Rust-proof device for Morgan bearing oil cavity of rolling mill

Abstract

The invention provides a rolling mill Morgan bearing oil cavity rust prevention device which comprises a bearing seat, a taper sleeve, an oil throwing assembly and an end cover assembly, an oil cavity set is formed in the bearing seat in a sunken mode, a plurality of oil outlet holes are formed in the oil throwing assembly, the oil throwing assembly extends to the oil cavity set along the axial end, an annular flange is formed at one end of the taper sleeve, and the end cover assembly is arranged on the taper sleeve. A plurality of axial through holes are formed in the annular flange. In this way, the whole device can receive and guide Morgan oil through the axial through hole in the annular flange to collect the Morgan oil so as to meet the follow-up Morgan oil throwing requirement, and after the Morgan oil is received, the taper sleeve and the oil throwing assembly are driven to rotate together through rotation of the supporting roller, so that centrifugal force is generated to promote throwing of the Morgan oil; the Morgan oil on the surface of the taper sleeve is thrown to the inner surface of the nearby oil cavity group through the oil outlets of the oil slinger under the action of centrifugal force, so that a continuous bathing effect is formed, water vapor erosion can be effectively prevented, an anti-rust effect is achieved, the service life of the bearing is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-rust for Morgan bearings, and in particular to an anti-rust device for the oil cavity of a Morgan bearing in a rolling mill. Background Art

[0002] At present, large and medium-sized Morgan bearings (such as the hydraulic bearings of the support rolls of a CSP thin slab continuous casting and rolling machine) applied to industrial production lines have large sizes, high viscosity of Morgan oil, and relatively short splash distances. It is not possible to immerse the entire bearing too much, because in addition to increasing the extra load, it will also cause the temperature of the Morgan oil to rise. If the oil temperature is too high, it will affect the effect of the Morgan oil. Therefore, the return oil pipe is larger than the inlet oil pipe to enable it to flow back to the oil tank quickly. And due to the inevitable cavitation and moisture in the hydraulic oil, they are easy to vaporize at its working temperature (such as the inlet temperature is usually about 40 °C, and the temperature of the squeezed pressure oil film can reach 50 - 60 °C), resulting in corrosion of the circumference of this cavity.

[0003] For the equipment imported from abroad, most of its components have been anti-rust treated (such as baking paint, etc.), so the corroded parts account for a small number. However, most of the components of domestic equipment have not been anti-rust treated. After a period of time, rusting, blistering, and slagging will occur. Even after re-anti-rust treatment (such as painting, etc.), rust problems will still appear after a short time (such as one month). The consequence is that the oxides caused by rusting and the slag containing paint will seriously affect the quality of the hydraulic oil, block the filter in the oil circuit, and even abrade the mirror surface of the taper sleeve, greatly affecting the service life of the oil film bearing.

[0004] In view of this, it is necessary to propose an anti-rust device for the oil cavity of a Morgan bearing in a rolling mill to solve or at least alleviate the above defects. Summary of the Invention

[0005] The main purpose of the present invention is to provide an anti-rust device for the oil cavity of a Morgan bearing in a rolling mill to solve the problem of rusting caused by the lack of anti-rust treatment of Morgan bearings in the prior art.

[0006] To achieve the above object, the present invention provides an anti-rust device for the oil cavity of a Morgan bearing in a rolling mill, including a bearing seat, a taper sleeve, an oil throwing assembly, and an end cover assembly; wherein,

[0007] The taper sleeve is rotatably connected to the bearing seat. The taper sleeve has an installation space inside, and the installation space is used for connecting a support roll. An oil cavity group is recessed in the bearing seat. The oil throwing assembly is connected to the taper sleeve and disposed between the bearing seat and the taper sleeve. A plurality of oil outlet holes are formed in the oil throwing assembly and penetrate through the taper sleeve in the radial direction. The plurality of oil outlet holes are arranged at intervals along the circumferential direction of the oil throwing assembly, and one end of the oil throwing assembly in the axial direction extends to the oil cavity group;

[0008] The end cover assembly is connected to one end of the bearing housing;

[0009] One end of the tapered sleeve close to the end cover assembly protrudes radially outward to form an annular flange, and a plurality of axial through holes are arranged at intervals along the circumferential direction of the annular flange.

[0010] Preferably, the oil slinger assembly includes a first oil slinger and a second oil slinger, and the oil cavity group includes a first oil cavity and a second oil cavity arranged at intervals along the axial direction of the bearing housing; wherein,

[0011] The first oil slinger is connected to one end of the tapered sleeve, and one end of the first oil slinger extends axially to the first oil cavity;

[0012] The second oil slinger is connected to the other end of the tapered sleeve, and one end of the second oil slinger extends axially to the second oil cavity;

[0013] The oil outlet holes are provided on both the first oil slinger and the second oil slinger.

[0014] Preferably, an annular protrusion is formed on the inner side of one end of the first oil slinger close to the tapered sleeve and protrudes radially inward. The annular protrusion is connected to the annular flange, and axial through holes are also provided on the annular protrusion.

[0015] Preferably, a plurality of first connection holes are arranged at intervals along the circumferential direction of the annular flange, and second connection holes corresponding to the first connection holes one by one are provided on the annular protrusion. The first oil slinger is connected to the tapered sleeve by bolts passing through the first connection holes and the second connection holes.

[0016] Preferably, a bushing is further included. The bushing is sleeved on the tapered sleeve and is arranged between the first oil slinger and the second oil slinger.

[0017] Preferably, the end cover assembly includes a first end cover. The first end cover is detachably connected to one end of the bearing housing, and an installation channel for the support roller to pass through is provided on the first end cover.

[0018] Preferably, the end cover assembly further includes a second end cover. The second end cover is detachably connected to the first end cover, and an installation groove for installing the end of the support roller is provided on the second end cover.

[0019] Preferably, a plurality of oil outlet holes arranged at intervals along the axial direction on the first oil slinger form a group of oil outlet hole groups, and multiple groups of the oil outlet hole groups are arranged at intervals along the circumferential direction of the first oil slinger.

[0020] Preferably, the number of oil outlet holes in each oil outlet hole group on the first oil throwing ring is five, and the number of oil outlet hole groups is six.

[0021] Preferably, the aperture of the oil outlet hole is 20 mm to 30 mm.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] An anti-rust device for the oil cavity of a Morgan bearing of a rolling mill provided by the present invention includes a bearing housing, a tapered sleeve, an oil throwing assembly, and an end cover assembly. The tapered sleeve is rotatably connected to the bearing housing. An installation space is provided inside the tapered sleeve for connecting a backup roll. An oil cavity group is recessed in the bearing housing. The oil throwing assembly is connected to the tapered sleeve and disposed between the bearing housing and the tapered sleeve. A plurality of oil outlet holes are formed in the oil throwing assembly and penetrate through the tapered sleeve in the radial direction. The plurality of oil outlet holes are arranged at intervals along the circumferential direction of the oil throwing assembly, and one end of the oil throwing assembly in the axial direction extends to the oil cavity group. The end cover assembly is connected to one end of the bearing housing. One end of the tapered sleeve close to the end cover assembly protrudes radially outward to form an annular flange, and a plurality of axial through holes are formed in the annular flange at intervals along its circumferential direction. In this way, Morgan oil can be introduced through the axial through holes on the annular flange for collection in the entire device to meet the subsequent requirements for Morgan oil spraying. After connecting the Morgan oil, the rotation of the backup roll drives the tapered sleeve and the oil throwing assembly to rotate together, thereby generating centrifugal force to promote the spraying of Morgan oil. The Morgan oil on the surface of the tapered sleeve is sprayed onto the inner surface of the nearby oil cavity group through the oil outlet holes of the oil throwing ring under the action of centrifugal force, forming a continuous bathing effect, which can effectively cut off the erosion of water vapor, achieve the anti-rust effect, extend the service life of the bearing, and reduce the maintenance cost. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0025] Figure 1 It is a three-dimensional assembly schematic diagram of the overall structure in an embodiment of the present invention;

[0026] Figure 2 It is a sectional assembly schematic diagram of the overall structure in an embodiment of the present invention;

[0027] Figure 3 It is a three-dimensional schematic diagram of the tapered sleeve in an embodiment of the present invention;

[0028] Figure 4A three-dimensional schematic diagram of the overall structure in an embodiment of the present invention after removing the bearing housing and the bushing;

[0029] Figure 5 A three-dimensional schematic diagram of the first oil slinger in an embodiment of the present invention;

[0030] Figure 6 A three-dimensional schematic diagram of the second oil slinger in an embodiment of the present invention.

[0031] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings.

[0032] Explanation of the reference numerals in the drawings:

[0033] 10. Bearing housing; 110. Oil cavity group; 111. First oil cavity; 112. Second oil cavity; 120. Bushing; 20. Tapered sleeve; 210. Annular flange; 211. Axial through hole; 212. Second connection hole; 30. Oil slinging assembly; 310. First oil slinger; 311. Annular protrusion; 312. First connection hole; 320. Second oil slinger; 330. Oil outlet hole; 40. End cover assembly; 410. First end cover; 420. Second end cover; 50. Support roller. Detailed implementation manners

[0034] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, the descriptions involving "first", "second", etc. in the present invention are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] Please refer to the attached Figure 1-6 , a rust prevention device for the oil cavity of a Morgan bearing of a rolling mill provided in an embodiment of the present invention includes a bearing housing 10, a tapered sleeve 20, an oil throwing assembly 30, and an end cover assembly 40. First of all, it should be noted that different from most of the components in the prior art that are not rust-proofed, after a period of time, rusting, foaming, and slagging will occur. Even after rust-proof treatment (such as painting), rust problems will still occur after a short period of time (such as one month). The consequence is that the oxides caused by rusting and the slag containing paint will seriously affect the quality of the hydraulic oil, block the filter in the oil circuit, and even abrade the mirror surface of the tapered sleeve 20, greatly affecting the service life of the oil film bearing. The present application solves the above defects in the prior art by providing a rust prevention device for the oil cavity of a Morgan bearing of a rolling mill, specifically as follows:

[0039] The tapered sleeve 20 is rotatably connected to the bearing housing 10. The tapered sleeve 20 has an installation space inside, and the installation space is used for connecting a backup roll 50. An oil cavity group 110 is recessed in the bearing housing 10. The oil throwing assembly 30 is connected to the tapered sleeve 20 and disposed between the bearing housing 10 and the tapered sleeve 20. A plurality of oil outlet holes 330 are formed through the oil throwing assembly 30 along the radial direction of the tapered sleeve 20. The plurality of oil outlet holes 330 are arranged at intervals along the circumferential direction of the oil throwing assembly 30, and one end of the oil throwing assembly 30 in the axial direction extends to the oil cavity group 110; the end cover assembly 40 is connected to one end of the bearing housing 10; an annular flange 210 is convexly provided on one end of the tapered sleeve 20 close to the end cover assembly 40 along its own radial direction, and a plurality of axial through holes 211 are formed in the annular flange 210 at intervals along its own circumferential direction.

[0040] Specifically, the rolling mill Morgan bearing oil chamber rust prevention device in the present application includes a bearing seat 10, a tapered sleeve 20, an oil throwing assembly 30 and an end cover assembly 40. The bearing seat 10 is used for the installation of a support roller 50 and various components, and the tapered sleeve 20 is used for the installation of the support roller 50 to complete positioning and centering. Therefore, the tapered sleeve 20 has an installation space inside, and the cross-sectional shape of the installation space needs to match the support roller 50 to ensure stable installation; the oil throwing assembly 30 is used to throw Morgan oil, which is connected to the tapered sleeve 20, so that when the support roller 50 rotates, the tapered sleeve 20 and the oil throwing assembly 30 installed on the support roller 50 can be driven to rotate together, and the Morgan oil is thrown through the oil outlet 330 provided on the oil throwing assembly 30. The Morgan oil collected on the outer surface of the tapered sleeve 20 is thrown through the oil outlet 330 under the action of the centrifugal force generated by the rotation, After the oil outlet hole 330 is thrown into the oil chamber group 110, it can effectively block the erosion of water vapor and achieve the anti-rust effect. Therefore, one end of the oil throwing component 30 along the axial direction needs to extend to the oil chamber group 110 to facilitate the throwing of Morgan oil, which can make up for the defects of Morgan oil itself, such as high viscosity and short splashing distance, so as to ensure that Morgan oil can be effectively thrown into the oil chamber group 110; the end cover component 40 serves as the end cover of the bearing, and plays the role of axial positioning and sealing and dustproof; and an annular flange 210 is formed at one end of the cone sleeve 20 close to the end cover component 40 along its own radial outward projection, and the annular flange 210 can be used for installation and connection with the oil throwing component 30, and an axial through hole 211 is opened on the annular flange 210 to facilitate the reception of Morgan oil, so as to meet the purpose of collecting Morgan oil, so as to effectively receive continuous Morgan oil to meet the throwing requirements.

[0041] It should be noted that a bushing 120 can be added between the tapered sleeve 20 and the bearing seat 10 to reduce friction, wherein the bushing 120 is fixedly connected to the inner surface of the bearing seat 10 and remains stationary, and the tapered sleeve 20 and the oil throwing assembly 30 can rotate with the support roller 50, so that the Morgan oil between the bushing 120 and the tapered sleeve 20 can be led into the oil throwing assembly 30 through the axial through hole 211 on the oil throwing assembly 30 after flowing out, and the Morgan oil collected in the oil throwing assembly 30 is thrown into the oil chamber group 110 through the oil outlet hole 330 under the action of the rotating centrifugal force.

[0042] As a preferred embodiment of the present invention, the oil slinger assembly 30 includes a first oil slinger 310 and a second oil slinger 320, and the oil chamber group 110 includes a first oil chamber 111 and a second oil chamber 112 arranged at intervals along the axial direction of the bearing seat 10; wherein, the first oil slinger 310 is connected to one end of the taper sleeve 20, and one end of the first oil slinger 310 along the axial direction extends to the first oil chamber 111; the second oil slinger 320 is connected to the other end of the taper sleeve 20, and one end of the second oil slinger 320 along the axial direction extends to the second oil chamber 112; the first oil slinger 310 and the second oil slinger 320 are both provided with the oil outlet hole 330.

[0043] It should be noted that, since the oil chamber group 110 of the bearing seat 10 is divided into a first oil chamber 111 and a second oil chamber 112, both of which are respectively arranged at the two ends of the axial direction, the oil slinger assembly 30 also includes a first oil slinger ring 310 and a second oil slinger ring 320, which are respectively arranged at the first oil chamber 111 and the second oil chamber 112, so as to ensure that Morgan oil is slinged in both oil chambers to achieve a rust-proof effect; wherein, the first oil slinger ring 310 and the second oil slinger ring 320 are respectively connected to the two ends of the tapered sleeve 20 along the axial direction, and one end of the first oil slinger ring 310 needs to extend to the first oil chamber 111 , one end of the second oil slinger 320 needs to extend to the second oil chamber 112, so that the Morgan oil can be smoothly distributed in each oil chamber when being slinged, thereby blocking water vapor erosion. The first oil chamber 111 is arranged close to the end of the support roller 50, which is more susceptible to corrosion damage. Therefore, the size of the first oil chamber 111 is larger than that of the second oil chamber 112 to require a greater anti-corrosion effect. It can be understood that the size of the first oil slinger 310 is also larger than that of the second oil slinger 320, so as to facilitate matching with each oil chamber, and the amount of Morgan oil slinging at the first oil slinger 310 is also larger.

[0044] As a preferred embodiment of the present invention, an annular protrusion 311 is formed on the inner side of one end of the first oil slinger 310 close to the cone sleeve 20 and protrudes radially inward, and the annular protrusion 311 is connected to the annular flange 210, and an axial through hole 211 is also formed on the annular protrusion 311.

[0045] It should be noted that the annular protrusion 311 is used to connect with the annular flange 210 of the cone sleeve 20, so that the first oil slinger 310 is more convenient to install on the cone sleeve 20, and the processing and connection are more convenient; it can be understood that in order to facilitate the connection of Morgan oil, the axial through hole 211 on the annular protrusion 311 is arranged in a one-to-one correspondence with the axial through hole 211 on the annular flange 210.

[0046] As a preferred embodiment of the present invention, a plurality of first connection holes 312 are provided on the annular flange 210 at intervals along its circumferential direction. Second connection holes 212 corresponding to the first connection holes 312 one by one are provided on the annular protrusion 311. The first thrower ring 310 is connected to the tapered sleeve 20 by bolts passing through the first connection holes 312 and the second connection holes 212.

[0047] It should be noted that the first connection holes 312 and the second connection holes 212 facilitate the connection of the annular protrusion 311 to the annular flange 210 by means of bolt connection. Such an operation is relatively convenient and easy to disassemble, which is suitable for later maintenance and replacement of the first thrower ring 310. The first connection holes 312 and the second connection holes 212 are arranged in one-to-one correspondence. Here, the corresponding arrangement means that the first connection holes 312 and the second connection holes 212 have the same size and shape and are coaxially arranged.

[0048] Further, the end cover assembly 40 includes a first end cover 410. The first end cover 410 is detachably connected to one end of the bearing seat 10, and the first end cover 410 is provided with an installation channel for the support roller 50 to pass through.

[0049] It should be noted that the first end cover 410 can play a role in axially positioning the support roller 50. It is detachably connected to the bearing seat 10 by bolts, so it is convenient for disassembly and assembly. The installation channel it has can facilitate the support roller 50 to pass through, and then a sealing treatment is carried out in combination with the second end cover 420.

[0050] Further, the end cover assembly 40 further includes a second end cover 420. The second end cover 420 is detachably connected to the first end cover 410, and the second end cover 420 is provided with an installation groove for installing the end of the support roller 50.

[0051] It should be understood that the second end cover 420 plays a role in sealing and dust prevention to protect the end of the support roller 50. It is detachably connected to the first end cover 410 by bolts, and the installation groove it has can enclose and protect the end of the support roller 50.

[0052] Further, a plurality of oil outlet holes 330 arranged at intervals along the axial direction on the first thrower ring 310 form a group of oil outlet holes 330. A plurality of groups of the oil outlet holes 330 are arranged at intervals along the circumferential direction of the first thrower ring 310.

[0053] It should be noted that, since the Morgan oil demand of the first oil slinger ring 310 is relatively large, multiple oil outlet holes 330 arranged at intervals along the axial direction on the first oil slinger ring 310 form a group of oil outlet holes 330, so as to facilitate increasing the oil output. And arranging multiple groups of the oil outlet hole groups 330 at intervals along the circumferential direction of the first oil slinger ring 310 can ensure that the oil output is evenly distributed when it is sprinkled into the first oil cavity 111.

[0054] Further, the number of the oil outlet holes 330 in each group of the oil outlet hole groups 330 on the first oil slinger ring 310 is five, and the number of the oil outlet hole groups 330 is six.

[0055] It should be noted that the number of the oil outlet holes 330 can be selected according to the axial length dimension of the oil slinger ring and the required oil output, and the number of the oil outlet hole groups 330 can be set according to the distribution range of the oil output sprinkling. In a preferred embodiment of the present application, the number of the oil outlet holes 330 in each group of the oil outlet hole groups 330 on the first oil slinger ring 310 is five, and the number of the oil outlet hole groups 330 is six. Those skilled in the art can select according to actual needs.

[0056] Further, the aperture of the oil outlet hole 330 is 20 mm to 30 mm.

[0057] It can be understood that the aperture size of the oil outlet hole 330 determines the oil output and the oil output efficiency. Preferably, the aperture of the oil outlet hole 330 can be set to 20 mm to 30 mm. Those skilled in the art can set it according to specific situations.

[0058] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A rolling mill Morgan bearing oil chamber rust prevention device, characterized in that: It includes a bearing seat, a taper sleeve, an oil throwing assembly and an end cover assembly; wherein, The cone sleeve is rotatably connected to the bearing seat, and the cone sleeve has an installation space inside, and the installation space is used for connecting the support roller. The bearing seat is recessed to form an oil cavity group, and the oil throwing assembly is connected to the cone sleeve to be arranged between the bearing seat and the cone sleeve. The oil throwing assembly is provided with a plurality of oil outlet holes that penetrate the cone sleeve in a radial direction, and the plurality of oil outlet holes are arranged at intervals along the circumference of the oil throwing assembly, and one end of the oil throwing assembly along the axial direction extends to the oil cavity group; The end cover assembly is connected to one end of the bearing seat; An end of the cone sleeve close to the end cover assembly is radially outwardly protruded to form an annular flange, and the annular flange is provided with a plurality of axial through holes spaced apart along the circumference thereof.

2. The rolling mill Morgan bearing oil chamber rust prevention device according to claim 1, characterized in that: The oil slinger assembly includes a first oil slinger ring and a second oil slinger ring, and the oil chamber group includes a first oil chamber and a second oil chamber spaced apart along the axial direction of the bearing seat; wherein, The first oil slinger is connected to one end of the taper sleeve, and one end of the first oil slinger along the axial direction extends to the first oil chamber; The second oil slinger is connected to the other end of the taper sleeve, and one end of the second oil slinger along the axial direction extends to the second oil chamber; The first oil slinger and the second oil slinger are both provided with the oil outlet holes.

3. The rolling mill Morgan bearing oil chamber rust prevention device according to claim 2, characterized in that: An annular protrusion is formed on the inner side of one end of the first oil slinger close to the cone sleeve and protrudes inwardly along its own radial direction. The annular protrusion is connected to the annular flange, and an axial through hole is also formed on the annular protrusion.

4. The rolling mill Morgan bearing oil chamber rust prevention device according to claim 3, characterized in that: The annular flange is provided with a plurality of first connecting holes spaced apart along its circumference, the annular protrusion is provided with second connecting holes corresponding to the first connecting holes one by one, and the first oil slinger is connected to the cone sleeve by bolts penetrating the first connecting holes and the second connecting holes.

5. The rolling mill Morgan bearing oil chamber rust prevention device according to claim 2, characterized in that: It also includes a bushing, which is sleeved on the cone sleeve and arranged between the first oil slinger and the second oil slinger.

6. The rolling mill Morgan bearing oil chamber rust prevention device according to claim 1, characterized in that: The end cover assembly comprises a first end cover, the first end cover is detachably connected to one end of the bearing seat, and the first end cover is provided with an installation channel for the support roller to pass through.

7. The rolling mill Morgan bearing oil chamber rust prevention device according to claim 6, characterized in that: The end cover assembly also includes a second end cover, which is detachably connected to the first end cover and has a mounting groove for mounting the end of the support roller.

8. The rolling mill Morgan bearing oil chamber rust prevention device according to claim 2, characterized in that: A plurality of oil outlet holes arranged at intervals along the axial direction on the first oil slinger constitutes an oil outlet hole group, and a plurality of oil outlet hole groups are arranged at intervals along the circumference of the first oil slinger.

9. The rolling mill Morgan bearing oil chamber rust prevention device according to claim 8, characterized in that: The number of oil outlet holes in each group of the oil outlet holes on the first oil slinger is five, and the number of the oil outlet hole groups is six.

10. The rolling mill Morgan bearing oil chamber rust prevention device according to claim 1, characterized in that: The diameter of the oil outlet hole is 20 mm to 30 mm.

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