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32results about How to "Reduce compression deformation" patented technology

Continuous flexible reinforced adhesion-type composite tube

The invention relates to a composite tube used for an oil field, in particular to a continuous flexible reinforced adhesion-type composite tube. The composite tube comprises a lining layer, an anti-permeation layer, a compression-resistive reinforced layer, a tensile reinforced layer and an outer protective bush layer. The composite tube is characterized in that the anti-permeation layer, the compression-resistive reinforced layer, the tensile reinforced layer and the outer protective bush layer are sequentially arranged on the outer surface of the lining layer; a power line and a control module are arranged on the outer surface of the tensile reinforced layer. The composite tube has the advantages that the adhesion-type structure is good in integrality, the anti-permeation capacity is high, and ring stiffness and an axial tensile property are good; the composite tube can bear high pressure and is small in deformation caused by pressing, allows local heating, further has quite high functions of information collecting and monitoring alarming, and is convenient to use, suitable for delivering water, natural gas, petroleum oil and others from a long distance and particularly suitable for deeply passing through roads, villages and other working conditions that the composite tube can not be laid through ditching at a long distance.
Owner:康红艳 +1

Packaging method for automobile three-way catalyst converter

The invention relates to the field of manufacturing of automobile three-way catalyst converters, in particular to a packaging method for an automobile three-way catalyst converter. The method includes the following steps that a purifying agent layer is formed on a honeycomb-shaped carrier; the carrier with the purifying agent layer is calcinated for 1 hour to 2 hours at the temperature ranging from 400 DEG C to 600 DEG C and then cooled in the environment with the temperature ranging from 0 DEG C to 4 DEG C; the carrier with the purifying agent layer is placed in a half of a catalyst converter shell, two halves of the structure of the catalyst converter shell are combined, a certain distance is reserved between the carrier with the purifying agent layer and the inner wall of the catalyst converter shell, and a locating board is pressed downwards, so that the inner wall and the outer wall of the catalyst converter shell are compressed, and the carrier with the purifying agent layer is attached to the inner wall of the catalyst converter shell. By the adoption of the method, the carrier with the purifying agent layer can be conveniently installed and detached, and the stressed deformation of the carrier with the purifying agent layer is reduced; and a purifying agent of specific components is adopted and smeared layer by layer, so that the catalysis effect is improved.
Owner:SUZHOU LIANCHI ENVIRONMENTAL SCI & TECH DEV CO LTD

Anode structure for short-arc xenon-mercury lamp

The invention discloses an anode structure for a short-arc xenon-mercury lamp and belongs to the technical field of xenon-mercury lamps; technical key points of the anode structure are that the anodestructure comprises a cylindrical body which consists of a circular platform part, a heat dissipation part, an auxiliary heat dissipation support part and a support inverted circular platform part that are sequentially arranged from the top to the bottom. The outer diameter of a lower end of the circular platform part is the same as the outer diameter of the heat dissipating part; the outer diameter of the heat dissipating part is smaller than the outer diameter of the auxiliary heat dissipation support part by 0.4-0.8 mm; the ratio of the total height of the circular platform part and the heat dissipation part to the total height of the auxiliary heat dissipation support part and the support inverted circular platform part is 1:1.2-1.4; a number of first annular heat dissipation grooves are evenly distributed on an outer wall of the heat dissipation part in a spaced manner along the axial direction. All of the first annular heat-dissipation grooves are circumferentially arranged alongthe heat dissipation part. The present invention is aim at providing the anode structure for the short-arc xenon-mercury lamp, the anode structure is reasonable in structure, high in strength and reasonable in heat-dissipating effect; the anode structure is used for the mercury-xenon lamp.
Owner:MEIZHOU LIANGRUZHOU TECH CO LTD

Oblique pressing ball type movable plier mechanism of flat tongs

PendingCN113183052AGuaranteed not to floatMeet the needs of high-precision machiningClampsSteel ballScrew thread
The invention discloses an oblique pressing ball type movable plier mechanism of flat tongs. The oblique pressing ball type movable pliers mechanism is characterized in that the lower end face of a movable plier body is connected to the upper end face of a flat tongs body in a linear sliding mode, a jaw is fixed to the front end face of the movable plier body, an inclined pressing block mounting groove is reserved in the middle of the movable plier body, a clamping plate is fixed to the rear end of the movable plier body, and a baffle is fixed to the rear end of the clamping plate; a lead screw is in threaded connection in a threaded hole I of a supporting seat of the flat tongs, and after the front end part of the lead screw penetrates through a via hole of the baffle, the head part of the lead screw abuts against the rear end face of an L-shaped inclined pressing block; the L-shaped inclined pressing block is arranged in the inclined pressing block mounting groove, the lower end face of the L-shaped inclined pressing block is connected into a T-shaped groove of the flat tongs body in a linear sliding mode, and the upper end face of an inner clamping opening of the L-shaped inclined pressing block is an inclined face; and at least more than 1/2 of the part of a steel ball is tightly assembled in a steel ball accommodating hole formed in the front end wall of the inclined pressing block mounting groove of the movable plier body, and the inclined face of the L-shaped inclined pressing block is pressed at the upper end of the rear end of the steel ball. The oblique pressing ball type movable plier mechanism of flat tongs is low in cost and easy to machine; and the flat tongs adopting the oblique pressing ball type movable plier mechanism are accurate in positioning, high in positioning precision and good in stability.
Owner:河北昊特机械配件加工有限责任公司

Radial static pressure balance floating type gear pump

PendingCN113931838AReduced outer surface areaImprove floating characteristicsRotary piston pumpsRotary piston liquid enginesGear pumpGear wheel
The invention relates to a radial static pressure balance floating type gear pump which comprises an upper plate, a middle plate, a lower plate, a driving gear shaft, a driven gear shaft and floating shaft sleeves, wherein the driving gear shaft, the driven gear shaft and the floating shaft sleeve are located in a cavity of the middle plate, the two sides of the middle plate are fixedly connected with the upper plate and the lower plate respectively, the upper plate is provided with a connector and a blanking cap, and gears on the driving gear shaft and the driven gear shaft are meshed with each other. The driving gear shaft and the driven gear shaft are mounted in the floating shaft sleeves at the two ends; each floating shaft sleeve is 8-shaped and comprises two symmetrical circular arc bodies, and the circular arc radius of the middle part of each circular arc body is smaller than the circular arc radiuses of the two sides; two sides of each circular arc body are respectively provided with a first groove and a second groove which have the same radius as the middle circular arc, the length of the first groove is the same as that of the circular arcs on two sides of the circular arc body, and two end areas are communicated; and the length of the second groove is smaller than the circular-arc length of the two sides of each circular arc body; one end of the second groove is communicated with the middle part of the circular arc body. The volume efficiency of the gear pump can be remarkably improved, and oil leakage of the gear pump is reduced.
Owner:JIANGSU JINLING INST OF INTELLIGENT MFG CO LTD

hand driven screwdriver

The invention relates to the field of mechanical disassembling tools, in particular to a grip drive type screwdriver. The grip drive type screwdriver comprises a holder and a toolbar. The toolbar is rotationally assembled on the holder, racks are radially assembled on the holder, unidirectional transmission wheels which correspond to the racks are assembled on the toolbar and include a forward transmission wheel and a reverse transmission wheel, the forward transmission wheel and the reverse transmission wheel are axially arranged along the toolbar, a transmission direction of the forward transmission wheel is opposite to a transmission direction of the reverse transmission wheel, and when one of the forward transmission wheel and the reverse transmission wheel is meshed with the corresponding rack, the other transmission wheel and the rack corresponding to the other transmission wheel are axially staggered from each other along the toolbar. The grip drive type screwdriver has the advantages that a user only needs to grip the holder by a hand when using the screwdriver, the toolbar axially relatively moves, and the turning direction of the toolbar can be changed, so that a head of the toolbar does not need to be changed when screws are screwed down of screwed off, and the grip drive type screwdriver is quite convenient.
Owner:HENAN UNIV OF SCI & TECH

A kind of manufacturing method of composite ceramic closed impeller containing metal skeleton

The invention discloses a manufacturing method of a composite ceramic closed impeller containing a metal framework, and belongs to the field of application of impeller wear-resistant protective coatings. The manufacturing method comprises the first step of preparation of an impeller framework, the second step of preparation of an outer diameter mold and a foaming core mold, the third step of impeller mold combining and assembling operation, the fourth step of pouring equipment connection, the fifth step of pouring material preparation, the sixth step of pouring material vacuumizing operation,the seventh step of material pouring, the eighth step of pouring material curing operation, the ninth step of mold disassembling operation and the tenth step of detail polishing operation. The vacuumizing step is carried out in the pouring material mixing process, and entrained bubbles in the pouring materials are removed before the material pouring. The two sections of processes of heating and curing are carried out after material pouring is finished, the operation difficulty of the material pouring process is reduced, waste material cleaning work is convenient, the personnel shift of the production section can be reasonably arranged, and the manufacturing method has the comprehensive advantages of simple design, stability, reliability, excellent quality and cost economy.
Owner:上海邦聚工程材料技术有限公司

A mortise and tenon joint of wood structure reinforced by tenon shallow layer planting reinforcement

The invention provides a tenon shallow embedded steel bar reinforced wood-structured mortise-tenon joint, and belongs to the technical field of architectural structure engineering. The wood-structured mortise-tenon joint comprises a wood column, a wood beam and reinforcements; the wood column and the wood beam are in mortise-tenon connection through a mode of inserting a tenon of the wood beam in a mortise of the wood column; a row of holes parallel to the wood pattern direction is respectively drilled in the upper and lower surfaces of the tenon of the wood beam; the reinforcements are respectively put in the holes; and structural gluing agents are injected in all the holes to firmly bond the reinforcements with the tenon of the wood beam. The transverse pattern compression bearing capacity and rigidity on the surface layer of the tenon can be improved; the pressed deformation of the surface layer of the tenon is reduced; the embedded reinforcements can resist the pull and pressure stress of the tenon, improve the flexural capacity and the rigidity of the tenon, and improve overall bearing capacity and rigidity of the mortise-tenon joint; the building appearance is not influenced; and the construction is simple and convenient.
Owner:INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY

Arrangement structure for PHC tubular pile shear test

The invention discloses an arrangement structure for a PHC tubular pile shear test. The arrangement structure comprises a PHC tubular pile for a test, two inner clamping type support seats, two outerclamping type support seats, a distribution beam and two piers. The PHC tubular pile for the test is horizontally arranged; the two inner clamping type support seats and the two outer clamping type support seats are symmetrically arranged at a position 0.5m away from the two sides of the length center of the PHC tubular pile for the test and the position 0.5m+ shear span B away from the two sidesof the length center of the PHC tubular pile for the test. The distribution beam is arranged on the top surfaces of the two inner clamping type support seats; and the two piers are arranged on the bottom surfaces of the two outer clamping type support seats. The inner clamping type support seats and the outer clamping type support seats are the same in structure and comprise upper half clamping seats, lower half clamping seats and two connecting screw rods. And the two connecting screw rods enable the upper half clamping seats and the lower half clamping seats to tightly hold the PHC tubular pile for the test through an upper nut and a lower nut respectively. According to the structure, a damage mode of the PHC tubular pile in a shear test can be closer to oblique pressure damage or shearpressure damage, and a result of an anti-cracking shear force is more reasonable.
Owner:CCCC THIRD HARBOR ENG

Grip drive type screwdriver

The invention relates to the field of mechanical disassembling tools, in particular to a grip drive type screwdriver. The grip drive type screwdriver comprises a holder and a toolbar. The toolbar is rotationally assembled on the holder, racks are radially assembled on the holder, unidirectional transmission wheels which correspond to the racks are assembled on the toolbar and include a forward transmission wheel and a reverse transmission wheel, the forward transmission wheel and the reverse transmission wheel are axially arranged along the toolbar, a transmission direction of the forward transmission wheel is opposite to a transmission direction of the reverse transmission wheel, and when one of the forward transmission wheel and the reverse transmission wheel is meshed with the corresponding rack, the other transmission wheel and the rack corresponding to the other transmission wheel are axially staggered from each other along the toolbar. The grip drive type screwdriver has the advantages that a user only needs to grip the holder by a hand when using the screwdriver, the toolbar axially relatively moves, and the turning direction of the toolbar can be changed, so that a head of the toolbar does not need to be changed when screws are screwed down of screwed off, and the grip drive type screwdriver is quite convenient.
Owner:HENAN UNIV OF SCI & TECH

Multi-strand coil spring continuous coil spring device

ActiveCN104550565BMeet continuous coil spring requirementsIncrease productivityRadial positionCoil spring
A multi-strand spiral spring continuous spring coiling device comprises a machine frame; a spring coiling device which is used for manufacturing a steel cable roll into a plurality of strands of spiral springs and a traction push device which is used for pushing steel cables to the spring coiling device are arranged on the machine frame; the spring coiling device comprises a spring coiling supporting base which is fixedly installed on the machine frame; the spring coiling supporting base is provided with a spring winding shaft which is matched with the spring coiling supporting base in a rotary mode and a spring coiling driving mechanism which is used for driving the spring wind shaft to rotate; the periphery of the spring winding shaft is provided with a plurality of spring winding rollers which are used for limiting the steel cable and winding the cable on the spring winding shaft in a spiral mode; the spring coiling supporting base is provided with a spring winding roller radial position adjusting mechanism which is used for adjusting radial position of the spring winding shaft and a spring winding roller axial position adjusting mechanism which is used for adjusting the axial spring winding roller position of the spring winding shaft. The multi-strand spiral spring continuous spring coiling device has the advantages of satisfying the rolling machining requirement of multi-strand spiral springs and being high in production efficiency, high in machining accuracy and high in automatic degree.
Owner:CHONGQING UNIV
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