CN219452695U

CN219452695U - Fat supplementing and fat homogenizing structure of main shaft bearing

Info

Publication number: CN219452695U
Application number: CN202320552144.2U
Authority: CN
Inventors: 李长顺; 史伟; 熊佳; 尚吉顺
Original assignee: Hunan Zdcy Cnc Equipment Co ltd
Current assignee: Hunan Zdcy Cnc Equipment Co ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-08-01
Anticipated expiration: 2033-03-20

Abstract

The utility model discloses a main shaft bearing fat supplementing and homogenizing structure, which comprises the following components: a main shaft; the bearing is sleeved on the main shaft; the bearing frame is located to the cover, and the bearing frame inboard is equipped with deposits the oil pocket, and the periphery wall is equipped with the notes fat mouth that extends to depositing the oil pocket, and the one end chamber wall that deposits the oil pocket towards the bearing is equipped with the oil outlet channel that extends to the bearing to be used for mending fat to the bearing through the oil outlet channel, deposit oil pocket and oil outlet channel and be annular and coaxial with the bearing. According to the utility model, through the structure, when the grease filling gun is filled with the grease through the grease filling port according to the characteristic that the oil firstly flows into the low-pressure space, the grease firstly flows along the oil storage cavity to fill the whole oil storage cavity, and then flows into the bearing uniformly in a whole circle from the oil outlet channel, so that the uniform grease filling of the bearing is realized.

Description

Fat supplementing and fat homogenizing structure of main shaft bearing

Technical Field

The utility model relates to the technical field of bearing lubrication, in particular to a main shaft bearing grease supplementing and homogenizing structure.

Background

The main shaft bearing without a lubrication channel is a currently common grease supplementing structure, grease is directly injected into one point of the bearing through a grease injection port by a grease injection gun, and grease is uniformly distributed by rotating a main shaft and an inner ring of the bearing arranged on the main shaft. The structure can lead to uneven grease supplementing of the bearing, grease is accumulated at the near end of the grease filling port, the far end is free of the bad phenomenon of grease, the poor lubrication can lead to sharp abnormal sound when the main shaft runs, and the long-term poor lubrication can lead to heating and damage of the bearing.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a main shaft bearing grease supplementing and homogenizing structure.

According to the embodiment of the utility model, the main shaft bearing fat supplementing and homogenizing structure comprises: a main shaft; the bearing is sleeved on the main shaft; the bearing frame, the cover is located the bearing, the bearing frame inboard is equipped with and deposits the oil pocket, and the periphery wall is equipped with and extends to deposit the oil pocket annotate fat mouth, deposit the oil pocket towards the one end chamber wall of bearing is equipped with and extends to the oil outlet channel of bearing, in order to be used for through oil outlet channel to the bearing mends fat, deposit the oil pocket with the oil outlet channel is annular and with the bearing is coaxial.

The main shaft bearing grease supplementing and homogenizing structure provided by the embodiment of the utility model has at least the following beneficial effects:

through setting up above structure, according to the characteristic that fluid flows to low pressure space earlier, when the greasing rifle pours into lubricating grease through annotating the fat mouth into, lubricating grease can flow to full of whole oil storage chamber along the oil storage chamber earlier, follow the oil outlet passageway again and flow into on the bearing entirely round, evenly, realize the even moisturizing of bearing.

According to some embodiments of the utility model, the projection of the oil outlet channel in the axial direction is located between the inner ring and the outer ring of the bearing.

According to some embodiments of the utility model, the radial width dimension and the axial dimension of the oil storage chamber are both greater than the radial width dimension of the oil outlet passage.

According to some embodiments of the utility model, the radial width dimension of the oil outlet passage is in the range of 0.5-1.0mm.

According to some embodiments of the utility model, the volume of the reserve chamber is greater than 10% of the volume of the inner chamber of the bearing.

According to some embodiments of the utility model, the bearing seat is internally embedded with a grease injection spacer coaxial with the bearing seat, and the oil storage cavity and the oil outlet channel are both formed between the grease injection spacer and the inner wall of the bearing seat.

According to some embodiments of the utility model, a first flange and a second flange are arranged on the outer peripheral wall of the grease injection spacer at intervals along the axial direction, an annular concave position is formed between the first flange and the second flange, the annular concave position and the inner wall of the bearing seat form the oil storage cavity, a gap is reserved between the outer end of the first flange and the inner wall of the bearing seat to form the oil outlet channel, and the outer end of the second flange is propped against the inner wall of the bearing seat.

According to some embodiments of the utility model, the grease-filled spacer is removably attached to the bearing housing by fasteners.

According to some embodiments of the utility model, a step surface perpendicular to the central axis of the bearing seat is arranged on the inner side of the bearing seat, and the end surface of the grease injection spacer facing away from the bearing abuts against the step surface.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

fig. 2 is a schematic structural view of a grease-filled spacer according to an embodiment of the present utility model.

Reference numerals:

a main shaft 100;

a bearing 200;

bearing seat 300, oil storage cavity 310, grease filling port 320, oil outlet channel 330, grease filling spacer 340, first flange 341, second flange 342, annular recess 343, step surface 350;

a greasing gun 400.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 and 2, a main shaft bearing grease supplementing and homogenizing structure according to an embodiment of the present utility model includes: spindle 100, bearing 200, and bearing housing 300.

The bearing 200 is sleeved on the main shaft 100.

The bearing seat 300 is a revolving body and is sleeved on the bearing 200, and it can be understood that a gap is left between the inner edge of the bearing seat 300 and the outer wall of the main shaft 100, so as to prevent the main shaft 100 from being worn by contact with the bearing seat 300 during operation; the inner side of the bearing seat 300 is provided with an oil storage cavity 310, the oil storage cavity 310 and the bearing 200 are arranged at intervals along the axial direction of the main shaft 100, and the peripheral wall of the bearing seat 300 is provided with a grease injection port 320 extending to the oil storage cavity 310 for injecting lubricating grease into the oil storage cavity 310 through the grease injection port 320; the oil storage cavity 310 is provided with an oil outlet channel 330 extending to the bearing 200 towards one end cavity wall of the bearing 200 for supplementing grease to the bearing 200 through the oil outlet channel 330, namely, the grease in the oil storage cavity 310 flows to the bearing 200 through the oil outlet channel 330, obviously, the space of the oil storage cavity 310 is larger than that of the oil outlet channel 330, and the oil storage cavity 310 and the oil outlet channel 330 can respectively form a low pressure cavity and a high pressure cavity; specifically, the oil chamber 310 and the oil outlet passage 330 are both annular and coaxial with the bearing 200. It can be appreciated that, according to the characteristic that the oil flows into the low pressure space first, when the grease gun 400 injects the grease through the grease injection port 320, the grease flows along the oil storage cavity 310 to fill the whole oil storage cavity 310, and then flows into the bearing 200 from the oil outlet channel 330 completely and uniformly, so as to realize uniform grease filling of the bearing 200.

Specifically, in this embodiment, the main shaft 100 is vertically disposed, and the oil storage chamber 310 is located on the upper side of the bearing 200.

It can be appreciated that the projection of the oil outlet channel 330 along the axial direction is located between the inner ring and the outer ring of the bearing 200, so that the grease can basically flow between the inner ring and the outer ring of the bearing 200 after passing through the oil outlet channel 330, thereby reducing waste and fully ensuring the lubrication effect. Specifically, in the present embodiment, the extending direction of the oil outlet passage 330 is the same as the extending direction of the central axis of the bearing 200.

It will be appreciated that the radial width dimension and the axial dimension of the oil storage cavity 310 are both larger than the radial width dimension of the oil outlet channel 330, so that the oil storage cavity 310 and the oil outlet channel 330 form a low pressure cavity and a high pressure cavity, and thus when the grease gun 400 injects grease into the oil storage cavity 310 through the grease injection port 320, the grease will flow along the oil storage cavity 310 to fill the whole oil storage cavity 310, and then flow from the oil outlet channel 330 to the bearing 200 uniformly and completely.

In some specific embodiments, the radial width dimension of the oil outlet passage 330 ranges from 0.5 mm to 1.0mm.

It can be understood that the volume of the oil storage cavity 310 is greater than 10% of the volume of the inner cavity of the bearing 200, so that the oil storage cavity 310 can have a large enough volume, in this embodiment, the main shaft 100 is vertically arranged, and the oil storage cavity 310 is located at the upper side of the bearing 200, so that during the operation of the main shaft 100, due to the action of gravity and capillary flow, the bearing 200 can be continuously replenished with lubricating grease for a long time, so that the service life of the lubricating grease of the bearing 200 is prolonged, and the bearing 200 is not easy to damage.

It can be appreciated that the grease injecting spacer 340 is embedded and installed inside the bearing seat 300 and is coaxial with the bearing seat, the grease storing cavity 310 and the oil outlet channel 330 are formed between the grease injecting spacer 340 and the inner wall of the bearing seat 300, and the grease storing cavity 310 and the oil outlet channel 330 are formed by the grease injecting spacer 340 and the inner wall of the bearing seat 300, so that the grease storing cavity 310 and the oil outlet channel 330 do not need to be directly processed on the bearing seat 300, and the processing is more convenient.

It can be appreciated that the outer peripheral wall of the grease-injecting spacer 340 is provided with a first flange 341 and a second flange 342 at intervals along the axial direction, the first flange 341 and the second flange 342 are both annular, an annular recess 343 is formed between the first flange 341 and the second flange 342, the annular recess 343 and the inner wall of the bearing seat 300 form the oil storage cavity 310, a gap is reserved between the outer end of the first flange 341 and the inner wall of the bearing seat 300 to form the oil outlet channel 330, the processing and manufacturing are convenient, and the outer end of the second flange 342 abuts against the inner wall of the bearing seat 300 to play a sealing role, so that the leakage loss of grease is reduced.

It can be appreciated that the grease-filled spacer 340 is detachably connected with the bearing seat 300 by a fastener, and when the grease-filled spacer 340 needs to be cleaned, the disassembly and assembly are convenient; specifically, the fastener is a screw.

It will be appreciated that the inner side of the bearing housing 300 is provided with a step surface 350 perpendicular to the central axis thereof, and the end surface of the grease-filled spacer 340 facing away from the bearing 200 abuts against the step surface 350, so that the step surface 350 can be utilized to perform a positioning function when the grease-filled spacer 340 is mounted, so as to facilitate the connection of the grease-filled spacer 340 and the bearing housing 300 by a fastener.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a main shaft bearing mends fat, even fat structure which characterized in that includes:

a spindle (100);

a bearing (200) sleeved on the main shaft (100);

bearing frame (300), the cover is located bearing (200), bearing frame (300) inboard is equipped with and deposits oil pocket (310), and the periphery wall is equipped with and extends to it is annotate fat mouth (320) to deposit oil pocket (310), deposit oil pocket (310) orientation one end chamber wall of bearing (200) is equipped with and extends to oil outlet channel (330) of bearing (200), in order to be used for through oil outlet channel (330) to bearing (200) moisturizing fat, deposit oil pocket (310) with oil outlet channel (330) are annular and with bearing (200) coaxial.

2. The main shaft bearing fat filling and fat refining structure according to claim 1, wherein: the projection of the oil outlet channel (330) along the axial direction is positioned between the inner ring and the outer ring of the bearing (200).

3. The main shaft bearing fat filling and fat refining structure according to claim 1, wherein: the radial width dimension and the axial dimension of the oil storage cavity (310) are both larger than the radial width dimension of the oil outlet channel (330).

4. A main shaft bearing fat filling and fat refining structure according to claim 3, characterized in that: the radial width dimension of the oil outlet passage (330) is in the range of 0.5-1.0mm.

5. A main shaft bearing fat filling and fat refining structure according to claim 3, characterized in that: the volume of the oil storage cavity (310) is greater than 10% of the volume of the inner cavity of the bearing (200).

6. The main shaft bearing fat filling and fat refining structure according to claim 1, wherein: the inner side of the bearing seat (300) is embedded and provided with a grease injection spacer bush (340) coaxial with the bearing seat, and the oil storage cavity (310) and the oil outlet channel (330) are formed between the grease injection spacer bush (340) and the inner wall of the bearing seat (300).

7. The main shaft bearing fat filling and fat refining structure according to claim 6, wherein: the grease injection spacer bush is characterized in that a first flange (341) and a second flange (342) are arranged on the outer peripheral wall of the grease injection spacer bush (340) along the axial direction at intervals, an annular concave position (343) is formed between the first flange (341) and the second flange (342), the annular concave position (343) and the inner wall of the bearing seat (300) form the oil storage cavity (310), a gap is reserved between the outer end of the first flange (341) and the inner wall of the bearing seat (300) so as to form the oil outlet channel (330), and the outer end of the second flange (342) is propped against the inner wall of the bearing seat (300).

8. The main shaft bearing fat filling and fat refining structure according to claim 6, wherein: the grease injection spacer bush (340) is detachably connected with the bearing seat (300) through a fastener.

9. The main shaft bearing fat filling and fat refining structure according to claim 8, wherein: the inner side of the bearing seat (300) is provided with a step surface (350) perpendicular to the central axis of the bearing seat, and the end surface of the grease injection spacer bush (340) deviating from the bearing (200) is propped against the step surface (350).