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54results about How to "Convenient spacing" patented technology

Cross-medium coaxial dual-rotor unmanned aerial vehicle with foldable propellers and control method of cross-medium coaxial dual-rotor unmanned aerial vehicle

The invention provides a cross-medium coaxial double-rotor unmanned aerial vehicle with foldable propellers and a control method of the cross-medium coaxial double-rotor unmanned aerial vehicle. The unmanned aerial vehicle comprises a main fuselage module, a vector motor base module, a coaxial propeller power module, a foldable propeller module, a waterproof sealing module and electronic equipment. According to the cross-medium power system, by folding the propellers, the effective area of the propellers is reduced, the influence of different working media of the cross-medium unmanned aerial vehicle on the efficiency of the propellers is fundamentally reduced, the capacity loss is reduced, and the endurance time is prolonged; the number of actuators is reduced, a complex gear structure is omitted, the weight of the unmanned aerial vehicle is reduced, the reliability of the unmanned aerial vehicle is improved, finally, control codes suitable for the cross-medium coaxial double-rotor unmanned aerial vehicle are designed, and automatic control over the rotating speed of motors and folding of propellers of the unmanned aerial vehicle under different working media are achieved. And the power distribution of the unmanned aerial vehicle in the cross-medium task is more reasonable.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Carbon dioxide inter-section displacement pre-fracturing process and design method and related equipment thereof

The invention discloses a carbon dioxide inter-section displacement pre-fracturing process and a design method and related equipment thereof, and belongs to the technical field of oil and gas production, the design method comprises the following steps: establishing an integrated fractured horizontal well numerical simulation model according to seismic data of a target well, logging interpretation data and an engineering parameter range given by an oil production scheme; the integrated fractured horizontal well numerical simulation model is used for simulating single well yields under different section intervals and different single-section carbon dioxide injection amounts by adopting a section-separated gas injection method; drawing a parameter optimization chart based on the single well yield and the carbon dioxide injection section number obtained under different section distances and different single-section carbon dioxide injection amounts; and according to the parameter optimization plate, determining the final segment spacing and the single-segment carbon dioxide injection amount. While the recovery efficiency is improved, the construction efficiency is improved, and the fracturing cost is saved.
Owner:PETROCHINA CO LTD

Miniature dot matrix contrast reduction lens

The utility model relates to the technical field of optical lenses, in particular to a miniature dot matrix contrast-reducing lens, which comprises a lens, the lens comprises a central optical area and a miniature dot matrix area, the miniature dot matrix area comprises two dot matrix structures, namely a large dot matrix with the diameter of 0.18 mm and a small dot matrix with the diameter of 20-30 microns, the number ratio of the large dot matrix to the small dot matrix is 1: 3-1: 8, and the number ratio of the large dot matrix to the small dot matrix is 1: 3-1: 8. The covering density of the dot matrix areas is 10-45%, the dot matrix spacing is 0.2-0.65 mm, the depth of the dot matrix is 2-8 microns, the edge of the dot matrix is provided with a smooth transition area of 0.05-0.1 mm, the lens further comprises micro-lens areas, and the micro-dot matrix areas and the micro-lens areas are alternately distributed. The central optical area of the lens is not covered by the dot matrix, so that clear view is guaranteed; the contrast of the dot matrix area is accurately regulated and controlled, full-view blurring is avoided, micro-lens defocusing and dot matrix contrast reduction are combined, eye axis growth is doubly inhibited, dot matrix size and interval optimization is achieved, and glare and visual interference are reduced.
Owner:SHANGHAI LUSHIQING MEDICAL TECHNOLOGY CO LTD

Anti-edging chip material box

The utility model relates to the technical field of semiconductor chip storage equipment, and particularly discloses an anti-edge-grinding chip material box which comprises a material box body, and through grooves are formed in the inner walls of the two sides of the material box body in the length direction; the number of the through grooves is multiple, and a bearing piece is formed between every two adjacent through grooves in the vertical direction; a supporting strip is arranged above the bearing piece; and the supporting strips are located at the ends, away from the inner wall of the material box body, of the bearing pieces, the tops of the supporting strips are chamfered, and the two supporting strips located on the same horizontal plane bear the chip substrate. The supporting strips are arranged on the bearing piece between the two adjacent through grooves, after the supporting strips are chamfered, surface contact between the supporting strips and the chip substrate is changed into line contact, and abrasion between the chip substrate and the bearing piece is reduced; and meanwhile, the chip substrate is suspended and slightly bent under the action of gravity, and the edge of the chip substrate is far away from the through groove, so that the possibility that the edge of the chip substrate is in contact with the through groove is reduced, and the problem that the chip substrate is easy to wear in the material box is solved.
Owner:WUXI RADAR ELECTRONICS TECH CO LTD

A photovoltaic inverter layered distributed installation layout optimization method facilitating operation and maintenance and upgrading

PendingCN122225528ASave inspection timeAnnual operation and maintenance labor costs reducedSingle network parallel feeding arrangementsEmergency power supply arrangements
The application discloses a photovoltaic inverter layered distributed installation layout optimization method convenient for operation and maintenance and upgrading, constructs a three-layer linkage architecture of a centralized management layer, a regional control layer and a device execution layer, the regional control layer automatically scans a photovoltaic inverter NFC electronic tag through a dynamic topology identification mechanism, realizes plug-and-play of the device and second-level topology updating, a master and standby regional control unit adopts an incremental snapshot synchronization technology, completes non-perception switching within millisecond-level time, and ensures continuity of control instructions, the system adopts an operation and maintenance efficiency index dynamic optimization algorithm, forms an adaptive optimal layout scheme, a five-dimensional health degree evaluation model is constructed by combining DC side attenuation and MPPT deviation, early warning and pre-maintenance of device failure are realized, a time-space separation gray upgrade strategy combined with power generation power prediction is deployed, batch upgrading is realized, and automatic function verification and rollback are realized, and zero risk in the upgrading process is ensured. The application solves the technical problems of static rigidity of a traditional layout and concentrated upgrading risks.
Owner:郑州祥和电力设计有限公司

Box beam top plate steel bar binding device

The invention relates to the technical field of reinforcing steel bar machining, in particular to a box beam top plate reinforcing steel bar binding device which comprises a rack, limiting cross rods arranged on the two sides of the top of the rack and supporting cross rods arranged on the tops of the two limiting cross rods correspondingly. The top of the rack is provided with a supporting mechanism used for adjusting the distance between the two supporting transverse rods and providing support for the supporting transverse rods, the supporting mechanism comprises a plurality of supporting connecting rods which are fixedly arranged on the inner side of the rack and distributed at equal intervals and movable transverse frames arranged at the two ends of the supporting connecting rods in a sliding mode respectively, and the limiting transverse rods are fixedly connected with the movable transverse frames. The box-shaped beam top plate reinforcing steel bar binding device can be matched with box-shaped beam top plates with different widths and different side inclination angles, the binding efficiency of box-shaped beam top plate reinforcing steel bars is improved, the application range of the reinforcing steel bar binding device is expanded, the reinforcing steel bar binding device can be suitable for more use conditions, waste of materials and labor is reduced, and the cost is reduced. The situation that when an existing steel bar binding device locates box beam top plate steel bars with different widths, more time and labor are wasted, and steel consumption is increased is avoided.
Owner:ANHUI XINJIAN METAL NEW MATERIALS CO LTD

Pharmaceutical composition containing mesenchymal stem cells and application

The invention belongs to the technical field of biology, and relates to a pharmaceutical composition containing mesenchymal stem cells and application. By controlling the using time, the medication mode and the dosage of the mesenchymal stem cells and the vitamin D, the synergistic effect of the mesenchymal stem cells and the vitamin D is achieved, the cortical bone mineral density can be effectively improved, meanwhile, the bone trabecula density and the bone trabecula cell density can be improved, and the bone quality is improved. In addition, during formation and distribution of the bone trabecula, the thickness of the bone trabecula, the distance between the bone trabecula and the number of the bone trabecula can be improved, and the biological performance of thighbone and lumbar vertebra bones is effectively improved. According to the technical scheme that the MSC and the RANKL inhibitor are combined for use, the MSC and the RANKL inhibitor have a synergistic effect, various functional indexes of osteoporosis can be comprehensively improved, obviously, the MSC and the RANKL inhibitor are combined for use, the thickness of bone trabecula, the distance between the bone trabecula and the number of the bone trabecula can be effectively improved, the biomechanical property of tibia is effectively improved, and a good reference basis is provided for clinical application.
Owner:HELP STEM CELL INNOVATIONS CO LTD

Motor shell machining tool

The utility model relates to the technical field of motor machining, in particular to a motor shell machining tool which comprises a base and a fixing assembly, the fixing assembly comprises a traction piece, a supporting plate, two lifting structures, a mounting plate and two clamping pieces, and two adjusting pieces are controlled according to the size of a motor shell to drive two supporting seats to drive two lifting plates to move. The distance between the two lifting plates is adjusted to be matched with the size of a motor shell to be machined, after the two lifting plates move to the proper positions, the motor shell is placed on the two lifting plates, then the two clamping pieces on the mounting plate are operated to fix the tail end of the motor shell to limit the motor shell, and the motor shell is clamped by the two lifting plates with the distance adjustable. According to the machining positioning tool for the motor shell, the problem that according to an existing machining positioning tool for the motor shell, the distance position between a left clamping plate and a right clamping plate is fixed, when the motor shell with the large size is encountered, the motor shell cannot be effectively fixed, and therefore the universality is low is solved.
Owner:重庆砻锐科技有限公司

Combined double-top hoop for high-voltage cable

The utility model discloses a combined type double-top hoop for a high-voltage cable, which relates to the technical field of hoops and comprises an upper hoop and a lower hoop, bolts are slidably connected in the upper hoop and the lower hoop, nuts are in threaded connection with the surfaces of the bolts, and the nuts are in threaded connection with the surfaces of the upper hoop and the lower hoop. A lower mounting base is fixedly mounted on the side, away from the upper hoop, of the lower hoop, an upper mounting base is fixedly mounted on the side, away from the lower hoop, of the upper hoop, the upper mounting base and the lower mounting base are the same in internal structure, and two mounting pieces are slidably connected into the lower mounting base and move oppositely. The position between the two mounting pieces can be conveniently adjusted, then the positions of the mounting holes in the two mounting pieces can be conveniently adjusted according to the distance between the two mounting holes in the mounting frame in the later period, the whole device can be conveniently mounted, and the situation that the positions of the mounting holes in the two mounting pieces do not correspond to the positions of the mounting holes in the mounting frame, so that the device is damaged is prevented. And inconvenience in installation is avoided.
Owner:LINYI YIMENG CABLE CO LTD

Static electricity eliminating device for bag making machine

The utility model discloses a static electricity eliminating device for a bag making machine, which comprises a working table, a door-shaped frame is fixedly arranged on the working table, two bidirectional screw rods are rotatably arranged on the door-shaped frame, two mounting frames are arranged between the two bidirectional screw rods, static electricity bars are arranged on the two mounting frames, and the static electricity bars are arranged on the two mounting frames. The two bidirectional lead screws are both in threaded connection with two moving blocks, overturning rods are rotationally installed at the ends, close to the mounting frames, of the moving blocks, the ends, away from the moving blocks, of the overturning rods are rotationally installed on the mounting frames at the corresponding positions, and a driving mechanism is arranged on the n-shaped frame. The two mounting frames and the two static bars which are arranged in the mirror image mode are arranged on the door-shaped frame, static electricity on the two sides of a packaging bag can be eliminated when the packaging bag passes through the space between the two static bars, the static electricity eliminating effect of the packaging bag is greatly improved, meanwhile, the distance between the two static bars can be adjusted, and the packaging bag is convenient to use. And static electricity removing can be conveniently conducted on packaging bags with different thicknesses, and the applicability of the device is improved.
Owner:ZHEJIANG LIFENG MASCH CO LTD

Material throwing device of waste rock throwing machine for roadway filling

The utility model belongs to the technical field of filling mechanical equipment, and particularly discloses a throwing device of a gangue throwing machine for roadway filling, which comprises a rack, sleeves, adjusting columns, positioning bolts and baffles, a conveying belt is arranged on the inner side of the rack, mounting plates are symmetrically arranged above the rack, the sleeves are fixed on the mounting plates, and the adjusting columns are arranged on the sleeves. A plurality of second positioning holes are evenly formed in the supporting rod, a first positioning hole is formed in the sleeve, the positioning plug pins are inserted into the first positioning holes and the second positioning holes to limit the supporting rod and the sleeve, the adjusting column is fixed to the upper portion of the supporting rod, a sliding groove is formed in the lower portion of the adjusting column, and a two-way lead screw is arranged in the sliding groove. Screw rod sliding blocks are symmetrically connected to the bidirectional screw rod in a threaded mode, a hanging rod is fixed below the screw rod sliding blocks, and a baffle is fixed below the hanging rod. During use, the conveying belt is used for throwing materials, the baffles are used for limiting gangues, the distance between the baffles can be adjusted by rotating the two-way lead screw before use, and meanwhile the positioning plug pins can be detached to adjust the heights of the baffles.
Owner:SHANGHAI KEMEI MECHANICAL & ELECTRICAL EQUIP MFG CO LTD

Spraying device for robot shell machining

The utility model discloses a spraying device for robot shell processing, which comprises a working table, a support is arranged on the rear side of the upper end face of the working table, a spraying mechanism is arranged on the support, sliding seats are arranged on the left side and the right side of the upper end face of the working table in a sliding mode, and first sliding blocks are symmetrically arranged on the lower end faces of the two sliding seats. First sliding grooves corresponding to the first sliding blocks are formed in the front side and the rear side of the upper end face of the workbench correspondingly, supporting bases are slidably arranged on the upper end faces of the two sliding bases correspondingly, rotating shafts are rotationally arranged on the two supporting bases correspondingly, limiting bases are detachably arranged at the inner side ends of the two rotating shafts correspondingly, a driving motor is connected to the outer end of the rotating shaft on one side, and second sliding blocks are arranged on the lower end faces of the two supporting bases correspondingly. Second sliding grooves corresponding to the second sliding blocks are formed in the two sliding bases correspondingly, limiting rods are slidably arranged on the front sides and the rear sides of the upper end faces of the two supporting bases correspondingly, limiting holes corresponding to the multiple limiting rods are formed in the two sliding bases correspondingly, multiple sets of limiting holes are formed at intervals, through the design of the sliding bases and the supporting bases, spraying operation can be conveniently conducted on the long shell, and practicability is improved.
Owner:WUHU QICHENG AUTOMATION TECHNOLOGY CO LTD

Foldable multifunctional office cabinet

The utility model discloses a foldable multifunctional office cabinet which comprises connecting rods, the number of the connecting rods is four, the surfaces of one sides of the front connecting rod and the rear connecting rod are rotationally connected with side plates through hinges, the front side plate and the rear side plate are connected through hinges, and the surfaces of the opposite ends of the two rear connecting rods are jointly provided with a back plate. A vertical plate is jointly mounted on the surfaces of the opposite ends of the two front connecting rods, cabinet doors are symmetrically mounted on the vertical plate, fixing rods are mounted on the two sides of the front end of the back plate, a plurality of mounting frames are movably mounted on the surfaces of the fixing rods, rotating assemblies are mounted on the mounting frames, and a cabinet plate is jointly mounted at the upper ends of the two rotating assemblies. According to the folding office cabinet, the back plate and the vertical plate are connected through the two rotating side plates, the back plate and the vertical plate are close to each other, the side plates make contact with the vertical plate and the back plate respectively, folding of the office cabinet can be achieved, transportation of the office cabinet is facilitated, and the occupied space during transportation is effectively reduced.
Owner:ZHEJIANG ZHIWEI FURNITURE CO LTD

A horizontal and vertical deformation photovoltaic support

The utility model discloses a kind of horizontal and vertical deformation photovoltaic support, its structure includes two fixed frames and movable pieces of symmetrical distribution.The fixed frame is formed by second, third, fifth connecting piece of mutual connection, third and fifth connecting piece are fixed in the both ends of second connecting piece, form stable mechanical structure;Movable piece contains two different lengths connecting pieces, respectively for connecting fixed frame and supporting photovoltaic panel edge.By replacing movable piece, photovoltaic panel can be quickly converted between horizontal and vertical arrangement, adapt to different seasons light demand.Fifth connecting piece uses telescopic design, cooperate locking piece to realize photovoltaic panel inclination accurate adjustment.The support system optimizes material utilization, reduces cost, improves power generation efficiency and stability.
Owner:YANGTZE INSTITUTE FOR SOLAR TECHNOLOGY

Gas chromatograph convenient to install

The utility model discloses a gas chromatograph convenient to install, which relates to the technical field of gas chromatographs and comprises a mounting seat and a gas chromatograph, support legs are distributed below the mounting seat in a square shape, rollers are arranged in the support legs, a driving shaft is rotatably connected in the mounting seat and is driven by a motor, easy-to-pull components are arranged on two sides of the mounting seat, and the easy-to-pull components are connected with the mounting seat. Clamping assemblies are arranged on the inner sides of the adjacent easy-to-pull assemblies, and an adjusting assembly is arranged below the mounting base. The chromatograph main body does not need to be punched and fixed, time and labor are saved, the mounting efficiency is greatly improved, the situation that the chromatograph main body shakes when bolts are loosened after being used for a period of time is avoided, normal operation of the chromatograph main body is well guaranteed, the using effect of the chromatograph main body is improved, and the using requirement is met; when the chromatographic instrument main body needs to be moved, the chromatographic instrument main body does not need to be manually lifted to move in a rolling contact manner of the rollers, so that the labor intensity is greatly reduced, and the moving efficiency is improved.
Owner:SHAANXI SINOCHEM LANTIAN NEW CHEM MATERIAL CO LTD

Photovoltaic floating body and photovoltaic system

The invention discloses a photovoltaic floating body and a photovoltaic system, the photovoltaic floating body comprises a floating body, the floating body is provided with at least two lightening holes, the floating body is provided with at least two groups of bracket mounting surfaces, and the bracket mounting surfaces are used for supporting at least two groups of photovoltaic modules through module brackets. According to the photovoltaic floating body disclosed by the invention, the photovoltaic module is supported through the mounting boss, so that the photovoltaic module is lifted, the water leaving height of the photovoltaic module is increased, the water entering probability of the photovoltaic module is reduced, the structure is simple, and the cost is low; meanwhile, a single photovoltaic floating body can support at least two groups of photovoltaic modules at the same time, so that the number of the photovoltaic floating bodies in the photovoltaic system is reduced, connection nodes are further reduced, the overall structural strength and stability of the floating body square matrix are improved, and the inclination angle difference of the photovoltaic modules in the photovoltaic system is optimized; in addition, the distance between the photovoltaic modules in the row can be shortened, and the installed capacity is effectively improved.
Owner:SUNGROW FPV SCI & TECH CO LTD

Lettering device for machining side plate of automobile tire mold

The invention discloses a lettering device for automobile tire mold side plate machining, and relates to the technical field of tire mold machining, the lettering device comprises a clamping part and a lettering part, the clamping part comprises a clamping mechanism and a moving mechanism, the clamping mechanism comprises a pedestal, lug plates are installed at the top end of the pedestal, a shaft sleeve is rotatably installed between the lug plates, and the shaft sleeve is connected with the clamping mechanism; a shaft sleeve is arranged on the base, a clamping arm is further connected to the side face of the shaft sleeve, a vertical shaft is rotationally installed in the end of the clamping arm in a damping mode, clamps are installed at the upper end and the lower end of the vertical shaft correspondingly, and clamping jaws are movably installed in the clamps. The two clamping jaws can be controlled to be clamped on the upper side and the lower side of the die by rotating the shaft sleeve, so that the die can be tightly butted and conveniently fixed, and in addition, the shaft sleeve can rotate in the lug plate, so that the position of the clamping arm is adjusted, the clamping position on the die can be changed, and the device is more practical.
Owner:合肥大道模具有限责任公司

Leveling and demolding device for steel plate of beam lifting hole of beam plate prefabricated pedestal

The utility model provides a leveling and demoulding device for a beam lifting hole steel plate of a beam plate prefabrication pedestal, which belongs to the field of workpiece prefabrication and comprises a supporting seat, a leveling steel plate arranged at the open end of the supporting seat and a gradienter fixedly mounted on the leveling steel plate. Four jacks which are evenly distributed are fixedly installed in the supporting base, top plates are fixedly installed at the telescopic ends of the four jacks, and four sets of installation grooves corresponding to the jacks are symmetrically formed in the leveling steel plate. A communicating groove which communicates with the mounting grooves and corresponds to the telescopic end of the jack is formed between the two mounting grooves. By arranging the top plate and the supporting plate, leveling of the leveling steel plate can be achieved, prefabricated parts can be manufactured conveniently, meanwhile, the distance between the supporting plate and the top plate can be adjusted by rotating the threaded sleeve, and therefore demolding of the prefabricated parts can be achieved, and operation is more concise and convenient.
Owner:ZHEJIANG COMM CONSTR GRP CO LTD +2

Adjustable welding pipe shaping and straightening device

The utility model discloses an adjustable welded pipe shaping and straightening device, and relates to the technical field of welded pipe shaping and straightening. The adjustable welded pipe shaping and straightening device comprises a straightening base, displacement grooves are formed in the surfaces of the front side and the rear side of the straightening base correspondingly, the upper sides of the two displacement grooves extend out of the upper surface of the straightening base, displacement blocks are slidably connected to the interiors of the two displacement grooves correspondingly, the interiors of the two displacement blocks are hollow, and the interiors of the two displacement blocks are hollow. The upper surface of the displacement block is fixedly connected with a lower half wheel, the upper surface of the lower half wheel is provided with a through groove extending into the displacement block, the inner wall of the through groove is provided with a limiting groove, the interior of the through groove is slidably connected with a connecting pipe, and the outer surface of the connecting pipe is provided with a limiting block matched with the limiting groove. According to the shaping and straightening device, the distance between the upper half wheel and the lower half wheel needs to be adjusted many times, uniformity after adjustment is guaranteed, the adjusting efficiency is greatly improved, and the practicability of the whole shaping and straightening device is improved.
Owner:XICHUAN ZHUTIAN PIPE CO LTD

A tablet powder removal device for a tablet press

This utility model discloses a tablet powder removal device for a tablet press, including a mounting frame. A feeding hopper is fixedly mounted on the mounting frame. A first conveyor belt group is provided at the output end of the feeding hopper. A second conveyor belt group is provided above the first conveyor belt group. Brushes are provided on the conveyor belts of the first and second conveyor belt groups. The second conveyor belt group rotates in opposite directions to the first conveyor belt group, with the second conveyor belt group rotating at a lower speed than the first conveyor belt group. A powder suction chamber and a powder collection box are fixedly mounted on the mounting frame. One side of the powder collection box is connected to the powder suction chamber through a pipe. An exhaust fan is provided on the side of the powder collection box away from the powder suction chamber. This utility model, by setting up the second and first conveyor belt groups with brushes, brushes away the powder from the tablets and promptly removes it through the powder suction chamber, reducing wear between tablets and the possibility of powder re-adheding to the tablets.
Owner:ZHENGZHOU WEIYI BIOTECHNOLOGY CO LTD

Modularized conveyor capable of being quickly disassembled and assembled

The utility model relates to the technical field of conveying equipment, in particular to a modular conveyor capable of being quickly disassembled and assembled, which comprises a pair of mounting side plates, a width adjusting component arranged between the two mounting side plates, a pair of height adjusting components arranged at the bottoms of the two mounting side plates, a splice plate arranged on one side of each mounting side plate, and a plurality of connecting plates arranged on the splice plates. And a splicing groove is formed in one side, far away from the splicing plate, of each mounting side plate. The width adjusting assembly is arranged, the rotating shaft can be driven by rotating the rotating handle to drive the gear to rotate, then the racks on the two sides move synchronously along the guide rails, the telescopic frame is driven to accurately adjust the distance between the installation side plates on the two sides, and convenient width adjustment is achieved; and through combined use of a mounting frame, a limiting rod, a handle I, a disc, a spring, a limiting disc and a limiting hole, the positions of a rotating shaft, a gear, a rack and a telescopic frame after adjustment can be effectively locked, and the situation that the distance between the two mounting side plates is changed due to accidental looseness is prevented.
Owner:JIANGSU ALL NICE AUTOMATION EQUIP LTD CO

PCBA circuit board dispensing device

The utility model belongs to the field of circuit board production, and particularly relates to a PCBA (Printed Circuit Board Assembly) circuit board dispensing device which comprises a dispensing device body, the glue dispensing device body is fixedly connected with a cross-shaped sliding table and an electric linear sliding table; a fixing jig is mounted on the electric linear sliding table; a fixed arm is mounted on the cross-shaped sliding table; the bottom of the fixed arm is fixedly connected with a fixed seat; a pair of sliding rails is fixedly connected to the bottom of the fixed seat, and by arranging the fixed seat, the sliding rails, the adjusting sliding seat, the fixed sliding seat and bolts, when the multi-point dispensing device is used, a worker can conveniently adjust the position and the distance of the dispensing heads according to requirements, so that the multi-point dispensing effect can be conveniently performed on different positions of a circuit board; and the application range is widened, so that the dispensing requirements of different point positions of different circuit boards are met.
Owner:HUIZHOU XINZHIWEI TECHNOLOGY CO LTD

Tunnel support optimization method, system, equipment and medium based on nonlinear peridynamics

The embodiment of the present invention provides a tunnel support optimization method, system, device and medium based on nonlinear peridynamics, which belongs to the field of structural disaster prevention and mitigation. The method includes: sampling tunnel surrounding rock data and conducting indoor tests to obtain rock stress-strain data; simulating based on the data to obtain a nonlinear constitutive relationship curve of the rock, determining the nonlinear constitutive relationship of the rock, determining the initial parameters of the anchor rod and conducting numerical analysis based on peridynamics, simulating the displacement of the surrounding rock after tunnel excavation unloading and anchor rod insertion, and evaluating the degree of surrounding rock deformation; and optimizing the distribution length and spacing of the anchor rods. By sampling the surrounding rock and conducting indoor tests and conducting numerical analysis based on peridynamics, simulating the displacement of the surrounding rock after tunnel excavation unloading and anchor rod insertion, evaluating the degree of surrounding rock deformation, optimizing the distribution length and spacing of the anchor rods, the accuracy and effectiveness of tunnel support optimization are comprehensively improved.
Owner:SHANDONG UNIV

Taxonomy system for facilitating space group reasoning and method for recommending zone axis in connection therewith

A method and a system for providing a parking service are disclosed. An SADP classification scheme comprises plural labels. Here, the labels are constructed by grouping SADP (Selected Area Diffraction Pattern) images photographed through a TEM (Transmission Electron Microscope, TEM) according to specific reference, and the labels are matched with space groups of a classification scheme in crystallography.
Owner:LIGHTVISION CORP

Double-fire-source combustion experiment device capable of being doped with gasified fluid

The invention discloses a double-fire-source combustion experiment device capable of mixing gasified fluid, which is composed of two sets of fire source combustion experiment devices, and the fire source combustion experiment devices comprise: a first gas device comprising a gas storage bottle, a gas bottle valve, a pressure gauge, a gas flowmeter and a first gas transportation pipeline which are communicated in sequence; the second gas device comprises a peristaltic pump, a liquid collecting pipe, a liquid flow meter and a second gas conveying pipeline which are communicated in sequence; the gas mixing device comprises a mixed gas conveying pipeline and a burner nozzle which are communicated in sequence, and a temperature sensor is mounted on the lower side of the burner nozzle; the combustor box body device comprises a box body and a combustor fixing device installed on the outer side of the box body. According to the flame experiment device capable of adjusting the distance between the two fire sources and being mixed with the gasification fluid, the distance between the two fire sources, the power of the fire sources and the types of the gasification fluid can be changed, and experiments of combustion of the two fire sources with different distances and different mixed gases can be conveniently carried out.
Owner:HEFEI UNIV OF TECH

Auxiliary device for AGV intersection dispatching

The utility model discloses an auxiliary device for AGV intersection dispatching, which comprises a storage ground, a cross-shaped intersection is arranged on the upper surface of the storage ground, a first AGV is arranged on the upper surface of the left end of the storage ground, and a second AGV is arranged on the upper surface of the rear end of the storage ground; scheduling assemblies are arranged on the two sides of the crossing and used for detecting and controlling starting and stopping of the first AGV and the second AGV; according to the dust removal device, the protection component is arranged, firstly, the sucking pump is controlled to be started, the dust removal pipe can be driven to convey scraped dust into the sucking pump when the sucking pump is started, then the dust removal pipe conveys the collected dust into the collection box, and the filter screen arranged on the collection box can isolate and collect the collected dust; according to the AGV scheduling device, the secondary pollution of dust is avoided, the working environment of the AGV is improved to a great extent, and meanwhile, the accuracy of the AGV driving route can be improved through dust cleaning, so that the scheduling device can be well assisted.
Owner:SHAANXI ZHIZHENG DEXIN ROBOT TECHNOLOGY CO LTD

Turnover device for machining of wind power motor base

The utility model relates to the field of turnover devices, and discloses a wind power motor base machining turnover device which comprises a transverse strip, a vertical plate is fixedly installed at one end of the transverse strip, a driving structure is arranged on the surface of the transverse strip, a second motor is arranged at the top of the driving structure, and rotating shafts are arranged on the sides, close to each other, of the second motor and the vertical plate. According to the design of the device, the special structure of the wind power motor base is fully considered, the device can be suitable for machining of bases of different sizes, in actual production, equipment does not need to be frequently replaced, and the equipment purchasing and maintaining cost of enterprises is reduced.
Owner:SHENGZHOU HUAMING MASCH CASTING CO LTD

Lithium battery aluminum foil winding equipment

The utility model relates to the technical field of lithium battery aluminum foil winding devices, in particular to lithium battery aluminum foil winding equipment which comprises a workbench, a front-back electric push rod is fixedly connected to the surface of the top of the workbench, and a first clamping plate is fixedly connected to the surface of the top of the sleeve end of the front-back electric push rod. The front side surface of the first clamping plate is fixedly connected with a winding motor, the top surface of the telescopic end of the front-back electric push rod is fixedly connected with a second clamping plate, and the side surface, opposite to the first clamping plate, of the second clamping plate is movably connected with a clamping block through a bearing. Through the arrangement of the upper and lower electric push rods, the dust collection boxes, the connecting box, the brushing rod, the rotating rod, the limiting box, the movable plate, the limiting spring and the limiting column, the distance between the opposite sides of the two dust collection boxes can be conveniently adjusted, the brushing rod is utilized to a greater extent, materials are saved, the brushing rod can be conveniently detached and replaced, and more humanization is achieved.
Owner:SHANDONG DELI ALUMINIUM TECH CO LTD

Height-adjustable pipe bracket for natural gas transmission station

The utility model discloses a height-adjustable pipe bracket for a natural gas transmission station, and relates to the technical field of station tools. The height-adjustable pipe bracket for the natural gas transmission station comprises a movable base, a guide rail frame is fixedly connected to the movable base, a pipe bracket platform is slidably connected to the guide rail frame, and a first adjusting assembly used for adjusting the height of the pipe bracket platform is arranged on the guide rail frame; a fixed bracket and a movable bracket with a transverse position adjusting function are arranged on the pipe support platform, and a second adjusting assembly used for adjusting the position of the movable bracket is arranged on the pipe support platform. According to the height-adjustable pipe bracket for the natural gas transmission station, the height of the pipe bracket platform is convenient to adjust, gas transmission pipes are convenient to assemble, and the distance between the fixed bracket and the movable bracket is convenient to adjust, so that the height-adjustable pipe bracket is suitable for supporting and limiting the gas transmission pipes with different sizes, and the supporting and limiting effects of the gas transmission pipes are good; and the air delivery pipe is flexible and convenient to install.
Owner:FUZHOU FUBEI NATURAL GAS CO LTD

Dustproof device for logistics sorting

The utility model discloses a logistics sorting dustproof device which comprises a logistics sorting dustproof rack body, fixing lugs are arranged at the bottoms of the two sides of the logistics sorting dustproof rack body, fastening bolts are arranged in the fixing lugs, and mounting foot plates are arranged at the bottom ends of the fastening bolts. A sealing cover is arranged at the top of the logistics sorting dustproof rack body, dust collectors are arranged at the two ends of the interior of the sealing cover, a dust collection opening is formed in the top end of the interior of the logistics sorting dustproof rack body, and a dust blowing opening is formed in the inclined lower position of the air blower. According to the logistics sorting dustproof machine frame, the logistics sorting dustproof machine frame is arranged on the conveying device, sorted logistics packages have a good dustproof effect, the blower is arranged at the top of the inlet end of the logistics sorting dustproof machine frame, and the blower is arranged at the top of the inlet end of the logistics sorting dustproof machine frame, so that the logistics packages can be conveniently cleaned before entering the logistics sorting dustproof machine frame. And dust on the surface can be blown away through an air blower, so that the surface wrapped by the materials is cleaner and tidier.
Owner:SUZHOU KUANGTE INTELLIGENT TECH CO LTD