CN214465964U - Compact multi-stage planetary reducer - Google Patents
Compact multi-stage planetary reducer Download PDFInfo
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- CN214465964U CN214465964U CN202120331679.8U CN202120331679U CN214465964U CN 214465964 U CN214465964 U CN 214465964U CN 202120331679 U CN202120331679 U CN 202120331679U CN 214465964 U CN214465964 U CN 214465964U
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- reducing mechanism
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The compact multi-stage planetary reducer comprises an inner gear ring barrel which is through from left to right, a mandrel is arranged on the inner gear ring barrel and on the same central line, a first-stage speed reducing mechanism, a second-stage speed reducing mechanism and a third-stage speed reducing mechanism are sequentially arranged on the mandrel in a rotating mode from right to left, and the first-stage speed reducing mechanism, the second-stage speed reducing mechanism and the third-stage speed reducing mechanism are sequentially in transmission connection. The utility model discloses principle science, compact structure can realize the auto-lock when transmission efficiency is high, can bear great axial force, and transmission efficiency improves greatly.
Description
Technical Field
The utility model relates to a reduction gear, concretely relates to multistage planetary reducer of compact.
Background
At present, in the field of speed reducer equipment, a planetary speed reducer is small in size, high in transmission efficiency, wide in speed reduction range and fine
High in speed, and the like, and is widely applied to transmission systems such as servo motors, stepping motors and the like. The main transmission structure of the planet wheel speed reducer is as follows: planet wheel, sun gear, ring gear, planet carrier. The existing planetary speed reducer is usually of a single-stage speed reducing structure and also has a multi-stage planetary speed reducer, but the structure is complex, the bearing capacity is small, the size is large, and the planetary speed reducer is difficult to be suitable for the transmission occasion with limited axial space.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide a compact multistage planetary reducer who is small, axial force bears big.
In order to solve the technical problem, the utility model adopts the following technical scheme: the compact multi-stage planetary reducer comprises an inner gear ring barrel which is through from left to right, a mandrel is arranged on the inner gear ring barrel and on the same central line, a first-stage speed reducing mechanism, a second-stage speed reducing mechanism and a third-stage speed reducing mechanism are sequentially arranged on the mandrel in a rotating mode from right to left, and the first-stage speed reducing mechanism, the second-stage speed reducing mechanism and the third-stage speed reducing mechanism are sequentially in transmission connection.
The one-level reduction gears include the one-level planet carrier, and the right side of one-level planet carrier rotates and is equipped with three one-level planet wheel, and three one-level planet wheel evenly arranges along the circumferencial direction of one-level planet carrier, and three one-level planet wheel all meshes with the ring gear barrel, and the centre bore of one-level planet carrier inlays and establishes pressure equipment and be equipped with the second grade sun gear of rotation connection at the dabber.
The secondary speed reducing mechanism comprises a secondary planet carrier, three secondary planet wheels are arranged on the right side of the secondary planet carrier in a rotating mode, the three secondary planet wheels are evenly arranged along the circumferential direction of the secondary planet carrier, the three secondary planet wheels are all meshed with the inner gear ring barrel, the secondary sun wheel is meshed with the three secondary planet wheels simultaneously, and a center hole of the secondary planet carrier is embedded with a tertiary sun wheel which is connected to the central shaft in a rotating mode.
The three-level speed reducing mechanism comprises a three-level planet carrier, four three-level planet wheels are arranged on the right side of the three-level planet carrier in a rotating mode, the four three-level planet wheels are evenly arranged along the circumferential direction of the three-level planet carrier, the four three-level planet wheels are all meshed with the inner gear ring barrel, the three-level sun wheel is meshed with the four three-level planet wheels simultaneously, the outer circle of the three-level planet carrier is connected with the inner wall of the left port of the inner gear ring barrel in a rotating mode through a bearing, and a speed reducing power output shaft is coaxially and fixedly arranged in the center of the left side face of the three-level planet carrier.
The right end of the inner gear ring barrel is provided with a positioning end cover, and the center of the positioning end cover is provided with a round hole.
The disc thickness of one-level planet carrier, second grade planet carrier and tertiary planet carrier increases in proper order, and the intensity of one-level planet wheel, second grade planet wheel and tertiary planet wheel increases in proper order, and the intensity of second grade sun gear is less than tertiary sun gear.
The right flank of second grade sun gear flushes with one-level planet carrier right flank, and the right flank of tertiary sun gear flushes with second grade planet carrier right flank.
By adopting the technical scheme, when the utility model is used, the first-stage sun wheel is firstly installed at one end of the output shaft of the power equipment (motor), at the same time, the utility model is installed at the end surface of one side of the output shaft of the power equipment (motor), the first-stage sun wheel is engaged with the three first-stage planet wheels simultaneously, the power equipment (motor) is started to lead the output shaft to rotate so as to drive the first-stage sun wheel to rotate, the three first-stage planet wheels are driven to rotate along the inner gear ring cylinder body so as to drive the first-stage planet carrier to rotate, the first-stage planet carrier and the second-stage sun wheel are embedded and pressed into a whole, so that the second-stage sun wheel rotates along with the first-stage planet carrier coaxially, the second-stage sun wheel is driven to rotate along the inner gear ring cylinder body so as to drive the second-stage planet carrier to rotate, the second-stage planet carrier and the third-stage sun wheel are embedded and pressed into a whole, so that the third-stage sun wheel rotates along with the second-stage planet carrier coaxially, the three-stage sun wheel drives the four three-stage planet wheels to rotate along the inner gear ring barrel so as to drive the three-stage planet carrier to rotate, and the final rotating speed is output by the speed reduction power output shaft which is fixedly connected to the left side surface of the three-stage planet carrier in the same axial direction.
The planet carrier with planet wheel normal running fit's installation axle can adopt two kinds of schemes of split type or integral type:
1. when the split type scheme is adopted, the mounting holes formed in the discs of the mounting shaft and the planet carrier can be made of different materials, and the mounting shaft is pressed in the mounting hole in the disc of the planet carrier after the processing is finished. The strength of the shaft can be guaranteed to a greater extent, and meanwhile, the production difficulty is small and the manufacturability is good.
2. When adopting the integral type scheme, can cooperate the gear gasket to install the disc right side of planet carrier and the cover is established and is installed epaxially, avoids planet wheel processing fillet influence. The number of parts is small, and the assembly is simple.
In addition, the planet carrier and the sun wheel are processed respectively and then are pressed and assembled into a whole, and after the pressing and assembling are completed, the right end face of the sun wheel is ensured to be flush with the right side face of the disc of the planet carrier, so that the meshing of the front-stage planet wheel and the sun wheel is not influenced.
To sum up, the utility model discloses principle science, compact structure can realize the auto-lock when transmission efficiency is high, can bear great axial force, and transmission efficiency improves greatly.
Drawings
Fig. 1 is an exploded view of the present invention.
Detailed Description
As shown in fig. 1, the utility model discloses a multistage planetary reducer of compact, including controlling penetrating ring gear barrel 1, ring gear barrel 1 is equipped with a dabber 2 with the central line, and spindle 2 goes up from the right side to the left side and rotates in proper order and is equipped with one-level reduction gears, second grade reduction gears and tertiary reduction gears, and one-level reduction gears, second grade reduction gears and tertiary reduction gears are the transmission connection in proper order.
One-level reduction gears includes one-level planet carrier 3, and the right side of one-level planet carrier 3 rotates and is equipped with three one-level planet wheel 4, and three one-level planet wheel 4 evenly arranges along the circumferencial direction of one-level planet carrier 3, and three one-level planet wheel 4 all meshes with ring gear barrel 1, and the centre bore of one-level planet carrier 3 inlays and establishes pressure equipment and is equipped with the second grade sun gear 5 of rotation connection on dabber 2.
The secondary speed reducing mechanism comprises a secondary planet carrier 6, three secondary planet wheels 7 are arranged on the right side of the secondary planet carrier 6 in a rotating mode, the three secondary planet wheels 7 are evenly arranged along the circumferential direction of the secondary planet carrier 6, the three secondary planet wheels 7 are all meshed with the inner gear ring barrel body 1, the secondary sun wheel 5 is meshed with the three secondary planet wheels 7 simultaneously, and a central hole of the secondary planet carrier 6 is embedded with a tertiary sun wheel 8 which is connected to the central shaft 2 in a rotating mode.
The three-level speed reducing mechanism comprises a three-level planet carrier 9, four three-level planet wheels 10 are arranged on the right side of the three-level planet carrier 9 in a rotating mode, the four three-level planet wheels 10 are evenly arranged along the circumferential direction of the three-level planet carrier 9, the four three-level planet wheels 10 are all meshed with the inner gear ring barrel body 1, the three-level sun wheel 8 is meshed with the four three-level planet wheels 10 at the same time, the outer circle of the three-level planet carrier 9 is connected with the inner wall of the left port of the inner gear ring barrel body 1 in a rotating mode through a bearing 11, and a speed reducing power output shaft 12 is coaxially and fixedly arranged in the center of the left side face of the three-level planet carrier 9.
The right end of the annular gear cylinder body 1 is provided with a positioning end cover 13, and the center of the positioning end cover 13 is provided with a round hole 14.
The disc thickness of one-level planet carrier 3, second grade planet carrier 6 and tertiary planet carrier 9 increases in proper order, and the intensity of one-level planet wheel 4, second grade planet wheel 7 and tertiary planet wheel 10 increases in proper order, and the intensity of second grade sun gear 5 is less than tertiary sun gear 8.
The right side of the second-stage sun gear 5 is flush with the right side of the first-stage planet carrier 3, and the right side of the third-stage sun gear 8 is flush with the right side of the second-stage planet carrier 6.
The planet carrier and the installation shaft 15 of the planet gear running fit adopt an integrated structure, and the gear gasket 16 is installed on the right side of the disk of the planet carrier and sleeved on the installation shaft 15.
Adopt above-mentioned technical scheme, the utility model discloses list two kinds of reduction gear design schemes altogether, following two kinds of schemes all satisfy the design demand:
scheme one transmission ratio:
each stage of transmission ratio of planetary reducer
Total gear ratio
And a second scheme is as follows:
each stage of transmission ratio of planetary reducer
Total gear ratio
The speed reducer selects the gear module m =0.6, and in order to save the processing and assembling cost of the speed reducer and make the volume of the speed reducer as small as possible, the three-stage planetary speed reducer shares the same inner gear ring cylinder 1. Considering that the torque transmitted by the load output end of the speed reducer is large, in order to enable the speed reducer to work in a larger load environment, the following measures are taken to enable the structure of the speed reducer to be more reliable:
1. three planet wheels are uniformly arranged on the first-stage planet carrier 3 and the second-stage planet carrier 6, and four planet wheels are uniformly arranged on the third-stage planet carrier 9.
2. The thickness of the planet wheel on the first-stage planet carrier 3 and the second-stage planet carrier 6 is 2.5-3.5 mm, and the thickness of the planet wheel on the third-stage planet carrier 9 is 5-6 mm.
When the utility model is used, the first-level sun wheel is firstly installed at one end of the output shaft of the power equipment (motor), at the same time, the utility model is installed at the end surface of one side of the output shaft of the power equipment (motor), the first-level sun wheel is meshed with the three first-level planet wheels 4 simultaneously, the power equipment (motor) is started to lead the output shaft to rotate to drive the first-level sun wheel to rotate, the three first-level planet wheels 4 are driven to rotate along the inner gear ring barrel 1 to drive the first-level planet carrier 3 to rotate, the first-level planet carrier 3 and the second-level sun wheel 5 are embedded and pressed into a whole, so that the second-level sun wheel 5 rotates coaxially with the first-level planet carrier 3, the second-level sun wheel 5 is driven to rotate along the inner gear ring barrel 1 to drive the second-level planet carrier 6 to rotate, the second-level planet carrier 6 and the third-level sun wheel 8 are embedded and pressed into a whole, so that the third-level sun wheel 8 rotates coaxially with the second-level planet carrier 6, the three-stage sun gear 8 drives four three-stage planet gears 10 to rotate along the inner gear ring barrel 1 so as to drive the three-stage planet carrier 9 to rotate, and the final rotating speed is output by a speed reduction power output shaft 12 which is coaxially and fixedly connected to the left side surface of the three-stage planet carrier 9.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (6)
1. Compact multistage planetary reducer, its characterized in that: the inner gear ring comprises an inner gear ring barrel which is through from left to right, a mandrel is arranged on the inner gear ring barrel and on the same central line, a primary speed reducing mechanism, a secondary speed reducing mechanism and a tertiary speed reducing mechanism are sequentially arranged on the mandrel in a rotating mode from right to left, and the primary speed reducing mechanism, the secondary speed reducing mechanism and the tertiary speed reducing mechanism are sequentially connected in a transmission mode;
the one-level reduction gears include the one-level planet carrier, and the right side of one-level planet carrier rotates and is equipped with three one-level planet wheel, and three one-level planet wheel evenly arranges along the circumferencial direction of one-level planet carrier, and three one-level planet wheel all meshes with the ring gear barrel, and the centre bore of one-level planet carrier inlays and establishes pressure equipment and be equipped with the second grade sun gear of rotation connection at the dabber.
2. The compact multi-stage planetary reducer of claim 1, wherein: the secondary speed reducing mechanism comprises a secondary planet carrier, three secondary planet wheels are arranged on the right side of the secondary planet carrier in a rotating mode, the three secondary planet wheels are evenly arranged along the circumferential direction of the secondary planet carrier, the three secondary planet wheels are all meshed with the inner gear ring barrel, the secondary sun wheel is meshed with the three secondary planet wheels simultaneously, and a center hole of the secondary planet carrier is embedded with a tertiary sun wheel which is connected to the central shaft in a rotating mode.
3. The compact multi-stage planetary reducer of claim 2, wherein: the three-level speed reducing mechanism comprises a three-level planet carrier, four three-level planet wheels are arranged on the right side of the three-level planet carrier in a rotating mode, the four three-level planet wheels are evenly arranged along the circumferential direction of the three-level planet carrier, the four three-level planet wheels are all meshed with the inner gear ring barrel, the three-level sun wheel is meshed with the four three-level planet wheels simultaneously, the outer circle of the three-level planet carrier is connected with the inner wall of the left port of the inner gear ring barrel in a rotating mode through a bearing, and a speed reducing power output shaft is coaxially and fixedly arranged in the center of the left side face of the three-level planet carrier.
4. The compact multi-stage planetary reducer of claim 1, wherein: the right end of the inner gear ring barrel is provided with a positioning end cover, and the center of the positioning end cover is provided with a round hole.
5. The compact multi-stage planetary reducer of claim 3, wherein: the disc thickness of one-level planet carrier, second grade planet carrier and tertiary planet carrier increases in proper order, and the intensity of one-level planet wheel, second grade planet wheel and tertiary planet wheel increases in proper order, and the intensity of second grade sun gear is less than tertiary sun gear.
6. The compact multi-stage planetary reducer of claim 3, wherein: the right flank of second grade sun gear flushes with one-level planet carrier right flank, and the right flank of tertiary sun gear flushes with second grade planet carrier right flank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120331679.8U CN214465964U (en) | 2021-02-05 | 2021-02-05 | Compact multi-stage planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120331679.8U CN214465964U (en) | 2021-02-05 | 2021-02-05 | Compact multi-stage planetary reducer |
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| Publication Number | Publication Date |
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| CN214465964U true CN214465964U (en) | 2021-10-22 |
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| CN202120331679.8U Active CN214465964U (en) | 2021-02-05 | 2021-02-05 | Compact multi-stage planetary reducer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116169827A (en) * | 2022-09-08 | 2023-05-26 | 深圳绿米联创科技有限公司 | Design method of curtain motor and curtain motor transmission mechanism |
| CN118473145A (en) * | 2022-10-13 | 2024-08-09 | 黄河科技学院 | A manual-automatic braking high-torque reduction motor |
-
2021
- 2021-02-05 CN CN202120331679.8U patent/CN214465964U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116169827A (en) * | 2022-09-08 | 2023-05-26 | 深圳绿米联创科技有限公司 | Design method of curtain motor and curtain motor transmission mechanism |
| CN118473145A (en) * | 2022-10-13 | 2024-08-09 | 黄河科技学院 | A manual-automatic braking high-torque reduction motor |
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