WO2002061309A1 - Manchon en acier trempe a segments multiples resistant a l'usure pour bagues d'etancheite d'arbres de broyeurs - Google Patents

Manchon en acier trempe a segments multiples resistant a l'usure pour bagues d'etancheite d'arbres de broyeurs Download PDF

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Publication number
WO2002061309A1
WO2002061309A1 PCT/IN2001/000012 IN0100012W WO02061309A1 WO 2002061309 A1 WO2002061309 A1 WO 2002061309A1 IN 0100012 W IN0100012 W IN 0100012W WO 02061309 A1 WO02061309 A1 WO 02061309A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
oil seal
segment
wear resistant
shaft
Prior art date
Application number
PCT/IN2001/000012
Other languages
English (en)
Inventor
Abhay Vishwas Ranade
Original Assignee
Abhay Vishwas Ranade
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 Abhay Vishwas Ranade filed Critical Abhay Vishwas Ranade
Priority to PCT/IN2001/000012 priority Critical patent/WO2002061309A1/fr
Publication of WO2002061309A1 publication Critical patent/WO2002061309A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/004—Shape or construction of rollers or balls

Definitions

  • This invention is in the field of a part of the pulverization equipment of coal in a Thermal Power Station [TPS]. More particularly, this invention relates to improved multi-segment hardened, wear resistant sleeve for oil seal
  • roller journal shafts are widely used in coal mills of thermal power stations (TPS), cement plants, steel plants and the like industries wherein it is a matter of observation that in any assembly of roller
  • journal shaft assembly there is provided an oil seal to prevent pulverized material entering the bearings on the journal shaft.
  • pulverized coal is abrasive in nature.
  • the oil seal for various reasons, creates groove on the journal shaft. Once the groove is formed, the ingraced dust causes bearing failure. To prevent groove formation, there is no
  • Object of the present invention aims at devising multi- segment sleeve for prepared roller journal and the like shafts whereby the initial fitment or reversed fitment or replacement fitment of the sleeve can be done without the need of removing the bearing; that means in short, object of the present invention aims at manufacturing roller journal shaft with multi- segment sleeve; &, secondly, even if the sleeve is required to be changed, it drastically reduces down-time, and it can instantly be changed being a multi- segmented construction without requiring the bearings to be removed; and so, providing multi-segment sleeve is better than a single piece sleeve which in turn is better than no sleeve at all.
  • the multi-segment sleeve provides facility of changing the sleeve if and when necessary without requiring to remove the shaft from the site.
  • the sleeve can be used twice, by reversing the sleeve. This is possible and achieved with reversible sleeve marginally wider than single piece sleeve. This new sleeve offers space for second time re-use. The placement position of sleeve over the shaft plays an important role.
  • this invention delays (if not eliminates) the formation of groove and subsequent losses.
  • DRAWINGS The invention will now be described with the help of a drawings accompanying this specification wherein salient features have been shown by suitable numerals and referred to appropriately in the following description. Figures are schematic. Drawing comprises 3 figures.
  • Fig.l shows schematic view of a typical sub-assembly of journal in vogue for pulverizing coal or such other materials on very large scales at thermal power stations, (TPS), cement factories and the like.
  • TPS thermal power stations
  • journal head assembly and skirt are not shown.
  • Fig.2 shows perspective of the multi-segment sleeve for roller journal and the like shaft as per present invention
  • Fig.3 shows a variation in the construction of multi-segment sleeve.
  • fig 1 shows the background art wherein the roller journal assembly is shown to comprise roller journal shaft (2) having tapered trunnion seat (3), an oil seal (5) kept within upper journal housing (6), the shaft (2) extends downwards and there is provided a bearing (7) on the upper portion and another bearing (8) at the lower portion of the shaft.
  • Upper bearing (7) is kept in upper journal housing (6).
  • the lower bearing of the shaft is in lower journal housing (9).
  • the spacer (13), a locking plate and nut (10) are also provided in the assembly.
  • the lower journal housing carries a grinding roll (11).
  • the grinding roll (11) is secured to lower journal housing (9) by lock-nut (12).
  • FIG. 2 and 3 which show the multi segment sleeve and the roller journal shaft as per present invention, there is created recesses (12), width of which will be adequate to accept and accommodate sleeve (4).
  • the seat may be circumferentially circular or as a variation it could be polygonal with corresponding inner surface (15) as distinctly seen in fig.3.
  • the roller journal shaft (2) is having its tapered trunnion seat (3), below that there is provided recess (12) matching the inner portion of the split sleeve (4).
  • the sleeve is a multi-segment contraption (4) having holes (16) for fixing the sleeve over the recessed portion.
  • multi-segment sleeve provides facility of reversing or replacing the sleeve, in situ, as and when necessary without requiring to remove the shaft from the site.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Crushing And Grinding (AREA)

Abstract

La présente invention concerne un manchon amélioré en acier trempé à segments multiples résistant à l'usure destiné à la partie bague d'étanchéité d'un arbre de tourillon de broyeur Raymond et de broyeurs de type similaire et à la partie bague/garniture d'étanchéité d'arbres similaires, la pluralité de segments dudit manchon étant usinés avec une surface extérieure dure et lisse résistante à l'usure, et étant en outre pourvus d'un mécanisme qui permet de monter le manchon fixe sur l'arbre précité grâce à des fixations tels que des vis, le manchon à segments multiples étant monté sur des encoches préparées de façon adéquate, comportant une zone d'assise circulaire ou polygonale correspondante et pouvant être utilisé deux fois grâce aux caractéristiques nouvelles de sa conception qui incluent des positions de placement et une largeur augmentée du manchon.
PCT/IN2001/000012 2001-02-02 2001-02-02 Manchon en acier trempe a segments multiples resistant a l'usure pour bagues d'etancheite d'arbres de broyeurs WO2002061309A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IN2001/000012 WO2002061309A1 (fr) 2001-02-02 2001-02-02 Manchon en acier trempe a segments multiples resistant a l'usure pour bagues d'etancheite d'arbres de broyeurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IN2001/000012 WO2002061309A1 (fr) 2001-02-02 2001-02-02 Manchon en acier trempe a segments multiples resistant a l'usure pour bagues d'etancheite d'arbres de broyeurs

Publications (1)

Publication Number Publication Date
WO2002061309A1 true WO2002061309A1 (fr) 2002-08-08

Family

ID=11076301

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2001/000012 WO2002061309A1 (fr) 2001-02-02 2001-02-02 Manchon en acier trempe a segments multiples resistant a l'usure pour bagues d'etancheite d'arbres de broyeurs

Country Status (1)

Country Link
WO (1) WO2002061309A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102728437A (zh) * 2011-11-21 2012-10-17 王今奇 自润滑磨辊
CN102728437B (zh) * 2011-11-21 2016-12-14 上海申重矿机科技有限公司 自润滑磨辊

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1731758A (en) * 1928-06-04 1929-10-15 Viden Erik Bearing
US1967573A (en) * 1932-12-08 1934-07-24 Garlock Packing Co Sectional machinery packing
US3438686A (en) * 1967-01-23 1969-04-15 Murray Co Inc Bearing support bushing
DE3633400A1 (de) * 1986-10-01 1988-04-14 Halberg Maschbau Gmbh & Co Wellenschutzhuelse fuer gleitlager und laufflaechen von dichtungen und stopfbuchspackungen
US4764035A (en) * 1987-11-06 1988-08-16 Quadion Corporation Molded self-lubricating split-ring bearing assembly
GB2206932A (en) * 1987-07-10 1989-01-18 Richter Gedeon Vegyeszet Stuffing box for sealing large-scale deflection shafts

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1731758A (en) * 1928-06-04 1929-10-15 Viden Erik Bearing
US1967573A (en) * 1932-12-08 1934-07-24 Garlock Packing Co Sectional machinery packing
US3438686A (en) * 1967-01-23 1969-04-15 Murray Co Inc Bearing support bushing
DE3633400A1 (de) * 1986-10-01 1988-04-14 Halberg Maschbau Gmbh & Co Wellenschutzhuelse fuer gleitlager und laufflaechen von dichtungen und stopfbuchspackungen
GB2206932A (en) * 1987-07-10 1989-01-18 Richter Gedeon Vegyeszet Stuffing box for sealing large-scale deflection shafts
US4764035A (en) * 1987-11-06 1988-08-16 Quadion Corporation Molded self-lubricating split-ring bearing assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102728437A (zh) * 2011-11-21 2012-10-17 王今奇 自润滑磨辊
CN102728437B (zh) * 2011-11-21 2016-12-14 上海申重矿机科技有限公司 自润滑磨辊

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