CN218718786U

CN218718786U - Become oar speed reducer seal structure

Info

Publication number: CN218718786U
Application number: CN202222492366.8U
Authority: CN
Inventors: 高源�; 方川云; 何印; 邓峰
Original assignee: Chongqing Qingping Machinery Co ltd
Current assignee: Chongqing Qingping Machinery Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-03-24
Anticipated expiration: 2032-09-20

Abstract

The utility model belongs to the technical field of sealing connection, and relates to a sealing structure of a variable pitch speed reducer, which comprises an input shaft and a mounting seat, wherein the input shaft is rotatably arranged in a through hole of the mounting seat, a floating seal is arranged between the input shaft and the mounting seat, and the floating seal comprises a first sealing seat, a second sealing seat, a rotating ring and a sealing ring; the rotating ring is sleeved on the input shaft, the first sealing seat and the second sealing seat are fixedly arranged in the through hole, one sealing ring is respectively arranged between the first sealing seat and the rotating ring and between the second sealing seat and the rotating ring, and the input shaft is sealed through the sealing rings. The utility model discloses simple structure, maintainability is strong, and is with low costs, and first mount pad, second mount pad and rotatory ring are the conical surface with the contact department of sealing washer, and the sealing washer passes through conical surface automatic compensation when taking place axial and radial displacement to make sealing performance better. Meanwhile, a double-sealing ring structure is adopted, and a double-layer safety function is achieved.

Description

Become oar speed reducer seal structure

Technical Field

The utility model belongs to the technical field of sealing connection, a become oar speed reducer seal structure is related to.

Background

At present, a skeleton oil seal is generally adopted at an input shaft of a wind power generation variable pitch speed reducer, after the wind power generation variable pitch speed reducer is operated for a long time, the input shaft and the lip of the oil seal are abraded, so that sealing failure is caused, the operation of the speed reducer after the sealing failure can cause the damage of a variable pitch motor and the absence of any lubrication of internal parts of the speed reducer, so that the damage is caused, and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at solving the sealed problem of wind power generation becomes oar speed reducer input shaft, provide a become oar speed reducer seal structure.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a sealing structure of a variable pitch speed reducer comprises an input shaft and a mounting seat, wherein the input shaft is rotatably arranged in a through hole of the mounting seat, a floating seal is arranged between the input shaft and the mounting seat, and the floating seal comprises a first sealing seat, a second sealing seat, a rotating ring and a sealing ring; the rotating ring is sleeved on the input shaft, the first sealing seat and the second sealing seat are fixedly arranged in the through hole, and the cross sections of the first sealing seat and the second sealing seat are L-shaped and are oppositely arranged on two sides of the rotating ring; and the sealing rings are respectively arranged between the first sealing seat and the rotating ring and between the second sealing seat and the rotating ring, and the input shaft is sealed through the sealing rings.

Furthermore, the surfaces of the first sealing seat, the second sealing seat and the sealing ring are inclined surfaces, and the vertical distance between the two opposite lateral sides of the first sealing seat and the second sealing seat and the input shaft on the inclined surfaces is gradually reduced.

Further, two mounting surfaces are arranged on the rotating ring, one side of the sealing ring is in contact with the mounting surfaces, and the other side of the sealing ring is in contact with the inclined surface.

Furthermore, one side of the first sealing seat, which is far away from the second sealing seat, is provided with a check ring for fixing the first sealing seat.

Further, the input shaft is rotatably connected with the mounting seat through a bearing.

The beneficial effects of the utility model reside in that: the utility model discloses simple structure, maintainability is strong, and is with low costs, can reduce the sealing washer simultaneously and wear and tear in same position, because axial and radial can periodic production string move when the gear box moves, and first mount pad, second mount pad and rotatory ring are the conical surface with the contact department of sealing washer, and the sealing washer passes through conical surface automatic compensation when taking place axial and radial displacement, starts the floating seal effect to make sealing performance better. Meanwhile, the double-sealing ring structure is adopted, the double-layer safety function is achieved, and oil leakage at the variable-pitch input shaft can be effectively reduced.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view of a sealing structure of a pitch reducer of the utility model;

fig. 2 is an enlarged view of the sealing structure in the embodiment of the present invention.

Reference numerals: 1-a retainer ring; 2-a first seal seat; 3-sealing ring; 4-rotating the ring; 5-a second seal seat; 6-input shaft.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can be implemented or applied by other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1-2, a sealing structure of a variable pitch speed reducer comprises an input shaft 6 and a mounting seat, wherein the input shaft 6 is rotatably mounted in a through hole of the mounting seat through a bearing, a floating seal is arranged between the input shaft 6 and the mounting seat, and the floating seal comprises a first sealing seat 2, a second sealing seat 5, a rotating ring 4 and a sealing ring 3; the rotating ring 4 is fixedly sleeved on the input shaft 6, the first sealing seat 2 and the second sealing seat 5 are fixedly arranged in the through hole, and the cross sections of the first sealing seat 2 and the second sealing seat 5 are L-shaped and are oppositely arranged on two sides of the rotating ring 4; one seal ring 3 is provided between the first seal ring 2 and the rotating ring 4, and one seal ring 3 is provided between the second seal ring 5 and the rotating ring 4, and the input shaft 6 is sealed by the seal rings 3.

The surfaces of the first sealing seat 2, the second sealing seat 5 and the sealing ring 3 are inclined surfaces, and the vertical distance between the two opposite sides of the first sealing seat 2 and the second sealing seat 5 and the input shaft 6 on the inclined surfaces is gradually reduced. The rotating ring 4 is provided with two mounting surfaces, one side of the sealing ring 3 is in contact with the mounting surface, and the other side is in contact with the inclined surface. Because the gear box can periodically generate the crosstalk in the axial direction and the radial direction during the operation, and the contact positions of the first mounting seat, the second mounting seat and the rotating ring 4 with the sealing ring 3 are conical surfaces, when the axial displacement and the radial displacement occur, the sealing ring 3 automatically compensates through the conical surfaces, the floating sealing effect is started, and therefore the sealing performance is better.

In this embodiment, the sealing ring 3 is an O-ring, and the retaining ring 1 is installed on one side of the first sealing seat 2 away from the second sealing seat 5, and is used for axially fixing the first sealing seat 2, and the second sealing seat 5 is in interference fit with the mounting hole.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a become oar speed reducer seal structure, includes input shaft and mount pad, the input shaft rotates and locates in the through-hole of mount pad, its characterized in that: a floating seal is arranged between the input shaft and the mounting seat and comprises a first sealing seat, a second sealing seat, a rotating ring and a sealing ring; the rotating ring is sleeved on the input shaft, the first sealing seat and the second sealing seat are fixedly arranged in the through hole, and the cross sections of the first sealing seat and the second sealing seat are L-shaped and are oppositely arranged on two sides of the rotating ring; and the sealing rings are respectively arranged between the first sealing seat and the rotating ring and between the second sealing seat and the rotating ring, and the input shaft is sealed through the sealing rings.

2. The pitch reducer sealing structure according to claim 1, wherein: the surfaces of the first sealing seat, the second sealing seat and the sealing ring in contact are inclined surfaces, and the vertical distance between the two opposite lateral sides of the first sealing seat and the second sealing seat and the input shaft on the inclined surfaces is gradually reduced.

3. The pitch reducer sealing structure according to claim 2, wherein: and two mounting surfaces are arranged on the rotating ring, one side of the sealing ring is in contact with the mounting surfaces, and the other side of the sealing ring is in contact with the inclined surface.

4. The pitch reducer sealing structure according to claim 1, wherein: and a retainer ring is arranged on one side of the first sealing seat, which is far away from the second sealing seat, and is used for fixing the first sealing seat.

5. The pitch reducer sealing structure according to claim 1, wherein: the input shaft is rotatably connected with the mounting seat through a bearing.