Self-lubricating structure of high-strength bearing of automobile

Abstract

The utility model provides an automobile high-strength bearing self-lubricating structure. The automobile high-strength bearing self-lubricating structure comprises an outer ring, a sliding ring and a rotating ring. An inner ring groove is formed in the inner ring wall of the outer ring, a plurality of separation ribs are arranged in the inner ring groove, and the separation ribs divide the inner ring groove into a plurality of oil storage grooves; annular limiting grooves are symmetrically formed in the two opposite sides of the sliding ring respectively, annular limiting ribs are symmetrically arranged on the two opposite sides of a notch of the inner annular groove respectively, and the limiting ribs on the two sides of the sliding ring are clamped in the limiting grooves in the two sides of the inner annular groove respectively. Non-slip mats are arranged on the surfaces of the two opposite sides of the limiting rib, and the non-slip mats are attached to the inner groove walls of the limiting grooves; an oil outlet hole penetrating through the sliding ring is formed in the inner ring wall of the sliding ring; an outer ring groove is formed in the outer ring wall of the outer ring, a plurality of oil injection holes are formed in the groove bottom wall of the outer ring groove, and the oil injection holes communicate with the oil storage grooves correspondingly; the rotating ring is arranged in the outer ring groove in a sleeved mode, the rotating ring can rotate in the outer ring groove, an involution hole penetrating through the rotating ring is formed in the rotating ring, and the involution hole and the oil injection hole can be communicated or staggered by rotating the rotating ring.

Description

Technical Field

[0001] The present application relates to the technical field of bearing lubrication, and in particular to a self-lubricating structure of a high-strength automobile bearing. Background Art

[0002] Bearings are key components for maintaining the normal operation of vehicles. During use, bearing lubrication is crucial. Regular manual lubrication of the bearings can reduce friction and wear and prevent sticking. However, manual lubrication can shorten bearing life if lubrication is not added promptly. Even though some electric vehicle bearings can be automatically lubricated, the amount of lubricant added each time is often inaccurate, leading to over- or under-addition, which can affect lubrication effectiveness.

[0003] To overcome these drawbacks, a Chinese utility model patent, granted with publication number CN219452694U, discloses a self-lubricating structure for an electric vehicle bearing. When the friction between the steel ball and the outer ring is excessive during use, the rotation of the steel ball causes the I-shaped slip ring to rotate. When the lubrication hole is connected to the lubricating oil chamber, the lubricating oil in the lubricating oil chamber enters the space between the inner and outer rings of the electric vehicle bearing through the lubrication hole, enabling the electric vehicle bearing to self-lubricate. When all the lubricating oil in the lubricating oil chamber is used up, the outer ring of the bearing is removed, and lubricating oil is added to the lubricating oil chamber through the filling hole. This allows the bearing to be automatically refilled when needed, ensuring more timely lubrication of the bearing, extending its service life, and reducing the frequency of manual refilling by the user. The accurate amount of lubricating oil added each time is also ensured, avoiding over- or under-addition, thereby improving the bearing's lubrication effect.

[0004] The self-lubricating structure of the electric vehicle bearing described in the Chinese utility model patent with the authorization announcement number CN219452694U adopts the method of sticking a sealing tape on each filling hole and then putting a rubber ring on the outer surface of the sealing surface to seal the filling hole. When it is necessary to add lubricating oil, the rubber ring is removed, the sealing tape is torn off, and an external syringe is inserted into the filling hole to add lubricating oil to the lubricating oil cavity (see paragraphs 0023-0025 of the specification and the appendix of the specification). Figure 2 ). This will lead to the following problems:

[0005] 1. When the car is running and in a hot state, the adhesive of the sealing tape is easily softened and loses its viscosity due to the influence of rising temperature. The rubber ring is easily aged, cracked or even broken due to the influence of rising temperature, which reduces the sealing performance of the liquid filling hole.

[0006] 2. Lubricating oil can penetrate into the tiny gap between the adhesive and the bonding surface, reducing the adhesion between the adhesive and the inner arc wall of the groove.

[0007] 3. When adding and tearing off the sealing tape, the adhesive on the tape is likely to remain on the inner arc wall of the groove. The residual adhesive needs to be removed before the sealing tape can be used to seal the fuel hole again.

[0008] 4. Each time you add liquid, you need to remove the rubber ring, remove the sealing tape and residual glue at each liquid adding hole, add lubricating oil, seal each liquid adding hole with sealing tape, and then put on the rubber ring. The operation process is cumbersome and the operation efficiency is low. Utility Model Content

[0009] The embodiment of the present application provides a self-lubricating structure for a high-strength automobile bearing, comprising an outer ring, a sliding ring, and a rotating ring;

[0010] An inner ring groove is provided on the inner ring wall of the outer ring, and a plurality of dividing ribs are provided in the inner ring groove. The plurality of dividing ribs are arranged at intervals along the circumference of the inner ring groove, and the plurality of dividing ribs divide the inner ring groove into a plurality of oil storage grooves;

[0011] Annular limiting grooves are symmetrically provided on opposite sides of the slip ring, and annular limiting ribs are symmetrically provided on opposite sides of the notch of the inner ring groove. The limiting ribs on both sides of the slip ring are respectively clamped in the limiting grooves on both sides of the inner ring groove, so that the slip ring is slidably provided on the inner side of the outer ring.

[0012] Anti-slip pads are provided on opposite sides of the limiting rib, and the anti-slip pads are in contact with the inner wall of the limiting groove; the inner wall of the sliding ring is provided with an oil outlet hole that passes through the sliding ring;

[0013] The outer ring wall of the outer ring is provided with an outer ring groove, and the bottom wall of the outer ring groove is provided with a plurality of oil injection holes, and the plurality of oil injection holes are respectively connected to the plurality of oil storage tanks;

[0014] The rotating ring is sleeved in the outer ring groove and can rotate in the outer ring groove. The rotating ring is provided with a matching hole passing through the rotating ring. The matching hole can be connected to or staggered with the oil filling hole by rotating the rotating ring.

[0015] In one possible implementation manner, in the automotive high-strength bearing self-lubricating structure provided in an embodiment of the present application, the inner hole wall of the mating hole has a thread, and a stud is connected to the inner thread of the mating hole.

[0016] In one possible embodiment, the automotive high-strength bearing self-lubricating structure provided in the embodiment of the present application is provided with a plurality of anti-skid grooves on the outer ring wall of the rotating ring, and the anti-skid grooves extend along the axis of the rotating ring, and the plurality of anti-skid grooves are evenly arranged along the circumference of the rotating ring.

[0017] In one possible implementation manner, in the automotive high-strength bearing self-lubricating structure provided in an embodiment of the present application, a sealing ring is provided in the outer ring groove.

[0018] In one possible implementation manner, in the automotive high-strength bearing self-lubricating structure provided in an embodiment of the present application, a sealing groove is provided on each side of the bottom of the outer ring groove, and the sealing ring is provided in the sealing groove.

[0019] Beneficial Effects: Compared to the Chinese utility model patent with authorization announcement number CN219452694U, this system eliminates the need for sealing tape and rubber rings, eliminating issues such as adhesive softening, adhesive residue, and rubber ring breakage. Furthermore, each oil injection port can be opened and closed simply by turning the rotating ring, eliminating the need to remove and apply sealing tape individually, resulting in a simple and efficient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 This is a schematic structural diagram of a high-strength self-lubricating bearing structure for an automobile provided in an embodiment of the present application;

[0022] Figure 2 This is an exploded schematic diagram of the self-lubricating structure of a high-strength bearing for an automobile provided in an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the outer ring of the self-lubricating structure of a high-strength bearing for an automobile provided in an embodiment of the present application;

[0024] Figure 4 This is a schematic longitudinal section diagram of a high-strength self-lubricating bearing structure for an automobile provided in an embodiment of the present application;

[0025] Figure 5 This is a cross-sectional schematic diagram of a self-lubricating structure for a high-strength bearing in an automobile provided by an embodiment of the present application;

[0026] Figure 6 yes Figure 5 Enlarged schematic diagram of point A in the middle.

[0027] Description of Reference Numerals

[0028] 10-outer ring;

[0029] 11-inner ring groove;

[0030] 12-separating ribs;

[0031] 13- oil storage tank;

[0032] 14-limiting ribs;

[0033] 15-outer ring groove;

[0034] 16- oil filling hole;

[0035] 20-slip ring;

[0036] 21-limiting slot;

[0037] 22-anti-slip mat;

[0038] 23- oil outlet hole;

[0039] 30-rotating ring;

[0040] 31-apposition hole;

[0041] 32-anti-slip groove;

[0042] 40-stud;

[0043] 50-Sealing ring. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0045] The self-lubricating structure of the electric vehicle bearing, described in the Chinese utility model patent with authorization announcement number CN219452694U, uses a sealing tape to stick on each filling hole, and then a rubber ring is placed on the outer surface of the sealing surface to seal the filling hole. When it is necessary to add lubricant, the rubber ring is removed, the sealing tape is torn off, and an external syringe is inserted into the filling hole to add lubricant to the lubricating oil cavity (see paragraphs 0023-0025 of the specification and the appendix of the specification). Figure 2 ). This will lead to the following problems:

[0046] 1. When the car is running and in a hot state, the adhesive of the sealing tape is easily softened and loses its viscosity due to the influence of rising temperature. The rubber ring is easily aged, cracked or even broken due to the influence of rising temperature, which reduces the sealing performance of the liquid filling hole.

[0047] 2. Lubricating oil can penetrate into the tiny gap between the adhesive and the bonding surface, reducing the adhesion between the adhesive and the inner arc wall of the groove.

[0048] 3. When adding and tearing off the sealing tape, the adhesive on the tape is likely to remain on the inner arc wall of the groove. The residual adhesive needs to be removed before the sealing tape can be used to seal the fuel hole again.

[0049] 4. Each time you add liquid, you need to remove the rubber ring, remove the sealing tape and residual glue at each liquid adding hole, add lubricating oil, seal each liquid adding hole with sealing tape, and then put on the rubber ring. The operation process is cumbersome and the operation efficiency is low.

[0050] The invention is based on the problem of the self-lubricating structure of the electric vehicle bearing recorded in the Chinese utility model patent with authorization announcement number CN219452694U.

[0051] See also Figures 1 to 6 As shown, the embodiment of the present application provides a high-strength self-lubricating bearing structure for an automobile, comprising an outer ring 10, a sliding ring 20 and a rotating ring 30, wherein:

[0052] The inner ring wall of the outer ring 10 is provided with an inner ring groove 11, and a plurality of dividing ribs 12 are provided in the inner ring groove 11. The plurality of dividing ribs 12 are arranged at intervals along the circumference of the inner ring groove 11. The plurality of dividing ribs 12 divide the inner ring groove 11 into a plurality of oil storage grooves 13, and each oil storage groove 13 can store a fixed amount of lubricating oil.

[0053] Annular limiting grooves 21 are symmetrically provided on opposite sides of the slip ring 20, and annular limiting ribs 14 are symmetrically provided on opposite sides of the notch of the inner ring groove 11. The limiting ribs 14 on both sides of the slip ring 20 are respectively stuck in the limiting grooves 21 on both sides of the inner ring groove 11, so that the slip ring 20 is slidably provided on the inner side of the outer ring 10. The outer wall of the slip ring 20 and the inner wall of the oil storage tank 13 enclose the lubricating oil in the oil storage tank 13.

[0054] Anti-slip pads 22 are provided on opposite sides of the limiting rib 14. These pads 22 engage the inner wall of the limiting groove 21 and increase the friction between the slip ring 20 and the outer ring 10, preventing the slip ring 20 from rotating relative to the outer ring 10. The inner wall of the slip ring 20 is provided with an oil outlet 23 extending through the slip ring 20 for releasing lubricating oil from the oil reservoir 13.

[0055] The outer ring 10 has an outer ring groove 15 defined on its outer ring wall. The bottom wall of the outer ring groove 15 is provided with a plurality of oil injection holes 16, which are connected to the plurality of oil reservoirs 13. A rotating ring 30 is sleeved within the outer ring groove 15 and is rotatable therein. A mating hole 31 is provided through the rotating ring 30, which allows the mating hole 31 to be connected to or offset from the oil injection hole 16 by rotating the rotating ring 30.

[0056] The high-strength, self-lubricating bearing structure for an automobile provided in the present embodiment operates in the same manner as the self-lubricating bearing structure for an electric vehicle described in Chinese Utility Model Patent No. CN219452694U. The main principle is as follows: when the vehicle is in operation, the inner ring of the bearing drives the steel balls within the bearing to rotate. During normal use, the friction between the steel balls and the outer ring 10 of the bearing is too low, so the rotation of the steel balls does not cause the slip ring 20 to rotate. However, when the friction between the steel balls and the slip ring 20 is too high, the rotation of the steel balls drives the slip ring 20 to overcome the friction between the anti-skid pad 22 and the outer ring 10, causing the slip ring 20 and the anti-skid pad 22 to rotate relative to the outer ring 10. When the oil outlet 23 is connected to the oil reservoir 13, the lubricating oil in the oil reservoir 13 flows from the oil outlet 23 into the space between the inner and outer rings 10 of the bearing, lubricating the bearing. Since each oil reservoir 13 has the same capacity, the amount of lubricating oil added each time is accurate, avoiding overfilling or underfilling.

[0057] The difference between this invention and the Chinese utility model patent with authorization publication number CN219452694U lies in the lubricant addition process. The self-lubricating structure for a high-strength automotive bearing provided in this embodiment of the present invention involves sequentially rotating the rotating ring 30 so that the mating holes 31 on the rotating ring 30 align and connect with the oil filling holes 16 on the outer ring 10. A syringe needle is then inserted into each oil filling hole 16 to sequentially add lubricant to each oil reservoir 13. After the lubricant is added, the rotating ring 30 is rotated so that the mating holes 31 on the rotating ring 30 are aligned with the oil filling holes 16 on the outer ring 10, thereby closing the oil filling holes 16.

[0058] Compared to the Chinese utility model patent with authorization publication number CN219452694U, this system eliminates the need for sealing tape and rubber rings, eliminating issues such as adhesive softening, adhesive residue, and rubber ring breakage. Furthermore, each oil injection port can be opened and closed simply by rotating the rotating ring 30, eliminating the need to remove and apply sealing tape one by one. This simplifies the operation and improves efficiency.

[0059] See also Figure 1 and Figure 2As shown, specifically, the inner wall of the mating hole 31 has a thread, and a stud 40 is connected to the inner thread of the mating hole 31. By screwing in the stud 40, the mating hole 31 can be sealed and the rotating ring 30 can be fastened to the surface of the outer ring 10. When the mating hole 31 is to be opened, it is only necessary to loosen the stud 40 and remove the stud 40, which is very convenient to operate.

[0060] The outer ring wall of the rotating ring 30 is provided with a plurality of anti-skid grooves 32, which extend along the axis of the rotating ring 30 and are evenly arranged along the circumference of the rotating ring 30. The anti-skid grooves 32 can facilitate hand gripping and tool clamping, making it easier to rotate the rotating ring 30.

[0061] A sealing groove is provided on both sides of the bottom of the outer ring groove 15 , and a sealing ring 50 is provided in the sealing groove. The sealing ring 50 is used to prevent lubricating oil from leaking from the gap between the rotating ring 30 and the outer ring 10 .

[0062] In the description of the embodiments of the present application, it should be understood that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. The orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply 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 on this application. In the description of this application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0063] The terms "first," "second," "third," "fourth," etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A self-lubricating structure for a high-strength automobile bearing, characterized in that: Including outer ring, slip ring and rotating ring; An inner ring groove is provided on the inner ring wall of the outer ring, and a plurality of dividing ribs are provided in the inner ring groove. The plurality of dividing ribs are arranged at intervals along the circumference of the inner ring groove, and the plurality of dividing ribs divide the inner ring groove into a plurality of oil storage grooves; Annular limiting grooves are symmetrically provided on opposite sides of the slip ring, and annular limiting ribs are symmetrically provided on opposite sides of the notch of the inner ring groove. The limiting ribs on both sides of the slip ring are respectively clamped in the limiting grooves on both sides of the inner ring groove, so that the slip ring is slidably provided on the inner side of the outer ring. Anti-slip pads are provided on opposite sides of the limiting rib, and the anti-slip pads are in contact with the inner wall of the limiting groove; the inner wall of the sliding ring is provided with an oil outlet hole that passes through the sliding ring; The outer ring wall of the outer ring is provided with an outer ring groove, and the bottom wall of the outer ring groove is provided with a plurality of oil injection holes, and the plurality of oil injection holes are respectively connected to the plurality of oil storage tanks; The rotating ring is sleeved in the outer ring groove and can rotate in the outer ring groove. The rotating ring is provided with a matching hole passing through the rotating ring. The matching hole can be connected to or staggered with the oil filling hole by rotating the rotating ring.

2. The automotive high-strength bearing self-lubricating structure according to claim 1, characterized in that: The inner hole wall of the mating hole has a thread, and the inner thread of the mating hole is connected with a stud.

3. The high-strength self-lubricating bearing structure for automobiles according to claim 1, characterized in that: The outer ring wall of the rotating ring is provided with a plurality of anti-slip grooves, the anti-slip grooves extending along the axis of the rotating ring, and the plurality of anti-slip grooves are evenly arranged along the circumference of the rotating ring.

4. The automotive high-strength bearing self-lubricating structure according to claim 1, characterized in that: A sealing ring is sleeved in the outer ring groove.

5. The automobile high-strength bearing self-lubricating structure according to claim 4, characterized in that: A sealing groove is provided on each side of the bottom of the outer ring groove, and the sealing ring is provided in the sealing groove.

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