Pump body with oil guide channel for lubricating between the end face of the inner ring and the contact face of the flange structure

Patent metadata

Field	Value
Publication number	US-11448219-B2
Application number	US-201817049066-A
Country	US
Kind code	B2
Filing date	Dec 12, 2018
Priority date	Aug 21, 2018
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

The disclosure discloses a pump body and a compressor with the pump body. The pump body includes: a flange structure; a bearing, the bearing being provided with an inner ring and an outer ring, the inner ring being rotatably disposed on the flange structure, and an end face of the inner ring being abutted against a contact face of the flange structure; and an oil guide channel provided inside a side wall of the inner ring, or inside the flange structure, or the side wall of the inner ring and inside the flange structure, an outlet of the oil guide channel being positioned between the end face of the inner ring and the contact face of the flange structure, so as to introduce lubricating oil between the end face of the inner ring and the contact face of the flange structure.

First claim

What is claimed is:

1. A pump body, comprising:
a flange structure;
a bearing, the bearing being provided with an inner ring and an outer ring, the inner ring being rotatably disposed on the flange structure, and an end face of the inner ring being abutted against a contact face of the flange structure; and
an oil guide channel provided inside a side wall of the inner ring, or inside the flange structure, or both inside the side wall of the inner ring and inside the flange structure, an outlet of the oil guide channel being positioned between the end face of the inner ring and the contact face of the flange structure, so as to introduce lubricating oil between the end face of the inner ring and the contact face of the flange structure;
wherein the bearing further comprises:
a retainer disposed between the outer ring and the inner ring; and
a rolling element rotatably disposed on the retainer, a third channel being disposed in the rolling element, and the third channel being configured to introduce lubricating oil between an end face of the rolling element and a contact face of the retainer.

2. The pump body as claimed in claim 1 , wherein the oil guide channel is provided inside the side wall of the inner ring, and the outlet of the oil guide channel is positioned on the end face of the inner ring.

3. The pump body as claimed in claim 2 , wherein an inlet of the oil guide channel is positioned on a peripheral face of the inner ring, so as to introduce lubricating oil from an area between the inner ring and the outer ring.

4. The pump body as claimed in claim 3 , wherein the oil guide channel comprises:
a first channel, the outlet being positioned on the first channel; and
a second channel communicated with the first channel, the inlet being positioned on the second channel.

5. The pump body as claimed in claim 4 , wherein there are a plurality of first channels, and the plurality of first channels are spaced from each other along a circumferential direction of the inner ring.

6. The pump body as claimed in claim 5 , wherein an extension direction of each of the plurality of first channels is parallel to an axis of the inner ring, and distances between every two adjacent first channels in the plurality of first channels are equal.

7. The pump body as claimed in claim 5 , wherein an included angle is formed between an extension direction of the second channel and an extension direction of each of the plurality of first channels; there are a plurality of second channels; the plurality of second channels are spaced from each other along the circumferential direction of the inner ring; and the plurality of second channels are communicated with the plurality of first channels in one-to-one correspondence.

8. The pump body as claimed in claim 5 , wherein the second channel is an annular groove; the annular groove is disposed around an outer circumferential surface of the inner ring; the plurality of first channels are communicated with the annular groove; and an opening of the annular groove forms the inlet.

9. The pump body as claimed in claim 3 , wherein the pump body further comprises a fourth channel disposed on the flange structure, and the fourth channel is configured to introduce lubricating oil to the area between the inner ring and the outer ring.

10. The pump body as claimed in claim 9 , further comprising:
a main axis rotatably disposed in the inner ring in a penetration manner; a fifth channel is provided in the main axis, the fifth channel is communicated with the fourth channel, and the fifth channel is configured to introduce lubricating oil from outside the pump body.

11. The pump body as claimed in claim 2 , wherein the flange structure comprises a first flange and a second flange; two end faces of the inner ring are abutted against the first flange and the second flange respectively; and both the two end faces of the inner ring are provided with the outlet.

12. A compressor, comprising the pump body as claimed in claim 1 .

13. The compressor as claimed in claim 12 , wherein the oil guide channel is provided inside the side wall of the inner ring, and the outlet of the oil guide channel is positioned on the end face of the inner ring.

14. The compressor as claimed in claim 13 , wherein an inlet of the oil guide channel is positioned on a peripheral face of the inner ring, so as to introduce lubricating oil from an area between the inner ring and the outer ring.

15. The compressor as claimed in claim 14 , wherein the oil guide channel comprises:
a first channel, the outlet being positioned on the first channel; and
a second channel communicated with the first channel, the inlet being positioned on the second channel.

16. The compressor as claimed in claim 15 , wherein there are a plurality of first channels, and the plurality of first channels are spaced from each other along a circumferential direction of the inner ring.

17. The compressor as claimed in claim 16 , wherein an extension direction of each of the plurality of first channels is parallel to an axis of the inner ring, and distances between every two adjacent first channels in the plurality of first channels are equal.

18. The compressor as claimed in claim 16 , wherein an included angle is formed between an extension direction of the second channel and an extension direction of each of the plurality of first channels; there are a plurality of second channels; the plurality of second channels are spaced from each other along the circumferential direction of the inner ring; and the plurality of second channels are communicated with the plurality of first channels in one-to-one correspondence.

19. The compressor as claimed in claim 16 , wherein the second channel is an annular groove; the annular groove is disposed around an outer circumferential surface of the inner ring; the plurality of first channels are communicated with the annular groove; and an opening of the annular groove forms the inlet.

Assignees

• Gree Electric Appliances Inc Zhuhai

Inventors

• Xu Jia
• Wan Pengkai
• Luo Fayou
• Wu Fei
• Sun Wenjiao
• Shi Jinfei
• Yang Guomang

Classifications

• F04C29/028

  Means for improving or restricting lubricant flow · CPC title

• F04C2240/50

  Bearings · CPC title

• F01C21/108

  with an axial surface, e.g. side plates · CPC title

• F01C21/106

  with a radial surface, e.g. cam rings · CPC title

• F16C35/04

  in the case of ball or roller bearings · CPC title