CN201339658Y - Bearing with multiple sealing surface structure - Google Patents

Bearing with multiple sealing surface structure Download PDF

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Publication number
CN201339658Y
CN201339658Y CNU2009200835195U CN200920083519U CN201339658Y CN 201339658 Y CN201339658 Y CN 201339658Y CN U2009200835195 U CNU2009200835195 U CN U2009200835195U CN 200920083519 U CN200920083519 U CN 200920083519U CN 201339658 Y CN201339658 Y CN 201339658Y
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CN
China
Prior art keywords
bearing
seal
ring
outer ring
sealing
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.)
Expired - Lifetime
Application number
CNU2009200835195U
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Chinese (zh)
Inventor
杜大勇
梅松
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.)
Dongfeng Motor Corp
Original Assignee
Dongfeng Motor 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 Dongfeng Motor Corp filed Critical Dongfeng Motor Corp
Priority to CNU2009200835195U priority Critical patent/CN201339658Y/en
Application granted granted Critical
Publication of CN201339658Y publication Critical patent/CN201339658Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Rolling Contact Bearings (AREA)
  • Sealing Of Bearings (AREA)

Abstract

The utility model discloses a bearing with multiple sealing surface structure, which comprises a bearing outer ring, a bearing inner ring and a roller arranged between the bearing outer ring and the bearing inner ring, wherein the roller is mounted on a retainer, a seal ring is arranged on the end part between the bearing outer ring and the bearing inner ring; a seal groove is arranged on the inner wall of the bearing outer ring, a seal convex ring is arranged on the outer circumferential surface of the seal ring and the seal convex ring is arranged in the seal groove on the inner wall of the bearing outer ring. As bearing outer ring structure is changed in the utility model and a seal convex ring is arranged on the outer circumferential surface of the seal ring at the same time, the seal surface with multiple concave-convex seal segment surfaces is formed between the bearing outer ring and the seal ring so that the sealing effect is reinforced and the service life of bearing is improved.

Description

Bearing with multi-sealing surface structure
Technical field
The utility model belongs to vehicle component, is specifically related to a kind of bearing.
Background technique
Automotive hub bearing is a relatively independent device, is contained on the break of car, directly contacts with dust, mud, water, and Environmental Conditions is abominable, so structural design is most important, requires to have good sealing property.Establish seal ring between the bearing outer ring of existing automotive hub bearing and the bearing inner race, sealing surface is the single plane sealing surface between bearing outer ring and the seal ring.From the use and the test situation of present bearing, damage of bearings is all caused by seal failure greatly, and the main cause of seal failure is to invade from the sealing surface pollution from the bearing foreign matter to cause interfacial corrosion, causes seal failure.Bearing wear has been quickened in seal failure, and the serious bearing that causes is scrapped.
Summary of the invention
The purpose of this utility model is to provide a kind of bearing with multi-sealing surface structure, to address the above problem.
The technical solution of the utility model is: the bearing with multi-sealing surface structure, it comprises bearing outer ring, bearing inner race, the roller of establishing between bearing outer ring and the bearing inner race, roller are installed on the retainer, and the end between bearing outer ring and the bearing inner race is provided with seal ring; The inwall of bearing outer ring is provided with seal groove, and the seal ring with outer face is established the sealing bulge loop, and the sealing bulge loop is located in the seal groove on the inwall of bearing outer ring.
Establish two seal grooves on the inwall of described bearing outer ring, the seal ring with outer face is established two sealing bulge loops, and two sealing bulge loops are located at respectively in two seal grooves on the inwall of bearing outer ring.
The diameter of inboard seal groove is greater than the diameter of outside seal groove; The diameter of the inner seal bulge loop on the seal ring with outer face is greater than the diameter of outer side sealing bulge loop.
Because the present invention has changed the structure of bearing shaft bearing outer-ring, the sealing bulge loop is set on the seal ring with outer face simultaneously, make that the sealing surface between bearing shaft bearing outer-ring and the seal ring is concavo-convex a plurality of seal section faces, strengthened sealing effect, prolonged the working life of bearing.
Description of drawings
Fig. 1 has the bearing structure schematic representation of multi-sealing surface structure.
Fig. 2 sealed structural representation.
Embodiment
Present embodiment is used for the explanation to this claim; protection scope of the present invention is not limited to down the description of array structure, and those skilled in the art all is protection domains of the present utility model according to the indicative and indicative structure of doing that is different from present embodiment of the technological scheme that this claim proposes.
As shown in Figure 1, bearing is established two rollers 6 by 2, two bearing inner races 4 that connected by snap ring 1 of bearing outer ring between bearing outer ring 2 and the bearing inner race 4, and roller 6 is installed on the retainer 3.End between bearing outer ring 2 and the bearing inner race 4 is provided with seal ring 5.
As shown in Figure 2, the inwall of bearing outer ring 2 is provided with seal groove, and present embodiment middle (center) bearing outer ring 2 is provided with seal groove 7 and seal groove 8, and the diameter of inner seal groove 8 is greater than the diameter of outside seal groove 7.On the periphery of seal ring 5 corresponding establish two the sealing bulge loops 9,10, the diameter of inner seal bulge loop 10 is greater than the diameter of outer side sealing bulge loop 9.The shape of seal groove 7 and seal groove 8 can make shapes such as circular arc, trapezoidal, rectangle, square, and the sealing bulge loop 9 and the shape of sealing bulge loop 10 and the shape of seal groove 7 and seal groove 8 are complementary.Form a plurality of sealing surfaces between two seal grooves and the sealing bulge loop, prolonged seal length greatly.Seal ring 5 is provided with skeleton 11, and seal ring is provided with 12,13, two sealings, 12,13 lip limits, two sealing lip limits and is " people " font.
In seal ring is pressed into bearing, touch sealing by two sealing lip edge joints between inner ring cylindrical and the rubber seal, owing to have certain distance to be about 5mm between sealing lip limit 12 and the sealing lip limit 13, on sealing lip limit 12, sealing lip limit 13 and bearing inner race form a sealed hollow, this cavity can bear certain pressure.When bearing assembly is worked, because frictional heating between roller rolling element and the interior raceway, the bearing cavity temperature raises, atmospheric pressure increases in the chamber of seal ring, form malleation, cause lubricant oil (machine oil) to leak easily, after closely contact is interference fit between the sealing lip limit inner ring cylindrical wall on the rubber seal, can bear bigger pressure; Effectively stop lubricant oil to leak.When bearing assembly quits work, when temperature drops to ambient temperature, hub bearing assembly inner chamber hot air reduces, internal pressure can be lower than barometric pressure, the outside air band the trend that outer lip place moisture and dust have infiltration, be subjected to the external pressure effect this moment, move in the chamber on the sealing lip limit of rubber seal, the effect of being under pressure of sealing lip limit makes the sealing bulge loop and surperficial paste tightr of the seal groove on the bearing outer ring inner headed face of seal ring with outer, stop moisture and dust to enter, the small amount of moisture of accumulation in the chamber through running next time, is cleared up away the small amount of moisture that accumulates in the chamber by centrifugal action.

Claims (5)

1, a kind of bearing with multi-sealing surface structure, it comprises bearing outer ring, bearing inner race, the roller of establishing between bearing outer ring and the bearing inner race, roller are installed on the retainer, it is characterized in that the end between bearing outer ring and the bearing inner race is provided with seal ring; The inwall of bearing outer ring is provided with seal groove, and the seal ring with outer face is established the sealing bulge loop, and the sealing bulge loop is located in the seal groove on the inwall of bearing outer ring.
2, the bearing that has multi-sealing surface structure according to claim 1 is characterized in that establishing two seal grooves on the inwall of bearing outer ring, and the seal ring with outer face is established two sealing bulge loops, and two sealing bulge loops are located at respectively in two seal grooves on the inwall of bearing outer ring.
3,, it is characterized in that the diameter of the diameter of inboard seal groove greater than outside seal groove as having the bearing of multi-sealing surface structure as described in the claim 2; The diameter of the inner seal bulge loop on the seal ring with outer face is greater than the diameter of outer side sealing bulge loop.
4, the bearing that has multi-sealing surface structure according to claim 1 is characterized in that establishing in the seal ring skeleton; Seal ring is provided with two sealing lip limits, and two sealing lip limits are " people " font.
5, the bearing that has multi-sealing surface structure according to claim 1 is characterized in that establishing between bearing outer ring and the bearing inner race two rollers.
CNU2009200835195U 2009-01-19 2009-01-19 Bearing with multiple sealing surface structure Expired - Lifetime CN201339658Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2009200835195U CN201339658Y (en) 2009-01-19 2009-01-19 Bearing with multiple sealing surface structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2009200835195U CN201339658Y (en) 2009-01-19 2009-01-19 Bearing with multiple sealing surface structure

Publications (1)

Publication Number Publication Date
CN201339658Y true CN201339658Y (en) 2009-11-04

Family

ID=41235206

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2009200835195U Expired - Lifetime CN201339658Y (en) 2009-01-19 2009-01-19 Bearing with multiple sealing surface structure

Country Status (1)

Country Link
CN (1) CN201339658Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101915288A (en) * 2010-08-04 2010-12-15 洛阳雷斯达传动有限公司 Clutch gearbox for slurry pump
CN102192239A (en) * 2011-04-20 2011-09-21 江苏钱潮轴承有限公司 Transmission ball bearing of automobile intermediate support
CN102242763A (en) * 2011-04-20 2011-11-16 江苏钱潮轴承有限公司 Thin-wall ball bearing for automobile clutch
CN102954116A (en) * 2012-09-26 2013-03-06 宁波美培林轴承有限公司 Dustproof cover for sealing bearing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101915288A (en) * 2010-08-04 2010-12-15 洛阳雷斯达传动有限公司 Clutch gearbox for slurry pump
CN101915288B (en) * 2010-08-04 2013-01-02 洛阳雷斯达传动有限公司 Clutch gearbox for slurry pump
CN102192239A (en) * 2011-04-20 2011-09-21 江苏钱潮轴承有限公司 Transmission ball bearing of automobile intermediate support
CN102242763A (en) * 2011-04-20 2011-11-16 江苏钱潮轴承有限公司 Thin-wall ball bearing for automobile clutch
CN102954116A (en) * 2012-09-26 2013-03-06 宁波美培林轴承有限公司 Dustproof cover for sealing bearing
CN102954116B (en) * 2012-09-26 2015-07-22 慈溪新美培林精密轴承有限公司 Dustproof cover for sealing bearing

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CX01 Expiry of patent term

Granted publication date: 20091104

CX01 Expiry of patent term