CN215763194U

CN215763194U - Thrust sleeve

Info

Publication number: CN215763194U
Application number: CN202121837648.6U
Authority: CN
Inventors: 李贞延; 张俊伟; 黄刚; 黎斌; 王斌
Original assignee: Sichuan Tire Rubber Group Co ltd
Current assignee: Sichuan Tire Rubber Group Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-02-08
Anticipated expiration: 2031-08-09

Abstract

The utility model provides a thrust sleeve, and aims to solve the problem that in the prior art, oil in a box body is insufficient to cause abnormal shutdown due to frequent oil leakage of a reduction gearbox. The thrust sleeve is installed on the output shaft of reducing gear box, includes: the middle part of the first mounting piece is provided with a first mounting through hole for mounting the output shaft; the middle part of the second mounting piece is provided with a second mounting through hole for mounting the output shaft; the middle part of the connecting piece is provided with a third mounting through hole for mounting the output shaft, one end of the connecting piece is connected with the first mounting piece, and the other end of the connecting piece is connected with the second mounting piece; wherein an outer sidewall of the connector is configured as an oil seal mounting area; after the output shaft passes through the third mounting through hole, the area between the output shaft and the side wall of the third mounting through hole is configured as a sealing ring mounting area.

Description

Thrust sleeve

Technical Field

The utility model relates to the technical field of reduction boxes, in particular to a thrust sleeve.

Background

After a reduction gearbox of the cold feed extruder is used for a period of time, the problems of frequent oil leakage of the reduction gearbox caused by aging of a sealing element, abrasion of equipment and uneven stress of the components in the using process exist.

The conventional method is to recycle and convey leaked oil into the reduction gearbox, and the problem that the reduction gearbox is lack of oil and the operation of the reduction gearbox is increased in abrasion or equipment accidents due to insufficient oil supply of the circulating oil is also caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a thrust sleeve for solving the problem of abnormal shutdown caused by insufficient oil in a box body due to frequent oil leakage of a reduction gearbox in the prior art.

The technical scheme adopted by the utility model is as follows:

a thrust sleeve mounted on an output shaft of a reduction gearbox, comprising:

the middle part of the first mounting piece is provided with a first mounting through hole for mounting the output shaft;

the middle part of the second mounting piece is provided with a second mounting through hole for mounting the output shaft; and

the middle of the connecting piece is provided with a third mounting through hole for mounting the output shaft, one end of the connecting piece is connected with the first mounting piece, and the other end of the connecting piece is connected with the second mounting piece;

wherein an outer sidewall of the connector is configured as an oil seal mounting area; after the output shaft passes through the third mounting through hole, the area between the output shaft and the side wall of the third mounting through hole is configured as a sealing ring mounting area.

Optionally, the first mounting element, the second mounting element and the connecting element are of an integrally formed structure.

Optionally, at least a first key groove is formed in the side wall of the first mounting through hole;

or

And at least one first key groove is formed in the side wall of the second mounting through hole.

Optionally, the end of the first mounting part is provided with at least one second key slot;

or

The end of the second mounting piece is provided with at least one second key groove.

Optionally, when the second key slot is provided on the first mounting member, the end of the first mounting member further has at least one fixing slot.

Optionally, when the second key groove is provided on the second mounting member, an end of the second mounting member is provided with at least one fixing groove.

Optionally, when the second keyway is located on the first mounting element, the diameter of the second mounting element is larger than the diameter of the connecting element, and the end face of the second mounting element facing the connecting element forms an oil-tight contact surface.

Optionally, when the second keyway is located on the second mounting part, the diameter of the first mounting part is larger than that of the connecting part, and the end face of the first mounting part facing the connecting part forms an oil-sealing contact face.

Optionally, a first tool withdrawal groove is formed in an inner side wall of a joint of the first mounting piece and the connecting piece, and a second tool withdrawal groove is formed in an inner side wall of a joint of the connecting piece and the second mounting piece.

Optionally, the diameter of the first mounting through hole is smaller than the diameters of the second mounting through hole and the third mounting through hole;

or

The diameter of the second mounting through hole is smaller than the diameters of the first mounting through hole and the third mounting through hole.

Compared with the prior art, the utility model has the beneficial effects that:

the thrust sleeve is arranged on the output shaft of the reduction gearbox, the sealing ring and the framework oil seal are installed on the thrust sleeve to seal the reduction gearbox, and the problem that the oil in the reduction gearbox flows out of the output shaft of the reduction gearbox to cause the abnormality of equipment due to the fact that the oil in the reduction gearbox is too little is solved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings 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 some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a thrust sleeve.

Fig. 2 is a partial sectional structural view of the thrust sleeve.

Fig. 3 is a partially sectional view of a plane structure of the thrust sleeve.

Fig. 4 is a simplified schematic diagram of a matching structure of the thrust sleeve and the reduction gearbox.

Reference numerals:

10. a first mounting member; 11. a first mounting through hole; 20. a second mount; 21. a second mounting through hole; 30. a connecting member; 31. a third mounting through hole; 32. an oil seal mounting area; 33. a seal ring mounting area; 40. a first keyway; 50. a second keyway; 60. fixing grooves; 70. an oil seal contact surface; 80. a first tool withdrawal groove; 90. a second tool withdrawal groove; A. a reduction gearbox; B. an output shaft; C. a thrust bearing; D. a gear sleeve.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate an orientation or positional relationship based on that shown in the drawings, or the orientation or positional relationship conventionally used in the use of the products of the present invention, or the orientation or positional relationship conventionally understood by those skilled in the art, are merely for convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In order to solve the problem of abnormal shutdown caused by insufficient oil in a box body due to frequent oil leakage of a reduction gearbox in the prior art, as shown in fig. 1-4, an embodiment of the utility model provides a thrust sleeve, wherein the thrust sleeve is arranged on an output shaft B of the reduction gearbox A, and the thrust sleeve comprises: a first mounting part 10, a second mounting part 20 and a connecting part 30; the connecting member 30 is disposed between the first and second mounting

members

10 and 20, and the first, second and third mounting through-

holes

11, 21 and 31 are respectively provided at the middle portions of the first, second and connecting

members

10, 20 and 30.

When the thrust sleeve is used, the first mounting piece 10 is connected with a thrust bearing C of the reduction gearbox A, the second mounting piece 20 is connected with a gear sleeve D of the reduction gearbox A, the output shaft B sequentially passes through the first mounting through hole 11, the third mounting through hole 31 and the second mounting through hole 21, and a sealing ring is arranged in the third mounting through hole 31, so that the output shaft B and the connecting piece 30 are attached more tightly, and oil is prevented from seeping out from the connection part; meanwhile, the outer side wall of the connecting piece 30 is provided with a framework oil seal to further improve the sealing performance of the reduction gearbox A.

The seal ring in this embodiment is an existing O-ring, U-ring, or hole YX-ring, etc. Most preferred of these are O-ring seals.

In another embodiment, as shown in fig. 2, the first mounting element 10, the second mounting element 20 and the connecting element 30 are integrally formed to facilitate manufacturing.

In another embodiment, when the first key groove 40 is formed in the side wall of the first mounting through hole 11, the thrust sleeve is in key connection with the output shaft B of the reduction gearbox a, and the situation that the thrust sleeve rotates to cause displacement and influence the sealing stability in the use process is avoided.

In other embodiments, it can be understood that the first key groove 40 is disposed on the side wall of the second mounting through hole 21, so that the thrust sleeve is connected with the output shaft B of the reduction gearbox a through a key, and the situation that the thrust sleeve rotates to cause displacement and affect the stability of sealing in the use process is avoided.

In another embodiment, after the first key groove 40 is disposed in the first mounting through hole 11, the end of the second mounting part 20 is provided with a second key groove 50, so that the second mounting part 20 and the gear sleeve D are positioned by a key, and the rotation of the second mounting part and the gear sleeve D is prevented from affecting the stability of the thrust sleeve during use.

In other embodiments, it can be understood that, after the first key groove 40 is disposed in the second installation through hole 21, the second key groove 50 is disposed at the end of the first installation part 10, so that the first installation part 10 and the gear sleeve D are positioned by a key, thereby preventing the first installation part 10 and the gear sleeve D from rotating and affecting the stability of the thrust sleeve when in use.

In another embodiment, when the second key groove 50 is formed on the first mounting member 10, the end of the first mounting member 10 further has at least one fixing groove 60, and the first mounting member 10 is coupled to the gear sleeve D through the fixing groove 60 to fix the thrust sleeve between the gear sleeve D and the thrust bearing C.

In another embodiment, when the second key groove 50 is formed on the second mounting member 20, the end of the second mounting member 20 is provided with at least one fixing groove 60, and the second mounting member 20 is coupled to the gear sleeve D through the fixing groove 60 to fix the thrust sleeve between the gear sleeve D and the thrust bearing C.

In another embodiment, when second keyway 50 is located on first mount 10, second mount 20 has a diameter greater than the diameter of connector 30, such that when the frame oil seal is installed in oil seal mounting region 32, one end is in contact with the end face of second mount 20 (which is configured as oil seal contact face 70).

In another embodiment, when the second keyway 50 is located on the second mount 20, the diameter of the first mount 10 is greater than the diameter of the connector 30, such that after the frame oil seal is installed in the oil seal mounting region 32, one end is in contact with the end face of the first mount 10 (which is configured as the oil seal contact face 70).

In another embodiment, when the first mounting element 10, the second mounting element 20 and the connecting element 30 are integrally formed, for convenience of processing, a first undercut 80 is provided on an inner sidewall of a connection portion of the first mounting element 10 and the connecting element 30, and a second undercut 90 is provided on an inner sidewall of a connection portion of the connecting element 30 and the second mounting element 20.

In another embodiment, the diameter of the first mounting through-hole 11 of the first mounting member 10 is set to be smaller than the diameters of the second and third mounting through-

holes

21 and 31 for convenience of mounting, and the second key groove 50 and the fixing groove 60 are provided at the end surface of the first mounting member 10.

In another embodiment, the diameter of the second mounting through-hole 21 of the second mounting part 20 is set to be smaller than the diameters of the first and third mounting through-

holes

11 and 31, and the second key groove 50 and the fixing groove 60 are provided at the end surface of the second mounting part 20.

The specific working principle is as follows:

10 one end of first installed part contacts with thrust bearing C, first installed part 10 is connected with reducing gear box A's output shaft B through 4 equipartition keys on 11 lateral walls of first installation through-hole, it cooperatees to have set up between 2 second keyways 50 and the gear sleeve D on the second installed part 20, make second installed part 20 and gear sleeve D realize preliminary location through the key, then pass through fixed slot 60 and gear sleeve D that 6 equipartitions set up on second installed part 20 through bolt or screw and fix, fix the thrust sleeve between gear sleeve D and thrust bearing C. At this time, an O-shaped sealing ring is arranged between the side wall of the third mounting through hole 31 and the output shaft B, and sealing is carried out through the O-shaped sealing ring; meanwhile, a framework oil seal is arranged on the outer side wall of the connecting piece 30, further sealing is carried out through the framework oil seal, and the problem that oil leakage frequently occurs at the joint of the reduction gearbox A and the thrust bearing C through the output shaft B is solved.

It should be further noted that when the first mounting member 10 is in contact with the thrust bearing C, the diameter of the second mounting through hole 21 is smaller than the diameters of the first mounting through hole 11 and the third mounting through hole 31, so as to facilitate the installation of the second key groove 50 and the fixing groove 60 on the second mounting member 20, the installation of the O-ring seal in the output shaft B and the third mounting through hole 31, and the positioning between the output shaft B and the first mounting member 10 by the key, thereby preventing the thrust sleeve from rotating.

When the working principle of the second mounting part 20 contacting with the thrust bearing C is the same as that of the first mounting part 10 contacting with the thrust bearing C, no further description is provided herein.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a thrust cover, thrust cover installs on the output shaft of reducing gear box which characterized in that includes:

2. The thrust sleeve of claim 1, wherein said first mounting member, said second mounting member, and said connecting member are of unitary construction.

3. The thrust sleeve of claim 1, wherein said first mounting opening includes at least a first keyway in a sidewall thereof;

or

4. The thrust sleeve of claim 1, wherein said first mounting member end portion is provided with at least a second keyway;

or

5. The thrust sleeve of claim 4 wherein said first mounting member end further includes at least one retaining groove when said second keyway is disposed in said first mounting member.

6. The thrust sleeve of claim 4, wherein an end of said second mounting member is provided with at least one retaining groove when said second keyway is provided on said second mounting member.

7. The thrust sleeve of claim 4, wherein said second keyway is positioned on said first mounting member such that a diameter of said second mounting member is greater than a diameter of said connecting member, and an end surface of said second mounting member facing said connecting member forms an oil-tight interface.

8. The thrust sleeve of claim 4, wherein said first mounting member has a diameter greater than a diameter of said connecting member when said second keyway is located in said second mounting member, and wherein an end surface of said first mounting member facing said connecting member forms an oil-tight contact surface.

9. The thrust sleeve of claim 2, wherein a first relief groove is formed in an inner sidewall of a junction of the first mounting member and the connecting member, and a second relief groove is formed in an inner sidewall of a junction of the connecting member and the second mounting member.

10. The thrust sleeve of claim 1, wherein a diameter of said first mounting through hole is smaller than a diameter of said second and third mounting through holes;

or