Enhanced durable guide bearing

Abstract

The utility model relates to the technical field of bearings, in particular to an enhanced durable guide bearing. Comprising a bearing outer ring, a plurality of rolling bodies arranged on the inner side of the bearing outer ring, a maintaining assembly arranged on the inner side of the bearing outer ring and used for maintaining stable movement of the rolling bodies, and a bearing inner ring arranged on the inner side of the maintaining assembly. The annular oil seal pieces are arranged at the two ends of the bearing outer ring and used for sealing the bearing outer ring, the snap springs are arranged at the two ends of the bearing outer ring and used for preventing the annular oil seal pieces from falling off, and first arc-shaped grooves for the rolling bodies to walk are symmetrically formed in the inner side of the bearing outer ring; an oil groove used for storing lubricating oil is formed in the outer circumferential face of the bearing outer ring, and a plurality of oil holes are formed in the oil groove at equal intervals. Lubricating oil is added to the surface of the rolling body, so that friction between the rolling body and the first arc-shaped groove is reduced. The problem that lubricating oil cannot be added during operation of the bearing is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, concretely relates to a kind of enhanced durable guide bearing. BACKGROUND

[0002] Durable bearing is a kind of bearing specially designed for long time, high load operation, to ensure the stability and durability of mechanical system. It is mainly composed of inner and outer rings, rolling elements (such as steel balls or rollers), retainer and special durable coating or treatment layer. Inner and outer rings provide a stable support structure for the bearing, and rolling elements reduce friction and transmit load. Retainer is used to separate rolling elements to prevent them from contacting each other. And special durable treatment or coating enhances the wear resistance, corrosion resistance and high temperature resistance of the bearing, thereby prolonging the service life of the bearing. Durable bearing is widely used in heavy load, high speed or harsh environment mechanical systems.

[0003] The patent of Chinese utility model publication No. CN220268206U discloses a high durability bearing for vehicle, comprising: an inner ring; an outer ring located outside the inner ring, which bears the load from the outside of the bearing; a rolling mechanism set on the inner ring, which supports and positions the relative motion between the inner and outer rings; a sealing mechanism set on one side of the rolling mechanism, which protects the lubricating oil or grease inside the bearing; the sealing mechanism includes a first sealing groove and a second sealing groove, the first sealing groove is located on the surface of the inner ring, and the second sealing groove is located on the inner circumferential surface of the outer ring, and the inside of the first and second sealing grooves is provided with a sealing strip, and the inside of the sealing strip is in a hollow structure. To some extent, it reduces the possibility of bearing lubricating oil leakage and improves the service life of the bearing.

[0004] The durable bearing in the above patent document is sealed by the sealing mechanism cooperating with the first and second sealing grooves, which effectively avoids the rapid loss of lubricating oil inside the bearing. However, during the long-term uninterrupted operation of the bearing, the lubricating oil inside the bearing will still be consumed, and if the lubricating oil inside the bearing is not added in time, the friction between the rolling elements and the inner or outer ring of the bearing will increase, which will cause damage to the rolling elements, inner ring or outer ring of the bearing. Therefore, an enhanced durable guide bearing is proposed. UTILITY MODEL CONTENTS

[0005] I. Technical problems to be solved

[0006] The utility model discloses to the above-mentioned defects of prior art, and a kind of enhanced durable guide bearing is especially presented, rotating is carried out using bearing inner ring to keep assembly, so that the rolling element installed on the rotation of keep assembly can walk along the surface of first arc slot.When rolling element walks in first arc slot, the lubricating oil in oil channel can be applied on the surface of rolling element.The surface of rolling element is lubricated, thereby reducing the friction between rolling element and first arc slot.The problem that bearing cannot be added lubricating oil during operation is solved.

[0007] II. Technical solutions

[0008] To solve the above technical problems, the utility model provides a kind of enhanced durable guide bearing, including bearing outer ring, a plurality of setting in the rolling body of bearing outer ring inner side, setting in the keep assembly of bearing outer ring inner side for keeping the stable movement of rolling body, the bearing inner ring of setting in the keep assembly inner side, annular oil seal piece for being used to the sealing of both ends of bearing outer ring and the snap spring for being used to prevent annular oil seal piece from falling of both ends of bearing outer ring, the inner side of bearing outer ring is symmetrically provided with first arc slot for the rolling body walking;

[0009] The outer circumferential surface of the bearing outer ring is provided with an oil groove for storing lubricating oil, and a plurality of oil holes are equidistantly arranged in the interior of the oil groove.

[0010] As a kind of technical solutions of the present application, the keep assembly includes two sets of retaining frames, and assembly grooves for placing rolling elements are equidistantly arranged around the central shaft of the retaining frames.

[0011] The assembly grooves on the two sets of retaining frames can be adapted and assembled.

[0012] As a kind of technical solutions of the present application, the outer circumferential surface of the bearing inner ring is provided with a second arc slot for the rolling element to walk.

[0013] As a kind of technical solutions of the present application, second annular mounting grooves are symmetrically arranged at both ends of the outer circumferential surface of the bearing inner ring.

[0014] First annular mounting grooves are symmetrically arranged at both ends of the inner circumferential surface of the bearing outer ring.

[0015] The inner part of the first annular mounting groove is provided with an annular oil seal piece, and the inner ring of the annular oil seal piece is mounted in the second annular mounting groove.

[0016] As a kind of technical solutions of the present application, a clamping groove is arranged on the side of the inner circumferential surface of the bearing outer ring close to the first annular mounting groove, and the snap spring is clamped in the clamping groove to limit the annular oil seal piece.

[0017] As a technical scheme of the present application, the material of the bearing outer ring is made of stainless steel or titanium alloy material.

[0018] As a technical scheme of the present application, the material of the bearing inner ring is made of high-hardness ceramic material silicon nitride.

[0019] As a technical scheme of the present application, the material of the rolling body is made of high-carbon chromium bearing steel material, and the rolling body is in a whole spherical structure.

[0020] III. Advantages

[0021] Compared with the prior art, the utility model discloses a bearing inner ring drives the rotation of the retaining assembly, so that the rolling body installed on the retaining assembly can walk along the surface of the first arc-shaped groove while rotating. When the rolling body walks along the first arc-shaped groove, the lubricating oil in the oil channel can be applied to the surface of the rolling body. The surface of the rolling body is lubricated, thereby reducing the friction between the rolling body and the first arc-shaped groove. The problem that the bearing cannot be lubricated during operation is solved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of an enhanced durable guide bearing.

[0023] Figure 2 It is a top view of an enhanced durable guide bearing.

[0024] Figure 3 It is Figure 2 the sectional view at A-A in Fig.

[0025] Figure 4 It is a partial sectional view of an enhanced durable guide bearing.

[0026] Figure 5 It is an explosion view of a storage barrel in an enhanced durable guide bearing.

[0027] Figure 6 It is an explosion view of a retaining assembly in an enhanced durable guide bearing.

[0028] Figure 7 It is a perspective view of a bearing outer ring in an enhanced durable guide bearing.

[0029] Figure 8 It is Figure 4 the enlarged view at B in Fig.

[0030] In the figure:

[0031] 1 is the outer ring of the bearing; 11 is the oil groove; 12 is the oil hole; 13 is the oil passage; 14 is the first arc-shaped groove; 15 is the first annular mounting groove; 16 is the retaining groove; 2 is the inner ring of the bearing; 21 is the second arc-shaped groove; 22 is the second annular mounting groove; 3 is the annular oil seal; 4 is the retaining ring; 5 is the retaining assembly; 51 is the cage; 511 is the assembly groove; 512 is the adapter groove; 6 is the rolling element. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.

[0033] Example 1:

[0034] like Figures 1-8 As shown, the enhanced durable guide bearing of this embodiment includes an outer bearing ring 1, a plurality of rolling elements 6 disposed on the inner side of the outer bearing ring 1, a retaining assembly 5 disposed on the inner side of the outer bearing ring 1 for maintaining the stable movement of the rolling elements 6, an inner bearing ring 2 disposed on the inner side of the retaining assembly 5, annular oil seals 3 disposed at both ends of the outer bearing ring 1 for sealing it, and snap rings 4 disposed at both ends of the outer bearing ring 1 for preventing the annular oil seals 3 from falling off. The inner side of the outer bearing ring 1 is symmetrically provided with first arc-shaped grooves 14 for allowing the rolling elements 6 to travel.

[0035] An oil groove 11 for storing lubricating oil is provided on the outer circumferential surface of the bearing outer ring 1. Several oil holes 12 are provided at equal intervals inside the oil groove 11. Oil passages 13 that can communicate with the first arc-shaped groove 14 are provided on both sides of the oil holes 12.

[0036] The bearing inner ring 2 drives the retaining assembly 5 to rotate, allowing the rolling element 6 mounted on the retaining assembly 5 to travel along the first arc-shaped groove 14 while rotating. As the rolling element 6 travels along the first arc-shaped groove 14, the lubricating oil inside the oil passage 13 coats the surface of the rolling element 6 when it passes through the oil passage 13. This allows for the addition of lubricating oil to the surface of the rolling element 6 during movement, reducing friction between the rolling element 6 and the first arc-shaped groove 14. This solves the problem of not being able to add lubricating oil to the bearing during operation, thereby reducing friction and wear between the rolling element 6 and the first arc-shaped groove 14, improving the operating efficiency of the rolling element 6, preventing overheating and corrosion, and ensuring stable equipment operation.

[0037] like Figure 6 As shown, the retaining assembly 5 includes two sets of retainers 51, and the retainers 51 are provided with mounting slots 511 for placing the rolling elements 6 at equal intervals around their central axis.

[0038] The two groups of adapter slots 512 on the retainer 51 can be assembled. By equidistantly arranging a plurality of assembly slots 511 on the retainer 51 around the central axis thereof, the rolling element 6 can be placed inside the assembly slot 511, so that the same distance between the groups of rolling elements 6 can be maintained at all times. At the same time, the rolling element 6 can stably rotate around the central axis of the bearing outer ring 1. By equidistantly arranging a plurality of adapter slots 512 on the two groups of retainers 51, when the two groups of retainers 51 are close to each other, the adapter slots 512 arranged on the two groups of retainers 51 can cooperate with each other, so that the two groups of retainers 51 can be assembled. Thus, the assembly efficiency of the retainer 51 is improved.

[0039] As shown in Figure 4 and Figure 5 , the outer circumferential surface of the bearing inner ring 2 is provided with a second arc-shaped groove 21 for the rolling element 6 to run. In order to avoid the rolling element 6 from deviating during movement, the second arc-shaped groove 21 is arranged on the outer circumferential surface of the bearing inner ring 2, so that when the rolling element 6 rotates around the central axis of the bearing outer ring 1, the rolling element 6 can run along the second arc-shaped groove 21. Thus, the rolling element 6 is prevented from deviating during movement.

[0040] The outer circumferential surface of the bearing inner ring 2 is symmetrically provided with a second annular mounting groove 22 at both ends; the inner circumferential surface of the bearing outer ring 1 is symmetrically provided with a first annular mounting groove 15 at both ends; the first annular mounting groove 15 is internally provided with an annular oil seal piece 3, and the inner ring of the annular oil seal piece 3 is mounted inside the second annular mounting groove 22.

[0041] In order to ensure the sealing property of the bearing, the outer circumferential surface of the annular oil seal piece 3 is mounted inside the first annular mounting groove 15, and then the inner circumferential surface of the annular oil seal piece 3 is mounted inside the second annular mounting groove 22. At the same time, the inner circumferential surface of the annular oil seal piece 3 does not contact the circumferential surface of the second annular mounting groove 22. The normal rotation of the bearing inner ring 2 is not affected by the annular oil seal piece 3. By increasing the annular oil seal piece 3, the rapid loss of lubricating oil inside the bearing can be effectively avoided.

[0042] As shown in Figure 3 , Figure 4 and Figure 7 , the inner circumferential surface of the bearing outer ring 1 is provided with a clamping groove 16 on one side close to the first annular mounting groove 15, and a clamping spring 4 is clamped inside the clamping groove 16 for limiting the annular oil seal piece 3.

[0043] In order to avoid the ring-shaped oil seal piece 3 from falling off from the inside of the first ring-shaped mounting groove 15 and the second ring-shaped mounting groove 22, the clamping groove 16 is arranged on the inner circumferential surface of the bearing outer ring 1 close to one side of the first ring-shaped mounting groove 15, and the clamping groove 16 is clamped in the first ring-shaped mounting groove 15, so that the first ring-shaped mounting groove 15 can fix the clamping groove 16. Effectively avoid the ring-shaped oil seal piece 3 from falling off from the inside of the first ring-shaped mounting groove 15 and the second ring-shaped mounting groove 22.

[0044] Embodiment 2:

[0045] Compared with embodiment 1, in order to ensure the corrosion resistance and high bearing strength of the bearing, the bearing outer ring 1 is made of stainless steel or titanium alloy material, and the characteristics of the stainless steel or titanium alloy material are used, so that the bearing outer ring 1 can effectively resist the erosion of humid and corrosive medium, ensure that the bearing outer ring 1 can operate stably for a long time, and reduce the failure rate of the bearing outer ring 1 caused by environmental factors. Thus, the service life of the bearing outer ring 1 is improved.

[0046] The material of the bearing inner ring 2 is made of high-hardness ceramic material silicon nitride, in order to improve the wear resistance, high temperature resistance and corrosion resistance of the bearing inner ring 2, the high-hardness ceramic material silicon nitride is used, which has high strength, high hardness and high temperature resistance. The wear resistance, high temperature resistance and corrosion resistance of the bearing inner ring 2 are significantly improved. Effectively resist friction and wear, prolong the service life of the bearing inner ring 2. At the same time, the bearing inner ring 2 can operate stably in an extreme high temperature environment and is not easy to fail due to thermal expansion.

[0047] The material of the rolling body 6 is made of high-carbon chromium bearing steel, and the rolling body 6 is in a spherical structure. In order to improve the service life of the rolling body 6, the high-carbon chromium bearing steel is used to make the rolling body 6, which has high hardness, wear resistance, high fatigue strength and stable characteristics. The rolling body 6 can withstand heavy load and continuous friction while maintaining the original shape and size, thereby prolonging the service life.

[0048] The above is only a preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the technical principles of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. An enhanced durable guide bearing, characterized by, The enhanced durable guide bearing comprises a bearing outer ring (1), a plurality of rolling bodies (6) arranged on the inner side of the bearing outer ring (1), a retaining assembly (5) arranged on the inner side of the bearing outer ring (1) and used for keeping the rolling bodies (6) stable, a bearing inner ring (2) arranged on the inner side of the retaining assembly (5), annular oil seal plates (3) arranged on both ends of the bearing outer ring (1) and used for sealing the bearing outer ring (1), and snap springs (4) arranged on both ends of the bearing outer ring (1) and used for preventing the annular oil seal plates (3) from falling off; the inner side of the bearing outer ring (1) is symmetrically provided with first arc-shaped grooves (14) for the rolling bodies (6) to walk on. An oil groove (11) for storing lubricating oil is formed on the outer circumferential surface of the bearing outer ring (1), a plurality of oil holes (12) are equidistantly formed in the oil groove (11), and oil channels (13) capable of communicating with the first arc-shaped grooves (14) are symmetrically arranged on both sides of the oil holes (12).

2. The reinforced durable guide bearing of claim 1, wherein, The retaining assembly (5) comprises two groups of retaining frames (51), and the retaining frames (51) are equidistantly provided with assembly grooves (511) for placing the rolling bodies (6) around the central shafts thereof. A plurality of adaptive grooves (512) are equidistantly arranged on one side of each of the two groups of retaining frames (51), and the adaptive grooves (512) on the two groups of retaining frames (51) can be adaptively assembled.

3. The reinforced durable guide bearing of claim 1, wherein, A second arc-shaped groove (21) capable of allowing the rolling bodies (6) to walk on is formed on the outer circumferential surface of the bearing inner ring (2).

4. The reinforced durable guide bearing of claim 1, wherein, Second annular mounting grooves (22) are symmetrically formed on both ends of the outer circumferential surface of the bearing inner ring (2). First annular mounting grooves (15) are symmetrically formed on both ends of the inner circumferential surface of the bearing outer ring (1). The annular oil seal plates (3) are mounted in the first annular mounting grooves (15), and the inner rings of the annular oil seal plates (3) are mounted in the second annular mounting grooves (22).

5. The reinforced durable guide bearing of claim 1, wherein, A clamping groove (16) is formed on one side of the inner circumferential surface of the bearing outer ring (1) close to the first annular mounting groove (15), and the snap springs (4) are clamped in the clamping groove (16) to limit the annular oil seal plates (3).

6. The reinforced durable guide bearing of claim 1, wherein, The material of the bearing outer ring (1) is made of stainless steel or titanium alloy material.

7. The reinforced durable guide bearing of claim 1, wherein, The material of the bearing inner ring (2) is made of high-hardness ceramic material, i.e., silicon nitride.

8. The reinforced durable guide bearing of claim 1, wherein, The material of the rolling bodies (6) is made of high-carbon chromium bearing steel material, and the rolling bodies (6) are in a spherical structure as a whole.

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