37results about How to "Mentioned stability" patented technology

The invention discloses a small ball head tool single-turntable polishing machining device and tool setting method and relates to a small ball head tool single-turntable polishing machining device, centering adjustment and tool setting method for a tool relative to a turntable and a tool setting method for the tool relative to a workpiece. The problems that high-precision tool setting is difficult for machining a small-sized part through a machine tool in the prior art, the tool setting time is very long to adjust the position of a polishing tool head through a mechanical method and the tool setting efficiency is low are solved. The small ball head tool single-turntable polishing machining device comprises a horizontal table, a workpiece spindle, a first charge coupled device (CCD) camera, a small ball head polishing tool, a polishing tool spindle, a spindle clamping member, a bevel angle fixing base, a centering adjustment displacement table, the turntable, a connecting plate, a V-direction pin roller guiding rail, a U-direction pin roller guiding rail, a U-direction adjusting micrometer head, a V-direction adjusting micrometer head, a second CCD camera and two enlarging lenses. The small ball head tool single-turntable polishing machining device is used for setting the tool of the machine tool for the small-sized part.

The invention relates to a subgrade pile-plank type widening structure and a construction method thereof. A post-cast lapped segment is arranged between an old road roadbed and a late-connected roadbed, the lower portion of the post-cast lapped segment is provided with a cushion layer, a guiding hole recharge body is arranged under the cushion layer, the end portion of the guiding hole recharge body is provided with a steel reinforcement cage, and the lower end of the guiding hole recharge body is provided with a high pressure jet grouting pile; a pre-stress tube pile is arranged under the pavement of a late-connected segment, a slurry solid is arranged surrounding the pre-stress tube pile, the bottom of the pre-stress tube pile is provided with a prefabricated extension pile end, and high pressure grouting is formed surrounding the prefabricated extension pile end; and an original protection slope is excavated to form a construction platform, cellular concrete is used to realize multistep casting after construction of the construction platform is completed, casing soil is arranged on the cellular concrete, and greening vegetation is arranged on the casing soil. The structure and the construction method can guarantee the construction progress and the construction quality of the subgrade pile-plank type widening structure, guarantee the economy, the safety, the simplified construction process and land resource saving of the construction, and have good economic and technical benefits.

The invention provides an elevator door sheet structure matched with a sill during use. The elevator door sheet structure comprises a door sheet and the sill matched with the door sheet during use, wherein the door sheet comprises a door sheet body, reinforcing ribs, a left bent portion, a right bent portion, an upper bent portion and a lower bent portion; the reinforcing ribs are located on the inner side of the door sheet body; the left bent portion, the right bent portion, the upper bent portion, the lower bent portion and the door sheet body are formed integrally; the left bent portion comprises a first left bent edge and a second left bent edge; the right bent portion comprises a first right bent edge and a second right bent edge; the upper bent portion comprises a first upper bent edge and a second upper bent edge; and the lower bent portion comprises a first upper bent edge and a second lower hooked edge. The elevator door sheet structure has the benefits as follows: the production operation is simple, the weight is light, the operational stability is better, and the overall security is higher.

The invention provides a selective hydrogenation method for pyrolysis gasoline. A single-stage adiabatic fixed-bed reactor is adopted, and the reactor is provided with a Pd-Mo-based hydrogenation catalyst. The hydrogenation process conditions are as follows: reaction temperature 30-120 DEG C, reaction pressure 2-6 MPa, airspeed 0.5-4h-1, hydrogen-to-oil volume ratio (100-600):1. One part of the hydrogenation product is used as the inner cycle of a one-stage hydrogenation reaction, and the other part is sent to a second-stage hydrogenation reactor for hydrorefining. The catalyst having a specific crystal form prepared by using a nickel-containing alumina carrier in the invention can greatly improve the dispersion and utilization rate of active metals, and the addition of selected auxiliaryactive components which are added plays a synergistic role to improve the hydrogenation activity and stability of the catalyst.

The invention provides a bonsai of trees and rocks as well as manufacturing and cultivation methods of the bonsai of trees and rocks. The bonsai is characterized in that a rock gap is formed through splicing a long-sheet rock and a short-sheet rock, or a rock groove is formed in the side face of long-sheet rock by adopting a cutting manner of a chiseling manner and is used as a growth gap of a root system of a bonsai tree; culture soil fills the gap; the technical difficulty that the bonsai tree cannot be planted on hard rocks without holes all the time is effectively solved; the culture soil fills the rock gap or the rock groove and a pot body, and a cement gum layer is formed on the outer side of the rock gap or the rock groove; the cement gum layer can be used for protecting the soil and also has very good water permeability and air permeability performances and water accumulation performance; and furthermore, moss plants are laid and planted on the outer surface of the cement gum layer and the outer surface of the culture soil in the pot body respectively, so that the water loss and soil erosion problem caused by the fact that the bonsai cannot resist drought and is watered is effectively solved and the survival rate of the bonsai tree is extremely improved.

The invention provides a solid oxide fuel battery, comprising a cathode layer, an electrolyte layer, an inner anode layer and an outer anode layer, wherein the electrolyte layer is compounded on the cathode layer; the inner anode layer is compounded on the electrolyte layer; the outer anode layer is compounded on the inner anode layer; and the oxygen ion conductor material content of the inner anode layer is higher than that of the outer anode layer. The internal strength of the electrode is lower than the interface bonding strength of electrodes and electrolyte, and the outer anode layer generates cracks preferentially under the action of stress and releases stress, so that the effects of stress buffering and protecting interface bonding of the electrodes and the electrolyte are achieved. The electrode is of a three-dimensional porous structure, and the influence of the cracks in the electrode on the performance of the battery is obviously weaker than that of interface cracks, so that the stability of the battery is improved. In addition, the inner anode layer and the outer anode layer provided by the invention can be sintered together, so that the preparation process is simpler.

The invention relates to the technical field of LED street lamps, in particular to an LED street lamp convenient to mount. The LED street lamp comprises a support tube and an LED street lamp body. A fixing pole is connected with the outer side of the upper end of the support tube, a rotary drum is arranged at an end of the fixing pole via a shaft, slide rails are arranged in the middles of the side walls of the support tube, a support pole is connected with the inner side of the LED street lamp body and is penetratingly inserted in the slide rails, and the rotary drum is connected with the upper end of the outer side of the support pole in a contact manner. The LED street lamp has the advantages that transmission can be carried out by screws at the bottom of the LED street lamp, accordingly, operators do not need to carry out climbing operation, and potential safety hazards can be reduced to a great extent; the stability and the toughness of the LED street lamp during mounting can be greatly improved by elastic support structures, and the service life of the LED street lamp can be prolonged; the LED street lamp is easy to operate and convenient to use, the mounting convenience degree of the LED street lamp can be upgraded to a great extent, and maintenance and repair in late periods, popularization and utilization can be facilitated.

The invention discloses toltrazuril inclusion compound lyophilized powder. The toltrazuril inclusion compound lyophilized powder is obtained by adopting sulfobutyl ether-beta-cyclodextrin to perform inclusion on toltrazuril and then carrying out a lyophilization process. A preparation method of the toltrazuril inclusion compound lyophilized powder concretely comprises the following steps: dissolving the toltrazuril by an organic solvent to obtain an organic solution of the toltrazuril; adding the organic solution of the toltrazuril into an aqueous solution of the sulfobutyl ether-beta-cyclodextrin, and magnetically stirring for carrying out a reaction; carrying out rotary evaporation on the materials obtained after the reaction so as to remove the organic solvent, then filtering by using amicrofiltration membrane and drying to obtain a toltrazuril inclusion compound; carrying out the lyophilization process to obtain the toltrazuril inclusion compound lyophilized powder. According to the preparation method, the sulfobutyl ether-beta-cyclodextrin is adopted to perform inclusion on the toltrazuril, so that the solubility of the indissolvable drug-the toltrazuril is improved; by adopting the lyophilization process, the stability and bioavailability of the toltrazuril are improved; the toltrazuril inclusion compound lyophilized powder enriches the preparations of antiparasitic drugs.

The invention provides a rotary adjusting type sewage pipe inner wall cleaning device. The device comprises two rotating rings arranged side by side front and back and a driving part; the driving partcan drive the two rotating rings to synchronously and oppositely rotate; a plurality of groups of cleaning parts are distributed along the circumferential direction of the rotating ring; each group of cleaning parts comprises a first C-shaped arm, a second C-shaped arm, an elastic plate and two connecting blocks; one end of the first C-shaped arm is rotationally connected with the rotating ring close to the front side; one end of the second C-shaped arm is rotationally connected with the rotating ring close to the rear side; the first C-shaped arm and the second C-shaped arm are rotationallyconnected; the two ends of the elastic plate are connected with the other end of the first C-shaped arm and the other end of the second C-shaped arm through connecting blocks respectively; the elasticplate is an arc-shaped elastic part; and a cleaning brush is fixedly arranged on an arc-shaped convex surface of the elastic plate. The device can be automatically adjusted according to sewage pipeswith different inner diameters and can be attached to the inner walls of the sewage pipes in time, and troubles caused by replacement of cleaning heads can be avoided.

The invention relates to a subgrade pile-plank type widening structure and a construction method thereof. A post-cast lapped segment is arranged between an old road roadbed and a late-connected roadbed, the lower portion of the post-cast lapped segment is provided with a cushion layer, a guiding hole recharge body is arranged under the cushion layer, the end portion of the guiding hole recharge body is provided with a steel reinforcement cage, and the lower end of the guiding hole recharge body is provided with a high pressure jet grouting pile; a pre-stress tube pile is arranged under the pavement of a late-connected segment, a slurry solid is arranged surrounding the pre-stress tube pile, the bottom of the pre-stress tube pile is provided with a prefabricated extension pile end, and high pressure grouting is formed surrounding the prefabricated extension pile end; and an original protection slope is excavated to form a construction platform, cellular concrete is used to realize multistep casting after construction of the construction platform is completed, casing soil is arranged on the cellular concrete, and greening vegetation is arranged on the casing soil. The structure and the construction method can guarantee the construction progress and the construction quality of the subgrade pile-plank type widening structure, guarantee the economy, the safety, the simplified construction process and land resource saving of the construction, and have good economic and technical benefits.

A fast two-dimensional graph recognition method in OPC (optical proximity correction) comprises steps as follows: a series of normal-direction sampling points are formed on the edge of a graph, and optical strength of the normal-direction sampling points is acquired with a fast convolution algorithm; the normal-direction sampling points are subjected to cubic spline fitting according to the optical strength of the normal-direction sampling points, the optical boundary is estimated according to a critical value of optical strength reaction in an optical model, and a first difference is calculated at the optical boundary of the graph so as to estimate a slope of the edge of the graph; a series of tangential-direction sampling points are formed on the edge of the graph, and the optical strength of tangential sampling points for sampling is acquired with the fast convolution algorithm; the difference value of optical strength of each tangential sampling point and the optical strength of a reference point is calculated, and tangential drift is estimated according to the difference value and the slope; two-dimensional bending estimation is executed according to the optical boundary estimated in the optical boundary estimation step as well as the tangential boundary drift.

The invention relates to an insert bolt using a bushing and a manufacturing method of the bushing. In order to stably assemble the bolt, the bushing is clamped in a groove where the base metal bolt is connected, and the embedded bushing can play a role in guiding the connection position of the bolt, thus improving accuracy and stability. Besides, the bushing can be fixed on the base metal by using an outer side projection arranged on the outer side face of the bushing, and the bolt can be prevented from separating from the bushing by using an inner side projection arranged on the inner side face of the bushing.

The invention relates to an insert bolt and a bushing manufacturing method using a bushing. In order to assemble the bolts stably, the bushing is clamped in the groove connected by the base material bolt, and the embedded bushing can play a role in guiding the bolt connection. The role of position, thus referring to accuracy and stability. In addition, the bushing can be fixed to the base material by the outer protrusions provided on the outer side of the bushing, and the bolts can be prevented from coming out of the bushing by the inner protrusions provided on the inner side of the bushing.

The invention relates to the active power control field for a flexible load control system in regional energy Internet and discloses an active power unbalance adjustment method in a flexible load control system. The method comprises steps: when the total active power shortage of a regional power grid is larger than zero, the power generation power of the regional power grid is added; the power consumption power of a flexible load in the regional power grid is reduced, if the active power is still unbalanced, a switchable load can be cut off; when the total active power shortage of the regional power grid is smaller than zero, the power consumption power of the switchable load is added, if the active power is still unbalanced, the power consumption power of the flexible load in the regional power grid can be added; and the power generation power of the regional power grid is reduced, wherein the total active power shortage is the difference between the total active load sum of the regional power grid and planned power consumption of the regional power grid. The method solves problems of poor user experience for the regional power grid and the system stability.

The invention provides a folding car cover, which relates to the technical field of car covers, and includes a rolling mechanism, a collar and a cover cloth, and the rolling mechanism includes a support, a winding shaft, a guide belt and a coil spring; the collar Fixed on the bottom surface of the cover cloth, the winding shaft is rotatably supported on the support, the guide belt is wound on the outside of the winding shaft along the circumferential direction of the winding shaft, and the guide belt is passed through the In the collar, one end of the guide belt is connected to the winding shaft or the coil spring, the other end of the guide belt is connected to the cover cloth, and the coil spring is set on the winding shaft and used to drive the winding shaft. The rotation of the reel makes the guide belt rewind, the inner end of the coil spring is connected with the reel, and the outer end of the coil spring is connected with the support. The folding car cover provided by the invention is convenient to use and has a simple structure, the cover cloth can be quickly rolled up, and the folding is convenient and practical.

The invention provides a door plank structure. The door plank structure comprises a door plank and a sill matched with the door plank for use, wherein the door plank comprises a door plank body; reinforcing ribs are arranged on the inner side of the door plank body; a left bent part, a right bent part, an upper bent part and a lower bent part are integrally formed with the door plank body; the left bent part comprises a first left bent edge and a second left bent edge; the right bent part comprises a first right bent edge and a second right bent edge; the upper bent part comprises a first upper bent edge and a second upper bent edge; and the lower bent part comprises a first lower bent edge and a second lower bent edge. The door plank structure has the beneficial effects that a light door plank structure is provided; the production operation is simple; the weight is light; the operation stability is good; the integral safety is higher; and the door plank structure can be prevented from slipping out of the sill.

The invention provides a selective hydrogenation method. According to the selective hydrogenation method, a fixed bed reactor is utilized, a Pd-Ag series hydrogenation catalyst is put into the reactor, and pyrolysis gasoline and hydrogen enter the reactor after being mixed and preheated; the hydrogenation technological conditions are that a reaction temperature is 30 to 120 DEG C, reaction pressure is 2 to 6MPa, a space velocity is 0.5 to 4h<-1>, and a volume ration of hydrogen to oil is (100 to 600) to 1; one part of a hydrogenated product serve as internal circulation of a one-stage hydrogenation reaction, and the other part of the hydrogenated product is sent into a two-stage hydrogenation reactor to be hydrogenated and refined. By means of the catalyst which is prepared from the specific crystal form nickel-containing aluminum oxide carrier prepared by the selective hydrogenation method disclosed by the invention, dispersity and a utilization rate of reactive metal are greatly improved; meanwhile, selected activity assisting ingredients are added to achieve a synergistic effect, and hydrogenation performance and selectivity of the catalyst are improved.

A fast two-dimensional graph recognition method in OPC (optical proximity correction) comprises steps as follows: a series of normal-direction sampling points are formed on the edge of a graph, and optical strength of the normal-direction sampling points is acquired with a fast convolution algorithm; the normal-direction sampling points are subjected to cubic spline fitting according to the optical strength of the normal-direction sampling points, the optical boundary is estimated according to a critical value of optical strength reaction in an optical model, and a first difference is calculated at the optical boundary of the graph so as to estimate a slope of the edge of the graph; a series of tangential-direction sampling points are formed on the edge of the graph, and the optical strength of tangential sampling points for sampling is acquired with the fast convolution algorithm; the difference value of optical strength of each tangential sampling point and the optical strength of a reference point is calculated, and tangential drift is estimated according to the difference value and the slope; two-dimensional bending estimation is executed according to the optical boundary estimated in the optical boundary estimation step as well as the tangential boundary drift.

The invention discloses an electromagnetic heating device for electric wire production, which comprises a device body, a motor is fixedly connected to one side of the inner wall of the device body, a first pulley is fixedly connected to one end of the output shaft of the motor, and the surface of the first pulley is connected to a belt through a belt drive. The second pulley, and the back side of the second pulley is fixedly connected with the moving device; between the two sides of the inner wall of the device body and below the moving device is fixedly connected with a partition, and the lower end of the moving device is fixed on the partition; the lower end of the moving device is fixedly connected with a The electromagnetic coil, the bottom of the electromagnetic coil passes through the partition and extends to the bottom of the partition. The invention uses electromagnetic heating to achieve the purpose of uniform heating, greatly increases the work efficiency, shortens the heating time, and does not need manual supervision during heating to avoid damage to electric wires.

The invention discloses toltrazuril inclusion compound lyophilized powder. The toltrazuril inclusion compound lyophilized powder is obtained by adopting sulfobutyl ether-beta-cyclodextrin to perform inclusion on toltrazuril and then carrying out a lyophilization process. A preparation method of the toltrazuril inclusion compound lyophilized powder concretely comprises the following steps: dissolving the toltrazuril by an organic solvent to obtain an organic solution of the toltrazuril; adding the organic solution of the toltrazuril into an aqueous solution of the sulfobutyl ether-beta-cyclodextrin, and magnetically stirring for carrying out a reaction; carrying out rotary evaporation on the materials obtained after the reaction so as to remove the organic solvent, then filtering by using amicrofiltration membrane and drying to obtain a toltrazuril inclusion compound; carrying out the lyophilization process to obtain the toltrazuril inclusion compound lyophilized powder. According to the preparation method, the sulfobutyl ether-beta-cyclodextrin is adopted to perform inclusion on the toltrazuril, so that the solubility of the indissolvable drug-the toltrazuril is improved; by adopting the lyophilization process, the stability and bioavailability of the toltrazuril are improved; the toltrazuril inclusion compound lyophilized powder enriches the preparations of antiparasitic drugs.

The invention discloses a marking machine sliding positioning marking device for gas discharge tube machining, and relates to the field of marking devices. The marking machine sliding positioning marking device comprises a device main body, and two first motors are arranged on the outer surface of the device main body. According to the marking machine sliding positioning marking device, by arranging the first motors, rotating shafts, gears, sliding blocks, sliding grooves and a rack, due to the fact that a user puts three gas discharge tubes into three placement cylinders, after marking is carried out on the gas discharge tube in one placement cylinder, the user starts the first motors through an operation table, the first motors work to drive the rotating shafts to rotate, the rotating shafts rotate to drive the gears to rotate, due to the fact that the gears mesh with the rack, the gear can drive the rack to move in the rotating process and drive supporting rods to move at the same time, the supporting rods move to drive the sliding blocks to slide in the sliding grooves, then the corresponding placement cylinder is driven to move, another placement cylinder with one gas discharge tube can conveniently and rapidly move to the position under a marking carbon head, and then the marking carbon head can extend into the corresponding gas discharge tube and carry out marking on theinner wall of the corresponding gas discharge tube.

The invention discloses a cubic FeOOH or Fe loaded on a nano-carbon ribbon 4 (Fe(CN) 6 ) 3 The preparation method and application of the invention, the steps are as follows: select an ion exchange resin as a carbon source, and mix it with ferrous chloride; add ionic water, stir at room temperature, filter and vacuum dry to remove moisture, and obtain the ion exchange resin after Fe exchange; The ion exchange resin is crushed and put into a quartz boat, mixed with sodium carbonate in a certain proportion, and then placed in a tube furnace, under N 2 Under the atmosphere, the tube furnace is preheated first, and then the quartz boat is pushed to the heating center for heating to obtain cubic FeOOH or Fe 4 (Fe(CN) 6 ) 3 Loaded carbon ribbon; finally, after grinding, pickling, water washing and ethanol centrifugal washing, vacuum drying to remove impurities from the carbon ribbon. The method is green and simple, and the prepared carbon ribbon can improve the performance of the lithium-air battery.

The invention provides a folding car cover, which relates to the technical field of car covers. The folding car cover comprises a winding mechanism, a lantern ring and a cover cloth, wherein the winding mechanism comprises a support, a winding shaft, a guide strip and a coil spring; the lantern ring is fixed on the bottom surface of the cover cloth; the winding shaft is rotationally supported on the support; the guide strip is wound on the external side of the winding shaft in a circumferential direction of the winding shaft; the guide strip is threaded in the lantern ring; one end of the guide strip is connected with the winding shaft or the coil spring; the other end of the guide strip is connected with the cover cloth; the coil spring sleeves the winding shaft and is used for driving the winding shaft to rotate so that the guide strip is rewound; the inner end of the coil spring is connected with the winding shaft; and the outer end of the coil spring is connected with the support. The folding car cover provided by the invention is advantaged in that the folding car cover is convenient in use and simply structured, the cover cloth can be rapidly wound, the folding car cover is convenient to fold, and the folding car cover is practical.

The invention relates to a novel FET pulse power amplifier, and belongs to the technical field of microwave circuit design. Firstly, aiming at the narrow bandwidth of the amplifier, a low-impedance quarter-wavelength bias line in a circuit is changed into a bypass capacitor, so that firstly, microwave radiation in a cavity can be effectively reduced, and mutual crosstalk between signals is reduced; and secondly, the bandwidth of the amplifier can be effectively improved. And secondly, aiming at the influence of video signal leakage on the circuit, high-impedance quarter-wavelength grounding wires are additionally arranged at the input end (in front of a direct current blocking capacitor) and the output end (behind the direct current blocking capacitor) of the amplifier, so that the leakage of the video signal is effectively reduced, the stability and reliability of the amplifier and the circuit are improved, and meanwhile, the signal-to-noise ratio of the output signal is improved. The circuit is simple in form and easy to realize.

The invention discloses a positioning device for box body limiting hole machining. The positioning device comprises a positioning placement base; a positioning support base is connected to the positioning placement base; the bottom end of a positioning linkage base is provided with two linkage base abutting columns which are symmetrically arranged; a positioning downward-pressing base is further arranged in an area between the positioning support base and the positioning linkage base; a downward-pressing base arc-shaped opening used for receding a support base connecting rod is arranged on thepositioning downward-pressing base; and a downward-pressing base abutting groove is provided with an abutting groove deep position part and an abutting groove shallow position part; the groove depthfrom the abutting groove shallow position part to the abutting groove deep position part is gradually deepened in the circumferential direction of the positioning down-pressing base; and a positioningdriving assembly for driving the positioning down-pressing base to rotate is further mounted on the positioning placement base. Through the arrangement of the positioning support base and the positioning down-pressing base and the cooperation of the down-pressing base abutting groove and the linkage base abutting column, stable positioning work can be conducted on the circumferential position ofa to-be-machined workpiece, and subsequent precise punching operation can be conducted.

The invention discloses a preparation method and application of cubic FeOOH or Fe4(Fe(CN)6)3 loaded on a nanocarbon ribbon. The preparation method comprises the following steps: selecting ion exchangeresin as a carbon source, and mixing with ferrous chloride; adding deionized water, then stirring at room temperature, filtering and performing vacuum drying to remove moisture, so that ion exchangeresin after Fe is exchanged is obtained; smashing the ion exchange resin and putting the smashed ion exchange resin into a quartz boat, mixing with sodium carbonate in a certain proportion, then putting into a tubular furnace, in a N2 atmosphere, firstly performing preheating on the tubular furnace, and then pushing the quartz boat to a heating central position to be heated, so that a carbon ribbon loaded with the cubic FeOOH or Fe4(Fe(CN)6)3 is obtained; and finally performing grinding, acid pickling, washing, ethanol centrifugal washing and vacuum drying, so that impurities of the carbon ribbon are removed. The preparation method disclosed by the invention is green and simple, and the prepared carbon ribbon can improve performance of a lithium-air battery.