CN220470484U - Underwater anti-interference angular contact ball bearing - Google Patents
Underwater anti-interference angular contact ball bearing Download PDFInfo
- Publication number
- CN220470484U CN220470484U CN202321282254.8U CN202321282254U CN220470484U CN 220470484 U CN220470484 U CN 220470484U CN 202321282254 U CN202321282254 U CN 202321282254U CN 220470484 U CN220470484 U CN 220470484U
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- ring
- protective net
- inner ring
- roller path
- outer ring
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- 230000001681 protective effect Effects 0.000 claims abstract description 34
- 238000005260 corrosion Methods 0.000 claims abstract description 16
- 230000007797 corrosion Effects 0.000 claims abstract description 16
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 239000013535 sea water Substances 0.000 abstract description 12
- 238000005299 abrasion Methods 0.000 abstract description 6
- 238000005461 lubrication Methods 0.000 description 6
- 239000002028 Biomass Substances 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000004519 grease Substances 0.000 description 3
- 235000015170 shellfish Nutrition 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The underwater anti-interference angular contact ball bearing comprises an outer ring, an inner ring, rolling bodies, a protective net and a spring ring; the inner ring is arranged in the outer ring, the middle part of the outer peripheral surface of the inner ring is provided with a circle of outer arc surface roller path, the middle part of the inner peripheral surface of the outer ring is provided with a circle of inner arc surface roller path, a plurality of rolling bodies in contact with the roller path are circumferentially distributed between the outer arc surface roller path and the inner arc surface roller path, the tooth mouth of the outer ring is provided with a protective net, two end surfaces of the inner ring are in clearance fit with the protective net and are axially limited by the protective cover, the protective net is fixed by a spring ring clamped on the inner concave surface of the outer ring, and the outer ring, the inner ring, the protective net and the spring ring are all made of corrosion-resistant materials. The utility model has the characteristics of strong corrosion resistance, abrasion resistance and good reliability, and can reliably operate when being applied to a seawater environment, and the utility model has flexible rotation and no clamping stagnation.
Description
Technical Field
The utility model relates to a bearing, in particular to an underwater anti-interference angular contact ball bearing, and belongs to the technical field of bearings.
Background
Bearings are affected by various factors in the seawater environment, which in turn lead to failure of the bearing and also need to withstand high loads in the event of disturbances, the lubrication medium of the bearing in the seawater environment being water, the viscosity of which is between the lubrication oil and the gas. The water film has low bearing capacity, and the bearing is in boundary lubrication and dry friction states. The corrosion action of water is also stronger, and H20 conductivity is hundreds of millions times higher than that of lubricating oil to cause electrochemical corrosion of most metal materials, so that the service life and reliability are reduced, and the corrosiveness of seawater is stronger. At present, research on water lubrication bearings at home and abroad is mainly focused on the field of dynamic pressure sliding bearings, the design and application of the water lubrication rolling bearings are few, and theoretical research and material selection are all in an exploration stage.
Disclosure of Invention
The utility model provides an underwater anti-interference angular contact ball bearing, which is characterized by strong corrosion resistance, wear resistance and good reliability.
The underwater anti-interference angular contact ball bearing comprises an outer ring, an inner ring, rolling bodies, a protective net and a spring ring;
the inner ring is arranged in the outer ring, the middle part of the outer peripheral surface of the inner ring is provided with a circle of outer arc surface roller path, the middle part of the inner peripheral surface of the outer ring is provided with a circle of inner arc surface roller path, a plurality of rolling bodies in contact with the roller path are circumferentially distributed between the outer arc surface roller path and the inner arc surface roller path, the tooth mouth of the outer ring is provided with a protective net, two end surfaces of the inner ring are in clearance fit with the protective net and are axially limited by the protective net, the protective net is fixed by a spring ring clamped on the inner concave surface of the outer ring, and the outer ring, the inner ring, the protective net and the spring ring are all made of corrosion-resistant materials.
Compared with the prior art, the utility model has the beneficial effects that:
the main parts of the scheme are made of corrosion-resistant materials, so that the seawater corrosion resistance is high; the structure that the bearing is arranged without a retainer and full balls is adopted, so that the rotation resistance is reduced, the rated load is high, the heavy load is handled, and the bearing capacity is high; the design of the protective net effectively prevents the pollution of biomass, shellfish and the like, ensures the operation to be free from interference, and is reliable to operate when being applied to the seawater environment, and the rotation is flexible and free from clamping stagnation.
The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples:
drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the structure of the outer ring;
FIG. 3 is a schematic view of the structure of the inner ring;
FIG. 4 is a schematic view of a protective net;
FIG. 5 is a schematic view of a spring coil;
fig. 6 is a side view of fig. 5.
Wherein: 1. the device comprises an outer ring, 2, an inner ring, 3, rolling bodies, 4, a protective net, 5 and a spring ring.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for the purpose of more clearly illustrating the technical aspects of the present utility model, and unless otherwise indicated, the technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present utility model pertains.
The underwater anti-interference angular contact ball bearing of the present embodiment includes an outer ring 1, an inner ring 2, rolling bodies 3, a protection net 4, and spring rings 5, described with reference to fig. 1 to 3 and 5 to 6;
the inner ring 2 is arranged in the outer ring 1, a circle of outer arc surface roller path 21 is arranged in the middle of the outer peripheral surface of the inner ring 2, a circle of inner arc surface roller path 11 is arranged in the middle of the inner peripheral surface of the outer ring 1, a plurality of rolling bodies 3 in contact with the roller paths are circumferentially distributed between the outer arc surface roller path 21 and the inner arc surface roller path 11, a protective net 4 is arranged on a tooth mouth of the outer ring 1, two end faces of the inner ring 2 are in clearance fit with the protective net 4 and are limited by the protective net 4 in the axial direction, the protective net 4 is fixed by a spring ring 5 clamped on an inner concave surface of the outer ring 1, and the outer ring 1, the inner ring 2, the protective net 4 and the spring ring 5 are all made of corrosion-resistant materials. The seawater corrosion resistance is strong.
Optionally, in order to ensure that the protective cover 4 can adapt to the arrangement and assembly of the inner ring 2, the protective cover 4 has a convex stepped structure, and the middle part has a convex shape, so that a space is reserved for the installation of the inner ring 2.
Further, the outer ring 1 and the inner ring 2 are made of corrosion-resistant bearing steel. The material of the protective net 4 is titanium alloy. The spring ring 5 is made of titanium alloy. So arranged, the seawater corrosion resistance is 100 times that of the traditional G95Cr18 steel. Meanwhile, the hardness of the outer ring 1, the inner ring 2 and the rolling bodies 3 is 56-65HRC, and the running abrasion is small because the hardness of the ferrule and the rolling bodies is 56-65HRC. In addition, the service life of the high corrosion resistant bearing steel is 5 times that of M50 steel, and the service life under the boundary lubrication condition is 10 times that of the conventional bearing steel, so that the running wear is reduced again and the service life of the bearing is prolonged.
Furthermore, the angular contact ball bearing of the embodiment is a cage-free full ball, so that the rotation resistance under water is reduced, the rated load is high, the heavy load is handled, and the bearing capacity is high.
The design of the protective net 4 prevents the pollution of biomass, shellfish and the like and ensures the operation to be free from interference; the water draining device can be in a net-shaped structure, is favorable for accelerating water draining, and has small bearing running resistance. The holes on the protective net 4 are designed or the protective net 4 is replaced by a high-strength net structure.
The internal contact area is optimally designed, which is favorable for discharging the abradant.
The bearing of the embodiment is P4-level precision, the service life of the bearing is prolonged, contact friction characteristics are improved, and corrosion resistance is improved.
The seawater-resistant lubricating grease can maintain a good lubricating state for a certain period of time.
Before the protection net 4 is pressed, seawater-resistant grease is arranged on the outer arc surface and the inner arc surface.
As a possible implementation manner, as shown in fig. 3-4, the outer circumferential surface of the inner ring 2 is a combination of an outer arc surface and two steps, the steps are arranged at the outer side edge of the inner ring 2, the outer diameter D of the lower-step circumferential surface of the steps is smaller than the inner diameter Φ of the central hole of the protection net, and the inner diameter Φ of the central hole of the protection net is smaller than the outer diameter D of the upper-step circumferential surface of the steps. The arrangement is convenient for assembling the inner ring 2, and can be blocked by the protective net 4 to prevent the inner ring 2 from falling off axially.
The embodiment has very strong corrosion resistance and abrasion resistance, so the service life is long and the reliability is stronger; in addition, the running resistance is small, and the influence on the system is weak.
Application example: the angular contact bearing of the embodiment can reliably operate when applied to a seawater environment, and has the service life of 1000 times, each time for 5 seconds; radial load 30KN, axial load 15KN; bearing load at impact: radial load 1.2×30kn, axial load 15KN; the estimated temperature is below 30 ℃, the rotation is flexible and free from clamping stagnation, and the pollution of marine fish, shrimp, shellfish and other biomass can be prevented.
Failure mode: the water used as a lubricating medium has low viscosity and poor lubricating performance, and the bearing is extruded from a contact area during running. The contact surface boundary or dry friction of the parts generates abrasion wear, the abrasion dust becomes more along with the increase of working time, and if the removal effect is poor, the abrasion wear is aggravated, and the precision is lost until the operation is invalid. For this purpose, the seawater-resistant grease is coated on the arc surfaces of the inner ring 2 and the outer ring 1.
The field of the water pump bearing is similar to the working condition of the application, and the water pump bearing is water lubricated. But the water pump has large water flow, small load and high rotating speed, and does not pollute biomass. The heavy load working condition and the corresponding abrasive wear in the application are mainly different.
The present utility model has been described in terms of preferred embodiments, but is not limited to the utility model, and any equivalent embodiments can be made by those skilled in the art without departing from the scope of the utility model, as long as the equivalent embodiments are possible using the above-described structures and technical matters.
Claims (6)
1. The utility model provides an anti-interference's angular contact ball bearing under water which characterized in that: comprises an outer ring (1), an inner ring (2), rolling bodies (3), a protective net (4) and a spring ring (5);
the inner ring (2) is arranged in the outer ring (1), a circle of outer arc surface roller path (21) is arranged in the middle of the outer peripheral surface of the inner ring (2), a circle of inner arc surface roller path (11) is arranged in the middle of the inner peripheral surface of the outer ring (1), a plurality of rolling bodies (3) in contact with the roller path are circumferentially distributed between the outer arc surface roller path (21) and the inner arc surface roller path (11), a protective net (4) is arranged on a tooth mouth of the outer ring (1), two end surfaces of the inner ring (2) are in clearance fit with the protective net (4) and are limited by the protective net (4) in the axial direction, the protective net (4) is fixed by a spring ring (5) clamped on an inner concave surface of the outer ring (1), and the outer ring (1), the inner ring (2), the protective net (4) and the spring ring (5) are made of corrosion-resistant materials.
2. The underwater tamper-resistant angular contact ball bearing of claim 1, wherein: the outer ring (1) and the inner ring (2) are made of corrosion-resistant bearing steel.
3. The underwater tamper-resistant angular contact ball bearing of claim 1, wherein: the material of the protective net (4) is titanium alloy.
4. The underwater tamper-resistant angular contact ball bearing of claim 1, wherein: the spring ring (5) is made of titanium alloy.
5. The underwater tamper-resistant angular contact ball bearing of claim 1, wherein: the hardness of the outer ring (1), the inner ring (2) and the rolling bodies (3) is 56-65HRC.
6. The underwater tamper-resistant angular contact ball bearing of claim 1, wherein: the outer peripheral surface of the inner ring (2) is a combination of an outer arc surface and two steps, the steps are arranged on the outer side edge of the inner ring (2), the outer diameter (D) of the lower-order peripheral surface of the steps is smaller than the inner diameter (phi) of the central hole of the protection net, and the inner diameter (phi) of the central hole of the protection net is smaller than the outer diameter (D) of the upper-order peripheral surface of the steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321282254.8U CN220470484U (en) | 2023-05-24 | 2023-05-24 | Underwater anti-interference angular contact ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321282254.8U CN220470484U (en) | 2023-05-24 | 2023-05-24 | Underwater anti-interference angular contact ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220470484U true CN220470484U (en) | 2024-02-09 |
Family
ID=89779603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321282254.8U Active CN220470484U (en) | 2023-05-24 | 2023-05-24 | Underwater anti-interference angular contact ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220470484U (en) |
-
2023
- 2023-05-24 CN CN202321282254.8U patent/CN220470484U/en active Active
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