7results about How to "Friction minimization" patented technology

The utility model relates to the technical field of structural parts of optical element devices, and discloses an optical fiber transmission clamp which comprises a transmission insertion core which is provided with a through hole with the aperture size changing from large to small and is used for enabling an optical fiber to penetrate in from the large-aperture end of the through hole and penetrate out from the small-aperture end for transmission, and the small-aperture end is used for carrying out radial positioning on the optical fiber; the insertion core clamping device is used for elastically clamping the transmission insertion core in a fixed state and fixing and positioning the transmission insertion core; and the base is used for coaxially assembling a plurality of insertion core holders so as to ensure that the optical fiber is stably and optically coaxially transmitted between two adjacent transmission insertion cores. Through the accurate aperture design, the use of the elastic clamp holder and the design of the coaxial base, the technical problems of the existing optical fiber transmission clamp in the aspects of operation complexity, optical fiber damage, poor consistency and the like are effectively solved, and the optical fiber transmission efficiency and reliability are improved.

This invention relates to a roller chain (10) for a circulating rolling module (20) for offshore applications. The roller chain (10) includes a plurality of rollers (11), each mounted on a shaft (12). The rollers (11) are free to rotate relative to their associated shafts (12). The cylindrical inner surface (112) of the rollers (11) and the outer surface (121) of the shafts (12) define sealed cavities (15) filled with lubricating fluid. Each shaft (12) is rotatably locked together with at least one associated link (13) by a rotational locking device (16).

The utility model relates to the technical field of mechanical engineering, and discloses a linear sliding table with a single-roll type ball backflow device, which comprises a carrying table, a first mounting hole, a first fastening bolt, a second vertical wall, a ball backflow channel, a ball, an end cover, a fourth mounting hole and a third fastening bolt, the second vertical walls are arranged in the width direction of the base, ball backflow channels are arranged on the outer sides of the second vertical walls, the upper end of the base is provided with a threaded sleeve opposite to the second backflow grooves, and the backflow grooves form a part of the ball backflow channels to guide balls to circulate in a specific path. According to the linear sliding table with the single-roll type ball backflow device, by means of the precisely-machined ball backflow channel and the selected balls, the linear sliding table device can achieve very smooth and precise linear motion, and friction and abrasion caused by direct contact are reduced through circulating motion of the balls in the backflow channel; and the precision in long-term operation is ensured to be unchanged.

The present invention provides a reclining device for a vehicle seat, comprising: a gear plate in which an outer gear provided on an outer diameter portion meshes with an inner gear provided on an inner diameter portion of a flange and which has a receiving portion in the inner diameter portion; and a first cam and a second cam assembled between a flange protrusion protruding from a center of the flange and a bearing inserted into the accommodating portion, an outer diameter portion of the first cam and the second cam including a first outer diameter portion and a second outer diameter portion extending from the first outer diameter portion, the first outer diameter portion is in contact with an inner diameter portion of the bearing, and the second outer diameter portion is spaced apart from and not in contact with an inner diameter portion of the gear plate.

The present invention relates to a regulating valve for a gas cooker and a gas cooker incorporating the regulating valve. The regulating valve comprises: a body having at least one gas outlet pipe and a housing comprising at least one outlet hole in fluid communication with the outlet pipe; a turntable arranged in the housing; a spring axially retaining the turntable in the housing; and a sealing device surrounding at least one outlet hole. The sealing device comprises a gasket comprising: a closure member associated with and surrounding each outlet hole; and at least one attachment arm attached to the at least one closure member, the at least one attachment arm comprising at least one protrusion, wherein when the turntable is pressed on the gasket, the turntable is supported on the closure member and the protrusion.

The present invention relates to a positioning device, in particular a wafer transport container positioning device, for positioning a wafer transport container (10a-d) at a loading and / or unloading position of a loading and / or unloading station (14a-d) at least provided for loading and unloading wafers (12a-d) from the wafer transport container (10a-d). It is proposed that the positioning device, in particular the wafer transport container positioning device, has a positioning mechanism (16a-d), which is provided for contactless positioning of the wafer transport container (10a-d) during the connection process between the wafer transport container (10a-d) and the loading and / or unloading station (14a-d).