Guiding oil collector for bearing seat

By designing a guide oil collector in the vacuum pump and utilizing the structure of baffle plates and guide grooves, the problem of low lubricant collection efficiency is solved, the lubricant is accurately guided, the lubrication effect of the bearing housing is improved, and the stability and life of the vacuum pump are enhanced.

CN223854452UActive Publication Date: 2026-01-30HANGZHOU BINTE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520738126.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-01-30
Estimated Expiration
2035-04-18

AI Technical Summary

Technical Problem

In existing vacuum pumps, the oil mist formed by the vertical diameter projection of the lubricating medium has a wide range, resulting in a very low proportion of oil mist entering the bearing housing oil collection groove. This leads to a severely low lubricating medium collection efficiency, which cannot meet the lubrication requirements of high-speed or small models.

Method used

Design a guide oil collector for bearing housing, including a base, nested cylinder, connecting hole, through hole, blocking plate and vertical groove, etc. The guide oil collector is fixed by bolts so that it extends beyond the gear and oil slinger in the axial direction. The blocking plate blocks the oil and guides the lubricating medium to the oil collection groove of the bearing housing through the vertical groove and the horizontal groove.

Benefits of technology

It increases the probability of lubricating medium entering the bearing housing, maintains a good lubrication environment inside the bearing, reduces component wear, lowers the coefficient of friction, improves the operational stability and reliability of the vacuum pump, optimizes system energy consumption, and extends equipment service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223854452U_ABST
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Abstract

The utility model belongs to the field of oil collectors, and particularly relates to a guide oil collector used on a bearing seat, which comprises a base, an embedded sleeve is fixedly connected to the top of the base, a plurality of first connecting holes are formed in a frame body of the base, an inner diameter hole is formed in the middle of the base, a plurality of notch grooves are formed in the bottom of the base, and collecting pieces are fixedly connected to the notch grooves. Bolts penetrate through the first connecting holes and then are screwed on the threaded holes of the bearing seat, so that the base is fixed, the bolts penetrate through the through holes and are screwed in the second connecting holes, the collecting piece is fixed, and through the fixing mode, it can be guaranteed that the whole guiding oil collector exceeds the gear and the oil flinger in the axial direction, and therefore the oil collecting efficiency is improved. And meanwhile, the end part of the transverse groove is aligned with the opening of the oil collecting groove of the bearing seat for accurate positioning.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oil collector, specifically a guide oil collector for bearing seat. BACKGROUND

[0002] Dry screw vacuum pump is a kind of air-extracting equipment using a pair of screws to produce suction and exhaust action in the pump shell, and the two screws are supported by bearings and installed in the pump shell after fine dynamic balance correction, and there is a certain gap between the screws, so there is no friction between them when the pump is working, and the operation is stable and the noise is low, and the bearings need to be lubricated with oil when working, and the rolling bearing must be fully lubricated to realize reliable operation, and the lubricating medium is necessary for reducing friction, preventing wear, protecting the bearing surface from corrosion and providing cooling, in order to enable the bearing to fully contact the lubricating medium, generally, oil collecting groove and through hole are formed on the bearing seat, and during the operation of the vacuum pump, the lubricating medium stored at the bottom of the oil chamber is formed into oil mist by the centrifugal force generated by the high-speed rotating driving gear set and oil throwing disc, the oil mist is collected through the oil collecting groove structure of the bearing seat, and finally the forced lubrication of the rolling bearing pair is realized to complete the lubrication of the bearing during the working process.

[0003] The existing vacuum pump mounting structure is as follows Figure 2 The bearing and the bearing seat are flush, and the gear and the oil throwing disc are sequentially arranged behind the bearing, and the gear and the oil throwing disc are parallel to the bearing seat in the vertical radial direction, and the lubricating medium enters the oil collecting groove by the radial projection of the gear and the oil throwing disc, however, it is found in actual application that the bearing of a faster speed model needs more lubricating medium, and at this time, the lubricating medium entering the bearing through the oil collecting groove cannot reach the limit standard of the bearing, when the model is smaller, the size of the oil collecting groove is limited, and the lubricating medium in the bearing seat cannot reach the standard of the bearing during long-term and limit operation, and since the oil mist range formed by vertical radial projection is relatively wide, the oil mist ratio entering the oil collecting groove of the bearing seat is extremely low, resulting in serious low lubricating medium collection efficiency, therefore, the guide oil collector for bearing seat is proposed for the above problems. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem that the oil mist range formed by vertical radial projection is relatively wide, the oil mist ratio entering the oil collecting groove of the bearing seat is extremely low, and the lubricating medium collection efficiency is seriously low due to the prior art, the utility model provides a guide oil collector for bearing seat.

[0005] The utility model discloses a technical scheme that solves its technical problem is adopted: a kind of guiding oil collector for bearing seat, including pedestal, the top of the pedestal is fixedly connected with nested cylinder, the frame of the pedestal is equipped with a plurality of connecting holes one, the middle part of the pedestal is equipped with inner diameter hole, the bottom of the pedestal is equipped with a plurality of cutout slot, the slot of cutout slot is fixedly connected with collection piece;

[0006] As preferred, the cutout slot further comprises a connecting hole two, the inner wall of the cutout slot is provided with a connecting hole two, and the connecting hole two is used to fix the collection piece by bolts;

[0007] As preferred, the collection piece comprises a through hole and a blocking piece, the frame of the collection piece is provided with a through hole, and the side of the collection piece frame is fixedly connected to the piece body of the blocking piece; the bolts are fixedly connected with the connecting hole two through the through hole to fix the collection piece;

[0008] As preferred, the inner diameter hole comprises a horizontal slot and a vertical slot, the inner wall of the inner diameter hole is provided with a horizontal slot, and the end of the horizontal slot is provided with a vertical slot;

[0009] As preferred, the side of the pedestal frame is provided with a cutout part.

[0010] The utility model discloses the advantages are:

[0011] 1. The utility model discloses a bolt through connecting hole one, then bolt is tightened on the thread hole of bearing seat, to fix the pedestal, and the bolt is fixed in connecting hole two by through hole, to fix the collection piece, through the above-mentioned fixed mode, can ensure that guiding oil collector whole exceeds gear and oil-throwing disc in axial direction, and the end of horizontal slot is accurately positioned to the oil collecting groove opening of bearing seat;

[0012] 2. The utility model discloses the oil material that gear and oil-throwing disc will project by centrifugal force is effectively blocked by blocking piece, and the lubricating medium intercepted by collection piece can finally gather in the oil collecting groove of bearing seat along vertical slot, through the above-mentioned structure, the flow path of lubricating medium is provided with accurate direction, and the cutout part of the side of the pedestal can make the finger steady when installing. ACCURACY

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor under the premise of the drawings.

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a schematic view of prior vacuum pump mounting structure.

[0016] In the figure:

[0017] 1, base; 2, connecting hole one; 3, collecting piece; 31, through hole; 32, blocking piece; 4, inner diameter hole; 41, transverse groove; 42, vertical groove; 5, nested cylinder; 6, cutout part; 7, cutout groove; 71, connecting hole two. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] The following will be combined with the drawings Figures 1-2 The application will be further described in detail,

[0020] The embodiment of the application discloses a kind of guide oil collector on bearing seat, including base 1, the top of the base 1 is fixedly connected with nested cylinder 5, the frame of the base 1 is opened with multiple connecting hole one 2, the middle part of the base 1 is opened with inner diameter hole 4, the bottom of the base 1 is opened with multiple cutout grooves 7, the groove of the cutout groove 7 is fixedly connected with collecting piece 3;

[0021] The cutout groove 7 also includes connecting hole two 71, the inner wall of the cutout groove 7 is opened with connecting hole two 71, and the connecting hole two 71 is used to be fixedly connected with collecting piece 3 by bolt;

[0022] The collecting piece 3 includes: through hole 31, blocking piece 32, the frame of the collecting piece 3 is opened with through hole 31, and the side of the frame of the collecting piece 3 is fixedly connected to the sheet body of blocking piece 32, and bolt is fixedly connected by the through hole 31 and connecting hole two 71 so as to fix collecting piece 3;

[0023] The inner diameter hole 4 includes transverse groove 41 and vertical groove 42, the inner wall of the inner diameter hole 4 is opened with transverse groove 41, and the end of the transverse groove 41 is opened with vertical groove 42;

[0024] The side of the frame of the base 1 is opened with cutout part 6.

[0025] Working principle: in the vacuum pump is usually selected as lubricating medium mineral oil or other oil, oil is a compound, especially the particles of mineral oil is a molecular chain, so the oil particles, not only the volume is larger than the gap between the particles, but also the oil molecule force is large enough, so the oil is easy to adhere to the surface of the object, the bearing seat oil collecting groove above the additional device is the guide oil collector, through the bolt through the connecting hole one 2, then the bolt is tightened in the threaded hole of the bearing seat, so as to fix the base 1, and the bolt passes through the through hole 31 and is tightened in the connecting hole two 71, so as to fix the collecting piece 3, through the above fixing mode, it can be ensured that the guide oil collector as a whole exceeds the gear and the oil throwing disc in the axial direction, and in the process of operation of the vacuum pump, the gear and the oil throwing disc will rotate at high speed, in the process of rotation, the gear and the oil throwing disc will rely on the centrifugal force to throw the lubricating medium along the radial direction, at this time, the opening side of the collecting piece 3 will be opposite to the rotation direction of the gear and the oil throwing disc, when the lubricating medium is thrown out at high speed under the action of centrifugal force, the blocking piece 32 can effectively block the oil thrown by the gear and the oil throwing disc under the action of centrifugal force, because of the adhesion of oil, the oil blocked by the blocking piece 32 will be collected in the plate body of the collecting piece 3, so that the oil flows from the inclined edge part of the collecting piece 3 to the part connected by the through hole 31 and the connecting hole two 71 by gravity, and the end of the collecting piece 3 is aligned with the vertical groove 42, so that the oil flows from the collecting piece 3 into the vertical groove 42, and the transverse groove 41 can also store part of the oil when the oil is too much, because the end of the vertical groove 42 is aligned with the oil collecting groove opening of the bearing seat, so the lubricating medium intercepted by the collecting piece 3 will finally gather in the oil collecting groove of the bearing seat along the vertical groove 42, through the above structure, the flow path of the lubricating medium is accurately guided.

[0026] The bolt passes through the connecting hole one 2, and then the bolt is tightened in the threaded hole of the bearing seat, so as to fix the base 1, and the bolt passes through the through hole 31 and is tightened in the connecting hole two 71, so as to fix the collecting piece 3, through the above fixing mode, it can be ensured that the guide oil collector as a whole exceeds the gear and the oil throwing disc in the axial direction, and the end of the transverse groove 41 is accurately positioned with the oil collecting groove opening of the bearing seat; the blocking piece 32 can effectively block the oil thrown by the gear and the oil throwing disc under the action of centrifugal force, the oil blocked by the blocking piece 32 will be collected in the plate body of the collecting piece 3, the lubricating medium intercepted by the collecting piece 3 will finally gather in the oil collecting groove of the bearing seat along the vertical groove 42, through the above structure, the flow path of the lubricating medium is accurately guided, and the cutout 6 provided on the side of the base 1 can make the fingers stable when installing the base 1.

[0027] From the overall performance of the mechanical lubrication system, the guiding effect is important, through the reasonable guidance of the lubricating medium, the probability of oil mist entering the bearing seat can be significantly improved, which not only helps to maintain good lubrication environment inside the bearing, reduce the wear between parts, reduce the friction coefficient, and then improve the stability and reliability of the vacuum pump operation, but also can optimize the energy consumption of the whole system to a certain extent, prolong the service life of the equipment, and provide strong guarantee for the long-term stable operation of the equipment.

[0028] The basic principle, main characteristics and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A guide oil collector for a bearing seat comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a nested cylinder (5), the frame body of the base (1) is provided with a plurality of connecting holes (2), the middle of the base (1) is provided with an inner diameter hole (4), the bottom of the base (1) is provided with a plurality of cutout grooves (7), and the groove of the cutout groove (7) is fixedly connected with a collecting piece (3).

2. A guide oil collector for use on a bearing seat according to claim 1, characterized in that: The cutout groove (7) further comprises a connecting hole (71), the inner wall of the cutout groove (7) is provided with a connecting hole (71), and the connecting hole (71) is used for fixedly connecting the collecting piece (3) through a bolt.

3. A guide oil collector for use on a bearing seat according to claim 2, characterized in that: The collecting piece (3) comprises a through hole (31) and a blocking piece (32), the frame body of the collecting piece (3) is provided with a through hole (31), and the side of the frame body of the collecting piece (3) is fixedly connected with the piece body of the blocking piece (32); the through hole (31) and the connecting hole (71) are fixedly connected through a bolt, so as to fix the collecting piece (3).

4. A guide oil collector for use on a bearing seat according to claim 1, characterized in that: The inner diameter hole (4) comprises a transverse groove (41) and a vertical groove (42), the inner wall of the inner diameter hole (4) is provided with a transverse groove (41), and the end of the transverse groove (41) is provided with a vertical groove (42).

5. A guide oil collector for use on a bearing seat according to claim 1, characterized in that: The side of the frame body of the base (1) is provided with a cutout portion (6).