65results about How to "Improve load carrying capacity" patented technology

The invention discloses a method and device for using tiny coal powder as reiguition fuel to reduce the NOX, which belongs to coal powder cleaning and combusting field. The method is: uses separator of raw and tiny coal powder to decrease the thin rate of all coal powder and improve the homogeneity, and uses part of tiny coal powder as reiguition fuel, extracts part of smoke form the tail smoke channel and then transmits the reiguition fuel into the reacting area, the NOX generated in the primary combustion area into N2; pours in part of combustion air from the top of the reacting area, ensures the coal powder combustion safety. The invention can decrease the discharge of nitrogen-oxygen material for 60% based on guaranteeing the boiler efficiency. In order to realize the technology, the primary combustor on the furnace is arranged with a reiguition fuel, burned wind aperture, and assembled with advanced raw powder separator and smoke extracting and transmitting system. The method in the invention has high denitration efficiency, it does not affect the combustion efficiency, the structure is reasonable, the investment is little, and the running cost is low.

The invention relates to a preparation method of nitrogen and oxygen in-situ codoped porous carbon electrode material and an application thereof. The nitrogen and oxygen in-situ codoped porous carbon electrode material is excellent in conductivity, great in chemical stability, three-dimensional and abundant in pore channels. An animal bone, such as an ox bone, a swine bone and a goat bone, is adopted to act as a carbon precursor. The organic component of collagen in the bone acts as a carbon and nitrogen source, and the inorganic component acts as a natural template to act as supporting material in the carbonization process and a pore channel regulating structure for controlling change and size of hydroxyapatite crystals so that the material is prepared. The porous carbon electrode material is abundant and prosperous in pore structures and has micropores, mesopores and macropores with the specific surface of being 1000-3000m<2>g<-1> so that the porous carbon electrode material can be used as supercapacitor electrode material.

This invention discloses one kind of belt ferromagnetism decoration face brick, including the face brick substrate, the respective face brick base in vivo establishment has the high energy magnetism to receive the carrier. This invention in the retention ordinary inner wall decoration face brick decoration foundation, increased the face brick in the wall surface direct fixed thing load bearing function, uses this invention user to be allowed completes after the repair, with wishes fulfilled changes some goods in the wall surface stationary position, or in some new position fixed new thing, like this already cannot after change the stationary position the wall surface residual fastener but the rigid wall surface overall impression, also does not have or installs the new goods for some object change stationary position but reto construct, the use is extremely simple, convenient; This invention function effect good, use safe reliable, may use in directly again but sees the thin shape goods to 4 kilograms (including each kind of wall mirror, wall lamp, mural and so on) fixed, has the structure simply, manufacture convenient, production cost low, applicable scope broad, the economic efficiency is high, market prospect good merit.

The invention discloses a water spray cooling method of a low-pressure exhaust hood of an air-cooling steam turbine. When an airscrew runs under a conventional back-pressure condition that the temperature of condensation water is lower than the temperature of exhaust steam, the exhaust steam in the low-pressure exhaust hood is sprayed with the condensation water; when the airscrew runs under a high back-pressure condition that the temperature of the condensation water is higher than the temperature of the exhaust steam, the condensation water is firstly cooled by exhaust water from an outlet of an lubricating oil cooler to lower the temperature of the condensation water, and then the exhaust steam in the low-pressure exhaust hood is sprayed with the condensation water of which the temperature is lowered.

The invention discloses a displacement ventilation air conditioner room air supply device and method. The air supply device comprises an air supply system, an air supply opening is formed in the lowerportion of the side wall of an air conditioner room, and an air return opening is formed in the top of the air conditioner room; and the air supply system comprises an axial flow fan and an air supply nozzle, the axial flow fan comprises an axial flow fan motor, the air supply nozzle is connected with the axial flow fan through a spiral hose and a straight pipe which is connected with the spiralhose, and a wind speed and air volume adjusting valve is arranged on the straight pipe. The displacement ventilation air conditioner room air supply method comprises the following steps that 1, freshair is sent into the air conditioner room from the air supply opening to form a fresh air layer; and 2, the fresh air in the fresh air layer enters the air supply system under the suction effect of the axial flow fan and is sent out by the air supply nozzle. According to the displacement ventilation air conditioner room air supply device and method, acting areas can be adjusted freely along with changes of room division or positions of an indoor table / working table, the action range is flexible, a comfortable and healthy hot environment can be created for indoor personnel at a higher room background temperature, and the energy consumption of an air conditioner is effectively saved.

The invention discloses a while-drilling casing pile side sectional high-pressure grouting system and method. The grouting system comprises a prestress concrete tube pile, an upper end socket plate, a lower end socket plate, a grouting tube, a reserved tube and a baffle control structure, wherein the upper end socket plate and the lower end socket plate are arranged at the two ends of the prestress concrete tube pile. The upper end socket plate and the adjacent lower end socket plate are connected in a welded mode, and the upper end socket plate and the lower end socket plate are provided with connecting grooves which are formed in the radial direction of the prestress concrete tube pile and stretch out of the outer wall. A plurality of sealing baffles are movably arranged at the circumferential edge of the upper end socket plate. The grouting tube is inserted into the reserved tube. The grouting tube is provided with a grout outlet communicated with the connecting grooves. A plurality of through holes are formed in each of the upper end socket plate and the lower end socket plate. By means of the while-drilling casing pile side sectional high-pressure grouting system and method, high-pressure grouting is achieved, grout can enter peripheral rock and soil more deeply in a seepage or compaction or separation mode, a pile body and the periphery rock and soil are bonded, the friction resistance on the pile side is remarkably increased, and the bearing performance of the while-drilling casing pile is further improved.

A telescopic guardrail for mounting comprises a horizontal movable pipe (1) and toe guards (2), a pair of telescopic columns (3) is arranged among the horizontal movable pipe (1) and the toe guards (2), a horizontal guardrail fixing plate (10) is mounted between the telescopic columns (3), guardrail mounting plates (5) are arranged on the lower portions of the toe guards (2), and a plug pin (12) is arranged on the horizontal guardrail fixing plate (10) through a rope (11). The horizontal movable pipe (1) is 285mm in length, the distance between each toe guard (2) and the center of the horizontal guardrail fixing plate (10) is 465mm, and the guardrail mounting plates (5) are 100mm in width. By mounting of the guardrail, telescopic columns of an elevator can be ineffectively improved, and a load bearing function of the elevator is improved.

The invention discloses a continuous tube cable with a steel wire for load bearing. The continuous tube cable comprises a center steel wire rope, wherein at least two layers of copper conductors are arranged around the center steel wire rope; the centers of the copper conductors overlap with the axis of the center steel wire rope; a first waterproof insulating layer coats each copper conductor; a second waterproof insulating layer coats the axial outer side surfaces of the outermost layer of copper conductor; and a continuous oil tube sleeves the outer side surface of the second waterproof insulating layer. The steel wire for load bearing is arranged at the internal center position of a multi-core cable, the multi-core copper conductors surround the periphery of the steel wire rope, the steel wire has the characteristic of high strength due to the weight of the load-bearing cable with the center steel wire, and the ability of the cable for bearing a mechanical load is improved, so that a longer tube cable can be produced, meanwhile, the condition that the tube cable is not damaged due to coiling in the using process is ensured, the application range of the tube cable is improved, and meanwhile, the requirements on the internal cable are reduced.

The invention discloses a method and device for using tiny coal powder as reiguition fuel to reduce the NOX, which belongs to coal powder cleaning and combusting field. The method is: uses separator of raw and tiny coal powder to decrease the thin rate of all coal powder and improve the homogeneity, and uses part of tiny coal powder as reiguition fuel, extracts part of smoke form the tail smoke channel and then transmits the reiguition fuel into the reacting area, the NOX generated in the primary combustion area into N2; pours in part of combustion air from the top of the reacting area, ensures the coal powder combustion safety. The invention can decrease the discharge of nitrogen-oxygen material for 60% based on guaranteeing the boiler efficiency. In order to realize the technology, the primary combustor on the furnace is arranged with a reiguition fuel, burned wind aperture, and assembled with advanced raw powder separator and smoke extracting and transmitting system. The method in the invention has high denitration efficiency, it does not affect the combustion efficiency, the structure is reasonable, the investment is little, and the running cost is low.

The invention discloses a carbon fiber optical fiber load-bearing detection cable for an oil and gas exploration robot, comprising a stainless steel pipe and a bracket arranged in the stainless steelpipe, wherein a plurality of cavities are formed between the bracket and the stainless steel pipe, an optical fiber unit is arranged in the cavity, and a water blocking agent is filled in the cavity;A lay of aramid fiber, an inn layer of carbon fiber and an outer lay of carbon fiber are sequentially arranged outside that stainless steel pipe. The invention is provided with two layers of carbon fiber, there is no need to add a layer of armor to the outer layer, The invention replaces the traditional double-layer stainless steel armor layer, greatly reduces the weight of the whole cable, and greatly improves the load-bearing performance of the cable. The aramid fiber layer and the carbon fiber layer are combined to make the cable high-temperature resistant, corrosion resistant, light weight, tear-resistant, strong load-bearing capacity, long service life, and ensure the high-quality and stable oil and gas exploration work.

The invention relates to denitrifying low-NOx emission control process for a circulating fluidized bed boiler. The denitrifying low-NOx emission control process comprises the following steps that thearea of the evaporating heating surface in the boiler is increased, and the heat absorption capacity of the evaporating heating surface of a boiler furnace is changed; the size of hood small holes ofa wind-distribution plate is adjusted, and the size of slag discharging holes of the wind-distribution plate and the size of hood openings in the surrounding wall surfaces are increased; the inlet velocity and incident angle of an inlet flue of a cyclone separator are adjusted, the circulation area of a riser is adjusted according to the amount of fired coal of the boiler and the efficiency of thecyclone separator, the circulation area and the air volume of material-returning air of a material returning valve are adjusted, the flow rate of materials on the interface of a material returning system is controlled at 90-150kg / s through adjustment, the material circulation of the boiler is increased, and the burning temperature is reduced; and an appropriate amount of low-oxygen flue gas is extracted between a dust remover of the boiler and a draft fan and sent to a primary air inlet or a hot primary air outlet of an air pre-heater, the initial oxygen content of coal combustion is reduced,then the low-oxygen flue gas is fed into a primary air chamber at the bottom of the boiler, and the excess air coefficient of the primary air chamber at the bottom of the boiler is adjusted to be 0.4-0.8.

The invention discloses a cooling system with an energy storage function and an adjusting method thereof. The cooling system comprises a ventilation device, a heat medium distribution system, a heat dissipation system, a cooling medium collecting system and at least one medium storage tank and the like, wherein the medium distribution system comprises a plurality of water distribution branch pipelines, and the water distribution branch pipelines are connected with the heat dissipation system in parallel. The adjusting method is characterized in that in three seasons of spring, summer and autumn, the flow of a medium pump is increased as far as possible by utilizing relatively good cooling conditions at night, and the allowance of the cooling capacity of the system under the environment condition is fully utilized for cooling heat media, so that the medium temperature of the system is gradually reduced, then the temperature of media in the medium storage tank is gradually reduced, and the cold storage effect is achieved; and when the temperature of a low-temperature end of the heat dissipation system is too low, the flow of the medium pump is gradually increased, so that the heat dissipation system is heated by utilizing the media stored in the medium storage tank. The cooling system with the energy storage function and the adjusting method thereof have the advantages of being convenient to adjust, safe and reliable in system, high in average heat efficiency and the like.

The invention discloses a sleeping pad structure, which is economical and practical and is good for people to have a good health in sleep, and comprises a sleeping pad core plate formed by gluing a plurality of layers of polythene layers of different densities, wherein at least one external surface of the sleeping pad core plate is adhered with a sponge layer, and the sleeping pad core plate is provided with through holes connected with the internal surface of the sponge layer. The core part of the sleeping pad with the structure has good rigidity and certain elasticity, which is good for the health of the vertebra of human body; besides, the elasticity of the surface sponge layer can make people feel comfortable. Vent holes can ventilate air to radiate heat and eliminate wet steam. The sleeping pad structure is simply manufactured, convenient and practical, and is good for keeping body in good condition.

A scanning measuring device, in particular a laser scanner, profiler, total station or tracker, comprising at least a base for the placement of the device, a housing mounted on the base, a shaft mounted in the housing such that it can rotate about an axis of rotation and bearing a beam deflection unit in a rotationally fixed manner, a beam generating unit, which generates a transmitted beam which is transmitted into the environment by the beam deflection unit, a beam receiving unit, which receives a received beam reflected from the environment, a controllable positioning means which drives the shaft, wherein the shaft is supported by at least one pair of angular contact rolling bearings set in an O arrangement, and the angular contact rolling bearings are arranged on the shaft such that the rolling contact lines of the associated angular contact rolling bearings meet substantially on the axis of rotation.

The invention discloses a synchronous phase modifier configuration method of an extra-high voltage direct current weak receiving end power grid. The method comprises the following steps of establishing an optimal configuration model of a synchronous phase modifier, and considering constraint conditions such as the number of configurable phase modifiers of a transformer substation, the spinning reserve capacity of a generator set and the transient voltage stability of a receiving-end power grid on the basis of reducing the spinning reserve capacity of the generator set reserved for keeping thetransient voltage stability of the weak receiving-end power grid; determining the optimal configuration node sequence of the phase modifier in a weak receiving end power grid according to the sensitivity relationship between the generator set spinning reserve capacity and the node dynamic reactive configuration capacity; and solving the optimal configuration number and capacity of the phase modifier in the weak receiving end power grid by using the optimal configuration node sorting and iteration method. The method is advantaged in that the transient voltage supporting effect of the phase modifier on the weak receiving end power grid can be effectively improved, the spinning reserve capacity of the generator set is released, the on-load capacity of the generator set in the load peak periodis improved, and a good engineering application value is achieved.

The invention provides a preparation method of a Ru / C nano-assembly, relates to the field of preparation methods of noble metal modified carbon nanocomposites and aims to solve the technical problemsthat the conventional catalyst has lower catalytic efficiency on an electrochemical reaction, low storage amount and high cost. According to the method, in a manner of synthesizing Ru-MOF with a KUST-1-like structure, RuCl3.xH2O, 1,3,5-trimesic acid, acetic acid, ethanol and water are mixed and subjected to a high-temperature one-step hydrothermal process to directly obtain the Ru / C nano-assembly.The catalyst has good catalytic activity for hydrogen precipitation and oxidation. The method is used for preparing the Ru / C nano-assembly, and the prepared material is applied to hydrogen evolutionby water electrolysis and hydrogen oxidation of a fuel cell anode.

The invention provides an engine mounting pad assembly. The assembly includes an upper installing plate assembly connected with an engine and a lower installing plate assembly connected to a vehicle frame. A rubber assembly is disposed between the upper installing plate assembly and the lower installing plate assembly. The rubber assembly includes a rubber body used for engine load and vibration reduction and a limit rubber block for limiting under extreme working conditions; the shore hardness of the rubber body is 40 degrees-60 degrees; and the shore hardness of the limit rubber block is more than 65 degrees. The engine mounting pad assembly has the advantages of a compact structure and effectively meeting requirements of support, limit and vibration isolation reduction.

The invention discloses a bridge automatic leveling combined vibration isolation rubber bearing, which includes a top plate with cylindrical protrusions arranged in sequence from top to bottom, an upper connecting plate with a cylindrical groove, a rubber bearing body and a lower connecting plate, wherein the top plate is connected with the upper structure of the bridge through an anchor bolt, theupper connecting plate is fixed on the top end of the rubber bearing body, the cylindrical protrusion of the top plate is matched with the cylindrical groove on the top surface of the upper connecting plate, and the cylindrical groove is coated with lubricating oil; the upper and lower ends of the rubber bearing body are respectively provided with an upper sealing plate and a lower sealing plate,and the bottom end of the lower connecting plate is connected with the lower structure of the bridge through an anchor bolt. The self-leveling composite isolation rubber bearing of the bridge can release the bending moment of the beam end caused by the deflection of the beam body, uniformly compress the rubber bearing, and effectively improve the bearing capacity under the limit load of the leadrubber bearing or the high damping rubber bearing; Reducing the local stress at the joint of bearing, pier and beam; the invention has the advantages of simple structure, convenient processing, convenient installation and maintenance.

The invention relates to a novel assembly type airport pavement system setting method which comprises a pavement soil foundation and a base layer laid on the pavement soil foundation, and geotechnical cloth and prefabricated pavement slabs are laid on the base layer. A pavement soil foundation and base layer top surface flatness precision control method, an assembly type pavement slab prefabrication factory production method, an assembly type pavement slab field assembly method, an assembly type pavement slab rapid automatic leveling method, an assembly type pavement slab joint method, an assembly type pavement slab grouting and void detection method and an assembly type pavement slab rapid replacement method are adopted. And accurate and rapid installation, replacement and maintenance of the overall structure of the airport pavement are realized. The system adapts to the requirement of future development of the airport, the mechanization and intelligence level of airport pavement construction is greatly improved, the building and repairing efficiency and convenience of the airport pavement are improved, and the objective requirements of airport first-aid repair, rush building and reconstruction and extension non-stop construction and pavement damage rapid repair are well met.

The invention discloses insulating paint for electronic components. The insulating paint for the electronic components comprises the following raw materials in parts by weight: 20 to 30 parts of cellulose nitrate, 15 to 25 parts of modified polyester resin, 12 to 24 parts of epoxy modified organic silicon resin, 6 to 14 parts of dichloromethylvinylsilane, 5 to 10 parts of dicumyl peroxide, 13 to 22 parts of an organic solvent, 3 to 5 parts of modified nanometer diamond, 6 to 11 parts of fillers, 1.5 to 2.5 parts of a flatting agent, 1 to 5 parts of a film-forming agent, 1 to 5 parts of a curing agent, 4 to 12 parts of a heat-dissipating enhancer and 2 to 3 parts of a dispersing agent. The insulating paint for the electronic components, provided by the invention, has high adhesiveness and high temperature resistance, has the advantage that heat does not gather in high-power density electrical equipment and is conducted and dissipated by a dipping or coating insulating layer successfully, and improves the load carrying capability of the electrical equipment.

The invention discloses a dowel positioning bracket based on composite materials for cement concrete pavement, which comprises: two sets of dowel brackets arranged in parallel, each group of brackets includes two positioning main rods arranged in parallel, A number of door-shaped support legs are evenly connected between the two positioning main rods in parallel directions. The root of the support legs is provided with a circular hook claw, and the top cross bar of the support leg is centered with a detachable composite ring. The hook claw, the composite circular hook claw includes the lower half hook claw for connecting the support legs and the upper half hook claw for connecting the dowel bar. The invention has the advantages of low density, simple manufacturing process, detachable, convenient transportation, light weight, can be installed and formed on site, reduces construction difficulty, and speeds up construction progress. At the same time, it has good corrosion resistance and high temperature resistance, low heat and humidity shrinkage stress, and the unique structure further strengthens the stability of the dowel bar during use, effectively reducing the problem of misalignment when the dowel bar is installed.

The invention discloses an underground excavated spliced type underpinning structure on a lower part of an existing building base. The underground excavated spliced type underpinning structure comprises a rectangular steel pipe and a prefabricated part; shear pin keys are arranged on two opposite side walls extending along a length direction of the rectangular steel pipe; pin key grooves matched with the shear pin keys are formed on the prefabricated part; the prefabricated part is butt-jointed with the rectangular steel pipe through the shear pin keys and the pin key grooves; a horizontal prestress duct is formed in the rectangular steel pipe; a longitudinal prestress duct is formed on the prefabricated part; the horizontal prestress duct is penetrated through the prefabricated part; a horizonal prestress reinforcement is penetrated through the horizontal prestress duct; a longitudinal prestress reinforcement is penetrated through the longitudinal prestress duct; a grouting duct is formed on the prefabricated part. The invention also discloses a construction method for the underpinning structure. A method for combining the rectangular steel pipe with the prefabricated part is applied to the spliced type underpinning structure, so that onsite wet operation can be avoided, construction difficulty can be reduced and construction period can be shortened.

The invention discloses a direct air cooling combined type atomizing back pressure reducing device which comprises a steam turbine. A steam turbine low-pressure cylinder is arranged at the tail of the steam turbine and connected with a steam exhaust device, the steam exhaust device is divided into an upper steam exhaust device body and a lower steam exhaust device body through a separating plate, and the upper steam exhaust device body is connected with an air cooling island through a steam exhaust pipeline. Multiple pipeline atomization nozzles are arranged in the steam exhaust pipeline and connected with a desalted water pump through a pipeline atomization nozzle water supply pipeline, the desalted water pump is connected with a desalted water tank, and the steam exhaust pipeline is connected with the lower steam exhaust device body through a steam exhaust pipeline drain pipe. The direct air cooling combined type atomizing back pressure reducing device is little in equipment, simple in system, low in maintenance cost, low in operation difficulty and small in investment, can make full use of water resources and is suitable for being applied and popularized in direct air cooling power plants.

The invention relates to the technical field of frame chassis, in particular to a frame front end overhanging beam support. The frame front end overhanging beam support comprises a left overhanging beam, a right overhanging beam, wherein the left overhanging beam and the right overhanging beam, respectively, comprises a restraint area, a loading area and an assembly area, and a restraint area witha shock absorber connecting hole, wherein the restraint area is a hollow frame formed by the joints of the shock absorber connecting holes and the main beam connecting holes, the loading area comprises four to six connecting ribs extending from the restraint area to the assembly area, the thickness of the loading area is larger than the thickness of the restraint area. The left and right overhanging beam supports can be connected with the main beam, the cross beam, the steering machine, the lifting oil cylinder and the shock absorber, the cooling system and the like and are provided with a good carrying function; the installation position of each assembly is basically in the extending direction of the main beam, the thickness of the left and right overhanging beam supports is small, the casting is convenient, the impact resistance is better, and the dynamic load, the torque and the axial force load transmitted by the assemblies can be better borne; the structure is more reasonable, the weight is lighter, and the casting and the machine process are convenient.

The invention discloses a water spray cooling method for the low-pressure exhaust cylinder of an air-cooled steam turbine. When the unit is operating in a conventional back pressure state, when the condensate temperature is lower than the exhaust temperature, the condensate is used to spray the exhaust steam in the low-pressure exhaust cylinder; when the unit is running When the condensed water temperature is higher than the exhaust steam temperature under high back pressure, first use the discharge water from the outlet of the lubricating oil cooler to cool the condensed water, reduce the temperature of the condensed water, and then use the cooled condensed water to spray the low-pressure exhaust steam cylinder internal exhaust.

The invention discloses a quick bearing device for a high-pressure occasion, which comprises a base, a side pushing assembly, a sliding lower seat, a support, a sliding upper seat and a sliding supporting assembly, and the base is horizontally arranged; the sliding lower seat is horizontally arranged on the base in a sliding manner; the side pushing assembly is arranged on one side of the base and connected with the sliding lower base. The number of the supports is two, and the two supports are vertically arranged on the two sides of the base in parallel. The sliding upper seat is arranged between the two supports and connected to the supports in a sliding mode in the vertical direction. The sliding supporting assembly is arranged on the upper portion of the sliding lower base and the lower portion of the sliding upper base. The sliding supporting assembly is connected with the sliding lower base and the sliding upper base. When the sliding lower base slides horizontally, horizontal thrust is converted into jacking force through the sliding supporting assembly. Automatic jacking, supporting and limiting effects on the bottom die are achieved through transverse thrust, the high bearing function is achieved, the equipment structure is simplified, the bottom die replacement action is reduced, and the replacement efficiency is improved.

The invention discloses a steel frame for building renovation with good protection performance, which comprises a bracket, and a plurality of square spaces are formed on the bracket, and each square space includes a square frame arranged at an edge position, and the outside of the square frame is connected with a side The side bars are fixedly connected with each other to form a square side frame, and the four corners of the square frame are provided with fan-shaped guardrail components. The connecting shaft is arranged between the square frame and the side rod, the positioning rod is rotatably connected with a transition rod, the transition rod on the adjacent positioning rod is connected through the connecting rod, the transition rod and the connecting rod are rotatably connected, and the The transition rod is set at the same length as the connecting rod, the transition rod is shorter than the positioning rod, and the ends of the connecting rods arranged at both ends of the guardrail assembly are provided with positioning pieces for fixed connection with the square frame. The protection effect is better, and at the same time, it is easy to install and has a better use effect.

The invention provides an elastic foil dynamic pressure air floatation radial bearing, a motor and an air compressor, the elastic foil dynamic pressure air floatation radial bearing comprises a bearing seat, a top foil arranged in an inner hole of the bearing seat and a supporting foil supported between the inner hole of the bearing seat and the peripheral wall of the top foil, and the top foil is of a whole circle structure. According to the radial bearing, interference of the free end does not exist in the inner circle of the top foil of the bearing, the bearing area is increased, and therefore the bearing performance of the radial bearing can be improved, and the phenomenon of gas film end leakage at the free end of the top foil in the prior art is thoroughly eradicated.

The invention relates to a high-bearing gear bearing. The gear bearing comprises an outer ball rail, an inner ball rail and ceramic rolling parts. The ceramic rolling parts are located between a rolling way of the outer ball rail and a rolling way of the inner ball rail. Two annular oil seals are further included between the outer ball rail and the inner ball rail and are located on the two sidesof the multiple ceramic rolling parts correspondingly. The high-bearing gear bearing is characterized in that the rolling ways between the outer ball rail and the inner ball rail are of a dual rollingway structure, and the two rolling ways are spaced by 30 mm to 50 mm; and a gear portion is further arranged on the outer side face of the outer ball rail. According to the high-bearing gear bearing,the bearing and a gear are integrally designed, that is, the gear and the outer ring of the gear are designed into an integrated structure, the number of parts is effectively reduced, the mass is reduced, and meanwhile stability of power transmission can be improved. Meanwhile, the dual rolling way structure is adopted by the high-bearing gear bearing, the bearing performance of the bearing is greatly improved under the condition that the boundary dimension of the bearing is not increased, and the operating requirement of a wind power variable pitch bearing is met better.