Reduction gear (versions)

FIELD: machine building.

SUBSTANCE: housing (1) accommodates high-speed shaft (4) and low-speed shaft (5) aligned with the former. Disk (16) with driving wheels (18, 19) is fitted on eccentric (8) of shaft (4). Driven wheel (11) comprises rollers (13) in mesh with teeth of gear wheels (18, 19). The latter are fitted on disk (16) with the help of pins (17), each having its second end entering the off-center opening in washer (20) arranged to rotate in housing (1). Eccentricity range equals the distance between centers of driving and driven wheels. With shaft (4) rotating, not gyrating disk (16) and wheels (18, 19) effect orbital motion and interact with rollers (13) to rotate driven wheel (11) and shaft (5) fitted thereon. Additionally, five design versions of proposed reduction gear are covered.

EFFECT: increase power transfer, noiseless and reliable operation.

15 cl, 14 dwg

 

The invention relates to mechanical engineering, in particular to the orbital gear coaxially with high-speed and low-speed shafts, and can be used to replace used in the industry, a large number of different types of gearboxes with ratios from 3.5:1 to 1000:1.

Closest to the invention by the technical nature of a gearbox containing the input shaft coaxially with the leading crank mounted in the housing for rotation and is made in the form of glass with an inner bore, a finger mounted in the inner hole of the crank and associated with non-rotating sprocket wheel which is in engagement with a driven wheel coaxially connected with the output shaft, with the drive sprocket has the possibility of orbital motion around the axis coinciding with the axis of the drive and driven shafts; the axis of the crank does not intersect with the axis of the inner bore of the crank, and a driving wheel provided with pins, each with its the second end enters the hole made by eccentricity in the corresponding washer mounted rotatably in the housing, and the value of eccentricity is equal to the distance between the centers of the drive and driven wheels (EN 2229046 C1, F16H 13/02, 21/48).

Second closest to the invention to the technical essence is the gearbox, which led to the forest with internal teeth made of rollers, installed parallel to the teeth of the drive wheel in coaxial holes of the crown and disc, evenly spaced around the circumference coincident with the axes of the holes, application No. 2005107155 (008641) "Reducer orbital", 5, 14.03.2005,

The disadvantages of the gear listed above, include: the Dependence of the outer diameter of the gear from the transmitted power (from module locked) in the case of the slave wheel rollers instead of teeth and the selected transmission ratio from the speed of the shaft to slow;

the unevenness of the angular speed of rotation of the driven wheel in the interval between the disengagement of one pair of teeth on the master and the slave sprocket and the entrance to engage the next pair of teeth. The amplitude of the non-uniformity associated with the number of teeth of the drive wheel;

lack of reliability (rigidity) securing the crown to the drive of the driven wheel when using rollers instead of teeth. The present invention is to remedy these disadvantages or reduce their impact.

The problem is solved in that the gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed shafts, drive and a crown connected to or made as one unit and coaxially connected with the low speed shaft, a Cam on the high-speed shaft, the axis of which the computers is correctly offset from the axis of the latter, non-rotating drive wheel mounted on a Cam and meshed with a driven wheel, the teeth of which are made of rollers, each of which is mounted in aligned holes of the crown and the drive sprocket has the possibility of orbital motion around the axis of the shaft and provided with pins, each of which its second end is in the hole made by eccentricity in the corresponding washer mounted rotatably in the housing, and the value of eccentricity is equal to the distance between the centers of the drive and driven wheels according to the invention is provided with an additional wheel, fastened coaxially with the sprocket wheel and meshed with the projecting ends of the elongated rollers slave wheels.

The problem is solved also by the fact that the width of the additional wheels are made equal to or less than the width of the drive wheel.

The problem is solved also by the fact that on the low speed shaft is molded, made as one whole, the crown and the disk have the crown of the holes for the clips open from the inside toward the center.

The problem is solved also by the fact that the gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed shafts, drive and a crown connected and coaxially connected with the low speed shaft, a Cam on the high-speed shaft, the axis of which p is parallel shifted relative to the axis of the latter, non-rotating drive wheel mounted on a Cam and meshed with a driven wheel, the teeth of which are made of rollers, each of which is mounted in aligned holes of the crown and drive additional sprocket fastened coaxially with the sprocket wheel, with the drive wheels are able orbital motion around the axis of the shaft and provided with pins, each of which its second end is in the hole made by eccentricity in the corresponding washer mounted rotatably in the housing, and the value of eccentricity is equal to the distance between the centers of the drive and driven wheels according to the invention in the crown made additional holes, posted between the coaxial holes of the crown and disc, the axes of all of the holes are located on the same circle, and additional holes crown inserted additional rollers which are fixed with an additional sprocket wheel.

The problem is solved also by the fact that the rollers are placed in the crown and the disk is made of two-stage and inserted into the holes in the crown of steps smaller diameter.

The problem is solved also by the fact that the crown made an additional flange with holes, each of which has a second end extended an additional spot on the leading stake is Oh coaxially with the possession of the third drive wheel, geared with the projecting ends of the elongated castors.

The problem is solved also by the fact that the gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed shafts, two gears with internal gearing, one of which led coaxially connected with the low-speed shaft, and the other leading installed on high-speed Cam shaft and has the capability of orbital motion around the axis of the shafts, wheel-satellite, coaxially fixed to the sprocket wheel and meshed with a fixed wheel, attached to the housing according to the invention is equipped with additional wheels meshed with the respective wheels, one of them is coaxially mounted on the driving wheel, and the other is fixed coaxially on the slave wheel in each bonded pair of wheels, the diameters of the pitch circles of the teeth are equal.

The problem is solved also by the fact that in each bonded pair of wheels have an equal number of teeth, the teeth of the drive wheel and additional to it rotated relative to each other by an angle equal to half the angular spacing between two adjacent teeth or less this half.

The problem is solved also by the fact that the gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed the shafts, two gears with internal gearing, one of which led coaxially connected with the low-speed shaft, and the other leading with external teeth installed on the neck of the eccentric speed of the shaft with the possibility of orbital motion around the axis of the shafts, wheel-satellite, coaxially connected with the sprocket wheel and meshed with a fixed wheel, attached to the housing according to the invention is connected between the sprocket wheel and wheel-satellite, made in the form of a spline connection, in which the teeth of the drive wheel is inserted without clearance in the corresponding slots made in the wheel-satellite.

The problem is solved also by the fact that the gearbox contains installed sequentially and coaxially to the shaft housing, a gear wheel with internal teeth, a bearing ring and the lid, pulled along a common axis fasteners, each of which is in coaxial holes drilled in the casing, a toothed wheel, the bearing ring and the cover and located on a circle centered on the common axis of the shafts and gear.

The problem is solved also by the fact that the gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed shafts, two gears with internal gearing, one of which led coaxially connected with the low-speed shaft, and the other non-rotating leading to the outside is diversified teeth installed on the neck of the eccentric speed of the shaft with the possibility of orbital motion around the axis of the shaft, according to the invention have a disk coaxially fixed to the sprocket wheel and having pins, each of which its second end is in the hole made by eccentricity in the corresponding washer mounted rotatably in the housing, and the value of eccentricity is equal to the distance between the centers of the drive and driven wheels.

The problem is solved also by the fact that the gearbox contains installed sequentially and coaxially to the shaft housing, gasket, made in the form of a ring, the bearing ring and the lid, pulled along a common axis fasteners, each of which is in coaxial holes drilled in the housing, the spacer, the bearing ring and the cover and located on a circle centered on the common axis of the shafts and gear.

The problem is solved also the fact that the connection between the low speed shaft and a driven wheel in the gearbox is made in the form of a spline connection, in which the teeth of the driven wheel coupled without radial and angular gap slotted performed on the low speed shaft.

The problem is solved also by the fact that the gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed shafts, two gears with internal gearing, one of which led coaxially connected with the low-speed shaft, and the other leading setup the network on the neck of the eccentric speed of the shaft and has the capability of orbital motion around the axis of the shaft, wheel-satellite, coaxially mounted on the driving wheel and meshed with a fixed wheel, made of rollers installed in the holes of the housing, according to the invention reducer contains installed sequentially and coaxially to the shaft body, a gasket in the form of a ring, the outer ring of the bearing and the cover or the housing, the outer ring of the bearing and the cover is pulled along a common axis fasteners, each of which is in coaxial holes drilled in the housing to seal the bearing outer ring and the cover, or in the housing, the bearing outer ring and the cover, and located on a circle with centre on the total the axis of the shafts and gear, while the rollers of the fixed wheel second with their ends inserted in the holes formed in the outer ring of the bearing.

The invention is illustrated by drawings.

Figure 1 shows the orbital gear in the section.

Figure 2 shows a cut of the crown of the roller.

Figure 3 shows the end view on the crown and the disk.

Figure 4 shows a section a-a figure 3

Figure 5, 6, 7 shows embodiments of orbital gear.

On Fig shows a section b-B in Fig.7.

In figures 9 and 10 show embodiments of the orbital gear

11 drawn to abstract.

On Fig, 13, 14 depicts embodiments of orbital gear.

Gearbox orbit the capacity includes a housing 1, the outer ring 2 of the bearing, the cover 3, the high-speed shaft 4 and mounted coaxially with the shaft 4 low speed shaft 5. The ring 2 and the cover 3 are pressurized to detail. The shaft 4 is made a hole, the axis 6 which is parallel shifted by the value of e with respect to axis 7, which is the common axis of the shafts 4 and 5, the body 1, the ring 2 of the bearing and the cover 3. In the specified hole of the shaft 4 is inserted eccentric (finger) 8, the axis of which coincides with the axis 6, and a hole 9 is inserted a cylindrical protrusion 10 of the shaft 5. Inside the gearbox shaft drive 11, having a crown 12. The disk and the crown made as one (together). In them with holes that are located on a circle centered on the axis 7, in which are mounted rollers 13 having protruding from the crown 12 and ends 14. Between the ring 2 and a crown of 12 set the needle rollers 15, which are used for roller bearings. On the finger 8 has a disk 16, and by means of pins 17 fixed non-rotating toothed wheels 18 and 19, the engagement with the rollers 13. Each pin 17 to the second end enters the hole made with the eccentricity e in the washer 20 is mounted rotatably on the bearing 21 in the housing 1. The counterweight 22 is mounted on the pin 8 and is fixed on the high-speed shaft 4.

Because the distance from the center of gravity of the counterweight 22 to the shaft 7 more eccentricity e, it is possible either partially urav obesity gear against the action of the orbital moving masses or completely. The finger 8 and the slide bearing 23 should be made of antifriction alloys. The disk 11 is fixed on the shaft 5 by a key 24 and a screw 25. High-speed shaft 4 has a hole 26 and the keyway 27 to install the motor shaft (not shown). Made as one piece (one piece of metal) disc 11 crown 12 with the flange 28 are sufficiently rigid construction of the driven wheel. Studies have shown, for a gear pair of wheels, in which the difference of teeth Z1and Z2equal to 3 units, the flange 29 (see figure 2, 3, 4) must be cut from the inside to the value α, otherwise the holes 30 should be open from the center.

Non-rotating drive sprocket 18 fixed to the disc 16 and having the possibility of orbital motion, fastened coaxially with the additional gear wheel 19, which is geared with the speakers of the crown 12 end 14 of elongated rollers 13.

Gearbox orbital figure 5 includes a housing 31, the outer ring 32 of the bearing, the cover 33, the high-speed shaft 34 and mounted coaxially to the shaft 34 of the low speed shaft 35. The finger 36 of the shaft 34 has a disk 37, which is fixed by means of pins 38 drive wheel 39 and the additional drive wheel 40. Follower wheel consists of a disk 41, the crown 42, two rollers 43 and additional rollers 44, which may be fruhstorferi. These rollers are inserted without clearance levels smaller diameter in the holes drilled in the flange 45 of the crown 42. These openings 46 and 47 are evenly spaced on one dividing a circle centered on the axis 7.

The holes 46 are pressed stage 48 of the rollers 43. Between the ring 32 and the crown 42 is installed needle rollers 49.

Each pin 38 and the second end enters the hole made by eccentricity in the washer 50 is mounted rotatably on the bearing 51 in the housing 31, and the value of eccentricity is equal to the distance between the axes 6 and 7. Figure 6 gearbox has an increased width by increasing the width of the ring 52 and a gear ring 53. Accordingly, increasing the length of the needle roller 54. The crown 53 is provided with an additional flange 55, which is made holes for installing the rollers 56. They and the rollers 43 are evenly spaced cutting circles of the same diameter. The rollers 56 are optional, their second end of each roller is installed in the hole of the flange 55, and the end 57 of the roller 56 is abroad flange. Gear 58 meshed with rollers 43, the second gear wheel 59 meshed with the rollers 56, and the third additional gear 60 meshed with the projecting ends 57 of the rollers 56. The rollers 56 are shifted along the dividing circle around rollers 43 on ug is l, or equal to half the angular spacing between two adjacent teeth of the wheel or less this half.

Between the wheels 58, 59 and 60 are installed washers 61. The counterweight 62 balances the inertial forces of the orbital moving masses. In the Central hole 63 of the shaft 34 can be mounted to the motor shaft. The motor (not shown) fixed to the flange 64. The key of the shaft of the motor is set into the key groove 65.

7 shows the gear orbital, which has been consistently found to housing 66, a gear wheel 67 internally toothed ring 68 of the roller bearing and the cover 69. In these parts with holes, aligned and located on a circle whose center lies on the axis 7 of the gearbox. Fastener 70 is inserted into these holes and tighten the parts 66, 67, 68, 69 along the axis 7 of the gearbox. The shafts 71 and 72 mounted coaxially to the gear (have a common axis). The shaft 71 includes eccentric with two indigenous tails and necks 73, the axis of which is shifted in parallel with respect to axis 7 by the amount that is On the neck of the eccentric 73 worn wheel gears 74 and 75, which are relative to each other is rotated and fastened together by pins 76. To do this, each wheel is made corresponding to the keyways. Gear 74 of their teeth inserted without radial and angular clearance in the slots made in the teeth, the m wheel-satellite 77. Last meshed with a fixed wheel 67. The driven gears 78 and 79 meshed respectively with the leading gears 74 and 75 and fastened together by pins 80. Between the wheel 79 and the ring 68 mounted needle roller 81. Wheel 79 their teeth worn without radial and angular clearance in the slots made on the flange 82 of the low speed shaft 72.

Figure 9 shows the orbital gear, which has been consistently found to housing 83, the spacer 84, the outer ring 85 of the roller bearing and the cover 86. In these parts with holes 87, located on a circle centered on the common axis 7 of the gearbox and shafts 88 and 89. In hole 87 is inserted fasteners 90, tightening the gear along its axis 7. On the neck of the eccentric shaft 91 88 equipped drive wheels 92 and 93, which are rotated relative to each other and fastened with dowels (see Fig). The teeth of the wheel 92 is inserted without clearance (angular and radial) in slots made in the disc 94. The driven wheels 95 and 96 meshed respectively with wheels 92 and 93 and is secured by pins 97 on the flange (ROM) 98 low speed shaft 89. The disc 94 is supplied with pins 99, each of which its second end is in the hole made with the eccentricity e in the washer 100 is mounted rotatably in the housing 83, and the value of eccentricity is equal to the distance between the centers of the driving and the driven wheels. The housing 83 has a ledge 101, in which threaded holes 102 for mounting motor flange.

Figure 10 shows the gearbox, which has a high-speed shaft 103 and the low speed shaft 104 covers the seals 105, at the same time they are tightened with the ends caps 106 and bolts 107.

In the drawing Fig depicted reducer orbital containing installed on the axis 108 (coaxial) high-speed shaft 109 and the low speed shaft 110, consistently established the housing 111, the gasket 112, made in the form of a ring, the outer ring of the bearing 113 and the end cap 114. Gasket 112 and the housing 111 may be made of a single piece of metal as a whole.

These items are pulled along a common axis 108 fasteners 115, each of which is in aligned holes 116, is made in the case, the gasket, the outer ring of the bearing and end cap located on a circle centered on the axis 108.

The gearbox contains the rollers 117, mounted with their ends in the holes of the housing 111 and the outer ring of the bearing 113. With rollers 117 meshed gear-pinion 118 which is rigidly mounted on the driving wheel 119. These wheels are installed on the Cam 120. Between a bearing outer ring 113 and a driven wheel 121 is installed needle rollers 122.

The gearbox shown on Fig has an annular gasket made as one is aloe (together) with the housing 123. In the drawing Fig the same gasket made as one whole (together) with the bearing ring 124. The needle rollers 117 second ends inserted in the holes of the outer rings 113 and 124 bearings. Fasteners 115 are installed in the holes in the parts 123, 113, 114 (Fig) and in part holes 111, 124, 114 (Fig).

Work reducers

Figure 1. If you rotate the shaft 4 of the electric motor, the non-rotating disk 16 with the gear wheels 18 and 19 perform an orbital movement around the axis 7, acting on the rollers 13. Gears 18 and 19 are forced to rotate follower wheel 11 and the shaft 5. Its final drive ratio from the high-speed shaft to the speed calculated by the formula

; where:

Z1- the number of the rollers of the driven wheel;

Z2the number of teeth of the drive wheel.

7. When the shaft 71 clockwise wheel-pinion 77, objetivas wheel 67 rotates counterclockwise.

Wheels 74 and 75, interacting with wheels 78 and 79, rotate them clockwise. Counterclockwise wheels 78 and 79 will rotate, if the diameter of dividing the circle will be larger diameter dividing the circumference of the wheel 67. Its final drive ratio from the shaft 71 to the shaft 72 calculated by the formula

; where:

Z1the number of teeth of the driven wheel;

Z2- the number is the primary objective of the teeth of the stationary wheel;

ΔZ is the difference between the teeth of the slave and the drive wheel (it is equal to the difference between the teeth of the stationary wheel and wheel-satellite).

The technical result is to increase the transmitted power gear without increasing its outer diameter, smoother (without vibration), noiseless and reliable operation.

For mastering the techniques of designing and calculations of different types of orbital gears takes a long time to do their research.

In order to accumulate experience, to quickly and easily design any of the 5000 7000...theoretically existing orbital gears, you will need 2 to 3 years of hard work.

The author has a 12-year experience of research data reducers.

1. Gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed shafts, drive and a crown connected to or made as one whole, and coaxially connected with the low speed shaft, a Cam on the high-speed shaft, the axis of which is parallel shifted relative to the axis of the latter, the non-rotating drive wheel mounted on a Cam and meshed with a driven wheel, the teeth of which are made of rollers, each of which is mounted in aligned holes of the crown and the drive sprocket has the possibility of orbital motion around the axis in the crystals and provided with pins, each of which its second end is in the hole made by eccentricity in the corresponding washer mounted rotatably in the housing, and the value of eccentricity is equal to the distance between the centers of the drive and driven wheels, characterized in that it is provided with an additional wheel, fastened coaxially with the sprocket wheel and meshed with the projecting ends of the elongated rollers of the driven wheel.

2. The gearbox according to claim 1, characterized in that the width of the additional wheels are made equal to or less than the width of the drive wheel.

3. The gearbox according to claim 1, characterized in that the holes for the clips in the crown is made open from the inside toward the center.

4. Gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed shafts, drive and a crown connected and coaxially connected with the low speed shaft, a Cam on the high-speed shaft, the axis of which is parallel shifted relative to the axis of the latter, the non-rotating drive wheel mounted on a Cam and meshed with a driven wheel, the teeth of which are made of rollers, each of which is mounted in aligned holes of the crown and drive additional sprocket fastened coaxially with the sprocket wheel, with the drive wheels are able orbital motion around the axis of the shaft and provided with pins, which each of them their the second end enters the hole, made with eccentricity in the corresponding washer mounted rotatably in the housing, and the value of eccentricity is equal to the distance between the centers of the drive and driven wheels, characterized in that the crown made additional holes, placed between the coaxial holes of the crown and disc, the axes of all of the holes are located on the same circle, and additional holes crown inserted additional rollers which are fixed with an additional sprocket wheel.

5. The gearbox according to claim 4, characterized in that the rollers are placed in the crown and the disk is made of two-stage and inserted into the holes in the crown of steps smaller diameter.

6. The gearbox according to claim 4 or 5, characterized in that the crown made a flange with holes, each of which has a second end extended an additional spot on the drive wheels coaxially with the possession of the third drive wheel, the engagement with the projecting ends of the additional rollers.

7. Gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed shafts, two gears with internal gearing, one of which led coaxially connected with the low-speed shaft, and the other leading installed on high-speed Cam shaft and has the capability of orbital motion around the axis of the shafts to the eco-satellite coaxially mounted on the driving wheel and meshed with a fixed wheel, fixed on the housing, wherein the master and slave wheel equipped with additional wheels, one of them is coaxially mounted on the driving wheel, and the other is fixed coaxially on the slave sprocket and the low speed shaft, each bonded pair of wheels, the diameters of the pitch circles of the teeth are equal.

8. The gearbox according to claim 7, characterized in that each bonded pair of wheels have an equal number of teeth, the teeth of the drive wheel and extra rotated relative to each other by an angle equal to half the angular spacing between two adjacent teeth or less this half.

9. Gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed shafts, two gears with internal gearing, one of which led coaxially connected with the low-speed shaft, and the other leading with external teeth installed on the high-speed Cam shaft with the possibility of orbital motion around the axis of the shafts, wheel-satellite, coaxially connected with the sprocket wheel and meshed with a fixed wheel attached to the housing, characterized in that the connection between the sprocket wheel and wheel-made satellite in the form of a spline connection, in which the teeth of the drive wheel insert is received without clearance in the respective slots, made in the wheel-satellite.

10. The gearbox according to claim 9, characterized in that it contains a set sequentially and coaxially to the shaft body, gear, bearing ring and the lid, pulled along a common axis fasteners, each of which is in coaxial holes drilled in the casing, a toothed wheel, the bearing ring and the cover, and located on a circle centered on the common axis of the shafts and gear.

11. Gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed shafts, two gears with internal gearing, one of which led coaxially connected with the low-speed shaft, and the other non-leading installed on high-speed Cam shaft with the possibility of orbital motion around the axis of the shaft, characterized in that the gearbox is equipped with a disk coaxially fixed to the sprocket wheel and having pins, each of which its second end is in the hole made by eccentricity in the corresponding washer mounted rotatably in the housing, and the value of eccentricity is equal to the distance between the centers of the drive and driven wheels.

12. The gear unit according claim 11, characterized in that it contains a set sequentially and coaxially to the shaft body, a gasket in the form of a ring, the bearing ring and the lid, pulled along a common OS the fasteners, each of which is in coaxial holes drilled in the housing, the spacer, the bearing ring and the cover, and located on a circle centered on the common axis of the shafts and gear.

13. The gear unit according to item 11 or 12, characterized in that the connection between the low speed shaft and a driven wheel is made in the form of a spline connection, in which the teeth of the driven wheel coupled without radial and angular gap slotted performed on the low speed shaft.

14. Gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed shafts, two gears internal gearing, one of which led coaxially connected with the low-speed shaft, and the other leading installed on high-speed Cam shaft and has the capability of orbital motion around the axis of the shafts, wheel-satellite, coaxially mounted on the driving wheel and meshed with a fixed wheel, made of rollers installed in the holes of the housing, wherein the gear set contains sequentially and coaxially to the shaft body, a gasket in the form of a ring, the outer ring of the bearing and end cap, pulled along a common axis mounting parts, each of which is in coaxial holes drilled in the housing, the gasket, the outer ring of the bearing and end cap, and located on a circle centered on the common axis of shafts and gearing, while the rollers of the fixed wheel second with their ends inserted in the holes of the outer ring of the bearing.

15. Gearbox orbital containing a coaxially mounted in the housing of the high-speed and low-speed shafts, two gears with internal gearing, one of which led coaxially connected with the low-speed shaft, and the other leading installed on high-speed Cam shaft and has the capability of orbital motion around the axis of the shafts, wheel-satellite, coaxially mounted on the driving wheel and meshed with a fixed wheel, made of rollers installed in the holes of the housing, wherein the gear set contains sequentially and coaxially to the shaft housing, the outer ring of the bearing and end cap, pulled along a common axis fasteners, each of which is in coaxial holes drilled in the housing, the bearing outer ring and end cap, and located on a circle centered on the common axis of the shafts and gear, while the rollers of the fixed wheel second with their ends inserted in the holes of the outer ring of the bearing.



 

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Reduction gear // 2360161

FIELD: transportation.

SUBSTANCE: reduction gear comprises spindle (11), which passes substantially perpendicular to carrier (12) and arranged with possibility of radial deviation from initial position under load. Spindle and carrier have support surfaces (23, 24) in shape of substantially truncated cone, normal lines to which pass substantially through centroid of spindle protruding part. In initial position of spindle there is a gap between support surfaces.

EFFECT: increased sensitivity to balancing of common load.

8 cl, 4 dwg

FIELD: transportation.

SUBSTANCE: eccentric planetary gear of internal engagement is intended to transform rotation speed with transmission ratio in the range of 5-100 for one step. There is central wheel (6) of internal engagement installed with teeth in the form of pin teeth (16) and planetary block (14) with teeth of cycloidal shape engaged with pin teeth. Rotation of planetary block (14) is transmitted to outlet shaft with the help of central (4) with fingers (5), which interact with open cuts in the form of circular arc on periphery of planetary block. Planetary block is arranged with single crown of complex shape, which has cycloidal tooth profile on one side, and on the other side tooth has a profile made of circular arcs. Number of cycloidal teeth is equal or multiple to number of teeth made of circular arcs. Profiles are outlined with curves that in case of combination in single plane lie one inside another without crossings.

EFFECT: increased strength and simplified technology of planetary block manufacturing.

3 cl, 9 dwg

Planetary gear // 2357138

FIELD: machine building.

SUBSTANCE: invention is related to machine building, in particular to planetary gears. Planetary gear comprises composite carrier (7), which consists of satellite block (8) and hub (9), which are connected to each other by compensation unit arranged in the form of splined joint. Satellite block (8) consists of two jaws (10, 11), which are rigidly connected to each other by means of links (12). Sections of splined joint are installed on links (12) between jaws (10,11) and on external surfaces of hub (9) crown sectors in annular volume (21), which is limited by central wheels (1,4) and jaws (10,11) of satellite block.

EFFECT: increased reliability and durability of planetary gear, due to balancing of load in length of contact lines of toothed gears of satellites with central wheels and between satellites.

6 dwg

Planet gear // 2244181

FIELD: mechanical engineering.

SUBSTANCE: planet gear has input shaft with eccentric , race, and satellites.

EFFECT: improved design.

2 cl, 8 dwg

FIELD: mechanical engineering.

SUBSTANCE: rolling bearings of shaft (10) are housed in eccentric sleeves (3) and (4). Sleeve (3) receives bushings (5) and (13). Sleeve (4) receives bushings (6) and (14). First bushings (5) and (6) are made of eccentric and provided with conical outer surface and radial grooves. Second bushings (13) and (14) are mating with first bushings (5) and (6) over the spherical surface whose center is on the axis of shaft (10). Additional spherical surfaces are mating with the spherical surfaces of bearing washers (15) and (16) mounted on shaft (10). Bearing washers (15) and (16) are arranged in stop nuts (17) and (18) mounted in housing (2).

EFFECT: expanded functional capabilities.

5 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

Gear mechanism // 2250340

FIELD: mechanical engineering.

SUBSTANCE: rotor axis of gear mechanism, performing a planetary movement, is displaced relatively to stator axis for distance of engagement eccentricity. As source auxiliary contour ellipse is used, while proportional coefficient k, determining radius of guiding circle, is taken equal to half necessary number of teeth z of wheel (k = z/2), optimal shape of its teeth is provided by rational combination of ellipse shape coefficient λ, equal to relation of lengths of its semi-axes and eccentricity coefficient of auxiliary contour, in form of relation of length of greater ellipse semi-axis to rolling circle radius, while inner and outer profiles are made in form of elliptic profiles from common ellipse contour.

EFFECT: simplified manufacture.

3 cl, 11 dwg

Reduction gear // 2250398

FIELD: mechanical engineering; summing-up rotary motion from several shafts.

SUBSTANCE: proposed reduction gear has housing 2 with covers 1, detachable horizontal shafts 5 and vertical shafts 10 and 11 with gears 7 and 9. Housing 2 is provided with cavities 6 for gears 7 with holes 3 and mounting seats for horizontal shafts 5 and mounting seats for vertical seats 10 and 11 in center of housing. Mounting seats for vertical upper shaft 11 and lower shaft 10 are made in centers of covers 1. Shafts 5 are located symmetrically and they are diametrically opposite relative to circle. Gears 9 of vertical shafts 10 and 11 are thrown into engagement with all gears 7 of horizontal shafts 5.

EFFECT: summing-up rotation of several quick revolving shafts into rotary motion of two shafts at low angular velocity.

2 dwg

FIELD: mechanical engineering.

SUBSTANCE: two-speed planet cycloidal reduction gear comprises housing (1), cover(2), input shaft (1), output shaft (18), corner eccentric of the first gearing, satellite pinion (5), and central pinions (4) and (7), pinion (7) being movable. All the pinions are mounted on output shaft (1) via bearings (9), (19), and (20). Satellite pinion (5) is made of a spring whose turns have a round concave profile. Central pinions (4) and (7) are made of springs the turns of which have round convex profile and which are welded to define a single structure. The number of teeth of all pinions differ from these of adjacent pinions, and from their left and right sections by the unit.

EFFECT: expanded functional capabilities.

8 cl, 3 dwg

FIELD: instrument industry.

SUBSTANCE: electric drive comprises first and second electric motors, planet gearings, and differential. Stators (5) and (6) of the electric motors are secured to housing (2) of the electric drive. Shaft (7) of rotor (3) of the first electric motor is mounted on base (1) and is connected with central pinion (16) of the differential through a clutch. Shaft (10) of rotor (4) of the second electric motor bears on shaft (7) of rotor (3) and is connected with the hollow central pinion (17) of the differential through a clutch. Central pinion (16) is mounted in the space of central pinion (17) and engages satellites (19). Satellites (19) engage satellites (21) in pair. Central pinion (16) is interposed between two spherical bearings (22) and (23). Carriers (20), (27), and (30) of the differential and first and second planet gearings are made in block with central pinions (25), (29), and (33) of the first, second, and third planet gearings, respectively. Satellites (26) and (32) engage common gearing wheel (34) which is secured to housing (2). Carrier (37) of the planet gearing is made in block with output shaft (40). First (42), second (43), and third (44) supports are interposed between central pinions (25), (29), and (33) and carriers (27), (30), and (37), respectively.

EFFECT: simplified manufacturing and assembling of the electric drive.

cl, dwg

FIELD: mechanical engineering.

SUBSTANCE: reduction gear comprises housing (1), teeth-rollers freely mounted in the recesses of the housing, driving shaft with eccentrics (9), driven flange, and satellites with teeth-rollers (15) freely mounted in the recesses. Teeth-rollers (15) engage teeth-rollers (14). The satellites transmit torque to the driven flange through pins (12). Teeth-rollers (15) of satellites and teeth-rollers (14) of housing (1) cooperate with each other through intermediate set of rollers (16).

EFFECT: enhanced efficiency.

1 cl, 3 dwg

FIELD: mechanical engineering.

SUBSTANCE: planetary-spool reducer has turning case, motionless flange, second flange, drive shaft with eccentrics disposed uniformly around it, satellites with epicycloidal teeth, roller teeth mounted freely inside internal grooves of turning case. Drive shaft has axis of rotation shifted relatively turning case. Second flange is rigidly tied with first flange by bridges crossing windows of satellites. Drive shaft is mounted in roller supports of flanges which supports are disposed eccentrically.

EFFECT: improved efficiency of reducer.

3 cl, 6 dwg

FIELD: mechanical engineering.

SUBSTANCE: planet high-power reduction gear comprises housing (1), low-speed shaft made in block with carrier (5), satellites, solar wheel (14), and floating central wheel (2) that is composed of two rims whose teeth are directed oppositely. Solar wheel (14) is secured to driving wheel (13). Housing (1) of the reduction gear is made in block with the common intermediate link provided with inner teeth for receiving the floating central wheel (2) having outer teeth (gearing compensating clutch). The outer diameter of carrier (5) is provided with two end pins for rolling bearings to engage carrier (5) with low-speed shaft through them. The carrier is provided with the central setting opening for receiving driving shaft with solar wheel (14) mounted on the rolling bearings and coaxially-radial setting single-sided openings for receiving satellite gearing compensating clutches (8) mounted on the rolling bearings. Carrier (5) from the side of driving shaft (13) has bearing radially face flange (15) which connects driving shaft (13) and axles with the satellite gearing compensating clutches (8).

EFFECT: enhanced reliability and reduced metal consumption.

3 dwg

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