CN111692292A - High-integration two-stage large-torque speed reducer - Google Patents
High-integration two-stage large-torque speed reducer Download PDFInfo
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- CN111692292A CN111692292A CN202010693256.0A CN202010693256A CN111692292A CN 111692292 A CN111692292 A CN 111692292A CN 202010693256 A CN202010693256 A CN 202010693256A CN 111692292 A CN111692292 A CN 111692292A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
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Abstract
The invention discloses a high-integration two-stage large-torque speed reducer, relates to a speed reducer, aims to solve the problems of limited output torque improvement and lack of integration, and adopts the technical scheme that: a high-integration-level two-stage large-torque speed reducer comprises an input shaft, a primary planetary system and a secondary planetary system, wherein the input shaft is provided with an input sun gear, the primary planetary system comprises a primary planetary machine shell, a primary planetary frame and an output sun gear, a primary inner gear ring is fixed on the primary planetary machine shell, and the primary planetary frame is provided with a primary planetary gear; the second-stage planetary system comprises a second-stage planetary casing, a second-stage planet carrier and an output flange, the second-stage planetary casing is provided with a second-stage inner gear ring, the second-stage planet carrier is provided with a second-stage wrapping sleeve, and the second-stage planet carrier is provided with a second-stage planetary gear. The high-integration-level two-stage large-torque speed reducer effectively improves the integration level of a first-stage planetary system and a second-stage planetary system and reduces the volume on the premise of improving the output torque.
Description
Technical Field
The invention relates to a speed reducer, in particular to a high-integration-level two-stage large-torque speed reducer.
Background
The speed reducer is a mechanical transmission instrument and has the functions of reducing the rotating speed and increasing the output torque.
The applicant applies for a planetary gear reducer and an assembling method thereof which are disclosed in Chinese patent with publication number CN109139813A, and the technical points are as follows: the device comprises a shell, an input component and an output component, wherein the shell comprises a front shell and a rear shell, and an inner gear ring is fixedly arranged on the rear shell; the input assembly comprises an input shaft, a sun gear in interference fit with the input shaft, and a first deep groove ball bearing for connecting the input shaft and the front shell; the output assembly comprises an output shaft, a gear carrier fixed with the output shaft and three planetary gears rotationally connected with the gear carrier, a second deep groove ball bearing is arranged between the output shaft and the rear shell, the gear carrier is integrally hollow cylindrical, and three mounting groove positions for accommodating the planetary gears are formed in the circumferential surface of the gear carrier.
The scheme is a single-stage planetary system, the problem of limited torque improvement exists, in order to improve the torque improvement amount in the prior art, two-stage or multi-stage planetary systems are generally adopted for superposition, but the volume is greatly improved due to simple superposition, and the integration is lacked; therefore, a new solution is needed to solve this problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a high-integration-level two-stage large-torque speed reducer, which effectively improves the integration level of a first-stage planetary system and a second-stage planetary system and reduces the volume on the premise of improving the output torque.
The technical purpose of the invention is realized by the following technical scheme: a high-integration-level two-stage high-torque speed reducer comprises an input shaft, a primary planetary system and a secondary planetary system, wherein the input shaft is provided with an input sun gear, the primary planetary system comprises a primary planetary machine shell, a primary planetary frame coaxially and rotatably connected in the primary planetary machine shell and an output sun gear fixed on the primary planetary frame, a primary inner gear ring is fixedly arranged in the primary planetary machine shell, the input shaft is rotatably connected in the primary planetary machine shell, the input sun gear extends into the primary planetary frame, at least three primary planetary gears are rotatably connected in the primary planetary frame, and the primary planetary gears are simultaneously meshed with the input sun gear and the primary inner gear ring; the second grade planetary system includes the second grade planet carrier of being connected in the second grade planet carrier with fixed second grade planet carrier, coaxial rotation of one-level planet carrier to and machine-shaping in the output flange of second grade planet carrier, machine-shaping has the second grade ring gear in the second grade planet carrier, the second grade planet carrier is provided with the second grade and wraps up the cover, the partial clearance of one-level planet carrier stretches into in the second grade wraps up the cover, the output sun gear stretches into in the second grade planet carrier, it is connected with three second grade planetary gear to rotate at least in the second grade planet carrier, the second grade planetary gear meshes with output sun gear and second grade ring gear simultaneously.
By adopting the technical scheme, when the device normally works, the motor drives the input shaft and the input sun gear to synchronously rotate, the input sun gear drives the plurality of primary planet gears to rotate in the rotating process, the plurality of primary planet gears are matched with the primary inner gear ring in the rotating process, the generated and improved torsion drives the primary planet carrier and the output sun gear to rotate, the output sun gear drives the plurality of secondary planet gears to rotate in the rotating process, the plurality of secondary planet gears are matched with the secondary inner gear ring in the rotating process, the generated and improved torsion drives the secondary planet carrier to rotate again, and therefore the output flange coaxially fixed on the secondary planet carrier outputs the torsion force which is improved by two stages of torsion, and compared with a comparison file, the device effectively improves the output torque; it should be noted that the second-stage planet carrier is provided with the second-stage wrapping sleeve and used for accommodating part of the structure of the first-stage planet carrier, and the input shaft is limited in the first-stage planet shell, and by combining the two points, compared with the simple superposition in the prior art, the integration level of the first-stage planet system and the second-stage planet system is effectively improved, the volume is reduced, and it is also noted that the length of the first-stage planet shell is increased by only one half compared with that of a comparison file.
The invention is further configured to: the input shaft is provided with a hoop sleeve which is used for being in sleeve fit with the output shaft of the motor, a plurality of deformation grooves are formed in the hoop sleeve at equal angles, the hoop sleeve is provided with a clamping sleeve, the clamping sleeve is in threaded fit with a mounting bolt, the mounting bolt is screwed into the hoop sleeve, and the clamping sleeve is in threaded fit with a clamping bolt which is screwed into two parts of the clamping sleeve simultaneously.
By adopting the technical scheme, the input shaft is additionally provided with the hoop sleeve and the clamping sleeve, and the installation bolt is utilized to limit the sliding activity of the clamping sleeve along the length direction of the hoop sleeve, so that the assembly stability of the hoop sleeve and the clamping sleeve is ensured; when the output shaft of input shaft and motor need to be connected, screw up the clamp bolt and force two parts that press from both sides the cover to tighten up to by pressing from both sides the cover and forcing the clamp cover to take the deformation groove as the deformation point, tighten up the output shaft that deformation enclasping motor, realize the coaxial coupling of motor output shaft and this application input shaft.
The invention is further configured to: the motor mounting seat is fixed on the first-stage planetary case flange and provided with a central through hole, the jacket is located in the center of the central through hole, an oil filling hole penetrates through one side of the motor mounting seat, and a plug is detachably embedded in the oil filling hole.
By adopting the technical scheme, the primary planet shell provides the motor mounting seat for connecting the shell of the motor, so that the assembly stability of the motor and the motor is improved; the motor mounting seat is provided with a central through hole, so that the motor mounting seat is prevented from influencing the smooth connection of the motor output shaft and the input shaft; the jacket is limited in the central through hole, so that the output end of the motor is in a sealed environment, and the use requirement of a severe environment is met; the oil filler point is add to the motor mount pad to can pour into lubricating oil or sealing oil into in the motor mount pad after unloading the end cap, and then facilitate for the oiling of this application.
The invention is further configured to: the first-stage planetary machine shell is provided with an extension lantern ring, and a first deep groove ball bearing is arranged between the extension lantern ring and the input shaft.
Through adopting above-mentioned technical scheme, the extension lantern ring is add to one-level planet casing, provides a mounting site for the motor mount pad on the one hand, and on the other hand provides a mounting site for installing first deep groove ball bearing, sets up first deep groove ball bearing between extension lantern ring and input shaft to utilize first deep groove ball bearing to reduce the characteristics of frictional force, the frictional resistance that receives when effectively reducing the input shaft and rotating.
The invention is further configured to: an inner gear ring mounting table is arranged in the primary planet shell, and the primary inner gear ring is attached to the end surface of the inner gear ring mounting table and is fixed by a bolt; and a second deep groove ball bearing is arranged between the inner circumferential surface of the inner gear ring mounting table and the primary planet carrier.
By adopting the technical scheme, the inner gear ring mounting table is additionally arranged on the primary planet shell, the first inner gear ring is attached to the end surface of the inner gear ring mounting table and is reinforced by a plurality of bolts, so that the mounting strength of the primary inner gear ring is ensured; and a second deep groove ball bearing is additionally arranged between the inner gear ring mounting table and the primary planet carrier, so that the characteristic of reducing the friction force of the second deep groove ball bearing is utilized, and the friction resistance borne by the primary planet carrier during rotation is effectively reduced.
The invention is further configured to: an oil seal ring is formed on the inner circumferential surface of the primary planet shell in a machining mode, and an input end oil seal ring is arranged between the oil seal ring and the input shaft.
Through adopting above-mentioned technical scheme, one-level planet casing adds the oil blanket ring to reduce its input open-ended size, and the installation input oil blanket circle, thereby ensure the leakproofness of one-level planet casing input.
The invention is further configured to: the one-level planet casing is provided with the embedding circle, the embedding circle embedding is laminated in the inner wall of second grade planet casing, the embedding circle is provided with the annular that holds that is used for holding joint strip.
By adopting the technical scheme, the primary planet shell is additionally provided with the embedded ring to be embedded into the secondary planet shell, so that the assembly strength of the primary planet shell and the secondary planet shell is improved; the embedding ring is additionally provided with the containing ring groove, so that when the use environment with higher sealing requirements is met, the sealing rubber strip can be utilized to improve the sealing performance of the primary planetary machine shell and the secondary planetary machine shell.
The invention is further configured to: cylindrical angle bearings are respectively arranged between the secondary wrapping sleeve and the secondary planet shell and between the output flange and the secondary planet shell; cylindrical angle bearing includes inner circle, outer lane and a plurality of rolling cylinder, the cross-section of inner circle and outer lane is isosceles right triangle, and hypotenuse between them is relative, and is a plurality of rolling cylindrical periphery is tangent with the hypotenuse of inner circle and outer lane respectively, be provided with spacing bone circle between inner circle and the outer lane, spacing bone circle has a plurality of cylinders that are the equal angle and arrange and holds logical groove, rolling cylinder rolls to imbed and holds logical groove in the cylinder.
By adopting the technical scheme, two cylindrical angle bearings are additionally arranged to limit two ends of the secondary planet carrier, so that the stability and the rotation smoothness of the secondary planet carrier are ensured; the sections of the inner ring and the outer ring are isosceles right triangles, so that the inner ring and the outer ring can be embedded into the right-angle ring at the clamping position, the function of reducing the friction force of the traditional bearing can be realized, the limitation on the motion degree of the second-stage planet carrier in the axial direction can be realized, and the radial impact resistance of the bearing is effectively improved; the cross sections of the inner ring and the outer ring are designed to be isosceles right triangles, and compared with the traditional rolling cone bearing, the cross section width of a cylindrical angle bearing is effectively reduced, so that the occupied amount of an inner cavity of a secondary planet shell is reduced, the secondary planet shell can be in butt joint with a primary planet shell, the size of the primary planet shell does not need to be specially increased, and the integration level of the planetary gear set is further improved; it should also be noted that the cylindrical accommodating through groove of the limiting bone ring is used for accommodating the rolling cylinder, so that the ordering of the plurality of rolling cylinders is ensured.
The invention is further configured to: an output end oil seal ring is fixedly clamped at the output end of the secondary planetary casing, and the inner circumferential surface of the output end oil seal ring is rotationally attached to the output flange.
Through adopting above-mentioned technical scheme, utilize output oil seal circle to fill the clearance of output flange and second grade planet casing to ensure the leakproofness of second grade planet casing output.
The invention is further configured to: and an outer ring flange is formed on the outer wall surface of the secondary planet shell in a machining mode.
Through adopting above-mentioned technical scheme, utilize the installation that the assembly outer ring flange realized this application to improve the installation convenience of this application.
In conclusion, the invention has the following beneficial effects: the torsion force after two-stage torque force lifting is output, and the output torque is effectively improved; the second-stage planet carrier is provided with a second-stage wrapping sleeve and used for accommodating part of the structure of the first-stage planet carrier, and the input shaft is limited in the first-stage planet shell; the installation bolt is used for limiting the sliding degree of the clamping sleeve along the length direction of the hoop sleeve, so that the assembly stability of the hoop sleeve and the clamping sleeve is ensured; the clamping sleeve forces the clamping sleeve to take the deformation groove as a deformation point, and the deformation is tightened to tightly hold the output shaft of the motor, so that the connection strength of the output shaft of the motor and the input shaft of the motor is ensured; the primary planet shell is provided with a motor mounting seat and is used for connecting the shell of the motor, so that the assembly stability of the motor and the motor is improved; the jacket is limited in the central through hole, so that the output end of the motor is in a sealed environment, and the use requirement of a severe environment is met; an oil injection hole is additionally formed in the motor mounting seat, so that convenience is brought to oil injection; an extension lantern ring is additionally arranged on the primary planet shell, so that on one hand, an installation part is provided for a motor installation seat, and on the other hand, an installation part is provided for installing a first deep groove ball bearing; the characteristic that the first deep groove ball bearing reduces friction force is utilized, so that the friction resistance borne by the input shaft during rotation is effectively reduced; an inner gear ring mounting table is additionally arranged on the primary planet shell, the first inner gear ring is attached to the end face of the inner gear ring mounting table and is reinforced by a plurality of bolts, and therefore the mounting strength of the primary inner gear ring is ensured; the friction resistance borne by the first-stage planet carrier during rotation is effectively reduced by utilizing the characteristic that the second deep groove ball bearing reduces the friction force; an oil seal ring is additionally arranged on the primary planet shell, so that the size of an opening of an input end of the primary planet shell is reduced, and an input end oil seal ring is arranged, so that the sealing property of the input end of the primary planet shell is ensured; the primary planet shell is additionally provided with the embedded ring and is embedded into the secondary planet shell, so that the assembly strength of the primary planet shell and the secondary planet shell is improved; two cylindrical angle bearings are additionally arranged to limit two ends of the secondary planet carrier, so that the stability and the rotation smoothness of the secondary planet carrier are ensured; the output end oil seal ring is used for filling the gap between the output flange and the secondary planetary casing, so that the sealing property of the output end of the secondary planetary casing is ensured; the installation of this application is realized to the utilization assembly outer loop flange to improve the installation convenience of this application.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is an exploded view of the present invention;
FIG. 4 is a schematic view of the output shaft of the present invention;
FIG. 5 is a schematic structural diagram of a primary planetary system of the present invention;
FIG. 6 is a schematic structural view of a cylindrical angle bearing of the present invention;
fig. 7 is a partial cross-sectional view of the cylindrical angle bearing of the present invention.
Description of the drawings: 1. an input shaft; 11. inputting a sun gear; 111. a hoop sleeve; 12. a deformation groove; 13. a jacket; 14. installing a bolt; 15. clamping the bolt; 16. a motor mounting seat; 17. a central through hole; 18. an oil filler hole; 19. a plug; 21. a primary planet housing; 22. a primary planet carrier; 23. an output sun gear; 24. a primary annular gear; 25. a primary planetary gear; 26. an extension collar; 27. a first deep groove ball bearing; 28. an inner gear ring mounting table; 29. a second deep groove ball bearing; 30. an oil seal ring; 31. an input end oil seal ring; 32. embedding a ring; 33. a receiving ring groove; 41. a secondary planet housing; 42. a secondary planet carrier; 43. an output flange; 44. a secondary annular gear; 45. a secondary wrapping sleeve; 46. a secondary planetary gear; 47. a cylindrical angle bearing; 48. an inner ring; 49. an outer ring; 50. a limiting bone ring; 51. rolling the cylinder; 52. an accommodating through groove; 53. an output end oil seal ring; 54. and assembling an outer ring flange.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A high-integration-level two-stage large-torque speed reducer, as shown in fig. 1, fig. 2 and fig. 3, comprising an input shaft 1, a first-stage planetary system and a second-stage planetary system, wherein the input shaft 1 is fixed with an input sun gear 11 in an interference insertion manner, the first-stage planetary system comprises a first-stage planetary casing 21, a first-stage planetary carrier 22 coaxially and rotatably connected in the first-stage planetary casing 21, and an output sun gear 23 fixedly fixed in the first-stage planetary carrier 22 in an interference insertion manner, a first-stage ring gear 24 is fixed on an inner flange of the first-stage planetary casing 21, the input shaft 1 is rotatably connected in the first-stage planetary casing 21, the input sun gear 11 extends into the first-stage planetary carrier 22, the first-stage planetary carrier 22 is connected with three first-; the secondary planetary system comprises a secondary planetary machine shell 41 fixed with a flange of the primary planetary machine shell 21, a secondary planet carrier 42 coaxially and rotatably connected in the secondary planetary machine shell 41 and an output flange 43 formed in the secondary planet carrier 42 in a machining mode, a secondary annular gear 44 is formed in the secondary planetary machine shell 41 in a machining mode, a secondary wrapping sleeve 45 is formed in the secondary planet carrier 42 in a machining mode, part of the gap of the primary planet carrier 22 extends into the secondary wrapping sleeve 45, the output sun gear 23 extends into the secondary planet carrier 42, three secondary planetary gears 46 are rotatably connected in the secondary planet carrier 42, and the secondary planetary gears 46 are simultaneously meshed with the output sun gear 23 and the secondary annular gear 44.
When the invention works normally, the motor drives the input shaft 1 and the input sun gear 11 to rotate synchronously, the input sun gear 11 drives a plurality of primary planet gears 25 to rotate in the rotating process, the plurality of primary planet gears 25 are matched with the primary inner gear ring 24 in the rotating process, the generated and improved torsion drives the primary planet carrier 22 and the output sun gear 23 to rotate, the output sun gear 23 drives a plurality of secondary planet gears 46 to rotate in the rotating process, the plurality of secondary planet gears 46 are matched with the secondary inner gear ring 44 in the rotating process, the generated and improved torsion drives the secondary planet carrier 42 to rotate again, so that the output flange 43 coaxially fixed on the secondary planet carrier 42 outputs the torsion force after being lifted by two stages, and compared with a comparison file, the output torque is effectively improved; it should be noted that the second-stage planetary carrier 42 is provided with the second-stage wrapping sleeve 45 for accommodating the output end structure of the first-stage planetary carrier 22 and limiting the input shaft 1 in the first-stage planetary housing 21, and by combining the two points, compared with simple superposition in the prior art, the integration level of the first-stage planetary system and the second-stage planetary system is effectively improved, so that the volume is reduced, and it should be noted that the length of the present application is increased by only one half of the length of the first-stage planetary housing 21 compared with that of a comparison document.
The input shaft 1 of the present application is fixed with the output shaft of the motor in the following way, as shown in fig. 4, the input shaft 1 is formed with an anchor ear cover 111 for being in sleeve fit with the output shaft of the motor, the anchor ear cover 111 is provided with a plurality of deformation slots 12 at equal angles, the anchor ear cover 111 is sleeved with a jacket 13, the jacket 13 is in threaded fit with a mounting bolt 14, the mounting bolt 14 is screwed into the anchor ear cover 111, so as to utilize the mounting bolt 14 to limit the sliding mobility of the jacket 13 along the length direction of the anchor ear cover 111, ensure the assembly stability of the anchor ear cover 111 and the jacket 13, the jacket 13 is in threaded fit with a clamping bolt 15 simultaneously screwed into two parts of the jacket 13, when the input shaft 1 and the output shaft of the motor need to be connected, the clamping bolt 15 is screwed to force the two parts of the jacket 13 to tighten, so that the anchor ear cover 111 is forced by the jacket 13 to take the deformation slot 12 as a, realize motor output shaft and this application input shaft 1's coaxial fixed.
In order to facilitate assembly of the present application and the motor, as shown in fig. 3, a motor mounting seat 16 is flange-fixed to the primary planetary housing 21, so that the motor mounting seat 16 provides a mounting position for a motor housing, thereby improving mounting convenience of the motor; the motor mounting seat 16 is provided with a central through hole 17, so that the motor mounting seat 16 is prevented from influencing the smooth connection of the motor output shaft and the input shaft 1; the jacket 13 is positioned in the center of the central through hole 17, so that the output end of the motor is in a sealed environment, and the use requirement of a severe environment is met; one side of motor mount pad 16 runs through and has seted up oil filler point 18, and oil filler point 18 can be dismantled the gomphosis and have end cap 19 to can pour into lubricating oil or sealing oil into in motor mount pad 16 after unloading end cap 19, and then facilitate for this application oiling.
The input shaft 1 is rotatably connected to the first-stage planetary housing 21 in the following manner, as shown in fig. 2 and 4, an extension lantern ring 26 is formed on the first-stage planetary housing 21, a first deep groove ball bearing 27 is arranged between the extension lantern ring 26 and the input shaft 1, an outer ring of the first deep groove ball bearing 27 is fixedly clamped with the extension lantern ring 26, and an inner ring of the first deep groove ball bearing 27 is fixedly clamped with the input shaft 1, so that the frictional resistance received by the input shaft 1 during rotation is effectively reduced by utilizing the characteristic that the first deep groove ball bearing 27 reduces the frictional force.
The primary inner gear ring 24 is mounted in the primary planetary housing 21 in such a way that, as shown in fig. 2 and 5, an inner gear ring mounting table 28 is formed in the primary planetary housing 21 in a machining mode, and the primary inner gear ring 24 is attached to the end face of the inner gear ring mounting table 28 and fixed by bolts, so that the mounting strength of the primary inner gear ring 24 is ensured; a second deep groove ball bearing 29 is arranged between the inner circumferential surface of the inner gear ring mounting table 28 and the primary planet carrier 22, the outer ring of the second deep groove ball bearing 29 is fixedly clamped with the inner gear ring mounting table 28, and the inner ring of the second deep groove ball bearing 29 is fixedly clamped with the primary planet carrier 22, so that the characteristic that the second deep groove ball bearing 29 reduces the friction force is utilized, and the friction resistance borne by the primary planet carrier 22 during rotation is effectively reduced.
In order to improve the sealing performance of the input end of the present application, as shown in fig. 2, an oil seal ring 30 is formed on the inner circumferential surface of the primary planetary housing 21, so as to reduce the size of the input end opening thereof, and an input end oil seal ring 31 is provided between the oil seal ring 30 and the input shaft 1, so as to ensure the sealing performance of the input end of the present application.
In order to improve the assembly strength of the primary planetary housing 21 and the secondary planetary housing 41, as shown in fig. 2 and 4, the primary planetary housing 21 is formed with an embedded ring 32, and the embedded ring 32 is embedded in and attached to the inner wall of the secondary planetary housing 41, so that the assembly strength of the primary planetary housing 21 and the secondary planetary housing 41 is improved; embedding circle 32 machine-shaping has the annular groove 33 that holds that is used for holding joint strip to this application can utilize and hold the annular groove fixed joint strip when applying to the higher service environment of sealed requirement, and then improves the leakproofness of one-level planet casing 21 and second grade planet casing 41.
The secondary planet carrier 42 is rotatably connected to the secondary planet carrier 41 in such a way that, as shown in fig. 2, cylindrical angle bearings 47 are respectively arranged between the secondary wrapping sleeve 45 and the secondary planet carrier 41 and between the output flange 43 and the secondary planet carrier 41, so that two ends of the secondary planet carrier 42 are limited by the two cylindrical angle bearings 47, and stability and rotational smoothness of the secondary planet carrier 42 are ensured.
The specific structure of the cylindrical angle bearing 47 is as follows, as shown in fig. 6 and 7, the cylindrical angle bearing 47 includes an inner ring 48, an outer ring 49 and a plurality of rolling cylinders 51, the cross sections of the inner ring 48 and the outer ring 49 are isosceles right triangles, the oblique sides of the inner ring 48 and the outer ring 49 are opposite, the circumferential surfaces of the plurality of rolling cylinders 51 are respectively tangent to the oblique sides of the inner ring 48 and the outer ring 49, a limiting rib ring 50 is arranged between the inner ring 48 and the outer ring 49, the limiting rib ring 50 is provided with a plurality of cylindrical accommodating through grooves 52 which are arranged at equal angles, and the rolling cylinders 51 are embedded in the cylindrical accommodating.
The cylindrical angle bearing 47 has the following technical effects that the sections of the inner ring 48 and the outer ring 49 are limited to be isosceles right triangles, so that the inner ring 48 and the outer ring 49 can be embedded into the right-angle rings at the clamping positions, the function of reducing the friction force of the traditional bearing can be realized, the limitation on the mobility of the second-stage planet carrier 42 in the axial direction can be realized, and the radial impact resistance of the bearing is effectively improved; it should be noted that, the sections of the inner ring 48 and the outer ring 49 are designed to be isosceles right triangles, and compared with the traditional rolling cone bearing, the section width of the cylindrical angle bearing 47 is effectively reduced, so that the occupied amount of the inner cavity of the secondary planetary housing 41 is reduced, further the secondary planetary housing 41 can be directly butted with the primary planetary housing 21, the size of the primary planetary housing 21 does not need to be specially increased, and the integration level of the present application is further improved; it should also be noted that the cylindrical receiving through-slot 52 of the limiting bone ring 50 is used for receiving the rolling cylinder 51, so as to ensure the ordering of the plurality of rolling cylinders 51
In order to improve the sealing performance of the output end of the present application, as shown in fig. 2, an output end oil seal ring 53 is fixed to the output end of the secondary planetary housing 41 in a clamping manner, and an inner circumferential surface of the output end oil seal ring 53 is rotationally attached to the output flange 43, so that the output flange 43 and the secondary planetary housing 41 are filled with the output end oil seal ring 53, and the sealing performance of the output end of the secondary planetary housing 41 is ensured.
In order to facilitate installation of the present application, as shown in fig. 1, an outer wall surface of the secondary planetary housing 41 is formed with an outer ring flange 54, so that the installation of the present application can be realized by using the outer ring flange 54, and the installation convenience of the present application is further improved.
The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a big moment of torsion speed reducer of high integration two-stage, includes input shaft (1), one-level planetary system and second grade planetary system, input shaft (1) is provided with input sun gear (11), its characterized in that:
the primary planetary system comprises a primary planetary machine shell (21), a primary planetary frame (22) coaxially connected in the primary planetary machine shell (21) in a rotating mode, and an output sun gear (23) fixed on the primary planetary frame (22), wherein a primary annular gear (24) is fixed in the primary planetary machine shell (21), the input shaft (1) is connected in the primary planetary machine shell (21) in a rotating mode, the input sun gear (11) extends into the primary planetary frame (22), at least three primary planetary gears (25) are connected in the primary planetary frame (22) in a rotating mode, and the primary planetary gears (25) are meshed with the input sun gear (11) and the primary annular gear (24) at the same time;
the second grade planetary system includes second grade planet carrier (42) of being connected in second grade planet carrier (41) with fixed second grade planet shell (21), coaxial rotation to and machine-shaping in output flange (43) of second grade planet carrier (42), machine-shaping has second grade ring gear (44) in second grade planet shell (41), second grade planet carrier (42) are provided with second grade wrapping cover (45), one-level planet carrier (22) part clearance stretches into in second grade wrapping cover (45), output sun gear (23) stretch into in second grade planet carrier (42), rotate at least in second grade planet carrier (42) and be connected with three second grade planetary gear (46), second grade planetary gear (46) mesh with output sun gear (23) and second grade ring gear (44) simultaneously.
2. The high-integration two-stage large-torque speed reducer according to claim 1, wherein: the input shaft (1) is provided with a hoop sleeve (111) which is used for being in sleeve fit with an output shaft of a motor, a plurality of deformation grooves (12) are formed in the hoop sleeve (111) at equal angles, a clamping sleeve (13) is sleeved on the hoop sleeve (111), a mounting bolt (14) is arranged in the clamping sleeve (13) in a threaded fit mode, the mounting bolt (14) is screwed into the hoop sleeve (111), and a clamping bolt (15) which is screwed into two parts of the clamping sleeve (13) in a threaded fit mode is arranged in the clamping sleeve (13).
3. The high-integration two-stage large-torque speed reducer according to claim 2, wherein: the motor mounting seat (16) is fixed on the first-stage planetary machine shell (21) through a flange, the motor mounting seat (16) is provided with a central through hole (17), the jacket (13) is located at the center of the central through hole (17), one side of the motor mounting seat (16) penetrates through and is provided with an oil filling hole (18), and the oil filling hole (18) is detachably embedded with a plug (19).
4. The high-integration two-stage large-torque speed reducer according to claim 1, wherein: the primary planetary machine shell (21) is provided with an extension lantern ring (26), and a first deep groove ball bearing (27) is arranged between the extension lantern ring (26) and the input shaft (1).
5. The high-integration two-stage large-torque speed reducer according to claim 1, wherein: an inner gear ring mounting table (28) is arranged in the primary planetary machine shell (21), and the primary inner gear ring (24) is attached to the end face of the inner gear ring mounting table (28) and is fixed by bolts; and a second deep groove ball bearing (29) is arranged between the inner circumferential surface of the inner gear ring mounting table (28) and the primary planet carrier (22).
6. The high-integration two-stage large-torque speed reducer according to claim 1, wherein: an oil seal ring (30) is formed on the inner circumferential surface of the primary planet shell (21) in a machining mode, and an input end oil seal ring (31) is arranged between the oil seal ring (30) and the input shaft (1).
7. The high-integration two-stage large-torque speed reducer according to claim 1, wherein: one-level planet casing (21) are provided with embedding circle (32), embedding circle (32) embedding and laminating in the inner wall of second grade planet casing (41), embedding circle (32) are provided with and are used for holding joint strip's holding ring groove (33).
8. The high-integration two-stage large-torque speed reducer according to claim 1, wherein: cylindrical angle bearings (47) are respectively arranged between the secondary wrapping sleeve (45) and the secondary planetary case (41) and between the output flange (43) and the secondary planetary case (41); cylindrical angle bearing (47) include inner circle (48), outer lane (49) and a plurality of rolling cylinder (51), the cross-section of inner circle (48) and outer lane (49) is isosceles right triangle, and the hypotenuse between them is relative, and is a plurality of the periphery of rolling cylinder (51) is tangent with the hypotenuse of inner circle (48) and outer lane (49) respectively, be provided with spacing skeleton circle (50) between inner circle (48) and outer lane (49), spacing skeleton circle (50) have a plurality of cylinders that are the angular arrangement such as to hold logical groove (52), rolling cylinder (51) roll embedding holds logical groove (52) in the cylinder.
9. The high-integration two-stage large-torque speed reducer according to claim 1, wherein: an output end oil seal ring (53) is fixedly clamped at the output end of the secondary planetary machine shell (41), and the inner circumferential surface of the output end oil seal ring (53) is rotationally attached to the output flange (43).
10. The high-integration two-stage large-torque speed reducer according to claim 1, wherein: and an outer ring assembling flange (54) is formed on the outer wall surface of the secondary planet shell (41) in a machining mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693256.0A CN111692292A (en) | 2020-07-17 | 2020-07-17 | High-integration two-stage large-torque speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693256.0A CN111692292A (en) | 2020-07-17 | 2020-07-17 | High-integration two-stage large-torque speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111692292A true CN111692292A (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010693256.0A Pending CN111692292A (en) | 2020-07-17 | 2020-07-17 | High-integration two-stage large-torque speed reducer |
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| Country | Link |
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| CN (1) | CN111692292A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116146704A (en) * | 2023-02-22 | 2023-05-23 | 健翌精密设备江苏有限公司 | Main shaft transmission device with large torque |
| CN117231693A (en) * | 2023-11-15 | 2023-12-15 | 江苏万基传动科技有限公司 | Large-torque output star wheel speed reducer |
-
2020
- 2020-07-17 CN CN202010693256.0A patent/CN111692292A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116146704A (en) * | 2023-02-22 | 2023-05-23 | 健翌精密设备江苏有限公司 | Main shaft transmission device with large torque |
| CN116146704B (en) * | 2023-02-22 | 2024-05-28 | 健翌精密设备江苏有限公司 | Main shaft transmission device with large torque |
| CN117231693A (en) * | 2023-11-15 | 2023-12-15 | 江苏万基传动科技有限公司 | Large-torque output star wheel speed reducer |
| CN117231693B (en) * | 2023-11-15 | 2024-02-23 | 江苏万基传动科技有限公司 | Large-torque output star wheel speed reducer |
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