CN112610597A - Sealing structure of cylindrical roller - Google Patents
Sealing structure of cylindrical roller Download PDFInfo
- Publication number
- CN112610597A CN112610597A CN202011472062.4A CN202011472062A CN112610597A CN 112610597 A CN112610597 A CN 112610597A CN 202011472062 A CN202011472062 A CN 202011472062A CN 112610597 A CN112610597 A CN 112610597A
- Authority
- CN
- China
- Prior art keywords
- ring
- isolating
- bearing
- cylindrical roller
- spacer ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a sealing structure of a cylindrical roller, which comprises an outer ring, an inner ring and two rows of rollers, wherein the two rows of rollers are arranged between the outer ring and the inner ring in a rolling manner, baffle rings are arranged at two ends of the outer circumferential wall of the inner ring in a protruding manner towards the inner circumferential wall of the outer ring, the end surfaces of the baffle rings are arranged in a clearance fit manner with the inner circumferential wall of the outer ring, annular grooves are sunken in the end surfaces of the baffle rings, isolating rings are arranged in the two annular grooves and are made of elastic materials, one part of the outer circumferential wall of each isolating ring is connected with the inner circumferential wall of the outer ring, the other part of the outer circumferential wall of each isolating ring is buckled on the. The invention solves the problem that in the prior art, external impurities easily enter the bearing to cause the bearing to be damaged.
Description
Technical Field
The invention relates to the technical field of bearings, in particular to a sealing structure of a cylindrical roller.
Background
The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision. However, in the conventional NNUP-type cylindrical roller bearing in the prior art, the inner ring, the two check rings and the outer ring are separated, so that the bearing is troublesome in the processes of packaging, transporting and installing. And the structure is not sealed, so that impurities and dust frequently enter the inner cavity of the bearing in the using process, and the service life of the bearing is seriously influenced. When the NNUP type cylindrical roller bearing works, because the working environment is very severe, impurities such as silt, dust and the like can easily enter the inner cavity of the bearing, the bearing can generate abnormal sound, and the bearing can be sintered and clamped seriously. This is the case in prior art NNUP type roller bearings which fail more than 50%.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a sealing structure of a cylindrical roller, which aims to solve the problem that external impurities easily enter the interior of a bearing to cause the damage of the bearing in the prior art.
In order to achieve the purpose, the invention provides a sealing structure of a cylindrical roller, which comprises an outer ring, an inner ring and double-row rollers, wherein the double-row rollers are arranged between the outer ring and the inner ring in a rolling manner, two ends of the outer circumferential wall of the inner ring protrude towards the inner circumferential wall of the outer ring, the end surfaces of the baffle rings are arranged in a clearance fit manner with the inner circumferential wall of the outer ring, annular grooves are sunken in the end surfaces of the baffle rings, isolating rings are arranged in the two annular grooves, the isolating rings are made of elastic materials, one part of the outer circumferential wall of each isolating ring is connected with the inner circumferential wall of the outer ring, the other part of the outer circumferential wall of each isolating ring is buckled on the inner wall of.
The technical scheme is adopted, and the method has the advantages that: when an operator assembles the bearing, one part of the isolating ring is connected with the inner peripheral wall of the outer ring, the other part of the isolating ring is inserted into the annular groove and is abutted against the inner wall of the annular groove, when the bearing normally operates, the isolating ring can prevent external impurities from entering the annular groove, when the bearing bears a large amount of radial load, the load force can impact the outer ring and then is applied to the isolating ring by the outer ring, because the isolating ring is made of an elastic material, two side walls of an opening of the isolating ring can be gathered together when the isolating ring is impacted by the radial load, and when the bearing does not bear the radial load any more, the isolating ring is not deformed and the two side walls of the opening can be far away; the arrangement of the technology enables the isolating ring to block a large amount of impurities when the bearing normally operates, so that the external impurities cannot enter the bearing, meanwhile, the arrangement of the opening enables the isolating ring to deform and continue to block the annular groove when the bearing bears a large amount of radial load, so that the external impurities cannot enter the bearing on the premise of not influencing the rotating speed of the bearing, and meanwhile, the arrangement of the opening can ensure that the isolating ring cannot be damaged under the impact of radial load force; the technical arrangement further improves the working efficiency and the service life of the bearing.
The invention further provides that: the limiting ring used for preventing the roller from moving is protruded on the inner circumferential wall of the outer ring in the circumferential direction, and two side walls of the limiting ring are respectively contacted with the side walls of the double-row rollers.
The technical scheme is adopted, and the method has the advantages that: the arrangement of the limiting ring ensures that the roller cannot float on the raceway or separate from the raceway when the bearing bears axial load, and further ensures the normal operation of the bearing.
The invention further provides that: the spacer ring may be made of 65Mn spring steel material.
The technical scheme is adopted, and the method has the advantages that: the 65Mn spring steel has comprehensive mechanical property superior to that of carbon steel after heat treatment, is commonly used as various small-size flat and round springs, seat cushion springs and spring springs, and can also be used for manufacturing spring rings, valve springs, clutch reeds, brake springs, cold-drawn steel wire cold-rolled spiral springs and the like. The isolating ring is made of the materials, so that the isolating ring has excellent elastic performance.
The invention further provides that: the number of the isolating rings in each annular groove is two or more.
The technical scheme is adopted, and the method has the advantages that: inside increase of isolating ring quantity can effectually avoid external impurity to get into ring channel or bearing, further improvement the sealing performance of bearing, the increasing of isolating ring quantity simultaneously can also ensure that all the other isolating rings still can seal inside the bearing after an isolating ring accident is impaired, further normal operating of guaranteeing the bearing.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
fig. 2 is a structural view of a spacer ring according to the present invention.
Detailed Description
The invention provides a sealing structure of a cylindrical roller 3, which comprises an outer ring 1, an inner ring 2 and two rows of rollers 3, wherein the two rows of rollers 3 are arranged between the outer ring 1 and the inner ring 2 in a rolling way, two ends of the outer peripheral wall of the inner ring 2 are provided with baffle rings 11 protruding towards the inner peripheral wall of the outer ring 1, the end surfaces of the baffle rings 11 are arranged in a clearance fit way with the inner peripheral wall of the outer ring 1, the end surfaces of the baffle rings 11 are recessed with annular grooves 111, two annular grooves 111 are internally provided with isolating rings 2, the isolating rings 2 are made of elastic materials, one part of the outer peripheral wall of the isolating ring 2 is connected with the inner peripheral wall of the outer ring 1, the other part of the outer peripheral wall of the isolating ring 2 is buckled on the inner wall of the annular grooves 111, the isolating rings 2 are provided with openings 21, the isolating rings 2 are in an arc ring shape, the annular protruding direction on the inner, the isolating rings 2 can be made of 65Mn spring steel, and the number of the isolating rings 2 in each annular groove 111 is two or more.
When an operator assembles the bearing, one part of the isolating ring 2 is connected with the inner peripheral wall of the outer ring 1, and the other part of the isolating ring 2 is inserted into the annular groove 111 and is buckled on the inner wall of the annular groove 111, when the bearing normally operates, the isolating ring can prevent external impurities from entering the annular groove 111, when the bearing bears a large amount of radial load, the load force can impact the outer ring 1 and then be applied to the isolating ring 2 by the outer ring 1, because the isolating ring 2 is made of elastic materials, two side walls of the opening 21 of the isolating ring 2 can be gathered together when the isolating ring 2 is impacted by the radial load, and when the bearing does not bear the radial load, the isolating ring 2 is not deformed and two side walls of the opening 21 can be far away from.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (4)
1. The utility model provides a cylindrical roller's seal structure, includes outer lane, inner circle and double row roller, double row roller rolls and sets up between outer lane and inner circle its characterized in that: the utility model discloses a bearing ring, including inner circle periphery wall, spacer ring, outer lane internal perisporium direction, keep off ring terminal surface and outer lane internal perisporium clearance fit setting, it has the annular groove, two to keep off to cave in on the ring terminal surface all be provided with the spacer ring in the annular groove, the spacer ring is made by elastic material, the partly and outer lane internal perisporium of spacer ring periphery wall are connected, and another part supports to detain on the ring channel inner wall, the opening has been seted up on the spacer ring, the spacer ring is the circular arc cyclic annular.
2. A sealing structure of a cylindrical roller according to claim 1, wherein: the limiting ring used for preventing the roller from moving is protruded on the inner circumferential wall of the outer ring in the circumferential direction, and two side walls of the limiting ring are respectively contacted with the side walls of the double-row rollers.
3. A sealing structure of a cylindrical roller according to claim 1, wherein: the spacer ring may be made of 65Mn spring steel material.
4. A sealing structure of a cylindrical roller according to claim 1, wherein: the number of the isolating rings in each annular groove is two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011472062.4A CN112610597A (en) | 2020-12-14 | 2020-12-14 | Sealing structure of cylindrical roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011472062.4A CN112610597A (en) | 2020-12-14 | 2020-12-14 | Sealing structure of cylindrical roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112610597A true CN112610597A (en) | 2021-04-06 |
Family
ID=75234450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011472062.4A Pending CN112610597A (en) | 2020-12-14 | 2020-12-14 | Sealing structure of cylindrical roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112610597A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201330796Y (en) * | 2008-12-26 | 2009-10-21 | 洛阳轴研科技股份有限公司 | Special rolling mill bearing |
| CN101769313A (en) * | 2008-12-26 | 2010-07-07 | 大连全鑫轧机轴承制造有限公司 | Double-row full-complement cylinder roller bearing |
| WO2012072270A1 (en) * | 2010-12-03 | 2012-06-07 | Imo Holding Gmbh | Sealing element |
| CN202732690U (en) * | 2012-08-20 | 2013-02-13 | 襄阳宇清传动科技有限公司 | Backing bearing |
| JP2016014418A (en) * | 2014-07-01 | 2016-01-28 | 日本精工株式会社 | Sealing device of bearing for railway vehicle |
| CN205118001U (en) * | 2015-10-20 | 2016-03-30 | 大连冶金轴承股份有限公司 | Cylindrical roller gyro wheel bearing is completely adorned to totally enclosed biserial |
| CN209212785U (en) * | 2018-12-03 | 2019-08-06 | 瓦房店弘宇轴承制造有限公司 | A kind of Biserial cylindrical roller bearing of spring ring sealing |
| CN209943174U (en) * | 2019-02-20 | 2020-01-14 | 宁波市镇海华磊轴承有限公司 | Water pump bearing with high waterproof performance |
-
2020
- 2020-12-14 CN CN202011472062.4A patent/CN112610597A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201330796Y (en) * | 2008-12-26 | 2009-10-21 | 洛阳轴研科技股份有限公司 | Special rolling mill bearing |
| CN101769313A (en) * | 2008-12-26 | 2010-07-07 | 大连全鑫轧机轴承制造有限公司 | Double-row full-complement cylinder roller bearing |
| WO2012072270A1 (en) * | 2010-12-03 | 2012-06-07 | Imo Holding Gmbh | Sealing element |
| CN202732690U (en) * | 2012-08-20 | 2013-02-13 | 襄阳宇清传动科技有限公司 | Backing bearing |
| JP2016014418A (en) * | 2014-07-01 | 2016-01-28 | 日本精工株式会社 | Sealing device of bearing for railway vehicle |
| CN205118001U (en) * | 2015-10-20 | 2016-03-30 | 大连冶金轴承股份有限公司 | Cylindrical roller gyro wheel bearing is completely adorned to totally enclosed biserial |
| CN209212785U (en) * | 2018-12-03 | 2019-08-06 | 瓦房店弘宇轴承制造有限公司 | A kind of Biserial cylindrical roller bearing of spring ring sealing |
| CN209943174U (en) * | 2019-02-20 | 2020-01-14 | 宁波市镇海华磊轴承有限公司 | Water pump bearing with high waterproof performance |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210406 |