49results about How to "Good preload effect" patented technology

The invention discloses an automatic adjustment type steel wire rope tensioning device. The automatic adjustment type steel wire rope tensioning device comprises a base, guide wheels, tensioning wheels, a rotating shaft, a fixed shaft, a swing arm, a fixing piece and torsional springs, wherein the guide wheels are fixed on the base; the tensioning wheels are matched with the guide wheels; the rotating shaft is connected onto the base in a rotating mode, and driving gears are fixed on the rotating shaft; the fixed shaft is fixed on the base, and driven gears engaged with the driving gears are connected onto the fixed shaft in a rotating mode; the swing arm is connected onto the fixed shaft in a rotating mode, one end of the swing arm is coupled with the tensioning wheel; the fixing piece is used for realizing relative fixation of the rotating shaft and the base; the torsional springs are also arranged on the fixed shaft in a sleeving mode, one end of each of the torsional spring is fixed with the swing arm, and the other ends of the torsional springs are fixed with the driven gears. The automatic adjustment type steel wire rope tensioning device is compact in structure, high in pretensioning efficiency, adjustable in pretensioning force, good in pretensioning effect and low in manufacturing cost, meanwhile can realize automatic pretensioning, and can be applied to small and light instruments.

The invention relates to the field of electromechanical equipment installation, in particular to an electromechanical equipment damping and supporting device. The device comprises a supporting tank and an equipment supporting platform, the supporting tank is fixedly installed on a supporting base, and the outer wall of the top of the supporting tank is fixedly provided with elastic supporting parts used for buffering and supporting the equipment supporting platform. A supporting toothed plate is fixedly installed on the bottom surface of the middle of the equipment supporting platform, a supporting rotating shaft is rotatably erected at an upper opening of the supporting tank, and an annular gear meshed with the supporting toothed plate is mounted in the middle of the supporting rotating shaft. A rotating screw rod linked with the supporting rotating shaft through a gear transmission assembly is rotationally arranged in a lower inner cavity of the supporting tank, external threads aremachined on the outer rings of the two sides of the rotating screw rod, and the outer rings of the two sides of the rotating screw rod are sleeved with supporting screw sleeves through threaded connection. The damping and supporting device can achieve effective buffering and supporting effects on shaking of the equipment supporting platform in the vertical direction.

The invention relates to a multipoint local pretightening method for adjustable load sharing mechanisms, which belongs to the field of a sensing test method and a sensing test device. The method realizes multipoint local pretightening by adjustment of a pretightening screw to drive a pretightening slider, and realizes adjustment of structural parameters through a mounting length adjustable measuring rod. The multipoint local pretightening method adjusts the length of the measuring rod according to the actual demand of measurement and assembly, performs multipoint local pretightening force adjustment, and makes the measuring rod exerted by the pretightening force. The device adopted comprises six groups of adjustable load sharing mechanisms with the same structures, wherein each group of adjustable load sharing mechanisms consist of an upper platform, a lower platform, the pretightening screw, the pretightening slider, an upper connecting rod, a lower connecting rod, an upper round nut,a lower round nut, an upper connecting flange, a lower connecting flange, a group of piezoelectric quartz sensors and a positioning ring. The multipoint local pretightening method realizes multipointlocal pretightening and adjustment of the structural parameters, and has the characteristics of good pretightening effect, strong large-load sharing capacity, convenient assembling operation, high precision, good stability and simple structure.

The invention discloses a six-dimensional force sensor with the parallel-connected structure of seven rods that are integrally pre-tightened and asymmetrically arranged in an upper layer and a lower layer, which is characterized in that a force measuring platform (1) consists of a chassis and a supporting disk that are fixedly connected, three oblique ball socket holders (4) are evenly arranged on the upper surface and the lower surface of the chassis, and a round ball socket holder (6) is fixed at the center of the lower surface of the chassis; three oblique ball socket holders (4) are evenly arranged on the top inner loop surface of a pre-tightening platform (2); three oblique ball socket holders (4) are evenly arranged on the upper surface of a base (8), and a round ball socket holder (6) is fixed at the center of the upper surface of the base (8); a detecting component (3) and the oblique ball socket holders (4) as well as a middle detecting component (5) and the round ball socketholder (6) respectively form conehead-typed spherical pairs, and all the detecting components are connected with the pre-tightening platform (2), the force measuring platform (1) and the base (8) by bolts, pre-tightened and closed. The six-dimensional force sensor has simple structure, simple and convenient measuring principles, high measuring precision and larger loaded tilting moment, and can be applied to various situations that need six-dimensional force measurement in the fields of robots and aviation, etc.

The invention provides a locking pluggable structure for electronic socket installation. The locking pluggable structure comprises a data pin, a data socket, locking holes, locking hooks, locking handles, check sliding blocks, embedded inclined planes, sliding grooves and springs; two sets of the check sliding blocks are correspondingly slidably connected to the left side and the right side of thedata pin; the check sliding blocks and the data pin are correspondingly connected through two sets of the springs in an elastic mode; the data pin is connected with the data socket in an inserting mode; two sets of locking shafts are correspondingly and axially connected to the left side and the right side of the data pin; and the data pin and the data socket are connected through the locking shafts in a locking mode. According to the locking pluggable structure for the electronic socket installation, the operation of the pluggable structure is convenient, the quick locking and loosening canbe achieved, the locking effect is good, and meanwhile, a stopping function is provided, the loosening of a locking mechanism caused by the impacts of vibration and the like are prevented, and the pluggable structure is not only suitable for RS-232 interfaces, but also suitable for other interfaces with locking needs meanwhile.

The invention discloses a six-dimensional force sensor with the parallel-connected structure of eight rods that are integrally pre-tightened and symmetrically arranged in an upper layer and a lower layer, which is characterized in that a force measuring platform (1) consists of a chassis and a supporting disk that are fixedly connected, and four ball socket holders (4) are evenly arranged on the upper surface and the lower surface of the chassis of the measuring platform (1); a pre-tightening platform (2) adopts a shell component, and four ball socket holders (4) are evenly arranged on the topinner loop surface of the pre-tightening platform (2); four ball socket holders (4) are evenly arranged on the upper surface of a base (6); a detecting component (3) and the ball socket holders (4) form conehead-typed spherical pairs that are distributed on the upper and lower sides of the chassis of the measuring platform (1), and the detecting component (3) is connected with the pre-tighteningplatform (2), the force measuring platform (1) and the base (6) by pre-tightening bolts (5), pre-tightened and closed. The six-dimensional force sensor has simple structure, simple and convenient measuring principles, high measuring precision, easy formation of precision and series and larger loaded tilting moment, and can be applied in various situations that need six-dimensional force measurement in the fields of robots and aviation, ect.

The invention discloses an exhaust system mounting nut. The exhaust system mounting nut comprises an anti-loosening end and a buffering end located under the anti-loosening end, and the buffering end and the anti-loosening end are of an integrated structure. The anti-loosening end is provided with an inner threaded hole. A through hole communicating with the inner threaded hole is formed inside the buffering end. A tightening portion and a pressing portion are arranged on the outer side face of the buffering end. The pressing portion is located below the tightening portion. The outer side face of the anti-loosening end is round and is provided with squeezing grooves symmetrically distributed around the axis of the anti-loosening end, and the inner threaded hole is oval after being squeezed. The exhaust system mounting nut aims to prevent loosening and improve the sealing performance of an exhaust manifold of an engine with a turbocharger.