CN113953994A - Tail shaft positioning device and tail shaft accurate positioning method - Google Patents
Tail shaft positioning device and tail shaft accurate positioning method Download PDFInfo
- Publication number
- CN113953994A CN113953994A CN202111227750.9A CN202111227750A CN113953994A CN 113953994 A CN113953994 A CN 113953994A CN 202111227750 A CN202111227750 A CN 202111227750A CN 113953994 A CN113953994 A CN 113953994A
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- tail shaft
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- shaft
- tail
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000003825 pressing Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention provides a tail shaft positioning device and a tail shaft accurate positioning method, which comprise an outer caliper, an inner caliper and a positioning pin arranged at one end part of the inner caliper, wherein the outer caliper is provided with a sliding groove along the length direction, the inner caliper is embedded in the sliding groove in a sliding manner, the outer caliper is provided with a first positioning surface and a second positioning surface, and the first positioning surface and the second positioning surface are used for tightly attaching to a front shaft seal of a tail shaft; one end of the positioning pin is arranged on the inner caliper in a sliding mode, and the other end of the positioning pin is used for marking on the tail shaft; the outer caliper and the inner caliper are also provided with scales. The accurate positioning after the tail shaft is undocked can be realized through a special tool, the tool can be used as a spare part tool along with a ship, the subsequent maintenance and use are convenient, and the tool is used for positioning and installing the tail shaft after various ships are undocked. The positioning accuracy of the rear shaft after the rear shaft is undocked is improved, the reliability of the mounting data of the rear shaft seal and the protective cover of the rear shaft due to the change of the position of the rear shaft is prevented from being influenced, and the mounting accuracy and the universality of the mounting method are improved.
Description
Technical Field
The disclosure relates to the field of assembly type buildings, in particular to a tail shaft positioning device and a tail shaft accurate positioning method.
Background
After the ship is undocked, the tail shaft needs to be positioned back to the state before undocking so as to ensure the reliability of the installation data of the shaft seal, the protective cover and the fishing net knife behind the tail shaft. The traditional positioning method is that the distance from the flange end face of the tail shaft to the front gland end face of the tail pipe is measured and recorded through a pull ruler before undocking, and the tail shaft is measured again and positioned back to the original position after undocking.
According to the traditional positioning method, the pull rule is used for recording data, errors exist in different sizes of the pull rule, the measurement length is long, the reading measurement error of the pull rule is large, the positioning accuracy of the tail shaft is insufficient, equipment is arranged on the periphery of part of the ship-shaped tail shaft, the measurement is inconvenient, and the tail shaft is not beneficial to subsequent maintenance positioning. Meanwhile, two persons are needed to cooperate when the pull ruler is used for measurement, the pull ruler is influenced by the operation mode of measuring personnel, and the measurement error is large.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present disclosure provides a tail shaft positioning device and a tail shaft accurate positioning method.
According to one aspect of the disclosure, a tail shaft positioning device comprises an outer caliper, an inner caliper and a positioning pin arranged at one end of the inner caliper, wherein the outer caliper is provided with a sliding groove along the length direction, the inner caliper is embedded in the sliding groove in a sliding manner,
the outer caliper is provided with a first positioning surface and a second positioning surface, and the first positioning surface and the second positioning surface are used for clinging to a front shaft seal of the tail shaft;
one end of the positioning pin is arranged on the inner caliper in a sliding mode, and the other end of the positioning pin is used for marking on the tail shaft;
the outer caliper and the inner caliper are also provided with scales.
According to at least one embodiment of the present disclosure, one side of the outer caliper is provided with a first set screw abutting against the inner caliper.
According to at least one embodiment of the present disclosure, a positioning pressing plate for pressing the inner caliper is fixed outside the sliding groove of the outer caliper.
According to at least one embodiment of the present disclosure, the locating pin is movably disposed relative to the inner caliper.
According to at least one embodiment of this disclosure, the interior slide caliper has the through-hole with the locating pin adaptation, and the locating pin runs through the through-hole, and interior slide caliper is equipped with the second holding screw that supports to the locating pin.
According to at least one embodiment of the present disclosure, the intersection of the two positioning surfaces has a chamfer or a fillet.
According to another aspect of the disclosure, a method for accurately positioning a tail shaft after a ship is undocked, which adopts the tail shaft positioning device, comprises the following steps:
s1, before the ship is undocked, two positioning surfaces of an external caliper are respectively attached to a flange surface of a tail shaft front shaft seal and an outer circular surface of the tail shaft front shaft seal;
s2, the positioning pin is positioned outside the front shaft seal of the tail shaft, so that the tip of the positioning pin is in contact with the tail shaft, marks are made at the position corresponding to the tip on the tail shaft, reading and recording are carried out through scales on the outer caliper and the inner caliper, and the tail shaft positioning device is taken down;
and S3, after the ship is undocked, supporting the tail shaft positioning device to the flange surface of the front shaft seal of the tail shaft according to the mode S1, adjusting the tail shaft positioning device according to the recorded reading, and then adjusting the tail shaft to enable the mark on the tail shaft to be over against the tip of the positioning pin, so that the tail shaft is adjusted to return to the final position before undocking.
According to at least one embodiment of the present disclosure, in the marking in the step S2, a marking is first made at the tip of the positioning pin corresponding to the tail shaft by using a scriber, then the tail shaft positioning device is removed, and a coin is used to mark the marking.
The special tool can realize the accurate positioning of the tail shaft after the tail shaft is undocked, can be used as a spare part tool along with a ship, is convenient for subsequent maintenance and use, and is used for positioning and mounting the tail shaft after the various ships are undocked. The positioning accuracy of the rear shaft after the rear shaft is undocked is improved, the reliability of the mounting data of the rear shaft seal and the protective cover of the rear shaft due to the change of the position of the rear shaft is prevented from being influenced, and the mounting accuracy and the universality of the mounting method are improved. The application range is wide, and the operation is convenient only by operating at the front shaft seal position. The installation accuracy of the rear shaft seal and the protective cover of the tail shaft can be improved, and the tail shaft can be conveniently maintained and positioned for inspection in the future. The tail shaft positioning tool is low in manufacturing cost, simple to use, not prone to damage, has market value as a special tail shaft positioning tool, and can be produced in batches.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural view of a tail shaft positioning device according to an embodiment of the present disclosure.
FIG. 2 is a cross-sectional view A-A of the tail shaft positioning device of FIG. 1.
Fig. 3 is a side view of an outer caliper of the tail shaft positioning device of fig. 1.
FIG. 4 is a top view of the inner caliper of the tailshaft positioning apparatus of FIG. 1.
FIG. 5 is a schematic view of the tail shaft positioning device in use.
Reference numerals: 1-an outer caliper, 2-an inner caliper, 3-a positioning pressure plate, 4-a first set screw, 5-a bolt, 6-a positioning pin, 7-a first positioning surface, 8-a tail shaft front shaft seal and 9-a tail shaft; 10-a second set screw; 11-second positioning surface.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
According to a first embodiment of the present disclosure, as shown in fig. 1 to 5, there is provided a tail shaft positioning device, comprising an outer caliper 1, an inner caliper 2 and a positioning pin 6 arranged at one end of the inner caliper 2, wherein the outer caliper 1 has a sliding groove along a length direction, the inner caliper 2 is slidably embedded in the sliding groove,
the outer caliper 1 is provided with a first positioning surface and a second positioning surface, and the first positioning surface and the second positioning surface are used for clinging to a front shaft seal 8 of a tail shaft 9;
one end of a positioning pin 6 is slidably arranged on the inner caliper 2, and the other end of the positioning pin is used for marking on the tail shaft;
the outer caliper 1 and the inner caliper 2 also have scales.
The positioning pin 6 is used for assisting in marking, the scales on the surfaces of the outer caliper 1 and the inner caliper 2 are used for subsequent data recording, and the tail shaft 9 is accurately positioned by a new positioning method.
The external caliper rule 1 has the spout, spout and 2 looks adaptations of internal caliper rule, and internal caliper rule 2 slides through the spout and sets up in external caliper rule 1, and one side of external caliper rule 1 is equipped with the first holding screw 4 that supports to internal caliper rule 2, realizes sliding through the spout cooperation mode, and processing is convenient to guarantee that the activity that can be fine is smooth and easy, and the adjustment is maintained conveniently, and the both sides outside the spout are also convenient for set up the scale.
The spout external fixation of slide caliper 1 has the positioning pressure plate 3 that compresses tightly interior slide caliper 2, specifically can adopt 5 installation positioning pressure plates 3 of bolt, easy dismounting, and the quantity of positioning pressure plate 3 can be done according to the size of quantity and set up the adjustment.
The positioning pin 6 can be movably arranged relative to the inner caliper 2, so that the positioning pin 6 can correspond to different shaft seals relative to the length of the outer extension of the inner caliper, and the compatibility of the tool is improved. Can be including slide caliper rule 2 set up with the through-hole of 6 adaptations of locating pin, locating pin 6 runs through the through-hole to slide caliper rule 2 is equipped with the holding screw 4 that supports to locating pin 6, unclamps holding screw 4 alright with locating pin 6 along the through-hole regulation wantonly, can lock holding screw 4 after adjusting to target in place, accomplishes the installation of locating pin 6 and fixes. The length of the device and the height of the positioning pin 6 are adjustable, and the device can be applied to different ship types and different shaft seal sizes.
The intersection of the two positioning surfaces 7 is an inclined surface so as to avoid the chamfer of the flange surface and the outer circular surface of the tail shaft front shaft seal 8 and ensure that the two positioning surfaces 7 can be tightly attached to the shaft seal when in use.
The working principle of the device is as follows: after the ship rear shaft seal is installed in place (namely the tail shaft is positioned), the device is adjusted as shown in fig. 5, the inner caliper 2 is adjusted to enable the positioning pin 6 to protrude out of the front end of the front shaft seal, the positioning pin 6 is adjusted to enable the tip end of the positioning pin to just contact with the tail shaft 9, and the size of the device is fixed by locking the set screw 4. Marking is done at the tip of the positioning pin 6 by using a stylus and then the device is removed, coin dots are marked at the marks by using coin, and reading and recording are performed through the scale marks on the inner and outer calipers 1. The device is readjusted according to the data recorded before undocking after the ship undocking, the distance of the tail shaft is adjusted to enable the mark coin point on the tail shaft 9 to be right aligned with the tip of the positioning pin 6, and therefore the tail shaft 9 is adjusted back to the final position before undocking. The subsequent ship-handing treatment of the tool is convenient for subsequent maintenance.
According to another embodiment of the disclosure, there is provided a method for accurately positioning a tail shaft after a ship is undocked, which uses the tail shaft positioning device as described in any one of the above items, including the following steps:
s1, before the ship is undocked, two positioning surfaces 7 of an external caliper 1 are respectively attached to a flange surface of a tail shaft front shaft seal 8 and an outer circular surface of the tail shaft front shaft seal 8;
s2, the positioning pin 6 is positioned outside the tail shaft front shaft seal 8, the tip of the positioning pin 6 is in contact with the tail shaft 9, a mark is made at the position corresponding to the tip on the tail shaft 9, reading and recording are carried out through scales on the outer caliper 1 and the inner caliper 2, and the tail shaft positioning device is taken down;
s3, after the ship is undocked, the tail shaft positioning device is abutted to the flange face of the tail shaft front shaft seal 8 in the mode of S1, the tail shaft positioning device is adjusted according to the recorded reading, then the tail shaft 9 is adjusted, the mark on the tail shaft 9 is enabled to be over against the tip of the positioning pin 6, and the tail shaft 9 is adjusted to return to the final position before undocking.
According to at least one embodiment of the present disclosure, in the marking in step S2, a marking is first made at the tip of the tail shaft 9 corresponding to the positioning pin 6 by using a scriber, then the tail shaft positioning device is removed, and a coin is marked at the marking by using a coin.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (8)
1. A tail shaft positioning device is characterized by comprising an outer caliper, an inner caliper and a positioning pin arranged at one end of the inner caliper, wherein the outer caliper is provided with a sliding groove along the length direction, the inner caliper is embedded in the sliding groove in a sliding manner,
the outer caliper is provided with a first positioning surface and a second positioning surface, and the first positioning surface and the second positioning surface are used for clinging to a front shaft seal of the tail shaft;
one end of the positioning pin is arranged on the inner caliper in a sliding mode, and the other end of the positioning pin is used for marking on the tail shaft;
the outer caliper and the inner caliper are also provided with scales.
2. The tail shaft positioning device of claim 1, wherein one side of the outer caliper is provided with a first set screw that abuts the inner caliper.
3. The tail shaft positioning device according to claim 1, wherein at least one positioning pressing plate for pressing the inner caliper is fixed outside the sliding groove of the outer caliper.
4. The tailshaft positioning apparatus as defined in claim 1, wherein the locating pin is movably disposed relative to the inner caliper.
5. The tail shaft positioning device according to claim 4, wherein the inner caliper has a through hole adapted to the positioning pin, the positioning pin extends through the through hole, and the inner caliper is provided with a second set screw abutting against the positioning pin.
6. The tailshaft positioning apparatus as set forth in claim 1, wherein an intersection of the two positioning surfaces has a chamfer or fillet.
7. A method for accurately positioning a tail shaft after a ship is undocked, which is characterized in that the tail shaft positioning device of any one of claims 1-6 is adopted, and comprises the following steps:
s1, before the ship is undocked, two positioning surfaces of an external caliper are respectively attached to a flange surface of a tail shaft front shaft seal and an outer circular surface of the tail shaft front shaft seal;
s2, the positioning pin is positioned outside the front shaft seal of the tail shaft, so that the tip of the positioning pin is in contact with the tail shaft, marks are made at the position corresponding to the tip on the tail shaft, reading and recording are carried out through scales on the outer caliper and the inner caliper, and the tail shaft positioning device is taken down;
and S3, after the ship is undocked, supporting the tail shaft positioning device to the flange surface of the front shaft seal of the tail shaft according to the mode S1, adjusting the tail shaft positioning device according to the recorded reading, and then adjusting the tail shaft to enable the mark on the tail shaft to be over against the tip of the positioning pin, so that the tail shaft is adjusted to return to the final position before undocking.
8. The method for precisely positioning the tail shaft of the ship after undocking according to claim 7, wherein in the step of marking in step S2, a marking is made at the tip of the tail shaft corresponding to the positioning pin by using a marking pin, and then the tail shaft positioning device is removed, and coin points are marked at the marking by using a marking pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111227750.9A CN113953994B (en) | 2021-10-21 | 2021-10-21 | Tail shaft accurate positioning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111227750.9A CN113953994B (en) | 2021-10-21 | 2021-10-21 | Tail shaft accurate positioning method |
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| Publication Number | Publication Date |
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| CN113953994A true CN113953994A (en) | 2022-01-21 |
| CN113953994B CN113953994B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111227750.9A Active CN113953994B (en) | 2021-10-21 | 2021-10-21 | Tail shaft accurate positioning method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4291465A (en) * | 1980-02-07 | 1981-09-29 | Hemeyer Arley C | Caliper rule device having extended measurement range |
| JP3111461U (en) * | 2005-03-17 | 2005-07-28 | 勇 白熊 | Baseboard installation line drawing tool |
| CN201525020U (en) * | 2009-10-22 | 2010-07-14 | 浙江工业职业技术学院 | Multipurpose vernier marking ruler |
| CN202123510U (en) * | 2011-06-27 | 2012-01-25 | 韩皓先 | High-precision vernier marking scale |
| CN205674193U (en) * | 2016-06-14 | 2016-11-09 | 福建福宁船舶重工有限公司 | A kind of ship side line positioner |
| CN206140475U (en) * | 2016-08-31 | 2017-05-03 | 青岛罗美威奥新材料制造有限公司 | Ruling tool |
| CN107932468A (en) * | 2017-11-29 | 2018-04-20 | 中国航空工业集团公司济南特种结构研究所 | A kind of Quick scribing device of plane class part |
| CN110617755A (en) * | 2019-10-08 | 2019-12-27 | 江西洪都航空工业集团有限责任公司 | Tool and method for simultaneously measuring gap and step |
| WO2020233375A1 (en) * | 2019-05-21 | 2020-11-26 | 金华市精工工具制造有限公司 | Internal-dimension vernier caliper |
-
2021
- 2021-10-21 CN CN202111227750.9A patent/CN113953994B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4291465A (en) * | 1980-02-07 | 1981-09-29 | Hemeyer Arley C | Caliper rule device having extended measurement range |
| JP3111461U (en) * | 2005-03-17 | 2005-07-28 | 勇 白熊 | Baseboard installation line drawing tool |
| CN201525020U (en) * | 2009-10-22 | 2010-07-14 | 浙江工业职业技术学院 | Multipurpose vernier marking ruler |
| CN202123510U (en) * | 2011-06-27 | 2012-01-25 | 韩皓先 | High-precision vernier marking scale |
| CN205674193U (en) * | 2016-06-14 | 2016-11-09 | 福建福宁船舶重工有限公司 | A kind of ship side line positioner |
| CN206140475U (en) * | 2016-08-31 | 2017-05-03 | 青岛罗美威奥新材料制造有限公司 | Ruling tool |
| CN107932468A (en) * | 2017-11-29 | 2018-04-20 | 中国航空工业集团公司济南特种结构研究所 | A kind of Quick scribing device of plane class part |
| WO2020233375A1 (en) * | 2019-05-21 | 2020-11-26 | 金华市精工工具制造有限公司 | Internal-dimension vernier caliper |
| CN110617755A (en) * | 2019-10-08 | 2019-12-27 | 江西洪都航空工业集团有限责任公司 | Tool and method for simultaneously measuring gap and step |
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| CN113953994B (en) | 2024-02-23 |
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