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32results about How to "Reliable Correction" patented technology

Jacking device for deviation rectification of steel pylon in mining area of coal mine

The invention discloses a deviation rectification device for a steel pylon, and particularly relates to a jacking device for deviation rectification of the steel pylon in a mining area of a coal mine. The jacking device for deviation rectification of the steel pylon in the mining area of the coal mine comprises an independent long-column concrete foundation (1), foundation bolts (3) and a pylon leg plate (4) capable of being jacked, wherein the pylon leg plate capable of being jacked (4) comprises a base plate (6) and a steel pylon principle material connecting plate (8) welded to the base plate (6), the steel pylon principle material connecting plate (8) is welded to a steel pylon principle material (5) along the edge, the base plate (6) of the pylon leg plate capable of being jacked (4) is connected with the independent long-column concrete foundation (1) through the foundation bolts (3), loading holes (7) used for installation of jacks (2) are formed in the independent long-column concrete foundation (1), and the length of exposed screw threads of each foundation bolt (3) is no smaller than 150mm. According to the structural system, the jacking device for deviation rectification of the steel pylon in the mining area of the coal mine is simple in structure, when the steel pylon inclines, the foundation bolts (3) are loosened, the jacks can be used for directly jacking the pylon leg plate capable of being jacked, and deviation rectification can be carried out.
Owner:STATE GRID CORP OF CHINA +2

A kind of tilt adjustment device of transmission tower in coal mining area

The invention discloses a device for adjusting an inclined steel pylon in a mining area of a coal mine. The device for adjusting the inclined steel pylon in the mining area of the coal mine comprises foundation bolts, a pylon leg plate capable of being jacked, a steel pylon foundation and a base, wherein the pylon leg plate capable of being jacked is connected with the steel pylon foundation through the foundation bolts, the base is arranged on the outer side of the bottom of the steel pylon foundation, the pylon leg plate capable of being jacked comprises a base plate, a steel pylon principle material connecting plate and two bearing U-bars, the steel pylon principle material connecting plate is welded to the base plate, the bearing U-bars are welded to the base plate in a parallel mode, the steel pylon principle material connecting plate is welded along the edge of a steel pylon principle material, a connecting U-bar is perpendicularly welded to one end of one of the bearing U-bars and the end, corresponding to the end of the bearing U-bar, of the other bearing U-bar, and a connecting U-bar is welded to the other end of one of the U-bars and the end, corresponding to the other end of the U-bar, of the other U-bar, the connecting U-bars are arranged above the base, and the length of exposed screw threads of each foundation bolt is no smaller than 150mm. The device for adjusting the inclined steel pylon in the mining area of the coal mine has the advantages that due to the facts that when the steel pylon is installed, the pylon leg plate capable of being jacked is arranged in advance, and the connecting U-bars on the pylon leg plate capable of being jacked are arranged corresponding to the base used for placement of jacks, deviation rectification can be carried out on the inclined steel pylon safely, correctly and reliably, and the frequency of the inclination phenomenon of the steel pylon can be effectively reduced.
Owner:STATE GRID CORP OF CHINA +2

A method for controlling the concentricity between the deep hole and the outer circle of a deep hole piston rod

The invention provides a deep hole piston rod deep hole and outer circle coaxiality control method. The method comprise the following steps that (a) the end face of the large-head end of a piston rodand the end face of the hole opening end of the piston rod are flatten through turning, outer circles of the piston rod undergo semi-finish turning, and a blind hole is drilled from the center of thehole opening end; (b) the wall thickness of one circle at the deep part of the blind hole is measured, and the correction size of the outer circle of the large-head end is calculated; (c) the positioncorresponding to the central axis of the blind hole is found on the outer circle of the large-head end by utilizing the correction size, and two reference outer circles are turned on all the outer circles of the piston rod correspondingly; and (d) the two reference outer circles are used as reference, the piston rod is fixed, the end face of the large-head end is flattened through turning, the center hole of the end face of the large-end is corrected, the outer circle at the large-head end is turned to meet the required size through the center hole of the large-head end, the end face of the hole opening end is flatten through turning, a rabbet of the hole opening end is turned, and other outer circles are turned to meet the required sizes through the rabbet of the hole opening end. According to the deep hole piston rod deep hole and outer circle coaxiality control method, the advantages that the design is novel, the product quality is good, the production cost is low, and the production efficiency is high are achieved.
Owner:ZHENGZHOU COAL MINING MACHINERY GRP +1

Rotary pre-correction device for silicon wafer

The invention discloses a rotary pre-correction device for a silicon wafer. The device comprises a machine frame, a placing platform driven by a lifting driving device is arranged on the machine frame, a silicon wafer containing box is positioned on the placing platform, a horizontal support is arranged on the machine frame, a vertical driving mechanism is arranged on the horizontal support, a supporting base is driven by the vertical driving mechanism, a correcting mechanism is installed on the supporting base in a rotating mode, and the correcting mechanism and the opening end of the siliconwafer containing box are arranged on the same side. The supporting base is driven by the vertical driving mechanism to ascend and get close to the silicon wafer in the silicon wafer containing box; then force is applied to the silicon wafer through the rotating correcting mechanism, and the silicon wafer abuts against the end arm on the silicon wafer containing box, so that before the silicon wafer is transferred to the photoetching machine, the reset correction work of the silicon wafer (the position of the silicon wafer is changed) is completed, the accuracy of transferring the silicon wafer to a photoetching area is improved, and the continuity and the working efficiency of normal working of the photoetching machine are effectively guaranteed.
Owner:江苏晋誉达半导体股份有限公司

Method for Predicting Mechanical Properties of Tire on Flat Pavement Based on Drum Test Rig Test Data

ActiveCN104390794BReliable CorrectionThe mechanical properties of flat pavement are accurately obtainedVehicle tyre testingFinite element techniqueRoad surface
The invention discloses a method for predicating flat-pavement mechanical properties of a tyre based on test data of a rotary drum test bed. The method comprises the following steps of: setting load, tyre pressure, pavement rough state, rolling speed and movement working conditions (lateral deviation, lateral inclination, and the like) of the tested tyre, and implementing the tests and the simulations in the following steps under the conditions; establishing a model for the tested tyre by utilizing ABAQUS software, and respectively stimulating movement of the tyre on inner rotary drum pavement and outer rotary drum pavement; simultaneously correcting the tyre model by using the test data of the inner rotary drum test bed and the outer rotary drum test bed; simulating the tyre movement under the special condition on the flat pavement by using the corrected precise tyre model so as to precisely predicate the flat-pavement mechanical properties of the tyre. The method disclosed by the invention can be used for effectively eliminating influences of the pavement curvature by utilizing the tested data of the rotary drum test bed through a finite element technology to obtain the mechanical properties of the tyre on the flat pavement, has the advantages of simple needed test equipment and high predication precision. Meanwhile, the method is suitable for all tyres including large-load and high-rotation-speed aircraft tyres.
Owner:JILIN UNIV
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