A bearing housing

Abstract

The utility model relates to a mechanical part field especially relates to a bearing box. Including the box, the box is hollow in the inside, the lubricant is filled in the box, has the main shaft of setting through the box, the main shaft is connected with the box rotation through the bearing of abutting in the box inner wall, the bearing is provided with a plurality, at least one bearing is set as target bearing, cooperation target bearing is provided with the stirrer, the coaxial sleeve of stirrer is established on the main shaft, and can rotate around the own axis under the driving of main shaft, the outer edge surface of stirrer is provided with the stirring wing, the stirring wing is provided with at least two, and multiple stirring wings are evenly distributed around the axis of stirrer in circle, the stirring wing has the end face in the direction of perpendicular to own rotation, the end face is structured as the stirring wing and is provided with the stirring wing, and the end face is structured as the stirring wing.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts, and in particular to a bearing housing. Background Technology

[0002] In existing bearing housing designs, multiple bearings typically support the spindle, and lubrication and cooling are achieved through lubricants (such as lubricating oil or grease) injected into the housing. However, under high-speed or heavy-load conditions, especially when a single bearing in the housing bears a large load, it is prone to generating excessive frictional heat, leading to temperature rise. Traditional bearing housings rely on the natural flow or simple splashing of lubricant for cooling, but the lubricant is often unevenly distributed and fails to effectively cover critical areas such as the bearing tip, causing localized overheating, insufficient lubrication, and consequently shortening bearing life. Utility Model Content

[0003] The purpose of this invention is to provide a bearing housing to solve the problem in the prior art where the lubricant does not flow easily, resulting in poor bearing cooling.

[0004] The technical solution of this utility model is: a bearing housing, including a housing body, the housing body being hollow and filled with lubricant; a main shaft penetrating the housing body, the main shaft being rotatably connected to the housing body via bearings abutting against the inner wall of the housing body; multiple bearings are provided, at least one of the bearings being designated as the target bearing; A stirrer is provided in conjunction with the target bearing. The stirrer is coaxially sleeved on the main shaft and can rotate around its own axis under the drive of the main shaft. The outer edge of the stirrer is provided with stirring blades. There are at least two stirring blades, and the multiple stirring blades are evenly distributed in a circle around the axis of the stirrer. The stirring blade has an end face perpendicular to its own rotation direction, and the end face is configured as a stirring end.

[0005] Preferably, the surface of the stirring blade away from the target bearing has an adsorption channel, the adsorption channel has a variable cross-section with a decreasing cross-sectional area along its length, and the larger end of the adsorption channel is connected to the agitator end.

[0006] Preferably, the inner wall of the box is provided with a guide portion, which is disposed above the agitator on the inner wall of the box and has a guide surface formed as an incline, the lowest end of which corresponds to the top end of the target bearing.

[0007] Preferably, the stirrer is provided with a locking device, which includes a locking groove and a detachable locking member. The locking groove is arranged radially through the stirrer, so that the stirrer forms a front end and an end end with a gap. The locking member passes through the front end of the stirrer perpendicular to the locking groove and is threadedly engaged with the end end of the stirrer.

[0008] Preferably, the outer wall of the main shaft is provided with an annular groove, and the stirrer is disposed in the annular groove. The two parallel end faces in the annular groove can restrict the movement of the stirrer along its own axial direction.

[0009] Preferably, the spindle has a shoulder on the side wall corresponding to the target bearing, and the target bearing is fixed by the shoulder of the spindle and the inner wall of the housing.

[0010] Compared with the prior art, the advantages of this utility model are: (1) By setting up an agitator that rotates coaxially with the main shaft, the agitator blade actively pushes the lubricant to flow when rotating, forming a forced circulation, effectively carrying away the heat generated by the bearing, achieving lubrication and cooling of the target bearing, avoiding local overheating, and improving the service life and operational stability of the bearing.

[0011] (2) The adsorption channel on the stirring blade adopts a variable cross-section design. When rotating, the Venturi effect is used to draw the lubricant in from the large end and accelerate its flow out, which further improves the flow rate and mixing efficiency of the lubricant in the box, ensures uniform distribution of the lubricant, and enhances the overall cooling effect. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a cross-sectional view of a bearing housing according to the present invention; Figure 2 This is a structural diagram of the stirrer described in this utility model from a first angle; Figure 3 This is a second-angle structural diagram of the stirrer described in this utility model; Figure 4 for Figure 1 Enlarged view of point A in the middle; The components are: 1. housing, 2. main shaft, 21. shoulder, 3. target bearing, 4. agitator, 41. agitator blade, 42. agitator end, 43. adsorption channel, 431. large opening end, 432. small opening end, 44. locking device, 441. locking groove, 442. locking hole, 5. guide part, 51. guide surface. Detailed Implementation

[0013] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0014] The embodiments of this application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0015] like Figure 1 and Figure 4 As shown, a bearing housing includes a housing 1, which is hollow and filled with lubricant. A main shaft 2 extends through the housing 1 and is rotatably connected to the housing 1 via bearings abutting against the inner wall of the housing 1. In this embodiment, three bearings are provided, with two bearings facing each other at one end of the housing 1, and the third bearing located separately at the other end of the housing 1 and designated as the target bearing 3.

[0016] In the application conditions of this application, since only one target bearing 3 is set, the spindle 2 is provided with a shoulder 21 on the side wall corresponding to the target bearing 3, and the target bearing 3 is fixed by the shoulder 21 of the spindle 2 and the inner wall of the housing 1. When the spindle 2 rotates, it bears a large load and will generate greater friction and heat compared with the other two bearings, requiring lubrication and cooling with lubricant.

[0017] Combination Figure 2 and Figure 3 As shown, in order to ensure that the lubricant can better act on the target bearing 3, especially the top of the target bearing 3, this application provides an agitator 4 in conjunction with the target bearing 3. The agitator 4 is coaxially sleeved on the main shaft 2 and can rotate around its own axis under the drive of the main shaft 2. The outer edge of the agitator is provided with stirring blades 41, and there are at least two stirring blades 41. The multiple stirring blades 41 are evenly distributed in a circle around the axis of the agitator 4, thereby avoiding dynamic imbalance when the agitator 4 rotates around its own axis.

[0018] In this embodiment, two stirring blades 41 are provided, and each stirring blade 41 has an end face perpendicular to its own rotation direction, which is configured as a paving end 42. When the stirring blade 41 rotates around the axis of the stirrer 4, the paving end 42 can push the lubricant in contact with it to flow, and the flow of lubricant can carry away the heat on the bearing, including the target bearing 3.

[0019] In a preferred embodiment of this application, an adsorption channel 43 is formed on the surface of the stirring blade 41 away from the target bearing 3. The adsorption channel 43 has a variable cross-section with a decreasing cross-sectional area along its length, such that the two ends of the adsorption channel 43 are a large opening 431 and a small opening 432, respectively. Furthermore, the large opening 431 of the adsorption channel 43 is connected to the agitator end 42. When the stirring blade 41 rotates, the grease enters from the large opening 431 of the adsorption channel 43 and is accelerated as the adsorption channel 43 narrows, thereby further improving the fluidity of the grease in the housing 1.

[0020] When the agitator 4 rotates, some of the grease is thrown to the top of the inner wall of the housing 1. In order to utilize this grease thrown to the top of the inner wall of the housing 1 to cool and lubricate the top of the target bearing 3, in a preferred embodiment of this application, such as... Figure 1 As shown, the inner wall of the box 1 has a guide part 5. The guide part 5 is located above the inner wall of the box 1, corresponding to the stirrer 4. The side near the target bearing 3 is constructed as a guide surface 51. The guide surface 51 is inclined, and the lowest end of the guide surface 51 corresponds to the top end of the target bearing 3. The lubricant that is thrown to the top end of the inner wall of the box 1 will slide down onto the target bearing 3 through the guide surface 51.

[0021] In this application, an annular groove is formed on the outer wall of the main shaft 2, and the stirrer 4 is disposed in the annular groove. The two parallel end faces in the annular groove can restrict the movement of the stirrer 4 along its own axial direction. To realize the assembly of the stirrer 4 and the main shaft 2, a locking device 44 is provided on the stirrer 4. The locking device 44 includes a locking groove 441 and a detachable locking member. The locking groove 441 passes through the stirrer 4 radially, so that the stirrer 4 forms a head end and a tail end, and there is a gap between the head end and the tail end. The locking member passes through the locking hole 442 at the head end of the stirrer 4 perpendicular to the locking groove 441 and is threadedly engaged with the tail end of the stirrer 4. The above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this invention is defined by the appended claims rather than the foregoing description, and it is therefore intended to include all variations falling within the meaning and scope of the equivalents of the claims within this invention.

Claims

1. A bearing housing, characterized in that, Includes a housing (1), the housing (1) being hollow inside and filled with lubricant; has a main shaft (2) that runs through the housing (1), the main shaft (2) being rotatably connected to the housing (1) via a bearing that abuts against the inner wall of the housing (1); the bearing is provided in multiples, at least one of the bearings being designated as a target bearing (3). A stirrer (4) is provided in conjunction with the target bearing (3). The stirrer (4) is coaxially sleeved on the main shaft (2) and can rotate around its own axis under the drive of the main shaft (2). The outer edge of the stirrer (4) is provided with stirring blades (41). There are at least two stirring blades (41), and multiple stirring blades (41) are evenly distributed in a circle around the axis of the stirrer (4). The stirring blade (41) has an end face perpendicular to its own rotation direction, and the end face is configured as a swivel end (42).

2. A bearing housing according to claim 1, characterized in that, An adsorption channel (43) is provided on the surface of the stirring blade (41) away from the target bearing (3). The adsorption channel (43) has a variable cross-section with a decreasing cross-sectional area in its own length direction, and the large end (431) of the adsorption channel (43) is connected to the agitator end (42).

3. A bearing housing according to claim 1, characterized in that, The inner wall of the box (1) is provided with a guide part (5), which is located above the inner wall of the box (1) corresponding to the stirrer (4), and has a guide surface (51) formed as an inclined surface. The lowest end of the guide surface (51) corresponds to the top end of the target bearing (3).

4. A bearing housing according to claim 1, characterized in that, The stirrer (4) is provided with a locking device (44), which includes a locking groove (441) and a detachable locking member. The locking groove (441) is arranged to penetrate the stirrer (4) radially, so that the stirrer (4) forms a head end and a tail end with a gap. The locking member penetrates the head end of the stirrer (4) perpendicular to the locking groove (441) and is threadedly engaged with the tail end of the stirrer (4).

5. A bearing housing according to claim 1, characterized in that, The outer wall of the main shaft (2) is provided with an annular groove, and the stirrer (4) is set in the annular groove. The two parallel end faces in the annular groove can restrict the movement of the stirrer (4) along its own axis.

6. A bearing housing according to claim 1, characterized in that, The main shaft (2) has a shoulder (21) on the side wall corresponding to the target bearing (3), and the target bearing (3) is fixed by the shoulder (21) of the main shaft (2) and the inner wall of the housing (1).

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