CN218625267U - Planetary transmission gear box and sun gear boss limiting floating transmission structure - Google Patents
Planetary transmission gear box and sun gear boss limiting floating transmission structure Download PDFInfo
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- CN218625267U CN218625267U CN202223332902.4U CN202223332902U CN218625267U CN 218625267 U CN218625267 U CN 218625267U CN 202223332902 U CN202223332902 U CN 202223332902U CN 218625267 U CN218625267 U CN 218625267U
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- planet carrier
- sun gear
- boss
- transmission structure
- distance ring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a spacing transmission structure that floats of planetary transmission gear box and sun gear boss relates to gear box technical field, and the spacing transmission structure that floats of sun gear boss includes sun gear, planet carrier and distance ring. Wherein, the distance ring sets up in the tip of planet carrier, and the sun gear is equipped with the internal spline to with the external spline meshing of planet carrier, and sun gear and planet carrier coaxial setting, the position that is close to the tip of the hole of sun gear is equipped with annular boss, the distance ring global, the position that is close to the planet carrier be equipped with annular groove, annular boss along axially mobilizable joint in annular groove. The limiting floating transmission structure for the boss of the sun wheel is arranged at the end part of the sun wheel, is simple in structure, convenient to manufacture and install, low in manufacturing and maintenance cost and strong in bearing capacity.
Description
Technical Field
The utility model relates to a gear box technical field, more specifically says, relates to a spacing transmission structure that floats of sun gear boss. Furthermore, the utility model discloses still relate to a planetary transmission gear box including the spacing transmission structure that floats of above-mentioned sun gear boss.
Background
The wind power gear box in the wind generating set is an important mechanical component, and the main function of the wind power gear box is to transmit the power generated by the wind wheel under the action of wind power to the generator and enable the generator to obtain corresponding rotating speed.
Wind-powered electricity generation gear box commonly used is the planetary transmission gear box, and usually, the planetary transmission structure comprises planet carrier, planet wheel and sun gear, and wherein the sun gear passes through the spline meshing with the planet carrier of next stage and transmits power, and the rotatable installation of sun gear adopts movable axial positioning afterwards to the spline can be followed the axial and is predetermine the within range activity, and common movable axial positioning structure is jump ring, mechanical connection etc. but the structure is complicated, and installation operation process is loaded down with trivial details, needs specific instrument even.
In summary, how to simplify the installation operation is an urgent problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a spacing transmission structure that floats of sun gear boss, this spacing transmission structure that floats of sun gear boss is simple, is convenient for make and install, and it is lower to make and the maintenance cost, and bearing capacity is strong.
Another object of the utility model is to provide a planetary transmission gear box of including the spacing transmission structure that floats of above-mentioned sun gear boss.
In order to achieve the above object, the present invention provides the following technical solutions:
a spacing transmission structure that floats of sun gear boss includes: sun gear, planet carrier and distance ring, the distance ring sets up in the tip of planet carrier, the sun gear is equipped with internal spline, and with the external spline meshing of planet carrier, just the sun gear with the planet carrier is coaxial to be set up, the position that is close to the tip of the hole of sun gear is equipped with annular boss, the distance ring global, be close to the position of planet carrier is equipped with the annular groove, annular boss along axially mobilizable joint in the annular groove.
Preferably, a wear-resistant gasket is arranged between the end face of the annular boss and the end face of the planet carrier, so that the abrasion of the annular boss on the planet carrier is reduced.
Preferably, the end face of the wear-resistant gasket is provided with a boss, the end face of one end, provided with the distance ring, of the planet carrier is provided with a groove, and the boss is embedded in the groove.
Preferably, the distance ring the wear-resisting gasket all is equipped with the through-hole that is used for the installation, the planet carrier is equipped with the screw hole, the bolt pass the through-hole with the screw hole is connected.
Preferably, the root of the annular boss is a fillet.
Preferably, the planet carrier is provided with a central through hole.
A planetary transmission gearbox comprises the sun gear boss limiting floating transmission structure provided by any one of the above items.
The utility model provides a sun gear boss limiting floating transmission structure, the sun gear is provided with an internal spline, and an annular boss is arranged at the position close to the end part in an inner hole of the sun gear; the planet carrier is provided with an external spline, the rotation of the sun gear drives the planet carrier to rotate coaxially with the sun gear, and the external spline of the planet carrier is meshed with the internal spline of the sun gear, so that the power transmission can be realized; the distance ring is arranged at the end part of the planet carrier, an annular groove is arranged on the circumferential surface of the position, close to the planet carrier, of the distance ring, and the annular groove is communicated with the end face of the end, provided with the annular groove, of the distance ring.
The assembling process is as follows, insert the hole of sun gear with the planet carrier, make the internal spline of sun gear and the external spline meshing of planet carrier, then place the distance ring at the tip of planet carrier, and in annular boss embedding annular groove, and then fix the distance ring at the tip of planet carrier.
When the sun gear is used, the annular boss moves in the annular groove along the axial direction, the end face of the annular groove is combined with the end face of the planet carrier, the axial limiting of the sun gear is achieved, and the end face of the annular boss is in contact with the end face of the planet carrier to transmit axial force. The limiting floating transmission structure for the boss of the sun wheel is arranged at the end part of the sun wheel, is simple in structure, convenient to manufacture and install, low in manufacturing and maintenance cost and strong in bearing capacity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a specific embodiment of a sun gear boss limiting floating transmission structure provided by the present invention;
fig. 2 is a partially enlarged schematic view of an embodiment of the present invention.
In fig. 1 and 2, reference numerals include:
the structure comprises a sun gear 1, an annular boss 11, a planet carrier 2, a groove 21, a distance ring 3, an annular groove 31, a wear-resistant gasket 4 and a boss 41.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a spacing transmission structure that floats of sun gear boss, this spacing transmission structure that floats of sun gear boss is simple, is convenient for make and install, and it is lower to make and the maintenance cost, and bearing capacity is strong. The other core of the utility model is to provide a planetary transmission gear box comprising the above-mentioned spacing transmission structure that floats of sun gear boss.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural view of a specific embodiment of a sun gear boss limiting floating transmission structure provided by the present invention; fig. 2 is a partially enlarged schematic view of an embodiment of the present invention.
The utility model provides a spacing transmission structure that floats of sun gear boss, including sun gear 1, planet carrier 2 and distance ring 3, distance ring 3 sets up in the tip of planet carrier 2, and sun gear 1 is equipped with the internal spline to with the external splines meshing of planet carrier 2, and sun gear 1 and the coaxial setting of planet carrier 2, the position that is close to the tip of the hole of sun gear 1 is equipped with annular boss 11, distance ring 3 global, the position that is close to planet carrier 2 is equipped with annular groove 31, annular boss 11 along the mobilizable joint in annular groove 31 of axial.
Specifically, the sun gear 1 is provided with an internal spline, and an annular boss 11 is arranged in the inner hole of the sun gear 1 and close to the end part; the planet carrier 2 is provided with an external spline, the rotation of the sun gear 1 drives the planet carrier 2 to coaxially rotate with the sun gear, and the external spline of the planet carrier 2 is meshed with the internal spline of the sun gear 1, so that the power transmission can be realized; the distance ring 3 is arranged at the end of the planet carrier 2, an annular groove 31 is arranged on the circumferential surface of the distance ring 3 close to the planet carrier 2, and the annular groove 31 is communicated with the end surface of the end of the distance ring 3, which is provided with the annular groove 31.
The assembly process is as follows, insert planet carrier 2 into the hole of sun gear 1, make the internal spline of sun gear 1 and the external spline meshing of planet carrier 2, then place distance ring 3 in the tip of planet carrier 2, and annular boss 11 imbeds in annular groove 31, and then fixes distance ring 3 at the tip of planet carrier 2. After the assembly is completed, as shown in fig. 1 and fig. 2, the annular boss 11 is embedded inside the annular groove 31, and it should be noted that the cross-sectional shapes of the annular boss 11 and the annular groove 31 are not limited as long as the annular boss 11 is embedded inside the annular groove 31 after the assembly.
During the use, annular boss 11 moves along the axial in annular groove 31, and the terminal surface of annular groove 31 and the terminal surface combination of planet carrier 2 realize spacing the axial of sun gear 1, and the terminal surface contact of annular boss 11 and planet carrier 2 can transmit axial force. The limiting floating transmission structure for the boss of the sun wheel is arranged at the end part of the sun wheel 1, is simple in structure, convenient to manufacture and install, low in manufacturing and maintenance cost and strong in bearing capacity.
Furthermore, the annular boss 11 and the internal spline of the sun gear 1 are both arranged in the inner hole of the sun gear 1, and the annular boss 11 can be hardened while the internal spline of the sun gear 1 is hardened, so that the stability and the bearing capacity of the limiting floating transmission structure of the sun gear boss are improved.
On the basis of the above embodiment, a wear-resistant gasket 4 is arranged between the end surface of the annular boss 11 and the end surface of the planet carrier 2 to reduce the wear of the annular boss 11 on the planet carrier 2.
Specifically, the wear-resistant pad 4 is disposed between the end face of the annular boss 11 and the end face of the planet carrier 2, and as shown in fig. 1 and fig. 2, the annular boss 11 moves rightwards in the annular groove 31, and finally the end face of the annular boss 11 abuts against the end face of the wear-resistant pad 4.
Preferably, the circumferential surface of the end part of the installation distance ring 3 of the planet carrier 2 is provided with an installation groove, the wear-resistant gasket 4 is sleeved on the planet carrier 2, the wear-resistant gasket 4 is limited not to leave a preset position along with the movement of the sun gear 1 or the planet carrier 2, and the wear-resistant gasket 4 is ensured to be always in action.
When the sun gear is used, the annular boss 11 moves axially in the annular groove 31, and the wear-resistant gasket 4 is arranged between the end face of the annular boss 11 and the end face of the planet carrier 2, so that the end face of the annular groove 31 is combined with the end face of the wear-resistant gasket 4 to realize axial limiting of the sun gear 1, and the end face of the annular boss 11 is in contact with the wear-resistant gasket 4, and the wear-resistant gasket 4 is in contact with the end face of the planet carrier 2 to transmit axial force; because no matter the sun gear 1 axially moves or circumferentially rotates, the annular boss 11 is directly contacted with the wear-resistant gasket 4, and then the wear-resistant gasket 4 is directly contacted with the planet carrier 2, the abrasion to the planet carrier 2 in the movement process of the sun gear 1 can be reduced.
Further, the diameter of the wear-resistant gasket 4 is increased, and the area of the end face, in contact with the wear-resistant gasket 4, of the annular boss 11 is increased, so that the stability and the bearing capacity of the sun wheel boss limiting floating transmission structure are improved.
In addition to the above embodiments, the end surface of the wear-resistant pad 4 is provided with the boss 41, the end surface of the planet carrier 2 at the end where the distance ring 3 is installed is provided with the groove 21, and the boss 41 is embedded in the groove 21.
Specifically, a boss 41 is arranged on one end face of the wear-resistant gasket 4, a groove 21 is formed in the end face of the end, where the distance ring 3 is installed, of the planet carrier 2, during assembly, the boss 41 of the wear-resistant gasket 4 is inserted into the groove 21 of the planet carrier 2, so that the installation position of the wear-resistant gasket 4 is positioned, the wear-resistant gasket 4 is limited not to move randomly in the radial direction, and the function of reducing wear due to the fact that the wear-resistant gasket 4 is arranged between the end face of the annular boss 11 and the end face of the planet carrier 2 all the time is ensured. It should be noted that the cross-sectional shapes, lengths, etc. of the boss 41 of the wear-resistant pad 4 and the groove 21 of the carrier 2 are not limited as long as the function of the wear-resistant pad 4 can be achieved.
On the basis of the above embodiment, the distance ring 3 and the wear-resistant gasket 4 are both provided with through holes for installation, the planet carrier 2 is provided with threaded holes, and bolts penetrate through the through holes to be connected with the threaded holes.
Specifically, distance ring 3 and wear-resisting gasket 4 are equipped with the through-hole, and planet carrier 2 is equipped with the screw hole, and the central line collineation of above-mentioned through-hole central line and screw hole, during the installation, arrange wear-resisting gasket 4 in planet carrier 2's tip, place distance ring 3 in wear-resisting gasket 4's outside again, and above-mentioned through-hole, screw hole collineation, then screw into the screw hole with the bolt and screw up to install wear-resisting gasket 4 and distance ring 3 above planet carrier 2. The bolt is used for mounting and connecting tightly, and is convenient to mount or dismount for maintenance.
On the basis of any one of the above embodiments, the root of the annular boss 11 is rounded. Specifically, as shown in fig. 2, the root of the annular boss 11 is processed to form a fillet, which can reduce stress concentration and improve the fatigue resistance of the annular boss 11, thereby improving the service life of the annular boss 11 and reducing the cost.
On the basis of any of the above embodiments, the planet carrier 2 is provided with a central through hole. Specifically, planet carrier 2 is equipped with the external splines with the internal spline meshing of sun gear 1, sets up the through-hole in planet carrier 2's rotation center pin's position, and satisfies the transmission strength requirement to reduce the dead weight, improve the moment of torsion, and reduce material and processing cost. Moreover when this spacing transmission structure that floats of sun gear boss is applied to the wind-powered electricity generation gear box, be convenient for lay the cable at the central through-hole of planet frame 2.
In addition to the above, the present invention further provides a planetary transmission gear box including the sun gear boss spacing floating transmission structure disclosed in the above embodiments, and the structure of other parts of the planetary transmission gear box refers to the prior art, which is not described herein again.
It should be noted that the terms "top, bottom" and "upper, lower, left and right" are defined based on the drawings.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above that the utility model provides a spacing transmission structure that floats of planetary transmission gear box and sun gear boss has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.
Claims (7)
1. The utility model provides a spacing transmission structure that floats of sun gear boss which characterized in that includes: sun gear (1), planet carrier (2) and distance ring (3), distance ring (3) set up in the tip of planet carrier (2), sun gear (1) is equipped with the internal spline, and with the external spline meshing of planet carrier (2), just sun gear (1) with planet carrier (2) coaxial setting, the position that is close to the tip of the hole of sun gear (1) is equipped with annular boss (11), the distance ring (3) global, be close to the position of planet carrier (2) is equipped with annular groove (31), annular boss (11) along axial mobilizable joint in annular groove (31).
2. The sun gear boss limiting floating transmission structure according to claim 1, characterized in that a wear-resistant gasket (4) is arranged between the end face of the annular boss (11) and the end face of the planet carrier (2) to reduce the abrasion of the annular boss (11) to the planet carrier (2).
3. The sun wheel boss limiting floating transmission structure according to claim 2, characterized in that a boss (41) is arranged on the end face of the wear-resistant gasket (4), a groove (21) is arranged on the end face of the planet carrier (2) where one end of the distance ring (3) is installed, and the boss (41) is embedded in the groove (21).
4. The sun gear boss limiting floating transmission structure according to claim 3, wherein the distance ring (3) and the wear-resisting gasket (4) are provided with through holes for installation, and the planet carrier (2) is provided with threaded holes through which bolts pass to be connected with the threaded holes.
5. The sun wheel boss limiting floating transmission structure according to any one of claims 1 to 4, wherein the root of the annular boss (11) is a rounded corner.
6. The sun gear boss limiting floating transmission structure according to any one of claims 1 to 4, wherein the planet carrier (2) is provided with a central through hole.
7. An epicyclic gearbox comprising a sun boss-limiting floating drive according to any of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223332902.4U CN218625267U (en) | 2022-12-13 | 2022-12-13 | Planetary transmission gear box and sun gear boss limiting floating transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223332902.4U CN218625267U (en) | 2022-12-13 | 2022-12-13 | Planetary transmission gear box and sun gear boss limiting floating transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218625267U true CN218625267U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223332902.4U Active CN218625267U (en) | 2022-12-13 | 2022-12-13 | Planetary transmission gear box and sun gear boss limiting floating transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218625267U (en) |
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2022
- 2022-12-13 CN CN202223332902.4U patent/CN218625267U/en active Active
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