CN115163755A - Speed increasing device with large speed increasing ratio - Google Patents

Speed increasing device with large speed increasing ratio Download PDF

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Publication number
CN115163755A
CN115163755A CN202210909212.6A CN202210909212A CN115163755A CN 115163755 A CN115163755 A CN 115163755A CN 202210909212 A CN202210909212 A CN 202210909212A CN 115163755 A CN115163755 A CN 115163755A
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China
Prior art keywords
gear
output
speed
shaft
transmission
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CN202210909212.6A
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Chinese (zh)
Inventor
李聚波
杨建军
陈淞
王斌
仲志丹
许爱军
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Henan University of Science and Technology
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Henan University of Science and Technology
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Application filed by Henan University of Science and Technology filed Critical Henan University of Science and Technology
Priority to CN202210909212.6A priority Critical patent/CN115163755A/en
Publication of CN115163755A publication Critical patent/CN115163755A/en
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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
    • 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
    • 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
    • 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

Abstract

The invention relates to the technical field of gear transmission devices for transmitting rotary motion, in particular to a speed increasing device with a large speed increasing ratio. The power transmission device comprises a box body, wherein an input shaft and an output shaft are rotatably assembled in the box body, the input shaft and the output shaft are in transmission connection through a planetary gear train, the input shaft is fixedly connected with a planetary carrier of the planetary gear train, power is transmitted to the planetary carrier of the planetary gear train through the input shaft and then is divided into two paths to be transmitted to a gear ring and a sun gear of the planetary gear train, the gear ring and the sun gear are in transmission connection with a first output gear and a second output gear which are arranged on the output shaft in a rotation-stop mode respectively, the power is converged to the output shaft through the gear ring and the sun gear respectively, the large-speed-increase-ratio speed-increasing output of the output shaft is realized, and the large-speed-increase-ratio speed-increasing output that is, the power is transmitted to the gear ring and the sun gear through the output shaft in two paths respectively and then is converged to the output shaft is realized.

Description

Speed increasing device with large speed increasing ratio
Technical Field
The invention relates to the technical field of gear transmission devices for transmitting rotary motion, in particular to a speed increasing device with a large speed increasing ratio.
Background
The speed increasing device is a device for increasing the input rotating speed of low rotating speed to be suitable for the working rotating speed of a working machine, and is widely applied in the industrial field. Particularly, in the field of power generation, a speed increasing device has a special requirement, sometimes, large speed increasing ratio transmission is needed, but the limitation of assembly space or quality exists, in the prior art, the speed increasing device is generally a parallel shaft gear speed increasing device or a planetary gear speed increasing device, but the reduction ratio is not large and is generally below 10, on the basis, in order to realize large speed increasing ratio speed increasing, multi-stage gear transmission is needed, so that the whole structure of the speed increasing device is complex, the occupied space is large, the quality is large, and the adoption of multi-stage gear transmission can cause the failure rate of the device to increase, which is not beneficial to practical application.
Disclosure of Invention
The invention aims to provide a speed increasing device with a large speed increasing ratio, and aims to solve the problem that the structure of the speed increasing device with the large speed increasing ratio in the prior art is complex.
In order to achieve the purpose, the technical scheme of the speed increasing device with the large speed increasing ratio is as follows: a large-speed-increasing-ratio speed increasing device comprises a box body, wherein an input shaft and an output shaft are assembled in the box body in a rotating mode, the input shaft is provided with a power input end exposed out of the box body, the output shaft is provided with a power output end exposed out of the box body, the input shaft and the output shaft are in transmission connection through a planetary gear train, a planetary carrier of the planetary gear train and the input shaft are circumferentially stopped rotating and transmit power of the input shaft to a gear ring and a sun gear, the gear ring and the sun gear of the planetary gear train are in transmission connection with the output shaft, and the gear ring and the sun gear are in reverse rotation.
Has the advantages that: the large-speed-increase-ratio speed increasing device can transmit the power of the input shaft to the gear ring and the sun gear of the planetary gear train through the planet carrier by the design, the gear ring and the sun gear of the planetary gear train are in transmission connection with the output shaft, on one hand, the freedom degrees of the gear ring and the sun gear are restricted to the output shaft, on the other hand, the gear ring and the sun gear can serve as double power output to transmit the power to the output shaft, and the large-speed-increase-ratio output can be realized by adjusting the transmission ratio of the gear ring, the sun gear and the output shaft. In summary, the large-speed-increasing-ratio speed increasing device can solve the problems of complex structure, large volume and large mass of the existing speed increasing device for realizing large-speed-increasing-ratio speed increasing.
As a preferred technical scheme: the output shaft is equipped with a first output gear and a second output gear in a rotation stopping way, a gear ring of the planetary gear train is provided with a first transmission gear and is in meshing transmission with the first output gear through the first transmission gear, and a wheel shaft of a sun gear of the planetary gear train is provided with a second transmission gear and is in meshing transmission with the second output gear through the second transmission gear.
Has the advantages that: through the design, on one hand, power can be converged to the output shaft through the two paths of the gear ring and the sun gear, so that large speed-increasing ratio speed-increasing output is realized, and on the other hand, the power transmission path can be reduced by adopting a gear meshing mode to carry out power transmission, so that the whole structure of the device is compact, and the transmission efficiency is high.
Further: the input shaft is perpendicular to the output shaft, the first output gear and the second output gear are both bevel gears, the first transmission gear is a bevel gear and is located on the axial end face of the gear ring, the second transmission gear is a bevel gear and is installed at the end of a wheel shaft of the sun gear in a rotation stopping mode, and the first output gear and the second output gear are respectively arranged on two sides of the axis of the input shaft.
Has the advantages that: the first output gear, the second output gear and the first transmission gear are all designed as bevel gears, so that the arrangement is convenient, the internal structure of the device is more compact, the utilization rate of the internal space is improved, and the volume is reduced; meanwhile, the gear is designed into a bevel gear, so that the input shaft and the output shaft can be vertically arranged, the input and output reversing is realized, on one hand, the vertical arrangement can stagger the power machine at the input shaft and the working machine at the output shaft, the arrangement of an external power machine and the working machine is convenient, on the other hand, on the basis of the staggered arrangement of the external power machine and the working machine by utilizing the vertical arrangement, the internal space structure can be further simplified, the interior is more compact, the space utilization rate is improved, and the integral volume is smaller; meanwhile, the first output gear and the second output gear are arranged on two sides of the axis of the input shaft respectively, so that the axial acting force acting on the output shaft in the operation process of the device can be counteracted to a greater extent, and on the other hand, the two gears are arranged on two sides of the axis of the input shaft respectively, so that the stress of the output shaft is more balanced, the bending moment generated on the output shaft is reduced, and the service life of the output shaft is further prolonged.
Further: the planet carrier and the input shaft are of an integrated structure, one end of a wheel shaft of the sun gear is rotatably assembled with the planet carrier, and the other end of the wheel shaft of the sun gear penetrates through the gear ring and is rotatably supported with the gear ring.
Has the advantages that: the planet carrier and the input shaft are designed into an integral structure, so that on one hand, the assembly is convenient, the assembly efficiency is improved, on the other hand, the power of the input shaft can be more stably transmitted to the planet carrier, and the integral transmission stability of the device is further improved; the one end of the shaft of the sun gear is rotatably assembled with the planet carrier, so that the whole structure is more compact, the stability of the device is improved, the other end of the shaft of the sun gear penetrates through the gear ring and is rotatably supported by the gear ring, the assembly of the shaft and the gear ring can be realized, the stability of the shaft is further improved, the stability of the device is further improved, meanwhile, the shaft penetrates through the gear ring, the utilization rate of an inner space can be further improved, and the structure of the device is more compact.
As a preferred technical scheme: the conical tops of the first output gear and the second output gear are opposite or back-to-back.
Has the beneficial effects that: the first output gear and the second output gear are arranged in a mode that the conical tops are opposite or opposite to each other, so that a part of axial acting force acting on the output shaft can be offset in the transmission process, the stress of the output shaft is balanced, and the service life of the output shaft is prolonged.
And further: the second transmission gear is a disk gear and is provided with an axial extension pipe section extending towards one side of the disk surface, the wheel shaft of the sun gear is arranged in the axial extension pipe section in a penetrating mode, and the second transmission gear is rotatably supported with the gear ring through the axial extension pipe section.
Has the advantages that: through the above-mentioned design on the one hand can realize the assembly of second drive gear, on the other hand the axial extension pipeline section of second drive gear not only wears the dress with the shaft of sun gear, but also rotates with the ring gear and supports, utilize the axial extension pipeline section of second drive gear itself to realize the assembly between second drive gear, sun gear, the ring gear three promptly, each other is restraint and support between the three in the course of the work, can improve the stability of device operation, can also reduce the assembly degree of difficulty simultaneously for inner structure is compacter.
And further: the disk surface of the second transmission gear is close to the gear ring.
Has the advantages that: the disk surface of the second transmission gear is arranged close to the gear ring, so that the internal structure of the device is more compact, the utilization rate of the internal space of the device is improved, and the overall size is further reduced.
As a preferred technical scheme: the middle part of the planet carrier is provided with a counter bore, and the wheel shaft of the sun gear is rotatably arranged in the counter bore through a central shaft bearing.
Has the beneficial effects that: through the design, the center shaft is rotatably installed in the counter bore of the planet carrier, so that the overall structure is more compact, the utilization rate of the internal space of the device is improved, and the overall size is reduced.
As a preferred technical scheme: the two ends of the output shaft extend out of the box body, and the two ends of the output shaft are power output ends.
Has the advantages that: through the design, the large-speed-increasing-ratio speed increasing device can be connected with the external power machines at two ends of the output shaft, so that single input and double output of the speed increasing device can be realized, and when one external power machine fails or needs to be overhauled, the large-speed-increasing-ratio speed increasing device does not need to be stopped, normal work cannot be influenced, the overall work efficiency can be improved, and meanwhile, the two power machines externally connected to two ends of the output shaft are respectively arranged at two sides of the output shaft, so that the spatial interference between the two working machines can be avoided.
Drawings
Fig. 1 is a sectional view of an embodiment 1 of a speed increasing device with a large speed increasing ratio of the present invention;
FIG. 2 is a schematic transmission diagram of an embodiment 1 of a speed increasing device with a large speed increasing ratio according to the present invention;
fig. 3 is a diagram showing an example of application of embodiment 1 of a speed increasing device with a large speed increasing ratio of the present invention;
description of the reference numerals:
1. a sun gear; 2. a central shaft bearing; 3. a wheel axle; 4. an input shaft; 5. an input shaft bearing; 6. a planet carrier; 7. a planetary wheel shaft; 8. a planet wheel; 9. a box body; 10. a second transmission gear; 11. a ring gear; 12. a first drive gear; 13. a first output gear; 14. an output shaft bearing; 15. an output shaft; 16. a second output gear; 17. a second transmission gear bearing; 18. a planet wheel bearing; 201. a first power generation device; 202. a first clutch; 203. a speed increasing device; 204. a second clutch; 205. a second power generation device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships that are assumed to be orientations or positional relationships, and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
The specific embodiment 1 of the large speed-increasing ratio speed-increasing device of the invention:
as shown in fig. 1, the large-speed-increase-ratio speed increasing device includes a case 9, an input shaft 4 is vertically arranged in the up-down direction of the case 9, and an output shaft 15 is horizontally arranged in the left-right direction of the case 9, that is, the input shaft 4 of the large-speed-increase-ratio speed increasing device of the present invention is arranged perpendicular to the output shaft 15 in the present embodiment. The upper end of the input shaft 4 is rotatably mounted in a mounting hole of a box body 9 through an input shaft bearing 5, the upper end of the input shaft 4 extends out of the box body 9 and is connected with an external power machine (not shown in the figure), a planet carrier 6 of a planetary gear train is arranged at the lower end of the input shaft 4, the planet carrier 6 and the input shaft 4 are designed into an integral structure, and then the power of the input shaft 4 can be transmitted to the planetary gear train through the planet carrier 6.
The left end and the right end of the output shaft 15 are rotatably mounted in corresponding mounting holes on the box body 9 through the output shaft bearing 14, and both ends of the output shaft 15 are power output ends and can extend out of the mounting holes to be connected with corresponding power generation devices, as shown in fig. 3, the left end of the output shaft 15 of the speed increasing device 203 is connected with the first power generation device 201 through the first clutch 202, and the right end of the output shaft 15 is connected with the second power generation device 205 through the second clutch 204.
The planet carrier 6 is provided with a mounting hole for mounting the planet wheel shaft 7, the planet wheel shaft 7 is fixedly mounted in the mounting hole, the planet wheel shaft 7 is rotatably mounted with a planet wheel 8 through a planet wheel bearing 18, the planet wheel 8 is respectively engaged with the sun wheel 1 and the gear ring 11 of the planetary gear train to realize the transmission between the planet carrier 6 and the gear ring 11 and between the planet carrier and the sun wheel 1, so that the power of the planet carrier 6 can be respectively transmitted to the gear ring 11 and the sun wheel 1.
The sun gear 1 is installed on the wheel shaft 3 in a rotation stopping mode through the rotation stopping key block, one end of the wheel shaft 3 extends into a counter bore formed in the lower end face of the planet carrier and is installed in the counter bore of the planet carrier 6 in a rotating mode through the central shaft bearing 2, the wheel shaft 3 and the planet carrier 6 are installed in a rotating mode, the other end of the wheel shaft 3 penetrates through the gear ring, and the second transmission gear 10 is installed at the other end of the wheel shaft 3. The second transmission gear 10 is a disk-shaped gear, the disk surface is arranged close to the gear ring 11, the internal structure can be more compact, an axial extension pipe section extending towards one side of the disk surface is arranged in the middle of the second transmission gear 10, the axial extension pipe section is arranged on the wheel shaft 3 in a penetrating mode and is assembled with the wheel shaft 3 in a rotation stopping mode through a rotation stopping key block, the outer peripheral surface of the axial extension pipe section is rotatably supported with the gear ring 11 through a second transmission gear bearing 17, namely the second transmission gear 10, the wheel shaft 3 and the gear ring 11 are assembled together through the axial extension pipe section of the second transmission gear 10, the three parts are mutually restrained and supported in the motion process, the operation stability of the device is improved, meanwhile, the assembly can be realized in a penetrating mode, the internal structure can be more compact, and the utilization rate of the internal space is improved. The second transmission gear bearing 17 overlaps with the rotation stop key block for rotation stop mounting of the second transmission gear 10 on the wheel shaft 3 in the axial direction of the rotating shaft 3, and this arrangement can further enhance the transmission stability of the second transmission gear 10 and the ring gear 11.
The second transmission gear 10 is a bevel gear and is used for being meshed with a second output gear 16 which is also a bevel gear, and the second output gear 16 is installed on the output shaft 15 in a rotation stopping way through a rotation stopping key block, so that the power is transmitted from the sun gear 1 to the output shaft 15, and the vertical arrangement of the input shaft 4 and the output shaft 15 is realized. The first transmission gear 12 is arranged on the axial end face of the gear ring 11, the first transmission gear 12 and the gear ring 11 are integrally formed, that is, the gear ring 11 and the first transmission gear 12 are designed into an integral structure, the first transmission gear 12 is a bevel gear and is used for being meshed with a first output gear 13 which is also a bevel gear, the first output gear 13 is rotationally locked on an output shaft 15 through a rotation locking key block, so that power is transmitted to the output shaft 15 through the gear ring 11, and the vertical arrangement relation between the input shaft 4 and the output shaft 15 is maintained, in sum, the freedom degree of the gear ring 11 and the sun gear 1 of the planetary gear train is constrained on the output shaft 15 through the structure, the power is shunted to the gear ring 11 and the sun gear 1 through the input shaft 4 and finally converged to the output shaft 15, and on the basis of the arrangement mode, the adjustment of the gear ratio of the first transmission gear 12 and the first output gear 13 and the gear ratio of the second transmission gear 10 and the second output gear 16 are combined, so that the speed increasing device of the invention can realize the speed increasing ratio output.
The input shaft 4 and the output shaft 15 are vertically arranged, so that the internal structure of the device is more compact, the utilization rate of the internal space is improved, and the volume is reduced, and the input and output can be reversed through the vertical arrangement, namely as shown in the following figure 3, when power generation devices are uniformly arranged at two ends of the output shaft 15, the two power generation devices and a power machine at a power input end are arranged in a staggered manner through the vertical arrangement, and the spatial interference between the speed increasing device and the power generation devices at two sides is avoided.
The first output gear 13 and the second output gear 16 are respectively arranged on two sides of the axis of the input shaft 4, the first output gear 13 is arranged close to the right end of the output shaft 15, the second output gear 16 is arranged close to the left end of the output shaft 15, and simultaneously the conical tops of the first output gear 13 and the second output gear 16 are oppositely arranged, so that the axial acting forces acting on the output shaft 15 can be mutually counteracted in the process that power is respectively transmitted to the first output gear 13 and the second output gear 16 through the first transmission gear 12 and the second transmission gear 10 and then transmitted to two sides of the output shaft 15, the stress on two ends of the output shaft 15 is balanced, and the problems that the output shaft 15 is damaged due to bending caused by the action of bending moment in the transmission process, the service life is reduced and the like are avoided.
When the large speed-increasing ratio speed-increasing device is used, power is transmitted to a planet carrier 6 of a planetary gear train through an input shaft 4, then the power is respectively transmitted to a gear ring 11 and a sun gear 1 of the planetary gear train through the planet carrier 6 to realize power split, the power is divided into two branches, the power of one branch is transmitted to a first transmission gear 12 through the gear ring 11, then is transmitted to an output shaft 15 through a first output gear 13 meshed with the first transmission gear 12, the power of the other branch is transmitted to a wheel shaft 3 through the sun gear 1, then is transmitted to a second transmission gear 10 through the wheel shaft 3, and then is transmitted to the output shaft 15 through a second output gear 16 meshed with the second transmission gear 10, so that the power is converged to the output shaft 15 through two branches, and the cone tops of the first output gear 13 and the second output gear 15 are opposite in the design, therefore, the steering directions of the first transmission gear 12 and the second transmission gear 10 need to be opposite, so that the steering directions of the first output gear 13 and the second output gear 16 can be the same, and the output shaft 15 to drive the large speed-increasing ratio speed-increasing device to realize the common output, namely, in this embodiment, the gear 11 is opposite to the sun gear 1, the steering of the present embodiment.
Through the arrangement, the transmission principle of the invention is shown in the following figure 2, and the large speed-increasing ratio output of the speed-increasing device can be realized by designing parameters among gears. The specific settings are as follows:
the number of teeth of the planet gear 8 is set to be Z1, the number of teeth of the gear ring 11 is set to be Z2, the number of teeth of the sun gear 1 is set to be Z3, the number of teeth of the first transmission gear 12 is set to be Z4, the number of teeth of the first output gear 13 is set to be Z5, the number of teeth of the second transmission gear 10 is set to be Z6, and the number of teeth of the second output gear 16 is set to be Z7. The rotation speed of the input shaft 4 is n1, the rotation speeds of the ring gear 11 and the sun gear 1 are n2 and n3, respectively, and the rotation speed of the output shaft 15 is n4.
Since the first output gear 13 and the second output gear 16 are respectively arranged on both sides of the wheel shaft 3, the rotation directions of the gear ring 11 and the sun gear 1 are opposite, and the sun gear 1 is defined to rotate clockwise when viewed from the bottom to the top at the position of the input shaft 4 in fig. 1, the gear ring 11 rotates counterclockwise, and the rotation speeds of the gear ring 11 and the sun gear 1 are calculated as follows:
the rotational speed of the ring gear 11 is:
Figure BDA0003773412230000071
the rotation speed of the sun gear 1 is:
Figure BDA0003773412230000072
the rotation speed relation of the planet carrier 6, the planet wheel 8, the gear ring 11 and the sun wheel 1 is determined according to the characteristics of the planetary gear train as follows:
Figure BDA0003773412230000073
the speed increasing ratio k is obtained as follows:
Figure BDA0003773412230000074
thus, given a speed-increasing ratio K, which is dependent on the selection of the number of teeth Z4, Z5, Z6 and Z7, given the definition of Z2 and Z3,
Figure BDA0003773412230000075
the smaller the speed increasing ratio is, the larger the speed increasing ratio is, and the larger speed increasing ratio can be obtained on the premise of meeting the actual requirement and ensuring the transmission efficiency. The specific calculation steps are as follows:
1. determining the modulus of the gear ring 11, the planet wheel 8 and the sun wheel 1 according to the transmission power, determining the tooth number Z2 of the gear ring 11 according to the structure size of the speed increasing device, and enabling the tooth numbers of Z1, Z2 and Z3 to meet Z1= (Z2-Z3)/2;
2. calculating the tooth number combination of Z4, Z5, Z6 and Z7 according to the gear ratio of Z2 and Z3 and the speed increasing ratio K;
3. according to the calculation result of 2, the following constraint conditions are satisfied:
1) The tooth number Z4 of the first transmission gear 12 is greater than the tooth number Z6 of the second transmission gear 10;
2) Determining the minimum tooth numbers of Z4, Z5, Z6 and Z7 and related gear parameters according to the transmitted power;
3) The gear structure is not interfered;
4. the optimal combination of tooth numbers is determined and the speed-increasing ratio is modified to determine the final speed-increasing ratio of the device.
The following are three sets of data obtained by design, from which it can be seen that the speed increasing device designed by the present invention can achieve a large speed increasing ratio of 40 or more at maximum.
Figure BDA0003773412230000076
Embodiment 2 of the large speed-increasing ratio speed-increasing device of the present invention: the present embodiment is different from embodiment 1 in that in embodiment 1, the carrier and the input shaft are designed as an integral structure, in this embodiment, the carrier and the input shaft are not designed as an integral structure, and the carrier is fixed at the lower end of the input shaft through a rotation stopping key block.
Embodiment 3 of the large speed-increasing ratio speed-increasing device of the present invention: the difference between the present embodiment and embodiment 1 is that in embodiment 1, the sun gear is fixed on the axle through the rotation-stop key block, and in this embodiment, the sun gear and the axle are designed as an integral structure, in this case, the axle is a gear shaft, and the gear of the gear shaft is the sun gear of the planetary gear train.
Embodiment 4 of the large speed-increasing ratio speed-increasing device of the present invention: the difference between this embodiment and embodiment 1 is that in embodiment 1, the gear ring and the first transmission gear are designed as an integral structure, and in this embodiment, the gear ring and the first transmission gear are not designed as an integral structure any more, and the first transmission gear has an axial connection hole and is fixedly connected with the gear ring through the axial connection hole.
Embodiment 5 of the large speed-increasing ratio speed-increasing device of the present invention: the present embodiment is different from embodiment 1 in that in embodiment 1, the first transmission gear is in mesh transmission with the first output gear, and the second transmission gear is in mesh transmission with the second output gear, and in this embodiment, transition gears may be provided between the first transmission gear and the first output gear and between the second transmission gear and the second output gear as required.
Embodiment 6 of the large speed-increasing ratio speed-increasing device of the present invention: the present embodiment is different from embodiment 1 in that in embodiment 1, the second transmission gear is a disk gear, and an axially extending pipe section extending to one side of the disk surface is provided at a middle position of the second transmission gear, in this embodiment, the second transmission gear is a disk gear without an axially extending pipe section, and at this time, the lower end of the wheel shaft of the sun gear passes through the ring gear and is directly rotatably supported with the ring gear, and the second transmission gear is rotatably fixed at the lower end of the wheel shaft through a rotation stop key block.
Embodiment 7 of the speed increasing device with a large speed increasing ratio of the present invention: the present embodiment is different from embodiment 1 in that in embodiment 1, the first output gear and the second output gear are arranged with their respective conical tops facing each other, and in this embodiment, the first output gear and the second output gear are arranged with their respective conical tops facing each other.
Embodiment 8 of the large speed-increasing ratio speed-increasing device of the present invention: the present embodiment is different from embodiment 1 in that in embodiment 1, the conical tops of the first output gear and the second output gear are arranged opposite to each other, and in this embodiment, the conical tops of the first output gear and the second output gear are arranged opposite to each other.
Embodiment 9 of the large speed-increasing ratio speed-increasing device of the present invention: the difference between the embodiment and the embodiment 1 is that in the embodiment 1, the wheel shaft is rotatably installed in the counter bore of the planet carrier through the central shaft bearing, and in the embodiment, the upper end of the wheel shaft is arranged at the lower part of the lower end surface of the planet carrier, and the wheel shaft and the planet carrier are not directly assembled, so that the assembly is simplified.
Embodiment 10 of the large speed-increasing ratio speed-increasing device of the present invention: the difference between this embodiment and embodiment 1 is that in embodiment 1, one end of the wheel shaft extends into a counterbore arranged on the lower end surface of the planet carrier, and is rotatably mounted in the counterbore of the planet carrier through a central shaft bearing.
Embodiment 11 of the large speed-increasing ratio speed-increasing device of the present invention: the present embodiment is different from embodiment 1 in that in embodiment 1, the first transmission gear, the second transmission gear, the first output gear and the second output gear are all bevel gears, in this embodiment, the first transmission gear, the second transmission gear, the first output gear and the second output gear are all straight gears, at this time, the input shaft and the output shaft are arranged in parallel, the first transmission gear is arranged on the outer circumferential surface of the gear ring and designed as an integral structure with the gear ring, and a reversing gear is arranged between the second transmission gear and the second output gear.
Embodiment 12 of the large speed-increasing ratio speed-increasing device of the present invention: the present embodiment is different from embodiment 12 in that in embodiment 10, the first transmission gear 12 is provided on the outer peripheral surface of the ring gear and is designed as an integral structure with the ring gear, and in this embodiment, the first transmission gear is fixed on the outer peripheral surface of the ring gear by means of interference fit.
Embodiment 13 of the large speed-increasing ratio speed-increasing device of the present invention: the difference between this embodiment and embodiment 1 is that in embodiment 1, both the left and right ends of the output shaft are power output ends, and both the left and right ends can extend out of the mounting hole to be connected with the corresponding power generation device.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims (9)

1. A large-speed-increase-ratio speed increasing device comprises a box body (9), wherein an input shaft (4) and an output shaft (15) are rotationally assembled in the box body (9), the input shaft (4) is provided with a power input end exposed out of the box body (9), the output shaft (15) is provided with a power output end exposed out of the box body (9), the large-speed-increase-ratio speed increasing device is characterized in that the input shaft (4) and the output shaft (15) are in transmission connection through a planetary gear train, a planetary carrier (6) and the input shaft (4) of the planetary gear train are circumferentially stopped rotating and transmit the power of the input shaft to a gear ring (11) and a sun gear (1), the gear ring (11) and the sun gear (1) of the planetary gear train are in transmission connection with the output shaft (15), and the rotation directions of the gear ring (11) and the sun gear (1) are opposite.
2. The large-speed-ratio speed increasing device according to claim 1, wherein the output shaft (15) is rotatably assembled with a first output gear (13) and a second output gear (16), a first transmission gear (12) is arranged on the gear ring (11) of the planetary gear train and is in meshing transmission with the first output gear (13) through the first transmission gear (12), and a second transmission gear (10) is arranged on the wheel shaft (3) of the sun gear (1) of the planetary gear train and is in meshing transmission with the second output gear (16) through the second transmission gear (10).
3. The large-speed-ratio speed increasing device according to claim 2, wherein the input shaft (4) is arranged perpendicular to the output shaft (15), the first output gear (13) and the second output gear (16) are both bevel gears, the first transmission gear (12) is a bevel gear and is positioned on the axial end face of the gear ring, the second transmission gear (10) is a bevel gear and is installed at the end of the wheel shaft (3) of the sun gear (1) in a rotation stopping manner, and the first output gear (13) and the second output gear (16) are respectively arranged on two sides of the axis of the input shaft (4).
4. A large speed-increasing ratio speed-increasing gear according to claim 3, wherein the planet carrier (6) and the input shaft (4) are of an integral structure, one end of the wheel shaft (3) of the sun gear (1) is rotatably assembled with the planet carrier (6), and the other end passes through the gear ring (11) and is rotatably supported with the gear ring (11).
5. A large speed-increasing ratio speed-increasing gear according to claim 3, wherein the peaks of the first output gear (13) and the second output gear (16) are opposite or opposite to each other.
6. The speed increasing device with large speed increasing ratio according to claim 4 is characterized in that the second transmission gear (10) is a disk gear, the second transmission gear (10) is provided with an axial extension pipe section extending towards one side of the disk surface, the wheel shaft (3) of the sun gear (1) is arranged in the axial extension pipe section in a penetrating mode, and the second transmission gear (10) is rotatably supported with the gear ring (11) through the axial extension pipe section.
7. The speed increasing device with a large speed increasing ratio according to claim 6, wherein the disk surface of the second transmission gear (10) is arranged close to the gear ring (11).
8. A large-speed-increasing-ratio speed increasing device according to any one of claims 4 to 7, characterized in that the middle of the planet carrier (6) is provided with a counter bore, and the wheel shaft (3) of the sun wheel (1) is rotatably installed in the counter bore through the central shaft bearing (2).
9. The speed increasing device with a large speed increasing ratio according to any one of claims 1 to 7, wherein both ends of the output shaft (15) extend out of the box body (9), and both ends are power output ends.
CN202210909212.6A 2022-07-29 2022-07-29 Speed increasing device with large speed increasing ratio Pending CN115163755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210909212.6A CN115163755A (en) 2022-07-29 2022-07-29 Speed increasing device with large speed increasing ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210909212.6A CN115163755A (en) 2022-07-29 2022-07-29 Speed increasing device with large speed increasing ratio

Publications (1)

Publication Number Publication Date
CN115163755A true CN115163755A (en) 2022-10-11

Family

ID=83477725

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210909212.6A Pending CN115163755A (en) 2022-07-29 2022-07-29 Speed increasing device with large speed increasing ratio

Country Status (1)

Country Link
CN (1) CN115163755A (en)

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