CN114309710A - Drilling positioning method for welding gasket of ship gear box base - Google Patents
Drilling positioning method for welding gasket of ship gear box base Download PDFInfo
- Publication number
- CN114309710A CN114309710A CN202111510398.XA CN202111510398A CN114309710A CN 114309710 A CN114309710 A CN 114309710A CN 202111510398 A CN202111510398 A CN 202111510398A CN 114309710 A CN114309710 A CN 114309710A
- Authority
- CN
- China
- Prior art keywords
- gear box
- gearbox
- base
- hole
- positioning
- Prior art date
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 38
- 238000005553 drilling Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004080 punching Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 238000009434 installation Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- General Details Of Gearings (AREA)
Abstract
The invention relates to a drilling and positioning method for welding gaskets of a base of a ship gearbox, which comprises the following steps of: s1, hoisting the gear box into the cabin, adjusting the position of the gear box above the gear box base, and positioning and temporarily fixing the gear box; s2, installing a positioning sleeve in a bolt hole of a gear box base, inserting the positioning sleeve into the bolt hole of the gear box base, attaching the outer wall of the positioning sleeve to the inner wall of the bolt hole, and arranging a hole penetrating through the positioning sleeve in the center of the positioning sleeve; s3, inserting the ocean punch into the hole of the positioning sleeve, enabling the outer wall of the ocean punch to be attached to the inner wall of the hole, and knocking out a sample punching point on a welding gasket at the upper end of the base of the gearbox through the ocean punch; and S4, hanging away from the gear box, and drilling a hole on the welding gasket by taking the ocean punching point as the center. The drilling positioning method can accurately perform drilling positioning, can ensure that the drilling center of the welding gasket is concentric with the center of the bolt hole of the gear box base, and provides guarantee for the subsequent installation precision of the gear box.
Description
Technical Field
The invention relates to the field of ship construction, in particular to a drilling and positioning method for a welding gasket of a ship gear box base.
Background
In the ship construction, before the gear box is installed, drilling and positioning are needed to be carried out on a welding gasket of a base of the gear box, the welding gasket is drilled according to the drilling and positioning, and then the gear box is installed. According to the conventional drilling positioning method, after the gear box is positioned, a scriber is used for drawing a drilling circle on a welding gasket along the edge of a bolt hole of a base of the gear box, and the thickness height difference of the adjusting gasket exists between the lower plane of the base of the gear box and the upper end face of the welding gasket because the adjusting gasket is not installed at the moment, so that the drawn drilling circle is irregular and inaccurate, and the accuracy requirement of subsequent gear box installation is difficult to meet.
Disclosure of Invention
In order to solve the technical problem, the invention provides a drilling positioning method for a welding gasket of a ship gearbox base, which is used for realizing accurate positioning of drilling of the welding gasket and ensuring the accuracy of subsequent gearbox installation.
The technical purpose of the invention is realized by the following technical scheme:
a drilling and positioning method for welding gaskets of a base of a ship gearbox comprises the following steps:
s1, hoisting the gear box into the cabin, adjusting the position of the gear box above the gear box base, and positioning and temporarily fixing the gear box;
s2, installing a positioning sleeve in a bolt hole of a gear box base, inserting the positioning sleeve into the bolt hole of the gear box base, attaching the outer wall of the positioning sleeve to the inner wall of the bolt hole, and arranging a hole penetrating through the positioning sleeve in the center of the positioning sleeve;
s3, inserting the ocean punch into the hole of the positioning sleeve, enabling the outer wall of the ocean punch to be attached to the inner wall of the hole, and knocking out a sample punching point on a welding gasket at the upper end of the base of the gearbox through the ocean punch;
and S4, hanging away from the gear box, and drilling a hole on the welding gasket by taking the ocean punching point as the center.
Further, when the gearbox is positioned, the method comprises the following steps:
step 1, finding out a reference point on the front bulkhead and the rear bulkhead of the gear box cabin according to requirements, wherein a connecting line between the two reference points is the position of a theoretical central line of an output shaft of the gear box;
step 2, connecting a steel wire rope between the two reference points, wherein the steel wire rope penetrates through an inner hole of an output shaft of the gear box, and hanging weights at two ends of the steel wire rope to enable the steel wire rope to be in a tensioning state;
and 3, adjusting the position of the gear box to enable the distance between the flange of the output shaft of the gear box and the rear wall of the gear box to meet the requirement, and enabling the center of the inner hole of the output shaft of the gear box to coincide with the center of the steel wire rope to complete the positioning of the gear box.
Furthermore, after the gear box is positioned, the gear box is temporarily fixed on the gear box base through clamping the C-shaped clamp, fixing the jacking device and fixing the adjusting bolt.
Further, in step 3, when the flange of the output shaft of the gear box is away from the rear wall of the gear box, the method comprises the following steps:
step 3.1, respectively installing and welding two fixing frames on the front side and the rear side of the gear box, wherein the fixing frames are fixedly welded at the bilge;
and 3.2, installing a jacking device between the fixing frame and the gear box base, wherein one end of the jacking device is abutted against the fixing frame, the other end of the jacking device is abutted against the gear box base, and the gear box output shaft flange moves back and forth along the steel wire rope by adjusting the jacking device until the distance between the gear box output shaft flange and the rear bulkhead of the gear box cabin meets the requirement.
Further, in step 3, when the center of the inner hole of the output shaft of the gear box is adjusted to coincide with the center of the steel wire rope, the method comprises the following steps:
3.3, respectively installing and welding two fixing frames on the left side and the right side of the gear box, wherein the fixing frames are fixedly welded at the bilge;
and 3.4, installing a jacking device between the fixing frame and the gear box, wherein one end of the jacking device is abutted against the fixing frame, the other end of the jacking device is abutted against the gear box, and the gear box is moved left and right relative to the steel wire rope by adjusting the jacking device until the steel wire rope is positioned in the middle of the left and right positions in the inner hole of the output shaft of the gear box.
Further, in step 3, when the center of the inner hole of the output shaft of the gear box is adjusted to coincide with the center of the steel wire rope, the method further comprises the following steps:
step 3.5, arranging an internal threaded hole for adjusting the height on the gear box base, installing an adjusting bolt in the internal threaded hole on the gear box base, and adjusting the height of the gear box through the relative screwing position of the adjusting bolt and the internal threaded hole of the gear box base;
and 3.6, rotating the adjusting bolt to enable the adjusting bolt to change the extending length relative to the base of the gear box to adjust the height of the gear box until the middle part of the upper and lower positions of the steel wire rope in the inner hole of the output shaft of the gear box.
Compared with the prior art, the drilling positioning method has the advantages that the drilling positioning can be accurately carried out, the drilling center of the welding gasket and the center of the bolt hole of the gear box base can be concentric, and the subsequent installation precision of the gear box is guaranteed.
Drawings
FIG. 1 is a schematic view of the positioning of a gearbox according to the present invention.
FIG. 2 is a schematic top view of the positioning of the gearbox of the present invention.
Fig. 3 is a schematic view of the positioning sleeve of the present invention.
FIG. 4 is a schematic view of the drilling process of the welding gasket of the base of the marine gearbox according to the invention.
In the figure, 1, the aft bulkhead; 2. a wire rope; 3. an inner hole of an output shaft of the gear box; 4. a gearbox base; 5. adjusting the bolt; 6. a fixed mount; 7. a jacking device; 8. bolt holes; 9. a positioning sleeve; 10. ocean plunger; 11. welding a gasket; 12. a gear case base; 13. a C-shaped clamp; 14. a front bulkhead.
Detailed Description
The technical solution of the present invention is further described below with reference to specific embodiments:
a drilling and positioning method for welding gaskets of a base of a ship gearbox is shown in figure 4 and comprises the following steps:
s1, temporarily fixing the gearbox after positioning
Hoisting the gear box into the cabin, adjusting the position of the gear box above the gear box base, and positioning and temporarily fixing the gear box; after the gear box is positioned, the gear box is temporarily fixed on a gear box base 12 through the C-shaped clamp 13, the fixed jacking device 7 and the fixed adjusting bolt 5.
Specifically, when the gearbox is positioned, the method comprises the following steps:
step 1, respectively finding out a reference point on a front bulkhead 14 and a rear bulkhead 1 of a gearbox cabin according to requirements, wherein a connecting line between the two reference points is the position of a theoretical central line of an output shaft of the gearbox;
step 2, connecting a steel wire rope 2 between the two reference points, wherein the steel wire rope 2 penetrates through an inner hole 3 of an output shaft of the gear box, and hanging weights at two ends of the steel wire rope 2 to enable the steel wire rope 2 to be in a tensioning state;
and 3, adjusting the position of the gear box to enable the distance between the gear box output shaft flange and the rear wall of the gear box to meet the requirement, and enabling the center of an inner hole 3 of the gear box output shaft to coincide with the center of the steel wire rope 2 to complete the positioning of the gear box. As shown in fig. 1.
Specifically, the positioning of the gear box in step 3 includes adjusting the front and rear positions of the gear box, adjusting the left and right positions, and adjusting the high and low positions, and the front and rear positions, the left and right positions, and the high and low positions of the gear box are not sequentially adjusted and can be performed simultaneously.
Adjusting the front and rear positions of the gear box:
step 3.1, respectively installing and welding two fixing frames 6 on the front side and the rear side of the gear box, and welding and fixing the fixing frames 6 on the bilge;
and 3.2, installing a jacking device 7 between the fixed frame 6 and the gear box base 4, wherein one end of the jacking device 7 is abutted against the fixed frame 6, the other end of the jacking device 7 is abutted against the gear box base 4, and the gear box output shaft flange moves back and forth along the steel wire rope 2 by adjusting the jacking device 7 until the distance from the gear box output shaft flange to the rear bulkhead 1 of the gear box cabin meets the requirement.
Adjusting the left and right positions of the gear box:
3.3, respectively installing and welding two fixing frames 6 on the left side and the right side of the gear box, and welding and fixing the fixing frames 6 on the bilge;
and 3.4, installing a jacking device 7 between the fixing frame 6 and the gear box base 4, wherein one end of the jacking device 7 is abutted against the fixing frame 6, the other end of the jacking device 7 is abutted against the gear box base 4, and the gear box is moved left and right relative to the steel wire rope 2 by adjusting the jacking device 7 until the steel wire rope 2 is positioned in the middle of the left and right positions in the inner hole 3 of the output shaft of the gear box.
Adjusting the high and low positions of a gearbox
Step 3.5, arranging an internal threaded hole for adjusting the height position on the gear box base 4, installing an adjusting bolt 5 in the internal threaded hole on the gear box base, and adjusting the height of the gear box through the relative screwing position of the adjusting bolt 5 and the internal threaded hole of the gear box base 4;
and 3.6, rotating the adjusting bolt to enable the adjusting bolt 5 to extend out of the gear box base 4 for length change to adjust the height of the gear box until the middle part of the upper and lower positions of the steel wire rope 2 in the inner hole 3 of the output shaft of the gear box.
S2, mounting and positioning sleeve
Install position sleeve 9 in gear box base 4's bolt hole 8, insert position sleeve 9 in gear box base bolt hole 8, position sleeve 9 outer wall laminating bolt hole 8 inner wall, position sleeve 9 center is equipped with the hole that runs through the position sleeve.
S3, installing a ocean plunger 10 in the positioning sleeve 9, and striking ocean punching points through the ocean plunger 10
The ocean punch 10 is inserted into the hole of the positioning sleeve 9, the outer wall of the ocean punch 10 is attached to the inner wall of the hole, and a sample punching point is knocked out on a welding pad 11 at the upper end of a gear box base 12 through the ocean punch. As shown in fig. 3
S4 drilling of welding gasket 11
After being lifted off the gear box, the weld pad 11 is drilled with the ocean punch point as the center.
The present invention is further explained and not limited by the embodiments, and those skilled in the art can make various modifications as necessary after reading the present specification, but all the embodiments are protected by the patent law within the scope of the claims.
Claims (6)
1. A drilling and positioning method for welding gaskets of a base of a ship gearbox is characterized by comprising the following steps:
s1, hoisting the gear box into the cabin, adjusting the position of the gear box above the gear box base, and positioning and temporarily fixing the gear box;
s2, installing a positioning sleeve in a bolt hole of a gear box base, inserting the positioning sleeve into the bolt hole of the gear box base, attaching the outer wall of the positioning sleeve to the inner wall of the bolt hole, and arranging a hole penetrating through the positioning sleeve in the center of the positioning sleeve;
s3, inserting the ocean punch into the hole of the positioning sleeve, enabling the outer wall of the ocean punch to be attached to the inner wall of the hole, and knocking out a sample punching point on a welding gasket at the upper end of the base of the gearbox through the ocean punch;
and S4, hanging away from the gear box, and drilling a hole on the welding gasket by taking the ocean punching point as the center.
2. The drilling and positioning method for the welding gasket of the marine gearbox according to claim 1, wherein the positioning of the gearbox comprises the following steps:
step 1, finding out a reference point on the front bulkhead and the rear bulkhead of the gear box cabin according to requirements, wherein a connecting line between the two reference points is the position of a theoretical central line of an output shaft of the gear box;
step 2, connecting a steel wire rope between the two reference points, wherein the steel wire rope penetrates through an inner hole of an output shaft of the gear box, and hanging weights at two ends of the steel wire rope to enable the steel wire rope to be in a tensioning state;
and 3, adjusting the position of the gear box to enable the distance between the flange of the output shaft of the gear box and the rear wall of the gear box to meet the requirement, and enabling the center of the inner hole of the output shaft of the gear box to coincide with the center of the steel wire rope to complete the positioning of the gear box.
3. The drilling and positioning method for the welding gasket of the marine gearbox as claimed in claim 1 or 2, wherein after the gearbox is positioned, the gearbox is temporarily fixed on the gearbox base through clamping C-shaped clamps, jacking devices and adjusting bolts.
4. The drilling and positioning method for the welding gasket of the marine gearbox according to the claim 3, wherein in the step 3, when the flange of the output shaft of the gearbox is away from the rear wall of the gearbox, the method comprises the following steps:
step 3.1, respectively installing and welding two fixing frames on the front side and the rear side of the gear box, wherein the fixing frames are fixedly welded at the bilge;
and 3.2, installing a jacking device between the fixing frame and the gear box base, wherein one end of the jacking device is abutted against the fixing frame, the other end of the jacking device is abutted against the gear box base, and the gear box output shaft flange moves back and forth along the steel wire rope by adjusting the jacking device until the distance between the gear box output shaft flange and the rear bulkhead of the gear box cabin meets the requirement.
5. The drilling and positioning method for the welding gasket of the marine gearbox according to claim 3, wherein in the step 3, when the center of the inner hole of the output shaft of the gearbox is adjusted to be coincident with the center of the steel wire rope, the method comprises the following steps:
3.3, respectively installing and welding two fixing frames on the left side and the right side of the gear box, wherein the fixing frames are fixedly welded at the bilge;
and 3.4, installing a jacking device between the fixing frame and the gear box, wherein one end of the jacking device is abutted against the fixing frame, the other end of the jacking device is abutted against the gear box, and the gear box is moved left and right relative to the steel wire rope by adjusting the jacking device until the steel wire rope is positioned in the middle of the left and right positions in the inner hole of the output shaft of the gear box.
6. The drilling and positioning method for the welding gasket of the marine gearbox according to claim 3, wherein in the step 3, when the center of the inner hole of the output shaft of the gearbox is adjusted to coincide with the center of the steel wire rope, the method further comprises the following steps:
step 3.5, arranging an internal threaded hole for adjusting the height on the gear box base, installing an adjusting bolt in the internal threaded hole on the gear box base, and adjusting the height of the gear box through the relative screwing position of the adjusting bolt and the internal threaded hole of the gear box base;
and 3.6, rotating the adjusting bolt to enable the adjusting bolt to change the extending length relative to the base of the gear box to adjust the height of the gear box until the middle part of the upper and lower positions of the steel wire rope in the inner hole of the output shaft of the gear box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111510398.XA CN114309710A (en) | 2021-12-10 | 2021-12-10 | Drilling positioning method for welding gasket of ship gear box base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111510398.XA CN114309710A (en) | 2021-12-10 | 2021-12-10 | Drilling positioning method for welding gasket of ship gear box base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114309710A true CN114309710A (en) | 2022-04-12 |
Family
ID=81051034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111510398.XA Pending CN114309710A (en) | 2021-12-10 | 2021-12-10 | Drilling positioning method for welding gasket of ship gear box base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114309710A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114889763A (en) * | 2022-05-27 | 2022-08-12 | 沪东中华造船(集团)有限公司 | Ship main engine gear box installation and adjustment method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202271007U (en) * | 2011-10-14 | 2012-06-13 | 天津赛瑞机器设备有限公司 | Drilling template for reinforcement plate of speed-up stand in wind power equipment |
| CN107367370A (en) * | 2017-07-05 | 2017-11-21 | 大连理工大学 | Floating gate Logistics automatic system device and multiple degrees of freedom method of work |
| CN110102795A (en) * | 2019-05-28 | 2019-08-09 | 沪东中华造船(集团)有限公司 | A kind of steering engine drilling connecting screw hole method on ship in small space steering gear flat |
| CN110789686A (en) * | 2019-11-29 | 2020-02-14 | 江南造船(集团)有限责任公司 | Ship shafting installation method |
| CN110899757A (en) * | 2019-10-17 | 2020-03-24 | 沪东中华造船(集团)有限公司 | Punching tool for gearbox leg under narrow space condition and use method |
| CN110919049A (en) * | 2019-12-11 | 2020-03-27 | 江苏华电铁塔制造有限公司 | Double-hole gasket drilling die |
| CN113751764A (en) * | 2021-09-24 | 2021-12-07 | 贵州永红航空机械有限责任公司 | Bushing type radiator core subassembly drill jig and drilling method |
-
2021
- 2021-12-10 CN CN202111510398.XA patent/CN114309710A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202271007U (en) * | 2011-10-14 | 2012-06-13 | 天津赛瑞机器设备有限公司 | Drilling template for reinforcement plate of speed-up stand in wind power equipment |
| CN107367370A (en) * | 2017-07-05 | 2017-11-21 | 大连理工大学 | Floating gate Logistics automatic system device and multiple degrees of freedom method of work |
| JP2019015712A (en) * | 2017-07-05 | 2019-01-31 | 大連理工大学Ｄａｌｉａｎ Ｕｎｉｖｅｒｓｉｔｙ ｏｆ Ｔｅｃｈｎｏｌｏｇｙ | Floating caisson model test device and multidegree-of-freedom working method |
| CN110102795A (en) * | 2019-05-28 | 2019-08-09 | 沪东中华造船(集团)有限公司 | A kind of steering engine drilling connecting screw hole method on ship in small space steering gear flat |
| CN110899757A (en) * | 2019-10-17 | 2020-03-24 | 沪东中华造船(集团)有限公司 | Punching tool for gearbox leg under narrow space condition and use method |
| CN110789686A (en) * | 2019-11-29 | 2020-02-14 | 江南造船(集团)有限责任公司 | Ship shafting installation method |
| CN110919049A (en) * | 2019-12-11 | 2020-03-27 | 江苏华电铁塔制造有限公司 | Double-hole gasket drilling die |
| CN113751764A (en) * | 2021-09-24 | 2021-12-07 | 贵州永红航空机械有限责任公司 | Bushing type radiator core subassembly drill jig and drilling method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114889763A (en) * | 2022-05-27 | 2022-08-12 | 沪东中华造船(集团)有限公司 | Ship main engine gear box installation and adjustment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113916087A (en) | Positioning and measuring tool and positioning and measuring method for ship equipment base | |
| CN114309710A (en) | Drilling positioning method for welding gasket of ship gear box base | |
| CN101058334A (en) | Method of mounting tail fin end support | |
| CN114932242B (en) | Tool for fine machining and positioning anti-vibration of aircraft part joint hole and fine machining process | |
| CN211568250U (en) | Shafting positioning device for ship repair and construction | |
| CN202162517U (en) | Splicing auxiliary apparatus for steel pipe pole body | |
| CN201997888U (en) | Welding jig | |
| CN111703550A (en) | Auxiliary tool for mounting railing base on ship and using method thereof | |
| CN100427357C (en) | Multifunctional equipment of tool set up in use for installing towed bird type electric propulsion plant | |
| CN104443334B (en) | A kind of all-rotation device Accessory Members high accuracy installation method | |
| CN111055975A (en) | Eye plate assembly and application thereof | |
| CN113770979B (en) | Drilling coring device and method for marine equipment base gasket | |
| CN212761903U (en) | Automatic welding clamp plate fixture device for steel tower production | |
| CN210139083U (en) | Positioning and mounting device | |
| CN201301182Y (en) | Balance weight installing, positioning and guiding device | |
| CN200981158Y (en) | Engine cylinder body chamber clamp | |
| CN203245622U (en) | Anti-rotating hole clamp of drilling marine oil conduit joint | |
| CN220863809U (en) | Position detection clamp for shaft parts | |
| CN219768071U (en) | Diaphragm compressor cylinder cap assembly quality | |
| CN114482821B (en) | Quick installation device and installation method for steel structure film shutter | |
| CN216111546U (en) | Connecting structure for hydraulic cylinder | |
| CN216070438U (en) | Vibration isolation support for precision measurement device of ship | |
| CN211028230U (en) | Auxiliary guide device for processing pin hole of crankshaft intermediate flange | |
| CN218927595U (en) | Automobile front end cover lock mounting auxiliary tool | |
| CN219882319U (en) | Welding square nut detection clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |