Comprising a rack (F16H19/04)

ovement conversion mechanism // 2568694
FIELD: machine building.SUBSTANCE: mechanism contains casing with guides, slider with internal boring, having double-sided toothed rack, and shaft with tooth-wheel engaged with the slider boring. Part of the tooth-wheel has decreasing radius, and teeth are located over fill perimeter of the both tooth-wheel, and slider boring. The shaft can have cam, and slider has stops creating with cams the kinematic pairs.EFFECT: smooth, shockless change of slider movement direction, and permanent parameters of tooth-wheel engagement parameters with tooth boring in the slider.2 cl, 3 dwg

Variable speed gearbox // 2549341
FIELD: machine building.SUBSTANCE: gearbox contains two rack-and-pinion gear, each of them moves in its movable platform, and output shaft of the gearbox with installed on it idlers. Each rack-and-pinion gear contains one toothed rack. The movable trolley contains one camshaft used to move the rack-and-pinion gear in the movable platform at right angle to its movement, and is driven by the lever with movable axle. Each rack-and-pinion gear is made with possibility of rotation as per adjusted oval movement trajectory and torque transmission of output shaft idler linked by means of the engagement. The gearbox is made with possibility of control during movement by means of the axle movement of drive levers of the movable platforms.EFFECT: simplified design.10 cl, 4 dwg

Internal combustion engine (versions) // 2545109
FIELD: engines and pumps.SUBSTANCE: invention can be used in internal combustion engines. An internal combustion engine includes cylinders (1) and (11) with removable heads, pistons (2) and (10) with piston rings, a gas distributing mechanism, a cooling system, a lubrication system, a feed system and an ignition system. Pistons (2) and (10) that are connected in pairs through tie-rods (3) and (9) to frame (5) with toothed racks (6) and (7) so that if one piston (10) is at the upper dead point, then, the other piston (2) is at the lower dead point. Conversion of back-and-forth movement of pistons (2) and (10) to rotational movement of an output shaft occurs due to movement of frames (5) with toothed racks (6) and (7) that are engaged with toothed sectors (15) and (16) of wheels (13) installed on output shaft (12). Frames (5) are provided with upper and lower toothed racks (7) and (6). Upper and lower toothed racks (7) and (6) are offset relative to each other. The upper part of frame 5 is provided with one toothed rack (7), and the lower part of the frame is provided with two toothed racks (6), the longitudinal axes of which are offset symmetrically relative to the axis of the pistons. A version of engine design is described.EFFECT: reduction of lateral forces acting on the side of the piston on cylinder walls.6 cl, 19 dwg, 1 tbl

ethod for conversion of reciprocal motion of pistons in piston rotor cylinders into rotational motion of rotor and transmission mechanism // 2518136
FIELD: machine building.SUBSTANCE: invention relates to machine building and can be used in hydraulic and air engines, pumps, compressors and other units. Method for the conversion of reciprocal motion of pistons in piston rotor cylinders into the rotational motion of a shaft in a transmission mechanism is implemented by the rotation of the piston rotor fixed at the shaft. Piston rods of the piston rotor bring rack reducers in motion. The rack reducers interact with the sun wheel of the planetary gear. A transmission mechanism for the method implementation comprises a piston rotor, rack and planetary gears. The rotor shaft (1) is movably fixed at immovable supports (2) and bearings (3). The rotor is fitted by rigidly fixed "n" cylinders (4) and the respective number of rack reducers (8). A displaceable piston (6) with a rod (7) being simultaneously a reducer rack is installed inside each cylinder. A planetary pinion (10) is located on the output shaft (9) of each rack reducer. The planetary pinions are set on the rigidly fixed sun wheel (11).EFFECT: higher efficiency output.2 cl, 2 dwg

Conversion mechanism of piston back-and-forth movement to rotational movement with rack-and-pinion mechanism in internal combustion engine // 2480596
FIELD: engines and pumps.SUBSTANCE: conversion mechanism of piston back-and-forth movement to rotational movement with a rack-and-pinion mechanism in the internal combustion engine consists of a cylinder block, a piston, a piston pin and a piston-rod. Two toothed rims are installed on the engine shafts under each cylinder. Piston with piston-rod and two toothed racks installed on opposite sides relative to the engine shaft moves along the cylinder axis. Toothed racks are constantly engaged with two toothed rims on the engine shaft with similar number of teeth at the angle of 180 and at movement of the piston-rod with the piston, toothed rims rotate opposite each other. At dead points of the piston, one toothed rim is disengaged from the engine shaft and rotates idly, and at the same time, the second toothed rim is engaged with the engine shaft, thus transmitting to it the rotational movement in the same direction. The piston stroke is restricted with a limit stop on the toothed rim and a limit stop on the toothed rack.EFFECT: reduction of mechanical losses.9 dwg, 1 tbl

echanism for conversion of piston reciprocation into rotation by two ice con-rod racks // 2479734
FIELD: engines and pumps.SUBSTANCE: proposed mechanism consists of cylinder block, piston, piston pin and con-rod. Gears are fitted on engine shaft under every cylinder. Piston with con-rod and two moving racks arranged on both sides of engine shaft reciprocate along cylinder axis. One rack disengages from gear while second rack engages with gear on engine shaft at piston TDC and BDC in traverse direction relative to con-rod displacement axis. Engine shaft master cam orients racks with the number of teeth multiple of four and follows them in fixed position relative to gear while piston stroke is limited by con-rod stop.EFFECT: decreased mechanical losses.6 dwg

Rack-type race bicycle // 2477240
FIELD: transport.SUBSTANCE: invention relates to bicycle with reciprocating pedals. Pedal 23 is fitted on pusher 21 provided with gear 20. Spring-loaded rack 16 has teeth on its both sides to engage with overrunning coupling 13, 14 and gear 20. Extra rack 22 is a stationary element. Gear 20 interacts with stationary rack teeth and those of spring-loaded rack 16. In pedal downward travel, spring-loaded rack stroke is doubled due to addition of two motions. Pusher translation with gear 20 and rotation driven by engagement od gear 20 with fixed rack 22.EFFECT: increased speed.3 cl, 4 dwg

Harmonic rack-and-gear drive with intermediate links in form of wedges // 2458269
FIELD: machine building.SUBSTANCE: harmonic rack-and-gear drive with intermediate links in the form of wedges includes housing (1), rack (2), wedge movement device (4) orthogonal to the rack, which consists of shaft (6) and flat cams (8) installed on it along its axis through screw line. Diaphragm (11) is installed between housing and wedges. Rack has the possibility of being moved in guides of housing parallel to shaft axis. Brolling bearings (9) are installed in wedges with possibility of direct interaction of their inner rings with working surfaces of flat cams (8). Rollers (10) are installed in the rack with constant pitch and with possibility of being rotated about their axes. Rollers interact with wedges subsequently displaced in phase relative to each other only in straight-line sections of their back-and-forth movements.EFFECT: uniform tractive force on rack, and rigid drive.3 dwg

Actuator // 2446322
FIELD: machine building.SUBSTANCE: cylinder and tooth-and-rack mechanism are arranged in case. Piston with rod are fitted inside cylinder. Bead is made on rod end. Tooth-and-rack mechanism comprises rack and toothed sector with output shaft. Separate rack and rod are hinged together. Hinge is made up of groove on rack end and bead to be fitted in slot in assembly. Two screws lock rack to prevent turning about its axis. Rack is mounted on support roller on the side opposite rack toothed section. Axle of said roller is fitted in bracket to rule out rack crosswise shift. Set of shims is fitted between bracket base and casing to allow lifting roller axle, hence, clearance in tooth-and-rack gearing.EFFECT: ruling skews in kinematic gearing.4 dwg

Progressive transmission gear // 2435689
FIELD: transport.SUBSTANCE: invention may be used in trackless vehicles with engine (automobiles). Proposed transmission gear has at least one spur gear 1, 2 and at least toothed device to be engaged with said spur gear 1, 2. Spur gear 1, 2 has teeth 11 arranged along a curve. Said curve feature curvature radius increasing monotonically in angular range of said curve above 90. Spiral, particularly logarithmic spiral, is a preferable shape of said curve.EFFECT: compact and simple design, smooth run.32 cl, 24 dwg

Internal combustion engine (versions) // 2423615
FIELD: engines and pumps.SUBSTANCE: internal combustion engine (ICE) comprises cylinders (1, 11), pistons (2, 10), an output shaft (12), systems of cooling, lubrication, supply, ignition, pistons (2, 10). The pistons (2, 10) are connected in pairs, via rods (3, 9) with a frame (5). The frame (5) is arranged with upper (6) and lower (7) geared racks. Longitudinal axes of upper (6) and lower (7) racks are displaced relative to each other and relative to the axis of pistons (2, 10). There are wheels (15, 16) are installed at the output shaft (12). Geared racks (6,7) engage with geared sectors (17, 18) of wheels (15, 16). If one piston (10) is in the upper dead point, then the other one (2) - in the lower one. Conversion of reciprocal motion of pistons (2, 10) into rotary motion of the output shaft (12) takes place as a result of displacement of the frame (5) with geared racks (6, 7). Also an ICE is represented in the invention, where the geared racks (6, 7) and geared sectors (17, 18) of the wheels (15, 16) are magnetised. Also one of the geared pair elements may be magnetised.EFFECT: reduced friction between geared sectors of wheels and geared racks.2 cl, 9 dwg

Friction bearing and rack-and-pinion steer in car // 2409772
FIELD: machine building.SUBSTANCE: friction bearing (7) consists of bushing (17) out of synthetic plastic with at least one circular groove (16) made on external periphery surface (15) of bushing, of circular-shaped elastic element (18) inserted in circular groove (16) and of couple of periphery, axially symmetrical and turned inside surfaces (21, 22). Bushing (17) also has two pairs of slots (23, 24) and (25, 26) each positioned so, that surfaces (21, 22) run between them along circumference; the slots facilitate corresponding surfaces (21, 22) travelling in radial direction inside/outside. Further, the bushing has at least one pair of internal periphery surfaces (27, 28) turned outside and passing from outside into radial direction relative to pair of surfaces (21, 22). Each surface (27, 28) forms a gap with corresponding external periphery surface from the side of teeth and from opposite to it side of a shaft of steer rack; the shaft is inserted and fixed in a through orifice formed with pairs of surfaces (21, 22) and (27, 28). The section of each surface (21, 22) comes into a sliding contact with a corresponding external periphery surface of the shaft of the steer rack, except for external periphery surfaces from the side of teeth and for opposite to it side of the shaft of the steer rack. There is also disclosed the rack-and-pinion steer including the above said friction bearing.EFFECT: facilitating specified rigidity for shaft of steer rack in its radial direction and in axial direction of drive gear; also facilitation of movable support with low friction resistance in axial direction of shaft; reduced effect of relaxation of stresses due to creep strain and heat prehistory.9 cl, 10 dwg

Eccentric-cycloidal engagement of complex tooth profiles // 2385435
FIELD: machine building.SUBSTANCE: profiles of gears (1,2) are composed of similar turned one relative to another crowns. Crowns of gear (1) have one tooth and correspond to eccentric setoff circumferences (3). Crowns of gear (2) have crowns (8, 8', 8") of cycloidal profile. Each crown of one tooth gear (1) is formed with external sleeve (4) of bearing (5) set on eccentric set off section (6) of common shaft (7).EFFECT: reduced skidding of engaged profiles.5 cl, 6 dwg

Rack toothing for linear drive (versions) // 2362925
FIELD: mechanical engineering.SUBSTANCE: invention relates to tooth rack gear, transforming rotary motion into forward motion and on the contrary. It can be used instead of usual involute gear of rack-and-gear mechanisms in linear drives of stands, in devices of auto steering control, and also in load-lifting technology (rack-and-gear jack and suchlike). Rack toothing for linear drive contains wheel (1) and rack (2). Wheel is implemented with one tooth with profile in transverse section of wheel in the form of circumference (3), off-centre displaced from pivot pin of wheel (1). Skew tooth is formed by successive and continuous turn of transverse sections around wheel's axis with formation of helical surface. Rack (2) allows helical teeth (4) of cycloidal profile, conjugated to helical surface of wheel (1). In the second option wheel (1) allows also one tooth and composed from certain crowns, each of which allows profile in the form of off-centre shifted circumference. Teeth of rack (2) are composed also from several cycloidal crowns. Adjacent wheel crowns and racks are phase shifted relative to each other for pitch of corresponding crown, divided for number of crowns.EFFECT: invention provides creation of small-capacity rack toothing and increasing of its load-carrying capacity.4 cl, 6 dwg

Steering mechanism of transport vehicle // 2362701
FIELD: transportation.SUBSTANCE: invention is related to steering mechanisms of wheel transport and traction machines, and may also find application in motor industry, tractor construction, machine-tool construction, instrument making, production of weight-lifting machines, where mechanisms are required with preset patterns of their separate work members movement. Steering mechanism comprises tooth gear with master gear (1) and tooth rack (6). Tooth rack (6) is made in the form of two parallel parts that move one along each other. Teeth (7) of racks are installed with the possibility of alternate engagement with gear in radiuses of its dividing circumferences, which makes it possible to obtain an alternation transmission ratio.EFFECT: makes it possible to improve controllability of transport vehicle due to provision of optimal pattern for variation of transmission ratio of rack steering mechanism, and also to increase traffic safety.4 dwg

otion converting mechanism (versions) // 2311574
FIELD: mechanical engineering.SUBSTANCE: invention can be used in systems with piston, slider and other units. Proposed mechanism has housing, guides 2, slider 3, output shaft 4 with circumferential section 5 of gear rim alternately engaging with two sections 6, 7 of rim (racks) arranged from side of slider 3 with teeth orientated in opposite direction. End working teeth of edges of rim sections 5-7 are made with body truncation surface having at least one bend and orientated with tilting at acute angle by one extremity to surface of point and by other extremity, square to one of end faces. Surface of truncation of tooth body together with cut of top surface on opposite sections 5 and 6 or 5 and 7 of rim is orientated so that corresponding pairs of working teeth are aligned with ridges at insignificant clearance at opposite relative displacement.EFFECT: reduced level of vibrations, eliminated possibility of wedging.6 cl, 21 dwg

Lever-tooth-rack mechanism for executing rotary reciprocation // 2308625
FIELD: mechanical engineering.SUBSTANCE: invention relates to lever-tooth mechanisms with rack and it can be used to drive mechanisms of slotting machine, automobile windshield wiper, brush cleaner of screens of grain-cleaning machines, in automatic machines, etc. Proposed mechanism contains base, toothed wheel and crank hinge-mounted on base for rotation, and toothed rack engaging with toothed wheel. Lever with guide member is hinge-mounted on axle of toothed wheel. Guide member engages with rear side of toothed rack forming translational pair. Guide member is made in form of roller hinge-mounted for rotation on axle installed on free end of lever provided with thread. Axle of roller is provided with through cross hole to pass threaded end of lever. Roller is held on lever by nuts arranged from outer and inner sides of roller to adjust and fix radial clearance in meshing between rack and toothed wheels.EFFECT: improved operating characteristics of mechanism.2 dwg

otion converter // 2308603
FIELD: mechanical engineering, particularly combustion engines, pumps and positive displacement compressors, namely mechanisms, which covert reciprocal movement into rotation and vice versa.SUBSTANCE: motion converter comprises four cylinders grouped in pairs. Pistons of opposite cylinders are connected with each other through fixed bar. The converter has the first and the second pair of fixedly connected parallel toothed racks brought into engagement with corresponding segmental gear-wheels fixedly connected to one output shaft. In each segmented gear-wheel teeth extend for less than half of 180° pitch circle. Segmented gear-wheels cooperating with corresponding toothed racks are shifted through predetermined angle, preferably 90° angle, one relatively another.EFFECT: increased performance.3 cl, 5 dwg, 1 tbl

Toothed transformer of alternate/reciprocal motion into rotary and vice-verse // 2297564
FIELD: the invention refers to the field of machine building namely to transformers of alternate/reciprocal motion into rotary and vice-versa and may be used in piston engines, pumps, compressors and other gears.SUBSTANCE: the transformer is a planetary toothed mechanism consisting of a non-rotating central pinion with inner toothed gearing making alternate/reciprocal motion relatively to the axle rotating together with firmly connected with it from one side and interacting with the central pinion-satellite. The length of the toothed rim of the satellite is two times smaller then the length of the toothed rim of the central pinion, of the link or of the mechanism providing continuous engagement of the teeth of the central pinion and the satellite. The link and the mechanism are fulfilled in such a manner that install marginally allowable distance between the positions of their joining with the central pinion and with the satellite not installing the maximum allowable value of this distance. The central pinion and the satellite have figured different profile according to their toothed rims.EFFECT: increases the coefficient of efficiency of transformation of the alternate/reciprocal motion into rotary and vice-versa and simplifies the construction of the toothed transformer.10 cl, 6 dwg

achine with rotating piston // 2293847
FIELD: mechanical engineering.SUBSTANCE: according to invention, body 10 forms prismatic chamber 12 whose cross section is oval of odd order formed from arcs 34, 36, 38 with first smaller radius of curvature and arcs 40, 42, 44 with second, larger radius of curvature changing continuously and differentially one into the other. Thus, corresponding cylindrical parts of inner surface of chamber are formed. Chamber 12 accommodates rotating piston 60 whose cross section forms oval of the order smaller by 1 than order of chamber 12. Opposite parts of side surface are formed on rotating piston 60, one of which rotates in part of inner surface of radius of curvature equal to said part and the other adjoins opposite part of inner surface to slide along surface. rotating piston 60 divides chamber 12 in any position into two working spaces 78, 80. Instantaneous axes of rotation 112, 114 of rotating piston 60 are determined on middle plane of piston being fixed for a short time. Working agent to set rotating piston 60 into motion is periodically introduced into working spaces. Rotating piston 60 rotates in each phase of its motion in one of opposite parts of its side surface 70 in corresponding part of inner side surface 62 of chamber around corresponding instantaneous axis of rotation 112 and slides by opposite part of its surface 72 along corresponding opposite part of inner side surface 54 of chamber 12 to stop, i.e. until it comes into extreme position. Then, to execute following phase of movement, instantaneous axis of rotation jumps from previous position into second possible position 114 relative to piston and is fixed in this position for a short rime. Driven or driving shaft 102 is in engagement with rotating piston 60. To prevent kinematic ambiguity of instantaneous axis of rotation in extreme position, instantaneous axis of rotation is mechanically fixed in each extreme position for a time (Fig.1).EFFECT: improved efficiency of machine in operation.20 cl, 79 dwg

Gearing device // 2289046
FIELD: mechanical engineering.SUBSTANCE: gearing device comprises two gear racks and gear wheel. The recess is provided between the racks (26) and (28) to prevent gear wheel (10) against the contact with both of the racks simultaneously. The adapting gear member between two racks is defined by the convex gear arc. When gear wheel (10) engages adapting member (30), it disengages rack (26) immediately before the moment when it engages rack (28).EFFECT: improved structure.13 cl

Gear converter of reciprocation into rotation and vise versa // 2280795
FIELD: mechanical engineering.SUBSTANCE: gear converter comprises nonrotating shaped gear wheel (1) with inner teeth engagement, which reciprocates with respect to semiaxle (3) that rotates together with shaped pinion (2) secured to the semiaxle from one side and cooperating with shaped gear wheel (1). The length of the gear rim of pinion (2) is twice as less as that of gear rim of shaped gear wheel (1). The continuous engagement of the teeth of shaped gear wheel (1) with pinion (2) is provided by means of the cooperation of cam (4) that is connected with pinion (2) with roller (8) freely rotating around its axis (9).EFFECT: enhanced efficiency.7 cl, 6 dwg

Converter of reciprocation motion to rotation // 2272948
FIELD: mechanical engineering.SUBSTANCE: converter comprises the rack, gearing, output shaft, two overloading clutches, and thrusts. The rack connected with the pivot is in coincidence with the overrunning clutches which are in a staggered contact with conical gears. The movement of the conical pivots are limited by means of the pinion secured to the output shaft. The racks provided with the gearing and overrunning clutches are interposed between the two conical gearings.EFFECT: simplified structure.1 dwg

Single-axle device for converting reciprocation into rotation // 2270390
FIELD: mechanical engineering.SUBSTANCE: device comprises rack, gears, output shaft, two overrunning clutches, and stops. The output shaft is inclined at an angle of 90° to the driving shaft. The gear engaging the rack is pivotally connected with the driving shaft. The faces of the gear abut against two overrunning clutches which are in a contact with the stop and conical gear pivotally mounted on the driving shaft. The conical gear is connected with the intermediate pinion secured to the output shaft. The intermediate pinion engages the conical gear secured to the driving shaft. The additional stop is secured to the shaft, set in the gear actuated by the rack, and housed by the flange. The device also has roller for keeping the space in the rack-gear engagement constant.EFFECT: simplified assembling.3 cl, 1 dwg

Gearing motion converter // 2266446
FIELD: mechanical engineering.SUBSTANCE: gearing converter comprises single gearing frame with inner or outer gear cut, two gearing racks (5) and (16) whose ends are interconnected via intermediate sections that define smooth members for power pinion (13) from one gear rack to the other, locking roller (14) that rolls over the shaped surface, one driving rod (1), carrier (15) with locking roller (14) connected with the gear rack and mounted on power shaft (4), and power pinion (13). The intermediate sections of the gear frame are provided with rounds that are redial with respect to the axis of rotation of the gear rack.EFFECT: expanded functional capabilities.16 cl, 9 dwg

Planet gearing mechanism // 2252349
FIELD: mechanical engineering.SUBSTANCE: planet gearing mechanism comprises shaped gear rack (9), base (1) with guides for longitudinal movements of the rack, rotatable lever (5) with gear wheel (4), and driving gear wheel (10). Shaped rack (9) has guides with flat (7) and profiled surfaces (2) and (8). The axis of rotation of wheel (10) passes through shaped rack (9), is in coincidence with the axis of rotation of lever (5), and transmits motion to shaped rack (9) through gear wheel (4) of rotatable lever (5). Rotatable lever (5) has bearings (3) and (6) which move individually over flat (7) and profiled (2) and (8) surfaces of rack (9).EFFECT: simplified structure.2 dwg

Wave gear rack with intermediate links in the form of wedges // 2230245
The invention relates to mechanical engineering and can be used to create the transport and processing modules

Gear rack // 2230244
The invention relates to the field of engineering, and in particular to mechanisms for converting reciprocal motion to rotary, and can be used, for example, in the transmission with a muscular drive, in particular in the drive bike

The doubler stroke cylinder // 2230243
The invention relates to the field of engineering, hitting the mechanisms of transportation in the distance, twice bigger than the possible supply of a cylinder with a limited run

The mechanism for converting reciprocal motion to rotary // 2223430
The invention relates to the field of engineering, namely, timing mechanisms for converting reciprocal motion to rotary, and can be used in the drive bike

A device for converting movements // 2194203
The invention relates to the field of mechanics, is used as a Converter movements and can be applied in various fields, including medicine autodetecting systems Ilizarov

Device for converting rotary motion into reciprocating // 2189472
The invention relates to engine and, in particular, to devices for converting rotary motion into reciprocating containing a gear wheel which engages with the movable gear frame

Device for converting rotary motion into reciprocating device fixing extreme position of the gear frame // 2180062
The invention relates to the field of engine development, the production of compressors, namely to convert the rotational motion into reciprocating (and Vice versa)

A rack and pinion mechanism // 2155894
The invention relates to the field of engineering, namely to the hydraulic actuators for converting the reciprocating motion of the input link in a reciprocating rotational movement of the output link

The mechanism for converting rotary motion into reciprocating and vice versa // 2044168
The invention relates to mechanical engineering and applied in the field of volumetric machines

The mechanism for converting the reciprocating rectilinear motion into directed rotational // 2036358
The invention relates to mechanical engineering and can be used in the mechanism for converting reciprocating motion into rotational