46results about How to "Low service life" patented technology

The invention provides a rapid manufacturing method for a metal 3D printing injection mold of a structure facing a gradient space. The rapid manufacturing method comprises the steps that the injection mold is designed according to the characteristics of an injection molded part at first, meanwhile, the injection mold is partitioned according to the service characteristics and the molding characteristics of the injection mold in the injection molding process, decoupling optimization is conducted, and the injection mold is divided into a molding area, a supporting area and a function area; then the molding area of the injection mold is manufactured through a metal 3D printing mode; the supporting area of the injection mold is manufactured through a machining mode; the function area of the injection mold is manufactured through a metal 3D printing mode and is a molding insert or a cooling insert with a conformal cooling water channel; and the molding area, the supporting area and the function area are fastened and connected in a bolted connection or inserted connection mode finally. According to the rapid manufacturing method for the metal 3D printing injection mold of the structure facing the gradient space, the manufacturing efficiency of the injection mold is improved, the service life of the injection mold is prolonged, meanwhile, the cooling rate of the injection mold is increased so that the injection molding efficiency can be significantly improved, and the problem that the inconsistency is required by the material performance in the service process is solved.

The invention relates to a CNC (Computerized Numerical Control) automatic internal grinding machine for a bearing ring. The internal grinding machine comprises a lathe body, a reciprocating worktable, a grinding wheel shaft assembly, a workpiece axle box, a grinding wheel dresser, a longitudinal feed transmission mechanism, a transverse feed transmission mechanism, a cooling system, a hydraulic lubrication system, a CNC control system host and operating panel, and an electrical control system, wherein the reciprocating worktable, the grinding wheel dresser and the workpiece axle box are arranged on the lathe body; the grinding wheel shaft assembly is arranged on the reciprocating worktable; the longitudinal feed transmission mechanism and the hydraulic lubrication system are arranged inside the lathe body; the transverse feed transmission mechanism is arranged on a grinding wheel seat; the cooling system and the electrical control system are arranged at the rear side of the lathe body; the CNC control system host and operating panel is arranged above the reciprocating worktable; and the reciprocating worktable is arranged on a guide rail of the lathe body. The CNC automatic internal grinding machine for the bearing ring, provided by the invention, has the outstanding advantages of simple and compact structure, strong static and dynamic rigidities, locating precision, good performances of anti-vibration and vibration reduction, good precision retentivity, light friction and abrasion, long service life, easiness for operation and maintenance, safety, saving energy, environment friendliness, attractive appearance and the like.

The invention discloses a self-repairing and self-lubricating bifunctional anticorrosive coating and a preparation method thereof and relates to the technical field of intelligent coatings. The anticorrosive coating comprises high-molecular resin and self-repairing and self-lubricating bifunctional microcapsules loaded in the resin. The bifunctional microcapsules are prepared by taking polyurethane as a wall material and linseed oil as a core material and adopting an interfacial polymerization method. The prepared bifunctional microcapsules have smooth and flat surfaces and are narrow in particle size distribution, high in core material content, stable in chemical structure, good in thermal stability and good in compatibility with high-molecular resin. The self-repairing and self-lubricating bifunctional anti-corrosion coating can respond to damage in time, self-lubrication and self-repair of the anti-corrosive coating are effectively achieved, and service life of the coating is prolonged.

The invention provides a mechanical electric hybrid power driven three-wheeled road sweeper which is provided with two power sources of an engine and a storage battery. Under the circumstance of driving a vehicle-mounted working device, the engine further drives a generator to be connected with a drive motor controller, the generator is further connected with the storage battery, the storage battery can be connected with an external charger and connected with the drive motor controller, and the motor controller is connected with a drive motor A to drive the road sweeper to travel at variable speed. Part, of instantaneous generating capacity of the generator, more than requirement of the motor A is used for charging the storage battery, part of the instantaneous generating capacity of the generator, less than the requirement of the motor A is replenished by the storage battery, and the storage battery changes in floating charge and discharge. The three-wheeled road sweeper is small, flexible in steering, high in work capacity, good in dust control effect, more suitable for sweeping bicycle lanes and sidewalks as compared with four-wheeled road sweepers, particularly suitable for sweeping urban roadways, air-conditioned, free of pollution of vehicle exhaust and dust to operators, and capable of working continuously limitlessly as compared with pure electric road sweepers.

The invention discloses an aluminum alloy template system receiving template embedded device which comprises a threaded rod, a screw cap, a gasket, a nut and a sleeve. A first threaded section and a second threaded section are arranged at the two ends of the threaded rod correspondingly, the threaded directions of the first threaded section and the second threaded section are opposite, the gasketand the screw cap sleeve the first threaded section from inside to outside, the nut sleeve the second threaded section, the sleeve sleeves the middle section of the threaded rod and is positioned between the gasket and the nut, a convex part is arranged at the outer end of the screw cap, a through hole is formed in the convex part, and the axial direction of the through hole is perpendicular to the axial direction of the threaded rod. According to the aluminum alloy template system receiving template embedded device, the threads with opposite directions are arranged at the two ends of the threaded rod, and the threaded rod can be driven to rotate and withdraw from the nut by rotating the screw cap after pouring is completed, so that the threaded rod, the screw cap and the gasket can be reused, and the loss cost is reduced; the through hole in the convex part of the screw cap can be matched with non-professional tools such as a common tapered rod or an iron rod to realize disassembly, disassembly can further be realized by professional tools such as wrenches, and the aluminum alloy template system receiving template embedded device is very convenient.

The invention discloses a reciprocating grate of a biomass gasification furnace. The reciprocating grate of the biomass gasification furnace comprises a support and a plurality of grate bridges which are installed in the support side by side. A swing arm is fixedly connected to the end of each grate bridge. All the swing arms are connected with the same linkage rod. One end of the linkage rod is connected with a power source through a push-and-pull power head. The linkage rod is pushed and pulled by the power source through the push-and-pull power head to pull the swing arms to reciprocate, and then the grate bridges are driven to rotate in a reciprocating mode, so that gaps between the grate bridges are made to become large and small alternately. The reciprocating grate of the biomass gasification furnace is compact in structure and easy and convenient to operate, and the slag discharge gaps can change dynamically; the ash passing capacity is high, and the wind resistance is small; the covering performance is good when deslagging is not conducted; due to the fact that the reciprocating grate is of a hollow structure, the weight is low; the service life of equipment is long; the reciprocating grate can turn in a reciprocating mode so that connection of water pipes can be simplified, and the fault rate is decreased; continuous deslagging can be conducted without stopping the furnace, and thus the production stability is guaranteed; the labor intensity of operators is relieved, fuel waste caused by starting of the stopped furnace is also reduced, and accordingly economic benefits are greatly increased.

The invention discloses a rolling rotor type refrigeration compressor, comprising an air inlet pipe, an air outlet pipe, a motor and a rolling rotor type compression device, wherein a magnetic coupling is connected between the motor and the rolling rotor type compression device. The magnetic coupling consists of a shield cover, the opening part of the shield cover is fixedly arranged the mouth ofthe case of the rolling rotor type compression device, and forms a sealing cavity with the case of the compression device. Ammonia can be used as refrigerant of the compressor, the atmospheric ozone layer is not damaged, and no greenhouse effect is caused, therefore, the invention has good environment protection effect. The compressor can be applied to domestic small air conditioners, as well as other fields needing gas compression and including refrigeration.

The object of the present invention is to provide a gas detection device. Specifically, the gas detection device includes: an optical filter, wherein the transmission band of the optical filter includes the corresponding infrared absorption peak wavelength of the gas to be detected; an uncooled infrared detector is used to acquire and output The infrared imaging information of the light sheet; the infrared lens is used to converge the infrared rays of the object to the uncooled infrared detector. Among them, compared with the prior art, the present invention implements a gas detection device by combining an optical filter with an uncooled infrared detector. The beneficial technical effect of the detector as a detector is mainly reflected in no refrigeration, low power consumption, small size, miniaturization, quick start, more convenient to carry, light weight, long service life, low cost, etc.; and the optical path of the present invention not only It is simple and easy to implement, and also reduces equipment production costs and the like.

A vibration damping automobile luggage rack comprises two fixed rods, a luggage basket and elastic ropes. Clamping rings are arranged at the both ends of each fixing rod. The luggage basket is arranged between the two fixed rods. The interior of the luggage basket is provided with vibration dampers. The vibration dampers are hollow spherical. The elastic ropes are also arranged on the fixed rods.The vibration damping automobile luggage rack solves the problem that the space inside the automobile is not enough when a large amount of luggage is transported, the storage space of the automobile is increased, the luggage basket and the elastic ropes are arranged, so that the luggage can be fixed conveniently, the vibration dampers are arranged, so that vibration generated during running of theautomobile can be effectively relieved, and the luggage basket is tough and wear-resistant, has a good anti-aging effect and long service life, is lighter in weight when being compared with a metal basket and is not prone to being corroded.

The invention relates to a tension resistant four-serial string whole composite insulator replacing device which belongs to the technical field of power line maintaining tools. The invention aims to provide a tension resistant four-serial string whole composite insulator replacing device which has simple and portable structure, convenient and rapid operation and safe use. The tension resistant four-serial string whole composite insulator replacing device comprises a front end wing-shaped clamp, a rear end wing-shaped clamp, a screw rod, a pull plate and Y-joints, wherein the lower part in themiddle of the front end wing-shaped clamp is provided with a transverse clamping groove (11); both sides of the lower part of the clamping groove are provided with vertical screw holes (12); both wing ends of the front end wing-shaped clamp are respectively provided with a screw hole (13); the rear end wing-shaped clamp (6) is formed in such a way that two symmetrical assemblies are connected by a bolt; grooves (81) symmetrically arranged in the combining part of the two symmetrical assemblies are formed into a through hole (81); both wing ends of the rear end wing-shaped clamp are respectively provided with a screw hole (83); and the Y-joint (2A), the screw rod (3), the Y-joint (2B), the pull plate (5) and the Y-joint (2C) are sequentially connected between both wing ends of the front end wing-shaped clamp and the front end wing-shaped clamp.

The present invention disclosed a split type two-phase fluid level controller. It is composed of industrial container, steam flow transmitter, throttling pressure-reducing element and two-phase fluid controller. Said invention utilizes the flowing characteristics of steam and liquor two-phase fluid to change the capability for outputting liquor so as to attain the goal of controlling level.

The invention provides a light-and-convenient-type pedal which comprises a pedal main body. The pedal main body comprises two mutually-crossed X-shaped steel supporting strip blocks. Mounting holes used for being fixedly connected with a mounting shaft of the light-and-convenient-type pedal are formed in the supporting strip blocks, and arc-shaped supporting ribs are fixedly connected between thetwo adjacent supporting strip blocks in the direction perpendicular to the central axes of the mounting holes. The thicknesses of the supporting ribs are the same as those of the supporting strip blocks, and strip-shaped grooves are formed in the upper end face of the pedal main body. Anti-slip strips made of elastic anti-slip rubber are connected into the strip-shaped grooves in a clamped mode. The light-and-convenient-type pedal has the beneficial effects that the mechanical strength of the pedal main body can be remarkably improved through steel materials, and thus the contribution is madefor prolonging of the service life of the pedal; and through the crossed structure of the supporting strip blocks, the structure of the pedal main body is simplified while it is ensured that the pedalmain body has the high mechanical strength, so that the pedal main body has the functions of being convenient to machine and use.