CN208535137U - A kind of modified planetary reduction gear - Google Patents
A kind of modified planetary reduction gear Download PDFInfo
- Publication number
- CN208535137U CN208535137U CN201820972260.9U CN201820972260U CN208535137U CN 208535137 U CN208535137 U CN 208535137U CN 201820972260 U CN201820972260 U CN 201820972260U CN 208535137 U CN208535137 U CN 208535137U
- Authority
- CN
- China
- Prior art keywords
- planet carrier
- gear
- bearing
- planetary
- integrally formed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Retarders (AREA)
Abstract
The utility model relates to retarder technical fields, refer in particular to a kind of modified planetary reduction gear, including shell, it is set in the housing the planet carrier in portion, set on the sun gear of planet carrier, with the input shaft of sun gear transmission connection, at least three planetary gears of arrangement are surround along the axis direction of sun gear and are installed in inner walls and are engaged the internal gear of connection with planetary gear, the planetary gear is fixed on planet carrier by fixing axle, further include set on planet carrier upper end and with the integrally formed output shaft of planet carrier, it is opened in planet carrier and accommodation groove corresponding with planetary gear and the bearing set on planet carrier lower end, the inner ring and planet carrier of the bearing are integrally formed, the outer ring of bearing is installed in the inner wall of shell.The inner ring and planet carrier of integrally formed planet carrier and output shaft and integrally formed bearing make the overall structure of retarder save installation step in assembling process, and it is more convenient to assemble, and keeps retarder overall structure more stable, more rigid.
Description
Technical field
The utility model relates to retarder technical fields, refer in particular to a kind of modified planetary reduction gear.
Background technique
The principle of planetary reduction gear is a kind of power transmission mechanism, using the velocity transducer of gear, by the revolution of motor
Number decelerates to desired winding number, and obtains the mechanism of larger torque.The few gear of the number of teeth on planetary reduction gear transmission shaft is nibbled
The gear wheel on output shaft is closed to achieve the purpose that deceleration.
Planet carrier and output shaft are split settings at present, subsequent need to be installed input shaft to planet carrier, complex steps,
It is difficult to for the axis of output shaft being overlapped with the axis of planet carrier in installation process, influences the routine use of planetary reduction gear, and
Planet carrier and bearing are split settings at present, and step needed for not only increasing assembly, assembly efficiency is low, and split settings
It is difficult to meet the structure layout design of the retarder of big output torque, rigidity is poor.
Summary of the invention
The technical problem to be solved by the present invention is to provide the modified planets of a kind of stable structure and high rigidity to subtract
Fast device.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution: a kind of modified planetary reduction gear,
Including shell, the planet carrier that is set in the housing portion, the sun gear set on planet carrier, the input with sun gear transmission connection
Axis, along sun gear axis direction around arrangement at least three planetary gears and be installed in inner walls and with planet tooth
The internal gear of wheel engagement connection, the planetary gear is fixed on planet carrier by fixing axle, further include be set to planet carrier upper end and
And the integrally formed output shaft of planet carrier, be opened in planet carrier and accommodation groove corresponding with planetary gear and be set to planet carrier under
The bearing at end, the inner ring and planet carrier of the bearing are integrally formed, and the outer ring of bearing is installed in the inner wall of shell.
Preferably, the width of the accommodation groove is 20 to 50mm.
Preferably, one end of the input shaft and sun gear are sequentially connected, and the input shaft other end is equipped with shaft coupling.
Preferably, the shell offers oilhole.
The utility model has the beneficial effects that: the utility model provides a kind of modified planetary reduction gear, one at
The planet carrier and output shaft of type, not only effectively ensure the concentricity of planet carrier axis Yu output shaft axis, avoid planetary reduction gear
It is damaged, and processes more convenient, it is more stable to process structure between the planet carrier of formation and output shaft, and rigidity is more
By force；The inner ring and planet carrier of bearing are integrally formed, and the overall structure of retarder is made to save installation step in assembling process, are filled
With more convenient, and the inner ring of integrally formed bearing and planet carrier overall structure are more stable, more rigid, also save
The about cost and material of design, reduces production cost.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model modified planetary reduction gear.
Fig. 2 is the structural schematic diagram at another visual angle of the utility model modified planetary reduction gear.
Fig. 3 is the three-dimensional cross section structure schematic diagram of the part A-A in Fig. 2.
Fig. 4 is the schematic perspective view of internal part in the utility model modified planetary reduction gear.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made further below with reference to embodiment
Bright, the content that embodiment refers to not is the restriction to the utility model.
As shown in Figures 1 to 4, a kind of modified planetary reduction gear, planet carrier 2 including shell 1, inside shell 1,
It is surround set on the sun gear 3 of planet carrier 2, with the input shaft 4 of the transmission connection of sun gear 3, along the axis direction of sun gear 3
Arrangement at least three planetary gears 5 and be installed in 1 inner wall of shell and engage with planetary gear 5 connect internal gear 6, it is described
Planetary gear 5 is fixed on planet carrier 2 by fixing axle 7, further includes set on 2 upper end of planet carrier and integrally formed with planet carrier 2
Output shaft 8 is opened in planet carrier 2 and accommodation groove 9 corresponding with planetary gear 5 and the bearing 10 set on 2 lower end of planet carrier, should
The inner ring 11 and planet carrier 2 of bearing 10 are integrally formed, and the outer ring 12 of bearing 10 is installed in the inner wall of shell 1.
Preferably, the number of the planetary gear 5 is three；The sun gear 3, planetary gear 5 and internal gear 6
Screw thread is perpendicular tooth thread or helical teeth screw thread；First the transmission shaft for the device that need to slow down and input shaft 4 are sequentially connected, when work, needed
The device band driven input shaft 4 of deceleration rotates, and input shaft 4 drives sun gear 3 to rotate at this time, and sun gear 3 drives planet tooth
5 rotation of wheel, planetary gear 5 rotates on internal gear at this time achievees the effect that deceleration, since planetary gear 5 is solid by fixing axle 7
Due to planet carrier 2, i.e., planet carrier 2 is driven to rotate simultaneously when planetary gear 5 rotates, and planet carrier 2 drives output shaft 8 to rotate, from
And achieve the purpose that deceleration.
Integrally formed planet carrier 2 and output shaft 8 not only effectively ensure the coaxial of 2 axis of planet carrier and 8 axis of output shaft
Degree, avoids planetary reduction gear from being damaged, and processing is more convenient, processes structure between the planet carrier 2 of formation and output shaft 8
It is more stable, it is more rigid；The inner ring 11 and planet carrier 2 of bearing 10 are integrally formed, and are assembling the overall structure of retarder
Installation step is saved in the process, and it is more convenient to assemble, and the inner ring 11 of integrally formed bearing 10 and planet carrier 2 are whole
Structure is more stable, more rigid, also saves the cost and material of design, reduces production cost.
In the present embodiment, the width of the accommodation groove is 20 to 50mm.Preferably, the width of accommodation groove 9 is 35mm, makes to go
2 component overall structure of carrier is more stable, more rigid, has both avoided because the width of accommodation groove 9 is excessive, leads to 2 knot of planet carrier
The phenomenon that structure is unstable, is easy to appear fracture also avoids leading to gear assembly and internal gear 6 because the width of accommodation groove 9 is too small
Contact area it is small, the too small phenomenon of reduction ratio occurs.
In the present embodiment, one end of the input shaft 4 and sun gear 3 are sequentially connected, and 4 other end of input shaft is equipped with shaft coupling
Device 13.The effect of shaft coupling 13 is the transmission shaft for coupling input shaft 4 and the device that need to slow down, and is allowed to rotate jointly and pass
Torque delivery, to realize the input for needing deceleration device.
In the present embodiment, the shell 1 offers oilhole 14.It is addition lubrication inside planetary reduction gear by oilhole 14
Oil, so that it is guaranteed that be driven between component inside planetary reduction gear it is sensitive, it is practical.
In the description of the present invention, it should be noted that for the noun of locality, if any term " center ", " laterally
(X) ", " longitudinal (Y) ", " vertical (Z) " " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right",
The indicating positions such as "vertical", "horizontal", "top", "bottom", "inner", "outside", " clockwise ", " counterclockwise " and positional relationship be based on
Orientation or positional relationship shown in the drawings is merely for convenience of narration the utility model and simplifies description, rather than instruction or dark
Showing signified device or element must have a particular orientation, be constructed and operated with particular orientation, should not be understood as limiting this reality
With novel specific protection scope.
In addition, being used for description purposes only if any term " first ", " second ", it is not understood to indicate or imply relatively heavy
The property wanted or the quantity for implicitly indicating technical characteristic." first " is defined as a result, " second " feature can be expressed or implicit include
One or more this feature, in the utility model description, " several " are meant that two or more, unless otherwise bright
It is really specific to limit.
In the present invention, except as otherwise clear stipulaties and restriction, if any term " assembling ", " connected ", " connection " term
It should go to understand as broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It is also possible to machine
Tool connection；It can be directly connected, be also possible to be connected by intermediary, can be and be connected inside two elements.For
For those of ordinary skill in the art, can understand as the case may be above-mentioned term in the present invention specifically contain
Justice.
Several embodiments of the utility model above described embodiment only expresses, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (4)
1. a kind of modified planetary reduction gear including shell (1), is set to shell (1) internal planet carrier (2), set on planet carrier
(2) sun gear (3) is surround with the input shaft (4) of sun gear (3) transmission connection, along the axis direction of sun gear (3)
Arrangement at least three planetary gears (5) and be installed in shell (1) inner wall and engage with planetary gear (5) connect internal gear
(6), the planetary gear (5) is fixed on planet carrier (2) by fixing axle (7), it is characterised in that: further includes being set to planet carrier
(2) upper end and and planet carrier (2) integrally formed output shaft (8), it is opened in planet carrier (2) and corresponding with planetary gear (5)
Accommodation groove (9) and bearing (10) set on planet carrier lower end, the inner ring (11) of the bearing (10) and planet carrier (2) one at
Type, the outer ring (12) of bearing (10) are installed in the inner wall of shell (1).
2. modified planetary reduction gear according to claim 1, it is characterised in that: the width of the accommodation groove (9) is 20
To 50mm.
3. modified planetary reduction gear according to claim 1, it is characterised in that: one end of the input shaft (4) with too
Positive gear (3) transmission connection, input shaft (4) other end are equipped with shaft coupling (13).
4. modified planetary reduction gear according to claim 1, it is characterised in that: the shell (1) offers oilhole
(14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820972260.9U CN208535137U (en) | 2018-06-23 | 2018-06-23 | A kind of modified planetary reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820972260.9U CN208535137U (en) | 2018-06-23 | 2018-06-23 | A kind of modified planetary reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208535137U true CN208535137U (en) | 2019-02-22 |
Family
ID=65393060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820972260.9U Expired - Fee Related CN208535137U (en) | 2018-06-23 | 2018-06-23 | A kind of modified planetary reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208535137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686067A (en) * | 2019-09-29 | 2020-01-14 | 广州弘泽汽车科技有限公司 | Speed reduction connecting structure, motor reduction box and electric tail gate support rod |
-
2018
- 2018-06-23 CN CN201820972260.9U patent/CN208535137U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686067A (en) * | 2019-09-29 | 2020-01-14 | 广州弘泽汽车科技有限公司 | Speed reduction connecting structure, motor reduction box and electric tail gate support rod |
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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: 20190222 Termination date: 20210623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |