阅读说明：本技术 压缩机端盖及具有其的压缩机 (Compressor end cover and compressor with same ) 是由 姜宝石 仝太峰 潘祖栋 于 2018-06-21 设计创作，主要内容包括：本发明公开了一种压缩机端盖及具有其的压缩机。其中,压缩机端盖包括用于容纳转轴的至少部分和轴承的容纳腔,容纳腔具有轴承安装面,轴承位于轴承安装面与转轴之间,压缩机端盖还包括：端盖主体,端盖主体具有相对设置的第一端面和第二端面,第一端面用于压设在压缩机主体上；储油部,储油部设置在第一端面上,储油部具有用于存储润滑油的储油腔；供油通道,供油通道的一端与储油腔连通,供油通道的另一端与轴承相接,以使润滑油通过供油通道供给轴承。本发明的压缩机端盖解决了压缩机的应急油系统无法有效供油的技术问题。(The invention discloses a compressor end cover and a compressor with the same. Wherein, the compressor end cover includes the chamber that holds that is used for holding at least part and the bearing of pivot, holds the chamber and has the bearing installation face, and the bearing is located between bearing installation face and the pivot, and the compressor end cover still includes: the end cover comprises an end cover main body, a first connecting piece and a second connecting piece, wherein the end cover main body is provided with a first end face and a second end face which are oppositely arranged, and the first end face is used for being pressed on the compressor main body; the oil storage part is arranged on the first end surface and is provided with an oil storage cavity for storing lubricating oil; one end of the oil supply channel is communicated with the oil storage cavity, and the other end of the oil supply channel is connected with the bearing, so that lubricating oil is supplied to the bearing through the oil supply channel. The compressor end cover solves the technical problem that an emergency oil system of a compressor cannot supply oil effectively.)

1. A compressor end cover comprising a receiving cavity (10) for receiving at least a portion of a rotating shaft (30) and a bearing (20), said receiving cavity (10) having a bearing mounting face (13), said bearing (20) being located between said bearing mounting face (13) and said rotating shaft (30), characterized in that said compressor end cover further comprises:

the end cover comprises an end cover main body (40), wherein the end cover main body (40) is provided with a first end face and a second end face which are oppositely arranged, and the first end face is used for being pressed on a compressor main body (110);

an oil reservoir (50), the oil reservoir (50) being provided on the first end surface, the oil reservoir (50) having an oil storage chamber (51) for storing lubricating oil;

and one end of the oil supply channel (70) is communicated with the oil storage cavity (51), and the other end of the oil supply channel (70) is connected with the bearing (20), so that the lubricating oil is supplied to the bearing (20) through the oil supply channel (70).

2. The compressor end cover of claim 1, further comprising:

and the oil inlet channel (60) is communicated with the oil storage cavity (51) so as to convey the lubricating oil to the oil storage cavity (51) through the oil inlet channel (60).

3. The compressor end cover according to claim 1, wherein the oil supply passage (70) is provided on the oil reservoir (50) and extends in a radial direction of the compressor end cover, the oil supply passage (70) communicating with a bottom surface (511) of the oil reservoir chamber (51).

4. The compressor end cover according to claim 2, wherein the oil inlet passage (60) is provided on the end cover main body (40) and extends in an axial direction of the end cover main body (40), and the oil inlet passage (60) communicates with a top end of the oil storage chamber (51).

5. A compressor end cover according to claim 3, wherein the bottom surface of the oil reservoir (51) is concave, and the oil supply passage (70) communicates with the lowest point of the concave.

6. Compressor end cover according to claim 1, characterized in that the receiving chamber (10) has a lubricant distribution groove (11), the lubricant distribution groove (11) being an annular groove, one end of the lubricant distribution groove (11) communicating with the oil supply passage (70), the other end of the lubricant distribution groove (11) communicating with the throttle hole (21) of the bearing (20) to deliver the lubricant between the bearing (20) and the rotary shaft (30) through the lubricant distribution groove (11) and the throttle hole (21).

7. Compressor end cover according to claim 6, characterized in that the axial width of the lubrication oil distribution groove (11) is larger than the diameter of the oil feed channel (70).

8. The compressor end cover of claim 1, further comprising:

draining portion (80), draining portion (80) sets up on the first terminal surface of end cover main part (40), draining portion (80) with oil storage portion (50) are located respectively hold the relative both sides of chamber (10), draining portion (80) have first draining cavity, end cover main part (40) have second draining cavity, first draining cavity with second draining cavity forms draining chamber (81), be provided with oil drain (82) on end cover main part (40), oil drain (82) with draining chamber (81) intercommunication, so that lubricating oil passes through behind draining chamber (81) pass through oil drain (82) discharge.

9. The compressor end cover according to claim 8, wherein the oil drain portion (80) has a first oil return port disposed at a side of the oil drain portion (80) away from the end cover body (40) so that the lubricating oil enters the oil drain chamber (81) through the first oil return port.

10. The compressor end cover according to claim 8, wherein the accommodating cavity (10) comprises a first cavity section (12), a flange (90) is arranged on a second end face of the end cover main body (40), the first cavity section (12), the bearing (20), the rotating shaft (30) and the flange (90) enclose a buffer oil cavity (100), and the oil drainage portion (80) is provided with a second oil return opening so that the buffer oil cavity (100) is communicated with the oil drainage cavity (81) through the second oil return opening, so that the lubricating oil enters the oil drainage cavity (81) after passing through the buffer oil cavity (100).

11. The compressor end cover according to claim 8, wherein the oil drain cavity (81) has a first side wall (811), a second side wall (812) and a third side wall (813) which are obliquely arranged, the first side wall (811) is arranged at an end of the oil drain cavity (81) away from the end cover main body (40), one end of the second side wall (812) is connected with the first side wall (811), the other end of the second side wall (812) is arranged toward a bottom surface of the oil drain cavity (81), and the third side wall (813) is arranged at an end of the oil drain cavity (81) close to the end cover main body (40).

12. Compressor end cover according to claim 11, characterized in that the first side wall (811) is at an angle a to the horizontal plane, a being 10 ° to 30 °; the second side wall (812) forms an included angle beta with the horizontal plane, and the beta is 30-70 degrees; the third side wall (813) forms an included angle gamma with the horizontal plane, and the gamma is 30-70 degrees.

13. The compressor end cover according to claim 1, wherein the oil reservoir (50) includes a cover plate (53), and the cover plate (53) is provided on the oil reservoir chamber (51) to seal the oil reservoir chamber (51).

14. The compressor end cover according to claim 1 or 13, wherein a gas discharge port (52) is provided at the top of the oil storage portion (50), and the gas discharge port (52) communicates with the oil storage chamber (51) so that gas in the oil storage chamber (51) is discharged through the gas discharge port (52).

15. A compressor, includes compressor end cover, pivot (30), bearing (20) and oil feeding system, oil feeding system includes oil feed portion and oil return portion, oil feed portion with oil feed passageway (60) of compressor end cover is connected, so that oil feeding system to the compressor end cover oil feed, oil return portion with oil drain (82) of compressor end cover are connected, so that the warp lubricated is accomplished to the compressor end cover lubricating oil flow back to oil feeding system, its characterized in that, the compressor end cover be any one of claim 1 to 14 the compressor end cover.

Technical Field

The invention relates to the technical field of compressors, in particular to a compressor end cover and a compressor with the same.

Background

The centrifugal compressor bearing needs to be provided with an emergency oil supply system to ensure that the compressor can be safely stopped after the oil system suddenly fails. At present, an emergency oil supply system is generally provided with an emergency oil tank, and lubricating oil in the emergency oil tank is distributed to each bearing.

However, the emergency oil tank needs enough space to satisfy the oil supply of each bearing. The phenomenon of uneven oil distribution easily appears in the later stage of emergency oil supply, thereby causing the bearing to be burnt black or even burnt out.

In view of the above problems, no effective solution has been proposed.

Disclosure of Invention

The embodiment of the invention provides a compressor end cover and a compressor with the same, and at least solves the technical problem that an emergency oil system of the compressor cannot supply oil effectively.

According to an aspect of an embodiment of the present invention, there is provided a compressor cover including a receiving cavity for receiving at least a portion of a rotating shaft and a bearing, the receiving cavity having a bearing mounting surface, the bearing being located between the bearing mounting surface and the rotating shaft, the compressor cover further including: the end cover comprises an end cover main body, a first connecting piece and a second connecting piece, wherein the end cover main body is provided with a first end face and a second end face which are oppositely arranged, and the first end face is used for being pressed on the compressor main body; the oil storage part is arranged on the first end surface and is provided with an oil storage cavity for storing lubricating oil; one end of the oil supply channel is communicated with the oil storage cavity, and the other end of the oil supply channel is connected with the bearing, so that lubricating oil is supplied to the bearing through the oil supply channel.

Further, the compressor end cover also includes: and the oil inlet channel is communicated with the oil storage cavity so as to convey lubricating oil to the oil storage cavity through the oil inlet channel.

Further, the oil supply channel is arranged on the oil storage part and extends along the radial direction of the compressor end cover, and the oil supply channel is communicated with the bottom surface of the oil storage cavity.

Further, the oil inlet channel sets up in the end cover main part and along the axial extension of end cover main part, the top intercommunication in oil inlet channel and oil storage chamber.

Furthermore, the bottom surface of the oil storage cavity is a concave surface, and the oil supply channel is communicated with the lowest point of the concave surface.

Further, the accommodating cavity is provided with a lubricating oil distribution groove which is an annular groove, one end of the lubricating oil distribution groove is communicated with the oil supply channel, and the other end of the lubricating oil distribution groove is communicated with the throttling hole of the bearing, so that the lubricating oil is conveyed between the bearing and the rotating shaft through the lubricating oil distribution groove and the throttling hole.

Further, the axial width of the lubricating oil distribution groove is larger than the diameter of the oil supply channel.

Further, the compressor end cover also includes: the oil drainage part is arranged on the first end face of the end cover main body, the oil drainage part and the oil storage part are respectively located on two opposite sides of the accommodating cavity, the oil drainage part is provided with a first oil drainage cavity, the end cover main body is provided with a second oil drainage cavity, the first oil drainage cavity and the second oil drainage cavity form an oil drainage cavity, an oil drain port is arranged on the end cover main body, and the oil drain port is communicated with the oil drainage cavity so that lubricating oil is drained through the oil drain port after passing through the oil drainage cavity.

Furthermore, the oil drainage part is provided with a first oil return opening, and the first oil return opening is arranged on one side of the oil drainage part, which is far away from the end cover main body, so that lubricating oil enters the oil drainage cavity through the first oil return opening.

Furthermore, the accommodating cavity comprises a first cavity section, a flange is arranged on the second end face of the end cover main body, the first cavity section, the bearing, the rotating shaft and the flange form a buffer oil cavity in a surrounding mode, and the oil drainage portion is provided with a second oil return opening so that the buffer oil cavity is communicated with the oil drainage cavity through the second oil return opening, and lubricating oil enters the oil drainage cavity after passing through the buffer oil cavity.

Furthermore, the oil drainage cavity is provided with a first side wall, a second side wall and a third side wall which are obliquely arranged, the first side wall is arranged at one end, away from the end cover main body, of the oil drainage cavity, one end of the second side wall is connected with the first side wall, the other end of the second side wall is arranged towards the bottom surface of the oil drainage cavity, and the third side wall is arranged at one end, close to the end cover main body, of the oil drainage cavity.

Further, the included angle between the first side wall and the horizontal plane is alpha, and the alpha is 10-30 degrees; the included angle between the second side wall and the horizontal plane is beta, and the beta is 30-70 degrees; the third side wall forms an included angle gamma with the horizontal plane, and the gamma is 30-70 degrees.

Further, the oil storage part comprises a cover plate, and the cover plate is covered on the oil storage cavity to seal the oil storage cavity.

Further, the top of the oil storage part is provided with an exhaust port which is communicated with the oil storage cavity, so that gas in the oil storage cavity is exhausted through the exhaust port.

According to another aspect of the embodiments of the present invention, there is also provided a compressor, including a compressor end cover, a rotating shaft, a bearing, and an oil supply system, where the oil supply system includes an oil supply portion and an oil return portion, the oil supply portion is connected to an oil inlet channel of the compressor end cover so as to enable the oil supply system to supply oil to the compressor end cover, and the oil return portion is connected to an oil discharge port of the compressor end cover so as to enable lubricating oil lubricated by the compressor end cover to flow back to the oil supply system, where the compressor end cover is the above-mentioned compressor end cover.

In the embodiment of the invention, the compressor end cover is provided with the oil storage part and the oil storage cavity on the oil storage part, so that enough lubricating oil can be stored to supply oil for the bearing, and the compressor end cover is also provided with the oil supply channel which is used for communicating the oil storage cavity and the bearing, so that the lubricating oil in the oil storage cavity is supplied to the bearing through the oil supply channel. This compressor end cover satisfies the fuel feeding to the bearing through oil storage chamber and fuel feeding passageway, can guarantee the compressor can the safety shut down after the oil system of compressor became invalid suddenly, and then has solved the unable effective oil feeding's of emergent oil system of compressor technical problem.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic structural view of a compressor head cover according to an embodiment of the present invention;

FIG. 2 is a side view of a compressor head cover according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the compressor head cover of FIG. 2 at section A-A;

FIG. 4 is an assembly view of a compressor end cover and compressor body according to an embodiment of the present invention;

FIG. 5 is an enlarged partial view of the bottom surface of the oil reservoir of the compressor end cover according to an embodiment of the present invention;

FIG. 6 is a perspective view of two embodiments of a cover plate of a compressor end cover according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view of two embodiments of a cover plate of a compressor end cover according to an embodiment of the present invention;

FIG. 8 is a block diagram of a bearing of a compressor head cover according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The invention provides a compressor end cover, please refer to fig. 1 to 8, the compressor end cover includes a receiving cavity 10 for receiving at least part of a rotating shaft 30 and a bearing 20, the receiving cavity 10 has a bearing mounting surface 13, the bearing 20 is located between the bearing mounting surface 13 and the rotating shaft 30, the compressor end cover includes: the end cover comprises an end cover main body 40, wherein the end cover main body 40 is provided with a first end face and a second end face which are oppositely arranged, and the first end face is used for being pressed on the compressor main body 110; an oil reservoir 50, the oil reservoir 50 being provided on the first end surface, the oil reservoir 50 having an oil reservoir chamber 51 for storing lubricating oil; and an oil supply passage 70, one end of the oil supply passage 70 being communicated with the oil storage chamber 51, and the other end of the oil supply passage 70 being connected to the bearing 20, so that the lubricating oil is supplied to the bearing 20 through the oil supply passage 70.

The compressor end cover of the invention is provided with the oil storage part and the oil storage cavity 51 on the oil storage part, so that enough lubricating oil can be stored to supply oil for the bearing 20, the compressor end cover is also provided with the oil supply channel 70, and the oil supply channel 70 is used for communicating the oil storage cavity 51 and the bearing 20, so that the lubricating oil in the oil storage cavity 51 is supplied to the bearing 20 through the oil supply channel 70. The compressor end cover meets the requirement of oil supply to the bearing 20 through the oil storage cavity 51 and the oil supply channel 70, can ensure that the compressor can be safely stopped after the oil system of the compressor suddenly fails, and further solves the technical problem that the emergency oil system of the compressor cannot effectively supply oil.

In addition, the compressor end cover can ensure that the bearing 20 is not damaged, and the service life of the bearing is prolonged. The oil storage part can be used as a reinforcing rib of the compressor end cover, so that the strength of the compressor end cover is enhanced.

Wherein, the oil storage chamber has enough wall thickness to bear the pressure of the lubricating medium.