51results about How to "Meet high load requirements" patented technology

The invention discloses a bearing retainer and a machining technique thereof. The technique mainly comprises: blanking perimeter and height required by the retainer at a time, moulding all cage pocketstructures of the retainer at a time, and punching all the cage pockets into concave cage beams provided with groove structures at a time; circling the retainer bracket with circling mould, and welding the butt ports of two ends of the circle to form an integral bearing retainer structure. The machined bearing retainer bracket is in the integral bearing retainer structure formed by manufacturinginner and outer ring beams, cage pockets, concave cage beams between adjacent cage pockets, and boundary beams for connecting the concave cage beams to the space between the inner and outer ring beamswith the same mild steel plate through the previous technique so that the invention has the advantages of reducing accumulated technique deviations, improving precision and reliablity of products, solving the problem of high cost of material waste in conventional bearing machining technique, fully increasing the utility rate of material, and further improving the production efficiency of the bearing retainer.

The invention discloses a novel boiler front feeding device of a straw biomass CFB (circulating fluidized bed) boiler, which includes a boiler front feed bin assembly, a first-stage blending spiral assembly, a blanking pipe assembly, a second-stage feeding spiral assembly and a safety control assembly, wherein the boiler front feed bin assembly includes two feed bins; an infrared camera is mounted at the top end in each feed bin; explosion-proof relieve valves are installed at the middle parts of the two sides of each feed bin; a manhole door is arranged at the middle part on the outer side of each feed bin; and two activators are arranged at the lower part of each feed bin. The novel boiler front feeding device fully combining the structural characteristics of the screw feeder, adopts the brand-new model that the feeding process sectional functions are decomposed and the safety fire-prevention measures are reasonably linked, and can satisfy the high load of the boiler and has excellent use effect for all sorts of biomass fuels as proven by practice.

The invention discloses a bracket-free floating air pressure caliper disc brake. The brake comprises a mounting plate (1), a brake caliper assembly (2), two guide pins (3), a screw (4), a friction plate (5), a pressure spring (6) and a pressure plate (7), wherein the mounting plate (1) is provided with a central through hole, the central through hole is centered on a non-steering axle, and the brake caliper assembly (2) is directly fixed on the mounting plate (1) through the guide pins (3). The brake has simple structure, is convenient to assemble and maintain, cancels a bracket, saves the cost and the assembly step, meanwhile, can ensure the braking performance, and eliminates the negative effect of canceling the bracket.

An intelligent pressure management system that controls the pressure inside a cryogenic tank between variable target vapor pressure values and / or ranges that are set as a function of system operating conditions, by actuating an actively controllable valve disposed on a gaseous fluid vapor conduit; and in some embodiments, additionally by actuating an actively controllable valve on a liquefied gaseous fluid conduit, based on a signal received from a pressure sensor that measures the pressure inside the pressurized tank. The variable target vapor pressure values and / or ranges are determined as a function of at least two system operating conditions which can include the vapor volume in the storage space; the fluid flow demanded by the use device; and a measured temperature parameter that correlates to the temperature of the fluid exiting a heater.

A shell-and-tube reactor heat transfer method for a methanol synthesis technology adopts a shell-and-tube methanol synthesis reactor and comprises the following steps: (1), a majority of the heat released through the reaction of the methanol synthesis tower is transferred to the boiling water in the shell side; by adding a set of water supply circulation system into the system of the original methanol synthesis circulated based on the water density difference, the methanol synthesis reaction heat is removed from the system and the water-containing part is vaporized to take away the heat generated in the reaction; (2), the water inside a steam drum (3) in the water supply circulation system enters a circulating pump through a vertical pipe and an input valve (7); the circulating pump is pressurized and enters the shell side of the methanol synthesis tower (2) through an output valve (8) so as to greatly increase the water amount of the shell side of the synthesis tower; when the water inside the shell side of the synthesis tower is heated and vaporized into small bubbles; the small bubbles can directly enter into the steam drum (3) through a rising pipe so as to take away more heat to meet high-load requirements.

The invention discloses a double-circle steel wire rope shock absorber, consisting of an outer-circle steel wire rope, an inner-circle steel wire rope, inner-circle upper clamping plates, outer-circle upper clamping plates, a lower clamping plate and a plurality of belleville spring assemblies. The double-circle steel wire rope shock absorber provided by the invention can guarantee the normal exertion of shock absorption performance in the case of large predeformation and guarantee no conquassation under quite great loads; therefore, the safety coefficient and the capability of coping with an accident are improved; the broadband high-attenuation of shock by the shock absorber under the working conditions of precompression and small amplitude (several millimeters) can be realized; in addition, the double-circle steel wire rope shock absorber has the characteristics of long service life, good shock absorption effect and the like.

A hydraulic power steering system that maintains proportional pressure control between an input side of a gear and assist pressures internal to the steering gear by relying upon a control valve. A pressure differential is maintained between the input side of a gear and assist pressures internal to the steering gear throughout certain events. Those events include running the pump to fully charge the accumulator, idling the pump after fully charging the accumulator, discharging pressure from the fully charged accumulator at an onset of a steering event having a demand for steering load, recovering the discharged pressure of the accumulator by running the pump after turning on the pump at the onset of the steering event, and opening the relief valve in the valve manifold during the steering event.

The invention provides an extensible simple power source aging test instrument based on a basic resistor circuit, and belongs to the field of server power source aging. According to the extensible simple power source aging test instrument based on the basic resistor circuit, the basic pure resistor circuit is adopted, cement resistors which are large in power consumption and good in heat radiation with different resistance power consumptions are simply connected in parallel and series, different load circuits are obtained in a matched mode, different load combinations are selected through switches, and the effect of simulating a load environment is achieved. If it is necessary, an original circuit can be extended, and therefore the requirement for a larger load is met. The load environment of a power source can be well simulated, operation is simple, and an extensible function is achieved.

The invention discloses a no-clearance rectilinear motion actuator with a multiple-stage planetary roller screw pair. A first roller nut is in threaded connection with a first-stage screw, a sliding sleeve sleeves the outer wall of a first-stage shell, the outer wall of the sliding sleeve is connected to the inner wall of an actuator shell, and the left end of a hollow screw is rotationally supported on the inner wall of the first-stage shell through a first deep groove ball bearing. A pressure cover and a limiting sleeve sleeve the first roller nut, and the limiting sleeve is fixedly connected with the first roller nut; a rolling spline housing is fixedly connected in the hollow screw, the rolling spline housing is in threaded connection with the first-stage screw, a second roller nut isin threaded connection with the hollow screw, the second roller nut is fixedly connected with a second-stage shell, and the second-stage shell is slidably connected to the inner wall of the first-stage shell through the sliding sleeve. The no-clearance rectilinear motion actuator is stable in transmission, high in transmission precision and good in using effect.

A hydraulic power steering system that maintains proportional pressure control between an input side of a gear and assist pressures internal to the steering gear by relying upon a control valve. A pressure differential is maintained between the input side of a gear and assist pressures internal to the steering gear throughout certain events. Those events include running the pump to fully charge the accumulator, idling the pump after fully charging the accumulator, discharging pressure from the fully charged accumulator at an onset of a steering event having a demand for steering load, recovering the discharged pressure of the accumulator by running the pump after turning on the pump at the onset of the steering event, and opening the relief valve in the valve manifold during the steering event.

In a wheel carrier unit comprising a basic wheel carrier member, a support member connecting the basic wheel carrier member to a vehicle body by way of axle links, and a brake cylinder arranged thereon, the brake cylinder is disposed on the side of the wheel carrier unit remote from the wheel location and a housing for a brake application unit serving as mechanical force transmission unit is formed on the opposite side of the wheel carrier unit.

The invention relates to the technical field of rotary magnetic field devices, in particular to a high-energy rotary magnetic massage armchair structure. A high-energy rotary magnetic device is arranged below a chair seat of a massage armchair. A liftable stretchable foot resting mechanism for foot resting is arranged between the chair seat and the chair bottom of the massage armchair. The stretchable foot resting mechanism comprises a leaning rod, a bent rod and a stretchable air cylinder, wherein the leaning rod is close to the front side of the high-energy rotary magnetic device and hinged to the chair seat, the bent rod is hinged to the other end of the leaning rod and close to the portion below the front portion of the high-energy rotary magnetic device, and the stretchable air cylinder is hinged to the other end of the bent rod and located below the high-energy rotary magnetic device. A lower supporting rod is hinged to a piston rod of the stretchable air cylinder. The other end of the lower supporting rod is hinged to the portion, close to the front end, of the chair bottom. The rear end of the stretchable air cylinder is hinged to the portion, close to the rear end, of the chair bottom. The high-energy rotary magnetic massage armchair structure is more scientific and reasonable in structure, high in compatibility and good in magnetic health care effect.

The invention aims to provides a novel airtight full-loaded four-row cylindrical roller bearing, comprising an outer race (4), a pin shaft (1) compatibly serving as an inner race and four-row cylindrical rollers (5) arranged between the outer race (4) and the pin shaft (1). The novel airtight full-loaded four-row cylindrical roller bearing is characterized in that each cylindrical roller (5) is provided with a column supporting hole, two sides of each row of cylindrical roller (5) are respectively provided with a supporting ring (7), a strut (6) is respectively inserted in the column supporting hole of each cylindrical roller (5), and two ends of the strut (6) are respectively arranged in a support groove on a supporting ring (7). By adoption of the bearing disclosed by the invention, the difficulties that the traditional like bearing is unavailable for repeated mounting and dismounting are solved, meanwhile, a requirement on a high-load working condition is realized, and the bearing in such a structure is particularly suitable for a small end of a connecting rod in a diaphragm pump crank-link mechanism and the working environment with low-speed swinging and heavy load, and has the advantages of being reduced in use cost and prolonged in service life.

The invention discloses a transition system for butt joint of a straddle-type monorail section turnout beam and a station. The system comprises a bearing platform foundation (1); the bearing platformfoundation (1) is provided with a station bridge pier (2) and a turnout beam bridge pier (10); the top of the station bridge pier (2) is provided with a station hall layer cover beam (3), a pluralityof station hall columns (4) are arranged above the station hall layer cover beam (3) at intervals for supporting a station platform layer cover beam (7) arranged on the station hall columns (4), and station rail beams (8) are longitudinally arranged above the station platform layer cover beam (7); the top of the turnout beam bridge pier (10) is provided with a turnout beam (6), the portion, corresponding to the station rail beams (8), of the turnout beam (6) is longitudinally provided with a mechanical turnout (9), the ends of the station rail beams (8) and the mechanical turnout (9) are rightopposite to each other, and the elevations of the top surfaces of the station rail beams (8) and the mechanical turnout (9) are the same, so that the butt joint of the straddle-type monorail sectionturnout beam and the station is achieved. The bearing requirement for the station pier due to the arrangement of brackets is avoided; the influence of the arrangement of the section transition rail beam on the use function of the turnout is also avoided.

The invention discloses a heat exchange system. The heat exchange system comprises a first high-temperature heat storage medium conveying pipeline, a first low-temperature heat storage medium conveying pipeline, a second high-temperature heat storage medium conveying pipeline, a preheater, an evaporator, a superheater, a water feeding device and a steam turbine. Compared with the prior art, the heat exchange system has the innovative points that by arranging the second high-temperature heat storage medium conveying pipeline, when a heat storage medium coming from the superheater is cooled after being subjected to heat exchange and consequently cannot meet the load demand of the heat exchange system, a high-temperature heat storage medium can be supplemented into the evaporator through the second high-temperature heat storage medium conveying pipeline, the temperature of the heat storage medium entering the evaporator is increased, and accordingly, the purpose of improving load of the heat exchange system is achieved.

An unsupported, floating, and pneumatic caliper disc brake, comprising a mounting plate (1), a brake caliper assembly (2), two guide pins (3), screws (4), a friction plate (5), pressure springs (6), and a pressure plate (7); wherein a central through-hole is provided on the mounting plate (1), the central through-hole being used for centring on a non-steering axle, and the brake caliper assembly (2) is directly fixed onto the mounting plate (1) by means of the guide pins (3). The brake is simple in structure, convenient for assembling and convenient for maintenance. Given that a support has been removed, a saving is made on cost and in the setting up process. In addition, the brake ensures braking performance and eliminates the negative impact created when support is withdrawn.

A slide bearing is described with a bearing metal layer on copper basis as applied to a carrier and a running layer made of an alloy of aluminum and tin which is applied physically onto the bearing metal layer in vacuum. In order to combine favorable resistance against wearing with a low inclination towards jamming with advantageous tribological properties it is proposed that the bearing metal layer consists of an alloy with 4 to 8% by weight of tin, 0.6 to 1% by weight of silver, 1 to 2% by weight of an iron phosphide and 0 to 0.15% by weight of carbon, preferably in the form of graphite, and the remainder of copper.

The invention discloses a bracket. The bracket comprises a cross rod and supporting devices which are connected through the cross rod and arranged at the two ends of the cross rod symmetrically. Each supporting device comprises a base used for stabilizing the supporting device, an arc bracket part used for supporting a workpiece and a supporting portion used for connecting the base with the arc bracket part, wherein the base is provided with a first fixing hole used for fixing the base; the supporting portion is in an H shape formed by a connection column, a first supporting column and a second supporting column; the first supporting column and the second supporting column are distributed on the two sides of the connection column; the vertical height of the first supporting column is lower than the vertical height of the second supporting column; the arc bracket part is provided with a second fixing hole used for fixing the workpiece. The bracket is attractive in structural appearance, high in practicability, good in stability, economical, practical and worthy of being popularized; the workpiece is convenient to take and place; the bracket can stably support a semi-finished product in the workpiece machining process.

The invention discloses a method suitable for conducting reconstruction and reinforcing on an existing artificial foundation. The method comprises the steps that an original foundation is included, the original foundation is reinforced and improved to form a composite foundation by arranging plain concrete piles; according to the technical scheme, the pile body concrete strength grade of the plainconcrete piles is C20, the pile diameter is 500 mm, the effective pile length is 10.5-12.5 m, a silty clay layer or locally a first highly weathered tuff bed serves as a supporting stratun of the pile end, the pile spacing of a main building is 1.48 m*1.55 m, the pile spacing of podium buildings is 2.0 m*1.8 m, and the pile top is provided with a gravel mattress layer with the thickness being 200mm. Accordingly, the effects of fully utilizing the bearing capacity of the original artificial foundation and being uniform in foundation deformation are achieved.

The invention discloses a train power supply system and method capable of automatically configuring power supply modes. The train power supply system comprises a first mode recognition unit, a first signal feedback unit, a first train power supply module, a second train power supply module, a first train power supply bus and a first train power supply socket assembly, wherein the first train powersupply module is connected with the first train power supply bus through a first contactor ACMK, and the second train power supply module is connected with the first train power supply bus through afirst contactor DCMK; the first train power supply bus supplies power to loads through the first train power supply socket assembly; and the first signal feedback unit transmits coupling information of the first train power supply socket assembly to the first mode recognition unit, and the first mode recognition unit controls the first contactor ACMK and the first contactor DCMK based on the coupling information. The train power supply system and method can automatically configure output power supply modes according to load types to guarantee power supply and load matching, guarantee power supply safety and guarantee high-requirement and high-reliability power supply to refrigerated container loads.

The invention discloses a heat exchange system. The heat exchange system comprises a first high-temperature heat storage medium conveying pipeline, a first low-temperature heat storage medium conveying pipeline, a second high-temperature heat storage medium conveying pipeline, a preheater, an evaporator, a superheater, a water feeding device and a steam turbine. Compared with the prior art, the heat exchange system has the innovative points that by arranging the second high-temperature heat storage medium conveying pipeline, when a heat storage medium coming from the superheater is cooled after being subjected to heat exchange and consequently cannot meet the load demand of the heat exchange system, a high-temperature heat storage medium can be supplemented into the evaporator through the second high-temperature heat storage medium conveying pipeline, the temperature of the heat storage medium entering the evaporator is increased, and accordingly, the purpose of improving load of the heat exchange system is achieved.

The invention provides a high-bearing type antiskid chain automatic locker capable of meeting the use requirement of a truck. The high-bearing type antiskid chain automatic locker comprises a shell, arotating wheel, an energy storage spring, a locking block, a first reset spring, a push button, a second reset spring, a push button block, a limiting block, a third reset spring, a steel cable, a button and a fourth reset spring. According to the automatic locker for an antiskid chain, quick installation is realized, the size is small; glove removal operation is not needed; the tightness of thechain can be automatically adjusted; the length of the chain can be corrected automatically, and the locker is convenient to store, has a certain waterproof function, meets the use conditions of roadssuch as ice and snow or muddy roads. Therefore, the antiskid chain mounting efficiency is improved, the self-adjusting function of the antiskid chain is realized, the vehicle driving safety performance is enhanced, and the high-load requirement of the antiskid chain connecting device of truck type transportation tools is met. A ratchet tooth meshing structure is employed, the ratchet wheel with the high requirement for the bearing capacity can be produced in batches through engineering plastic or metal, and the requirements for the bearing capacity of different vehicles are met.

The invention discloses a connecting rod lubricating oil conveying structure of a diesel engine. The lubricating oil cools the piston of the diesel engine. The inside of the piston has an internal cooling oil passage, and the top wall of the inner cavity of the piston is symmetrically arranged with the internal cooling oil passage. Two connected oil inlets, the piston and the small head of the connecting rod are hinged together. At least one oil injection hole is aligned with the oil inlet in the whole stroke after the top dead center. The connecting rod lubricating oil delivery structure enhances the cooling effect on the piston after the top dead center by improving the ratio of lubricating oil delivery before and after the top dead center, so that the piston can adapt to higher load requirements.

The invention discloses a multi-rotor aircraft with multiple shafts arranged in a staggered mode. The multi-rotor aircraft comprises a rack, a plurality of upper-layer power sources, a plurality of lower-layer power sources, a plurality of upper-layer paddles and a plurality of lower-layer paddles. The upper-layer paddles are arranged at intervals and connected to the upper portion of the rack through the plurality of upper-layer power sources. The plurality of lower-layer paddles are arranged at intervals and are connected to the lower part of the rack through the plurality of lower-layer power sources. The multiple upper-layer paddles and the multiple lower-layer paddles are arranged in a staggered mode in the projection direction of the rack. The centers of the upper-layer paddles and the centers of the lower-layer paddles are located on the same flat geometric figure in the projection direction of the rack. Under the same loading capacity, the multi-rotor aircraft can obviously reduce the flight resistance and volume and improve the propeller efficiency. Besides, the multi-rotor aircraft can also meet the high load requirement under the condition that influence on the size andthe weight is small, and the requirement of the multi-rotor aircraft for transportation equipment is low.

The invention discloses a radial gas bearing for an air suspension blower. The radial gas bearing comprises a top-layer foil, a top-layer gasket, a bottom-layer foil, a bottom-layer gasket, a bearing seat and a gasket, the top-layer foil is provided with a slit along the axial direction, two sides of the slit are provided with limiting blocks, the bearing seat and the gasket are respectively provided with a bearing seat limiting device and a gasket limiting device which are used for limiting the top-layer foil, and the bearing seat is provided with a bottom-layer foil fixing clamping groove which is used for fixing the bottom-layer foil and corresponds to the bottom-layer foil; a top-layer gasket is arranged above the bottom-layer foil, a bottom-layer gasket is arranged below the bottom-layer foil, the top-layer foil is located above the top-layer gasket, the bearing seat is provided with a top-layer foil fixing clamping groove corresponding to the top-layer foil, the top-layer foil is connected with the top-layer foil fixing clamping groove, and the top-layer foil fixing clamping groove coincides with one of the bottom-layer foil fixing clamping grooves; the free end of the bearing seat is provided with a gasket. The invention further discloses an assembly method. The bearing capacity is higher, the stability is high, and disassembly and assembly are convenient.

The invention relates to a movable sail and a sail adjusting method. The movable sail comprises a sail base and a slewing mechanism, and an auxiliary supporting sail surface is connected to the slewing mechanism; the top of the auxiliary supporting sail surface is rotationally connected with a main sail surface, the slewing mechanism rotates in the horizontal plane and comprises a slewing motor, an output shaft of the slewing motor is coaxially connected with a slewing gear, the tooth surface of the slewing gear is meshed with an inner tooth type slewing supporting bearing, the auxiliary supporting sail surface is fixedly mounted at the top of the inner tooth type slewing supporting bearing, and an included angle between the auxiliary supporting sail surface and the main sail surface is adjusted in a vertical plane; the auxiliary supporting sail surface and the main sail surface are rotationally connected through a rotating shaft; a rotating flange is fixedly mounted on the rotating shaft; and a swing electric cylinder is arranged on the auxiliary supporting sail surface, and the top end of an output shaft of the swing electric cylinder is hinged to the rotating flange. The windward angle of the sail surface can be changed according to the direction and magnitude of wind, and the effective wind direction range is wide through operation of the sail surface slewing mechanism.

The invention belongs to the technical field of floors, and particularly discloses a glass fiber reinforced polyester antiskid floor and a preparation method thereof. The glass fiber reinforced polyester antiskid floor comprises a hollow glass fiber reinforced plastic framework, a foaming core layer filling a cavity of the glass fiber reinforced plastic framework and a surface layer arranged on the upper surface of the glass fiber reinforced plastic framework. The glass fiber reinforced plastic framework is made of glass fiber reinforced polyester. The surface layer is prepared from the following components in parts by weight: 20 to 25 parts of carborundum having a particle size of 40-60 meshes, 20 to 30 parts of quartz sand having a particle size of 80-100 meshes, 15 to 20 parts of calcium carbonate having a particle size of 300-330 meshes and 25 to 35 parts of polyurea. The floor is mainly used for outdoor and indoor tools, has the advantages of light weight, high strength, corrosionresistance, super wear resistance, durable skid resistance, high elasticity modulus, high hardness and the like, and has the service lifetime of 30 years; and the embossing process is used for embossing the surface layer, simplicity and convenience are achieved, patterns are attractive, products with different patterns can be obtained by replacing embossing rollers with different textures, and diversified requirements are met.