107results about How to "Avoid structural instability" patented technology

The invention relates to the field of garbage treatment structures, in particular to a garbage lifting device which comprises a vertical guide column, a bracket, a jacking hydraulic cylinder, a guide wheel and an auxiliary discharge outlet. The bracket comprises a front unit and a rear unit, wherein the auxiliary discharge outlet is fixed to the top of the front unit, a supporting plate for holding a garbage can is arranged at the bottom of the rear unit, and a spring is arranged between the front unit and the rear unit to enable the front unit and the rear unit to relatively slide. The front unit and the rear unit relatively slide to enable the auxiliary discharge outlet and the supporting plate to clamp the garbage can. The jacking hydraulic cylinder is arranged on the vertical guide column and pushes the bracket to go up and down along the vertical guide column, and the guide wheel is further arranged between the bracket and the vertical guide column. Conveying is more stable through the overturning structure of an automatic dumping frame, and the garbage can is protected against seepage in the overturning process through elastic pressure; and the structural instability problem caused by sudden operation of transmission force is effectively prevented, the garbage spilling phenomenon caused by instable power is avoided, and work efficiency is improved.

The invention provides an air-suspending T-shaped rail slider, relating to a rail system and providing an air-suspending T-shaped rail slider capable of effectively overcoming unstable structure problem occurred at the time of air-suspending movement and reducing friction interference in the system. The slider comprises a top panel, a left panel and a right panel, wherein the left panel and the right panel are L-shaped plates; the lower part of the left panel is partially provided with at least one air hole for blowing a guide rail base surface; the lower part of the right panel is partially provided with at least one air hole for blowing the guide rail base surface; and at least one air hole for blowing the guide rail base surface is an one-way air hole or/and an two-way air hole.

The invention relates to equipment for dismantling a tunnel lining, in particular to self-propelled tunnel lining dismantling equipment and a using method. The self-propelled tunnel lining dismantlingequipment comprises a dismantling system, a walking system, a power system and a control system. The dismantling system is used for dividing the to-be-replaced lining of a tunnel into a plurality ofdismantling units separated from a tunnel main body; the walking system is used for conveying the dismantling system to an operation area corresponding to the to-be-replaced lining of the tunnel; thepower system is used for providing power for the dismantling system and the walking system to complete actions; and the control system sends action instructions to the dismantling system, the walkingsystem and the power system. Compared with the prior art, the self-propelled tunnel lining dismantling equipment and the using method have the beneficial effects that protection, cutting and dismantling are realized during tunnel lining replacement, disturbances of lining dismantling to surrounding rock and existing linings are reduced, frequent equipment replacement is not required during construction, the construction safety is guaranteed, the operation efficiency is improved, and the organization difficulty is reduced.

The invention discloses a rapid pressure-bearing forming device and method for a physical similar material test piece. The device comprises a strain gauge and a horizontally arranged lower flat plate.Four guide columns are arranged on an upper surface of the lower flat plate in a rectangular array, a hydraulic jack is arranged on the lower flat plate, the four guide columns are sleeved with a middle flat plate in a sliding mode, an upper flat plate is arranged at upper ends of the four guide columns, each guide column is sleeved with a compression spring located between the upper flat plate and the middle flat plate, a test piece forming die is placed on the middle flat plate, a lower surface of the upper flat plate is connected with a pressure sensor, and the pressure sensor is connectedwith a strain gauge through a lead. The forming pressure, the forming density and the forming time of a test piece can be accurately controlled, the forming conditions of the similar material test piece are accurately controlled by controlling the size of the similar material test piece, the density uniformity of the similar material test piece is improved, and the dispersion of the shape of thetest piece is reduced. Therefore, the die has the capability of manufacturing the high-density similar material test piece.

The invention relates to the technical field of cleaning equipment, in particular to bearing cleaning and drying equipment. The bearing cleaning and drying equipment comprises a rotating cylinder, two supporting seats, a material receiving bin, a waste residue storage tank, a cleaning fluid storage tank, a clear water circulating tank, a drying device, a spraying device and a power device. The rotating cylinder is located on the two supporting seats, and the material receiving bin is arranged on the right side of the rotating cylinder. The waste residue storage tank, the cleaning fluid storage tank and the clear water circulating tank are sequentially distributed below the rotating cylinder, and the drying device used for drying is located in the right side of the rotating cylinder. The water spraying device penetrates through the interior of the rotating cylinder. The power device comprises a large friction wheel, a small friction wheel, a speed reducer, a coupler and a motor, wherein the large friction wheel is fixed to the rotating cylinder, and the power device is used for driving the rotating cylinder to rotate. The bearing cleaning and drying equipment can carry out sundry removing, cleaning and drying on bearings, the problem of an equipment fault caused by waste scrap iron mingled in the cleaning fluid can be solved, continuous work can be achieved, a large amount of labor force can be saved, and the production cost can be reduced.

The invention discloses an OFDR (Optical Frequency Domain Reflectometer)-based deep horizontal displacement and underground water level integrated monitoring and early warning system and method. The system comprises a distributed optical fiber strain sensor, a self-heating optical fiber temperature sensor, an inclinometer pipe, a hollow steel pipe, an optical fiber data acquisition instrument, a solar cell panel, an optical fiber junction box, a transformer, a narrow linewidth tunable laser, a coupler, a cloud platform, a monitoring result processing and display system and an early warning system, wherein the distributed optical fiber strain sensor is positioned in a groove of the inclinometer pipe, the hollow steel pipe is fixed to the inner side of the inclinometer pipe, and the opticalfiber temperature sensor is wound and fixed to the surface of the hollow steel pipe; the optical fiber data acquisition instrument transmits data to the monitoring result processing and display systemthrough the cloud platform, and the system compares a peak value with a set early warning value and judges whether early warning is carried out or not; and the monitoring result processing and display system is connected with the early warning system, and an indicator lamp flickers during early warning. The system is high in precision and can achieve early warning in advance so as to prevent structural instability damage caused by too large deep horizontal displacement or too large underground water level changes.

The invention discloses a manufacturing method of an electrostatic suction cup. The manufacturing method comprises the step of manufacturing a body and a base of the electrostatic suction cup and the step of connecting the body and the base into a whole. According to the step of manufacturing the body of the electrostatic suction cup, a ceramic substrate embedded with a thin film electrode is formed, the upper surface of the ceramic substrate is imaged, a protection layer resistant to plasma erosion is deposited on the surface of the ceramic substrate, and the body of the electrostatic suction cup is formed. According to the manufacturing method, the plasma erosion resisting performance and the structural stability of the electrostatic suction cup can be effectively improved, and the service life of the electrostatic suction cup can be effectively prolonged.

The invention relates to a preparation method of an oxide porous material. According to the technical scheme, the method comprises the steps that an oxide precursor salt is dissolved in organic solvent according to the concentration ranging from 5 mol/L to 10 mol/L, stirring is conducted, and a solution I is obtained; a binder is added into the solution I according to the mass ratio of the oxide precursor salt to the binder of 1 to 0.01-0.1, stirring is conducted, and a solution II is obtained; a template agent is added into the solution II according to the mass ratio of the oxide precursor salt to the template agent of 1 to 0.1-0.35, stirring is conducted, and a solution III is obtained; liquid nitrogen freezing treatment is conducted on the solution III, drying is conducted in a vacuum freezing dryer, and a dried product is obtained; the product is put in a tube furnace, the temperature rapidly rises to 300-800 DEG C at the speed of 4-5 DEG C/min in an argon atmosphere or air atmosphere, heat preservation is conducted for 4-12 h, natural cooling is conducted along with the furnace, the template agent is removed, and the oxide porous material is obtained. The preparation method of the oxide porous material is convenient to operate and suitable for industrial production, and the hole size, the porosity and the wall thickness of the product can be regulated in a larger range.

The invention relates to an intelligent filtering electronic control communication wind-resistant advertising board. The intelligent filtering electronic control communication wind-resistant advertising board comprises an advertising board body (1), at least one baffle (2), a wind speed detecting sensor (5), a vibration detecting sensor (8), a control module (3), a power supply (4), a remote communication module (9), two filtering circuits (10) and at least one rotating motor (6), wherein the power supply (4), the remote communication module (9), the two filtering circuits (10) and the at least one rotating motor (6) are connected with the control module (3). The surface of the advertising board body (1) is provided with at least one through hole (7). One inner side edge of each through hole (7) is movably connected with the corresponding side edge of the corresponding baffle (2) through the corresponding rotating motor (6). When each baffle (2) is located in the corresponding through hole (7), the face where the front side of the baffle (2) is located is flush with the face where the front side of the advertising board body (1) is located. The intelligent filtering electronic control communication wind-resistant advertising board can relieve impact of environment airflow on the advertising board body (1), and the service life of the advertising board body (1) is effectively guaranteed.

The invention discloses a five-axis 3D printer. The five-axis 3D printer comprises a connecting frame body, a printing body, a printing base and a driving motor. The printing body and the printing base are both connected with the connecting fame body and connected with corresponding driving motors. The connecting frame body comprises an upper frame body part and a lower frame body part. The printing body is connected to the upper frame body part, and the printing base is connected to the lower frame body part. The upper frame body part and the lower frame body part are connected through three stand columns. The printing body is connected with the three stand columns through connecting rods correspondingly and can move up and down relative to the stand columns. A horizontal rotating mechanism is further connected to the printing body. By adoption of the five-axis 3D printer, five-axis printing is achieved, and the problems that existing printing equipment is low in printing efficiency and high in time and material consumption when used for printing models of complex structures are solved; and the five-axis 3D printer is simple in structure, convenient to mount and use and high in printing flexibility, the printing efficiency of the 3D printer is greatly improved, and the printing cost is reduced.

The invention discloses a prefabricated UHPC slope anchor plate device and a mounting method thereof. The anchor plate device is fixed to an anchor cable penetrating through a slope in a matched modeand is used for assisting in fixing the slope; the device comprises N anchor plates which are sequentially arranged in an overlapped mode, where N is larger than 1; first mounting through holes are formed in the centers of the N anchor plates; the centers of the first mounting through holes in the N anchor plates are located on the same virtual axis; the anchor plate located on the lowermost layeris used for being attached to the surface of the slope; the tail end of the anchor cable sequentially penetrates through the first mounting through holes in the N anchor plates and is fixedly connected with the anchor plate located on the uppermost layer through an anchor pie; the N anchor plates are restrained and fixed to the slope; the N anchor plates are gradually decreased in area of sectionin sequence along the direction away from the slope; and the perpendicular projection of the anchor plate on the uppermost layer on the slope is within the range of the perpendicular projection of the anchor plates on the lower layers on the slope. According to the scheme, mounting is efficient, manpower is saved, implementation is flexible, and the prestress applying procedure can be conducted immediately after installation is completed.

The invention discloses a three-dimensional recycled paper pulp molded product material which is characterized by being prepared from the following components in parts by weight: 60-90 parts of regenerated plant paper pulp (based on dry fibers), 5-10 parts of acrylic emulsion (with the solid content of 50%), 0.1-0.5 parts of a soap deinking agent, 0.01-0.03 parts of a volatile agent, 2-4 parts ofrosin size, 0.1-1 part of a dispersing agent, 0.1-0.3 parts of pigment, 0.5-1 part of waterborne ceramic coating and 10-20 parts of water. The invention further discloses a preparation method of the three-dimensional recycled paper pulp molded product. The formula and the preparation method of the material are matched with each other. The preparation process is simplified, and the comprehensive performance of the material and the product is greatly improved. Ink and adhesive tape plastic doped in paper pulp can be removed, and later coloring of paper and plastic is facilitated. The situation that the structure of the paper and plastic is unstable due to the fact that broken paper pulp of the plastic is separated is avoided. The surface of the paper and plastic is sprayed with waterborne ceramic coating after the paper and plastic are manufactured, a paper and plastic product is not prone to deformation and damage, and the service life of the paper and plastic product is prolonged.

The invention belongs to the technical field of computer vision and in particular relates to a human face three-dimensional reconstruction system and an application method thereof. The system comprises a tank body and a three-dimensional reconstruction computer, wherein a guide rod is vertically fixed on the bottom surface of the inner side of the tank body; a first linear motor is mounted on theguide rod; an arc-shaped guide track is horizontally arranged on one side of the first linear motor; a second linear motor is mounted in the arc-shaped guide track; an arc-shaped rod is horizontally arranged on a second linear motor; a plurality of cameras are uniformly distributed on the arc-shaped rod; signal output ends of the cameras are connected with the three-dimensional reconstruction computer through data wires. The human face three-dimensional reconstruction system has the beneficial effects that a photo taking time is shortened, and a good face reconstruction effect is achieved; a human face at different angles can be imaged by the plurality of the cameras for multiple times, a great number of cameras which are arranged around a human face to take images of the whole human faceat one time are replaced, and the excessive cost is reduced; due to adoption of a three-dimensional model, real and meticulous images can be taken; due to adoption of the three-dimensional reconstruction computer, automatic imaging, data transmission and processing can be achieved, the rapid and convenient operation is achieved, and the working efficiency can be improved.

The invention belongs to the field of coke oven maintenance, and in particular relates to a method for replacing bottom bricks of a coke oven carbonization chamber. The method comprises the followingsteps: setting a carbonization chamber adjacent to a coke oven carbonization chamber to be maintained as a buffer furnace, wherein the buffer furnace is used for heat preservation of the coke oven carbonization chamber to be maintained; controlling coke oven machine side standard temperature not lower than 1200DEG C and coke oven machine coke side standard temperature not lower than 1250 DEG C; removing old bricks from the coke oven carbonization chamber to be maintained from the machine side first then the coke side; cleaning the bottom of the coke oven carbonization chamber to be maintainedwith the old bricks removed; paving the coke oven carbonization chamber to be maintained with the bottom cleaned with new bricks, banking up, heating, performing heat preservation for 2 to 3 hours, and finally loading coal to complete the replacement of the bottom bricks of the coke oven carbonization chamber. According to the invention, as the buffer furnace is arranged, and banking up and heating of the furnace are controlled, so that the coke oven machine side standard temperature is controlled not lower than 1200DEG C, and the coke oven machine coke side standard temperature is controllednot lower than 1250 DEG C. When in replacing of the bottom bricks of the coke oven carbonization chamber, the temperature in the carbonization chamber does not obviously drop, and the bottom bricks ofthe coke oven carbonization chamber can be replaced without stopping production of the whole coke oven.

The invention discloses a nano porous oxide electrode material for a lithium ion battery. The nano porous oxide electrode material comprises a C-frame reinforced nano porous SnO2 composite material. The preparation method of the nano porous oxide electrode material specifically comprises the following steps: (1) mixing ethanediol, alcohol and methanol, and adding stannous salt to prepare a stannous salt precursor solution; (2) adding oxalic acid to the stannous salt precursor solution, and stirring and mixing uniformly to obtain a stannous oxalate precursor; (3) calcining the stannous oxalate precursor in air to obtain a nano porous SnO2 material;(4) mixing the nano porous SnO2 material with a glucose solution, and reacting for 3-6 hours under 45-85 DEG C water bath conditions to obtain a C-frame reinforced nano porous SnO2 precursor; (5) calcining the C-frame reinforced nano porous SnO2 precursor under a protective atmosphere to obtain the C-frame reinforced nano porous SnO2 composite material. The prepared nano porous oxide electrode material is applied to power lithium ion batteries, and nano porous oxide and a composite material thereof for energy-storage lithium ion batteries. The nano porous oxide electrode material has the characteristics of high specific capacity, good cyclic stability and excellent rate capability.