CN-224214376-U - Oil collecting flange structure applied to vacuum pump

Abstract

The utility model belongs to the field of sealing of dry screw vacuum pumps, in particular to an oil collecting flange structure applied to a vacuum pump, which comprises a bearing cavity, wherein the inner wall of the bearing cavity is fixedly connected with a bearing seat, the outer side of the bearing seat is provided with a flange, the inner wall of the bearing seat is provided with a bearing, the middle part of the bearing is fixedly connected with a rotating shaft at the middle part of the bearing cavity, the width of a circular groove can be consistent with the width of a wedge-shaped opening through the outer diameter of the circular groove slightly larger than the outer diameter of an oil slinger, the circular groove is used as a transition area for primarily collecting and draining lubricating medium, the oil quantity collected by the wedge-shaped opening can be greatly improved through the drainage effect of the circular groove, the lubricating oil collected by the flange flows into a kidney-shaped groove corresponding to the wedge-shaped opening on the bearing seat, then flows to the bearing through a through hole, and a magnet is placed in the kidney-shaped groove for adsorbing impurities in the flowing lubricating oil, so that the blocking of the through hole and the kidney-shaped groove can be avoided, and the abrasion to the bearing is reduced.

Inventors

• Jiang Ningyan

Assignees

• 杭州宾特技术有限公司

Dates

Publication Date

20260508

Application Date

20250528

Claims (3)

1. 1. The oil collecting flange structure applied to the vacuum pump comprises a bearing chamber (1) and is characterized in that the inner wall of the bearing chamber (1) is fixedly connected with a bearing seat (2), a flange (3) is arranged on the outer side of the bearing seat (2), a bearing (21) is arranged on the inner wall of the bearing seat (2), and the middle part of the bearing (21) is fixedly connected with a rotating shaft in the middle part of the bearing chamber (1); The bearing seat (2) further comprises an inner ring (22), and an outer ring of the bearing seat (2) is fixedly provided with the inner ring (22); The inner ring (22) further comprises a wedge-shaped opening (221), the ring body of the inner ring (22) is provided with the wedge-shaped opening (221), the bearing seat (2) further comprises a kidney-shaped groove (222), and the bearing seat (2) is provided with the kidney-shaped groove (222) at the position corresponding to the wedge-shaped opening (221); The kidney-shaped groove (222) further comprises a through hole (220), and the through hole (220) is formed in the bottom of the kidney-shaped groove (222).
2. 2. The oil collecting flange structure for a vacuum pump according to claim 1, wherein the inner wall of the kidney-shaped groove (222) is fixedly connected with a magnet (4) for adsorbing impurities.
3. 3. The oil collecting flange structure applied to the vacuum pump according to claim 1, wherein the flange (3) comprises a circular groove (31), and the ring body of the flange (3) is provided with the circular groove (31).

Description

Oil collecting flange structure applied to vacuum pump Technical Field The utility model relates to the field of dry screw vacuum pump sealing, in particular to an oil collecting flange structure applied to a vacuum pump. Background In the working mechanism of the vacuum pump, the application of the bearing occupies a significant position, in order to ensure that the bearing can keep a smooth and low-friction state in the high-speed operation process, lubricating oil is usually injected into a chamber or a working environment where the bearing is positioned, the service life of the bearing can be effectively prolonged, heat can be generated in the operation process of the bearing, the excessive lubricating oil can influence the heat emission, the resistance applied in the rotation process can be increased, the excessive lubricating oil can cause the excessive pressure in the chamber of the bearing to cause sealing leakage, so that the lubricating oil injected into the chamber of the bearing is not too much, an oil slinger is arranged at the outer end of the bearing for the purpose of sufficiently and uniformly contacting the lubricating oil in the working process of the bearing, and the gear synchronously rotates, so that the lubricating oil lower than the position of the bearing can reach any position of the chamber of the bearing in a splashing manner, and the lubricating effect is fully exerted. Because the space of the bearing chamber is limited, the bearing position is not easily contacted by splashed lubricating oil, so that the service life of the bearing can be influenced, the method for treating the lubricating oil which is not easily splashed in the prior art generally comprises the steps of arranging a wedge-shaped groove at the top end of the bearing, similar to a funnel effect, collecting the splashed lubricating oil and flowing to the bearing position below by gravity, but the collection capacity of the wedge-shaped groove is also relatively general, and the problem of insufficient lubricating oil quantity still exists, so that the oil collecting structure flange applied to the vacuum pump is provided for solving the problems. Disclosure of utility model In order to make up the defects of the prior art, the utility model provides an oil collecting flange structure applied to a vacuum pump. The technical scheme includes that the oil collecting flange structure applied to the vacuum pump comprises a bearing chamber, wherein the inner wall of the bearing chamber is fixedly connected with a bearing seat, a flange is arranged on the outer side of the bearing seat, a bearing is arranged on the inner wall of the bearing seat, and the middle part of the bearing is fixedly connected with a rotating shaft in the middle part of the bearing chamber; preferably, the bearing seat further comprises an inner ring, and the outer ring of the bearing seat is fixedly provided with the inner ring; Preferably, the inner ring further comprises a wedge-shaped opening, the ring body of the inner ring is provided with the wedge-shaped opening, the bearing seat further comprises a waist-shaped groove, and the bearing seat is provided with the waist-shaped groove at the position corresponding to the wedge-shaped opening; Preferably, the kidney-shaped groove further comprises a through hole, and the bottom of the kidney-shaped groove is provided with the through hole; Preferably, the inner wall of the kidney-shaped groove is fixedly connected with a magnet for adsorbing impurities; preferably, the flange comprises a circular groove, and the ring body of the flange is provided with the circular groove. The utility model has the advantages that: 1. According to the utility model, the outer diameter of the circular groove is slightly larger than that of the oil slinger, the width of the circular groove can be consistent with that of the wedge-shaped opening, the circular groove is used as a transition area for primarily collecting and draining the lubricating medium, and the oil quantity collected by the wedge-shaped opening can be greatly improved through the drainage effect of the circular groove; 2. The lubricating oil collected by the flange flows into the kidney-shaped groove corresponding to the wedge-shaped opening on the bearing seat, and then flows to the bearing through the through hole, and the magnet is placed in the kidney-shaped groove and used for adsorbing impurities in the flowing lubricating oil, so that the blocking of the through hole and the kidney-shaped groove can be avoided, and the abrasion to the bearing is reduced. Drawings In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtaine