CN112027026A - Drilling method for bolt hole in bottom stud of marine main engine - Google Patents
Drilling method for bolt hole in bottom stud of marine main engine Download PDFInfo
- Publication number
- CN112027026A CN112027026A CN202010698283.7A CN202010698283A CN112027026A CN 112027026 A CN112027026 A CN 112027026A CN 202010698283 A CN202010698283 A CN 202010698283A CN 112027026 A CN112027026 A CN 112027026A
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- electromagnet
- drilling
- rod
- bolt hole
- mounting
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- 238000005553 drilling Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/60—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by the use of specific tools or equipment; characterised by automation, e.g. use of robots
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/49—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods by means of threaded members, e.g. screws, threaded bolts or nuts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Robotics (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a drilling method for bolt holes in bottom feet of a marine main engine, which comprises the following steps: determining the fixed positions of a first electromagnet and a second electromagnet according to the spatial arrangement condition around the drilling position of a footing bolt hole of a host, fixing the first electromagnet on a base of the host, and fixing the second electromagnet on a side wall or an iron frame; step two, mounting a support rod, a support plate and a pressure rod assembly; aligning the drill bit of the pneumatic drill to the drilling position of the bolt hole of the bottom foot of the host machine, starting the pneumatic drill, and rotating the handle on the pressure lever to drill; and step four, after drilling is finished, powering off the first electromagnet and the second electromagnet, moving the pressing rod to the next drilling position, and repeating the step one to the step three. The special pressure lever has the advantages of simple structure, easy processing and manufacturing and low construction cost, the special pressure lever can flexibly adjust the relative positions of the drilling point and the fixed point of the pressure lever, can be suitable for drilling the bottom pin bolt hole under complex conditions, has universality in use and can be recycled infinitely.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a drilling method for bolt holes in a bottom stud of a ship main engine.
Background
At present, after a main engine is positioned, a bottom stud bolt hole of the main engine is drilled by ships under construction, and the adopted methods generally comprise two methods: 1. the pneumatic drill is used for drilling, the position of the pneumatic drill is fixed by one person, the pneumatic drill is pressed down by one person operating a wooden board, the operation mode is flexible, the size of the pneumatic drill body is small, the requirement on the space around the bolt hole of the bottom foot is low, and due to the fact that the pneumatic drill is basically operated manually, the pneumatic drill is easy to deflect during drilling, the accuracy is low, and the drilling quality is poor. 2. The method uses the special iron absorption drill, is convenient to operate and can be operated by a single person, but the motor and the magnet part have large sizes, and the iron absorption drill needs to be installed and fixed by a large flat surface around a bolt hole of the bottom foot.
The current compact design trend is more and more obvious, and shipbuilding precision requirement is also more and more high, and the drilling method of the two host machine footing bolt holes can not meet the building construction requirement of ships.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a drilling method for a bolt hole of a ship main engine footing, which can effectively solve the problems that the space around the bolt hole of the ship main engine footing is narrow and no enough mounting plane is available for drilling holes by using an iron-absorbing drill; meanwhile, the problems of complex operation and inaccurate drilling when the air drill is used for drilling are avoided.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a drilling method for bolt holes in bottom feet of a marine main engine, which adopts a special drilling device, wherein the drilling device comprises the following steps: the support rod is vertically installed with the support plate, a threaded hole is formed in the support plate, the pressure rod is a screw rod, external threads of the pressure rod are matched with internal threads of the threaded hole, one end of the pressure rod penetrates through the threaded hole and is connected with the top of the pneumatic drill, a handle is arranged at the other end of the pressure rod, a first electromagnet and a second electromagnet are connected to the bottom end of the support rod, the first electromagnet is perpendicular to a magnet adsorption surface of the second electromagnet, the first electromagnet is adsorbed on a main machine base, and the second electromagnet is adsorbed on a side wall or a fixed iron frame;
the method comprises the following steps:
determining the fixed positions of a first electromagnet and a second electromagnet according to the spatial arrangement condition around the drilling position of a footing bolt hole of a host, fixing the first electromagnet on a base of the host, and fixing the second electromagnet on a side wall or an iron frame;
step two, mounting the support rod, the support plate and the pressure rod assembly, and firmly fixing;
aligning the drill bit of the pneumatic drill to the drilling position of the bolt hole of the bottom foot of the host machine, starting the pneumatic drill, and rotating the handle on the pressure lever to drill;
and step four, after drilling is completed, powering off the first electromagnet and the second electromagnet, moving the pressing rod to the drilling position of the next host machine bottom foot bolt hole, and repeating the step one to the step three.
As a preferred technical scheme, the support rod is provided with a guide rod, the guide rod is fixed at any position on the support rod through a fixing mechanism, and the guide rod is provided with a guide hole for the compression rod to pass through.
According to the preferable technical scheme, the fixing mechanism comprises a mounting sleeve and an adjusting bolt, the mounting sleeve is sleeved outside the supporting rod, a screw hole is formed in the side wall of the mounting sleeve, and the adjusting bolt is installed in the screw hole.
As a preferable technical scheme, a reinforcing plate is arranged at the joint of the supporting rod and the supporting plate.
As a preferred technical scheme, the top of the pneumatic drill is provided with an installation groove, and the pressure lever is placed in the installation groove.
As preferred technical scheme, first mounting panel is connected to first electro-magnet, the second mounting panel is connected to the second electro-magnet, first mounting panel with all be provided with the mounting hole on the second mounting panel, the fixed plate is connected to the bottom of bracing piece, be provided with the mounting hole on the fixed plate, first mounting panel the second mounting panel the fixed plate is fixed through taking the tongue bolt, it sets up to at least three to take the tongue bolt.
As the preferred technical scheme, the supporting rod and the guide rod are both made of seamless steel tubes.
The working principle of the invention is that a special pressure lever is used, and the pressure lever can adjust the relative position of a drilling point and a pressure lever fixing point, so that the pneumatic drill can be flexibly fixed, and the requirement on the space around a footing bolt hole is low. When drilling, the handle on the rotary pressure rod is used for pressing the pneumatic drill downwards, the downward pressure is uniform and stable, the pneumatic drill is held by one hand of a single person, and the handle can be rotated by the other hand.
Compared with the prior art, the invention has the beneficial effects that:
(1) the special pressure lever has the advantages of simple structure, easy processing and manufacturing and low construction cost, the special pressure lever can flexibly adjust the relative positions of the drilling point and the fixed point of the pressure lever, can be suitable for drilling of footing bolt holes under various complex conditions, has universality and can be recycled infinitely.
(2) The method for drilling the bolt hole in the bottom foot of the main engine has the advantages of simple and convenient operation process, low cost, accuracy and reliability, and can not damage any accessory when in use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the drilling device for bolt holes in the bottom of a marine main engine.
Wherein the reference numerals are specified as follows: the main machine comprises a main machine base 1, a first electromagnet 2, a second electromagnet 3, a first mounting plate 4, a second mounting plate 5, a fixing plate 6, a bolt with a tongue 7, a supporting rod 8, a supporting plate 9, a pressing rod 10, a reinforcing plate 11, a handle 12, a guide rod 13 and a pneumatic drill 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the embodiment provides a drilling device for a bolt hole in a bottom foot of a marine main engine, which includes a support rod 8, a support plate 9, a pressure rod 10 and a pneumatic drill 14, wherein the support rod 8 and the support plate 9 are vertically installed, and a reinforcing plate 11 is arranged at a joint of the support rod 8 and the support plate 9. Be provided with the screw hole in the backup pad 9, depression bar 10 adopts the screw rod, and the external screw thread of depression bar 10 and the internal thread phase-match of screw hole, the top that the screw hole just connected pneumatic drill 14 is passed to the one end of depression bar 10, and the top of pneumatic drill 14 is provided with the mounting groove, the placing in the mounting groove of depression bar 10. The other end of the pressure lever 10 is provided with a handle 12. The support rod 8 is provided with a guide rod 13, the guide rod 13 is fixed at any position on the support rod 8 through a fixing mechanism, and the guide rod 13 is provided with a guide hole for the compression rod 10 to pass through. The fixing mechanism comprises a mounting sleeve 15 and an adjusting bolt 16, the mounting sleeve 15 is sleeved outside the supporting rod 8, a screw hole is formed in the side wall of the mounting sleeve 15, and the adjusting bolt 16 is mounted in the screw hole. The supporting rod 8 and the guide rod 13 are both made of seamless steel tubes.
The bottom of bracing piece 8 is connected with first electro-magnet 2 and second electro-magnet 3, and first electro-magnet 2 is perpendicular with the magnet adsorption face of second electro-magnet 3, and first electro-magnet 2 adsorbs on host computer base 1, and second electro-magnet 3 adsorbs on lateral wall or fixed iron stand. First electro-magnet 2 is connected first mounting panel 4, and second electro-magnet 3 is connected second mounting panel 5, all is provided with the mounting hole on first mounting panel 4 and the second mounting panel 5, and fixed plate 6 is connected to the bottom of bracing piece 8, is provided with the mounting hole on the fixed plate 6, and first mounting panel 4, second mounting panel 5, fixed plate 6 are fixed through taking tongue bolt 7, take tongue bolt 7 to set up to at least three.
The using method of the embodiment comprises the following steps:
the method comprises the following steps that firstly, according to the spatial arrangement condition around the drilling position of a footing bolt hole of a host machine, the fixing positions of a first electromagnet 2 and a second electromagnet 3 are determined, the first electromagnet 2 is fixed on a host machine base 1, and the second electromagnet 3 is fixed on a side wall or an iron frame;
step two, mounting the support rod 8, the support plate 9 and the press rod 10 assembly, and firmly fixing;
step three, aligning the drill bit of the pneumatic drill 14 to the drilling position of the bolt hole of the footing of the host machine, starting the pneumatic drill 14, and rotating the handle 12 on the compression bar 10 to drill;
and step four, after drilling is finished, powering off the first electromagnet 2 and the second electromagnet 3, moving the pressure lever 10 to the drilling position of the next host machine footing bolt hole, and repeating the step one to the step three.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (7)
1. A drilling method for bolt holes in marine main engine feet adopts a special drilling device, and the drilling device comprises the following steps: the support rod is vertically installed with the support plate, a threaded hole is formed in the support plate, the pressure rod is a screw rod, external threads of the pressure rod are matched with internal threads of the threaded hole, one end of the pressure rod penetrates through the threaded hole and is connected with the top of the pneumatic drill, a handle is arranged at the other end of the pressure rod, a first electromagnet and a second electromagnet are connected to the bottom end of the support rod, the first electromagnet is perpendicular to a magnet adsorption surface of the second electromagnet, the first electromagnet is adsorbed on a main machine base, and the second electromagnet is adsorbed on a side wall or a fixed iron frame;
the method is characterized by comprising the following steps:
determining the fixed positions of a first electromagnet and a second electromagnet according to the spatial arrangement condition around the drilling position of a footing bolt hole of a host, fixing the first electromagnet on a base of the host, and fixing the second electromagnet on a side wall or an iron frame;
step two, mounting the support rod, the support plate and the pressure rod assembly, and firmly fixing;
aligning the drill bit of the pneumatic drill to the drilling position of the bolt hole of the bottom foot of the host machine, starting the pneumatic drill, and rotating the handle on the pressure lever to drill;
and step four, after drilling is completed, powering off the first electromagnet and the second electromagnet, moving the pressing rod to the drilling position of the next host machine bottom foot bolt hole, and repeating the step one to the step three.
2. The method for drilling the bolt hole in the bottom foot of the marine main engine according to claim 1, wherein a guide rod is arranged on the support rod, the guide rod is fixed at any position on the support rod through a fixing mechanism, and a guide hole for the compression rod to pass through is formed in the guide rod.
3. The method for drilling the bolt hole in the bottom foot of the marine main engine according to claim 2, wherein the fixing mechanism comprises a mounting sleeve and an adjusting bolt, the mounting sleeve is sleeved outside the support rod, a screw hole is formed in a side wall of the mounting sleeve, and the adjusting bolt is mounted in the screw hole.
4. The method for drilling the bolt hole in the bottom foot of the ship body as claimed in claim 1, wherein a reinforcing plate is arranged at the joint of the supporting rod and the supporting plate.
5. The method for drilling the bolt hole in the bottom foot of the ship body according to claim 1, wherein a mounting groove is formed in the top of the pneumatic drill, and the pressure rod is placed in the mounting groove.
6. The method for drilling the bolt hole in the bottom foot of the ship body according to claim 1, wherein the first electromagnet is connected with a first mounting plate, the second electromagnet is connected with a second mounting plate, mounting holes are formed in the first mounting plate and the second mounting plate, the bottom end of the supporting rod is connected with a fixing plate, mounting holes are formed in the fixing plate, the first mounting plate, the second mounting plate and the fixing plate are fixed through tongue-shaped bolts, and the number of the tongue-shaped bolts is at least three.
7. The method for drilling the bolt hole in the bottom foot of the ship body according to claim 2, wherein the support rod and the guide rod are both made of seamless steel tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010698283.7A CN112027026A (en) | 2020-07-20 | 2020-07-20 | Drilling method for bolt hole in bottom stud of marine main engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010698283.7A CN112027026A (en) | 2020-07-20 | 2020-07-20 | Drilling method for bolt hole in bottom stud of marine main engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112027026A true CN112027026A (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010698283.7A Pending CN112027026A (en) | 2020-07-20 | 2020-07-20 | Drilling method for bolt hole in bottom stud of marine main engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112027026A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115771597A (en) * | 2022-11-25 | 2023-03-10 | 沪东中华造船(集团)有限公司 | Adjusting method and adjusting tool for perpendicularity between foundation bolt hole of equipment and plane of rack |
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|---|---|---|---|---|
| US5224682A (en) * | 1991-08-29 | 1993-07-06 | Baughman James A | Drill holding mechanism |
| CN2194231Y (en) * | 1993-05-22 | 1995-04-12 | 商贵宝 | Electromagnetic base frame driller for hole |
| CN2314879Y (en) * | 1997-12-26 | 1999-04-21 | 扬州电动工具厂 | Magnetic base drill |
| CN103008728A (en) * | 2012-12-18 | 2013-04-03 | 徐州竞舟电子科技有限公司 | Drill hole positioning and guiding device |
| CN204584349U (en) * | 2014-12-27 | 2015-08-26 | 渤海船舶重工有限责任公司 | Small space stuffing-box weldment drilling equipment |
| CN208374360U (en) * | 2018-06-14 | 2019-01-15 | 沪东中华造船(集团)有限公司 | A kind of ship gear-box foundation bolt reaming device |
| CN110293401A (en) * | 2019-06-18 | 2019-10-01 | 沪东中华造船(集团)有限公司 | A kind of skeleton and its application method for ship equipment pedestal drilling and reaming |
-
2020
- 2020-07-20 CN CN202010698283.7A patent/CN112027026A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5224682A (en) * | 1991-08-29 | 1993-07-06 | Baughman James A | Drill holding mechanism |
| CN2194231Y (en) * | 1993-05-22 | 1995-04-12 | 商贵宝 | Electromagnetic base frame driller for hole |
| CN2314879Y (en) * | 1997-12-26 | 1999-04-21 | 扬州电动工具厂 | Magnetic base drill |
| CN103008728A (en) * | 2012-12-18 | 2013-04-03 | 徐州竞舟电子科技有限公司 | Drill hole positioning and guiding device |
| CN204584349U (en) * | 2014-12-27 | 2015-08-26 | 渤海船舶重工有限责任公司 | Small space stuffing-box weldment drilling equipment |
| CN208374360U (en) * | 2018-06-14 | 2019-01-15 | 沪东中华造船(集团)有限公司 | A kind of ship gear-box foundation bolt reaming device |
| CN110293401A (en) * | 2019-06-18 | 2019-10-01 | 沪东中华造船(集团)有限公司 | A kind of skeleton and its application method for ship equipment pedestal drilling and reaming |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115771597A (en) * | 2022-11-25 | 2023-03-10 | 沪东中华造船(集团)有限公司 | Adjusting method and adjusting tool for perpendicularity between foundation bolt hole of equipment and plane of rack |
| CN115771597B (en) * | 2022-11-25 | 2024-06-11 | 沪东中华造船(集团)有限公司 | Method and tool for adjusting perpendicularity between equipment foundation bolt hole and frame plane |
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Application publication date: 20201204 |