CN203023297U - Labyrinth seal structure of main shaft bearing of double-geared roller crusher - Google Patents

Labyrinth seal structure of main shaft bearing of double-geared roller crusher Download PDF

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Publication number
CN203023297U
CN203023297U CN2012206179971U CN201220617997U CN203023297U CN 203023297 U CN203023297 U CN 203023297U CN 2012206179971 U CN2012206179971 U CN 2012206179971U CN 201220617997 U CN201220617997 U CN 201220617997U CN 203023297 U CN203023297 U CN 203023297U
Authority
CN
China
Prior art keywords
ring
labyrinth
seal
main shaft
shaped
Prior art date
Application number
CN2012206179971U
Other languages
Chinese (zh)
Inventor
卢崇劭
陈希红
叶龙
祁建
周鸣宇
郎猛
孔丹
Original Assignee
北方重工集团有限公司
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 北方重工集团有限公司 filed Critical 北方重工集团有限公司
Priority to CN2012206179971U priority Critical patent/CN203023297U/en
Application granted granted Critical
Publication of CN203023297U publication Critical patent/CN203023297U/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/44Free-space packings
    • F16J15/447Labyrinth packings
    • F16J15/4476Labyrinth packings with radial path
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/34Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3436Pressing means
    • F16J15/3456Pressing means without external means for pressing the ring against the face, e.g. slip-ring with a resilient lip

Abstract

The utility model provides a labyrinth seal structure of a main shaft bearing of a double-geared roller crusher in surface mine or underground coal mine industry. The structure consists of a movable labyrinth ring, a sealing part, a fixed labyrinth ring and a shaft cover, wherein the movable labyrinth ring and the fixed labyrinth ring form labyrinth seal, the movable labyrinth ring rotates along a main shaft, the fixed labyrinth ring is fixed on a bearing pedestal by a fastener, the sealing part is arranged between the fixed labyrinth ring and the shaft cover, the shaft cover is in interference fit connection with the main shaft (7) and rotates along with the main shaft (7), an outlet of the bearing labyrinth seal is additionally provided with a V-shaped seal ring, the V-shaped seal ring is respectively and closely contacted with sides A and B of a ring-shaped groove of the movable labyrinth ring, an elastic seal lip of the V-shaped seal ring is closely contacted with a bottom surface C of the ring-shaped groove of the fixed labyrinth ring, the V-shaped seal ring rotates along with the movable labyrinth ring, and the elastic seal lip of the V-shaped seal ring and the bottom surface C of the ring-shaped groove of the fixed labyrinth ring form a seal surface. According to the seal structure which consists of the V-shaped seal ring, the labyrinth seal, the sealing part and the shaft cover, the labyrinth seal internally forms a seal space to prevent dust from entering and lubricating grease from outflowing (note: sequence 7 is not labeled in drawings). The outlet of the bearing labyrinth seal is provided with the V-shaped seal ring to prevent lubricating grease in the labyrinth seal from losing and a mass of lubricating grease from entering into a crushing cavity, and according to the V-shaped seal ring, a certain pressure is formed in the labyrinth ring to prevent dust from entering, so that the seal effect of the labyrinth ring can be enhanced.

Description

A kind of labyrinth seal structure of double-geared roller crusher main shaft bearing
Technical field
The utility model relates to the labyrinth seal structure of a kind of double-geared roller crusher main shaft bearing in surface mine or downhole coal mine industry.
Background technique
Double-geared roller crusher is a kind of disintegrating apparatus that bulk materials is broken into piece material, usually uses in mine or downhole coal mine in the open, and due to work under bad environment, dust particale is more, therefore bearing needs good sealing state.In prior art, the bearing seal state often has two kinds of situations, and a kind of is that labyrinth seal causes dust to enter for shortage of oil, and bearing is even damaged in impact, and then directly affects working efficiency and the working life of disintegrating apparatus; Another kind is a large amount of excessive situations of lubricant grease that cause because fuel feeding is sufficient, and leakage of oil seriously can cause fire peril when being used for broken coal.Both of these case once occurred on the disintegrating apparatus of home and abroad, and problem is difficult to solve.Therefore, the labyrinth seal structure of a kind of double-geared roller crusher main shaft bearing of development is the new problem that needs to be resolved hurrily always.
The model utility content
The purpose of this utility model is to provide a kind of labyrinth seal structure of double-geared roller crusher main shaft bearing, above-mentioned deficiency for prior art, this labyrinth seal structure guarantees that bearing is in good sealed environment, simultaneously grease does not occur again excessive in a large number, effectively economizes on the grease amount.
the purpose of this utility model is achieved in that a kind of labyrinth seal structure of double-geared roller crusher main shaft bearing is by moving labyrinth ring, Sealing, quiet labyrinth ring, axle sleeve forms, moving labyrinth ring and quiet labyrinth ring form labyrinth seal, moving labyrinth ring rotates with main shaft, quiet labyrinth ring is fixed on bearing support by fastening piece, Sealing is between quiet labyrinth ring and axle sleeve, axle sleeve is connected with the main shaft interference fit, and rotate with main shaft, set up a V-shaped seal ring in the bearing labyrinth outlet port, the annular groove A face of V-shaped seal ring and moving labyrinth ring and B face be close contact respectively, the annular groove bottom surface C close contact of the elastic packing lip of V-shaped seal ring and quiet labyrinth ring, the servo-actuated labyrinth ring rotation of V-shaped seal ring, the annular groove bottom surface C of the elastic packing lip of V-shaped seal ring and quiet labyrinth ring forms sealing surfaces simultaneously, like this by V-shaped seal ring, labyrinth seal, Sealing and axle sleeve form the labyrinth seal structure of main shaft bearing, this sealing configuration makes and forms enclosed space in labyrinth seal, stop dust to enter, and prevent that lubricating grease is excessive.
Main points of the present utility model are its structure and working principle.its working principle is, moving labyrinth ring and quiet labyrinth ring form labyrinth seal, moving labyrinth ring rotates with main shaft, axle sleeve is connected with the main shaft interference fit, and rotate with main shaft, the annular groove A face of V-shaped seal ring and moving labyrinth ring and B face be close contact respectively, the annular groove bottom surface C close contact of the elastic packing lip of V-shaped seal ring and quiet labyrinth ring, the servo-actuated labyrinth ring rotation of V-shaped seal ring, the annular groove bottom surface C of the elastic packing lip of V-shaped seal ring and quiet labyrinth ring forms sealing surfaces simultaneously, like this by V-shaped seal ring, labyrinth seal, Sealing and axle sleeve form the labyrinth seal structure of main shaft bearing, this sealing configuration makes and forms enclosed space in labyrinth seal, labyrinth seal produces certain pressure after injecting grease, stop dust to enter, and prevent that lubricating grease is excessive.
A kind of labyrinth seal structure of double-geared roller crusher main shaft bearing compared with prior art, have in the labyrinth seal outlet port V-shaped seal ring is set, can stop lubricating grease loss in labyrinth seal, prevent that a large amount of lubricating grease from entering crusher chamber, and this place's V-shaped seal ring can make and form certain pressure in labyrinth seal, stop entering of dust, strengthen the advantages such as sealing effect of labyrinth seal, will be widely used in surface mine or downhole coal mine industry.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is elaborated.
Fig. 1 is structural representation of the present utility model
Fig. 2 is the local enlarged diagram of Fig. 1
with reference to accompanying drawing, 1. the labyrinth seal structure of a double-geared roller crusher main shaft bearing is by moving labyrinth ring 1, Sealing 3, quiet labyrinth ring 4, axle sleeve 6 forms, moving labyrinth ring 1 and quiet labyrinth ring 4 form labyrinth seal, moving labyrinth ring 1 rotates with main shaft, quiet labyrinth ring 4 is fixed on bearing support 5 by fastening piece, Sealing 3 is between quiet labyrinth ring 4 and axle sleeve 6, axle sleeve 6 is connected with main shaft 7 interference fit, and with main shaft 7 rotations, it is characterized in that: set up a V-shaped seal ring 2 in the bearing labyrinth outlet port, the annular groove A face of V-shaped seal ring 2 and moving labyrinth ring 1 and B face be close contact respectively, the annular groove bottom surface C close contact of the elastic packing lip of V-shaped seal ring 2 and quiet labyrinth ring 4, servo-actuated labyrinth ring 1 rotation of V-shaped seal ring 2, the annular groove bottom surface C of the elastic packing lip of V-shaped seal ring 2 and quiet labyrinth ring 4 forms sealing surfaces simultaneously, like this by V-shaped seal ring 2, labyrinth seal, Sealing 3 and axle sleeve 6 form the labyrinth seal structure of main shaft bearing, this sealing configuration makes and forms enclosed space in labyrinth seal, stop dust to enter, and prevent that lubricating grease is excessive.

Claims (1)

1. the labyrinth seal structure of a double-geared roller crusher main shaft bearing is by moving labyrinth ring, Sealing, quiet labyrinth ring, axle sleeve forms, moving labyrinth ring and quiet labyrinth ring form labyrinth seal, moving labyrinth ring rotates with main shaft, quiet labyrinth ring is fixed on bearing support by fastening piece, Sealing is between quiet labyrinth ring and axle sleeve, axle sleeve is connected with the main shaft interference fit, and rotate with main shaft, it is characterized in that: set up a V-shaped seal ring in the bearing labyrinth outlet port, the annular groove A face of V-shaped seal ring and moving labyrinth ring and B face be close contact respectively, the annular groove bottom surface C close contact of the elastic packing lip of V-shaped seal ring and quiet labyrinth ring, the servo-actuated labyrinth ring rotation of V-shaped seal ring, the annular groove bottom surface C of the elastic packing lip of V-shaped seal ring and quiet labyrinth ring forms sealing surfaces simultaneously, like this by V-shaped seal ring, labyrinth seal, Sealing and axle sleeve form the labyrinth seal structure of main shaft bearing, this sealing configuration makes and forms enclosed space in labyrinth seal, stop dust to enter, and prevent that lubricating grease is excessive.
CN2012206179971U 2012-11-20 2012-11-20 Labyrinth seal structure of main shaft bearing of double-geared roller crusher CN203023297U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012206179971U CN203023297U (en) 2012-11-20 2012-11-20 Labyrinth seal structure of main shaft bearing of double-geared roller crusher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012206179971U CN203023297U (en) 2012-11-20 2012-11-20 Labyrinth seal structure of main shaft bearing of double-geared roller crusher

Publications (1)

Publication Number Publication Date
CN203023297U true CN203023297U (en) 2013-06-26

Family

ID=48647286

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012206179971U CN203023297U (en) 2012-11-20 2012-11-20 Labyrinth seal structure of main shaft bearing of double-geared roller crusher

Country Status (1)

Country Link
CN (1) CN203023297U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329467A (en) * 2014-10-16 2015-02-04 武汉新置密封科技有限公司 S-shaped multiple labyrinth seal device
WO2016000472A1 (en) * 2014-07-02 2016-01-07 舍弗勒技术股份两合公司 Labyrinth-type seal bearing
CN105794091A (en) * 2013-10-22 2016-07-20 比伯拉赫利勃海尔零部件有限公司 Labyrinth seal for three-phase machines
CN106051161A (en) * 2016-06-24 2016-10-26 张家港市兰航机械有限公司 Sealing structure for filtering machine
CN106468359A (en) * 2015-08-14 2017-03-01 斯凯孚公司 The bearing assembled unit of track vehicle traction electric machine
CN107237827A (en) * 2016-03-28 2017-10-10 沈阳海默数控机床有限公司 A kind of sealing structure of machine tool chief axis
KR102262544B1 (en) * 2019-10-15 2021-06-07 주식회사 포스코 Devide for preventing foreign meterial mixing of wheel shaft bearing

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10103597B2 (en) 2013-10-22 2018-10-16 Liebherr-Components Biberach Gmbh Labyrinth seal for three-phase machines
CN105794091A (en) * 2013-10-22 2016-07-20 比伯拉赫利勃海尔零部件有限公司 Labyrinth seal for three-phase machines
US9926981B2 (en) 2014-07-02 2018-03-27 Schaeffler Technologies AG & Co. KG Labyrinth seal bearing
CN105465187A (en) * 2014-07-02 2016-04-06 舍弗勒技术股份两合公司 Labyrinth type sealing bearing
CN105465187B (en) * 2014-07-02 2019-04-12 舍弗勒技术股份两合公司 Labyrinth sealing bearing
WO2016000472A1 (en) * 2014-07-02 2016-01-07 舍弗勒技术股份两合公司 Labyrinth-type seal bearing
CN104329467B (en) * 2014-10-16 2017-01-18 武汉新置密封科技有限公司 S-shaped multiple labyrinth seal device
CN104329467A (en) * 2014-10-16 2015-02-04 武汉新置密封科技有限公司 S-shaped multiple labyrinth seal device
CN106468359A (en) * 2015-08-14 2017-03-01 斯凯孚公司 The bearing assembled unit of track vehicle traction electric machine
CN107237827A (en) * 2016-03-28 2017-10-10 沈阳海默数控机床有限公司 A kind of sealing structure of machine tool chief axis
CN106051161B (en) * 2016-06-24 2018-05-08 张家港市兰航机械有限公司 A kind of sealing structure of filter
CN106051161A (en) * 2016-06-24 2016-10-26 张家港市兰航机械有限公司 Sealing structure for filtering machine
KR102262544B1 (en) * 2019-10-15 2021-06-07 주식회사 포스코 Devide for preventing foreign meterial mixing of wheel shaft bearing

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130626

Termination date: 20171120

CF01 Termination of patent right due to non-payment of annual fee