CN107081443B - The processing method of stern tube upper bearing aperture - Google Patents
The processing method of stern tube upper bearing aperture Download PDFInfo
- Publication number
- CN107081443B CN107081443B CN201710488966.8A CN201710488966A CN107081443B CN 107081443 B CN107081443 B CN 107081443B CN 201710488966 A CN201710488966 A CN 201710488966A CN 107081443 B CN107081443 B CN 107081443B
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- China
- Prior art keywords
- stern tube
- measurement point
- front axle
- measurement
- hole
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/12—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for forming working surfaces of cylinders, of bearings, e.g. in heads of driving rods, or of other engine parts
Abstract
The invention discloses a kind of processing methods of stern tube upper bearing aperture.Stern tube has head end and tail end, there is front axle bearing bore and rear bearing hole on stern tube, front axle bearing bore is located at the head end of stern tube, rear bearing hole is located at the tail end of stern tube, the theoretical centerline of front axle bearing bore coincides with the theoretical centerline of rear bearing hole and the center line of stern tube, which includes step：Afterwards the right boring processing of bearing hole, the first boring of front axle bearing bore after processing is completed, the actual center line of bearing hole after measurement；On the basis of the actual center line of later bearing hole, after the theoretical centerline for correcting front axle bearing bore, right boring processing is carried out to front axle bearing bore.The processing method can efficiently reduce the deviation of the center line of rear bearing hole and the center line of front axle bearing bore the step of increasing the center line for correcting front axle bearing bore before to front axle bearing bore right boring.
Description
Technical field
The present invention relates to a kind of processing method of stern tube upper bearing aperture, more particularly on a kind of stern tube of large ship
The processing method of bearing hole.
Background technology
The stern tube aperture of 100000 tons or more large ships is larger, and stern tube is longer, more than 3.5 meters, as shown in Figure 1, boring
When hole in addition to by boring bar 10 other than the first support device 20 of both ends and the second support device 30 support, it is also necessary in centre position
Increase third support device 40, the revolution amount of deflection of boring bar when reducing bore hole.In ship standard, to the forward and backward bearing of stern tube
The requirement of centerline hole is very high, only allows to be less than 0.1 millimeter.In order to make the center line of stern tube axle bearing bore exist as far as possible
On straight line, common practice is to be set near the both ends support device of stern tube axle bearing bore and near intermediate supports
Measurement point is set, boring bar is mounted in stern tube, adjusts and fasten three support devices, boring bar is installed, boring is then come into effect
Hole, bearing hole after first boring stern tube, then boring front bearing of stern shaft tube hole extract boring bar out after bore hole, check stern tube axle
The deviation of bearing bore center line.It checks and finds after bore hole, the deviation of stern tube axle bearing bore center line would generally exceed permission
0.1 millimeter of range.
To which the processing method of the bearing hole on stern tube makes the center line of front axle bearing bore and rear bearing in the prior art
The deviation of the center line in hole is larger.
Invention content
The technical problem to be solved by the present invention is in order to overcome the processing side of the bearing hole on stern tube in the prior art
The defect that method makes the deviation of the center line of front axle bearing bore and the center line of rear bearing hole larger provides the axis on a kind of stern tube
The processing method of bearing bore.
The present invention is to solve above-mentioned technical problem by following technical proposals：
A kind of processing method of stern tube upper bearing aperture, the stern tube have head end and tail end, have on the stern tube
There are front axle bearing bore and rear bearing hole, and the front axle bearing bore is located at the head end of the stern tube, the rear bearing hole positioned at described
The theoretical centerline of the tail end of stern tube, the front axle bearing bore coincides with the theoretical centerline of the rear bearing hole and the stern tube shaft
The center line of pipe, feature are that the processing method of the stern tube upper bearing aperture includes the following steps：
S1, it is described after bearing hole right boring processing, the front axle bearing bore first boring after processing is completed, measure it is described after bearing
The actual center line in hole；
S2, after described on the basis of the actual center line of bearing hole, it is right after the theoretical centerline for correcting the front axle bearing bore
The front axle bearing bore carries out right boring processing.
In the technical scheme, the step for the theoretical centerline for correcting front axle bearing bore is increased before to front axle bearing bore right boring
Suddenly, the deviation of the center line of rear bearing hole and the center line of front axle bearing bore can be efficiently reduced.
Preferably, in step S1Before, the processing method of the stern tube upper bearing aperture further includes step：
S01, along the axial direction of the stern tube set gradually the first measurement point, the second measurement point, third measurement point and
Four measurement points, wherein the first measurement point position is in the theoretical center of bearing hole, the 4th measurement point position afterwards in the front axle
The theoretical center of bearing bore, second measurement point and third measurement point be respectively positioned in the stern tube remove the front axle bearing bore and
The region of bearing hole after described, first measurement point, second measurement point, the third measurement point and the described 4th measure
Point is located along the same line.
In the technical scheme, first measurement point, the second measurement point, third measurement point and the 4th measurement point are in theory
It is upper to increase measurement point compared with prior art positioned at same straight line, the accuracy of measurement can be improved, and then can be more
The deviation being effectively reduced between the center line of rear bearing hole and the center line of front axle bearing bore.
Preferably, the front axle bearing bore and the rear bearing all have head end and tail end, the front-axle hole is close to the stern
One end of the head end of central siphon is head end, and one end of the rear tail end of the bearing hole close to the stern tube is tail end；
Ranging from 30~50mm of second measurement point and the distance between the head end of the rear bearing hole, the third
Ranging from 30~50mm of measurement point and the distance between the tail end of the front axle bearing bore.
Preferably, the head end of the stern tube has with the first support device, tail end with the second support device, middle part
Third support device, in step S01Later, step S1Before, the processing method of the stern tube upper bearing aperture further includes step：
S02, boring bar is mounted in the stern tube, adjust simultaneously fixed first support device, second device and third
Support device, for making the third measurement point to the extended line of the line between first measurement point and the second measurement point
Distance is less than 0.02mm.
Preferably, step S1It include step：
S11, the extraction boring bar, the practical center of the rear bearing hole after right boring is processed is set as the first actual spot of measurement,
The practical center of front-axle hole after first boring is processed is set as just boring measurement point；
S12, on radial section where second measurement point by first actual spot of measurement in the stern tube
Projection is set as the second actual spot of measurement；
S13, by the straight line where first actual spot of measurement and second actual spot of measurement be set as it is described after bearing
The actual center line in hole.
Preferably, step S2It include step：
S21, will it is described after bearing hole the just boring measurement point of the actual center line in the stern tube where radial direction cut
Projection on face is set as the 4th actual spot of measurement；
S22, on radial section where the third measurement point by the 4th actual spot of measurement in the stern tube
Projection is set as third actual spot of measurement.
Preferably, step S2In further include step：
S23, boring bar is mounted in the stern tube, adjust simultaneously fixed first support device, second device and third
Support device, for making the 4th actual spot of measurement be less than 0.02mm to the distance of the actual center line of the rear axis hole.
Preferably, ranging from 0.8~1.6 μ of rear surface roughness is processed in axis hole and the front axle bearing bore right boring after described
m。
Preferably, the surplus after the front axle bearing bore just boring processing is 0.5mm.
On the basis of common knowledge of the art, above-mentioned each optimum condition can be combined arbitrarily to get each preferable reality of the present invention
Example.
The positive effect of the present invention is that：
The processing method of stern tube upper bearing aperture increases amendment fore bearing before to front axle bearing bore right boring in the present invention
The step of center line in hole, can efficiently reduce the deviation of the center line of rear bearing hole and the center line of front axle bearing bore.
Description of the drawings
Fig. 1 is the relative position schematic diagram of stern tube and boring bar, support device in the prior art.
Fig. 2 is a preferred embodiment of the present invention the flow chart of the processing method of stern tube upper bearing aperture.
Reference sign：
10：Boring bar
20：First support device
30：Second support device
40：Third support device
Specific implementation mode
A preferred embodiment is named, and completely illustrates the present invention in conjunction with attached drawing to become apparent from.
Stern tube has head end and tail end, has front axle bearing bore and rear bearing hole on stern tube, and front axle bearing bore is located at stern
The head end of central siphon, rear bearing hole are located at the tail end of stern tube, and the theoretical centerline of front axle bearing bore coincides with the theory of rear bearing hole
The center line of center line and stern tube, same as the prior art, the head end of stern tube is with the first support device, tail end with
Two support devices, middle part have third support device.
In the present embodiment, as shown in Fig. 2, the processing method of stern tube upper bearing aperture includes the following steps：
Step 100, the right boring processing of rear bearing hole, the first boring of front axle bearing bore after processing is completed, the reality of bearing hole after measurement
Border center line；
On the basis of step 200, the actual center line of later bearing hole, after the theoretical centerline for correcting front axle bearing bore, to preceding
Bearing hole carries out right boring processing.
In the present embodiment, the step for the theoretical centerline for correcting front axle bearing bore is increased before to front axle bearing bore right boring
Suddenly, the deviation of the center line of rear bearing hole and the center line of front axle bearing bore can be efficiently reduced.
In step 100, rear axis hole and front axle bearing bore right boring processing ranging from 0.8~1.6 μm of rear surface roughness, it is preceding
Surplus after bearing hole just boring processing is 0.5mm.Wherein, 0.5mm surpluses are used as the right boring processing of front axle bearing bore.
Wherein, before step 100, the processing method of stern tube upper bearing aperture further includes：
Step 10 sets gradually the first measurement point, the second measurement point, third measurement point and along the axial direction of stern tube
Four measurement points, wherein the first measurement point position is in the theoretical center of rear bearing hole, the 4th measurement point position in the theory of front axle bearing bore
The heart, the second measurement point and third measurement point are respectively positioned on the region that front axle bearing bore and rear bearing hole are removed in stern tube, and first measures
Point, second measurement point, third measurement point and the 4th measurement point are located along the same line.In fact, the first measurement point, second
Measurement point, third measurement point and the 4th measurement point only increase survey in the present embodiment positioned at same straight line in theory
Point is measured, the accuracy of measurement can be improved, and then the center line of bearing hole and front axle bearing bore after capable of more efficiently reducing
Deviation between center line.
Further, front axle bearing bore and rear bearing all have head end and tail end, front-axle hole close to stern tube head end one
End is head end, and rear bearing hole is tail end close to one end of the tail end of the stern tube；The head end of second measurement point and rear bearing hole
The distance between ranging from 30~50mm, the distance between tail end of third measurement point and front axle bearing bore ranging from 30~
50mm。
In the present embodiment, after step 10, before step 100, the processing method of stern tube upper bearing aperture is also wrapped
It includes
Step 20, boring bar is mounted on, in stern tube, adjusts and fix the first support device, device and third support dress
It sets, for making third measurement point be less than to the distance of the extended line of the line between the first measurement point and the second measurement point
0.02mm。
To which further, step 100 includes：
Step 101, boring bar is extracted out, the practical center of the rear bearing hole after right boring is processed is set as the first practical measurement
The practical center of point, the front-axle hole after first boring is processed is set as just boring measurement point；
Step 102, the projection on the radial section where the second measurement point by the first actual spot of measurement in stern tube is set
It is set to the second actual spot of measurement；
Step 103, the straight line where the first actual spot of measurement and the second actual spot of measurement is set to the reality of rear bearing hole
Border center line.
Further, step 200 includes：
Step 201, on the radial section where the first boring measurement point by the actual center line of rear bearing hole in stern tube
Projection is set as the 4th actual spot of measurement；
Step 202, the projection on the radial section where the third measurement point by the 4th actual spot of measurement in stern tube is set
It is set to third actual spot of measurement；
Step 203, boring bar is mounted in the stern tube, adjusts and fix the first support device, second device and the
Three support devices, for making the 4th actual spot of measurement be less than 0.02mm to the distance of the actual center line of rear axis hole.
The processing method increases the center for correcting front axle bearing bore before first boring processing and the right boring processing of front axle bearing bore
The step of line, can efficiently reduce the deviation of the center line of rear bearing hole and the center line of front axle bearing bore, use the present embodiment
In bearing hole the deviation of the center line of the center line of front axle bearing bore and rear bearing hole that processes of processing method in 0.08mm
Within, bore hole quality is improved, the running quality of shafting is improved, effectively improves the safety of operation of ship.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (5)
1. a kind of processing method of stern tube upper bearing aperture, the stern tube has head end and tail end, has on the stern tube
Front axle bearing bore and rear bearing hole, and the front axle bearing bore is located at the head end of the stern tube, the rear bearing hole is located at the stern
The theoretical centerline of the tail end of central siphon, the front axle bearing bore coincides with the theoretical centerline of the rear bearing hole and the stern tube
Center line, which is characterized in that the processing method of the stern tube upper bearing aperture includes the following steps：
S1, it is described after the right boring processing of bearing hole, the first boring of the front axle bearing bore after processing is completed, measure it is described after bearing hole
Actual center line；
S2, after described on the basis of the actual center line of bearing hole, after the theoretical centerline for correcting the front axle bearing bore, to described
Front axle bearing bore carries out right boring processing；
In step S1Before, the processing method of the stern tube upper bearing aperture further includes step：
S01, along the stern tube axial direction set gradually the first measurement point, the second measurement point, third measurement point and the 4th survey
Measure point, wherein the first measurement point position is in the theoretical center of bearing hole, the 4th measurement point position afterwards in the front axle bearing bore
Theoretical center, second measurement point and third measurement point, which are respectively positioned in the stern tube, removes the front axle bearing bore and described
The region of bearing hole afterwards, first measurement point, second measurement point, the third measurement point and the 4th measurement point position
In on same straight line；
The front axle bearing bore and it is described after bearing all have head end and tail end, head end of the front-axle hole close to the stern tube
One end is head end, and one end of the rear tail end of the bearing hole close to the stern tube is tail end；
Ranging from 30~50mm of second measurement point and the distance between the head end of the rear bearing hole, the third measure
Ranging from 30~50mm of point and the distance between the tail end of the front axle bearing bore；
The head end of the stern tube is supported with third and is filled with the second support device, middle part with the first support device, tail end
It sets, in step S01Later, step S1Before, the processing method of the stern tube upper bearing aperture further includes step：
S02, boring bar is mounted in the stern tube, adjust simultaneously fixed first support device, second device and third support
Device, for making the third measurement point to the distance of the extended line of the line between first measurement point and the second measurement point
Less than 0.02mm；
Step S1It include step：
S11, the extraction boring bar, the practical center of the rear bearing hole after right boring is processed is set as the first actual spot of measurement, will be first
The practical center of front-axle hole after boring processing is set as just boring measurement point；
S12, projection on radial section where second measurement point by first actual spot of measurement in the stern tube
It is set as the second actual spot of measurement；
S13, straight line where first actual spot of measurement and second actual spot of measurement is set as described after bearing hole
Actual center line.
2. the processing method of stern tube upper bearing aperture as described in claim 1, which is characterized in that step S2It include step：
S21, will it is described after bearing hole the just boring measurement point of the actual center line in the stern tube where radial section on
Projection be set as the 4th actual spot of measurement；
S22, projection on radial section where the third measurement point by the 4th actual spot of measurement in the stern tube
It is set as third actual spot of measurement.
3. the processing method of stern tube upper bearing aperture as claimed in claim 2, which is characterized in that step S2In further include step：
S23, boring bar is mounted in the stern tube, adjust simultaneously fixed first support device, second device and third support
Device, for making the 4th actual spot of measurement be less than 0.02mm to the distance of the actual center line of the rear axis hole.
4. the processing method of the stern tube upper bearing aperture as described in claim 1-3 any one, which is characterized in that the rear axle
Ranging from 0.8~1.6 μm of rear surface roughness is processed in hole and the front axle bearing bore right boring.
5. the processing method of the stern tube upper bearing aperture as described in claim 1-3 any one, which is characterized in that the front axle
Surplus after bearing bore just boring processing is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710488966.8A CN107081443B (en) | 2017-06-23 | 2017-06-23 | The processing method of stern tube upper bearing aperture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710488966.8A CN107081443B (en) | 2017-06-23 | 2017-06-23 | The processing method of stern tube upper bearing aperture |
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| Publication Number | Publication Date |
|---|---|
| CN107081443A CN107081443A (en) | 2017-08-22 |
| CN107081443B true CN107081443B (en) | 2018-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710488966.8A Active CN107081443B (en) | 2017-06-23 | 2017-06-23 | The processing method of stern tube upper bearing aperture |
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| CN (1) | CN107081443B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478140B (en) * | 2017-09-26 | 2020-01-10 | 上海东鼎钢结构有限公司 | Machining detection method for ensuring normal operation of stern shaft tube and bearing thereof |
| CN110193615A (en) * | 2019-07-02 | 2019-09-03 | 上海外高桥造船有限公司 | The method of marine stern axle tube bore hole |
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|---|---|---|---|---|
| US4652186A (en) * | 1984-11-15 | 1987-03-24 | Anatoly Sverdlin | Portable boring machine |
| US6857193B2 (en) * | 2000-10-04 | 2005-02-22 | Darryl H. Kallesen | Location projector apparatus and methods |
| CN1775434A (en) * | 2005-12-01 | 2006-05-24 | 渤海船舶重工有限责任公司 | Marine stern axle tube boring technological equipment erecting process |
| CN201008988Y (en) * | 2007-03-26 | 2008-01-23 | 渤海船舶重工有限责任公司 | Boring spindle intermediate support device of large-scale equipment boring field processing |
| CN201102083Y (en) * | 2007-09-07 | 2008-08-20 | 江南造船(集团)有限责任公司 | Boring machining fixture equipment |
| CN101618465A (en) * | 2009-07-10 | 2010-01-06 | 上海江南长兴造船有限责任公司 | Method for boring hole on screw shaft pipe subsection in supertanker construction |
| CN101913409A (en) * | 2010-08-06 | 2010-12-15 | 上海江南长兴造船有限责任公司 | Method for improving shaft system centering process for ship building |
| CN106624011A (en) * | 2016-12-26 | 2017-05-10 | 沪东中华造船(集团)有限公司 | Boring method for long stern tube ship shaft system |
-
2017
- 2017-06-23 CN CN201710488966.8A patent/CN107081443B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4652186A (en) * | 1984-11-15 | 1987-03-24 | Anatoly Sverdlin | Portable boring machine |
| US6857193B2 (en) * | 2000-10-04 | 2005-02-22 | Darryl H. Kallesen | Location projector apparatus and methods |
| CN1775434A (en) * | 2005-12-01 | 2006-05-24 | 渤海船舶重工有限责任公司 | Marine stern axle tube boring technological equipment erecting process |
| CN201008988Y (en) * | 2007-03-26 | 2008-01-23 | 渤海船舶重工有限责任公司 | Boring spindle intermediate support device of large-scale equipment boring field processing |
| CN201102083Y (en) * | 2007-09-07 | 2008-08-20 | 江南造船(集团)有限责任公司 | Boring machining fixture equipment |
| CN101618465A (en) * | 2009-07-10 | 2010-01-06 | 上海江南长兴造船有限责任公司 | Method for boring hole on screw shaft pipe subsection in supertanker construction |
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| CN106624011A (en) * | 2016-12-26 | 2017-05-10 | 沪东中华造船(集团)有限公司 | Boring method for long stern tube ship shaft system |
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Inventor after: Wu Zhenghui Inventor after: Xu Xuqing Inventor after: Mi Biao Inventor after: Zhou Jiong Inventor after: Fan De Inventor after: Tao Wenyong Inventor after: Wang Zhangjian Inventor after: Cao Nan Inventor before: Wu Zhenghui |
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