CN210565796U

CN210565796U - Noise reduction bearing

Info

Publication number: CN210565796U
Application number: CN201921696859.5U
Authority: CN
Inventors: 冯艳
Original assignee: Quanzhou Yuanfeng Bearing Co Ltd
Current assignee: Quanzhou Yuanfeng Bearing Co Ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-05-19
Anticipated expiration: 2029-10-11

Abstract

The utility model relates to the technical field of bearings, in particular to a noise reduction bearing, which comprises an inner ring, an outer ring, a plurality of rolling bodies and a retainer, wherein the inner ring, the outer ring and the retainer are coaxially arranged, and the rolling bodies are movably arranged on the retainer; the inner ring is of a sandwich structure and comprises a sound absorption material layer and an air layer arranged behind the sound absorption material layer; the outer ring comprises a first ring and a second ring which are coaxially arranged, the first ring is made of porous metal materials, and the first ring and the second ring are arranged in a closed mode to form an oil storage cavity; an oil filling hole is formed in one side of the oil storage cavity, and a plug for preventing lubricating oil from flowing out is movably arranged at the oil filling hole; the first ring is equipped with the through-hole that switches on oil storage chamber and rolling element, and the through-hole is equipped with the overflow valve that is used for the control flow, and the overflow valve includes control part and overflow rod, and the overflow rod is the toper structure setting for the other end of control part. This technical scheme can increase the self-lubricating nature of bearing, simultaneously with sound absorbent barrier noise's propagation, reduce the noise.

Description

Noise reduction bearing

Technical Field

The utility model relates to a bearing technical field, concretely relates to bearing of making an uproar falls.

Background

The bearing is an important part in the modern mechanical equipment. The main function of the bearing is to support the mechanical rotator, reduce the friction coefficient in the movement process, ensure the rotation precision, and be widely applied to various fields.

In the prior art, most of the original noise reduction bearings reduce noise generated by the operation of the bearings, and the noise reduction bearings do not fundamentally start from the noise generated by the bearings, so that certain defects exist; and because the noise that friction and vibration produced can spread through this transmission medium of air, lead to the bearing use to feel relatively poor, now urgently need a kind of bearing that makes an uproar that falls to solve above-mentioned problem that appears.

SUMMERY OF THE UTILITY MODEL

For solving the problem that proposes among the above-mentioned background art, the utility model provides a bearing of making an uproar falls possesses the lubricated setting of making an uproar of falling with the dual function of making an uproar falls in sound absorbing layer, and noise reduction effect is good.

In order to achieve the above object, the utility model provides a following technical scheme: a noise reduction bearing comprises an inner ring, an outer ring, a plurality of rolling bodies and a retainer, wherein the inner ring, the outer ring and the retainer are coaxially arranged, and the rolling bodies are movably arranged on the retainer; the inner ring is of a sandwich structure and comprises a sound absorption material layer and an air layer arranged behind the sound absorption material layer; the outer ring comprises a first ring and a second ring which are coaxially arranged, the first ring is made of porous metal materials, and the first ring and the second ring are arranged in a closed mode to form an oil storage cavity; an oil filling hole is formed in one side of the oil storage cavity, and a plug for preventing lubricating oil from flowing out is movably arranged at the oil filling hole; the first ring is provided with a through hole for communicating the oil storage cavity with the rolling body, and the through hole is provided with an overflow valve for controlling flow.

Further, the overflow valve includes control portion and overflow rod, and the overflow rod is the setting of toper structure for the other end of control portion.

Furthermore, a plurality of reinforcing ribs are arranged in the oil storage cavity, and the width of each reinforcing rib is smaller than that of the oil storage cavity.

Furthermore, the retainer is made of nylon.

Further, the sound absorbing material layer is the expanded rubber, and this expanded rubber thickness is 3mm, and its surface layer distributes has the micropore of big or small uniformity, and the air bed thickness of setting up behind the sound absorbing material layer is 15 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the porous metal adopted by the first ring is a powder material which has a porous structure, and if the porous metal is soaked in lubricating oil, the micropores are filled with the lubricating oil, so that the oil-retaining bearing is formed and has self-lubricating property; the first ring and the second ring are sealed to form an oil storage cavity for storing lubricating oil, and the first ring is made of porous metal materials, so that the first ring can be soaked in the lubricating oil for a long time, the first ring can always keep self-lubricating property, friction generated in the using process of the bearing is reduced, and noise is reduced.

2. The through-hole is equipped with the overflow valve that is used for control flow, and the overflow valve includes control division and overflow bar, and the overflow bar is the toper structure setting for the other end of control division, can control the circulation of lubricating oil like this and can finely tune the flow when circulating.

3. A plurality of reinforcing ribs are arranged in the oil storage cavity, so that the strength of the outer ring can be enhanced, and the deformation of the outer ring caused by overlarge bearing capacity is prevented; the width of strengthening rib is less than the width in oil storage chamber, can make lubricating oil circulate at the oil storage chamber like this, lubricated each subassembly of bearing, noise reduction.

4. The retainer is made of nylon material, the nylon has good strength and elasticity matching, and the nylon retainer only generates little friction when generating relative motion with the lubricated rolling element surface, so that the noise generated by bearing friction and vibration can be reduced.

5. The sound absorption material layer is made of foamed rubber, the thickness of the foamed rubber is 3mm, micropores with uniform sizes are distributed on the surface layer of the foamed rubber, and the uniform micropore structure of the sound absorption material layer is favorable for noise to be transmitted inside the material, so that the noise absorption effect is improved; the thickness of the air layer arranged behind the sound absorption material layer is 15mm, and the noise is reflected and refracted for multiple times in the air layer, so that the absorption effect is improved, and the propagation of the noise is effectively reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of an embodiment of a noise reduction bearing of the present invention;

fig. 2 is a side view of the noise reduction bearing of the present invention;

3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 5 is a partial enlarged view of C in fig. 3.

In the figure: 1. an inner ring; 11. a layer of sound absorbing material; 12. an air layer; 2. an outer ring; 21. a first ring; 22. an oil storage chamber; 23. a second ring; 3. a rolling body; 4. a holder; 5. reinforcing ribs; 6. an oil filler hole; 7. an overflow valve; 71. a control unit; 72. an overflow bar; 8. a plug; 9. and a through hole.

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some, but not all, embodiments of the present invention and are not to be considered as limiting, and that all other embodiments can be made by one of ordinary skill in the art without any inventive work.

Referring to fig. 1-5, the present invention provides the following technical solutions: a noise reduction bearing comprises an inner ring 1, an outer ring 2, a plurality of rolling bodies 3 and a retainer 4, wherein the inner ring 1, the outer ring 2 and the retainer 4 are coaxially arranged, and the rolling bodies 3 are movably arranged on the retainer 4; the inner ring 1 is of a sandwich structure and comprises a sound absorption material layer 11 and an air layer 12 arranged behind the sound absorption material layer 11; the outer ring 2 comprises a first ring 21 and a second ring 23 which are coaxially arranged, the first ring 21 is made of porous metal materials, and the first ring 21 and the second ring 23 are arranged in a closed mode to form an oil storage cavity 22; an oil filling hole 6 is formed in one side of the oil storage cavity 22, and a plug 8 for preventing lubricating oil from flowing out is movably arranged in the oil filling hole 6; the first ring 21 is provided with a through hole 9 for communicating the oil reservoir 22 with the rolling elements 3, and the through hole 9 is provided with a relief valve 7 for controlling the flow rate.

In order to reduce friction and noise generated during the use of the bearing, the porous metal adopted by the first ring 21 is a powder material which has a porous structure, and if the porous metal is soaked in lubricating oil, the micropores are filled with the lubricating oil, so that the oil-retaining bearing is formed and has self-lubricating property; the first ring 21 and the second ring 23 are sealed to form an oil storage cavity 22 for storing lubricating oil, and the first ring 21 is made of porous metal materials, so that the first ring 21 can be immersed in the lubricating oil for a long time, and the first ring 21 can always keep self-lubricating property.

In order to control the flow of the lubricating oil and to finely adjust the flow rate during the flow, the through hole 9 is provided with a relief valve 7 for controlling the flow rate, the relief valve 7 includes a control portion 71 and a relief rod 72, and the relief rod 72 is provided in a tapered configuration with respect to the other end of the control portion 71.

In order to enhance the strength of the outer ring 2 and enable lubricating oil to circulate in the oil storage cavity 22, to lubricate each component of the bearing and to reduce noise, a plurality of reinforcing ribs 5 are arranged in the oil storage cavity 22, and the width of each reinforcing rib 5 is smaller than that of the oil storage cavity 22.

In order to improve the noise absorption effect and effectively reduce the noise transmission, the sound absorption material layer 11 is made of foam rubber, the thickness of the foam rubber is 3mm, micropores with uniform sizes are distributed on the surface layer of the foam rubber, and the thickness of the air layer 12 arranged behind the sound absorption material layer 11 is 15 mm.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a bearing of making an uproar falls, includes inner circle (1), outer lane (2), several rolling element (3) and holder (4), its characterized in that: the inner ring (1), the outer ring (2) and the retainer (4) are coaxially arranged, and the rolling body (3) is movably arranged on the retainer (4); the inner ring (1) is of a sandwich structure and comprises a sound absorption material layer (11) and an air layer (12) arranged behind the sound absorption material layer (11); the outer ring (2) comprises a first ring (21) and a second ring (23) which are coaxially arranged, the first ring (21) is made of porous metal materials, and the first ring (21) and the second ring (23) are arranged in a closed mode to form an oil storage cavity (22); an oil filling hole (6) is formed in one side of the oil storage cavity (22), and a plug (8) for preventing lubricating oil from flowing out is movably arranged in the oil filling hole (6); the first ring (21) is provided with a through hole (9) for communicating the oil storage cavity (22) with the rolling body (3), and the through hole (9) is provided with an overflow valve (7) for controlling flow.

2. A noise reducing bearing according to claim 1, wherein: the overflow valve (7) comprises a control part (71) and an overflow rod (72), and the overflow rod (72) is arranged in a conical structure relative to the other end of the control part (71).

3. A noise reducing bearing according to claim 1, wherein: be equipped with many strengthening ribs (5) in oil storage chamber (22), the width of strengthening rib (5) is less than the width in oil storage chamber (22).

4. A noise reducing bearing according to claim 1, wherein: the retainer (4) is made of a nylon material.

5. A noise reducing bearing according to claim 1, wherein: the sound absorption material layer (11) is the foam rubber, and this foam rubber thickness is 3mm, and its surface course distributes and has the micropore of even size, air bed (12) thickness is 15 mm.