CN215979786U - Oil inlet structure, planetary disc and compressor - Google Patents

Abstract

The utility model relates to the technical field of compressors, in particular to an oil inlet structure which comprises a through hole section, a cylinder body and a cylinder cover, wherein the through hole section extends along an equal circular cross section, and the extending track is a straight line; the edge extension section is arranged on one side of the through hole section in the extension track direction and used for expanding the flow range of the edge of the through hole section; wherein the edge extension extends in a radial direction of the through hole section. The utility model provides an oil inlet structure capable of improving the existing oil inlet hole, the existing oil inlet hole is reserved through the arrangement of the edge extension section, and the edge extension section is obtained only through the improvement of the edge. Meanwhile, the utility model also claims a planetary disk and a compressor.

Description

Oil inlet structure, planetary disc and compressor

Technical Field

The utility model relates to the technical field of compressors, in particular to an oil inlet structure, a planetary plate and a compressor.

Background

In the existing compressor, an oil inlet hole 01 is formed in a planetary plate, as shown in fig. 1 and 2, the oil inlet hole 01 is communicated with a back 02 and a ball socket 03 of the planetary plate, the back 02 is attached to a thrust bearing race, and after the thrust bearing race is placed, 90% of the flow area of the oil inlet hole 01 is blocked by the thrust bearing race, so that the amount of lubricating oil which can enter the ball socket 03 of the planetary plate in the actual operation process is small, and the lubricating effect between the ball socket 03 of the planetary plate and a connecting rod is poor due to the above situation.

In view of the fact that the existing compressor is relatively stable in product form, if the relative positions of the ball socket 03, the oil inlet hole 01 and the thrust bearing race are changed, the related products and the related process are greatly improved, and even the performance of the existing products is affected.

In view of the above problems, the present designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is actively making research and innovation in cooperation with the application of the theory, in order to design an oil feeding structure, a planetary plate and a compressor.

SUMMERY OF THE UTILITY MODEL

The utility model provides an oil inlet structure, which can effectively solve the problems in the background art, and simultaneously, the utility model also requests to protect a planetary disk and a compressor, and has the same technical effect.

In order to achieve the purpose, the utility model adopts the technical scheme that:

an oil feed structure, includes:

the through hole section extends along the equal circular section, and the extending track is a straight line;

the edge extension section is arranged on one side of the through hole section in the extension track direction and used for expanding the flow range of the edge of the through hole section;

wherein the edge extension extends in a radial direction of the through hole section.

Further, a cross section of the edge extension section perpendicular to the extended locus includes:

the semicircular arc lines are symmetrically arranged in the radial direction of the through hole section, and the opening end of the semicircular arc lines faces the through hole section;

and the two straight lines are respectively connected with the end part of the semicircular arc line and the inner wall of the through hole section.

Further, the bottom of the edge extension section facing the oil inlet direction is a plane.

Further, the plane is disposed perpendicular to the extended locus.

Further, an included angle between the plane and the extending track on the side where the lubricating oil enters is an acute angle.

Further, the maximum depth of the edge extension section in the oil inlet direction is 1/6-1/3 of the length of the through hole section.

Further, the distance between the two straight lines is equal to the diameter of the through hole section.

A planetary plate adopts the oil inlet structure;

the through hole section is communicated with a ball socket and the back of the planetary plate;

the edge extension section is arranged on one side, located on the back face, of the through hole section, and is arranged to enable the back face to form a concave area;

wherein the rim extension extends radially outwardly of the central aperture of the planet disk.

A compressor employing a planet disk as described above.

Through the technical scheme of the utility model, the following technical effects can be realized:

the utility model provides an oil inlet structure capable of improving the existing oil inlet, the existing oil inlet is reserved through the arrangement of the edge extension section, and the edge extension section is obtained only through the improvement of the edge; the extending direction of the edge extending section is controlled, so that the shielding of the thrust bearing race is avoided through smaller machining amount and more definite direction in the subsequent process of using the oil inlet structure.

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 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 described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of a prior art planetary disk of the background art;

FIG. 2 is a cross-sectional view taken at A-A in FIG. 1 (with a partial enlargement);

FIG. 3 is a schematic structural diagram of a planetary disk according to the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at C;

FIG. 5 is a front view of FIG. 3;

FIG. 6 is a cross-sectional view taken at B-B of FIG. 5 (with a partial enlargement);

FIG. 7 is a front profile view of an oil intake structure of the present invention;

FIG. 8 is a schematic illustration of an optimization of the plane;

reference numerals:

01. an oil inlet hole; 02. a back side; 03. a ball socket;

1. a via section; 2. an edge extension section; 21. a semicircular arc line; 22. a straight line; 23. a plane; 3. a guide wire; 4. a central bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example one

As shown in FIGS. 3-6, an oil inlet structure comprises: the through hole section 1 extends along the equal circular section, and the extending track is a straight line; the edge extension section 2 is arranged on one side of the through hole section 1 in the extension track direction and is used for expanding the flow range of the edge of the through hole section 1; wherein the edge extension 2 extends in the radial direction of the through-hole section 1.

The utility model provides an oil inlet structure capable of improving the existing oil inlet hole 01, the existing oil inlet hole 01 can be reserved through the arrangement of the edge extension section 2, only the edge extension section 2 is obtained through the improvement of the edge, and by adopting the improvement mode, one end, originally shielded by a thrust bearing race, of the oil inlet hole 01 in the planet disk can be retracted inwards relative to the thrust bearing race to form an extension range for lubricating oil to enter, so that the lubricating effect between the ball socket 03 and a connecting rod of the planet disk is effectively improved.

Referring to the thickened guide line 3 in fig. 6, it can be shown that the oil inlet structure of the present invention can obtain a cross section similar to a "7" shape after the edge extension section 2 extends along the radial direction of the through hole section 1, and the extending direction of the edge extension section 2 can be controlled to avoid the shielding of the thrust bearing race through a smaller amount of processing and a more definite direction in the subsequent use process of the oil inlet structure.

As a preference of this embodiment, as shown in fig. 7, a cross section of the edge extension 2 perpendicular to the extension track includes: the semicircular arc lines 21 are symmetrically arranged in the radial direction of the through hole section 1, and the opening end of each semicircular arc line faces the through hole section 1; two straight lines 22 respectively connecting the end of the semicircular line 21 and the inner wall of the through hole section 1.

The edge extension 2 of such a cross section is more easily obtained during machining, in particular, the semicircular arc line 21 can be obtained by machining a counter bore, and then the removal of material towards the inside of the through hole section 1 is performed with the machined counter bore as a machining starting point, so that the required straight line 22 can be naturally formed; promptly, the effectual processing degree of difficulty that has reduced oil feed structure of above-mentioned structural style. In this configuration, the distance between the two straight lines 22 is preferably equal to the diameter of the through-hole section 1, which also allows a smoother flow of the lubricant and avoids the lubricant being blocked due to a too complex cross-sectional change of the flow channel.

In this embodiment, in order to ensure that the lubricant oil flows more smoothly, the bottom of the edge extension section 2 facing the oil inlet direction is a plane 23. The direction of the arrow shown in fig. 6 is the direction in which the lubricant enters, and by the above definition, the formation of the region where the lubricant remains can be avoided, and the circulation of the lubricant is also made smoother.

There are two ways of setting the plane 23:

in a first mode

The plane 23 is arranged perpendicular to the extending track; this configuration is particularly suitable for the edge extension 2 outlined by the semicircular arc 21 and the two straight lines 22, which makes it possible to obtain a plane 23 perpendicular to the direction of extension naturally by using the edge extension 2 as a groove.

Mode two

The included angle between the plane 23 and the extending track on the side where the lubricating oil enters is an acute angle, that is, the angle α shown in fig. 8 is an acute angle, which makes the machining difficulty greater than that of the former method in terms of machining angle, but makes the lubricating oil enter the through hole section 1 more smoothly in terms of the guiding direction of the lubricating oil, so that the resistance is reduced, and the lubricating effect is further improved.

As the optimization of this embodiment, the maximum depth of the edge extension section 2 in the oil inlet direction is 1/6~1/3 of the length of the through hole section 1, thereby on the one hand, ensuring that the edge extension section 2 has a proper flow area, and on the other hand, also ensuring that the planetary plate with the oil inlet structure has a stable structure.

Example two

A planetary plate, which adopts the oil inlet structure as in the first embodiment; wherein, the through hole section 1 is communicated with a ball socket 03 and a back 02 of the planetary plate; the edge extension section 2 is arranged on one side of the through hole section 1, which is positioned on the back surface 02, and is arranged to enable the back surface 02 to form a concave area; wherein the rim extension 2 extends radially outwards of the central aperture 4 of the planet disk.

In this embodiment, the oil inlet structure in the first embodiment is applied to the planetary plate, and the played technical effect is the same as that in the first embodiment, and is not repeated here. The radially outward extension of the edge extension 2 along the central aperture 4 of the planet disk may be such that the edge extension 2 exhibits a larger lubrication flow area at the periphery of the thrust bearing race.

EXAMPLE III

A compressor employing a planetary disc as described in embodiment two. The technical effects achieved in this embodiment are also the same as those in the first embodiment, and are not described herein again.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides an oil feed structure, its characterized in that includes:

the through hole section extends along the equal circular section, and the extending track is a straight line;

the edge extension section is arranged on one side of the through hole section in the extension track direction and used for expanding the flow range of the edge of the through hole section;

wherein the edge extension extends in a radial direction of the through hole section.

2. The oil feed structure of claim 1, wherein a cross section of the edge extension section perpendicular to the extension trajectory includes:

the semicircular arc lines are symmetrically arranged in the radial direction of the through hole section, and the opening end of the semicircular arc lines faces the through hole section;

and the two straight lines are respectively connected with the end part of the semicircular arc line and the inner wall of the through hole section.

3. The oil feed structure of claim 1, wherein a bottom of the edge extension facing the oil feed direction is planar.

4. The oil feed structure of claim 3, wherein the plane is disposed perpendicular to the extended trajectory.

5. The oil inlet structure of claim 3, wherein an included angle between the plane and the extending track on the side where the lubricating oil enters is an acute angle.

6. The oil inlet structure according to any one of claims 1 to 3, wherein the maximum depth of the edge extension section in the oil inlet direction is 1/6 to 1/3 of the length of the through hole section.

7. The oil feed structure of claim 2, wherein the distance between the two straight lines is equal to the diameter of the through hole section.

8. A planetary plate, wherein the oil feed structure of claim 1 is employed;

the through hole section is communicated with a ball socket and the back of the planetary plate;

the edge extension section is arranged on one side, located on the back face, of the through hole section, and is arranged to enable the back face to form a concave area;

wherein the rim extension extends radially outwardly of the central aperture of the planet disk.

9. A compressor, characterized in that a planetary disc according to claim 8 is used.

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