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54results about How to "Improve work safety" patented technology

Structure of mechanical arm transmission structure

A mechanical arm transmission structure includes a tubular horizontal base, a drive belt wheel and a driven belt wheel mounted inside the horizontal base, a transmission belt mounted on the drive belt wheel and the driven belt wheel with the upper part thereof suspending above the horizontal base, a motor mounted outside the horizontal base for rotating the drive belt wheel through a speed reducer, a slide movable with the transmission belt along longitudinal rails at the top of the horizontal base and carrying a mechanical arm, and a holding down block fastened to the bottom side of the slide to affix the slide to the upper part of the transmission belt for allowing movement of the slide with the transmission belt along the longitudinal rails.
Owner:CHANG SHU MAN

Portable cutting machine

A portable cutting machine is provided with: a cutting machine main body (3); a saw blade (1) provided rotatably with respect to the cutting machine main body (3); an electric motor (2) adapted to drive the saw blade (1); a handle (4) which is provided between the saw blade (1) and the electric motor (2) in a first direction parallel to a rotation shaft (9) of the saw blade (1) and extends in a second direction perpendicular to the first direction; a battery pack (5) adapted to drive the electric motor (2); and a surface plate (6) rotatably supported by the cutting machine main body (3). A center in the first direction of the battery pack (5) is located closer to a side of the electric motor (2) than a center in the first direction of the handle (4). The rotation shaft (9) of the saw blade (1) is located on one side of the surface plate (6). A part of the saw blade (1) passes through an opening portion (16) penetrating through the surface plate (6) and is exposed to the other side of the surface plate (6). A projecting amount of the saw blade (1) by which the part of the saw blade (1) projects from the other side of the surface plate (6) is changeable by changing an angle of the surface plate (6) with respect to the cutting machine main body (3). A cutting-depth adjusting mechanism adapted to change the angle of the surface plate (6) with respect to the cutting machine main body (3) is located, in the first direction, closer to a side of the saw blade (1) than the battery pack (5).
Owner:MAX CO LTD

Process and system for striping and mining solid ore rock masses of surface mine

InactiveCN102562070AImproved drilling processLarge block rate and gun root residual rate decreasedOpen-pit miningPetrologyDrill hole
The invention relates to a process for striping and mining solid ore rock masses of a surface mine, which comprises a step of drilling a blast hole array, wherein the blasthole array comprises a plurality of rows of blast holes; adjacent rows of blast holes are mutually staggered along the directions of the rows; each blast hole corresponds to a non-blast hole of the adjacent row of blast holes; on each row, the distance between each two adjacent blast holes serves as a hole pitch; and the distance between each two adjacent blast hole rows serves as a row pitch. The process is characterized in that a small-aperture drill bit and a small hole network spacing are selected to drill the holes; the rock drilling speed is improved for more A times than before; the construction operation is carried out according to the small hole network spacing; the number of the drilled holes is increased to B times that of the original drilled holes; the area of each drilled hole is equivalent to one Bth of the area of the original drilled hole; and both A and B are natural numbers greater than 1. According to the invention, the boulder frequency and the blast root residual ratio can be greatly reduced, the striping and mining operations are continuously carried out, the process is convenient to operate, other investment is not required, the explosive load is unchanged, the drilling time is shortened, and the secondary blast quantity is greatly reduced.
Owner:江西分宜珠江矿业有限公司

Festival lamp string & its manufacturing method

The present invention involves to a festival lamp string comprised of cords, a certain number of sockets and coordinated illuminators; said illuminators are individually and sequentially connected with the cords, said socket is molded over the contacting portion of the illuminator and the cords by filling package. In manufacturing, firstly connects the sockets to the cords sequentially and individually, then cover the decorated cap on the illuminator respectively, next place the assembled cords and illuminator and the decorated cap into the inside of jetting molder so that the contacting portions of the cords and illuminator and the decorated cap are exactly laid on the die cavity, finally inject resinoid into die so as to fill up all the cavity of the die to form a socket covering the contacting portions of the cords and illuminator and the decorated cap, the temperature of the resinoid is lower than 80° C., so a festival lamp string with decorated cap is manufactured. It possesses some features, such as simple structure, less parts and good tightness which can be used in wider range whatever commercial power or not, wherever inside or outside, and it is also to simplify operation, improve work safety and up-to-standard rate, and suit to industrial scale production.
Owner:CHEN MING PEI

Method, System and a Computer Program Product for Condition Monitoring of a Continuous Element Moving in a Fiber Web or Paper Finishing Machine

The invention relates to a method for monitoring the condition of a continuous element (44) moving in a fiber web or paper finishing machine, said monitoring being performed with a rotating machine element (41), which is equipped with a sensor assembly (24) that measures force or pressure and against which the continuous element moves. In the method, the machine element is made to rotate against the continuous element, a measurement signal (25) is generated between the machine element and the continuous element with the sensor assembly, and a cross-directional profile (21) of force or pressure generated between the machine element and the continuous element is formed from the measurement signal. Said moving continuous element is a fabric (32, 33) installed in a fabric run (22, 23) traveling via the machine element. In the method, the fabric is additionally installed in a fabric run, wherein it moves via said machine element equipped with a sensor assembly, a reference profile (35) is formed for the cross-directional profile after installing the fabric in the fabric run, the cross-directional profile formed from the measurement signal and representing force or pressure generated between the machine element and the fabric is compared with the reference profile, and information (37) is produced from the comparison for monitoring the condition of the fabric. The invention also relates to a corresponding system and a computer program product.
Owner:VALMET TECH OY
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