CN105269297A - Method for improving effective contact area between tail bearing and tail shaft, middle bearing assembly and scraping fitting tool - Google Patents
Method for improving effective contact area between tail bearing and tail shaft, middle bearing assembly and scraping fitting tool Download PDFInfo
- Publication number
- CN105269297A CN105269297A CN201510780830.5A CN201510780830A CN105269297A CN 105269297 A CN105269297 A CN 105269297A CN 201510780830 A CN201510780830 A CN 201510780830A CN 105269297 A CN105269297 A CN 105269297A
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- China
- Prior art keywords
- bearing
- intermediate bearing
- tail
- brush
- shaft
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- 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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
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- 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
Abstract
The invention discloses a method for improving the effective contact area between a tail bearing and a tail shaft, a middle bearing assembly and a scraping fitting tool. By means of the method, a middle bearing is accurately positioned, and coloring scraping fitting is carried out on the bottom of an inner diameter part of the tail bearing. The middle bearing assembly comprises a middle bearing body (1), a middle-bearing hollow dummy shaft (2), a middle-bearing adjusting cushion block (3) and a middle bearing base (4). The scraping fitting tool comprises operating handles (7-1), connecting base plates (7-2) and a scraping fitting face (7-3). By means of the method, the middle bearing assembly and the scraping fitting tool, the effective contact area between the tail bearing and the tail shaft is guaranteed, the tail shaft in the movement state and the tail bearing are in linear contact in the axial direction and at the same position of a circle, then a formed lubricating oil film is continuous and even, the accident that the bearing is burnt by high temperature due to the excessively-large unit area loads of the bearing is avoided, and it is guaranteed that ships safely and reliably navigate.
Description
Technical field
The present invention relates to shipbuilding field, a particularly accuracy control method for the tail bearing unit are load of ton, single-bearing, large blade, the slow-speed of revolution, environment protection oil lubrication boats and ships, specifically a kind of Wei of improvement Shaft holds method and intermediate bearing assembly, the brush frock of effective contact area with tailing axle.
Background technology
At present, the mode that ton stern journal bearing of ship many employings bore hole press-fits, owing to being horizontal bore hole, adds the precision problem of Boring machine itself, the axis hole after bore hole inevitably and theoretical axis produce deviation.Simultaneously, tail bearing press-fit good after, the impact that stress also can be processed and press-fit to the concentricity of internal diameter produces deviation.These two kinds of errors are superimposed, and effective contact area of tail bearing and tailing axle will be caused to reduce, and then, the load of tail bearing unit are is increased, if tail bearing adopts the environment protection oil of the low trade mark to lubricate, just easily produces the accident of high temperature and scaling loss.
For this reason, in shafting installation process, first utilize the concentric measuring instrument of laser accurately to locate intermediate bearing, guarantee that tailing axle contacts completely with tail bearing.Then, with tail bearing left and right oil groove for starting point, along bearing bore diameter circumferencial direction, brush is carried out to bottom tail bearing internal diameter by special frock and colouring, from breech face bottom tail bearing forward, make bearing bore diameter Lower Half brush uniform coloring, eliminate the internal diameter Concentricity tolerance that bearing bore diameter causes because processing, press-fiting the factors such as stress.Like this, just can guarantee that tail bearing and tailing axle are linear and contact, and then, improve bearing and contact by area with the effective of axle.Make the operation that tail bearing is safe and reliable.
Summary of the invention
For solving Problems existing in background technology, the invention provides method and intermediate bearing assembly, brush frock that a kind of Wei of improvement Shaft holds effective contact area with tailing axle.Technical scheme is:
A kind of Wei of improvement Shaft holds the method for effective contact area with tailing axle:
The first step, accurate location intermediate bearing: tail bearing press-fits well, the internal diameter of laser concentricity measuring instrument to tail bearing is utilized to check, and with actual measurement axis for intermediate bearing body is roughly put into position by benchmark, the hollow dummy shaft of intermediate bearing is socketed in intermediate bearing body, the hollow dummy shaft of described intermediate bearing is one section of screwed pipe that can be socketed in intermediate bearing body, for observing location; The concentricity of intermediate bearing hollow dummy shaft vertical and horizontal direction and actual axis is checked: by adjusting intermediate bearing four corner bolt, make the concentric deviation ≯ 0.05mm of the hollow dummy shaft of intermediate bearing and tail bearing practical center with laser concentricity measuring instrument; Press the theoretical value of centering of shafting calculated description again, intermediate bearing pedestal is installed intermediate bearing adjustment cushion block, the height of accurate adjustment intermediate bearing body, deviation ≯ 0.05mm; This step accurately locates the height and position of intermediate bearing, thus tailing axle is contacted completely with tail bearing.But tailing axle and tail bearing are still likely that point-like type contacts.
Second step, to brush painted bottom tail bearing internal diameter: clean tail bearing is inner; The outer surface of clean brush frock, described brush frock comprises operating grip, connecting base plate, brush face, and two operating grips are connected to the two ends in brush face by connecting plate; At the painted blue oil of brush face uniform application; Tail bearing inside will be put into by operating grip brush frock, the process put into, ensure that brush frock does not contact with tail bearing inner surface; With tail bearing left and right oil groove for starting point, the operating grip of hand steered brush frock, makes brush face roll back and forth along tail bearing inner surface circumferencial direction; According to tail bearing inner surface coloring case, stroke with flat scraper and scrape high point; Then repeating painted brush, until tail bearing internal diameter Lower Half, in the axial direction during uniform coloring, work completes from tail bearing breech face forward.This step carries out painted brush to the Lower Half of tail bearing internal diameter, thus, eliminate tail bearing internal diameter because of processing, press-fit stress and the Concentricity tolerance that produces, make that tailing axle and tail bearing are linear to be contacted, instead of point-like contacts.
Preferably, when installing intermediate bearing adjustment cushion block in the first step, intermediate bearing adjustment cushion block is fixed in spot welding, and carries out mark so that intermediate bearing accurately resets.
A kind of improvement Wei Shaft proposed for realizing the present invention holds the intermediate bearing assembly of the method for effective contact area with tailing axle, it comprises intermediate bearing body, the hollow dummy shaft of intermediate bearing, intermediate bearing adjustment cushion block, intermediate bearing pedestal, described intermediate bearing adjustment cushion block is arranged on intermediate bearing pedestal, intermediate bearing adjustment cushion block and intermediate bearing pedestal settle intermediate bearing body jointly, the hollow dummy shaft of intermediate bearing is one section of screwed pipe that can be socketed in intermediate bearing body, the hollow dummy shaft of intermediate bearing is socketed in intermediate bearing body locates for the installation of tail bearing.
Preferably, the hollow dummy shaft inside and outside circle of described intermediate bearing is concentric, deviation ≯ 0.05mm.
The improvement Wei Shaft proposed for realizing the present invention holds a brush frock for the method for effective contact area with tailing axle, and it comprises operating grip, connecting base plate, brush face, and two operating grips are connected to the two ends in brush face by connecting plate.
Preferably, the cylindricity deviation ≯ 0.02mm in brush face, surface roughness > 1.6 Δ.
Beneficial effect of the present invention
The present invention makes tail bearing effectively contact with tailing axle, guarantees that the load of tail bearing unit are is no more than design maximum permissible value, avoiding tail bearing, because using environment protection oil, the great engine-damaged accident of high temperature scaling loss occurs, guaranteeing navigation safety, for enterprise reduces economic loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of intermediate bearing assembly in the present invention.
Fig. 2 is the structural representation utilizing intermediate bearing assembly and laser concentricity measuring instrument accurately to locate intermediate bearing.
Fig. 3 is the structural representation of brush frock in the present invention.
Fig. 4 is the structural representation utilizing the painted brush tail bearing of brush frock.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, but protection scope of the present invention is not limited thereto:
Composition graphs 1-Fig. 4.Embodiment 1: a kind of Wei of improvement Shaft holds the method for effective contact area with tailing axle:
The first step, tail bearing (5) press-fits well, the internal diameter of laser concentricity measuring instrument (6) to tail bearing (5) is utilized to check, and with actual measurement axis for intermediate bearing body (1) is roughly put into position by benchmark, the socket hollow dummy shaft of intermediate bearing (2) in intermediate bearing body (1), the hollow dummy shaft of described intermediate bearing (2) is one section of screwed pipe that can be socketed in intermediate bearing body (1), for observing location; The concentricity of the hollow dummy shaft of intermediate bearing (2) vertical and horizontal direction and actual axis is checked: by adjusting intermediate bearing four corner bolt, make the hollow dummy shaft of intermediate bearing (2) deviation ≯ 0.05mm concentric on tail bearing (5) practical center with laser concentricity measuring instrument (6); Press the theoretical value of centering of shafting calculated description again, adjust cushion block (3), the height of accurate adjustment intermediate bearing body (1), deviation ≯ 0.05mm at the upper intermediate bearing of installing of intermediate bearing pedestal (4);
Accurately located the height and position of intermediate bearing by the first step, thus tailing axle is contacted completely with tail bearing.But tailing axle and tail bearing are still likely that point-like type contacts.
Second step, clean tail bearing (5) is inner; The outer surface of clean brush frock (7), described brush frock (7) comprises operating grip (7-1), connecting base plate (7-2), brush face (7-3), and two operating grips (7-1) are connected to the two ends of brush face (7-3) by connecting plate (7-2); At the painted blue oil of brush face (7-3) uniform application; Tail bearing (5) will be put into by operating grip (7-1) brush frock (7) inner, the process put into, ensure that brush frock (7) does not contact with tail bearing (5) inner surface; With tail bearing (5) left and right oil groove for starting point, the operating grip (7-1) of hand steered brush frock (7), makes brush face (7-3) roll back and forth along tail bearing (5) inner surface circumferencial direction; According to tail bearing (5) inner surface coloring case, stroke with flat scraper and scrape high point; Then repeating painted brush, until tail bearing (5) internal diameter Lower Half, in the axial direction during uniform coloring, work completes from tail bearing (5) breech face forward.
By second step, painted brush is carried out to the Lower Half of tail bearing internal diameter, thus, eliminate tail bearing internal diameter because of processing, press-fit stress and the Concentricity tolerance that produces, make that tailing axle and tail bearing are linear to be contacted, instead of point-like contacts.
Embodiment 2, the Wei of improvement Shaft as described in Example 1 holds the method for effective contact area with tailing axle, when installing intermediate bearing adjustment cushion block (3) in the first step, intermediate bearing adjustment cushion block (3) is fixed in spot welding, and carries out mark so that intermediate bearing accurately resets.
Embodiment 3: a kind of intermediate bearing assembly, it comprises intermediate bearing body (1), the hollow dummy shaft of intermediate bearing (2), intermediate bearing adjustment cushion block (3), intermediate bearing pedestal (4), described intermediate bearing adjustment cushion block (3) is arranged on intermediate bearing pedestal (4), intermediate bearing adjustment cushion block (3) and intermediate bearing pedestal (4) settle intermediate bearing body (1) jointly, the hollow dummy shaft of intermediate bearing (2) is one section of screwed pipe that can be socketed in intermediate bearing body (1), the hollow dummy shaft of intermediate bearing (2) is socketed in intermediate bearing body (1) and locates for the installation of tail bearing (5).
Embodiment 4: intermediate bearing assembly as described in Example 3, the hollow dummy shaft of described intermediate bearing (2) inside and outside circle is concentric, deviation ≯ 0.05mm.
Embodiment 5: a kind of brush frock, it comprises operating grip (7-1), connecting base plate (7-2), brush face (7-3), and two operating grips (7-1) are connected to the two ends of brush face (7-3) by connecting plate (7-2).
Embodiment 6: brush frock as described in Example 5, the cylindricity deviation ≯ 0.02mm of brush face (7-3), surface roughness > 1.6 Δ.
Accurate location intermediate bearing of the present invention and the method to brush painted bottom tail bearing internal diameter, ensure that tail bearing and the effective contact area of tailing axle, make tailing axle under motion state, in the axial direction, in circumference same position, tailing axle contacts with tail bearing is linear, and then make the lubricating oil film continuous uniform of formation, avoid the load of bearing unit are excessive, and cause the accident of bearing high temperature scaling loss, ensure that navigation safety is reliable.
Specific embodiment described herein is only illustrate spirit of the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (6)
1. improve the method that tail Shaft holds effective contact area with tailing axle, it is characterized in that:
The first step, tail bearing (5) press-fits well, the internal diameter of laser concentricity measuring instrument (6) to tail bearing (5) is utilized to check, and with actual measurement axis for intermediate bearing body (1) is roughly put into position by benchmark, the socket hollow dummy shaft of intermediate bearing (2) in intermediate bearing body (1), the hollow dummy shaft of described intermediate bearing (2) is one section of screwed pipe that can be socketed in intermediate bearing body (1), for observing location; The concentricity of the hollow dummy shaft of intermediate bearing (2) vertical and horizontal direction and actual axis is checked: by adjusting intermediate bearing four corner bolt, make the hollow dummy shaft of intermediate bearing (2) deviation ≯ 0.05mm concentric on tail bearing (5) practical center with laser concentricity measuring instrument (6); Press the theoretical value of centering of shafting calculated description again, adjust cushion block (3), the height of accurate adjustment intermediate bearing body (1), deviation ≯ 0.05mm at the upper intermediate bearing of installing of intermediate bearing pedestal (4);
Second step, clean tail bearing (5) is inner; The outer surface of clean brush frock (7), described brush frock (7) comprises operating grip (7-1), connecting base plate (7-2), brush face (7-3), and two operating grips (7-1) are connected to the two ends of brush face (7-3) by connecting plate (7-2); At the painted blue oil of brush face (7-3) uniform application; Tail bearing (5) will be put into by operating grip (7-1) brush frock (7) inner, the process put into, ensure that brush frock (7) does not contact with tail bearing (5) inner surface; With tail bearing (5) left and right oil groove for starting point, the operating grip (7-1) of hand steered brush frock (7), makes brush face (7-3) roll back and forth along tail bearing (5) inner surface circumferencial direction; According to tail bearing (5) inner surface coloring case, stroke with flat scraper and scrape high point; Then repeating painted brush, until tail bearing (5) internal diameter Lower Half, in the axial direction during uniform coloring, work completes from tail bearing (5) breech face forward.
2. the Wei of improvement Shaft according to claim 1 holds the method for effective contact area with tailing axle, when it is characterized in that intermediate bearing adjustment cushion block (3) is installed in the first step, intermediate bearing adjustment cushion block (3) is fixed in spot welding, and carries out mark so that intermediate bearing accurately resets.
3. one kind is improved for realizing the intermediate bearing assembly that tail Shaft holds the method for effective contact area with tailing axle described in claim 1, it is characterized in that it comprises intermediate bearing body (1), the hollow dummy shaft of intermediate bearing (2), intermediate bearing adjustment cushion block (3), intermediate bearing pedestal (4), described intermediate bearing adjustment cushion block (3) is arranged on intermediate bearing pedestal (4), intermediate bearing adjustment cushion block (3) and intermediate bearing pedestal (4) settle intermediate bearing body (1) jointly, the hollow dummy shaft of intermediate bearing (2) is one section of screwed pipe that can be socketed in intermediate bearing body (1), the hollow dummy shaft of intermediate bearing (2) is socketed in intermediate bearing body (1) and locates for the installation of tail bearing (5).
4. intermediate bearing assembly according to claim 3, is characterized in that the hollow dummy shaft of described intermediate bearing (2) inside and outside circle is concentric, deviation ≯ 0.05mm.
5. one kind is improved for realizing the brush frock that tail Shaft holds the method for effective contact area with tailing axle described in claim 1, it is characterized in that it comprises operating grip (7-1), connecting base plate (7-2), brush face (7-3), two operating grips (7-1) are connected to the two ends of brush face (7-3) by connecting plate (7-2).
6. brush frock according to claim 5, is characterized in that the cylindricity deviation ≯ 0.02mm in brush face (7-3), surface roughness > 1.6 Δ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510780830.5A CN105269297B (en) | 2015-11-14 | 2015-11-14 | Improvement Wei Shaft hold the method and intermediate bearing component, brush frock with the effective contact area of tailing axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510780830.5A CN105269297B (en) | 2015-11-14 | 2015-11-14 | Improvement Wei Shaft hold the method and intermediate bearing component, brush frock with the effective contact area of tailing axle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105269297A true CN105269297A (en) | 2016-01-27 |
| CN105269297B CN105269297B (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510780830.5A Active CN105269297B (en) | 2015-11-14 | 2015-11-14 | Improvement Wei Shaft hold the method and intermediate bearing component, brush frock with the effective contact area of tailing axle |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0166587A1 (en) * | 1984-06-23 | 1986-01-02 | Babcock-Hitachi Kabushiki Kaisha | Apparatus for handling a large nut |
| CN101947723A (en) * | 2010-07-30 | 2011-01-19 | 东方电气集团东方汽轮机有限公司 | Steam turbine blade fitting measuring tool and processing technology thereof |
| CN202138533U (en) * | 2011-05-25 | 2012-02-08 | 张潮宏 | Oiling head and tail sealing device for tailshaft of ship |
| CN205190526U (en) * | 2015-11-14 | 2016-04-27 | 中国长江航运集团南京金陵船厂 | Intermediate shaft bearing subassembly |
| CN205184180U (en) * | 2015-11-14 | 2016-04-27 | 中国长江航运集团南京金陵船厂 | Stroke allotment of labor's dress |
-
2015
- 2015-11-14 CN CN201510780830.5A patent/CN105269297B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0166587A1 (en) * | 1984-06-23 | 1986-01-02 | Babcock-Hitachi Kabushiki Kaisha | Apparatus for handling a large nut |
| CN101947723A (en) * | 2010-07-30 | 2011-01-19 | 东方电气集团东方汽轮机有限公司 | Steam turbine blade fitting measuring tool and processing technology thereof |
| CN202138533U (en) * | 2011-05-25 | 2012-02-08 | 张潮宏 | Oiling head and tail sealing device for tailshaft of ship |
| CN205190526U (en) * | 2015-11-14 | 2016-04-27 | 中国长江航运集团南京金陵船厂 | Intermediate shaft bearing subassembly |
| CN205184180U (en) * | 2015-11-14 | 2016-04-27 | 中国长江航运集团南京金陵船厂 | Stroke allotment of labor's dress |
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| Publication number | Publication date |
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| CN105269297B (en) | 2017-11-03 |
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Address after: 210015 Yanjiang Road, Drum Tower District, Nanjing, Jiangsu Province, No. 55 Patentee after: Nanjing Jinling shipyard Co., Ltd. Address before: 210015 Yanjiang Road, Drum Tower District, Nanjing, Jiangsu Province, No. 55 Patentee before: Nanjing Jinling Shipyard Factory, CSC |
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Address after: 210015, 55, Yan Jiang Road, Gulou District, Jiangsu, Nanjing Patentee after: China Merchants Jinling shipping (Nanjing) Co., Ltd Address before: 210015, 55, Yan Jiang Road, Gulou District, Jiangsu, Nanjing Patentee before: NANJING JINLING SHIPYARD Co.,Ltd. |
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