CN211231449U - Large-torque planetary reducer - Google Patents
Large-torque planetary reducer Download PDFInfo
- Publication number
- CN211231449U CN211231449U CN201921737569.0U CN201921737569U CN211231449U CN 211231449 U CN211231449 U CN 211231449U CN 201921737569 U CN201921737569 U CN 201921737569U CN 211231449 U CN211231449 U CN 211231449U
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- Prior art keywords
- output shaft
- planet
- planetary
- shaft
- speed reducer
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of the speed reducer and specifically relates to a big moment of torsion planetary reducer, including the speed reducer casing, still include planetary reduction mechanism, input sun axle, output shaft, the output shaft passes through the spline cooperation to be installed planetary reduction mechanism is last, and first deep groove ball bearing, second deep groove ball bearing are installed at output shaft right-hand member interval and are used for realizing being in the setting the output shaft is outlying the support of speed reducer casing, a sealed dish is fixed through the first high-strength bolt of a plurality of speed reducer casing right-hand member cup jointed one on the output shaft with sealed dish inside wall matched with skeleton oil blanket, the left end of input sun axle through a sun axle bearing with the motor connection pad is realized supporting the cooperation. The reducer increases the contact area of the tooth surfaces among the sun gear, the planet gear and the outer gear ring, is more suitable for transmitting larger torque, reduces the abrasion among the tooth surfaces, and prolongs the service life of the rotary reducer.
Description
Technical Field
The utility model belongs to the technical field of the speed reducer and specifically relates to a big moment of torsion planetary reducer.
Background
The rotary speed reducer consists of a hydraulic motor and a speed reducing mechanism, the rotation speed of the hydraulic motor is reduced through the planetary speed reducing mechanism, the output torque of the hydraulic motor is improved, and the rotary speed reducer is an ideal driving device of engineering machinery and can adapt to abnormal and severe working environments. The brake has the characteristics of real-time braking, small volume, compact structure and the like, and is easy to install and maintain.
The existing rotary speed reducer adopts a structure that a hydraulic motor is connected with a worm and gear speed reducer, a worm and gear speed reducer unit mainly comprises a worm and a worm, the shock resistance is poor, large-torque braking cannot be effectively realized, the shock resistance effect of a working platform of the rotary speed reducer is unsatisfactory, the installation is complicated, the damage is easy, the universality is poor, and the transmission efficiency is not high enough.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a to current worm gear speed reducer's impact resistance poor, can't realize big moment of torsion braking and install inconveniently, specially provide a big moment of torsion planetary reducer, the technical scheme who adopts is: a large-torque planetary reducer comprises a reducer shell, and further comprises a planetary reducer, an input solar shaft and an output shaft, wherein the output shaft is installed on the planetary reducer through spline fit, first deep groove ball bearings and second deep groove ball bearings are installed at intervals at the right end of the output shaft and used for supporting the reducer shell arranged on the periphery of the output shaft, a sealing disc is fixed at the right end of the reducer shell through a plurality of first high-strength bolts, a skeleton oil seal matched with the inner side wall of the sealing disc is sleeved on the output shaft, a shaft head end of the output shaft is provided with a connecting pin hole used for realizing final power output, the left end of the reducer shell is abutted and fixed to the outer end of the planetary reducer and the end of a motor connecting disc through a plurality of second high-strength bolts, the left end of the input solar shaft is supported and matched with the motor connecting disc through a solar shaft bearing, the left end of the input sun shaft is internally provided with rectangular spline teeth connected with an output shaft of a hydraulic motor used for power input, and the right end of the input sun shaft is in central matching transmission with the planetary speed reducing mechanism.
Preferably, the planetary reduction mechanism comprises a planet carrier, a reduction gear ring, planetary gears, planetary pins and planetary bearings, wherein the planet carrier is matched with the output shaft through splines, the planetary bearings are respectively arranged on the outer side walls of the planetary pins which are integrally formed with the planet carrier and are uniformly distributed along the circumference of the planet carrier at intervals, the planetary gears are rotatably arranged on the planetary pins of the planet carrier through the planetary bearings at the corresponding positions of the planetary gears, the outer sides of the planetary gears are meshed with the reduction gear ring, and the inner sides of the planetary gears are meshed with the sun gear at the left end part of the input sun shaft.
Preferably, a stop ring is fixedly mounted on the output shaft on the right side of the planet carrier, and a shaft retainer ring is fixedly mounted on the output shaft on the right side of the planet carrier.
Preferably, a welding mounting disc fixedly connected with the outer end face of the planetary reduction mechanism through a plurality of third high-strength bolts is sleeved on the outer side wall of the inner end of the motor connecting disc.
The beneficial effects of the utility model are embodied in: the reducer increases the contact area of the tooth surfaces among the sun gear, the planet gear and the outer gear ring, is more suitable for transmitting larger torque, reduces the abrasion among the tooth surfaces, prolongs the service life of the rotary reducer, improves the meshing area among the gears, and has small noise, small abrasion and prolonged service life of the reducer; the power output of the engineering machinery can be better adapted, the rotating shaft is prevented from being broken, and the power output device can be adapted to an abnormally severe working environment; the brake has the characteristics of real-time braking, small volume, compact structure and the like, and is easy to install and maintain.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or components are generally identified by like reference numerals. In the drawings, elements or components are not necessarily drawn to scale.
Fig. 1 is a schematic view of the internal connection structure of the present invention.
Fig. 2 is a schematic view of the planetary speed reduction structure of the present invention.
In the figure, 1, output shaft; 2. sealing the disc; 3. framework oil seal; 4. a speed reducer housing; 5. a first deep groove ball bearing; 6. a second deep groove ball bearing; 7. a snap ring; 8. a planet carrier; 9. a retainer ring for a shaft; 10. A first high-strength bolt; 11. a planetary bearing; 12. a reduction gear ring; 13. a planetary gear; 14. a second high-strength bolt; 15. a motor connecting disc; 16. a planet pin shaft clamp; 17. a sun shaft bearing; 18. a sun shaft is input; 19. welding the mounting disc; 20. a third high-strength bolt; 21. connecting pin holes; 22. rectangular spline teeth; 23. a planet pin shaft; 24. a sun gear.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-2, a large-torque planetary reducer comprises a reducer housing 4, and further comprises a planetary reducer, an input sun shaft 18, and an output shaft 1, wherein the output shaft 1 is mounted on the planetary reducer through spline fitting, first deep groove ball bearings 5 and second deep groove ball bearings 6 are mounted at intervals at the right end of the output shaft 1 and used for supporting the reducer housing 4 arranged at the periphery of the output shaft 1, a sealing disc 2 is fixed at the right end of the reducer housing 4 through a plurality of first high-strength bolts 10, a skeleton oil seal 3 matched with the inner side wall of the sealing disc 2 is sleeved on the output shaft 1, a connecting pin hole 21 used for realizing final power output is arranged at the shaft head end of the output shaft 1, and the outer end, the inner side wall of the planetary reducer housing 4 are connected through a plurality of second high-strength, The end part of a motor connecting disc 15 is tightly abutted and fixed, the left end of the input solar shaft 18 is in supporting fit with the motor connecting disc 15 through a solar shaft bearing 17, rectangular spline teeth 22 connected with a hydraulic motor output shaft 1 used for power input are arranged in the left end of the input solar shaft 18, and the right end of the input solar shaft 18 is in central fit transmission with the planetary reduction mechanism.
Preferably, the planetary reduction mechanism includes a planet carrier 8, a reduction ring gear 12, planet gears 13, planet pins 23, and planet bearings 11, the planet carrier 8 is installed in cooperation with the output shaft 1 through splines, the planet bearings 11 are respectively installed on the outer side walls of the planet pins 23 that are integrally formed with the planet carrier 8 and evenly distributed along the circumference of the planet carrier at intervals, each planet gear 13 is installed on each planet pin 23 of the planet carrier 8 through the planet bearing 11 at the corresponding position in a rotating manner, the outer side of each planet gear 13 is used for meshing with the reduction ring gear 12, and the inner side of each planet gear 13 is used for meshing with a sun gear 24 on the left end portion of the input sun shaft 18.
A planet pin shaft clamp 16 is fixedly arranged on the planet pin shaft 23 on the left end surface of each planet bearing 11. The positioning function for the bearing is realized.
The left end of the input sun shaft 18 is supported by a deep groove ball bearing, so that the input sun shaft and the planet carrier 8 are mounted coaxially.
Preferably, a stop ring 7 is fixedly mounted on the output shaft 1 on the right side of the planet carrier 8, and a shaft retainer ring 9 is fixedly mounted on the output shaft 1 on the right side of the planet carrier 8.
Preferably, a welding mounting disc 19 fixedly connected with the outer end face of the planetary reduction mechanism through a plurality of third high-strength bolts 20 is sleeved on the outer side wall of the inner end of the motor connecting disc 15.
The welding installation disc 19 with the welding type is arranged, so that the installation is convenient and fast, and the replacement is convenient.
The working principle is as follows:
each planetary gear 13 revolves around the sun gear 24 on the input sun shaft 18 to drive the planet carrier 8 to rotate, and the transmission ratio of the sun gear 24, the reduction gear ring 12 and each planetary gear 13 is selected by the conventional setting recorded by a technician according to the transmission ratio requirement, so that the revolution speed of the planet carrier 8 is smaller than the rotation speed of the planetary gear 13, and the reduction effect is achieved. Each planet pin 23 has a through hole in the center to allow lubricating oil to fill the entire oil cavity.
The rotation of the hydraulic motor is reduced in rotation speed through the planetary reduction mechanism, the output torque of the hydraulic motor is improved, and the tail end of the output shaft 1 is provided with a gear which is convenient to be connected with other transmission mechanisms. After the deep groove ball bearing is additionally arranged in the output mechanism, the power output of the engineering machinery can be better adapted, the rotating shaft is prevented from being broken, and the deep groove ball bearing can be adapted to an abnormally severe working environment. The brake has the characteristics of real-time braking, small volume, compact structure and the like, and is easy to install and maintain.
When the speed reducer works, the planet gear 13 rotates along with the rotation of the sun gear 24, the tooth surface of the planet gear 13 is matched with the tooth surface of the sun gear 24, the meshing degree of the tooth surface is higher than that of a worm gear type, and the tooth surface contact area among the sun gear 24, the planet gear 13 and the outer gear ring is increased. The rotary speed reducer is more suitable for transmitting larger torque, reduces abrasion among tooth surfaces, and prolongs the service life of the rotary speed reducer.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification; to those skilled in the art, any alternative improvements or changes made to the embodiments of the present invention are all within the scope of the present invention.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (4)
1. The utility model provides a big moment of torsion planetary reducer, includes the speed reducer casing, its characterized in that: the planetary speed reducer is characterized by further comprising a planetary speed reducing mechanism, an input solar shaft and an output shaft, wherein the output shaft is installed on the planetary speed reducing mechanism in a spline fit mode, first deep groove ball bearings and second deep groove ball bearings are installed at the right end of the output shaft at intervals and used for supporting the speed reducer shell arranged on the periphery of the output shaft, a sealing disc is fixed at the right end of the speed reducer shell through a plurality of first high-strength bolts, a framework oil seal matched with the inner side wall of the sealing disc is sleeved on the output shaft, a connecting pin hole used for achieving final power output is formed in the end head end of the output shaft, the outer end of the planetary speed reducing mechanism and the end portion of a motor connecting disc are abutted and fixed at the left end of the speed reducer shell through a plurality of second high-strength bolts, the left end of the input solar shaft is in supporting fit, the left end of the input sun shaft is internally provided with rectangular spline teeth connected with an output shaft of a hydraulic motor used for power input, and the right end of the input sun shaft is in central matching transmission with the planetary speed reducing mechanism.
2. The large-torque planetary reducer according to claim 1, wherein: the planet reducing mechanism comprises a planet carrier, a reducing gear ring, planet gears, planet pin shafts and planet bearings, wherein the planet carrier is matched with the output shaft through splines, the planet bearings are respectively arranged on the outer side walls of the planet pin shafts which are integrally formed with the planet carrier and are uniformly distributed along the circumference of the planet carrier at intervals, the planet gears are rotatably arranged on the planet pin shafts of the planet carrier through the planet bearings at the corresponding positions of the planet gears, the outer sides of the planet gears are used for being meshed with the reducing gear ring, and the inner sides of the planet gears are used for being meshed with a sun gear on the left end part of the input sun shaft.
3. The large-torque planetary reducer according to claim 2, wherein: and the output shaft on the right side of the planet carrier is fixedly provided with a stop ring, and the output shaft on the right side of the planet carrier is fixedly provided with a retaining ring for a shaft.
4. The large-torque planetary reducer according to claim 2, wherein: and a welding mounting disc fixedly connected with the outer end face of the planetary reduction mechanism through a plurality of third high-strength bolts is sleeved on the outer side wall of the inner end of the motor connecting disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921737569.0U CN211231449U (en) | 2019-10-17 | 2019-10-17 | Large-torque planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921737569.0U CN211231449U (en) | 2019-10-17 | 2019-10-17 | Large-torque planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211231449U true CN211231449U (en) | 2020-08-11 |
Family
ID=71936290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921737569.0U Expired - Fee Related CN211231449U (en) | 2019-10-17 | 2019-10-17 | Large-torque planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211231449U (en) |
-
2019
- 2019-10-17 CN CN201921737569.0U patent/CN211231449U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 |