CN219045560U - Output structure and speed reducer - Google Patents
Output structure and speed reducer Download PDFInfo
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- CN219045560U CN219045560U CN202320099647.9U CN202320099647U CN219045560U CN 219045560 U CN219045560 U CN 219045560U CN 202320099647 U CN202320099647 U CN 202320099647U CN 219045560 U CN219045560 U CN 219045560U
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Abstract
The utility model discloses an output structure and a speed reducer, which comprise a box body, wherein the box body is a matrix with a through hole; the output shaft penetrates through the through hole, and one end of the output shaft is connected with an output gear; the box cover is fixed on the box body and is an annular piece; the outer ring of the bending sealing ring contacts the inner ring of the box cover and is abutted to the outer end part of the through hole so as to achieve a sealing effect. According to the output structure and the speed reducer, the bending sealing ring is arranged on the annular inner ring of the box cover and is abutted against the outer end part of the through hole, so that the sealing effect is achieved, an oil seal is not required to be arranged between the bending sealing ring and the box body, the bending sealing ring is fixedly connected to the output shaft, the bending sealing ring can rotate along with the output shaft, the creeping distance of grease leakage is increased, and the performance of the output structure is optimized.
Description
Technical Field
The utility model relates to the technical field of power output structures of gearboxes, in particular to an output structure. In addition, the utility model also relates to a speed reducer comprising the output structure.
Background
Along with the stronger and stronger market competition of wind power, the requirements on the reliability and the cost reduction of the yaw pitch gearbox are higher and higher, a traditional yaw pitch gearbox output structure is shown in the attached figure 1, and comprises a box body 1-1, a bearing 1-2, an oil seal 1-3, an end cover 1-4 and an output gear 1-5, wherein the traditional yaw pitch gearbox output structure is generally installed between the end cover 1-4 and the output gear 1-5 by adopting the oil seal 1-3 for sealing. The sealing structure increases the cost due to the oil seals 1-3; moreover, the oil seal 1-3 can cause the overlarge distance from the bearing 1-2 to the gear end face of the output gear 1-5, so that not only is the axial space wasted, but also poor meshing rigidity and unbalanced meshing load of the output gear 1-5 can be caused. Some sealing structures cancel the oil seals 1-3, and the sealing is directly performed by using the cover plate, so that the sealing effect is poor.
In summary, how to optimize the performance of the output structure is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present utility model provides an output structure, in which a bending sealing ring is disposed on an inner ring of an annular case cover, the bending sealing ring is abutted to an outer end portion of a through hole and is fixedly connected to an output shaft, so that the output shaft can drive the bending sealing ring to rotate synchronously, and can perform a sealing function, an oil seal is not required to be disposed between the bending sealing ring and the case, the cost is saved, and the performance of the output structure is optimized.
Another object of the present utility model is to provide a speed reducer including the above output structure.
In order to achieve the above object, the present utility model provides the following technical solutions:
an output structure, comprising:
the box body is a matrix with a through hole;
the output shaft penetrates through the through hole, and one end of the output shaft is connected with an output gear;
the box cover is fixed on the box body and is an annular piece;
the outer ring of the bending sealing ring contacts the inner ring of the box cover and is abutted to the outer end part of the through hole so as to achieve a sealing effect.
Preferably, the case cover is fixed to the case by bolting.
Preferably, a bearing is arranged between the box body and the output shaft.
Preferably, the inner ring of the bearing is fixedly connected with the bending sealing ring, and the inner ring of the bearing is fixedly connected with the output shaft, so that the bearing, the bending sealing ring and the output shaft can synchronously rotate.
Preferably, the bending sealing ring comprises a base and an extending end, the extending end comprises a first axial end formed by extending the edge of the base along the direction perpendicular to the base, and the first axial end is arranged between the box cover and the box.
Preferably, the protruding end further comprises a radial end formed by extending the edge of the first axial end along the radial direction of the output shaft, and the box body is provided with a first groove along the radial direction of the output shaft, wherein the first groove is used for placing the radial end.
Preferably, the protruding end further comprises a second axial end formed by extending the radial end along the extending direction of the first axial end, and the case is provided with a second groove for placing the second axial end.
Preferably, gaps are arranged between the extending end and the first groove and between the extending end and the second groove, and gaps are arranged between the extending end and the box cover.
A speed reducer comprising an output structure, the output structure being any one of the output structures described above.
According to the output structure provided by the utility model, the bending sealing ring is arranged on the inner ring of the annular box cover and is abutted against the outer end part of the through hole, so that the sealing effect can be achieved, an oil seal is not required to be arranged between the bending sealing ring and the box body, the bending sealing ring is fixedly connected with the output shaft, the rotation of the output shaft can drive the rotation of the bending sealing ring, the bending sealing ring is not required to be fixed on the box body, the creeping distance of grease leakage is increased, the sealing effect is better, and the performance of the output structure is optimized.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art yaw pitch gearbox output structure;
FIG. 2 is a schematic diagram of an output structure according to the present utility model;
fig. 3 is a schematic structural diagram of a portion a of the output structure provided by the present utility model.
In fig. 1:
1-1 is a box body, 1-2 is a bearing, 1-3 is an oil seal, 1-4 is an end cover, and 1-5 is an output gear;
fig. 2 and 3:
1 is a box body, 2 is an output shaft, 3 is an output gear, 4 is a box body cover, 5 is a bending sealing ring, 6 is a bearing, 7 is a first axial end, 8 is a radial end, and 9 is a second axial end.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The core of the utility model is to provide an output structure which has better performance.
Another core of the present utility model is to provide a speed reducer including the above-described output structure.
Referring to fig. 2 and fig. 3, fig. 2 is an output structure provided in the present application, including: the box body 1, the output shaft 2, the box body cover 4 and the bending sealing ring 5, wherein the box body 1 is a matrix with a through hole; the output shaft 2 penetrates through the through hole, and one end of the output shaft 2 is connected with an output gear 3; the box cover 4 is fixed on the box 1, and the box cover 4 is an annular piece; the bending sealing ring 5 is fixedly connected to the output shaft 2, and the outer ring of the bending sealing ring 5 contacts the inner ring of the box cover 4 and abuts against the outer end part of the through hole so as to achieve a sealing effect.
Specifically, box 1 is equipped with the through-hole that runs through box 1, output shaft 2 runs through the through-hole and output shaft 2's one end is connected with output gear 3, be equipped with annular box lid 4 between box 1 and the output gear 3, be equipped with at the inner ring of box lid 4 and buckle sealing ring 5, the outer lane of buckling sealing member 5 contacts the inner ring of box lid 4, thereby buckle sealing ring 5 butt plays sealed effect in the outer end of the through-hole of box 1, buckle sealing ring 5's inner ring fixed connection is in output shaft 2, output shaft 2's rotation can drive buckle sealing ring 5's rotation, thereby need not to set up the oil blanket between buckling sealing ring 5 and box 1, box lid 4 and output shaft 2's fixed connection can fix the position of box lid 4, need not to buckle sealing ring 5 and be fixed in box 1 through the mounting, and the creep distance when having increased the grease leakage, output structure's performance has been optimized.
On the basis of the above embodiment, the case cover 4 is fixed to the case 1 by bolting.
Specifically, the box cover 4 is fixed to the box 1 through the mode of bolting, so that falling of the box cover 4 can be effectively prevented, the box cover 4 can play a certain role in obstructing grease leakage, and the box cover 4 can be detached when maintenance and cleaning are required to be performed inside the box 1.
In addition, the counter bore is arranged on the box cover 4, so that the surface of the box cover 4 is not protruded after the installation of the screw is finished, and the space is saved.
In some embodiments, a bearing 6 is provided between the housing 1 and the output shaft 2.
Specifically, set up bearing 6 between box 1 and the output shaft 2, play and support output shaft 2 and can reduce the coefficient of friction in the output shaft 2 rotation process, and need not the oil blanket between bearing 6 and the box lid 4, reduced the oil blanket number, the cost is reduced.
On the basis of the embodiment, the inner ring of the bearing 6 is fixedly connected with the bending sealing ring 5, and the inner ring of the bearing 6 is fixedly connected with the output shaft 2, so that the bearing 6, the bending sealing ring 5 and the output shaft 2 can synchronously rotate.
Specifically, the bending sealing ring 5 is fixedly connected with the output shaft 2, the inner ring of the bearing 6 is fixedly connected with the bending sealing ring 5, and the inner ring of the bearing 6 is fixed on the output shaft 2, so that the bearing 6 can synchronously rotate with the bending sealing ring 5 and the output shaft 2, an oil seal is not required to be independently arranged between the bearing 6 and the output shaft 2, the number of the oil seals is reduced, and the cost is reduced.
In some embodiments, the bending seal ring 5 comprises a base and an extension end, the extension end comprises a first axial end 7 formed by extending an edge of the base along a direction perpendicular to the base, and the first axial end 7 is arranged between the case cover 4 and the case 1.
Specifically, the bending sealing ring 5 comprises a base and an extending end, the extending end comprises a first axial end 7, the first axial end 7 is arranged between the box body 1 and the box body cover 4, the box body cover 4 is arranged at the lower part of the box body 1 when the output structure is used, the box body 1 can be used for sealing through the extrusion of the box body 1 to the box body cover 4, the crawling distance of lubricating grease can be increased through the extending end, and the sealing effect is achieved on the lubricating grease in the axial direction.
On the basis of the above embodiment, the protruding end further comprises a radial end 8 formed by extending the edge of the first axial end 7 in the radial direction of the output shaft 2, and the case 1 is provided with a first groove in the radial direction of the output shaft 2, where the first groove is used for placing the radial end 8.
Specifically, the extending end further comprises a radial end 8, and the radial end 8 is an end part formed by extending the first axial end 7 along the radial direction of the output shaft 2, is arranged between the box cover 4 and the box 1, and can play a role in sealing lubricating grease in the radial direction.
On the basis of the above embodiment, the protruding end further comprises a second axial end 9, which is formed by extending the radial end 8 in the extension direction of the first axial end 7, and the casing 1 is provided with a second recess for placing the second axial end 9.
Specifically, the extending end further comprises a second axial end 9 formed by extending the radial end 8 along the extending direction of the first axial end 7, the first axial end 7 and the second axial end 9 can play a sealing role on grease along the axial direction of the output shaft 2, the grease is prevented from leaking, and the box 1 is provided with a second groove for preventing the second axial end 9, so that the second axial end 9 can rotate synchronously with the output shaft 2 in the second groove.
On the basis of the embodiment, gaps are arranged between the extending end and the first groove and between the extending end and the second groove, and gaps are arranged between the extending end and the box cover 4.
Specifically, the extending end is in small clearance fit with the first groove, the second groove and the box cover 4, and the clearance amount can ensure that the bending sealing ring 5 does not interfere with the box 1 and the box cover 4 when rotating along with the output shaft 2.
In addition to the above output structure, the present utility model further provides a speed reducer including the output structure disclosed in the above embodiment, and the structure of each other portion of the speed reducer is referred to the prior art, and is not repeated herein.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The output structure and the speed reducer provided by the utility model are described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (9)
1. An output structure, comprising:
the box body (1) is a matrix with a through hole;
the output shaft (2) penetrates through the through hole, and one end of the output shaft (2) is connected with an output gear (3);
the box body cover (4) is fixed on the box body (1), and the box body cover (4) is an annular piece;
and the bending sealing ring (5) is fixedly connected with the output shaft (2), and the outer ring of the bending sealing ring (5) is contacted with the inner ring of the box cover (4) and is abutted to the outer end part of the through hole so as to realize a sealing effect.
2. The output structure according to claim 1, characterized in that the case cover (4) is fixed to the case (1) by bolting.
3. The output structure according to claim 1, characterized in that a bearing (6) is provided between the housing (1) and the output shaft (2).
4. An output structure according to claim 3, characterized in that the inner ring of the bearing (6) is fixedly connected with the bending sealing ring (5), and the inner ring of the bearing (6) is fixedly connected with the output shaft (2), so that the bearing (6) can synchronously rotate with the bending sealing ring (5) and the output shaft (2).
5. The output structure according to claim 1, characterized in that the bending sealing ring (5) comprises a base and an extending end, the extending end comprises a first axial end (7) formed by extending an edge of the base along a direction perpendicular to the base, and the first axial end (7) is arranged between the box cover (4) and the box (1).
6. The output structure according to claim 5, characterized in that said protruding end further comprises a radial end (8) formed by the edge of a first axial end (7) extending in the radial direction of said output shaft (2), said casing (1) being provided with a first groove in the radial direction of said output shaft (2) for housing said radial end (8).
7. The output structure according to claim 6, characterized in that said protruding end further comprises a second axial end (9) of said radial end (8) extending along the extension of said first axial end (7), said casing (1) being provided with a second recess for the placement of said second axial end (9).
8. The output structure according to claim 7, wherein a gap is provided between the protruding end and the first and second grooves, and a gap is provided between the protruding end and the case cover (4).
9. A speed reducer comprising an output structure, wherein the output structure is the output structure according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320099647.9U CN219045560U (en) | 2023-02-02 | 2023-02-02 | Output structure and speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320099647.9U CN219045560U (en) | 2023-02-02 | 2023-02-02 | Output structure and speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219045560U true CN219045560U (en) | 2023-05-19 |
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ID=86320863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320099647.9U Active CN219045560U (en) | 2023-02-02 | 2023-02-02 | Output structure and speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219045560U (en) |
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2023
- 2023-02-02 CN CN202320099647.9U patent/CN219045560U/en active Active
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