Bearing box structure with oil-water impurity settling separation function

Abstract

The bearing box structure with the oil-water impurity settling separation function comprises a bearing box body, a lubricating oil cavity is formed in the bearing box body, a rotating shaft which extends into the lubricating oil cavity and is rotationally connected with the bearing box is arranged on the bearing box in a penetrating mode, and an oil slinger is installed on the rotating shaft. Baffles separated from the oil slinger are arranged in the lubricating oil cavity and located on the two sides, in the axial direction of the rotating shaft, of the oil slinger correspondingly, the baffles are fixed in the lubricating oil cavity, and oil guide slopes which face the sides, in the direction of the corresponding oil slinger, of the baffles and extend towards the bottom of the lubricating oil cavity are arranged on the baffles. The topmost end of the oil guide inclined face is located above the liquid level face of oil in the lubricating oil cavity, and the projection of the oil slinger in the horizontal radial direction of the rotating shaft is located in the projection of the corresponding oil guide inclined face in the horizontal radial direction of the rotating shaft and the extension line of the projection in the vertical diameter direction of the rotating shaft. Impurities can be better precipitated at the bottom of the lubricating oil cavity, and the situation that the impurities are mixed in oil liquid to damage lubricating parts is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of bearing box structures, and in particular to a bearing box structure with oil-water impurity sedimentation and separation functions. Background Art

[0002] The oil slinger is a common lubrication method, especially in the bearing housings of rotating machinery such as motors, pumps and compressors. This lubrication method uses the rotation of the shaft to bring the lubricating oil to the parts that need lubrication. After a long period of use, the moving parts inside the bearing housing will naturally wear out during use, and the resulting metal chips will mix into the lubricating oil; and dust, sand and other particles from the outside may also enter the bearing housing and mix into the lubricating oil, causing various impurities to appear in the lubricating oil. During the rotation of the oil slinger, the impurities mixed in the lubricating oil will be thrown to the parts of the bearing housing that need lubrication, causing wear of the parts and reducing the service life. Summary of the invention

[0003] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is: how to provide a bearing box structure with oil-water impurity sedimentation and separation function that can make impurities settle at the bottom of the oil chamber and reduce impurities mixed in the lubricating oil and thrown toward the lubricating parts.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A bearing box structure with oil-water impurity sedimentation and separation function, including a bearing box body, a lubricating oil cavity is arranged in the bearing box body, a rotating shaft extending into the lubricating oil cavity and rotatably connected to the bearing box is penetrated by the bearing box, an oil slinger is installed on the rotating shaft, and baffles separated from the oil slinger are respectively arranged in the lubricating oil cavity and located on both sides of the oil slinger along the axial direction of the rotating shaft, the baffles are fixed in the lubricating oil cavity, and an oil guide slope is arranged on the baffle, facing the side of the direction of the corresponding oil slinger and extending toward the bottom of the lubricating oil cavity, the top of the oil guide slope is located above the oil level surface in the lubricating oil cavity, and the projection of the oil slinger along the horizontal radial direction of the rotating shaft is located within the projection of the corresponding oil guide slope along the horizontal radial direction of the rotating shaft and the extension line of the projection along the vertical diameter of the rotating shaft.

[0005] In the present invention, the oil slinger brings out the lubricating oil in the lubricating oil cavity, not only bringing the lubricating oil into the lubricating parts, but also slinging out the excess lubricating oil in all directions, and the slinging out lubricating oil will be slinging out to the oil guide slopes on both sides; the impurities in the lubricating oil on the oil guide slopes have a greater density than the oil, so these impurities will not be suspended in the lubricating oil, but will sink on the oil guide slopes; due to the difference in friction, the speed at which these impurities move on the oil guide slopes is lower than the speed at which the lubricating oil moves, so most of the lubricating oil will quickly flow from the oil guide slopes to the oil below, while the impurities will flow slowly downward on the oil guide slopes with a small part of the lubricating oil; and then the impurities in the slinging out lubricating oil are separated from most of the lubricating oil. After these impurities enter the oil below, they will settle at the bottom of the lubricating oil cavity, so that they will not be mixed and suspended in the lubricating oil and slinging into the lubricating parts.

[0006] As an optimization, one end of the oil guide slope extends to the bottom of the lubricating oil chamber, and the other end extends to the wall of the lubricating oil chamber, so as to better facilitate the flow of impurities to the bottom of the lubricating oil chamber.

[0007] As an optimization, a cooling water chamber is further provided in the bearing box body and below the lubricating oil chamber, and a water inlet chamber and a water outlet chamber are respectively provided in the bearing box body and on both sides of the lubricating oil chamber along the horizontal radial direction of the rotating shaft, the lower ends of the water inlet chamber and the water outlet chamber respectively extend downward and are connected to the cooling water chamber, and a cooling water inlet and a cooling water outlet are respectively provided on the side of the bearing box body, which are connected to the water inlet chamber and the water outlet chamber. The lubricating oil in the lubricating oil chamber located above is cooled by circulating water.

[0008] As an optimization, the bearing box body includes a box body body and a box body bottom cover fixedly and sealedly connected to the bottom of the box body body, the cooling water cavity is formed between the box body body and the box body bottom cover, the bottom convexity of the cooling water cavity is formed with multiple guide ribs so that a circuitous cooling channel is formed in the cooling water cavity, and the two ends of the cooling channel are respectively connected to the water inlet cavity and the water outlet cavity. The circuitous cooling channel can make the cooling water flow longer, increase the heat exchange time, and improve the cooling effect on the lubricating oil.

[0009] As an optimization, the bottom of the cooling water chamber is located at the position where the cold water flow channel is connected to the water outlet chamber, and a drainage hole is provided in the vertical direction. The bottom of the bottom cover of the box body is installed with a water valve at the drainage hole. In some special working conditions, there is no clean cooling water to cool the bearing box, so water will be taken on site, such as stream water, river water, etc. Such water may contain various impurities. If such water is used as cooling water for the bearing box for a long time, the impurities will be precipitated in the cooling water chamber, which will not only reduce the cooling efficiency, but also cause blockage of the cooling water chamber in serious cases. Therefore, a drainage hole is set at the end of the cooling flow channel, and the water flow will flush these impurities here, and these impurities will be flushed out by opening the water valve.

[0010] As an optimization, the bottom of the cooling water chamber is an inclined surface that is inclined downward from the side where the water inlet chamber is located toward the side where the water outlet chamber is located, so that impurities such as mud and sand can be quickly settled to the lowest point of the cooling water chamber with the water flow and discharged outward better.

[0011] Compared with the prior art, the present invention separates the lubricating oil and impurities by different moving speeds on the oil guide slope, so that the impurities can be better precipitated at the bottom of the lubricating oil chamber to avoid being mixed in the oil and thrown into the lubricating parts by the oil slinger ring, thereby improving the service life of the lubricating parts; in addition, the lubricating oil can be effectively cooled to avoid damage to the components caused by high temperature; and it can also better precipitate and discharge impurities in cooling water with poor water quality to avoid blocking the cooling channel and affecting the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a side view of the internal structure of the bearing box in the present invention; Figure 2 It is a front view of the internal structure of the bearing box in the present invention; Figure 3 It is a top view of the bottom cover of the box body in the present invention. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0014] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when used, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] like Figures 1 to 3 As shown, attached Figure 3 The direction of the middle arrow is the cooling water flow direction. The bearing box structure with oil-water impurity sedimentation and separation function in this specific embodiment includes a bearing box body, a lubricating oil chamber is arranged in the bearing box body, a rotating shaft 1 extending into the lubricating oil chamber and rotatably connected to the bearing box is penetrated by the bearing box, an oil slinger 2 is installed on the rotating shaft 1, and baffles 3 separated from the oil slinger 2 are respectively arranged in the lubricating oil chamber and located on both sides of the oil slinger 2 along the axial direction of the rotating shaft 1. The baffle 3 is fixed in the lubricating oil chamber, and an oil guide slope is arranged on the baffle 3, which faces the side of the direction of the corresponding oil slinger 2 and extends toward the bottom of the lubricating oil chamber. The top of the oil guide slope is located above the oil level in the lubricating oil chamber, and the projection of the oil slinger 2 along the horizontal radial direction of the rotating shaft 1 is located within the projection of its corresponding oil guide slope along the horizontal radial direction of the rotating shaft 1 and the extension line of the projection along the vertical diameter of the rotating shaft 1 upward.

[0016] In this specific implementation, one end of the oil guiding slope extends to the bottom of the lubricating oil cavity, and the other end extends to the cavity wall of the lubricating oil cavity.

[0017] In this specific embodiment, a cooling water chamber is further provided in the bearing box body and below the lubricating oil chamber, and a water inlet chamber and a water outlet chamber are respectively provided in the bearing box body and on both sides of the lubricating oil chamber along the horizontal radial direction of the rotating shaft, the lower ends of the water inlet chamber and the water outlet chamber respectively extend downward and are connected to the cooling water chamber, and a cooling water inlet 4 and a cooling water outlet 5 which are respectively connected to the water inlet chamber and the water outlet chamber are pierced on the side of the bearing box body.

[0018] In this specific embodiment, the bearing box body includes a box body main body 6 and a box body bottom cover 7 fixedly and sealingly connected to the bottom of the box body main body 6, and the cooling water chamber is formed between the box body main body 6 and the box body bottom cover 7. The bottom protrusion of the cooling water chamber is formed with multiple guide ribs 8 so that a circuitous cooling flow channel is formed in the cooling water chamber, and the two ends of the cooling flow channel are respectively connected to the water inlet chamber and the water outlet chamber.

[0019] In this specific embodiment, a drainage hole 9 is vertically provided at the bottom of the cooling water chamber where the cold water channel is connected to the water outlet chamber, and a water valve 10 is installed at the bottom of the box bottom cover 7 at the drainage hole 8 .

[0020] In this specific implementation manner, the cavity bottom of the cooling water cavity is an inclined surface that is arranged to be inclined downwardly from the side where the water inlet cavity is located toward the side where the water outlet cavity is located.

[0021] In the specific implementation process, it can also be done that the oil guide slope is provided with a plurality of oil guide grooves evenly spaced from the highest end to the lowest end of the oil guide slope along the extension direction of the oil guide slope, the oil guide grooves extend along the width direction of the oil guide slope and are through grooves, and the baffle is located on both sides of the width direction of the oil guide slope and is respectively provided with side slopes extending obliquely downward toward the baffle to the bottom of the lubricating oil cavity. When the lubricating oil is thrown on the oil guide slope, part of the lubricating oil will enter the oil guide groove, and this part of the lubricating oil will flow out toward one end of the oil guide groove, and then flow into the oil below through the side slopes. Similarly, the lubricating oil on the side slopes on both sides separates impurities according to different flow rates; in addition, since these impurities are precipitated on both sides, these impurities can be kept away from the position of the oil slinger after precipitation to avoid being stirred again by the rotation of the oil slinger. In addition, the oil guide groove can also be set to a herringbone shape, so that the top of the oil guide groove faces the side of the direction of the highest end of the oil guide slope, and the oil guide groove is also a through groove and its two ends are respectively connected to the two sides of the oil guide slope, so that when the lubricating oil flows downward from the oil guide slope, it can automatically be diverted to both sides after entering the oil guide groove, and better flow to the side slopes on both sides.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described with reference to the preferred embodiments of the present invention, it should be understood by those skilled in the art that various changes may be made in form and details without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A bearing box structure with oil-water impurity sedimentation and separation function, comprising a bearing box body, a lubricating oil chamber is arranged in the bearing box body, a rotating shaft extending into the lubricating oil chamber and rotatably connected to the bearing box is penetrated on the bearing box, and an oil slinger is installed on the rotating shaft. Features: Baffles separated from the oil slinger are respectively arranged in the lubricating oil chamber and located on both sides of the oil slinger along the axial direction of the rotating shaft. The baffles are fixed in the lubricating oil chamber. An oil guide slope is arranged on the baffle, facing the side in the direction of the corresponding oil slinger and extending toward the bottom of the lubricating oil chamber. The top of the oil guide slope is located above the oil level in the lubricating oil chamber. The projection of the oil slinger along the horizontal radial direction of the rotating shaft is located within the projection of the corresponding oil guide slope along the horizontal radial direction of the rotating shaft and the upward extension line of the projection along the vertical diameter of the rotating shaft.

2. The bearing box structure with oil-water impurity sedimentation and separation function according to claim 1, Features: One end of the oil guiding slope extends to the bottom of the lubricating oil cavity, and the other end extends to the cavity wall of the lubricating oil cavity.

3. The bearing box structure with oil-water impurity sedimentation and separation function according to claim 1, Features: A cooling water chamber is also provided in the bearing box body and below the lubricating oil chamber. A water inlet chamber and a water outlet chamber are respectively provided in the bearing box body and on both sides of the lubricating oil chamber along the horizontal radial direction of the rotating shaft. The lower ends of the water inlet chamber and the water outlet chamber respectively extend downward and are connected with the cooling water chamber. A cooling water inlet and a cooling water outlet respectively connected with the water inlet chamber and the water outlet chamber are provided on the side of the bearing box body.

4. The bearing box structure with oil-water impurity sedimentation and separation function according to claim 3, Features: The bearing box body includes a box body main body and a box body bottom cover fixedly and sealingly connected to the bottom of the box body main body, the cooling water chamber is formed between the box body main body and the box body bottom cover, the bottom protrusion of the cooling water chamber is formed with a plurality of guide ribs so that a circuitous cooling flow channel is formed in the cooling water chamber, and the two ends of the cooling flow channel are respectively connected to the water inlet chamber and the water outlet chamber.

5. The bearing box structure with oil-water impurity sedimentation and separation function according to claim 4, Features: The bottom of the cooling water chamber is located at the position where the cold water channel is connected to the water outlet chamber and is provided with a drainage hole in the vertical direction. The bottom of the bottom cover of the box body is provided with a water valve at the drainage hole.

6. The bearing box structure with oil-water impurity sedimentation and separation function according to claim 5, Features: The bottom of the cooling water chamber is an inclined surface that is arranged to be inclined downward from the side where the water inlet chamber is located toward the side where the water outlet chamber is located.

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