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100results about How to "Guaranteed to last" patented technology

Electromagnetic controllable mechanical brake parking device

The invention relates to an electromagnetic controllable mechanical brake parking device which comprises action arms, an action arm installation seat, cylindrical compression springs, electromagnetic iron components and abrasion pieces. Two action arms are respectively connected on an upper end and a lower end of the action arm installation seat in a rotation mode, the cylindrical compression springs are arranged between the two action arms, two ends of each cylindrical compression spring are connected with the action arms on the upper side and the lower side respectively, the electromagnetic iron components are arranged inside the cylindrical compression springs and connected with the action arms on the upper side and the lower side, and two abrasion pieces are respectively arranged at the other end of each action arm. Compared with the prior art, electricity amount of the electromagnetic iron components is controlled to control frictional force among the abrasion pieces and a steel rail so as to achieve braking or parking of a vehicle, the abrasion pieces are compressed on the steel rail, most thermal load is born by the steel rail, the position of the vehicle is continuously moved, heat generated by the braking is rapidly dissipated on the steel rail, and the electromagnetic controllable mechanical brake parking device is suitable for being used for continuously-implemented brake of the vehicle on long-distance downhill.
Owner:TONGJI UNIV

High-power three-phase brushless direct-current motor control module and packaging of control module

The invention provides a three-phase brushless direct-current motor integrated circuit module integrating power, driving and control into a whole, which is used for the speed or torque control of fans, water pumps, cranes, medical devices, electric automobiles and various large, medium and small brushless direct-current motors. The three-phase brushless direct-current motor integrated circuit module comprises a logic control circuit, a power element driving circuit, power elements and an over-temperature, over-current and overvoltage protection circuit. The invention also provides a packaging method of the module, comprising a metal printed circuit board, power elements, PCBs (Printed Circuit Boards), power output pins, control pins, a plastic shell and pressing rings. The packaging method is characterized in that the metal printed circuit board is a base plate of the whole module, and the power elements are welded on the metal base plate by soldering tins and connected with the control and drive PCBs. The power output pins and the control pins are respectively welded on the PCBs by the soldering tins and penetrate through the plastic shell to form external pins of the module, and the plastic shell is pressed into the metal printed circuit base plate through the tight fit by the pressing rings for being fixed. The all pins of the module are sealed together with the plastic shell through packaging resin.
Owner:BEIJING AEROSPACE WANFANG TECH

Sodium dichlorophenolate micro-pill pharmaceutical preparation and preparation method thereof

The invention relates to the pharmaceutical preparation field and in particular to a sodium dichlorophenolate micro-pill pharmaceutical preparation and a preparation method thereof. The micro-pill pharmaceutical preparation is prepared by micro-pills, which is characterized in that the micro-pill is of enteric slow-release micro-pill, the micro-pill consists of a hollow pill core, an active layer and an outer layer lagging cover, the active layer comprises sodium dichlorophenolate, a binding-property slow-release material and a binding-property enteric material, and the outer layer comprises a slow-release material. With the particular process and formula, a release system thereof is made into a unique double slow-release system, i.e. a skeleton-type scattering system is combined with a multi-layer semi-penetration film lagging cover system, so the main medicine can be continuously and stably released in the complicated internal environment of the human body. In addition, by adopting unique auxiliary materials, the micro-pill is free from being dissolved in the stomach and almost has no harm on the gastric mucosa, the medicine is ensured to have continuous effect of 24 hours inside the intestinal tract, the bioavailability is improved, and the application effect of the medicine is ensured.
Owner:HANGZHOU SHARPLY PHARM R&D INSTIT +1

Graphite dust collector

The invention provides a graphite dust collector which comprises an atomizer, a chip liquid pump, a chip liquid filtering screen, a dust absorption cover and a water-bath-type filter, wherein the atomizer is connected with the chip liquid pump; the chip liquid pump is connected with the chip liquid filtering screen through a chip liquid pipe; the chip liquid filtering screen intrudes into a chip liquid box; the dust absorption cover is internally provided with a common filtering screen and a magnetized filtering screen respectively, and is connected with the air intake end of an axial-flow-type fan; the water-bath-type filter is connected with the air exhaust end of the axial-flow-type fan, and intrudes into the chip liquid box; the atomizer atomizes and sprays out a high-pressure chip liquid, and the atomized chip liquid captures graphite dust in air; the dust absorption cover absorbs the captured atomized chip liquid and filters twice; the atomized chip liquid is filtered by the water-bath-type filter, and clean air is exhausted; and the chip liquid by the filtering screen arranged in the chip liquid box is subjected to secondary filtering, and then enters the chip liquid pump so as to form circulation. Visibly, the device captures the graphite dust generated during a ball graphite cast iron machining process through the atomized chip liquid, and achieves a dust collection effect through water bath filtration.
Owner:ANHUI UNIV OF SCI & TECH

Preparation method of high-performance composite carbon felt

The invention discloses a preparation method of a high-performance composite carbon felt, and particularly relates to the technical field of fiber products. The preparation method comprises the specific steps of material cleaning, PAN (polyacrylonitrile) precursor preparation, pre-oxidation, carbonization, graphitization, surface treatment and coating treatment. According to the invention, a material cleaning step is added to the composite carbon felt process, impurities in the finished carbon felt can be effectively eliminated from the source, and the influence of the impurities upon the quality of the finished carbon felt is prevented; polyacrylonitrile is dissolved using n-butyl alcohol, the characteristics of the carbon fiber and the carbon felt of the subsequent branch are ensured accordingly, the parts of the carbon felt are stressed uniformly so that the fracture caused by uneven stress at impurity positions in the traditional process is avoided, the stretching effect of the finished carbon felt in the using process is effectively improved, and the service life of the carbon felt is ensured; volatilized n-butyl alcohol vapor can be liquefied again after being cooled for secondary use, and therefore, the production cost of a manufacturer is guaranteed.
Owner:DATONG XINCHENG NEW MATERIAL CO LTD

Novel injection oil cylinder apparatus of injection molding machine

The invention relates to a novel injection oil cylinder apparatus of an injection molding machine. The apparatus comprises a rubber injection head plate, an injection piston rod, an injection piston end cover, an injection seat, an injection piston, an injection oil cylinder, injection pull rods, an injection oil cylinder bottom, injection oil cylinder pull rods, an injection oil cylinder cover and a material storage cylinder body. The apparatus is characterized in that the material storage cylinder body is fixed to the rubber injection head plate through a hole, the injection oil cylinder cover is fixed to one end of the injection oil cylinder body and is fixed to the injection seat through the injection oil cylinder pull rods, the other end of the injection oil cylinder body is fixed to the injection oil cylinder bottom, the rubber injection head plate and the injection oily cylinder bottom are respectively fixed to two ends of four injection pull rods, the injection piston moves between the injection oil cylinder cover and the injection oil cylinder bottom, one end of the injection piston end cover is fixed to the injection piston, the other end is fixed to the injection piston rod, and the injection piston rods, the injection piston end cover, the injection piston and the injection oil cylinder body are in a same axis. The novel injection oil cylinder apparatus has the advantages of simple and effective structure, installation convenience and low price.
Owner:BORCH MACHINERY

Fast cage type tobacco clamp for bulk curing barn

The invention provides a fast cage type tobacco clamp for a bulk curing barn. A technical scheme of the invention is as follows: a support frame is arranged on two ends of an L-shaped bracket, a movable cover is connected with the L-shaped bracket through a hinge such that the movable cover can rotate, the movable cover after folded is tightly clung on the support frame, contact pins are respectively lapped on lower edges of square holes of the L-shaped bracket and the movable cover after a tobacco fork is inserted, and the tobacco fork and the movable cover are stably clamped on the support frame by using a clip. According to the fast cage type tobacco clamp disclosed by the invention, the tobacco loading efficiency can be largely increased, links of roasting tobacco leaves and technical complexity can be reduced, the labor saving effect is remarkable, and tobacco growers can get rid of complex tobacco weaving links; in addition, the difficulties of poor roasting effect of the prior tobacco clamp and complex and short-life structure of the tobacco clamp are solved at the same time; and when the fast cage type tobacco clamp is matched with a bulk curing barn for use, the volume and the roasting capability of the bulk curing barn can be increased on the premise of ensuring the roasting quality, which is very important to expanding planting scale of each family and factory and professional roasting.
Owner:中国烟草总公司广西壮族自治区公司

Heat-preservation and heat-insulation carbon felt and preparation method thereof

The invention provides a heat-preservation and heat-insulation carbon felt and a preparation method thereof, and relates to the technical field of thermal insulation material preparation. According to the heat-preservation and heat-insulation carbon felt and the preparation method thereof, the heat-preservation and heat-insulation carbon felt is composed of expandable A-stage phenolic resin with the carbon residue amount of 36-88%, a surfactant, a foaming agent, a curing agent, carbon fibers, self-adhesive pre-oxidized fibers, thermosetting resin fibers, carbon fiber precursor thermoplastic resin fibers and other materials. The heat-preservation and heat-insulation carbon felt is characterized by being prepared from the following materials in parts by mass of 30-90 parts of expandable A-stage phenolic resin with the carbon residue content of 36-88%, 2-6 parts of the surfactant, 4-10 parts of the foaming agent, 10-25 parts of the curing agent, 25-70 parts of carbon fibers, 0-40 parts of self-adhesive pre-oxidized fibers, 10-30 parts of thermosetting resin fibers and 10-35 parts of carbon fiber precursor thermoplastic resin fibers. According to the heat-preservation and heat-insulation carbon felt and the preparation method thereof provided by the invention, the preparation process is simpler and more environment-friendly, and the prepared carbon felt has better heat-preservation and heat-insulation performance, better quality and higher cost performance.
Owner:上海瑟赫新材料科技有限公司

Multi-fault protecting/recovering method and system in electric power optical fiber communication network

The invention provides a multi-fault protecting/recovering method and system in an electric power optical fiber communication network. The method comprises the following steps that network topological information, service demand information and link information are obtained; the survivability priority level of given service is determined according to the service level and the service protecting and protecting requirement in the service demand information; according to the network topological information and the link information, M:N source-destination node pairs are established; when the fact that multiple faults happen in the electric power optical fiber communication network is detected, whether the pre-established M:N source-destination node pairs can protect a link in which the multiple faults happen is judged; if not, service with higher survivability priority level is protected/recovered preferentially. The method and system guarantee the survivability of the electric power optical fiber communication network during major natural disasters, the continuous and reliable communication ability of the electric power optical fiber communication network is guaranteed, the fault risk resisting ability of electric power optical fiber communication network protection is enhanced, and the property safety of an electric power system is protected.
Owner:POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD +1

Device for detecting static and dynamic strength of automobile transmission bearing

The invention discloses a device for detecting the static and dynamic strength of an automobile transmission bearing. Both sides of a test chamber in a front-rear direction are radially provided withradially loaded electric cylinders and lubricating oil heating devices, and the output shafts of the radially loaded electric cylinders are connected with a radial loading device, and the oil outletsof the lubricating oil heating devices are connected with an oil inlet of the test chamber through an insulating oil pipe. The oil outlet of the test chamber is in series connection with a first refrigerator through an oil pipe, and then is connected with oil return ports of the lubricating oil heating devices. Electric main shafts and the radially loaded electric cylinders are respectively arranged at both sides of the test chamber in the left and right direction. The output shafts of the electric main shafts are connected with the test shaft through a shaft coupler, and the output shafts ofthe axially loaded electric cylinders are connected with the axial loading devices. The device can simulate the transmission oil temperature, can control temperature and flow rate and has the functionof displaying flow at all times. The device realizes the detection of the load strength of the bearing of the automobile transmission under the static condition and the dynamic strength detection ofthe high-temperature dynamic rotation. The detection result is accurate and reliable and the detection efficiency is high.
Owner:CHONGQING CHANGJIANG BEARING

Biomass carbonization burner

The invention provides a biomass carbonization burner, which comprises a first carbonization furnace and a second carbonization furnace, wherein a purifier is communicated between the first and second carbonization furnaces through a pipeline; an inner cavity of the purifier is communicated with the upper part of an inner cavity of the first carbonization furnace through a first pipeline, is communicated with the upper part of an inner cavity of the second carbonization furnace through an eighth pipeline, and is communicated with a first burning chamber through a second pipeline; the inner upper part of the first burning chamber is communicated with the lower part of the inner cavity of the second carbonization furnace sequentially through a fourth pipeline and a ninth pipeline, and is communicated with the lower part of the inner cavity of the first carbonization furnace sequentially through the fourth pipeline and a sixth pipeline; the inner upper part of the first carbonization furnace is further communicated with a first dust removal device through a third pipeline; the dust removal device is further communicated with the upper part of the inner cavity of the second carbonization furnace. According to the biomass carbonization burner, atmospheric pollution caused by emission of wood gas can be avoided, the carbonization furnaces can also be heated by virtue of heat energy generated by burning of the wood gas, and in addition, the technical problem of blockage of various pipelines by wood tar is solved.
Owner:雷连净

Anticollision remote control parking spot lock

InactiveCN102518330ARealize the effect of opening and closingReduce consumptionTransmission systemsParkingsRemote controlEngineering
The invention discloses an anticollision remote control parking spot lock which comprises a bottom plate and a direct current motor positive and negative rotation wireless remote control device, wherein a U-shaped bracket and a square bracket are fixed on the bottom plate; one side wall of the U-shaped bracket is next to one side wall of the square bracket; a supporting pipe is inserted between two opposite side walls of the U-shaped bracket; the bottom end of the supporting pipe is connected with the U-shaped bracket through a rotating hinge pin; the upper end of the supporting pipe is fixedly connected with an elastic anticollision plate; one end of the rotating hinge pin runs through the U-shaped bracket and the square bracket to form a cantilever shaft section; a wafer is fixed on the cantilever shaft section through a jack screw; a direct current motor is arranged outside the square bracket; the output end of the direct current motor is connected with a worm supported in the square bracket; and a worm gear meshed with the worm is fixedly connected on a shaft section on the rotating hinge pin, which is positioned in the square bracket. The anticollision remote control parking spot lock has simple structure, is convenient to operate and has an anticollision function. A user can realize random parking of a vehicle without going out of the vehicle.
Owner:TIANJIN CHULIAN TECH DEV

Y-type connector for new and old structures in added stories of low-storey buildings and construction method thereof

InactiveCN102127933ATroubleshoot technical issues with connectivityOvercoming pollutionBuilding repairsEngineering
The invention provides a Y-shaped connector for new and old structures in added stories of low-storey buildings and a construction method thereof. The two ends of the Y-shaped connector are respectively connected with the two adjacent building structures. The Y-shaped connector is characterized in that the Y-shaped connector comprises a convex part made of steel and a concave part made of steel; the convex part is a convex head connected with a slab seat; the convex head is shaped like dovetail and is similar to Y shape; the Y-shaped convex head extends from the center of the slab seat and is connected with the slab seat into a whole; the concave part is a groove body connected with the slab seat; the inside of the groove body is shaped like a dovetailed groove corresponding to the Y-shaped convex head; and the groove body extends from the center of the slab seat and is connected with the slab seat into a whole. The Y-shaped connector has the following beneficial effects: the connecting device can fix the displacement and rigidity in the four horizontal directions and can ensure the new and old buildings to mutually slide in the vertical settlement direction, thus ensuring the new and old buildings not to deform during differential settlement and effectively improving the rigidity and aseismatic intensity of the whole building; and the Y-shaped connector can be widely applied to the story adding projects of the new and old buildings.
Owner:刘成建
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