CN218670431U

CN218670431U - Yaw gear box output end structure and yaw gear box

Info

Publication number: CN218670431U
Application number: CN202223530569.8U
Authority: CN
Inventors: 张双亚; 陈可; 袁吉; 伍艺; 吴德才; 唐雅婧
Original assignee: Chongqing Gearbox Co Ltd
Current assignee: Chongqing Gearbox Co Ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-03-21
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a driftage gear box output end structure and driftage gear box, driftage gear box output end structure include planet carrier and output shaft, and on the output shaft was located to the planet carrier cover to through planet carrier internal spline and output shaft external splines cooperation be connected, the tip of the external splines of output shaft is equipped with the axle journal tip, and the diameter of axle footpath tip is less than the diameter of external splines, and axle footpath tip cover is equipped with the retaining ring, and retaining ring and planet carrier joint. No matter whether the diameters of the internal spline of the planet carrier and the external spline of the output shaft are changed or not, the retainer ring plays a role in limiting the axial movement of the output shaft, so that the strength requirements of the gear box on the gear and the shaft under the condition of limited overall dimension can be met by increasing the diameters of the planet carrier and the output shaft spline, the axial dimension of the output shaft is prevented from being long, and the structure compactness is improved.

Description

Yaw gear box output end structure and yaw gear box

Technical Field

The utility model relates to a gear box technical field, more specifically say, relate to a yaw gear box output end structure. Furthermore, the utility model discloses still relate to a driftage gear box including above-mentioned driftage gear box output end structure.

Background

The yaw gearbox is used as a speed reducer, a multi-stage planetary transmission structure is adopted, and the yaw gearbox is high in bearing capacity, compact in structure and large in transmission ratio. As shown in fig. 1, the output end structure of the existing yaw gearbox includes a planet wheel 01, a bearing 02, a planet carrier 03, a sun wheel 04, and an output shaft 07; planet wheel 01 passes through bearing 02 to be installed on planet carrier 03, and sun gear 04 and planet carrier 03 meshing, planet carrier 03 internal spline and output shaft 07 external spline fit connection, and output shaft 07's up end is equipped with the backup pad 05 of restriction its axial motion, and backup pad 05 upper end is equipped with the jump ring 06 of restriction its axial motion, and backup pad 05 and jump ring 06 are spacing to planet carrier 03.

Because the planet carrier 03 is connected with the output shaft 07 through the spline, the size of the spline in the planet carrier 03 is limited and cannot exceed the maximum outer diameter size of the support plate 05, so that under the condition that the overall dimension of the gear box is limited, the length of the spline needs to be increased to ensure the strength requirement of the gear and the shaft, the axial dimension of the output shaft is longer, the structure is not compact, and the waste of the box body space is large.

In summary, how to improve the compactness of the structure while meeting the requirement of strength design is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a driftage gear box output end structure, this structure can improve compact structure degree under the condition that satisfies intensity design requirement.

Another object of the utility model is to provide a driftage gear box including above-mentioned driftage gear box output structure.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a driftage gear box output end structure, includes planet carrier and output shaft, the planet carrier cover is located on the output shaft, and pass through planet carrier internal spline with the outer spline fit connection of output shaft, the tip of the outer spline of output shaft is equipped with the axle journal tip, the diameter of axle footpath tip is less than the diameter of outer spline, axle footpath tip cover is equipped with the retaining ring, just the retaining ring with the planet carrier joint.

Preferably, the planet carrier is close to axle journal tip department is equipped with the heavy platform of ladder, the retaining ring is T shape retaining ring, the step face of T shape retaining ring support in the ladder face of the heavy platform of ladder.

Preferably, a clamp spring is arranged at the upper end of the retainer ring and clamped in a clamping groove at the end part of the shaft neck.

Preferably, the periphery of the output shaft is provided with a round nut used for axially limiting the planet carrier.

Preferably, a stop washer is arranged between the round nut and the lower end face of the planet carrier to prevent the round nut from loosening.

Preferably, the planet carrier is provided with a planet wheel, the planet wheel and the planet carrier are in transmission connection, the planet wheel is in transmission connection with a sun wheel, and the end face of the sun wheel is in contact with the end face of the output shaft.

A yaw gearbox comprising a yaw gearbox output structure, the yaw gearbox output structure being any one of the yaw gearbox output structures described above.

Compared with the prior art, the utility model provides a driftage gear box output structure, including planet carrier and output shaft, the planet carrier cover is located on the output shaft to be connected through planet carrier internal spline and the outer spline fit of output shaft, the tip of the outer spline of output shaft is equipped with the diameter of axle tip, and the diameter of axle tip is less than the diameter of outer spline, and the diameter of axle tip cover is equipped with the retaining ring, and retaining ring and planet carrier joint.

Above-mentioned structure, the tip of the external splines of output shaft is equipped with the axle journal tip, the diameter of axle diameter tip 19 is less than the diameter of external splines, axle journal tip outer wall is located to the retaining ring cover, and retaining ring and planet carrier joint, no matter the diameter of planet carrier internal splines and output shaft external splines changes or not, the retaining ring all plays the effect of the axial displacement of restriction output shaft, therefore, accessible increase planet carrier and output shaft spline diameter, satisfy the gear box in the limited condition of overall dimension to the intensity requirement of tooth and axle, thereby avoid the axial dimensions of output shaft longer, in order to realize the purpose that improves compact structure degree.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art 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 diagram of a prior art structure;

fig. 2 is a schematic structural view of an output end structure of a yaw gearbox provided by the present invention.

In fig. 1 and 2:

a planet wheel 01, a bearing 02, a planet carrier 03, a sun wheel 04, a support plate 05, a snap spring 06 and an output shaft 07;

11 is a planet wheel, 12 is a bearing, 13 is a planet carrier, 14 is a sun wheel, 15 is a retainer ring, 16 is a snap spring, 17 is an output shaft, 18 is a round nut, and 19 is an end part of the shaft diameter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 driftage gear box output end structure, this structure can improve compact structure degree under the condition that satisfies intensity design requirement.

The utility model discloses a another core provides a driftage gear box including above-mentioned driftage gear box output end structure.

It should be noted that the yaw gearbox adopts a multi-stage planetary transmission structure form, and includes planet wheel 11, bearing 12, planet carrier 13, sun gear 14 and output shaft 17, and planet carrier 13 is located on output shaft 17, and fixed mounting has bearing 12 on planet carrier 13, and planet wheel 11 is installed on planet carrier 13 through bearing 12, and planet wheel 11 and sun gear 14 mesh.

Please refer to fig. 2, fig. 2 is a structure of an output end of a yaw gearbox provided by the present application, which includes a planet carrier 13 and an output shaft 17, wherein the planet carrier 13 is sleeved on the output shaft 17 and is connected with an external spline of the output shaft 17 through an internal spline of the planet carrier 13 in a matching manner, an end of the external spline of the output shaft 17 is provided with a shaft diameter end 19, a diameter of the shaft diameter end 19 is smaller than a diameter of the external spline, the shaft diameter end 19 is sleeved with a retainer ring 15, and the retainer ring 15 is clamped with the planet carrier 13.

Specifically, the end of the external spline of the output shaft 17 is provided with a shaft diameter end 19, the diameter of the shaft diameter end 19 is smaller than that of the external spline, the shaft diameter end 19 is sleeved with the retainer ring 15, and the retainer ring 15 is clamped with the planet carrier 13, so that the retainer ring 15 plays a role in limiting the axial movement of the output shaft 17 no matter whether the diameters of the internal spline of the planet carrier 13 and the external spline of the output shaft 17 are changed or not, the diameter of the splines of the planet carrier 13 and the output shaft 17 can be increased, the strength requirements of the gear box on the gear and the shaft under the condition that the external dimension is limited are met, the axial dimension of the output shaft 17 is prevented from being long, and the structure compactness is improved.

Alternatively, the above structure may include the sun gear 14, or other transmission structure as required.

On the basis of the above embodiment, the planet carrier 13 is provided with a step sinking platform near the journal end 19, the retainer ring 15 is a T-shaped retainer ring, and the step surface of the T-shaped retainer ring abuts against the step surface of the step sinking platform. Specifically, 19 outer walls of the shaft neck end portions are sleeved with the inner side walls of the T-shaped check rings, stepped sinking platforms are arranged at the inner walls of the planet carriers 13 between the planet carriers 13 and the shaft neck end portions 19, and stepped surfaces of the T-shaped check rings abut against stepped surfaces of the stepped sinking platforms so as to limit axial movement of the planet carriers 13 and further limit axial movement of the output shafts 17, and assembly efficiency is improved.

On the basis of the above embodiment, in order to limit the axial movement of the retainer ring 15, the upper end of the retainer ring 15 is provided with the snap spring 16, and the snap spring 16 is snapped in the snap groove of the end portion 19 of the shaft neck, so that the snap spring 16 limits the axial displacement of the retainer ring 15, and thus the snap spring 16 and the retainer ring 15 cooperate to limit the axial movement of the output shaft 17, and the operation safety is improved.

Alternatively, other structures for limiting movement may be provided in addition to the circlip 16.

In addition to the above embodiment, the lower end of the carrier 13 is provided with the round nut 18 for axially limiting the position of the carrier, and the round nut 18 is fixedly provided on the outer periphery of the output shaft 17, so as to limit the axial movement of the carrier 13. Specifically, the circular nut 18 is sleeved on the output shaft 17, and pretightening force is applied to the planet carrier 13 in the axial direction through the circular nut 18 so as to abut against the planet carrier 13, thereby limiting the axial position of the planet carrier 13.

In addition to the above embodiments, a stopper washer is provided between the round nut 18 and the lower end surface of the carrier 13 to prevent the round nut 18 from loosening. Specifically, the automatic gasket is installed in the groove of the round nut 18, and after the round nut 18 is fastened, the stop gasket is fixed between the round nut 18 and the lower end face of the planet carrier 13, so as to prevent the round nut 18 and the lower end face of the planet carrier 13 from loosening.

On the basis of the above embodiment, the planet carrier 13 is provided with the planet wheel 11, the planet wheel 11 and the sun wheel 14 are in transmission connection, the end surface of the sun wheel 14 is in contact with the end surface of the output shaft 17, and a space compact arrangement is formed.

Except the above-mentioned driftage gear box output end structure, the utility model discloses still provide a driftage gear box including the disclosed driftage gear box output end structure of above-mentioned embodiment, this other each partial structure please refer to prior art, no longer repeated herein.

The embodiments in the present description 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 the utility model provides a yaw gear box output end structure and yaw gear box have carried out 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 protection scope of the appended claims.

Claims

1. The utility model provides a driftage gear box output end structure, includes planet carrier (13) and output shaft (17), its characterized in that, planet carrier (13) cover is located on output shaft (17), and pass through the internal spline of planet carrier (13) with the external spline cooperation of output shaft (17) is connected, the tip of the external spline of output shaft (17) is equipped with axle diameter tip (19), the diameter of axle diameter tip (19) is less than the diameter of external spline, axle diameter tip (19) cover is equipped with retaining ring (15), just retaining ring (15) with planet carrier (13) joint.

2. The output end structure of the yaw gearbox of claim 1, wherein a stepped sinking platform is arranged on the planet carrier (13) and close to the shaft diameter end (19), the retainer ring (15) is a T-shaped retainer ring, and the stepped surface of the T-shaped retainer ring abuts against the stepped surface of the stepped sinking platform.

3. The output end structure of the yaw gearbox is characterized in that a clamp spring (16) is arranged at the upper end of the retainer ring (15), and the clamp spring (16) is clamped in a clamping groove of the shaft diameter end part (19).

4. A yaw gearbox output end structure according to any of claims 1 to 3, characterized in that the outer circumference of the output shaft (17) is provided with a round nut (18) for axially limiting the planet carrier (13).

5. A yaw gearbox output end structure according to claim 4, characterized in that a stop washer is arranged between the round nut (18) and the lower end surface of the planet carrier (13) to prevent the round nut (18) from loosening.

6. A yaw gearbox output end structure according to any of claims 1 to 3, characterized in that the planet carrier (13) is provided with planet wheels (11), both in driving connection, the planet wheels (11) being in driving connection with a sun wheel (14), the end surface of the sun wheel (14) being in contact with the end surface of the output shaft (17).

7. A yaw gearbox comprising a yaw gearbox output structure, characterized in that the yaw gearbox output structure is a yaw gearbox output structure according to any of claims 1-6.