Ring rope drive for torque transmission

FIELD: machine building.

SUBSTANCE: invention relates to a rope drives. The device for the torque transmission contains a set of at least three drive eccentrics, and the same set of driven eccentrics, and piston rods-ropes. Each appropriate to each other drive and driven eccentrics are connected by the ring piston rods-rope installed at diameters of the drive and driven eccentrics. To increase space for the structural elements installed on line between the axes of drive and driven shafts, the eccentric diameters of the drive shaft or driven shaft can have increased size at the same eccentricity.

EFFECT: device compactness.

2 cl, 4 dwg

 

Area of technology

The invention relates to the field of engineering.

Background art.

In the patent № RU 2426021 C1 from 10.08.2011 described cable drive in which torque from a main Cam on a driven eccentric is transmitted by a cable attached to the line passing through the axis of the driving and driven eccentrics. In some traditional designs of mechanisms, such as the use of a cable drive instead of a chain, on bicycles and motorcycles on the line between the wheel axle and the axle of the drive sprocket are design elements that may prevent the displacement of ropes. Cycling on a line between the axes of the leading and driven sprockets is the bracket of the rear wheels, and motorcycle axle rear suspension arm of the wheel.

Disclosure of the invention

The invention is aimed at giving additional possibilities of application the control cable in machinery, in which between the axes of the driving and driven shafts are structural members that may interfere with the displacement of ropes.

A prototype device was taken the construction described in patent No. EN 2426021 C1 from 10.08.2011. For obstacle avoidance, which is located on the line passing through the axis of the driving and driven shafts, it is proposed that the ends of each rod-rope splicing, having an annular rope,�EP ring which should allow you to install it without a gap on the diameters of the driving and driven eccentrics. Since the rotation is transmitted by the movement of the eccentrics, the fastening of the cables from turning on the periphery of the eccentrics is not required, it is enough to limit the movement of the cable-connecting rod along the axis (from saskachewan with eccentrics). These annular connecting rods-cables to put on the master and slave Cams all set. Outwardly, it will appear as widely used in engineering belt and gear transmission, with the difference that for the transmission connecting rods-cables should be not less than three annular rod-rope, as shown in Fig. 1 and 2.

In these drawings one unit more than the other eccentrics, at the same eccentricity, to increase the space needed to bypass the obstacles that are placed on the line connecting the axis of the driven and driving shafts.

If you need to increase the uniformity of the flow of torque to the driven shaft are mounted sets of eccentrics from four to twelve units, as proposed in the prototype.

Brief description of the drawings

Drive cable, which cables cranks are a closed ring shown in Fig. 1 and Fig. 2, where POS. 1 - a ring rope that passes around the outer eccentrics, POS. 2 - ring rope passing around medium eccentrics, POS. 3 - ring rope passing around the inner eccentrics, POS. 4 - �camping swing hanging at the back of the wheel.

Variant implementation of the invention.

Setting ring control cable on a motorcycle will allow you to bypass the axis of the suspension arm of the rear wheel, allowing the traditional design of the rear suspension is unchanged.

Fig. 3 and Fig. 4 shows the installation of dual-control cable on a motorcycle in the embodiment, when the use of closed ring ropes on the leading and trailing excentrico equal diameter, where POS. 5 - axle rear suspension arm of the wheel.

1. Apparatus for transmitting torque, containing a set of at least three leading eccentrics and the set of slave eccentrics and connecting rods-cables, characterized in that every match in the master and slave Cams are connected to the annular connecting rods-cables, which are installed on the diameters of the leading and trailing eccentrics.

2. A device for transmitting torque according to claim 1, characterized in that to increase the space for structural elements that are installed on the line between the axes of the driving and driven shafts, the diameters of the eccentric drive shaft or driven shaft can be increased in size at the same eccentricity.



 

Same patents:

Gearbox // 2453751

FIELD: machine building.

SUBSTANCE: notable portion of power is transferred via differential gear and portion of power is transferred via gearbox. The latter incorporates two stepped shafts and two gear inverted-tooth chain to allow power transfer in gearshifting. In direct gear, it is possible to cut off gearbox.

EFFECT: higher efficiency, lower weight and costs.

7 dwg

FIELD: mechanical engineering; transport engineering.

SUBSTANCE: invention relates to transmissions with stepless change of gear ratio. Proposed variable-speed drive contains input shaft, output shaft, two driving pulleys, one of which is fixed and the other is movable, installed for axial displacement of fixed driving pulley, drive chain two driven pulleys, one of which is fixed and the other is movable, installed for axial displacement of fixed driven pulley. Movable and fixed pulley are arranged in crosswise manner. Variable-speed drive is provided with input and output pressure devices consisting of pressure bushing with paths of pressure device with variable angle of pressing, rollers and paths of pressure device with variable angle of pressing made on input and output shafts.

EFFECT: reduced overall dimensions of variable-speed drive, increased load-carrying capacity of drive chain.

3 cl, 8 dwg

FIELD: the invention refers to machine building particularly to transmissions with flexible gearing members and may be used in mechanical draughts with changeable gear ratio.

SUBSTANCE: the transmission with a flexible gearing member has a driving and a driven elements each of them consisting of two conical disks (7,8), and of a flexible gearing member covering the transmitting elements. The conical disk (8) has possibility of axial transfer. Each conical disk (7,8) has on the conical surface diametrically opposite grooves (17) located opposite to the grooves of the corresponding conical disk. Two carriages (18) are installed in the grooves (17) for transfer along them. The conical disks (7,8) are provided with hubs in which there are ring grooves (21) with a cylindrical spring (22) located in them. The mobile disk (8)has a pusher (12) whose end of the working surface is fulfilled in the shape of a hemisphere mated with the adjusting screw (11) in a bushing (13). The tension roller is provided with a ring.

EFFECT: smooth adjustment of gearing ratio of the transmission without stopping and unloading, increasing service life and reducing time necessary for changing gearing ratio.

2 dwg

The invention relates to the field of engineering

The timing variator // 2133393
The invention relates to the field of engineering and is used to smooth change of gear ratio between the input and output links of the mechanism

The variator // 2110716
The invention relates to mechanical engineering and can be used in devices stepless regulation of speed of the driven shaft

Friction variator // 2104429
The invention relates to mechanical engineering and can be used in devices, transforming or transmitting torque or speed

Chain variable // 2059132
The invention relates to mechanical engineering and can be applied as a controlled drive for various machines and mechanisms, including vehicles

Chain variable // 2029178

The variable speed // 2006724
The invention relates to mechanics and can find application in different machines to change the speed of rotation of the driven shaft

FIELD: machine building.

SUBSTANCE: invention relates to mechanisms transforming straight-line movement of a piston to shaft rotation. A mechanism with no piston-rods includes a housing and a multithrow crankshaft, each link of the crank of which together with the crankshaft main journal, a jaw and a piston-rod journal includes a sun gear, a solar-and-planetary gear and a planetary satellite gear, as well as an eccentric coupling with a possibility of being rotated on the piston-rod journal, and a piston stock. The solar gear is rigidly fixed on the housing; the solar and planetary gear is rigidly fixed on the end face of the eccentric coupling, and the planetary satellite gear is arranged on the jaw with a possibility of free rotation and simultaneous engagement with the solar and solar-and-planetary gears. The crank shaft body with the planetary satellite gears passes inside the solar gears and the solar-and-planetary gears. With that, radii of the latter are equal to the radius of the crank of the crankshaft, the radius of eccentricity of the eccentric coupling and one fourth of the diameter of the solar gear.

EFFECT: achieving improvement of stiffness of the device design; increasing its durability and service life.

8 cl, 2 dwg

Crank drive // 2535590

FIELD: machine building.

SUBSTANCE: proposed drive comprises frame, swinging lever (1) secured thereat, crank (3) to make the drive output part fixed at the frame and con-rod (5) coupling said crank (3) with swinging lever (1). Con-rod (5) is articulated with crank (3) and with the end of swinging lever (1) opposite fixed attachment (2) of swinging lever. First cylinder (12) with moving piston (13) is designed to drive said crank (3). Piston (13) and swinging lever (1) are articulated by con-rod (14) for conversion of axial displacement of said piston (13) to pendulum motion of swinging lever (1). Swinging lever (1) has section (8) remote from swinging lever fixed joint and inclined at invariable angle to con-rod (5). Lever (1) and con-rod (5) make the crank-type joint.

EFFECT: higher torque at crank.

11 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: block linkage mechanism with reciprocating link contains a post, a crank and a link. A stock with a piston installed in fixed cylinder with possibility of reciprocating movement is attached to the link. The crank is installed in the post in the position providing location of its axis of rotation normal to plane on which the link moves. Horizontally placed pin directed to the link is attached to the end of the crank free from the post. Free end of the pin is inserted in the link guide. Pin diameter is less then width of the link guide, and diameter of circumscribing by the pin circle is less then length of the link guide.

EFFECT: improving reliability and simplifying the design.

2 dwg

FIELD: automobile production.

SUBSTANCE: two versions of a power unit are proposed. The first version is proposed for single-row location of cylinders of internal combustion engines (ICE) when a variable-speed gear divides the row of cylinders into two equal parts located on both sides of the variable-speed gear housing on one geometrical axis. The second version is proposed for two-row location of cylinders of the engine on both sides from the geometrical axis of the inlet shaft of the variable-speed gear, when the engine connecting rods located in one row on one side from the variable-speed gear housing are installed on the axis that is mounted into a plate attaching the above axis to the inlet shaft of the variable-speed gear. A four-stroke ICE and a pulse variable-speed gear have been installed, and an offset scheme of a driving gear of pistons has been used.

EFFECT: improving fuel economy, reducing thermal factor and reducing friction losses.

2 cl, 4 dwg

FIELD: automobile production.

SUBSTANCE: device includes eccentrics in the number of not less than three on each of the shafts, piston-rods - cables, drive and driven shafts, which represent elongated ends of bearing axes of differential boxes of front and rear axles, which are taken out of housings of differentials. In order to increase uniform rotation torque on driven shaft on each of the shafts there can be fixed four to twelve eccentrics.

EFFECT: reduction of production labour, reduction of transport vehicle weight and increasing transmission efficiency.

2 dwg

FIELD: machine building.

SUBSTANCE: crank mechanism of press includes eccentric shaft related to the drive and on which the piston rod is installed. Piston rod is connected by means of a spherical hinge to the support in the slide, which is made in the form of a bearing plate with a cover plate. Slide is installed in the base with possibility of translational movement. Support is installed in the slide by means of guide fences and has the possibility of relative translational movement in the direction perpendicular to the plane of crank mechanism.

EFFECT: possible distortions in kinematic pairs of the mechanism are compensated and possible adjustment of gaps in slide-to-piston connection is provided, which allows improving the reliability of the mechanism.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: mechanism consists of hollow disc (1) with internal equilateral triangular gear (2) with sides in the form of circular arcs, which receives force from stock of piston (6) and transmits it to two straight intermediate shafts (3) rotated with gear (2) with alternatively various speeds through gears which are rigidly attached to intermediate shafts (3). Hollow disc (1) is rotated about axis of intermediate shaft (3) on the axis of which there is corner of triangular gear (2) at the moment.

EFFECT: increasing efficiency of energy of back-and-forth movement of piston and improving operating conditions of piston-cylinder pair owing to reducing the friction.

3 dwg

FIELD: machine building.

SUBSTANCE: device for torque transfer from driving shaft to driven one consists of at least three cams on each shaft, and also of connecting rods coupling cams of driving and driven shafts through bearings. As connecting rods there are used not rigid elements, like cables operating only for tension. The cams on each shaft can be secured both uniformly along angle of rotation or with simultaneous set off of corresponding cams along angle of rotation to 50 degrees on the driving and driven shafts. From four to twelve cams can be mounted on each shaft.

EFFECT: increased specific loads and reduced weight of progressively moving weights; eliminated transition of vibrations caused with connecting rods to resonance of vibrations of whole mechanism and increased uniformity of torque moment on driven shaft.

2 cl, 12 dwg

FIELD: machine building.

SUBSTANCE: crank-rod mechanism consists of case, of rotating crank installed in case and of swash plate hinged to crank. The swash plate has a through orifice with diameter equal to diameter of rod inserted in it; an end of the rod is hinged to a slider. Axis of the orifice of the swash plate is perpendicular to axis of the crank and is directed to a cross point of this axis with axis of crank rotation. The slider is installed in guides parallel to axis of crank rotation and is rigidly tied with the case.

EFFECT: improved weight-dimension characteristics of mechanism and its increased reliability.

1 dwg

FIELD: machine building.

SUBSTANCE: crank-gear consists of movable drive, of crank, of connecting rod, of outlet link with roller entering slot made on stationary link-pole. The connecting rod enters screw kinematic pair with an outlet link. The drive consists of engine and gear and is rigidly connected with a bush of the crank. Motion from the engine to the crank is transferred via the gear.

EFFECT: expanded functionality of gear due to free relative motion of links in gear.

1 dwg

Crank mechanism // 2256112

FIELD: power mechanical engineering.

SUBSTANCE: crank mechanism comprises connecting rod pivotally connected with the crank and piston through slide bearings provided with inserts whose inner cylindrical surfaces cooperate with crankpin and piston pin. The axes of the outer cylindrical surfaces of the inserts are perpendicular to these of their inner cylindrical surface and are arranged in alignment with respect to the axes of the inner surfaces of the connecting rod heads.

EFFECT: reduced cost of manufacturing.

3 cl, 4 dwg

Up!