CN110848266A - Bearing with inclined plane sealing structure - Google Patents

Bearing with inclined plane sealing structure Download PDF

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Publication number
CN110848266A
CN110848266A CN201910988368.6A CN201910988368A CN110848266A CN 110848266 A CN110848266 A CN 110848266A CN 201910988368 A CN201910988368 A CN 201910988368A CN 110848266 A CN110848266 A CN 110848266A
Authority
CN
China
Prior art keywords
sealing ring
bearing
ring
sealing
line segment
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
Application number
CN201910988368.6A
Other languages
Chinese (zh)
Inventor
李雄
曾祥春
童明儿
过松涛
陆晓峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
QIANCHAO BEARING CO Ltd
Wanxiang Group Corp
Original Assignee
QIANCHAO BEARING CO Ltd
Wanxiang Group Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by QIANCHAO BEARING CO Ltd, Wanxiang Group Corp filed Critical QIANCHAO BEARING CO Ltd
Priority to CN201910988368.6A priority Critical patent/CN110848266A/en
Publication of CN110848266A publication Critical patent/CN110848266A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
    • F16C33/7823—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing lips
    • 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
    • F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
    • F16C33/7826—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of the opposing surface cooperating with the seal, e.g. a shoulder surface of a bearing ring
    • 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
    • F16C33/783—Details of the sealing or parts thereof, e.g. geometry, material of the mounting region
    • 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
    • F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
    • F16C33/7853—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race
    • 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
    • F16C33/7896—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members with two or more discrete sealings arranged in series
    • 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
    • F16C33/80—Labyrinth sealings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Sealing Of Bearings (AREA)

Abstract

The invention relates to a bearing with an inclined plane sealing structure, which mainly comprises a bearing outer ring, a bearing inner ring and a sealing ring mechanism, wherein the sealing ring mechanism is positioned between the bearing outer ring and the bearing inner ring, a line segment of the bearing inner ring, which is close to the sealing ring mechanism, comprises an inner ring line segment I and an inner ring line segment II, and the inner ring line segment I and the inner ring line segment II form a multi-section inclined plane structure. The invention has the beneficial effects that: the structure of the invention adopts a sealing structure combining the inclined plane sealing and the double-lip sealing of the sealing ring, thereby enhancing the sealing performance of the bearing, effectively preventing external foreign matters (water, slurry and dust) from entering the interior of the bearing and prolonging the sealing life of the bearing.

Description

Bearing with inclined plane sealing structure
Technical Field
The invention relates to a bearing structure, in particular to a bearing with an inclined plane sealing structure.
Background
The sealing ring of the existing bearing sealing structure is sealed by a single lip, the main lip of the outer sealing ring mainly prevents most external foreign matters, such as silt, dust, moisture and the like, from entering the inside of the bearing, as the 1 st gateway, the extension lip of the inner sealing ring as the 2 nd gateway leaves the external foreign matters inside the bearing, the main lip of the inner sealing ring as the 3 rd gateway thoroughly prevents the external foreign matters from entering the inner ring line segment of the bearing inside the bearing, the sealing performance of the straight blocking edge is weaker, after external muddy water breaks through the 1 st gateway and the 2 nd gateway, the sealing performance of the inner sealing ring is not enough insurance, and the sealing effect is not good.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides the bearing with the inclined plane sealing structure, which has a simple structure and better sealing performance.
The invention adopts the technical scheme for solving the technical problems that: the bearing with the inclined plane sealing structure mainly comprises a bearing outer ring, a bearing inner ring and a sealing ring mechanism, wherein the sealing ring mechanism is positioned between the bearing outer ring and the bearing inner ring, a line segment of the bearing inner ring, which is close to the sealing ring mechanism, comprises an inner ring line segment I and an inner ring line segment II, and the inner ring line segment I and the inner ring line segment II form a multi-section inclined plane structure.
The sealing ring mechanism is a single-layer bearing sealing ring, a sealing ring main lip and a sealing ring auxiliary lip are arranged on the single-layer bearing sealing ring, the sealing ring main lip is in contact with the inner ring line segment II, the sealing ring auxiliary lip is close to the inner ring line segment I, a gap is reserved between the sealing ring auxiliary lip and the inner ring line segment I, and the sealing ring main lip, the sealing ring auxiliary lip, the inner ring line segment I and the inner ring line segment II form a labyrinth sealing space.
And a sealing ring pressure reduction groove is formed in the single-layer bearing sealing ring close to the main lip of the sealing ring.
The sealing ring mechanism is composed of an outer sealing ring and an inner sealing ring, an outer sealing ring main lip is arranged on the outer sealing ring, an inner sealing ring main lip, an inner sealing ring auxiliary lip and an inner sealing ring extension lip are arranged on the inner sealing ring, the inner sealing ring main lip is in contact with an inner ring line segment II, the inner sealing ring auxiliary lip is close to the inner ring line segment I, a gap is reserved between the inner sealing ring main lip and the inner ring line segment I, the inner ring line segment I and the inner ring line segment II form a bearing inner ring inclined plane sealing groove, and the inner sealing ring main lip, the inner sealing ring auxiliary lip and.
The inner side of the inner-layer sealing ring is a bearing cavity.
And the inclination angle of the inner ring line segment II is 17 +/-3 degrees.
The single-layer bearing sealing ring, the outer-layer sealing ring and the inner-layer sealing ring are all composed of an inner sealing ring framework and an outer sealing ring rubber.
The invention has the beneficial effects that: the structure of the invention adopts a sealing structure combining the inclined plane sealing and the double-lip sealing of the sealing ring, thereby enhancing the sealing performance of the bearing, effectively preventing external foreign matters (water, slurry and dust) from entering the interior of the bearing and prolonging the sealing life of the bearing.
Drawings
FIG. 1 is a schematic view of a single layer seal configuration of the present invention;
fig. 2 is a schematic view of a double-layer sealing structure of the present invention.
Description of reference numerals: the bearing comprises a bearing outer ring 1, a bearing inner ring 2, an inner ring line segment I2-1, an inner ring line segment II 2-2, a single-layer bearing sealing ring 3, a sealing ring main lip 4, a sealing ring auxiliary lip 5, a sealing ring pressure reduction groove 6, an outer sealing ring 7, an inner sealing ring 8, an inner sealing ring main lip 9, an inner sealing ring auxiliary lip 10, an inner sealing ring extension lip 11, a bearing inner ring inclined plane sealing groove 12, a bearing cavity 13, an outer sealing ring main lip 14, a sealing ring framework 15 and external sealing ring rubber 16.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in the figure, the bearing with the inclined plane sealing structure mainly comprises a bearing outer ring 1, a bearing inner ring 2 and a sealing ring mechanism, wherein the sealing ring mechanism is positioned between the bearing outer ring 1 and the bearing inner ring 2, the line segment of the bearing inner ring 2 close to the sealing ring mechanism comprises an inner ring line segment I2-1 and an inner ring line segment II 2-2, and the inner ring line segment I2-1 and the inner ring line segment II 2-2 form a multi-section inclined plane structure. The inclination angle of the inner circle line segment II 2-2 is 17 +/-3 degrees.
The sealing ring mechanism is a single-layer bearing sealing ring 3, a sealing ring main lip 4 and a sealing ring auxiliary lip 5 are arranged on the single-layer bearing sealing ring 3, the sealing ring main lip 4 is in contact with an inner ring line segment II 2-2, the sealing ring auxiliary lip 5 is close to the inner ring line segment I2-1, a gap is reserved between the sealing ring auxiliary lip 5 and the inner ring line segment I (2-1), and the sealing ring main lip 4, the sealing ring auxiliary lip 5, the inner ring line segment I2-1 and the inner ring line segment II 2-2 form a labyrinth sealing space. And a sealing ring pressure reduction groove 6 is arranged on the single-layer bearing sealing ring 3 close to the sealing ring main lip 4.
In the case where the bearing is well sealed externally, a single-layer bevel seal structure is used independently. Grease can be stored in the labyrinth seal space, prevent that external foreign matter from getting into inside the bearing to can prevent the inside grease outflow of bearing.
The sealing ring mechanism is composed of an outer sealing ring 7 and an inner sealing ring 8, an outer sealing ring main lip 14 is arranged on the outer sealing ring 7, an inner sealing ring main lip 9, an inner sealing ring auxiliary lip 10 and an inner sealing ring extension lip 11 are arranged on the inner sealing ring 8, the inner sealing ring main lip 9 is in contact with an inner ring line segment II 2-2, the inner sealing ring auxiliary lip 10 is close to the inner ring line segment I2-1 and is spaced from the inner ring line segment I2-1, a bearing inner ring inclined plane sealing groove 12 is formed by the inner ring line segment I2-1 and the inner ring line segment II 2-2, and the inner sealing ring main lip 9, the inner sealing ring auxiliary lip 10 and the bearing inner ring inclined plane sealing. The inner side of the inner layer sealing ring 8 is a bearing cavity 13.
The single-layer bearing sealing ring 3, the outer-layer sealing ring 7 and the inner-layer sealing ring 8 are all composed of an inner sealing ring framework 15 and an outer sealing ring rubber 16.
When water and foreign matters exist outside the bearing, the outer sealing ring 7 is additionally arranged for combined use, the inner sealing ring 8 expands the inner sealing ring extending lip 11 to form a double-layer inclined plane sealing structure, and the waterproof performance is better.
The outer sealing washer prevents 7 that foreign matters such as the outside silt of the overwhelming majority, water from getting into inside the bearing, becomes 1 st pass of gate, and inside inner sealing washer extension lip 11 got into the bearing as the surplus outside foreign matter of 2 nd pass of gate, the vice lip 10 of inner sealing washer and bearing inner race inclined plane seal groove 12 formation labyrinth seal of inner sealing washer main lip 9 and inner sealing washer, as 3 rd pass of gate thoroughly prevent that outside foreign matter from getting into inside the bearing.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.

Claims (7)

1. The utility model provides a bearing of inclined plane seal structure, mainly includes bearing inner race (2) and sealing washer mechanism, characterized by: the sealing ring mechanism is arranged between the bearing outer ring (1) and the bearing inner ring (2), the line section of the bearing inner ring (2) close to the sealing ring mechanism comprises an inner ring line section I (2-1) and an inner ring line section II (2-2), and the inner ring line section I (2-1) and the inner ring line section II (2-2) form a multi-section inclined plane structure.
2. The bevel seal structure bearing according to claim 1, wherein: the sealing ring mechanism is a single-layer bearing sealing ring (3), a sealing ring main lip (4) and a sealing ring auxiliary lip (5) are arranged on the single-layer bearing sealing ring (3), the sealing ring main lip (4) is in contact with an inner ring line segment II (2-2), the sealing ring auxiliary lip (5) is close to the inner ring line segment I (2-1), a gap is reserved between the sealing ring auxiliary lip and the inner ring line segment I (2-1), and the sealing ring main lip (4), the sealing ring auxiliary lip (5), the inner ring line segment I (2-1) and the inner ring line segment II (2-2) form a labyrinth sealing space.
3. The bevel seal structure bearing according to claim 2, wherein: and a sealing ring decompression groove (6) is arranged on the single-layer bearing sealing ring (3) close to the sealing ring main lip (4).
4. The bevel seal structure bearing according to claim 1, wherein: the sealing ring mechanism is composed of an outer sealing ring (7) and an inner sealing ring (8), an outer sealing ring main lip (14) is arranged on the outer sealing ring (7), an inner sealing ring main lip (9) is arranged on the inner sealing ring (8), an inner sealing ring auxiliary lip (10) and an inner sealing ring extension lip (11) are arranged on the inner sealing ring auxiliary lip (10), the inner sealing ring main lip (9) is in contact with an inner ring line segment II (2-2), the inner sealing ring auxiliary lip (10) is close to an inner ring line segment I (2-1), a gap is reserved between the inner sealing ring auxiliary lip and the inner ring line segment I (2-1), the inner ring line segment I (2-1) and the inner ring line segment II (2-2) form a bearing inner ring inclined plane sealing groove (12), and the inner sealing ring main lip (9), the inner sealing ring auxiliary.
5. The bevel seal structure bearing according to claim 4, wherein: and a bearing cavity (13) is formed in the inner side of the inner-layer sealing ring (8).
6. The bevel seal structure bearing according to claim 1, wherein: the inclination angle of the inner ring line segment II (2-2) is 17 +/-3 degrees.
7. The bearing of a bevel seal structure according to claim 2 or 4, wherein: the single-layer bearing sealing ring (3), the outer-layer sealing ring (7) and the inner-layer sealing ring (8) are all composed of an inner sealing ring framework (15) and an outer sealing ring rubber (16).
CN201910988368.6A 2019-10-17 2019-10-17 Bearing with inclined plane sealing structure Pending CN110848266A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910988368.6A CN110848266A (en) 2019-10-17 2019-10-17 Bearing with inclined plane sealing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910988368.6A CN110848266A (en) 2019-10-17 2019-10-17 Bearing with inclined plane sealing structure

Publications (1)

Publication Number Publication Date
CN110848266A true CN110848266A (en) 2020-02-28

Family

ID=69596293

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910988368.6A Pending CN110848266A (en) 2019-10-17 2019-10-17 Bearing with inclined plane sealing structure

Country Status (1)

Country Link
CN (1) CN110848266A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114776714A (en) * 2022-04-28 2022-07-22 洛阳轴承研究所有限公司 Contact bearing seal structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114776714A (en) * 2022-04-28 2022-07-22 洛阳轴承研究所有限公司 Contact bearing seal structure

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