CN106838136B - A kind of planet-gear speed reducer - Google Patents
A kind of planet-gear speed reducer Download PDFInfo
- Publication number
- CN106838136B CN106838136B CN201710079624.0A CN201710079624A CN106838136B CN 106838136 B CN106838136 B CN 106838136B CN 201710079624 A CN201710079624 A CN 201710079624A CN 106838136 B CN106838136 B CN 106838136B
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- Prior art keywords
- bearing
- gear
- planet
- sun gear
- planet carrier
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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
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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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
- F16H2057/085—Bearings for orbital gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention relates to reducer technology fields, provide a kind of planet-gear speed reducer, including output shaft, oil sealing, output flange, planet carrier, first sun gear, first planetary gear, first ring gear, input shaft, connecting flange, input flange, second sun gear, second planetary gear, second ring gear, first bearing, second bearing, 3rd bearing, fourth bearing, first sun gear is an integral molding structure with planet carrier, blind hole is provided at output shaft and the first sun gear opposite position, first sun gear end face elongation moulding into blind hole is provided with locating shaft, positioning bearing is provided between locating shaft and blind hole, positioning bearing holder (housing, cover) is located on locating shaft.A kind of planet-gear speed reducer provided by the invention, production and processing is convenient, and installation is simple, and easy maintenance, high transmission accuracy is with small vibration, long service life, and device reliability is high.
Description
Technical field
The present invention relates to reducer technology field more particularly to a kind of planet-gear speed reducers.
Background technique
Planet-gear speed reducer is also known as planetary reducer, servo deceleration machine.In speed reducer family, planetary reducer with
Many advantages, such as its is small in size, and transmission efficiency is high, and reduction range is wide, and precision is high, and it is widely used in servo motor, stepping electricity
In the transmission systems such as machine, direct current generator.It is exactly that being mainly used to, which reduces revolving speed, increases under the premise of guaranteeing precision drive that it, which is acted on,
Large torque and reduction load/motor rotary inertia ratio.Planet-gear speed reducer primary drive structure includes planet carrier, planet
Wheel, sun gear, gear ring etc., in traditional planet-gear speed reducer, planet carrier and sun gear are split type structures, are processed respectively,
There are mounting hole, sun gears to be fixed in mounting hole by pin shaft for planet carrier front end, realizes the connection of sun gear and planet carrier, adopts
Have the disadvantage that production and processing is inconvenient with this structure, installation trouble, maintenance is inconvenient, and may pine using time length
It is dynamic, it may appear that the case where sun gear play, sun gear vibration is big, causes the transmission accuracy of device to reduce, reduces making for device
Use the service life.
Therefore, how existing planet-gear speed reducer is improved, so that it is overcome drawbacks described above is art technology
Personnel's problem urgently to be resolved.
Summary of the invention
In view of the above-mentioned state of the art, technical problem to be solved by the present invention lies in provide a kind of planetary gear reduction
Fast machine, production and processing is convenient, and installation is simple, and easy maintenance, high transmission accuracy is with small vibration, long service life, device reliability
It is high.
The technical scheme of the invention to solve the technical problem is:
A kind of planet-gear speed reducer, including output shaft, oil sealing, output flange, planet carrier, the first sun gear, the first row
Star-wheel, the first ring gear, input shaft, connecting flange, input flange, the second sun gear, the second planetary gear, the second ring gear,
One bearing, second bearing, 3rd bearing, fourth bearing, the output shaft, the planet carrier, the input shaft, described first are too
On same central axis, first sun gear is an integral molding structure with the planet carrier for sun wheel, second sun gear,
First planetary gear is mounted on the output shaft by the first planet axis, first planetary gear and first sun gear
And first ring gear be meshed, second sun gear is fixedly connected with the input shaft front end, and second planetary gear passes through
Second planet axis is mounted on the planet carrier, and second planetary gear is mutually nibbled with second sun gear and the second ring gear
It closes, the first bearing and the second bearing are arranged between the output shaft and the output flange, the 3rd bearing
Be arranged between the planet carrier and the connecting flange, fourth bearing setting the input shaft and the planet carrier it
Between, it is provided with blind hole at the output shaft and the first sun gear opposite position, first sun gear end face is to described
Elongation moulding is provided with locating shaft in blind hole, and positioning bearing, the locating shaft are provided between the locating shaft and the blind hole
Bearing sleeve is located on the locating shaft.
The planet carrier is provided with the first ladder-like rotary table and the first card slot at position corresponding with the 3rd bearing,
Be provided with the first snap ring in the groove, two end faces of the 3rd bearing respectively with the described first ladder-like rotary table, described
First snap ring offsets company.
Be provided at planet carrier position corresponding with the fourth bearing the second ladder-like rotary table, the second card slot and
Groove is provided with the second snap ring in second card slot, and two end faces of the fourth bearing are ladder-like with described second respectively
Rotary table, second snap ring offset company, are provided with sealing ring in the groove.
The number of first planetary gear is three, is evenly arranged on the planet carrier.
The utility model has the advantages that
Using technical solution provided by the invention, compared with prior art, have the following beneficial effects:
1, a kind of planet-gear speed reducer of the invention is provided at planet carrier position corresponding with 3rd bearing
One ladder-like rotary table and the first card slot, are provided with the first snap ring in the first card slot, and two end faces of 3rd bearing are respectively with first
Ladder-like rotary table, the first snap ring offset company.Using such technical solution, 3rd bearing can be limited, prevent 3rd bearing
The play in rotation, improves device transmission accuracy.
2, a kind of planet-gear speed reducer of the invention is provided at planet carrier position corresponding with fourth bearing
Two ladder-like rotary tables, the second card slot and groove, are provided with the second snap ring in the second card slot, two end faces of fourth bearing respectively with
Second ladder-like rotary table, the second snap ring offset company, are provided with sealing ring in groove.It, can be to the 4th axis using such technical solution
It holds and is limited, prevent fourth bearing play, sealing ring in rotation from can prevent the impurity such as dust from entering planet from input shaft end
In frame, device transmission accuracy is influenced.
3, a kind of planet-gear speed reducer of the invention, the number of the first planetary gear are three, are evenly arranged in planet
On frame.Using such technical solution, it is driven that effect is good and high transmission accuracy.
4, a kind of planet-gear speed reducer of the invention, the first sun gear are an integral molding structure with planet carrier, and production adds
Work is convenient, and installation is simple, easy maintenance, high transmission accuracy, long service life, and the first sun gear front end is additionally provided with positioning
Axis and positioning bearing, locating shaft and positioning bearing are arranged in the blind hole of output shaft end, the first sun gear and planet carrier rotation
When it is highly stable, it is with small vibration, further improve transmission accuracy, device reliability is high.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Output shaft 1, oil sealing 2, output flange 3, planet carrier 4, the first sun gear 5, the first planetary gear 6, the first ring gear 7,
Input shaft 8, connecting flange 9, input flange 10, the second sun gear 11, the second planetary gear 12, the second ring gear 13, first bearing
14, second bearing 15,3rd bearing 16, fourth bearing 17, the first planet axis 18, the second planet axis 19, blind hole 20, locating shaft
21, position bearing 22, the first ladder-like rotary table 23, the first card slot 24, the first snap ring 25, the second ladder-like rotary table 26, the second card
Slot 27, groove 28, the second snap ring 29, sealing ring 30.
Specific embodiment
, there are further understanding and understanding in the effect of to make to structure feature of the invention and being reached, to preferable
Examples and drawings cooperation detailed description, is described as follows:
As shown in Figure 1, a kind of planet-gear speed reducer, as an improvement of the present invention, including output shaft 1, oil sealing 2, output
Flange 3, planet carrier 4, the first sun gear 5, the first planetary gear 6, the first ring gear 7, input shaft 8, connecting flange 9, input flange
10, the second sun gear 11, the second planetary gear 12, the second ring gear 13, first bearing 14, second bearing 15,3rd bearing 16,
Four bearings 17, output shaft 1, planet carrier 4, input shaft 8, the first sun gear 5, the second sun gear 11 are on same central axis, and
One sun gear 5 is an integral molding structure with planet carrier 4, and the first planetary gear 6 is mounted on output shaft 1 by the first planet axis 18,
First planetary gear 6 is meshed with the first sun gear 5 and the first ring gear 7, the second sun gear 11 and the fixed company in 8 front end of input shaft
It connects, the second planetary gear 12 is mounted on planet carrier 4 by the second planet axis 19, the second planetary gear 12 and the second sun gear 11 and the
Two ring gears 13 are meshed, and first bearing 14 and second bearing 15 are arranged between output shaft 1 and output flange 3,3rd bearing
16 be arranged between planet carrier 4 and connecting flange 9, fourth bearing 17 be arranged between input shaft 8 and planet carrier 4, output shaft 1 with
Blind hole 20 is provided at first sun gear, 5 opposite position, 5 end face of the first sun gear elongation moulding into blind hole 20 is provided with fixed
Position axis 21, is provided with positioning bearing 22 between locating shaft 21 and blind hole 20, positioning bearing 22 is set on locating shaft 21.First too
Sun wheel 5 is an integral molding structure with planet carrier 4, and production and processing is convenient, and installation is simple, and easy maintenance, high transmission accuracy uses the longevity
Life length, and 5 front end of the first sun gear is additionally provided with locating shaft 21 and positioning bearing 22, and locating shaft 21 and positioning bearing 22 are arranged
In the blind hole 20 of 1 end of output shaft, the first sun gear 5 and planet carrier 4 are highly stable when rotating, with small vibration, further increase
Transmission accuracy, device reliability are high.
As further improvement of the present invention, planet carrier 4 is provided with first at position corresponding with 3rd bearing 16
Ladder-like rotary table 23 and the first card slot 24 are provided with the first snap ring 25, two end faces point of 3rd bearing 16 in first card slot 24
Not with the first ladder-like rotary table 23,25 company of offseting of the first snap ring, 3rd bearing 16 can be limited, prevent 3rd bearing 16 from existing
Play when rotation improves device transmission accuracy.
Be provided at the position corresponding with fourth bearing 17 of planet carrier 4 second ladder-like rotary table 26, the second card slot 27 and
Groove 28, is provided with the second snap ring 29 in the second card slot 27, two end faces of fourth bearing 17 respectively with the second ladder-like rotary table
26,29 company of offseting of the second snap ring is provided with sealing ring 30 in groove 28, can limit to fourth bearing 17, prevent the 4th axis
Hold 17 in rotation play, sealing ring 30 can prevent the impurity such as dust from entering in planet carrier 4 from 8 end of input shaft, influence device biography
Dynamic precision.The number of first planetary gear 6 is three, is evenly arranged on planet carrier 4, and effect is good and high transmission accuracy for transmission.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of skill in the art that it still can be right
Technical solution documented by previous embodiment is modified, or is replaced on an equal basis to part of technical characteristic；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (4)
1. a kind of planet-gear speed reducer, which is characterized in that including output shaft (1), oil sealing (2), output flange (3), planet carrier
(4), the first sun gear (5), the first planetary gear (6), the first ring gear (7), input shaft (8), connecting flange (9), input flange
(10), the second sun gear (11), the second planetary gear (12), the second ring gear (13), first bearing (14), second bearing (15),
3rd bearing (16), fourth bearing (17), the output shaft (1), the planet carrier (4), the input shaft (8), described first
Sun gear (5), second sun gear (11) are on same central axis, first sun gear (5) and the planet carrier (4)
It is an integral molding structure, first planetary gear (6) is mounted on the output shaft (1) by the first planet axis (18), described
First planetary gear (6) is meshed with first sun gear (5) and the first ring gear (7), second sun gear (11) and institute
It states input shaft (8) front end to be fixedly connected, second planetary gear (12) is mounted on the planet carrier by the second planet axis (19)
(4) on, second planetary gear (12) is meshed with second sun gear (11) and the second ring gear (13), the first axle
It holds (14) and the second bearing (15) is arranged between the output shaft (1) and the output flange (3), the 3rd bearing
(16) it is arranged between the planet carrier (4) and the connecting flange (9), the fourth bearing (17) is arranged in the input shaft
(8) between the planet carrier (4), blind hole is provided at the output shaft (1) and the first sun gear (5) opposite position
(20), the first sun gear (5) end face is provided with locating shaft (21), the locating shaft to the blind hole (20) interior elongation moulding
(21) positioning bearing (22) is provided between the blind hole (20), the positioning bearing (22) is set in the locating shaft (21)
On.
2. a kind of planet-gear speed reducer according to claim 1, which is characterized in that the planet carrier (4) and described the
The first ladder-like rotary table (23) and the first card slot (24), first card slot are provided at the corresponding position of three bearings (16)
(24) in be provided with the first snap ring (25), two end faces of the 3rd bearing (16) respectively with the described first ladder-like rotary table
(23), the first snap ring (25) company of offseting.
3. a kind of planet-gear speed reducer according to claim 1, which is characterized in that the planet carrier (4) and described the
The second ladder-like rotary table (26), the second card slot (27) and groove (28) are provided at the corresponding position of four bearings (17), it is described
Is provided with the second snap ring (29) in second card slot (27), two end faces of the fourth bearing (17) respectively with second ladder
Shape rotary table (26), second snap ring (29) company of offseting, the groove (28) is interior to be provided with sealing ring (30).
4. a kind of planet-gear speed reducer according to claim 1, which is characterized in that the number of first planetary gear (6)
Mesh is three, is evenly arranged on the planet carrier (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079624.0A CN106838136B (en) | 2017-02-10 | 2017-02-10 | A kind of planet-gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079624.0A CN106838136B (en) | 2017-02-10 | 2017-02-10 | A kind of planet-gear speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106838136A CN106838136A (en) | 2017-06-13 |
| CN106838136B true CN106838136B (en) | 2019-01-18 |
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ID=59128229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710079624.0A Active CN106838136B (en) | 2017-02-10 | 2017-02-10 | A kind of planet-gear speed reducer |
Country Status (1)
| Country | Link |
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| CN (1) | CN106838136B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541914A (en) * | 2019-09-30 | 2019-12-06 | 无锡威孚中意齿轮有限责任公司 | Anti-channeling's planetary reducer output shaft mounting structure |
| CN113685496B (en) * | 2021-10-26 | 2021-12-28 | 江苏摩多利传动机械制造有限公司 | Speed reducer for transmission of AGV trolley for logistics transportation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0792415B2 (en) * | 1994-10-07 | 2007-08-29 | Windtec Consulting GmbH | Planetary gear for wind turbines |
| CN103133609A (en) * | 2013-03-25 | 2013-06-05 | 盐城市金洲机械制造有限公司 | Planet speed reducer |
| CN204312633U (en) * | 2014-12-15 | 2015-05-06 | 宁波中大力德传动设备有限公司 | A kind of plane table thermoconductivity meter |
| CN205331403U (en) * | 2015-11-26 | 2016-06-22 | 宁波中大力德智能传动股份有限公司 | High -accuracy planetary gear reducer |
| CN205841637U (en) * | 2016-06-15 | 2016-12-28 | 广州启帆工业机器人有限公司 | A kind of planet-gear speed reducer |
-
2017
- 2017-02-10 CN CN201710079624.0A patent/CN106838136B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106838136A (en) | 2017-06-13 |
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