31results about How to "Guaranteed friction performance" patented technology

The invention discloses an automatic board continuous layer conveyor and belongs to the technical field of sheet board conveying machinery. The board continuous layer conveyor comprises a machine frame, a pair of revolving platform elevating mechanisms which are mutually corresponding, a revolving type layered board sending mechanism, a first revolving frame driving action cylinder and a second revolving frame driving action cylinder; the machine frame comprises a first wallboard, a second wallboard, a revolving platform elevating mechanism connecting shaft and a bottom beam; the revolving type layered board sending mechanism is supported between central shafts of a first revolving frame and a second revolving frame; the pair of revolving platform elevating mechanisms comprise revolving platform lifting action cylinder chains and chain wheels; the revolving type layered board sending mechanism comprises a first revolving frame, a second revolving frame, a sheet wood conveying platform panel, an input roller, an input pressing roller, an output roller and an output pressing roller; front ends of the first revolving frame and the second revolving frame are provided with sheet wood input pressing roller lifting and pressing mechanisms; a power transmission mechanism is arranged on the first revolving frame; a sheet wood deflection proof mechanism is arranged between a first bearing beam fixing base and a second bearing beam fixing base; sheet wood input and output pressing rollers are rubber rollers. The board continuous layer conveyor reduces the operation intensity, saves manpower, guarantees a friction effect between sheet wood and reduces movement resistance to the sheet wood.

The invention discloses a preparation method of a ceramic reinforced carbon / carbon composite material brake disc. The preparation method comprises the following steps that a carbon fiber prefabricatedbody is put into a deposition furnace, firstly, a chemical vapor-phase permeation process is adopted, then liquid-phase resin or liquid-phase asphalt is used for carrying out a dipping-carbonizationprocess, and a carbon / carbon composite material brake disc blank body is obtained; a liquid-phase siliconizing treatment is carried out on the blank body so as to obtain a disc body with the density of 2-2.2 g / cm<3>; and machining is carried out according to the shape and the size of the required brake disc so as to obtain the ceramic reinforced carbon / carbon composite material brake disc. According to the preparation method, the reasonable composition proportion and the preparation process are adopted, so that the high-quality ceramic reinforced carbon / carbon composite material brake disc with excellent mechanical property, oxidation resistance, friction resistance and wear resistance is prepared; the bake disc is light in weight, good in braking performance, short in production period and capable of realizing industrial production, the brake performance of a brake system of a transport vehicle can be improved, the weight of the brake system can be reduced, the service life of the brake disc is prolonged, and a good market prospect is achieved.

The invention discloses a maintenance construction method of an asphalt road surface solid permeability wearing layer. The construction method includes the following steps that the spreading amount ofa solid permeability agent is surveyed; a road surface is cleaned; the road surface is pre-processed; the solid permeability agent is sprayed; a wearing layer is spread; manual trimming is carried out; preliminary maintenance is carried out. According to the maintenance construction method, the solid permeability agent is demulsified immediately after being atomized or smeared on the original road surface, heavy cycloparaffin distilled oil rapidly infiltrates to restore old asphalt performance, early diseases of the original asphalt road surface are repaired, and meanwhile a matrix asphalt and tackifier mixture is left on the road surface to form a binding layer. A solid permeability layer is formed by the repaired original asphalt road surface and the binding layer. The maintenance construction method is high in construction speed and efficiency.

The invention discloses a drying device for printed products, which comprises a seat box plate, a partition plate is fixedly connected to the top of the seat box plate, an air hole is opened in the middle of the top of the partition plate, and the top of the partition plate is located at A heating mechanism is movably connected to the outer side of the airflow hole, and the middle and lower positions of the inner surface of the heating mechanism are movably connected to a distribution shelf, and the top of the distribution shelf is movably connected to an airflow fan, and the top of the partition plate is movably connected to a Conveying rollers, the top of the partition plate is located outside the heating mechanism and between the conveying rollers are provided air hole slots. The present invention relates to the field of printing technology. By placing the printed product vertically and using the airflow to continuously blow upwards, the wind resistance generated by the wind will inhibit the weight of the printing dye from falling, preventing the printed dye from penetrating or dripping to the surrounding area, and reducing its damage to the quality of its own products , to ensure the safety of the surrounding environment.

The invention belongs to the field of structural design of stirring equipment, and in particular relates to a composite bearing deflection limiting device for a stirring shaft. The composite bearing deflection limiting device comprises a bearing block and a support frame, wherein the bearing block comprises an outer ring sleeve directly sleeving a shaft body of the stirring shaft, and a hole wall of the outer ring sleeve is spaced from the shaft body of the stirring shaft; a plurality of roll shaft parts are annularly arranged on the hole wall of the outer ring sleeve along the axial line of the hole wall, each roll shaft part comprises a stator shaft and a rotating sleeve, and the axial line of the outer ring sleeve, the axial line of a stator shaft and an ideal axial line of the stirring shaft are coaxially and vertically arranged; a section, matched with the rotating sleeve, of the stator shaft has a spindle-shaped structure, and the rotating sleeve correspondingly has a sleeve structure with a concave spherical inner cavity; on the axial cross section passing through the axial line of the stator shaft, the diameters of generatrixes of the stator shaft and the rotating sleeve at sections matched with each other are consistent and the circle centers are positioned on the same horizontal plane, and the diameter of the generatrix at a hole cavity of the rotating shaft is greater than that of the generatrix of the stator shaft. By adopting the composite bearing deflection limiting device provided by the invention, the effect of fixing the shaft body of the stirring shaft within an allowed deflection quantity range can be realized.