CN104627346A - Ship stern tube bearing dismounting method - Google Patents
Ship stern tube bearing dismounting method Download PDFInfo
- Publication number
- CN104627346A CN104627346A CN201410818545.3A CN201410818545A CN104627346A CN 104627346 A CN104627346 A CN 104627346A CN 201410818545 A CN201410818545 A CN 201410818545A CN 104627346 A CN104627346 A CN 104627346A
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- bearing
- pressing plate
- dismounting
- drill drift
- stern tube
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Abstract
The invention provides a ship stern tube bearing dismounting method. A ship stern tube dismounting tool is utilized to perform dismounting of a bearing in a ship stern tube. The ship stern tube bearing dismounting method comprises the steps of manufacturing and preparing the dismounting tool, scattering dry ices into a bearing hole, installing the dismounting tool, dismounting the dismounting tool and taking out the bearing. The ship stern tube bearing dismounting method is low in construction difficulty, simple in tool manufacture and low in cost, and the tool can be repeatedly used, is convenient to operate and good in using effect and is suitable for application of the ship stern tube bearing dismounting method under multiple environment conditions.
Description
Technical field
What the present invention proposed is ship stern tubular shaft method for dismounting.For on-the-spot practical application and the operation of the dismounting of ship stern tubular shaft, be applicable to 50,000 tons of dismountings to 30 ton capsize vessel oceangoing ships and tanker aft tubular shaft.
Background technology
Nowadays, in large, medium and small ship building process, at building berth installation phase, it is all the most important thing that ship stern pipe bow stern pipe holds installation, is all mostly to adopt interference fit between bearing and hole, by the pressing sleeve tool of specialty, ensure that bearing is correctly press-fit into place, simultaneously the later stage measures the gap of axle and bearing, axis hole cleanliness level, the clean degree of oil and axle system load etc., and meet technological requirement, boats and ships could navigate by water smoothly.
Boats and ships are in manufacture process or long-time running, and the replacing of stern tube bearing is also a large difficult point, and stern tube bearing needs the device of specialty to dismantle bearing.Due to various ships bearing type and size dimension inconsistent, entirely do not possess supporting professional device.Some factories adopt special frock to fix magnetic force cobalt, carry out milling grain by the grabage shoot of bearing, bearing two side milling is broken, then removes, and the factory also had uses the mode of gouge to carry out destructiveness to bearing and removes.Above method can not ensure the integraty of bearing, also may cause stern pore surface abrasion.
Summary of the invention
In order to overcome the shortcoming that the dismounting of existing ship stern tube bearing exists, the present invention proposes ship stern tubular shaft method for dismounting.The method is by dismantling devices, and substep carries out the dismounting of bearing, solves the technical matters of ship stern tubular shaft dismounting.
The scheme that technical solution problem of the present invention adopts is:
Utilize ship stern pipe withdrawing device, carry out the dismounting of ship stern pipe neck bearing.
Control step: made by withdrawing device, be sprinkled into dry ice, bearing removal operation and unload the process that bearing preserved by instrument in bearing hole.
Withdrawing device makes and prepares: bearing extractor makes and make bearing drill drift pressing plate frock, prepares dismounting bearing instrument and Hydraulic Pump.
Dry ice is sprinkled into: first put into bearing hole with calico or the layering of woven bag parcel dry ice in bearing hole; Dry ice fills up bearing bore substantially, freezing about 60 minutes, then dry ice is in layer withdrawn from, and stays a small amount of in bearing bore, measures the gap width of bearing outside diameter and stern tube shaft hole internal diameter, dismantle when gap width reaches 0.05mm ~ 0.15mm to bearing with clearance gauge;
Withdrawing device is installed: in stern tube shaft hole, the step of the second bearing drill drift pressing plate is installed to a mouth place in bearing, fixes position.With crane, leading screw is penetrated in stern tube shaft hole, through the center, hole of the second bearing drill drift pressing plate in stern tube shaft hole, fix with the second screw simultaneously, the leading screw chain block of stern pipe outside and suspender belt lifting; With crane lifting clutch shaft bearing drill drift pressing plate, clutch shaft bearing drill drift pressing plate is made to be arranged on leading screw, slowly move to stern pipe aft end face, clutch shaft bearing drill drift trigger squeeze processing plane and stern pipe aft end face are fitted, hydraulic top is enclosed within leading screw, and fix with the first screw, ensure that two end face bearing drill drift pressing plates fix relatively.Linked together by hydraulic strip between Hydraulic Pump and hydraulic top, to Hydraulic Pump pressurization, along with pressure increases, bearing is slowly extracted out, and period notices whether the stroke of hydraulic top meets the demands;
Unload withdrawing device and take out bearing: after holding extraction, remove frock, be lifted into perch deposit with suspender belt fixed type bearing.
Good effect, the inventive method difficulty of construction is little, and frock making is simple, and cost is low, and frock can repeated usage, and easy to operate, result of use is good, is applicable to the method for dismounting application of boats and ships stern tube bearing under multiple environmental conditions.
Accompanying drawing explanation
Fig. 1 is bearing removal schematic diagram of the present invention
In figure, 0. stern pipe, 01. bearing, 1. leading screw, 2. clutch shaft bearing drill drift pressing plate, 3. the second bearing drill drift pressing plate, 4. hydraulic top, 5. the first screw, 6. the second screw, 7. Hydraulic Pump.
Detailed description of the invention
Stern tube bearing withdrawing device structure, according to the figure, stern pipe 0 is built with bearing 01.
In the bearing of ship stern pipe, be interspersed with screw mandrel 1, screw mandrel one end is set with hydraulic top 3 by the first screw 2, and hydraulic top contacts with the clutch shaft bearing drill drift pressing plate 4 being arranged on bearing side, and clutch shaft bearing drill drift pressing plate withstands on the side of bearing; The opposite side screw mandrel of bearing is provided with the second bearing drill drift pressing plate 5 by the second screw 6.
Control step:
1, withdrawing device makes and prepares: bearing extractor makes and make bearing drill drift pressing plate frock, prepares dismounting bearing instrument and Hydraulic Pump;
2, in bearing hole, dry ice is sprinkled into: first put into bearing hole with calico or the layering of woven bag parcel dry ice;
Dry ice fills up bearing bore substantially, freezing about 60 minutes, then dry ice is in layer withdrawn from, and stays a small amount of in bearing bore, measures the gap width of bearing outside diameter and stern tube shaft hole internal diameter, dismantle when gap width reaches 0.05mm ~ 0.15mm to bearing with clearance gauge;
3, withdrawing device is installed: in stern tube shaft hole, the step of the second bearing drill drift pressing plate is installed to a mouth place in bearing, fixes position.With crane, leading screw is penetrated in stern tube shaft hole, through the center, hole of the second bearing drill drift pressing plate in stern tube shaft hole, fix with the second screw simultaneously, the leading screw chain block of stern pipe outside and suspender belt lifting; With crane lifting clutch shaft bearing drill drift pressing plate, clutch shaft bearing drill drift pressing plate is made to be arranged on leading screw, slowly move to stern pipe aft end face, clutch shaft bearing drill drift trigger squeeze processing plane and stern pipe aft end face are fitted, hydraulic top is enclosed within leading screw, and fix with the first screw, ensure that two end face bearing drill drift pressing plates fix relatively.Linked together by hydraulic strip between Hydraulic Pump and hydraulic top, to Hydraulic Pump pressurization, along with pressure increases, bearing is slowly extracted out, and period notices whether the stroke of hydraulic top meets the demands;
4, unload withdrawing device and take out bearing: after holding extraction, remove frock, be lifted into perch deposit with suspender belt fixed type bearing.
Feature:
The inventive method can carry out complete dismounting to ship stern tubular shaft, avoids, because destructiveness removes the integraty causing bearing, reducing damage stern tube shaft hole simultaneously.
The inventive method easy construction, saving workmen, frock making cost is low, and construction method is simple, and be easy to workmen and understand and operation, the engineering time is short, and work efficiency is high, ensure that the quality after the dismounting of ship stern tubular shaft and integraty.
Claims (2)
1. ship stern tubular shaft method for dismounting, withdrawing device makes and prepares: bearing extractor makes and make bearing drill drift pressing plate frock, prepares dismounting bearing instrument and Hydraulic Pump; Unload withdrawing device and take out bearing: after holding extraction, remove frock, be lifted into perch deposit with suspender belt fixed type bearing; It is characterized in that:
1), in bearing hole, dry ice is sprinkled into: first put into bearing hole with calico or the layering of woven bag parcel dry ice; Dry ice fills up bearing bore substantially, freezing about 60 minutes, then dry ice is in layer withdrawn from, and stays a small amount of in bearing bore, measures the gap width of bearing outside diameter and stern tube shaft hole internal diameter, dismantle when gap width reaches 0.05mm ~ 0.15mm to bearing with clearance gauge;
2), withdrawing device is installed: in stern tube shaft hole, the step of the second bearing drill drift pressing plate is installed to a mouth place in bearing, fixes position; With crane, leading screw is penetrated in stern tube shaft hole, through the center, hole of the second bearing drill drift pressing plate in stern tube shaft hole, fix with the second screw simultaneously, the leading screw chain block of stern pipe outside and suspender belt lifting; Use crane lifting clutch shaft bearing drill drift pressing plate again, clutch shaft bearing drill drift pressing plate is made to be arranged on leading screw, slowly move to stern pipe aft end face, clutch shaft bearing drill drift trigger squeeze processing plane and stern pipe aft end face are fitted, hydraulic top is enclosed within leading screw, and fix with the first screw, ensure that two end face bearing drill drift pressing plates fix relatively; Linked together by hydraulic strip between Hydraulic Pump and hydraulic top, to Hydraulic Pump pressurization, along with pressure increases, bearing is slowly extracted out, and period notices whether the stroke of hydraulic top meets the demands.
2. ship stern tubular shaft method for dismounting according to claim 1, it is characterized in that: described stern tube bearing withdrawing device structure, screw mandrel (1) is interspersed with in the bearing of ship stern pipe, screw mandrel one end is set with hydraulic top (3) by the first screw (2), hydraulic top contacts with the clutch shaft bearing drill drift pressing plate (4) being arranged on bearing side, and clutch shaft bearing drill drift pressing plate withstands on the side of bearing; The opposite side screw mandrel of bearing is provided with the second bearing drill drift pressing plate (5) by the second screw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410818545.3A CN104627346A (en) | 2014-12-25 | 2014-12-25 | Ship stern tube bearing dismounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410818545.3A CN104627346A (en) | 2014-12-25 | 2014-12-25 | Ship stern tube bearing dismounting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104627346A true CN104627346A (en) | 2015-05-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410818545.3A Pending CN104627346A (en) | 2014-12-25 | 2014-12-25 | Ship stern tube bearing dismounting method |
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| CN (1) | CN104627346A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414933A (en) * | 2015-12-09 | 2016-03-23 | 中船西江造船有限公司 | Rubber bearing installation device |
| CN108422381A (en) * | 2018-05-17 | 2018-08-21 | 国家电网公司 | Tool for uprooting and its application method suitable for embedded self lubrication bearing |
| WO2018214418A1 (en) * | 2017-05-24 | 2018-11-29 | 东台市海鹏船舶配件有限公司 | Ship stern tube bearing removal device |
| CN112756940A (en) * | 2021-02-28 | 2021-05-07 | 东台市海鹏船舶配件有限公司 | Stern pipe bearing dismounting device |
| CN114029647A (en) * | 2022-01-10 | 2022-02-11 | 宏华海洋油气装备（江苏）有限公司 | Intelligent automatic ship stern tube installation equipment |
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| JPS61275094A (en) * | 1985-05-30 | 1986-12-05 | Nippon Kokan Kk <Nkk> | Method of extracting stern bearing |
| CN201098785Y (en) * | 2007-11-13 | 2008-08-13 | 上海宝钢设备检修有限公司 | Interference fit dry ice cooling device for dismounting hollow shaft |
| CN201316888Y (en) * | 2008-12-22 | 2009-09-30 | 上海宝钢设备检修有限公司 | Cold-rolling shearer knife rest copper coat dismounting chest developer |
| CN101543952A (en) * | 2009-05-05 | 2009-09-30 | 沪东中华造船(集团)有限公司 | Device and method for mounting bearing bushing in interference fit with marine shafting |
| CN201720674U (en) * | 2010-07-19 | 2011-01-26 | 陈波 | Pressing sleeve device of stern tube bearing |
| CN202804604U (en) * | 2012-09-19 | 2013-03-20 | 鞍钢集团矿业公司 | Device for detaching copper bush of eccentric body of crusher |
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| CN203292809U (en) * | 2013-06-21 | 2013-11-20 | 南车戚墅堰机车有限公司 | Mounting and demounting tool for bearing of locomotive wheelset axle box |
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2014
- 2014-12-25 CN CN201410818545.3A patent/CN104627346A/en active Pending
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| JPS61275094A (en) * | 1985-05-30 | 1986-12-05 | Nippon Kokan Kk <Nkk> | Method of extracting stern bearing |
| CN201098785Y (en) * | 2007-11-13 | 2008-08-13 | 上海宝钢设备检修有限公司 | Interference fit dry ice cooling device for dismounting hollow shaft |
| CN201316888Y (en) * | 2008-12-22 | 2009-09-30 | 上海宝钢设备检修有限公司 | Cold-rolling shearer knife rest copper coat dismounting chest developer |
| CN101543952A (en) * | 2009-05-05 | 2009-09-30 | 沪东中华造船(集团)有限公司 | Device and method for mounting bearing bushing in interference fit with marine shafting |
| CN201720674U (en) * | 2010-07-19 | 2011-01-26 | 陈波 | Pressing sleeve device of stern tube bearing |
| CN202804577U (en) * | 2012-07-30 | 2013-03-20 | 武汉钢铁(集团)公司 | Bearing removal puller with fan-shaped barriers |
| CN202804604U (en) * | 2012-09-19 | 2013-03-20 | 鞍钢集团矿业公司 | Device for detaching copper bush of eccentric body of crusher |
| CN203292809U (en) * | 2013-06-21 | 2013-11-20 | 南车戚墅堰机车有限公司 | Mounting and demounting tool for bearing of locomotive wheelset axle box |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414933A (en) * | 2015-12-09 | 2016-03-23 | 中船西江造船有限公司 | Rubber bearing installation device |
| WO2018214418A1 (en) * | 2017-05-24 | 2018-11-29 | 东台市海鹏船舶配件有限公司 | Ship stern tube bearing removal device |
| CN108422381A (en) * | 2018-05-17 | 2018-08-21 | 国家电网公司 | Tool for uprooting and its application method suitable for embedded self lubrication bearing |
| CN112756940A (en) * | 2021-02-28 | 2021-05-07 | 东台市海鹏船舶配件有限公司 | Stern pipe bearing dismounting device |
| CN112756940B (en) * | 2021-02-28 | 2022-02-18 | 东台市海鹏船舶配件有限公司 | Stern pipe bearing dismounting device |
| CN114029647A (en) * | 2022-01-10 | 2022-02-11 | 宏华海洋油气装备（江苏）有限公司 | Intelligent automatic ship stern tube installation equipment |
| CN114029647B (en) * | 2022-01-10 | 2022-03-18 | 宏华海洋油气装备（江苏）有限公司 | Intelligent automatic ship stern tube installation equipment |
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Application publication date: 20150520 |
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| RJ01 | Rejection of invention patent application after publication |