摘要:
A power transmission apparatus is disclosed. A power transmission apparatus that includes: a bracket, in which a hinge cavity is formed; a hinge axis, which is rotatably joined to the hinge cavity; a friction bearing, which is positioned between the hinge axis and an inner wall of the hinge cavity, and which is configured to provide a predetermined friction; and a gear module, which is joined to the hinge axis, and which is configured to provide a rotational force to the hinge axis, can provide sufficiently high deceleration and high torque, even when a low-capacity motor having a low cogging torque is used. Also, the power transmission apparatus can be made safer and less noisy for not only automatic operation by the motor but also manual operation by a user, while the gear module, motor, etc., can be protected from excessive loads.
摘要:
A display rotation apparatus and a method of joining the display rotation apparatus with a display. The display rotation apparatus, which includes a fixed body, an arm part having one end joined to the fixed body, a hinge member joined to the other end of the arm part, and a guide member rotatably joined to the hinge member, can adjust the joining point according to the center of mass of the display.
摘要:
A display rotation and extension apparatus and a control method thereof are disclosed. A display rotation apparatus that includes a support body, a universal joint which is coupled to the support body, a movable body which is coupled to the universal joint, a driving part which is coupled to the support body and the movable body and which rotates the movable body about the universal joint, and a rotation sensing part which is attached to the driving part and which senses the degree of rotation of the movable body, allows the display to be rotated automatically and manually in every direction, and allows auto-centering for the display by remote controlling
摘要:
The present invention relates to a display rotation apparatus. The present invention provides a display rotation apparatus, including a support, a universal joint coupled to the support, a movable body coupled to the universal joint, a driving part coupled to the movable body for rotating the movable body about the universal joint.
摘要:
A display rotating apparatus capable of preventing a slip phenomenon which occurs by rotary inertia. The display rotating apparatus comprises: a motor providing a driving force for rotating a display; and a motor driving device driving to rotate and stop gradually by increasing a rising time and a falling time of a rotation command signal. the display rotating apparatus can remove the slip phenomenon generated mechanically by increasing or decreasing slowly an applying voltage and/or current applied to the motor and reduce the sway by vibration at the time of stopping the display.
摘要:
The present invention provides to a method for removing nitrogen and phosphorous in wastewater simultaneously from wastewater by employing fermentation broth obtained by anaerobic fermentation of organic solid wastes. The method for removing nitrogen and phosphorous in wastewater of the invention comprises the steps of subjecting organic waste material to anaerobic fermentation at 30 to 40° C. for 2 to 4 days by using anaerobic sludge to obtain fermentation broth; and, adding the fermentation broth to a sequencing batch reactor with alternating anaerobic-aerobic-anoxic cycles under anaerobic and anoxic conditions in a separate manner. In accordance with the present invention, nitrogen in the influent wastewater can be removed more than 95% in total and phosphorous concentration can be kept below 1 ppm regardless of the concentration of organic materials in the influent wastewater. Further, the present method requires no extra pretreatment steps or chemicals which are essential to remove residual ammonia nitrogen in the prior art systems, and lowers the overall cost for wastewater treatment due to the usage of organic waste materials.
摘要:
A reflecting mirror tilting actuator comprises a base having an inner space defined therein, a mirror holder having a fixing part fixed to the base and a horizontal part integrally connected with the fixing part by a resilient connection part, the mirror holder being provided with at least one resilient member for resiliently supporting the reflecting mirror upward, a mirror supporting unit having a cover attached to the horizontal part and a mirror stopper disposed between the horizontal part and the cover, a tilting unit having an actuating member whose upper end comes into contact with the horizontal part and a tilting stopper whose upper end comes into contact with the horizontal part, and a horizontal adjusting unit having at least one adjustment screw, whose lower end contacts the mirror stopper through at least one adjustment hole formed at the cover, for adjusting flatness of the reflecting mirror.
摘要:
A tilting device is disclosed. The tilting device may include: an arm, on which a tilt-shaft is formed; a tilt-base coupled to the tilt-shaft in a manner that allows tilting; a pulley rotatably coupled to the tilt-base; a wire, which is wound around the pulley, and of which either end is coupled to either side of the arm on opposite sides of the tilt-shaft; and a driving unit, which drives the pulley. An embodiment of the invention enables tilting operations using a smaller driving device, and also allows manual operations.