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28results about How to "Guaranteed shape" patented technology

Karst foundation model test block preparation device and test method

The invention provides a karst foundation model test block preparation device and a test method, belongs to the technical field of physical property test analysis, and is used for solving the problem that a karst model with a cavity structure is difficult to cast inside by a traditional model test block preparation technology in the prior art. Specifically, the device comprises a model frame with an opening in the top and a reinforcing structure arranged on the periphery of the model frame; the device further comprises a cavity reserving device, the cavity reserving device is located in the model frame and does not make contact with the wall face of the model frame, rock mass similar materials are poured into the model frame to form a karst foundation model test block, and after pouring is completed, the reserving device forms a cavity with an arc-shaped top face in the karst foundation model test block. A cavity space for simulating a karst hole is constructed in the model test block, the problem that a hole structure is difficult to form in the model test block through a traditional preparation technology is effectively solved, and powerful support is provided for deeply researching a karst foundation instability mode and a karst foundation instability process.
Owner:KUNMING PROSPECTING DESIGN INSTITUTE OF CHINA NONFERROUS METALS INDUSTRY CO LTD

Titanium alloy lamellar tissue structure plate and preparation method thereof

ActiveCN119287297AGuaranteed shapeFurnace typesAuxillary arrangementsIngotTitanium
The invention provides a titanium alloy sheet with a lamellar tissue structure and a preparation method thereof, relates to the technical field of titanium alloys, and solves the technical problem of how to prepare the titanium alloy sheet with the lamellar tissue structure. According to the main technical scheme, the method comprises the steps that a titanium alloy cast ingot is forged, and a plate blank for rolling is obtained; the plate blank for rolling is subjected to heat preservation treatment and then is subjected to rolling treatment, and a first plate blank is obtained; the first plate blank is subjected to heat preservation treatment and then subjected to water quenching treatment, and a plate blank subjected to water quenching treatment is obtained; the plate blank subjected to water quenching treatment is subjected to heat preservation treatment at the beta phase transformation point + / -10 DEG C and then subjected to rolling treatment, and a second plate blank with the microscopic structure of a lamellar structure is obtained; after the second plate blank is made into a wrapping ply rolling bag, wrapping rolling treatment is conducted after heat preservation treatment is conducted at the beta phase transformation point + / -10 DEG C, and a third plate blank is obtained; and the third plate blank is subjected to annealing treatment and post-treatment, and the titanium alloy lamellar tissue structure plate is obtained. The titanium alloy plate with the lamellar tissue structure is mainly prepared, and the using temperature reaches up to 700-750 DEG C.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Heat-resistant rubber tube for engine

The invention relates to the technical field of automobile parts, and provides a heat-resistant rubber hose for an engine, which comprises a pipe fitting, and the pipe fitting is provided with a pipe orifice part; the first connecting piece is arranged on the pipe opening part in a sleeving mode, the first connecting piece is provided with a first inner inserting part and a first outer sleeve part, and the first inner inserting part and the first outer sleeve part abut against the inner wall and the outer wall of the pipe opening part respectively; the first outer sliding block is arranged on the first outer sleeve part in a sliding mode, the sliding direction is in the axial direction of the pipe opening part, the first outer sliding block is provided with a first pressing part, and the first pressing part abuts against the outer wall of the pipe fitting in a sliding mode. By means of the technical scheme, the problem that in the prior art, a rubber pipe is likely to deform or fall off when the temperature changes and jolts is solved.
Owner:HEBEI JIGONG HOSE

Light-weight glass bottle small-opening pressing and blowing device and technological method

The invention relates to the technical field of glass bottle processing, and discloses a light-weight glass bottle small-opening pressing and blowing device and technological method.The light-weight glass bottle small-opening pressing and blowing device comprises a power mechanism, the power mechanism further comprises a mounting frame, an electric telescopic rod is fixedly connected to the top of the mounting frame, and before use, it is guaranteed that the electric telescopic rod extends outwards to the outermost periphery; a glass solution with required plasticity is poured inwards through a through hole in the top of the glass bottle mold, the bottle neck space of the glass bottle mold and the internal space of the molding sliding plate form a containing environment, the solution is temporarily stored in the containing space, and the electric telescopic rod drives the extrusion rod to slide downwards, so that the air outlet outer pipe is inserted into the containing environment; and finally, external high-pressure gas is injected into the blank through the gas conveying pipe and the gas outlet outer pipe, so that the blank is expanded and attached to the interior of the glass bottle mold, the pressing and blowing process of the glass bottle is completed, the blank mold is combined with a forming mold, the unnecessary process of overturning during equipment production is omitted, and blank deformation is avoided.
Owner:HEBEI HUAXING GLASS CO LTD

Novel high-elastic flame-retardant cloth

Novel high-elastic flame-retardant cloth comprises the following components in percentage by weight: 40-60% of viscose yarns, 30-53% of PBT (Polybutylece Terephthalate) high-elastic yarns and 6-16% of polyester staple fibers, and the components are lapped into grey cloth, soaked in a flame retardant and dried to obtain a flame-retardant cloth finished product. Compared with the existing flame-retardant mattress cloth, the cost is reduced by about 9%, the rebound effect is better, the flame-retardant effect is better, and the hooking stability among cloth fibers is better. Moreover, the fabric is wider in application range, can be used as a mattress fabric and can replace memory foam, latex cotton and the like.
Owner:HUIZHOU JIAHE NEW MATERIAL TECH

Transmission-type low-temperature lens thermal unloading structure

PendingCN119620323Areduce weightImprove the accuracy of assembly and adjustmentMountingsEntire lensMechanical engineering
According to the transmission-type low-temperature lens thermal unloading structure provided by the invention, a flexible structure is adopted between a lens and a lens frame to be matched with low-temperature glue, and an unloading ring and Bipod laminated structure is adopted between lens groups, so that the surface shape and center deviation requirements of the whole lens assembly under low temperature and gravity are ensured. The main structure comprises a single-group lens assembly, a Bipod internal support, a support ring, an unloading ring and a Bipod external support. Each single lens assembly is composed of a lens, a lens unloading frame, an annular rubber pad and a pressing block. The single lens assembly is connected through an unloading ring and Bipod stacked structure, in order to ensure the mechanical property of the whole lens assembly, two supporting rings are added, and the overall rigidity is increased by reducing the span of Bipod; the external support of the whole lens assembly adopts a Bipod flexible support, so that the influence of the external support on the lens assembly at a low temperature is reduced.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH

Blank making device for hollow ball refractory bricks

The utility model discloses a blank making device for hollow ball refractory bricks, and aims to provide the blank making device for the hollow ball refractory bricks, which is high in transfer efficiency and stability, high in automation degree and convenient for batch transfer and blank making. The device comprises a pressing table, the pressing table is connected with a pressing head, a model frame, a discharging assembly and a lifting assembly, the model frame is detachably connected with the pressing table, the model frame is movably connected with a material lifting support, the lifting assembly is connected with one end of the material lifting support, the discharging assembly is movably connected with the other end of the material lifting support, and the discharging assembly is rotationally connected with a plurality of discharging rollers. And the pressing head is arranged above the model frame and is movably connected with the pressing table. The device has the beneficial effects that the structure of the device is convenient to maintain; workpieces are protected; the workpiece transfer efficiency is improved; the process is efficient and smooth; the structural connection stability is improved; the structural connection strength is improved; the blank forming shape is guaranteed; and automation and transfer efficiency of the device are improved.
Owner:ZHEJIANG CHUANG THERMAL CONDUCTIVE MATERIAL CO LTD

A human body mesh decoupling representation method based on mesh autoencoder

The present invention discloses a human body mesh decoupling representation method based on a mesh autoencoder, comprising: 1) constructing a training data set and a mesh autoencoder, the mesh autoencoder is composed of an encoder and a decoder, the encoder is composed of a shape encoder, a posture encoder and a rotation and translation encoder, taking a human body mesh as input, the shape encoder outputs a shape coding representation, the posture encoder outputs a posture coding representation, the rotation and translation encoder outputs a rotation matrix and a translation vector, the decoder takes a combined encoding of the shape coding representation and the posture coding representation as input, and outputs a human body mesh; 2) training the mesh autoencoder with the training data set, and inputting the human body mesh into the trained mesh autoencoder to obtain its decoupling representation. The present invention can obtain a shape and posture representation of a human body mesh that is rotation and translation invariant and independently decoupled from each other, so that more three-dimensional human body meshes of different shapes and postures can be edited and synthesized using existing human body mesh data.
Owner:SOUTH CHINA UNIV OF TECH

Traditional Chinese medicine decoction piece cutting equipment with precise thickness regulation and control function

ActiveCN224129873UUniform cutting thicknessPrecisely control the feed amountMetal working apparatusMedicinal herbsRatchet
The utility model discloses a traditional Chinese medicine decoction piece cutting device with precise thickness regulation and control, and relates to the technical field of traditional Chinese medicine decoction piece cutting and processing, a transmission part of the device is composed of a transmission disc, an adjusting screw rod, a sliding block and a ratchet wheel assembly, and the swing amplitude of a transmission connecting rod is changed by adjusting the position of the sliding block. Therefore, the moving distance of the transmission belt is accurately regulated and controlled, and the feeding amount of the decoction pieces is further regulated. According to the cutting part, accurate adjustment of a cutting knife is achieved through a cutting disc, a cutting screw and a cutting sliding block, the position of the sliding block can be changed by rotating the cutting screw, and the cutting amplitude is adjusted. The power part is powered by a power motor and a power transmission wheel to drive equipment to operate. Through precise adjustment in the two aspects, cutting of decoction pieces with different thickness requirements can be achieved, the cutting amplitude can be flexibly adjusted according to the diameters of the decoction pieces, the proportion of thick pieces, thin pieces and fragments is reduced, and the material utilization rate and the quality of the decoction pieces are improved.
Owner:SICHUAN TIANRANSHENG CHINESE HERBAL MEDICINE

Traditional Chinese medicine pill production drying device

ActiveCN222364312UGuaranteed shapeDry and heated evenlyDrying gas arrangementsDrying chambers/containersProcess engineeringChinese drug
The utility model discloses a drying device for traditional Chinese medicine pill production, which relates to the field of traditional Chinese medicine pill production and comprises a movable base, a side base plate is arranged on the outer surface of the upper end of the movable base, a controller and a stepping motor are arranged on the outer surface of one side of the side base plate, the controller is located above the stepping motor, and the stepping motor is located above the controller. A drying bin is arranged on the outer surface of one end of the stepping motor. According to the traditional Chinese medicine pill production drying device, the arranged drying bin can be driven by the stepping motor to incline and shake towards the two sides, traditional Chinese medicine pills can be separated and arranged through the partition plates, when the drying bin shakes, the traditional Chinese medicine pills can roll between the partition plates, the appearance of the traditional Chinese medicine pills in the drying process can be guaranteed, and the drying efficiency is improved. The traditional Chinese medicine pills can be dried and heated uniformly; when the side cover is used, one end of the drying bin can be opened, when the drying bin inclines towards the side cover, the side cover can be opened, the traditional Chinese medicine pills can be conveniently discharged out of the drying bin, and discharging and guiding are facilitated.
Owner:DIAOYUTAI MEDICAL GRP JILIN TIANQIANG PHARMA

Heat-resistant rubber hose for engine

The present invention relates to the technical field of automobile parts, and proposes a heat-resistant rubber hose for an engine, comprising a pipe fitting, the pipe fitting having a pipe mouth; a first connecting piece sleeved on the pipe mouth, the first connecting piece having a first inner inserting part and a first outer sleeve, the first inner inserting part and the first outer sleeve respectively abutting against the inner wall and the outer wall of the pipe mouth; a first outer slider slidably arranged on the first outer sleeve, and the sliding direction is along the axial direction of the pipe mouth, and the first outer slider has a first pressing part, and the first pressing part slidably abuts against the outer wall of the pipe fitting. Through the above technical solution, the problem that the rubber hose in the prior art may be deformed or fall off when the temperature changes and bumps.
Owner:HEBEI JIGONG HOSE

Preparation method of stannic oxide-based nano material, VOC (volatile organic compound) gas sensor and preparation method

The invention relates to the technical field of gas detection, in particular to a preparation method of a stannic oxide-based nano material, a VOC (volatile organic compound) gas sensor and a preparation method. The preparation method of the stannic oxide-based nano material provided by the invention comprises the following steps: mixing a tin source and a dispersing agent in a first solvent to prepare a mixed solution; adjusting the pH value of the mixed solution to 3.8-13.5, carrying out a hydrothermal reaction, carrying out solid-liquid separation, and collecting a solid-phase substance to prepare a microsphere precursor; and carrying out sintering treatment on the microsphere precursor to prepare the stannic oxide-based nano material. The preparation method provided by the invention is simple in process, and the gas-sensitive property of the stannic oxide-based nano material can be effectively improved.
Owner:SHENZHEN HUITOU INTELLIGENT CONTROL TECH CO LTD

Shield tunnel bag grouting sinking reducing and deviation rectifying system

ActiveCN222333792ULimit random movementGrouting is efficient and reliableUnderground chambersHydro energy generationStructural engineeringCatheter
The utility model provides a sinking-reducing deviation-rectifying system for the grouting of a bag of a shield tunnel, which avoids the problems of grout runout and grout leakage in the traditional grouting method and ensures the high efficiency and reliability of grouting. The grouting sleeve is mounted in a tunnel structure; in the soil layer cutting stage, the rotary spraying drill rod is arranged in the grouting sleeve, an outlet of the rotary spraying drill rod is located in a soil body outside the tunnel structure, cutting materials are injected through an inlet of the rotary spraying drill rod, the cutting materials are sprayed out through the outlet of the rotary spraying drill rod, the soil layer of the tunnel structure is cut, and a soil layer cutting body is formed. Then, the rotary spraying drill rod is taken out of the grouting casing pipe; the bag grouting mechanism comprises a grouting guide pipe, a grouting floral pipe and a bag; the bag wraps and is fixed outside the grouting floral tube, and the grouting guide tube is connected with the grouting floral tube; in the grouting reinforcement stage, the bag is arranged in the soil layer cutting body, the grouting guide pipe is arranged in the grouting sleeve, grouting is conducted on the bag through the grouting guide pipe, and the bag is unfolded to form a grouting body.
Owner:CHINA UNITED ENG

Novel tire base overlap edge self-melting sealing splicing equipment

The utility model relates to novel tire base lap joint edge self-melting sealing splicing equipment, and belongs to the technical field of tire base machining, the novel tire base lap joint edge self-melting sealing splicing equipment comprises a vertical wall, a deck plate is horizontally fixed on one side of the vertical wall, a first unwinding roller and a second unwinding roller which are parallel to each other are rotatably arranged on the vertical wall, and the first unwinding roller and the second unwinding roller are distributed on the upper side and the lower side of the deck plate; a long-strip-shaped hole is formed in the deck plate, and a tire base on the second unwinding roller penetrates through the long-strip-shaped hole from the lower portion of the deck plate to the upper portion of the deck plate. A temperature control hot air gun is slidably arranged below the deck plate and slides in a reciprocating mode in the length direction of the second unwinding roller, and the temperature control hot air gun is located between the second unwinding roller and the long-strip-shaped hole. The vertical wall is provided with a pressing assembly used for tire base pressing, and the pressing assembly is located behind the long-strip-shaped hole in the tire base conveying direction. The vertical wall is provided with a traction assembly used for assisting the second unwinding roller in tire base unwinding. The tire base lap joint device has the effect of improving the tire base lap joint efficiency.
Owner:YUDUN WATERPROOF BUILDING MATERIALS GRP CO LTD

Tagatose crystal form and preparation process thereof

The invention relates to the technical field of tagatose, in particular to a tagatose crystal form and a preparation process thereof, the tagatose crystal form has characteristic diffraction peaks when the diffraction angles 2 theta are 9.94 + / -0.02, 14.43 + / -0.02, 15.04 + / -0.02, 17.36 + / -0.02, 19.69 + / -0.02, 19.98 + / -0.02, 20.28 + / -0.02, 22.09 + / -0.02, 24.59 + / -0.02, 24.79 + / -0.02, 28.18 + / -0.02, 29.11 + / -0.02, 30.17 + / -0.02, 30.88 + / -0.02, 31.30 + / -0.02, 32.07 + / -0.02, 32.53 + / -0.02, 33.38 + / -0.02, 34.49
Owner:ZHUCHENG HAOTIAN PHARMA CO LTD

A mixed halide perovskite single crystal material and a method of making the same

The application belongs to the technical field of perovskite material preparation, and particularly discloses a mixed halogen perovskite single crystal material and a preparation method thereof. 2.8 I 0.2 The obtained single crystal is treated at 20 DEG C and 90% RH for 3-6 h, surface defects are systematically repaired by using the moisture-induced lattice expansion and surface hydroxyl passivation mechanism, ion migration is inhibited, and the phase separation phenomenon is slowed down. The process is simple, controllable, and reproducible, and is suitable for laboratory-scale preparation and industrialization promotion.
Owner:SUN YAT SEN UNIV

Extrusion die for cylindrical forged steel inside and outside reducing closing-up piece

The utility model relates to an extrusion die for a cylindrical forged steel inside and outside reducing closing-in piece. The die comprises a lower cushion block, a lower die, a lower punch, an upper punch and an upper die, an upper die inner hole is arranged in the upper die, the upper end of the upper punch is arranged in the upper die inner hole, the lower end of the upper punch is fixedly connected with the upper end of the lower punch, a lower die inner hole is arranged in the lower die, the lower end of the lower punch can be embedded in the lower die inner hole, and the lower cushion block is arranged at the bottom of the lower die inner hole. According to the utility model, the technical problems of low production efficiency, uncontrollable inner wall quality, poor concentricity, high production labor intensity and the like of the inner and outer diameter change of the cylindrical forged steel in the background technology are solved, and the yield and the working efficiency are improved.
Owner:CSIC NO 12 RES INST

Coating delivery pipe assembly for a zinc-aluminum coating line

The utility model relates to the technical field of paint delivery, disclose a paint delivery pipeline subassembly of zinc -aluminium coating production line, including feed pipe, the one end of feed pipe is provided with filter equipment, the filter equipment is used for filtering paint, the other end of filter equipment is provided with agitating unit, the agitating unit is used for making paint even, the filter equipment includes V -shaped tube, one end of V -shaped tube is linked with the one end of feed pipe, the bottom of V -shaped tube is provided with waste component, the inner wall of V -shaped tube is fixedly connected with fixed ring, the inner wall of fixed ring is rotatably connected with rotating component, one side of rotating component is provided with fixed component, in the utility model, filter the paint through the filter screen, intercept large particle, the filter screen rotates in the inner wall of fixed ring, the efficient use of filter screen, the filter screen is backflushed by nozzle, and the large particle blockage that falls along V -shaped tube to the lowest end and is discharged.
Owner:KUNSHAN WEITELI SURFACE TREATMENT EQUIP CO LTD

A winding mold based on a residual magnetic field iron core coil

The utility model belongs to winding equipment technical field relates to a winding mould based on residual magnetic field iron core coil. Including: encircle area module block, first limit area module block, second limit area module block and set up on encircle area module block's winding machine mounting hole, utilize winding machine mounting hole and assemble winding mould on manual winding machine, improved winding efficiency. Encircle area module block is the center of winding, provides stable basis for the encircle of enameled wire, through the restriction of first limit area module block and second limit area module block, cooperate encircle area module block to form winding space, and winding space and the outer contour of target iron core coil with winding are completely matched. The utility model can ensure that enameled wire closely adheres along the surface of iron core in winding process, ensure that enameled wire is wound within the prescribed range, guarantee that the shape and size of the wound coil meet the requirements. The utility model can meet the winding requirement of non-standard iron core, and improve the winding speed of non-standard iron core.
Owner:DATANG PUER NEW ENERGY CO LTD

Pickup truck compartment cover and manufacturing method thereof

The invention discloses a pickup truck compartment cover and a manufacturing method thereof.The pickup truck compartment cover comprises a plate body and a corner connector assembly, the plate body comprises a bottom cover and a surface cover, the surface cover and the bottom cover are arranged in a whole-surface fit mode, the bottom cover is made of hard plastic, and a main body of the surface cover is made of a carbon fiber material; the corner connector assembly is arranged on the side, away from the face cover, of the bottom cover and used for connecting the plate body to a vehicle body. The plate body of the pickup truck compartment cover is of the double-layer structure composed of the bottom cover body and the surface cover body, the inner-layer bottom cover body is made of the hard plastic, and the main body of the outer-layer surface cover body is made of the carbon fiber material, so that the overall mass of the plate body is small, and the plate body is convenient to install and carry; and the attractiveness of the surface of the compartment cover can be guaranteed for a long time.
Owner:SHENZHEN BOYANG AUTO ACCESSORY CO LTD 50

Gabion gabion retaining wall construction steel mould

The utility model relates to the technical field of gabion gabions, in particular to a gabion gabion retaining wall construction steel mould which comprises a gabion gabion net arranged on the inner side of a steel mould body, the section of the steel mould body is rectangular, and a movable assembly used for protecting the steel mould body is arranged on the inner side of the steel mould body. The movable assembly comprises movable vertical baffles arranged on the periphery of the inner side of the steel die body and a limiting ring body fixed to the top of the inner side of the steel die body, the four movable vertical baffles make contact with the periphery of the gabion cage net, and the tops of the movable vertical baffles make contact with the bottom of the limiting ring body. The operating platform has the advantages of being reasonable in structural design, easy to operate, good in stability, safe and controllable, solves the problems that an underwater stone loading operating platform is unstable and stone blocks are difficult to position, can improve stone loading efficiency of the gabion cage retaining wall, guarantees positioning and appearance of the gabion cage retaining wall, reduces construction difficulty, and reduces construction cost. And the construction time is greatly shortened, and the construction cost is reduced.
Owner:GUANGDONG WATER RESOURCES & HYDROPOWER CONSTR CO LTD

Large-load lightweight aircraft

ActiveCN116691997BClear force transmission pathImprove mobility
The application provides a large-load lightweight aircraft, which comprises a fuselage, wings and several tail wings at the tail of the fuselage, wherein the fuselage comprises a front fuselage part and a rear fuselage part which are fixed through a butt joint frame; the front fuselage part comprises a front fuselage inner frame and a front fuselage outer skin structure, and the rear fuselage part comprises a rear fuselage inner frame and a rear fuselage skin structure, two tail wing connecting heads are symmetrically installed on the rear fuselage inner frame; the wings comprise a wing main body and an aileron, the wing main body comprises a wing skeleton and a wing outer skin structure; the aileron comprises an aileron body and aileron rib boxes installed at both ends of the aileron body; the tail wing comprises a stabilizer provided with a mounting groove at the rear side, and a control surface is installed in the stabilizer mounting groove, and the control surface is driven by a transmission shaft. The application maximally utilizes composite materials for lightweight design, and metal materials are used for reinforcement at key stress positions, so that the light weight, the maneuvering performance, the aerodynamic performance, the durability and the service life are guaranteed.
Owner:TIANJIN ISTAR-SPACE TECH CO LTD

Compaction device for corrugated case board

The utility model relates to the technical field of compaction devices, in particular to a compaction device for corrugated case boards. Comprising a base and a compaction assembly, the compaction assembly comprises two frame plates, two upper compression rollers and two lower compression rollers are arranged between the two frame plates, fixed connecting plates and sliding connecting plates are arranged on the two frame plates, the two upper compression rollers are rotationally connected with the two sliding connecting plates, and the two lower compression rollers are rotationally connected with the two fixed connecting plates; the fixed connecting plate is fixedly arranged on the frame plate, and the sliding connecting plate is arranged on the frame plate in a sliding mode. Adjusting assemblies are arranged between the fixed connecting plates and the sliding connecting plates, synchronous driving assemblies are arranged on one sides of one fixed connecting plate and one sliding connecting plate, a conveying and preheating assembly is arranged on the top of the base, and the conveying and preheating assembly conveys and preheats corrugated carton boards. The utility model provides the compaction device for the corrugated carton board, which can realize twice compaction of the corrugated carton board, can reduce the increase of driving components, and can preheat the corrugated carton board before the corrugated carton board is compacted.
Owner:TIANJIN GUOYI PACKAGING CO LTD

Gear shaper cutter key cutting clamp

The utility model discloses a slotting cutter key cutting clamp which comprises a step-shaped mandrel, a positioning core portion is arranged at one end of the mandrel, a through groove is formed in the step face, close to the positioning core portion, of the mandrel, two first screw holes are further formed in the side, away from the positioning core portion, of the through groove, and two second screw holes are further formed in the side, away from the positioning core portion, of the through groove. The connecting line of the centers of the two first screw holes is parallel to the through groove, and the two first screw holes are symmetrically arranged. Second screw holes are further formed in the parts, on the two sides of the positioning core part, of the stepped face of the mandrel, and one second screw hole is located in the side, away from the through groove, of the first screw hole. A positioning block is arranged at the position, corresponding to the first screw holes, of the mandrel, and a pair of through holes are formed in the positioning block and correspond to the first screw holes one to one; a pressing plate is further arranged at the position, corresponding to each second screw hole, of the mandrel, and through holes are formed in the pressing plates and correspond to the second screw holes in a one-to-one mode; and the slotting cutter is completely positioned, so that the tolerance requirements of the shape and the position of the key slot can be ensured.
Owner:JIANGYIN SAITE PRECISION TOOL

Laminar flow cooling header device and laminar flow cooling system

The invention provides a laminar cooling header device. The laminar cooling header device comprises a first pipeline and a second pipeline, the branch pipe assembly comprises a plurality of branch pipe parts, the branch pipe parts are arranged in the extending direction of the first pipeline, each branch pipe part comprises a second pipeline and an electric control valve, the electric control valves are connected between the first pipeline and the second pipeline, and the electric control valves can be independently controlled; the protection assembly is arranged on the first pipeline, a containing cavity is defined by the protection assembly and the first pipeline, the electric control valve is located in the containing cavity, the second pipeline penetrates through the protection assembly, and the output end of the second pipeline is located outside the containing cavity. The electric control valve of each branch pipe part of the laminar cooling header device can regulate and control the conduction state of the corresponding second pipeline, and each electric control valve can be independently controlled, so that the distribution range of cooling water output by the laminar cooling header device can be regulated and controlled in the width direction of to-be-cooled strip steel, and the cooling efficiency of the to-be-cooled strip steel is improved. The temperature difference in the width direction of the to-be-cooled strip steel is conveniently reduced.
Owner:BEIJING SHOUGANG CO LTD +1

Film cutting, soil loosening, planting and fertilizing all-in-one machine for cassava seed stems

The invention relates to the technical field of cassava planting equipment, in particular to a film cutting, soil loosening, planting and fertilizing all-in-one machine for cassava seed stems. The device comprises a mounting vehicle body, damping assemblies are arranged at the bottoms of a plurality of supporting legs of the mounting vehicle body, moving wheels are arranged at the bottom of each damping assembly, an alternating assembly is arranged on the mounting vehicle body, and a plurality of lifting fixing assemblies are arranged on the alternating assembly. A film cutting assembly, a soil loosening and filling assembly, a discharging assembly and a fertilizing assembly are arranged at the bottoms of the lifting fixing assemblies respectively. Various functions of film cutting, soil loosening, planting, fertilizing and the like are integrated through the all-in-one machine, in the actual cassava planting process, various independent devices do not need to be used for different operations, the carrying and conversion operations of the devices are reduced, the planting efficiency is greatly improved, the all-in-one machine can continuously complete the operations according to the set process, and the labor intensity of workers is reduced. And time and labor cost are saved.
Owner:GUANGXI SUBTROPICAL CROPS RESEARCH INSTITUTE(GUANGXI SUBTROPICAL AGRICULTURAL PRODUCTS PROCESSING RESEARCH INSTITUTE)

Low-cost unmanned aerial vehicle airborne infrared temperature measurement lens

The invention discloses a low-cost unmanned aerial vehicle airborne infrared temperature measurement lens which comprises a front fixing group and a focusing group which are sequentially arranged from the object side to the eye side. The focal power of the front fixing group is positive; the focal power of the focusing group is negative; a first lens L1 is accommodated in the front fixed group; a second lens L2 is accommodated in the focusing group; the first lens L1 is a positive meniscus lens; the second lens L2 is a biconvex lens; the first lens rear surface S2, the second lens front surface S3 and the second lens rear surface S4 are all aspheric surfaces. The lens is stable in transmission, compact in mechanism and convenient to assemble, and has high imaging quality and high spatial resolution of MTF (on-axis (at) 40lp / mm) greater than or equal to 0.5.
Owner:YUNNAN KIRO CH PHOTONICS