises six frame transverse strips, wherein sealing blocks are arranged at the left ends and the right ends of the corresponding two frame transverse strips respectively, supporting rods are slidably connected to the upper surfaces of the sealing blocks, the top ends of the supporting rods are fixedly connected with frame vertical rods, the top ends of the frame vertical rods are fixedly connected with connecting blocks, the right side face of the left frame vertical rod is fixedly connected with a mounting shell, and two fluency strip frames are slidably connected into the mounting shell. By arranging an air pressure device, a fluency strip frame, an elastic device and a pushing device, compared with the prior art, the situation that small or large goods fall or topple during transportation is reduced, the stability of the fluency strip goods shelf during goods transportation is further guaranteed, and when the fluency strip goods shelf is used, the condition that the goods fall off to be damaged or lost is not prone to occurring, and therefore the applicability of the fluency strip goods shelf is guaranteed.

The invention discloses a method for predicting and predicting the deformation of expansive surrounding rock in a long-distance tunnel in advance, in particular to the method for discriminating expansive rock mass and predicting and predicting the deformation of expansive surrounding rock based on advanced pilot tunnels and intelligent feedback technology. During the construction period, the stratum in front of the face of the tunnel is discriminated against the expansibility and degree of expansion of the rock mass, and then the composite expansion viscoelastic-plastic model is used to conduct intelligent feedback analysis according to the actual deformation of the surrounding rock to obtain the surrounding rock that meets the site conditions. Mechanical parameters, realize the quantitative prediction of expansive surrounding rock, quantitatively predict the deformation law and magnitude of surrounding rock, and provide a basis for the design optimization and construction plan demonstration of expansive surrounding rock support.

Disclosed is a tunnel side wall support design method based on a weak plane shear support theory. The tunnel side wall support design method comprises the following steps: building a force balance mechanical model for a slip failure of a rock mass around a half coal and rock tunnel along a certain weak plane α under the action of an external force; judging a critical condition at which a shear failure occurs on surrounding rocks on a half coal and rock tunnel side wall; determining that the shear strength on an inner side of the tunnel in a direction of 45° is maximum; building a support mechanical model for the half coal and rock tunnel side wall based on the shear strength principle that the rock mass needs to be pressed against the largest shearing weak plane on the largest shearing block after being reinforced and supported by anchor rods; and providing a calculation formula for the number n of the anchor rods on the weak planes on the tunnel side and a length li of the i-th anchor rod in order to design the tunnel side wall support. By means of the method, support materials are reduced, the support cost is reduced, and a beneficial reference is provided for the scientific performance and applicability of support parameters.

The invention discloses an on-line dynamic balance adjustment system based on a temperature-controlled shape memory alloy and a control method thereof. The system comprises a balance head body. The balance head body comprises a shell. A rotating shaft passes through a through hole in the center of the shell to be fixedly connected with the shell. Four mass blocks are arranged around the through hole in the shell. Each mass block sleeves on an arc-shaped slide bar through an arc-shaped channel arranged on the mass block. Each arc-shaped slide bar is circumferentially distributed around the through hole. The two ends of each arc-shaped slide bar are fixed on the bracket in the shell. The arc-shaped slide bar arranged between the two ends of each mass block and the bracket is sleeved with a spring-shaped shape memory alloy. The spring-shaped shape memory alloy is electrically connected with the rotor part of a conductive slip ring, and the stator part of the conductive slip ring is electrically connected with a power supply device. The bearing support of the rotating shaft is provided with a vibration sensor used for measuring the imbalance amount in all directions during rotation ofthe rotating shaft. The dynamic balance can be realized through the current change, the principle is simple and miniaturization is easy and the system is suitable for high-precision rotor dynamic balance.

The invention discloses a CNT:SNC:PEDOT ternary water-based conductive ink and a preparation method thereof. The method comprises: adding carbon nanotubes into the sulfated nanocellulose aqueous dispersion, dispersing evenly to obtain a CNT:SNC dispersion; adding EDOT monomer to the CNT:SNC dispersion, and stirring evenly to obtain a mixed solution; Ammonium persulfate and ferric chloride are added to the mixed solution, and polymerization reaction is carried out under an inert atmosphere to obtain the CNT:SNC:PEDOT ternary water-based conductive ink. The CNT:SNC:PEDOT ternary conductive ink has the advantages of water-based environmental protection, good stability, good adhesion, no heating and curing, and strong versatility. At the same time, the advantages of stable dispersion, high conductivity, excellent printing adaptability and coating mechanical stability make the conductive ink in the present invention expected to be applied to printing various flexible electronic devices.