14 results about "Scotch yoke" patented technology

A motion duck decoy, in which a duck decoy comprises a weight and a power source enclosed within the duck decoy, whereby powered motion of the weight within the duck decoy causes the duck decoy to mimic the feeding motion of a duck. The decoy may include a Scotch yoke mechanism.

The utility model belongs to the technical field of agricultural equipment, disclose a kind of pickup device without retainer, including rotating shaft, the fixed disc is fixedly installed in the position of both ends of rotating shaft, rotating shaft outer surface between two fixed discs is evenly spaced and arranged with multiple support plates, multiple support plates are set to pentagon, multiple installation poles of annular arrangement are inserted between two fixed discs, multiple installation poles are contacted with support plate simultaneously, multiple groups of pickup components are linearly arrayed on each installation pole, and multiple installation poles are connected by external guard plate;The utility model whole simple structure can strengthen the overall strength of pickup device, convenient to disassemble and assemble, improve use effect.

The invention belongs to the technical field of internal combustion engines, and particularly relates to a Scotch yoke internal combustion engine, a vehicle, a ship and an aircraft. Wherein the Scotch yoke internal combustion engine comprises a crankshaft provided with at least one connecting rod journal; the connecting rod is provided with a crankshaft connecting part, and the crankshaft connecting part is provided with a sliding groove; the sliding block is arranged in the sliding groove in a sliding manner; the first rolling bearing is mounted in the mounting hole of the sliding block, and the connecting rod journal is rotatably connected with the sliding block through the first rolling bearing; the two second rolling bearings are installed on the two sides, in the sliding direction of the sliding block in the sliding groove, of the sliding block correspondingly, and the sliding block is installed in the sliding groove in a sliding mode through the two second rolling bearings. According to the technical scheme, the problem of dry abrasion between the bearing bush and the connecting rod journal and between the sliding block and the connecting rod when the Scotch yoke internal combustion engine does not have the forced lubrication condition is solved.

The utility model relates to the technical field of engines, and provides an opposed engine which comprises a crankshaft, a power unit and a torque eliminating device, the power unit comprises a Scotch yoke transmission mechanism and two air cylinders, the Scotch yoke transmission mechanism comprises a power sliding block, a power connecting rod and two power pistons, the power sliding block is rotatably installed on a crank throw, and the power connecting rod is rotatably installed on the crank throw. The power sliding block can be installed on the power connecting rod in a sliding mode in the second direction, the two power pistons are installed at the two ends of the power connecting rod in the first direction respectively, and each power piston can be arranged on the corresponding air cylinder in a sliding mode in the first direction. A moment elimination mass block of the moment elimination device is driven by a crankshaft to do reciprocating rectilinear motion in the first direction, and the direction of inertia moment generated by the moment elimination mass block and acting on an engine body is opposite to that of inertia moment generated by all Scotch yoke transmission mechanisms and acting on the engine body. The inertia moment of the Scotch yoke transmission mechanism is effectively counteracted or reduced, and the NVH performance is remarkably improved.

The present invention relates to a stage assembly with a vent structure for preventing condensation by making a flow path in the stage so that air around the vessel on the stage passes through the inside of the equipment for making the temperature of a stage-direction surface of a vessel similar to the ambient temperature of the vessel to prevent condensation. In addition, the present invention relates to the stage assembly with the vent structure to reduce cost, prevent stenosis due to exposure of the drive, and improve antifouling function due to blocking of foreign substances, by simplifying the structure and reducing parts so that all drive parts can be mounted in a space smaller than the diameter of a knob for driving the stage, and applying a scotch yoke mechanism so that a rotary shaft connected to the knob per se is a drive to make a linear motion.

In one aspect, a device includes a housing. The housing can include a scotch yoke disposed within an interior of the housing. The scotch yoke can include a sliding yoke. The device can also include a plurality of attachment points. The plurality of attachment points can be disposed on the sliding yoke. The device can further include a sheet. The sheet can be coupled to the plurality of attachment points disposed on the sliding yoke. Rotation of the scotch yoke can cause oscillation of the sheet.

The present invention provides a foldable electronic device comprising a central base, panel assemblies, and a scotch yoke synchronization module. The central base includes a base portion and a plate portion. Each panel assembly has a wing member pivoted to the base portion. The scotch yoke synchronization module includes a guide column, a liftable block, crank members, sliding yokes, and sliding pins. The guide column is on the plate portion, and the liftable block moves along it. Each crank member is pivoted to the base portion, with sliding yokes on the liftable block extending widthwise. Sliding pins on the crank members are accommodated in the sliding yokes for back-and-forth movement. When the liftable block moves along the guide column, the sliding pins slide in the yokes, causing the crank members to rotate in opposite directions simultaneously.

This application belongs to the field of internal combustion engine technology, and particularly relates to a Scottish yoke internal combustion engine, vehicles, ships, and aircraft. The Scottish yoke internal combustion engine includes: a crankshaft with at least one connecting rod journal; a connecting rod with a crankshaft connection portion having a sliding groove; a slider slidably disposed within the sliding groove; a first rolling bearing installed in a mounting hole of the slider, the connecting rod journal and the slider being rotatably connected via the first rolling bearing; and two second rolling bearings respectively installed on both sides of the slider along its sliding direction within the sliding groove, the slider being slidably mounted within the sliding groove via the two second rolling bearings. The technical solution of this application aims to solve the problem of dry friction wear between the bearing bush and connecting rod journal, and between the slider and connecting rod in a Scottish yoke internal combustion engine without forced lubrication.

The invention discloses a simple harmonic variable rotating speed generation mechanism which mainly comprises a main motor, an auxiliary motor, a planetary gear train and a Scotch yoke conversion mechanism. The main motor drives the sun gear; the auxiliary motor drives a crank disc with a radial guide rail, and the crank disc and the rack push rod form a Scotch yoke mechanism together through an adjusting rod assembly composed of a sliding block and a threaded rod, so that the rack push rod generates simple harmonic reciprocating rectilinear motion. The motion is converted into simple harmonic rotation of the internal and external tooth gear through the intermediate gear, then differential coupling is carried out on the simple harmonic rotation and the rotation speed of the sun gear in the planetary gear train, and finally the planetary gear output shaft outputs the simple harmonic changing rotation speed. The rotating speed fluctuation amplitude can be flexibly controlled by changing the eccentric distance of the adjusting rod assembly in the guide rail. The mechanism realizes dual-power synthesis in a pure mechanical mode, has the advantages of accurate waveform, convenience in adjustment, compact structure and the like, and is suitable for unsteady-state working condition simulation of rotating machinery.

The present application relates to the technical field of lubrication, and provides a Scotch yoke lubricating structure and a cylinder coaxial opposed engine, the Scotch yoke lubricating structure comprising a crankshaft, a bearing, a sliding block and a frame, the frame reciprocating linearly along a first direction, the frame having a first sliding groove extending along a second direction, the sliding block being slidably arranged in the first sliding groove, the sliding block having a mounting through hole penetrating the sliding block, a crank pin of the crankshaft penetrating the mounting through hole, the bearing being arranged between a hole wall of the mounting through hole and the crank pin of the crankshaft, the crankshaft having a first oil hole extending along a third direction and a first flow channel, the first flow channel being communicated with the first oil hole and the bearing, the sliding block having a second flow channel, the second flow channel being communicated with the bearing and a groove wall of the first sliding groove, at least one of the groove wall of the first sliding groove and an outer side wall of the sliding block and at least one of the hole wall of the mounting through hole and a bearing bush of the bearing having an inner recess surface texture, a stable lubricating oil film being established between a friction pair on a load side of the sliding block and reliable lubrication being realized.

The invention relates to a compensation mechanism for a displacement machine according to the spiral principle, in particular a scroll compressor, wherein the compensation mechanism comprises a driveshaft with a central axis S and a compensation device, which comprises a cylindrical hub element that is mounted on a first eccentric pin of the driveshaft such that it can rotate about an axis of rotation P, and a compensation element which is mounted on the hub element such that it can rotate about an axis of rotation J and which has an eccentrically arranged slotted hole extending in the radial direction relative to the axis of rotation J, wherein a second eccentric pin of the driveshaft is guided in the slotted hole of the compensation element such that a Scotch yoke is formed between the slotted hole and the axis of rotation J of the compensation element. The invention also relates to a displacement machine comprising a compensation mechanism of this type.

The invention discloses a multi-station wind power variable pitch bearing fretting wear test device, which relates to the technical field of bearing tribology test and wind power equipment reliability test, and comprises a rack, a driving unit, at least two test units and at least two loading units, the driving unit is installed on the rack and used for providing reciprocating swing driving force, and the driving unit comprises a servo driving motor and at least one Scotch yoke mechanism; the test unit is connected with the output end of the Scotch yoke mechanism and is used for installing a test bearing and simulating the working state of the test bearing; the loading units are in butt joint with the testing units respectively and are used for applying axial loads to the testing units; the driving unit synchronously drives all the Scotch yoke mechanisms through a servo driving motor, and the output end of each Scotch yoke mechanism is connected with and drives at least one testing unit so that the testing bearings in all the testing units can synchronously swing in a reciprocating mode. By means of the arrangement, synchronous driving of the multiple test stations is achieved.

Device (100) for a hand-operated therapeutic jaw exercise, comprising: a lower mandibular arch plate (102) configured to apply force to the incisors of a mandibular arch; a quadrant plate (104) which supports the lower mandibular arch plate (102) for rotation about a pin (106) which is mounted on a stand of the quadrant plate (108); a rod (110) connecting the lower mandibular arch plate (102) to the quadrant plate (104); a yoke (112) that engages with the bar (110) to form a Scotch yoke mechanism; a rack (114) which extends integrally from the yoke (112) and is provided with teeth; a pinion (116) that engages with the rack (114) to form a rack and pinion mechanism; and a pinion (116) wherein the pinion (116) engages with the rack (114) to form a rack mechanism; a hand lever (118) extending from a central shaft of the pinion (116) and supported by a hand lever stand (120), wherein a rotation of the hand lever (118) actuates the pinion (116) to move the rack (114) back and forth, the yoke (112) slides and the quadrant plate (104) is rotated around the pin (106), thereby opening the lower mandibular arch plate (102) in a circular arc and enabling locking in any angular position for therapeutic jaw exercises.

The present application relates to the technical field of engine, and provides a scotch yoke lubricating system and an opposed engine. The scotch yoke lubricating system comprises a crankshaft, a bearing, a sliding block and a frame. The frame moves in a reciprocating linear motion along a first direction. The frame has a first sliding groove extending along a second direction. The sliding block is slidably arranged in the first sliding groove. The sliding block has a mounting through hole penetrating the sliding block along a third direction. A crank pin of the crankshaft is arranged in the mounting through hole. The bearing is arranged between the hole wall of the mounting through hole and the crank pin of the crankshaft. The crankshaft has a first oil hole and a first flow channel. The diameter of the first oil hole is 3mm-6mm. The first flow channel is connected with the first oil hole and the bearing. The bearing is provided with a flow hole penetrating along a radial direction and having a diameter of 3mm-6mm. The sliding block has a second flow channel. The second flow channel is connected with the bearing and the groove wall of the first sliding groove. The second flow channel guides the flow of lubricating oil, ensures appropriate oil supply pressure and oil supply amount, and ensures that the lubricating oil can be uniformly distributed on the friction surface.