58results about How to "Reduce longitudinal vibration" patented technology

The invention discloses a double-station automatic feeding device for silicon steel sheet welding. The double-station automatic feeding device comprises a workbench provided with a welding station, and a welding mechanism and a pressurization mechanism which are arranged above the workbench and are opposite to the welding station. The double-station automatic feeding device is characterized in that parallel guide rails which pass through the welding station are arranged on the workbench; two sliding carrying tables used for placing silicon steel sheet locating jigs are arranged on the parallel guide rails in a sliding manner; the two sliding carrying tables are connected with one translation driving mechanism, and are driven to synchronously move on the parallel guide rails through the translation driving mechanism; or, each of the two sliding carrying tables is connected with one translation driving mechanism, and is driven to independently perform reciprocating motion on the parallel guide rails through the corresponding translation driving mechanism. According to the double-station automatic feeding device, two stations are arranged to alternately feed materials, and when one of the stations operates on the welding station, the other station can be used for stacking silicon steel sheets in advance, so that the working efficiency is greatly improved; and besides, the sliding carrying tables are controlled to horizontally move through the translation driving mechanisms, the stationarity is good, and the welding quality can be improved.

A band saw machine includes a driving wheel and a driven wheel around which an endless band saw blade is wound. At least one of the driving wheel and the driven wheel is directly connected to an output shaft of a control motor. The output shaft of the control motor is arranged in a cylindrical bearing unit installed on a motor base supporting the control motor. The driving wheel is rotatably supported by the bearing unit.

The invention relates to the technical field of communication equipment, and discloses shipborne satellite communication equipment and an operation method thereof. The shipborne satellite communication equipment comprises a rectangular mounting plate and a first rectangular bearing plate, wherein buffer protection devices are arranged on the left side, the right side, the front side and the rear side of the upper surface of the rectangular mounting plate, the left side of the upper surface of the first rectangular bearing plate is rotationally connected with a first rotating shaft, and the upper surface of the first rotating shaft is fixedly connected with a rectangular rotating plate. According to the shipborne satellite communication equipment, by arranging a first motor, a third rotating shaft, a transmission worm rod, a driving wheel, a driven wheel, a belt and a transmission worm wheel, a second rotating shaft can conveniently and stably drive a second fixed connecting block and athird rectangular bearing plate to rotate, so that the angle of a communication antenna can be conveniently and stably adjusted; and the shipborne satellite communication equipment is simple in structure, convenient to implement and high in flexibility, signals can be conveniently received and sent by the communication antenna, and the service life of the communication antenna is greatly prolonged.

The invention discloses an embedded high-speed online machine vision detection method and device, and relates to the technical field of vision detection, in order to solve the problem that the existing embedded high-speed online machine vision detection device has weak shock resistance capability, is easily subjected to vibration to make the internal precision parts damaged to affect its use, willresult in blurred imaging caused by vibration to affect the precision of the device detection, and will be easily affected by the unstable light from the outside, causing the device to have the problem of false detection. A support bracket is installed under a main body bracket, an anti-dropping chuck is installed at the lower end of the main body bracket, the anti-dropping chuck is welded and connected to the main body bracket, a bottom shock-absorbing spring is installed at the lower end of the support bracket, the bottom shock-absorbing spring is welded to the support bracket and the anti-dropping chuck, both sides in the support bracket are installed with lateral damping springs, and the lateral damping springs are welded and connected to the support bracket and the main body bracket.

The invention provides a road and bridge shock-absorbing support and an installation method thereof, which belong to the technical field of road and bridge shock-absorbing technology. The length direction of the groove is perpendicular to the length direction of the base. The shock absorber column is arranged in multiple grooves. The shock absorber column can move along the length direction and width direction of the groove. The shock absorber column is used to reduce road and bridge vibration. , the support plate is set on the upper end of multiple shock absorbers, and is used to transmit the vibration of the road bridge to multiple shock absorbers. The shock absorber is set on the support plate, and the shock absorber can slide on the support plate. The sliding direction of the shock absorber Parallel to the length direction of the base, the upper end of the shock absorber is connected to the road bridge, and the shock absorber is used to reduce the vibration of the road bridge. The road bridge shock-absorbing bearing and its installation method provided by the invention have the technical effects of being able to reduce various vibrations received by the road bridge, having good shock-absorbing performance of the road bridge and maintaining the stability of the road bridge.

The invention provides a method of adding TBM (tunnel boring machine) support cylinder magnetorheological dampers, is intended mainly to solve the problem that the existing full-face hard rock tunneling machine vibrates during tunneling, and is intended to relieve or decrease the damage due to severe vibrations of a main unit during operating. According to the technical scheme, magnetorheologicaldampers are added respectively between a top shield and a main drive, between a left upper shield and the main drive, between a right upper shield and the main drive, between a left shield and the main drive, and between a right shield and the main drive, so that longitudinal and transverse vibrations generated by the main unit during construction can be relieved, tunneling stability of the main unit can be improved, and better structural reliability and longer life can be imparted to the main unit.

An underwater acoustic projector comprising one or more cylindrical shell segments (8), each shell segment (8) having an even number of drivers (10) mounted therein, and the method of manufacturing said projector. The shell segments (8) preferably are formed with a longitudinal slot (14) and have arcuate segments (16), preferably of a dielectric material extending along the sides of the slot (14) for retaining the drivers (10) within the shell segments (8). The combined lengths of the driver is between 70% and 90% of the shell segment (8) length.

The invention discloses a main bearing cap of gas engine, which makes use of connection to connect various bearing caps together so as to form the whole main bearing cap. In the whole main bearing capthe rigidity of main bearing seat of die-casting body is improved greatly. Mechanical deformation, thermal deformation and portrait vibration of body are decreased. The rigidity of main bearing cap,coaxiality and Cylindricity of the hole of main bearing are improved at a great extent so as to improve the pressure-bearing ability of bearing and decrease the abrasion of friction pair. In addition,back oil seal seat is cast on the main bearing cap and a boss is cast on the lower of main bearing cap to install filtering so as to decrease the parts number of gas engine, decrease mechanical machining faces, decrease the production cost and improve the production efficiency.

The invention discloses a multi-chip band saw blade. The band saw blade comprises a saw blade body and saw teeth located on the saw blade body, 15 saw teeth arranged in sequence form a main tooth set,and each main tooth set comprises a first sub-tooth set, a second sub-tooth set, a third sub-tooth set, a fourth sub-tooth set and a fifth sub-tooth set; and each sub-tooth set comprises a first sawtooth, a second sawtooth and a third sawtooth which are arranged in sequence, the first sawtooth is a straight tooth, and the second sawtooth and the third sawtooth are separately a left dividing toothand right dividing tooth. By controlling the different heights of the teeth and controlling the tooth dividing amount, the tooth profile divides a chip into 18 chips during cutting, and the tooth profile can remarkably reduce cutting force in the cutting process and the cutting force in the saw cutting process; and the problems of oblique cutting, core digging, immovable cutting, intolerance to cutting and the like caused by excessive abrasion of tooth tips are avoided.

An elevator comprising a car frame (6) moving up and down in a hoistway (1), a car (5) installed in the car frame (6), and a guide for guiding the car frame (6) the lifting movement, the guide rail (2) that is arranged along the up and down direction, and via a plurality of car lower pulleys (4) that are arranged below the car frame (6), support the car frame ( 6) A sling (3) for lifting and lowering, wherein a dynamic shock absorber (10) moving up and down is provided below the car frame (6). Therefore, the vibration-absorbing device with a small structure for this elevator can not only effectively attenuate low-frequency longitudinal vibrations, but also can be accommodated within the external dimensions of the car frame.

The invention discloses a synchronous belt supporting device. The synchronous belt supporting device comprises a lifting mechanism, a rotary mechanism, a telescopic mechanism and a supporting wheel, wherein the lifting mechanism, the rotary mechanism, the telescopic mechanism and the supporting wheel are arranged on a linear module, the rotary mechanism is installed on the lifting mechanism, the telescopic mechanism is installed on the rotary mechanism, and the supporting wheel is installed on the telescopic mechanism. According to the synchronous belt supporting device, the drooping of the synchronous belt can be effectively reduced.

The invention discloses a novel central buckle device of a suspension bridge, which comprises a cable clamp, an upper pulley of a sling, a double-strand sling, a shock absorbing frame, a lower pulley of a sling, a fixing device of a double-strand sling, a space type oblique rod, and viscous damping device and a space-type oblique rod fixing device; the cable clamp is fixed at the mid-span of the main cable of the suspension bridge, and the upper pulley of the sling and the upper end of the oblique rod are fixed to the cable clamp; A number of damping frames are provided; the viscous damper is fixed in the middle of the inclined rod. The invention reduces the longitudinal vibration of the short sling and prevents the anchor head of the sling from being damaged due to longitudinal reciprocating motion by passing the sling through the upper and lower pulleys to form a closed loop, setting a vibration damping frame, and setting a viscous damper on the inclined rod; The lateral vibration of the short sling is reduced by setting the space type oblique rod. The invention can be arranged in the mid-span of the suspension bridge, and is used for multi-directional vibration reduction of the mid-span and short suspension cables.