Transfer

 

(57) Abstract:

The invention relates to the field of engineering. The transmission contains a leading 1 and slave 2 links, made in the form of discs or strips, rolling elements 3 and the clamp 6. One of the links made with the slots 4 for the rolling elements, the other with the slots 5 in the form of a tensile strain of a cycloidal curve on the master link or compressed deformed cycloidal curve on the slave link, the axis of the guide circle which coincides with the axis of the link with the slots. Put into contact with the rolling elements, the clamp 6 is installed coaxially with the link bearing rolling elements, and has a guide in the selection for the other link. Increased gear ratio. 7 Il.

The invention relates to mechanical engineering and can be used in gear with the intermediate bodies moving in the guide elements.

Known transmission containing the master and slave units, made in the form of kinematically connected by means of rolling bodies disks, one of which is made with grooves in the form of epicycloid, and the other with the slots, which are placed in the balls can move along the slots, and the transmission is equipped with a clamp intended for contact with the balls, Ustka with grooves. Cm. French patent 566123 for 1922

The purpose of the invention is the increase of gear ratio by changing the shape of the groove.

In the known transmission groove (the centerline of the groove), interacting with the ball, has the form of epicycloid - normal (ordinary) cycloidal curve.

Cycloidal called curves, the formation of which is associated with the movement of the circle without slipping.

When this ratio is equal to i = r/R =1/2where r is the radius of the disk with the slots to the center of the sphere of the nest, he is the radius of the generating circle in the scheme of education cycloidal axis of the groove; R is the radius of the disk with grooves to the starting point of a cycloidal axis of the groove, the radius of the guide (basic) of a circle in the scheme of education cycloidal axis of the groove;1- the angular velocity of the first in the direction of the flow of energy (smaller) link transfer, accepted for leading;2- the angular velocity of the second (larger) link transmission is taken as a slave.

If the known working transmission adopted for the prototype, where nests under the balls executed on the slave link without changing its geometrical parameters (r and R), to slow the rotation of the driven link, then will increase peredotova ratio will match the design of the transmission, which nest under the balls will be performed on the master element and the slave - grooves. Moreover, we note that the axial line of the groove as the track ball on the end of drive link in both cases will be different from the normal (ordinary) cycloidal curve: the slots will be deformed centerline. Judging by the deviation of the curvature of the deformed trajectory from the normal curvature of the trajectory, we note that a cycloidal curve will have a stretched form, if the nest is on the slave link, and compressed form, if the nest is on the master link.

The stretched shape of the groove on the master link or a compressed form of a groove on the slave link should be in this or another case of uniform slippage of the rolling elements during movement along the axis of the groove and thus provides ahead of the leading link in the first case or the lag slave link in the second case.

Thus, transfer, taken as a prototype, but with the slots on the deformed shape of a cycloidal curve, has a higher gear ratio.

Note that the axis of the groove represents theoretical shape of the groove in the plane. The geometry of the actual groove represents prostranstvennymi and forming the rolling body.

Construction of strain cycloidal curves (DCC) based on theorem "Property points build a cycloidal curves, the essence of which is that a pair of the same points of the building together with the dependent point on the trajectory and the initial point of the curve form of an isosceles trapezoid. Cm. G. M. Churkin. Cycloidal curves, non-traditional technology. Novosibirsk, "EKOR, 1996

To implement the transfer is proposed to use a related method kinematic curves of education, the production of which is associated with the movement of the circle in the uniform slip, i.e., in the form of compressed or stretched deformed cycloidal curves (DC): hypocycloid, epicycloid, pericycle, evolvent and cycloid - placing stretched a choice of five dissimilar DCC on the master link or compressed also a choice of five dissimilar DCC - slave link, thus kinematically linking the slots with the rolling elements.

Functionally align the slots with the rolling bodies is a means for communication with the inner engagement grooves to make hypocycloid (Hypo means under) or pericycle; for communication with external toothing grooves to make epicycloid (e is t and the whole group cycloidal curves. They have a General algorithm deformation.

In Fig. 1 shows a diagram of a transmission with an internal engagement with grooves in the form of a compressed strain hypocycloid; Fig. 2 same - sectional view of Fig. 3 shows a diagram of a transmission with the external engagement with grooves in the form of tensile strain epicycloid; Fig. 4 same - sectional view of Fig. 5 - scheme transfer with the external engagement with grooves in the form of a compressed strain epicycloid; Fig. 6 is the same, the section of Fig. 7 - scheme transfer with internal engagement with grooves in the form of tensile strain precisley.

As mentioned transfer unified algorithm, thus avoiding the repeated repetition of the above and a single (unified) text describing them. The transmission contains a leading 1 and slave 2 links, made in the form of discs or strips and kinematically connected through phone 3 bearings, one of which has a socket 4 for the rolling elements, the other of the grooves 5 in the form of a tensile strain of a cycloidal curve on the master link or compressed deformed cycloidal curve on the slave link, the axis of the guide circle which coincides with the axis of the link with the slots, and put into contact with the rolling elements of the clamp 6, before the i.i.d. sample (deepening), hosting part of another link. The body 3 of the rolling elements are able to move along the axes of the slots 5.

The transfer works as follows. During the rotation of the leading link 1 body 3 rolling, moving along the groove, passes circumferential force to the slave unit 2. The cycle repeats continuously.

The transmission containing the master and slave units, made in the form of discs or strips and kinematically connected by means of rolling elements, one of which has a slot for the rolling bodies, and the other grooves in the form of a cycloidal curve, the axis of the guide circle which coincides with the axis of the link with the slots, and put into contact with the rolling elements of the clamp that is designed to contact with the rolling elements mounted on the axis of the link bearing rolling elements, and executed with the sample (deepening), which placed part of another element, characterized in that the grooves are made on the master link, have the form of a tensile strain of a cycloidal curve or shape of the compressed strain of a cycloidal curve - on the slave link.

 

Same patents:

The invention relates to the field of engineering

The invention relates to designs of mechanical transmission

The invention relates to mechanical engineering and can be used to convert one type of motion to another

Ball variator disk // 2162555
The invention relates to the field of mechanical engineering

The invention relates to the field of mechanical engineering

The invention relates to the field of engineering

The invention relates to mechanical engineering and can be used in high-precision actuators heavy-duty machines and mechanisms

Transfer // 2111393
The invention relates to mechanical engineering, to the transmission with intermediate bodies moving in the guide member

FIELD: mechanical engineering.

SUBSTANCE: unit comprises tree disks (1), (2), and (3) which are arranged in series along the single axis and co-operate with each other through a chain of balls (6). Each of the disks can be driving, driven, and bearing links. Intermediate disk (1) is a floating washer freely mounted on the eccentric for the interaction with balls (6) by its cylindrical side. The mating sides of disks (2) and (3) are provided with closed curved way (5) and interrupted radial grooves (4) uniformly spaced over periphery. The depth of the closed way is greater than the radius of ball (6). The cross-pieces of radial grooves (4) are provided with axial projections (9) in the zone of movement of the centers of balls (6). The surfaces of projections (9) are inscribed in the surface of closed way (4) with a spaced relation for providing mutual rotation of the disks.

EFFECT: enhanced reliability.

4 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention can be used in drives of high-accuracy machines and mechanisms. Proposed transmission contains high-speed shaft 1 and slow-speed shaft 2, eccentric 3, stationary central wheel 9 with internal shaped profile, holder 7 with radial slots, roller intermediate links 8 placed in slots, cam 4 and additional cam 10. Cam 4 with shaped profile on outer surface is installed on eccentric 3 of high-speed shaft 1 through antifriction bearing and is in mechanical contact with roller intermediate links 8. Additional cam 10 is rigidly coupled with slow-speed shaft 2 and is turned relative to cam 4. Number of lobes of cam 4 is equal to number of lobes of additional cam 10 and differs from number of roller intermediate links 8.

EFFECT: reduced weight, axial dimensions and unbalance of transmission.

2 cl, 2 dwg

Gearbox // 2253774

FIELD: mechanical engineering.

SUBSTANCE: invention can be used in step gearshift mechanisms. Proposed gearbox has input shaft 1 and output shaft 2 installed in housing 3, differential transmitting modules and gearshift members. Each transmitting module contains three members, namely inlet one 4-7, outlet one 12-15and intermediate one 8-11. Modules are series-connected so that inlet member of following module is connected with outlet member of preceding module. Input shaft 1 of gearbox is connected with inlet member 4 of first module. Output shaft 2 of gearbox is connected with outlet member 15 of last module. Control members are made as shifters 16-19 connecting intermediate member of each module either with housing 3, or with its outlet member.

EFFECT: simplified design of gearbox owing to increased number of speed at the same number of transmitting modules.

4 cl, 2 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention is designed for converting rotary motion of control motor into translational motion of output shaft. Actuating mechanism contains housing 5, drive shaft connected with wave shaper 3, flexible wheel, rigid wheel made in form of two output members 7, and 8, support device in form of balls located in guide grooves of housing 5 and output member. Output members 7 and 8 are made in form of flat plates with end face wavy surface orthogonal to axis of rotation of engine. Wave shaper 3 of end face type can be roller, or plunger or electromagnetic one. Flexible wheel is made in form of fixed cage 4 in axial holes of which balls 6 are uniformly spaced over circumference.

EFFECT: enlarged functional capabilities of mechanism owing to provision of movement of output member square to axis of rotation of motor, increased load capacity, rigidity, reduced inertia of rotating parts.

4 cl, 6 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention can be used in drives of machines and mechanisms of wide application. Proposed transmission unit contains three disk members, one disk member 1 is fitted on eccentric 2 and two coaxial members of which support member 5 is coupled with housing and outlet member 7 is coupled with output shaft. Members 1, 5, 7 interact through chain of balls 9 arranged in periodical race ways ob corresponding surfaces of outlet member 7 and support member 5 pointed to each other. Race way 8 of member 7 is closed one. Race way 5 of member 5 is interrupted, consisting of grooves uniformly spaced over circumference. Each groove is made closed and toroidal with radius of rotation of circumference generatrix equal to radius of ball 9, and distance to axis of rotation equal to eccentricity of transmission unit.

EFFECT: provision of uniform movement of balls and reduction of wear.

5 dwg

FIELD: general engineering.

SUBSTANCE: invention relates to means of conversion of speed of rotation without use of gear wheels. It can be used in drives of machines and mechanism. Proposed ball drive contains two central disks 1 and 2 with floating plate 9 freely on eccentric 6 placed in between. Holes 10 and 11 are made on surfaces of disks 1 and 2 pointed to floating plate 9 in which balls 12 and 13 are fitted with clearance providing free rotation of balls. Closed periodical raceways 14 and 15 are made on both end faces of floating plate 9 which interact with holes 10 and 11 by means of two chains of balls 12 and 13.

EFFECT: decreased unbalance, improved manufacturability of drive.

4 cl, 7 dwg

Planet ball gearing // 2253778

FIELD: mechanical engineering.

SUBSTANCE: planet ball gearing comprises central bearing disk (1), central output disk (2) and floating disks (8) and (9) interposed between them. Disks (8) and (9) are mounted on the antiphase eccentrics of output shaft (7) through bearings (10) and (11). The surfaces of disks (8) and (9), which face each other, are provided with periodic raceways (12) and (13) which cooperate through the first chain of balls (14). The surfaces of floating disks (8) and (9), which face central disks (1) and (2), are provided with closed periodic raceways (16) and (17). Periodic raceway (16) cooperates with the periodic members made of semispherical hollows (18) made in the surface of bearing central disk (1) through chains of balls (19). Periodic raceway (17) cooperates with periodic members made of semispherical hollows (2) in the surface of output central disk (20) through chains of balls (21).

EFFECT: simplified method of manufacturing.

1 cl, 5 dwg

FIELD: the invention refers to engineering industry and refers to construction of mechanic drives.

SUBSTANCE: movement transmission in a face gear-roller drive from the tooth of a driving-wheel 2 to the tooth of the driven wheel 4 is fulfilled through a pair of rollers 5 and 7. The rollers 5,7 are positioned in a fixed ring 8 and placed on the axle in such a manner that interior roller 5 contacts with the tooth of the driving wheel 2 and the exterior 7 - with the tooth of the driven wheel 4.

EFFECT: expansion of possibilities of using, simplification of a construction.

8 dwg

FIELD: mechanical engineering.

SUBSTANCE: friction ball mechanism comprises driving member (3), driven member (4), and balls. Driving member (3) and driven member (4) are made of male and female spherical parts provided with ways made of grooves (5) and (6). Ring grooves (5) and (6) intersect at two points where balls are located. The angle of inclination of grooves (5) and (6) with respect to each other does not exceed the angle of ball wedging.

EFFECT: enhanced reliability.

8 cl, 12 dwg

FIELD: mechanical engineering.

SUBSTANCE: transmitting unit comprises races (42) and (43). Race 43 is made of a rocking washer. The surfaces of the rotation bodies that face each other are provided with closed ring ways (44) and (45) that cooperate with each other via balls (46) (rolling bodies) which are in a permanent contact with ways (44) and (45). The angle of inclination of the rocking washer should provide the ways to be inclined to each other at the site of the contact with the rolling bodies at an angle less or equal to the angle of self-wedging of the rolling bodies.

EFFECT: enhanced reliability.

47 cl, 47 dwg

Up!