Rolling mill bearing

Abstract

The utility model provides a rolling mill bearing and aims to solve the technical problem that the existing rolling mill bearing is poor in lubricating effect and cooling effect. The rolling mill bearing comprises an inner ring which is of an annular structure, and a plurality of oil guide grooves are formed in one end of the inner ring; the rotor sleeves the outer surface of the inner ring; the rotor is sleeved with the outer ring, and a plurality of oil guide holes are formed in the outer ring; wherein two ends of the oil guide grooves are respectively positioned on the inner surface and the outer surface of the inner ring, and the oil guide holes penetrate through the inner surface and the outer surface of the outer ring. The plurality of oil guide holes are formed in the outer ring, so that lubricating oil gas can enter the space between the inner ring and the outer ring through the oil guide holes and make contact with the rotor, and the lubricating effect is achieved. And a plurality of oil guide grooves are formed in one end of the inner ring, so that the lubricating oil gas with heat can smoothly flow out from the end part of the inner ring, the heat generated by the whole rolling mill bearing is taken away, and new lubricating oil gas is smoothly replaced in the rolling mill bearing.

Description

Technical Field

[0001] The utility model relates to a bearing, in particular to a rolling mill bearing. Background Art

[0002] Rolling mill bearings are used in the rolling industry, namely the rolling of non-ferrous metals, ferrous metals and non-metal products. They are bearings used at the roll diameter of the rolling roll system and on the drum. Currently, most of them use oil-gas or grease for lubrication and cooling.

[0003] Due to the compact structure inside the rolling mill bearing, the current lubricating oil-gas has poor fluidity inside the bearing, resulting in poor lubrication and cooling effects of the entire rolling mill bearing. Summary of the Utility Model

[0004] Aiming at the technical problem of poor lubrication and cooling effects of the existing rolling mill bearings, the utility model provides a rolling mill bearing, which improves the fluidity of the lubricating oil-gas by arranging oil guiding grooves on the inner ring of the rolling mill bearing and oil guiding holes on the outer ring, so that it has better lubrication and cooling effects.

[0005] The technical solution of the utility model is as follows:

[0006] A rolling mill bearing, comprising:

[0007] An inner ring, which is of a ring structure and has a plurality of oil guiding grooves at one end thereof;

[0008] A rotor, sleeved on the outer surface of the inner ring;

[0009] An outer ring, sleeved on the rotor, and the outer ring has a plurality of oil guiding holes;

[0010] Wherein, both ends of the oil guiding groove are respectively located on the inner surface and the outer surface of the inner ring, and the oil guiding hole penetrates through the inner and outer surfaces of the outer ring.

[0011] Optionally, a plurality of oil guiding grooves are provided at both ends of the inner ring.

[0012] Optionally, a flow channel is further provided on the outer surface of the inner ring.

[0013] Optionally, the flow channel is of a spiral structure.

[0014] Optionally, both ends of the flow channel are respectively butted with the oil guiding grooves at both ends of the inner ring.

[0015] Optionally, the number of oil guiding grooves at both ends of the inner ring is equal, and the number of flow channels is equal to the number of oil guiding grooves at one end of the inner ring.

[0016] Optionally, the rotor includes a support frame and rollers arranged on the support frame. The support frame has a plurality of mounting grooves penetrating through its inner and outer sides, and each mounting groove is provided with a roller.

[0017] Optionally, all the installation grooves are evenly distributed on the support frame.

[0018] Optionally, an oil-repellent hole is provided between two adjacent installation grooves.

[0019] Optionally, a plurality of oil drainage grooves are provided on the inner surface of the outer ring, and an oil drainage groove is correspondingly provided at the end of each oil guiding hole.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] By providing a plurality of oil guiding holes on the outer ring, lubricating oil and gas can enter between the inner ring and the outer ring through the oil guiding holes and contact the rotor, achieving the lubrication effect. Then, a plurality of oil guiding grooves are provided at one end of the inner ring, so that the lubricating oil and gas with heat can flow out smoothly from the end of the inner ring, thereby taking away the heat generated by the entire rolling mill bearing and smoothly replacing the lubricating oil and gas inside the rolling mill bearing with new ones.

[0022] In this technical solution, by providing the oil guiding holes and the oil guiding grooves, the fluidity of the oil and gas in the entire rolling mill bearing is improved, thereby improving the lubrication effect and the cooling effect of the oil and gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0025] Figure 2 is a schematic three-dimensional structure diagram of the inner ring;

[0026] Figure 3 is a schematic three-dimensional structure diagram of the rotor;

[0027] Figure 4 is a schematic three-dimensional structure diagram of the outer ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0029] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "attachment", "fixation" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0031] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0032] Embodiment:

[0033] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4 This embodiment discloses a rolling mill bearing, including an inner ring 10, a rotor 20, and an outer ring 30. Among them, the rotor 20 is sleeved outside the inner ring 10, and the outer ring 30 is sleeved outside the inner ring 10.

[0034] Specifically, the inner ring 10 is of an annular structure. A plurality of oil guiding grooves 11 are provided at one end of the inner ring 10. The oil guiding grooves 11 are concave structures at the end of the inner ring 10, and the length direction of the oil guiding grooves 11 is perpendicular to the axis of the inner ring 10. Both ends of the oil guiding grooves 11 are located on the inner surface and the outer surface of the inner ring 10 respectively.

[0035] The rotor 20 is also of an annular structure. The rotor 20 is sleeved on the outer surface of the outer ring 30, so that the axis of the rotor 20 is collinear with the axis of the outer ring 30, and the rotor 20 can rotate freely on the outer surface of the inner ring 10.

[0036] The outer ring 30 is also a ring structure. The outer ring 30 is coaxially sleeved outside the rotor 20, such that the inner side of the rotor 20 contacts the outer surface of the inner ring 10, and the outer side of the rotor 20 contacts the inner surface of the outer ring 30. At the same time, the axis of the outer ring 30 is collinear with the axis of the inner ring 10.

[0037] A number of oil guide holes 31 are provided on the outer ring 30. Both ends of the oil guide hole 31 are respectively located on the inner side surface and the outer side surface of the outer ring 30, such that the oil guide hole 31 penetrates through the inside and outside of the outer ring 30.

[0038] Preferably, the oil guide holes 31 are annularly distributed in the middle of the outer ring 30.

[0039] In this embodiment, a number of oil guide holes 31 are provided on the outer ring 30, such that the lubricating oil and gas can enter between the inner ring 10 and the outer ring 30 through the oil guide holes 31 and contact the rotor 20 to achieve the lubrication effect. Then, a number of oil guide grooves 11 are provided at one end of the inner ring 10, such that the lubricating oil and gas with heat can smoothly flow out from the end of the inner ring 10, thereby taking away the heat generated by the entire rolling mill bearing and smoothly replacing the lubricating oil and gas inside the rolling mill bearing with new ones.

[0040] In this technical solution, by providing the oil guide holes 31 and the oil guide grooves 11, the fluidity of the oil and gas in the entire rolling mill bearing is improved, thereby improving the lubrication effect and the cooling effect of the oil and gas.

[0041] In one specific embodiment:

[0042] A number of oil guide grooves 11 are provided at both ends of the inner ring 10, and the number of oil guide grooves 11 at both ends of the inner ring 10 is equal.

[0043] In addition, a number of flow channels 12 are provided on the outer surface of the inner ring 10, and the number of flow channels 12 is equal to the number of oil guide grooves 11 at one end of the inner ring 10.

[0044] Both ends of the flow channel 12 are located at both ends of the inner ring 10 and are respectively docked with an oil guide groove 11.

[0045] In this embodiment, by adding the oil guide grooves 11 and the flow channels 12 on the inner ring 10, the fluidity of the oil and gas between the inner ring 10 and the outer ring 30 is further improved.

[0046] Preferably, the flow channels 12 are spirally distributed on the outer surface of the outer ring 30, and the two oil guide grooves 11 at both ends of the flow channel 12 are adjacent in the projection on the plane perpendicular to the axis of the inner ring 10. By setting the flow channels 12 as a spiral structure, the length of the flow channels 12 is increased, the flow path of the oil and gas is improved, and the cooling effect on the rolling mill bearing is improved.

[0047] In another specific embodiment:

[0048] The rotor 20 includes a support frame 21 and rollers 22. Among them, the support frame 21 is of an annular structure. There are several mounting grooves penetrating through its inside and outside on the support frame 21. The length direction of the mounting grooves is consistent with the axial direction of the support frame 21, and all the mounting grooves are evenly distributed in a ring shape on the support frame 21. In addition, a roller 22 is rotatably arranged in each mounting groove, and both sides of the roller 22 protrude from the inner side and the outer side of the support frame 21 respectively.

[0049] Preferably, an oil drainage hole is provided between two adjacent mounting grooves.

[0050] In this embodiment, the position of the roller 22 is restricted by the support frame 21, and then by setting the oil drainage holes, the smoothness of the flow of oil and gas between the two sides of the rotor 20 can be improved.

[0051] In another specific embodiment:

[0052] Several oil drainage grooves 32 are provided on the inner surface of the outer ring 30. One oil drainage groove 32 is correspondingly provided at the end of each oil guiding hole 31. The middle part of the oil drainage groove 32 is butted against the end of the oil guiding hole 31, and the depth of the oil drainage groove 32 linearly decreases from the middle part to both ends.

[0053] In this embodiment, by providing the oil drainage grooves 32 on the inner surface of the outer ring 30, the oil and gas entering the inside of the outer ring 30 can contact more rollers 22 faster, so as to improve the lubrication and cooling effects.

[0054] The above-described embodiments only represent the specific implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A rolling mill bearing, characterized in that, Comprising: An inner ring, which is of a ring structure and has a plurality of oil guiding grooves at one end thereof; A rotor, sleeved on the outer surface of the inner ring; An outer ring, sleeved on the rotor, and the outer ring has a plurality of oil guiding holes; Wherein, both ends of the oil guiding groove are respectively located on the inner surface and the outer surface of the inner ring, and the oil guiding hole penetrates through the inner and outer surfaces of the outer ring.

2. The rolling mill bearing according to claim 1, characterized in that, A plurality of oil guiding grooves are provided at both ends of the inner ring.

3. The rolling mill bearing according to claim 2, wherein A flow channel is further provided on the outer surface of the inner ring.

4. The rolling mill bearing according to claim 3, characterized in that, The flow channel is of a spiral structure.

5. The rolling mill bearing according to claim 4, characterized in that, Both ends of the flow channel are respectively butted with the oil guiding grooves at both ends of the inner ring.

6. The rolling mill bearing according to any one of claims 3-5, characterized in that, The number of oil guiding grooves at both ends of the inner ring is equal, and the number of flow channels is equal to the number of oil guiding grooves at one end of the inner ring.

7. The rolling mill bearing according to claim 1, wherein The rotor includes a support frame and rollers provided on the support frame. The support frame has a plurality of mounting grooves penetrating through its inner and outer sides, and one roller is provided in each mounting groove.

8. The rolling mill bearing according to claim 7, characterized in that, All the mounting grooves are evenly distributed on the support frame.

9. The rolling mill bearing according to claim 7, characterized in that, An oil drainage hole is provided between two adjacent mounting grooves.

10. The rolling mill bearing according to claim 1, characterized in that, A plurality of oil drainage grooves are provided on the inner surface of the outer ring, and one oil drainage groove is correspondingly provided at the end of each oil guiding hole.

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